Tablet press anti-hanging device

Abstract

The present application relates to a tablet press anti-hanging device, which relates to the technical field of tablet presses, and includes a mounting frame, a tablet pressing assembly, a driving assembly, a feeding assembly and a discharging assembly. The tablet pressing assembly is arranged on the mounting frame and is used to press medicine powder into tablets; the driving assembly is arranged on the mounting frame and is used to start the tablet pressing assembly; the feeding assembly is arranged on the mounting frame and is used to add medicine powder into the tablet pressing hole; the discharging assembly is arranged on the mounting frame and is used to discharge the compressed tablets. The present application has the effect of improving the stability of the tablet press.

Description

Technical Field

[0001] The present application relates to the technical field of tablet presses, and in particular to an anti-hanging and impact device for tablet presses. Background Art

[0002] Tablet press is one of the widely used equipment in the pharmaceutical industry, mainly used to compress drug powder into solid tablets. In the process of using traditional tablet press, due to the movement of the upper and lower punches in the tableting hole, it is easy to produce hanging punch phenomenon, resulting in poor tablet forming, affecting the density and uniformity of the tablets.

[0003] At present, the general anti-hanging device is designed to force the lower punch rod to drop by mechanical force under the lower punch rod to prevent "hanging" during tableting. In addition, a dustproof seal ring is designed in the lower turntable hole to reduce fine powder falling on the lower punch rod during tableting, increase the life of the punch rod, and prevent "sticking".

[0004] However, when the tablet press runs for a long time or processes raw materials with high viscosity and humidity, the "hanging" phenomenon may still occur, resulting in a decrease in the stability of the tablet press and further affecting the quality of the tablets. Summary of the invention

[0005] In order to improve the stability of a tablet press, the present application provides a tablet press anti-hanging impact device.

[0006] The present application provides a tablet press anti-hanging device, which adopts the following technical solution: A tablet press anti-hanging device, comprising: Mounting frame; Tableting assembly, comprising: A middle die is rotatably mounted on the mounting frame, wherein a plurality of tablet pressing holes are spaced apart around the circumference of the middle die; There are multiple upper punches, each of which corresponds to a plurality of tablet pressing holes, and each of which can slide in the tablet pressing holes; A plurality of lower punches are provided, the plurality of lower punches correspond to the plurality of tablet pressing holes one by one, and the lower punches can slide in the tablet pressing holes; Two fixed plates are provided, and the two fixed plates are rotatably mounted above and below the middle die respectively. A plurality of limiting holes are arranged at intervals along a circumference of the fixed plates, and the upper punch rod and the lower punch rod are both slidably connected to the mounting frame through the limiting holes; Wherein, the upper punch rod and the lower punch rod are both sleeved with a spring, and the two ends of the spring are fixedly connected to the fixed plate and the punch rod respectively, and in the initial state, the spring is in a stretched state; A driving assembly, disposed on the mounting frame and used to drive the upper punch and the lower punch to move; A feeding assembly is arranged on the mounting frame and is used to add medicine powder into the tablet pressing hole; The discharge assembly is arranged on the mounting frame and is used for discharging the compressed tablets.

[0007] By adopting the above technical solution, when the middle die rotates, the feeding assembly gradually adds the powder into the tablet pressing hole, accurately controls the amount of the powder added, and ensures that the amount of powder in each tablet pressing hole is consistent; then, the driving assembly drives the upper punch and the lower punch to move relative to each other in the tablet pressing hole, ensuring the accuracy and stability of the pressing; When the rod is returned, under the action of the elastic force of the spring, it can ensure that the punch rod is quickly reset after the pressing is completed, ready for the next pressing, and effectively prevent the punch rod from "hanging" during the pressing process; When the pressing is completed, the driving component pushes the tablet out of the tablet pressing hole, and the discharge component discharges and collects the pressed tablets to prevent the tablets from staying in the tablet press for too long and causing quality degradation, thereby easily improving the stability of the tablet press and further improving the quality of the tablets.

[0008] Optionally, the driving component includes: The drive unit comprises: A motor, fixed on the mounting frame; A first synchronous wheel, coaxially and fixedly connected to the output shaft of the motor; A second synchronous wheel is rotatably connected to the mounting frame via a rotating shaft; A synchronous belt, sleeved on the first synchronous wheel and the second synchronous wheel; The transmission part is arranged on the driving part and is used for driving the upper punch rod and the lower punch rod to move.

[0009] By adopting the above technical solution, the output shaft of the motor drives the synchronous wheel 1 to rotate, the synchronous wheel 1 drives the synchronous belt to rotate, and the synchronous belt drives the synchronous wheel 2 to rotate. Through the flexibility and elasticity of the synchronous belt, the smooth transmission of power is achieved. The synchronous wheel 2 drives the transmission part to transmit power to the upper punch and the lower punch, thereby achieving precise driving and control of the upper punch and the lower punch, thereby improving the production efficiency of the tablet press.

[0010] Optionally, the transmission unit includes: A worm gear is coaxially and fixedly connected with the rotating shaft; a worm wheel meshing with the worm and rotatably connected to the mounting frame; A connecting shaft, one end of which is coaxially fixedly connected to the worm gear, and the other end of which passes through the fixed disk and the middle mold in sequence, and the connecting shaft is fixedly connected to the fixed disk and the middle mold; There are two guide plates, which are respectively located on both sides of the two fixed plates. The guide plates are fixed on the mounting frame. The guide plates are provided with guide arc grooves. The lowest ends of the two guide arc grooves are staggered, and the ends of the upper punch rod and the lower punch rod are confined in the guide arc grooves.

[0011] By adopting the above technical solution, the synchronous wheel 2 drives the worm to rotate, the worm drives the worm wheel to rotate, the worm wheel drives the connecting shaft to rotate, and the connecting shaft drives the fixed plate and the middle die to rotate. The self-locking property of the worm and worm wheel transmission ensures that when the tablet press stops working, the upper punch and the lower punch can be kept in a fixed position to prevent movement due to external force. It should be noted that the guide arc groove is divided into a smooth section, a climbing section and a descending section. In the initial state, the ends of the upper punch rod and the lower punch rod are located in the smooth section. Due to the staggered setting of the lowest ends of the two guide arc grooves; The guide arc groove first squeezes the upper punch rod to move downward, compressing the spring, and the spring accumulates elastic force. When the end of the upper punch rod moves to the lowest point of the guide arc groove along the descending section, the end of the lower punch rod moves to the half position of the climbing section of the guide arc groove. At this time, the upper punch rod and the lower punch rod press the powder to complete the drug making; When the middle die continues to rotate, the end of the upper punch moves away from the tablet pressing hole along the climbing section. At the same time, under the elastic force of the spring, the upper punch is pulled to move, which can effectively prevent the upper punch from hanging. At this time, the lower punch continues to move upward in the climbing section of the guide arc groove, and the lower punch pushes the tablet to move upward; In addition, when the upper punch rod is suspended, the lower punch rod can also push the upper punch rod to move, which can effectively solve the suspension phenomenon of the upper punch rod; When the end of the lower punch moves to the lowest point of the guide arc groove, the lower punch pushes the tablet out of the tablet pressing hole, which is convenient for the discharge assembly to collect and discharge the tablet. When the middle die continues to rotate, the end of the lower punch enters the descending section. Under the action of the gravity of the lower punch and the elastic force of the spring, the lower punch is easy to reset, preventing the lower punch from hanging. The precise guiding and dislocation design of the guide plate can effectively prevent the upper punch and the lower punch from hanging, thereby improving the stability of the tablet press.

[0012] Optionally, in the initial state, the end of the lower punch is located in the tablet pressing hole, the lower punch is adapted to the tablet pressing hole, and the feeding assembly includes: A feeding box is fixed on the mounting frame, and its bottom end is in contact with the surface of the middle mold, wherein a feeding hole is provided at the bottom end of the feeding box, and the feeding hole is located above the tablet pressing hole; The feeding pipe is fixed on the mounting frame and communicated with the feeding box.

[0013] By adopting the above technical solution, the feeding box is filled with powder through the feeding pipe. During the rotation of the middle mold, the bottom end of the feeding box abuts against the surface of the middle mold, so that the position of the middle mold without a tablet pressing hole is kept in contact with the feeding box, and the powder is not easy to spill. When the tablet pressing hole and the feeding hole are facing each other, the powder falls into the tablet pressing hole. Since the end of the lower punch is located in the tableting hole, the powder is not easy to fall from the bottom of the tableting hole. At the same time, since the rotation speed of the middle die is relatively constant, the docking time between the tableting hole and the feeding hole is relatively constant, thereby achieving a relative quantitative addition of powder, which helps to ensure the consistency of the quality and weight of each tablet.

[0014] Optionally, a scraper is fixedly provided on the feeding box, the scraper abuts against the middle mold and is located on the side of the feeding box opposite to the middle mold.

[0015] By adopting the above technical solution, the scraper can scrape off the residual medicine attached to the surface of the middle mold as the middle mold rotates, which helps to prevent the accumulation of medicine on the middle mold, thereby avoiding inaccurate tableting or equipment failure caused by residual medicine.

[0016] Optionally, the discharge assembly includes: A baffle, fixedly mounted on the mounting frame and located on the side of the feeding box opposite to the middle mold; The material discharge trough is fixedly arranged on the mounting frame, and one end of the material discharge trough is in contact with the middle die.

[0017] By adopting the above technical solution, when the end of the lower punch moves to the lowest point of the guide arc groove, the middle die drives the tablet to rotate, and the baffle intercepts the tablet. Under the friction force of the middle die, the tablet enters the feeding chute along the baffle and slides smoothly along the chute body to the collection area, which greatly improves the collection efficiency of the tablets and reduces the cost and time of manual collection.

[0018] Optionally, a pressure block is fixedly provided at the lowest end of the guide arc groove.

[0019] By adopting the above technical solution, since the pressing block is fixedly arranged at the lowest end of the guiding arc groove and is in close contact with the punch rod, it can be ensured that the stroke of the punch rod in each tablet pressing action is consistent. This consistency helps to improve the tablet pressing accuracy, so that the weight, thickness and shape of each tablet can be kept consistent, thereby improving product quality.

[0020] Optionally, one end of the feeding tube away from the feeding box is flared.

[0021] By adopting the above technical solution, the inlet area of ​​the feeding pipe is increased, thereby allowing more medicine powder or particles to pass through in a short time, thereby facilitating improving the feeding efficiency.

[0022] Optionally, a plurality of operating windows are hinged on the mounting frame.

[0023] By adopting the above technical solution, the opening and closing of the operating window can effectively control environmental factors such as noise, dust and odor in the working area of ​​the tablet press, providing operators with a more comfortable and healthy working environment.

[0024] Optionally, the operation window is made of transparent material.

[0025] By adopting the above technical solution, when the equipment fails or requires maintenance, the operator can quickly locate the problem through the transparent operation window and take corresponding solutions. This design not only improves the efficiency of troubleshooting, but also reduces maintenance costs and time.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. By setting springs on the upper punch and the lower punch, the upper punch and the lower punch are kept in a stretched state in the initial state, which effectively prevents the "hanging punching" phenomenon of the upper and lower punches in the tableting hole and improves the density and uniformity of the tablets; 2. The precise guidance and dislocation design of the guide plate can effectively prevent the upper punch and the lower punch from hanging, thereby improving the stability of the tablet press; 3. By setting the baffle and the feeding chute, cooperating with the lower punch and the guide arc groove, the collection efficiency of the tablets is greatly improved, and the cost and time of manual collection are reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application; Figure 2 It is a structural schematic diagram intended to illustrate the tablet pressing assembly in the embodiments of the present application.

[0028] Description of reference numerals: 1. Mounting frame; 11. Support frame; 12. Operation window; 121. Handle; 2. Tablet pressing assembly; 21. Middle die; 22. Upper punch; 23. Lower punch; 24. Fixed plate; 25. Spring; 3. Driving assembly; 31. Driving unit; 311. Motor; 312. Synchronous wheel one; 313. Synchronous wheel two; 314. Synchronous belt; 315. Rotating shaft; 32. Transmission unit; 321. Worm; 322. Worm wheel; 323. Coupling shaft; 324. Guide plate; 325. Guide arc groove; 3251. Smooth section; 3252. Climbing section; 3253. Descending section; 326. Press block; 4. Feeding assembly; 41. Feeding box; 42. Feeding pipe; 43. Scraper; 5. Discharging assembly; 51. Baffle; 52. Discharging chute. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-2 This application is described in further detail.

[0030] The present application embodiment discloses a tablet press anti-hanging device. Figure 1 and Figure 2 A tablet press anti-hanging device comprises a mounting frame 1, a tablet pressing assembly 2, a driving assembly 3, a feeding assembly 4 and a discharging assembly 5. The tablet pressing assembly 2 is arranged on the mounting frame 1 and is used to press the medicine powder into tablets; the driving assembly 3 is arranged on the mounting frame 1 and is used to start the tablet pressing assembly 2; the feeding assembly 4 is arranged on the mounting frame 1 and is used to add medicine powder into the tablet pressing hole; the discharging assembly 5 is arranged on the mounting frame 1 and is used to discharge the compressed tablets.

[0031] When in use, the feeding component 4 first adds the powder into the tablet pressing hole, and then the driving component 3 drives the tablet pressing component 2 to press the powder into tablets. When the pressing is completed, the driving component 3 pushes the tablets out of the tablet pressing hole, and the discharging component 5 discharges and collects the pressed tablets to avoid the tablets staying in the tablet press for too long and causing the quality to deteriorate, thereby facilitating the improvement of the stability of the tablet press and further improving the quality of the tablets.

[0032] Reference Figure 1 and Figure 2 The mounting frame 1 is in a rectangular box shape and is vertically arranged. A support frame 11 is fixedly arranged at the bottom of the mounting frame 1. The support frame 11 is in a rectangular box shape and is vertically arranged. The three sides of the mounting frame 1 are all open, and an operating window 12 is hinged at the open end. The operating window 12 is made of transparent material, and a handle 121 is fixedly arranged on the operating window 12.

[0033] Reference Figure 2 The tablet pressing assembly 2 includes a middle die 21, an upper punch 22, a lower punch 23 and a fixed plate 24. The middle die 21 is in the shape of a circular plate and is horizontally arranged. The middle die 21 is rotatably mounted on the mounting frame 1. The middle die 21 is provided with a plurality of tablet pressing holes spaced apart in a circumferential direction.

[0034] Reference Figure 2 There are multiple upper punch rods 22, and the multiple upper punch rods 22 correspond to the multiple tableting holes one by one. The upper punch rods 22 are located above the middle mold 21 and are vertically arranged. The upper punch rods 22 can slide in the tableting holes, and the sliding direction is the vertical direction.

[0035] Reference Figure 2 There are multiple lower punch rods 23, and the multiple lower punch rods 23 correspond to the multiple tableting holes one by one. The lower punch rods 23 are located below the middle mold 21 and are vertically arranged. The lower punch rods 23 can slide in the tableting holes, and the sliding direction is the vertical direction.

[0036] Reference Figure 2A spring 25 is sleeved on the upper punch rod 22 and the lower punch rod 23, wherein two ends of one spring 25 are fixedly connected to the upper surface of the fixed disk 24 and the upper punch rod 22 respectively, and two ends of the other spring 25 are fixedly connected to the lower surface of the fixed disk 24 and the lower punch rod 23 respectively. In the initial state, the spring 25 is in a stretched state.

[0037] Reference Figure 2 There are two fixed plates 24, which are rotatably mounted above and below the middle mold 21 respectively. The fixed plates 24 are provided with a plurality of limiting holes spaced apart around a circle. The upper punch rod 22 and the lower punch rod 23 are both slidably connected to the mounting frame 1 through the limiting holes, and the sliding directions are both vertical.

[0038] Reference Figure 2 The driving assembly 3 includes a driving part 31 and a transmission part 32. The driving part 31 includes a motor 311, a synchronous wheel 1 312, a synchronous wheel 2 313 and a synchronous belt 314. The motor 311 is fixed in the support frame 11. The synchronous wheel 1 312 is coaxially fixedly connected with the output shaft of the motor 311. The synchronous wheel 2 313 is rotatably connected with the support frame 11 through a rotating shaft 315. The synchronous belt 314 is sleeved on the synchronous wheel 1 312 and the synchronous wheel 2 313.

[0039] Reference Figure 2 The transmission part 32 includes a worm 321, a worm wheel 322, a connecting shaft 323 and a guide plate 324. The worm 321 is coaxially fixedly connected to the rotating shaft 315; the worm wheel 322 is meshed with the worm 321 and is rotatably connected to the mounting frame 1. One end of the connecting shaft 323 is coaxially fixedly connected to the worm wheel 322, and the other end passes through the fixed plate 24 and the middle mold 21 in sequence. The connecting shaft 323 is fixedly connected to the fixed plate 24 and the middle mold 21.

[0040] Reference Figure 2 There are two guide plates 324, which are respectively located on both sides of the two fixed plates 24. The guide plates 324 are in a round block shape and are arranged horizontally. The guide plates 324 are fixed on the mounting frame 1, and a guide arc groove 325 is opened on the guide plates 324.

[0041] It should be noted that the guide arc groove 325 is divided into a smooth section 3251, a climbing section 3252 and a descending section 3253. In the initial state, the ends of the upper punch rod 22 and the lower punch rod 23 are located in the smooth section 3251, the lowest ends of the two guide arc grooves 325 are staggered, and a pressure block 326 is fixed at the lowest end of the guide arc groove 325.

[0042] Reference Figure 2The guide plates 324 are named as upper guide plates 324 and lower guide plates 324 in the vertical downward direction. The sliding order of the guide arc groove 325 on the upper guide plate 324 is a smooth section 3251, a descending section 3253 and a climbing section 3252. The sliding order of the guide arc groove 325 on the lower guide plate 324 is a smooth section 3251, a descending section 3253 and a climbing section 3252.

[0043] When in use, the output shaft of the motor 311 drives the synchronous wheel 1 312 to rotate, the synchronous wheel 1 312 drives the synchronous belt 314 to rotate, the synchronous belt 314 drives the synchronous wheel 2 313 to rotate, the synchronous wheel 2 313 drives the worm 321 to rotate, the worm 321 drives the worm wheel 322 to rotate, the worm wheel 322 drives the connecting shaft 323 to rotate, and the connecting shaft 323 drives the fixed plate 24 and the middle mold 21 to rotate; The guide arc groove 325 first squeezes the upper punch 22 to move downward, compressing the spring 25. The spring 25 accumulates elastic force. When the end of the upper punch 22 moves to the lowest point of the guide arc groove 325 along the descending section 3253, the end of the lower punch 23 moves to the half position of the ascending section 3252 of the guide arc groove 325. At this time, the upper punch 22 and the lower punch 23 press the powder to complete the drug preparation. When the middle die 21 continues to rotate, the end of the upper punch 22 moves away from the tablet pressing hole along the climbing section 3252. At the same time, under the elastic force of the spring 25, the upper punch 22 is pulled to move, which can effectively prevent the upper punch 22 from hanging. At this time, the lower punch 23 continues to move upward in the climbing section 3252 of the guide arc groove 325, and the lower punch 23 pushes the tablet to move upward; When the middle die 21 continues to rotate, the end of the lower punch rod 23 enters the descending section 3253. Under the action of gravity of the lower punch rod 23 and the elastic force of the spring 25, the lower punch rod 23 is easy to reset to prevent the lower punch rod 23 from hanging. Through the precise guidance and staggered design of the guide plate 324, the hanging of the upper punch rod 22 and the lower punch rod 23 can be effectively prevented, thereby improving the stability of the tablet press.

[0044] Reference Figure 2 In the initial state, the end of the lower punch 23 is located in the tabletting hole, and the lower punch 23 is adapted to the tabletting hole. The feeding assembly 4 includes a feeding box 41 and a feeding pipe 42. The feeding box 41 is in a round box shape and is fixed on the mounting frame 1. The bottom end of the feeding box 41 is abutted against the surface of the middle mold 21. A feeding hole is opened at the bottom of the feeding box 41, and the feeding hole is located above the tabletting hole.

[0045] Reference Figure 2The feeding pipe 42 is vertically arranged and fixed on the mounting frame 1. One end of the feeding pipe 42 passes through the top surface of the mounting frame 1 and is in a flared shape. The other end of the feeding pipe 42 is connected with the feeding box 41. A scraper 43 is fixed on the feeding box 41. The scraper 43 is in an arc plate shape and abuts against the surface of the middle mold 21. The scraper 43 is located on the opposite side of the feeding box 41 and the middle mold 21.

[0046] When in use, the feeding box 41 is filled with powder from the feeding tube 42. During the rotation of the middle mold 21, when the tableting hole and the feeding hole are opposite, the powder falls into the tableting hole, and the scraper 43 scrapes off the excess powder, making it easy to complete the addition of powder, thereby avoiding inaccurate tableting or equipment failure caused by residual medicine.

[0047] Reference Figure 2 The discharge assembly 5 includes a baffle 51 and a material chute 52. The baffle 51 is in an arc-shaped plate shape and is fixed on the mounting frame 1. The baffle 51 is located on the side opposite to the feeding box 41 and the middle mold 21. The material chute 52 is fixed on the mounting frame 1. One end of the material chute 52 abuts against the middle mold 21 and is located on one side of the baffle 51. The other end of the material chute 52 passes through the mounting frame 1.

[0048] During use, when the end of the lower punch 23 moves to the lowest point of the guiding arc groove 325, the lower punch 23 pushes the tablet out of the tablet pressing hole, the middle die 21 drives the tablet to rotate, and the baffle 51 intercepts the tablet. Under the friction force of the middle die 21, the tablet enters the discharge chute 52 along the baffle 51 and slides smoothly along the chute body to the collection area, which greatly improves the collection efficiency of the tablets and reduces the cost and time of manual collection.

[0049] The implementation principle of the anti-lifting device for a tablet press according to the embodiment of the present application is as follows: under the driving action of the synchronous wheel set and the worm wheel 322 and the worm 321, the motor 311 drives the connecting shaft 323 to rotate, and the connecting shaft 323 drives the fixed plate 24 and the middle mold 21 to rotate, and the feeding tube 42 is used to fill the feeding box 41 with medicine powder. During the rotation of the middle mold 21, when the tablet pressing hole and the feeding hole are facing each other, the medicine powder falls into the tablet pressing hole; The guide arc groove 325 first squeezes the upper punch 22 to move downward, compressing the spring 25. The spring 25 accumulates elastic force. When the end of the upper punch 22 moves to the lowest point of the guide arc groove 325 along the descending section 3253, the end of the lower punch 23 moves to the half position of the ascending section 3252 of the guide arc groove 325. At this time, the upper punch 22 and the lower punch 23 press the powder to complete the drug preparation. When the middle die 21 continues to rotate, the end of the upper punch 22 moves away from the tablet pressing hole along the climbing section 3252. At the same time, under the elastic force of the spring 25, the upper punch 22 is pulled to move, which can effectively prevent the upper punch 22 from hanging. At this time, the lower punch 23 continues to move upward in the climbing section 3252 of the guide arc groove 325, and the lower punch 23 pushes the tablet to move upward; When the middle die 21 continues to rotate, the end of the lower punch 23 enters the descending section 3253. Under the gravity of the lower punch 23 and the elastic force of the spring 25, the lower punch 23 is easily reset, which prevents the lower punch 23 from hanging and improving the stability of the tablet press. When the end of the lower punch 23 moves to the lowest point of the guiding arc groove 325, the lower punch 23 pushes the tablet out of the tablet pressing hole, the middle die 21 drives the tablet to rotate, and the baffle 51 intercepts the tablet. Under the friction force of the middle die 21, the tablet enters the discharge chute 52 along the baffle 51 and slides smoothly along the chute body to the collection area, which greatly improves the collection efficiency of the tablets and further improves the quality of the tablets.

[0050] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A tablet press anti-hanging device, characterized in that: include: Mounting frame (1); The tablet pressing assembly (2) comprises: A middle die (21) is rotatably mounted on the mounting frame (1), wherein the middle die (21) is provided with a plurality of tablet pressing holes spaced apart in a circumferential direction; A plurality of upper punches (22) are provided, the plurality of upper punches (22) correspond one-to-one to the plurality of tablet pressing holes, and the upper punches (22) are capable of sliding in the tablet pressing holes; A plurality of lower punch rods (23) are provided, the plurality of lower punch rods (23) correspond one-to-one to the plurality of tablet pressing holes, and the lower punch rods (23) are capable of sliding in the tablet pressing holes; Two fixed plates (24) are provided. The two fixed plates (24) are rotatably mounted above and below the middle die (21) respectively. The fixed plates (24) are provided with a plurality of limiting holes spaced apart in a circumferential direction. The upper punch rod (22) and the lower punch rod (23) are both slidably connected to the mounting frame (1) via the limiting holes. Wherein, a spring (25) is sleeved on the upper punch (22) and the lower punch (23), and two ends of the spring (25) are fixedly connected to the fixed plate (24) and the punch respectively. In the initial state, the spring (25) is in a stretched state; A driving assembly (3) disposed on the mounting frame (1) and used for driving the upper punch (22) and the lower punch (23) to move; A feeding assembly (4) is arranged on the mounting frame (1) and is used to add medicine powder into the tablet pressing hole; A discharge assembly (5) is arranged on the mounting frame (1) and is used to discharge compressed tablets.

2. The tablet press anti-hanging device according to claim 1, characterized in that: The driving component (3) comprises: The driving unit (31) comprises: A motor (311) is fixedly mounted on the mounting frame (1); A synchronous wheel (312) coaxially and fixedly connected to the output shaft of the motor (311); A second synchronous wheel (313) is rotationally connected to the mounting frame (1) via a rotating shaft (315); A synchronous belt (314) is sleeved on the first synchronous wheel (312) and the second synchronous wheel (313); The transmission part (32) is arranged on the driving part (31) and is used to drive the upper punch (22) and the lower punch (23) to move.

3. The tablet press anti-hanging device according to claim 2, characterized in that: The transmission part (32) comprises: The worm (321) is coaxially fixedly connected to the rotating shaft (315); A worm wheel (322) meshing with the worm (321) and rotatably connected to the mounting frame (1); A connecting shaft (323), one end of which is coaxially fixedly connected to the worm gear (322), and the other end of which passes through the fixed disk (24) and the middle mold (21) in sequence, wherein the connecting shaft (323) is fixedly connected to the fixed disk (24) and the middle mold (21); Two guide plates (324) are provided. The two guide plates (324) are respectively located on both sides of the two fixed plates (24). The guide plates (324) are fixed on the mounting frame (1). The guide plates (324) are provided with guide arc grooves (325). The lowest ends of the two guide arc grooves (325) are staggered. The ends of the upper punch rod (22) and the lower punch rod (23) are restricted in the guide arc grooves (325).

4. The tablet press anti-hanging device according to claim 1, characterized in that: In the initial state, the end of the lower punch (23) is located in the tablet pressing hole, the lower punch (23) is adapted to the tablet pressing hole, and the feeding assembly (4) comprises: A feeding box (41) is fixedly mounted on the mounting frame (1), and its bottom end is in contact with the surface of the middle mold (21), wherein a feeding hole is provided at the bottom end of the feeding box (41), and the feeding hole is located above the tablet pressing hole; A feeding pipe (42) is fixedly mounted on the mounting frame (1) and is in communication with the feeding box (41).

5. The tablet press anti-hanging device according to claim 4, characterized in that: A scraper (43) is fixedly provided on the feeding box (41), the scraper (43) abuts against the middle mold (21) and is located on the side of the feeding box (41) opposite to the middle mold (21).

6. The tablet press anti-hanging device according to claim 4, characterized in that: The discharge assembly (5) comprises: A baffle (51) is fixedly mounted on the mounting frame (1) and is located on the side of the feeding box (41) opposite to the middle mold (21); The material discharge chute (52) is fixedly mounted on the mounting frame (1), and one end of the chute is in contact with the middle mold (21).

7. The tablet press anti-hanging device according to claim 3, characterized in that: A pressing block (326) is fixedly provided at the lowest end of the guide arc groove (325).

8. The tablet press anti-hanging device according to claim 5, characterized in that: One end of the feeding pipe (42) away from the feeding box (41) is in a flared shape.

9. The tablet press anti-hanging device according to claim 1, characterized in that: A plurality of operating windows (12) are hingedly connected to the mounting frame (1).

10. The tablet press anti-hanging device according to claim 9, characterized in that: The operating window (12) is made of transparent material.

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