Tablet filling and rejection control system for tablet and capsule filling machines

Abstract

The tablet filling and waste rejection control system of the tablet capsule filling machine includes a filling module, a turntable module and a waste rejection module. Each workstation position of the turntable module is provided with a workstation unit. The filling module and the waste rejection module match the workstation unit provided on the turntable module. The filling module is provided with a tablet box. The bottom of the tablet box is provided with a vibration table and a tablet sorting box. The tablet box is connected to the vibration part of the vibration table. The tablet box is provided with a drug outlet, which is connected to the tablet sorting box. A sorting plate and a dial wheel are provided in the tablet sorting box. The sorting plate and the dial wheel are provided in a coordinated manner. An entry plate is provided between the sorting plate and the drug feeding device. The beneficial effect of the present invention is to overcome the technical problem in the prior art that two different tablets cannot be filled into a capsule at the same time. By improving the turntable module so that it has two or more groups of filling modules at the same time, different tablets can be effectively filled in conjunction with the workstation units, which greatly reduces the generation of waste rate.

Description

Technical Field

[0001] The present invention relates to the field of tablet capsule filling machines, and more particularly to a tablet filling and waste rejection control system of the tablet capsule filling machine. Background Art

[0002] With the rapid development of medical technology, more and more special medicines that can be filled into capsules with two different drugs are being used in the market. Conventional capsule filling machines fill capsules with powdered medicine and can therefore only fill one drug. To solve this problem, more and more pharmaceutical companies are requiring special medicine equipment that can produce two different tablets in a capsule. Summary of the Invention

[0003] The present invention overcomes the deficiencies in the prior art and provides a tablet filling and waste rejection control system for a tablet capsule filling machine.

[0004] The purpose of the present invention is achieved through the following technical solutions.

[0005] The tablet filling and waste rejection control system of the tablet capsule filling machine includes a filling module, a turntable module and a waste rejection module. Each workstation position of the turntable module is provided with a workstation unit, and the filling module and the waste rejection module match the workstation unit arranged on the turntable module. A tablet box is provided on the filling module, and a vibration table and a tablet sorting box are provided at the bottom of the tablet box. The tablet box is cooperatively connected with the vibration part of the vibration table, and a medicine outlet is provided on the tablet box, and the medicine outlet is connected with the tablet sorting box. A sorting plate and a dial wheel are provided in the tablet sorting box, and the sorting plate and the dial wheel are matched. An entry plate is provided between the sorting plate and the medicine feeding device, and a plurality of tablet tracks are equidistantly provided on the sorting plate and the entry plate. The tablet tracks of the sorting plate and the entry plate are matched with each other. The medicine pushing plate of the medicine feeding device is provided at the exit of the tablet track of the entry plate, and a waste detection device is provided correspondingly at the position of the moving track of the medicine pushing plate. The medicine feeding device matches the entry plate and the workstation unit arranged on the turntable module.

[0006] The medicine pushing plate is provided with medicine pushing holes, and the number and position of the medicine pushing holes match the tablet tracks of the sequencing plate.

[0007] The scrap detection device includes multiple groups of corresponding detection pressing pieces, detection pressure rods and sensors. The rotating end of the detection pressing piece is set above the position of the corresponding medicine pushing hole moving track through a rotating shaft. The detection pressing piece is connected with the detection pressure rod and the sensor. The sensor is correspondingly set in the mounting hole groove in the sensor seat. The trigger end of the detection pressing piece is in contact with the medicine pushing plate. When the corresponding medicine pushing hole is filled with tablets and passes through the trigger end of the detection pressing piece, the trigger end of the detection pressing piece rotates with the rotating end, and the trigger end of the detection pressing piece is displaced to drive the detection pressure rod to trigger the sensor.

[0008] The tablet box is provided with powder screening holes, which are composed of an array of medicine outlet holes.

[0009] The bottom plate of the tablet sorting box is set at an angle to the bottom plate of the tablet box. A sorting plate is provided on the inner wall of the bottom plate of the tablet sorting box. The cross-section of the end of the tablet sorting box facing the ground is an arc-shaped structure. The thumbwheel is set in the arc-shaped end of the tablet sorting box through a unidirectional motor, and the position of the thumbwheel matches the position of the sorting plate.

[0010] The sorting plate includes a straight plate part and a curved plate part. The straight plate part of the sorting plate is arranged on the inside of the tablet sorting box. The two ends of the curved plate part of the sorting plate are respectively connected to the straight plate part of the sorting plate and the entry plate. The setting angle of the entry plate is perpendicular to the horizontal plane.

[0011] A turntable is provided on the turntable module, and a plurality of workstation units are equidistantly provided at the edge of the turntable. The workstation units include an upper module and a lower module. A plurality of holes and slots are provided on the upper module and the lower module respectively. The holes and slots provided on the upper module are used to set the outer shell of the upper part of the capsule, and the holes and slots provided on the lower module are used to set the outer shell of the lower part of the capsule. The holes and slots of the upper module and the lower module are arranged to overlap, and the lower module is connected to the turntable through a push-pull device.

[0012] The waste rejection module is an air blowing device, which is provided with a plurality of air blowing ports, the number and position of which match the hole slots.

[0013] A vibration table top cover is provided on the vibration table.

[0014] The number of the loading modules is one or more and each of the loading modules is arranged at a corresponding workstation position of the turntable module.

[0015] The beneficial effects of the present invention are:

[0016] This solution overcomes the existing technical problem of being unable to simultaneously fill capsules with two different tablets. By improving the turntable module to include two or more sets of filling modules, combined with the workstation units, it can effectively fill different tablets. Furthermore, improvements to the reject rejection function significantly reduce the scrap rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the loading module;

[0018] Figure 2 It is a schematic diagram of the structure of a pill box;

[0019] Figure 3 It is a top view of the pill box;

[0020] Figure 4 It is a structural diagram of the vibration table top cover;

[0021] Figure 5It is a structural diagram of a pill sorting box;

[0022] Figure 6 It is a structural diagram of the thumbwheel;

[0023] Figure 7 It is a structural diagram of the sorting board;

[0024] Figure 8 It is a structural diagram of the bending portion of the sorting plate;

[0025] Figure 9 It is a structural diagram of the medicine pushing plate;

[0026] Figure 10 It is a structural diagram of the medicine feeding device;

[0027] Figure 11 It is a structural diagram of a scrap detection device;

[0028] Figure 12 It is a structural diagram of the sensor mounting base;

[0029] Figure 13 It is a structural diagram of the turntable module;

[0030] Figure 14 It is a structural diagram of the lower module;

[0031] Figure 15 It is a structural diagram of the waste rejection module;

[0032] Figure 16 This is a circuit control diagram of the dual vibration table and thumbwheel in this embodiment;

[0033] In the figure: 1. Filling module; 101. Tablet box; 1011. Medicine outlet; 1012. Medicine powder screening hole; 102. Vibrating table; 103. Tablet sorting box; 104. Sorting plate; 105. Dial wheel; 106. Sequencing plate; 107. One-way motor; 108. Vibrating table top cover; 2. Turntable module; 201. Work station unit; 2011. Lower module; 2012. Hole slot; 202. Turntable; 3. Waste rejection module; 301. Air outlet; 4. Medicine feeding device; 401. Medicine pushing plate; 402. Medicine pushing hole; 5. Waste detection device; 501. Detection tablet press; 502. Detection pressure rod; 503. Installation hole slot. DETAILED DESCRIPTION

[0034] The technical solution of the present invention is further described below through specific embodiments.

[0035] Example

[0036] The tablet filling and rejection control system of the tablet capsule filling machine includes a filling module 1, a turntable module 2 and a rejection module 3. Each workstation position of the turntable module 2 is provided with a workstation unit 201. The filling module 1 and the rejection module 3 match the workstation unit 201 provided on the turntable module 2. A tablet box 101 is provided on the filling module 1. A vibration table 102 and a tablet sorting box 103 are provided at the bottom of the tablet box 101. The tablet box 101 is connected with the vibration part of the vibration table 102. A medicine outlet 1011 is provided on the tablet box 101. The medicine outlet 1011 is connected to the tablet sorting box 103. The tablet sorting A sorting plate 104 and a thumbwheel 105 are provided in the box body 103, and the sorting plate 104 and the thumbwheel 105 are matched with each other. A sequencing plate 106 is provided between the sorting plate 104 and the medicine feeding device 4. A plurality of tablet tracks are equidistantly provided on the sorting plate 104 and the sequencing plate 106. The tablet tracks of the sorting plate 104 and the sequencing plate 106 are matched with each other. The medicine pushing plate 401 of the medicine feeding device 4 is provided at the exit of the tablet track of the sequencing plate 106. A waste detection device 5 is provided corresponding to the position of the moving track of the medicine pushing plate 401. The medicine feeding device 4 matches the sequencing plate 106 and the workstation unit 201 provided on the turntable module 2.

[0037] The medicine pushing plate 401 is provided with medicine pushing holes 402 , and the number and position of the medicine pushing holes 402 match the tablet track of the sequencing plate 106 .

[0038] The scrap detection device 5 includes multiple groups of correspondingly arranged detection pressing pieces 501, detection pressure rods 502 and sensors. The rotating end of the detection pressing piece 501 is arranged above the position of the moving trajectory of the corresponding medicine pushing hole 402 through a rotating shaft. The detection pressing piece 501 is connected with the detection pressure rod 502 and the sensor. The sensor is correspondingly arranged in the mounting hole groove 503 in the sensor seat. The trigger end of the detection pressing piece 501 is in contact with the medicine pushing plate 401. When the corresponding medicine pushing hole 402 is filled with tablets and passes through the trigger end of the detection pressing piece 501, the trigger end of the detection pressing piece 501 rotates with the rotating end, and the trigger end of the detection pressing piece 501 is displaced to drive the detection pressure rod 502 to trigger the sensor.

[0039] The tablet box 101 is provided with powder screening holes 1012 , which are composed of a matrix of medicine outlet holes.

[0040] The bottom plate of the pill sorting box 103 is set at an angle to the bottom plate of the tablet box 101. A sorting plate 104 is provided on the inner wall of the bottom plate of the pill sorting box 103. The cross-section of the end of the pill sorting box 103 facing the ground is an arc-shaped structure. The thumbwheel 105 is set in the arc-shaped end of the pill sorting box 103 through a one-way motor 107. The position of the thumbwheel 105 matches the position of the sorting plate 104.

[0041] The sorting plate 104 includes a straight plate portion and a curved plate portion. The straight plate portion of the sorting plate 104 is arranged on the inner side of the tablet sorting box 103. The two ends of the curved plate portion of the sorting plate 104 are respectively connected to the straight plate portion of the sorting plate 104 and the entry plate 106. The setting angle of the entry plate 106 is perpendicular to the horizontal plane.

[0042] A turntable 202 is provided on the turntable module 2, and a plurality of workstation units 201 are equidistantly provided at the edge of the turntable 202. The workstation unit 201 includes an upper module and a lower module 2011. The upper module and the lower module 2011 are correspondingly provided with a plurality of holes and grooves 2012. The holes and grooves 2012 provided on the upper module are used to set the outer shell of the upper part of the capsule, and the holes and grooves 2012 provided on the lower module 2011 are used to set the outer shell of the lower part of the capsule. The holes and grooves 2012 of the upper module and the lower module 2011 are arranged to overlap, and the lower module 2011 is connected to the turntable 202 through a push-pull device.

[0043] The reject module 3 is an air blowing device, which is provided with a plurality of air blowing ports 301 . The number and positions of the air blowing ports 301 match the hole slots 2012 .

[0044] A vibration table top cover 108 is provided on the vibration table 102 .

[0045] The number of the loading modules 1 is one or more and each of them is arranged at the corresponding workstation position of the turntable module 2 .

[0046] In this embodiment, the working principle of this solution is described as follows by taking two loading modules 1 as an example.

[0047] like Figures 1 to 14 As shown, the turntable module 2 cooperates with two filling modules 1 and one reject module 3. The two filling modules 1 respectively fill two different types of tablets into the lower module 2011 of the corresponding workstation unit 201 of the turntable module 2 to achieve the purpose of filling multiple tablets.

[0048] In the filling module 1, tablets are placed in a tablet box 101. Vibration from the vibrating table 102 causes the tablets to pass through the medicine outlet 1011 and into the tablet sorting box 103 for sorting. Once in the tablet sorting box 103, the thumbwheel 105 driven by the unidirectional motor 107 enters the tablet track of the sorting plate 104, then enters the infeed plate 106, and finally falls into the medicine push hole 402 of the medicine push plate 401. When the corresponding lower module 2011 moves to a designated station, the medicine push hole 402 moves with the medicine push plate 401, and finally the tablets fall into the capsule shell provided in the hole 2012 of the lower module 2011, completing the filling process. During this movement, a fully filled tablet in the pill ejection hole 402 comes into contact with the trigger end of the detection pressing plate 501, causing the detection pressing plate 501 to rotate along its rotating end, driving the detection pressing rod 502 to trigger the sensor 503. This determines whether the capsule is filled with such a tablet, that is, whether it is scrap. This data is transmitted to the host computer via an electrical signal, which controls the rejection module 3 to reject the corresponding tablet according to the slot position.

[0049] Preferably, in order to simplify the device structure, the number of the waste rejection module 3 is one, which performs unified rejection based on the data fed back from each filling module 1 .

[0050] Further, if Figure 2 and Figure 3 As shown, the tablet box 101 is provided with a powder screening hole 1012, which is composed of an array of medicine outlet holes. Its function is to screen out the powder and accumulate the powder.

[0051] Further, if Figure 4 As shown, the vibration table top cover 108 is used to cover the vibration table 102 to avoid contamination of the equipment.

[0052] Further, if Figure 5 and Figure 6 As shown, the pill sorting box 103 is continuously rotated by the thumbwheel 105, causing the pills in the pill sorting box 103 to fall onto the sorting plate 104 for transport. One end of the pill sorting box 103 is curved to fit the thumbwheel 105, facilitating the movement of the pills and preventing them from being wasted by accumulation in a corner of the pill sorting box 103.

[0053] Further, if Figure 7 and Figure 8 As shown, sorting plate 104 includes an inclined section and a curved section at one end. The inclined section of sorting plate 104 is positioned inside tablet sorting box 103, allowing for better contact with the tablets, ensuring the tablet track is filled with tablets, reducing gaps and lowering the defective rate. Simultaneously, the curved section mates with the entry plate 106, allowing tablets to enter the entry plate 106 more easily.

[0054] Further, if Figure 9 and Figure 10 As shown, the medicine pushing plate 401 is reciprocated by a push-pull device provided on the medicine feeding device 4. The push-pull device can be a push rod device such as an electric cylinder or a pneumatic cylinder. The medicine pushing plate 401 is provided with a medicine pushing hole 402 for holding medicine. When it is not moving, it docks with the tablet track of the sequencing plate 106 to fill the tablets. When the corresponding workstation unit 201 moves to the filling position, the medicine pushing plate 401 moves, and the medicine pushing hole 402 moves with the medicine. After the rejection detection device 5 is triggered midway, the medicine pushing hole 402 coincides with the corresponding hole groove 2012 provided on the lower module 2011, completing the medicine feeding.

[0055] Further, if Figure 11 and Figure 12 As shown, the sensor is correspondingly arranged in the mounting hole groove 503, and the scrap detection device 5 uses the sensor to acquire data, wherein the detection pressure piece 501 moves by mechanical triggering and drives the detection pressure rod 502 to complete the stimulation of the sensor, wherein the detection pressure rod 502 is reset by the elastic member.

[0056] Further, if Figure 13 and Figure 14 As shown, the turntable module 2 rotates using the turntable 202. In this embodiment, twelve workstation units 201 are used. The upper and lower modules 2011 of the workstation units 201 are arranged vertically. When the workstation unit 201 reaches the corresponding filling module 1, the lower module 2011 is driven forward by a push-pull device to begin drug delivery. After all drug delivery operations are completed, the lower module 2011 moves in the opposite direction so that the slots 2012 provided on the upper and lower modules 2011 overlap, thereby docking the upper and lower capsule shells and completing capsule production.

[0057] Further, if Figure 15 As shown, the rejection module 3 is an air blowing device, which is provided with a plurality of air blowing ports 301, the number and position of which match the slots 2012. The rejection module 3 rejects the unfilled capsules in the workstation unit 201 by air blowing.

[0058] Preferably, Figure 16 As shown, this embodiment shows an embodiment with two loading modules 1. From left to right in the figure, the control circuits for the first and second paddle wheel motors, the first and second oscillating platforms are shown. The speed control function of each unidirectional motor 107 and the oscillating platform 102 is achieved via a slide button.

[0059] In the figure, 1M3 and 1M4 correspond to the first and second paddle wheel motors respectively. A4 and A5 are motor controllers.

[0060] The control circuits of 1M3 and 1M4 are the same. Taking the circuit of 1M3 as an example, FU2 is a fuse, ZH1-1 is a switch, and the motor controller A4 is connected to the sliding controller through the 3B and 4B terminals. The sliding controller provides signal feedback to the motor controller A4, and the motor 1M3 is controlled by the 5B-8B terminals.

[0061] The circuit control diagram of the first oscillator and the second oscillator is the two control circuits on the right side of the figure. In the figure, the switch QF9 controls the opening and closing of the control circuits of the first oscillator and the second oscillator.

[0062] The control circuits for the first and second oscillators are identical. For example, the first oscillator's control circuit is shown in the third column from left to right in the accompanying diagram. The first oscillator is controlled by a controller, which is connected to the slide switch via a terminal block. ZH3-1 is the control switch, and FU4 is the fuse. The controller controls the first oscillator through ZH3-1 and FU4.

[0063] Furthermore, IN1 and OUT1 in the control circuit represent input and output pins, respectively. IN1 and OUT1 rely on input signals from A1 and B1 to control the output of signals, thereby adjusting different groups of vibration stages 102. X0 represents a connection terminal.

[0064] The embodiments of the present invention are described in detail above, but the contents described are only preferred embodiments of the present invention and should not be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. The tablet filling and reject control system of the tablet capsule filling machine is characterized by: The tablet box comprises a loading module, a turntable module and a waste rejection module. Each workstation position of the turntable module is provided with a workstation unit. The loading module and the waste rejection module match the workstation unit provided on the turntable module. A tablet box is provided on the loading module. A vibration table and a tablet sorting box are provided at the bottom of the tablet box. The tablet box is cooperatively connected with the vibration part of the vibration table. A medicine outlet is provided on the tablet box, and the medicine outlet is connected with the tablet sorting box. A sorting plate and a dial wheel are provided in the tablet sorting box. The sorting plate and the dial wheel are matched with each other. An entry plate is provided between the sorting plate and the medicine feeding device. A plurality of tablet tracks are equidistantly provided on the sorting plate and the entry plate. The tablet tracks of the sorting plate and the entry plate are matched with each other. The medicine pushing plate of the medicine feeding device is provided at the exit of the tablet track of the entry plate. A waste detection plate is provided at the position of the moving track of the medicine pushing plate The detection device and the medicine feeding device match the workstation units arranged on the sequencing plate and the turntable module. The medicine pushing plate is provided with medicine pushing holes. The number and position of the medicine pushing holes match the tablet track of the sequencing plate. The scrap detection device includes multiple groups of corresponding detection tablets, detection pressure rods and sensors. The rotating end of the detection tablet is arranged above the position corresponding to the moving track of the medicine pushing hole through the rotating shaft. The detection tablet is connected with the detection pressure rod and the sensor. The sensor is correspondingly arranged in the mounting hole groove in the sensor seat. The trigger end of the detection tablet is in contact with the medicine pushing plate. When the corresponding medicine pushing hole is filled with tablets and passes through the trigger end of the detection tablet, the trigger end of the detection tablet rotates with the rotating end. The trigger end of the detection tablet is displaced to drive the detection pressure rod to trigger the sensor.

2. The tablet filling and reject control system of the tablet capsule filling machine according to claim 1, characterized in that: The tablet box is provided with powder screening holes, which are composed of an array of medicine outlet holes.

3. The tablet filling and reject control system of the tablet capsule filling machine according to claim 1, characterized in that: The bottom plate of the pill sorting box is arranged at an angle to the bottom plate of the tablet box, the sorting plate is provided on the inner wall of the bottom plate of the pill sorting box, the cross-section of the end of the pill sorting box facing the ground is an arc-shaped structure, the thumbwheel is arranged in the arc-shaped end of the pill sorting box by a one-way motor, and the position of the thumbwheel matches the position of the sorting plate.

4. The tablet filling and reject control system of the tablet capsule filling machine according to claim 1, characterized in that: The sorting plate includes a straight plate portion and a curved plate portion. The straight plate portion of the sorting plate is arranged on the inner side of the tablet sorting box. The two ends of the curved plate portion of the sorting plate are respectively connected to the straight plate portion of the sorting plate and the entry plate. The setting angle of the entry plate is perpendicular to the horizontal plane.

5. The tablet filling and reject control system of the tablet capsule filling machine according to claim 1, characterized in that: A turntable is provided on the turntable module, and a plurality of workstation units are equidistantly provided at the edge of the turntable. The workstation units include an upper module and a lower module. A plurality of holes and slots are correspondingly provided on the upper module and the lower module. The holes and slots provided on the upper module are used to set the outer shell of the upper part of the capsule, and the holes and slots provided on the lower module are used to set the outer shell of the lower part of the capsule. The holes and slots of the upper module and the lower module are arranged to overlap, and the lower module is connected to the turntable through a push-pull device.

6. The tablet filling and reject control system of the tablet capsule filling machine according to claim 1, characterized in that: The waste rejection module is an air blowing device, which is provided with a plurality of air blowing ports, the number and positions of which match the hole slots.

7. The tablet filling and reject control system of the tablet capsule filling machine according to claim 1, characterized in that: A vibration table top cover is provided on the vibration table.

8. The tablet filling and reject control system of the tablet capsule filling machine according to any one of claims 1 to 7, characterized in that: The number of the loading modules is one or more, and each of the loading modules is arranged at a workstation position corresponding to the turntable module.

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