A rotary tablet press for pharmaceutical tabletting

Abstract

The application discloses a rotary tablet press for pharmaceutical tabletting, which comprises a tablet press body, the tablet press body is provided with a first mounting body and a second mounting body which are opposite in the vertical direction, a fixing frame is arranged between the first mounting body and the second mounting body, and the rotary tablet press further comprises a rotating mechanism, a punching mechanism, an ejection mechanism and a separation mechanism, the rotating mechanism is rotationally connected with the first mounting body, a plurality of placing parts for containing medicine powder are arranged on the rotating mechanism, the punching mechanism is connected with the first mounting body and is used for punching the medicine powder in the placing parts into tablets when the rotating mechanism rotates, the ejection mechanism is connected with the fixing frame and is used for ejecting the tablets and residual medicine powder in the placing parts when the rotating mechanism rotates, and the separation mechanism is connected with the fixing frame and comprises a guide structure and a screening structure, the guide structure is used for guiding the ejected tablets and residual medicine powder to the screening structure when the rotating mechanism rotates, so that the screening structure can separate the tablets and the residual medicine powder.

Description

Technical Field

[0001] This application relates to the field of pharmaceutical tableting technology, and more particularly to a rotary tablet press for pharmaceutical tableting. Background Technology

[0002] To facilitate drug packaging, transportation, and patient administration, some medications are formulated into tablets. Patients take these tablets to achieve therapeutic effects. A pharmaceutical tablet press is used in the tablet-making process. A pharmaceutical tablet press can compress relatively moist powdered drugs into round or irregularly shaped tablets with a diameter not exceeding 13mm. Before being formed into tablets, the powdered drug is placed in a mold. After the powdered drug is formed into tablets within the mold, the pharmaceutical tablet press demolds the tablets, completing the tablet manufacturing process.

[0003] Existing pharmaceutical tableting machines leave unformed drug powder on the tablets after demolding. The tablets and powder are collected together and cannot be separated. Furthermore, with the increasing demand for drugs, the current pharmaceutical tableting machines are less efficient at producing tablets and can no longer meet the production needs of tablets. Utility Model Content

[0004] The purpose of this application is to provide a rotary tablet press for pharmaceutical tableting, so as to solve the problems of low efficiency in the production of tablets by existing pharmaceutical tablet presses and the difficulty in separating tablets and powders.

[0005] The technical solution to the above-mentioned technical problems in this application is as follows:

[0006] A rotary tablet press for pharmaceutical tableting includes a tablet press body, the tablet press body having a first mounting body and a second mounting body opposite each other in the vertical direction, a fixing frame provided between the first mounting body and the second mounting body, and further includes:

[0007] A rotating mechanism is rotatably connected to the first mounting body, and the rotating mechanism is provided with multiple placement parts for holding medicine powder;

[0008] A stamping mechanism, connected to the first mounting body, is used to stamp the powder in the placement section into tablets when the rotating mechanism rotates;

[0009] An ejection mechanism, connected to a fixed frame, is used to eject tablets and residual powder from the placement section when the rotating mechanism rotates; and,

[0010] The separation mechanism is connected to a fixed frame. The separation mechanism includes a guide structure and a sieving structure. The guide structure is used to guide the ejected tablets and residual powder to the sieving structure when the rotating mechanism rotates, so that the sieving structure can separate the tablets and residual powder.

[0011] Furthermore, the rotating mechanism includes:

[0012] The drive motor is mounted on the first mounting body;

[0013] A mounting post, rotatably inserted through the first mounting body and connected to the output shaft end of the drive motor; and

[0014] The punching die is arranged in a ring shape. The inner ring surface of the punching die is fixedly connected to the outer surface of the mounting column. The punching die has multiple placement parts arranged at intervals along its circumference.

[0015] Furthermore, the stamping mechanism includes:

[0016] The upper punch die is arranged in a ring shape and has multiple first through holes. The inner ring surface of the upper punch die is fixedly connected to the outer surface of the mounting column.

[0017] Multiple stamping rods are movably inserted through the first through hole;

[0018] A first elastic element is disposed within a first through hole and sleeved on a stamping rod; both ends of the first elastic element are fixedly connected to the stamping rod and the inner wall of the first through hole, respectively; and,

[0019] The upper stamping roller is connected to the first mounting body and is used to abut against the stamping rod and move the stamping rod downward into the placement part when the upper stamping die rotates, so as to stamp the powder.

[0020] Furthermore, the placement part includes through holes corresponding to the first and second through holes, and the ejection mechanism includes:

[0021] The lower punch is arranged in a ring shape and has multiple second through holes. The inner ring surface of the lower punch is fixedly connected to the outer surface of the mounting column.

[0022] Multiple push rods are movably inserted through the second through hole, and the part of the push rod that extends out of the lower punch die is slidably and sealingly connected to the inner wall of the through hole;

[0023] A limiting component, fixedly sleeved on the outer surface of the push rod and capable of abutting against the upper surface of the lower punch; and,

[0024] The lower punch roller, connected to the fixed bracket, is used to abut against the push rod and move the push rod upward when the lower punch die rotates, so as to push the tablet out of the through hole.

[0025] Furthermore, a first drive shaft is fixedly inserted inside the upper stamping wheel. One end of the first drive shaft is rotatably connected to the first mounting body, and the other end is fixedly connected to a first bevel gear.

[0026] A second drive shaft is fixedly inserted inside the lower punching wheel. One end of the second drive shaft is rotatably connected to a fixed frame, and the other end is fixedly connected to a second bevel gear.

[0027] The first drive column and the second drive column are fixedly installed at both ends of the mounting column, respectively. The first drive column is provided with a third bevel gear that meshes with the first bevel gear, and the second drive column is provided with a fourth bevel gear that meshes with the second bevel gear.

[0028] The first drive column is fixedly connected to the output shaft end of the drive motor, and the cross-sectional diameters of both the first drive column and the second drive column are smaller than the cross-sectional diameter of the mounting column.

[0029] Furthermore, the screening structure includes a filter plate, a tablet hopper, and a powder hopper. One end of the filter plate is fixedly connected to the tablet hopper, the tablet hopper and the powder hopper are fixedly connected, and the powder hopper is located directly below the filter plate. The powder hopper is equipped with a mounting plate, and the mounting plate is detachably connected to a fixing frame.

[0030] The guiding structure includes an interconnected feed bin and a guide plate. The feed bin is fixedly connected to the other end of the filter plate. The guide plate is located between the upper punch and the middle punch to guide the tablets to the feed bin. The inner bottom wall of the feed bin and the filter plate are both inclined.

[0031] Furthermore, powder extraction components are connected to both sides of the feed hopper, and these components are connected to the powder hopper to extract the powder from the feed hopper into the powder hopper.

[0032] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0033] As the rotating mechanism rotates, the wet powder in each placement section is sequentially pressed into tablets by the pressing mechanism. Simultaneously, the ejection mechanism ejects the newly formed tablets from the placement section. As the rotating mechanism continues to rotate, the ejected tablets and residual powder are quickly guided by the guiding mechanism to the screening mechanism for separation. This allows powder and tablets in adjacent placement sections to be formed and discharged simultaneously, improving not only the pressing and ejection efficiency of the tablet press and enabling rapid powder formation and discharge, but also enhancing the separation efficiency between tablets and residual powder. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This is a three-dimensional structural diagram of the rotary tablet press for pharmaceutical tableting according to this application;

[0036] Figure 2 This is a three-dimensional structural diagram of the rotating mechanism, stamping mechanism, and ejection mechanism of this application;

[0037] Figure 3 for Figure 2 Schematic diagram of the internal cross-sectional structure of the upper and middle punching die;

[0038] Figure 4 This is a three-dimensional structural diagram of the limiting component in this application;

[0039] Figure 5 This is a three-dimensional structural diagram of the separation mechanism of this application.

[0040] Explanation of reference numerals in the attached figures:

[0041] 1. Tableting machine body; 2. Separation mechanism; 3. Fixing frame; 4. Mounting column; 5. Upper punch die; 6. Middle punch die; 7. Drive motor; 8. First drive column; 9. Second drive column; 10. Third bevel gear; 11. Punching rod; 12. Through hole; 13. Push rod; 14. Limiting component; 15. Fourth bevel gear; 16. Second bevel gear; 17. First transmission shaft; 18. Upper punch roller; 19. Third bevel gear; 20. Second transmission shaft; 21. Lower punch roller; 22. Feed hopper; 23. First through hole; 24. Second through hole; 25. Filter plate; 26. Tablet hopper; 27. Powder hopper; 28. Mounting plate; 29. ​​Suction assembly; 30. Guide plate; 31. First mounting body; 32. Second mounting body; 33. First elastic element.

[0042] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0044] Please see Figures 1 to 5 This application discloses a rotary tablet press for pharmaceutical tableting, including a tablet press body 1. The tablet press body 1 has a first mounting body 31 and a second mounting body 32 that are vertically opposite each other. A fixing frame 3 is provided between the first mounting body 31 and the second mounting body 32. The tablet press body 1 also includes:

[0045] A rotating mechanism is rotatably connected to the first mounting body 31, and the rotating mechanism is provided with multiple placement parts for holding medicine powder;

[0046] A stamping mechanism, connected to the first mounting body 31, is used to stamp the powder in the placement section into tablets when the rotating mechanism rotates.

[0047] An ejection mechanism, connected to the fixing frame 3, is used to eject tablets and residual powder from the placement section when the rotating mechanism rotates; and,

[0048] The separation mechanism 2 and the connecting fixing frame 3 include a guiding structure and a sieving structure. The guiding structure is used to guide the ejected tablets and residual powder to the sieving structure when the rotating mechanism rotates, so that the sieving structure can separate the tablets and residual powder.

[0049] When it is necessary to compress the drug powder into tablets, wet drug powder is filled into multiple placement sections of the rotating mechanism. These sections can be arranged in a circular, spaced-apart pattern. As the rotating mechanism rotates, the wet drug powder in each placement section is sequentially compressed into tablets by the pressing mechanism. Simultaneously, the ejection mechanism pushes the newly formed tablets out of the placement sections. As the rotating mechanism continues to rotate, the ejected tablets and residual drug powder are quickly guided by the guiding mechanism to the screening mechanism for separation. In this way, drug powder and tablets in adjacent placement sections can be formed and discharged simultaneously, which not only improves the pressing and ejection efficiency of the tablet press and allows for rapid formation and discharge of drug powder, but also improves the separation efficiency between tablets and residual drug powder.

[0050] In a preferred embodiment, this application can be further configured as follows: Figure 1 and Figure 2 As shown; the rotating mechanism includes:

[0051] The drive motor 7 is mounted on the first mounting body 31;

[0052] Mounting post 4, rotatably inserted through the first mounting body 31 and connected to the output shaft end of the drive motor 7; and

[0053] The punch die 6 is arranged in a ring shape. The inner ring surface of the punch die 6 is fixedly connected to the outer surface of the mounting column 4. The punch die 6 is provided with multiple placement parts arranged at intervals along its circumference. After the drive motor 7 is started, it will drive the mounting column 4 to rotate. The mounting column 4 drives the punch die 6 to rotate, thereby causing the multiple placement parts to rotate around the mounting column 4.

[0054] In a preferred embodiment, this application can be further configured as follows: Figure 1 and Figure 2 As shown; the stamping mechanism includes:

[0055] The upper punch 5 is arranged in a ring shape. The upper punch 5 is provided with multiple first through holes 23. The inner ring surface of the upper punch 5 is fixedly connected to the outer surface of the mounting column 4.

[0056] Multiple stamping rods 11 are movably inserted through the first through hole 23;

[0057] A first elastic element 33 is disposed within the first through hole 23 and sleeved on the stamping rod 11. The two ends of the first elastic element 33 are respectively fixedly connected to the inner wall of the stamping rod 11 and the inner wall of the first through hole 23; and...

[0058] The upper stamping roller 18, connected to the first mounting body 31, abuts against the stamping rod 11 and moves it downwards into the placement section when the upper stamping die 5 rotates, thus stamping the powder. During the rotation of the mounting column 4, after the stamping rod 11 in the upper stamping die 5 contacts the arc-shaped surface of the upper stamping roller 18, the upper stamping roller 18, being fixed vertically, causes multiple upper stamping rods 11 to move downwards sequentially into their corresponding placement sections, thus stamping the powder in each section into tablets. Then, the multiple stamping rods 11 return to their original positions under the elastic force of the first elastic element 33, which may include a coil spring. Each of the multiple stamping rods 11 has a circular limiting cap at its top. The diameter of the circular limiting cap is larger than the diameter of the first through hole 23 to prevent the stamping rod 11 from completely entering or leaving the first through hole 23, making it inconvenient to remove or return to its original position.

[0059] In a preferred embodiment, this application can be further configured as follows: Figure 1 and Figure 2 As shown; the placement part includes a through hole 12 corresponding to the first through hole 23 and the second through hole 24, and the ejection mechanism includes:

[0060] The lower punch is arranged in a ring shape and has multiple second through holes 24. The inner ring surface of the lower punch is fixedly connected to the outer surface of the mounting column 4.

[0061] Multiple push rods 13 are movably inserted through the second through hole 24, and the part of the push rod 13 that extends out of the lower punch die is slidably and sealingly connected to the inner wall of the through hole 12.

[0062] The limiting component 14 is fixedly sleeved on the outer surface of the push rod 13 and can abut against the upper surface of the lower punch.

[0063] The lower stamping roller 21, connected to the fixing frame 3, is used to abut against the push rod 13 and move the push rod 13 upward when the lower stamping die rotates, so as to push the tablet out of the through hole 12. The upper stamping roller 18 and the lower stamping roller 21 are spaced apart in the horizontal direction, so that the upper stamping roller 18 and the lower stamping roller 21 are not on the same vertical line. When two adjacent placement parts approach the upper stamping roller 18 and the lower stamping roller 21 one after the other, the upper stamping roller 18 first causes the nearest stamping rod 11 of the two adjacent stamping rods 11 to enter the nearest placement part to press the powder into a tablet, and then presses the powder in the other placement part into a tablet. After the powder in the placement section closest to the upper stamping roller 18 forms a tablet, the arc-shaped surface of the lower stamping roller 21 immediately contacts the push rod 13 corresponding to that placement section and moves the push rod 13 upward, causing the tablet in that placement section to be ejected. The ejected tablet and powder, driven by the middle stamping die 6, contact the guide structure and are guided to the screening structure. During the ejection of the tablet in the placement section, the powder in the adjacent placement section is simultaneously stamped by the stamping rod 11, improving the forming efficiency of the powder and the discharge efficiency of the tablet. The setting of the limiting member 14 can prevent the push rod 13 from moving downward under the action of gravity and disengaging from the second through hole 24, ensuring the multiple pushing action of each push rod 13.

[0064] The push rod 13 can also be fitted with a second elastic element to facilitate the rapid return of the push rod to its original position. The outer wall of the push rod 13 is in sliding sealing contact with the inner wall of the through hole 12, and the powder and tablets can be placed on the upper end face of the push rod 13 to be punched and ejected.

[0065] In a preferred embodiment, this application can be further configured as follows: Figures 1 to 2 As shown; a first drive shaft 17 is fixedly inserted inside the upper stamping wheel 18. One end of the first drive shaft 17 is rotatably connected to the first mounting body 31, and the other end is fixedly connected to the first bevel gear.

[0066] A second drive shaft 20 is fixedly inserted inside the lower punching wheel 21. One end of the second drive shaft 20 is rotatably connected to the fixed frame 3, and the other end is fixedly connected to the second bevel gear 16.

[0067] The first drive column 8 and the second drive column 9 are fixedly installed at both ends of the mounting column 4, respectively. The first drive column 8 is provided with a third bevel gear 1910 that meshes with the first bevel gear, and the second drive column 9 is provided with a fourth bevel gear 15 that meshes with the second bevel gear 16.

[0068] The first drive column 8 is fixedly connected to the output shaft end of the drive motor 7. The cross-sectional diameters of both the first drive column 8 and the second drive column 9 are smaller than the cross-sectional diameter of the mounting column 4. When the mounting column 4 rotates, the meshing transmission of the first bevel gear and the third bevel gear 1910, and the meshing transmission of the second bevel gear 16 and the fourth bevel gear 15, causes the upper stamping wheel 18 and the lower stamping wheel 21 to rotate simultaneously. During the rotation of the upper stamping wheel 18, the stamping rod 11 presses the powder in the placement part, which improves the stamping effect of the stamping rod 11. During the rotation of the lower stamping wheel 21, the push rod 13 pushes the tablets in the placement part, which improves the push rod 13's push-and-release effect on the tablets. The first drive column 8 and the second drive column 9 are both thinner than the mounting column 4, which ensures that the upper stamping wheel 18 and the lower stamping wheel 21 can smoothly contact the stamping rod 11 and the push rod 13, respectively.

[0069] In a preferred embodiment, this application can be further configured as follows: Figures 1 to 3 As shown; the screening structure includes a filter plate 25, a tablet hopper 26 and a powder hopper 27. One end of the filter plate 25 is fixedly connected to the tablet hopper 26. The tablet hopper 26 and the powder hopper 27 are fixedly connected, and the powder hopper 27 is located directly below the filter plate 25. The powder hopper 27 is provided with a mounting plate 28, and the mounting plate 28 is detachably connected to the fixing frame 3.

[0070] The guiding structure includes an interconnected feed hopper 22 and a guide plate 30. The feed hopper 22 is fixedly connected to the other end of the filter plate 25. The guide plate 30 is located between the upper punch 5 and the middle punch 6 to guide the tablets to the feed hopper 22. The inner bottom wall of the feed hopper 22 and the filter plate 25 are both inclined. After demolding, multiple tablets will sequentially contact the guide plate 30 as the middle punch 6 rotates. The guide plate 30 will sequentially guide the remaining unformed powder and multiple tablets into the feed hopper 22. The tablets and powder will slide through the feed hopper 22 onto the filter plate 25. The powder will fall into the powder hopper 27 below the filter plate 25, and the tablets will slide through the filter plate 25 into the tablet hopper 26, thereby achieving the separation of tablets and powder.

[0071] In a preferred embodiment, this application can be further configured as follows: Figure 3 As shown, powder extraction components are connected to both sides of the feed hopper 22. These components are connected to the powder hopper 27 and are used to draw powder from the feed hopper 22 into the powder hopper 27. The powder extraction components can draw powder adhering to the inner wall of the feed hopper 22 into the powder hopper 27, improving the separation effect between tablets and powder. The powder extraction components may include a powder extraction pipe and a suction device, with the two ends of the powder extraction pipe connected to the feed hopper and the suction device, respectively.

[0072] The specific working principle of the rotary tablet press for pharmaceutical tableting disclosed in this application is as follows:

[0073] When it is necessary to compress the powder into tablets, wet powder is filled into multiple placement parts of the rotating mechanism. The drive motor 7 is started, which drives the mounting column 4 to rotate. The mounting column 4 drives the middle punch die 6 to rotate. During the rotation of the mounting column 4, the punching rod 11 in the upper punch die 5 will move down into the corresponding through hole 12 after contacting the arc surface of the upper punching wheel 18. When two adjacent placement parts approach the upper punching wheel 18 and the lower punching wheel 21 in succession, the upper punching wheel 18 first causes the nearest punching rod 11 among the two adjacent punching rods 11 to enter the nearest through hole 12 to compress the powder into tablets, and then compresses the powder in the through hole 12 of the other placement part into tablets. After the powder in the placement section closest to the upper stamping roller 18 forms a tablet, the arc-shaped surface of the lower stamping roller 21 then contacts the push rod 13 corresponding to the placement section and moves the push rod 13 upward, causing the tablet in the placement section to be ejected. This allows the tablets and powder in the two adjacent through holes 12 to be ejected and stamped simultaneously. After being ejected, the tablets and powder come into contact with the guide plate 30 under the drive of the intermediate stamping die 6. The guide plate 30 sequentially guides the remaining unformed powder and multiple tablets into the feeding bin 22. The tablets and powder slide through the feeding bin 22 onto the filter plate 25. The powder falls into the powder hopper 27 below the filter plate 25, while the tablets slide through the filter plate 25 into the tablet hopper 26, thus achieving the separation of tablets and powder.

[0074] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0075] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A rotary tablet press for pharmaceutical tableting, comprising a tablet press body (1), the tablet press body (1) having a first mounting body (31) and a second mounting body (32) facing each other in the vertical direction, a fixing frame (3) being provided between the first mounting body (31) and the second mounting body (32), characterized in that, Also includes: A rotating mechanism is rotatably connected to the first mounting body (31), and the rotating mechanism is provided with a plurality of placement parts for accommodating medicine powder; A stamping mechanism, connected to the first mounting body (31), is used to stamp the powder in the placement part into tablets when the rotating mechanism rotates; An ejection mechanism, connected to the fixed frame (3), is used to eject the tablets and residual powder in the placement section when the rotating mechanism rotates; as well as, The separation mechanism (2) is connected to the fixed frame (3). The separation mechanism (2) includes a guide structure and a sieving structure. The guide structure is used to guide the ejected tablets and the residual powder to the sieving structure when the rotating mechanism rotates, so that the sieving structure can separate the tablets and the residual powder.

2. The rotary tablet press for pharmaceutical tableting according to claim 1, characterized in that, The rotating mechanism includes: A drive motor (7) is mounted on the first mounting body (31); The mounting post (4) is rotatably inserted through the first mounting body (31) and connected to the output shaft end of the drive motor (7); and, The punching die (6) is arranged in a ring shape. The inner ring surface of the punching die (6) is fixedly connected to the outer surface of the mounting column (4). The punching die (6) is provided with a plurality of placement parts arranged at intervals along its circumference.

3. The rotary tablet press for pharmaceutical tableting according to claim 2, characterized in that, The stamping mechanism includes: The upper punch (5) is arranged in a ring shape. The upper punch (5) is provided with a plurality of first through holes (23). The inner ring surface of the upper punch (5) is fixedly connected to the outer surface of the mounting post (4). Multiple stamping rods (11) are movably inserted through the first through hole (23); A first elastic element (33) is disposed within the first through hole (23) and sleeved on the stamping rod (11). The two ends of the first elastic element (33) are respectively fixedly connected to the stamping rod (11) and the inner wall of the first through hole (23); and... The upper stamping wheel (18) is connected to the first mounting body (31) so that when the upper stamping die (5) rotates, it can abut against the stamping rod (11) and cause the stamping rod (11) to move downward into the placement part to stamp the powder.

4. The rotary tablet press for pharmaceutical tableting according to claim 3, characterized in that, The placement part includes a through hole (12) corresponding to the first through hole (23) and the second through hole (24), and the ejection mechanism includes: The lower punch is arranged in a ring shape. The lower punch has multiple second through holes (24). The inner ring surface of the lower punch is fixedly connected to the outer surface of the mounting post (4). Multiple push rods (13) are movably inserted through the second through hole (24), and the part of the push rod (13) that extends out of the lower punch mold is slidably and sealingly connected to the inner wall of the through hole (12); A limiting member (14) is fixedly sleeved on the outer surface of the push rod (13) and can abut against the upper surface of the lower punch; and, The lower punch roller (21) is connected to the fixed frame (3) so that when the lower punch die rotates, it can abut against the push rod (13) and make the push rod (13) move upward to push the tablet out of the through hole (12).

5. The rotary tablet press for pharmaceutical tableting according to claim 4, characterized in that, The upper stamping wheel (18) is fixedly connected to a first drive shaft (17), one end of the first drive shaft (17) is rotatably connected to the first mounting body (31), and the other end is fixedly connected to a first bevel gear; The lower stamping wheel (21) is fixedly fitted with a second drive shaft (20), one end of the second drive shaft (20) is rotatably connected to the fixed frame (3), and the other end is fixedly connected to a second bevel gear (16); The mounting column (4) is fixedly mounted with a first drive column (8) and a second drive column (9) at both ends. The first drive column (8) is provided with a third bevel gear (19)(10) that meshes with the first bevel gear, and the second drive column (9) is provided with a fourth bevel gear (15) that meshes with the second bevel gear (16). The first drive column (8) is fixedly connected to the output shaft end of the drive motor (7), and the cross-sectional diameters of the first drive column (8) and the second drive column (9) are both smaller than the cross-sectional diameter of the mounting column (4).

6. The rotary tablet press for pharmaceutical tableting according to claim 4, characterized in that, The screening structure includes a filter plate (25), a tablet hopper (26), and a powder hopper (27). One end of the filter plate (25) is fixedly connected to the tablet hopper (26). The tablet hopper (26) and the powder hopper (27) are fixedly connected, and the powder hopper (27) is located directly below the filter plate (25). The powder hopper (27) is provided with a mounting plate (28), and the mounting plate (28) is detachably connected to the fixing frame (3). The guiding structure includes a feeding bin (22) and a guide plate (30) connected to each other. The feeding bin (22) is fixedly connected to the other end of the filter plate (25). The guide plate (30) is located between the upper punch (5) and the middle punch (6) so as to guide the tablet to the feeding bin (22). The inner bottom wall of the feeding bin (22) and the filter plate (25) are both inclined.

7. The rotary tablet press for pharmaceutical tableting according to claim 6, characterized in that, The feed hopper (22) is connected to powder extraction components on both sides. The powder extraction components are connected to the powder hopper (27) to extract the powder in the feed hopper (22) into the powder hopper (27).

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