Biaxial stretching machine for polyimide film

Abstract

The utility model relates to the technical field of polyimide film stretching machines, in particular to a polyimide film two-way stretching machine which comprises a machine body, two sets of electric sliding rails are assembled on the surfaces of the two side ends of the periphery of the machine body, and two sets of sliding tables used for supporting are assembled at the sliding ends of the electric sliding rails. A U-shaped frame used for supporting is rotationally installed between the two sliding tables. In the using process of the stretching machine for the polyimide film, the two sides of the polyimide film can be conveniently arranged between the two sets of clamping plates correspondingly, so that the two sets of clamping plates of the sliding holes in the support can automatically clamp the film, and when the film pulls the two sets of clamping plates, the film can be conveniently clamped by the two sets of clamping plates. The two sets of clamping plates relatively slide in the sliding holes under the action of pulling force, and the clamping force is gradually increased, so that the thin film can be stretched more stably, meanwhile, after stretching is completed, the clamping plates and the thin film can be conveniently separated from each other, and the thin film can be conveniently and continuously stretched in the follow-up process.

Description

TECHNICAL FIELD

[0001] The utility model relates to polyimide film stretching machine technical field, concretely relates to a kind of polyimide film bidirectional stretching machine. BACKGROUND

[0002] Polyimide film is the best film class insulating material in the world, by p-phenyleneterephthalamic diacid and diamine base diphenyl ether in strong polarity solvent through condensation polymerization and cast film again through imidization;Patent No. CN201922153689.2 discloses a kind of polyimide film bidirectional stretching machine, drive motor is arranged in heating furnace outside, make that combination formula needle band runs to heating furnace outside and carries out cooling, avoid the drawback that bearing cannot long-term run in high temperature environment;But in the process of using polyimide film bidirectional stretching machine, polyimide film is fixed on both sides using needle band, which leads to polyimide film stretching and removal quite cumbersome.Therefore, we propose a kind of polyimide film bidirectional stretching machine. UTILITY MODEL CONTENTS

[0003] In view of the problems in the prior art, the utility model provides a kind of polyimide film bidirectional stretching machine.

[0004] The utility model solves the technical scheme that it adopts to a kind of polyimide film bidirectional stretching machine, including body, the body outer periphery both sides end surface are all equipped with electric slide rail, and electric slide rail has two groups, the electric slide rail sliding end is equipped with the slide table for supporting, and slide table has two groups, and the slide table between two groups is rotatably installed with the support for supporting U-shaped frame, and U-shaped frame inner periphery is screw-engaged with the fastening screw for limiting, and fastening screw has multiple groups;

[0005] The U-shaped frame is rotatably installed with the rotating roller for supporting on the side away from the body, and the rotating roller outer periphery is equipped with the sprocket body for transmission, and the chain body for conveying polyimide film is equipped between two groups of sprocket bodies, and the chain body outer periphery is equipped with the backing plate for supporting, and backing plate has multiple groups, and the backing plate is equipped with the support for supporting on the side away from the chain body, and the support is internally provided with slide hole, and the slide hole is slidably installed with the clamping plate for clamping polyimide film, and clamping plate has two groups.

[0006] By adopting the above technical scheme, in the process of using the stretching machine for polyimide film, the electric slide rail on the both sides of the body can be operated to drive the slide table to move, and the two slide tables on the surface of the electric slide rail can move independently and conveniently drive the U-shaped frame to move, and the U-shaped frame and the slide table are rotatably connected and can lock the angle after rotation by the fastening screw, so that the U-shaped frames on both sides of the body are distributed in an eight-shaped manner, facilitating the horizontal stretching of the polyimide film.

[0007] In the process of using the stretching machine for polyimide film, the two sides of the polyimide film can be conveniently arranged between the two sets of clamping plates, so that the two sets of clamping plates in the sliding hole can automatically clamp the film, and when the film pulls the two sets of clamping plates, the two sets of clamping plates slide in the sliding hole under the action of tension and the clamping force gradually increases, so that the film can be more stably stretched, and after stretching, the clamping plate and the film can be conveniently separated, facilitating subsequent stretching of the film.

[0008] Specifically, the clamping plate and the inner wall of the sliding hole are provided with a groove on one side, and the groove has multiple groups, and the two groups of grooves are assembled with springs for pushing the displacement of the clamping plate.

[0009] By adopting the above technical scheme, the spring is installed between the two groups of grooves and can push the clamping plate sliding in the sliding hole, so that the clamping plate can stably clamp and fix the film, and only the side edge of the film needs to be inserted between the two sets of clamping plates, and the two sets of clamping plates can automatically open and facilitate the insertion of the film, and then the spring can push the clamping plate to displace and clamp the two sides of the film, facilitating subsequent stretching.

[0010] Specifically, the inner wall surface of the sliding hole is provided with a slope, and the slope has two groups, and the outer wall surface of the clamping plate is assembled with a slope block which is slidingly connected with the slope.

[0011] By adopting the above technical scheme, the slope block on the back of the clamping plate and the slope slide relative to each other, which facilitates to improve the stability of the two sets of clamping plates when sliding in the sliding hole, so that the clamping plate can more stably clamp and fix the film.

[0012] Specifically, the two sets of clamping plates are provided with a cut groove on one side, the outer wall surface of the U-shaped frame is assembled with an ear plate for supporting, and the outer wall surface of the ear plate is assembled with a vertical plate through bolts, and the end of the vertical plate away from the ear plate is assembled with a shovel plate which is matched with the cut groove.

[0013] By adopting the above technical scheme, when the film is heated and stretched in the machine body and then removed from the machine body, the ear plate on the outer side of the U-shaped frame can support the shovel plate through the vertical plate, so that the shovel plate slides along the surface of the film and is matched with the cut groove on the side of the clamping plate, so that the clamping plate automatically opens under the matching force and releases the clamped film, so that the clamping plate can continue to clamp the film and facilitate the stretching work.

[0014] Specifically, the bottom surface of the U-shaped frame is assembled with a speed reducer which is drivingly connected with the rotating roller, and the power input end of the speed reducer is assembled with a servo motor.

[0015] By adopting the technical scheme, when the film is stretched, the servo motor at the bottom of the U-shaped frame is operated to drive the rotating roller in the U-shaped frame to rotate under the operation of the speed reducer, then the rotating roller conveniently drives the sprocket body to rotate, so that the chain body between the two sides of the machine body can be operated with the rotation of the sprocket body, the film is conveniently conveyed into the machine body, and stretching can be conveniently performed at the same time of subsequent heating.

[0016] Specifically, the two groups of clamping plates are attached with rubber pads for anti-skid on opposite sides.

[0017] By adopting the technical scheme, the rubber pad has good high-temperature resistance and anti-skid performance, so that the fastening of the clamping plate when clamping the film is improved.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] 1. The technical scheme of the application comprises an electric sliding rail, a sliding table, a U-shaped frame and a fastening screw, which are designed to operate the electric sliding rails on the two sides of the machine body to drive the sliding table to move, the two groups of sliding tables on the surface of the electric sliding rail can independently move and conveniently drive the U-shaped frame to move, the U-shaped frame and the sliding table are rotatably connected and can be locked and fixed at the rotated angle by the fastening screw, the U-shaped frames on the two sides of the machine body are distributed in an eight-shaped manner, and the polyimide film can be conveniently stretched transversely.

[0020] 2. The technical scheme of the application comprises a rotating roller, a sprocket body, a chain body, a backing plate, a support, a sliding hole and a clamping plate, which are designed to conveniently arrange the two sides of the polyimide film between the two groups of clamping plates, the two groups of clamping plates in the sliding hole in the support can automatically clamp the film, when the film pulls the two groups of clamping plates, the two groups of clamping plates slide in the sliding hole under the action of the pulling force and the clamping force gradually increases, so that the film can be more stably stretched, and the clamping plate and the film can be conveniently separated after stretching, and the film can be conveniently stretched subsequently. BRIEF DESCRIPTION OF DRAWINGS

[0021] The utility model will be further described below in combination with the drawings and examples.

[0022] Figure 1 It is the isometric view of the utility model;

[0023] Figure 2 It is the connecting structure schematic view between the chain body and the support of the utility model;

[0024] Figure 3 It is the inside structure plane schematic view of the support of the utility model;

[0025] In the figure: 1, the body; 2, electric sliding rail; 3, sliding table; 4, U-shaped frame; 5, fastening screw; 6, rotating roller; 7, chain wheel body; 8, chain body; 9, backing plate; 10, support; 11, sliding hole; 12, clamping plate; 13, groove; 14, spring; 15, inclined chute; 16, inclined block; 17, rubber pad; 18, cutting groove; 19, ear plate; 20, vertical plate; 21, shovel plate; 22, speed reducer; 23, servo motor. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0027] Please refer to Figures 1-3 The utility model discloses a kind of technical solutions provided by embodiments: a kind of polyimide film bidirectional stretching machine, including body 1, the outer periphery both sides end surface of body 1 is equipped with electric sliding rail 2, and electric sliding rail 2 has two groups, sliding end of electric sliding rail 2 is equipped with sliding table 3 for supporting, and sliding table 3 has two groups, two groups of sliding table 3 are rotatably installed with U-shaped frame 4 for supporting between, and U-shaped frame 4 inner periphery is screw-engaged with fastening screw 5 for limiting, and fastening screw 5 has multiple groups;U-shaped frame 4 is rotatably installed with rotating roller 6 for supporting on the side away from body 1, and rotating roller 6 outer periphery is equipped with chain wheel body 7 for transmission, two groups of chain wheel body 7 are equipped with chain body 8 for conveying polyimide film between, and chain body 8 outer periphery is equipped with backing plate 9 for supporting, and backing plate 9 has multiple groups, backing plate 9 is equipped with support 10 for supporting on the side away from chain body 8, and support 10 is internally provided with sliding hole 11, and sliding hole 11 is slidably installed with clamping plate 12 for clamping polyimide film, and clamping plate 12 has two groups.

[0028] When using, in the process of using the stretching machine for polyimide film, the electric sliding rail 2 of the outer periphery both sides of body 1 can be operated and sliding table 3 is moved, and the two groups of sliding table 3 on the surface of electric sliding rail 2 can be independently moved and conveniently move U-shaped frame 4, and U-shaped frame 4 and sliding table 3 are rotatably connected and can be locked and fixed by fastening screw 5 after rotation, so that the U-shaped frame 4 on both sides of body 1 is distributed in the shape of eight characters, and the polyimide film is conveniently stretched horizontally.

[0029] In the process of using the stretching machine for polyimide film, the two sides of the polyimide film can be conveniently arranged between the two sets of clamping plates 12, so that the two sets of clamping plates 12 in the sliding hole 11 inside the support 10 can automatically clamp the film, and when the film pulls the two sets of clamping plates 12, the two sets of clamping plates 12 slide in the sliding hole 11 under the action of tension and the clamping force gradually increases, so that the film can be more stably stretched, and after stretching is completed, the clamping plate 12 and the film can be conveniently separated from each other, facilitating subsequent stretching of the film.

[0030] As shown in Figure 3 The clamping plate 12 and the inner wall of the sliding hole 11 are provided with a recess 13 on one side, and the recess 13 has multiple groups, and the two groups of recesses 13 are equipped with springs 14 for pushing the displacement of the clamping plate 12.

[0031] In use, the spring 14 is installed between the two groups of recesses 13, and can push the clamping plate 12 sliding in the sliding hole 11, so that the clamping plate 12 can stably clamp and fix the film, and only the side edge of the film needs to be inserted between the two sets of clamping plates 12, the two sets of clamping plates 12 can be automatically opened and the film can be conveniently inserted, then the spring 14 can push the clamping plate 12 to displace and clamp the two sides of the film, facilitating subsequent stretching.

[0032] As shown in Figure 3 The inner wall surface of the sliding hole 11 is provided with an inclined groove 15, and the inclined groove 15 has two groups, and the outer wall surface of the clamping plate 12 is equipped with an inclined block 16 which is slidingly connected with the inclined groove 15.

[0033] In use, the inclined block 16 at the back of the clamping plate 12 slides between the inclined grooves 15, which facilitates the stability of the sliding displacement of the two sets of clamping plates 12 in the sliding hole 11, so that the clamping plate 12 can more stably clamp and fix the film.

[0034] As shown in Figure 2 The two sets of clamping plates 12 are provided with a cut groove 18 on one side, the outer wall surface of the U-shaped frame 4 is equipped with an ear plate 19 for supporting, and the outer wall surface of the ear plate 19 is equipped with a vertical plate 20 through a bolt, and the end of the vertical plate 20 away from the ear plate 19 is equipped with a shovel plate 21 which is matched with the cut groove 18.

[0035] In use, when the film is heated and stretched in the body 1 and then removed from the body 1, the ear plate 19 on the outer side of the U-shaped frame 4 can support the shovel plate 21 through the vertical plate 20, so that the shovel plate 21 slides along the surface of the film and is matched with the cut groove 18 on the side of the clamping plate 12, so that the clamping plate 12 is automatically opened under the action of the cut force and releases the clamped film, so that the clamping plate 12 can continue to clamp the film and facilitate the stretching work.

[0036] AsFigure 1 As shown in the drawings, the bottom end surface of the U-shaped frame 4 is equipped with a speed reducer 22 connected with the transmission of the rotating roller 6, and the power input end of the speed reducer 22 is equipped with a servo motor 23.

[0037] In use, when the film is stretched, the servo motor 23 at the bottom of the U-shaped frame 4 is operated to drive the rotating roller 6 in the U-shaped frame 4 to rotate under the operation of the speed reducer 22, and then the rotating roller 6 drives the sprocket body 7 to rotate, so that the chain body 8 between the two sides of the machine body 1 can operate with the rotation of the sprocket body 7, facilitating the film to be transported into the machine body 1, and facilitating the subsequent stretching while heating.

[0038] As shown in Figure 2 and Figure 3 two groups of clamping plates 12 are bonded with rubber pads 17 for anti-skid on one side.

[0039] In use, the rubber pad 17 has good high temperature resistance and anti-skid performance, which facilitates to improve the fastening of the clamping plate 12 when clamping the film.

[0040] The utility model discloses a working principle and use flow: when using, first corresponding structural component is installed on the proper position, in the process of using the drawing machine for polyimide film, first can make the electric slide rail 2 of machine body 1 periphery both sides operation and drive slide 3 to remove, and two groups of slide 3 on the surface of electric slide rail 2 can independently remove and conveniently drive the movement of U-shaped frame 4, and U-shaped frame 4 and slide 3 are mutually rotatable and can utilize fastening screw 5 to lock the angle after rotation and fix, make the U-shaped frame 4 between the both sides of machine body 1 present eight type distribution and can adjust according to the specification of film and the specification after drawing, then the both sides of film are inserted between two sets of clamping plate 12 respectively, two sets of clamping plate 12 can be automatically opened and conveniently inserted film, then spring 14 in slide hole 11 in support 10 can push clamping plate 12 displacement and clamp the both sides of film, and when film pulls two sets of clamping plate 12, two sets of clamping plate 12 slide relatively in slide hole 11 under the action of tension and make the clamping intensity gradually increase, thereby can more stably draw film, can make the servo motor 23 of U-shaped frame 4 bottom operation and drive the rotation of rotating roller 6 in U-shaped frame 4 under the operation of speed reducer 22, then rotating roller 6 conveniently drive sprocket body 7 to rotate, thereby make the chain body 8 between the both sides of machine body 1 can operate along with the rotation of sprocket body 7, conveniently convey film into machine body 1 inside, convenient for subsequent heating and stretching, and when film is removed from machine body 1 after heating and drawing in machine body 1 inside, the ear plate 19 on the outside of U-shaped frame 4 can support shovel plate 21 through vertical plate 20, make shovel plate 21 slide along the film surface and cut groove 18 on the side of clamping plate 12 mutually, thereby make clamping plate 12 automatically open under the cutting force and release the film that is clamped, make clamping plate 12 can continue to clamp film and conveniently stretch work subsequently.

[0041] The basic principle, main features and advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited by the above examples, and the above-mentioned description in the specification is only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model can have various changes and improvements, and these changes and improvements all fall within the scope of the utility model. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A biaxial stretching machine for polyimide films, characterized in that, The utility model provides a kind of polyimide film conveying device, including body (1), the outer periphery both sides end surface of the body (1) is equipped with electric slide rail (2), and electric slide rail (2) has two groups, the sliding end of electric slide rail (2) is equipped with slide table (3) for support, and slide table (3) has two groups, and the inner periphery screwing of the U-shaped frame (4) in U-shaped frame (4) is equipped with fastening screw (5) for limiting, and fastening screw (5) has multiple groups; The side of the U-shaped frame (4) away from body (1) is rotatably installed with a supporting rotating roller (6), and the outer periphery of the rotating roller (6) is equipped with a chain wheel body (7) for transmission, and the chain wheel body (7) is equipped with a chain body (8) for conveying polyimide film between the two groups, and the outer periphery of the chain body (8) is equipped with a backing plate (9) for support, and the backing plate (9) has multiple groups, and the side of the backing plate (9) away from the chain body (8) is equipped with a support (10) for support, and the support (10) is provided with a sliding hole (11) inside, and the sliding hole (11) is slidably installed with a clamping plate (12) for clamping polyimide film, and the clamping plate (12) has two groups.

2. The biaxial stretching machine for polyimide film according to claim 1, wherein The opposite side of the clamping plate (12) and the inner wall of the sliding hole (11) is provided with a groove (13), and the groove (13) has multiple groups, and the two groups of grooves (13) are equipped with a spring (14) for pushing the displacement of the clamping plate (12).

3. The biaxial stretching machine for polyimide film according to claim 1, wherein The inner wall surface of the sliding hole (11) is provided with an inclined groove (15), and the inclined groove (15) has two groups, and the outer wall surface of the clamping plate (12) is equipped with an inclined block (16) connected with the inclined groove (15).

4. The biaxial stretching machine for polyimide film according to claim 1, wherein The opposite side of the two groups of clamping plates (12) is provided with a cutting groove (18), and the outer wall surface of the U-shaped frame (4) is equipped with an ear plate (19) for support, and the outer wall surface of the ear plate (19) is equipped with a vertical plate (20) through bolt, and the end of the vertical plate (20) away from the ear plate (19) is equipped with a shovel plate (21) matched with the cutting groove (18).

5. The biaxial stretching machine for polyimide film according to claim 1, wherein The bottom surface of the U-shaped frame (4) is equipped with a speed reducer (22) connected with the rotating roller (6) for transmission, and the power input end of the speed reducer (22) is equipped with a servo motor (23).

6. The biaxial stretching machine for polyimide film according to claim 1, wherein The opposite side of the two groups of clamping plates (12) is bonded with a rubber pad (17) for anti-skid.

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