Cooling and coiling device for polyimide film production

By designing the combined use of a cooling pool and a drying unit, the problem of residual moisture during the film cooling process was solved, rapid cooling and drying were achieved, and film quality and production efficiency were improved.

CN223421988UActive Publication Date: 2025-10-10CHANGSHU HUAQIANG INSULATION MATERIALS CO LTD
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Patent Information

Application Number
CN202422736766.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-11
Publication Date
2025-10-10
Estimated Expiration
2034-11-11

AI Technical Summary

Technical Problem

In the prior art, residual moisture in the polyimide film during cooling affects the film quality, and the air cooling efficiency is low, making it difficult to dry quickly.

Method used

A device including a cooling pool, a drying unit and a winding unit was designed. The coolant in the cooling pool was used to soak the film for rapid cooling, and rapid drying was achieved through an air compressor and an air outlet pipe. The sponge was used to absorb and the guide plate to guide moisture to prevent residue.

Benefits of technology

The film is quickly cooled and dried, moisture residue is avoided, and the film's quality and production efficiency are improved.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a cooling and coiling device for polyimide film production, which relates to the technical field of polyimide film processing and comprises a bottom plate, a cooling unit, a drying unit and a coiling unit. A cooling unit is mounted at the upper end of the bottom plate; the cooling unit comprises a cooling pond, first mounting plates, first rotating wheels, second rotating wheels and a flow guide plate, the upper end of the bottom plate is fixedly connected with the cooling pond, the inner side of the cooling pond is rotatably connected with the second rotating wheels, the upper end of the cooling pond is fixedly connected with four first mounting plates, and the first rotating wheels are rotatably connected between every two first mounting plates; according to the cooling and coiling device for polyimide film production, a film can be rapidly cooled, and the film can be rapidly dried to prevent water from remaining.
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Description

Technical Field

[0001] The utility model relates to the technical field of polyimide film processing, in particular to a cooling and winding device for polyimide film production. Background Art

[0002] Polyimide film is a heterocyclic polymer material characterized by an imide ring structure. It is a type of insulating material with excellent comprehensive properties. It is used for slot insulation in motors and cable wrapping materials, cover films for flexible circuit boards, and copper-clad substrates. Transparent polyimide film can be used as a flexible solar cell substrate. Polyimide fiber can be used for hot gas filtration. As an engineering plastic, polyimide has a wide range of applications.

[0003] In the prior art, air cooling is used only to cool the film quickly. The residual moisture after water cooling will affect the use and quality of the film. Therefore, we propose a cooling and winding device for polyimide film production. Utility Model Content

[0004] The technical problem to be solved by the present invention is to overcome the existing defects and provide a cooling and winding device for polyimide film production, which can quickly cool the film and quickly dry the film to prevent moisture residue, and can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: A cooling and winding device for polyimide film production, comprising a bottom plate, a cooling unit, a drying unit and a winding unit;

[0006] Bottom plate: A cooling unit is installed on the upper end;

[0007] Cooling unit: includes a cooling pool, a mounting plate 1, a rotating wheel 1, a rotating wheel 2 and a guide plate. The upper end of the bottom plate is fixedly connected to the cooling pool, the inner side of the cooling pool is rotatably connected to the rotating wheel 2, the upper end of the cooling pool is fixedly connected to four mounting plates 1, the rotating wheel 1 is rotatably connected between two mounting plates 1, and the upper rear side of the cooling pool is fixedly connected to the guide plate;

[0008] Drying unit: installed on the bottom plate;

[0009] Winding unit: installed on the bottom plate.

[0010] The cooling liquid is stored in the cooling pool, the rotating wheel 1 is controlled by the mounting plate pair, the rotating wheel 2 is limited by the cooling pool, and the film is immersed in the cooling liquid in the cooling pool to be cooled.

[0011] Furthermore, the drying unit includes a second mounting plate, a mounting frame, and a limiting slot. Two second mounting plates are fixedly connected to the middle portion of the upper end of the bottom plate. The upper end of the second mounting plate is fixedly connected to the mounting frame. Two limiting slots are defined at the upper and lower ends of the mounting frame. The second mounting plate limits the mounting frame, and the limiting slots simultaneously limit and secure the sponge that removes moisture from the film surface.

[0012] Furthermore, the drying unit further includes a limit plate, a sponge, threaded holes, and fixing bolts. The sponge is fixedly connected to the lower end of the limit plate, and the limit plate is slidably connected to the limit slot. Four threaded holes are formed on the left and right ends of the mounting frame, and the fixing bolts are fixedly connected to the limit slot. The limit plate is fixed by the fixing bolts and threaded holes. The sponge absorbs water from the surface of the film, and the guide plate guides excess water back into the cooling pool.

[0013] Furthermore, the drying unit further includes a mounting plate 3, an air outlet pipe, an air supply pipe, and an air compressor. Two mounting plates 3 are fixedly connected to the upper end of the base plate, two air outlet pipes are fixedly connected between the two mounting plates 3, an air compressor is fixedly connected to the upper end of the base plate, the air outlet of the air compressor is fixedly connected to one end of the air supply pipe, and the other two ends of the air supply pipe are fixedly connected to the two air outlet pipes. The air compressor delivers cold air to the air outlet pipe through mounting plate 2, drying both sides of the film through the air outlet pipe, and the air outlet pipe is fixed by mounting plate 3.

[0014] Furthermore, the winding unit further includes a fixed plate 1, a winding wheel 1, a motor 1, a fixed plate 2, a winding wheel 2, and a motor 2. Two fixed plates 1 are fixedly connected to the top of the upper front end of the base plate. A winding wheel 1 is rotatably connected between the two fixed plates 1. The right end of the fixed plate 1 is fixedly connected to the motor 1. The output shaft of the motor 1 is fixedly connected to the winding wheel 1. Two fixed plates 2 are fixedly connected to the top of the upper rear end of the base plate. A winding wheel 2 is rotatably connected between the two fixed plates 2. The right end of the fixed plate 2 is fixedly connected to the motor 2. The output shaft of the motor 2 is fixedly connected to the winding wheel 2. The winding wheel 1 and the winding wheel 2 are limited by the fixed plate 1 and the fixed plate 2 respectively. The rotation direction and speed of the winding wheel 1 and the winding wheel 2 are controlled by the motor 1 and the motor 2 respectively, so as to ensure that the film can be wound within a normal tension range.

[0015] Furthermore, the device further includes a polyimide film, one end of which is wound around a first reel, which passes through the upper end of a first rotating wheel and the lower end of a second rotating wheel, and the other end of the polyimide film is wound around a second reel. The polyimide film is cooled in a cooling pool and air-dried through an air outlet pipe.

[0016] Compared with the prior art, the beneficial effects of the present invention are: the cooling and winding device for polyimide film production has the following advantages:

[0017] 1. This cooling and winding device for polyimide film production stores coolant in a cooling pool, controls rotating wheel one through a pair of mounting plates, and limits rotating wheel two through the cooling pool. When the film is immersed in the coolant in the cooling pool, it is cooled, and the film can be cooled quickly.

[0018] 2. This cooling and winding device for polyimide film production uses an air compressor to deliver cold air to the air outlet pipe through the second mounting plate, and dries both sides of the film through the air outlet pipe. The air outlet pipe is fixed by the third mounting plate, which can quickly dry the film and prevent moisture residue. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the left side structure of the utility model;

[0021] Figure 3 For this utility model Figure 2 Schematic diagram of the locally enlarged structure at point A in the middle.

[0022] In the figure: 1 bottom plate, 2 polyimide film, 3 cooling unit, 31 cooling pool, 32 mounting plate 1, 33 rotating wheel 1, 34 rotating wheel 2, 35 guide plate, 4 drying unit, 41 mounting plate 2, 42 mounting frame, 43 limiting groove, 44 limiting plate, 45 sponge, 46 threaded hole, 47 fixing bolt, 48 mounting plate 3, 49 air outlet pipe, 410 air supply pipe, 411 air compressor, 5 winding unit, 51 fixing plate 1, 52 winding wheel 1, 53 motor 1, 54 fixing plate 2, 55 winding wheel 2, 56 motor 2. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1-3 , this embodiment provides a technical solution: a cooling and winding device for polyimide film production, comprising a bottom plate 1, a cooling unit 3, a drying unit 4 and a winding unit 5;

[0025] The bottom plate 1 is provided with a cooling unit 3 at the upper end;

[0026] The cooling unit 3 comprises a cooling pool 31, a mounting plate 32, a rotating wheel 33, a rotating wheel 34 and a guide plate 35. The cooling pool 31 is fixedly connected to the upper end of the bottom plate 1. The rotating wheel 34 is rotatably connected to the inner side of the cooling pool 31. Four mounting plates 32 are fixedly connected to the upper end of the cooling pool 31. The rotating wheel 33 is rotatably connected between two mounting plates 32. The guide plate 35 is fixedly connected to the upper end of the cooling pool 31 at the rear side. The cooling liquid is stored in the cooling pool 31. The rotating wheel 33 is controlled by the mounting plate 32. The rotating wheel 34 is limited by the cooling pool 31. The film is soaked in the cooling liquid in the cooling pool 31 to be cooled.

[0027] The drying unit 4 is mounted on the bottom plate 1. The drying unit 4 comprises a mounting plate 41, a mounting frame 42 and a limiting groove 43. Two mounting plates 41 are fixedly connected to the upper end of the bottom plate 1 at the middle. The mounting frame 42 is fixedly connected to the upper end of the mounting plate 41. Two limiting grooves 43 are formed at the upper and lower ends of the mounting frame 42. The mounting plate 41 limits the mounting frame 42. The limiting groove 43 limits and fixes the sponge for removing the water on the surface of the film.

[0028] The drying unit 4 further comprises a limiting plate 44, a sponge 45, a threaded hole 46 and a fixing bolt 47. The sponge 45 is fixedly connected to the lower end of the limiting plate 44. The limiting plate 44 is slidably connected to the limiting groove 43. Four threaded holes 46 are formed at the left and right ends of the mounting frame 42. The fixing bolt 47 fixedly connects the limiting plate 44 and the limiting groove 43. The limiting plate 44 is fixed by the fixing bolt 47 and the threaded hole 46. The water on the surface of the film is absorbed by the sponge 45. The excess water is guided by the guide plate 35 to flow into the cooling pool 31 again.

[0029] The drying unit 4 further comprises a mounting plate 48, an air outlet pipe 49, an air conveying pipe 410 and an air compressor 411. The drying unit 4 further comprises a mounting plate 48, an air outlet pipe 49, an air conveying pipe 410 and an air compressor 411. Two mounting plates 48 are fixedly connected to the upper end of the bottom plate 1. Two air outlet pipes 49 are fixedly connected between the two mounting plates 48. The air compressor 411 is fixedly connected to the upper end of the bottom plate 1. The air outlet of the air compressor 411 is fixedly connected to one end of the air conveying pipe 410. The other two ends of the air conveying pipe 410 are fixedly connected to the two air outlet pipes 49, respectively. The cold air is conveyed by the air compressor 411 to the air outlet pipe 49 through the mounting plate 41. The two surfaces of the film are dried by the air outlet pipe 49. The air outlet pipe 49 is fixed by the mounting plate 48.

[0030] Winding unit 5: installed on the base plate 1, the winding unit 5 also includes a fixed plate 1 51, a winding wheel 1 52, a motor 1 53, a fixed plate 2 54, a winding wheel 2 55 and a motor 2 56. The top front end of the upper end of the base plate 1 is fixedly connected to two fixed plates 1 51, and the winding wheel 1 52 is rotatably connected between the two fixed plates 1 51. The right end of the fixed plate 1 51 is fixedly connected to the motor 1 53, and the output shaft of the motor 1 53 is fixedly connected to the winding wheel 1 52. The top rear end of the upper end of the base plate 1 is fixedly connected to two fixed plates 2 54, and the winding wheel 2 55 is rotatably connected between the two fixed plates 2 54. The right end of the fixed plate 2 54 is fixedly connected to the motor 2 56, and the output shaft of the motor 2 56 is fixedly connected to the winding wheel 2 55. The winding wheel 1 52 and the winding wheel 2 55 are limited by the fixed plate 1 51 and the fixed plate 2 54 respectively, and the rotation direction and speed of the winding wheel 1 52 and the winding wheel 2 55 are controlled by the motor 1 53 and the motor 2 56 respectively, so as to ensure that the film can be wound within the normal tension range.

[0031] The polyimide film 2 also includes a polyimide film 2. One end of the polyimide film 2 is wound around a take-up wheel 52, which passes through the upper end of a rotating wheel 33 and the lower end of a rotating wheel 2 34. The other end of the polyimide film 2 is wound around a take-up wheel 55. The polyimide film 2 is cooled in a cooling pool 31 and air-dried through an air outlet duct 49.

[0032] The working principle of the cooling and winding device for polyimide film production provided by the present invention is as follows: coolant is stored in a cooling pool 31, rotating wheel 1 33 is controlled by mounting plate 1 32, rotating wheel 2 34 is limited by cooling pool 31, and the film is immersed in the coolant in cooling pool 31 and cooled. Mounting frame 42 is limited by mounting plate 2 41, and the sponge for removing moisture from the surface of the film is limited and fixed by limiting groove 43. Limiting plate 44 is fixed by fixing bolts 47 and threaded holes 46, water on the surface of the film is absorbed by sponge 45, and excess moisture is guided by guide plate 35 to flow back into cooling pool 31. Cold air is delivered to outlet pipe 49 through mounting plate 2 41 by air compressor 411, and both sides of the film are dried by outlet pipe 49. Outlet pipe 49 is fixed by mounting plate 3 48. Reel 1 52 and reel 2 55 are positioned by fixed plate 1 51 and fixed plate 2 54, respectively. Motor 1 53 and motor 2 56 control the rotational direction and speed of reel 1 52 and reel 2 55, respectively, ensuring that the film can be reeled within the normal tension range. The polyimide film 2 is cooled in the cooling pool 31 and then air-dried through the air outlet duct 49.

[0033] It is worth noting that the input ends of motor 1 53 and motor 2 56 disclosed in the above embodiments are electrically connected to the output end of the external power supply through an external PLC controller. Motor 1 53 and motor 2 56 both adopt servo motors, and the external PLC controller controls the operation of motor 1 53 and motor 2 56 using methods commonly used in the prior art.

[0034] The above are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A cooling and winding device for producing polyimide film, characterized in that: It comprises a bottom plate (1), a cooling unit (3), a drying unit (4) and a winding unit (5); Bottom plate (1): a cooling unit (3) is installed on the upper end; The cooling unit (3) comprises a cooling pool (31), a mounting plate (32), a rotating wheel (33), a rotating wheel (34) and a guide plate (35), wherein the upper end of the bottom plate (1) is fixedly connected to the cooling pool (31), the inner side of the cooling pool (31) is rotatably connected to the rotating wheel (34), the upper end of the cooling pool (31) is fixedly connected to four mounting plates (32), a rotating wheel (33) is rotatably connected between two mounting plates (32), and the rear side of the upper end of the cooling pool (31) is fixedly connected to the guide plate (35); Drying unit (4): mounted on the bottom plate (1); Rewinding unit (5): mounted on the bottom plate (1).

2. A cooling and winding device for producing polyimide film according to claim 1, characterized in that: The drying unit (4) comprises a second mounting plate (41), a mounting frame (42) and a limiting groove (43); the middle portion of the upper end of the bottom plate (1) is fixedly connected to two second mounting plates (41); the upper end of the second mounting plate (41) is fixedly connected to the mounting frame (42); and the upper and lower ends of the mounting frame (42) are provided with two limiting grooves (43).

3. The cooling and winding device for producing polyimide film according to claim 1, characterized in that: The drying unit (4) further comprises a limiting plate (44), a sponge (45), a threaded hole (46) and a fixing bolt (47); the lower end of the limiting plate (44) is fixedly connected to the sponge (45); the limiting plate (44) is slidably connected to the limiting groove (43); four threaded holes (46) are provided at the left and right ends of the mounting frame (42); and the fixing bolt (47) is fixedly connected to the limiting plate (44) and the limiting groove (43).

4. The cooling and winding device for producing polyimide film according to claim 1, characterized in that: The drying unit (4) further comprises a mounting plate three (48), an air outlet pipe (49), an air supply pipe (410) and an air compressor (411); the upper end of the base plate (1) is fixedly connected to two mounting plates three (48); two air outlet pipes (49) are fixedly connected between the two mounting plates three (48); the upper end of the base plate (1) is fixedly connected to an air compressor (411); the air outlet of the air compressor (411) is fixedly connected to one end of the air supply pipe (410); and the other two ends of the air supply pipe (410) are fixedly connected to the two air outlet pipes (49) respectively.

5. The cooling and winding device for producing polyimide film according to claim 1, characterized in that: The winding unit (5) further comprises a fixed plate (51), a winding wheel (52), a motor (53), a fixed plate (54), a winding wheel (55) and a motor (56). The top front end of the upper end of the bottom plate (1) is fixedly connected to two fixed plates (51), and the winding wheel (52) is rotatably connected between the two fixed plates (51). The right end of the fixed plate (51) is fixedly connected to the motor (53), and the output shaft of the motor (53) is fixedly connected to the winding wheel (52). The top rear end of the upper end of the bottom plate (1) is fixedly connected to two fixed plates (54), and the winding wheel (55) is rotatably connected between the two fixed plates (54). The right end of the fixed plate (54) is fixedly connected to the motor (56), and the output shaft of the motor (56) is fixedly connected to the winding wheel (55).

6. A cooling and winding device for producing polyimide film according to claim 5, characterized in that: It also includes a polyimide film (2), one end of which is wound on a winding wheel (52), the winding wheel (52) passes through the upper end of the rotating wheel (33) and the lower end of the rotating wheel (34), and the other end of the polyimide film (2) is wound on a winding wheel (55).