Rotary tablet pressing device and tablet pressing method

Abstract

The invention discloses a rotary tablet pressing device and a tablet pressing method, and relates to the technical field of rotary tablet pressing, the rotary tablet pressing device comprises a machine body, the upper end of the machine body is rotatably provided with a spinning disc, the upper end of a convex connecting part is fixedly provided with a driving disc, and the position, close to the edge, of the driving disc is provided with a plurality of pressing rods which are of an annular structure and are uniformly arranged at intervals; the pressing block and the material groove are distributed in an up-down opposite mode, and an electric heating piece of an annular structure is embedded in the radial side wall in the material groove; a lifting seat capable of being adjusted in a lifting mode is arranged in the trough, and the space among the radial side wall in the trough, the upper end face of the lifting seat and the bottom wall of the pressing block is a tabletting space. According to the invention, before rotary tabletting, bacteria breeding in the trough can be avoided and the tabletting space in the trough can be expanded and adjusted by heating the space in the trough so as to ensure that the trough can be fully filled with medicine powder before tabletting, and then when the pressing block is pressed down into the trough, the lifting seat is lifted up, so that the tablet is pressed into the trough. Tabletting forming operation is conducted on the medicine from the upper direction and the lower direction, and it is guaranteed that the quality of tablets is uniform.

Description

Technical Field

[0001] The present invention relates to the technical field of rotary tablet pressing, in particular to a tablet rotary tablet pressing device and a tablet pressing method. Background Art

[0002] Rotary tableting refers to the process of compressing granular or powdered raw materials into tablets using a rotary tablet press. A rotary tablet press is a type of pharmaceutical equipment that compresses raw pharmaceutical materials through rotation, resulting in uniform tablets. This equipment offers high throughput, high pressure, uniform tablet density, minimal vibration, low noise, low energy consumption, high efficiency, and accurate tablet weight.

[0003] In the prior art, before the rotary tablet press completes tableting and discharges the tablets, it is necessary to first fill the trough with pharmaceutical powder, and then squeeze the pharmaceutical powder into tablets in the trough by pressing down. The finished tablets are then lifted upward, separated from the trough, and finally enter the collecting guide rail for discharge. However, in the actual tableting process, it was found that when the pharmaceutical powder is filled into the trough, and the particles of a single tablet are relatively small, the space in the trough is also relatively small. When the powder is filled into the trough, the pharmaceutical powder is fluffy and prone to gaps. This ultimately results in the gram weight of the particles after being pressed into the finished tablets failing to meet the preset requirements, resulting in uneven quality of the tablets, and thus unqualified tablets. Therefore, a tablet rotary tableting device and tableting method are designed herein to solve the above problems. Summary of the Invention

[0004] The object of the present invention is to provide a tablet rotary tablet pressing device and a tablet pressing method to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a tablet rotary tablet pressing device, comprising a body, a rotary pressing disk being rotatably disposed on the upper end of the body, a protruding connecting portion being upwardly provided at the center of the upper end surface of the rotary pressing disk, a transmission disk being fixed to the upper end of the protruding connecting portion, and a plurality of press rods being arranged in an annular manner and capable of being raised and lowered being provided at the edge of the transmission disk; A plurality of material troughs arranged in an annular shape are provided at the upper end of the spinning disk near the edge, a pressing block is fixed to the bottom end of the pressing rod, and the pressing block is arranged vertically opposite to the material trough, and an annular electric heating plate is embedded in the radial side wall of the material trough; A lifting seat that can be adjusted up and down is provided in the material trough, and the space between the radial side wall of the material trough, the upper end surface of the lifting seat and the bottom wall of the pressing block is the tablet pressing space; The pressing block enters the material trough and presses the medicine powder piled on the upper end surface of the lifting seat into tablets; When the lifting seat rises or falls in the trough, the tablet pressing space becomes smaller or larger.

[0006] In a further embodiment, the body has a built-in motor 1, the output end of the motor 1 rotates out of the upper end surface of the body and is fixedly connected to the bottom wall of the spinning disk, and the bottom wall of the spinning disk rotates and fits with the upper end surface of the body.

[0007] In a further embodiment, a support rod is fixed to the upper end of the body, a hanging seat is fixed to the upper end of the support rod, a guide column is fixed to the bottom wall of the hanging seat, a hollow portion is recessed at the upper end of the transmission disk, the bottom end of the guide column extends into the hollow portion, and the inner wall of the hollow portion is rotatably fitted with the radial side wall of the guide column.

[0008] In a further embodiment, the radial side wall of the guide post is provided with a circle of guide rails spirally distributed along the radial side wall of the guide post; The upper end of the pressure rod is provided with an enlarged portion, and the radial side wall of the enlarged portion is provided with an annular groove, and the upper and lower side walls in the annular groove are slidably fitted with the upper and lower side walls of the guide rail edge; When the transmission disk rotates synchronously with the spinning disk in the same direction, the plurality of pressure rods rotate synchronously with the transmission disk, and the annular grooves move along the distribution direction of the guide rails, thereby adjusting the lifting height of the pressure rods.

[0009] In a further embodiment, a lifting space is provided in the spinning disk, a transmission seat is slidably provided in the lifting space, an electric cylinder is provided on the bottom wall of the spinning disk, a telescopic end of the electric cylinder slides into the lifting space and is fixedly connected to the bottom wall of the transmission seat, and the transmission seat is a frustum-shaped structure with a larger upper portion and a smaller lower portion; A plurality of pulling holes are provided in the radial direction of the spinning disk, one end of the pulling hole is connected to the material trough, and the other end is connected to the lifting space. A push rod is slidably provided in the transmission hole, and the bottom wall of the lifting seat is provided with an inclined surface, which is inclined downwardly toward the side away from the center of the spinning disk. One end of the push rod is in contact with the side wall of the lifting seat, and the other end is in contact with the inclined surface.

[0010] In a further embodiment, an enlarged groove is provided on the inner radial side wall of the twitching hole, an enlarged disk is provided on the fixed sleeve of the radial side wall of the push rod, the enlarged disk is slidably fitted with the inner radial side wall of the enlarged groove, and a spring is provided on the outer wall sleeve of the push rod, one end of the spring is connected to the axial side wall of the enlarged disk, and the other end is connected to the side wall of the enlarged groove close to the material trough; When the push rod is pushed horizontally toward one side of the trough, the end of the push rod slides along the inclined surface, thereby sliding the lifting seat upward along the inner wall of the trough, thereby reducing the tablet pressing space; When the push rod is pushed horizontally away from one side of the trough, the end of the push rod slides in the opposite direction along the inclined surface. After the lifting seat loses the thrust, it slides downward along the inner wall of the trough under its own weight, thereby expanding the tablet pressing space.

[0011] In further embodiments, a material cylinder is mounted on the upper end face of the machine body and located at the side of the spinning disc, the upper end of the material cylinder is open, a second motor is fixed on the upper end face of the lifting seat, the output end of the second motor extends out of the bottom wall of the lifting seat and is fixed with a transmission rod, the bottom wall of the transmission rod is fixed with a plurality of material pushing pieces; The bottom end side wall of the material cylinder is connected with a distribution disc which is in sliding fit with the upper end face of the spinning disc, the bottom wall of the distribution disc is provided with a circular arc-shaped discharge port, and the bottom wall of the side of the material cylinder is provided with a material guiding channel which is in communication with the discharge port.

[0012] In further embodiments, the upper end of the material pushing piece extends transversely with a splash-proof extension.

[0013] In further embodiments, the upper end face of the spinning disc is provided with an L-shaped flow distribution plate, a material receiving box is embedded in the upper end face of the machine body, the upper end opening of the material receiving box is located at the side of the spinning disc, and the upper end opening of the material receiving box can receive the tablet pieces distributed from the flow distribution plate, and the material receiving box extends along the machine body and extends obliquely out of the side wall of the machine body.

[0014] A tablet pressing method based on the above-mentioned tablet spinning pressing device, comprising the following steps: A1, the distribution disc is attached to the edge position of the upper end face of the spinning disc, which can ensure that the drug powder discharged from the discharge port enters the material groove, and the bottom wall of the distribution disc is in fit with the upper end face of the spinning disc, which can prevent the drug powder from overflowing out of the discharge port on one hand, and can flatten the drug powder in each material groove on the other hand; A2, the pressing blocks of the plurality of pressing rods are synchronously fed along the guide rail, which can be operated to ascend and descend simultaneously to enter and leave the material groove, so as to realize the pressing and leaving operations; A3, before pressing the tablet, the lifting seat is lowered in the material groove, the pressing space is enlarged, and enough drug powder is ensured to be filled in the material groove, when pressing the tablet, the lifting seat is raised in the material groove, the pressing space is reduced, and the synchronous pressing operation is performed on the tablet in the up-down direction in cooperation with the pressing block; A4, after pressing the tablet, the pressing block is raised, the lifting seat is also raised, the pressing block leaves the material groove, and the lifting seat pushes the finished product out of the material groove, so as to facilitate the next pressing operation.

[0015] Compared with the prior art, the beneficial effects of the present application are: The present application can realize the sterilization treatment of the pressing space by heating the space in the material groove before spinning pressing, so as to avoid the breeding of bacteria in the material groove, and then expand the pressing space in the material groove before pressing the tablet, so as to ensure that the material groove can be fully filled with drug powder before pressing the tablet, and the lifting seat is raised upward while the pressing block is pressed into the material groove when pressing the tablet, so as to realize the pressing and forming operation on the drug from the up-down direction, and ensure the uniform quality of the tablet, thereby avoiding the unqualified tablet. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the main structure of the present invention; Figure 2 It is a structural schematic diagram of the spinning disc, transmission disc and pressure rod device of the present invention; Figure 3 For the present invention Figure 1 A magnified view of the structure at center A; Figure 4 This is a schematic diagram of the assembly structure of the guide column and multiple pressure rods of the present invention; Figure 5 is a cross-sectional view of the spinning disk of the present invention; Figure 6 For the present invention Figure 5 A magnified view of the structure at point B in the middle; Figure 7 A partial cross-sectional view of the lifting seat of the present invention lifting and lowering in the material trough of the spinning disk; Figure 8 It is a half-section view of the barrel of the present invention; Figure 9 This is a top view of the structure of the barrel and the distribution tray of the present invention; Figure 10 It is a schematic diagram of the local structure of the transmission rod of the present invention.

[0017] In the figure: 1. Machine body; 2. Support rod; 3. Spinning plate; 31. Material trough; 32. Diverter plate; 33. Push rod; 34. Lifting seat; 35. Enlarging plate; 4. Material barrel; 41. Drive rod; 42. Distributing plate; 43. Discharge port; 44. Material prying piece; 45. Anti-splash extension; 5. Guide column; 51. Guide rail; 6. Drive plate; 7. Lifting seat; 8. Material receiving box; 9. Press rod; 91. Annular slot; 92. Press block; 10. Electric cylinder; 101. Drive seat. DETAILED DESCRIPTION

[0018] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts are within the scope of protection of the present invention.

[0019] Embodiment, this embodiment provides a tablet rotary tablet pressing device, such as Figure 1As shown, it includes a body 1, a spinning disk 3 is rotatably provided on the upper end of the body 1, and a motor 1 is built into the body 1. The output end of the motor 1 rotates and extends out of the upper end surface of the body 1 and is fixedly connected to the bottom wall of the spinning disk 3, and the bottom wall of the spinning disk 3 is rotatably fitted with the upper end surface of the body 1. The motor 1 provides power to drive the spinning disk 3 to perform circular motion.

[0020] A protruding connection portion is provided at the center of the upper end surface of the spinning disk 3, and a transmission disk 6 is fixed to the upper end of the protruding connection portion. A plurality of pressure rods 9 are arranged evenly at intervals in a ring structure near the edge of the transmission disk 6; that is, a socket for the sliding insertion of the pressure rods 9 is provided at the edge of the transmission disk 6, and the pressure rods 9 can slide freely along the axial direction of the socket. Figure 2 and Figure 4 As shown, a support rod 2 is fixed to the upper end of the machine body 1, a hanging seat 7 is fixed to the upper end of the support rod 2, and a guide post 5 is fixed to the bottom wall of the hanging seat 7. A hollow portion is recessed at the upper end of the transmission plate 6, and the bottom end of the guide post 5 extends into the hollow portion. The inner wall of the hollow portion rotates in contact with the radial side wall of the guide post 5. In other words, the transmission plate 6 rotates synchronously with the spinning plate 3, and the transmission plate 6 rotates in contact with the outer wall of the guide post 5. This design is to ensure the stability of the transmission plate 6 and the spinning plate 3 during rotation.

[0021] The pressure rod 9 can be raised and lowered. Specifically, a circle of guide rails 51 spirally distributed along the radial side wall of the guide column 5 is provided on the radial side wall of the guide column 5. An expansion portion is provided at the upper end of the pressure rod 9, and an annular groove 91 is opened on the radial side wall of the expansion portion. The upper and lower side walls of the annular groove 91 are slidably fitted with the upper and lower side walls of the edge of the guide rail 51. The structure of the guide rail 51 is as follows: Figure 4 As shown, when the transmission disk 6 rotates synchronously with the spinning disk 3, for example, along the direction indicated by the arrow q in 4, multiple pressure rods 9 rotate synchronously with the transmission disk 6, and at the same time, the annular groove 91 moves along the distribution direction of the guide rail 51. When the pressure rod 9 rotates through the higher position of the guide rail 51, it can slide upward along the socket to raise the pressure rod 9. When the pressure rod 9 rotates through the lower position of the guide rail 51, it can slide downward along the socket to lower the height of the pressure rod 9.

[0022] In addition, a plurality of material troughs 31 are arranged in an annular structure and evenly spaced at intervals at the upper end of the spinning disk 3 near the edge, and an annular electric heating plate is embedded in the radial side wall of the material trough 31. The electric heating plate adopts a PCT electric heating element. By heating the space inside the material trough 31, the tablet pressing space is disinfected to avoid the growth of bacteria in the material trough 31.

[0023] This embodiment also discloses a barrel 4 mounted on the upper end surface of the machine body 1 and located on the side of the spinning disk 3. Figure 1 、 Figure 8 and Figure 10As shown, the upper end of the barrel 4 is an open structure, and a motor 2 is fixed to the upper end face of the hanging seat 7. The output end of the motor 2 rotates and extends out of the bottom wall of the hanging seat 7 and is fixed with a transmission rod 41. A plurality of material-dispensing pieces 44 are fixed to the bottom wall of the transmission rod 41; the side wall of the bottom end of the barrel 4 is connected to a distribution plate 42 that slides in contact with the upper end face of the spinning plate 3, and the bottom wall of the distribution plate 42 is provided with a discharge port 43 of an arc-shaped structure, and the side bottom wall of the barrel 4 is provided with a material guide channel connected to the discharge port 43. Motor 2 provides rotational power for the transmission rod 41, which can drive a plurality of material-dispensing pieces 44 to perform stirring and feeding operations in the barrel 4. Specifically, the material-dispensing piece 44 rotates at the bottom end of the barrel 4, and can move the pharmaceutical powder in a circular trajectory, so that the pharmaceutical powder is moved to generate centrifugal force, thereby entering the discharge port 43 of the distribution plate 42 laterally through the pouring channel. Here, the discharge port 43 is as follows Figure 9 The arc-shaped structure shown can adapt to the arrangement of multiple material troughs 31 on the upper end surface of the spinning disk 3. That is, when the multiple material troughs 31 rotate through the discharge port 43, the opening shape of the discharge port 43 is similar to the arrangement shape of the multiple material troughs 31. This can save feeding space to the maximum extent and ensure that multiple material troughs 31 can be fed at the same time.

[0024] like Figure 10 As shown, an anti-splashing extension portion 45 extends laterally from the upper end of the material-prying piece 44. When the material-prying piece 44 rotates to pry the material, in order to prevent the drug powder from splashing out of the opening of the barrel 4 due to being pried, the anti-splashing extension portion 45 is provided, which can largely avoid the splashing of drug powder and thereby reduce the waste of drug particles.

[0025] like Figure 3 As shown, a pressing block 92 is fixed to the bottom end of the pressing rod 9, and the pressing block 92 is distributed directly above and below the material trough 31. The adjustment of the height of the pressing rod 9 can drive the synchronous adjustment of the height of the pressing block 92. When the pressing rod 9 is raised, the pressing block 92 can be lifted out of the material trough 31. When the pressing rod 9 is lowered, the pressing block 92 can be pressed into the material trough 31 to perform the tableting operation.

[0026] In addition, since the particles of a single tablet are relatively small, the space in the trough 31 is generally also relatively small. When the drug powder is filled into the trough 31, the drug powder is fluffy and easily has gaps. As a result, the gram weight of the particles after being pressed into the finished tablets cannot meet the preset requirements, resulting in uneven quality of the tablets, and thus causing the tablets to be unqualified.

[0027] For this purpose, a lifting seat 34 that can be adjusted up and down is provided in the trough 31. Specifically, Figure 5 、 Figure 6 and Figure 7As shown, a lifting space is provided within the spinning disk 3, within which a transmission seat 101 is slidably mounted. An electric cylinder 10 is provided on the bottom wall of the spinning disk 3. The telescopic end of the electric cylinder 10 slides into the lifting space and is fixedly connected to the bottom wall of the transmission seat 101. The transmission seat 101 is a truncated cone-shaped structure with a larger top and a smaller bottom. A plurality of twitching holes are provided radially within the spinning disk 3. One end of the twitching hole is connected to the material trough 31 and the other end is connected to the lifting space. A push rod 33 is slidably mounted within the transmission hole. The bottom wall of the lifting seat 34 is provided with an inclined surface, which is tilted downwardly toward the side away from the center of the spinning disk 3. One end of the push rod 33 is in contact with the side wall of the lifting seat 34, and the other end is in contact with the inclined surface. When the electric cylinder 10 provides power to drive the transmission seat 101 downward within the lifting space, the transmission seat 101 uses its inclined sidewalls to provide lateral thrust to the push rod 33. Therefore, when the push rod 33 is pushed horizontally toward one side of the trough 31 , the end of the push rod 33 slides along the inclined surface, causing the lifting seat 34 to slide upward along the inner wall of the trough 31 , thereby reducing the tablet pressing space.

[0028] An enlarged groove is provided on the radial side wall of the twitching hole, and an enlarged disk 35 is fixedly mounted on the radial side wall of the push rod 33. The enlarged disk 35 slides in contact with the radial side wall of the enlarged groove. A spring is sleeved on the outer wall of the push rod 33. One end of the spring is connected to the axial side wall of the enlarged disk 35, and the other end is connected to the side wall of the enlarged groove near the material groove 31. Figure 6 As shown, by utilizing the elastic potential energy of the spring, when the push rod 33 loses the thrust from the transmission seat 101, the spring can push the expansion disk 35 to slide horizontally along the expansion groove, and then slide the end of the push rod 33 along the pulling hole to the side away from the material trough 31. After losing the thrust, the lifting seat 34 slides downward along the inner wall of the material trough 31 under its own weight, thereby quickly expanding and adjusting the tableting space.

[0029] The space between the inner radial side wall of the trough 31, the upper end surface of the lifting seat 34 and the bottom wall of the pressing block 92 is the tablet pressing space; Figure 7 As shown in the diagram of the lifting seat 34 rising and falling, when the pressing block 92 enters the trough 31, it compresses the pharmaceutical powder accumulated on the upper end surface of the lifting seat 34 into tablets. As the lifting seat 34 rises within the trough 31, the tableting space becomes smaller; as the lifting seat 34 descends within the trough 31, the tableting space becomes larger. Therefore, before tableting, the tableting space within the trough 31 is expanded and adjusted to ensure that the trough 31 is fully filled with pharmaceutical powder before tableting. During tableting, as the pressing block 92 is pressed down into the trough 31, the lifting seat 34 is raised upward, compressing the pharmaceutical powder from both the upper and lower directions to ensure uniform tablet quality and avoid defective tablets.

[0030] Further, such as Figure 3As shown, the upper end surface of the spinning disk 3 is provided with an L-shaped diverter plate 32. When the finished tablets are lifted by the lifting seat 34 and pushed out of the notch of the material trough 31, they can continue to rotate and move forward along the spinning disk 3. When they encounter the diverter plate 32, they no longer move forward, but instead move along the side wall of the diverter plate 32 to mark the edge of the spinning disk 3. At the same time, a receiving box 8 is embedded in the upper end surface of the machine body 1. The upper end opening of the receiving box 8 is located at the side of the spinning disk 3, and the upper end opening of the receiving box 8 can receive the tablets diverted from the diverter plate 32. The receiving box 8 extends along the inside of the machine body 1 and extends obliquely from the side wall of the machine body 1. The finished medicines finally enter from the upper end opening of the receiving box 8, roll along the inside of the receiving box 8, and roll out from the lower end opening of the receiving box 8 for easy collection.

[0031] This embodiment also discloses a tablet compression method, comprising the following steps: A1. The material distribution plate 42 is attached to the edge of the upper end surface of the spinning plate 3, which ensures that the medicine powder discharged from the discharge port 43 can enter the material trough 31 along the way. At the same time, the bottom wall of the material distribution plate 42 is in contact with the upper end surface of the spinning plate 3. On the one hand, the medicine powder is prevented from overflowing from the discharge port 43, and on the other hand, the bottom wall of the material distribution plate 42 is used to flatten the medicine powder in the notch of each material trough 31. A2. The pressing blocks 92 of the multiple pressing rods 9 are fed synchronously along the guide rail 51 and can be raised and lowered while being fed, thereby entering and exiting the trough 31 to achieve pressing and exiting operations; A3. Before tableting, the lifting seat 34 descends in the trough 31, and the tableting space becomes larger to ensure that the trough 31 is filled with sufficient drug powder. During tableting, the lifting seat 34 rises in the trough 31, and the tableting space becomes smaller, cooperating with the pressing block 92 to perform the upper and lower synchronous tableting operation; A4. After tableting is completed, the pressing block 92 rises, and the lifting seat 34 continues to rise. The pressing block 92 is separated from the notch of the material trough 31, and the lifting seat 34 pushes the finished drug out of the material trough 31 to facilitate the next tableting operation.

[0032] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A tablet rotary tablet pressing device, characterized in that: include: A machine body (1), wherein a spinning disc (3) is rotatably provided at the upper end of the machine body (1), a protruding connection portion is provided upward at the center of the upper end surface of the spinning disc (3), a transmission disc (6) is fixed at the upper end of the protruding connection portion, and a plurality of pressure rods (9) arranged in an annular shape and capable of being raised and lowered are provided at the edge of the transmission disc (6); A plurality of material troughs (31) arranged in an annular shape are provided at the upper end of the spinning disk (3) near the edge, a pressing block (92) is fixed to the bottom end of the pressing rod (9), the pressing block (92) and the material trough (31) are arranged vertically opposite each other, and an annular electric heating plate is embedded in the inner radial side wall of the material trough (31); A lifting seat (34) that can be raised and lowered is provided in the material trough (31), and the space between the inner radial side wall of the material trough (31), the upper end surface of the lifting seat (34) and the bottom wall of the pressing block (92) is a tablet pressing space; The pressing block (92) enters the trough (31) and presses the medicine powder deposited on the upper end surface of the lifting seat (34) into tablets; When the lifting seat (34) rises or falls in the trough (31), the tablet pressing space becomes smaller or larger.

2. The tablet rotary tablet pressing device according to claim 1, characterized in that It also includes a guide column (5), the upper end of the transmission plate (6) is recessed with a hollow portion, the bottom end of the guide column (5) extends into the hollow portion, and the inner wall of the hollow portion is rotationally fitted with the radial side wall of the guide column (5); The radial side wall of the guide column (5) is provided with a guide rail (51) spirally distributed along the radial side wall of the guide column (5).

3. The tablet rotary tablet pressing device according to claim 2, characterized in that An enlarged portion is provided at the upper end of the pressure rod (9), and an annular groove (91) is provided on the radial side wall of the enlarged portion. The upper and lower side walls of the annular groove (91) are slidably fitted with the upper and lower side walls of the edge of the guide rail (51).

4. The tablet rotary tablet pressing device according to claim 3, characterized in that: When the transmission disk (6) rotates synchronously with the spinning disk (3), the plurality of pressure rods (9) rotate synchronously with the transmission disk (6), and the annular groove (91) moves along the distribution direction of the guide rail (51), thereby adjusting the lifting height of the pressure rod (9).

5. The tablet rotary tablet pressing device according to claim 1, characterized in that: A lifting space is provided in the spinning disk (3), a transmission seat (101) is slidably provided in the lifting space, the transmission seat (101) is adjustable in lifting, and the transmission seat (101) is a frustum-shaped structure with a larger upper portion and a smaller lower portion; A plurality of twitching holes are provided in the spinning disk (3) along the radial direction, one end of the twitching hole is communicated with the material trough (31), and the other end is communicated with the lifting space, a push rod (33) that can be adjusted laterally is slidably provided in the transmission hole, and a slope is provided on the bottom wall of the lifting seat (34), and the slope is tilted downwardly toward the side away from the center of the spinning disk (3), and one end of the push rod (33) is in contact with the side wall of the lifting seat (34), and the other end is in contact with the slope.

6. The tablet rotary tablet pressing device according to claim 5, characterized in that: When the push rod (33) is pushed horizontally toward one side of the trough (31), the end of the push rod (33) slides along the inclined surface, thereby sliding the lifting seat (34) upward along the inner wall of the trough (31), thereby reducing the tablet pressing space; When the push rod (33) is pushed horizontally away from one side of the trough (31), the end of the push rod (33) slides in the opposite direction along the inclined surface, and the lifting seat (34) loses its thrust and slides downward along the inner wall of the trough (31) under its own weight, thereby expanding the tablet pressing space.

7. The tablet rotary tablet pressing device according to claim 3, characterized in that: It also includes a barrel (4) mounted on the upper end surface of the machine body (1) and located on the side of the spinning disk (3), the upper end of the barrel (4) is an open structure, and a material-prying piece (44) is provided in the barrel (4); The side wall of the bottom end of the barrel (4) is connected to a distribution plate (42) that is slidably fitted with the upper end surface of the spinning plate (3); the bottom wall of the distribution plate (42) is provided with a discharge port (43) with an arc-shaped structure; and the bottom wall of the side of the barrel (4) is provided with a material guide channel that is connected to the discharge port (43).

8. The tablet rotary tablet pressing device according to claim 7, characterized in that: An anti-splash extension portion (45) is laterally extended from the upper end of the material-shifting piece (44).

9. The tablet rotary tablet pressing device according to claim 1, characterized in that: The upper end surface of the spinning disk (3) is provided with an L-shaped diverter plate (32), and the upper end surface of the machine body (1) is embedded with a material receiving box (8). The upper end opening of the material receiving box (8) is located at the side of the spinning disk (3), and the upper end opening of the material receiving box (8) can receive the tablets diverted from the diverter plate (32). The material receiving box (8) extends along the inside of the machine body (1) and extends obliquely from the side wall of the machine body (1).

10. A tablet pressing method using the rotary tablet pressing device according to any one of claims 1 to 9, characterized in that: The steps include: A1. The medicine powder discharged from the discharge port (43) can enter the material trough (31) along the way, and the medicine powder at the slot of each material trough (31) is flattened by the bottom wall of the distribution plate (42); A2. The pressing blocks (92) of the plurality of pressing rods (9) are fed synchronously along the guide rail (51), and are lifted and lowered while being fed, thereby entering and exiting the material trough (31), thereby realizing the pressing and exiting operations; A3. Before tableting, the lifting seat (34) descends in the trough (31), and the tableting space becomes larger to ensure that the trough (31) is filled with sufficient drug powder. During tableting, the lifting seat (34) rises in the trough (31), and the tableting space becomes smaller, and the pressing block (92) is pressed downward to perform a synchronous tableting operation; A4. After tableting is completed, the pressing block (92) rises, the lifting seat (34) also rises, the pressing block (92) is separated from the slot of the trough (31), and the lifting seat (34) pushes the finished drug out of the trough (31) to facilitate the next tableting operation.

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