CN100480032C - Single slice waste removing device of high-speed ration type preforming machine and operating procedure thereof - Google Patents

Abstract

The invention relates to a single-chip rejecting device of a high-speed rotary tablet press and a working method thereof. The device includes a central control unit, a tablet weight detection mechanism for the central control unit to record in real time the main pressure values of each auxiliary die of the tablet press, and a tablet weight detection mechanism arranged under the turntable of the tablet press for generating the Alignment signal output disc combination and pneumatic reject system associated with the main pressing action; it also includes the leading disc combination set on the main motor of the tablet press to generate a compensation pulse signal corresponding to the angular velocity of the output shaft of the main motor; the central The control unit judges whether to start the waste rejection program according to the pressure values of each main pressure; when starting the waste rejection program, the central control unit calculates that the punches with waste tablets run with the turntable of the tablet press through the compensation pulse signal and the alignment signal to the point in time at the nozzle hole of the pneumatic reject system and at which point the pneumatic reject system is triggered. The device has high rejection accuracy and good adaptability.

Description

Single-chip rejection device and working method of high-speed rotary tablet press

technical field

The invention relates to a single-chip rejecting device of a high-speed rotary tablet press used in the pharmaceutical machinery industry and its working method, in particular to a pharmaceutical device for removing waste tablets during the tablet pressing process of the tablet press. Machinery and its working methods.

Background technique

The working principle of the high-speed rotary tablet press to press powdery and granular raw materials into tablets is that the main motor drives the turntable to rotate through the transmission mechanism (that is, the pulley and the worm gear pair). Under the cooperation of the upper and lower guide rails, the reciprocating motion of the upper and lower punches is controlled, and the cycle action is completed: filling material-quantitative-pre-pressing-main pressing-discharging.

Regarding the high-speed rotary tablet press, see: a kind of rotary tablet press disclosed in Chinese patent document CN1524684 that is used to produce tablets from tablet raw materials; Method; a rotary tablet press disclosed in Chinese patent document CN1545445A; a tablet press disclosed in Chinese patent document CN1511084A; a rotary press with a multifunctional press mechanism disclosed in Chinese patent document CN2454123Y; disclosed in Chinese patent document CN1543398A A rotary powder compression molding machine.

In the tablet production process of high-speed rotary tablet press, the main pressure value is too large or too small or the surface quality of the tablet is poor due to reasons such as inappropriate material particle size, uneven filling, and die adhesion, resulting in Some compressed-formed tablets were rejected, ie, waste tablets were formed. Therefore, the waste tablets must be removed through the single-tablet rejection system from the completion of the "main pressure" to the "tablet discharge" working condition section of the tablet, and then the tablet discharge stop lever of the tablet press will guide the qualified tablets into the qualified product channel.

At present, the single-tablet rejection system used in high-speed rotary tablet presses at home and abroad usually consists of a combination of output disks, a tablet weight detection mechanism connected to the force-applying mechanism of the tablet press, and a waste rejection actuator.

There are following deficiencies in the above-mentioned prior art monolithic rejection mode and structure:

1. The rejection rate is low. In the prior art, the single-chip rejection pulse signal with the number of dies as the input variable has low resolution, which limits its applicable maximum tablet production speed (the single-discharge model does not exceed 140,000 tablets per hour), and the single-chip The structure of the hole nozzle and the control of the single electromagnetic reversing valve will cause the movement state of the waste film to be unstable before entering the recycling channel, which cannot meet the higher requirements of single-chip rejection and continuous two-piece or multi-piece rejection, resulting in waste The probability of mixing in qualified products is high, which affects the quality of tablets; in addition, more qualified tablets are entrained into the waste tablet recovery channel by the rejecting action, which affects production costs and efficiency.

2. Poor adaptability. The existing single-chip reject system with the number of dies as the input variable cannot dynamically adjust the width of the single-chip reject pulse signal when the production speed changes, especially in the process of continuous speed regulation of the turntable. The pulse width between the two dies cannot be accurately calculated, resulting in a large error in the positioning of waste pieces, that is, the control parameters of single piece rejection cannot automatically adapt to changes in production speed and must be recalibrated.

Invention content:

The object of the present invention is to provide a high-speed rotary tablet press with high rejecting accuracy and a single-chip rejecting device whose control parameters can automatically adapt to changes in production speed and its working method.

In order to achieve the above object, the present invention provides a single-chip rejection device of a high-speed rotary tablet press, comprising:

central control unit;

The tablet weight detection mechanism is used for the central control unit to record the main pressure value of each sub-die of the tablet press in real time;

The output disk assembly is arranged under the turntable of the tablet machine, and is used to generate alignment signals associated with the main pressing actions of the auxiliary punches, so that the central control unit can record the pressure values of the main pressing and the auxiliary punches in real time. corresponding relationship;

Pneumatic scrapping system, used to provide power airflow for scrapping scraps under the control of central control unit;

It also includes an advanced disk combination arranged on the main motor of the tablet press, which is used to generate a compensation pulse signal corresponding to the angular velocity of the output shaft of the main motor; the central control unit judges whether to start the reject program according to the pressure values of the main pressure; When starting the waste rejection program, the central control unit calculates the time point when the die with waste tablets moves to the nozzle hole of the pneumatic waste rejection system with the turntable of the tablet machine through the compensation pulse signal and the alignment signal, and at the said time Point-triggered pneumatic scrapping system blows the scrap off the surface of the lower punch and guides it into the scrap recovery channel.

In the above technical solution, the main motor is driven by a program-controlled frequency converter connected with the central control unit; The associated compensation sensor; the compensation code wheel is provided with a plurality of counting holes evenly distributed on a circumference, and the compensation sensor is arranged opposite to the circumference where the counting holes are located, so as to generate the compensation pulse signal when the compensation code wheel rotates ; The central control unit detects the angular velocity of the output shaft of the main motor through the compensation pulse signal, and controls the angular velocity through a program-controlled frequency converter.

In the above technical solution, the output disk combination includes: a counting dial arranged under the turntable of the tablet press and coaxially rotating with the turntable, a starting point sensor and a die number sensor connected to the central control unit; the counting dial is provided with A plurality of counting holes evenly distributed on a circle, the number of counting holes is equal to the number of die pairs of the tablet press; the counting dial is also provided with the same center as the counting holes but different diameters on the circle The starting point hole, and the starting point hole and one of the counting holes are arranged on the same radial line of the concentric circle; the die number sensor is fixedly arranged on one side of the counting dial and is opposite to the circumference where the counting holes are located, so as to The die pulse signal is generated when the counting dial rotates. The starting point sensor is fixedly arranged on one side of the counting dial. The starting point pulse signal corresponding to the turnover frequency; the alignment signal includes the punching die pulse signal and the starting point pulse signal; the central control unit records in real time the correspondence between the main pressure values and the secondary punching dies through the punching die pulse signal and the starting point pulse signal Relationship; the ratio of the frequency of the die pulse signal to the starting point pulse signal is the number of die pairs; the frequency of the compensation pulse signal is at least 20 times the frequency of the die pulse signal.

In the above technical solution, the pneumatic reject system includes an air source processing element, two electromagnetic reversing valves connected to the air source processing element, respectively connected to the output ends of the two electromagnetic reversing valves and set at the output stop Nozzle hole in the rod.

In the above technical solution, a lead-out baffle is provided at the front side of the film-out blocking lever of the tablet press and at the entrance of the waste film channel, which is used to isolate the waste film from qualified products and guide the waste film into the waste product recovery channel; the lead-out baffle The plate includes a curved baffle and a uniaxial connection for fixing the position of the curved baffle.

In the above technical solution, upper and lower eccentric shafts are respectively provided on the supporting block and the machine base of the tablet press; upper and lower main pressure wheels are respectively provided on the upper and lower eccentric shafts, which cooperate with the upper and lower guide rails respectively, To control the relative reciprocating movement of the upper and lower punch rods of each pair of dies; the sheet weight detection mechanism includes: a pressure sensor and a connecting rod arranged at one end of the upper eccentric shaft and connected to the central control unit; the upper and lower eccentric shafts pass through The connecting rods are linked so that the pressure sensor can record the main pressure value of each auxiliary die of the tablet press in real time.

The working method of the single-chip rejecting device of the above-mentioned high-speed rotary tablet press comprises the following steps:

A. When the high-speed rotary tablet press is working normally, the leading disc combination generates a compensation pulse signal corresponding to the angular velocity of the output shaft of the main motor;

B. The central control unit records the main pressure value of each auxiliary die in real time through the sheet weight detection mechanism;

C. The combination of output discs generates alignment signals related to the main pressure of each auxiliary die, so that the central control unit can record the corresponding relationship between the main pressure value and each auxiliary die in real time;

D. The central control unit judges whether the tablets in each auxiliary die are waste tablets according to the main pressure value; when the main pressure value exceeds the preset range, the central control unit judges that the tablet in the corresponding die is waste film and start the reject program; the central control unit calculates the time point when the die with waste film moves to the nozzle hole of the pneumatic reject system with the turntable of the tablet machine through the compensation pulse signal and the alignment signal, and The time point triggers the pneumatic rejecting system to blow the waste sheet away from the surface of the lower punch sheet and guide it into the waste product recovery channel.

In the above technical solution, the central control unit detects the angular velocity of the output shaft of the main motor through the compensation pulse signal generated by the compensation sensor, and controls the angular velocity through the program-controlled frequency converter.

In the above technical solution, the compensation code disc of the leading disc combination rotates coaxially with the output shaft of the main motor, and at the same time the compensation sensor generates a compensation pulse signal; Describe the die pulse signal corresponding to the main pressure action of each secondary die, the starting point sensor generates the starting point pulse signal corresponding to the counting dial turnover frequency; the alignment signal includes the punching die pulse signal and the starting point pulse signal; the central control unit passes the punching die pulse signal signal and the starting point pulse signal, and record the corresponding relationship between each main pressure value and each secondary punch in real time; the frequency of the compensation pulse signal is at least 20 times the frequency of the punch pulse signal.

In the above technical solution, when the central control unit triggers the pneumatic waste rejection system, it will synchronously trigger the electromagnetic reversing valve in the pneumatic waste rejection system to make it work with electricity, and the waste pieces will be blown away by the high-pressure airflow introduced from the air source processing element. The surface of the lower punch sheet, and the waste sheet is guided into the waste recycling channel by the arc baffle.

The "main pressure value" in the present invention refers to the pressure value applied to the formed tablet in the middle mold by the upper and lower main pressure wheels of the force applying mechanism respectively through the punches of the upper and lower dies at the main pressure action station. . The shape of the tablet is determined by the shape of the punch sheet surface of the upper and lower dies.

Compared with the prior art, the present invention has the following obvious advantages: (1) The present invention has a simple and reasonable structure, is easy to manufacture, assemble and disassemble and maintain, and has a good single-chip rejection effect, and can be widely used in various automatic control chips Heavy rotary tablet press; in the present invention, an advanced disc combination is added to accurately calculate the time point when the die with waste tablets moves to the nozzle hole of the pneumatic reject system with the turntable of the tablet press, and can single-chip reject, Continuous two-piece or continuous multi-piece rejection has high rejection accuracy and efficiency; the central control unit detects changes in production speed through the combination of advanced discs and adjusts control parameters, so it has good adaptability. (2) The pneumatic rejecting system of the present invention adopts the rejecting nozzle with a double-hole structure, and the rejecting electromagnetic reversing valve also adopts a double-valve synchronous control method, which can ensure sufficient rejecting gas flow in an instant, and the production speed is highly adaptable. Good stability and improved production efficiency. (3) In the present invention, the arc-shaped baffle of the lead-out baffle is fixed by a single-axis connector, which not only facilitates the adjustment of the opening of the pass-through opening of qualified pieces of different sizes, but also isolates and leads out the discarded waste pieces in time, making it reliable It can smoothly enter the waste recycling channel of the film output device, and can ensure the smooth passage of qualified films. (4) In the present invention, the higher the multiple of the frequency of the compensation pulse signal generated by the compensation sensor relative to the frequency of the die pulse signal, the more accurate the rejection will be, and the higher the reliability of continuous multi-piece rejection will be.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a structural schematic diagram of an advanced disc combination;

Fig. 3 is a structural schematic diagram of the production plate assembly;

Fig. 4 is a schematic diagram of the pneumatic rejecting system;

Fig. 5 is an A-direction view of the rejecting actuator in Fig. 1;

Fig. 6 is a B-direction view of the rejecting actuator in Fig. 5;

Fig. 7 is the K-K sectional view among Fig. 6;

Fig. 8 is the counting dial in Fig. 3 .

In the figure, 1—advanced disc combination, 2—production disc combination, 3—pneumatic reject system, 4—film output stopper, 5—export baffle; 6—compensation code disc, 7—compensation sensor, 8—counting code Disk, 8-1—counting hole, 8-2—starting hole, 9—starting point sensor, 10—die sensor; 11—air source processing element, 12—electromagnetic reversing valve, 13—nozzle hole, 14—turntable, 15—support block, 16—arc baffle, 17—main motor, 18—single shaft connector, 19, 20—upper and lower eccentric shaft, 21, 22—upper and lower main pressure roller, 23, 24—upper , Lower punch, 25—recycling channel for waste products, 26—passage for qualified products, 27—pressure sensor, 28—connecting rod, 29—machine base, 30—middle mold, 31, 32—upper and lower guide rails.

Detailed ways

(Example 1)

As shown in Fig. 1, upper and lower eccentric shafts 19 and 20 are respectively arranged on the base 29 and the support block 15 of the tablet press; upper and lower main pressure wheels 21 and 22 are respectively arranged on the upper and lower eccentric shafts 19 and 20, Cooperating with the upper and lower guide rails 31 and 32 respectively, the upper and lower punch rods 23 and 24 of each pair of dies are controlled to perform relative reciprocating motion, and the tablet is pressed into shape in the middle die 30 .

As shown in Figures 1, 2 and 4, the single-chip rejecting device of the high-speed rotary tablet press of this embodiment includes: a central control unit, a tablet weight detection mechanism, an advanced disc assembly 1 arranged on the main motor 17 of the tablet press, The output tray combination 2 and the pneumatic reject system 3 are arranged under the turntable of the tablet press.

The central control unit is a programmable logic controller PLC.

The sheet weight detection mechanism includes: a pressure sensor 27 and a connecting rod 28 arranged at one end of the upper eccentric shaft 19 and connected to the central control unit; the upper and lower eccentric shafts 19 and 20 are linked through the connecting rod 28 so that the pressure sensor 27 Real-time record the main pressure value of each auxiliary die of the tablet press.

As shown in FIG. 2 , the leading disk assembly 1 includes: a compensation code wheel 6 arranged on the output shaft of the main motor 17 and a compensation sensor 7 arranged on one side of the compensation code wheel 6 and connected to the central control unit. The compensation code disc 6 is provided with a plurality of counting holes evenly distributed on a circumference, and the number of the counting holes is approximately equal to the number of die pairs of the tablet press. For example, the number of die pairs of a tablet press can be 16, 20, 24, 26, 28, 32, 40, 45, 55 and 65, and the number of counting holes of the corresponding compensation code disc 6 can be 16, 20, 23 , 27, 28, 30, 38, 46, 52 and 68. The difference is a maximum of plus or minus 6.

The compensation sensor 7 is arranged opposite to the circumference where the counting holes are located; the compensation sensor 7 is a high-speed metal proximity sensor, which is connected with the central control unit. When the compensation code wheel 6 rotates, the compensation sensor 7 generates the compensation pulse signal when it approaches the counting hole. The main motor 17 is driven by a program-controlled frequency converter connected to the central control unit; the central control unit detects the angular velocity of the output shaft of the main motor 17 through the compensation pulse signal generated by the compensation sensor 7, and controls the angular velocity through the program-controlled frequency converter .

As shown in FIG. 3 , the output disc assembly 2 includes: a counting dial 8 arranged under the turntable 14 of the tablet press and rotating coaxially with the turntable 14 , a starting point sensor 9 and a die number sensor 10 connected to the central control unit. Starting point sensor 9 and die number sensor 10 are all high-speed metal proximity sensors.

As shown in Figure 8, the counting dial 8 is provided with a plurality of counting holes 8-1 evenly distributed on a circumference (in actual production and application, the counting holes 8-1 can be designed with different numbers according to actual needs), and the counting holes The number of 8-1 is equal to the pair number of dies of the tablet press; the counting dial 8 is also provided with a starting point hole 8-2 on a circle with the same center as the counting holes but different diameters, and the starting point hole 8 -2 and one of the counting holes are arranged on the same radial line of the concentric circles. The die number sensor 10 is fixedly arranged on one side of the counting dial 8 and is opposite to the circumference where the counting holes are located. The starting point sensor 9 is fixedly arranged on one side of the counting dial 8, and there is a position where the starting point sensor 9 is opposite to the starting point hole when the counting dial 8 rotates, so as to generate a corresponding starting point pulse signal with the counting dial 8 revolution frequency . The alignment signal includes a die pulse signal and a starting point pulse signal; the central control unit records in real time the corresponding relationship between each main pressure value and each auxiliary punch through the die pulse signal and the starting point pulse signal; the punching die pulse signal and the starting point pulse signal The ratio of the frequency is the number of dies; the frequency of the compensation pulse signal is 39 times the frequency of the die pulse signal (the higher the multiple, the more accurate the rejection).

As shown in Fig. 4, the pneumatic rejecting system 3 includes an air source processing element 11, two electromagnetic reversing valves 12 connected with the air source processing element 11, respectively connected with the output ends of the two electromagnetic reversing valves 12 and arranged at the outlet The nozzle hole 13 on the sheet stop rod 4.

As shown in Fig. 5 , the front side of the film-out blocking lever 4 of the tablet press and the entrance of the waste film channel are provided with a lead-out baffle 5 for isolating the waste film from qualified products and introducing the waste film into the waste product recovery channel 25 .

As shown in Figures 5-6, the lead-out baffle 5 includes an arc-shaped baffle 16 and a single-axis connection piece 18 for fixing the position of the arc-shaped baffle 16 .

As shown in FIG. 7 , the uniaxial connecting piece 18 is convenient for adjusting the opening degree of the fixed arc-shaped baffle 16 to meet the requirements for the passage of qualified pieces of different sizes.

The "main pressure value" in this embodiment refers to the pressure value applied to the formed tablet in the middle mold by the upper and lower main pressure wheels of the force applying mechanism respectively through the upper and lower punches at the main pressure action station.

The working method of the above-mentioned single chip rejecting device of the high-speed rotary tablet press includes: when the high-speed rotary tablet press is in normal operation, the leading disk combination 1 generates a compensation pulse signal corresponding to the angular velocity of the output shaft of the main motor 17; The control unit records the main pressure value of each secondary punch in real time through the sheet weight detection mechanism; the production disk combination 2 generates an alignment signal related to the main pressure of each secondary punch for the central control unit to record the main pressure in real time The corresponding relationship between the value and each auxiliary die; the central control unit judges whether the tablet in each auxiliary die is a waste tablet according to the main pressure value; when the main pressure value exceeds the preset range, the central control unit immediately judges The tablets in the corresponding punching die are waste tablets and start the rejecting program; the central control unit calculates the punching dies with waste tablets through the compensation pulse signal and the alignment signal and moves to the nozzle hole of the pneumatic rejecting system 3 with the turntable of the tablet machine 13, and at this time point, the pneumatic reject system 3 is triggered to blow the waste sheet away from the surface of the lower punch sheet and guide it into the waste recovery channel 25.

The central control unit detects the angular velocity of the output shaft of the main motor 17 through the compensation pulse signal, and controls the angular velocity by the program-controlled frequency converter to dynamically adjust the production speed of the tablet press.

The compensation code disc 6 of the leading disc combination 1 rotates coaxially with the output shaft of the main motor 17, and at the same time the compensation sensor 7 generates a compensation pulse signal; Generate the die pulse signal corresponding to the main pressure action of each auxiliary die, and the starting point sensor 9 generates the starting point pulse signal corresponding to the turnover frequency of the counting dial 8; the alignment signal includes the punching die pulse signal and the starting point pulse signal; the center The control unit records in real time the corresponding relationship between the main pressure values and the auxiliary punches through the die pulse signal and the starting point pulse signal; the frequency of the compensation pulse signal is 39 times the frequency of the die pulse signal (in other embodiments, It can be 20 times, 40 times or 60 times, etc.).

When the central control unit triggers the pneumatic waste rejection system 3, it will synchronously trigger the electromagnetic reversing valve 12 in the pneumatic waste rejection system, so that it can be powered to work at the same time, and the high-pressure airflow introduced from the air source processing element 11 will blow the waste pieces away from the bottom. Punch sheet profile, and the waste sheet is introduced into the waste product recovery channel 25 by the arc baffle plate 16. All the other qualified tablets enter the qualified product channel 26 under the action of the film-out blocking lever 4 .

(Example 2)

On the basis of Embodiment 1, the advanced disk combination 1 of this embodiment can also have the following deformations:

The leading disc assembly 1 includes: a compensation sensor 7 and a compensation code disc 6 arranged on the output shaft of the main motor 17 .

The compensation code wheel 6 is provided with 50 counting holes evenly distributed on a circumference. The number of punches and dies of the tablet press is 55.

The compensation sensor 7 includes an optical signal transmitter fixedly arranged on one side of the compensation code wheel 6 and an optical signal receiver fixedly arranged on the other side of the compensation code wheel 6 and connected to the central control unit. The straight line where the optical signal transmitter and the optical signal receiver are located is perpendicular to the circumference where the counting holes are located, so as to generate the compensation pulse signal when the compensation code wheel 6 rotates; the central control unit detects the main motor through the compensation pulse signal. 17 output the angular velocity of the shaft, and control the angular velocity through a program-controlled frequency converter.

Apparently, the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, rather than limiting the implementation of the present invention. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. And these obvious changes or modifications derived from the spirit of the present invention are still within the protection scope of the present invention.

Claims (10)

1, a kind of monolithic rejection device of Highspeedrotarytabletpress comprises:

Central control unit;

Sheet re-detection mechanism is used for the main pressure pressure value for each secondary punch die of central control unit real time record tablet press machine;

Output dish combination (2) is arranged on tablet press machine turntable (14) below, is used to generate with the master of described each secondary punch die press the contraposition signal that work is associated, for the corresponding relation of described each the main pressure pressure value of central control unit real time record and each secondary punch die;

Pneumatic waste picking system (3) is used for being provided for rejecting the dynamic air-flow of useless sheet under the control of central control unit;

It is characterized in that: also comprise the advance disk combination (1) that is arranged on the tablet press machine main motor (17), be used for generating and the corresponding compensated pulse signal of main motor output shaft angular speed;

Central control unit judges whether to start the inspection rejects program according to described each main pressure pressure value; When starting the inspection rejects program, central control unit goes out to exist useless sheet by described compensated pulse signal and contraposition calculated signals punch die runs to the time point that the nozzle bore (13) of pneumatic waste picking system (3) is located with the tablet press machine turntable, and trigger pneumatic waste picking system (3) at described time point, with blow off low punch sheet profile and import waste recovery passage (25) of described useless sheet.

2, the monolithic rejection device of Highspeedrotarytabletpress according to claim 1 is characterized in that:

Main motor (17) is driven by the program-control frequency converting device that links with central control unit;

Advance disk combination (1) comprising: the compensation sensor (7) that is arranged on the compensation code-disc (6) on main motor (17) output shaft and is fixedly installed on compensation code-disc (6) one sides and links with central control unit; Compensation code-disc (6) is provided with a plurality of counting holes that are uniformly distributed on the circumference, and compensation sensor (7) is oppositely arranged with described each counting hole place circumference, to produce described compensated pulse signal when compensation code-disc (6) rotates; Central control unit is by the angular speed of described compensated pulse signal detection main motor (17) output shaft, and controls described angular speed by program-control frequency converting device.

3, the monolithic rejection device of Highspeedrotarytabletpress according to claim 2 is characterized in that:

Described output dish combination (2) comprising: be arranged on tablet press machine turntable (14) below and with the counting code-disc (8) of the coaxial rotation of turntable (14), with central control unit link play point sensor (9) and punch die is counted sensor (10);

Counting code-disc (8) is provided with a plurality of counting holes (8-1) that are uniformly distributed on the circumference, and the number of counting hole (8-1) equates with the secondary number of the punch die of tablet press machine; Also be provided with on counting code-disc (8) with described each counting hole concentric but the starting point hole (8-2) on the circumference of different-diameter, and starting point hole (8-2) is arranged on the described concentrically ringed same radial line with one of described counting hole;

Punch die is counted sensor (10) and is fixedly installed on counting code-disc one side of (8) and relative with the circumference at described each counting hole place, to generate the punch die pulse signal when counting code-disc (8) rotation;

Play the side that point sensor (9) is fixedly installed on counting code-disc (8), when counting code-disc (8) rotation, exist a position to make point sensor (9) coaxial relative, to generate and the corresponding starting point pulse signal of counting code-disc (8) turnover frequency with described starting point hole;

Described contraposition signal comprises punch die pulse signal and starting point pulse signal; Central control unit is by punch die pulse signal and starting point pulse signal, the corresponding relation of described each the main pressure pressure value of real time record and each secondary punch die; The ratio of the frequency of punch die pulse signal and starting point pulse signal is the secondary number of described punch die; The frequency of described compensated pulse signal is 20 times of punch die pulse signal frequency at least.

4, the monolithic rejection device of Highspeedrotarytabletpress according to claim 1 is characterized in that: two solenoid directional control valves (12) that described pneumatic waste picking system (3) comprises source of the gas treatment element (11), link with source of the gas treatment element (11), link with two solenoid directional control valves (12) output respectively and be arranged on nozzle bore (13) on the slice pin (4).

5, the monolithic rejection device of Highspeedrotarytabletpress according to claim 4, it is characterized in that: the porch of slice pin (4) front side of tablet press machine, useless sheet passage is provided with derives baffle plate (5), is used for useless sheet and certified products isolation and the sheet importing waste recovery passage (25) that will give up; Derive the single shaft connector (18) that baffle plate (5) comprises curved baffle (16) and is used for fixing curved baffle (16) position.

6, according to the monolithic rejection device of claim 1,2,3 or 5 described Highspeedrotarytabletpress, it is characterized in that: on the back-up block (15) of tablet press machine and support (29), be respectively equipped with upper and lower eccentric shaft (19,20); Be respectively equipped with upper and lower main pinch roller (21,22) on the upper and lower eccentric shaft (19,20), with upper and lower guide rail (31,32) mating reaction, do relatively reciprocating motion respectively with the upper and lower jumper bar (23,24) of controlling every secondary punch die;

Described re-detection mechanism comprises: be arranged at eccentric shaft (19) one ends and pressure sensor (27) that links with central control unit and connecting rod (28); Upper and lower eccentric shaft (19,20) is by connecting rod (28) interlock, so that the main pressure pressure value of each secondary punch die of pressure sensor (27) real time record tablet press machine.

7, according to the method for work of the monolithic rejection device of any described Highspeedrotarytabletpress of claim 1-6, comprise the steps:

A, when the Highspeedrotarytabletpress operate as normal, advance disk combination (1) generates the angular speed corresponding compensation pulse signal with main motor (17) output shaft;

B, central control unit pass through the main pressure pressure value of sheet re-detection mechanism each secondary punch die of real time record;

C, output dish combination (2) generate the relevant contraposition signal of main pressure with described each secondary punch die, for the corresponding relation of the described main pressure pressure value of central control unit real time record and each secondary punch die;

D, central control unit judge according to described main pressure pressure value whether the tablet in each secondary punch die is useless sheet; When described main pressure pressure value exceeded preset range, central control unit judged that promptly the tablet in the corresponding punch die is useless sheet and starts the inspection rejects program; Central control unit goes out to exist useless sheet by described compensated pulse signal and contraposition calculated signals punch die runs to the time point that the nozzle bore (13) of pneumatic waste picking system (3) is located with the tablet press machine turntable, and triggers pneumatic waste picking system (3) with blow off low punch sheet profile and import waste recovery passage (25) of described useless sheet at this time point.

8, the method for work of the monolithic rejection device of Highspeedrotarytabletpress according to claim 2 is characterized in that: comprise the steps:

A, when the Highspeedrotarytabletpress operate as normal, advance disk combination (1) generates the angular speed corresponding compensation pulse signal with main motor (17) output shaft; Central control unit makes up the angular speed of compensated pulse signal detection main motor (17) output shaft that the compensation sensor (7) in (1) produces by described advance disk, and controls described angular speed by program-control frequency converting device;

B, central control unit pass through the main pressure pressure value of sheet re-detection mechanism each secondary punch die of real time record;

C, output dish combination (2) generate the relevant contraposition signal of main pressure with described each secondary punch die, for the corresponding relation of the described main pressure pressure value of central control unit real time record and each secondary punch die;

D, central control unit judge according to described main pressure pressure value whether the tablet in each secondary punch die is useless sheet; When described main pressure pressure value exceeded preset range, central control unit judged that promptly the tablet in the corresponding punch die is useless sheet and starts the inspection rejects program; Central control unit goes out to exist useless sheet by described compensated pulse signal and contraposition calculated signals punch die runs to the time point that the nozzle bore (13) of pneumatic waste picking system (3) is located with the tablet press machine turntable, and triggers pneumatic waste picking system (3) with blow off low punch sheet profile and import waste recovery passage (25) of described useless sheet at this time point.

9, the method for work of the monolithic rejection device of Highspeedrotarytabletpress according to claim 3 is characterized in that: comprise the steps:

A, when the Highspeedrotarytabletpress operate as normal, the compensation code-disc (6) of advance disk combination (1) is with the coaxial rotation of main motor (17) output shaft, and while compensation sensor (7) produces the angular speed corresponding compensation pulse signal with main motor (17) output shaft;

B, central control unit pass through the main pressure pressure value of sheet re-detection mechanism each secondary punch die of real time record;

C, output dish combination (2) generate the relevant contraposition signal of main pressure with described each secondary punch die, for the corresponding relation of the described main pressure pressure value of central control unit real time record and each secondary punch die; Wherein, described contraposition signal comprises punch die pulse signal and starting point pulse signal; Counting code-disc (8) and the coaxial rotation of turntable (14) in the described output dish combination (2), punch die is counted sensor (10) generation and is pressed the corresponding punch die pulse signal of work with the master of described each secondary punch die simultaneously, plays point sensor (9) generation and counts the corresponding starting point pulse signal of code-disc (8) turnover frequency; Central control unit is by punch die pulse signal and starting point pulse signal, the corresponding relation of described each the main pressure pressure value of real time record and each secondary punch die; The frequency of described compensated pulse signal is 20 times of punch die pulse signal frequency at least;

D, central control unit judge according to described main pressure pressure value whether the tablet in each secondary punch die is useless sheet; When described main pressure pressure value exceeded preset range, central control unit judged that promptly the tablet in the corresponding punch die is useless sheet and starts the inspection rejects program; Central control unit goes out to exist useless sheet by described compensated pulse signal and contraposition calculated signals punch die runs to the time point that the nozzle bore (13) of pneumatic waste picking system (3) is located with the tablet press machine turntable, and triggers pneumatic waste picking system (3) with blow off low punch sheet profile and import waste recovery passage (25) of described useless sheet at this time point.

10, the method for work of the monolithic rejection device of Highspeedrotarytabletpress according to claim 5 is characterized in that: comprise the steps:

A, when the Highspeedrotarytabletpress operate as normal, advance disk combination (1) generates the angular speed corresponding compensation pulse signal with main motor (17) output shaft;

B, central control unit pass through the main pressure pressure value of sheet re-detection mechanism each secondary punch die of real time record;

C, output dish combination (2) generate the relevant contraposition signal of main pressure with described each secondary punch die, for the corresponding relation of the described main pressure pressure value of central control unit real time record and each secondary punch die;

D, central control unit judge according to described main pressure pressure value whether the tablet in each secondary punch die is useless sheet; When described main pressure pressure value exceeded preset range, central control unit judged that promptly the tablet in the corresponding punch die is useless sheet and starts the inspection rejects program; Central control unit goes out to exist useless sheet by described compensated pulse signal and contraposition calculated signals punch die runs to the time point that the nozzle bore (13) of pneumatic waste picking system (3) is located with the tablet press machine turntable, and triggers pneumatic waste picking system (3) with blow off low punch sheet profile and import waste recovery passage (25) of described useless sheet at this time point; When central control unit triggers pneumatic waste picking system (3), promptly trigger the solenoid directional control valve (12) in the pneumatic waste picking system synchronously, make it get electric work, and by the high pressure draught that imports from source of the gas treatment element (11) the sheet low punch sheet profile of blowing off of will giving up, and import waste recovery passage (25) by curved baffle (16) sheet that will give up.

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