CN111516212A - A soft capsule machine and its injection system - Google Patents

Abstract

A soft capsule machine and an injection system thereof, the soft capsule machine comprises a rack and an electric control system, a feeding system, an injection system and a mold installed on the rack, the electric control system is respectively A feeding system, an injection system and a mold are connected, the feeding system is connected with the injection system, the injection system is set corresponding to the mold, and the injection system includes a spray body and is arranged in the spray body The material and liquid flow channel, the spray body is connected with the distribution plate of the feeding system, and is located above the middle of a pair of molds of the soft capsule machine, the spray body includes a plurality of spray holes, the multiple Each nozzle hole communicates with the distribution plate through the material liquid flow channel, the plurality of nozzle holes includes a plurality of first nozzle holes and a plurality of second nozzle holes, and the plurality of first nozzle holes are connected to the A plurality of second spray holes are arranged in a staggered sequence and correspond to a row of mold cavities of the soft capsule machine one by one.

Description

A soft capsule machine and its injection system

technical field

The invention relates to a soft capsule machine, in particular to a soft capsule machine and an injection system thereof.

Background technique

For soft capsule equipment, different customers will customize different spray bodies and molds. In order to increase the number of cavities (increase the production volume) and reduce the net glue rate (to save costs), the arrangement of the cavities is generally staggered, and the staggered two rows of cavities are called a row of mold cavities. In the traditional spray body, the nozzle holes are arranged in a line. When working, the nozzle holes are staggered for injection. By controlling the corner of the mold and the injection time of the nozzle holes, the material is injected into the designated cavity. The left and right plungers of the feed pump run once each, so that the spray body can be injected twice as a cycle, that is, a row of staggered mold cavities can be completely injected in one cycle. Among them, the mold cavities are staggered on the roller mold, similar to the honeycomb structure, and there is a gap of 1.5-2mm between each mold cavity. The shape of the cavity cuts the gelatin film, and glues it together by the heat of the spray body, and the feeding system injects the material liquid between the gelatin films to form a soft capsule. Due to the gap between the cavities, after the gelatin film is cut off by the cavity, a mesh-like gelatin waste formed by the cavity gap will be left, which is called mesh glue. The ratio of the area of the mesh glue to the area of the gelatin film is called the mesh glue ratio.

The main component in the soft capsule machine responsible for injecting the content into the soft capsule is the spray body. Generally speaking, the cavities on the mold are staggered, which can effectively increase the number of arrangements and reduce the net glue rate. Each group of staggered cavities is called a row. The material liquid enters the feed pump through the hopper, and the staggered movement of the plunger and the reversing plate realizes the two actions of sucking material from the hopper and conveying the material liquid to the spray body. The nozzle holes on the spray body are arranged in a straight line. Through the holes and grooves on the distributor plate, the plunger and the nozzle holes of the spray body are in a one-to-one correspondence. A staggered row of cavities for a body injection mold. The nozzle holes on the spray body work in a staggered manner, that is, when the unilateral plunger is injected, the nozzle holes on the nozzle body are injected every other nozzle hole, so only half of the nozzle holes can work at the same time. When the cavity is rotated to the staggered position, the remaining nozzle holes work again, which reduces the work efficiency.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to provide a soft capsule machine and an injection system thereof, which can realize the injection of all injection holes of the injection body each time, and complete the injection of the entire row of staggered mold cavities at one time.

In order to achieve the above purpose, the present invention provides an injection system of a soft capsule machine, which is installed on the frame of the soft capsule machine and connected to the feeding system of the soft capsule machine, and the injection system includes a spray body And the material liquid flow channel arranged in the spray body, the spray body is connected with the dividing plate of the feeding system, and is located above the middle of the two molds of the soft capsule machine, and the spray body includes many a plurality of spray holes, the plurality of spray holes are respectively communicated with the distribution plate through the material-liquid flow channel, wherein the spray holes include a plurality of first spray holes and a plurality of second spray holes, the plurality of spray holes The first spray holes and the plurality of second spray holes are arranged in a staggered sequence, and correspond to a row of mold cavities of the soft capsule machine one by one.

The above injection system, wherein the plurality of first injection holes are located on a first straight line, the plurality of second injection holes are located on a second straight line, and the first straight line is parallel to the second straight line .

In the above injection system, the angle between the first injection hole and the adjacent second injection hole is equal to the angle between the adjacent cavities of the one row of mold cavities.

The above-mentioned injection system, wherein the cross section of the spray body is a left-right symmetrical cone-like shape, the material liquid flow channel is located at the center of the cone-like shape, and the left and right sides of the cone-like shape are located on the left and right sides. The side is a symmetrical arc line, and the radian of the arc line is adapted to the mold of the soft capsule machine.

In the above-mentioned injection system, the injection channels of the split plate communicate with each other from left to right, and the first injection holes and the second injection holes communicate with the injection channels at the same time.

In the above injection system, wherein the single-sided plunger of the feed pump of the feed system simultaneously injects the row of mold cavities through the plurality of first injection holes and the plurality of second injection holes at a time.

In order to better achieve the above purpose, the present invention also provides a soft capsule machine, comprising a frame and an electric control system, a feeding system, an injection system and a mold installed on the frame, the electric control system They are respectively connected with the feeding system, the injection system and the mold, the feeding system is connected with the injection system, and the injection system is set corresponding to the mold, wherein the injection system is the above-mentioned injection system. Injection system.

The technical effect of the present invention is:

1) The nozzle holes of the spray body are staggered, and the unilateral plunger of the feed pump can inject all the cavities of the entire row of the mold;

2) The nozzle holes of the spray body are staggered, and the speed of the original feed pump can be maintained, which can double the speed of the mold and increase the production capacity of the equipment;

3) At the same speed, the wear of the feed pump is reduced and the service life of the feed pump is improved.

The present invention is described in detail below with reference to the accompanying drawings and specific embodiments, but is not intended to limit the present invention.

Description of drawings

1 is a schematic structural diagram of a soft capsule machine according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a spray body according to an embodiment of the present invention;

3 is a schematic cross-sectional view of a spray body according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of the working principle of an embodiment of the present invention.

where the reference number

1 rack

2 Electronic control system

3 feeding system

31 Hopper

32 Feed Pump

4 Injection system

41 spray body

42 Material flow channel

43 First nozzle

44 Second nozzle

5 molds

51 First cavity

52 Second cavity

6 Lifting device

7 Pelletizer

8 gelatin boxes

9 Pull the net shaft

10 head

11 Rubber wheels

12 Top roller system

13 Oil rolling system

14 Conveyor

15 Feed liquid

16 Gelatin film

Detailed ways

Below in conjunction with accompanying drawing, structure principle and working principle of the present invention are described in detail:

Referring to FIG. 1, FIG. 1 is a schematic structural diagram of a soft capsule machine according to an embodiment of the present invention. The soft capsule machine of the present invention includes a frame 1 and an electric control system 2, a feeding system 3, an injection system 4 and a mold 5 installed on the frame 1. The electric control system 2 is respectively connected with the feeding system 5. The material system 3 , the injection system 4 are connected with the mold 5 , the material supply system 3 is connected with the injection system 4 , and the injection system 4 is arranged corresponding to the mold 5 . The feeding system 3 includes a hopper 31, which is used to hold the contents of the pressed soft capsules. It can be an open hopper 31, which has functions of heat preservation, stirring and liquid level detection. The circulating hopper 31 can also be customized, which can be adapted to special Material compression; feeding pump, different feeding pumps can be selected according to the different characteristics of the contents, such as peristaltic pump, diaphragm pump or rotor pump. The materials corresponding to the three pumps are oil, common traditional Chinese medicine and very viscous material. The peristaltic pump is relatively hygienic, the material is always inside the pipeline, it is not easy to be polluted, and the price is low, but the tube is easily damaged, and consumables will be produced. The material of the diaphragm pump will pass through the diaphragm, which is relatively cheap but noisy. The rotor pump material will pass through the rotor, and the price is higher. Air pressure feeding can also be used, which is generally only suitable for oil; feeding pump 32: used to quantitatively provide the content, and can be customized according to the characteristics of the material, such as a pump for producing paintballs, lecithin and other special materials and loadings. The soft capsule machine also includes a lifting device 6 for loading the spray body 41, which can realize the lifting function of the spray body 41, and realize the switch control of the spray through the switch combination; the machine head 10 is loaded with two mold shafts, and the inside contains Multiple sets of gear transmission can realize the functions of mold 5 synchronization, mold 5 alignment, etc.; pill ejector 7: including pill-discharging shaft and brush, the pill-discharging shaft peels off the soft capsule on the mesh glue, and the brush puts the mold 5 on the The soft capsule is peeled off; the mesh shaft 9 is pulled to stretch the mesh glue downward, which is convenient for the capsule to be peeled off from the mesh glue, and can drive the rubber to maintain elasticity at the same time; the gelatin box 8 is used to hold the gelatin liquid, with heating and liquid level Detection, to ensure the height and fluidity of the glue, the glue plate can adjust the thickness of the rubber; the rubber wheel 11, used for the spread of the rubber, is located under the gelatin box 8, and can be refrigerated, so that the gelatin is rapidly cooled to form a certain toughness. The gelatin film 16; the glue roller system 12 is used for peeling off the gelatin film 16 from the rubber roller 11 and conveyed to the designated position; the oil roller system 13 is evenly applied on the two surfaces of the gelatin film 16 The quantitative lubricating oil is evenly applied; Machine 14, which transports the pressed soft capsules to the designated position, generally can be reversed; lubrication system, provides lubrication of the machine head 10, lubrication of the feed pump 32, lubrication of the rubber (digital adjustment); refrigeration system, cooling the rubber wheel 11 , to cool the mold 5; the heating system generally includes the heating of the spray body 41, the heating of the hopper 31 and the heating of the gelatin box 8. In addition to electric heating, the spray body 41 can also be heated by a water bath. The water bath heating method is suitable for long-term pressing of a product, with good stability, but the heating and cooling speed is slow, which is not suitable for the debugging process of new products; the air system, the mold 5 is pressurized, the gelatin box 8 liquid level control, and the pressure of the thermal insulation plastic barrel The equal pressure is provided; the pill conveying fan transports the pressed soft capsules from the conveyor 14 to the inside of the drying tumbler. The main working principle of the soft capsule machine is that the staggered cavities are processed on the mold 5. The plunger of the feeding pump 32 is a left-right symmetrical structure. The spray body 41 has two feeding actions, and the plungers on the left and right sides inject the contents into the staggered mold cavities respectively. Through the synchronization device of the mechanical structure, the synchronization and relative independence of all actions are completed.

Referring to FIG. 2, FIG. 2 is a schematic diagram of the structure of a spray body according to an embodiment of the present invention. The injection system 4 of the present invention is installed on the frame 1 of the soft capsule machine and connected to the feeding system 3 of the soft capsule machine. The injection system 4 includes a spray body 41 and a The material liquid flow channel 42 in 41, the spray body 41 is connected with the dividing plate of the feeding system 3, and is located above the middle of the two molds 5 of the soft capsule machine, and is separated from the mold 5 by one layer Gelatin film 16, the spray body 41 includes a plurality of spray holes, the plurality of spray holes communicate with the distribution plate through the material liquid flow channel 42 respectively, and the spray holes include a plurality of first spray holes 43 and a plurality of second orifices 44, the plurality of first orifices 43 and the plurality of second orifices 44 are staggered in sequence, and correspond to the cavities of a row of molds 5 of the soft capsule machine one-to-one respectively , that is, the number of injection holes is equal to the number of cavities in one row of mold 5 . The staggered first nozzle holes 43 and second nozzle holes 44 correspond to the plungers on the left and right sides of the feed pump 32 respectively, so the maximum number of nozzle holes is equal to the number of single-sided plungers, not the sum of the number of left and right plungers. Wherein, the jetting flow channels of the distribution plate communicate with each other from left to right, and the first jetting holes 43 and the second jetting holes 44 communicate with the jetting flow channels at the same time, so that the jetting holes of the spray body 41 can work at the same time. The single-sided plunger of the feeding pump 32 of the feeding system 3 simultaneously injects the entire cavity of the row of molds 5 through the plurality of first injection holes 43 and the plurality of second injection holes 44 at a time.

The plurality of first spray holes 43 are located on a first straight line, the plurality of second spray holes 44 are located on a second straight line, and the first straight line is parallel to the second straight line. The included angle between the first spray hole 43 and the adjacent second spray hole 44 is equal to the included angle between the adjacent cavities of the one row of mold 5 cavities.

Referring to FIG. 3 , FIG. 3 is a schematic cross-sectional view of a spray body according to an embodiment of the present invention. The cross section of the spray body 41 is a symmetrical cone-like shape, the material liquid flow channel 42 is located in the center of the cone-like shape, and the left and right sides of the cone-like shape are symmetrical arcs. line, the arc of the arc line is adapted to the mold 5 of the soft capsule machine.

Referring to FIG. 4, FIG. 4 is a schematic diagram of the working principle of an embodiment of the present invention. The cavities on the mold 5 are staggered, and the first cavity 51 of the mold 5 and the second cavity 52 of the mold 5 shown in the figure represent staggered cavities. The nozzle holes on the spray body 41 correspond to the cavity on the mold 5 one-to-one, and the first nozzle holes 43 and the second nozzle holes 44 are staggered nozzle holes. The material liquid 15 is injected from the material liquid flow channel 42 in the middle of the spray body 41 into the gelatin film 16 on the cavity of the mold 5 through the spray hole, and a complete soft capsule is formed by the heating of the spray body 41 . During operation, the first nozzle hole 43 and the second nozzle hole 44 on the spray body 41 work at the same time, injecting into the first cavity 51 of the mold 5 and the second cavity 52 of the mold 5 at the same time, forming a whole row of soft capsules . If the feed pump 32 is in the form of two plungers injecting into one cavity, the injection holes may be staggered in groups of two, and if one plunger corresponds to one cavity, the injection holes are staggered one by one. The staggered angle difference corresponds to different cavity arrangements of different molds 5 .

The invention adopts the staggered arrangement of the nozzle holes on the spray body, and the content flow channels on the corresponding distribution plate are connected left and right, so that the nozzle holes on the spray body can work at the same time, and all of them can be used at one time. All the cavities do not need to wait for the mold to rotate and then inject again, which improves the utilization rate of the spray body, realizes that the working efficiency of the feeding pump is doubled under the same rotation speed, and the operating speed of the feeding pump can be increased. It is reduced to half of the original, which reduces the wear and vibration of the feed pump and improves the service life of the feed pump. Since the rotation speed of the feed pump is reduced to half of the original, the number of teeth of the die gear between it and the machine head can also be half of the original. In addition, in order to meet the wider use requirements, the number of unilateral plungers of the feed pump can be increased, and the switch plate above the hopper and the spray body can be adjusted to increase the length of the hopper and increase the number of feed holes on the switch plate.

Of course, the present invention can also have other various embodiments, without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and modifications according to the present invention, but these corresponding Changes and deformations should belong to the protection scope of the appended claims of the present invention.

Claims (7)

1. the injection system of a soft capsule machine is installed on the frame of the soft capsule machine, and is connected with the feeding system of the soft capsule machine, and the injection system comprises a spray body and is arranged in the spray body The material and liquid flow channel, the spray body is connected with the dividing plate of the feeding system, and is located above the middle of the two molds of the soft capsule machine, the spray body includes a plurality of spray holes, the multiple Each orifice is communicated with the distribution plate through the material-liquid flow channel, and is characterized in that, the orifice includes a plurality of first orifices and a plurality of second orifices, and the plurality of first orifices are connected to the The plurality of second injection holes are arranged in a staggered sequence and correspond to a row of mold cavities of the soft capsule machine one by one. 2 . The injection system according to claim 1 , wherein the plurality of first injection holes are located on a first straight line, the plurality of second injection holes are located on a second straight line, and the first injection holes are located on a second straight line. 3 . A straight line is parallel to the second straight line. 3 . The injection system according to claim 1 or 2 , wherein the angle between the first injection hole and the adjacent second injection hole is the same as that of the row of mold cavities. 4 . The included angles between adjacent cavities are equal. 4. The injection system according to claim 1 or 2, wherein the cross section of the spray body is a left-right symmetrical cone-like shape, and the material liquid flow channel is located at the center of the cone-like shape, so that the The left side and the right side of the cone-like shape are symmetrical arc lines, and the radian of the arc line is adapted to the mold of the soft capsule machine. 5. The injection system according to claim 1 or 2, wherein the injection channels of the split plate communicate with each other from left to right, and the first injection holes and the second injection holes communicate with the injection channels at the same time. 6. The injection system according to claim 1 or 2, wherein the unilateral plunger of the feed pump of the feed system passes through each of the plurality of first injection holes and the plurality of second injection holes. The row of mold cavities is injected simultaneously. 7. A soft capsule machine, comprising a rack and an electric control system, a feeding system, an injection system and a mold installed on the rack, and the electric control system is respectively associated with the feeding system, the injection system It is connected with the mold, the feeding system is connected with the injection system, the injection system is set corresponding to the mold, and it is characterized in that the injection system is any one of the above claims 1-6 described injection system.

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