Pharmaceutical tablet press

By designing a pharmaceutical tablet press with a circular worktable, and utilizing a structure consisting of a molding die, hydraulic cylinder, and motor drive, a highly efficient circulating production line operation of the independent tablet press is achieved. This solves the problem of low efficiency in independent tablet presses, improves production efficiency, and reduces equipment footprint.

CN224145432UActive Publication Date: 2026-04-21SHANGHAI KAIBAO XINYI (XINXIANG) PHARM CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI KAIBAO XINYI (XINXIANG) PHARM CO LTD
Filing Date
2025-05-21
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing independent tablet presses are inefficient and take a long time per process, resulting in low production efficiency.

Method used

A pharmaceutical tablet press with a circular worktable was designed. The worktable has three stations: a filling station, a forming station, and a feeding station. The structure of forming mold, hydraulic cylinder and motor drive realizes the perfect connection between the powder filling, forming and forming stations. The circular structure and the circulating production line operation reduce the equipment footprint and improve production efficiency.

Benefits of technology

The circular structure design and circulating production line operation enable seamless connection of multiple processes, greatly improving tableting efficiency and reducing equipment footprint.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224145432U_ABST
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Abstract

A pharmaceutical tablet press effectively solves the problem that an independent tablet press is low in efficiency. Comprising a round workbench, the workbench is sequentially divided into a filling position, a forming position and a discharging position, three forming dies are rotatably arranged on the workbench, the three forming dies are evenly arranged, a material barrel is arranged at the filling position, a filling head is arranged at the bottom of the material barrel, a first pressing plate is arranged at the forming position in a lifting mode, and a plurality of pressing rods are arranged at the bottom of the first pressing plate. A second pressing plate is arranged on the discharging position in a lifting mode, a plurality of push rods are arranged at the bottom of the second pressing plate, a discharging opening corresponding to the discharging position is formed in the workbench, the push rods push tablets in the forming die out of the discharging opening, and a receiving box is arranged at the bottom of the discharging opening. The tablet pressing machine is simple and ingenious in structure and convenient to use, a complete cycle is formed by a plurality of stations through the circular workbench, a plurality of procedures can be perfectly connected, and the tablet pressing efficiency is greatly improved.
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Description

Technical Field

[0001] This utility model relates to the field of tablet manufacturing technology, and in particular to a pharmaceutical tablet compressor. Background Technology

[0002] In the production of tablets, the powdered medicine needs to be poured into the tableting mechanism for compression molding. Existing tableting machines have various structural types, mainly including assembly line operation and independent operation. Assembly line equipment is larger and occupies a large area, which is suitable for large-scale automated production workshops. Independent operation often uses a separate tableting machine to complete the operation in one go, and then the tablet is taken out and refilled with powdered medicine for the next operation.

[0003] Independent tablet presses are inconvenient to use, take a long time for each process, and are inefficient. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, this utility model provides a pharmaceutical tablet press that effectively solves the problem of low efficiency of independent tablet presses.

[0005] The technical solution to the technical problem is as follows: a pharmaceutical tableting machine, including a circular worktable, which is divided into three stations in sequence: a filling station, a forming station, and a discharging station. A forming mold is rotatably set on the worktable, and three forming molds are evenly arranged. A material barrel is set at the filling station, and a filling head is set at the bottom of the material barrel. A first pressure plate is raised and lowered at the forming station, and multiple pressure rods are set at the bottom of the first pressure plate. The pressure rods are inserted into the forming mold to complete tableting. A second pressure plate is raised and lowered at the discharging station, and multiple push rods are set at the bottom of the second pressure plate. A discharging port corresponding to the discharging station is opened on the worktable. The push rods push the tablets in the forming mold out of the discharging port. A receiving box is set at the bottom of the discharging port.

[0006] Preferably, the workbench is provided with a column in the middle, the forming mold is provided with a sleeve shaft sleeved on the column in the middle, and an external gear ring is provided at the bottom of the outer side of the sleeve shaft.

[0007] Preferably, a motor is fixed at the bottom of the worktable, and a gear that meshes with an external gear ring is fixed on the output shaft of the motor, forming a structure in which the motor drives the molding mold to rotate.

[0008] Preferably, the molding die has multiple mold cavities.

[0009] Preferably, the workbench is provided with multiple supports, the material bucket is fixed between the support and the column at the filling position, the forming position is provided with a first fixing plate connecting the column and the support, and the unloading position is provided with a second fixing plate connecting the column and the support.

[0010] Preferably, a first hydraulic cylinder is provided on the first fixed plate, the first hydraulic cylinder is connected to the first pressure plate, and a first guide rod passing through the first fixed plate is provided on the first pressure plate.

[0011] Preferably, a second hydraulic cylinder is provided on the second fixed plate, the second hydraulic cylinder is connected to the second pressure plate, and a second guide rod is provided on the second pressure plate passing through the second fixed plate.

[0012] Preferably, the bottom of the workbench is provided with multiple support legs.

[0013] This utility model has a simple and ingenious structure and is easy to use. Through the circular worktable, multiple workstations form a complete cycle, and multiple processes can be perfectly connected, which greatly improves the tableting efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a pharmaceutical tablet press according to this utility model. Figure 1 .

[0015] Figure 2 This is a schematic diagram of the structure of a pharmaceutical tablet press according to this utility model. Figure 2 .

[0016] Figure 3 This is a schematic diagram of the structure of the worktable in a pharmaceutical tablet press according to this utility model.

[0017] Figure 4 This is a schematic diagram of the molding die in a pharmaceutical tablet press according to this utility model.

[0018] Figure 5 This is a schematic diagram of the structure of the first pressure plate and pressure rod in a pharmaceutical tablet press according to this utility model. Detailed Implementation

[0019] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0020] Depend on Figures 1 to 5 It is known that a pharmaceutical tableting machine includes a circular worktable 1, with multiple support legs 23 at the bottom of the worktable 1. The worktable 1 is divided into three stations in sequence: a filling station, a forming station, and a discharging station. A forming mold 2 is rotatably mounted on the worktable 1. Three forming molds 2 are evenly arranged. A material tank 3 is provided at the filling station. A filling head 4 is provided at the bottom of the material tank 3. A first pressure plate 5 is raised and lowered at the forming station. Multiple pressure rods 6 are provided at the bottom of the first pressure plate 5. The pressure rods 6 are inserted into the forming mold 2 to complete tableting. A second pressure plate 7 is raised and lowered at the discharging station. Multiple push rods 8 are provided at the bottom of the second pressure plate 7. A discharging port 9 corresponding to the discharging station is opened on the worktable 1. The push rods 8 push the tablets in the forming mold 2 out of the discharging port 9. A receiving box 10 is provided at the bottom of the discharging port 9.

[0021] In practical use, this utility model

[0022] The powder is placed in the material barrel 3. The filling head 4 is a commonly used device in the prior art, used to fill the powder into the molding mold 2. After the powder is filled into the molding mold 2, it is rotated to the molding position. The first pressure plate 5 moves down and drives the pressure rod 6 to compress the powder into tablets. After molding, the molding mold 2 continues to rotate to the unloading position. After the second pressure plate 7 moves down, the push rod 8 pushes the tablet out of the molding mold 2 and it falls into the receiving box 10 from the unloading port 9, completing one cycle.

[0023] Throughout the entire operating cycle, no machine downtime is required for any process. Filling, molding, and unloading are all completed in one go, greatly improving tableting efficiency.

[0024] The worktable 1 has a column 11 in the middle, and the molding mold 2 has a sleeve shaft 12 sleeved on the column 11 in the middle. The bottom of the outer side of the sleeve shaft 12 has an external gear ring. The bottom of the worktable 1 is fixed with a motor 13. The output shaft of the motor 13 is fixed with a gear that meshes with the external gear ring, forming a structure in which the motor 13 drives the molding mold 2 to rotate.

[0025] Motor 13 adopts an intermittent motion mode, stopping for 10-20 seconds after each rotation of molding mold 2 by 120°, which is used for filling, molding or unloading.

[0026] The molding die 2 has multiple cavities 15, which are customized according to the size of the tablet. The pressure rod 6 and the push rod 8 correspond one-to-one with the position of the cavity 15.

[0027] The workbench 1 is provided with multiple supports 16. The material barrel 3 is fixed between the support 16 and the column 11 at the filling position. The forming position is provided with a first fixing plate 17 connecting the column 11 and the support 16. The unloading position is provided with a second fixing plate 18 connecting the column 11 and the support 16. A first hydraulic cylinder 19 is provided on the first fixing plate 17. The first hydraulic cylinder 19 is connected to the first pressure plate 5. The first pressure plate 5 is provided with a first guide rod 20 passing through the first fixing plate 17. A second hydraulic cylinder 21 is provided on the second fixing plate 18. The second hydraulic cylinder 21 is connected to the second pressure plate 7. The second pressure plate 7 is provided with a second guide rod 22 passing through the second fixing plate 18.

[0028] The first hydraulic cylinder 19 drives the first pressure plate 5 to rise and fall vertically, and the second hydraulic cylinder 21 drives the second pressure plate 7 to rise and fall vertically. This is used to compress the powder into tablets and push the medicine out of the forming mold 2. The length of the pressure rod 6 is less than that of the push rod 8. When the first pressure plate 5 contacts the forming mold 2, there is a certain distance between the bottom of the pressure rod 6 and the worktable 1, forming a tablet forming space. When the second pressure plate 7 contacts the forming mold 2, the bottom of the push rod 8 will extend out of the bottom of the forming mold 2, thereby ensuring that the tablet is pushed out and that there is no tablet residue in the next tableting process, thus ensuring the stability of the equipment operation.

[0029] Compared with the prior art, this utility model has the following advantages: by setting the workbench as a circular structure, multiple workstations are distributed in a circle on the workbench, so that multiple processes form a cycle, reducing the equipment footprint and improving production efficiency.

Claims

1. A pharmaceutical tablet press, characterized in that, The device includes a circular workbench (1), which is divided into three workstations: a filling position, a forming position, and a discharging position. A forming mold (2) is rotatably mounted on the workbench (1). There are three forming molds (2) evenly arranged. A material bucket (3) is mounted on the filling position. A filling head (4) is provided at the bottom of the material bucket (3). A first pressure plate (5) is raised and lowered on the forming position. Multiple pressure rods (6) are provided at the bottom of the first pressure plate (5). The pressure rods (6) are inserted into the forming mold (2) to complete the tablet pressing. A second pressure plate (7) is raised and lowered on the discharging position. Multiple push rods (8) are provided at the bottom of the second pressure plate (7). A discharging port (9) corresponding to the discharging position is opened on the workbench (1). The push rods (8) push the tablets in the forming mold (2) out from the discharging port (9). A receiving box (10) is provided at the bottom of the discharging port (9).

2. A pharmaceutical tablet press according to claim 1, characterized in that The workbench (1) is provided with a column (11) in the middle, and the forming mold (2) is provided with a sleeve shaft (12) sleeved on the column (11) in the middle, and an outer toothed ring is provided at the bottom of the outer side of the sleeve shaft (12).

3. A pharmaceutical tablet compressor according to claim 2, characterized in that, The workbench (1) is fixed with a motor (13) at the bottom. The output shaft of the motor (13) is fixed with a gear that meshes with the external gear ring, forming a structure in which the motor (13) drives the molding mold (2) to rotate.

4. The pharmaceutical tablet press of claim 1, wherein, The molding die (2) has multiple mold cavities (15).

5. The pharmaceutical tablet press according to claim 1, wherein The workbench (1) is provided with multiple supports (16), the material bucket (3) is fixed between the support (16) and the column (11) at the filling position, the forming position is provided with a first fixing plate (17) connecting the column (11) and the support (16), and the unloading position is provided with a second fixing plate (18) connecting the column (11) and the support (16).

6. A pharmaceutical tablet press according to claim 5, characterized in that The first fixed plate (17) is provided with a first hydraulic cylinder (19), which is connected to the first pressure plate (5), and the first pressure plate (5) is provided with a first guide rod (20) that passes through the first fixed plate (17).

7. A pharmaceutical tablet press according to claim 5, wherein The second fixed plate (18) is provided with a second hydraulic cylinder (21), which is connected to the second pressure plate (7), and the second pressure plate (7) is provided with a second guide rod (22) that passes through the second fixed plate (18).

8. The pharmaceutical tablet press of claim 1, wherein, The workbench (1) is provided with multiple support legs (23) at its bottom.