A PET release film anti-bubble production device

Abstract

This utility model relates to the field of PET release film production technology and discloses a PET release film anti-bubble production device. A unwinding frame is fixedly connected to the top of the worktable, and an unwinding roller is rotatably connected to the top of the unwinding frame. An inclined roller is hinged to the top of the column, and a clamping frame is fixedly connected to the end of the worktable near the support leg. Compared with traditional technology, this utility model provides an inclined roller and a clamping roller at the top of the worktable. By utilizing the inclined angle of the inclined roller to change the tension distribution and contact pattern of the film material, the adsorption and encapsulation state between the film material and air is broken, promoting the efficient escape of hidden air bubbles. Then, the clamping roller and the exhaust roller clamp and transport the film, achieving secondary extrusion to remove interlayer encapsulated air while tightly clamping to prevent secondary air entrapment. This significantly reduces the residual bubble rate of the PET release film after winding, improves the flatness of the film material, achieves efficient bubble removal, and improves the purity of the wound film.

Description

Technical Field

[0001] This utility model relates to the field of PET release film production technology, and more specifically, to a PET release film anti-bubble production device. Background Technology

[0002] PET release film is widely used in electronic component manufacturing, optical film lamination, and packaging materials due to its excellent high temperature resistance, chemical corrosion resistance, and good peel performance. In the production process of PET release film, the winding process is one of the key links that determines the final quality of the film material. Among them, the problem of residual air bubbles has always been a core technical pain point that restricts the improvement of product quality.

[0003] Traditional devices use the traction force of rotating winding rollers to slightly compress the film material, and the tension of the film material itself to expel the air attached to the surface. However, they cannot effectively compress or guide the air bubbles hidden inside the film material, making it difficult for these air bubbles to escape. As a result, these air bubbles remain in the film roll after winding. At the same time, they are prone to adsorption with air during high-speed conveying, which aggravates the problem of air bubble residue. To address this issue, a PET release film anti-bubble production device was designed. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, this utility model provides a PET release film anti-bubble production device, which has the advantage of efficient bubble removal.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a PET release film anti-bubble production device, comprising a workbench, an unwinding frame fixedly connected to the top of the workbench, an unwinding roller rotatably connected to the top of the unwinding frame, a support leg fixedly connected to the upper surface of the workbench, a column fixedly connected to the top of the support leg, an inclined roller hinged to the top of the column, a clamping frame fixedly connected to the end of the workbench near the support leg, a clamping roller rotatably connected to the inner wall of the clamping frame, a lifting plate slidably connected to the inner wall of the clamping frame, an exhaust frame rotatably connected to the bottom of the lifting plate, a double-threaded rod threadedly connected to the top of the clamping frame, two threaded sliders symmetrically threadedly connected to the outer wall of the double-threaded rod, a push rod hinged to the outer wall of the threaded sliders, a push block fixedly connected to the top of the lifting plate, a push block hinged to the inner wall of the push block at the bottom of the push rod, and a take-up frame fixedly connected to the end of the workbench away from the unwinding frame, a take-up roller rotatably connected to the top of the take-up frame.

[0006] As a preferred embodiment of this utility model, one end of the unwinding roller extends out of the outer wall of the unwinding frame, a first gear is fixedly connected to the extended end of the unwinding roller, and a motor is fixedly connected to the outer wall of the unwinding frame.

[0007] As a preferred embodiment of this utility model, the output end of the motor is fixedly connected to a second gear, which meshes with the first gear.

[0008] As a preferred embodiment of this utility model, the top ends of the unwinding frame and the winding frame are symmetrically fixedly connected with sliding frames, the inner walls of the sliding frames are slidably connected with sliding blocks, the inner walls of the two sliding blocks are rotatably connected with top pressure rollers, and springs are fixedly connected at the connection between the inner wall of the sliding frame and the sliding blocks.

[0009] As a preferred embodiment of this utility model, a guide frame is fixedly connected to the outer wall of the unwinding frame, a guide roller is rotatably connected to the inner wall of the guide frame, a guide rail plate is fixedly connected to the top of the support leg, an adjusting slider is slidably connected to the inner wall of the guide rail plate, a cylinder is fixedly connected to the top of the guide rail plate, and the output end of the cylinder is fixedly connected to the outer wall of the adjusting slider.

[0010] As a preferred embodiment of this utility model, a guide frame is fixedly connected to the outer wall of the unwinding frame, a guide roller is rotatably connected to the inner wall of the guide frame, a guide rail plate is fixedly connected to the top of the support leg, an adjusting slider is slidably connected to the inner wall of the guide rail plate, a cylinder is fixedly connected to the top of the guide rail plate, and the output end of the cylinder is fixedly connected to the outer wall of the adjusting slider.

[0011] As a preferred embodiment of this utility model, the inner wall of the clamping frame is symmetrically provided with two guide grooves, the inner wall of the guide grooves is slidably connected to the outer wall of the lifting plate, one end of the double threaded rod extends out of the outer wall of the clamping frame, and the extended end of the double threaded rod is fixedly connected to a turntable.

[0012] As a preferred embodiment of this utility model, the outer wall of the clamping frame is symmetrically and fixedly connected to two extension frames, the inner wall of the extension frames is fixedly connected to a guide plate, and the bottom end of the exhaust frame is rotatably connected to an exhaust roller.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. Compared with traditional technology, this utility model has an inclined roller and a clamping roller set on the top of the worktable. By using the inclined angle of the inclined roller to change the tension distribution and contact shape of the film material, the adsorption and encapsulation state between the film material and the air is broken, which promotes the efficient escape of hidden air bubbles inside. Then, the clamping roller and the exhaust roller are used for clamping and conveying. At the same time, the air trapped between the layers is expelled by secondary extrusion, and the air is tightly clamped to prevent secondary air entrapment. This greatly reduces the residual air bubble rate of the PET release film after winding, improves the flatness of the film material, achieves efficient air bubble removal, and improves the purity of the film material winding.

[0014] 2. Compared with traditional technology, this utility model has a double threaded rod and a turntable on the top of the clamping frame. The operator can manually rotate the turntable to precisely adjust the clamping state of the exhaust roller and the clamping roller, so as to adapt to the clamping of films of different thicknesses. At the same time, the angle of the tilting roller can be adjusted by the cylinder to achieve flexible flipping of the slider, thereby changing the path angle and tension distribution of the film material, so as to adapt to PET release films of different thicknesses and toughnesses. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of the present utility model; Figure 2 This is a side sectional view of the main structure of this utility model; Figure 3 This is a schematic diagram of the unwinding frame structure of this utility model; Figure 4 This is a side sectional view of the clamping frame connection structure of this utility model; Figure 5 This is a schematic diagram of the winding rack structure of this utility model.

[0016] In the diagram: 1. Workbench; 2. Unwinding frame; 3. Unwinding roller; 4. First gear; 5. Second gear; 6. Motor; 7. Sliding frame; 8. Top pressure roller; 9. Sliding block; 10. Spring; 11. Guide frame; 12. Guide roller; 13. Support leg; 14. Column; 15. Inclined frame; 16. Inclined roller; 17. Hinge leg; 18. Auxiliary leg; 19. Hinge seat; 20. Guide rail plate; 21. Cylinder; 22. Adjusting slider; 23. Clamping frame; 24. Clamping roller; 25. Lifting plate; 26. Guide groove; 27. Exhaust frame; 28. Exhaust roller; 29. ​​Double threaded rod; 2901. Turntable; 30. Threaded slider; 31. Top push rod; 32. Top push block; 33. Extension frame; 34. Guide plate; 35. Rewinding frame; 36. Rewinding roller. 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] like Figures 1 to 5As shown, this utility model provides a PET release film anti-bubble production device, including a workbench 1, an unwinding frame 2 fixedly connected to the top of the workbench 1, an unwinding roller 3 rotatably connected to the top of the unwinding frame 2, a support leg 13 fixedly connected to the upper surface of the workbench 1, a column 14 fixedly connected to the top of the support leg 13, an inclined roller 16 hinged to the top of the column 14, a clamping frame 23 fixedly connected to one end of the workbench 1 near the support leg 13, a clamping roller 24 rotatably connected to the inner wall of the clamping frame 23, and a sliding roller 24 rotatably connected to the inner wall of the clamping frame 23. A lifting plate 25 is dynamically connected, and an exhaust frame 27 is rotatably connected to the bottom end of the lifting plate 25. A double threaded rod 29 is threadedly connected to the top end of the clamping frame 23. Two threaded sliders 30 are symmetrically threaded on the outer wall of the double threaded rod 29. A push rod 31 is hinged to the outer wall of the threaded slider 30. A push block 32 is fixedly connected to the top of the lifting plate 25. The inner wall of the push block 32 is hinged to the bottom end of the push rod 31. A winding frame 35 is fixedly connected to the end of the worktable 1 away from the unwinding frame 2. A winding roller 36 is rotatably connected to the top end of the winding frame 35.

[0019] One end of the unwinding roller 3 extends out of the outer wall of the unwinding frame 2, and the extended end of the unwinding roller 3 is fixedly connected to the first gear 4. The outer wall of the unwinding frame 2 is fixedly connected to the motor 6.

[0020] The output end of the motor 6 is fixedly connected to the second gear 5, which meshes with the first gear 4.

[0021] It should be noted that brackets are fixedly connected to one side of the outer wall of both the unwinding frame 2 and the winding frame 35. The brackets are used to fix and support the motor 6. When the motor 6 is working, it can be driven to rotate by rotating the second gear 5. Then the motor 6 further drives the unwinding roller 3 to rotate. The winding roller 36 is also provided with the same structure as the second gear 5 and the first gear 4 on one side. By starting the motors 6 on both sides to rotate in both directions, the unwinding roller 3 and the winding roller 36 can pull the PET release film to wind up.

[0022] The top ends of the unwinding frame 2 and the winding frame 35 are symmetrically fixedly connected with sliding frames 7. The inner wall of the sliding frame 7 is slidably connected with sliding blocks 9. The inner walls of the two sliding blocks 9 are rotatably connected with top pressure rollers 8. The connection between the inner wall of the sliding frame 7 and the sliding blocks 9 is fixedly connected with springs 10.

[0023] It should be noted that after the unwinding and take-up film is placed on the outer wall of the unwinding roller 3 and the take-up roller 36, the spring 10 will resist the top pressure rollers 8 on both sides from sliding radially towards the outer wall of the unwinding and take-up film through the elastic force. Under the action of the elastic force of the spring 10, the top pressure rollers 8 will continue to maintain radial clamping with the film. The unwinding film will expel internal air bubbles and be transported under the clamping of the top pressure rollers 8. The take-up film can be isolated from air bubbles entering the film under the clamping of the top pressure rollers 8. The clamping of the two top pressure rollers 8 prevents the generation of air bubbles.

[0024] Among them, the outer wall of the unwinding frame 2 is fixedly connected to the guide frame 11, the inner wall of the guide frame 11 is rotatably connected to the guide roller 12, the top end of the support leg 13 is fixedly connected to the guide rail plate 20, the inner wall of the guide rail plate 20 is slidably connected to the adjusting slider 22, the top end of the guide rail plate 20 is fixedly connected to the cylinder 21, and the output end of the cylinder 21 is fixedly connected to the outer wall of the adjusting slider 22.

[0025] The tilting frame 15 is hinged to a hinge leg 17 at the end away from the column 14. The bottom end of the hinge leg 17 is hinged to the outer wall of the adjusting slider 22. An auxiliary leg 18 is hinged to the inner wall of the hinge leg 17. A hinge seat 19 is fixedly connected to the top of the support leg 13. The inner wall of the hinge seat 19 is hinged to the bottom end of the auxiliary leg 18.

[0026] It should be noted that the cylinder 21 is based on the QGA buffer cylinder. A groove is provided on the inner wall of the guide plate 20. The inner wall of the groove is slidably connected to the bottom end of the adjusting slider 22. A connecting shaft is fixedly connected to the outer wall of the adjusting slider 22. The outer wall of the adjusting slider 22 can be hinged to the bottom end of the two hinge legs 17 through the connecting shaft. When the operator starts the cylinder 21, the cylinder 21 pushes the adjusting slider 22 to slide on the inner wall of the guide plate 20 through the output end. Then, the tilting roller 16 is tilted and flipped by using the hinge between the hinge legs 17, the auxiliary legs 18 and the tilting frame 15.

[0027] The clamping frame 23 has two guide grooves 26 symmetrically arranged on its inner wall. The inner wall of the guide groove 26 is slidably connected to the outer wall of the lifting plate 25. One end of the double threaded rod 29 extends out of the outer wall of the clamping frame 23, and the extended end of the double threaded rod 29 is fixedly connected to the turntable 2901.

[0028] Among them, two extension frames 33 are symmetrically fixedly connected to the outer wall of the clamping frame 23, and a guide plate 34 is fixedly connected to the inner wall of the extension frame 33. An exhaust roller 28 is rotatably connected to the bottom end of the exhaust frame 27.

[0029] It should be noted that the lifting plate 25 is guided by the connection of the guide groove 26. The operator can rotate the double threaded rod 29 by rotating the turntable 2901. Two threads with opposite directions and the same pitch are provided on the outer wall of the double threaded rod 29. Each thread is connected to a threaded slider 30. When the double threaded rod 29 rotates, the double threaded rod 29 drives the two threaded limits. The rotation of the two positive and negative threads pushes the two threaded sliders 30 to slide synchronously in the positive and negative directions, thereby pushing the lifting plate 25 to rise and fall. The guide plate 34 is used to guide and transport the film roll.

[0030] Working principle and usage process of this utility model: The specific operation is as follows: The operator needs to place the unwound PET release film on the outer wall of the unwinding roller 3, then place the PET release film to be wound on the outer wall of the winding roller 36, insert one end of the PET release film through the guide roller 12, then through the guide roller 12 and across the surface of the inclined roller 16, and then further through the inclined roller 16 between the exhaust roller 28 and the clamping roller 24. Then, the inserted film will be wound around the winding PET release film on the outer wall of the winding roller 36 under the guidance of the guide plate 34. After the film is placed, the operator needs to activate the cylinder 21. The cylinder 21 pulls the adjusting slider 22 through the output end to slide along the inner wall of the guide rail plate 20. The adjusting slider 22 pulls the bottom of the hinge leg 17 to flip, and the auxiliary leg 18 will flip to support the hinge leg 17 through the hinge. The tilting roller 16 is flipped over. At this time, one end of the tilting roller 16 tilts downward due to the flipping of the hinge leg 17. Then, the operator needs to manually rotate the turntable 2901 to clamp the exhaust roller 28 and the clamping roller 24 on the outer wall of the membrane. When the turntable 2901 rotates, it drives the double threaded rod 29 to rotate synchronously. Through the threaded connection of the double threaded rod 29, it pushes the two threaded sliders 30 to slide in opposite directions. When the threaded sliders 30 slide, they will push the bottom of the push rod 31. After the push rod 31 is subjected to force, it flips over. At the same time, the bottom of the push rod 31 will push the lifting plate 25 through the hinge with the push block 32. After the lifting plate 25 is subjected to force, it drives the exhaust roller 28 to slide along the inner wall of the guide groove 26 towards the clamping roller 24 and the top of the membrane. The membrane is clamped between the clamping roller 24 and the exhaust roller 28 through sliding.

[0031] After the film winding position is processed, the operator starts motor 6. Motor 6 drives the second gear 5 to rotate through its output end. The second gear 5, through meshing, drives the first gear 4 to rotate. The first gear 4 drives the unwinding roller 3 to rotate. At the same time, the rotation of the other end of the winding roller 36 winds up one end of the film. The rotation of the unwinding roller 3 unwinds the film. During the unwinding process, the radius of the film roll changes accordingly. At this time, the spring 10 uses its elasticity to radially resist the sliding block 9 against the surface of the rolled film. Simultaneously, the sliding block 9 drives the top pressure roller 8 to radially press against the surface of the rolled film. The continuous pressing of the sliding block 9 removes air bubbles and isolates air from entering the wound film to prevent the formation of air bubbles. After passing through the unwinding roller 3, the film is guided and tensioned by the guide roller 12 and conveyed to the surface of the inclined roller 16. The inclination of the inclined roller 16 changes the tension distribution of the PET release film. The contact pattern and path angle break the adsorption and encapsulation state between the PET release film and the air, promoting the efficient discharge of air adhering to the inside or surface of the film. After leaving the inclined roller 16, the film will come between the clamping roller 24 and the exhaust roller 28. Under the clamping and conveying of the clamping roller 24 and the exhaust roller 28, the air adhering to the inside, surface or between layers of the film is discharged, while the secondary air entrapment is suppressed. Finally, the film will be conveyed to the winding roller 36 under the guidance of the guide plate 34 through the clamping roller 24 and the exhaust roller 28, and is wound up under the rotation traction of the winding roller 36.

Claims

1. A PET release film anti-bubble production device, comprising a workbench (1), characterized in that: The top of the workbench (1) is fixedly connected to an unwinding frame (2), and the top of the unwinding frame (2) is rotatably connected to an unwinding roller (3). The upper surface of the workbench (1) is fixedly connected to a support leg (13), and the top of the support leg (13) is fixedly connected to a column (14). The top of the column (14) is hinged to an inclined roller (16). The end of the workbench (1) near the support leg (13) is fixedly connected to a clamping frame (23). The inner wall of the clamping frame (23) is rotatably connected to a clamping roller (24), and the inner wall of the clamping frame (23) is slidably connected to a lifting mechanism. The bottom end of the lifting plate (25) is rotatably connected to an exhaust frame (27), the top end of the clamping frame (23) is threadedly connected to a double threaded rod (29), the outer wall of the double threaded rod (29) is symmetrically threaded with two threaded sliders (30), the outer wall of the threaded sliders (30) is hinged to a push rod (31), the top of the lifting plate (25) is fixedly connected to a push block (32), the bottom end of the push rod (31) is hinged to the inner wall of the push block (32), and the end of the worktable (1) away from the unwinding frame (2) is fixedly connected to a winding frame (35).

2. The PET release film anti-bubble production device according to claim 1, characterized in that: One end of the unwinding roller (3) extends out of the outer wall of the unwinding frame (2), and the extended end of the unwinding roller (3) is fixedly connected to a first gear (4), and the outer wall of the unwinding frame (2) is fixedly connected to a motor (6).

3. The PET release film anti-bubble production device according to claim 2, characterized in that: The output end of the motor (6) is fixedly connected to a second gear (5), which meshes with the first gear (4).

4. The PET release film anti-bubble production device according to claim 1, characterized in that: The top ends of the unwinding frame (2) and the winding frame (35) are symmetrically fixedly connected with sliding frames (7). The inner wall of the sliding frame (7) is slidably connected with sliding blocks (9). The inner walls of the two sliding blocks (9) are rotatably connected with top pressure rollers (8). The connection between the inner wall of the sliding frame (7) and the sliding blocks (9) is fixedly connected with springs (10).

5. The PET release film anti-bubble production device according to claim 1, characterized in that: The outer wall of the unwinding frame (2) is fixedly connected to a guide frame (11), the inner wall of the guide frame (11) is rotatably connected to a guide roller (12), the top end of the support leg (13) is fixedly connected to a guide rail plate (20), the inner wall of the guide rail plate (20) is slidably connected to an adjusting slider (22), the top end of the guide rail plate (20) is fixedly connected to a cylinder (21), and the output end of the cylinder (21) is fixedly connected to the outer wall of the adjusting slider (22).

6. The PET release film anti-bubble production device according to claim 1, characterized in that: The tilting frame (15) is hinged to a hinge leg (17) at one end away from the column (14). The bottom end of the hinge leg (17) is hinged to the outer wall of the adjusting slider (22). An auxiliary leg (18) is hinged to the inner wall of the hinge leg (17). A hinge seat (19) is fixedly connected to the top end of the support leg (13). The inner wall of the hinge seat (19) is hinged to the bottom end of the auxiliary leg (18).

7. The PET release film anti-bubble production device according to claim 1, characterized in that: The inner wall of the clamping frame (23) is symmetrically provided with two guide grooves (26). The inner wall of the guide groove (26) is slidably connected to the outer wall of the lifting plate (25). One end of the double threaded rod (29) extends out of the outer wall of the clamping frame (23). The extended end of the double threaded rod (29) is fixedly connected to a turntable (2901).

8. A PET release film anti-bubble production device according to claim 7, characterized in that: Two extension frames (33) are symmetrically fixedly connected to the outer wall of the clamping frame (23), and a guide plate (34) is fixedly connected to the inner wall of the extension frame (33). An exhaust roller (28) is rotatably connected to the bottom end of the exhaust frame (27), and a take-up roller (36) is rotatably connected to the top end of the take-up frame (35).

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