Tablet raw material mixing device
The mixing device for pharmaceutical tablets addresses poor mixing efficiency and contamination issues by employing spiral blades and a gas flow system for efficient, contamination-free mixing.
Patent Information
- Application Number
- CN202421498204.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-28
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-06-28
AI Technical Summary
Traditional mixing machines have poor mixing effects in tablet production and are prone to contamination of the powder.
The combination design of spiral blades and stirring plates is adopted, combined with pneumatic mixing technology, and the powder is transported and pre-mixed through clean air, avoiding direct contact between the moving parts and the powder.
The effect of full mixing and high-quality mixing of the powder is achieved, while reducing the risk of contamination of the powder.
Smart Images

Figure CN223096656U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of tablet raw material mixing, and specifically relates to a tablet raw material mixing device. Background Art
[0002] In the process of tablet production, due to the different types of components inside the tablets, it is necessary to mix the raw materials of different components.
[0003] When traditional mixers mix medicinal powders, most of them perform mechanical stirring through metal rods or metal plates. However, only mixing the medicinal powders by the rotation of metal rods or metal plates not only has a poor mixing effect, but also is likely to contaminate the medicinal powders due to the long-term contact between the metal rods or metal plates and the medicinal powders during operation. Therefore, there is an urgent need for a tablet raw material mixing device to solve the above problems. Summary of the Utility Model
[0004] Based on the deficiencies in the prior art mentioned in the above background art, the utility model provides a tablet raw material mixing device.
[0005] The utility model overcomes the above technical problems by adopting the following technical solutions, specifically:
[0006] A tablet raw material mixing device includes a bottom plate. A support rod is fixedly connected to the outer wall of the top of the bottom plate, and a top plate is fixedly connected to the outer wall of the top of the support rod. A circular groove is opened on the outer wall of the top of the top plate, and a mixing tank is fixedly connected inside the circular groove;
[0007] A vertical plate is fixedly connected to the outer wall of the bottom of the top plate, and a control panel is fixedly connected to one side outer wall of the vertical plate;
[0008] A first sealing disc is fixedly connected to the bottom end of the mixing tank;
[0009] Feeding pipes are fixedly connected to the circumferential outer wall of the mixing tank. The number of the feeding pipes is two groups, and a docking pipe is fixedly connected to the circumferential outer wall of the feeding pipe;
[0010] A first mixing assembly is arranged inside the mixing tank;
[0011] A second mixing assembly is arranged on the top of the bottom plate.
[0012] As a further solution of the utility model: a motor is fixedly connected to the outer wall of the top of the mixing tank, a first helical gear is fixedly connected to the output end of the motor, the first helical gear meshes with a second helical gear, a first rotating rod is fixedly connected to the inner wall of the circumference of the second helical gear, spiral blades are fixedly connected to both ends of the first rotating rod, the number of the spiral blades is two groups, the spiral directions of the two groups of spiral blades are opposite, the two groups of spiral blades are respectively located inside the two material conveying pipes, and a fixing rod is fixedly connected to the inner wall of the top of the mixing tank.
[0013] As a further solution of the utility model: the first mixing assembly includes a third helical gear meshing with the second helical gear, a second rotating rod is fixedly connected to the inner wall of the circumference of the third helical gear, stirring plates are fixedly connected to the outer wall of the circumference of the second rotating rod, a housing is fixedly connected to one end of the fixing rod, and the first helical gear, the second helical gear and the third helical gear are all located inside the housing.
[0014] As a further solution of the utility model: a reinforcing rod is fixedly connected to the inner wall of the circumference of the mixing tank, a bearing seat is fixedly connected to the end of the reinforcing rod away from the mixing tank, and the second rotating rod is fixedly connected to the bearing seat.
[0015] As a further solution of the utility model: a bushing is fixedly connected to the end of the second rotating rod away from the motor, and stirring rods are fixedly connected to the outer wall of the circumference of the bushing at equal distances and distributed in a circular shape.
[0016] As a further solution of the utility model: the second mixing assembly includes a blower fixedly connected to the outer wall of the top of the bottom plate, a hose is fixedly connected to one end of the blower, a second sealing disc is fixedly connected to the end of the hose away from the blower, a fixing screw is arranged on one side of the second sealing disc, the second sealing disc is fixedly connected to the first sealing disc through the fixing screw, an air outlet hopper is fixedly connected to the outer wall of the top of the second sealing disc, the air outlet hopper is located inside the mixing tank, and the cross section of the air outlet hopper is in an isosceles trapezoid shape.
[0017] As a further solution of the utility model: a ring plate is fixedly connected to the inner wall of the circumference of the air outlet hopper, an installation groove is formed in the outer wall of the top of the ring plate, a cover plate is rotatably connected to the inside of the installation groove, a spring is fixedly connected to the outer wall of the top of the cover plate, and the end of the spring away from the cover plate is fixedly connected to the inner wall of the circumference of the air outlet hopper.
[0018] After adopting the above structure, compared with the prior art, the utility model has the following advantages: it can realize the dispersion and pre-stirring of the powder raw materials during the transportation process, and achieve the simultaneous feeding and pre-stirring. When the feeding of the powder raw materials is completed, the first mixing component stops working and the second mixing component is started. By starting the blower, strong air flow can be generated inside the mixing tank, so as to fully pneumatically mix the powder raw materials located inside the mixing tank. Since the whole mixing process uses clean air, there are no moving parts, thus the pollution to the powder is very small, ensuring the quality of the mixed powder. Brief Description of the Drawings
[0019] Figure 1 It is a schematic front view of the overall structure of the utility model.
[0020] Figure 2 It is a schematic semi-sectional plan view of the structure of the utility model.
[0021] Figure 3 For the utility model Figure 2 An enlarged schematic view of the structure at A in the figure.
[0022] Figure 4 For the utility model Figure 2 An enlarged schematic view of the structure at B in the figure.
[0023] In the figure: 1, support rod; 2, blower; 3, bottom plate; 4, top plate; 5, hose; 6, motor; 7, feeding pipe; 8, docking pipe; 9, mixing tank; 10, vertical plate; 11, control panel; 12, first sealing disc; 13, spiral blade; 14, first rotating rod; 15, stirring rod; 16, bushing; 17, second rotating rod; 18, stirring plate; 19, bearing seat; 20, strengthening rod; 21, housing; 22, first helical gear; 23, fixed rod; 24, second helical gear; 25, third helical gear; 26, air outlet hopper; 27, spring; 28, cover plate; 29, circular ring plate; 30, second sealing disc; 31, fixing screw. Detailed Description of the Preferred Embodiment
[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0025] Please refer to Figures 1 to 4, in the embodiment of the present utility model, a tablet raw material mixing device includes a bottom plate 3. A support rod 1 is fixedly connected to the outer wall of the top of the bottom plate 3. A top plate 4 is fixedly connected to the outer wall of the top of the support rod 1. A circular groove is formed in the outer wall of the top of the top plate 4, and a mixing tank 9 is fixedly connected to the inside of the circular groove;
[0026] A vertical plate 10 is fixedly connected to the outer wall of the bottom of the top plate 4, and a control panel 11 is fixedly connected to the outer wall of one side of the vertical plate 10;
[0027] A first sealing disc 12 is fixedly connected to the bottom end of the mixing tank 9;
[0028] Two feeding pipes 7 are fixedly connected to the circumferential outer wall of the mixing tank 9, and a docking pipe 8 is fixedly connected to the circumferential outer wall of the feeding pipe 7;
[0029] A first mixing component is arranged inside the mixing tank 9, which can realize the dispersion and pre-stirring of the powder raw material during the transportation process, and realize the simultaneous feeding and pre-stirring;
[0030] A second mixing component is arranged on the top of the bottom plate 3, which can fully pneumatically mix the powder raw material located inside the mixing tank 9. Since the whole mixing process uses clean air, there are no moving parts, so the pollution to the powder is very small, ensuring the quality of the mixed powder.
[0031] Preferably, a motor 6 is fixedly connected to the outer wall of the top of the mixing tank 9. The output end of the motor 6 is fixedly connected to a first helical gear 22. The first helical gear 22 meshes with a second helical gear 24. The inner circumferential wall of the second helical gear 24 is fixedly connected to a first rotating rod 14. Both ends of the first rotating rod 14 are fixedly connected to spiral blades 13. The number of the spiral blades 13 is two groups. The spiral directions of the two groups of spiral blades 13 are opposite. The two groups of spiral blades 13 are respectively located inside two feeding pipes 7. A fixed rod 23 is fixedly connected to the inner wall of the top of the mixing tank 9. The first mixing assembly includes a third helical gear 25 meshing with the second helical gear 24. The inner circumferential wall of the third helical gear 25 is fixedly connected to a second rotating rod 17. The outer circumferential wall of the second rotating rod 17 is fixedly connected to stirring plates 18. One end of the fixed rod 23 is fixedly connected to a housing 21. The first helical gear 22, the second helical gear 24 and the third helical gear 25 are all located inside the housing 21. The motor 6 can drive the first helical gear 22 to rotate. During the rotation of the first helical gear 22, the second helical gear 24 can be driven to rotate. When the second helical gear 24 rotates, the first rotating rod 14 and the two groups of spiral blades 13 can be driven to rotate, so as to realize the conveying work of the powder raw materials. And during the feeding process of the powder raw materials, the second helical gear 24 drives the third helical gear 25 to rotate. The second rotating rod 17 can be driven to rotate through the third helical gear 25, so as to drive the stirring plates 18 to disperse and pre-mix the feeding raw materials, realizing the simultaneous feeding and pre-stirring.
[0032] Preferably, a reinforcing rod 20 is fixedly connected to the inner circumferential wall of the mixing tank 9. One end of the reinforcing rod 20 away from the mixing tank 9 is fixedly connected to a bearing seat 19. The second rotating rod 17 is fixedly connected to the bearing seat 19, ensuring the stability of the second rotating rod 17 during rotation.
[0033] Preferably, a bushing 16 is fixedly connected to one end of the second rotating rod 17 away from the motor 6. The outer circumferential wall of the bushing 16 is fixedly connected to stirring rods 15 distributed in a circular shape at equal intervals, which can pre-stir the raw materials.
[0034] Preferably, the second mixing assembly includes a blower 2 fixedly connected to the outer wall of the top of the bottom plate 3. One end of the blower 2 is fixedly connected to a hose 5. The end of the hose 5 away from the blower 2 is fixedly connected to a second sealing disc 30. A fixing screw 31 is arranged on one side of the second sealing disc 30. The second sealing disc 30 is fixedly connected to the first sealing disc 12 through the fixing screw 31. An air outlet hopper 26 is fixedly connected to the outer wall of the top of the second sealing disc 30. The air outlet hopper 26 is located inside the mixing tank 9. The cross-section of the air outlet hopper 26 is an isosceles trapezoid. After the powder raw materials are loaded, the first mixing assembly stops working and the second mixing assembly is started. By starting the blower 2, a strong air flow can be generated inside the mixing tank 9, so as to fully pneumatically mix the powder raw materials located inside the mixing tank 9. Since the whole mixing process uses clean air, there are no moving parts, so the pollution to the powder is very small, ensuring the quality of the mixed powder. Subsequently, after mixing is completed, the second sealing disc 30 is removed to complete the unloading work of the raw materials.
[0035] Preferably, a ring plate 29 is fixedly connected to the inner wall of the circumference of the air outlet hopper 26. An installation groove is formed in the outer wall of the top of the ring plate 29. A cover plate 28 is rotatably connected to the inside of the installation groove. A spring 27 is fixedly connected to the outer wall of the top of the cover plate 28. The end of the spring 27 away from the cover plate 28 is fixedly connected to the inner wall of the circumference of the air outlet hopper 26, which can realize unidirectional air flow and avoid the situation that a large amount of raw materials flow into the hose 5 through the air outlet hopper 26 when the second mixing assembly stops working.
[0036] Working principle: When the staff needs to mix the raw materials, the conveying pipes of different raw materials can be first connected to the docking pipe 8. Subsequently, the motor 6 is started. The motor 6 can drive the first helical gear 22 to rotate. During the rotation of the first helical gear 22, the second helical gear 24 can be driven to rotate. When the second helical gear 24 rotates, the first rotating rod 14 and two groups of spiral blades 13 can be driven to rotate, so as to realize the conveying work of the powder raw materials. And during the feeding process of the powder raw materials, the second helical gear 24 drives the third helical gear 25 to rotate. Through the third helical gear 25, the second rotating rod 17 can be driven to rotate, so as to drive the stirring plate 18 and the stirring rod 15 to disperse and pre-mix the feeding raw materials, realizing the simultaneous feeding and pre-stirring. After the powder raw materials are loaded, the first mixing assembly stops working and the second mixing assembly is started. By starting the blower 2, a strong air flow can be generated inside the mixing tank 9, so as to fully pneumatically mix the powder raw materials located inside the mixing tank 9. Since the whole mixing process uses clean air, there are no moving parts, so the pollution to the powder is very small, ensuring the quality of the mixed powder.
[0037] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model.
Claims
1. A tablet raw material mixing device, comprising a bottom plate (3), characterized in that, A support rod (1) is fixedly connected to the outer wall of the top of the bottom plate (3), and a top plate (4) is fixedly connected to the outer wall of the top of the support rod (1). A circular groove is formed in the outer wall of the top of the top plate (4), and a mixing tank (9) is fixedly connected to the inside of the circular groove; A vertical plate (10) is fixedly connected to the outer wall of the bottom of the top plate (4), and a control panel (11) is fixedly connected to one side outer wall of the vertical plate (10); A first sealing disc (12) is fixedly connected to the bottom end of the mixing tank (9); Two feeding pipes (7) are fixedly connected to the circumferential outer wall of the mixing tank (9), and a docking pipe (8) is fixedly connected to the circumferential outer wall of the feeding pipe (7); A first mixing assembly is arranged inside the mixing tank (9); A second mixing assembly is arranged on the top of the bottom plate (3); The second mixing assembly includes a blower (2) fixedly connected to the outer wall of the top of the bottom plate (3). One end of the blower (2) is fixedly connected to a hose (5). One end of the hose (5) far away from the blower (2) is fixedly connected to a second sealing disc (30). A fixing screw (31) is arranged on one side of the second sealing disc (30). The second sealing disc (30) is fixedly connected to the first sealing disc (12) through the fixing screw (31). An air outlet hopper (26) is fixedly connected to the outer wall of the top of the second sealing disc (30). The air outlet hopper (26) is located inside the mixing tank (9), and the cross section of the air outlet hopper (26) is an isosceles trapezoid.
2. The mixing device for tablet raw materials according to claim 1, characterized in that, A motor (6) is fixedly connected to the outer wall of the top of the mixing tank (9). The output end of the motor (6) is fixedly connected to a first helical gear (22). The first helical gear (22) meshes with a second helical gear (24). A first rotating rod (14) is fixedly connected to the inner wall of the circumference of the second helical gear (24). Two spiral blades (13) are fixedly connected to both ends of the first rotating rod (14). The number of the spiral blades (13) is two groups. The spiral directions of the two groups of spiral blades (13) are opposite. The two groups of spiral blades (13) are respectively located inside the two feeding pipes (7). A fixing rod (23) is fixedly connected to the inner wall of the top of the mixing tank (9).
3. A tablet raw material mixing device according to claim 2, characterized in that, The first mixing assembly includes a third helical gear (25) meshing with the second helical gear (24). A second rotating rod (17) is fixedly connected to the inner wall of the circumference of the third helical gear (25). A stirring plate (18) is fixedly connected to the outer wall of the circumference of the second rotating rod (17). One end of the fixing rod (23) is fixedly connected to a housing (21). The first helical gear (22), the second helical gear (24) and the third helical gear (25) are all located inside the housing (21).
4. A tablet raw material mixing device according to claim 3, characterized in that, A reinforcing rod (20) is fixedly connected to the inner wall of the circumference of the mixing tank (9). One end of the reinforcing rod (20) far away from the mixing tank (9) is fixedly connected to a bearing seat (19). The second rotating rod (17) is fixedly connected to the bearing seat (19).
5. The tablet raw material mixing device according to claim 3, characterized in that, One end of the second rotating rod (17) far away from the motor (6) is fixedly connected with a shaft sleeve (16), and the circumferential outer wall of the shaft sleeve (16) is fixedly connected with stirring rods (15) which are equidistantly distributed in a circular shape.
6. The tablet raw material mixing device according to claim 5, characterized in that, The circumferential inner wall of the air outlet hopper (26) is fixedly connected with an annular plate (29). An installation groove is formed in the top outer wall of the annular plate (29), and a cover plate (28) is rotatably connected inside the installation groove. A spring (27) is fixedly connected to the top outer wall of the cover plate (28), and one end of the spring (27) far away from the cover plate (28) is fixedly connected to the circumferential inner wall of the air outlet hopper (26).