Lower die mechanism of pharmaceutical tablet press

By designing a supporting board, roller shaft, rotor axis, from moving gears, transmission gears, servo motors, reducer and electro -hydraulic pushing poles, solve the existing technology Chinese medicine tablets to remove and press the head -pressing head. The problem of inconvenient cleaning of the end surface realizes the automatic launch of the pills and the automatic cleaning of the upper head end surface, which improves the efficiency and safety of the work.

CN222387707UActive Publication Date: 2025-01-24CHONGQING HENGHUA PHARMACEUTICAL CO LTD
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Patent Information

Application Number
CN202323618465.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2023-12-28
Publication Date
2025-01-24
Estimated Expiration
2033-12-28

AI Technical Summary

Technical Problem

The existing pharmaceutical tablet press is not convenient for removing tablets. It is dangerous for staff to manually remove tablets. Cleaning the end face of the head requires manual operation, which increases the labor intensity and fatigue of staff.

Method used

Design a pharmaceutical pressure chip micro -molding mechanism, including support plates, rolling shafts, rotation shafts, from moving gears, transmission gears, servo motors, reducers, and electrical push rods. The automatic cleaning of the end surface of the upper mold is launched.

Benefits of technology

It realizes the automatic push-out of tablets, reduces the labor intensity and fatigue of workers, and improves work efficiency and safety through the automatic cleaning function.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a pharmaceutical tablet press lower die mechanism which comprises two supporting plates, the two supporting plates are arranged left and right, a same roll shaft is arranged between the two supporting plates, and a rotating shaft is arranged at the circle center of the left side and the circle center of the right side of the roll shaft in a penetrating mode. Power can be transmitted to a speed reducer by starting a servo motor, a square rod is driven to rotate slowly, a rotating shaft is driven to rotate through transmission connection of a square hole round pipe, a transmission gear and a driven gear, the rotating shaft rotates to drive a roller shaft to rotate, the roller shaft rotates by 180 degrees, and the positions of an extrusion module and a cleaning brush are turned; when an electric-hydraulic push rod is started to pull two connecting plates to move towards one side close to an extrusion module, a bottom plate can be driven to move, and adjacent push plates are driven to slide downwards through a plurality of ejector rods, so that tablets in an inner cavity of a tablet pressing groove can be pushed out, a worker can conveniently collect the tablets, and the labor intensity of collecting the tablets is reduced.
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Description

Technical Field

[0001] The utility model relates to the technical field of pharmaceutical tablet presses, in particular to a lower die mechanism for a pharmaceutical tablet press. Background Art

[0002] Pharmaceutical tablet presses generally include a frame, an upper die mechanism installed on the frame, a lower die mechanism matched with the upper die mechanism, and a feeder. They are essential devices in the pharmaceutical field and are used to press drug powder into tablets.

[0003] The current pharmaceutical tablet press is not convenient for removing tablets. After the tablets are formed, the staff usually needs to reach into the mold to remove the tablets. There is a certain risk for the staff to take the tablets by hand, and when the downward pressure is too large, the tablets are very difficult to take out. In addition, in order to maintain the cleanliness of the end face of the upper mold pressure head after tableting, the staff is required to manually clean the end face of the upper mold pressure head. Whether it is manual tablet removal or manual cleaning of the pressure head, it will increase the workload of the staff. Long-term manual work will easily cause the staff to fatigue and reduce work efficiency, so it is improved. Utility Model Content

[0004] The utility model aims to provide a lower die mechanism for a pharmaceutical tablet press to solve the problems mentioned in the above background technology.

[0005] The technical scheme of the utility model is a lower mold mechanism of a pharmaceutical tablet press, comprising two support plates, and the two support plates are arranged on the left and right sides, a same roller shaft is arranged between the two support plates, and a rotating shaft is commonly penetrated at the center of the left and right sides of the roller shaft, bearings are fixedly connected on the two support plates near the top, the left end of the rotating shaft penetrates the adjacent bearing cavity, and the right end of the rotating shaft penetrates the adjacent bearing cavity and is fixedly connected with a driven gear, the bottom of the driven gear is meshed with a transmission gear, and a square hole round tube is penetrated at the center of the upper circle of the transmission gear, the left end of the square hole round tube is rotatably connected to the adjacent support plate, and the right end of the inner cavity of the square hole round tube is plugged with a square rod matching it, a fixing frame is fixedly connected to the right bottom of the right side of the support plate located on the right side, and a first rectangular slide groove is opened at the top right side of the fixing frame, the right side of the first rectangular slide groove is open, and the inner cavity of the first rectangular slide groove is movably connected with a first rectangular slider, the top of the first rectangular slider is fixedly connected with a mounting plate, and a servo motor is fixedly installed at the top right side of the mounting plate The machine comprises a reducer fixedly installed on the left side of the top of the mounting plate, and the power output end of the servo motor is fixedly connected to the input end of the reducer, and the output end of the reducer is fixedly connected to the right end of the square rod, and the left and right ends of the top of the roller shaft are fixedly connected with fixed plates, and the other sides of the two fixed plates are commonly fixedly connected with an extrusion module, and the surface of the extrusion module is provided with a plurality of tabletting grooves, and the bottom of the inner cavity of the plurality of tabletting grooves is provided with a first through hole, and the bottom of the inner cavity of the plurality of tabletting grooves is fitted with a push plate, A push rod is fixedly connected to the bottom of the push plate, and the bottom ends of several of the push rods respectively penetrate the adjacent first perforated cavities and are commonly fixedly connected to the bottom plate. Connecting plates are fixedly connected to the left and right sides of the bottom plate, and the two fixed plates are provided with limiting grooves that match the connecting plates, and the two connecting plates are further away from each other and respectively penetrate the adjacent limiting groove cavities. Electro-hydraulic push rods are fixedly installed on the left and right sides of the extrusion module, and the power end of the electro-hydraulic push rods is fixedly connected to the adjacent connecting plates. A cleaning mechanism is provided at the bottom of the roller shaft.

[0006] In one embodiment, the cleaning mechanism includes two electric telescopic rods, and the two electric telescopic rods are respectively fixedly connected to the bottom of the roller shaft near the left and right ends, the power ends of the two electric telescopic rods are commonly fixedly connected to a cross plate, and the bottom of the cross plate near the left and right sides are provided with T-shaped slide grooves, the front sides of the two T-shaped slide grooves are open, and the inner cavities of the two T-shaped slide grooves are movably connected to T-shaped sliders, and the bottoms of the two T-shaped sliders are commonly fixedly connected to a cleaning brush.

[0007] In one embodiment, the top of the horizontal plate near the left and right sides is fixedly connected to a limiting telescopic rod, and the top end of the limiting telescopic rod is fixedly connected to the bottom of the roller shaft.

[0008] In one embodiment, a limiting groove is provided at the middle position of the top of the cross plate, and movable blocks are movably connected to the left and right sides of the inner cavity of the limiting groove, and second rectangular sliders are fixedly connected to the front and rear sides of the two movable blocks, and second rectangular slide grooves are provided on the front and rear sides of the inner cavity of the limiting groove, and several of the second rectangular slide sliders are movably connected to adjacent second rectangular slide groove inner cavities, a same first spring is provided between the two movable blocks, and the left and right ends of the first spring are respectively fixedly connected to adjacent movable blocks, through holes are provided on the left and right sides of the inner cavity of the limiting groove, and the inner cavity of the through holes is connected to the inner cavity of adjacent T-shaped slide grooves, blind holes are provided on adjacent sides of the two T-shaped sliders, and rods are inserted into the inner cavities of the blind holes, and adjacent ends of the two rods pass through adjacent through holes respectively and are fixedly connected to adjacent movable blocks respectively.

[0009] In one embodiment, the tops of the two movable blocks are fixedly connected with an L-shaped plate, and the other side of the L-shaped plate is fixedly connected with a paddle.

[0010] In one embodiment, a second through hole is opened at the bottom of the fixing frame near the right side, and a T-shaped rod is passed through the inner cavity of the second through hole. A second spring is sleeved on the outer side of the T-shaped rod, and the upper and lower ends of the second spring are fixedly connected to the fixing frame and the T-shaped rod respectively.

[0011] In one embodiment, the left side of the first rectangular sliding block is in contact with the left side wall of the inner cavity of the first rectangular sliding groove, and the right side of the first rectangular sliding block is in contact with the T-shaped rod.

[0012] The beneficial effects provided by the utility model are:

[0013] 1. By starting the servo motor, the power can be transmitted to the reducer and the square rod can be driven to rotate slowly. The transmission connection of the square hole round tube, the transmission gear and the driven gear can drive the rotating shaft to rotate. The rotation of the rotating shaft drives the roller shaft to rotate, so that the roller shaft rotates 180 degrees and the extrusion module and the cleaning brush are reversed. Then, when the electro-hydraulic push rod is started to pull the two connecting plates to the side close to the extrusion module, the bottom plate can be driven to move, and the adjacent push plates can be driven to slide downward through a number of push rods, so that the tablets in the inner cavity of the tableting groove can be pushed out, which is convenient for the staff to collect the tablets and reduces the labor intensity of their collection.

[0014] 2. By starting the electric telescopic rod, the cross plate can be pushed to move to the side away from the roller shaft, and the cross plate can be limited vertically by the extension and retraction of the two limit telescopic rods, thereby driving the cleaning brush to approach the end surface of the upper die pressing head, and when the servo motor is started to drive the roller shaft to reset, the end surface of the upper die pressing head can be automatically cleaned, thereby reducing the labor intensity of cleaning. In addition, by pressing the two paddles relative to each other with fingers, the two movable blocks can be driven to move relative to each other through the two L-shaped plates and squeeze the first spring. The relative movement of the two movable blocks drives the two plug rods to move relative to each other, and the ends of the two plug rods that are away from each other are respectively pulled out from the adjacent blind hole cavities. When the cleaning brush is pushed to move to the front side, the two T-shaped sliders can be separated from the adjacent T-shaped slide groove cavities, thereby facilitating the removal of the cleaning brush for cleaning, thereby improving its cleaning effect.

[0015] 3. By pulling the T-shaped rod downward and driving the second spring to extend downward, the top end of the T-shaped rod can be retracted into the second perforated inner cavity. Then, when the mounting plate is pushed to the right, the square rod can be detached from the inner cavity of the square hole round tube, and the first rectangular slider can be detached from the inner cavity of the first rectangular slide groove, so that the servo motor and the reducer can be removed from the fixed frame, which is convenient for the staff to inspect and maintain the servo motor and the reducer, and is conducive to improving the efficiency of their inspection and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a top sectional view of the horizontal plate of the utility model component;

[0018] Figure 3 for Figure 1 Enlarged view of point A in the middle;

[0019] Figure 4 for Figure 1 Enlarged view of point B in the middle.

[0020] In the attached drawings, 1, support plate; 2, roller shaft; 3, rotating shaft; 4, fixed plate; 5, extrusion module; 6, pressing plate groove; 7, push plate; 8, push rod; 9, bottom plate; 10, connecting plate; 11, electro-hydraulic push rod; 12, electric telescopic rod; 13, cross plate; 14, cleaning brush; 15, second spring; 16, limit telescopic rod; 17, driven gear; 18, transmission gear; 19, square hole round tube; 20, square rod; 21, reducer; 22, servo motor; 23, mounting plate; 24, fixed frame; 25, movable block; 26, first spring; 27, plug rod; 28, L-shaped plate; 29, paddle; 30, T-shaped rod. DETAILED DESCRIPTION

[0021] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present invention can be combined with each other. The technical solution of the present invention will be further described below in conjunction with the drawings of the embodiments of the present invention, and the present invention is not limited to the following specific implementation methods.

[0022] It should be understood that the same or similar numbers in the drawings of the embodiments correspond to the same or similar parts. In the description of the present utility model, it should be understood that if there are terms such as "upper", "lower", "front", "back", "left", "right", "top", "bottom" and the like indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0023] In one embodiment, Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, a lower mold mechanism of a pharmaceutical tablet press comprises two support plates 1, and the two support plates 1 are arranged on the left and right sides, a same roller shaft 2 is arranged between the two support plates 1, and a rotating shaft 3 is penetrated at the center of the left and right sides of the roller shaft 2, and the two support plates 1 are fixedly connected with bearings near the top, the left end of the rotating shaft 3 penetrates the inner cavity of the adjacent bearing, and the right end of the rotating shaft 3 penetrates the inner cavity of the adjacent bearing, and is fixedly connected with a driven gear 17, the bottom of the driven gear 17 is meshed with a transmission gear 18, and a square hole circular tube 19 is penetrated at the center of the transmission gear 18, the left end of the square hole circular tube 19 is rotatably connected to the adjacent support plate 1, and the right end of the inner cavity of the square hole circular tube 19 is plugged with a corresponding The matching square rod 20 is fixedly connected with a fixing frame 24 at the bottom right side of the support plate 1 on the right side, and a first rectangular slide is provided at the top right side of the fixing frame 24, the right side of the first rectangular slide is open, and the inner cavity of the first rectangular slide is movably connected with a first rectangular slider, the top of the first rectangular slider is fixedly connected with a mounting plate 23, and a servo motor 22 is fixedly installed at the top right side of the mounting plate 23, a reducer 21 is fixedly installed at the top left side of the mounting plate 23, and the power output end of the servo motor 22 is fixedly connected to the input end of the reducer 21, and the output end of the reducer 21 is fixedly connected to the right end of the square rod 20, and the bottom of the fixing frame 24 is close to the right side. A second through hole is provided at the roller shaft 2, and a T-shaped rod 30 is penetrated through the inner cavity of the second through hole. A second spring 15 is sleeved on the outer side of the T-shaped rod 30, and the upper and lower ends of the second spring 15 are fixedly connected to the fixing frame 24 and the T-shaped rod 30 respectively. The left side of the first rectangular slider fits with the left side wall of the inner cavity of the first rectangular slide, and the right side of the first rectangular slider fits with the T-shaped rod 30, which improves the stability of the mounting plate 23 after installation and facilitates its disassembly and assembly. The left and right ends of the top of the roller shaft 2 are fixedly connected with fixing plates 4, and the other sides of the two fixing plates 4 are fixedly connected with an extrusion module 5. The surface of the extrusion module 5 is provided with a plurality of pressing sheet grooves 6, and the plurality of pressing sheet grooves The bottom of the inner cavity of the groove 6 is provided with a first perforation, the bottom of the inner cavity of several pressing grooves 6 is fitted with a push plate 7, and the bottom of the push plate 7 is fixedly connected with a push rod 8, the bottom ends of several push rods 8 respectively penetrate the adjacent first perforated inner cavity, and are fixedly connected with a bottom plate 9, the left and right sides of the bottom plate 9 are fixedly connected with a connecting plate 10, the two fixed plates 4 are provided with a limiting groove matching with the connecting plate 10, and the two sides of the two connecting plates 10 that are away from each other penetrate the adjacent limiting groove inner cavity, the left and right sides of the extrusion module 5 are fixedly installed with an electro-hydraulic push rod 11, and the power end of the electro-hydraulic push rod 11 is fixedly connected with the adjacent connecting plate 10, and a cleaning mechanism is provided at the bottom of the roller shaft 2;

[0024] The cleaning mechanism includes two electric telescopic rods 12, and the two electric telescopic rods 12 are respectively fixedly connected to the bottom of the roller shaft 2 near the left and right ends, the power ends of the two electric telescopic rods 12 are commonly fixedly connected to a cross plate 13, and the bottom of the cross plate 13 near the left and right sides are provided with T-shaped slides, the front sides of the two T-shaped slides are both open, and the inner cavities of the two T-shaped slides are movably connected with T-shaped sliders, the bottoms of the two T-shaped sliders are commonly fixedly connected with a cleaning brush 14, the top of the cross plate 13 near the left and right sides are fixedly connected with a limited telescopic rod 16, and the top of the limited telescopic rod 16 is fixedly connected to the bottom of the roller shaft 2, a limited groove is provided in the middle position of the top of the cross plate 13, and the inner cavity of the limited groove is movably connected with movable blocks 25 on both sides, the front and rear sides of the two movable blocks 25 are fixedly connected with a second rectangular slider, and the limiting groove A second rectangular slide groove is provided on both the front and rear sides of the inner cavity, and a plurality of second rectangular sliders are movably connected to the adjacent second rectangular slide groove inner cavities, a same first spring 26 is provided between the two movable blocks 25, and the left and right ends of the first spring 26 are fixedly connected to the adjacent movable blocks 25, the tops of the two movable blocks 25 are fixedly connected to an L-shaped plate 28, and the other side of the L-shaped plate 28 is fixedly connected to a paddle 29, through holes are provided on the left and right sides of the inner cavity of the limiting groove, and the through-hole inner cavity is connected to the adjacent T-shaped slide groove inner cavity, blind holes are provided on the adjacent sides of the two T-shaped sliders, and the blind hole inner cavity is plugged with an insertion rod 27, the adjacent ends of the two insertion rods 27 respectively penetrate the adjacent through holes, and are fixedly connected to the adjacent movable blocks 25, which can automatically clean the end face of the upper mold pressing head and facilitate the disassembly and cleaning of the cleaning brush 14 to improve its cleaning effect.

[0025] Working principle: When the utility model is used, after the tablet is formed, the upper mold component is controlled to rise to a certain height, and then the servo motor 22 and the reducer 21 are started. The servo motor 22 drives the input end of the reducer 21 to rotate, and drives the output end of the reducer 21 to rotate, thereby driving the square rod 20 to rotate, the square rod 20 rotates to drive the square hole round tube 19 to rotate, the square hole round tube 19 rotates to drive the transmission gear 18 to rotate, the transmission gear 18 rotates to drive the driven gear 17 to rotate, the driven gear 17 rotates to drive the rotating shaft 3 to rotate, and drives the roller 2 to rotate 180 degrees, thereby extrusion module 5 and cleaning brush 14 are exchanged. Then, when the electro-hydraulic push rod 11 is started to pull the two connecting plates 10 to move toward the side close to the extrusion module 5, the bottom plate 9 can be driven to move, and the adjacent push plates 7 can be driven to slide downward through a plurality of push rods 8, so that the tablets in the inner cavity of the tablet pressing groove 6 can be pushed out, which is convenient for the staff to collect the tablets, reduces the labor intensity of collecting, and is convenient for batch and continuous processing of tablets. After the tablets are pushed out, the two electro-hydraulic push rods 11 are started to pull the connecting plate 10 to reset, and then, the electric telescopic rod 12 can be started to push the cross plate 13 to move to the side away from the roller shaft 2, and the two limit telescopic rods 16 can be extended to limit the vertical movement of the cross plate 13. The cleaning brush 14 is positioned so as to be close to the end surface of the upper die pressing head. When the servo motor 22 is started to drive the roller shaft 2 to reset, the end surface of the upper die pressing head can be automatically cleaned, thereby reducing the labor intensity of its cleaning. In addition, by pressing the two paddles 29 to move relative to each other with fingers, the two movable blocks 25 can be driven to move relative to each other through the two L-shaped plates 28 and squeeze the first spring 26. The two movable blocks 25 move relative to each other and drive the two insertion rods 27 to move relative to each other, and the ends of the two insertion rods 27 that are away from each other are respectively pulled out from the inner cavities of the adjacent blind holes. When the cleaning brush 14 is pushed to move forward, the two T-shaped sliders can be separated from the inner cavities of the adjacent T-shaped slide grooves respectively, thereby It is convenient to disassemble the cleaning brush 14 for cleaning it, thereby improving its cleaning effect. In addition, by pulling the T-shaped rod 30 downward and driving the second spring 15 to extend downward, the top end of the T-shaped rod 30 can be retracted into the second perforated inner cavity. Then, when the mounting plate 23 is pushed to move to the right, the square rod 20 can be detached from the inner cavity of the square hole round tube 19, and the first rectangular slider can be detached from the inner cavity of the first rectangular slide groove, so that the servo motor 22 and the reducer 21 can be disassembled from the fixing frame 24, which is convenient for the staff to inspect and maintain the servo motor 22 and the reducer 21, and is conducive to improving the efficiency of their inspection and maintenance.

[0026] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0027] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A lower die mechanism for a pharmaceutical tablet press, characterized in that: The invention comprises two support plates, and the two support plates are arranged on the left and right sides, a same roller shaft is arranged between the two support plates, and a rotating shaft is commonly penetrated at the center of the left and right sides of the roller shaft, bearings are fixedly connected to the two support plates near the top, the left end of the rotating shaft penetrates the adjacent bearing cavity, and the right end of the rotating shaft penetrates the adjacent bearing cavity and is fixedly connected with a driven gear, a transmission gear is meshed at the bottom of the driven gear, and a square hole round tube is penetrated at the center of the upper circle of the transmission gear, the left end of the square hole round tube is rotatably connected with the adjacent support plate, and a square rod matching it is inserted at the right end of the inner cavity of the square hole round tube, a fixing frame is fixedly connected to the right bottom of the right side of the support plate on the right side, and a first rectangular slide groove is opened at the top right side of the fixing frame, the right side of the first rectangular slide groove is open, and a first rectangular slider is movably connected to the inner cavity of the first rectangular slide groove, a mounting plate is fixedly connected to the top of the first rectangular slider, and a servo motor is fixedly installed at the top right side of the mounting plate, and the left left of the top of the mounting plate A reducer is fixedly installed on the side, and the power output end of the servo motor is fixedly connected to the input end of the reducer, the output end of the reducer is fixedly connected to the right end of the square rod, and the left and right ends of the top of the roller shaft are fixedly connected with fixed plates, and the other sides of the two fixed plates are commonly fixedly connected with an extrusion module, a plurality of pressing plate grooves are opened on the surface of the extrusion module, and the bottom of the inner cavity of several pressing plate grooves are opened with first perforations, and the bottom of the inner cavity of several pressing plate grooves are fitted with push plates, and the bottom of the push plates is fixedly connected with push rods, and the bottom ends of several push rods respectively penetrate the adjacent first perforated inner cavities and are commonly fixedly connected with the bottom plate, and the left and right sides of the bottom plate are fixedly connected with connecting plates, and the two fixed plates are opened with limiting slots matching the connecting plates, and the two sides of the connecting plates away from each other respectively penetrate the adjacent limiting slot inner cavities, and the left and right sides of the extrusion module are fixedly installed with electro-hydraulic push rods, and the power end of the electro-hydraulic push rod is fixedly connected to the adjacent connecting plate, and a cleaning mechanism is provided at the bottom of the roller shaft.

2. A pharmaceutical tablet press lower die mechanism according to claim 1, characterized in that: The cleaning mechanism includes two electric telescopic rods, and the two electric telescopic rods are respectively fixedly connected to the bottom of the roller shaft near the left and right ends, the power ends of the two electric telescopic rods are commonly fixedly connected to a cross plate, and the bottom of the cross plate near the left and right sides are provided with T-shaped slide grooves, the front sides of the two T-shaped slide grooves are open, and the inner cavities of the two T-shaped slide grooves are movably connected to T-shaped sliders, and the bottoms of the two T-shaped sliders are commonly fixedly connected to a cleaning brush.

3. A pharmaceutical tablet press lower die mechanism according to claim 2, characterized in that: The top of the transverse plate near the left and right sides is fixedly connected with a limiting telescopic rod, and the top end of the limiting telescopic rod is fixedly connected to the bottom of the roller shaft.

4. A pharmaceutical tablet press lower die mechanism according to claim 2, characterized in that: A limiting groove is provided at the middle position of the top of the cross plate, and movable blocks are movably connected to the left and right sides of the inner cavity of the limiting groove, and second rectangular sliders are fixedly connected to the front and rear sides of the two movable blocks, and second rectangular slides are provided on the front and rear sides of the inner cavity of the limiting groove, and several of the second rectangular slides are movably connected to the adjacent second rectangular slide cavities respectively, a same first spring is provided between the two movable blocks, and the left and right ends of the first spring are respectively fixedly connected to the adjacent movable blocks, through holes are provided on the left and right sides of the inner cavity of the limiting groove, and the inner cavity of the through holes is connected to the inner cavity of the adjacent T-shaped slide grooves, blind holes are provided on adjacent sides of the two T-shaped sliders, and rods are inserted into the inner cavity of the blind holes, and adjacent ends of the two rods pass through adjacent through holes respectively and are fixedly connected to adjacent movable blocks respectively.

5. A lower die mechanism for a pharmaceutical tablet press according to claim 4, characterized in that: The tops of the two movable blocks are fixedly connected with an L-shaped plate, and the other side of the L-shaped plate is fixedly connected with a paddle.

6. A pharmaceutical tablet press lower die mechanism according to claim 1, characterized in that: A second through hole is provided at the bottom of the fixing frame near the right side, and a T-shaped rod is passed through the inner cavity of the second through hole. A second spring is sleeved on the outer side of the T-shaped rod, and the upper and lower ends of the second spring are fixedly connected to the fixing frame and the T-shaped rod respectively.

7. A lower die mechanism for a pharmaceutical tablet press according to claim 6, characterized in that: The left side of the first rectangular sliding block is in contact with the left side wall of the inner cavity of the first rectangular sliding groove, and the right side of the first rectangular sliding block is in contact with the T-shaped rod.