Polyimide film cutting device

Abstract

The polyimide film cutting device comprises a tension adjusting assembly and a slitting assembly which are sequentially arranged in the film conveying direction. The slitting assembly comprises an n-shaped support, a lifting air cylinder is installed on the n-shaped support, an n-shaped plate is connected to the bottom of a telescopic rod of the lifting air cylinder, a threaded rod is arranged between two side plates of the n-shaped plate, a plurality of movable bases are arranged on the threaded rod in a penetrating mode, adjusting nuts are screwed on the portions, on the two sides of each movable base, of the threaded rod, and a horizontal plate is arranged at the bottom of each movable base. A slitting knife is installed at the bottom of the horizontal plate, and protection plates are installed on the horizontal plate and located on the two sides of the slitting knife. The thin film slitting device can adjust the tension of a thin film during slitting operation, guarantees slitting quality, can adjust the number and the distance of the slitting knives according to needs, is high in adaptability, can protect the slitting knives through the protection plate when the slitting knives are not used, and improves the safety coefficient.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of slitting device especially relates to a polyimide film cutting device. BACKGROUND

[0002] Polyimide film is a kind of excellent film class insulating material, with high and low temperature resistance, electrical insulation, radiation resistance and other characteristics, and is widely used in electronic and electrical industries. After polyimide film production is completed, it needs to be slitting according to the size of different components when used. The existing cutting device cannot control the tension during film transportation, resulting in errors during film slitting. In addition, the slitting knife lacks control and lacks protection measures when not in use, with high risk coefficient. SUMMARY

[0003] The utility model aims at solving the prior art's insufficient, and provides a kind of polyimide film cutting device.

[0004] To achieve the above purpose, the utility model adopts the following technical scheme:

[0005] A kind of polyimide film cutting device, including tension adjusting assembly and slitting component that are sequentially arranged along the film conveying direction;

[0006] Slitting component includes n-shaped support, n-shaped support is installed with lift cylinder, the telescopic rod bottom of lift cylinder is connected with n-shaped plate, screw rod is arranged between the two side plates of n-shaped plate, a plurality of movable seats are provided on screw rod, adjusting nut is screwed on the both sides of each movable seat, movable seat bottom is equipped with horizontal plate, horizontal plate bottom is installed with slitting knife, horizontal plate is installed with protection plate on the both sides of slitting knife.

[0007] The side of protection plate facing slitting knife is equipped with two insertion slots, horizontal plate is inserted in one of insertion slots, when horizontal plate is inserted in the upper insertion slot, the bottom of protection plate is lower than the bottom of slitting knife, when horizontal plate is inserted in the lower insertion slot, the bottom of protection plate is higher than the bottom of slitting knife.

[0008] Tension adjusting assembly includes n-shaped mounting bracket, two side plates of n-shaped mounting bracket are symmetrically provided with through slot, moving block is arranged in through slot, tension roller is installed between the two moving blocks through pivot, tension roller bottom is abutted on the film conveying, and top tight spring is arranged between the top of moving block and the top of through slot.

[0009] The utility model has the advantages that the utility model can adjust the tension of film during slitting operation, ensure slitting quality, can also adjust the number and distance of slitting knife according to needs, high adaptability, slitting knife can be protected by protection plate when not in use, improve safety factor. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is a structural schematic view of the utility model;

[0011] Figure 2 It is a structural schematic view of the cutting knife in the slitting assembly is protected by the protection plate;

[0012] Figure 3 It is a structural schematic view of the cutting knife in the slitting assembly exposes the protection plate to cut;

[0013] In the drawing: 1-tension adjusting assembly; 2-slitting assembly;

[0014] 11-n-shaped mounting bracket; 12-through slot; 13-moving block; 14-rotating shaft; 15-tension roller; 16-tight spring; 17-supporting block;

[0015] 21-n-shaped bracket; 22-lifting air cylinder; 23-n-shaped plate; 24-threaded rod; 25-moving seat; 26-adjusting nut; 27-horizontal plate; 28-cutting knife; 29-protection plate; 210-slot; 211-bolt;

[0016] The utility model will be described below in detail with reference to the drawings. DETAILED DESCRIPTION

[0017] The principles and features of the utility model will be described below in combination with the drawings, and the examples are only used to explain the utility model and not to limit the scope of the utility model. In the following paragraphs, the utility model is described in more specific ways with reference to the drawings. The advantages and features of the utility model will be clearer according to the following description. It should be noted that the drawings are very simplified and use non-precise proportions, only to facilitate and clearly assist the purpose of explaining the utility model examples.

[0018] It should be noted that when the assembly is referred to as "fixed to" another assembly, it can be directly on another assembly or there can be a middle assembly. When a component is considered "connected" to another component, it can be directly connected to another component or there can be a middle component. When a component is considered "set on" another component, it can be directly set on another component or there can be a middle component. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for illustrative purposes.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0021] A polyimide film cutting device, such as Figure 1 As shown, it includes a tension adjustment assembly 1 and a slitting assembly 2 arranged sequentially along the film conveying direction.

[0022] Tension adjustment component 1, as shown Figure 1 As shown, it includes an n-shaped mounting bracket 11. The two side plates of the n-shaped mounting bracket 11 are symmetrically provided with through slots 12. The through slots 12 are provided with moving blocks 13. The tension roller 15 is installed between the two moving blocks 13 through a rotating shaft 14. The bottom of the tension roller 15 abuts against the conveying film. A tensioning spring 16 is provided between the top of the moving block 13 and the top of the through slot 12.

[0023] The tension adjustment component 1, through the action of the top spring 16, can use the tension roller 15 to press down on the film to ensure the tension during the slitting process.

[0024] A support block 17 is provided below the moving block 13 inside the through groove 12. In order to better control the tension, a support block 17 of appropriate thickness can be selected as needed and inserted below the moving block 13 to prevent the tensioning spring 16 from excessively pressing the moving block 13.

[0025] Slitting component 2, as shown in Figures 1 to 3 As shown, it includes an n-shaped bracket 21, on which a lifting cylinder 22 is mounted. The bottom of the telescopic rod of the lifting cylinder 22 is connected to an n-shaped plate 23. A threaded rod 24 is provided between the two side plates of the n-shaped plate 23. Several movable seats 25 are passed through the threaded rod 24. An adjusting nut 26 is screwed on both sides of each movable seat 25 on the threaded rod 24. A horizontal plate 27 is provided at the bottom of the movable seat 25. A slitting blade 28 is installed at the bottom of the horizontal plate 27. Protective plates 29 are installed on both sides of the slitting blade 28 on the horizontal plate 27.

[0026] The slitting component 2 can adjust the number of slitting blades 28 according to the required number and width of slitting, and can also adjust the distance between different slitting blades 28, thus having better adaptability.

[0027] The protective plate 29 has two slots 210 on the side facing the slitting blade 28, and the horizontal plate 27 is inserted into one of the slots 210.

[0028] As shown in Figure 2 When the horizontal plate 27 is inserted into the upper slot 210, the bottom of the protection plate 29 is lower than the bottom of the slitting knife 28.

[0029] As shown in Figure 3 When the horizontal plate 27 is inserted into the lower slot 210, the bottom of the protection plate 29 is higher than the bottom of the slitting knife 28.

[0030] When the slitting knife 28 is not working, the protection plate 29 can protect the slitting knife 28, as shown in Figure 3 The safety factor is improved; when used, the position of the protection plate 29 can be adjusted, as shown in Figure 2 The normal slitting operation is not affected.

[0031] The bottom of the horizontal plate 27 is provided with a mounting groove, the slitting knife 28 penetrates into the mounting groove and is fixed through the bolt 211, the detachable structure is convenient for maintaining and replacing the slitting knife 28.

[0032] The utility model is described above in conjunction with the drawings, obviously, the specific implementation of the utility model is not limited by the above mode, as long as various improvements are made by using the method concept and technical scheme of the utility model, or the utility model is directly applied to other occasions without improvement, all are within the protection scope of the utility model.

Claims

1. A polyimide film cutting apparatus characterized by comprising: The tension adjusting assembly (1) and the slitting assembly (2) are arranged in sequence along the conveying direction of the film. The slitting assembly (2) comprises an n-shaped support (21) on which a lifting cylinder (22) is mounted, the bottom of the lifting cylinder (22) is connected with an n-shaped plate (23), a threaded rod (24) is arranged between the two side plates of the n-shaped plate (23), a plurality of movable seats (25) are arranged on the threaded rod (24), an adjusting nut (26) is screwed on the threaded rod (24) on both sides of each movable seat (25), a horizontal plate (27) is arranged at the bottom of the movable seat (25), a slitting knife (28) is mounted at the bottom of the horizontal plate (27), and a protection plate (29) is mounted on the horizontal plate (27) on both sides of the slitting knife (28).

2. The polyimide film cutting apparatus according to claim 1, wherein The side of the protection plate (29) facing the slitting knife (28) is provided with two upper and lower insertion grooves (210), the horizontal plate (27) is inserted into one of the insertion grooves (210), when the horizontal plate (27) is inserted into the upper insertion groove (210), the bottom of the protection plate (29) is lower than the bottom of the slitting knife (28), and when the horizontal plate (27) is inserted into the lower insertion groove (210), the bottom of the protection plate (29) is higher than the bottom of the slitting knife (28).

3. The polyimide film cutting apparatus according to claim 2, wherein The bottom of the horizontal plate (27) is provided with a mounting groove, and the slitting knife (28) penetrates into the mounting groove and is fixed by bolts (211).

4. The polyimide film cutting apparatus according to claim 1, wherein The tension adjusting assembly (1) comprises an n-shaped mounting frame (11), a through groove (12) is symmetrically arranged on the two side plates of the n-shaped mounting frame (11), a moving block (13) is arranged in the through groove (12), a tension roller (15) is mounted between the two moving blocks (13) through a rotating shaft (14), the bottom of the tension roller (15) abuts against the conveying film, and a jacking spring (16) is arranged between the top of the moving block (13) and the top of the through groove (12).

5. The polyimide film cutting apparatus according to claim 4, wherein A supporting block (17) is arranged below the moving block (13) in the through groove (12).

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