Film cutting device for backlight production

Abstract

The utility model relates to the technical field of film cutting device, disclose a film cutting device for back light source production, including support base, in the utility model, the upper surface fixedly connected with work table of support base, the upper portion one side of support base is provided with unwinding roller shaft, the upper portion other side of support base is provided with winding roller shaft, the both sides of work table outer wall are provided with clamping mechanism, the clamping mechanism includes clamping roller shaft, the both ends of clamping roller shaft are slidably connected with support frame, and the inner wall fixedly connected in work table outer wall both sides. In the utility model, the back light film of winding into the reel is placed on unwinding roller shaft, and the back light film passes through above work table and is adhered on winding roller shaft, on the top of four support frames of work table both sides, the height of two clamping roller shafts can be adjusted by rotating knob, not only can the back light film of winding into the reel be clamped, but also the back light film to be cut part can be clamped according to the back light film of different thicknesses by adjusting knob.

Description

Technical Field

[0001] This utility model relates to the field of film cutting device technology, and in particular to a film cutting device for backlight production. Background Technology

[0002] As is well known, a backlight is a light source located behind a liquid crystal display (LCD). Its luminous effect directly impacts the visual effect of the liquid crystal display module (LCM). The LCD itself does not emit light; it displays graphics or is the result of its modulation of light. The film-cutting equipment used in backlight production is a highly precise and automated specialized device. Its core function is to slit large rolls of optical functional films (such as brightness enhancement films, diffusion films, reflective films, and light guide plate protective films) at high speed and without damage, according to the precise dimensions designed for the backlight module. It is a crucial link in the automated backlight production line, directly affecting the quality, yield, and production efficiency of the final display product. This equipment typically employs laser cutting or precision rotary die-cutting technology and integrates a high-precision tension control system, an automatic edge correction system, and dust and static electricity removal units. This ensures that the film remains flat, scratch-free, and contaminated during cutting and transport, meeting micron-level dimensional tolerance requirements, laying a solid foundation for the assembly of high-quality backlight modules.

[0003] Existing film cutting equipment for backlight production involves manually dividing the backlight film on the roll before placing the entire backlight film on a workbench and fixing it manually. However, this manual division and clamping of the backlight film on the roll is labor-intensive, inefficient, and poses safety hazards, resulting in poor reliability. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a film cutting device for backlight production, which aims to improve the problem of the cumbersome process of first cutting and then manually clamping large rolls of backlight film, which wastes manpower.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a film cutting device for backlight production, comprising a support base, a worktable fixedly connected to the upper surface of the support base, an unwinding roller shaft disposed on one side of the upper part of the support base, a take-up roller shaft disposed on the other side of the upper part of the support base, and clamping mechanisms disposed on both sides of the outer wall of the worktable.

[0006] The clamping mechanism includes a clamping roller shaft, with support frames slidably connected to both ends of the clamping roller shaft. The bottom of the support frame is fixedly connected to the top of the support base, and the inner wall of the support frame is fixedly connected to both sides of the outer wall of the worktable. A first sliding groove is provided on the top of the support frame, and the two ends of the clamping roller shaft are slidably connected inside the first sliding groove. A stud is threadedly connected to the top of the support frame, and the bottom of the stud is rotatably connected to one end of the clamping roller shaft. Cutting mechanisms are provided on both sides of the outer wall of the worktable, and a power mechanism is provided at one end of the support base.

[0007] Furthermore, the cutting mechanism includes a blade, with blade holders slidably connected to both ends of the blade. The lower inner wall of the blade holder is fixedly connected to both sides of the outer wall of the workbench. A cylinder is fixedly connected to the top of the blade holder. A second sliding groove is provided on the upper inner wall of the blade holder. The output end of the cylinder is connected to the upper surface of the blade. Both ends of the blade are slidably connected inside the second sliding groove. A handle groove is provided on the lower side of the blade. A blade hole is provided on the outer side of the lower part of the blade. A bolt is threaded into the blade hole.

[0008] Furthermore, the power mechanism includes a motor, which is fixedly connected to one end of the support base. A drive wheel is fixedly connected to the output end of the motor, and a driven wheel is fixedly connected to one end of the take-up roller shaft. A belt drives the drive wheel and the driven wheel.

[0009] Furthermore, the four corners of the bottom of the support base are fixedly connected with anti-slip feet.

[0010] Furthermore, a tool groove is provided on the middle side of the upper part of the worktable.

[0011] Furthermore, a knob is fixedly connected to one end of the stud.

[0012] Furthermore, a rubber gasket is fixedly connected to the handle groove, and a blade head is fixedly connected to the rubber gasket.

[0013] Furthermore, a fixing block is fixedly connected to one side of the motor, and the bottom of the fixing block is fixedly connected to the top of the support base.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, the backlight film rolled into a roll is placed on the unwinding roller. The backlight film passes over the worktable and adheres to the take-up roller. To cut the backlight film, it must first be clamped. At the top of the four support frames on both sides of the worktable, the height of the two clamping rollers can be adjusted by turning the knob. This not only allows for clamping of the backlight film rolled into a roll, but also allows for clamping of the part of the backlight film to be cut according to the thickness of the backlight film.

[0016] 2. In this utility model, the cutter head is fixed by bolts passing through the cutter holes on the cutter body. The cutter head can be disassembled and replaced according to different cutting needs. There is a rubber gasket between the cutter head and the cutter body. When cutting, the cutter head and the cutter body move downward and close with the cutter groove. The rubber gasket plays a buffering role, reducing the wear of the cutter head and increasing the service life of the cutter head. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the film cutting device for backlight production proposed in this utility model.

[0018] Figure 2 This is a schematic diagram of the support frame of the film cutting device for backlight production proposed in this utility model;

[0019] Figure 3 This is a schematic diagram of the workbench portion of the film-cutting device for backlight production proposed in this utility model.

[0020] Figure 4 This is a schematic diagram of the blade portion of the film-cutting device for backlight production proposed in this utility model;

[0021] Figure 5 for Figure 1 Enlarged view of point A in the image.

[0022] Legend:

[0023] 1. Support base; 2. Unwinding roller shaft; 3. Clamping roller shaft; 4. Support frame; 5. Knob; 6. Worktable; 7. Tool holder; 8. Tool groove; 9. Cylinder; 10. Tool body; 11. Tool head; 12. Rewinding roller shaft; 13. Anti-slip feet; 14. First slide groove; 15. Stud; 16. Second slide groove; 17. Tool hole; 18. Tool holder groove; 19. Bolt; 20. Rubber gasket; 21. Belt; 22. Motor; 23. Drive wheel; 24. Driven wheel; 25. Fixing block. Detailed Implementation

[0024] 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.

[0025] Reference Figures 1-2This utility model provides an embodiment of a film cutting device for backlight production, comprising a support base 1 that supports the entire device. A worktable 6 is fixedly connected to the upper surface of the support base 1. The backlight film to be cut is cut on the worktable 6. An unwinding roller 2 is provided on one side of the upper part of the support base 1, and the backlight film roll is placed on the unwinding roller 2. A take-up roller 12 is provided on the other side of the upper part of the support base 1. The backlight film passes over the worktable 6 and adheres to the take-up roller 12. Anti-slip feet 13 are fixedly connected to the four corners of the bottom of the support base 1 to prevent the film cutting device from sliding. A knife groove 8 is provided on the middle side of the upper part of the worktable 6. The knife groove 8 closes with the knife during cutting, making the cutting more precise. Clamping mechanisms are provided on both sides of the outer wall of the worktable 6.

[0026] The clamping mechanism includes a clamping roller shaft 3, with support frames 4 slidably connected to both ends of the clamping roller shaft 3. The bottom of the support frame 4 is fixedly connected to the top of the support base 1, and the inner wall of the support frame 4 is fixedly connected to both sides of the outer wall of the worktable 6. A first sliding groove 14 is provided on the top of the support frame 4, and the two ends of the clamping roller shaft 3 are slidably connected inside the first sliding groove 14. The clamping roller shaft 3 can slide up and down along the first sliding groove 14. A stud 15 is threadedly connected to the top of the support frame 4, and the bottom of the stud 15 is rotatably connected to one end of the clamping roller shaft 3. A knob 5 is fixedly connected to one end of the stud 15. The height of the clamping roller shaft 3 can be adjusted by rotating the stud 15 through the knob 5. The clamping roller shaft 3 can be lowered to accommodate backlight films of different thicknesses, so that it can work with the worktable 6 to clamp the backlight film. Cutting mechanisms are provided on both sides of the outer wall of the worktable 6, and a power mechanism is provided at one end of the support base 1.

[0027] Reference Figures 1-5 The cutting mechanism includes a blade 10, which is the main body of the cutting mechanism. A blade holder 7 is slidably connected to both ends of the blade 10. The lower inner wall of the blade holder 7 is fixedly connected to both sides of the outer wall of the worktable 6. A cylinder 9 is fixedly connected to the top of the blade holder 7. A second sliding groove 16 is provided on the upper inner wall of the blade holder 7. The output end of the cylinder 9 is connected to the upper surface of the blade 10, allowing the cylinder 9 to push the blade 10 up and down. The two ends of the blade 10 are slidably connected inside the second sliding groove 16, meaning the blade 10 is fixed inside the blade holder 7 via the second sliding groove 16 and can only slide up and down. This makes the cutting more stable. The blade body 10 has a handle groove 18 on the lower side and a blade hole 17 on the lower outer side of the blade body 10. A bolt 19 is threaded inside the blade hole 17. A rubber gasket 20 is fixedly connected to the handle groove 18. The blade head 11 is fixedly connected to the rubber gasket 20. The blade head 11 can be replaced according to different cutting conditions. The blade head 11 and the rubber gasket 20 are fixed by the bolt 19. The rubber gasket 20 plays a buffering role, which can reduce the wear of the blade head 11 during the cutting process and increase the service life of the blade head 11.

[0028] Reference Figures 1-5The power mechanism includes a motor 22, which is the power source for the rotation of the take-up roller shaft 12. The motor 22 is fixedly connected to one end of the support base 1. The output end of the motor 22 is fixedly connected to a drive wheel 23, which drives the drive wheel 23 to rotate. One end of the take-up roller shaft 12 is fixedly connected to a driven wheel 24. A belt 21 is connected between the drive wheel 23 and the driven wheel 24. The drive wheel 23 drives the driven wheel 24 to rotate through the belt 21. The driven wheel 24 drives the take-up roller shaft 12 to rotate. The take-up roller shaft 12 drives the backlight film to rotate forward. A fixing block 25 is fixedly connected to one side of the motor 22. The bottom of the fixing block 25 is fixedly connected to the top of the support base 1, making the motor 22 more stable.

[0029] Working principle: The support base 1 has four anti-slip feet 13 at the bottom. The worktable 6 is above the support base 1. The backlight film roll is placed on the unwinding roller 2. The backlight film passes over the worktable 6 and adheres to the take-up roller 12. The support base 1 is fixed to the motor 22 by the fixing block 25. The motor 22 starts and drives the drive wheel 23 to rotate. The drive wheel 23 drives the driven wheel 24 to rotate through the belt 21. The driven wheel 24 rotates together with the take-up roller 12, so that the backlight film is rolled onto the take-up roller 12. The support base 1 has four support frames 4 at both ends of the worktable 6. Each of the four support frames 4 has a first sliding groove 14. The top of the support frame 4 has a hole with threads inside. The stud 15 is inside the hole at the top of the support frame 4. The height can be adjusted by rotating it. The bottom of the stud 15 is rotatably connected to the clamping roller 3. The clamping roller 3 is rotated by the knob 5. The moving stud 15 can be adjusted in height to accommodate backlight films of different thicknesses. The clamping roller 3 can be lowered to work with the worktable 6 to clamp the backlight film. The support base 1 and the two sides of the worktable 6 are fixed with the blade holder 7. The blade holder 7 has a second sliding groove 16 on its inner side, through which the blade body 10 can move up and down. There is a blade handle groove 18 below the blade body 10, and a blade hole 17 is opened below the blade body 10. The blade head 11 and the rubber pad 20 are fixed by bolts 19, so that the blade head 11 can be replaced according to different cutting conditions. The rubber pad 20 plays a buffering role. There is a blade groove 8 on the top of the worktable 6 and a cylinder 9 on the top of the blade holder 7. The cylinder 9 pushes the blade body 10 and the blade head 11 downward until they close with the blade groove 8, completing the cutting. After the cutting is completed, the take-up roller 12 continues to move, driving the backlight film forward until the next cutting.

[0030] 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 film cutting device for backlight production, comprising a support base (1), characterized in that: A worktable (6) is fixedly connected to the upper surface of the support base (1). A unwinding roller (2) is provided on one side of the upper part of the support base (1), and a take-up roller (12) is provided on the other side of the upper part of the support base (1). Clamping mechanisms are provided on both sides of the outer wall of the worktable (6). The clamping mechanism includes a clamping roller shaft (3), with a support frame (4) slidably connected to both ends of the clamping roller shaft (3). The bottom of the support frame (4) is fixedly connected to the top of the support base (1). The inner wall of the support frame (4) is fixedly connected to both sides of the outer wall of the workbench (6). A first sliding groove (14) is provided on the top of the support frame (4). The first sliding groove (14) is slidably connected to both ends of the clamping roller shaft (3). A stud (15) is threadedly connected to the top of the support frame (4). The bottom of the stud (15) is rotatably connected to one end of the clamping roller shaft (3). A cutting mechanism is provided on both sides of the outer wall of the workbench (6). A power mechanism is provided at one end of the support base (1).

2. The film cutting device for backlight production according to claim 1, characterized in that: The cutting mechanism includes a blade (10), with a blade holder (7) slidably connected to both ends of the blade (10). The lower inner wall of the blade holder (7) is fixedly connected to both sides of the outer wall of the worktable (6). A cylinder (9) is fixedly connected to the top of the blade holder (7). A second sliding groove (16) is provided on the upper inner wall of the blade holder (7). The output end of the cylinder (9) is connected to the upper surface of the blade (10). Both ends of the blade (10) are slidably connected inside the second sliding groove (16). A handle groove (18) is provided on the lower side of the blade (10). A blade hole (17) is provided on the lower outer side of the blade (10). A bolt (19) is threadedly connected inside the blade hole (17).

3. The film cutting device for backlight production according to claim 1, characterized in that: The power mechanism includes a motor (22), which is fixedly connected to one end of the support base (1). The output end of the motor (22) is fixedly connected to a drive wheel (23), and one end of the take-up roller shaft (12) is fixedly connected to a driven wheel (24). A belt (21) is used to drive the drive wheel (23) and the driven wheel (24).

4. The film cutting device for backlight production according to claim 1, characterized in that: The support base (1) has anti-slip feet (13) fixedly connected to the four corners of its bottom.

5. The film cutting device for backlight production according to claim 1, characterized in that: The workbench (6) has a knife groove (8) on the upper middle side.

6. The film cutting device for backlight production according to claim 1, characterized in that: A knob (5) is fixedly connected to one end of the stud (15).

7. The film cutting device for backlight production according to claim 2, characterized in that: A rubber gasket (20) is fixedly connected to the handle groove (18), and a blade head (11) is fixedly connected to the rubber gasket (20).

8. The film cutting device for backlight production according to claim 3, characterized in that: A fixing block (25) is fixedly connected to one side of the motor (22), and the bottom of the fixing block (25) is fixedly connected to the top of the support base (1).

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