WO2000021740A1 - Method of applying powder material, tablet production method, powder material application device for upper punch, powder material application device for lower punch, powder material application device, and external lubrication compressing machine - Google Patents

Abstract

A method of applying powder material for applying powder material sequentially onto respective surfaces of a plurality of mortars, which compression-forms molding materials, of a plurality of upper punches and of a plurality of lower punches, the method comprising the steps of applying powder material onto the upper surfaces of lower punches and the inner wall surfaces of mortars by spraying directly powder material dispersed in an air pulsation wave stream onto the upper surfaces of the lower punches inserted up to specified positions in the mortars, and at the same time applying, under the influence of an air stream rushing upward from below, powder material dispersed in an air pulsation wave stream to the lower surfaces of those upper punches that do not form pairs with the above lower punches.

Description

 Description Powder material coating method, tablet manufacturing method, powder material coating device for upper punch, powder material coating device for lower punch, powder material coating device, and external lubrication type Locking Machine Technical Field

 The present invention relates to a method for applying a powder material, a method for producing a tablet, an apparatus for applying a powder material, and an external lubricating tableting machine. In particular, the tablet is mixed with air pulsating waves and sent to the tableting device side. A powder material application method, a tablet manufacturing method, and a powder material capable of uniformly applying a powder material such as a lubricant to the lower surface of the upper punch, the upper surface of the lower punch, and the inner peripheral surface. The present invention relates to a material application device and an external lubricating tableting machine using such a powder material application device. Background art

 When compressing molding materials to produce tablets, the following techniques are used to prevent tableting failures such as sticking, laminating, and cabbing on tablets to be manufactured, such as punching of a tableting machine. For example, there is an external lubricating tableting machine described in Japanese Patent Application Publication No. 56-14098, and an external lubricating tableting machine that the present inventors have already proposed. Kaihei 7—See 1 2 4 2 3 1).

 FIG. 34 is a process chart schematically showing a method for producing tablets using a conventional external lubricating tableting machine described in Japanese Patent Application Laid-Open No. 56-14098.

 In this external lubricating tablet press 101, tablets are produced by the following method.

 First, in the steps shown in FIGS. 34 (a) and 34 (b), a predetermined number on a turntable 12 1 provided with a plurality of words 122 The lubricant sprayer 191 is provided at the position of, and in the sprayer 191, the rotation of the rotary table 102 sequentially turns into The lubricant powder L is placed on the upper surface S 1 24 of the lower punch 1 2.4 inserted up to the position of.

Then, in the process shown in Fig. 34 (c), the sprayer 19 The lower punch with lubricant powder L placed on the upper punch 123 ··· and the upper surface S 123 ··· successively accommodated in the lubricant spraying chamber 192 by the rotation of the rotary table 121. With the die 122 inserted into the specified position, the nozzle 193 provided in the spraying chamber 19.2 moves the upper surface of each of the lower punches 124 S 124

Then, by blowing compressed air, the lubricant L placed on the upper surface S124 of each of the lower punches 124 is blown upward to be separated and separated. The powder powder L is applied to the inner peripheral surface of each of the mortars 122

Attached to each lower surface S 123, and then the inner peripheral wall S 122

• A die 122 with lubricant powder L applied to each of the lower surfaces S 123 • An upper punch 123 with lubricant powder L applied to each of the lower surfaces S 123 · · · and an upper surface S 124

Using a lower punch 124 coated with lubricant powder L on each of the molding materials M, the molding material M is compression molded to produce tablets.

 FIG. 35 is a configuration diagram schematically showing a main part of a conventional external lubricating tableting machine described in Japanese Patent Application Laid-Open No. 7-124231 and already proposed by the present inventors. The external lubricating tablet press 201 is fixedly provided at a predetermined position (lubricant spray point) of the rotary table 221 of the rotary tablet press so that the rotary table 221 can slide. In addition, a lubricant spray chamber 213 is provided.

 An air pulsation wave generator 208 is connected to the lubricant spray chamber 21.3 via a conduit T202.

 In the middle of the conduit T202, a hopper 251 containing the lubricant powder L is connected to a lubricant discharge valve 205, which is an electromagnetic valve that can be opened and closed by an arithmetic processing unit (not shown). It is connected with interposition.

 In FIG. 35, the member indicated by T203 is a material supply pipe, and the member device indicated by 259 is compressed into the hopper 251 in order to smoothly discharge the lubricant powder L from the hopper 251. The air sources that supply the air are shown respectively.

 Further, in the lubricant spray chamber 213, a plurality of days 222 provided on the rotary table 221 are sequentially stored by rotation of the rotary table 221.

In addition, in the lubricant spray chamber 213, a plurality of Each of the plurality of upper punches 223 ··· 'and the plurality of lower punches 2 24 · · · rotating in synchronization with the plurality of statements 222 · · · rotated by the rotation of the rotary table 221. · Are to be accommodated in turn. ,.

 Further, an air suction means 211 such as a blower is connected to the lubricant spray chamber 213 via a pipe T204.

 A method for continuously tableting tablets by the external lubrication method using the external lubricating tablet press 201 will be described.

 When tablets are continuously tableted, first, the rotary tabletting machine 202 is driven to rotate the rotary table 221 and a plurality of upper punches 223... And a plurality of lower punches 224. Rotate at the rotation speed of.

 As described above, in the lubricant spray chamber 213, the rotation of the rotary table 221 causes a plurality of upper punches corresponding to each of the plurality of 222 Each of the plurality of lower punches 224 is fed in order.

 Also, the air pulsation wave generator 208 is driven to generate a positive pressure air pulsation wave in the conduit T202 as shown in FIG. 36 (a) or FIG. 36 (b).

 Here, the positive pressure air pulsation wave shown in FIG. 36 (a) has a peak of its vibration at a higher pressure than the atmosphere outside the conduit T202, and a trough of its vibration at its large peak outside the conduit T202. It shows a wave of air pulsating at a constant frequency at a pressure approximately equal to the atmospheric pressure, and the pulsating air pulsation at positive pressure shown in Fig. 36 (b) shows that the peaks and valleys of the vibration are both Shows a wave of air pulsating at a constant frequency above atmospheric pressure outside conduit T202. Next, the air suction means 211 is driven.

 In this device 201, when the air pulsation wave generator 208 is driven to generate a positive pressure air pulsation wave in the conduit T 202, the lubricant discharge valve responds to the positive pressure air pulsation wave. 205 opens and closes in conjunction.

Then, when the lubricant discharge valve 205 is opened, the lubricant L that has dropped into the material supply pipe T 203 is sent into the conduit 213, and the airflow of the positive pressure air pulsating wave is And is fluidized and sprayed into the lubricant spray chamber 213 by nozzle means 294 provided at the end of the conduit T 202. At this time, the inner peripheral wall S 2 2 2 of the die 2 2 2, which is housed in the lubricant spraying chamber 2 13 and forms a pair, with the lower punches 2 2 4 inserted to a predetermined position. The lubricant powder L is applied almost simultaneously to the lower surface S2 23 of the upper punch 222 and the upper surface S224 of the lower punch 222. The lubricating powder L was applied, and the upper and lower punches 22, 23, and 22 were used as molding material filling points (see molding material filling points P 2 shown in FIGS. 2 and 3). ), Where the molding material (in the external lubrication method, usually contains the lubricant powder in the molding material) in the space formed by the day 222 and the lower punch 222. L added 'Not kneaded.) M is filled.

 Then, after the mortar 222 and the lower punch 224 filled with the molding material M are removed by a cutting means (not shown), the excess molding material is removed, and then the compression molding point (see FIG. 2 and FIG. 3). The pre-compression point P 3 and the main compression point P 4 shown in the figure) are sent to, where they form a pair, and are compressed and formed by the upper and lower punches 22 and 22 and the tablets. To be.

 Thereafter, the tablets manufactured in this manner are sequentially sent to the tablet discharge point (see the tablet discharge point P5 shown in FIGS. 2 and 3), where It is to be taken out sequentially.

 This external lubricating tableting machine 201 mixes and disperses the fluidized lubricant powder L into the positive pressure air pulsating wave air stream in the lubricant spray chamber 2 13 to lubricate the lubricant powder L. It is housed in the spray agent spray chamber 2 1 3, said 2 2 2,, upper punch 2 2 3 'and lower punch 2 2 4 The inner peripheral wall S 2 2 2, the lower surface S 2 2 3 of the upper punch 2 2 3, and the upper surface S 2 2 4 of the lower punch 2 2 4 Even if the tablet is continuously compressed by the external lubrication method, even when the tablet is compressed, a punch 2 2 3 · · · 2 2 4 · · · It is possible to produce tablets at the production pace without causing squeaks and without causing tableting troubles (laminating, cabling, statesking, etc.) on the produced tablets. become.

By the way, in recent years, in order to respond to the needs of the medical field, such as wanting to be able to prescribe the dosage according to the weight and age of the patient, tablets have been Tablet with a score line in the center of the tablet There is a request to ship tablets with a company code stamped on them so that they can be easily identified, or tablets with a product code stamped on them so that they can easily identify what the tablets are. . ,.

 In order to meet such demands, dividable tablets with a score line at the center of the tablet and tablets with company code or product code stamped on them are externally lubricated tablet presses 101 and 201. When manufactured, tableting failure (laminating, cabbing, sticking, etc.) is likely to occur at the part where the tablet is scored or where the mark is provided.

 In recent years, a surface modifier may be applied to the tablet surface in order to improve the wettability of the tablet surface, but even in such a case, the tablet surface may have a score line or marking. Thus, there is a problem that the surface modifier cannot be applied uniformly. Disclosure of the invention

 The present invention has been made in order to solve the above problems, and is an external lubricating tablet, in which a dividable tablet provided with a dividing line in the center of the tablet, a company code or a product code is imprinted. Even tablets can be used for continuous tableting without causing tableting troubles (laminating, cabbing, sticking, etc.), powder material (lubricant) application method, tablet manufacturing method, powder The purpose is to provide a body material coating device and an external lubricated keying machine.

 The present invention has been made in order to solve the above problems, and is an external lubricating tablet, in which a dividable tablet provided with a dividing line in the center of the tablet, a company code or a product code is imprinted. Powder material (surface modifier) can be uniformly applied to tablets, powder material (surface modifier) coating method, tablet manufacturing method, powder material coating device, and The purpose is to provide an external lubricating tablet press.

The inventor of the present invention has proposed tableting failure (laminating, cabbing, and state) for external lubricating tablets, which are dividable tablets having a score line at the center of the tablet or tablets with a company code or product code. Has been engaged in the development of powder material coating equipment suitable for use as a lubricant application equipment for external lubricating tablet presses that can continuously perform tableting without causing kinging. As a result of research, powder materials such as lubricants are generally difficult to adhere to the lower surface of the upper punch due to the gravity, while extra powder is attached to the upper surface of the lower punch. He came to realize that powder materials such as lubricants were easily deposited.

 In order to uniformly apply a powder material such as a lubricant to the lower surface of the upper punch, the inner peripheral wall surface of the mortar, and the upper surface of the lower punch, the surfaces of the upper punch, At the time, rather than applying a powder material such as a lubricant, the lower surface of the upper punch, on which the powder material such as the lubricant is less likely to adhere than the surface of the lower punch, has a mortar and a lower part. In addition to the step of applying a powder material such as a lubricant to the surface of a punch, it has been found that it is preferable to apply a powder such as a lubricant under other conditions. .

 Excessive lubricant and the like easily adhere and accumulate. The upper surface of the lower punch is sprayed with a powder material such as a lubricant at once, while the extra powder material easily adheres and accumulates. On the upper surface of the lower punch, if the powder material is blown over the upper surface in a timely manner by an air current rising from the lower side to the lower surface of the upper punch, the inner peripheral wall, the lower punch We believe that it is possible to apply the powder uniformly to the upper surface and the lower surface of the upper punch, and to spray such a powder material such as a lubricant onto the upper and lower punches and the structure of the powder material application chamber. As a result of studying the device, the present invention was completed.

 That is, in the powder material applying method according to claim 1, the powder material is sequentially applied to a plurality of dies for compression-molding the molding material, and a surface of each of a plurality of upper punches and a plurality of lower punches. A method of applying a powder material, in which the powder material dispersed in the air current of the air pulsating wave is directly sprayed on the upper surface of the lower punch inserted to a predetermined position within the lower punch and the upper surface of the lower punch and the While applying the powder material to the inner peripheral wall, the powder material dispersed in the air current of the air pulsating wave is applied to the lower surface of the upper punch, which does not form a pair with the lower punch, under the air current that goes upward from below. I did it.

 Here, the term “powder material” used herein means a lubricant powder or a surface modifier powder.

 As the lubricant, various powdery ones can be used. Examples of such a lubricant include metal stearates (Mg salt, Ca salt, etc.), starch powder, anhydrous silicate powder, and the like.

Various surface modifiers can be used as long as they are powdery. Examples of such a surface modifier include carnapa wax, polyethylene glycol, silica and the like. In this method of applying a powder material, the powder material is easily deposited and deposited. The powder material mixed with the air pulsating wave is directly sprayed on the upper surface of the lower punch, so that the excess powder material is deposited. By blowing off the powder, the powder material is prevented from adhering and accumulating on the upper surface of the lower punch, and the powder material is uniformly applied to the upper surface of the lower punch.

 Also, compared to the upper surface of the lower punch, the powder material is less likely to adhere, and the inner peripheral wall where the lower punch has been inserted to a predetermined position has excess powder material blown off from the upper surface of the lower punch. Because the parts adhere, the same amount of powder material as the one applied to the upper surface of the lower punch is applied uniformly to the inner peripheral wall.

 The powder material not applied on the upper surface of the lower punch and the inner peripheral wall is mixed with air, dispersed, and sent to the lower surface of the upper punch constituting the next set in a fluidized state. On the lower surface of the upper punch, the powder material is put on the airflow from the lower side to the upper side with respect to the lower surface of the upper punch, so that the powder material adheres over time, so that the powder material is related to gravity. Approximately the same amount of powder material as that applied to the upper surface of the lower punch and the inner peripheral wall is said to be uniformly applied to the lower surface of the upper punch, which is difficult to adhere to.

 In order to apply the powder material uniformly on the upper surface of the lower punch so as not to adhere or accumulate, it is necessary to apply a positive pressure air pulsation wave to the center of the upper surface of the lower punch in a substantially vertical direction. It is preferable to spray a powder material which has been mixed, dispersed and fluidized.

 In this way, the powder material, which tends to adhere and accumulate on the upper surface of the lower punch, tends to adhere to the inner peripheral wall where the lower punch is inserted to a predetermined position from the approximate center of the upper surface of the lower punch. The powder material is evenly sprayed, whereby the powder material adheres uniformly to the inner peripheral wall. The method for applying a powder material according to claim 2 is a method for compressing and molding a molding material, wherein the powder material is sequentially applied to the surface of each of a plurality of upper punches and a plurality of lower punches. In the method of applying the material, the powder material is continuously supplied to the upper surface of the lower punch and the inner peripheral wall surface, and then to the upper punch which is not paired with the lower punch. The powder material dispersed in the air current of the air pulsating wave is directly blown onto the upper surface of the lower punch inserted to a predetermined position, so that the powder material is applied to the upper surface of the lower punch and the inner peripheral wall surface. It was then applied to the lower surface of the upper punch, which did not form a pair with the lower punch, under an airflow from below to above.

In this powder material application method, the upper surface of the lower punch and the lower punch are inserted to predetermined positions. The application of the powder material to the inner peripheral wall surface and the application of the powder material to the lower surface of the upper punch are performed by a series of airflows, and the upper surface of the lower punch and the inner peripheral wall are Since the excess powder material is used for application to the lower surface of the upper punch, the powder material can be effectively used without waste.

 The method for applying a powder material according to claim 3 is the method for applying a powder material according to claim 1 or 2, wherein the lower surface of the upper punch, which does not form a pair with the lower punch, faces upward from below. The airflow is generated by driving a suction means having a suction port at a position above the lower surface of the upper punch, and the excess powder material is suctioned and removed by the suction means. In this method of applying a powder material, a simple configuration in which suction means having a suction port is provided at a position above the lower surface of the upper punch can generate an airflow from below to above on the lower surface of the upper punch. it can.

 Also, for the upper punch, excess powder material (for example, powder material that does not reach the upper surface of the upper punch and drifts like a cloud) is immediately removed from the suction port by suction. The powder material does not scatter and adhere to other equipment parts.

 The method for applying a powder material according to claim 4 is the same as the method for applying a powder material according to any one of claims 1 to 3, except that the powder material applied to the upper surface of the lower punch and the inner peripheral wall surface is used. Excessive powder material for the upper surface of the lower punch and the inner peripheral wall of the sun is sprayed directly onto the upper surface of the lower punch inserted into the mortar to the specified position, dispersed in the air current of the air pulsating wave The place is a place where it does not conduct, and it was made to remove by suction.

 In this method of applying powder material, extra powder material for the upper surface of the lower punch and the inner peripheral wall among the powder materials applied to the upper surface of the lower punch and the inner peripheral wall is referred to as The place where the powder material dispersed in the air current of the air pulsating wave is directly blown onto the upper surface of the lower punch inserted to the specified position is a place where it does not conduct electricity. The powder applied to the upper surface of the lower punch and the inner wall of the lower punch without affecting the conditions for directly blowing the powder material dispersed in the air current of the air pulsating wave onto the upper surface of the lower punch inserted up to the position Excess powder material in the upper surface of the lower punch and the inner peripheral wall of the die can be removed by suction.

The powder material applied to the upper surface of the lower punch and the inner peripheral wall of the lower punch, and the extra powder material for the upper peripheral surface of the lower punch and the inner peripheral wall of the H, may adhere to the surface of the rotating table. ing Powder is also included.

 In the method for producing a tablet according to the fifth aspect, the predetermined position in the method for applying a powder material according to any one of the first to fourth aspects is a position where the lower punch is located at the lowest position. .

 In this tablet manufacturing method, the lower punch is applied to the upper surface of the lower punch and the inner peripheral wall of the die at the lowest position in In addition, since the powder material is applied evenly to the inner peripheral wall of the die that comes into contact with the molding material, the molding material does not adhere when manufacturing tablets.

 As a result, tablets can be produced without causing tableting troubles such as stateing, laminating, and cabbing, so that tablet production efficiency is improved. The tablet manufacturing method according to claim 6, comprising a plurality of statements, a plurality of upper punches and a plurality of lower punches provided so as to correspond to each of the plurality of statements, A step of sequentially applying the powder material to the punch and a plurality of lower punches, and a pair of the powder material was applied. The upper punch and the powder material coated with the powder material were applied. A step of sequentially compressing and molding the molding material using a lower punch; a plurality of said steps of sequentially applying a powder material to a plurality of upper punches and a plurality of lower punches are prescribed in the statement; The powder material dispersed in the air current of the air pulsating wave is directly sprayed on the upper surface of the lower punch inserted up to the position of, so that the powder material is applied to the upper surface of the lower punch and the inner peripheral wall, The powder dispersed in the air pulsating air current is applied to the lower surface of the upper punch that is not paired with the lower punch. , It was to be applied.

In this tablet manufacturing method, the inner peripheral wall surface, the lower surface of the upper punch, and the upper surface of the lower punch where the lower punch is inserted to a predetermined position by using the powder material applying method according to claim 1 are described. The powder is applied to each of the two, and the inner peripheral wall surface on which the powder material is uniformly applied is described. The upper punch having the lower surface on which the powder material is applied uniformly, and the powder material is evenly applied. A lower punch having an upper surface applied at a time is sequentially used to compress the molding material to produce tablets. -As a result, when a lubricant is used as the powder material, the punch and the die do not suffer from stickiness and do not suffer from tableting troubles (laminating, caving, sticking, etc.). However, continuous tableting becomes possible. This makes it possible to manufacture external lubricating tablets on a production basis. When a surface modifier is used as the powder, the surface modifier can be uniformly applied to the punch and die.

 By using this method of manufacturing tablets, tablets can be manufactured using a punch uniformly coated with a surface modifying agent, so that the surface modifying agent was uniformly applied to the surface of the tablets. Tablets can be manufactured.

 The tablet manufacturing method according to claim 7, comprising a plurality of statements, a plurality of upper punches and a plurality of lower punches provided corresponding to each of the plurality of statements, A step of sequentially applying the powder material to the punch and a plurality of lower punches, and a step of applying the powder, which is a pair of the upper punch to which the powder material is applied and the lower part to which the powder material is applied; A step of sequentially compressing the molding material by using a punch, and a step of sequentially applying the powder material to a plurality of dies, a plurality of upper punches and a plurality of lower punches, wherein the powder material is The lower punch is continuously supplied to the upper surface of the lower punch and the inner peripheral wall of the sun, and then to the upper punch which is not paired with the lower punch. By directly blowing the powder material dispersed in the air current of the air pulsating wave, the powder material is applied to the upper surface of the lower punch and the inner peripheral wall surface. While applying a powder charge dispersed in a stream of pulsating vibration air, the lower surface of the punch on does not make lower punch and assembled, under a stream of air directed from below upward, and as applied. In this tablet manufacturing method, the application of the powder material to the inner peripheral wall where the upper surface of the lower punch and the lower punch are inserted to a predetermined position and the application of the powder material to the lower surface of the upper punch are described in a series. As the excess powder material is used for applying to the lower surface of the upper punch and the inner peripheral wall surface of the lower punch, the excess powder material is used for application to the lower surface of the upper punch. It can be used effectively. -The tablet manufacturing method according to claim 8 is characterized in that, in the tablet manufacturing method according to claim 6 or claim 7, the airflow from the bottom to the top is formed on the lower surface of the upper punch which is not paired with the lower punch. This is generated by driving a suction means having a suction port at a position above the lower surface of the upper punch, and excess powder material is suctioned and removed by the suction means.

 In this tablet manufacturing method, an airflow from below to above can be generated on the lower surface of the upper punch with a simple configuration in which a suction means having a suction port is provided above the lower surface of the upper punch. .

Also, for the upper punch, extra powdery material (for example, The powder material that drifts is immediately sucked and removed from the suction port, so that the powder material does not scatter and adhere to other device parts.

 The method for producing a tablet according to claim 9 is the method for producing a tablet according to any one of claims 6 to 8, wherein the powder material applied to the upper surface of the lower punch and the inner peripheral wall is Excessive powder material for the upper surface of the punch and the inner peripheral wall of the mortar, and the location where the powder material dispersed in the air pulsating wave air flow is directly sprayed on the upper surface of the lower punch inserted into the mortar to the specified position. Was removed by suction in places where conduction did not occur.

 In this tablet manufacturing method, in the powder material applied to the upper surface of the lower punch and the inner peripheral wall surface, extra powder material for the upper surface of the lower punch and the inner peripheral wall surface is specified in a prescribed manner. The location where the powder material dispersed in the air pulsating wave is directly blown onto the upper surface of the lower punch inserted up to the position is a place where it does not conduct, and it is suctioned and removed. The powder applied to the upper surface of the lower punch and the inner peripheral wall without affecting the conditions for directly blowing the powder material dispersed in the air pulsating air stream onto the upper surface of the lower punch inserted up to the position Excess powder material in the body material, on the upper surface of the lower punch and on the inner peripheral wall can be removed by suction.

 In addition, of the powder material applied to the upper surface of the lower punch and the inner peripheral wall surface, excess powder material for the upper surface of the lower punch and the inner peripheral wall surface adheres to the surface of the rotating table. Powder materials are also included.

 The method for producing a tablet according to claim 10 is the method for producing a tablet according to any one of claims 6 to 9, wherein the predetermined position on the upper surface of the lower punch is the upper surface of the lower punch. Is the lowest position.

 In this tablet manufacturing method, a powder material is applied to the upper surface of the lower punch and the inner peripheral wall surface at a position where the lower punch is at the lowest position in the lower punch. In addition, since the powder material is applied evenly to the inner peripheral wall of the mill that comes into contact with the molding material, the molding material does not adhere to the mill.

 Claims 11 to 16 define the configuration of the applicator for the powder material for the upper punch.

That is, the powder material application device for an upper punch according to claim 11 includes a plurality of upper punches and a plurality of lower punches, and at a molding material filling point, the lower punch reaches a predetermined position. Within the inserted statement, the molding material was filled in order, and then reached the compression point. In addition, the molding material filled in the box is compression-molded by a pair of mortar, upper punch and lower punch, and synchronized with a plurality of rows provided on a rotary table of a continuous tableting machine that manufactures tablets. The powder material is applied to the lower surface of a plurality of upper punches. The powder material application device for the upper punch is provided below the lower surface of the upper punches. The powder for the lower punch, which is provided at the front part of the molding material filling point and which applies the powder material to the inner peripheral wall surface and the upper surface of the lower punch where the lower punch as a set is inserted to a predetermined position. It is provided at a position different from the body material application point, and is provided so as to be curved along the rotation path of the plurality of upper punches. The upper punch receiving groove and the bottom of the upper punch receiving groove The lower surface of the plurality of upper punch to move the upper punch accommodation groove, and a slit part for spraying the powder material dispersed in airflow pulsating vibration air.

 In the powder material applying device for the upper punch, a long slit is provided on the lower surface of the upper punch for spraying the powder material dispersed in the air current of the air pulsating wave. Since the powder material is sprayed on the lower surface of the upper punch over time while the punch passes, the powder material is less likely to adhere to the lower surface of the upper punch due to gravity. Since the powder material is attached to the lower surface of the upper punch, the powder material can be evenly applied.

 An apparatus for applying a powder material for an upper punch according to claim 12 is an apparatus for applying a powder material for an upper punch according to claim 11, wherein a first suction unit is provided above the slit portion. Further, the first suction means has a suction port large enough to cover the area of the slit portion, and the suction port is provided on the outer peripheral side of the rotation track of the plurality of upper punches when viewed in a plan view. When the first suction means is driven, an airflow from the slit to the suction port is generated above the slit due to the shape of the suction port, and the air is evenly distributed in the slit. The powder material dispersed in the container is supplied.

In the powder material coating device for the upper punch, the upper part of the slit is large enough to cover the area of the slit, and when viewed in a plan view, a plurality of the above-mentioned rotary table is provided on the rotary table. A first suction means having a suction port shaped along the outer peripheral side of the rotating orbit is provided. As a result, when the first suction means is driven, an airflow is generated uniformly above the entire region of the slit portion and directed upward from below. Therefore, pickpocket The powder material blown out from the slot moves from the lower part to the upper part of the entire slit area in the suction port direction.

 As a result, the upper punch, which moves in the upper punch receiving groove, is provided on the lower surface of the upper punch provided in accordance with the following statement, while the upper punch moves from the start to the end of the long slit. In addition, the powder material coming from above and below from all over will continue to collide with the lower surface in a substantially vertical direction.

 In this way, the powder material, which hardly adheres due to gravity due to gravity, takes a long time and blows out from the entire area of the slit to the lower part of the upper punch from above to below. Since the material is attached, the powder material can be evenly applied to the lower surface of the upper punch.

 In addition, since the powder material mixed with air is made to flow in the direction opposite to the rotation direction of the turntable, the powder material mixed with air is made to flow in the forward direction with the rotation direction of the turntable. The powder material can be made to efficiently collide with the lower surface of the upper punch as compared with the configuration described above. -In this way, the powder material applying device for the upper punch can efficiently and uniformly apply the powder material to the lower surface of the upper punch.

 For this reason, if the powder material applying device for the upper punch is used, the lower surface is uniformly coated with the powder material, and the upper surface is uniformly coated with the powder material. Tablets can be manufactured using the lower punch that has been applied and the mortar that has been applied with powder material evenly on the inner peripheral wall, so if a lubricant is used as the powder, Thus, continuous tableting can be performed without causing any stickiness in the punch and die, and without causing tableting troubles (laminating, caving, staking, etc.). This allows the production of external lubricating tablets at the production pace.

 Also, when a surface modifier is used as the powder material, the surface modifier can be uniformly applied to the punches, and if the powder material application device for the upper punch is used, the surface Since a tablet can be manufactured using a punch with the modifying agent uniformly applied, it is possible to manufacture a tablet in which the surface modifier is uniformly applied to the surface of the tablet.

An apparatus for applying a powder material for an upper punch according to claim 13, wherein the width of a slit portion of the apparatus for applying a powder material for an upper punch according to claim 11 or 12 is a tablet. Form The width is approximately equal to the width of the area of the score line or the mark.

 In general, laminating, caving, sticking, sticking, and the like are likely to occur in a portion of a tablet provided with a score line or an engraving, that is, a portion having complicated irregularities. In addition, when applying a surface modifier to tablets, it is difficult to apply the surface modifier to the part of the tablet where the score line or marking is provided, that is, the part where complicated irregularities are formed. . In this powder material applicator for the upper punch, the width of the slit is made to substantially match the width of the area of the score line or the mark formed on the tablet. The powder material is applied to the lower surface of the upper punch, centering on the part of the lower surface of the upper punch, which forms the score lines and markings, that is, the part where the complex protrusions are formed.

 As described above, in the powder material applying device for the upper punch, the powder material can be sufficiently and uniformly applied to a portion of the lower surface of the upper punch where a score line or an engraving is formed. In the case where a lubricant is used, it is possible to avoid laminating, caving, and statusing in the part of the tablet where the score line or marking is provided, that is, the part where the complex unevenness is formed. Tablets can be manufactured.

 Therefore, if this device is used, it will be possible to manufacture external lubricating tablets provided with score lines and stamps at a production pace, which was conventionally difficult to manufacture on a production basis.

 Also, if the powder material applying device for the upper punch is used, it is difficult to apply the powder material using the conventional powder material applying device. The powder material can be applied sufficiently and evenly to the part that forms the powder, and if a surface modifier is used as the powder material, it has conventionally been difficult to manufacture the powder material. In addition, it becomes possible to manufacture a tablet uniformly coated with a surface modifying agent even at a portion where a score line or a mark is provided.

 The apparatus for applying a powder material for an upper punch according to claim 14 is a shape of a slit portion of the apparatus for applying a powder material for an upper punch according to any one of claims 11 to 13. Are zigzag shaped.

This allows the upper punch to move in the upper punch receiving groove. The upper punch moves in the upper punch receiving groove as compared to a slit whose slit part is simply curved along the rotation path of the multiple upper punches. The lower slit of the upper punch, because it has passed through the longer slit The powder material is sufficiently and uniformly applied.

 As a result, when a lubricant is used as a powder material, laminating, caving, and statusing are performed on the tablet at the part where the score line or marking is provided, that is, at the part where complicated unevenness is formed. Tablets can be produced without further occurrence of Therefore, if this device is used, an external lubricating tablet provided with a score line and a stamp can be manufactured with higher production efficiency.

 In addition, if the powder material applying device for the upper punch is used, the powder can be sufficiently and uniformly applied to a portion of the lower surface of the upper punch where a score line or a mark is formed. If a surface modifier is used as the powder material, tablets with the surface modifier applied uniformly at the part where the score line or marking is provided can be manufactured with even higher production efficiency. Will be able to

 An apparatus for applying a powder material for an upper punch according to claim 15 is provided above the slit portion of the apparatus for applying a powder material for an upper punch according to any one of claims 11 to 14. Further, a mesh means having a predetermined hole diameter was provided.

 If powder materials with different particle sizes (for example, large powder particles) adhere to the lower surface of the upper punch, tableting becomes difficult due to this, and the surface of the manufactured tablets becomes Since it becomes impossible to apply the powder material uniformly, it is necessary to apply the powder material having a uniform particle size to the lower surface of the upper punch as uniformly as possible.

 In the powder material application device for the upper punch, a mesh means having a predetermined hole diameter is provided above the slit portion, and a powder having a predetermined particle size or more is catched by the mesh means. Large powder material is prevented from adhering to the lower surface of the upper punch.

 As a result, a powder material having a uniform particle size can be uniformly applied to the lower surface of the upper punch.

 Therefore, by using the powder material applicator for the upper punch, it is possible to easily produce a tablet on which the powder material is uniformly applied on the surface without making the tableting difficult. Further, since the air flow flowing from the slit portion to the suction port of the first suction means is rectified by the mesh means, the powder material is more uniformly applied to the lower surface of the upper punch.

An apparatus for applying a powder material for an upper punch according to claim 16 is any of claims 11 to 15 In the powder coating device for the upper punch described in the crab, instead of the slit, move in the upper punch receiving groove along the rotation path of the multiple upper punches on the bottom surface of the upper punch receiving groove On the lower surface of the plurality of upper punches, a plurality of injection holes for spraying the powder material dispersed in the air current of the air pulsating wave were arranged.

 In the powder material application device for the upper punch, instead of the slit portion, a plurality of upper punches that move in the upper punch receiving groove along the rotation path of the upper punches on the bottom surface of the upper punch receiving groove. A plurality of injection holes for spraying the powder material dispersed in the air current of the air pulsating wave are arranged on the lower surface of the nozzle, so that when the powder material is sprayed from each of the plurality of injection holes, However, a certain rectifying effect can be obtained.

 As a result, the powder material hardly adheres due to the gravity, and the powder material is uniformly applied to the lower surface of the upper punch.

 Claims 17 to 22 define the configuration of the powder material application device for the lower punch.

 In addition, the term "application device for powder material for lower punch" used in the present specification means that not only the upper surface of the lower punch but also the lower punch is inserted to a predetermined position. It means a device that applies powder material to the upper inner peripheral wall.

That is, the powder material applying apparatus for a lower punch according to claim 17 includes a plurality of upper punches and a plurality of lower stands, and at a molding material filling point, the lower punch reaches a predetermined position. The molding material is sequentially filled into the inserted mortar, and then, at the compression point, the molding material filled therein is compression-molded by a pair of mortar, upper punch and lower punch, In a continuous tableting machine that manufactures tablets, a plurality of plates are fixedly mounted on a rotating table provided in the circumferential direction, and rotate in synchronization with a plurality of plates provided on a rotating table. A powder material application device for a lower punch, which applies a powder material to the upper surfaces of a plurality of lower punches provided in the same manner, which is provided at a front stage of a molding material filling point and forms a set. A different position from the powder material application point for the upper punch, which applies the powder material to the lower surface of the upper punch The mortar with the lower punch inserted to the predetermined position, which is provided and rotated, is sequentially accommodated, and the upper surface of the lower punch inserted to the predetermined position is divided into air pulsating waves. An outlet for spraying the scattered powder material was provided on the surface facing the rotary table. In the powder material application device for the lower punch, the powder material dispersed in the air current of the air pulsating wave is sprayed from the outlet onto the upper surface of the lower punch inserted into a predetermined position inside the lower punch. Due to the amplitude of the air pulsation wave, even if extra powder material accumulates on the upper surface of the lower punch due to gravity, due to the air pulsation wave, such extra powder material becomes As a result of being blown off from the upper surface of the lower punch, the powder material can be uniformly applied to the upper surface of the lower punch where excess powder material tends to accumulate due to gravity.

 The powder material blown off from the upper surface of the lower punch adheres to the inner peripheral wall surface of the mortar, so that the powder material can be uniformly applied to the inner peripheral wall surface of the mortar.

 The powder material applying device for a lower punch according to claim 18 is configured such that the outlet of the powder material applying device for the lower punch according to claim 17 is located directly below the outlet. The lower punch is inserted into the inside of the lower punch at a predetermined position, and is provided at a substantially central portion of the upper surface so as to face a substantially vertical direction.

 In this powder material application device for lower punches, the air pulsation wave is mixed with the upper surface of the lower punch inserted to a predetermined position from the outlet of the through hole provided to penetrate the main body. The sprayed powder material is directly sprayed. As a result, excess powder that easily adheres or accumulates on the upper surface of the lower punch is blown off from the upper surface of the lower punch by an air pulsating wave, so that the powder material is formed on the upper surface of the lower punch. Uniformly applied. Similarly, the powder material adhering extra to the inner peripheral wall is also blown off by the air pulsating wave, so the powder material is uniformly applied to the inner peripheral wall.

 An apparatus for applying a powder material for a lower punch according to claim 19 is a device for applying a powder material for a lower punch according to claim 17 or claim 18, which has a surface facing a rotary table. In the latter part of the discharge outlet, the powder is further housed in a powder material application device for the lower punch, and is sprayed from the discharge port onto the lower punch and the die, and the powder that is excessively attached to the lower punch and the die. Second suction means was provided for removing the material and excess powder material on the rotating table.

 In the powder material applying device for the lower punch, a second suction means is provided to remove the excess powder material adhering to the lower punch and the die and the excess powder material on the rotary table. I have to.

Therefore, for example, if a molding material filling portion is provided at a position downstream of the second suction means, in the step of filling the molding material into the space formed by the lower punch and the die, the lower punch and the extra The adhering powder material and excess powder material on the rotating table can be prevented from being mixed into the molding material. As a result, an external lubricating tablet that does not contain a lubricant therein can be produced more efficiently.

 In addition, it is possible to manufacture surface-modified tablets in which no surface modifier is mixed inside the tablets.

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 The powder material applying device for lower punches according to claim 20 is the powder material applying device for lower punches according to claim 19, wherein the second suction means is provided on a rotary table. It has a slit-shaped suction port that is long enough to force each of the plurality of objects and their surroundings so as to be substantially orthogonal to the plurality of said orbits.

 In this powder material application device for lower punches, the suction port of the second suction means is provided with a length capable of covering each of the plurality of parts and the periphery thereof so as to be orthogonal to the plurality of rotation paths. Because of the formation, it is possible to efficiently remove the powder material adhering to the lower punch and the surface and the excess powder material on the rotary table by driving the second suction means. it can.

 This makes it possible to efficiently produce an external lubricating tablet that does not further contain a lubricant.

 In addition, it is possible to manufacture surface-modified tablets that are not contaminated at all by the surface modifier inside the tablet.

 The powder material application device for lower punches according to claim 21 is the powder material application device for lower punches according to claim 20, wherein the suction port of the second suction means is at least: The plurality of dies, which are provided on the rotary table, are located farther from the diameter of each of the plurality of dies provided from the position where the discharge port is provided.

In the powder material applying device for the lower punch, the powder material applied to the upper surface of the lower punch and the inner peripheral wall surface of the lower punch is excess in the powder material applied to the upper surface of the lower punch and the inner peripheral wall surface of the die. The point where the powder material dispersed in the air current of the air pulsation wave is directly blown onto the upper surface of the lower punch inserted to a predetermined position in the inside is said to be sucked and removed in a place where it does not conduct. The upper surface of the lower punch and the inner wall of the lower punch are not affected by the condition that the powder material dispersed in the air current of the air pulsation wave is directly blown onto the upper surface of the lower punch inserted to the predetermined position in the mortar. Excess powder material on the upper surface of the lower punch and on the inner peripheral wall of the applied powder material can be removed by suction. In addition, of the powder material applied to the upper surface of the lower punch and the inner peripheral wall, excess powder material for the upper surface of the lower punch and the inner peripheral wall adheres to the surface of the rotary table. Powder materials are also included. A rotary table of the powder material applying apparatus for a lower punch according to any one of claims 17 to 21. Provided in order to sequentially remove the molding material attached to the upper surface of the plurality of lower punches, the inside of the plurality of arms and the periphery of the plurality of arms, at the front part of the discharge port on the surface facing the A third suction means having a slit-shaped molding material suction port having a width substantially equal to or slightly larger than a diameter of each of the plurality of dies so as to be substantially orthogonal to the plurality of rotation orbits is provided. Provided.

 In the powder material application device for the lower punch, a third suction means having a molding material suction port is provided at a front stage of the discharge port for discharging the lubricant, and before spraying the lubricant, The inner peripheral wall surface and the upper surface of the lower punch are cleaned to prevent the molding material and lubricant used in the previous process from being mixed into the tablet in the next process. However, there is no unevenness in the amount of lubricant used between tablets. This enables continuous production of tablets of the same specification.

 Claims 23 to 34 define the configuration of a powder material application device in which a powder material application device for the lower punch and an application device for the powder material for the upper punch are combined.

In other words, the powder material application device according to claim 23 is a powder compression device that is provided in a continuous tableting machine at a predetermined position on a rotary table provided in a circumferential direction. A body material application device, which is connected to a powder material application device for the lower punch and a powder material application device for the lower punch at a position opposite to the rotation direction of the rotary table. A powder material application device for the punch and a powder material application device for the lower punch and a powder material application device for the upper punch, respectively, so that the rotary table can slide. The surface on the side facing the rotary table is made a smooth surface, and the coating device for the powder material for the lower punch is equipped with an outer surface, such as a lubricant mixed with air pulsation waves. A powder material inlet for feeding the powder material is provided, and the powder material fed into the powder material inlet is Through the through holes provided to penetrate the coating apparatus of the powder material for punch, sent to the surface on the side facing the rotation Te one table, facing the rotary table of the through hole The powder discharged together with air from the discharge port on the front side of the surface of the die is contained in the powder material coating device for the lower punch, the inner peripheral surface of the mortar, and to a specified depth. It is designed to be sprayed on the upper surface of the inserted lower punch, and the powder material application device for the upper punch penetrates the powder material application device for the upper punch from the surface opposite to the rotary table Thus, it includes a long slit portion curved so as to follow the rotation trajectory of the plurality of upper punches, and a slit portion region provided on the outer surface side of the powder material application device for the upper punch. And a punch accommodation groove provided for accommodating a plurality of upper punches rotating and moving, and is provided so as to be curved along the rotation path of the plurality of upper punches. The width of the receiving groove should be equal to or slightly larger than the outer diameter of each of the upper punches. The lower surface of the upper punch housed in the upper punch receiving groove is easily exposed to the powder supplied from the slit, while the lower surface of the upper punch is stored in the upper punch receiving groove. The powder material is hardly attached to the side circumference of the punch, and the through hole of the powder material for the lower punch is formed through a discharge port on the surface side facing the rotary table. The powder material sprayed on the inner peripheral surface of the lower punch and the upper surface of the lower punch inserted to the specified depth, which is contained in the powder material application device for the lower punch together with the air Is further supplied to a slit provided in a powder material application device for the upper punch.

 In this powder material application device, the air pulsation wave is applied to the upper surface of the lower punch inserted into the mortar to a predetermined position from the outlet of the through hole provided in the powder material application device for the lower punch. The mixed powder material is directly sprayed. As a result, excess powder, which easily adheres or accumulates on the upper surface of the lower punch, is blown off from the upper surface of the lower punch by an air pulsating wave. Similarly, the air pulsating wave also blows off excess powder material on the inner peripheral wall, so that the powder material is evenly distributed on the inner peripheral wall of the mortar. Applied.

Further, in this powder material applying device, the powder material applying device for the upper punch is connected to the powder material applying device for the lower punch in a direction opposite to the rotation direction of the rotary table, and the powder for the lower punch is connected. The inner peripheral surface of the mortar, which is housed in a powder material application device for the lower punch, together with air, from the discharge port on the surface side of the through hole of the body material facing the rotary table, and The powder material sprayed on the upper surface of the lower punch inserted into the mortar to the predetermined depth further The powder material is supplied to a slit provided in a coating device.

 Therefore, the excess powder material blown off from the upper surface of the lower punch and / or the inner peripheral wall surface by the air pulsating wave is mixed with the air, and in a state opposite to the rotating direction of the rotating table. (Upstream side) and released from the slit.

 In the powder material coating device, the powder material coating device for the upper punch contains a plurality of upper punches that rotate and move so as to include a long slit region. Because the upper punch receiving groove is provided, the upper punch that moves in the upper punch receiving groove, on the lower surface of the upper punch While moving from the start to the end, the powder material coming from above and below from all over will continue to collide with the lower surface in a substantially vertical direction.

 In this way, the powder material adheres to the lower surface of the upper punch, which is hard to adhere due to gravity, with time, so that the powder material adheres to the lower surface of the upper punch. The body material can be applied uniformly.

 In addition, the configuration is such that the powder mixed with air flows in the direction opposite to the direction of rotation of the rotary table, so that the powder mixed with air flows in the direction of rotation of the rotary table in the forward direction. The powder material can be made to efficiently collide with the lower surface of the upper punch 0 as compared with the above-described configuration.

 As a result, the powder material applying apparatus can efficiently and uniformly apply the powder material to the lower surface of the upper punch.

 If this powder material application device is used, an upper punch with the powder material uniformly applied to the lower surface thereof, and a lower punch with the powder material uniformly applied to the upper surface thereof, Tablets can be manufactured using the fact that the powder material is uniformly applied to the inner peripheral wall surface.

 As a result, when a lubricant is used as a powder material, no squeak and no tableting trouble (laminating, caving, sticking, etc.) occur on the punching day. Continuous tableting becomes possible. This makes it possible to manufacture external lubricating tablets on a production basis.

In addition, if a surface modifier is used as the powder material by using this powder material coating device, Kizuki says that the surface modifier can be applied uniformly, so that it can be displayed on the tablet surface. A tablet to which the surface modifier is uniformly applied can be manufactured with high production efficiency. In the powder material applying apparatus according to claim 24, the powder material applying apparatus according to claim 23 is arranged such that the powder material applying apparatus according to claim 23 is located above the slit portion of the powder material applying apparatus for the upper punch. Further comprising a suction means, wherein the first suction means has a suction port large enough to cover an area of the slit portion.

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In addition, when viewed in a plan view, the suction port has a shape along the outer peripheral side of the rotation trajectory of the plurality of upper punches. When the first suction means is driven, the slit is formed by the shape of the suction port. An air current is generated from the slit to the suction port above the slit, and the powder material dispersed in the air is supplied to the slit uniformly.

 The powder material application device for an upper punch according to claim 8, wherein the powder material application device includes an upper punch material application device that constitutes the powder material application device. Since the first suction means having the same configuration as that of the coating device is provided, the same effect as that of the powder material coating device for the upper punch described in claim 8 can be obtained.

 The powder material application device according to claim 25 is the width of the slit portion of the powder material application device for the upper punch of the powder material application device according to claim 23 or 24. However, the width of the area of the score and the area of the stamp formed on the tablet are made to substantially match.

 The powder material application device for an upper punch according to claim 13, wherein the width of the slit portion of the powder material application device for the upper punch constituting the powder material application device is set in the powder material application device. Similar to the applicator of the first aspect, the width of the area of the dividing line or the mark formed on the tablet is made to substantially coincide with the width of the area. I do.

 The powder material applying device according to claim 26 is the powder material applying device for an upper punch of the powder material applying device for an upper punch according to any one of claims 23 to 25. The shape of the slit part of the device is zigzag.

 15. The powder material applying device for an upper punch according to claim 14, wherein the shape of the slit portion of the powder material applying device for the upper punch constituting the powder material applying device is the same as that of the powder material applying device. Since it has a zigzag shape as in the case of the application device of the first aspect, the same effect as that of the powder material application device for an upper punch according to claim 14 is achieved.

The powder material applying device according to claim 27 is the powder material applying device for an upper punch of the powder material applying device for an upper punch according to any one of claims 23 to 26. Mesh means having a predetermined hole diameter was provided above the slit portion of the apparatus. 16. The powder material for an upper punch according to claim 15, wherein the powder material application device is provided above a slit portion of the powder material application device for an upper punch constituting the powder material application device. Similar to the coating device of the above, a mesh means having a predetermined hole diameter is provided.

The same effects as those of the powder material application device for upper punches described in 15 are achieved.

 A powder material applying device according to claim 28 is a discharge port of a powder material applying device for a lower punch of the powder material applying device according to any one of claims 23 to 27. Is provided at a substantially central portion of the upper surface of the lower punch, which is inserted to a predetermined position in a position located immediately below the discharge port, so as to face a substantially vertical direction.

 The powder material application device for a lower punch according to claim 18, wherein an outlet of the powder material application device for a lower punch constituting the powder material application device is provided. Similar to the outlet of the device, the lower punch is inserted to a predetermined position in a position located immediately below the outlet, and is provided substantially in the center of the upper surface of the lower punch so as to be directed substantially vertically. The same effect as that of the powder material application device for lower punches described in 8 can be obtained.

 A powder material applying device according to claim 29 is a rotary member of a powder material applying device for a lower punch, wherein the powder material applying device according to any one of claims 23 to 28 is a rotating device. On the rotating direction side of the table, through the outlet of the through hole, the lower punch and the powder material that are sprayed onto the lower punch and die, which are housed in the main body, A second suction means for removing excess powder material is further provided.

 In the powder material coating apparatus, the lower punch material powder coating apparatus constituting the powder material coating apparatus is similar to the lower punch powder material coating apparatus according to claim 19. Since the second suction means having the above configuration is further provided, the same effect as that of the powder material applying apparatus for lower punches according to claim 19 can be obtained.

 The apparatus for applying a powder material according to claim 30 is the apparatus for applying a powder material according to claim 29, wherein the second suction means is provided on a rotary table. It has a slit-shaped suction port long enough to cover each of the plurality of dies and the periphery thereof so as to be orthogonal to.

The lower punch according to claim 20, wherein the powder material application device includes a suction port of a second suction unit provided in the powder material application device for the lower punch constituting the powder material application device. 20. The lower punch according to claim 20, which has a configuration similar to that of the powder material application device for The same effect as that of the powder material coating device for use can be obtained.

 In the powder material coating apparatus according to claim 31, the suction port of the second suction means of the powder material coating apparatus according to claim 30 is provided with at least the discharge port. A plurality of said diameters provided on the rotary table from a position at which the rotary table is located.

 In this powder material application device, the powder material applied to the upper surface of the lower punch and the inner peripheral wall surface of the die, of the powder material applied to the upper surface of the lower punch and the inner peripheral wall surface, is put into the die. The place where the powder material dispersed in the air current of the air pulsation wave is directly blown onto the upper surface of the lower punch inserted to the predetermined position is a place where it does not conduct, and it is suctioned and removed. The powder applied to the upper surface of the lower punch and the inner wall of the lower punch without affecting the conditions for directly blowing the powder material dispersed in the air current of the air pulsating wave onto the upper surface of the lower punch inserted up to the position Excess powder material in the upper surface of the lower punch and the inner peripheral wall of the die can be removed by suction.

 The powder material coating apparatus according to claim 32 is the powder material coating apparatus for lower punches according to any one of claims 23 to 31. The molding material adhering to the front surface of the discharge port on the surface facing the rotating tape of the coating device, and further to the upper surface of the lower punches, the inner walls and the outer periphery, is sequentially removed. And a third suction means provided with a molding material suction port that is substantially orthogonal to the rotation orbits of the plurality of dies.

 In this powder material coating apparatus, the powder material coating apparatus for lower punches constituting the powder material coating apparatus is the same as the powder material coating apparatus for lower punches according to claim 22. Since the third suction means is provided, the same effect as the powder material application device for lower punches according to claim 22 can be obtained.

 The powder material application device according to claim 33 is a slit portion of the powder material application device for an upper punch of the powder material application device according to any one of claims 23 to 32. Instead, on the bottom surface of the upper punch receiving groove, on the lower surface of multiple upper punches moving in the upper punch receiving groove along the rotation path of the multiple upper punches, the powder dispersed in the air current of the air pulsating wave A plurality of injection holes for spraying the material were arranged.

In this powder material coating device, the slit portion of the powder material coating device for the upper punch is replaced. Instead, on the bottom surface of the upper punch receiving groove, the powder material dispersed in the air current of the air pulsating wave is Because of the arrangement of multiple spray holes, the powder material is sprayed from each of the multiple spray holes.

In the process, a certain rectifying effect is obtained in the airflow.

 As a result, the powder material hardly adheres due to the gravity, and the powder material is uniformly applied to the lower surface of the upper punch.

 The powder material applying apparatus according to claim 34 is a rotary apparatus for the powder material applying apparatus for lower punches of the powder material applying apparatus according to any one of claims 23 to 33. An application unit for the powder material for the upper punch is connected at a position in the forward direction, not in the direction opposite to the rotation direction of the table.

 In this powder coating device, the powder material coating device for the lower punch, which constitutes the powder material coating device, is provided with the powder material for the upper punch at a position in the rotation direction and the forward direction of the rotary table. Since the coating device is connected, the rotating direction of the rotary table and the powder material for the lower punch are supplied from the powder coating device for the upper punch to the powder material coating device for the upper punch. Since the flow direction is the same, the powder material can be applied to the lower surface of the upper punch with low resistance and in a quiet state (under a negative pressure atmosphere).

 Claim 35 specifies an external lubricating tablet press.

 That is, in the external lubricating tablet press according to claim 35, the rotary table can be rotated at a predetermined position on a rotary table provided with a plurality of days in a circumferential direction of the continuous tablet press. As described above, the powder material application device according to any one of claims 11 to 34 is fixedly attached.

 In this external lubricating tablet press, for example, the powder according to any one of claims 11 to 34 is provided at a predetermined position (lubricant spray point) of a conventional tablet press such as a rotary tablet press. In the simple work of fixedly attaching the body material application device, if a lubricant is used as the powder material, the punch does not produce a squeak and a tableting failure.

(Tableting, laminating, cabbing, sticking, etc.) without the need for continuous tableting, making it possible to manufacture external lubricating tablets at a production pace. Can be provided to the market.

When a surface modifier is used as the powder, the surface modifier is The tablet can be manufactured using this external lubricating tableting machine using a punch and a surface to which the surface modifier has been evenly applied, so that the surface modifier can be applied to the surface of the tablet. To provide tablets with an external lubricated punching machine capable of producing tablets with uniform coating.

 ,-And can be. BRIEF DESCRIPTION OF THE FIGURES

 FIG. 1 is an overall configuration diagram schematically showing an example of an external lubricating tableting machine according to the present invention.

 Fig. 2 shows the rotary table of the open-type tableting machine that constitutes the external lubricating tableting machine shown in Fig. 1, the coating device for the powder material for the upper punch, and the powder material for the lower punch. FIG. 3 is a plan view schematically showing an arrangement of a coating device.

 FIG. 3 is a schematic developed view in which the rotary table shown in FIG. 2 is cut and developed between a molding material filling point and a lubricant applying point.

 FIG. 4 is a diagram schematically showing a powder material application device for the upper punch, and FIG. 4 (a) is a powder material application device for the upper punch. Fig. 4 (b) is a schematic cross-sectional view taken along the line IV-IV in Fig. 4 (a), which is provided in the vicinity of the powder material application device for the upper punch. The suction duct is shown together.

 FIG. 5 is a perspective view schematically showing the shape of the suction duct centered on the suction port.

 FIG. 6 is a diagram schematically illustrating a powder material application device for a lower punch. FIG. 6 (a) is a perspective view taken along line II-II in FIG. FIG. 6 (b) is a schematic cross-sectional view taken along the line VI-VI in FIG. 6 (a), and FIG. 6 (c) is a state in which a certain time has elapsed from the state shown in FIG. 6 (b). It is sectional drawing which shows schematically.

 FIG. 7 is a cross-sectional view schematically showing a VII portion in FIG. 1 in a further enlarged manner.

 FIG. 8 is a plan view schematically showing an elastic film body.

Fig. 9 is a plan view schematically showing the position of the air pulsation wave introduction port provided in the dispersion chamber when the dispersion chamber is viewed in plan.Fig. 9 (a) shows the ideal installation of the air pulsation wave introduction port. FIG. 9B is a view for explaining the position, and FIG. 9B is a view for explaining a practically possible mounting position of the air pulsation wave introduction port 55a. Fig. 10 is a diagram schematically illustrating the positional relationship between the air pulsation wave introduction port and the discharge outlet provided in the dispersion chamber when the dispersion chamber is viewed in a plan view, and Fig. 10 (a) shows the air pulsation wave conduction. FIG. 10 is a view for explaining a substantially possible positional relationship between an inlet and an outlet, and FIG.

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 (b) is a diagram illustrating a preferred positional relationship between the air pulsation wave inlet and the outlet. FIG. 11 is an explanatory diagram schematically illustrating a phenomenon that occurs in the elastic film when an air pulsation wave is sent into the dispersion chamber.

 FIG. 12 is a cross-sectional view schematically showing an air pulsation wave generator suitable for the present invention. FIG. 13 is a plan view schematically showing another example of a powder material applying device for a lower punch according to the present invention.

 FIG. 14 is an overall configuration diagram schematically showing another example of the external lubricating tableting machine according to the present invention.

 Fig. 15 shows the rotary table of the rotary tableting machine that constitutes the external lubricating tablet press shown in Fig. 14, a powder material coating device for the upper punch and a powder material coating device for the lower punch. FIG. 4 is a plan view schematically showing the arrangement of the components.

 FIG. 16 is a schematic developed view in which the rotary table shown in FIG. 15 is cut and developed between a molding material filling point and a lubricant application point.

 FIG. 17 is an overall configuration diagram schematically showing an example of an external lubricating tableting machine provided with the powder material application device according to the present invention.

 FIG. 18 is a plan view schematically showing an arrangement of a rotary table and a powder material coating device of the rotary tableting machine constituting the external lubricating tableting machine shown in FIG.

 FIG. 19 is a schematic developed view in which the rotary table shown in FIG. 17 is cut and developed between the molding material filling point and the lubricant application point.

 FIG. 20 is a plan view schematically showing an apparatus for applying the powder material.

 FIG. 21 is a schematic sectional view taken along the line XXI—XXI in FIG.

 FIG. 22 is a schematic sectional view taken along the line XXII-XXII in FIG. FIG. 23 is a plan view schematically showing another example of the powder material coating apparatus according to the present invention.

FIG. 24 is a plan view schematically showing another example of the powder material coating apparatus according to the present invention. FIG. 25 is a plan view schematically showing another example of the powder material coating apparatus according to the present invention.

 FIG. 26 is a schematic sectional view taken along the line XXVI-XXVI in FIG.

 Fig. 27 is a plan view schematically showing another example of the powder material coating apparatus according to the present invention.

 FIG. 28 is a schematic cross-sectional view along the line XXVIII—XXVIII in FIG.

 FIG. 29 is a plan view schematically showing another example of the powder material coating apparatus according to the present invention.

 FIG. 30 is a schematic sectional view taken along line XXX-XXX in FIG.

 FIG. 31 is a line graph showing the correlation between the spray amount and the elapsed time of the powder material discharging device used in the external lubricating tableting machine according to the present invention.

 FIG. 32 shows that in the powder material discharging device used in the external lubricating tablet press according to the present invention, the amount of the powder material stored in the powder material storage chamber affects the spray amount. 4 is a line graph showing a correlation between a spray amount and an elapsed time.

 FIG. 33 is a plan view schematically showing another example of the powder material coating apparatus according to the present invention.

 FIG. 34 is a process chart schematically showing a method for producing a tablet using a conventional external lubricating tableting machine described in Japanese Patent Publication No. 56-14098.

 Fig. 35 schematically shows a main part of a conventional external lubricating tableting machine described in Japanese Patent Application Laid-Open No. 7-124234 and already proposed by the present inventors. It is a block diagram.

 FIG. 36 is a diagram schematically showing an air pulsation wave, and FIG. 36 (a) shows an air pulsation wave in which a mountain has a positive pressure and a valley has an atmospheric pressure, and FIG. Each of the peaks and the valleys exemplifies a positive pressure air pulsation wave. BEST MODE FOR CARRYING OUT THE INVENTION

 Hereinafter, the present invention will be described in more detail with reference to the drawings.

In the following description, the case where a lubricant powder is used as the powder material will be mainly described. (Embodiment 1)

 In the first embodiment of the present invention, a powder material application device for an upper punch and a powder material application device for a lower punch are separately provided, and these are provided on a rotary table of a tableting machine. An example provided at another position will be described.

 FIG. 1 is an overall configuration diagram schematically showing an example of an external lubricating tableting machine according to the present invention.

 The external lubricating tableting machine 1 is composed of a rotary tableting machine 2, a powder material coating device 3 for an upper punch, a powder material coating device 4 for a lower punch, and a powder material for an upper punch. A powder material discharge device (quantitative feeder) 5 that supplies the powder material to each of the body material coating device 3 and the powder material coating device 4 for the lower punch, and an air source 7 such as a blower And an air pulsation wave generator 8 that converts compressed air generated by driving the air source 7 into a positive pressure air pulsation wave.

 In FIG. 1, a member device denoted by reference numeral 10 denotes a computing device for controlling the entire operating environment of the external lubricating tableting machine 1. A member device denoted by reference numeral 11 denotes a first device such as a blower. This shows the suction means.

 The member indicated by T1 is a pipe connecting the air source 7 and the air pulsation wave generator 8, and the member indicated by Τ2 is an air pulsation wave generator 8 and a powder material discharge device (quantitative filter). The pipes that connect to 5) and the members indicated by Τ3 are the powder material discharge device (quantitative feeder) 5, the powder material application device 3 for the upper punch, and the powder for the lower punch. Pipes connecting each of the material coating devices 4 are shown. In addition, the member indicated by reference numeral 4 indicates a suction duct connected to the first suction means 11.

 A flow control device 12 is connected in the middle of the pipe T1 so that the flow control device 12 can adjust the flow rate of the compressed air generated by driving the air source 7.

 In addition, the pipe Τ3 is led out from the powder material discharge device (quantitative feeder) 5 as one pipe, and branches along the way into two pipes T3a and T3b to form a pipe T3. a is connected to the powder material coating device 3 for the upper punch, and the pipe T 3 is connected to the powder material coating device 4 for the lower punch.

Each of the two pipes T 3a and T 3b has a flow control valve v 1 such as a solenoid valve, v 2 is provided for each.

 In the middle of the suction duct T4, a flow control valve V3 such as a solenoid valve is provided.

 Further, members indicated by C1 indicate signal lines for exchanging signals between the arithmetic unit 10 and each of the flow control device 12 and the air pulsation wave generator 8, and the flow control device 12 Each of the air pulsation wave generator 8 and the air pulsation wave generator 8 operates based on the control signal of the arithmetic unit 10.

 C 2 indicates a signal line for exchanging signals between the arithmetic unit 10 and the flow control valve vl. The flow control valve vl opens and closes based on the control signal of the arithmetic unit 10. The amount can be controlled to a predetermined opening / closing amount.

 C 3 indicates a signal line for exchanging signals between the arithmetic unit 10 and the flow control valve vl, and the flow control valve V 2 controls the flow of the signal based on the control signal of the arithmetic unit 10. The opening / closing amount can be controlled to a predetermined opening / closing amount.

 Similarly, C 4 indicates a signal line for exchanging signals between the arithmetic unit 10 and the flow control valve V 3, and the flow control valve v 3 is based on a control signal of the arithmetic unit 10, The opening / closing amount can be controlled to a predetermined opening / closing amount.

 Next, the configuration of the external lubricating tableting machine 1, the one-shot tableting machine 2, the powder material application device 3 for the upper punch and the powder material application device 4 for the lower punch Will be described in more detail.

 Fig. 2 shows the rotary table 21 of the lip-type tableting machine 2 that constitutes the external lubricating tableting machine 1, the applicator 3 for the powder material for the upper punch, and the powder material for the lower punch. FIG. 3 is a plan view schematically showing an arrangement of a coating device 4, and FIG. 3 shows a rotary table 21 shown in FIG. 2 between a molding material filling point P 2 and a lubricant applying point P 1. A schematic development view cut and expanded is shown.

 The one-shot tablet press 2 is provided with a plurality of rotary tables 21 provided in the circumferential direction and rotatably provided, and a rotary table 21 that rotates in synchronization with the rotation of the rotary table 21. , And a plurality of lower punches 24 that are rotated in synchronization with the rotation of the turntable 21.

In this external lubricating tablet press 1, as shown in FIGS. 2 and 3, The lubricant spray point P1 is divided into two parts, a lubricant spray point P1a for the upper punch and a lubricant spray point P1 for the lower punch.

 Then, a powder material application device 3 for the upper punch is installed at the lubricant spraying point P 1 a for the upper punch, and a lubricant spraying point P lb for the lower punch is used for the lower punch. It is characterized in that a powder material coating device 4 is installed.

 At the lubricant spray point P lb for the lower punch, the upper surface S 24 of the lower punch 24 is located at the lowest position in the mill 22.

 That is, at the position where the upper surface S 24 of the lower punch 24 is the lowest position in the mortar 22, the upper surface S 24 of the lower punch 24 and the inner peripheral wall surface of the lower die 22 (the inner peripheral wall surface of the mortar 22) The inner surface of the upper surface of the lower punch 24 above the inner surface of the lower punch 24) The powder material is applied to S22, and when the molding material is compression-molded, the die 2 that comes into contact with the molding material is pressed. Since the powder material is applied evenly to the inner peripheral wall S22 of No.2, the molding material does not adhere to the mortar 22 when manufacturing the tablet. The same applies to the second embodiment of the invention described below.

 In this example, the powder material applying device 3 for the upper punch includes a connection plate 3 Op. The connection plate 3 Op is provided for facilitating the piping of the powder material for the upper punch to the coating device 3, and is provided so as to protrude outward from the turntable 21. On its upper surface, connection ports e8 and e9 described later are provided. Further, the powder material applying device 4 for the lower punch includes a connection plate 4 Op. The connection plate 40 p is provided for facilitating the piping of the powder material for the lower punch to the applicator 4, and is provided so as to protrude outward from the rotary table 21. On the upper surface, a powder material introduction port e1 and a discharge port e5 described later are provided.o

 First, the configuration of the powder material application device 3 for the upper punch will be described.

FIG. 4 is a view schematically showing a powder material application device 3 for the upper punch, and FIG. 4 (a) is a powder material application device 3 for the upper punch. Fig. 4 (b) is a schematic cross-sectional view taken along the line IV-IV in Fig. 4 (a). The suction duct T4 provided at the bottom is also shown. As shown in Fig. 4 (a), the powder material application device 3 for the upper punch uses a plurality of upper punches 2 3... It is located below the orbit (Or).

 The powder material application device 3 for the upper punch is provided so as to be in contact with the rotary table 21 as long as it is provided below the rotation path Or of the plurality of upper punches 2 3. 3 may be provided above the turntable 21 as shown in FIG. In addition, when viewed in a plan view, the powder material application device 3 for the upper punch is provided at a front stage of the molding material filling point P2 as shown in FIG.

 More specifically, the powder material application device 3 for the upper punch is composed of an inner peripheral wall S 22 of the die 22 into which a pair of lower punches 24 are inserted to a predetermined position and an upper surface of the lower punch 24. Application point of powder material for lower punch to apply lubricant powder to S 2 4 A position different from P 1 b, that is, in this example, tablet discharge point P 5 and lubricant for lower punch It is provided between the spray point P 1 b.

 On the upper surface of the powder material application device 3 for the upper punch, a plurality of upper punches 2 3 are provided so as to be curved along the rotation trajectory Or of the upper punches 2 3. The upper punches are sequentially accommodated, and are provided on the bottom surface of the long upper punch receiving groove 31 and the upper punch receiving groove 31 along the rotation path Or of the plurality of upper punches 23. The lubricant powder L dispersed in the pulsating air current is sprayed on the lower surface S2 3 of the upper punches 2 3 moving inside the upper punch receiving groove 3 1 And a slit portion 32 to be formed.

 The upper punch receiving groove 31 is provided so as to be curved along the rotation path Or of the plurality of upper punches 23.

 The width W 3 1 of the upper punch grooving groove 3 1 is set to be equal to or slightly larger than the outer diameter of each of the plurality of upper punches 2 3. The lower surface S 23 of the upper punch 23 accommodated in the upper punch 23 is easily exposed to the lubricant powder L supplied from the slit portion 32, while being accommodated in the upper punch receiving groove 31. The lubricant powder L is hardly attached to the periphery of the upper punch 23.

 In FIG. 4 (a), reference numeral 33 denotes a lubricant powder supply hole for supplying the lubricant powder L dispersed in the air current of the air pulsating wave to the slit portion 32.

The lubricant powder supply hole 33 is located on the connection plate 3 Op shown in FIG. It is connected to the connection port e8 provided on the surface.

 In this example, a suction port T4a of a suction duct T4 of the first suction means 9 is further provided above the slit portion 32, as shown in FIGS. It has been done.

 FIG. 5 is a perspective view schematically showing the shape of the suction port T4a of the suction duct T4 centered on the suction port T4a.

 The suction port T4a has a size to cover the area of the slit portion 32, and has a shape along the outer peripheral side of the rotation trajectory Or of the plurality of upper punches 23 in plan view. You are.

 In this example, a large space is formed inside the suction port T4a, and a suction duct T connected to the first suction means (the first suction means 11 shown in FIG. 1) is formed in the deep space. It has a structure in which a pipe T5 connected to 4 is provided.

 In FIG. 5, e indicates a connection port of the pipe T5. In this example, the connection port e 9 is connected to the first suction means (the first suction means 11 shown in FIG. 1). It is provided on the upper surface of the connection plate 30p for easy connection.

 Then, the first suction means 11 and the connection port e9 are connected by a pipe.

 With the above configuration, when the first suction means 11 is driven, an airflow from the slit 32 to the suction port T4a is generated above the slit 32 due to the shape of the suction port T4a. Upward, an airflow can be uniformly generated from the slit portion 32 toward the suction port T4a.

 That is, when the first suction means 11 is driven, the upper punch 23 moves in the upper punch receiving groove 31, and each of the upper punches 23 is placed on the lower surface S23 of the upper punch 23. While sequentially moving from the starting end es of the slit portion 32 to the end portion ee, the lubricant powder L which is sprayed from the slit portion 32 and is mixed with and dispersed in the airflow of the positive pressure air pulsating wave is dispersed. Riding on the airflow from the slit portion 32 toward the suction port T4a, collides upward in a substantially vertical direction from below and continues to adhere.

The application time of the powder material to the lower surface S23 of each of the upper punches 23 is determined by the application time of the powder material to the upper surface S24 of the lower punch 24 and the inner peripheral wall surface 22 of the lower punch 22. When the time is set to “1”, the powder material on the upper surface S 24 of the lower punch 24 and the inner peripheral wall S 22 of the mill 22 is The coating time is preferably 1 to 50 times, more preferably 5 to 40 times the coating time.

 Note that this relationship is the same when a plurality of spray holes h s ···· are arranged instead of the slits 3 2. as in the device 4B shown in FIG.

 Then, the excess lubricant powder L is sucked into the suction port T4a.

 In this way, when the powder coating device 3 for the upper punch is used, the lubricant powder L hardly adheres due to the gravity and the lower surface S of each of the upper punches 2 3. 2 3 ··································································································································································· • Further, in this example, the width W32 of the slit portion 32 is made to substantially match the width of the area of the score line or the mark formed on the tablet t.

 Thus, if the powder material applying device 3 for the upper punch is used, the lower surface S 23 of each of the upper punches 23, a portion forming a score line or a mark on the tablet t, That is, since the lubricant powder L can be applied evenly to the portion where the complex unevenness is formed, the lower surface S 2 3 of the upper punch 2 3 Tablets can be manufactured without causing tableting obstacles such as laminating, caving, and sticking in the portions where such complex irregularities are formed.

 Further, in the powder material coating device 3 for the upper punch, a concave portion (shown by a broken line in FIG. 2 as viewed in a plan view) is formed on the back surface of the coating device 3 (the surface facing the surface of the rotating table 21). In this case, a generally right-angled triangular recess 3c) is provided. And, as shown in FIG. 5, the conduit T5 is branched into two branch pipes T5a and T5b, one branch pipe T5a is connected to the suction port T4a side, and The branch pipe T5b is connected to the recess (represented by a broken triangle 3c in a right-angled triangle when viewed in a plan view as indicated by a broken line in FIG. 2).

With this configuration, when the first suction means (not shown) connected to the connection port e1 is driven, the suction port T4a, as described above, goes into the suction port T4a. At the same time as the air flow of the suction atmosphere can be generated, it is formed on the surface of the rotary table 21, for example, in a recess (shown by a broken line in FIG. 2, when viewed in a plan view, a generally triangular recess 3c). Even if a material or a powder material (in this example, a lubricant powder) is attached, a molding material or a powder material (in this example, a lubricant) is attached to the surface of the rotating table 21. Powder) Etc. can be removed.

 This keeps the surface of the turntable 21 clean at all times, and is contaminated with unnecessary molding material and powder material (in this example, lubricant powder).

,-No, tablets can be manufactured.

 Note that FIG. 5 is merely an example, and the suction port T4a and the recess (shown by a broken line in FIG. 2, when viewed in a plan view, are generally right-triangular-shaped recesses 3c) are the connection ports. By driving the first suction means 11 connected to the e 9, the suction port T 4 a is connected to the air flow of the suction atmosphere flowing into the suction port T 4 a, and the recess (shown by a broken line in FIG. 2). , When viewed in a plan view, a generally triangular-shaped recess 3 c) is drawn into the recess (shown by a broken line in FIG. 2, when viewed in a plan view, generally into a right-triangular shaped recess 3 c). It is not necessary to simultaneously generate the airflow of the atmosphere, and the connection port e 9 is connected to a recess (represented by a broken line in FIG. 2, which is generally a right triangle-shaped recess 3 c when viewed in a plan view), When the suction means (not shown) connected to the connection port e9 is driven, the recess (shown by a broken line in FIG. In the right triangle-shaped recess 3c), a suction atmosphere (shown by a broken line in Fig. 2, when viewed in a plan view) can be generated in the suction atmosphere toward the generally right triangle-shaped recess 3c). When the first suction means 11 is connected to a connection port (not shown) connected to the suction port T4a, and the first suction means 11 is driven, suction is performed on the suction port T4a. Needless to say, it may be possible to generate an airflow of a suction atmosphere toward the mouth T4a.

 Next, the configuration of the powder material applying device 4 for the lower punch will be described.

 FIG. 6 is a diagram schematically illustrating a powder material application device 4 for a lower punch, and FIG. 6 (a) is a perspective view taken along the line II-II in FIG. (b) is a schematic cross-sectional view taken along the line VI-VI in FIG. 6 (a), and FIG. 6 (c) is a state after a certain time has elapsed from the state shown in FIG. 6 (b). It is sectional drawing which shows schematically.

 The powder material application device 4 for the lower punch is fixed on the rotary table 21 so that the rotary table 21 can slide on the rotary table 21 as shown in FIGS. 6 (a) to 6 (c). It is located in

The surface S 4 a of the coating device 4 on the side facing the rotary table 21 is made a smooth surface so that the rotary table 21 can slide. It is preferable that the surface S 4 a of the coating device 4 on the side facing the rotary table 21 is in contact with or close to the surface of the rotary table 21.

 The surface S 4 a of the coating device 4 on the side facing the rotary table 21 is, when approaching the surface of the rotary table 21, a surface S 4 a on the side facing the rotary table 21. The smaller the gap with the surface of the turntable 21, the better.

 More specifically, the gap between the surface S4a of the coating device 4 on the side facing the rotary table 21 and the surface of the rotary table 21 is preferably 100 / m or less. It is more preferably 5 O ^ m or less, particularly preferably 30 m or less. As described above, when the gap between the surface S4a of the coating device 4 on the side facing the rotary table 21 and the surface of the rotary table 21 is reduced, the powder material passes through the gap. However, the phenomenon of scattering can be prevented.

 It should be noted that providing the surface S4a of the coating device 4 on the side facing the rotary table 21 so as to approach the surface of the rotary table 21 is not limited to the coating device 4 for a lower punch described later. The same is true for A, 4B, and 4D.

 Further, on the upper surface S 4 b of the coating device 4, a powder material inlet e 1 for feeding the lubricant powder L mixed with the air pulsating wave is provided.

 The pipe T 3 b is connected to the powder material inlet e 1.

 The lubricant powder L sent from the powder material inlet e 1 passes through the through hole h 1 provided to penetrate the device 4, and the surface S 4 a on the side facing the rotary table 2. Is sent to the discharge port e2 provided in the

 Slip is sent to the surface S 4 a on the side facing the rotary table 21 and is discharged with air from the outlet e 2 on the side S 4 a of the through hole hi on the side facing the rotary table 21. The powder powder L is accommodated below the device 4, the inner peripheral wall S 22 of 22, and the upper surface S 2 of the lower punch 24 inserted into the mortar 22 to a predetermined depth. 4 is designed to be sprayed in a substantially vertical direction at the center (see Fig. 6 (b)).

Further, this device 4 is sprayed from a discharge hole e2 of a through hole h1 to a lower punch 24 and a box 22 which are housed below the device 4, and a lower punch 24 and a mill 22 A second suction means such as a blower (not shown) for removing the lubricant powder L that is attached to the rotary table and the excess lubricant powder L on the turntable 21; ) Is connected I have.

 In FIG. 6, e5 'indicates a connection port to which the second suction means (not shown) is connected.

 As shown in FIG. 6 (a), the suction port h5 of the second suction means (not shown) has a plurality of rotating orbits (see FIG. 6 (a), a slit-like shape that is substantially perpendicular to the rotation orbit O r) indicated by the dashed line, and that is long enough to cover each of the plurality of dies 2 2 have.

 As a result, as shown in FIG. 6 (c), the upper surface S24 of the lower punch 24 and the lower peripheral punch 24 are inserted to a predetermined position from the discharge port e2. Sprayed onto S22, upper surface S24 of lower punch 24 and lower punch 24 inserted to predetermined position 22 Inner peripheral wall S22 Extra lubricant Even if the powder L adheres or accumulates, if the second suction means (not shown) is driven, the second suction means (not shown) can be moved downward from the suction port h5 of the second suction means (not shown). The lubricant powder L, which is extraly attached and deposited, is added to the inner peripheral wall S22 of the upper surface S24 of the punch 24 and the lower peripheral surface S22 where the lower punch 24 is inserted to a predetermined position. Since it can be removed, excess lubricant powder L adheres to the upper surface S 24 of the lower punch 24 and the inner peripheral wall S 22 of the lower punch 24 into which the lower punch 24 has been inserted to a predetermined position. Without depositing on these surfaces, lubricant powder And summer so that L can be uniformly applied. Further, even if the lubricant powder L adheres and accumulates around the rotary table 21, the second suction means (not shown) drives the suction port h 5. Thus, the lubricant powder L can be removed.

 As a result, in the subsequent step of filling the molding material, the lubricant powder L excessively adhering to the lower punch 24 and the statement 22 and the excess lubricant powder L on the rotary table 21 are removed. However, since it can be prevented from being mixed into the molding material M, even if the tablet t is continuously tableted, a tablet having the same amount of the lubricant powder L between the tablets t It can be manufactured.

 Further, an external lubricating tablet which does not contain the lubricant powder L therein can be efficiently produced.

Further, in the powder material application device 4 for the lower punch, as shown in FIG. The distance L (e 2-h 5) between the outlet e 2 and the suction port h 5 is set to be longer than at least the diameter D 22 of 22.

 That is, in the powder material coating device 4 for the lower punch, the second suction means (not shown) is used.

The suction port h5 of,-is separated from at least the position of the discharge port e2 by a diameter D22 of each of a plurality of 22. (L (e2-h5)> D22).

 Accordingly, in the powder material applying device 4 for the lower punch, the powder material applied to the upper surface S 24 of the lower punch 24 and the inner peripheral wall S 22 of the die 22 (in this example, In the powder L), excess powder material (in this example, the lubricant powder L) is added to the upper surface S24 of the lower punch 24 and the inner peripheral wall S22 of the lower punch 24. The place where the powder material dispersed in the air current of the air pulsation wave is directly blown onto the upper surface S 24 of the lower punch 24 inserted to a predetermined position in the inside 2 (that is, the discharge port e 2) is a mill 2 2 , The air pulsation wave was dispersed on the upper surface S 24 of the lower punch 24 inserted into the mortar 22 to the position where it was run. The powder material applied to the upper surface S 24 of the lower punch 24 and the inner peripheral wall S 22 of the lower punch 24 without affecting the conditions for directly spraying the powder material (in this example, the lubricant Powder L), (In this example, wax powder L) punch 2 4 of the upper surface S 2 4 and 曰 2 2 of the inner circumferential wall surface S 2 extra powder material Te convex to 2, can be sucked and removed.

 Next, the configuration of the powder # ^ material discharge device (quantitative feeder) 5 will be described.

 FIG. 7 is a sectional view schematically showing a VII portion in FIG. 1 in a further enlarged manner.

 The powder material discharge device 5 includes a powder material storage chamber 53 connected via a powder material cut-out valve 52 below the hopper 51, and a powder material storage chamber 53 below the powder material storage chamber 53. An elastic membrane 54 provided and a b dispersion chamber 55 connected below the powder material storage chamber 53 via the elastic membrane 54 are provided.

 FIG. 8 is a plan view schematically showing the elastic membrane 54.

 As shown in FIG. 8, the elastic membrane 54 has a hole (slit) 54a at the center thereof.

The powder material storage chamber 53 is made of glass or a resin such as an acrylic resin, and has optical transparency. As shown in FIG. 7, the powder material storage chamber 53 is provided with a level sensor 56 for detecting the amount of the lubricant powder L stored in the powder material storage chamber 53. ing. The level sensor 56 includes a light emitting element 56 a that emits light such as infrared light, and an optical element 56 b that receives light emitted from the light emitting element 56 a.

 The light emitting element 56 a and the light receiving element 56 b are arranged to face each other with the powder material storage chamber 53 interposed therebetween.

 Then, at the position where the level sensor 56 is provided (the height from the elastic film 54 to the position where the level sensor 56 is provided) H th, the lubricant powder L stored in the powder material storage chamber 53 The amount can be detected.

 That is, the amount of the lubricant powder L stored in the powder storage chamber 53 is the position where the level sensor 156 is provided (the height of the position where the level sensor 156 is provided from the elastic membrane 54) H When th exceeds th, the light emitted from the light emitting element 56a hits the lubricant powder L and cannot be received by the light receiving element 56b (turns off). At this time, the powder material is stored. It can be detected that the height H of the lubricant powder L in the chamber 53 from the elastic membrane 54 exceeds the height Hth (H> Hth).

 Further, the amount of the lubricant powder L stored in the powder material storage chamber 53 is determined by the position where the level sensor 56 is provided (the height of the position where the level sensor 56 is provided from the elastic membrane 54) H th When the value is less than 5, the light emitted from the light emitting element 56a can be received by the light receiving element 56b (turned on). At this time, the lubricant powder L in the powder material storage chamber 53 is used. Height H from the elastic membrane 54 is less than the height H th

(H <Hth).

 The powder material extraction means (powder material extraction valve) 52 moves up and down according to the detection value of the level sensor 56 to close or open the discharge port 51 a of the hopper 51. It is now possible to use it.

More specifically, in this device 5, when the detection value of the level sensor 56 is turned off, the powder material cutting means 52 is moved upward, and the discharge port 5 la of the hopper 51 is closed, When the detection value of the level sensor 5 6 is turned on, the powder material cutting means 52 is moved downward to open the discharge port 51 a of the hopper 51, and the powder material storage chamber 5 is opened. Third, an approximately constant amount of lubricant powder L is always stored. Further, in this example, the shape of the dispersion chamber 55 is substantially cylindrical so that a swirling flow is easily generated in the dispersion chamber 55.

 Here, although an example is shown in which the shape of the dispersion chamber 55 is substantially cylindrical, the shape of the dispersion chamber 55 is not particularly limited as long as a swirling flow can be generated in the dispersion chamber 55.

 The dispersion chamber 55 is provided with an air pulsation wave introduction port 55a for sending an air pulsation wave in a position substantially below the dispersion chamber 55 in a direction substantially tangential to the inner peripheral surface of the dispersion chamber 55. At the position above the dispersion chamber 55, in a direction substantially tangential to the inner peripheral surface of the dispersion chamber 55, an outlet 55b for discharging the powder material mixed, dispersed, and fluidized into the air from the dispersion chamber 55. Is provided.

 Here, the position of the air pulsation wave introduction port 55a provided in the dispersion chamber 55 will be described in more detail with reference to FIG.

 FIG. 9 is a plan view schematically showing the position of the air pulsation wave introduction port 55a provided in the dispersion chamber 55 when the dispersion chamber 55 is viewed in a plan view. FIG. 9 (a) shows the air pulsation wave introduction port 55. FIG. 9B is a diagram illustrating an ideal mounting position of a, and FIG. 9B is a diagram illustrating a substantially possible mounting position of the air pulsation wave introduction port 55a.

 In each of FIGS. 9 (a) and 9 (b), the curved arrows indicate the direction of the air pulsating wave swirling flow generated in the dispersion chamber 55.

 In order to generate a swirling flow in the dispersion chamber 55, the air pulsation wave introduction port 55a is preferably provided in the tangential direction of the dispersion chamber 55 as shown in FIG. 9 (a).

 However, the air pulsation wave introduction port 55a does not need to be strictly provided in the tangential direction of the dispersion chamber 55 as shown in FIG. 9 (a), and one dominant swirling flow flows in the dispersion chamber 55. As far as possible, as shown in FIG. 9 (b), air flows in a direction equivalent to the tangent Lt direction of the dispersion chamber 55 shown in FIG. 9 (a) (that is, in a direction parallel to the tangent Lt where the dispersion chamber 55 is located). A pulsating wave introduction port 55a may be provided.

When the air pulsation wave inlet 55a is provided in the direction of the center line of the dispersion chamber 55 (see the center line Lc shown by the imaginary line in FIG. 9 (b)) as shown in FIG. 9 (b). However, if the shape of the dispersion chamber 55 is cylindrical, it is not preferable because two swirling flows which cannot be said to be dominant are generated. Next, the positional relationship between the air pulsating wave introduction port 55a and the discharge port 55b provided in the dispersion chamber 55 will be described in more detail with reference to FIG.

 FIG. 10 is a diagram schematically illustrating the positional relationship between the air pulsation wave inlet 55a and the outlet 55b provided in the dispersion chamber 55 when the dispersion chamber 55 is viewed in a plan view, and FIG. FIG. 10 is a view for explaining a substantially possible positional relationship between the air pulsation wave introduction port 55a and the discharge port 55b, and FIG. 10 (b) shows a preferred relationship between the air pulsation wave introduction port 55a and the discharge port 55b. It is a figure explaining a positional relationship.

 In each of FIGS. 10 (a) and 10 (b), the arrow indicated by a curve schematically indicates the direction of the swirling flow of the air pulsation wave generated in the dispersion chamber 55.

 When the outlet 55b is provided in the dispersing chamber 55 at the position shown in Fig. 10 (a), the direction of the swirling flow of the air pulsating wave generated in the dispersing chamber 55 (the traveling direction of air) is reversed. In this case, the discharge port 55b is provided in the direction, and the discharge efficiency of the lubricant powder L dispersed in the air and fluidized at the discharge port 55b cannot be said to be good.

 In consideration of the discharge efficiency of the lubricant powder L dispersed and dispersed in the air at the discharge port 55b, the discharge port 55b1 or the discharge port 55b2 is exemplified in FIG. 10 (b). As shown in the above, the discharge port 55b is provided in the forward direction with the direction of the swirling flow of the air pulsation wave generated in the dispersion chamber 55 (the traveling direction of the air). preferable.

 In this example, an air pulsation wave generator 7 is connected to the air pulsation wave introduction port 55a of the dispersion chamber 55 via a pipe T2.

 The outlet 55b is connected to the powder material inlet 33 of the powder material applying device 3 for the upper punch and the powder material inlet 33 of the powder material applying device 4 for the lower punch via the pipe T3. Connected to 1.

In FIG. 7, a member device indicated by 57 is imaging means such as a CCD camera provided to confirm the operation of the powder material cutting means 52, and a member device indicated by 58 is light such as a laser beam. , And receives the scattered light scattered by the lubricant powder (not shown) falling from the outlet 5 la of the hopper 51, so that the lubricant falls from the outlet 51 a of the hopper 51. A sensor for checking the state of the powder (not shown). The member device shown at 59 irradiates light such as a laser beam, The material that falls from the hole (slit) 54 of the porous membrane 54 and is entrained by the swirling air pulsating wave generated in the dispersion chamber 55, and is mixed, dispersed, and fluidized (Not shown), each of which shows a sensor for checking the state of the powder material (not shown) in the ヽ -mixing chamber 55 by receiving the scattered light scattered by the.

 Further, a member device indicated by 60 indicates a repel sensor configured to include a light emitting element 60a and a light receiving element 6Ob. In this example, the level sensor 60 is used to control the hopper 5a. The remaining amount of the powder material in 1 is detected.

 These member devices 57, 58, 59, 60 are provided as necessary.

 Next, the operation of the powder material discharging device 5 will be described.

 First, using this discharge device 5, each of the powder material application device 3 for the upper punch and the powder material application device 4 for the lower punch is mixed with air, dispersed, and fluidized lubricant. Agent powder

To supply L, first, lubricant powder L is stored in hopper 51, and rail sensor 56 is activated.

 In this state, since light such as infrared rays emitted from the light emitting element 56a of the level sensor 56 is received by the light receiving element 56b, the light receiving element 56b is turned on.

 Next, the powder material cutting means 52 is opened, and the lubricant powder L is dropped into the powder material storage chamber 53.

 Lubricant powder L falls and accumulates in the powder material storage chamber 53, and the height H of the lubricant powder L accumulated in the powder material storage chamber 53 from the elastic film 54 increases to the level. When the height exceeds the height H th of the position where the sensor 56 is provided, light such as infrared rays emitted from the light-emitting element 56 a emits lubricant powder L deposited in the powder material storage chamber 53. The light receiving element 56 b is turned off because the light receiving element 56 b cannot receive the light emitted from the light emitting element 56 a. At this time, since the powder material cutting means 52 is automatically closed, the lubricant powder L is stored from the elastic membrane 54 to a height Hth which is approximately equal to a predetermined height ( H2Hth).

Next, the air source 7 is driven, the flow controller 12 is adjusted using the computing unit (controller) 9, and the driving source m of the air pulsation wave generator 8, such as a motor, is moved at a desired speed. As a result, a positive pressure air pulsation wave is generated in the pipe T2.

 In the powder material discharge device 5, air pulsation waves are sent to a position below the dispersion chamber 55 in the tangential direction of the inner peripheral surface of the dispersion chamber 55 or in a direction equivalent thereto. A wave introduction port 55a is provided, and at the position above the dispersing chamber 55, on the inner peripheral surface of the dispersing chamber 55, and in the dispersing chamber 55, the progress of swirling air pulsating waves As shown in Fig. 7, the air pulsation wave sent into the dispersion chamber 55 from the air pulsation wave introduction port 55a has a discharge port 55b in the forward direction. Within 55, an air pulsation wave of a swirling flow (a tornado-like swirl flow) from the air pulsation wave introduction port 55a to the discharge port 55b, going upward from below.

 Since the swirling air pulsation wave generated in the dispersion chamber 55 does not lose the property of the air pulsation wave, the elastic membrane 54 vibrates according to the frequency, amplitude, and waveform of the air pulsation wave.

 FIG. 11 is an explanatory diagram schematically illustrating a phenomenon that occurs in the elastic membrane 54 when an air pulsation wave is sent into the dispersion chamber 55.

 For example, when the air pulsation wave sent into the dispersion chamber 55 becomes a mountain state and the pressure in the dispersion chamber 55 increases, the elastic membrane 54 becomes elastic as shown in FIG. 11 (a). It deforms and curves upward.

 At this time, the upper side of the hole (slit) 54 a is in a V-shaped state in which the upper side is opened, and the slip stored in the powder material storage chamber 53 is in a portion where the slit 73 a is opened. A part of powder powder L falls.

 Next, for example, when the air pulsating wave sent into the dispersion chamber 55 transitions from a peak to a valley and the pressure in the dispersion chamber 55 decreases, it elastically deforms and is elastically curved upward. The body 54 returns to its original state by restoring force.

 At this time, the hole (slit) 54a, whose upper side was opened, also returned to its original state, and thus fell into the part where the upper side of the hole (slit) 54a was opened. A part of the lubricant powder L is sandwiched between the holes (slits) 54a (see FIG. 11 (b)).

Next, for example, when the air pulsating wave sent into the dispersion chamber 55 moves to the valley side and the pressure in the dispersion chamber 55 decreases, as shown in Fig. 11 (c), the original state To The returned elastic membrane 54 elastically deforms and curves downward in response to the decrease in the restoring force and the pressure in the mixing chamber.

 At this time, the lower part of the hole (slit) 54a is in an inverted V-shape, and? The lubricant powder sandwiched between the slits 54 a falls into the dispersion chamber 55. The lubricant powder L that has fallen into the dispersion chamber 55 mixes with the air pulsating wave swirling in the mixing chamber 55, disperses and fluidizes, and flows with air from the discharge port 55b. Is sent out to the pipe T3. .

 In the discharge device 5, since the frequency, amplitude, and waveform of the elastic film 54 are determined and vibrated according to the frequency, amplitude, and waveform of the air pulsation wave, only the frequency, amplitude, and waveform of the air pulsation wave are controlled. Therefore, there is an advantage that a certain amount of powder material can be stably supplied together with air into the pipe T3.

 Furthermore, in this device 5, since the air pulsation wave is made into a swirling flow from the lower side to the upper side in the dispersion chamber 55, particles having a large particle diameter in the powder material dropped into the dispersion chamber 55 Most of the water is caught in this swirling flow, broken down to the desired grain size, and discharged from the outlet 55b.

 In addition, since a swirling flow is generated in the dispersion chamber 55 from the lower side to the upper side, the dispersion chamber 55 has a sizing function similar to a cyclone. As a result, the large particles that are not broken by the swirling flow stay at the lower position in the dispersion chamber 55 until they are crushed to a predetermined particle size. It is not fed into each of the material application device 3 and the powder material application device 4 for the lower punch.

 Therefore, if this device 5 is used, a substantially constant amount of the lubricant powder L can be constantly and continuously discharged, and the lubricant powder L has a uniform particle size, and can be discharged from the discharge port 55b. .

 Also, if this device 5 is used, most of the particles having a large particle size are crushed into a desired size by the swirling air pulsating wave, and are discharged from the discharge port 55b. 5 Large particles are difficult to deposit in 5.

 As a result, the number of operations for cleaning the inside of the dispersion chamber 55 can be reduced.

As described above, since the external lubricating tablet press 1 uses the device 5, it is not necessary to clean the inside of the dispersing chamber 55 during the continuous tableting process. What O

 Therefore, if tablets are manufactured with this external lubricating tableting machine 1, it is not necessary to clean the dispersing chamber 55 while manufacturing the tablets, so that productivity is extremely increased.

 The air pulsation wave introduction port 55a is provided below the dispersion chamber 55, and the discharge port 55b is provided above the distribution chamber 55. The inlet 55a and the outlet 55b do not face each other.

 As a result, the air pulsation wave sent from the air pulsation wave introduction port 55a does not directly enter the discharge port 55b, but always enters the discharge port 55b after turning inside the dispersion chamber 55. Therefore, the air pulsation wave can be effectively used in the dispersion chamber 55.

 In addition, since the discharge port 55b is provided on the inner peripheral surface of the dispersion chamber 55, the lubricant dropped from the hole (slit) 54a of the elastic membrane 54 at the discharge port 55b. There is no phenomenon that the powder L directly enters the discharge port 55b without being mixed with air.

 Furthermore, since most of the lubricant powder L having large particles can be used, there is an effect that the lubricant powder L can be effectively used.

 Further, in this device 5, since the air pulsation wave is made into a swirling flow from the lower side to the upper side in the dispersion chamber 55, the particles having a large particle diameter in the powder dropped into the dispersion chamber 55 are removed. Most are entrained in this swirling flow, crushed to a desired particle size, and discharged from the outlet 55b.

 Further, in the powder material discharge device 5, the powder material storage chamber 53 is provided with a level sensor 56 for detecting the amount of the lubricant powder L stored in the powder material storage chamber 53. The hopper 51 is connected above the powder storage chamber 53 with the powder material cutting means 52 interposed, and if the detection value of the level sensor 56 turns off, the powder material cutting means 5 2 is closed and when the detection value of the level sensor 5 6 is turned on, the powder material cutting means 52 is opened, and an approximately constant amount of the lubricant powder L is always stored in the powder material storage chamber 53. They are being stored.

 Thus, by keeping the air pulsation wave constant, a certain amount of the lubricant powder L can always be discharged from the hole (slit) 54 a of the elastic membrane 54.

In this example, the sensor using the level sensor 56 has been described as a sensor. However, this is merely a preferred example, and the level sensor 56 in the powder material storage chamber 53 is described. As long as the amount of the lubricant powder L can be detected, various sensors such as a weight sensor can be used.

 Next, the configuration of the air pulsation wave generator 8 used in the external lubricating tableting machine 1 will be described.

 In the external lubricating tablet press 1, various devices can be used as the air pulsation wave generator 8.

 As such an air pulsation wave generator 8, a constant pressure compressed air generated by an air source 7 such as a compressor or a blower is opened and closed by an electromagnetic valve to generate an air pulsation wave, or generated by the air source 7. The compressed air at a constant pressure is supplied from the air inlet into a predetermined case, and a rotatable one-way valve is provided in the case to open and close the discharge port provided in the case. Alternatively, it may be generated by rotating a mouth-type valve body.

 However, the pulsating air pulsation generated by such a method can cause the powder to efficiently mix, disperse, and fluidize the air depending on the physical properties of the powder material, and generate air pulsations having a desired ¾¾, amplitude, and period. There is a problem that it is difficult to generate waves.

 In consideration of this, or when an air pulsation wave that is hard to attenuate is required, it is preferable to use an air pulsation wave generator as shown in FIG.

 FIG. 12 is a sectional view schematically showing such an air pulsation wave generator.

 The air pulsation wave generator 8 includes a valve chamber 86 provided with a valve seat 83 between an input port 81 and an output port 82, and a valve body 86 opened and closed by a cam mechanism 85. The cam mechanism 85 includes a rotating cam 87 rotatably provided by a driving means (not shown) such as a motor or the like, and a roller 88 attached to a lower end of the valve body 86.

 The valve seat 83 is formed into a hole with a shape that is tapered in the direction of the output port 82, and the valve element 86 is formed into a tapered inverted mortar shape that matches the shape of the valve seat 83. The valve seat 83 can be airtightly closed.

 Further, in this example, the shaft portion 86a of the valve body 86 is provided in the shaft hole 89h of the case body 89 so as to be free of air and to be vertically movable.

The roller 88 is rotatably sandwiched by the rotating cam 87, and by rotating the rotating cam 87, the roller 88 moves up and down while rotating according to the uneven pattern provided on the rotating cam 87. It works.

 More specifically, the rotating cam 87 includes an inner rotating cam 87a and an outer rotating cam 87b. Each of the inner rotating cam 87a and the outer rotating cam 87b is provided with a concave / convex pattern so as to keep a gap between the apertures 88 and align with each other. The roller 88 is sandwiched between the inner rotating cam 87a and the outer rotating cam 87b, and by rotating the rotating cam 87 without causing splash on the valve body 86, In accordance with the concave / convex pattern provided on the inner rotating cam 87a and the outer rotating cam 87b, it moves up and down while rotating.

 The uneven pattern provided on the rotating cam 87 is selected from different patterns according to the physical properties of the lubricant powder L.

 In this example, a flow control device 12 is connected to the input port 81 via a pipe T1, and the input boat 81 is generated by the air source 7 and specified by the flow control device 12. Compressed air adjusted to the flow rate is supplied.

 Further, one end of a pipe T2 is connected to the output port 82.

 In FIG. 12, reference numeral 90 denotes a flow rate adjustment port provided as necessary.The flow rate adjustment port 90 has an output for adjusting the pressure of the air pulsation wave output from the output port 82. The regulating valve 9'1 is provided so as to be adjusted to a desired state from a state of complete communication with the atmosphere to a state of shutoff.

 Next, an operation procedure for generating a positive pressure air pulsation wave having a desired cycle, amplitude and waveform using the air pulsation wave generation device 8 will be described.

 First, according to the physical properties of the lubricant powder L, the rotating cam 8 7 that can easily mix the lubricant powder L into the air is connected to the rotating shaft ma of the driving means (not shown) of the air pulsation wave generator 8. Attach to

 Next, by driving the air source 7 and adjusting the flow control device 12, a predetermined flow of compressed air is supplied to the input port 42.

 Further, by driving a driving means (not shown), the rotating cam 87 is rotated at a predetermined rotation speed.

If necessary, adjust the output adjustment valve 91 to output from the output port 82. Adjust the pressure of the pulsating air pulsation.

 When the rotary cam 87 is rotated at a predetermined rotation speed, the valve element 86 moves up and down in accordance with the concavo-convex pattern provided on the rotary cam 87. Thus, by controlling the valve seat '8 ′ 3 to be fully closed, half open, fully open, or the like in accordance with, for example, a concavo-convex pattern provided on the rotary cam 87, an air pulsation wave having a desired waveform is output port 82 Output from

 In this air pulsation wave generator 8, in order to set the cycle of the air pulsation wave output from the output port 82 to a desired cycle, the driving means (not shown) is controlled to rotate the rotating cam 87. Just change the speed. In addition, in order to make the amplitude of the air pulsation wave output from the output port 82 to a desired amplitude, the air source 7, the flow control devices 12 and Z, or the output adjustment valve 91 may be adjusted as appropriate.

 Next, a method of continuously tableting the tablet t using the external lubricating tableting machine 1 will be described.

 When the tablet t is continuously tableted, first, the tablet-type tableting machine 2 is driven to rotate the rotary table 21 and a plurality of upper punches 23 and a plurality of lower punches. Rotate the pestle 24 at a specified speed.

 As described above, a plurality of upper punches 23 are sequentially fed into the upper punch receiving groove 31 of the powder material application device 3 for the upper punch.

 In addition, due to the rotation of the rotary table 21, each of a plurality of statements 2 2 ′ and a plurality of statements 2 2 Each of the plurality of lower punches 24,..., Corresponding to each, is sequentially fed.

 In addition, while driving the air source 7, various data are input to the arithmetic unit (controller) 10 to drive the flow control valves vl and v 2, the flow control device 12, and the air pulsation wave generator 8. By adjusting m as appropriate, a positive pressure air pulsation wave is generated in the pipe T2. This “pulsating air pulsation wave” is a wave of air that pulsates at a constant frequency at a pressure higher than the atmospheric pressure outside the pipe T 2, An air wave that pulsates at a constant frequency at a pressure higher than the atmospheric pressure outside the pipe T2 and at a pressure whose vibration valley is approximately equal to the atmospheric pressure outside the pipe T2.

 Further, the first suction means 11 is driven.

Further, the second suction means (not shown) is driven. When the first suction means 11 is driven, an airflow is generated uniformly from above to below from above the entire area of the slit portion 32 of the powder material applying device 3 for the upper punch. Also, when the air pulsation wave generator 8 is driven to generate positive and negative pressure air pulsation waves in the pipe T2, the air pulsation wave generator 8 generates the positive pressure air pulsation wave. Correspondingly, the hole (slit) 54a of the elastic film 54 of the powder material discharge device (quantitative feeder) 5 repeatedly closes and closes and opens and closes.

 When the hole (slit) 54 a of the elastic membrane 54 opens, the lubricant powder L that has fallen into the dispersion chamber 55 becomes a swirling flow in the dispersion chamber 55. It mixes with pressure pulsating air, disperses and fluidizes.

 When the lubricant powder L has a predetermined particle size, the powder for the upper punch is discharged from the discharge outlet 55b provided in the dispersion chamber 55 through the pipe T3 and the pipe T3a. The lubricant powder L sent to the powder inlet 33 of the material application device 3 and sent from the powder inlet 33 is discharged from the slit 32.

 Above the slit portion 32, as described above, a suction port T4a having a shape substantially similar to the shape of the slit portion 32 and having a size that covers the area of the slit portion 32 is provided. Since the first suction means 11 is driven, an airflow is generated uniformly above the entire area of the slit portion 32 and directed upward from below.

 As a result, the lubricant powder L moves from the entire area of the slit portion 32 uniformly from the lower side to the upper side in the suction port T4a direction.

 In addition, in the upper punch receiving groove 3 1, which is located at the upper punch lubricant spraying point P la, and in the upper punch receiving groove 3 1, the upper punch 2 3. , Is passed.

 At this time, on the lower surface S 23 of the upper punch 23 passed through the upper punch receiving groove 3 1, the upper punch 23 moves while moving from the starting end es of the slit portion 32 to the terminal end ee. However, the lubricant powder L coming from above to below from all over will continue to collide with the lower surface in a substantially vertical direction.

 In this way, the lubricant powder L is evenly applied to the lower surface S 23 of the upper punch 23, which is difficult to adhere due to gravity.

Further, the lubricant powder L mixed with and dispersed in the air pulsating wave air stream from the discharge port 55 provided in the dispersion chamber 55 is supplied to the lower punch through the pipe T3 and the pipe T3b. Lubricant jet Lubricant powder L sent to the powder material inlet e1 of the powder material application device 4 for the lower punch installed in the fog point P 1 b and sent from the powder material inlet e1 is After that, it passes through the through-hole h1 and is located below the powder material application device 4 for the lower punch from the outlet e2 of the through-hole h1. It is sprayed at a stretch onto the upper surface S24 of the lower punch 24 inserted to the position.

 At this time, an air flow is generated from the center of the upper surface S 24 of the lower punch 24, which spreads in the direction of the inner peripheral wall S 22 of 22, so that the inner peripheral wall S 22 of the mortar 22 also The lubricant powder L adheres.

 Next, the excess lubricant powder L adhered or deposited on the upper surface S 24 of the lower punch 24 and the inner peripheral wall S 22 of the second punch 22 is supplied to the second suction means ( It is sucked through the suction port h5 (not shown). As a result, the powder material is uniformly applied to the upper surface S 24 of the lower punch 24 and the inner peripheral wall S 22 of the lower punch 22.

 After that, at the molding material filling point P2, the molding material (granules) M is fed from the feedstock 25 into the space 22 into which the lower punch 24 has been inserted to a predetermined position. Next, the scraper '26 is used for grinding, and the amount of the molding material (granules) M filled in the scraper 22 is adjusted to a predetermined amount.

 Next, the scraper 26 is ground and filled with a predetermined amount of the molding material (granules) M. The scrap 22 is sent to the pre-compression point P 3 with the rotation of the rotary table 21, where After being pre-compressed by a pair of upper punches 23 and lower punches 24 by the preload rolls 27, 27, they are sent to the final compression point P4, where they are assembled by the main pressure rolls 28, 28. The upper punch 23 and the lower punch 24 are compressed by a predetermined tableting pressure into tablets t.

 The tablets t produced by compression molding at the compression point P 4 are sequentially sent to the tablet discharge point P 5, where the lower punch 24 moves upward in the die 22 at the tablet discharge point P 5. As a result, it is discharged out of the mortar 22 and is taken out to a predetermined place by the guide plate 29.

After that, the surface 22 of the upper punch 23, the upper punch 23 and the lower punch 24 are sequentially cleaned by suction means (not shown) or the like, and then sent to the lubricant spraying point P1 again. It is prepared for the next tableting process. In the external lubricating tablet press 1, the tablet T is continuously produced by continuously performing the above-described steps.

 In the external split-type tableting machine 1, the inner peripheral wall S2 2 of each of the plurality of dies 2 2 Lubricant powder L can be uniformly applied to each lower surface S 2 3 ··· and lower punch 2 4 ··· 's respective upper surface S 2 4 ··· When locking, the upper punch 2 3 · · · the lower punch 2 4 · · · and 22 · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · without causing squeaks on tableting and preventing tableting (laminating, caving, sticking etc.) ) Continuous tableting becomes possible without producing This makes it possible to produce tablets on a production basis without the need to add the lubricant powder L into the molding material M.

 When a surface modifier is used instead of the lubricant powder L as the powder # ^, the lower surface of each of the upper punch 23 and the lower punch 24 The surface modifier can be uniformly applied to each of the inner peripheral wall surfaces S22 of the respective top surfaces S2 4. Therefore, the use of the external split type tableting machine 1 makes it possible to produce a tablet in which the surface modifier is uniformly applied to the surface of the tablet t.

 Further, as described above, if the width W32 of the slit portion 32 of the powder material application device 3 for the upper punch is made to substantially match the width of the area of the score line or the mark formed on the tablet, The lower surface S 2 3 of each of the upper punches 2 3 moving in the upper punch receiving groove 3 1 forms a parting line or a mark, that is, a complex convex portion is formed. The powder material is sufficiently and uniformly applied to the lower surface S 23 of each of the upper punches 23 around the part where the upper punch is located.

 As a result, when a lubricant is used as the powder material, laminating, cabbing, and sticking occur in the portion of the tablet provided with the score lines or inscriptions, that is, in the portion having complicated irregularities. Tablets can be manufactured without any need. Therefore, if this device 3 is used, an external lubricating tablet provided with a score line or a stamp can be manufactured on a production basis, which has conventionally been difficult to produce on a production basis.

Further, in the above description, an example was described in which the lubricant powder L was used as the powder material. However, in the case where the surface modifier powder was used instead of the lubricant powder L as the powder material. In this case, it becomes possible to manufacture a tablet uniformly coated with a surface-modifying agent even in a part where a score line or a mark is provided, which has been difficult to manufacture conventionally.

 Further, in this external lubricating tableting machine 1, a second suction means (not shown) is provided in the powder material application device 4 for the lower punch, and during the production of the tablet t, the second suction means is provided. The suction means (not shown) is driven, and the lower surface S of each of the lower punches 24.

And powder material adhering extra to the inner peripheral wall S 2 2 of each of 2 4 We try to remove the powder material.

 Therefore, at the position of the molding material filling point P 2 downstream of the suction port h 5 of the second suction means (not shown), the space formed by the lower punch 24 and the die 22 is In the step of sequentially filling the molding material M, the powder material excessively adhering to the lower punch 24 and the die 22 and / or the excess powder material on the rotary table 21 are added to the molding material. It can be prevented from being mixed in.

 This makes it possible to efficiently produce an external lubricating tablet that does not contain a lubricant powder or a surface modifier therein.

 FIG. 13 is a plan view schematically showing another example of a powder material applying device for a lower punch according to the present invention.

 The powder material application device 4A for the lower punch is the same as the powder material application device 4 for the lower punch except for the following configuration. Are given the corresponding reference numerals, and their description is omitted.

 The powder material coating device 4A for the lower punch differs from the powder material coating device 4 for the lower punch in the following points.

 That is, in the powder material application device 4A for the lower punch, a slit-shaped molding material suction port h6 is provided at the front stage of the discharge port e2 on the surface S4a facing the rotary table 21. A third suction means (not shown) having a is further provided.

 The molding material suction port h 6 a of the third suction means (not shown) is provided with a plurality of lower punches 2.

The upper surface of 3 · · · S 2 3 · · ·, a plurality of said 2 2 · · · each inner peripheral wall S 2 2 · · · and a plurality of dies 2 2 · · · formed around the periphery of 2 · · · · It is provided for sequentially removing the material M, and is substantially directly on a plurality of rotation orbits of 22 2. It has a width that is approximately the same as, or slightly larger than, the diameter of each of a plurality of said lines.

 In the powder material application device 4A for the lower punch, a third suction means (not shown) having a molding material suction port h6a is provided at the front stage of the discharge port e2 for discharging the lubricant powder L. ), And before spraying each of the lubricant powders L, the respective inner peripheral wall surfaces S22 and the lower punches 24 of the said 22. Since the top surface S24 is clean, the molding material M and lubricant powder used in the previous process do not mix into the tablets t Even if tablets are manufactured continuously, there is no unevenness in the amount of lubricant powder L used between tablets t As a result, tablets of the same standard can be manufactured continuously.

 In addition, even in the powder material application device 4A for the lower punch, as shown in FIG. 13 (c), the distance L (e2-h5) between the discharge port e2 and the suction port h5 is determined. However, at least the mortar 22 is longer than the diameter D22.

 That is, in the powder material application device 4A for the lower punch as well, the suction port of the second suction means (not shown) is moved at least from the position where the discharge port e2 is provided to the rotary table 21. Provided at a distance from the diameter D22 of each of the plurality of dies 22 (L (e2-h5)> D22).

Therefore, the powder material applying apparatus 4A for the lower punch also applies the powder material applied to the upper surface S24 of the lower punch 24 and the inner peripheral wall S22 of the lower punch 24 (in this example, the lubricant powder L), extra powder material (in this example, lubricant powder L) is placed in the upper surface S24 of the lower punch 24 and the inner peripheral wall S22 of the lower punch 24 in a predetermined position in the die 22. Where the powder material dispersed in the air current of the air pulsating wave is directly blown onto the upper surface S 24 of the lower punch 24 inserted up to (ie, the discharge port e 2) In this case, the condition is such that the powder material dispersed in the air current of the air pulsating wave is directly blown onto the upper surface S 24 of the lower punch 24 inserted into the die 22 to a predetermined position. Of the powder material (in this example, lubricant powder L) applied to the upper surface S 24 of the lower punch 24 and the inner peripheral wall S 22 of the die 22 without giving the upper surface of the lower punch 24. Excess powder material (in this example, lubricant powder L) can be sucked and removed from the inner peripheral wall S22 of S24 and the mortar 22. Further, in the powder material application device 4A for the lower punch, as shown in FIG. 13 (c), the distance L (e2-h6 a) between the discharge port e2 and the suction port h6a is changed. At least, it is longer than the diameter D22 of 22.

 That is, in the powder material application device 4A for the lower punch, the suction port h6a of the third suction means (not shown) is moved at least from the position where the discharge port e2 is provided. The rotating table 21 is provided at a position apart from the diameter D22 of each of a plurality of said 22... (L (e2-h6)> D22).

 Accordingly, in the powder material applying device 4A for the lower punch, the powder material (in this example, lubricant powder L) is applied to the upper surface S24 of the lower punch 24 and the inner peripheral wall S22 of the lower punch 22. Before application, even if it adheres to the upper surface S 24 of the lower punch 24 and the inner peripheral wall S 22 of the lower punch 24, unnecessary molding materials and powder materials (in this example, lubricant powder L) The place where the powder dispersed in the air current of the air pulsating wave is directly blown onto the upper surface S24 of the lower punch 24 inserted to a predetermined position in 22 (that is, the discharge port e2) is a die 22 The powder material dispersed in the air current of the air pulsating wave is placed on the upper surface S 24 of the lower punch 24 inserted to a predetermined position in Without affecting the conditions for directly spraying, the liquid adheres to the surface of the rotary table 21, the upper surface S24 of the lower punch 24, and the inner peripheral wall S22 of the die 22. That (in this example, wax powder L) unwanted molding material and powder material can be sucked and removed. FIG. 14 is a general configuration diagram schematically showing another example of the external lubricating tableting machine according to the present invention. -Fig. 15 shows the rotary table of the one-piece tableting machine that constitutes the external lubricating tableting machine shown in Fig. 14, the powder material application device for the upper punch and the powder material for the lower punch. FIG. 16 is a plan view schematically showing the arrangement of the coating apparatus of FIG. 15, and FIG. 16 is a schematic view in which the rotary table shown in FIG. 15 is cut and developed between a molding material filling point and a lubricant applying point. It shows a schematic development.

 This external lubricating tableting machine 1A is the same as the external lubricating tableting machine 1 shown in FIG. 1 except for the following points, and the corresponding components are denoted by the corresponding reference numerals. The description is omitted.

This external lubricating tablet press 1A differs from the external lubricating tablet press 1 in the following points. You.

 That is, in the external lubricating tableting machine 1A, the powder material application device 4 for the lower punch is not positioned in the reverse direction of the rotary table 21 but in the forward direction of the rotary table 21. In addition, a powder material coating device 3 for the upper punch is provided ("").

 In this way, the powder material applicator 3 for the upper punch is provided at the position opposite to the rotary table 21 in the forward direction with respect to the powder material applicator 4 for the lower punch. Since it may be provided, the external lubricating tablet press according to the present invention has a high degree of freedom in design.

 (Embodiment 2)

 Embodiment 2 of the present invention relates to an example in which a powder material application device is used in which a powder material application device for an upper punch and a powder material application device for a lower punch are integrally provided. explain.

 FIG. 17 is an overall configuration diagram schematically showing an example of an external lubricating tableting machine equipped with such a powder material application device.

 The external lubricating tablet press shown in FIG. 17 is different from the external lubricating tablet press 1 shown in FIG. Since it is the same as that of the lubricating tablet press 1, the corresponding member devices are denoted by the corresponding reference numerals, and description thereof will be omitted.

 FIG. 18 is a plan view schematically showing an arrangement of a rotary table and a powder material coating device of the rotary tableting machine constituting the external lubricating tableting machine shown in FIG.

 FIG. 19 is a schematic developed view in which the rotary table shown in FIG. 17 is cut and developed between a molding material filling point and a lubricant application point.

 FIG. 20 is a plan view schematically showing the powder material coating device 13. FIG. 21 is a schematic sectional view taken along the line XXI—XXI in FIG. 20. FIG. 22 is a schematic sectional view taken along the line XXII—XXII in FIG. FIG. In FIG. 21, one of the two upper punches 23, 23 shown in FIG. 21 is represented by an imaginary line to facilitate understanding of the drawing. Is shown.

The powder material coating device 13 is a powder material coating device 3B for the upper punch similar to the powder material coating device 3 for the upper punch 3 and a powder material coating device 4 for the lower punch 4 A powder material application device 4 B for lower punches similar to that described above is configured as shown in FIG. More specifically, the powder material coating device 13 is fixedly provided at a predetermined position on the turntable 21.

 Then, the powder material application device 4 B for the lower punch, which constitutes the powder material application device 13, is placed in a position opposite to the rotation direction of the rotating table 21, and the powder for the upper punch is used. The material coating device 3B has a structure that is integrally connected.

 The powder material application device 13 includes a connection plate 13p. The connection plate 13 p is provided for facilitating the piping of the powder material to the applicator 13, and has a powder material inlet e 1, described later, on its upper surface. Connection ports e5 and e9 are provided.

 In the powder material application device 4B for the lower punch, the surface S4a facing the rotary table is made a smooth surface so that the rotary table 21 can slide.

 The powder material application device 3B for the upper punch also has a smooth surface S3a facing the rotary table 21 so that the rotary table 21 can slide. .

 The powder material application device 4B for the lower punch has a powder material inlet e1 on its upper surface S4b for feeding the lubricant powder L dispersed in the air current of the air pulsation wave. The lubricant powder L sent to the powder material inlet e 1 passes through the through-hole hi provided so as to penetrate the powder material application device 4 B for the lower punch, and passes through the rotary table 21. It is sent to the surface S 4 a on the opposite side. The lubricant powder L discharged together with the positive pressure air pulsation wave from the outlet e 2 of the surface S 4 a facing the rotary table 21 of the through-hole hi is supplied to the lower punch. The inner peripheral wall S22 of the mortar 22 and the upper surface of the lower punch 24 inserted into the mortar 22 to a predetermined depth, which are accommodated below the powder material application device 4B for the mortar 22 It can be sprayed on 24.

Further, the powder material applying device 3B for the upper punch is formed so as to penetrate the powder material applying device 3 for the upper punch from the surface S3a on the side facing the rotary table 21 and A long slit section 32 curved along the rotation path of the upper punch and the outer surface S 3 b side of the powder applicator 3 B for the upper punch are provided on the side of the slit section 32. And an upper punch accommodation groove 31 provided for accommodating a plurality of upper punches 23 rotating in a rotatable manner. The upper punch receiving groove 31 is provided so as to be curved along the rotation path Or of the plurality of upper punches 23.

 The width W 3 1 of the upper punch receiving groove 3 1 is equal to or slightly larger than the outer diameter of each of the plurality of upper punches 23. The lower surface S 23 of the upper punch 23 accommodated in the upper punch 23 is easily exposed to the lubricant powder L supplied from the slit portion 32, while being accommodated in the upper punch receiving groove 31. The lubricant powder L is hardly attached to the periphery of the upper punch 23.

 The configuration of the powder material coating device 3B for the upper punch and the powder material coating device 4B for the lower punch are as described above. The configuration of the powder material coating device 4 is the same as that of the powder material coating device 4. However, the powder material coating device 13 is a powder material coating device for the lower punch, which constitutes the powder material coating device 13. The lubricant powder L discharged in a state of being mixed with air from the surface S 4 a on the side of the through hole h 1 facing the rotary table 21 on the side of the rotary table 21 is further subjected to an upper punch. Is supplied to a slit portion 32 provided in a powder material coating device 3B.

 More specifically, as shown in FIG. 21, the surface S 4 a of the powder material application device 4 A for the lower punch facing the rotary table 21 is provided with a rotary table 21 1 In the direction opposite to the direction of rotation (see the direction of the arrow shown on the turntable 21 in Fig. 21), a long groove D curved along the rotation path Or of the plurality of dies 2 2 1 is formed.

 The width of the long groove D1 is the same as or slightly larger than the diameter of each of the plurality of said grooves 24.

 In addition, the long groove D 1 has a shape in which the discharge port e 2 of the through hole h 1 is slightly recessed from the surface S 4 a on the side facing the turn table 21 in a direction opposite to the rotation direction of the turn table 21. Have.

 The long groove D1 is connected to a long groove D2 provided below the slit portion 32 of the powder material applying device 3B for the upper punch.

As shown in FIG. 22, the long groove D 2 of the powder material applicator 3 for the upper punch has a surface S 3 on the side of the powder material applicator 3 for the upper punch facing the rotary table 21. It has a slightly concave shape from a. In the powder material application device 13, the long groove D 1 of the powder material application device 4 A for the lower punch is connected to the long groove D 2 of the powder material application device 3 B for the upper punch. Powder material applicator for punches 4 From the egress e2 of the through-hole hi of B, together with air, powder for lower punches ^ "

 ヽ '

The lubricant powder L sprayed on the upper surface S 24 of the lower punch 24 inserted to a predetermined position in the device 22 located below the material application device 4 B passes through the long groove D 1, It moves to the long groove D 2 and is discharged from the slit portion 32.

 In other words, in the powder material coating device 13, the lower punch material coating device 4 B with the air is discharged from the outlet e 2 of the through hole hi of the lower punch powder material coating device 4 B. The lubricant powder L sprayed on the upper surface S 24 of the lower punch 24 inserted to a predetermined depth into the upper surface of the lower punch 24 is stored on the upper surface S 24 of the lower punch 24. Adhere to.

 Then, the lubricant powder L, which is excessively deposited on the upper surface S 24 of the lower punch 24, is sprayed on the inner peripheral wall surface S 22 of 22, and the inner peripheral wall surface S 22 of the mortar 22. Adhere to.

 Next, a method of continuously tableting tablets t using this external lubricating tableting machine 1B will be described.

 When continuously compressing tablets t, first, the one-shot tablet press 2 is driven to rotate the rotary table 21 and a plurality of upper punches 23 and a plurality of lower punches. Rotate the pestle 24 at a specified speed.

 In addition to driving the air source 7, various data are input to the arithmetic unit (controller) 10, and the drive source m of the flow control valves vl and v 2, the flow control device 12, and the air pulsation wave generator 8 is With appropriate adjustment, a positive pressure air pulsation wave is generated in the pipe T2. Further, the first suction means 11 is driven.

 Further, the second suction means (not shown) is driven.

 When the first suction means 11 is driven, the powder material application device 3 for the upper punch, which constitutes the powder material application device 13, is uniformly distributed over the entire area of the slit portion 3 2 of the B 3 B. An airflow is generated that goes upward from below.

When the air pulsation wave generator 8 is driven to generate a positive pressure air pulsation wave in the pipe T2, the air pulsation wave generator 8 responds to the positive pressure air pulsation wave. Then, the hole (slit) 54a of the elastic film 54 of the powder discharger (quantitative feeder) 5 opens and closes. When the hole (slit) 54 a of the elastic membrane 54 opens, the lubricant powder L that has fallen into the dispersion chamber 55 becomes a swirling flow in the dispersion chamber 55. It mixes with pressure pulsating air, disperses and fluidizes.

 When the lubricant powder L has a predetermined particle size, a powder material coating device 13 is formed from a discharge outlet 55 b provided in the dispersion chamber 55 through a pipe T 3. The lubricant powder L sent to the powder material inlet e1 of the powder material application device 4B for the lower punch and sent from the powder material inlet e1 then passes through the through hole hi. It is located below the powder material applicator 4 for the lower punch from the outlet e 2 of the through hole hi. The upper surface S 2 of the lower punch 24 inserted to a predetermined position in the lower punch 22 4, At a stretch, it is sprayed.

 At this time, from the center of the upper surface S24 of the lower punch 24, an airflow is generated that spreads in the direction of the inner peripheral wall S22 of 22. The lubricant powder L adheres.

 Next, the excess lubricant powder L deposited on the upper surface S 24 of the lower punch 24 and the inner peripheral wall surface S 22 of the lower punch 24 drives the first suction means 11. As a result, the space formed by the long grooves D 1 and the long grooves D 2 and the rotary table 21 is supplied to the slit section 32 by the airflow from the discharge port e 2 toward the slit section 32. .

 By driving the first suction means 11 above the slit section 32, the suction port of the first suction means 11 from the slit section 32 is uniformly distributed in the area of the slit section 32. Since the airflow toward T4a is generated, the lubricant powder L mixed with the air discharged from the slit portion 32 moves on the airflow and moves in the direction of the suction port T4a.

^> o

 At this time, on the lower surface S 23 of the upper punch 23 passed through the upper punch receiving groove 3 1, the upper punch 23 moves while moving from the starting end es of the slit portion 32 to the terminal end ee. However, the lubricant powder L coming from above to below from all over will continue to collide with the lower surface in a substantially vertical direction.

 In this way, the lubricant powder L is uniformly applied to the lower surface S23 of the upper punch 23, which hardly adheres due to gravity.

On the other hand, it adheres to the upper surface S 24 of the lower punch 24 and the inner peripheral wall S 22 of The accumulated lubricant powder L is sucked from the suction port h5 of the second suction means (not shown). As a result, the powder material is uniformly applied to the upper surface S24 of the lower punch 24 and the inner peripheral wall S22 of the lower punch 22. ~

 After that, at the molding material filling point P2, the molding material (granules) M is fed from the feedstock 25 into the space 22 into which the lower punch 24 has been inserted to a predetermined position. Next, the scraper 26 is used for grinding, and the amount of the molding material (granules) M filled in the mortar 22 is adjusted to a predetermined amount.

 Then, the mortar 22, which has been abraded by the scraper 26 and filled with a predetermined amount of the molding material (granules) M, is sent to the pre-compression point P 3 with the rotation of the turntable 21, where After being pre-compressed by a pair of upper punches 23 and lower punches 24 by the preload rolls 27, 27, they are sent to the final compression point P4, where they are assembled by the main pressure rolls 28, 28. The upper punch 23 and the lower punch 24 are compressed by a predetermined tableting pressure into tablets t.

 The tablets t produced by compression molding at the compression point P 4 are sequentially sent to the tablet discharge point P 5, where the lower punch 24 moves upwards in the tablet discharge point P 5. As a result, the water is discharged out of 22 and is taken out to a predetermined place by the guide plate 29.

 After that, the surface 22 of the upper punch 23, the upper punch 23 and the lower punch 24 are sequentially cleaned by suction means (not shown) or the like, and then sent to the lubricant spraying point P1 again. It is prepared for the next tableting process.

 In the external lubricating tableting machine 1B, the tablet T is continuously produced by continuously performing the above-described steps.

 In this external split type tableting machine 1B, the inner peripheral wall surface S2 2 ··· of each of the plurality of dies 2 2 ··· ′ of the tableting machine 2 and the lower surface S of each of the upper punches 2 3 ··· 2 3 · · · and lower punch 2 4 · · · 'can evenly apply the lubricant powder L to the upper surface S 2 4 · · · The upper punch 2 3 · · · the lower punch 2 4 · · and the mortar 2 2 · · 'cause no tableting and tableting problems (laminating, caving, statusing, etc.) Without the need for continuous tableting.

As a result, even if the lubricant powder L is not added to the molding material M, Production of tablets is possible on a production basis.

 When a surface modifier is used instead of the lubricant powder L as the powder material, the lower surface S 23 of each of the upper punches 23 and the lower punches 24 The surface modifying agent can be uniformly applied to each of the inner peripheral wall surfaces S22 of each of the upper surfaces S2 4,. Therefore, by using this external splittable tableting machine 1B, it becomes possible to produce a tablet in which the surface modifier is uniformly applied to the surface of the tablet t.

 Further, as described above, if the width W32 of the slit portion 32 of the powder material application device 3B for the upper punch is made to substantially match the width of the area of the score line or the mark formed on the tablet, The upper punches 23, which move in the upper punch receiving groove 31, form a part forming a score line or an engraving of the lower surface S23 of each of the upper punches 23, that is, a complex convex portion is formed. The powder material can be sufficiently and uniformly applied to the lower surface S2 3... Of each of the upper punches 2 3.

 As a result, when the lubricant powder L is used as the powder material, laminating, caving, and states of the tablet are provided at the parts where the score lines and markings are provided, that is, at the parts where complex irregularities are formed. Tablets can be manufactured without kinging.

 Therefore, if this external lubricating tableting machine 1B is used, it is conventionally difficult to produce on an industrial basis, but it is possible to produce an external lubricating tablet with a score line or engraving on a production basis. become able to. In addition, when the surface modifier powder is used as the powder material, the surface modifier is uniformly applied to the part where the score line or the marking is provided, which has been difficult to manufacture conventionally. Tablets can be manufactured. Further, in this external lubricating tableting machine 1B, a second suction means (not shown) is provided in the powder material applying device 4 for the lower punch, and the second pressing means is used during the production of the tablet t. The suction means (not shown in the figure) is driven, and the lower surface S 24 of each of the lower punches 24 and the mortar 22 are driven by the slit portion h5. Excessive powder material adhering to the peripheral wall surface S22 and / or excess powder material on the turntable 21 are removed.

Therefore, the space formed by the lower punch 24 and the die 22 at the position of the molding material filling point P 2 located downstream of the suction port h 5 of the second suction means (not shown). In the step of successively filling the molding material M, the powder material extraly attached to the lower punch 24 and said 22 and / or the excess powder material on the turntable 21 are Mixing into the molding material can be prevented. This makes it possible to efficiently manufacture an external lubricating tablet that does not contain the lubricant powder L or a surface modifier therein.

 Furthermore, in this external lubricating tableting machine 1B, through the long groove D1 and the long groove D2, from the discharge port e2, each of the mortar 2 2 Since the lubricant powder L sprayed on the upper surface S2 4 of each of the lower punches 24 inserted into a predetermined position can be further discharged from the slit portion 32, As is clear from the comparison between FIG. 1 and FIG. 17, the pipe T 3 between the powder material discharge device (quantitative feeder) 5 and the powder # ¾ ”material application device 3 is shown in FIG. Unlike the external lubricating tablet press 1, there is no need to use two pipes T3a and T3b, so that there is also an effect that the device configuration can be simplified.

 Further, in the powder material coating device 13, the lower punch material coating device 4 is placed in a position opposite to the rotation direction of the rotary table 21 (upstream side). The powder material coating device 3 is connected, and the lubricant powder L mixed with the air is discharged into the outlet e2, the long groove Dl, the long groove D2, the slit 32, and the rotation direction of the rotary table 21. Since the air flows in the opposite direction, the moving direction of the upper punch 23 moving in the upper punch receiving groove 31 is opposite to that of the airflow containing the lubricant powder L. Therefore, the lubricant powder L can be efficiently applied to the lower surface S 23 of the upper punch 23.

 In addition, in the powder material applicator 4 B for the lower punch, as shown in FIGS. 20 and 21, the distance L (e 2 −h) between the discharge port e 2 and the suction port h 5. 5) is made longer than at least the diameter D22 of 22.

 That is, in the powder material application device 4B for the lower punch, the suction port h5 of the second suction means (not shown) is rotated at least from the position where the discharge port e2 is provided. It is provided at a position distant from the diameter D22 of each of a plurality of statements 22 provided on the tape 21 (L (e2-h5)> D22).

Accordingly, in the powder material applying device 4B for the lower punch, the powder material applied to the upper surface S24 of the lower punch 24 and the inner peripheral wall S22 of the die 22 (in this example, Lubricant powder L) The extra powder material (in this example, lubricant powder L) is added to the upper surface S 24 of the lower punch 24 and the inner peripheral wall S 22 of the mortar 22 in the mortar 22. Where the powder material dispersed in the air current of the air pulsating wave is directly blown onto the upper surface S 24 of the lower punch 24 inserted into a predetermined position into the lower punch 24 (that is, the discharge port e 2) Since the suction is removed at a place where it does not conduct through 2, the air flow of the air pulsating wave is dispersed on the upper surface S 24 of the lower punch 24 inserted to a predetermined position in 2 The powder material applied to the upper surface S 24 of the lower punch 24 and the inner peripheral wall S 22 of the lower punch 24 without affecting the conditions under which the powder material is directly sprayed (in this example, The excess powder material (in this example, lubricant powder L) is sucked into the upper surface S24 of the lower punch 24 and the inner peripheral wall S22 of the lower punch 24 in the powder L). Can be removed.

 FIG. 23 is a plan view C schematically showing another example of the powder material coating apparatus according to the present invention.

 The powder material coating device 13A is the same as the powder material coating device 13 shown in FIG. 20 except that the shape of the slit portion 32 is zigzag. The corresponding members are denoted by the corresponding reference numerals, and description thereof will be omitted.

 In the powder coating device 13 A, since the slit portion 32 has a zigzag shape, the slit portion 32 moves in the upper punch receiving groove 31. The shape of 2 is simply curved along the rotation trajectory Or of multiple upper punches 2 3 When moving through the inside, since it has passed through the longer slit portion 31, the lower surface S 2 3 ′ of each of the upper punches 2 3. Body material can be applied.

 As a result, when the lubricant powder L is used as the powder material, a score line or a mark is formed on each of the tablets t, for example, on the lower surface S 23 of the upper punch 23. Even when the unevenness is provided, the tablet t can be manufactured without causing tableting troubles such as laminating, cabling, and stateing on the manufactured tablet t.

In addition, in the powder material application device 4 B for the lower punch, as shown in FIG. 23, the distance L (e 2 -h 5) between the discharge port e 2 and the suction port h 5 is defined as At least It is made longer than the diameter D22.

 That is, in the powder material application device 4B for the lower punch, the suction port h5 of the second suction means (not shown) is rotated at least from the position where the discharge port e2 is provided. It is provided at a position further away from the diameter D 22 of each of a plurality of statements 22... Provided on the table 21 (L (e 2 — h 5)> D 22).

 Therefore, the powder material coating device 4 B for the lower punch also uses the powder material applied to the upper surface S 24 of the lower punch 24 and the inner peripheral wall S 22 of the lower punch 22 (in this example, In the lubricant powder L), extra powder material (in this example, lubricant powder L) is added to the upper surface S24 of the lower punch 24 and the inner peripheral wall S22 of the lower punch 22. The place where the powder material dispersed in the air current of the air pulsating wave is directly blown onto the upper surface S 24 of the lower punch 24 inserted to a predetermined position in 22 (that is, the discharge port e 2) , Says that the air is removed by suction at a place where it does not conduct through 22, and the upper surface S 24 of the lower punch 24 inserted to a predetermined position in the The powder material applied to the upper surface S 24 of the lower punch 24 and the inner peripheral wall S 22 of the lower punch 24 without affecting the conditions for directly blowing the powder material dispersed in the airflow (in this example, The lubricant powder L) (In this example, wax powder L) upper surface S 2 4 and 曰 2 2 of the inner circumferential wall surface S 2 extra powder material Te convex to second lower punch 2 4 can be Aspirate removed.

 FIG. 24 is a plan view schematically showing another example of the powder material coating apparatus according to the present invention.

 The powder material coating apparatus 13 B shown in FIG. 20 is different from the powder material coating apparatus 1 shown in FIG. 20 except that a mesh means 14 having a predetermined hole diameter is further provided above the slit portion 32. Since this is the same as 3, the corresponding member devices are denoted by the corresponding reference numerals, and description thereof will be omitted.

In the powder material application device 13B, since the mesh means 14 having a predetermined hole diameter is further provided above the slit portion 32, the powder material discharged from the slit portion 32 may be used. However, particles larger than the pore size of the mesh means 14 are collected by the mesh means 14. As a result, it is possible to prevent the powder material larger than the predetermined particle diameter from adhering to the lower surface S 23 ··· of each of the upper punches 23 ··· '. As a result, the lower surface S 2 3 · · · of each of the upper punches 2 3 The material can be applied evenly.

 In addition, the mesh means 14 is generated by driving the first suction means 11, so that the airflow moving upward from the slit part 32 is straightened. The powder material is uniformly applied to the lower surface S 23 of each of the upper punches 23 also by the rectifying action of the mesh means 14.

 Therefore, when the lubricant powder L is used as the powder material, a score line or a mark is formed on each of the tablets t on the lower surface S 23 of the upper punch 2 3. Even when the convex and concave portions are provided, the tablet t can be manufactured without causing tableting obstacles such as laminating, cabbing, and stateing on the manufactured tablet t.

 In addition, in the powder material application device 4B for the lower punch, as shown in FIG. 24, the distance L (e2−h5) between the discharge port e2 and the suction port h5 is determined as follows. At least, it is designed to be longer than the 22 diameter D22.

 That is, in the powder material application device 4B for the lower punch, the suction port h5 of the second suction means (not shown) is rotated at least from the position where the discharge port e2 is provided. It is provided at a distance from the diameter D22 of each of a plurality of statements 22 provided on the table 21 (L (e2-h5)> D22).

Therefore, the powder material coating device 4 B for the lower punch also uses the powder material applied to the upper surface S 24 of the lower punch 24 and the inner peripheral wall S 22 of the lower punch 22 (in this example, In the lubricant powder L), extra powder material (in this example, lubricant powder L) is added to the upper surface S24 of the lower punch 24 and the inner peripheral wall S22 of the lower punch 22. The place where the powder material dispersed in the air current of the air pulsating wave is directly blown onto the upper surface S 24 of the lower punch 24 inserted into the mortar 22 to a predetermined position (that is, the discharge port e 2) Since the air is removed through the mortar 22 in a place where it does not conduct, the air pulsation wave is applied to the upper surface S 24 of the lower punch 24 inserted into the mortar 22 to a predetermined position. The powder material applied to the upper surface S24 of the lower punch 24 and the inner peripheral wall S22 of the mill 22 without affecting the conditions for directly blowing the powder material dispersed in the airflow (in this example, The lubricant powder L) (In this example, wax powder L) upper surface S 2 4 and excess powder material Te convex on the inner peripheral wall surface S 2 2 of the die 2 2 lower punch 2 4 can be Aspirate removed. FIG. 25 is a plan view schematically showing another example of the powder material coating apparatus according to the present invention, and FIG. 26 is a schematic sectional view taken along line XXVI-XXVI in FIG. .

 In FIG. 26, one of the two upper punches 23, 23 shown in FIG. 26 is shown by an imaginary line to facilitate understanding of the drawing.

 Instead of the powder material coating device 4B for the lower punch, the powder material coating device 13C is provided with a slit-like shape at the front stage of the discharge port e2 on the surface S4a facing the rotary table 21. A powder material applicator 4C for lower punch is further provided with a third sucking I means (not shown) having a molding material suction port h6a.

 In FIG. 26, the portion indicated by h7 is a powder material (in this example, a lubricant powder) sprayed from the outlet e2 together with the positive pressure air pulsation wave for the upper punch. A conduit leading to the powder material application device 3B is shown, and h7a is an opening of the conduit h7.

 The molding material suction port h6a of the third suction means (not shown) is provided on the inner periphery of each of the upper surfaces S23,. It is provided to sequentially remove the molding material M adhering around the wall S 22 ··· and a plurality of said 22 ■ · '. It has a width that is approximately perpendicular to Or and that is approximately the same as or slightly larger than the diameter of each of the plurality of dies 22.

 Then, the powder material mixed with air discharged from the outlet e2 of the powder material applying device 4C for the lower punch and the powder material applying device 3B for the upper punch 3 In order to prevent the suction from the molding material suction port h6a when sucking the third suction means (not shown) when feeding the powder to the lower punch, the powder for the lower punch is used instead of the long groove D1. The discharge port e2 and the slit section 32 are connected to each other by a through hole h7 provided in the material coating apparatus 4C so as not to conduct with the molding material suction port h6a.

In the powder material application device 13C, a third suction means (not shown) having a molding material suction port h6a is provided at a stage preceding the discharge port e2 for discharging the lubricant powder L. Before spraying the lubricant powder L onto each of the dies 22 ··· ', the inner peripheral wall S 22 ··· of each of the dies 22 ··· and the upper surface S 24 of the lower punch 24 ··· · · · Clean Since the molding material M and lubricant powder L used in the previous process do not mix into the tablets t produced in the next process, tablets t Also, there is no non-uniformity in the amount of the lubricant powder L used between the tablets. This enables continuous production of tablets t · · · of the same standard.

 As shown in Fig. 26, the powder material application device 4C for the lower punch also requires the distance L (e2-h5) between the discharge port e2 and the suction port h5 to be at least 22 is made longer than the diameter D22.

 That is, in the powder material applying device 4C for the lower punch, the suction port h5 of the second suction means (not shown) is rotated at least from the position where the discharge port e2 is provided. It is provided at a position further away from the diameter D22 of each of a plurality of statements 22 provided on the table 21 (L (e2-h5)> D22).

 Therefore, in the powder material applying apparatus 4C for the lower punch, the powder material applied to the upper surface S24 of the lower punch 24 and the inner peripheral wall S22 of the lower punch 24 (in this example, the lubricant powder In L), extra powder material (in this example, lubricant powder L) is added to the upper surface S24 of the lower punch 24 and the inner peripheral wall S22 of the lower punch 24 at a predetermined position in the lower 22. A place where the powder material dispersed in the air current of the air pulsating wave is directly blown onto the upper surface S 24 of the lower punch 24 inserted up to (i.e., the discharge port e 2) However, since suction removal is performed, the condition that the powder material dispersed in the air current of the air pulsating wave is directly blown on the upper surface S 24 of the lower punch 24 inserted to the predetermined position in the die 22 is affected. The powder material (in this example, lubricant powder L) applied to the upper surface S 24 of the lower punch 24 and the inner peripheral wall S 22 of the die 22 without being removed, the upper surface of the lower punch 24 Excess powder material (in this example, lubricant powder L) can be sucked and removed from the inner peripheral wall S22 of S24 and the mortar 22.

 Further, in the powder material application device 4C for the lower punch, as shown in FIG. 26, the distance L (e2-h6a) between the discharge port e2 and the suction port h6a is set to at least , Says that it is longer than 22 diameter D22.

That is, in the powder material application device 4C for the lower punch, the suction port h6a of the third suction means (not shown) is moved at least from the position where the discharge port e2 is provided. The rotating table 21 is provided with a plurality of dies 22. (L (e 2—h6)> D 22).

 Therefore, in the powder material application device 4C for the lower punch, the powder material (in this example, lubricant powder L) is formed on the upper surface S24 of the lower punch 24 and the inner peripheral wall S22 of the lower punch 22. Apply

 ヽ-Even before, even if it adheres to the upper surface S24 of the lower punch 24 and the inner peripheral wall S22 of the die 22, unnecessary molding materials and powder materials (in this example, lubricant powder L) The place where the powder dispersed in the air current of the air pulsating wave is directly blown onto the upper surface S 24 of the lower punch 24 inserted to a predetermined position in 22 (that is, the discharge port e 2) Since the suction is removed at a place where it does not conduct through 22, the powder dispersed in the air current of the air pulsation wave is placed on the upper surface S 24 of the lower punch 24 inserted to a predetermined position in the 22. Unnecessary molding or powder materials adhered to the surface of the rotary table 21, the upper surface S24 of the lower punch 24 and the inner peripheral wall S22 of the die 22, without affecting the conditions for directly spraying the body material. In this example, the lubricant powder L) can be removed by suction. Further, in the powder material application device 4C for the lower punch, the distance L (e2-h7a) between the outlet e2 and the opening h7a of the conduit h7 is determined by the diameter D22 of the die 22. In comparison with the above, L (e 2−h7 a) <D22), the connection between the outlet e 2 and the opening h 7 a is made to be conductive via the line 22, and from the outlet e 2, Along with the positive pressure air pulsation wave, extra powder material (in this example, smooth) is sprayed on the inner peripheral wall S22 of 22 and the upper surface S24 of the lower punch 24 in the sprayed powder material. The powder powder L) is guided through the conduit h7 into the slot D2.

 The opening h7a and the suction port h5 are also provided so that the powder sprayed with the positive pressure air pulsation wave from the outlet e2 is easily guided into the conduit h7 from the opening h7a. The distance L (h7 a-h5) between and is longer than at least the diameter D22 of 22 so that the opening h7a and the suction port] 15 conduct through the 22 (L (h7 a-h5)> D 22).

 FIG. 27 is a plan view schematically showing another example of the powder material applying apparatus according to the present invention, and FIG. 28 is a schematic sectional view taken along line XXVIII-XXVIII in FIG. It is.

In FIG. 28, one of the two upper punches 23, 23 shown in FIG. 28 is indicated by an imaginary line to facilitate understanding of the drawing. The powder material coating device 13D is the same as the powder material coating device 13 except for the following points. Description is omitted.

 The powder material coating device 13 D is applied to the powder material coating device 4 D for the lower punch, and the powder material coating device for the upper punch is positioned at a position in the direction of rotation of the rotary table 21. 4D has a connected structure.

 In the powder material coating device 13D, the connection port e9 is connected to the suction port T4a, and the connection port e10 is connected to the powder material coating device 13D lower punch. It is connected to a recess 3c provided on the back surface (the surface on the side facing the rotary table 21) of the powder material application device 4D for use. The first suction means 11 is connected to the connection port e9, and when the first suction means 11 is driven, the first suction means 11 moves to the suction port T4a and goes into the suction port T4a. An airflow of a suction atmosphere is generated.

 When a suction means (not shown) is connected to the connection port e10 and the suction means (not shown) is driven, the suction atmosphere (not shown) is drawn into the recess 3c and into the recess 3c. The airflow is generated, and the molding material and the powder material (the lubricant powder L in this example) adhering to the turntable 21 can be removed.

 In Fig. 28, the portion indicated by h8 is a powder material (in this example, a lubricant powder) sprayed from the outlet e2 together with the positive pressure air pulsation wave for the upper punch. A conduit leading to the powder material application device 3D is shown, and h8a represents an opening of the conduit h8.

 The powder material application device for the lower punch 4 D has a surface S 4 a on the side facing the rotary table 21, which has a discharge port in the forward direction (from the upstream side to the downstream side) in the rotation direction of the rotary table 21. e2, a suction port h8a, and a suction port h5 of a second suction means (not shown) are provided.

The suction port h8a is used for supplying the powder material mixed with air discharged from the discharge port e2 to the slit portion 32 of the powder material application device 3D for the upper punch. In order to prevent the powder material mixed with air discharged from the discharge port e2 from being sucked from the bow I port h5 when sucking the suction means (not shown: :) in step 2, the lower punch The powder material coating device 4D is provided through the through hole h8, which is provided so that the suction port h5 does not conduct. e2 and the slit are connected.

 In addition, in this powder material coating apparatus 13D, as shown in FIG. 28, the distance L (e2-h5) between the discharge port e2 and the suction port h5 is set to at least -22 It is made longer than the diameter D22.

 That is, in the powder material applying device 4D for the lower punch, the suction port h5 of the second suction means (not shown) is rotated at least from the position where the discharge port e2 is provided. The plurality of dies 22... Provided on the table 21 are provided at positions separated from the diameter D 22 of each of the dies 22 (L (e 2 −h 5)> D 22).

 Accordingly, in the powder material applying apparatus 4D for the lower punch, the powder material applied to the upper surface S24 of the lower punch 24 and the inner peripheral wall S22 of the lower punch 24 (in this example, the lubricant powder In L), extra powder material (in this example, lubricant powder L) is added to the upper surface S24 of the lower punch 24 and the inner peripheral wall S22 of the lower punch 24 at a predetermined position in the lower 22. A place where the powder material dispersed in the air current of the air pulsating wave is directly blown onto the upper surface S 24 of the lower punch 24 inserted up to (i.e., the discharge port e 2) However, since suction removal is performed, the condition that the powder material dispersed in the air current of the air pulsation wave is directly blown on the upper surface S 24 of the lower punch 24 inserted to a predetermined position in the inside 22 is affected. The powder material (in this example, lubricant powder L) applied to the upper surface S 24 of the lower punch 24 and the inner peripheral wall S 22 of the lower punch 24, Excess powder material (in this example, lubricant powder L) can be sucked and removed from the inner peripheral wall S22 of S24 and the mortar 22.

 Further, in the powder material application device 4D for the lower punch, the distance L (e 2 -h8 a) between the outlet e 2 and the opening h 8 a of the conduit h8 is determined by the diameter of the mill 22. Compared to D22, the length is shorter (L (Θ 2-h8a) D22), and the connection between the outlet e2 and the opening h8a is made to be conductive through 22 and the outlet e From Fig. 2, with the positive pressure air pulsation wave, in the sprayed powder material, for the inner peripheral wall S22 of 22 and the upper surface S24 of the lower punch 24, extra powder material (in this example) In this example, the lubricant powder L) is guided to the long groove D2 through the conduit h8.

The opening h8a and the suction port h5 are also provided so that the powder material sprayed with the positive pressure air pulsating wave from the outlet e2 is easily guided into the conduit h8 from the opening h8a. The distance L (h8 a-h5) between them is at least longer than the diameter D22 of the mortar 22, so that the opening h8a and the suction port h5 do not conduct through the 22. (L (h8 a-h5)> D 22).

 FIG. 29 is a plan view schematically showing another example of the powder material coating apparatus according to the present invention. FIG. 30 is a schematic sectional view taken along line XXX-XXX in FIG. It is.

 In the powder material application device 13E, the connection port e9 is connected to the suction port T4a, and the connection port e9 is connected to the first suction means 11. When the first suction means 11 is driven, an airflow of a suction atmosphere is generated at the suction port T4a toward the inside of the suction port T4a.

 In FIG. 30, one of the two upper punches 23, 23 shown in FIG. 21 is shown by an imaginary line to facilitate understanding of the drawing.

 This powder material coating device 13E is an upstream side of the discharge port e2 of the powder material coating device 4D for the lower punch, which constitutes the powder material coating device 13D (the rotation direction of the rotary table 21). In the direction opposite to the above, a molding material suction port h6a connected to the third suction means (not shown) is further provided.

 The powder material coating device 13D is connected to the powder material coating device 4D for the lower punch and the powder material coating device 4 for the upper punch at a position in the forward direction in the rotation direction of the rotary table 21. D is connected.

 The surface S 4 a of the powder material application device 4 D for the lower punch facing the rotary table 21 is provided with a discharge port e 2, in the forward direction (from the upstream side to the downstream side) in the rotating direction of the rotary table 21. A suction port h8a and a suction port h5 for second suction means (not shown) are provided.

The suction port h8a is used to supply the powder material mixed with air discharged from the discharge port e2 to the slit 32 of the powder material application device 3D for the upper punch. When sucking the suction means (not shown), the powder material mixed with the air discharged from the discharge port e2 is not sucked from the inlet port h5 so that the powder material for the lower punch is used. In the coating device 4D, the suction port h5 is provided so as not to conduct, and the through hole h8 connects the discharge port e2 and the slit portion. In the powder material coating apparatus 13E, a molding material is provided at the front of the discharge port e2 for discharging the lubricant powder L of the powder material coating apparatus 4E for the lower punch constituting the apparatus 13E. A third suction means (not shown) having a suction port h 6 a is provided, and before the lubricant powder L is sprayed on each of the dies 22, the inner circumference of each of the dies 22 is described. Since the upper surface S 24 ··· of the wall S 22 ··· and the lower punch 24 ·· 'is cleaned, the molding material M and lubricant powder L used in the previous process are produced in the next process.錠 剤 · 'し て も し て も し て も し て も し て も し て も し て も し て も し て も し て も し て も し て も. Does not occur. This enables continuous production of tablets of the same standard.

 In addition, in this powder material coating apparatus 13E, as shown in FIG. 30, the distance L (e2-h5) between the discharge port e2 and the suction port h5 is set to at least the diameter D22 of the die 22. It is made longer than.

 That is, even in the powder material applying device 4D for the lower punch, the suction port h5 of the second suction means (not shown) is rotated at least from the position where the discharge port e2 is provided. It is provided at a position distant from the diameter D22 of each of a plurality of sayings 22 · · 'provided on one bull 21 (L (e2-h5)> D22).

 Accordingly, in the powder material applying apparatus 4D for the lower punch, the powder material applied to the upper surface S24 of the lower punch 24 and the inner peripheral wall S22 of the lower punch 24 (in this example, the lubricant powder In L), extra powder material (in this example, lubricant powder L) is added to the upper surface S24 of the lower punch 24 and the inner peripheral wall S22 of the lower punch 24 at a predetermined position in the lower 22. A place where the powder material dispersed in the air current of the air pulsating wave is directly blown onto the upper surface S 24 of the lower punch 24 inserted up to (i.e., the discharge port e2) is a place where it does not conduct through 22 Since suction removal is performed, the condition that the powder material dispersed in the air current of the air pulsating wave is directly sprayed on the upper surface S 24 of the lower punch 24 inserted to the predetermined position in the die 22 is affected. The upper surface S of the lower punch 24 in the powder material (in this example, the lubricant powder L) applied to the upper surface S 24 of the lower punch 24 and the inner peripheral wall S 22 of the die 22 Excess powder material (in this example, lubricant powder L) can be sucked and removed on the inner peripheral wall S22 of No. 24 and No. 22.

Further, in the powder material application device 4D for the lower punch, the discharge port e2 and the conduit h8 are connected. The distance L (e2-h8a) between the opening h8a and the diameter D22 of the mortar 22 is made shorter (L (e2—h8a) less D22), and the outlet e2 and the opening h 8a through the mortar 22 so as to conduct, and from the discharge port e2 together with the air pulsation wave of positive pressure

 ヽ '

In the sprayed powder material, extra powder material (in this example, lubricant powder L) is passed through the conduit for the inner peripheral wall S22 of the mortar 22 and the upper surface S24 of the lower punch 24. Through h8, it is guided to the long groove D2.

 Also, the opening h8a and the suction port h5 are connected so that the powder material sprayed with the positive pressure air pulsation wave from the outlet e2 is easily guided into the conduit h8 from the opening h8a. The distance L (h8 a-h5) between them should be at least longer than the diameter D22 of 22 so that the opening h8a and the suction port h5 do not conduct through 22. (L (h8 a-h5)> D 22).

 Note that the powder material application device 3 for the upper punch shown in the first embodiment of the invention is merely a preferable example for explaining the present invention, and there are various modifications. As the applicator for the powder material for the upper punch, the slit portion 32 is formed in a zigzag shape, similarly to the powder material applicator 1.3A, or above the slit portion 32. Similar to the powder material coating apparatus 13B, the present invention includes a device provided with the mesh means 14 and a device provided with the slit means 32 in a zigzag shape and further provided with the mesh means 14 above the slit means 32 according to the present invention. It is included in the powder material application device for the upper punch.

 In addition, the powder material coating apparatuses 13, 13A, 13B, 13C, and 13E shown in the second embodiment of the present invention merely describe preferred examples for describing the present invention, and There are variations.

As such a powder coating device, the slit portion 32 may have a zigzag shape similarly to the powder material coating device 13A, and a mesh means 14 may be provided above the slit portion 32 of the present invention. It is included in the powder applicator for upper punches according to the above. Further, as the external lubricating tableting machine according to the present invention, in Embodiment 1 of the present invention, both an applicator for the powder material for the upper punch and an applicator for the powder material for the lower punch are provided. However, the external lubricating tableting machine according to the present invention may include at least one of an applicator for a powder material for an upper punch and an applicator for a powder material for a lower punch. included. Next, the present invention will be described based on experimental examples.

 (Observation test of change of spray amount over time by dispersion method)

 (Experimental example 1)

 A powder material (magnesium stearate powder (in this example, powder of local government)) is stored in the hopper 51 using the powder material discharge device 5 shown in FIG. 7, and is stored in the dispersion chamber 55 in FIG. Using the air pulsation wave generator 8 shown in the figure, the supply air amount is 25 Newton liters / minute (N · 1 / min) (output value from the flow control device 21), the supply air pressure is 0.2Mpa, and the vibration frequency is An air pulsation wave of 20 hertz (Hz) was generated, and the change in the amount (spray amount) of the powder material discharged from the outlet 55b was measured temporarily. (Comparative Example 1)

 As Comparative Example 1, an air pulsation wave inlet 55 a was provided in the dispersion chamber 55 of the powder material discharge device 5 in a direction passing through the center line of the dispersion chamber 55, and the air pulsation wave was swirled in the dispersion chamber 55. The same experiment as in Experimental Example 1 was performed except that the amount was not changed, and the change in the amount of the powder material (spray amount) discharged from the discharge port 55b was temporarily measured.

 In Experimental Example 1 and Comparative Example 1, during each test, the elastic film of the powder material stored in each of the powder material storage chambers 53, 53 was measured based on the detection value of the level sensor 56. The height from 3 was controlled to 30 mm ± 2.5 mm.

The results are shown in Table 1 and FIG.

[Table 1] Temporary spraying of 别

尚、 表 1及び図 3 1中、 新法は、 実験例 1 (本発明に係る粉体材料の吐出装置 5を用いた場合） の実験結果を、 また、 従来法は、 比較例 1の実験結果を示して いる。

In Table 1 and FIG. 31, the new method shows the experimental results of Experimental Example 1 (when the powder material discharge device 5 according to the present invention is used), and the conventional method shows the experimental results of Comparative Example 1. Is shown.

 Also, in Table 1, the spray amount indicates the weight (mg) of the powder material sprayed from the outlet 55b in one minute, and the CV indicates the ratio (%). R indicates the difference between the maximum value and the minimum value.

 From the results shown in Table 1 and Fig. 31, it is clear that the new method (Experimental Example 1) has less variation in the amount of powder material discharged (spray amount) than the conventional method (Comparative Example 1). Natsuta (Variation under the new law and variation under the conventional method).

Based on the above, the new law requires that a certain amount of powder be continuously and stably It became clear that it could be discharged from 4 b.

 In addition, according to the new method, the holes (slits) 5

The powder material discharged from 4a was uniformly dispersed in the swirling air pulsating wave.

 On the other hand, according to the conventional method, in the dispersing chamber 55, a hole (slit) of the elastic elastic body 54 is formed.

The powder material discharged from 54a was not uniformly dispersed in the air pulsation wave. As described above, in the new method, the particle size of the powder material discharged from the outlet 55b is more uniform than the particle size of the powder material discharged from the outlet 55b in the conventional method. Was revealed.

 (Observation test of change in spray amount due to difference in jet height)

 (Experimental example 2)

 A powder material (magnesium stearate powder (pharmaceutical product in this example)) is stored in the hopper means 51 using the powder material discharging device 13 shown in FIG. The powder material extraction means (powder material extraction valve) 52 is controlled to open and close based on the detection values of the level sensor 56 and the powder material stored in the powder material storage chamber 53. While constantly controlling the height from the permeable membrane 54 to 10 mm ± 2.5 mm, using the air pulsation wave generator 8 shown in Fig. 12, the supply air volume is 25 Newton-liter. / Min (N.1 / min) (output value from the flow controller 12), supply air pressure is 0.2 Mpa, and a frequency of 20 Hz (Hz) is generated and discharged. Changes in the amount (spray amount) of the powder material discharged from the mouth 55b were measured over time. (Experimental example 3)

 Experimental example 2 is the same as the experiment except that the height from the elastic block 54 was always controlled to 70 mm and the soil to 2.5 mm, and the powder discharged from the discharge port 74 b was used. Changes in the amount of spray (spray amount) were measured over time.

The results are shown in Table 2 and FIG. [Table 2]

表 2及び図 3 2より、 同じ装置及び同じ空気脈動波を用いた場合であっても、 弾性膜体 5 4の孔部 （スリット） 5 4 aより排出された粉体材料の量には違いが あることが明らかになった。

From Table 2 and Fig. 32, the amount of powder material discharged from the hole (slit) 54 a of the elastic membrane 54 differs even when the same device and the same air pulsating wave are used. It became clear that there was.

 As a result, the height of the powder material stored in the powder material storage chamber 2 from the elastic membrane 54 can be constantly discharged from the discharge port 55 b in order to discharge a constant amount of the powder material. It has been found that it is always preferable to keep the value approximately constant.

 (Continuous tableting test)

 (Experimental example 4)

Under the conditions of Experimental Example 3, an appropriate amount of binder was added to lactose granules using an external lubricating tableting machine 1B shown in Fig. 17 and then uniformly kneaded. Using the upper punch and the lower punch having a dividing line and continuous punching, tableting obstruction (sticking, caving, laminating) of the manufactured tablets was observed.

 (Comparative Example 2)

 Comparative Example 2 shows an example in which tablets were continuously tableted using the same device as the external lubricating tableting machine described in JP-A-56-14098.

 An appropriate amount of a binder was added to the lactose granules used in Experimental Example 4 and then uniformly kneaded. Then, in a lubricant application chamber, a lower punch was inserted into a predetermined position under a mill. An appropriate amount of magnesium stearate powder is placed on the upper surface of the punch, and then, as a set, the lower punch and the upper punch are housed in the spraying chamber, and air is sprayed from the nozzle at a predetermined pressure to smooth out. In the lubricant application chamber, the magnesium stearate powder placed on the upper surface of the lower punch was blown off, and the upper surface of the lower punch, the lower surface of the upper punch, and the inside of the mill with the lower punch inserted to the specified position Magnesium stearate powder is applied to the peripheral wall, and the upper punch with magnesium stearate powder applied to the lower surface, the lower punch with magnesium stearate powder applied to the upper surface, and the inner peripheral wall as described above. Magnesium stearate Continuous tableting was attempted using a die coated with gum powder.

 In Experimental Example 4, no tableting trouble was observed even after 5 hours of continuous keying, whereas in Comparative Example 2, the upper surface of the lower punch, the lower surface of the upper punch, and the lower punch were inserted to the predetermined positions. Various conditions were applied to apply the magnesium stearate powder to the inner peripheral wall of the mortar in the above state, but in all cases, tableting failure was observed quite frequently within one hour.

 As described above, the external lubricating tableting machine 1B according to the present invention provides continuous tableting without adding a lubricant to the molding material, even if the tablet has a complex uneven shape such as stamping. It became clear what we could do. '

 In addition, the same test as above was conducted using the external lubricating tablet press 1, 1A, etc. instead of the external lubricating tablet press 1B. It became clear that the same effect as 1B was achieved.

 FIG. 33 is a plan view schematically showing another example of the powder material coating apparatus according to the present invention.

This powder material coating device 13F is a powder material coating device 13 shown in FIG. The same as the powder applicator 13 except that the powder material applicator 3F for the upper punch is used instead of the powder applicator 3B for the upper punch that constitutes It has a configuration. As shown in Fig. 33, instead of the slit of the powder material coating device 3B for the upper punch, the powder material coating device 13F is provided on the bottom surface of the upper punch receiving groove 31 as shown in Fig. 33. The air pulsation is generated on the lower surface S2 3 of each of the plurality of upper punches 2 3 moving along the rotation path of the upper punches 2 3 A plurality of injection holes hs are arranged for spraying a powder material (in this example, lubricant powder L) dispersed in a wave current. In the powder material coating device 1 3F, a plurality of upper punches 23 move along the rotation path of the upper punches 2 3 on the bottom surface of the upper punch receiving grooves 31. A plurality of injection holes for spraying a powder material (in this example, lubricant powder L) dispersed in the air pulsating wave air flow on each lower surface S 23 of the upper punch 23. hs ..., the powder material (in this example, lubricant powder L) is sprayed from each of the plurality of injection holes hs Is obtained.

 This makes it difficult for the powder material (in this example, the lubricant powder L) to adhere due to the relationship with gravity, so that the lower surface S 2 3 (In this example, the lubricant powder L) is applied uniformly.

 In the case where a plurality of injection holes hs are arranged on the bottom surface of the upper punch receiving groove 31, the plurality of injection holes hs You may do so.

 Further, as shown in FIG. 33, when a plurality of injection holes hs are arranged in three rows, each of the injection holes hs provided in the center row and both sides of the injection holes hs are provided. If the injection holes hs... Provided in the rows are alternately provided, the same effect as when the slit portions 32 are provided in a zigzag manner can be obtained. Industrial applicability

As described above in detail, in the method for applying a powder material according to claim 1, the powder material mixed with the air pulsating wave is applied to the upper surface of the lower punch, where the powder material is easily attached and deposited. By directly spraying, by blowing off the powder that has accumulated extra, Excessive powder material is prevented from adhering and accumulating on the upper surface of the lower punch, and the powder material is uniformly applied to the upper surface of the lower punch.

 Also, compared to the upper surface of the lower punch, the powder material is less likely to adhere, and the inner peripheral wall where the lower punch has been inserted to a predetermined position has excess powder material blown off from the upper surface of the lower punch. Because the part adheres, the same amount of powder material as that applied to the upper surface of the lower punch is uniformly applied to the inner peripheral wall surface.

 The powder material not applied on the upper surface of the lower punch and the inner peripheral wall is mixed with air, dispersed, and sent to the lower surface of the upper punch constituting the next set in a fluidized state. On the lower surface of the upper punch, the powder material is put on the airflow from the lower side to the upper side with respect to the lower surface of the upper punch, so that the powder material adheres over time, so that the powder material is related to gravity. Approximately the same amount of powder material as that applied to the upper surface of the lower punch and the inner peripheral wall is said to be uniformly applied to the lower surface of the upper punch, which is difficult to adhere to.

 In the method for applying a powder material according to claim 2, the powder material is applied to the inner peripheral wall surface where the upper surface of the lower punch and the lower punch are inserted to a predetermined position, and the powder is applied to the lower surface of the upper punch. The body material is applied by a series of airflows, and extra powder material is used to apply to the lower surface of the upper punch, on the upper surface of the lower punch and on the inner peripheral wall. The powder material can be used effectively without waste.

 In the powder material applying method according to claim 3, a simple configuration in which a suction means having a suction port is provided at a position above the lower surface of the upper punch, the air flow from the lower side to the upper side is formed on the lower surface of the upper punch. Can be generated.

 In the powder material application method according to claim 4, the powder material applied to the upper surface of the lower punch and the inner peripheral wall surface of the die among the powder material applied to the upper surface of the lower punch and the inner peripheral wall surface of the die are described. The material is sucked and removed from the place where the powder material dispersed in the air current of the air pulsation wave is directly blown onto the upper surface of the lower punch inserted into the specified position inside the pier, where it does not conduct. The surface of the lower punch and the inner wall of the lower punch are not affected by the condition that the powder dispersed in the air pulsation wave is directly blown onto the upper surface of the lower punch inserted into the mortar to a predetermined position. Excess powder can be removed by suction from the applied powder material on the upper surface of the lower punch and the inner peripheral wall.

In the tablet manufacturing method according to claim 5, the lower punch is located at the lowest position in The powder material is applied to the upper surface of the lower punch and the inner peripheral wall, and when the molding material is compression-molded, the powder material is uniformly applied to the inner peripheral wall that comes into contact with the molding material. Because it is applied, the molding material does not adhere when manufacturing tablets. As a result, tablets can be manufactured without causing tableting troubles such as stateing, laminating, and caving, thereby improving the tablet manufacturing efficiency. In the method for producing a tablet according to claim 6, the inner peripheral wall surface where the lower punch is inserted to a predetermined position, the lower surface of the upper punch, and the powder material applying method according to claim 1, The powder material is applied to each of the upper surfaces of the lower punches, and the inner surface of the lower punch is uniformly coated with the powder material. The upper punch has a lower surface uniformly coated with the powder materials, and A tablet is manufactured by successively using lower punches having an upper surface on which a powder material is uniformly applied to compress the molding material.

 As a result, when a lubricant is used as a powder material, Kizuki says that without causing squealing and without tableting troubles (laminating, caving, sticking, etc.) Continuous tableting becomes possible. This makes it possible to manufacture external lubricating tablets on a production basis.

 In addition, when a surface modifier is used as the powder, the surface modifier can be uniformly applied by Kizuki.

 By using this tablet manufacturing method, a tablet can be manufactured using a punch and a die to which the surface modifier has been uniformly applied, so that the surface modifier is uniformly applied to the surface of the tablet. Tablets can be manufactured.

 In the tablet manufacturing method according to claim 7, the powder material is applied to the inner peripheral wall surface where the upper surface of the lower punch and the lower punch are inserted to a predetermined position, and the powder material is applied to the lower surface of the upper punch. Is applied in a series of airflows, and excess powder material is used to coat the lower surface of the upper punch for the upper surface of the lower punch and the inner peripheral wall. It can be used effectively without waste.

 In the tablet manufacturing method according to the eighth aspect, a simple configuration in which a suction step having a suction port is provided at a position above the lower surface of the upper punch, the air flow from the lower side to the upper side is formed on the lower surface of the upper punch. Can be generated.

In the tablet manufacturing method according to claim 9, the tablet is applied to the upper surface of the lower punch and the inner peripheral wall surface. Of the powder material, extra powder material for the upper surface of the lower punch and the inner peripheral wall of the die was dispersed in the air current of the air pulsating wave on the upper surface of the lower punch inserted to a predetermined position. The place where the powder material is directly sprayed is suction-removed in a place where it does not conduct, so it is dispersed into the air current of the air pulsating wave on the upper surface of the lower punch inserted up to the specified position. The powder material applied to the upper surface of the lower punch and the inner peripheral wall of the mortar, without affecting the conditions for directly spraying the powdered material, excess powder for the upper surface of the lower punch and the inner peripheral wall The material can be aspirated off.

 In the method for manufacturing a tablet according to claim 10, the lower punch is applied with a powder material on the upper surface of the lower punch and the inner peripheral wall surface at the lowest position in the mold. During compression molding, the powder material is applied evenly to the inner peripheral wall that comes into contact with the molding material, so that the molding material does not adhere.

 In the powder material applying apparatus for an upper punch according to claim 11, a long slit portion for spraying the powder material dispersed in the air current of the air pulsating wave is provided on a lower surface of the upper punch, The powder material is sprayed on the lower surface of the upper punch over time while the upper punch passes over the slit part, so that the powder material is less likely to adhere due to gravity. Since the powder material is attached to the lower surface of the upper punch, the powder material can be evenly applied to the lower surface of the upper punch.

 The powder material application device for an upper punch according to claim 12, wherein the rotary table is provided above the slit in a size large enough to cover the area of the slit, and when viewed in a plan view. A plurality of first suction means having suction ports shaped along the outer peripheral side of the rotating orbit are provided. As a result, when the first suction means is driven, an airflow is generated uniformly above the entire region of the slit portion and directed upward from below. Therefore, the powder material blown out from the slit moves from the entire area of the slit to the suction port direction from above to below.

 As a result, the upper punch moves from the start to the end of the long slit on the lower surface of the upper punch provided for the next die, which moves inside the upper punch receiving groove. In the meantime, the powder material coming upwards from below is evenly colliding with the lower surface in a substantially vertical direction.

In this way, the powder material is difficult to adhere due to gravity, The powder material that blows out from the lower part to the upper part from the entire area of the slit is evenly attached to the lower part of the upper punch. Can be applied.

 In addition, since the powder material mixed with air is made to flow in the direction opposite to the rotation direction of the turntable, the powder material mixed with air is made to flow in the forward direction with the rotation direction of the turntable. The powder material can be made to efficiently collide with the lower surface of the upper punch as compared with the configuration described above.

 In the powder material applying device for the upper punch, the powder material can be efficiently and uniformly applied to the lower surface of the upper punch in this manner.

 For this reason, if the powder material applying device for the upper punch is used, the lower surface is uniformly coated with the powder material, and the upper surface is uniformly coated with the powder material. Tablets can be manufactured using the lower punch that has been applied and the fact that the powder material has been applied evenly on the inner peripheral wall, so if a lubricant is used as the powder material, According to Kizuki, it is possible to perform continuous tableting without causing squeaks and without tableting troubles (laminating, cabbing, sticking, etc.). This allows the production of external lubricating tablets at the production pace.

 In addition, when a surface modifier is used as a powder, the surface modifier can be uniformly applied to the surface of the punch by using a powder material application device for the upper punch. Since tablets can be manufactured using a punch with a coating agent uniformly applied, it is possible to manufacture tablets in which the surface modifier is uniformly applied to the surface of the tablet.

 In the powder material applying apparatus for an upper punch according to claim 13, the width of the slit portion is made to substantially match the width of the area of the score line or the mark formed on the tablet. The powder material moves on the lower surface of the upper punch, moving around the part forming the score line or marking, that is, the part where the complex protrusion is formed, on the lower surface of the upper punch moving in the groove. Applied o

As described above, in the powder material applying device for the upper punch, the powder material can be sufficiently and uniformly applied to a portion of the lower surface of the upper punch where a score line or an engraving is formed. In the case where a lubricant is used, the part of the tablet provided with a score line or a mark, that is, a part having a complex unevenness, is used for laminating, caving, and state. Tablets can be produced without kinging.

 Therefore, if this device is used, it will be possible to manufacture external lubricating tablets provided with score lines and stamps at a production pace, which was conventionally difficult to manufacture on a production basis.

 Also, if the powder material applying device for the upper punch is used, it is difficult to apply the powder material using the conventional powder material applying device. The powder material can be applied sufficiently and evenly to the part that forms the powder, and if a surface modifier is used as the powder material, it has conventionally been difficult to manufacture the powder material. In addition, it becomes possible to manufacture a tablet uniformly coated with a surface modifying agent even at a portion where a score line or a mark is provided.

 In the powder material applying apparatus for an upper punch according to claim 14, the slit portion has a zigzag shape. As a result, the upper punch, which moves in the upper punch receiving groove, moves in the upper punch receiving groove as compared to the slit whose slit portion is simply curved along the rotation path of the plurality of upper punches. Since the powder material has passed through the longer slit when moving, the powder material is more sufficiently and uniformly applied to the lower surface of the upper punch.

 As a result, when a lubricant is used as the powder material, laminating, caving, and sticking can be performed more in the portion of the tablet where the score lines and markings are provided, that is, in the portion where complex irregularities are formed. Tablets can be produced without any further occurrence. Therefore, if this device is used, an external lubricating tablet provided with a score line and a stamp can be manufactured with higher production efficiency.

 In addition, if the powder material applying device for the upper punch is used, the powder can be sufficiently and uniformly applied to a portion of the lower surface of the upper punch where a score line or a mark is formed. If a surface modifier is used as the powder material, tablets with the surface modifier applied uniformly at the part where the score line or marking is provided can be manufactured with even higher production efficiency. Will be able to

In the powder material applying apparatus for an upper punch according to claim 15, a mesh means having a predetermined hole diameter is provided above the slit portion, and the powder material having a predetermined particle diameter or more is provided. By catching with, large powder material can be prevented from adhering to the lower surface of the upper punch. As a result, a powder material having a uniform particle size can be uniformly applied to the lower surface of the upper punch.

 Therefore, by using the powder material applicator for the upper punch, it is possible to easily produce a tablet on which the powder material is uniformly applied on the surface without making the tableting difficult. Further, since the air flow flowing from the slit portion to the suction port of the first suction means is rectified by the mesh means, the powder material is more uniformly applied to the lower surface of the upper punch.

 In the powder material applying apparatus for an upper punch according to claim 16, instead of the slit portion, the inside of the upper punch receiving groove is formed along the rotation path of the plurality of upper punches on the bottom surface of the upper punch receiving groove. A plurality of injection holes for spraying powder material dispersed in the air current of the air pulsating wave are arranged on the lower surface of the plurality of upper punches that move. The powder material is sprayed from each of the plurality of injection holes. In this case, a certain rectifying effect is obtained in the airflow.

 This makes it difficult for the powder material to adhere due to gravity, and the powder material is uniformly applied to the lower surface of the upper punch.

 In the powder material applying apparatus for a lower punch according to claim 17, the powder material dispersed in the air current of the air pulsating wave is discharged from an outlet to a lower punch inserted into a die to a predetermined position. Due to the air pulsation wave amplitude, due to the gravitational force due to the amplitude of the air pulsation wave, even if powder material accumulates extra on the upper surface of the lower punch, the air pulsation wave causes such extra powder As a result of the body material being blown off from the upper surface of the lower punch, the powder material can be uniformly applied to the upper surface of the lower punch, where excess powder material tends to accumulate due to gravity.

 In addition, the powder material blown off from the upper surface of the lower punch adheres to the inner peripheral wall surface, so that the powder material can be uniformly applied to the inner peripheral wall surface of the mill.

 In the powder material applying apparatus for a lower punch according to claim 18, the lower punch is inserted to a predetermined position from a discharge hole of a through hole provided so as to penetrate the main body. However, the powder material mixed with the air pulsation wave is directly blown. As a result, excess powder material, which easily adheres or accumulates on the upper surface of the lower punch, is blown off from the upper surface of the lower punch by the air pulsating wave. It is applied evenly.

Similarly, extra powder material adhering to the inner peripheral wall surface of the mortar is also blown off by the air pulsating wave, so that the powder material is uniformly applied to the inner peripheral wall surface of the mortar. The apparatus for applying a powder material for a lower punch according to claim 19, further comprising a second suction means, wherein the lower punch and the powder material adhering extra, and excess powder on the rotary table are provided. The fee is removed. , '

 Therefore, for example, if a molding material filling portion is provided at a position downstream of the second suction means, in the step of filling the molding material into the space formed by the lower punch and the lower punch, the lower punch and the extra It is possible to prevent the adhering powder material and excess powder material on the rotary table from being mixed into the molding material.

 As a result, an external lubricating tablet that does not contain a lubricant therein can be produced more efficiently.

 In addition, it becomes possible to produce a surface-modified tablet in which no surface modifier is mixed in the tablet.

 In the powder material applying apparatus for a lower punch according to claim 20, the suction port of the second suction means is arranged so as to be orthogonal to the plurality of rotation trajectories, and to each of the plurality of rotations and the periphery thereof. The second suction means is driven by the lower punch and the powder material adhering extra to the lower punch and the excess powder material on the rotary table. Can be removed more efficiently.

 This makes it possible to efficiently produce an external lubricating tablet that does not further contain a lubricant.

 In addition, it is possible to manufacture surface-modified tablets that are not contaminated at all by the surface modifier inside the tablet.

 In the powder material applying apparatus for a lower punch according to claim 21, the powder material applied to the upper surface of the lower punch and the inner peripheral wall of the die, The place where the powder material dispersed in the air current of the air pulsation wave is directly blown onto the upper surface of the lower punch inserted into a predetermined position in the above-mentioned area is sucked and removed. So that the powder material dispersed in the air current of the air pulsating wave is directly sprayed onto the upper surface of the lower punch inserted into the mortar to the specified position, without affecting the condition of the lower punch. Of the powder material applied to the upper surface and the inner peripheral wall surface of the die, the excess powder material for the upper surface of the lower punch and the inner peripheral wall surface can be removed by suction.

In the powder material application device for lower punches according to claim 22, the lubricant is discharged. A third suction means having a molding material suction port is provided in the front part of the mouth to clean the inner peripheral wall surface and the upper surface of the lower punch before spraying the lubricant. Since the molding materials and lubricants used do not mix into tablets in the next process, even if tablets are manufactured continuously, the amount of lubricant used among tablets may be uneven. Absent. As a result, tablets of the same standard can be manufactured continuously.

 In the powder material applying apparatus according to claim 23, the lower punch is inserted to a predetermined position from a discharge hole of a through hole provided in the powder material applying apparatus for the lower punch. Then, the powder material mixed with the air pulsation wave is directly blown. As a result, excess powder material, which easily adheres or accumulates on the upper surface of the lower punch, is blown off from the upper surface of the lower punch by the air pulsating wave. It is applied evenly.

 Similarly, the powder material adhering extra to the inner peripheral wall is also blown off by the air pulsating wave, so the powder material is uniformly applied to the inner peripheral wall.

 Further, in this powder material applying device, the powder material applying device for the upper punch is connected to the powder material applying device for the lower punch in a direction opposite to the rotation direction of the rotary table, and the powder for the lower punch is connected. The inner peripheral surface, which is contained in the powder material application device for the lower punch, together with air from the discharge port on the surface side of the through-hole of the body material facing the rotary table. The powder material sprayed on the upper surface of the lower punch inserted into the upper punch to a predetermined depth is further supplied to a slit provided in a powder material application device for the upper punch.

 Therefore, the excess powder material blown off from the upper surface of the lower punch and / or the inner peripheral wall surface by the air pulsation wave is mixed with the air, and in a direction opposite to the rotating direction of the rotary table (upstream side). And is released from the slit.

 In the powder material coating device, the powder material coating device for the upper punch contains a plurality of upper punches that rotate and move so as to include a long slit region. Because the upper punch receiving groove is provided, the upper punch that moves in the upper punch receiving groove, on the lower surface of the upper punch While moving from the start to the end, the powder material coming from above and below from all over will continue to collide with the lower surface in a substantially vertical direction.

In this way, the powder material is difficult to adhere due to gravity, So that the powder material is attached to the lower surface of the upper punch so that the powder material can be applied uniformly.

 In addition, since the powder material mixed with air is made to flow in the direction opposite to the rotation direction of the turntable, the powder material mixed with air is made to flow in the forward direction with the rotation direction of the turntable. The powder material can be made to efficiently collide with the lower surface of the upper punch as compared with the configuration described above. Thus, the powder material application device can efficiently and uniformly apply the powder material to the lower surface of the upper punch.

 Therefore, if this powder material application device is used, the lower punch, on which the powder material is applied evenly on the lower surface, and the lower punch, on which the powder material is applied evenly on the upper surface, can be used. Tablets can be manufactured using the fact that the powder material is uniformly applied to the inner peripheral wall surface.

 As a result, when a lubricant is used as the powder material, Kizuki says, without causing squeaking and without tableting troubles (laminating, cabbing, sticking, etc.) Continuous tableting becomes possible. This makes it possible to manufacture external lubricating tablets on a production basis.

 In addition, if a surface modifier is used as a powder material, the surface modifier can be uniformly applied to a punch and a die by using this powder material coating device. A tablet to which the surface modifier is uniformly applied can be manufactured with high production efficiency.

 In the powder material application device according to claim 24, the powder material application device for the upper punch constituting the powder material application device is provided above the slit portion of the powder material application device. Since the first suction means having the same configuration as that of the powder material applying device for punches is provided, the same effect as the powder material applying device for upper punches according to claim 12 is provided. . In the powder material applying apparatus according to claim 25, the width of the slit portion of the powder material applying apparatus for the upper punch, which constitutes the powder material applying apparatus, is set according to claim 13. 10. The powder material application device for an upper punch according to claim 9, wherein the device is configured to substantially match the width of an area of a score line or a mark formed on a tablet, similarly to the powder material application device for a punch. It has the same effect as.

In the powder material application device according to claim 26, the shape of the slit portion of the powder material application device for the upper punch, which constitutes the powder material application device, is set as described in claim 14. Since it is formed in a zigzag shape as in the powder material application device for punches, the same effect as the powder material application device for upper punches according to claim 14 can be obtained.

 In the powder material applying device according to claim 27, the powder material applying device for the upper punch constituting the powder material applying device is provided above the slit portion of the powder material applying device. Since the mesh means having a predetermined hole diameter is provided similarly to the powder material application device for punches, the same effect as the powder material application device for upper punches according to claim 15 can be obtained. The powder material applying device according to claim 28, wherein the discharge port of the powder material applying device for the lower punch constituting the powder material applying device is the lower punch according to claim 18. In the same way as the outlet of the powder material applicator, it is located just below the outlet, and the lower punch is inserted to the specified position in the center of the lower punch. Thus, the same effect as the powder material application device for lower punches according to claim 18 can be obtained. In the powder material application device according to claim 29, the powder material application device for lower punches constituting the powder material application device is the powder material for lower punches according to claim 19. Since the second suction means having the same configuration as that of the material coating device is further provided, the same effect as the powder material coating device for lower punches according to claim 19 can be obtained.

 In the powder material applying apparatus according to claim 30, the suction port of the second suction means provided in the powder material applying apparatus for the lower punch constituting the powder material applying apparatus is provided. Since the configuration is the same as that of the apparatus for applying a powder material for a lower punch described in Item 0, the same effect as that of the apparatus for applying a powder material for a lower punch described in Item 20 is exhibited.

 In the powder material applying apparatus according to claim 31, in the powder material applied to the upper surface of the lower punch and the inner peripheral wall, excess powder is used for the upper surface of the lower punch and the inner peripheral wall. The material is sucked and removed from the place where the powder material dispersed in the air current of the air pulsating wave is directly blown onto the upper surface of the lower punch inserted into the mortar to the specified position, where it does not conduct. Therefore, without affecting the conditions for directly spraying the powder material dispersed in the air pulsating wave airflow onto the upper surface of the lower punch inserted to a predetermined position, the upper surface of the lower punch and the Of the powder material applied to the inner peripheral wall surface, excess powder material can be removed by suction on the upper surface of the lower punch and the inner peripheral wall surface.

In the powder material applying device according to claim 32, the powder material applying device for the lower punch constituting the powder material applying device includes the powder for a lower punch according to claim 22. Material coating Since the third suction means similar to the cloth device is provided, the same effect as the powder material application device for lower punches according to claim 22 can be obtained.

 In the powder material application apparatus according to claim 33, instead of the slit portion, a plurality of the plurality of upper punches that move in the upper punch receiving groove along the rotation path of the plurality of the upper punches on the bottom surface of the upper punch receiving groove. On the lower surface of the upper punch, a plurality of injection holes for spraying the powder material dispersed in the air current of the air pulsating wave are arranged, so when the powder material is sprayed from each of the plurality of injection holes, A certain rectifying effect is obtained in the airflow.

 This makes it difficult for the powder material to adhere due to the relationship with gravity, and the powder is uniformly applied to the lower surface of the upper punch.

 In the powder material coating apparatus according to claim 34, the powder material coating apparatus for the lower punch, which constitutes the powder material coating apparatus, is provided at a position in the forward direction with respect to the rotation direction of the rotary table. Since the powder coating device for the punch is connected, the rotation direction of the rotary table and the powder material coating device for the lower punch are supplied to the powder material coating device for the upper punch. Since the direction of the flow of the powder material mixed with the air is the same, the powder material can be applied to the lower surface of the upper punch with low resistance and in a quiet state.

 In the external lubricating tableting machine according to claim 35, for example, at a predetermined position (lubricant spraying point) of a conventional tableting machine such as a one-shot tableting machine, In a simple operation of fixedly attaching the powder material application device described in any of 3 above, if a lubricant is used as the powder material, no sticking occurs on the punch and die. In addition, continuous tableting becomes possible without causing tableting troubles (laminating, caving, sticking, etc.), thereby enabling production of external lubricating tablets on a production basis. A lubricating tablet press can be provided on the market.

 In addition, when a surface modifier is used as a powder, the surface modifier can be uniformly applied to a punch and a die. Provide tablets to the market with an external lubricating tablet machine that can manufacture tablets using a uniformly applied punch and that can manufacture tablets with a surface modifier uniformly applied to the tablet surface. be able to.

Claims

The scope of the claims  1. According to a plurality of compression molding of a molding material, a powder material application method of sequentially applying a powder material to the surfaces of a plurality of upper punches and a plurality of lower punches,  The powder material dispersed in the air current of the air pulsating wave is directly sprayed on the upper surface of the lower punch inserted to a predetermined position in the inner portion of the lower punch, so that powder is applied to the upper surface of the lower punch and the inner peripheral wall surface of the lower punch. While applying body material,  A method of applying a powder material, wherein a powder material dispersed in an air current of an air pulsating wave is applied to a lower surface of an upper punch which does not form a pair with the lower punch under an upward air flow from below. 2. A method of applying a powder material, wherein the powder material is sequentially applied to a plurality of dies for compression molding the molding material, and a surface of each of a plurality of upper punches and a plurality of lower punches,  The powder material is continuously supplied to the upper surface of the lower punch and the inner peripheral wall surface of the die, and then to the upper punch which does not form a pair with the lower punch,  By directly blowing the powder dispersed in the air current of the air pulsating wave onto the upper surface of the lower punch inserted into the mortar to a predetermined position, the powder is applied to the upper surface of the lower punch and the inner peripheral wall surface of the mortar. Apply the material,  Next, a powder material is applied to the lower surface of the upper punch, which is not paired with the lower punch, under an airflow from below to above.  3. On the lower surface of the upper punch, which does not form a pair with the lower punch, an upward airflow is generated from below by driving a suction means having a suction port at a position above the lower surface of the upper punch. The method for applying a powder material according to claim 1 or 2, wherein the powder material is sucked and removed by the suction means.  4. Among the powder materials applied to the upper surface of the lower punch and the inner peripheral wall surface, extra powder material for the upper surface of the lower punch and the inner peripheral wall surface is specified in The place where the powder material dispersed in the air current of the air pulsation wave is directly blown onto the upper surface of the lower punch inserted up to the position, where the powder material is sucked and removed in a place where conduction does not occur. 3. The method for applying a powder material according to item 1. 5. The powder material according to any one of claims 1 to 4, wherein the predetermined position on the upper surface of the lower punch is a position where the upper surface of the lower punch is the lowest in the die. Coating method. 6. A plurality of dies, a plurality of upper punches and a plurality of lower punches provided to correspond to each of the plurality of statements,  Sequentially applying a powder material to the plurality of dies, the plurality of upper punches, and the plurality of lower punches;  Using a mortar coated with the powder material, an upper punch coated with the powder material, and a lower punch coated with the powder material to sequentially compression-mold the molding material, A step of sequentially applying a powder material to the plurality of dies, the plurality of upper punches and the plurality of lower punches,  By directly blowing a powder dispersed in the air current of the air pulsating wave onto the upper surface of the lower punch inserted into the mortar to a predetermined position, the powder is applied to the upper surface of the lower punch and the inner peripheral wall of the lower punch. While applying the material,  A tablet manufacturing method, wherein a powder material dispersed in an air current of an air pulsating wave is applied to a lower surface of an upper punch which does not form a pair with the lower punch, under an air current flowing upward from below. 7. A plurality of statements, comprising a plurality of upper punches and a plurality of lower punches provided corresponding to each of the plurality of dies,  A step of sequentially applying a powder material to the plurality of upper punches and the lower punches;  Using a mortar coated with the powder material, an upper punch coated with the powder material, and a lower punch coated with the powder material to sequentially compression-mold the molding material, A step of sequentially applying a powder material to the plurality of dies, the plurality of upper punches and the plurality of lower punches,  The powder material is continuously supplied to the upper surface of the lower punch and the inner peripheral wall surface, and then to the upper punch which does not form a pair with the lower punch,  The powder material dispersed in the air current of the air pulsating wave is directly sprayed on the upper surface of the lower punch inserted to a predetermined position in the inner portion of the lower punch, so that powder is applied to the upper surface of the lower punch and the inner peripheral wall surface of the lower punch. While applying body material,  A tablet manufacturing method, wherein a powder material dispersed in an air current of an air pulsating wave is applied to a lower surface of an upper punch which does not form a pair with the lower punch, under an air current flowing upward from below. 8. On the lower surface of the upper punch, which does not form a pair with the lower punch, the airflow from the bottom to the top The method according to claim 6 or claim 7, wherein the suction means is generated by driving a suction bow I means having a suction port at a position above the lower surface of the upper punch, and excess powder material is suctioned and removed by the suction means. Of manufacturing tablets.  9. Among the powder materials applied to the upper surface of the lower punch and the inner peripheral wall surface of the die, extra powder material for the upper surface of the lower punch and the inner peripheral wall surface is specified in the word. The place where the powder material dispersed in the air current of the air pulsation wave is directly blown onto the upper surface of the lower punch inserted up to the position, where the conductive material is sucked and removed in a place that does not conduct electricity. The method for producing a tablet according to the above.  10. The tablet manufacturing method according to any one of claims 6 to 9, wherein the predetermined position in the die on the upper surface of the lower punch is a position where the upper surface of the lower punch is the lowest in the word. .  1 1. A plurality of said upper punches and a plurality of lower punches are provided, and at a molding material filling point, the molding material is sequentially filled into a die into which the lower punch has been inserted to a predetermined position, Then, at the compression point, the molding material filled in the die is provided on a rotary table of a continuous tableting machine for producing tablets by compressing and molding with a pair of upper and lower punches. A powder material application device for an upper punch, which applies a powder material to a lower surface of a plurality of upper punches that are configured to rotate in synchronization with the plurality of said punches,  It is provided below the lower surface of the plurality of upper punches,  Provided at a front part of the molding material filling point, and  The lower punch to be the set is provided at a position different from the powder material application point for the lower punch for applying the powder material to the inner peripheral wall surface of the die and the upper surface of the lower punch inserted to a predetermined position, A plurality of upper punches that are provided so as to be curved along the rotation trajectory of the plurality of upper punches and that sequentially move and receive the plurality of upper punches;  The bottom surface of the upper punch receiving groove is provided along the rotation trajectory of the plurality of upper punches, and the lower surface of the plurality of upper punches moving in the upper punch receiving groove is dispersed in the air current of the air pulsating wave. A powder material application device for an upper punch, comprising: a slit portion for spraying the powder material. 1 2. A first sucker I means is provided above the slit portion,  The first suction means has a suction port large enough to cover an area of the slit portion, and When viewed in a plan view, the suction port extends along an outer peripheral side of a rotation track of the plurality of upper punches. It has a shape,  When the first suction means is driven, an airflow from the slit to the suction port is generated above the slit due to the shape of the suction port, and the air is uniformly distributed to the slit. The powder material applying device for an upper punch according to claim 11, wherein the supplied powder material is supplied.  13. The powder material for an upper punch according to claim 11, wherein the width of the slit portion is approximately equal to the width of a region of a score line or a mark formed on the tablet. Application 14. The apparatus for applying a powder material for an upper punch according to any one of claims 11 to 13, wherein the slit portion has a zigzag shape.  15. The powder material applying apparatus for an upper punch according to any one of claims 11 to 14, wherein a mesh means having a predetermined hole diameter is provided above the slit portion.  16.In place of the slit portion, on the bottom surface of the upper punch receiving groove, along the rotation path of the plurality of upper punches, on the lower surface of the upper punches moving in the upper punch receiving groove, The powder material applying device for an upper punch according to any one of claims 11 to 15, wherein a plurality of injection holes are arranged, which sprays the powder material dispersed in the air current of the air pulsation wave. 1 7. A plurality of said upper punches and a plurality of lower punches are provided, and at the molding material filling point, the molding material is sequentially filled within the lower punch inserted to a predetermined position. Thereafter, at a compression point, a plurality of words of a continuous tableting machine for producing tablets by compressing and molding the molding material filled in the die with a pair of dies, an upper punch and a lower punch, are used. A powder material is applied to an upper surface of a plurality of lower punches fixedly provided on a rotating table provided in the direction and rotated in synchronization with a plurality of dies provided on the rotating table. A powder material coating device for a lower punch,  It is provided at the front stage of the molding material filling bottle, and  A powder material application point for the upper punch for applying the powder material to the lower surface of the upper punch forming the pair is provided at a different position from the powder material application point, The words that the lower punch, which is rotating and moving, are inserted to the predetermined position are successively accommodated and dispersed on the upper surface of the lower punch, which is inserted to the predetermined position in the mortar, in the air current of the air pulsating wave. A discharge port for spraying the powder material is provided on a surface facing the rotary table, Powder material coating device for lower punch.  18. The discharge port is provided at a substantially central portion of an upper surface of a lower punch inserted to a predetermined position in a die located immediately below the discharge port so as to face a substantially vertical direction, An apparatus for applying a powder material for a lower punch according to claim 17. , '  19. The lower surface of the surface opposite to the rotary table, after the outlet, is further accommodated in a powder material application device for the lower punch, and the lower punch is sprayed from the outlet. And a second suction means for removing the lower punch and the powder material excessively adhering to the lower punch and the excess powder material on the rotary table. Item 18. An apparatus for applying a powder material for a lower punch according to Item 18.  20. The second suction means is provided in the rotary table, and has a slit-like length long enough to cover each of the plurality of rotations and the periphery thereof so as to be substantially orthogonal to the plurality of rotation orbits. The powder material for a lower punch according to claim 19, further comprising a suction port. 21. The suction port of the second suction means is provided at least at a position distant from each of a plurality of diameters provided on the rotary table from a position where the discharge port is provided. 22. The powder material application device for lower punches according to claim 20, wherein 22. A molding material adhering to the front surface of the discharge port on the surface facing the rotary table, the upper surface of the plurality of lower punches, the plurality of inner walls and the periphery of the plurality of dies. The slits are provided so as to be sequentially removed, and have a width that is substantially perpendicular to the plurality of rotation orbits and that has a width substantially equal to or slightly larger than the diameter of each of the plurality of rotation orbits. The powder material application device for lower punches according to any one of claims 17 to 21, further comprising a third suction means having a molding material suction port. 23. A continuous tableting machine, wherein a plurality of said powder material coating apparatuses are fixedly provided at predetermined positions on a rotary table provided in a circumferential direction,  A powder material application device for the lower punch, and a powder material application device for the lower punch, the powder for the upper punch connected to a position opposite to the rotation direction of the rotating table. A material application device, Each of the powder material application device for the lower punch and the powder material application device for the upper punch is opposed to the rotary table so that the rotary table can slide. The surface on the side to be made has a smooth surface,  An application device for the powder material for the lower punch,  On its outer surface, there is provided a powder material inlet for feeding powder material such as lubricant mixed with air pulsation wave,  The powder material fed into the powder material introduction port passes through a through hole provided so as to penetrate the powder material coating device for the lower punch, and the powder material on the side facing the rotary table. Sent to the surface,  The powder material discharged together with air from a discharge port on the surface of the through hole facing the rotary table is stored in the powder material application device for the lower punch. Surface and the upper surface of the lower punch inserted to the specified depth within  The powder material coating device for the upper punch,  A long slit portion curved so as to penetrate the powder material application device for the upper punch from the surface on the side opposite to the rotary table, and to be curved along the rotation trajectory of the plurality of upper punches;  The upper punch is provided on the outer surface side of the powder material application device for the upper punch so as to include the area of the slit portion, and is provided for accommodating the plurality of upper punches rotating and moving. With a punch storage groove,  The plurality of upper punches are provided so as to be curved along the rotation trajectory, and the width of the upper punch receiving groove is a width corresponding to the outer diameter of each of the plurality of upper punches, or a slightly larger width. It has been  The lower surface of the upper punch housed in the upper punch housing groove is easily exposed to the powder material supplied from the slit portion,  A powder material is hardly attached to a side circumference of the upper punch accommodated in the upper punch accommodation groove, and From the discharge port on the surface side of the through-hole of the powder material for the lower punch facing the rotary table, the powder material is accommodated together with air in the powder material application device for the lower punch. The powder material sprayed on the peripheral surface and the upper surface of the lower punch inserted into the die to a predetermined depth is further supplied to a slit provided in the powder material application device for the upper punch. It is becoming a powder material coating device.  24. A first suction means is further provided above the slit portion of the powder material application device for the upper punch,  The first suction means has a suction port large enough to cover an area of the slit portion, and  The suction port, when viewed in a plan view, has a shape along the outer peripheral side of the rotation track of the plurality of upper punches,  When the first suction means is driven, an airflow from the slit to the suction port is generated above the slit due to the shape of the suction port, and the air is uniformly distributed to the slit. The powder material application device according to claim 23, wherein the supplied powder material is supplied.  25. The width of the slit portion of the powder material application device for the upper punch is made to substantially match the width of the area of the score line or the mark formed on the tablet. 24. The powder material coating device according to 24.  26. The powder material applying device according to any one of claims 23 to 25, wherein a shape of a slit portion of the powder material applying device for the upper punch is a zigzag shape. 27. The powder material according to any one of claims 23 to 26, wherein a mesh means having a predetermined hole diameter is provided above the slit portion of the powder material application device for the upper punch. Paint 28. The outlet of the powder material application device for the lower punch is approximately at the center of the upper surface of the lower punch inserted into the die located immediately below the outlet to a predetermined position. The powder material coating device according to any one of claims 23 to 27, wherein the powder material coating device is provided so as to face in a vertical direction.  29. The lower punch, which is housed in the main body through the discharge port of the through-hole, is sprayed on the lower punch on the rotation direction side of the rotary table of the powder material application device for the lower punch, 29. A powder material adhering extra to the punch and the die, and a second suction means for removing extra powder material on the rotary table, are further provided. The powder material coating device according to any one of the above. 30. The second suction means includes a plurality of rotary gauges provided on the rotary table. 30. The powder material applying apparatus according to claim 29, further comprising a slit-shaped suction port long enough to cover each of the plurality of dies and the periphery thereof so as to be orthogonal to the road. 31. The suction port of the second suction means is provided at least at a position apart from a diameter of each of a plurality of dies provided on the rotary table from a position where the discharge port is provided. 30. The apparatus for applying a powder material for a lower punch according to claim 30. 32. On the surface of the surface of the powder material application device for the lower punch facing the rotary table, at the front stage of the discharge port, further, the upper surfaces of the plurality of lower punches, the plurality of dies, and the plurality of It is provided for sequentially removing the molding material adhering to the periphery of the mortar, so as to be substantially perpendicular to the rotational trajectory of the plurality of mortars, and substantially coincide with the diameter of each of the plurality of mortars. The powder material according to any one of claims 23 to 31, wherein a third suction means having a slit-shaped molding material suction port having a width slightly larger than the width of the powder material is provided. 3 3. Instead of the slit part of the powder material application device for the upper punch, move in the upper punch receiving groove along the rotation path of the plurality of upper punches on the bottom surface of the upper punch receiving groove. The powder material according to any one of claims 23 to 32, wherein a plurality of injection holes are arranged on a lower surface of the plurality of upper punches to spray a powder material dispersed in an air current of an air pulsating wave. Application 3 4. The powder material application device for the upper punch is connected to the powder material application device for the lower punch at a position in a forward direction, not in a direction opposite to the rotation direction of the rotary table. The powder material coating device according to any one of claims 23 to 33. 35. The continuous tableting machine according to any one of claims 11 to 34, wherein the rotary table is rotatable at a predetermined position on a rotary table provided in a circumferential direction. An external lubricating tableting machine fixedly equipped with the powder material application device described above.