Automatic demolding structure for medicine tabletting

Abstract

The utility model discloses an automatic demolding structure for medicine tabletting. The automatic demolding structure comprises a base, a plurality of pressing grooves are evenly formed in the top face of the base, lower mold plates are arranged in the pressing grooves in a sliding mode, a movable plate is arranged in the base, a plurality of springs are evenly and fixedly connected to the top face of the movable plate, and the top ends of the springs are fixedly connected with the bottom faces of the corresponding lower mold plates. A fixing frame is fixedly connected to the side wall of the base, a pressing plate is slidably arranged on the top of the side, close to the base, of the fixing frame, and a plurality of upper molds are fixedly connected to the bottom face of the pressing plate and correspond to the pressing grooves one to one. According to the utility model, the upper die and the lower die plate are matched through components, so that medicines can be extruded in two directions, the lower die plate can be finely adjusted in a self-adaptive manner along with compression of the tablets, the tablets are ensured to be subjected to vertical and uniform pressure in the material pressing groove, non-uniform density of the tablets caused by non-uniform stress is avoided, and the lower die plate can dynamically and slightly move in the tablet pressing process, so that the tablet pressing efficiency is improved. Friction retention between the tablets and the inner wall of the mold is reduced, and the mold sticking risk is reduced.

Description

Technical Field

[0001] This utility model relates to the field of pharmaceutical manufacturing technology, and in particular to an automatic demolding structure for pharmaceutical tablets. Background Technology

[0002] A tablet compressor, also known as a tablet punching machine, is a machine that compresses powdered and granular materials into tablets for the production of tablet drugs. The tablet release mechanism is a key functional component in pharmaceutical tablet production equipment. It is primarily used to safely and completely separate the compressed tablets from the mold (such as the pressing groove or die hole), preventing tablet breakage or adhesion to the mold, while ensuring the continuity and automation efficiency of tablet production.

[0003] In this regard, Chinese utility model patent with authorization announcement number CN222061317U discloses an integrated structure for feeding, pressing and demolding of pharmaceutical tablets, including a mold plate in the middle for holding pharmaceutical powder, a presser that moves up and down along a fixed track at the top of the mold plate, and a unloader that moves up and down along a fixed track at the bottom of the mold plate.

[0004] However, current drug tableting and demolding structures have the following defects: the pressure on the raw materials during the tableting process is usually uneven, resulting in uneven tablet density, and there is also a risk that the tablets will stick to the compression tank during the tableting process.

[0005] Therefore, we propose an automatic demolding structure for drug tablets to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide an automatic demolding structure for drug tablets, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an automatic tablet demolding structure for pharmaceuticals, including a base, a plurality of pressing grooves evenly opened on the top surface of the base, a lower template slidably arranged inside the pressing grooves, a movable plate arranged inside the base, a plurality of springs evenly fixedly connected to the top surface of the movable plate, and the top end of the springs being fixedly connected to the bottom surface of the corresponding lower template.

[0008] A fixing frame is fixedly connected to the side wall of the base. A pressure plate is slidably arranged on the top side of the fixing frame near the base. Multiple upper molds are fixedly connected to the bottom surface of the pressure plate. Each upper mold corresponds to a pressing groove.

[0009] Preferably, the fixing frame has a sliding groove on the side near the pressure plate, and a slider is slidably disposed inside the sliding groove, with the side wall of the slider being fixedly connected to the side wall of the pressure plate.

[0010] Preferably, a first lead screw is rotatably disposed inside the slide groove, and a lead hole is provided on the slider. The first lead screw is connected to the lead hole. A motor is fixedly connected to the top surface of the fixing frame, and the top end of the first lead screw passes through the fixing frame and is fixedly connected to the rotating shaft of the motor.

[0011] Preferably, the base has a first square cavity inside, the movable plate is slidably disposed inside the first square cavity, a second lead screw is rotatably disposed in the middle of the first square cavity, the movable plate has a thread hole in the middle, the second lead screw is connected to the thread hole, and the first square cavity is connected to the pressing groove.

[0012] Preferably, the base and the fixing frame have a second square cavity at the bottom. The second square cavity is provided with a first transmission wheel, a second transmission wheel and a transmission belt. The first transmission wheel is fixedly sleeved on the bottom outer periphery of the second lead screw. A rotating rod is fixedly connected to the bottom end of the first lead screw. The second transmission wheel is fixedly sleeved on the bottom outer periphery of the rotating rod. Both the first transmission wheel and the second transmission wheel are connected to the transmission belt.

[0013] Preferably, the diameter of the first transmission wheel is larger than the diameter of the second transmission wheel, and the thread direction of the second lead screw is opposite to that of the first lead screw.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. In this utility model, the upper mold and the lower template can perform bidirectional extrusion of the medicine through the cooperation of the components. The lower template can adaptively adjust as the tablet is compressed to ensure that the tablet is subjected to vertical and uniform pressure in the pressing groove, avoiding uneven pressure that leads to uneven tablet density. In addition, the lower template can dynamically move slightly during the tableting process, reducing friction and retention between the tablet and the inner wall of the mold, and reducing the risk of sticking to the mold.

[0016] 2. In this utility model, during the tableting process, the spring can absorb the instantaneous impact load and prevent the tablet from being over-compressed due to excessive pressure. After tableting is completed, the buffering effect of the spring allows the lower mold to apply a flexible pushing force to the tablet when demolding, thereby pushing the tablet vertically out of the pressing groove and avoiding tablet damage caused by rigid collision. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a cross-sectional schematic diagram of the present invention.

[0019] Figure 3 This utility model Figure 2 Enlarged diagram of point A in the middle.

[0020] In the diagram: 1. Base; 11. Pressure groove; 12. Lower template; 13. Moving plate; 14. Spring; 15. First square cavity;

[0021] 2. Fixed frame; 21. Rotating rod; 22. Slide groove; 23. Sliding block; 24. First lead screw; 25. Motor;

[0022] 3. Pressure plate; 31. Upper mold;

[0023] 4. Second square cavity; 41. First transmission wheel; 42. Second transmission wheel; 43. Transmission belt; 44. Second lead screw. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1:

[0026] Please see Figure 1-2 This utility model provides a technical solution: an automatic tableting demolding structure for pharmaceuticals, including a base 1, with multiple pressing grooves 11 evenly distributed on the top surface of the base 1, a lower template 12 slidably disposed inside the pressing grooves 11, a movable plate 13 disposed inside the base 1, and multiple springs 14 evenly and fixedly connected to the top surface of the movable plate 13, with the top of the springs 14 fixedly connected to the bottom surface of the corresponding lower template 12; when pharmaceutical raw materials are placed into the pressing grooves 11 and tableting is required, the movable plate 13 moves upward, and the movement of the movable plate 13 drives the springs 14 and the lower template 12 to move upward.

[0027] A fixed frame 2 is fixedly connected to the side wall of the base 1. A pressure plate 3 is slidably set on the top of the fixed frame 2 near the base 1. Multiple upper molds 31 are fixedly connected to the bottom surface of the pressure plate 3. The upper molds 31 correspond one-to-one with the pressing grooves 11. When tableting, the pressure plate 3 is moved. The movement of the pressure plate 3 drives the upper molds 31 at the bottom to move. The upper molds 31 are pressed down into the pressing grooves 11. The upper molds 31 and the lower template 12 compact the drug raw materials and complete the tableting work.

[0028] Example 2:

[0029] Please see Figure 1-3This is the second embodiment of the present invention. This embodiment is based on the previous embodiment. The fixed frame 2 has a sliding groove 22 on the side near the pressure plate 3. A slider 23 is slidably arranged inside the sliding groove 22. The side wall of the slider 23 is fixedly connected to the side wall of the pressure plate 3. When the slider 23 is moved, the slider 23 moves in the sliding groove 22, and the movement of the slider 23 drives the pressure plate 3 to move.

[0030] The slide 22 is rotatably equipped with a first lead screw 24, and the slider 23 is provided with a threaded hole. The first lead screw 24 is connected to the threaded hole. The top surface of the fixed frame 2 is fixedly connected to a motor 25. The top end of the first lead screw 24 passes through the fixed frame 2 and is fixedly connected to the rotating shaft of the motor 25. When the motor 25 is turned on, the motor 25 drives the slider 23 to move in the slide 22 through the first lead screw 24.

[0031] The base 1 has a first square cavity 15 inside, and the movable plate 13 is slidably disposed inside the first square cavity 15. A second lead screw 44 is rotatably disposed in the middle of the first square cavity 15, and a thread hole is disposed in the middle of the movable plate 13. The second lead screw 44 is connected to the thread hole. The first square cavity 15 is connected to the pressing groove 11. The rotation of the second lead screw 44 drives the movable plate 13 to move in the first square cavity 15. The movement of the movable plate 13 drives the spring 14 to move and the lower template 12 on it to move.

[0032] The base 1 and the fixing frame 2 have a second square cavity 4 at their bottom. The second square cavity 4 contains a first transmission wheel 41, a second transmission wheel 42, and a transmission belt 43. The first transmission wheel 41 is fixedly sleeved on the bottom outer circumference of the second lead screw 44. The bottom end of the first lead screw 24 is fixedly connected to a rotating rod 21. The second transmission wheel 42 is fixedly sleeved on the bottom outer circumference of the rotating rod 21. Both the first transmission wheel 41 and the second transmission wheel 42 are connected to the transmission belt 43. When the first lead screw 24 rotates, it drives the rotating rod 21 to rotate. The rotation of the rotating rod 21 drives the second transmission wheel 42 to rotate. The second transmission wheel 42 drives the first transmission wheel 41 to rotate through the transmission belt 43. The rotation of the first transmission wheel 41 drives the second lead screw 44 to rotate.

[0033] The diameter of the first transmission wheel 41 is larger than the diameter of the second transmission wheel 42, and the thread direction of the second lead screw 44 is opposite to that of the first lead screw 24. The diameter of the first transmission wheel 41 is larger than the diameter of the second transmission wheel 42, and the pressure plate 3 and the moving plate 13 move different distances. When the pressure plate 3 moves a longer distance, the moving plate 13 moves a shorter distance. The thread direction of the second lead screw 44 is opposite to that of the first lead screw 24, which can make the pressure plate 3 and the moving plate 13 move in opposite directions.

[0034] Example 3:

[0035] Please see Figure 1-3This is the third embodiment of the present invention, based on the above two embodiments. In use, the pharmaceutical raw material is placed in the pressing groove 11, and the motor 25 is turned on. The motor 25 drives the slider 23 to move within the sliding groove 22 via the first lead screw 24. The movement of the slider 23 causes the pressing plate 3 and the upper mold 31 to move. The upper mold 31 moves to the pressing groove 11. Simultaneously, the rotation of the first lead screw 24 drives the rotating rod 21 to rotate, which in turn drives the second transmission wheel 42 to rotate. The second transmission wheel 42 drives the first transmission wheel 41 to rotate via the transmission belt 43. The rotation of the first transmission wheel 41 drives the second lead screw 44 to rotate, which in turn drives the moving plate 13 to move within the first square cavity 15. The movement of the moving plate 13 causes the spring 14 to move, which in turn drives the lower template 12 on top of it to move. The cooperation between the lower template 12 and the upper mold 31 compresses the pharmaceutical raw material, compacting it. During the pressing process, the spring 14 is compressed. After tableting is completed... The upper mold 31 moves upward, and the cooperation of the components causes the moving plate 13 to drive the spring 14 and the lower template 12 to move downward. When the upper mold 31 moves away from the pressing groove 11, the spring 14 uses its elasticity to eject the medicine. In this invention, the upper mold 31 and the lower template 12 can perform bidirectional compression of the medicine through the cooperation of the components. The lower template 12 can adaptively adjust with the compression of the tablet to ensure that the tablet is subjected to vertical and uniform pressure in the pressing groove 11, avoiding uneven pressure that leads to uneven tablet density. In addition, the lower template 12 can dynamically move slightly during the tableting process, reducing friction and retention between the tablet and the inner wall of the mold, and reducing the risk of sticking. In this invention, during the tableting process, the spring 14 can absorb instantaneous impact loads to prevent excessive compression of the tablet due to excessive pressure. After the tableting is completed, the buffering effect of the spring 14 allows the lower template 12 to apply a flexible pushing force to the tablet when demolding, thereby pushing the tablet vertically out of the pressing groove 11 and avoiding tablet damage caused by rigid collision.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A medicine tablet automatic demolding structure comprising a base (1), characterized in that: The base (1) has a plurality of pressing grooves (11) evenly opened on its top surface. A lower template (12) is slidably arranged inside the pressing groove (11). A movable plate (13) is arranged inside the base (1). A plurality of springs (14) are evenly fixedly connected to the top surface of the movable plate (13). The top of the spring (14) is fixedly connected to the bottom surface of the corresponding lower template (12). The base (1) is fixedly connected to a fixing frame (2) on its side wall. A pressure plate (3) is slidably arranged on the top of the fixing frame (2) near the base (1). Multiple upper molds (31) are fixedly connected to the bottom surface of the pressure plate (3). The upper molds (31) correspond one-to-one with the pressing grooves (11).

2. The automatic demolding structure for tabletting of pharmaceutical products according to claim 1, characterized in that: The fixing frame (2) has a sliding groove (22) on the side near the pressure plate (3), and a slider (23) is slidably arranged inside the sliding groove (22). The side wall of the slider (23) is fixedly connected to the side wall of the pressure plate (3).

3. The automatic demolding structure for tablet according to claim 2, characterized in that: The slide groove (22) is rotatably provided with a first lead screw (24), the slider (23) is provided with a thread hole, the first lead screw (24) is connected to the thread hole, the top surface of the fixed frame (2) is fixedly connected with a motor (25), the top end of the first lead screw (24) passes through the fixed frame (2) and is fixedly connected to the shaft of the motor (25).

4. The automatic demolding structure for tablet according to claim 3, characterized in that: The base (1) has a first square cavity (15) inside. The movable plate (13) is slidably disposed inside the first square cavity (15). A second lead screw (44) is rotatably disposed in the middle of the first square cavity (15). A wire hole is disposed in the middle of the movable plate (13). The second lead screw (44) is connected to the wire hole. The first square cavity (15) is connected to the pressing groove (11).

5. The automatic demolding structure for tablet according to claim 4, characterized in that: The base (1) and the fixing frame (2) have a second square cavity (4) at the bottom. The second square cavity (4) is provided with a first transmission wheel (41), a second transmission wheel (42) and a transmission belt (43). The first transmission wheel (41) is fixedly sleeved on the bottom outer periphery of the second lead screw (44). The bottom end of the first lead screw (24) is fixedly connected to a rotating rod (21). The second transmission wheel (42) is fixedly sleeved on the bottom outer periphery of the rotating rod (21). The first transmission wheel (41) and the second transmission wheel (42) are both connected to the transmission belt (43).

6. The automatic demolding structure for tablet according to claim 5, wherein: The diameter of the first transmission wheel (41) is larger than the diameter of the second transmission wheel (42), and the thread direction of the second lead screw (44) is opposite to that of the first lead screw (24).

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