A magnetic material mixing and stirring device for the production of plastic magnetic rings
By combining a planetary stirring mechanism and a spiral stirring paddle, the problem of easy agglomeration of magnetic materials in the production of plastic magnetic rings is solved, achieving efficient mixing and a safe stirring process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO JINGANG MAGNETIC TECH CO LTD
- Filing Date
- 2025-08-26
- Publication Date
- 2026-07-31
AI Technical Summary
In existing technologies, magnetic materials tend to form agglomerates during the production of plastic magnetic rings, making them difficult to disperse completely and resulting in low mixing efficiency.
The system employs a planetary mixing mechanism combined with horizontal and spiral mixing blades, along with a vibrating motor and scraper design, to achieve thorough mixing of materials within the tank without dead zones. Furthermore, cooling and pressure protection mechanisms ensure the safety and efficiency of the mixing process.
It achieves complete dispersion of magnetic materials, improves mixing efficiency, avoids equipment wear and material agglomeration, and ensures the safety and efficiency of the stirring process.
Smart Images
Figure CN224575939U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of mixing and stirring devices, specifically to a mixing and stirring device for magnetic materials used in the production of plastic magnetic rings. Background Technology
[0002] Plastic magnets, also known as injection-molded magnets, are a new type of functional polymer composite material. They are an important basic material in the field of modern science and technology. Due to their combination of magnetic and plastic processing advantages, they are often installed inside electrical appliances and motors. In particular, plastic magnet components play a key role in the stability and performance of power tools.
[0003] In the production process of plastic magnetic rings, the uniform mixing of magnetic materials with matrix materials such as plastics and resins is the core factor that determines the magnetic and mechanical properties of the product. Currently, the magnetic materials used in the production of plastic magnetic rings are mostly high-density magnetic particles, such as ferrite magnetic powder and rare earth permanent magnet powder. Due to their high density and magnetic attraction between particles, these materials are prone to forming agglomerates, which significantly increases the difficulty of material dispersion. Current magnetic material mixing and stirring devices are difficult to completely disperse the materials, resulting in low mixing efficiency.
[0004] Therefore, this utility model proposes a magnetic material mixing and stirring device for the production of plastic magnetic rings to solve the above-mentioned problems. Utility Model Content
[0005] The purpose of this invention is to provide a magnetic material mixing and stirring device for the production of plastic magnetic rings, which solves the problems of magnetic materials easily forming agglomerates, being difficult to disperse completely, and having low mixing efficiency in the prior art.
[0006] The technical solution adopted by this utility model to solve its technical problem is:
[0007] A magnetic material mixing and stirring device for producing plastic magnetic rings includes a mixing tank and a support frame. The mixing tank is connected to the support frame. The mixing tank has a cover, and the cover is connected to a feed inlet, a pressure sensor, and a one-way vent valve. A planetary stirring mechanism is installed inside the cover, including a central stirring shaft and multiple planetary stirring shafts. A transverse stirring blade is fixedly connected to the bottom of the central stirring shaft, and a scraper is connected to the outside of the transverse stirring blade. The transverse stirring blade is in contact with the bottom wall of the mixing tank, and the scraper is in contact with the inner wall of the mixing tank. A spiral stirring blade is coaxially fixedly connected to the planetary stirring shafts. A discharge pipe is connected to the bottom side wall of the mixing tank, and a discharge valve is connected to the discharge pipe. A tee pipe is connected to the end of the discharge pipe, and a first blower is connected to the upper end of the tee pipe.
[0008] Furthermore, the top of the transverse stirring paddle is inclined, and the highest point is the end of the transverse stirring paddle closest to the central stirring shaft.
[0009] Furthermore, the spiral agitator is provided with serrated cutting edges on its edge, and a number of material flow holes are evenly distributed on the spiral agitator.
[0010] Furthermore, the side wall of the mixing tank is also connected to an air blowing pipe, which is symmetrically arranged with the unloading pipe. An air blowing valve is connected to the air blowing pipe, and a second blower is connected to the end of the air blowing pipe.
[0011] Furthermore, a blowing assembly is connected to the top side wall of the mixing tank. The blowing assembly includes a main pipe and multiple branch pipes connected to the main pipe, and the blowing directions of the branch pipes are inconsistent.
[0012] Furthermore, a vibration motor is connected to the bottom of the mixing tank, and a shock-absorbing plate is connected between the mixing tank and the support frame.
[0013] Furthermore, the mixing tank includes, from the outside to the inside, a protective outer shell, an insulation layer, a cooling layer, and an inner liner, and the cooling layer is connected to the oil cooler through an oil guide pipe.
[0014] Furthermore, the central stirring shaft is vertically positioned at the axis of the mixing tank, and the planetary stirring shafts are evenly distributed around the central stirring shaft; a main drive motor is connected to the top of the central stirring shaft, and the main drive motor is fixedly connected to the cover; a sun gear is fixedly connected to the central stirring shaft; planetary gears are fixedly connected to the top of the planetary stirring shafts; a planetary support is fixedly connected to the inner side of the top of the mixing tank; the sun gear meshes with the planetary gears; and both the planetary gears and the sun gear are rotatably connected to the planetary support.
[0015] In summary, compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] 1. The horizontal stirring paddle of this utility model rotates and stirs the material upward against the bottom of the tank, the scraper cleans the residue on the tank wall, and the spiral structure of the spiral stirring paddle promotes the material to circulate up and down. With the stirring of the planetary stirring shaft, the material in the tank can be quickly mixed without dead angles.
[0017] 2. The serrated cutting edge of the spiral stirring paddle on the planetary stirring shaft of this utility model can directly break up magnetic material agglomerates. The vibration motor at the bottom of the stirring tank can help loosen the material and reduce agglomeration. The material flow hole of the spiral stirring paddle and the inclined design of the horizontal stirring paddle form convection to avoid local accumulation of material and ensure that the magnetic material is completely dispersed. The shock-absorbing plate between the stirring tank and the support frame can buffer the impact force when the vibration motor is working and reduce the wear of equipment parts.
[0018] 3. The oil guide pipe of this utility model circulates within the cooling layer, absorbing the heat transferred from the inner liner, thereby cooling the material inside the tank and preventing high-temperature agglomeration and oxidation.
[0019] 4. The pressure sensor on the cover of this utility model and the one-way vent valve form a pressure protection mechanism, which can monitor and release excessive pressure inside the tank in real time.
[0020] 5. During unloading, the first blower assists in blowing air to accelerate the discharge of materials and prevent blockage of the unloading pipe. After unloading, the second blower cleans the bottom of the tank through the air blowing pipe. The multi-directional branch pipes of the blowing component realize all-round air blowing inside the tank. With the slight rotation of the scraper, residual materials can be quickly cleaned. Attached Figure Description
[0021] Figure 1 This is a three-dimensional schematic diagram of the present invention;
[0022] Figure 2 This is the front view of the present invention;
[0023] Figure 3 This is a partial cross-sectional view of the main view of this utility model;
[0024] Figure 4 This is a partial cross-sectional schematic diagram of the top view of this utility model;
[0025] In the diagram: 1. Mixing tank; 2. Support frame; 3. Cover; 4. Feed inlet; 5. Pressure sensor; 6. One-way vent valve; 7. Central mixing shaft; 8. Planetary mixing shaft; 9. Main drive motor; 10. Sun gear; 11. Planetary gear; 12. Planetary support; 13. Horizontal mixing blade; 14. Scraper; 15. Spiral mixing blade; 18. Discharge pipe; 19. Discharge valve; 20. T-connector; 21. First blower; 22. Air blowing pipe; 23. Air blowing valve; 24. Second blower; 25. Main pipe; 26. Branch pipe; 27. Vibration motor; 28. Shock absorber; 29. Protective outer shell; 30. Insulation layer; 31. Cooling layer; 32. Inner liner; 33. Oil guide pipe; 34. Oil cooler. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0027] In this application, the terms "upper," "inner," "outer," "middle," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.
[0028] like Figure 1-4 As shown, a magnetic material mixing and stirring device for the production of plastic magnetic rings includes a mixing tank 1 and a support frame 2. The mixing tank 1 is connected to the support frame 2, and a vibration motor 27 is connected to the bottom of the mixing tank 1. A shock-absorbing plate 28 is connected between the mixing tank 1 and the support frame 2. The mixing tank 1 includes, from the outside to the inside, a protective outer shell 29, a heat insulation layer 30, a cooling layer 31, and an inner liner 32. The cooling layer 31 is connected to an oil cooler 34 through an oil guide pipe 33.
[0029] Furthermore, the mixing tank 1 has a cover 3, on which a feed inlet 4, a pressure sensor 5, and a one-way vent valve 6 are connected. A planetary mixing mechanism is installed inside the cover 3, which includes a central mixing shaft 7 and multiple planetary mixing shafts 8. The central mixing shaft 7 is vertically positioned on the axis of the mixing tank 1, and the planetary mixing shafts 8 are evenly distributed around the central mixing shaft 7. A main drive motor 9 is connected to the top of the central mixing shaft 7 and is fixedly connected to the cover 3. A sun gear 10 is fixedly connected to the central mixing shaft 7, and a planetary gear 11 is fixedly connected to the top of the planetary mixing shafts 8. A planetary support 12 is fixedly connected to the inner side of the top of the mixing tank 1. The sun gear 10 meshes with the planetary gear 11, and both the planetary gear 11 and the sun gear 10 are rotatably connected to the planetary support 12.
[0030] Furthermore, a transverse stirring blade 13 is fixedly connected to the bottom of the central stirring shaft 7, and a scraper 14 is connected to the outside of the transverse stirring blade 13. The transverse stirring blade 13 is in contact with the bottom wall of the mixing tank 1, and the scraper 14 is in contact with the inner wall of the mixing tank 1. The top of the transverse stirring blade 13 is inclined, and the end of the transverse stirring blade 13 closest to the central stirring shaft 7 is the highest point. A spiral stirring blade 15 is coaxially fixedly connected to the planetary stirring shaft 8. The spiral stirring blade 15 has serrated cutting edges, and several material flow holes are evenly distributed on the spiral stirring blade 15.
[0031] Furthermore, a discharge pipe 18 is connected to the bottom side wall of the mixing tank 1, a discharge valve 19 is connected to the discharge pipe 18, a tee pipe 20 is connected to the end of the discharge pipe 18, and a first blower 21 is connected to the upper end of the tee pipe 20. An air blowing pipe 22 is also connected to the side wall of the mixing tank 1, symmetrically arranged with the discharge pipe 18. An air blowing valve 23 is connected to the air blowing pipe 22, and a second blower 24 is connected to the end of the air blowing pipe 22. A material blowing assembly is connected to the top side wall of the mixing tank 1. The material blowing assembly includes a main pipe 25, and multiple branch pipes 26 are connected to the main pipe 25, with the blowing directions of the branch pipes 26 being inconsistent.
[0032] The working process of this utility model is as follows:
[0033] First, open the feed port 4 on the cover 3, put the magnetic material and other auxiliary materials into the inner liner 32 of the mixing tank 1, close the feed port 4, and monitor the pressure inside the tank in real time through the pressure sensor 5. If the pressure is too high, the one-way vent valve 6 will automatically open to release pressure and ensure safe operation.
[0034] Then the main drive motor 9 is started, which drives the central stirring shaft 7 to rotate. The sun gear 10 on the central stirring shaft 7 meshes with the planetary gear 11 at the top of the planetary stirring shaft 8. The planetary support 12 is fixed to the inside of the tank to provide meshing support, thereby enabling the planetary stirring shaft 8 to rotate autonomously. The horizontal stirring blade 13 at the bottom of the central stirring shaft 7 rotates in contact with the bottom of the tank. The inclined design can stir the bottom material upward. The outer scraper 14 rotates in contact with the tank wall to prevent the material from accumulating on the tank wall. The spiral stirring blade 15 on the planetary stirring shaft 8 rotates with the shaft. Its serrated cutting edge can break up magnetic material agglomerates. The spiral structure pushes the material up and down to circulate. The material flow holes on the blade further enhance the material convection and improve the mixing uniformity.
[0035] During the stirring process, if the material heats up due to friction, the oil cooler 34 is started. The cold oil circulates in the cooling layer 31 through the oil guide pipe 33, absorbing the heat transferred by the inner liner 32, thereby cooling the material in the tank. The insulation layer 30 can reduce the heat exchange between the cooling layer 31 and the outside world, ensuring temperature control efficiency. The protective shell 29 protects the internal structure.
[0036] After mixing is complete, turn off the main drive motor 9, open the discharge valve 19 on the discharge pipe 18, and the material is discharged through the discharge pipe 18. At the same time, start the first blower 21 to blow air into the discharge pipe 18 to help the material be discharged quickly and avoid residue in the pipe. At the same time, open the air valve 23 on the air blowing pipe 22 and start the second blower 24 to blow air into the tank to clean the residue at the bottom of the tank.
[0037] After unloading, the blowing assembly is started simultaneously. After the main pipe 25 is connected to the air source, multiple branch pipes 26 in different directions blow air into the tank at multiple angles. With the slight rotation of the scraper 14, the tank is cleaned in all directions.
Claims
1. A magnetic material mixing and stirring device for plastic magnetic ring production, comprising a stirring tank body (1) and a supporting frame (2), characterized in that, The mixing tank (1) is connected to the support frame (2). The mixing tank (1) has a cover (3). The cover (3) is connected to a feed inlet (4), a pressure sensor (5), and a one-way vent valve (6). The cover (3) is equipped with a planetary mixing mechanism, which includes a central mixing shaft (7) and multiple planetary mixing shafts (8). A transverse stirring paddle (13) is fixedly connected to the bottom of the central stirring shaft (7). A scraper (14) is connected to the outside of the transverse stirring paddle (13). The transverse stirring paddle (13) is in contact with the bottom wall of the stirring tank (1). The scraper (14) is in contact with the inner wall of the stirring tank (1). A spiral stirring paddle (15) is coaxially fixedly connected to the planetary stirring shaft (8). The bottom side wall of the mixing tank (1) is connected to a discharge pipe (18), a discharge valve (19) is connected to the discharge pipe (18), a three-way pipe (20) is connected to the end of the discharge pipe (18), and a first blower (21) is connected to the upper end of the three-way pipe (20).
2. The magnetic material mixing and stirring device for plastic magnetic ring production according to claim 1, characterized in that, The top of the transverse stirring paddle (13) is inclined, and the end of the transverse stirring paddle (13) closest to the central stirring shaft (7) is the highest point.
3. The magnetic material mixing and stirring device for producing plastic magnetic rings according to claim 1, characterized in that, The spiral stirring paddle (15) has a serrated cutting edge on its edge, and a number of material flow holes are evenly distributed on the spiral stirring paddle (15).
4. The magnetic material mixing and stirring device for producing plastic magnetic rings according to claim 1, characterized in that, The side wall of the mixing tank (1) is also connected to an air blowing pipe (22), which is symmetrically arranged with the unloading pipe (18). An air blowing valve (23) is connected to the air blowing pipe (22), and a second blower (24) is connected to the end of the air blowing pipe (22).
5. The magnetic material mixing and stirring device for producing plastic magnetic rings according to claim 1, characterized in that, The top side wall of the mixing tank (1) is connected to a blowing assembly, which includes a main pipe (25) and multiple branch pipes (26) connected to the main pipe (25). The blowing directions of the branch pipes (26) are not the same.
6. The magnetic material mixing and stirring device for producing plastic magnetic rings according to claim 1, characterized in that, The bottom of the mixing tank (1) is connected to a vibration motor (27), and a shock-absorbing plate (28) is connected between the mixing tank (1) and the support frame (2).
7. The magnetic material mixing and stirring device for producing plastic magnetic rings according to claim 1, characterized in that, The mixing tank (1) includes, from the outside to the inside, a protective outer shell (29), a heat insulation layer (30), a cooling layer (31) and an inner liner (32). The cooling layer (31) is connected to the oil cooler (34) through an oil guide pipe (33).
8. The magnetic material mixing and stirring device for producing plastic magnetic rings according to claim 1, characterized in that, The central stirring shaft (7) is vertically positioned on the axis of the stirring tank (1), and the planetary stirring shafts (8) are evenly distributed around the central stirring shaft (7). The top of the central stirring shaft (7) is connected to a main drive motor (9), which is fixedly connected to the cover (3). A sun gear (10) is fixedly connected to the central stirring shaft (7), and a planetary gear (11) is fixedly connected to the top of the planetary stirring shaft (8). A planetary support (12) is fixedly connected to the inner side of the top of the stirring tank (1). The sun gear (10) meshes with the planetary gear (11), and both the planetary gear (11) and the sun gear (10) are rotatably connected to the planetary support (12).