A cutting device for liquid crystal panel optical film

Abstract

The application belongs to the technical field of optical film cutting, and discloses a cutting device for liquid crystal panel optical film, which comprises a rack, a film placement area is arranged on the rack, one first linear module is arranged on each side of the film placement area, a second linear module is arranged to slide on the two first linear modules, a sliding seat is arranged to slide on the second linear module, a mounting plate is vertically arranged on one side of the sliding seat, a vertical electric sliding table is arranged on the mounting plate, a sliding plate is arranged to slide on the electric sliding table, a vertical laser head is arranged on the sliding plate, a laser, a four-dimensional adjusting frame, a two-dimensional adjusting frame and a 45-degree reflecting frame are sequentially arranged on the sliding seat, and the laser emitted by the laser passes through the four-dimensional adjusting frame, the two-dimensional adjusting frame and the 45-degree reflecting frame to enter the laser head to cut the optical film. The first linear module, the second linear module and the electric sliding table drive the laser head to move in X, Y and Z directions, automatic cutting is realized, and the cutting precision and the cutting efficiency are improved.

Description

Technical Field

[0001] This utility model relates to the field of optical film technology, and in particular to a cutting device for optical films of liquid crystal panels. Background Technology

[0002] Optical films for LCD panels are an important component of the backlight system of LCD displays. LCD screens themselves do not emit light and need to be illuminated by the backlight system. The backlight system converts the light source into a surface light source through a light guide plate. Optical films can play a role in uniformly distributing light and converging light at a wide angle for frontal viewing. In order to make the picture clearer and more accurate, multiple optical films with different functions are usually placed on the light guide plate. This has greatly increased the demand for optical films and placed higher requirements on their cutting and processing equipment.

[0003] Existing optical film cutting devices mainly rely on manual operation, requiring manual measurement and positioning before quantitative cutting with cutting tools. The manual operation process is cumbersome, which not only affects cutting efficiency but also makes it difficult to guarantee cutting accuracy, thus failing to meet the requirements of high-precision cutting. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides a cutting device for optical films of liquid crystal panels.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a cutting device for optical films of liquid crystal panels, comprising a frame, a film placement area on the frame, a first linear module on each side of the film placement area, a second linear module slidably disposed on the two first linear modules, a sliding seat slidably disposed on the second linear module, a mounting plate vertically arranged on one side of the sliding seat, a vertically arranged electric slide table on the mounting plate, a sliding plate slidably disposed on the electric slide table, a vertically arranged laser head disposed on the sliding plate, and a laser, a four-dimensional adjustment frame, a two-dimensional adjustment frame, and a 45° reflection frame arranged sequentially on the sliding seat, wherein the laser emitted by the laser enters the laser head through the four-dimensional adjustment frame, the two-dimensional adjustment frame, and the 45° reflection frame to cut the optical film.

[0006] By adopting the above technical solution, a first linear module, a second linear module, a sliding seat, a mounting plate, an electric slide, and a sliding plate are set up, enabling the laser head to move in the X, Y, and Z directions, thereby controlling the cutting path. A laser, a four-dimensional adjustment frame, a two-dimensional adjustment frame, and a 45° reflector frame are set up. The laser emitted by the laser is coarsely positioned by the four-dimensional adjustment frame, then the laser beam is finely angled by the two-dimensional adjustment frame, and finally the laser is reflected by the 45° reflector frame to the laser head to cut the optical film. In this way, as long as the movement path of the laser head is set according to the shape of the optical film to be cut, automatic cutting can be achieved, improving cutting accuracy and cutting efficiency.

[0007] Furthermore, a connecting seat is provided on the sliding plate, and a dust collection hood with an opening facing downwards is provided on the connecting seat. A through hole is provided on the top of the dust collection hood. The laser head is provided on the connecting seat and its lower end passes through the through hole and is arranged inside the dust collection hood. A suction pipe communicating with the inside of the hood is also provided on the side of the dust collection hood. The end of the suction pipe away from the dust collection hood is connected to a vacuum fan.

[0008] By adopting the above technical solution, dust collection hoods and suction pipes are installed to remove the dust generated during cutting, thus preventing dust from adhering to the surface of the optical film and affecting its surface quality.

[0009] Furthermore, an L-shaped support is provided on the sliding plate, and a lifting plate is vertically slidably mounted on the L-shaped support. A ring light source is provided at the bottom end of the lifting plate, and an adjustment frame is vertically slidably mounted on the upper part of the lifting plate. An adjustment camera is mounted on the adjustment frame, and the lens of the adjustment camera is located inside the ring hole of the ring light source.

[0010] By adopting the above technical solution, setting up an L-shaped support, lifting plate, ring light source and adjusting camera, and using high-precision visual inspection and positioning, the accuracy of the cutting path and the stability of the diaphragm quality are ensured.

[0011] Furthermore, a fixing plate is provided on the L-shaped support, and a fixing hole is provided on the fixing plate. A vertically arranged first strip hole is provided on the lifting plate, and the first strip hole and the fixing hole are locked together by screws.

[0012] By adopting the above technical solution, a fixed plate, a fixed hole, and a first strip hole are set. The position of the lifting plate on the fixed plate is adjusted by changing the position of the first strip hole relative to the fixed hole, thereby adjusting the height of the lifting plate.

[0013] Furthermore, the upper part of the lifting plate is provided with several vertically spaced connecting holes, and the adjusting frame is provided with a second vertically arranged strip hole, which is locked to the connecting holes by screws.

[0014] By adopting the above technical solution, a connecting hole and a second strip hole are provided. The position of the adjusting frame on the lifting plate is adjusted by changing the position of the second strip hole relative to the connecting hole, thereby adjusting the height of the adjusting frame.

[0015] In summary, this utility model has the following beneficial effects: In this application, by setting a first linear module, a second linear module, a sliding seat, a mounting plate, an electric slide, and a sliding plate, the laser head can move in the X, Y, and Z directions, thereby controlling the cutting path; by setting a laser, a four-dimensional adjustment frame, a two-dimensional adjustment frame, and a 45° reflector, the laser emitted by the laser is coarsely positioned by the four-dimensional adjustment frame, then the laser beam is finely angled by the two-dimensional adjustment frame, and then the laser is reflected by the 45° reflector to the laser head to cut the optical film. In this way, as long as the movement path of the laser head is set according to the shape of the optical film to be cut, automatic cutting can be achieved, which improves the cutting accuracy and cutting efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the protective cover hidden in an embodiment of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the sliding seat and its components according to an embodiment of this utility model;

[0019] Figure 4 This is a structural schematic diagram of the sliding seat and its components from another angle according to an embodiment of the present invention;

[0020] Figure 5 This is a schematic diagram of the structure of the L-shaped support, lifting plate, ring light source, and adjustment camera in an embodiment of this utility model;

[0021] Figure 6 This is a structural schematic diagram of the L-shaped support and lifting plate portion of this utility model embodiment;

[0022] Figure 7 This is a schematic diagram of the structure of the adjustment frame and the adjustment camera part in an embodiment of this utility model.

[0023] In the diagram: 10. Frame; 11. Diaphragm placement area; 12. First linear module; 13. Second linear module; 20. Sliding seat; 21. Mounting plate; 22. Electric slide; 23. Laser; 24. Four-dimensional adjustment frame; 25. Two-dimensional adjustment frame; 26. 45° reflector; 30. Sliding plate; 31. Laser head; 32. Connecting seat; 33. Dust collection hood; 331. Dust suction pipe; 34. L-shaped support; 35. Lifting plate; 351. First strip hole; 352. Connecting hole; 36. Ring light source; 37. Adjustment frame; 371. Second strip hole; 38. Adjustment camera; 39. Fixing plate; 391. Fixing hole. Detailed Implementation

[0024] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0025] like Figure 1-7 As shown in the illustration, this application discloses a cutting device for optical films of liquid crystal panels, including a frame 10. A film placement area 11 is provided on the frame 10, where a whole optical film is placed. A first linear module 12 is provided on each side of the film placement area 11. A second linear module 13 is slidably disposed on both first linear modules 12, and the length direction of the second linear module 13 is perpendicular to that of the first linear modules 12. A sliding seat 20 is slidably disposed on the second linear module 13, allowing the sliding seat 20 to move in the X and Y directions. A mounting plate 21 is vertically arranged on one side of the sliding base 20. A vertically arranged electric slide 22 is mounted on the mounting plate 21. A sliding plate 30 is slidably mounted on the electric slide 22, and a vertically arranged laser head 31 is mounted on the sliding plate 30. The laser head 31 contains a focusing lens to focus the collimated laser beam into a high-energy spot. This high-energy-density beam instantly melts or vaporizes the optical film, achieving non-contact, low-stress cutting and avoiding tearing or indentation at the film edges caused by traditional mechanical cutting. The electric slide 22 drives the laser head 31 to move in the Z-axis direction, enabling movement in the X, Y, and Z directions. This allows for cutting of the optical film by setting the movement path of the laser head 31, eliminating the need for manual intervention and significantly improving cutting accuracy and efficiency.

[0026] A laser 23, a four-dimensional adjustment frame 24, a two-dimensional adjustment frame 25, and a 45° reflector frame 26 are sequentially arranged on the sliding base 20. The laser emitted by the laser 23 enters the laser head 31 through the four-dimensional adjustment frame 24, the two-dimensional adjustment frame 25, and the 45° reflector frame 26 to cut the optical film. Specifically, the laser 23 is used to generate and emit laser light. The four-dimensional adjustment frame 24 includes four degrees of freedom adjustment: X-axis translation, Y-axis translation, Z-axis translation, and rotation around the Z-axis. It is used for initial alignment of the laser beam, coarse positioning of the laser beam, and ensuring that the central axis of the laser beam after output from the laser 23 coincides with the reference axis of the subsequent optical path. This compensates for installation errors of the laser 23 or minor offsets after long-term use, and reduces cutting errors caused by light source offset. The two-dimensional adjustment frame 25 includes two degrees of freedom for X-axis and Y-axis rotation, used for fine-tuning the laser beam angle and correcting any minor deflections remaining in the four-dimensional adjustment frame 24. This ensures the laser beam propagates strictly parallel to the optical path reference direction, avoiding focus point shift caused by beam tilt and laying the foundation for subsequent focusing accuracy. The 45° reflector frame 26 houses a reflector and fine-tuning mechanism positioned at a 45° angle. This mechanism allows for precise control of the reflector's pitch and deflection angles. It is used to vertically redirect and reflect the horizontally propagating laser beam into the laser head 31, thereby changing the optical path direction to suit the equipment's spatial layout. Simultaneously, through angle fine-tuning, it ensures the reflected laser beam is strictly perpendicular to the plane of the diaphragm placement area 11, guaranteeing the verticality of laser cutting.

[0027] During setup, a connecting seat 32 is provided on the sliding plate 30, and a dust collection hood 33 with its opening facing downwards is provided on the connecting seat 32. A through hole is provided on the top of the dust collection hood 33. The laser head 31 is located on the connecting seat 32, and its lower end passes through the through hole and is arranged inside the dust collection hood 33. A suction pipe 331 communicating with the inside of the hood is also provided on the side of the dust collection hood 33. The end of the suction pipe 331 away from the dust collection hood 33 is connected to a vacuum fan. Through the setting of the dust collection hood 33 and the suction pipe 331, the dust generated during cutting is promptly sucked away by negative pressure, avoiding the dust (mainly film substrate debris, coating particles, etc.) generated during cutting from adhering to the surface of the optical film and affecting the quality of the optical film. The amount of dust residue on the surface of the optical film can be controlled to <1 particle per square centimeter, meeting the cleanliness requirements of high-precision display devices.

[0028] An L-shaped support 34 is provided on the sliding plate 30. A lifting plate 35 is vertically slidably mounted on the L-shaped support 34. A ring light source 36 is provided at the bottom of the lifting plate 35. An adjustment frame 37 is vertically slidably mounted on the upper part of the lifting plate 35. An adjustment camera 38 is mounted on the adjustment frame 37, and the lens of the adjustment camera 38 is located inside the ring hole of the ring light source 36. The function of the ring light source 36 is to form a ring-shaped, multi-angle, uniform illumination, which can control the reflected light outside the field of view of the lens of the adjustment camera 38, thereby improving the grayscale contrast of the film edge and positioning points and ensuring that the image is clear and distinguishable. The function of the adjustment camera 38 is to capture film information through optical imaging, accurately locate the cutting reference, and quickly scan the film surface before and during cutting to identify defects such as bubbles, scratches, foreign objects, and uneven coating. Through the cooperation of the ring light source 36 and the adjustment camera 38, high-precision visual inspection and positioning are achieved during the cutting process, ensuring the accuracy of the cutting path and the stability of the film quality.

[0029] Specifically, a fixing plate 39 is provided on the L-shaped support 34, and a fixing hole 391 is provided on the fixing plate 39. A vertically arranged first strip hole 351 is correspondingly provided on the lifting plate 35. The first strip hole 351 and the fixing hole 391 are locked together by screws. The position of the lifting plate 35 on the fixing plate 39 is adjusted by changing the position of the first strip hole 351 relative to the fixing hole 391, thereby adjusting the height of the lifting plate 35 and thus the height of the ring light source 36.

[0030] A plurality of vertically spaced connecting holes 352 are provided on the upper part of the lifting plate 35, and a second vertically arranged strip hole 371 is provided on the adjusting frame 37. The second strip hole 371 and the connecting holes 352 are locked together by screws. The position of the adjusting frame 37 on the lifting plate 35 is adjusted by changing the position of the second strip hole 371 relative to the connecting holes 352, thereby adjusting the height of the adjusting frame 37 and thus adjusting the height of the adjusting camera 38.

[0031] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A cutting device for optical films of liquid crystal panels, characterized in that: The device includes a frame (10), on which a diaphragm placement area (11) is provided. On each side of the diaphragm placement area (11), a first linear module (12) is provided. A second linear module (13) is slidably disposed on both first linear modules (12). A sliding seat (20) is slidably disposed on the second linear module (13). A mounting plate (21) is vertically arranged on one side of the sliding seat (20). A vertically arranged electric slide (22) is provided on the mounting plate (21). A sliding plate (30) is slidably arranged on the electric sliding table (22). A vertically arranged laser head (31) is arranged on the sliding plate (30). A laser (23), a four-dimensional adjustment frame (24), a two-dimensional adjustment frame (25), and a 45° reflection frame (26) are arranged sequentially on the sliding seat (20). The laser emitted by the laser (23) enters the laser head (31) through the four-dimensional adjustment frame (24), the two-dimensional adjustment frame (25), and the 45° reflection frame (26) to cut the optical film.

2. The cutting device for optical films of liquid crystal panels according to claim 1, characterized in that: A connecting seat (32) is provided on the sliding plate (30), and a dust collection hood (33) with an opening facing downwards is provided on the connecting seat (32). A through hole is provided on the top of the dust collection hood (33). The laser head (31) is provided on the connecting seat (32) and its lower end passes through the through hole and is arranged inside the dust collection hood (33). A suction pipe (331) communicating with the inside of the hood is also provided on the side of the dust collection hood (33). The end of the suction pipe (331) away from the dust collection hood (33) is connected to the suction fan.

3. The cutting device for optical films of liquid crystal panels according to claim 1, characterized in that: An L-shaped support (34) is provided on the sliding plate (30), and a lifting plate (35) is vertically slidably provided on the L-shaped support (34). A ring light source (36) is provided at the bottom of the lifting plate (35), and an adjustment frame (37) is vertically slidably provided on the upper part of the lifting plate (35). An adjustment camera (38) is provided on the adjustment frame (37), and the lens of the adjustment camera (38) is located in the ring hole of the ring light source (36).

4. The cutting device for optical films of liquid crystal panels according to claim 3, characterized in that: The L-shaped support (34) is provided with a fixing plate (39), the fixing plate (39) is provided with a fixing hole (391), and the lifting plate (35) is provided with a vertically arranged first strip hole (351), the first strip hole (351) and the fixing hole (391) are locked together by screws.

5. The cutting device for an optical film of a liquid crystal panel according to claim 4, characterized in that: The upper part of the lifting plate (35) has several vertically spaced connecting holes (352), and the adjusting frame (37) has a vertically arranged second strip hole (371). The second strip hole (371) and the connecting hole (352) are locked together by screws.

Images