Mixing device for efficiently mixing and preparing polyimide film material

Abstract

The invention relates to a mixing device for efficiently mixing and preparing a polyimide film material, which comprises a drying device, a feeding device, a grinding device and a discharging device, and all the devices are connected through flanges to form a continuous production process. The drying device comprises a cylindrical part and a conical part, a drying roller is arranged in the drying device, a servo motor is adopted for driving, materials are heated through a heating plate, and the materials make full contact with hot air in the drying process. The feeding device conveys materials to the grinding device through a screw rod, the grinding device is composed of a rotating rod and a grinding sheet, and material particles are effectively refined through accurate grinding hole design. And the ground materials are automatically discharged through the discharging device, so that manual intervention is reduced. Due to the integrated design of the device, the production efficiency is improved, the labor cost is saved, and the production process is optimized.

Description

Technical Field

[0001] The present invention relates to a mixing device for efficiently mixing and preparing polyimide film materials. Background Art

[0002] With the progress of technology and the development of industrialization, polyimide films have been widely used in the fields of electronics, aerospace, automotive, and advanced materials due to their excellent high-temperature resistance, chemical stability, good electrical insulation, and mechanical strength. Especially in the fields of high-performance electronic devices, flexible printed circuits, and thin-film capacitors, the demand for polyimide films continues to grow. To meet this demand, the production process of polyimide films needs to be efficient, precise, and ensure the quality stability of the final product.

[0003] In the production process of polyimide films, the mixing and grinding processes of raw materials are key steps. The traditional preparation methods of polyimide film materials generally include steps such as drying, mixing, grinding, and forming of raw materials. The existing steps of drying, mixing, and grinding of raw materials are carried out separately, and manual transfer of materials is required between two steps, resulting in a decrease in efficiency.

[0004] Therefore, how to solve the problems of low efficiency in separate steps and high labor costs of personnel during the manufacturing process of polyimide films needs to be addressed. Summary of the Invention

[0005] The purpose of the present invention is to solve the above-mentioned deficiencies of the prior art, and provide a mixing device for efficiently mixing and preparing polyimide film materials. By setting up a drying device and a discharging device, an integrated structure of drying, mixing, and grinding is formed, increasing production efficiency and reducing manual heavy physical labor. The purpose of the present invention is achieved as follows:

[0006] The present invention provides a mixing device for efficiently mixing and preparing polyimide film materials, including a drying device. The drying device includes a cylindrical part and a conical part installed at the lower part of the cylindrical part. The upper part of the cylindrical part is provided with a first feed port, and the lower part of the conical part is installed with a first discharge port. The first discharge port is communicated with a supply device through a first flange. A screw is provided inside the supply device, and a motor assembly is provided at one end of the supply device. The screw is connected to the motor assembly. The supply device is communicated with a grinding device through a second flange. A motor assembly is provided at the upper part of the grinding device, and a rotating rod is provided inside the grinding device. The rotating rod is connected to the motor assembly. At least four grinding sheets are installed on the rotating rod. At least four grinding plates are also fixed inside the grinding device. The grinding plates are cones protruding downward, and the grinding sheets are triangular sheets protruding downward. The grinding sheets are installed inside the grinding plates, and the height of the grinding sheets is less than the height of the cones. The lower part of the grinding device is installed with a discharge device through a third flange; at least two drying drums are rotatably installed inside the conical part, a fixing frame is installed inside the cylindrical part, the drying drums are connected to the fixing frame through rotating shafts, a servo motor is installed inside the conical part, and the servo motor is connected to the drying drums through belts. A heating plate is also provided inside the cylindrical part, and the heating plate is fixed to the inner wall of the cylindrical part through a fixing plate.

[0007] In order to further increase the drying effect, there are two drying drums, two servo motors, and two belts. A number of protruding pieces are installed circumferentially inside the drying drums, and the protruding pieces at different axial positions are installed staggeredly.

[0008] In order to further increase the drying effect, the protruding pieces include a vertical part and a claw part. The vertical part is perpendicular to the inner wall of the drying drum, and the claw part is installed at the upper part of the vertical part.

[0009] Furthermore, in order to improve the working efficiency of the motor, the motor assembly includes a motor and a coupling.

[0010] Furthermore, in order to achieve a better grinding effect, grinding holes are provided on the grinding plates.

[0011] Furthermore, in order to save the discharging time, a screw is provided inside the discharging device, a motor assembly is provided at one end of the discharging device, the motor assembly is connected to the screw, and a third discharge port is provided at one end of the discharging device. The position of the third discharge port corresponds to the motor assembly.

[0012] Furthermore, in order to increase the transmission efficiency of the servo motor, the servo motor is fixed inside the conical part through a support frame.

[0013] Furthermore, in order to enhance the shunt effect of the heating plate, the heating plate is conical in shape, and the taper of the heating plate is 60 degrees.

[0014] Furthermore, in order to improve the durability of the device, the material of the grinding sheet is stainless steel.

[0015] Furthermore, in order to improve the durability of the device, the material of the grinding plate is stainless steel.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: Through the combination of the rotating drying drum and the heating plate, the drying device of the present invention enables the material to uniformly contact the hot air, thereby achieving efficient and uniform drying, and avoiding problems such as local overheating or uneven drying that may occur in traditional drying devices;

[0017] Through the integrated design, the efficiency in the production and transfer process is improved, the purity of raw material processing is increased, and the heavy manual labor is reduced. Description of the Drawings

[0018] Figure 1 is a front view schematic diagram of a mixing device for efficiently mixing and preparing polyimide film materials;

[0019] Figure 2 is a three-dimensional view schematic diagram of a mixing device for efficiently mixing and preparing polyimide film materials;

[0020] Figure 3 is a top view schematic diagram of a mixing device for efficiently mixing and preparing polyimide film materials;

[0021] Figure 4 is Figure 3 a sectional view schematic diagram along A-A;

[0022] Figure 5 is Figure 4 a partial enlarged view of A in;

[0023] Figure 6 is a three-dimensional sectional view schematic diagram of the drying drum of a mixing device for efficiently mixing and preparing polyimide film materials;

[0024] In the figure: 1. Motor; 2. Discharging device; 3. Motor combination; 4. Coupling; 5. First feed inlet; 6. Cylindrical part; 7. Drying device; 8. Conical part; 9. First discharge outlet; 10. First flange; 11. Feeding device; 12. Second flange; 13. Grinding device; 14. Second discharge outlet; 15. Third flange; 17. Grinding plate; 18. Grinding piece; 19. Grinding hole; 20. Fixed plate; 21. Heating plate; 22. Fixed frame; 23. Rotating shaft; 24. Servo motor; 25. Support frame; 26. Belt; 27. Drying drum; 28. Lug; 29. Third discharge outlet; 30. Screw; 31. Rotating rod. Detailed implementation mode

[0025] To deepen the understanding of the present invention, the present invention will be further described in detail below in combination with embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0026] As Figures 1-6 shown, an embodiment of the present invention provides a mixing device for efficiently mixing and preparing polyimide film materials, which includes a drying device 7. The drying device 7 includes a cylindrical part 6 and a conical part 8 installed at the lower part of the cylindrical part 6. A first feed inlet 5 is provided at the upper part of the cylindrical part 6, and a first discharge outlet 9 is installed at the lower part of the conical part 8. The first discharge outlet 9 is communicated with the feeding device 11 through a first flange 10. A screw 30 is arranged inside the feeding device 11. One end of the feeding device 11 is provided with a motor combination 3. The screw 30 is connected with the motor combination 3. The feeding device 11 is communicated with the grinding device 13 through a second flange 12. A motor combination 3 is provided at the upper part of the grinding device 13. A rotating rod 31 is arranged inside the grinding device 13. The rotating rod 31 is connected with the motor combination 3. At least four grinding pieces 18 are installed on the rotating rod 31. At least four grinding plates 17 are also fixed inside the grinding device 13. The grinding plates 17 are downwardly protruding cones, and the grinding pieces 18 are downwardly protruding triangular pieces. The grinding pieces 18 are installed inside the grinding plates 17. The height of the grinding pieces 18 is less than the height of the cones. The lower part of the grinding device 13 is installed with a discharging device 2 through a third flange 15; at least two drying drums 27 are rotatably installed inside the conical part 8. A fixed frame 22 is installed inside the cylindrical part 6. The drying drums 27 are connected with the fixed frame 22 through a rotating shaft 23. A servo motor 24 is installed inside the conical part. The servo motor 24 is connected with the drying drums 27 through a belt 26. A heating plate 21 is also arranged inside the cylindrical part 6. The heating plate 21 is fixed to the inner wall of the cylindrical part 6 through a fixed plate 20.

[0027] In this embodiment, there are two drying drums 27, two servo motors 24, and two belts 26. A number of tabs 28 are circumferentially installed inside the drying drum 27, and the tabs 28 at different axial positions are installed staggeredly; the tab 28 includes a vertical portion and a claw portion, the vertical portion is perpendicular to the inner wall of the drying drum 27, and the claw portion is installed on the upper part of the vertical portion; the motor assembly 3 includes a motor 1 and a coupling 4; the grinding plate 17 is provided with grinding holes 19; a screw 30 is provided inside the discharging device 2, one end of the discharging device 2 is provided with a motor assembly 3, the motor assembly 3 is connected to the screw 30, one end of the discharging device 2 is provided with a third discharging port 29, and the position of the third discharging port corresponds to the motor assembly 3; the servo motor 24 is fixed inside the conical portion through a support frame 25; the heating plate 21 is conical in shape, and the taper of the heating plate 21 is 60 degrees; the grinding sheet 18 is made of stainless steel; the grinding plate 17 is made of stainless steel.

[0028] It should be noted that the heating plate 21 is a general technical means, which works by electric heating, and the heating range is between 50 and 300 degrees Celsius.

[0029] In a possible usage scenario, first, according to the formulation requirements of the product, appropriate raw materials such as polyimide resin, filler, toughening agent, etc. are selected and put into the first feeding port 5. After the raw materials impact the heating plate, they are initially heated by the heating plate, and then the raw materials enter the drying drum 27 under the action of the inclination angle of the heating plate. The drying drum 27 will rotate driven by the servo motor 24, allowing the raw materials to fully contact the hot air in the drying device 7 during rolling. Compared with the existing drying device 7, this device is directly connected to the grinding device 13 without manual transfer. Then the raw materials flow out from the first discharging port 9 and enter the grinding device 13. The grinding device 13 is vertically arranged. The raw materials are ground into smaller diameters under the action of the grinding plate 17, the grinding sheet 18, and the grinding holes 19. The raw materials then come out from the second discharging port 14, pass through the discharging device 2 and enter the third discharging port 29. Since the third discharging port 29 discharges materials through the screw 30 inside the discharging device 2 and is at a higher height, the third discharging port 29 can be directly connected to the next device without manual transfer.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not restrictive. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A mixing device for efficiently mixing and preparing polyimide film materials, characterized in that: The invention comprises a drying device, wherein the drying device comprises a cylindrical portion and a conical portion installed at the lower portion of the cylindrical portion, the upper portion of the cylindrical portion is provided with a first feed port, the lower portion of the conical portion is provided with a first discharge port, the first discharge port is communicated with a supply device through a first flange, a screw is provided inside the supply device, a motor assembly is provided at one end of the supply device, the screw is connected to the motor assembly, the supply device is communicated with a grinding device through a second flange, the upper portion of the grinding device is provided with a motor assembly, the inner portion of the grinding device is provided with a rotating rod, the rotating rod is connected to the motor assembly, at least four grinding sheets are installed on the rotating rod, and the grinding device At least four grinding plates are also fixed inside, and the grinding plate is a downwardly protruding cone, and the grinding sheet is a downwardly protruding triangular sheet, which is installed in the grinding plate, and the height of the grinding sheet is less than the height of the cone. A discharging device is installed at the lower part of the grinding device through a third flange; at least two drying drums are rotatably installed inside the conical part, a fixed frame is installed inside the cylindrical part, and the drying drum is connected to the fixed frame through a rotating shaft, a servo motor is installed inside the conical part, and the servo motor is connected to the drying drum through a belt, and a heating plate is also provided inside the cylindrical part, and the heating plate is fixed to the inner wall of the cylindrical part through a fixed plate.

2. A mixing device for efficiently mixing and preparing polyimide film materials according to claim 1, characterized in that: The drying drums are provided with two, the servo motors are provided with two, the belts are provided with two, and a plurality of convex pieces are installed in the circumferential direction of the drying drum, and the convex pieces at different axial positions are installed in an alternating manner.

3. A mixing device for efficiently mixing and preparing polyimide film materials according to claim 2, characterized in that: The protruding piece includes a vertical portion and a claw portion, the vertical portion is perpendicular to the inner wall of the drying drum, and the claw portion is installed on the upper portion of the vertical portion.

4. A mixing device for efficiently mixing and preparing polyimide film materials according to claim 1, characterized in that: The motor combination comprises a motor and a coupling.

5. A mixing device for efficiently mixing and preparing polyimide film materials according to claim 1, characterized in that: The grinding plate is provided with grinding holes.

6. A mixing device for efficiently mixing and preparing polyimide film materials according to claim 1, characterized in that: A screw is provided inside the discharging device, a motor assembly is provided at one end of the discharging device, the motor assembly is connected to the screw, and a third discharging port is provided at one end of the discharging device, the position of the third discharging port corresponds to the motor assembly.

7. A mixing device for efficiently mixing and preparing polyimide film materials according to claim 1, characterized in that: The servo motor is fixed in the conical part through a supporting frame.

8. A mixing device for efficiently mixing and preparing polyimide film materials according to claim 1, characterized in that: The heating plate is in a conical shape, and the taper of the heating plate is 60 degrees.

9. A mixing device for efficiently mixing and preparing polyimide film materials according to claim 1, characterized in that: The grinding sheet is made of stainless steel.

10. A mixing device for efficiently mixing and preparing polyimide film materials according to claim 1, characterized in that: The grinding plate is made of stainless steel.

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