A production device of metformin hydrochloride sustained-release tablets
By introducing a stirring mechanism and mixing components into the metformin hydrochloride sustained-release tablet production equipment, and utilizing the arc-shaped groove design of the feeding component and conveying rollers, the problems of uneven raw material mixing and outlet blockage were solved, achieving efficient raw material conveying and mixing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU XIANGRUI PHARMA CO LTD
- Filing Date
- 2025-06-04
- Publication Date
- 2026-06-26
AI Technical Summary
The existing metformin hydrochloride sustained-release tablet production equipment suffers from uneven mixing of raw materials and the stirring device is prone to clogging of the cylinder outlet.
The system employs a stirring mechanism and mixing components, combined with a feeding component and a motor-driven conveying roller. Raw materials are conveyed through an arc-shaped trough and mixed by a belt drive system that drives the stirring rod, thus preventing blockage at the discharge port.
It achieves uniform mixing and conveying of raw materials, avoids clogging of the cylinder outlet, and improves production efficiency and mixing efficiency.
Smart Images

Figure CN224404986U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pharmaceutical production technology, specifically to a production equipment for metformin hydrochloride sustained-release tablets. Background Technology
[0002] Metformin hydrochloride extended-release tablets can be used for type 2 diabetes patients whose diet control is unsatisfactory, especially those with hyperinsulinemia. Metformin hydrochloride extended-release tablets not only have a hypoglycemic effect, but can also reduce weight and hyperinsulinemia. In the manufacturing process of metformin hydrochloride extended-release tablets, the drug powder needs to be compressed into shape, which then forms the tablets we see.
[0003] A search revealed Chinese patent publication number CN215779966U, which discloses a production equipment for metformin hydrochloride sustained-release tablets. The equipment includes a fixing device, a stirring device, a mixing device, a tilting device, and an extrusion device. The fixing device includes a support plate, a fixing plate, and a fixing rod. The stirring device includes a cylinder and a support. One surface of the fixing plate has a mounting hole, and the cylinder is connected to the mounting hole. One surface of the support is connected to one surface of the cylinder. The mixing device includes legs and a mounting plate. One end of each of the three legs is connected to one surface of the support plate, and the other end of each of the three legs is connected to one surface of the mounting plate. The tilting device includes a support plate, a support rod, and a connecting rod.
[0004] The production equipment for metformin hydrochloride sustained-release tablets in the above patent has the following shortcomings: In the above patent, the raw materials are crushed by a stirring device and then transported to a mixing device. However, in actual use, this can lead to uneven mixing after the raw materials are crushed, and the stirring device can easily cause blockage at the discharge port of the cylinder after stirring and crushing. Utility Model Content
[0005] The purpose of this invention is to solve or at least alleviate the problems existing in the prior art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a production equipment for metformin hydrochloride sustained-release tablets, comprising a stirring mechanism and a mixing component. The stirring mechanism includes a support frame, and a cylinder is fixedly connected to the inner wall of the support frame. A connecting frame is fixedly connected to the inner wall of the support frame, and a feeding component is fixedly installed on the inner wall of the connecting frame. The feeding component includes a feeding seat fixedly connected to the connecting frame, and a circular cavity is opened inside the feeding seat. An inlet and an outlet are respectively opened on the inner wall of the circular cavity. The feeding seat is connected to the cylinder through the inlet.
[0007] By adopting the above structure, the stirring mechanism facilitates the stirring and pulverizing of the raw materials for the sustained-release tablets, the mixing component facilitates the mixing and stirring of the raw materials conveyed in the stirring mechanism, and the feeding component at the bottom of the cylinder facilitates the conveying of auxiliary raw materials, thereby avoiding blockage at the discharge port at the bottom of the cylinder during the conveying of raw materials.
[0008] Optionally, the inner wall of the circular cavity is rotatably connected to a conveying roller, and the outer wall of the conveying roller is provided with multiple equally spaced arc-shaped grooves.
[0009] By adopting the above structure, the pulverized raw materials can be easily transported to the mixing component by the rotation of the conveying roller in the circular cavity and the arc-shaped groove. The opening of multiple arc-shaped grooves facilitates the conveying of raw materials.
[0010] Optionally, a motor is fixedly connected to the inner wall of the connecting frame, and a pulley is fixedly connected to the output shaft of the motor.
[0011] By adopting the above structure, the motor can be easily installed through the connecting bracket, and the motor can directly drive the pulley to rotate when it starts.
[0012] Optionally, a second pulley is rotatably connected to the outer wall of the feeding seat, and the second pulley is connected to the conveying roller. The second pulley and the first pulley are connected by the same belt.
[0013] By adopting the above structure, the first belt can directly drive the second belt pulley to rotate. When the second belt pulley rotates, it directly drives the conveyor roller to rotate. When the conveyor roller rotates, the raw material enters the arc groove when one of the arc grooves rotates to the inlet. When the arc groove rotates to the outlet, the raw material in the arc groove is easily conveyed out.
[0014] Optionally, the mixing assembly includes a mixing cylinder, and a stirring rod is rotatably connected to the inner wall of the bottom of the mixing cylinder.
[0015] By adopting the above structure, the raw materials in the mixing drum are directly stirred and mixed by the stirring rod in the mixing drum when the stirring rod rotates.
[0016] Optionally, a motor is fixedly connected to the bottom outer wall of the mixing cylinder, and a pulley is fixedly connected to the output shaft of the motor.
[0017] By adopting the above structure, the motor can directly drive the three pulleys to rotate.
[0018] Optionally, a pulley four is rotatably connected to the bottom outer wall of the mixing cylinder, and the drive shaft of the pulley four is connected to the stirring rod.
[0019] By adopting the above structure, the pulley can be rotated directly to drive the stirring rod to rotate, and the stirring rod can directly stir and mix the raw materials in the mixing drum.
[0020] Optionally, the same belt 2 connects the pulley 3 and pulley 4, and the feed seat is located directly above the mixing cylinder.
[0021] By adopting the above structure, the stirring rod is directly driven to rotate by the motor and belt, which facilitates the stirring and mixing of the raw materials in the mixing drum.
[0022] Compared with the prior art, the beneficial effects of this utility model are:
[0023] (1) This utility model provides a feeding component between the stirring mechanism and the mixing component. The cooperation between the feeding component and the motor facilitates the conveying of crushed raw materials in the cylinder to the mixing cylinder. The feeding component can adjust the conveying speed of the raw materials, thereby avoiding the problem of raw material blockage during the cylinder feeding process.
[0024] (2) This utility model sets a conveying roller in the feeding seat. The arc groove on the conveying roller facilitates the conveying of raw materials for the slow-release tablets. Since the storage capacity of the arc groove on the conveying roller is fixed, the feeding rate can be adjusted by controlling the rotation speed of the conveying roller. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0026] Figure 2 This is a three-dimensional structural diagram of the present invention;
[0027] Figure 3 This is a cross-sectional view of the feeding assembly of this utility model;
[0028] Figure 4 This is a schematic diagram of the hybrid component structure of this utility model;
[0029] Figure 5 This is a schematic diagram of the mixing cylinder structure of this utility model.
[0030] In the diagram: 1. Stirring mechanism; 2. Mixing component; 3. Support frame; 4. Cylinder; 5. Connecting frame; 6. Feeding component; 7. Motor; 8. Belt 1; 9. Feeding seat; 10. Conveying roller; 11. Arc groove; 12. Feed inlet; 13. Discharge outlet; 14. Mixing cylinder; 15. Belt 2; 16. Motor; 17. Stirring rod. Detailed Implementation
[0031] 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.
[0032] Please see Figure 1-5 A production device for metformin hydrochloride sustained-release tablets includes a stirring mechanism 1 and a mixing component 2. The stirring mechanism 1 includes a support frame 3, and a cylinder 4 is fixedly connected to the inner wall of the support frame 3. A connecting frame 5 is fixedly connected to the inner wall of the support frame 3, and a feeding component 6 is fixedly installed on the inner wall of the connecting frame 5. The feeding component 6 includes a feeding seat 9 fixedly connected to the connecting frame 5, and a circular cavity is opened inside the feeding seat 9. An inlet 12 and an outlet 13 are respectively opened on the inner wall of the circular cavity. The feeding seat 9 is connected to the cylinder 4 through the inlet 12.
[0033] In use, the stirring mechanism 1 facilitates the stirring and crushing of the raw materials for the sustained-release tablets, the mixing component 2 facilitates the mixing of the raw materials conveyed in the stirring mechanism 1, and the feeding component 6 at the bottom of the cylinder 4 facilitates the conveying of auxiliary raw materials, thereby avoiding blockage at the bottom outlet of the cylinder 4 during the conveying of raw materials.
[0034] For details, please refer to Figure 3 A conveying roller 10 is rotatably connected to the inner wall of the circular cavity, and multiple equally spaced arc-shaped grooves 11 are provided on the outer wall of the conveying roller 10. The conveying roller 10 in the circular cavity rotates in conjunction with the arc-shaped grooves 11 to facilitate the conveying of crushed raw materials to the mixing component 2. The multiple arc-shaped grooves 11 facilitate the conveying of raw materials. A motor 7 is fixedly connected to the inner wall of the connecting frame 5, and a pulley is fixedly connected to the output shaft of the motor 7. The connecting frame 5 facilitates the installation of the motor 7. When the motor 7 starts, it directly drives the belt. When wheel one rotates, pulley two is rotatably connected to the outer wall of the feeding seat 9, and pulley two is connected to the conveying roller 10. The same belt 8 is connected between pulley two and pulley one. The setting of belt 8 makes it convenient to directly drive pulley two to rotate. When pulley two rotates, it directly drives the conveying roller 10 to rotate. When the conveying roller 10 rotates, when one of the arc grooves 11 rotates to the feed port 12, the raw material enters the arc groove 11. When the arc groove 11 rotates to the discharge port 13, the raw material in the arc groove 11 is conveniently conveyed out.
[0035] For details, please refer to Figure 4-5The mixing assembly 2 includes a mixing cylinder 14, and a stirring rod 17 is rotatably connected to the inner wall of the bottom of the mixing cylinder 14. When the stirring rod 17 rotates, it directly stirs and mixes the raw materials in the mixing cylinder 14. A motor 16 is fixedly connected to the outer wall of the bottom of the mixing cylinder 14, and a pulley three is fixedly connected to the output shaft of the motor 16. A pulley four is rotatably connected to the outer wall of the bottom of the mixing cylinder 14, and the drive shaft of the pulley four is connected to the stirring rod 17. The same belt two 15 is connected between the pulley three and the pulley four. The feeding seat 9 is located directly above the mixing cylinder 14. The motor 16, in conjunction with the belt two 15, directly drives the stirring rod 17 to rotate, thereby facilitating the stirring and mixing of the raw materials in the mixing cylinder 14.
[0036] Working principle: When in use, the raw material of the slow-release tablets is first injected into the cylinder 4. The raw material is crushed and stirred by the crushing and stirring mechanism. After crushing, the motor 7 is started, and the conveyor roller 10 is rotated by the belt 8. The arc groove 11 on the conveyor roller 10 facilitates the conveying of the crushed raw material to the mixing cylinder 14. During the feeding process, the motor 16 is started. When the motor 16 starts, it directly drives the stirring rod 17 to rotate by the belt 15. When the stirring rod 17 rotates, it directly stirs the crushed raw material of the slow-release tablets in the mixing cylinder 14. The mixing efficiency of the raw material is improved while feeding and stirring at the same time, and it also facilitates the uniform mixing of the raw material.
[0037] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A production apparatus for metformin hydrochloride sustained release tablet comprising a stirring mechanism (1) and a mixing assembly (2), characterized in that: The stirring mechanism (1) includes a support frame (3), and a cylinder (4) is fixedly connected to the inner wall of the support frame (3). A connecting frame (5) is fixedly connected to the inner wall of the support frame (3), and a feeding assembly (6) is fixedly installed on the inner wall of the connecting frame (5). The feeding assembly (6) includes a feeding seat (9) fixedly connected to the connecting frame (5), and a circular cavity is opened inside the feeding seat (9). The inner wall of the circular cavity is respectively provided with a feed inlet (12) and a discharge outlet (13). The feeding seat (9) is connected to the cylinder (4) through the feed inlet (12).
2. The production apparatus of the metformin hydrochloride sustained release tablet according to claim 1, wherein: The inner wall of the circular cavity is rotatably connected to a conveying roller (10), and the outer wall of the conveying roller (10) is provided with multiple equally spaced arc-shaped grooves (11).
3. The production apparatus of the metformin hydrochloride sustained release tablet according to claim 2, wherein: A motor (7) is fixedly connected to the inner wall of the connecting frame (5), and a pulley is fixedly connected to the output shaft of the motor (7).
4. The production apparatus of the metformin hydrochloride sustained release tablet according to claim 3, wherein: The outer wall of the feeding seat (9) is rotatably connected to a second pulley, and the second pulley is connected to the conveying roller (10). The second pulley and the first pulley are connected by the same belt (8).
5. The apparatus for producing a sustained-release metformin hydrochloride tablet according to claim 4, wherein: The mixing component (2) includes a mixing cylinder (14), and a stirring rod (17) is rotatably connected to the bottom inner wall of the mixing cylinder (14).
6. The production apparatus of a sustained-release metformin hydrochloride tablet according to claim 5, characterized by: A motor (16) is fixedly connected to the bottom outer wall of the mixing cylinder (14), and a pulley is fixedly connected to the output shaft of the motor (16).
7. The production apparatus of a sustained-release metformin hydrochloride tablet according to claim 6, characterized by: The bottom outer wall of the mixing cylinder (14) is rotatably connected to a pulley four, and the drive shaft of the pulley four is connected to the stirring rod (17).
8. The production equipment for metformin hydrochloride sustained-release tablets according to claim 7, characterized in that: The same belt 2 (15) connects the pulley 3 and pulley 4, and the feed seat (9) is located directly above the mixing cylinder (14).