A polyimide film production blow flattening device

Abstract

This utility model relates to the field of insulating material processing technology, and in particular to a polyimide film production flattening device, including support plates, a worktable fixed to the top of multiple support plates, and fixed plates fixed to both sides of the worktable. A pair of flattening rollers for flattening the film are rotatably arranged between a pair of fixed plates. A limiting component for limiting the film is connected to the outer side of the pair of flattening rollers. By placing the two sides of the film in the grooves opened in the limiting plates, the two sides of the film can remain fixed and not deviate when being wound by the traction component. At the same time, by changing the distance between the pair of limiting plates, it can adapt to flattening and winding of films of different widths. The servo motor drives the rotation of the air box, which can adjust the angle of the air outlet in real time, which facilitates the adaptive adjustment of the angle according to the film processing conditions, greatly benefiting the flattening treatment of the film after high-temperature imidization.

Description

Technical Field

[0001] This utility model relates to the field of insulating material processing technology, and in particular to a polyimide film production leveling device. Background Technology

[0002] Polyimide film is a high-temperature resistant insulating material for motors and electrical appliances. Its overall preparation method is as follows: polyamic acid solution is cast into a film, then stretched, and then subjected to high-temperature imidization. After the high-temperature imidization treatment, the film needs to be cooled and flattened, which can be done by a blower with a constrained blower port.

[0003] For example, Chinese utility model patent CN219156052U discloses an improved blown film winding device. The device uses a blowing assembly to blow air onto the film entering the winding plate, thereby smoothing the film. By adjusting the assembly, it can be adapted to winding films of different lengths and thicknesses, so that the final winding size is consistent and easier to store.

[0004] In the aforementioned prior art, although the film can be smoothed by blowing air through the air blowing component, there is no component to limit the film. Because the film is soft, if some of the conveyed film deviates and sticks together, if the air blowing component fails to smooth the film surface, all subsequent films will stick together, directly affecting the film production. Utility Model Content

[0005] To address the technical problem that misalignment of some conveyed films can cause all subsequent films to stick together, affecting film production, this invention provides a polyimide film production leveling device.

[0006] This utility model is achieved using the following technical solution: a polyimide film production flattening device, including a support plate, a worktable fixedly connected to the top of multiple support plates, a fixing plate fixedly connected to both sides of the worktable, a pair of flattening rollers for flattening the film rotatably arranged between a pair of fixing plates, a limiting component for limiting the film connected to the outer side of the pair of flattening rollers, and a rotatable blower box provided at the upper end of the worktable, with multiple blowers installed inside the blower box.

[0007] Through the above technical solution, the limiting components on both sides of the worktable limit the film to prevent the traction component from shifting when pulling the film. At the same time, the pair of flattening rollers fixed to both sides of the worktable can not only flatten the film initially, but also ensure that the film on the worktable is under certain tension when pulled by the traction component, and is in a taut state, further ensuring the stability of the film after being flattened by the blower.

[0008] As a further improvement to the above solution, the limiting component includes a pair of limiting plates; the limiting plates have openings for the rotation of a pair of flattening rollers, and a groove for placing a film is formed in the middle of the pair of openings.

[0009] With the above technical solution, a pair of openings are made on a pair of limiting plates, and a pair of flattening rollers rotate in the openings, so that by changing the distance between the pair of limiting plates, films of different widths can be flattened and rolled up; the groove setting ensures that the two sides of the film can remain unchanged when rolled up by the traction component.

[0010] As a further improvement to the above solution, a support frame is fixedly connected between the pair of support plates, the fixing plate is fixedly connected to the side of the support frame, an arc-shaped plate is fixedly connected to the top of the support frame, and the blower box is located between the pair of arc-shaped plates.

[0011] As a further improvement to the above solution, the top of the blower box is provided with a flow hole, and the bottom of the blower box is fixedly connected with an air outlet, which is set in a conical shape.

[0012] With the above technical solution, when the blower is working, air is drawn in through the flow hole at the top of the blower box and blown out through the conical air outlet at the bottom of the blower box, which can ensure the uniformity of the blown air and better flatten the film.

[0013] As a further improvement to the above solution, connecting columns are fixedly connected to the two outer sides of the blower box, and a pair of connecting columns are respectively rotatably connected to the inner sides of a pair of arc-shaped plates. A servo motor coaxial with the connecting column is fixedly connected to the outer side of one of the arc-shaped plates.

[0014] With the above technical solution, the servo motor drives the rotation of the air box, which can adjust the angle of the air outlet in real time. This facilitates the adaptive adjustment of the angle according to the film processing conditions, which greatly benefits the flattening process of the film after high-temperature imidization.

[0015] As a further improvement to the above solution, the worktable surface is an outwardly convex arc shape.

[0016] With the above technical solution, the worktable is convex arc-shaped, which on the one hand further ensures that the film is flat and has a certain tension when blown flat by the hair dryer, and on the other hand, it allows the air blown by the hair dryer to diffuse as much as possible to the two arc-shaped surfaces in different directions, so as to improve the blowing efficiency and quality.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This invention places the two sides of the film within the grooves of the limiting plates, ensuring that the film remains stable during winding by the traction assembly. Furthermore, by changing the distance between the pair of limiting plates, it can accommodate films of different widths for flattening and winding. The servo motor drives the rotation of the air box, allowing for real-time adjustment of the air outlet angle. This facilitates adaptive angle adjustments based on the film processing conditions, greatly benefiting the flattening process of films after high-temperature imidization. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This utility model Figure 1 Enlarged view of point A in the middle;

[0021] Figure 3 This is a top view of the three-dimensional structure of this utility model;

[0022] Figure 4 This is a cross-sectional view of the overall internal structure of this utility model.

[0023] Explanation of key symbols:

[0024] 1. Support plate; 2. Workbench surface; 3. Fixing plate; 4. Flattening roller; 5. Air box; 6. Air blower; 7. Limiting plate; 8. Groove; 9. Support frame; 10. Curved plate; 11. Flow hole; 12. Air outlet; 13. Connecting column; 14. Servo motor. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0026] Please combine Figures 1-4This embodiment of a polyimide film production flattening device includes a support plate 1, with a worktable 2 fixedly attached to the top of multiple support plates 1. Fixing plates 3 are fixedly attached to both sides of the worktable 2. A pair of flattening rollers 4 for flattening the film are rotatably arranged between the pair of fixing plates 3. A limiting component for limiting the film is connected to the outer side of the pair of flattening rollers 4. A rotatable blower box 5 is provided at the upper end of the worktable 2, and multiple blowers 6 are installed inside the blower box 5. The worktable 2 is in an outwardly convex arc shape. The limiting components on both sides of the worktable 2 limit the film, ensuring that the traction component does not deviate when driving the film to slide on the outwardly convex arc-shaped worktable 2. Simultaneously, the pair of flattening rollers 4 fixed to both sides of the worktable 2 not only perform initial flattening of the film but also ensure that the film, pulled by the traction component and located on the worktable 2, has a certain tension and is in a taut state, further ensuring the stability of the film after being flattened by the blowers 6.

[0027] Combination Figure 1 and Figure 2 The limiting assembly includes a pair of limiting plates 7; the limiting plates 7 have openings for the rotation of a pair of flattening rollers 4, and a groove 8 for placing the film is provided in the middle of the pair of openings; through the pair of openings on the pair of limiting plates 7, and with the pair of flattening rollers 4 rotating in the openings, the distance between the pair of limiting plates 7 sliding on the outside of the flattening rollers 4 can be changed to adapt to flattening and winding of films of different widths. At the same time, the groove 8 located between the pair of openings ensures that the sides of the film placed inside the groove 8 remain unchanged when wound by the traction assembly.

[0028] Combination Figure 1 , Figure 2 and Figure 3 A support frame 9 is fixed between a pair of support plates 1. A fixing plate 3 is fixed to the side of the support frame 9. An arc-shaped plate 10 is fixed to the top of the support frame 9. A blower box 5 is located between a pair of arc-shaped plates 10. A flow hole 11 is opened at the top of the blower box 5, and an air outlet 12 is fixed to the bottom of the blower box 5. The air outlet 12 is set in a conical shape. Connecting columns 13 are fixed to the two outer sides of the blower box 5. A pair of connecting columns 13 are rotatably connected to the inner sides of a pair of arc-shaped plates 10. A servo motor 14 coaxial with the connecting column 13 is fixed to the outer side of one of the arc-shaped plates 10. When the blower 6 is working, air is drawn in through the flow hole 11 at the top of the blower box 5 and blown out through the conical air outlet 12 at the bottom of the blower box 5. This ensures the uniformity of the blown air and better flattens the film. On the other hand, it allows the air blown by the blower 6 to diffuse as much as possible to the two arc-shaped surfaces in different directions, thereby improving the flattening efficiency and quality.

[0029] The implementation principle of the polyimide film production flattening device in this application embodiment is as follows: Before operation, the film is first flattened and passed through the middle of a pair of flattening rollers 4 located between fixed plates 3. Then, a pair of limiting plates 7 located outside the pair of flattening rollers 4 are slidably adjusted to a consistent width for the film. At this time, the film is passed through the groove 8 opened in the limiting plate 7 at one end of the worktable 2, through the top of the outwardly convex worktable 2, and finally out through the groove 8 of the other pair of limiting plates 7. It is then wound up by the traction component. At this time, multiple blowers 6 inside the blower box 5 located between a pair of arc plates 9 are turned on simultaneously. When the blower 6 is working, air is drawn in from the flow hole 11 opened in the top of the blower box 5 and blown out from the cone-shaped air outlet 12 at the bottom of the blower box 5 to flatten the film located on the arc worktable 2. If it is necessary to adjust the angle of the air outlet 12, the servo motor 14 is turned on to drive a pair of connecting columns 13 on both sides of the blower box 5 to rotate synchronously between a pair of arc plates 10 to complete the angle adjustment of the air outlet 12.

[0030] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A polyimide film production leveling apparatus, comprising support plates (1), wherein a plurality of support plates (1) are fixedly connected to a worktable (2) at their top ends, characterized in that, Both sides of the worktable (2) are fixed with fixing plates (3), and a pair of flattening rollers (4) for flattening the film are rotatably arranged between the pair of fixing plates (3). A limiting component for limiting the film is connected to the outside of the pair of flattening rollers (4). The upper end of the workbench (2) is provided with a rotatable blower box (5), and multiple blowers (6) are installed inside the blower box (5).

2. The polyimide film production leveling apparatus as described in claim 1, characterized in that, The limiting assembly includes a pair of limiting plates (7); the limiting plates (7) have openings for the rotation of a pair of flattening rollers (4), and a groove (8) for placing a film is provided in the middle of the pair of openings.

3. The polyimide film production leveling apparatus as described in claim 1, characterized in that, A support frame (9) is fixed between a pair of support plates (1), a fixing plate (3) is fixed to the side of the support frame (9), an arc plate (10) is fixed to the top of the support frame (9), and the blower box (5) is located between a pair of arc plates (10).

4. The polyimide film production leveling apparatus as described in claim 3, characterized in that, The top of the blower box (5) is provided with a flow hole (11), and the bottom of the blower box (5) is fixed with an air outlet (12), and the air outlet (12) is set in a cone shape.

5. The polyimide film production leveling apparatus as described in claim 4, characterized in that, The blower box (5) has connecting columns (13) fixed on both outer sides. A pair of connecting columns (13) are rotatably connected to the inner sides of a pair of arc plates (10). A servo motor (14) coaxial with the connecting column (13) is fixed on the outer side of one of the arc plates (10).

6. The polyimide film production leveling apparatus as described in claim 1, characterized in that, The workbench surface (2) is an outwardly convex arc shape.

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