Polyimide film winding tension adjusting structure

Abstract

The utility model discloses a polyimide film winding tension adjusting structure, which belongs to the technical field of polyimide films and comprises a bottom plate, a tension roller and an adjusting component. The tensioning roller is connected with the bottom plate through an adjusting assembly. The adjusting assembly comprises a supporting plate, an adjusting groove, an adjusting plate, a limiting groove, a servo motor, a rotating disc, an eccentric rod and a fixing block. The at least two supporting plates are symmetrically and fixedly arranged on one side of the bottom plate; adjusting grooves are formed in the opposite faces of the two supporting plates. The adjusting plate is arranged between the two supporting plates; a limiting groove is formed in the adjusting plate; the servo motor is fixedly arranged on the two supporting plates through a motor base. The rotating disc is sleeved on an output shaft of the servo motor; the eccentric rod is eccentrically and fixedly arranged on the side, away from the servo motor, of the rotating disc. According to the polyimide film winding tension adjusting structure, the polyimide film winding tension can be automatically adjusted, and the working efficiency is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of polyimide films, in particular to a polyimide film winding tension regulating structure. Background Art

[0002] Polyimide refers to a class of polymers containing an imide ring (-CO-NR-CO-) on the main chain. It is one of the organic polymer materials with the best comprehensive performance. It is resistant to high temperatures of over 400°C and has a long-term use temperature range of -200 to 300°C. Some of them have no obvious melting point and have high insulation performance. The dielectric constant is 4.0 at 103 Hz and the dielectric loss is only 0.004 to 0.007, which belongs to F to H grade insulation. According to the chemical structure of the repeating unit, polyimide can be divided into three types: aliphatic, semi-aromatic and aromatic polyimide. According to the interchain interaction force, it can be divided into cross-linked and non-cross-linked types.

[0003] After the production of polyimide film is completed, it needs to be rolled up. During the rolling process, in order to avoid wrinkles, looseness and other phenomena on the polyimide film, the winding tension of the polyimide film needs to be adjusted. However, in the prior art, the polyimide film winding tension adjustment structure is mostly adjusted manually, which not only increases the workload of the staff, but also reduces work efficiency. Utility Model Content

[0004] The utility model aims to provide a polyimide film winding tension adjustment structure to solve the problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a polyimide film winding tension adjustment structure, comprising a base plate, a tensioning roller and an adjusting component; the tensioning roller is connected to the base plate through an adjusting component; wherein the adjusting component comprises a support plate, an adjusting slot, an adjusting plate, a limiting slot, a servo motor, a rotating disk, an eccentric rod and a fixed block; at least two of the support plates are symmetrically fixed on one side of the base plate; adjustment slots are provided on opposite surfaces of the two support plates; the adjusting plate is arranged between the two support plates; a limiting slot is provided on the adjusting plate; the servo motor is fixed on the two support plates through a motor seat; the rotating disk is sleeved on the output shaft of the servo motor; the eccentric rod is eccentrically fixed on the side of the rotating disk away from the servo motor, and the eccentric rod extends to the outside through the limiting slot; the fixed block is fixed on the adjusting plate, and the roller shaft of the tensioning roller is rotatably connected to the fixed block.

[0006] As a preferred embodiment, the adjustment plate is slidably matched with the adjustment slot.

[0007] As a preferred embodiment, the eccentric rod is limited to slide in a limiting groove.

[0008] As a preferred embodiment, the adjustment assembly further includes reinforcing ribs; a plurality of the reinforcing ribs are fixedly arranged on the eccentric rod in a ring array, and a plurality of the reinforcing ribs are fixed on the rotating disk.

[0009] As a preferred embodiment, the adjustment assembly further includes a spring; one end of the spring is fixedly connected to the inner wall of the adjustment groove, and the other end of the spring is fixedly connected to the adjustment plate.

[0010] As a preferred embodiment, it also includes a wedge-shaped groove; a plurality of the wedge-shaped grooves are evenly opened on the adjustment plate.

[0011] As a preferred embodiment, the wedge-shaped groove is in an arc-shaped structure, and the opening direction of the wedge-shaped groove is arranged outward.

[0012] Compared with the prior art, the technical effects and advantages of the utility model are as follows:

[0013] When the polyimide film winding tension adjustment structure is used, first, the polyimide film to be wound is brought into contact with the roller surface of the tensioning roller, and one end of the polyimide film is fixed on the winding roller, and then the servo motor is started to rotate the output shaft of the servo motor, the rotating disk is rotated, the eccentric rod is eccentrically rotated on the rotating disk, the eccentric rod is squeezed by the inner wall of the limiting groove, the eccentric rod is slid in the limiting groove, the adjustment plate is slid upward in the adjustment groove, the fixed block is moved upward, and the tensioning roller is moved upward until the polyimide film is in a straightened state. At this time, the servo motor is controlled so that the output shaft of the servo motor no longer rotates. Then, the polyimide film can be wound by the winding roller. The utility model can adjust the winding tension of the polyimide film in an automated manner, which not only reduces labor intensity but also greatly improves work efficiency.

[0014] The polyimide film winding tension adjustment structure is provided with a wedge-shaped groove, which is arranged into an arc-shaped structure, and the opening direction of the wedge-shaped groove is arranged outward to reduce the contact area between the adjustment plate and the adjustment groove, thereby reducing the friction between the adjustment plate and the adjustment groove, so that the adjustment plate can slide in the adjustment groove more conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a cross-sectional view of the overall structure of the utility model;

[0018] Figure 3 It is a schematic diagram of another state of the overall structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the adjustment plate of the utility model.

[0020] Description of reference numerals:

[0021] In the figure:

[0022] 1. Bottom plate; 2. Tension roller; 3. Adjustment assembly; 4. Wedge groove;

[0023] 301, support plate; 302, adjustment slot; 303, adjustment plate; 304, limit slot; 305, servo motor; 306, rotating disk; 307, eccentric rod; 308, fixed block; 309, reinforcing rib; 310, spring. DETAILED DESCRIPTION

[0024] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.

[0025] Unless otherwise defined, the directions of up, down, left, right, front, back, inside and outside involved in this document are based on the directions of up, down, left, right, front, back, inside and outside in the figures shown in the present utility model, and are explained here together.

[0026] The connection method can be bonding, welding, bolt connection and other existing methods, depending on actual needs.

[0027] See also Figures 1 to 4 As shown, this embodiment includes a base plate 1, a tensioning roller 2 and an adjusting assembly 3; the tensioning roller 2 is connected to the base plate 1 through the adjusting assembly 3;

[0028] The adjusting assembly 3 includes a supporting plate 301, an adjusting slot 302, an adjusting plate 303, a limiting slot 304, a servo motor 305, a rotating disk 306, an eccentric rod 307 and a fixing block 308; four supporting plates 301 are symmetrically fixed on one side of the bottom plate 1; the adjusting slots 302 are provided on the opposite surfaces of two supporting plates 301 with a close distance; the adjusting plate 303 is arranged between the two supporting plates 301 with a close distance, and the adjusting plate 303 is slidably matched with the adjusting slot 302; the adjusting plate 303 is provided with a plurality of adjusting slots 302, and ... A limiting slot 304 is provided; the servo motor 305 is fixed on the two support plates 301 through a motor seat; the rotating disk 306 is sleeved on the output shaft of the servo motor 305; the eccentric rod 307 is eccentrically fixed on the side of the rotating disk 306 away from the servo motor 305, and the eccentric rod 307 extends to the outside through the limiting slot 304; wherein the eccentric rod 307 is limited to slide in the limiting slot 304; the fixed block 308 is fixed on the adjusting plate 303, and the roller shaft of the tensioning roller 2 is rotatably connected to the fixed block 308.

[0029] When the utility model is in use, first, the polyimide film to be rolled up is brought into contact with the roller surface of the tensioning roller 2, and one end of the polyimide film is fixed on the winding roller, and then, the servo motor 305 is started to rotate the output shaft of the servo motor 305, so that the rotating disk 306 rotates, and the eccentric rod 307 rotates eccentrically on the rotating disk 306, so that the eccentric rod 307 squeezes the inner wall of the limiting groove 304, and the eccentric rod 307 slides in the limiting groove 304, so that the adjustment plate 303 slides upward in the adjustment groove 302, and the fixing block 308 moves upward, and the tensioning roller 2 moves upward until the polyimide film is in a straightened state. At this time, the servo motor 305 is controlled so that the output shaft of the servo motor 305 no longer rotates. Then, the polyimide film can be rolled up by the winding roller. The utility model can adjust the winding tension of the polyimide film in an automated manner, which not only reduces the labor intensity but also greatly improves the work efficiency.

[0030] As a preferred embodiment, the adjustment assembly 3 further includes reinforcing ribs 309; six reinforcing ribs 309 are fixedly arranged on the eccentric rod 307 in a circular array, and several reinforcing ribs 309 are fixed on the rotating disk 306. The utility model provides reinforcing ribs 309 to improve the connection strength between the eccentric rod 307 and the rotating disk 306, so that the eccentric rod 307 can withstand greater gravity.

[0031] As a preferred embodiment, the adjustment component 3 further includes a spring 310; one end of the spring 310 is fixedly connected to the inner wall of the adjustment slot 302, and the other end is fixedly connected to the adjustment plate 303. By providing the spring 310, the utility model can reduce the gravity that the servo motor 305 needs to bear through the elasticity of the spring 310, thereby increasing the service life of the servo motor 305.

[0032] As a preferred embodiment, it also includes a wedge-shaped groove 4; a plurality of wedge-shaped grooves 4 are evenly arranged on the adjustment plate 303; wherein the wedge-shaped groove 4 is an arc-shaped structure, and the opening direction of the wedge-shaped groove 4 is set outward; when the eccentric rod 307 is at the lower end of the rotating disk 306, the spring 310 is in a state of contraction under force. The utility model sets the wedge-shaped groove 4 to an arc-shaped structure, and sets the opening direction of the wedge-shaped groove 4 outward to reduce the contact area between the adjustment plate 303 and the adjustment groove 302, thereby reducing the friction between the adjustment plate 303 and the adjustment groove 302, so that the adjustment plate 303 can slide in the adjustment groove 302 more conveniently.

[0033] The servo motor 305 is a conventional instrument, and its working principle, size and model are irrelevant to the problem solved by the present application, so no further description is given. The control method of the present invention is controlled by a controller, and the control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field, and the present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0034] How it works

[0035] When the polyimide film winding tension adjustment structure is used, first, the polyimide film to be wound is brought into contact with the roller surface of the tension roller 2, and one end of the polyimide film is fixed on the winding roller. Then, the servo motor 305 is started to rotate the output shaft of the servo motor 305, so that the rotating disk 306 rotates, and the eccentric rod 307 rotates eccentrically on the rotating disk 306, so that the eccentric rod 307 squeezes the inner wall of the limiting groove 304, so that the eccentric rod 307 slides in the limiting groove 304, and the adjustment plate 303 slides upward in the adjustment groove 302, so that the spring 310 is stretched by force. Due to the action of the wedge-shaped groove 4, the contact area between the adjustment plate 303 and the inner wall of the adjustment groove 302 is reduced, thereby reducing the friction between the adjustment plate 303 and the adjustment groove 302, making it easier for the adjustment plate 303 to slide in the adjustment groove 302, and when the adjustment plate 303 slides upward in the adjustment groove 302, the fixed block 308 moves upward, causing the tensioning roller 2 to move upward until the polyimide film is in a straightened state. At this time, the servo motor 305 is controlled so that the output shaft of the servo motor 305 no longer rotates, and then the polyimide film can be wound up by the winding roller.

[0036] It should be noted that, in this article, relational terms such as one and two are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A polyimide film winding tension adjustment structure, characterized in that: include: Bottom plate (1); A tensioning roller (2) connected to the base plate (1) via an adjustment assembly (3); The adjustment assembly (3) comprises a support plate (301), an adjustment slot (302), an adjustment plate (303), a limit slot (304), a servo motor (305), a rotating disk (306), an eccentric rod (307) and a fixing block (308); at least two of the support plates (301) are symmetrically fixed on one side of the bottom plate (1); the adjustment slots (302) are provided on opposite surfaces of the two support plates (301); the adjustment plate (303) is provided between the two support plates (301); and a limit slot (304) is provided on the adjustment plate (303). The servo motor (305) is fixed on the two support plates (301) via a motor seat; the rotating disk (306) is sleeved on the output shaft of the servo motor (305); the eccentric rod (307) is eccentrically fixed on a side of the rotating disk (306) away from the servo motor (305), and the eccentric rod (307) passes through the limiting slot (304) and extends to the outside; the fixing block (308) is fixed on the adjusting plate (303), and the roller shaft of the tensioning roller (2) is rotatably connected to the fixing block (308).

2. A polyimide film winding tension adjustment structure according to claim 1, characterized in that: The adjustment plate (303) is slidably matched with the adjustment slot (302).

3. A polyimide film winding tension adjustment structure according to claim 2, characterized in that: The eccentric rod (307) is limited to slide in the limiting groove (304).

4. A polyimide film winding tension adjustment structure according to claim 3, characterized in that: The regulating component (3) further comprises: A plurality of reinforcing ribs (309) are fixedly arranged on the eccentric rod (307) in a ring array, and a plurality of the reinforcing ribs (309) are fixed on the rotating disk (306).

5. A polyimide film winding tension adjustment structure according to claim 4, characterized in that: The regulating component (3) further comprises: The spring (310) has one end fixedly connected to the inner wall of the adjustment groove (302) and the other end fixedly connected to the adjustment plate (303).

6. A polyimide film winding tension adjustment structure according to claim 5, characterized in that: Also includes: A plurality of wedge-shaped grooves (4) are evenly arranged on the adjustment plate (303).

7. A polyimide film winding tension adjustment structure according to claim 6, characterized in that: The wedge-shaped groove (4) has an arc-shaped structure, and the opening direction of the wedge-shaped groove (4) is arranged outwards.

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