A feeding device for polyimide film production

Abstract

The utility model belongs to the field of film production, specifically speaking is a kind of polyimide film production is used feeding device, including bottom plate, the bottom plate top is firmly connected with reation kettle through first support, the bottom plate top is provided with feeding mechanism, the feeding mechanism includes: feeding subassembly, including bottom plate top is firmly connected with feeding barrel through second support, the feeding barrel top is connected with bucket lid through the lifting assembly of setting, gear pump is installed to the feeding barrel outside, the output of gear pump is connected with conveying pipe, conveying pipe other end is connected with reation kettle, the bucket lid is rotatably connected with rotating tube through first rotary hole, and rotating tube bottom is located in feeding barrel, to solve the effect that feeding device can only provide storage and feeding, do not have stirring function, make if raw material is the mixture of multiple components, easily cause these components to precipitate or stratification, affect the problem of the uniformity of solution.

Description

Technical Field

[0001] This utility model belongs to the field of film production, specifically a feeding device for polyimide film production. Background Technology

[0002] Polyimide films are widely used in electronics, aerospace, and other fields due to their excellent high-temperature resistance, mechanical properties, and chemical stability. In the production process of polyimide films, the feeding device is one of the key pieces of equipment, as its performance directly affects the quality of the film and production efficiency. The synthesis of polyimide precursor resins (such as polyamic acid) is the first step in polyimide film production. The feeding device provides a precise supply of raw materials to the reactor, ensuring the uniformity and stability of resin synthesis.

[0003] In the existing technology, the feeding device can only provide storage and feeding effects, and does not have a stirring function. This makes it easy for these components to precipitate or separate into layers if the raw material is a mixture of multiple components, affecting the uniformity of the solution.

[0004] Therefore, this utility model provides a feeding device for the production of polyimide films. Utility Model Content

[0005] To overcome the shortcomings of existing technologies and address the issue that feeding devices can only provide storage and feeding functions without stirring, which can easily cause precipitation or stratification of components if the raw materials are a mixture of multiple components, thus affecting the uniformity of the solution.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A feeding device for polyimide film production, comprising a base plate, a reaction vessel fixedly connected to the top of the base plate via a first support, and a feeding mechanism provided on the top of the base plate, the feeding mechanism comprising:

[0007] The feeding assembly includes a feeding bucket fixed to the top of a base plate via a second bracket. A bucket lid is connected to the top of the feeding bucket via a lifting assembly. A gear pump is installed on the outside of the feeding bucket. The output end of the gear pump is connected to a conveying pipe. The other end of the conveying pipe is connected to a reaction vessel. A rotating pipe is rotatably connected to the bucket lid via a first rotating hole. The bottom of the rotating pipe is located inside the feeding bucket. A first impeller is fixed to the outer circular wall at the bottom of the rotating pipe. A concave frame is fixed to the top of the bucket lid. A motor is fixed to the bottom of the concave frame laterally. A rotating rod is provided at the output end of the motor and is rotatably connected between the inner walls of the rotating pipe.

[0008] A reversing component is mounted on the rotating rod to drive the rotating tube to rotate.

[0009] Disassemble the component, which is located at the bottom of the rotating rod for stirring and cleaning the walls of the feeding tank.

[0010] Preferably, the reversing assembly includes a first helical gear fixedly connected to a rotating rod, a rectangular block fixedly connected to the top of the bucket lid, a rotating shaft rotatably connected to the rectangular block through a rotating hole, a second helical gear fixedly connected to one end of the rotating shaft, and the second helical gear meshing with the first helical gear.

[0011] Preferably, a third helical gear is fixedly connected to one end of the rotating tube at the top of the barrel lid, and the third helical gear meshes with the second helical gear.

[0012] Preferably, the disassembly assembly includes a cleaning unit and a through hole at the bottom of the rotating rod. A second impeller is provided at the bottom of the rotating rod, and a pair of first fixing blocks are fixedly connected to the top of the second impeller. Each pair of first fixing blocks has a first fixing hole, so that the rotating rod and the pair of first fixing blocks are connected by bolts.

[0013] Preferably, the cleaning unit includes a circular block at the bottom of the rotating rod, a set of scrapers fixedly connected to the circular block, a circular ring fixedly connected between the set of scrapers, the circular ring being sleeved on the rotating rod, and a pair of second fixing blocks fixedly connected to the top of the circular block, each pair of second fixing blocks having a second fixing hole, so that the rotating rod and the pair of second fixing blocks are connected by bolts.

[0014] Preferably, the lifting assembly includes a fixed ring fixed to the feeding barrel, a pair of hydraulic rods fixed to the top of the fixed ring, a connecting block fixed to the top of the hydraulic rods, and the connecting block fixed to the concave frame.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. The feeding device for polyimide film production described in this utility model uses a rotating impeller to generate complex turbulence and convection in the liquid, breaking the liquid stratification phenomenon and improving the anti-sedimentation effect. This complex flow pattern can remix liquid or solid particles of different densities, preventing them from stratifying due to gravity. The rotating impeller can generate higher shear force, which helps to break larger particles or droplets into smaller particles, thereby reducing the possibility of sedimentation.

[0017] 2. The feeding device for polyimide film production described in this utility model allows the operator to replace the second impeller via a scraper, which cleans and discharges material from the inner wall of the feeding barrel, preventing material clumps from adhering to the inner wall of the feeding barrel and affecting the quality of subsequent materials. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 This is a perspective view of the present invention;

[0020] Figure 2 This is a schematic diagram of the first impeller in this utility model;

[0021] Figure 3 This is a schematic diagram of the second impeller in this utility model;

[0022] Figure 4 This is a schematic diagram of the scraper in this utility model;

[0023] Figure 5 This is a schematic diagram of the rotating rod in this utility model;

[0024] In the diagram: 1. Base plate; 2. Reactor; 3. Feeding tank; 4. Tank lid; 5. Gear pump; 6. Conveying pipe; 7. Rotating pipe; 8. First impeller; 9. Concave frame; 10. Motor; 11. Rotating rod; 12. First helical gear; 13. Rectangular block; 14. Rotating shaft; 15. Second helical gear; 16. Third helical gear; 17. Through hole; 18. Second impeller; 19. First fixing block; 20. First fixing hole; 21. Bolt; 22. Circular block; 23. Scraper; 24. Second fixing block; 25. Circular ring; 26. Second fixing hole; 27. Fixing ring; 28. Hydraulic rod; 29. ​​Connecting block. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] like Figures 1 to 5 As shown in the figure, a feeding device for polyimide film production according to an embodiment of the present invention includes a base plate 1, a reaction vessel 2 fixedly connected to the top of the base plate 1 via a first bracket, and a feeding mechanism provided on the top of the base plate 1. The feeding mechanism includes a feeding assembly, including a feeding bucket 3 fixedly connected to the top of the base plate 1 via a second bracket, a bucket cover 4 connected to the top of the feeding bucket 3 via a lifting assembly, a gear pump 5 installed on the outside of the feeding bucket 3, the output end of the gear pump 5 connected to a conveying pipe 6, the other end of the conveying pipe 6 connected to the reaction vessel 2, and the bucket cover 4... A rotating tube 7 is rotatably connected through the first rotating hole, and the bottom of the rotating tube 7 is located inside the feeding bucket 3. A first impeller 8 is fixed to the outer circular wall at the bottom of the rotating tube 7. A concave frame 9 is fixed to the top of the bucket cover 4. A motor 10 is fixed to the bottom of the concave frame 9 laterally. A rotating rod 11 is provided at the output end of the motor 10, and the rotating rod 11 is rotatably connected between the inner walls of the rotating tube 7. A reversing component is provided on the rotating rod 11 to drive the rotating tube 7 to rotate. A disassembly component is provided at the bottom of the rotating rod 11 for stirring and cleaning the bucket wall of the feeding bucket 3.

[0027] During operation, the first impeller 8 can be used for stirring, and the material can be kept in motion by rotating, thereby avoiding sedimentation and stratification. This solves the problem that in the existing technology, the feeding device can only provide storage and feeding effects and does not have a stirring function. If the raw material is a mixture of multiple components, it is easy for these components to precipitate or stratify, affecting the uniformity of the solution.

[0028] The reversing assembly includes a first helical gear 12 fixedly connected to the rotating rod 11, a rectangular block 13 fixedly connected to the top of the bucket lid 4, a rotating shaft 14 rotatably connected to the rectangular block 13 through a rotating hole, a second helical gear 15 fixedly connected to one end of the rotating shaft 14, and the second helical gear 15 meshing with the first helical gear 12.

[0029] A third helical gear 16 is fixedly connected to one end of the rotating tube 7 located at the top of the barrel cover 4. The third helical gear 16 meshes with the second helical gear 15.

[0030] During operation, the motor 10 drives the rotating rod 11 and the first helical gear 12 to rotate, which in turn drives the meshing second helical gear 15 to rotate. The second helical gear 15 rotates with the third helical gear 16 fixed to the rotating tube 7, which in turn drives the rotating tube 7 to rotate, thus enabling the first impeller 8 to rotate and preventing material delamination.

[0031] The disassembly assembly includes a cleaning unit and a through hole 17 at the bottom of the rotating rod 11. A second impeller 18 is provided at the bottom of the rotating rod 11, and a pair of first fixing blocks 19 are fixed to the top of the second impeller 18. Each pair of first fixing blocks 19 has a first fixing hole 20, so that the rotating rod 11 and the pair of first fixing blocks 19 are connected by bolts 21.

[0032] The cleaning unit includes a circular block 22 at the bottom of the rotating rod 11, a set of scrapers 23 fixedly connected to the circular block 22, a circular ring 25 fixedly connected between the scrapers 23, the circular ring 25 being sleeved on the rotating rod 11, and a pair of second fixing blocks 24 fixedly connected to the top of the circular block 22. Each pair of second fixing blocks 24 has a second fixing hole 26, so that the rotating rod 11 and the pair of second fixing blocks 24 are connected by bolts 21.

[0033] During operation, the scraper 23 allows the operator to replace the second impeller 18, enabling the scraper 23 to clean and discharge the material from the inner wall of the feeding tank 3. This prevents material clumps from adhering to the inner wall of the feeding tank 3 and affecting the quality of subsequent materials. The forward and reverse rotation of the impeller can generate complex turbulence and convection in the liquid, breaking up the liquid stratification and improving the anti-sedimentation effect. This complex flow pattern can remix liquid or solid particles of different densities, preventing them from stratifying due to gravity. The forward and reverse rotation of the impeller can generate higher shear force, which helps to break larger particles or droplets into smaller particles, thereby reducing the possibility of sedimentation.

[0034] The lifting assembly includes a fixed ring 27 fixed to the feeding barrel 3, a pair of hydraulic rods 28 fixed to the top of the fixed ring 27, a connecting block 29 fixed to the top of the hydraulic rods 28, and the connecting block 29 fixed to the concave frame 9.

[0035] During operation, the hydraulic rod 28 can lift the bucket lid 4, keeping it at a stable height so that the operator can replace the scraper 23 and the second impeller 18.

[0036] Working principle: The first impeller 8 can be set to stir the material. The rotation of the first impeller 8 keeps the material in motion, thereby avoiding sedimentation and stratification. This solves the problem that in the existing technology, the feeding device can only provide storage and feeding effects and does not have a stirring function. If the raw material is a mixture of multiple components, it is easy for these components to precipitate or stratify, affecting the uniformity of the solution.

[0037] The motor 10 drives the rotating rod 11 and the first helical gear 12 to rotate, so that the first helical gear 12 can drive the meshing second helical gear 15 to rotate. The second helical gear 15 and the third helical gear 16 fixed on the rotating tube 7 rotate, which can drive the rotating tube 7 to rotate, so that the first impeller 8 can rotate, thus avoiding material delamination.

[0038] The scraper 23 allows workers to replace the second impeller 18, enabling the scraper 23 to clean and discharge the material from the inner wall of the feeding tank 3. This prevents material clumps from adhering to the inner wall of the feeding tank 3 and affecting the quality of subsequent materials. The forward and reverse rotation of the impeller can generate complex turbulence and convection in the liquid, breaking up the liquid stratification and improving the anti-sedimentation effect. This complex flow pattern can remix liquid or solid particles of different densities, preventing them from stratifying due to gravity. The forward and reverse rotation of the impeller can generate higher shear force, which helps to break larger particles or droplets into smaller particles, thereby reducing the possibility of sedimentation.

[0039] The hydraulic rod 28 can lift the lid 4, keeping it at a stable height so that workers can replace the scraper 23 and the second impeller 18.

[0040] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0041] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A feeding device for polyimide film production, comprising a base plate (1), wherein a reaction vessel (2) is fixedly connected to the top of the base plate (1) via a first support, characterized in that: The bottom plate (1) is provided with a feeding mechanism at its top, the feeding mechanism comprising: The feeding assembly includes a feeding bucket (3) fixed to the top of the base plate (1) by a second bracket. The top of the feeding bucket (3) is connected to a bucket cover (4) by a lifting assembly. A gear pump (5) is installed on the outside of the feeding bucket (3). The output end of the gear pump (5) is connected to a conveying pipe (6). The other end of the conveying pipe (6) is connected to the reactor (2). A rotating pipe (7) is rotatably connected to the bucket cover (4) through a first rotating hole. The bottom of the rotating pipe (7) is located inside the feeding bucket (3). A first impeller (8) is fixed to the outer circular wall at the bottom of the rotating pipe (7). A concave frame (9) is fixed to the top of the bucket cover (4). A motor (10) is fixed to the bottom of the concave frame (9) laterally. A rotating rod (11) is provided at the output end of the motor (10). The rotating rod (11) is rotatably connected between the inner walls of the rotating pipe (7). A reversing assembly is mounted on the rotating rod (11) to drive the rotating tube (7) to rotate; Disassemble the component and place it at the bottom of the rotating rod (11) for stirring and cleaning the wall of the feeding bucket (3).

2. The feeding device for polyimide film production according to claim 1, characterized in that: The reversing assembly includes a first helical gear (12) fixedly connected to a rotating rod (11), a rectangular block (13) fixedly connected to the top of the bucket lid (4), a rotating shaft (14) rotatably connected to the rectangular block (13) through a rotating hole, a second helical gear (15) fixedly connected to one end of the rotating shaft (14), and the second helical gear (15) meshing with the first helical gear (12).

3. The feeding device for polyimide film production according to claim 2, characterized in that: The rotating tube (7) is fixedly connected to a third helical gear (16) at one end of the rotating tube (7) located at the top of the barrel cover (4), and the third helical gear (16) meshes with the second helical gear (15).

4. The feeding device for polyimide film production according to claim 1, characterized in that: The disassembly assembly includes a cleaning unit and a through hole (17) on the bottom of the rotating rod (11). A second impeller (18) is provided at the bottom of the rotating rod (11), and a pair of first fixing blocks (19) are fixedly connected to the top of the second impeller (18). Each pair of first fixing blocks (19) is provided with a first fixing hole (20), so that the rotating rod (11) and the pair of first fixing blocks (19) are connected by bolts (21).

5. The feeding device for polyimide film production according to claim 4, characterized in that: The cleaning unit includes a circular block (22) at the bottom of the rotating rod (11), a set of scrapers (23) fixedly connected to the circular block (22), a circular ring (25) fixedly connected between the set of scrapers (23), the circular ring (25) being sleeved on the rotating rod (11), and a pair of second fixing blocks (24) fixedly connected to the top of the circular block (22). Each pair of second fixing blocks (24) has a second fixing hole (26) so that the rotating rod (11) and the pair of second fixing blocks (24) are connected by bolts (21).

6. The feeding device for polyimide film production according to claim 1, characterized in that: The lifting assembly includes a fixed ring (27) fixed to the feeding barrel (3), a pair of hydraulic rods (28) fixed to the top of the fixed ring (27), a connecting block (29) fixed to the top of the hydraulic rods (28), and the connecting block (29) fixed to the concave frame (9).

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