Biaxial stretching device for polyimide film processing

Abstract

The embodiment of the utility model provides a two-way stretching device for polyimide film processing, and relates to the technical field of polyimide film processing. The two-way stretching device for polyimide film processing comprises a guide rail, a pair of moving frames are arranged on the guide rail, one moving frame is fixedly connected with one end of the guide rail, the other moving frame is slidably connected with the guide rail, mounting frames are arranged on the upper sides of the moving frames, pull rollers are mounted in the mounting frames, and fixing mechanisms are mounted at the upper ends and the lower ends of the two mounting frames. And the fixing mechanism is used for fixing the side of the film. The two-way lead screw is rotated to enable the two adjusting plates to be close to each other, then the two hollow plates are located on the two sides of a thin film, the rolling shaft is attached to the thin film and clamps the thin film, and when the movable frame drives the installation frame to stretch the thin film, the thin film can move through rotation of the rolling shaft, stretching of the thin film is not affected, and the thin film can be conveniently taken out. And meanwhile, the film is fixed and prevented from deforming.

Description

Technical Field

[0001] The utility model relates to the technical field of polyimide film processing, in particular to a two-way stretching device for polyimide film processing. Background Art

[0002] Polyimide film is one of the earliest commercial products of polyimide, used for slot insulation of motors and cable wrapping materials. Transparent polyimide film can be used as a flexible solar cell bottom plate. In the production of polyimide film, due to the existence of macromolecular structures in the film, the film needs to be stretched bidirectionally.

[0003] Among them, Chinese Patent Application No.: CN202022839037.7 discloses a two-way stretching device for polyimide film, including an installation table. A groove is opened at the top of the installation table. The inner walls on the left and right sides of the groove are rotatably connected with rotating rods. Threads are provided at both ends of the rotating rods. A fixed table is fixedly connected to the inner wall of the groove. A placement plate is fixedly connected to the top of the fixed table. Slots are opened on both the left and right sides of the top of the placement plate. For this two-way stretching device for polyimide film, by pressing down two pressing plates, two pressing blocks respectively press the two sides of the film into the moving blocks, so that the two sliding plates move out to the bottom of the accommodating groove, enabling the elastic force of the second springs on the front and back sides of the sliding plates to be restored, and the sliders on the front and back sides of the sliding plates respectively abut against the front and back sides of the bottom of the installation plate, thereby clamping and fixing both ends of the film, improving the stability of film stretching, and thus facilitating the two-way stretching operation of the film.

[0004] As can be seen from the above, in the prior art, in order to ensure the stability of film stretching, the two sides of the film are clamped. However, when the film is stretched, the other two sides of the film are not fixed. Therefore, in the prior art, only the stability of film stretching can be simply maintained, and it is not convenient to prevent the film from deforming during stretching. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a two-way stretching device for polyimide film processing, which can avoid the situation that when the film is stretched, the other two sides of the film are not fixed. Therefore, in the prior art, only the stability of film stretching can be simply maintained, and it is not convenient to prevent the film from deforming during stretching.

[0006] The utility model provides a two-way stretching device for processing polyimide films, which comprises a guide rail. A pair of moving frames are arranged on the guide rail. One of the moving frames is fixedly connected to one end of the guide rail, and the other moving frame is slidably connected to the guide rail. An installation frame is arranged on the upper side of the moving frame, and a drawing roller is installed in the installation frame. Fixed mechanisms are installed at the upper and lower ends of the two installation frames, and the fixed mechanisms are used for fixing the side edges of the film. The fixed mechanism comprises a sliding plate located on the upper side of the installation frame. A stretching plate is slidably arranged in the sliding plate. Bolts are arranged on one side of the sliding plate and the stretching plate. The bolts penetrate through perforations and are threadedly connected with nuts. Symmetrical chute two is arranged on the lower side of the sliding plate. Symmetrical adjusting plates are slidably arranged in the chute two. Symmetrical guide rods are slidably arranged on the adjusting plates. One end of the guide rod is connected to a long plate. A hollow plate is arranged on one side of the long plate. A plurality of rollers are rotatably arranged in the hollow plate. A bidirectional lead screw is rotatably arranged in the chute two. The adjusting plate is threadedly connected with the bidirectional lead screw.

[0007] In a specific implementation scheme, moving blocks are arranged at the upper and lower ends of the drawing roller, and positioning holes are arranged on one side of the moving blocks.

[0008] In a specific implementation scheme, chute one is arranged on both the upper and lower sides of the installation frame, and the two moving blocks are respectively slidably connected with the two chute one.

[0009] In a specific implementation scheme, fixed seats are arranged on both the upper and lower sides of the installation frame. Screws are threadedly connected to the fixed seats. The lower end of the screw is connected to a positioning post. The positioning post is inserted and matched with the positioning hole. Perforations are arranged on the positioning post.

[0010] In a specific implementation scheme, a limiting groove is arranged on the sliding plate, and a convex block is arranged on the upper side of the stretching plate. The convex block is slidably connected with the limiting groove.

[0011] In a specific implementation scheme, a spring is sleeved on the guide rod between the adjusting plate and the long plate. A pull rod is arranged at the middle position of the long plate. The pull rod penetrates through the adjusting plate and is slidably connected with the adjusting plate.

[0012] In a specific implementation scheme, a moving lead screw is rotatably arranged inside the guide rail. The moving lead screw is threadedly connected with the moving frame sliding on the guide rail.

[0013] The two-way stretching device for processing polyimide films provided by the embodiment of the utility model has the following beneficial effects compared with the prior art:

[0014] 1. By rotating the bidirectional lead screw of the present utility model, the two adjusting plates approach each other, so that the two hollow plates are located on both sides of the film. The roller is attached to and clamps the film. When the moving frame drives the installation frame to stretch the film, the film can not only move by the rotation of the roller, which does not affect the stretching of the film, but also fixes the film to prevent the film from deforming.

[0015] 2. One end of the slide plate and the stretching plate of the present utility model are inserted into the perforation through bolts, which assists the fixing effect of the auxiliary positioning column on the pulling roller and further improves the stability of the pulling roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 The first overall structure schematic diagram of the embodiment of the present utility model;

[0018] Figure 2 The second overall structure schematic diagram of the embodiment of the present utility model;

[0019] Figure 3 The structure schematic diagram of the installation frame of the embodiment of the present utility model;

[0020] Figure 4 For the embodiment of the present utility model Figure 3 The structure schematic diagram of the A position;

[0021] Figure 5 The split structure schematic diagram of the moving block and the pulling roller of the embodiment of the present utility model;

[0022] Figure 6 The structure schematic diagram of the fixing mechanism of the embodiment of the present utility model;

[0023] Figure 7 The split structure schematic diagram of the adjusting plate and the stretching plate of the embodiment of the present utility model;

[0024] Figure 8 The structure schematic diagram of the adjusting plate of the embodiment of the present utility model.

[0025] ICON:

[0026] 1. Guide rail; 2. Moving lead screw; 3. Moving frame; 4. Mounting frame; 41. First chute; 42. Fixed seat; 43. Screw; 44. Positioning column; 45. Perforation; 5. Pulling roller; 51. Moving block; 52. Positioning hole; 6. Fixing mechanism; 61. Slide plate; 62. Limiting groove; 63. Tensile plate; 631. Second chute; 632. Bi-directional lead screw; 64. Bolt; 65. Bump; 66. Adjusting plate; 67. Guide rod; 671. Spring; 68. Long plate; 681. Hollow plate; 682. Roller; 69. Pulling rod. Detailed implementation mode

[0027] In the prior art, in order to ensure the stability of film stretching, the two sides of the film are clamped. However, when the film is stretched, the other two sides of the film are not fixed. Therefore, in the prior art, only the stability of film stretching can be simply maintained, and it is not convenient to prevent the film from deforming during stretching. Therefore, through research, a two-way stretching device for polyimide film processing is provided. When in use, by rotating the bi-directional lead screw, the two adjusting plates approach each other, so that the two hollow plates are located on both sides of the film. The rollers are in contact with and clamp the film. When the moving frame drives the mounting frame to stretch the film, the film can not only move through the rotation of the rollers, which does not affect the stretching of the film, but also the film is fixed to prevent deformation, thus solving the above defects.

[0028] The following will, with reference to the accompanying drawings, elaborate on some implementation modes of the present utility model. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0029] Embodiment 1

[0030] Please refer to Figures 1-8 , the embodiment of the present utility model provides a two-way stretching device for polyimide film processing, including a guide rail 1. A pair of moving frames 3 are arranged on the guide rail 1. One moving frame 3 is fixedly connected to one end of the guide rail 1, and the other moving frame 3 is slidably connected to the guide rail 1. A mounting frame 4 is arranged on the upper side of the moving frame 3. Among them, a moving lead screw 2 is rotatably arranged inside the guide rail 1. The moving lead screw 2 is driven by a motor. The moving lead screw 2 is threadedly connected to the moving frame 3 sliding on the guide rail 1. When the moving lead screw 2 rotates, the moving frame 3 drives the mounting frame 4 to move to stretch the film.

[0031] In order to fix both ends of the film, a pulling roller 5 is installed in the mounting frame 4. The two ends of the film can be wound around the pulling roller 5. Since moving blocks 51 are arranged at the upper and lower ends of the pulling roller 5, and a positioning hole 52 is formed on one side of each moving block 51. At the same time, first chutes 41 are formed on both the upper and lower sides of the mounting frame 4. The two moving blocks 51 are respectively slidably connected to the two first chutes 41. By sliding the moving blocks 51 in the unclosed first chutes 41, the pulling roller 5 can be moved out of the mounting frame 4, which is convenient for disassembling the pulling roller 5.

[0032] Furthermore, fixing seats 42 are arranged on both the upper and lower sides of the installation frame 4. A screw rod 43 is threadedly connected to the fixing seat 42. The lower end of the screw rod 43 is connected to a positioning column 44. The positioning column 44 is inserted and matched with the positioning hole 52. A through hole 45 is provided on the positioning column 44. By moving the positioning column 44 to the positioning hole 52 with the screw rod 43, the pulling roller 5 can be fixed, improving the stability of the pulling roller 5 during stretching.

[0033] It has to be said that in order to prevent the film from deforming during stretching, fixing mechanisms 6 are installed at the upper and lower ends of the two installation frames 4. The fixing mechanisms 6 are used to fix the sides of the film.

[0034] Among them, the fixing mechanism 6 includes a sliding plate 61 located on the upper side of the installation frame 4. A stretching plate 63 is slidably arranged in the sliding plate 61. A limiting groove 62 is provided on the sliding plate 61. A convex block 65 is arranged on the upper side of the stretching plate 63. The convex block 65 is slidably connected to the limiting groove 62. The sliding of the stretching plate 63 and the sliding plate 61 satisfies the movement path of the installation frame 4 when stretching the film.

[0035] Furthermore, symmetric second chutes 631 are provided on the lower side of the sliding plate 61. Symmetric adjusting plates 66 are slidably arranged in the second chutes 631. Symmetric guide rods 67 are slidably arranged on the adjusting plates 66. One end of the guide rod 67 is connected to a long plate 68. A hollow plate 681 is arranged on one side of the long plate 68. A plurality of rollers 682 are rotatably arranged in the hollow plate 681. The film is placed between the two adjusting plates 66. By moving the adjusting plates 66 closer to each other, the rollers 682 are brought into contact with the film. Since the rollers 682 can rotate, during the stretching of the film, not only can the film be clamped to prevent deformation, but also the film can be moved, without affecting the stretching of the film.

[0036] Even further, a spring 671 is sleeved on the guide rod 67 between the adjusting plate 66 and the long plate 68. The spring 671 urges the rollers 682 to be in close contact with the film, improving the fixing effect. Among them, a pull rod 69 is arranged at the middle position of the long plate 68. The pull rod 69 penetrates through the adjusting plate 66 and is slidably connected to the adjusting plate 66. By pulling the pull rod 69, the rollers 682 can be moved away from the film, facilitating the removal of the film.

[0037] In order to make the adjusting plate 66 more stable, a bidirectional lead screw 632 is rotatably arranged in the second chute 631. The adjusting plate 66 is threadedly connected to the bidirectional lead screw 632.

[0038] In this application, by rotating the bidirectional lead screw 632, the two adjusting plates 66 are made to approach each other, so that the two hollow plates 681 are located on both sides of the film. The roller 682 is attached to and clamps the film. When the moving frame 3 drives the mounting frame 4 to stretch the film, the film can not only move by the rotation of the roller 682, which does not affect the stretching of the film, but also fixes the film to prevent the film from deforming.

[0039] In summary, the working principle of a two-way stretching device for polyimide film processing according to an embodiment of the present utility model is as follows: The two ends of the film are wound around the two pulling rollers 5, and then the upper and lower sides of the film are placed between the corresponding two adjusting plates 66. Rotate the bidirectional lead screw 632 to make the two adjusting plates 66 approach each other. After moving to a suitable position, the roller 682 clamps the film to prevent the film from deforming during stretching, and by rotating the moving lead screw 2, the moving frame 3 drives the mounting frame 4 to move to achieve the stretching of the film.

[0040] Embodiment 2

[0041] In order to facilitate the disassembly of the pulling roller 5, it is fixed by the positioning post 44. On the basis of the above embodiment, in order to further improve the stability of the pulling roller 5, as Figure 2 shown, bolts 64 are provided on one side of the sliding plate 61 and the stretching plate 63. The bolts 64 pass through the through holes 45 and are threadedly connected with nuts to improve the stability of the pulling roller 5.

[0042] In this application, the bolts 64 at one end of the sliding plate 61 and the stretching plate 63 are inserted into the through holes 45 to assist the fixing effect of the positioning post 44 on the pulling roller 5, and further improve the stability of the pulling roller 5.

[0043] The above is only the preferred embodiment of the present utility model and is not used to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A biaxial stretching device for processing polyimide film, comprising a guide rail (1), characterized in that: A pair of movable frames (3) are arranged on the guide rail (1), one of the movable frames (3) is fixedly connected to one end of the guide rail (1), and the other movable frame (3) is slidably connected to the guide rail (1); a mounting frame (4) is arranged on the upper side of the movable frame (3), a pulling roller (5) is installed in the mounting frame (4), and fixing mechanisms (6) are installed at the upper and lower ends of the two mounting frames (4), and the fixing mechanisms (6) are used to fix the side of the film, and the fixing mechanisms (6) include a slide plate (61) located on the upper side of the mounting frame (4), a stretching plate (63) is slidably arranged in the slide plate (61), and a screw is arranged on one side of each of the slide plate (61) and the stretching plate (63). The bolt (64) passes through the through hole (45) and is threadedly connected with the nut. A symmetrical sliding groove (631) is provided on the lower side of the slide plate (61). A symmetrical adjustment plate (66) is slidably arranged in the sliding groove (631). A symmetrical guide rod (67) is slidably arranged on the adjustment plate (66). One end of the guide rod (67) is connected to a long plate (68). A hollow plate (681) is arranged on one side of the long plate (68). A plurality of rollers (682) are rotatably arranged in the hollow plate (681). A bidirectional screw rod (632) is rotatably arranged in the sliding groove (631). The adjustment plate (66) is threadedly connected to the bidirectional screw rod (632).

2. The polyimide film processing biaxial stretching device according to claim 1, characterized in that: The upper and lower ends of the pulling roller (5) are provided with moving blocks (51), and one side of the moving block (51) is provided with a positioning hole (52).

3. The biaxial stretching device for polyimide film processing according to claim 2, characterized in that: The installation frame (4) is provided with a slide groove (41) on both the upper and lower sides, and the two moving blocks (51) are respectively slidably connected to the two slide grooves (41).

4. The polyimide film processing biaxial stretching device according to claim 3, characterized in that: The upper and lower sides of the installation frame (4) are both provided with a fixing seat (42), a screw rod (43) is threadedly connected to the fixing seat (42), a positioning column (44) is connected to the lower end of the screw rod (43), the positioning column (44) is plugged into the positioning hole (52), and a through hole (45) is opened on the positioning column (44).

5. The polyimide film processing biaxial stretching device according to claim 1, characterized in that: The slide plate (61) is provided with a limiting groove (62), and the upper side of the stretching plate (63) is provided with a protrusion (65), and the protrusion (65) is slidably connected to the limiting groove (62).

6. The polyimide film processing biaxial stretching device according to claim 1, characterized in that: A spring (671) is sleeved on the guide rod (67) between the adjustment plate (66) and the long plate (68), and a pull rod (69) is arranged at the middle position of the long plate (68). The pull rod (69) passes through the adjustment plate (66) and is slidably connected to the adjustment plate (66).

7. The polyimide film processing biaxial stretching device according to claim 1, characterized in that: A movable screw rod (2) is rotatably arranged inside the guide rail (1), and the movable screw rod (2) is threadedly connected to a movable frame (3) sliding on the guide rail (1).

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