Tablet pressing device for medicine tablet production

Abstract

The utility model relates to the technical field of medicine production, in particular to a tablet pressing device for medicine tablet production, which comprises a working table, a raw material box fixedly connected to the top of the working table, a mounting box fixedly connected to the right side of the raw material box, a mounting cylinder fixedly connected to the left side of the raw material box, and a tablet pressing die rotatably mounted at the top of the working table. A plurality of groups of tablet pressing cavities are formed in the tablet pressing die, a feeding assembly for uniformly feeding raw materials into each group of tablet pressing cavities is mounted on the workbench, a tablet pressing assembly for pressing the raw materials into tablets is mounted on the tablet pressing cylinder, and a material ejecting assembly for ejecting tablets out of the tablet pressing cavities is mounted on the workbench. And a feeding assembly for conveying raw materials and tablet finished products is mounted on the mounting box. According to the device, gaps and cavities among raw materials in the tabletting cavities can be eliminated, so that the quantity of the raw materials in each group of tabletting cavities is basically the same, the size and the weight of produced tablets are more uniform, and the product quality is ensured.

Description

Technical Field

[0001] This utility model relates to the field of pharmaceutical production technology, specifically to a tablet compression device for pharmaceutical tablet production. Background Technology

[0002] Drug tableting involves compressing powdered or granular drug ingredients into tablets. From the patient's perspective, tablets are small and regularly shaped, making them easier to swallow than powders or granules, allowing for precise dosage and ensuring accurate medication administration as prescribed. From the drug's perspective, tableting improves stability and reduces the impact of light, air, and moisture. In terms of production, storage, and transportation, tablets can be automated, resulting in high efficiency, low cost, and durable products that are less prone to damage. Furthermore, special processes can control drug release, reducing irritation and improving appearance and taste.

[0003] In drug tableting, powdered or granular drug raw materials are typically placed into extrusion chambers of a specific shape, and then a pressure mechanism applies pressure to compress the raw materials into tablets. To improve production efficiency, multiple extrusion chambers are usually set up. During this process, because the structure of powdered or granular raw materials is relatively loose, gaps and voids may exist between the raw materials after they are placed into the extrusion chambers. This causes differences in the amount of raw materials in each extrusion chamber, resulting in uneven tablet size and weight, which affects product quality. To eliminate gaps and voids between the raw materials in the extrusion chambers and ensure that the amount of raw materials in each extrusion chamber is basically the same, thereby producing tablets with more uniform size and weight and ensuring product quality, we propose a tableting device for drug tablet production. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a tableting device for pharmaceutical tablet production, which can eliminate gaps and voids between raw materials in the extrusion chamber, making the amount of raw materials in each group of extrusion chambers basically the same, thereby making the produced tablets more uniform in size and weight and ensuring product quality.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A tableting device for pharmaceutical tablet production includes a worktable, a raw material box fixedly connected to the top of the worktable, a feed inlet connected to the top of the raw material box, an installation box fixedly connected to the right side of the raw material box, an installation cylinder fixedly connected to the left side of the raw material box, a tableting mold rotatably mounted on the top of the worktable, the tableting mold having several sets of tableting cavities, a feeding assembly mounted on the worktable to ensure uniform entry of raw materials into each set of tableting cavities, a tableting assembly mounted on the tableting cylinder to compress the raw materials, an ejector assembly mounted on the worktable to eject tablets from the tableting cavities, and a feeding assembly mounted on the installation box to convey raw materials and finished tablets.

[0007] The feeding assembly includes a drive rod rotatably connected to the bottom of the inner cavity of the worktable. A drive gear is fixedly sleeved on the outside of the drive rod. A half-tooth disc is fixedly connected to the top of the drive rod. A half-gear is fixedly connected to the bottom of the inner cavity of the half-tooth disc. A rotating rod is fixedly connected to the bottom of the tableting mold. A rotating gear is fixedly connected to the bottom of the rotating rod. The rotating gear meshes with the half-gear and the half-tooth disc. A vibration mechanism that causes the tableting mold to vibrate is installed on the worktable.

[0008] Preferably, the vibration mechanism includes several sets of protrusions, which are fixedly connected to the outside of the tableting mold. Several sets of mounting cavities are opened on the top of the worktable. Impact blocks are slidably mounted on the mounting cavities. The side of the impact block closest to the tableting mold abuts against the tableting mold. A spring is fixedly connected to the side of the impact block away from the tableting mold. The end of the spring away from the impact block is fixedly connected to the inner wall of the mounting cavity.

[0009] Preferably, the feeding assembly includes a feeding cylinder, which is fixedly installed on the inner wall of the mounting box. The output end of the feeding cylinder is fixedly connected to a feeding frame. The raw material box has a first sliding opening that matches the feeding frame. The feeding frame is slidably connected to the first sliding opening. A baffle is fixedly connected to the right side of the feeding frame. A drive mechanism for driving the feeding assembly to operate is installed on the baffle.

[0010] Preferably, the driving mechanism includes a connecting rod, which is fixedly connected to the bottom of the baffle. The top of the worktable has a second sliding opening that matches the connecting rod. The connecting rod is slidably connected to the second sliding opening. A rack is fixedly connected to the bottom of the connecting rod, and the rack meshes with a driving gear.

[0011] Preferably, the tableting assembly includes a tableting cylinder, which is fixedly installed on the top of the mounting cylinder. A pressure plate is fixedly connected to the output end of the tableting cylinder. The outer side of the pressure plate is slidably connected to the inner wall of the mounting cylinder. Several sets of pressure blocks that match the tableting cavity are fixedly connected to the bottom of the pressure plate.

[0012] Preferably, the top material assembly includes a top material cylinder, which is fixedly installed at the bottom of the inner cavity of the workbench. A connecting frame is fixedly connected to the output end of the top material cylinder. A lifting plate is fixedly connected to the top of the connecting frame. A top plate is rotatably connected to the top of the lifting plate. Several sets of top blocks matching the tableting cavity are fixedly connected to the top of the top plate. The rotating rod moves through the lifting plate and slides through the top plate. A limiting ring is fixedly sleeved on the outside of the rotating rod.

[0013] Beneficial effects

[0014] This invention provides a tableting apparatus for pharmaceutical tablet production. Compared with the prior art, it has the following advantages:

[0015] This tableting device for pharmaceutical tablet production uses a feeding cylinder to move the feeding frame to the left, moving the raw material in the feeding frame above the tableting mold. The raw material above the tableting mold falls into the tableting cavity under gravity. At the same time, a baffle moves to the left, blocking the raw material in the raw material box from falling. When the baffle moves, it drives the rack to move to the left through a connecting rod, which in turn drives the drive gear to rotate, causing the tableting mold to rotate back and forth. The rotation of the tableting mold drives the protrusions to rotate. During the rotation of the protrusions, the impact blocks continuously impact the tableting mold, causing the tableting mold to vibrate slightly. Under the dual action of rotation and vibration, gaps and voids between the raw materials in the tableting cavity can be eliminated, making the amount of raw material in each group of tableting cavities basically the same. This results in more uniform tablet size and weight, ensuring product quality. Attached Figure Description

[0016] Figure 1 This is a front view structural diagram of the main body of this utility model;

[0017] Figure 2 This is a schematic diagram of the main cross-sectional structure of the present invention;

[0018] Figure 3 This is a front view structural diagram of the rotating component of this utility model;

[0019] Figure 4 This is a bottom view of the rotating component of this utility model;

[0020] Figure 5 This is a schematic diagram of the cross-sectional structure of the tablet compression mold of this utility model.

[0021] In the diagram: 1. Workbench; 2. Mounting box; 3. Raw material box; 4. Feed inlet; 5. Tableting cylinder; 6. Mounting cylinder; 7. Feeding cylinder; 8. Connecting rod; 9. Rack; 10. Baffle; 11. Feeding frame; 12. Pressure plate; 13. Pressure block; 14. Tableting mold; 15. Top block; 16. Top plate; 17. Ejector cylinder; 18. Connecting frame; 19. Drive rod; 20. Drive gear; 21. Protrusion; 22. Rotating gear; 23. Half gear; 24. Half gear disc; 25. Rotating rod; 26. Lifting plate; 27. Limiting ring; 28. Impact block; 29. ​​Mounting cavity; 30. Spring. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-5 This utility model provides a technical solution: a tableting device for pharmaceutical tablet production, including a workbench 1, a raw material box 3 fixedly connected to the top of the workbench 1, a feed inlet 4 connected to the top of the raw material box 3, an installation box 2 fixedly connected to the right side of the raw material box 3, an installation cylinder 6 fixedly connected to the left side of the raw material box 3, a tableting mold 14 rotatably mounted on the top of the workbench 1, the tableting mold 14 having several sets of tableting cavities, a feeding component installed on the workbench 1 to make the raw material enter each set of tableting cavities evenly, a tableting component installed on the tableting cylinder 5 to tablet the raw material, an ejector component installed on the workbench 1 to eject the tablets from the tableting cavities, and a feeding component installed on the installation box 2 to convey the raw material and the finished tablets;

[0024] The feeding assembly includes a drive rod 19, which is rotatably connected to the bottom of the inner cavity of the worktable 1. A drive gear 20 is fixedly sleeved on the outside of the drive rod 19. A half-tooth disk 24 is fixedly connected to the top of the drive rod 19. A half-gear 23 is fixedly connected to the bottom of the inner cavity of the half-tooth disk 24. A rotating rod 25 is fixedly connected to the bottom of the tableting mold 14. A rotating gear 22 is fixedly connected to the bottom of the rotating rod 25. The rotating gear 22 meshes with the half-gear 23 and the half-tooth disk 24. A vibration mechanism that causes the tableting mold 14 to vibrate is installed on the worktable 1.

[0025] The vibration mechanism includes several sets of protrusions 21, which are fixedly connected to the outside of the tablet pressing mold 14. Several sets of mounting cavities 29 are opened on the top of the worktable 1. Impact blocks 28 are slidably mounted on the mounting cavities 29. The side of the impact block 28 close to the tablet pressing mold 14 abuts against the tablet pressing mold 14. A spring 30 is fixedly connected to the side of the impact block 28 away from the tablet pressing mold 14. The end of the spring 30 away from the impact block 28 is fixedly connected to the inner wall of the mounting cavity 29.

[0026] In use, the raw materials are fed into the raw material box 3 through the feed port 4. The feeding component is controlled to transport the raw materials to the top of the tableting mold 14. The raw materials fall into the tableting cavity under the action of gravity. During this process, the feeding component drives the drive rod 19 to rotate, causing the half gear 23 and the half gear plate 24 to rotate, which in turn drives the rotating gear 22 to rotate back and forth, and drives the tableting mold 14 to rotate back and forth. The rotation of the tableting mold 14 drives the protrusion 21 to rotate. During the rotation of the protrusion 21, it squeezes the impact block 28, causing the impact block 28 to move away from the tableting mold 14. Then, the impact block 28 is reset under the action of the spring 30 and impacts the tableting mold 14, causing the tableting mold 14 to vibrate slightly. Under the dual action of rotation and vibration, the gaps and voids between the raw materials in the tableting cavity can be eliminated, so that the amount of raw materials in each group of tableting cavities is basically the same, thereby making the size and weight of the produced tablets more uniform and ensuring product quality. Then, the tableting component is started to press the raw materials in the tableting cavity into tablets, and then the tablets are ejected by the ejector component.

[0027] The feeding assembly includes a feeding cylinder 7, which is fixedly installed on the inner wall of the mounting box 2. The output end of the feeding cylinder 7 is fixedly connected to a feeding frame 11. The raw material box 3 has a first sliding opening that matches the feeding frame 11. The feeding frame 11 is slidably connected to the first sliding opening. A baffle 10 is fixedly connected to the right side of the feeding frame 11. A drive mechanism for driving the feeding assembly to operate is installed on the baffle 10.

[0028] Start the feeding cylinder 7, which moves the feeding frame 11 to the left and above the tableting mold 14, causing the raw material in the feeding frame 11 to move to the left. At the same time, the baffle 10 moves to the left to block the raw material in the raw material box 3 from falling.

[0029] The drive mechanism includes a connecting rod 8, which is fixedly connected to the bottom of the baffle 10. The top of the worktable 1 has a second sliding opening that matches the connecting rod 8. The connecting rod 8 is slidably connected to the second sliding opening. A rack 9 is fixedly connected to the bottom of the connecting rod 8, and the rack 9 meshes with the drive gear 20.

[0030] When the baffle 10 moves, it drives the rack 9 to move to the left through the connecting rod 8, which drives the drive gear 20 to rotate, causing the drive rod 19 to rotate.

[0031] The tableting assembly includes a tableting cylinder 5, which is fixedly installed on the top of the mounting cylinder 6. A pressure plate 12 is fixedly connected to the output end of the tableting cylinder 5. The outer side of the pressure plate 12 is slidably connected to the inner wall of the mounting cylinder 6. Several sets of pressure blocks 13 that match the tableting cavity are fixedly connected to the bottom of the pressure plate 12.

[0032] Start the tableting cylinder 5, which drives the pressure plate 12 to descend, and drives the pressure block 13 to descend, so that the pressure block 13 is inserted into the tableting cavity on the tableting mold 14, applying a certain pressure to the raw material and pressing the raw material into tablets.

[0033] The feeding assembly includes a feeding cylinder 17, which is fixedly installed at the bottom of the inner cavity of the workbench 1. A connecting frame 18 is fixedly connected to the output end of the feeding cylinder 17. A lifting plate 26 is fixedly connected to the top of the connecting frame 18. A top plate 16 is rotatably connected to the top of the lifting plate 26. Several sets of top blocks 15 that match the tableting cavity are fixedly connected to the top of the top plate 16. A rotating rod 25 moves through the lifting plate 26 and slides through the top plate 16. A limiting ring 27 is fixedly sleeved on the outside of the rotating rod 25.

[0034] After tableting is completed, the control cylinder 17 drives the connecting frame 18 to rise, which in turn drives the lifting plate 26 to rise, causing the top plate 16 to rise, which in turn drives the top block 15 to rise. When the top of the top plate 16 abuts against the top of the inner cavity of the worktable 1, the top of the top block 15 is flush with the top of the worktable 1, thereby ejecting the tablets from the tableting chamber.

[0035] Working principle: During use, raw materials are fed into the raw material box 3 through the feed inlet 4. The feeding cylinder 7 is activated, which moves the feeding frame 11 to the left and above the tableting mold 14, causing the raw materials in the feeding frame 11 to move to the left. At the same time, the baffle 10 moves to the left, blocking the raw materials in the raw material box 3 from falling. The raw materials above the tableting mold 14 fall into the tableting cavity under the action of gravity. During this process, when the baffle 10 moves, it drives the rack 9 to move to the left through the connecting rod 8, which drives the drive gear 20 to rotate, causing the drive rod 19 to rotate, causing the half gear 23 and half gear disk 24 to rotate, driving the rotating gear 22 to rotate back and forth, and driving the tableting mold 14 to rotate back and forth. The rotation of the tableting mold 14 drives the protrusion 21 to rotate. During the rotation of the protrusion 21, it squeezes the impact block 28, causing the impact block 28 to move away from the tableting mold 14. Then, the impact block 28 is pushed away by the spring 30. The tableting mold 14 is reset and impacted, causing it to vibrate slightly. Under the combined action of rotation and vibration, gaps and voids between raw materials in the tableting chambers are eliminated, ensuring that the amount of raw material in each group of tableting chambers is basically the same. This results in more uniform tablet size and weight, guaranteeing product quality. Next, the tableting cylinder 5 is activated, causing the pressure plate 12 to descend and the pressure block 13 to descend, so that the pressure block 13 is inserted into the tableting chamber on the tableting mold 14, applying a certain pressure to the raw material and pressing it into tablets. After tableting is completed, the top material cylinder 17 is controlled to drive the connecting frame 18 to rise, which in turn drives the lifting plate 26 to rise, causing the top plate 16 to rise and the top block 15 to rise. When the top of the top plate 16 abuts against the top of the inner cavity of the worktable 1, the top of the top block 15 is flush with the top of the worktable 1, thereby ejecting the tablets from the tableting chamber for subsequent collection and packaging.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] 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 tabletting device for pharmaceutical tablet production, comprising a worktable (1), characterised in that: The workbench (1) is fixedly connected to the top of a raw material box (3), and the top of the raw material box (3) is connected to a feed inlet (4). The right side of the raw material box (3) is fixedly connected to an installation box (2), and the left side of the raw material box (3) is fixedly connected to an installation cylinder (6). The top of the workbench (1) is rotatably mounted with a tableting mold (14). The tableting mold (14) has several sets of tableting cavities. The workbench (1) is equipped with a feeding assembly that allows the raw material to enter each set of tableting cavities evenly. The tableting cylinder (5) is equipped with a tableting assembly that tablets the raw material. The workbench (1) is equipped with a ejector assembly that ejects the tablets from the tableting cavity. The installation box (2) is equipped with a feeding assembly that conveys the raw material and the finished tablets. The feeding assembly includes a drive rod (19), which is rotatably connected to the bottom of the inner cavity of the worktable (1). A drive gear (20) is fixedly sleeved on the outside of the drive rod (19). A half-tooth disk (24) is fixedly connected to the top of the drive rod (19). A half-gear (23) is fixedly connected to the bottom of the inner cavity of the half-tooth disk (24). A rotating rod (25) is fixedly connected to the bottom of the tableting mold (14). A rotating gear (22) is fixedly connected to the bottom of the rotating rod (25). The rotating gear (22) meshes with the half-gear (23). The rotating gear (22) meshes with the half-tooth disk (24). A vibration mechanism that causes the tableting mold (14) to vibrate is installed on the worktable (1).

2. The tablet press for pharmaceutical tablet production according to claim 1, characterized in that: The vibration mechanism includes several sets of protrusions (21), which are fixedly connected to the outside of the tablet pressing mold (14). Several sets of mounting cavities (29) are opened on the top of the workbench (1). Impact blocks (28) are slidably installed on the mounting cavities (29). The side of the impact block (28) close to the tablet pressing mold (14) abuts against the tablet pressing mold (14). A spring (30) is fixedly connected to the side of the impact block (28) away from the tablet pressing mold (14). The end of the spring (30) away from the impact block (28) is fixedly connected to the inner wall of the mounting cavity (29).

3. The tablet press apparatus for pharmaceutical tablet production according to claim 1, characterized in that: The feeding assembly includes a feeding cylinder (7), which is fixedly installed on the inner wall of the mounting box (2). The output end of the feeding cylinder (7) is fixedly connected to a feeding frame (11). The raw material box (3) has a first sliding opening that matches the feeding frame (11). The feeding frame (11) is slidably connected to the first sliding opening. A baffle (10) is fixedly connected to the right side of the feeding frame (11). A drive mechanism for driving the feeding assembly to operate is installed on the baffle (10).

4. The tablet press apparatus for pharmaceutical tablet production according to claim 3, characterized in that: The driving mechanism includes a connecting rod (8), which is fixedly connected to the bottom of the baffle (10). The top of the worktable (1) is provided with a second sliding opening that matches the connecting rod (8). The connecting rod (8) is slidably connected to the second sliding opening. A rack (9) is fixedly connected to the bottom of the connecting rod (8), and the rack (9) meshes with the driving gear (20).

5. The tablet press apparatus for pharmaceutical tablet production as claimed in claim 1 wherein: The tableting assembly includes a tableting cylinder (5), which is fixedly installed on the top of the mounting cylinder (6). The output end of the tableting cylinder (5) is fixedly connected to a pressure plate (12). The outer side of the pressure plate (12) is slidably connected to the inner wall of the mounting cylinder (6). Several sets of pressure blocks (13) matching the tableting cavity are fixedly connected to the bottom of the pressure plate (12).

6. The tablet press apparatus for pharmaceutical tablet production as claimed in claim 1 wherein: The top material assembly includes a top material cylinder (17), which is fixedly installed at the bottom of the inner cavity of the workbench (1). The output end of the top material cylinder (17) is fixedly connected to a connecting frame (18). A lifting plate (26) is fixedly connected to the top of the connecting frame (18). A top plate (16) is rotatably connected to the top of the lifting plate (26). Several sets of top blocks (15) matching the tableting cavity are fixedly connected to the top of the top plate (16). The rotating rod (25) moves through the lifting plate (26) and slides through the top plate (16). A limiting ring (27) is fixedly sleeved on the outside of the rotating rod (25).

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