Finish machining die cutting device for polyimide film

By setting up channels and conveying mechanisms in the precision die-cutting device for polyimide films, and using a rotating shaft to drive the conveyor belt and cutting blades to cut the film, the problem of difficulty in meeting the cutting requirements of different shapes and sizes in the existing technology is solved, and precise film cutting is achieved.

CN224074462UActive Publication Date: 2026-04-03XINGHUI AEROSPACE TECHNOLOGY (WUXI) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-16
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Existing technologies make it difficult to achieve precise die-cutting of polyimide films, failing to meet the needs of different shapes and sizes.

Method used

A precision die-cutting device for polyimide films was designed. By setting up channels and conveying mechanisms in the film cutting chamber, the device uses a rotating shaft to drive the conveyor belt and cutting blades to cut the film, achieving cuts of different widths.

Benefits of technology

It enables precise cutting of polyimide films, meeting the processing needs of different shapes and sizes.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224074462U_ABST
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Abstract

The utility model discloses a polyimide film finish machining die cutting device, and particularly relates to the field of polyimide film processing, which comprises a film cutting bin, a channel is arranged in the film cutting bin, a conveying mechanism is arranged in the channel, a plurality of groups of grooves are arranged on the surface of the film cutting bin, and a cutting mechanism is arranged between every two groups of coaxial grooves. The cutting mechanism comprises first rotating shafts arranged between the two sets of grooves, rotating wheels are arranged on the surfaces of the first rotating shafts, cutting pieces are arranged on the surfaces of the rotating wheels in a sleeved mode, and the cutting pieces correspond to the surface of the conveying mechanism. Then, the cutting grooves formed in the surface of the conveying belt and the rolling wheels and the cutting pieces arranged on the surface of the first rotating shaft are used for cutting the passing polyimide film, and meanwhile, the multiple sets of cutting grooves are matched with the cutting pieces, so that the polyimide films with different widths can be cut.
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Description

Technical Field

[0001] This utility model relates to the field of polyimide film processing, and more specifically, to a precision die-cutting device for polyimide films. Background Technology

[0002] Polyimide (PI) film is a high-performance polymer film with excellent high-temperature resistance, chemical corrosion resistance, mechanical properties, and electrical properties. It has a wide range of applications in electronics, aerospace, medical and other fields, such as the preparation of flexible electronic devices, high-temperature electrical insulation materials, membrane keyboards, and sensors.

[0003] During the production process, the polyimide film needs to be precisely die-cut to meet the requirements of different shapes and sizes;

[0004] Therefore, a precision die-cutting device for polyimide films is proposed to address the above problems. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a finishing die-cutting device for polyimide film to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a precision die-cutting device for polyimide film, comprising a film cutting chamber, characterized in that the film cutting chamber is provided with a channel inside, and a conveying mechanism is provided inside the channel; multiple sets of grooves are formed on the surface of the film cutting chamber; a cutting mechanism is provided between every two sets of coaxial grooves; the cutting mechanism includes a rotating shaft disposed between two sets of grooves; a rotating wheel is provided on the surface of the rotating shaft; and a cutting blade is sleeved on the surface of each rotating wheel; the cutting blade corresponds to the surface of the conveying mechanism.

[0007] Preferably, the conveying mechanism includes a driving device disposed on the side wall of the film cutting chamber, the driving device having a second rotating shaft at its power end, and another second rotating shaft being movably disposed at the other end of the channel, with a conveyor belt sleeved between the two sets of second rotating shafts.

[0008] Preferably, the side wall of the cutting chamber has a through hole, and a bearing is installed inside the through hole. The middle part of the bearing is connected to the power end of the drive device, and the end of the bearing inner ring away from the drive device is connected to the rotating shaft.

[0009] Preferably, the surface of the conveyor belt is provided with multiple sets of cutting grooves, and each set of cutting grooves corresponds to a cutting blade.

[0010] Preferably, baffles are provided at both ends of the rotating shaft, and the two sets of baffles are mutually isolated from the groove surface of the film cutting chamber.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] Compared with the prior art, this utility model drives the rotating shaft two to rotate through the driving device, and uses the rotating shaft two to drive the conveyor belt to move, thereby moving the polyimide film. Then, the cutting grooves set on the surface of the conveyor belt and the rollers and cutting blades set on the surface of the rotating shaft one are used to cut the passing polyimide film. At the same time, by using multiple sets of cutting grooves and cutting blades in combination, polyimide films of different widths can be cut. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the cutting mechanism of this utility model.

[0015] Figure 3 This is a schematic diagram of the conveying mechanism of this utility model.

[0016] The attached diagram is labeled as follows: 1. Cutting chamber; 2. Channel; 3. Conveying mechanism; 4. Cutting mechanism; 5. Baffle; 6. Rotating shaft one; 7. Rotating wheel; 8. Drive device; 9. Rotating shaft two; 10. Conveyor belt; 11. Cutting groove; 12. Cutting disc. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Example 1

[0019] As attached Figures 1 to 3 The device for precision die-cutting of polyimide film shown includes a cutting chamber 1, a channel 2 inside the cutting chamber 1, and a conveying mechanism 3 inside the channel 2. The surface of the cutting chamber 1 has multiple sets of grooves, and a cutting mechanism 4 is arranged between every two sets of coaxial grooves. The cutting mechanism 4 includes a rotating shaft 6 arranged between two sets of grooves, and a rotating wheel 7 is arranged on the surface of the rotating shaft 6. A cutting blade 12 is sleeved on the surface of the rotating wheel 7, and the cutting blade 12 corresponds to the surface of the conveying mechanism 3.

[0020] Specifically: the drive device 8 drives the rotating shaft 9 to rotate, and the rotating shaft 9 drives the conveyor belt 10 to move, thereby moving the polyimide film. Then, the cutting groove 11 on the surface of the conveyor belt 10 and the roller and cutting blade 12 on the surface of the rotating shaft 6 are used to cut the passing polyimide film. At the same time, by using multiple sets of cutting grooves 11 and cutting blades 12, polyimide films of different widths can be cut.

[0021] Example 2

[0022] Based on Embodiment 1, the solution in Embodiment 1 will be further described in detail below, with reference to the specific working method described in detail:

[0023] like Figures 1 to 3 As shown, in a preferred embodiment, the conveying mechanism 3 includes a driving device 8 disposed on the side wall of the film cutting chamber 1. The driving device 8 has a second rotating shaft 9 at its power end, and another rotating shaft 9 is movably disposed at the other end of the channel 2. A conveyor belt 10 is sleeved between the two sets of rotating shafts 9.

[0024] like Figures 1 to 3 As shown, in a preferred embodiment, the side wall of the cutting chamber 1 has a through hole, and a bearing is installed inside the through hole. The middle part of the bearing is connected to the power end of the drive device 8, and the end of the bearing inner ring away from the drive device 8 is connected to the rotating shaft 9.

[0025] like Figures 1 to 3 As shown, in a preferred embodiment, the surface of the conveyor belt 10 is provided with multiple sets of cutting grooves 11, and each set of cutting grooves 11 corresponds to a cutting blade 12.

[0026] like Figures 1 to 3 As shown, in a preferred embodiment, both ends of the rotating shaft 6 are provided with baffles 5, and the two sets of baffles 5 are mutually blocked from the groove surface of the film cutting chamber 1.

[0027] The working process of this utility model is as follows:

[0028] In use, the drive device 8 drives the rotating shaft 9 to rotate, and the rotating shaft 9 drives the conveyor belt 10 to move, thereby moving the polyimide film. Then, the cutting groove 11 on the surface of the conveyor belt 10 and the rollers and cutting blades 12 on the surface of the rotating shaft 6 are used to cut the passing polyimide film. At the same time, by using multiple sets of cutting grooves 11 and cutting blades 12, polyimide films of different widths can be cut.

[0029] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0030] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0031] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A finishing die cutting apparatus for polyimide film comprising a film cutting magazine (1), characterized in that, The film cutting bin (1) is internally provided with a channel (2), and the channel (2) is internally provided with a conveying mechanism (3), a plurality of groups of grooves are formed on the surface of the film cutting bin (1), a cutting mechanism (4) is arranged between every two coaxial grooves, the cutting mechanism (4) comprises a rotating shaft (6) arranged between the two grooves, rotating wheels (7) are arranged on the surface of the rotating shaft (6), and cutting blades (12) are sleeved on the surface of the rotating wheels (7) and correspond to the surface of the conveying mechanism (3).

2. The finishing die cutting apparatus for polyimide film according to claim 1, wherein: The conveying mechanism (3) comprises a driving device (8) arranged on the side wall of the film cutting bin (1), a rotating shaft (9) is arranged at the power end of the driving device (8), another rotating shaft (9) is movably arranged at the other end of the channel (2), and a conveying belt (10) is sleeved between the two rotating shafts (9).

3. The finishing die cutting apparatus for polyimide film according to claim 2, wherein: A through hole is formed in the side wall of the film cutting bin (1), and a bearing is arranged in the through hole, the middle part of the bearing is connected with the power end of the driving device (8), and one end of the inner ring of the bearing, which is away from the driving device (8), is connected with the rotating shaft (9).

4. The finishing die cutting apparatus for polyimide film according to claim 2, wherein: A plurality of groups of cutting grooves (11) are formed on the surface of the conveying belt (10), and each group of cutting grooves (11) corresponds to a cutting blade (12).

5. The finishing die cutting apparatus for polyimide film according to claim 1, wherein: The rotating shaft (6) is provided with a baffle (5) at both ends, and the two baffles (5) are mutually blocked from the surfaces of the grooves formed on the film cutting bin (1).