Stretching device for producing insulating polyimide film

Abstract

The utility model relates to the field of insulating material preparation in the microelectronic industry, and discloses a stretching device for insulating polyimide film production, which comprises a base, the top of the base is fixedly connected with two support columns I, the outer side of one support column I is rotatably connected with a rotating rod I, and the top of the base is fixedly connected with a support plate I; a first motor is mounted at the top of the first supporting plate, a second rotating rod is fixedly connected to the output end of the first motor, a film rod is mounted between the first rotating rod and the second rotating rod, fixing mechanisms are arranged at the bottoms of the first rotating rod and the second rotating rod, a fixing block is fixedly connected to the outer side of the film rod, and a supporting frame is fixedly connected to the top of the base. The inner side of the supporting frame is rotationally connected with a third rotating rod. When the film is stretched, the motor II drives the gear set to drive the cleaning brush II to slide back and forth along the fixing strip, and the cleaning brush I wipes the front and back surfaces of the film synchronously, so that dust and impurity residues on the surface are avoided, and the insulation resistance is ensured to be stable.

Description

Technical Field

[0001] This utility model relates to the field of insulating material preparation in the microelectronics industry, and in particular to a stretching device for the production of insulating polyimide films. Background Technology

[0002] Insulating polyimide films, as key insulating materials in the field of microelectronics manufacturing, play an irreplaceable role in high-tech industries such as aerospace, 5G communications, and new energy vehicles. With the development of electronic devices towards higher integration, higher frequency, and thinner designs, higher requirements are placed on the insulation performance, mechanical strength, and thermal stability of polyimide films. These high-performance films are widely used in core components such as flexible circuit boards, semiconductor packaging, and battery separators, further highlighting the industrial value of optimizing stretching device design.

[0003] In existing stretching devices for insulating polyimide film production, dust and impurities accumulate on the film surface during the stretching process, resulting in incomplete cleaning and a decrease in the film's insulation resistance. Traditional film rods require the disassembly of multiple parts during roll changing, making replacement complex and inefficient.

[0004] To address these issues, a stretching device for the production of insulating polyimide films is proposed. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a stretching device for the production of insulating polyimide film, which aims to improve the problems in the prior art where the film surface is contaminated with dust and impurities during the stretching process, resulting in incomplete cleaning and a decrease in the insulation resistance of the film, as well as the problems of disassembling multiple parts and making replacement complicated and inefficient when changing the film roll using traditional film rods.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A stretching device for producing insulating polyimide film includes a base. Two support columns are fixedly connected to the top of the base. A rotating rod is rotatably connected to the outer side of one of the support columns. A support plate is fixedly connected to the top of the base. A motor is mounted on the top of the support plate. A rotating rod is fixedly connected to the output end of the motor. A film rod is installed between the rotating rod and the rotating rod. Both the rotating rod and the rotating rod have a fixing mechanism at their bottoms. A fixing block is fixedly connected to the outer side of the film rod. A support frame is fixedly connected to the top of the base. A rotating rod is rotatably connected to the inner side of the support frame. A film body is sleeved on the outer side of the rotating rod. The end of the film body furthest from the rotating rod is sleeved on the outer side of the film rod. A cleaning brush is fixedly connected to the inner top wall of the support frame. A fixing cotton and a roller cotton are rotatably connected sequentially from top to bottom on the inner side of the support frame. A cleaning mechanism is provided on the top of the base.

[0008] The cleaning mechanism includes a second motor, which is mounted on the top of the base. A gear is fixedly connected to the output end of the second motor, and a first half gear is fixedly connected to the top of the gear. A support column is fixedly connected to the top of the base, and a gear is rotatably connected to the top of the support column. A second half gear is fixedly connected to the top of the gear. A fixing strip is fixedly connected to the top of the fixing strip, and a slide bar is slidably connected to the top of the slide bar. A cleaning brush is fixedly connected to the top of the slide bar, and a long toothed rack is fixedly connected to the bottom of the cleaning brush.

[0009] As a further description of the above technical solution:

[0010] The fixing mechanism includes two outer shells. One outer shell is fixedly connected to the bottom of the second rotating rod via a fixing frame, and the other outer shell is fixedly connected to the bottom of the first rotating rod via a fixing frame. A fixing column is slidably connected inside the outer shell. A spring is sleeved on the outside of the fixing column. A locking block is fixedly connected to one end of the fixing column, and a rotating cover is rotatably connected to the outside of the locking block.

[0011] As a further description of the above technical solution:

[0012] The film body is disposed between the first cleaning brush and the second cleaning brush, and the top of the second cleaning brush is slidably connected to the bottom of the film body;

[0013] As a further description of the above technical solution:

[0014] The first gear and the third gear mesh with each other, and the second rotating rod rotates inside the first support column;

[0015] As a further description of the above technical solution:

[0016] The film body is disposed between the fixed cotton and the roller cotton;

[0017] As a further description of the above technical solution:

[0018] The first half gear meshes with the long rack, and the second half gear meshes with the long rack.

[0019] As a further description of the above technical solution:

[0020] One end of the spring is fixedly connected to the inner wall of the outer casing, and the other end of the spring abuts against the inner wall of the outer casing;

[0021] As a further description of the above technical solution:

[0022] One end of the fixing post is inserted into the fixing block.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, when the film is being stretched, the second motor is started, and the second cleaning brush is driven by the gear set to slide the second cleaning brush inside the fixed strip through the slide bar, so as to realize the reciprocating wiping of the bottom of the film. At the same time, the first cleaning brush at the bottom of the second support plate wipes the top of the film body synchronously. This solves the problem that the film surface is contaminated with dust and impurities during the stretching process, and the cleaning is not thorough, which leads to a reduction in the insulation resistance of the film.

[0025] 2. In this utility model, when the film rod needs to be replaced after a certain amount of film rod is wound up, one end of the rotating cover abuts against one side of the outer shell, causing the fixing post to be pulled out of the fixing block. After the film rod is released from its fixation, the wound film body is removed. After replacing the film rod, the rotating cover is rotated in the opposite direction so that the fixing post will be reinserted into the fixing block under the action of the spring, thus completing the quick replacement. This solves the problem of low work efficiency caused by the complexity and long time required for film rod replacement. Attached Figure Description

[0026] Figure 1 This is a first-view perspective three-dimensional schematic diagram of the stretching device for producing insulating polyimide film proposed in this utility model.

[0027] Figure 2 This is a schematic diagram of the cleaning brush 2 of the stretching device for producing insulating polyimide film proposed in this utility model;

[0028] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0029] Figure 4 This is a schematic diagram of the slide bar of the stretching device for producing insulating polyimide film proposed in this utility model;

[0030] Figure 5 This is a schematic diagram of the fixing mechanism of the stretching device for producing insulating polyimide film proposed in this utility model.

[0031] Figure 6 for Figure 5 Enlarged view at point B

[0032] Legend:

[0033] 1. Base; 2. Support plate 1; 3. Motor 1; 4. Rotating rod 1; 5. Film rod; 6. Support column 1; 7. Film body; 8. Fixing frame; 9. Roller cotton; 10. Spring; 11. Fixing cotton; 12. Rotating rod 3; 13. Fixing column; 14. Support frame; 15. Fixing block; 16. Fixing strip; 17. Cleaning brush 2; 18. Motor 2; 19. Gear 1; 20. First half gear; 21. Support column 4; 22. Gear 3; 23. Second half gear; 24. Long rack; 25. Sliding strip; 26. Cleaning brush 1; 27. Rotating cover; 28. Locking block; 29. ​​Outer shell; 30. Rotating rod 2. Detailed Implementation

[0034] 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.

[0035] Reference Figures 1-6 An embodiment of this utility model provides a stretching device for producing insulating polyimide film, comprising a base 1, two support columns 6 fixedly connected to the top of the base 1, a rotating rod 4 rotatably connected to the outer side of one support column 6, a support plate 2 fixedly connected to the top of the base 1, a motor 3 mounted on the top of the support plate 2, a rotating rod 30 fixedly connected to the output end of the motor 3, a film rod 5 installed between the rotating rod 4 and the rotating rod 30, a fixing mechanism provided at the bottom of both the rotating rod 4 and the rotating rod 30, a fixing block 15 fixedly connected to the outer side of the film rod 5, a support frame 14 fixedly connected to the top of the base 1, a rotating rod 12 rotatably connected to the inner side of the support frame 14, a film body 7 sleeved on the outer side of the rotating rod 12, the end of the film body 7 away from the rotating rod 12 sleeved on the outer side of the film rod 5, a cleaning brush 26 fixedly connected to the inner top wall of the support frame 14, a fixing cotton 11 and a roller cotton 9 rotatably connected sequentially from top to bottom on the inner side of the support frame 14, and a cleaning mechanism provided at the top of the base 1;

[0036] The cleaning mechanism includes a second motor 18, which is mounted on the top of the base 1. A gear 19 is fixedly connected to the output end of the second motor 18. A first half gear 20 is fixedly connected to the top of the gear 19. A support column 4 21 is fixedly connected to the top of the base 1. A gear 3 22 is rotatably connected to the top of the support column 4 21. A second half gear 23 is fixedly connected to the top of the gear 3 22. A fixing strip 16 is fixedly connected to the top of the base 1. A slide strip 25 is slidably connected to the top of the fixing strip 16. A cleaning brush 2 17 is fixedly connected to the top of the slide strip 25. A long rack 24 is fixedly connected to the bottom of the cleaning brush 2 17. The film body 7 is positioned between the cleaning brush 1 26 and the cleaning brush 2 17. The top of the cleaning brush 2 17 is slidably connected to the bottom of the film body 7. Gear 19 and gear 3 22 mesh with each other. A rotating rod 2 30 rotates inside a support column 1 6. The film body 7 is positioned between the fixing cotton 11 and the roller cotton 9. The first half gear 20 meshes with the long rack 24, and the second half gear 23 meshes with the long rack 24.

[0037] The base 1 supports all components, providing a stable working platform. The support frame 14 supports the rotating rod 12, the fixing cotton 11, and the roller cotton 9, allowing them to rotate smoothly inside. It also provides a fixed location for the cleaning brush 26. The rotating rod 12 holds the unstretched film body 7. The roller cotton 9, together with the fixing cotton 11, clamps the film body 7, forming a stable conveying channel to ensure that the film body 7 has a uniform thickness during stretching. The support plate 2 supports the motor 3, which drives the rotation of the rotating rod 30 to stretch and rewind the film body 7. The support column 6 supports the rotating rod 4, which is used to install the film rod 5. The film rod 5 is used to rewind the stretched film body 7. The motor 18 drives the gear 19 to rotate. 19 drives the gear 22 meshing with it to rotate, and drives the first half gear 20 to rotate. The first half gear 20 drives the long rack 24 meshing with it to rotate to one side. Gear 22 drives the second half gear 23 to rotate. The second half gear 23 drives the long rack 24 meshing with it to rotate to the other side, thereby realizing reciprocating motion. The fixing bar 16 provides a sliding track for the slide bar 25. The slide bar 25 drives the second cleaning brush 17 to slide, so that the second cleaning brush 17 reciprocates to wipe the bottom of the film body 7. The support column 21 provides support for gear 22, so that gear 22 rotates stably. The first cleaning brush 26 continuously wipes the top of the film body 7 when it is stretched. In conjunction with the reciprocating motion of the second cleaning brush 17, it quickly removes dirt from both sides of the film body 7.

[0038] Reference Figure 1 , Figure 5 and Figure 6The fixing mechanism includes two outer shells 29. One outer shell 29 is fixedly connected to the bottom of the rotating rod 2 30 via a fixing bracket 8, and the other outer shell 29 is fixedly connected to the bottom of the rotating rod 1 4 via a fixing bracket 8. A fixing post 13 is slidably connected inside the outer shell 29. A spring 10 is sleeved on the outside of the fixing post 13. A locking block 28 is fixedly connected to one end of the fixing post 13. A rotating cover 27 is rotatably connected to the outside of the locking block 28. One end of the spring 10 is fixedly connected to the inner wall of the outer shell 29, and the other end of the spring 10 abuts against the inner wall of the outer shell 29. One end of the fixing post 13 is inserted into the inside of the fixing block 15.

[0039] The fixing bracket 8 is used to fix the two outer shells 29 to the bottom of the rotating rod 4 and the rotating rod 30 respectively, increasing the stability of the outer shell 29 during operation. The outer shell 29 is used to protect the normal operation of its internal parts and ensure that the fixing post 13 slides smoothly inside. The spring 10 is used to provide the automatic reset elastic force of the fixing post 13 to ensure the locking reliability. The fixing post 13 will not move when there is no external force. The fixing post 13 is used to insert into the fixing block 15 to ensure that the rotating rod 4 and the rotating rod 30 lock the membrane rod 5. The locking block 28 is used to rotate the cover 27. When one end of the rotating cover 27 rotates, it abuts against one side of the outer shell 29, thereby pulling the fixing post 13 out of the fixing block 15.

[0040] Working principle: When preparing for film stretching, the film body 7 on the rotating rod 12 is released. The film body 7 passes through the gap between the fixing cotton 11 and the roller cotton 9, and then is fitted onto the outside of the film rod 5. The fixing cotton 11 and the roller cotton 9 are clamped together. Then, the motor 3 is started. The motor 3 drives the rotating rod 4 to rotate, thereby causing the film rod 5 on its outside to wind up the film body 7. Under the winding of the film rod 5 and the action of the fixing cotton 11 and the roller cotton 9, the film body 7 is gradually stretched and wound onto the outside of the film rod 5. During the stretching process, the motor 18 is started. The motor 18 drives the gear 19 to rotate. The gear 19 drives the gear 22 that meshes with it to rotate, and drives the first half gear 20 to rotate. When it rotates to a certain angle, the first half gear 20 meshes with the long rack 24, thereby driving the long rack 24 to rotate towards the first half gear 20. As the gear rotates, when it reaches another angle, the second half gear 23 fixed at the top of gear 3 22 meshes with the long rack 24, thereby driving the cleaning brush 2 17 to reciprocate. The slide bar 25 carries the film body 7 and slides inside the fixing bar 16, simultaneously cleaning the bottom of the film body 7. Meanwhile, the cleaning brush 1 26 at the bottom of the support frame 14 wipes the top of the film body 7 from above, forming a simultaneous cleaning from top to bottom to ensure that there are no impurities left on the film surface. When the film body 7 is wound up to a certain amount and the film rod 5 needs to be replaced, one end of the rotating cover 27 is rotated to abut against one side of the outer shell 29, thereby driving the fixing post 13 to be pulled out of the fixing block 15. After the film rod 5 is released from the fixing, the wound film body 7 is removed. After replacing the film rod 5, the rotating cover 27 is rotated in the opposite direction so that the fixing post 13 will be reinserted into the fixing block 15 under the action of the spring 10, completing the quick replacement.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 stretching device for producing insulating polyimide film, comprising a base (1), characterized in that: The base (1) is fixedly connected to two support columns (6) at the top. A rotating rod (4) is rotatably connected to the outside of one of the support columns (6). The base (1) is fixedly connected to a support plate (2). A motor (3) is installed on the top of the support plate (2). A rotating rod (30) is fixedly connected to the output end of the motor (3). A membrane rod (5) is installed between the rotating rod (4) and the rotating rod (30). A fixing mechanism is provided at the bottom of both the rotating rod (4) and the rotating rod (30). The membrane rod (5) is fixedly connected to the outside of the membrane rod (5). There is a fixed block (15), and a support frame (14) is fixedly connected to the top of the base (1). The support frame (14) is rotatably connected to the inner side of the rotating rod three (12). A film body (7) is sleeved on the outer side of the rotating rod three (12). The end of the film body (7) away from the rotating rod three (12) is sleeved on the outer side of the film rod (5). A cleaning brush one (26) is fixedly connected to the inner top wall of the support frame (14). A fixed cotton (11) and a roller cotton (9) are rotatably connected from top to bottom on the inner side of the support frame (14). A cleaning mechanism is provided on the top of the base (1). The cleaning mechanism includes a second motor (18), which is mounted on the top of the base (1). The output end of the second motor (18) is fixedly connected to a gear (19). The top of the gear (19) is fixedly connected to a first half gear (20). The top of the base (1) is fixedly connected to a fourth support column (21). The top of the fourth support column (21) is rotatably connected to a third gear (22). The top of the third gear (22) is fixedly connected to a second half gear (23). The top of the base (1) is fixedly connected to a fixing strip (16). The top of the fixing strip (16) is slidably connected to a slide bar (25). The top of the slide bar (25) is fixedly connected to a second cleaning brush (17). The bottom of the second cleaning brush (17) is fixedly connected to a long toothed rack (24).

2. The stretching apparatus for producing insulating polyimide film according to claim 1, characterized in that: The fixing mechanism includes two outer shells (29). One outer shell (29) is fixedly connected to the bottom of the second rotating rod (30) by a fixing frame (8), and the other outer shell (29) is fixedly connected to the bottom of the first rotating rod (4) by the fixing frame (8). A fixing column (13) is slidably connected inside the outer shell (29). A spring (10) is sleeved on the outside of the fixing column (13). A locking block (28) is fixedly connected to one end of the fixing column (13). A rotating cover (27) is rotatably connected to the outside of the locking block (28).

3. The stretching apparatus for producing insulating polyimide film according to claim 1, characterized in that: The film body (7) is disposed between the first cleaning brush (26) and the second cleaning brush (17), with the top of the second cleaning brush (17) slidably connected to the bottom of the film body (7).

4. The stretching apparatus for producing insulating polyimide film according to claim 1, characterized in that: The gear one (19) meshes with the gear three (22), and the rotating rod two (30) rotates inside one of the support columns one (6).

5. The stretching apparatus for producing insulating polyimide film according to claim 1, characterized in that: The film body (7) is disposed between the fixed cotton (11) and the roller cotton (9).

6. The stretching apparatus for producing insulating polyimide film according to claim 1, characterized in that: The first half gear (20) meshes with the long rack (24), and the second half gear (23) meshes with the long rack (24).

7. The stretching apparatus for producing insulating polyimide film according to claim 2, characterized in that, One end of the spring (10) is fixedly connected to the inner wall of the outer shell (29), and the other end of the spring (10) abuts against the inner wall of the outer shell (29).

8. The stretching apparatus for producing insulating polyimide film according to claim 2, characterized in that: One end of the fixing post (13) is inserted into the fixing block (15).

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