A cutting apparatus for edge trimming of liquid crystal panel

Abstract

The application discloses a kind of cutting equipment for liquid crystal panel edge regularity, it is related to liquid crystal panel processing technical field, specifically a kind of cutting equipment for liquid crystal panel edge regularity, including laser cutting machine body and liquid crystal panel body, the liquid crystal panel body is placed on laser cutting machine body, laser cutting machine body is detachably connected with the cleaning brush located above the liquid crystal panel body.The cutting equipment for liquid crystal panel edge regularity, through the cooperation between laser cutting machine body, liquid crystal panel body, cleaning brush and scrap collecting hopper, utilize cleaning brush to clean the dust, chippings and other impurities on the surface of liquid crystal panel in real time, and collect and discharge the impurities by scrap collecting hopper, effectively avoid the impurities adhering to the surface of panel to cause shielding or interference to laser cutting path, so as to significantly improve the precision of laser cutting and edge regularity, reduce panel edge edge collapse, size deviation and other adverse phenomena, improve the quality and production stability of liquid crystal panel cutting finished product.

Description

Technical Field

[0001] This invention relates to the field of liquid crystal panel processing technology, specifically to a cutting device for edge straightening of liquid crystal panels. Background Technology

[0002] In the manufacturing process of liquid crystal display devices, the cutting process is a crucial step. Its main function is to cut large-sized liquid crystal glass substrates into small-sized liquid crystal panel bodies that meet production requirements. The cutting accuracy and edge regularity directly determine the finished product quality of the liquid crystal panel, the subsequent assembly accuracy and the stability of use, and have a decisive impact on the performance of the entire liquid crystal display product. The cutting of liquid crystal panels mainly adopts two technical routes: mechanical cutting and laser cutting.

[0003] However, after the initial grinding, cleaning, and transfer processes, the surface of the LCD panel is prone to residual impurities such as dust, debris, and tiny glass particles. If these impurities are not effectively cleaned before entering the laser cutting process, they will directly affect the accuracy and edge regularity of the laser cutting. When the laser cutting machine cuts the LCD panel with impurities attached, the surface impurities will block and interfere with the propagation of the laser beam, causing the laser focusing spot to shift and the energy to attenuate. This will lead to the deviation of the cutting path and uneven cutting depth, resulting in defects such as chipped edges, burrs, and dimensional deviations on the edges of the cut LCD panel, which will significantly reduce the product yield. At the same time, the impurities will undergo abnormal melting and splashing under the high energy of the laser, which will not only further contaminate the panel surface, but may also adhere to the laser head lens, wear the lens, affect the stability of laser emission, shorten the service life of the equipment, and increase production and maintenance costs. Summary of the Invention

[0004] This invention provides a cutting device for edge straightening of liquid crystal panels, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a cutting device for edge straightening of a liquid crystal panel, comprising a laser cutting machine body and a liquid crystal panel body, wherein the liquid crystal panel body is placed on the laser cutting machine body, and a cleaning brush located above the liquid crystal panel body is detachably connected to the laser cutting machine body. Mounting blocks are movably mounted on both the left and right ends of the cleaning brush, and quick-release components for connecting the cleaning brush are provided on the inner walls of the mounting blocks at both ends. Connecting rods are fixedly mounted on the outer ends of the mounting blocks at both ends. A lifting component for controlling the lifting and lowering movement of the cleaning brush is provided at the end of the connecting rod on the left end away from the mounting block. A chip collection funnel located in front of the laser cutting machine body is provided below the cleaning brush.

[0006] Optionally, positioning blocks are fixedly installed at both ends of the sweeping brush, and the inner walls of the outer ends of the positioning blocks at both ends are detachably connected to the mounting blocks via quick-release components.

[0007] Optionally, grooves located outside the quick-release assembly are respectively provided on the front and rear sides of the inner wall of the mounting blocks at both ends, and rectangular holes located above the quick-release assembly are provided through the top of the mounting blocks at both ends.

[0008] Optionally, the quick-release assembly includes a spring, a limiting plate, and a plug rod. The outer end of the spring is fixedly connected to the inner wall of the mounting block, the inner end of the spring is fixedly connected to the outer side of the limiting plate, the inner side of the limiting plate is fixedly connected to the outer end of the plug rod, and the outer end of the plug rod is movably inserted into the positioning block.

[0009] Optionally, protrusions are fixedly installed at both the front and rear ends of the limiting plate, and the end of the protrusion away from the limiting plate is slidably connected to the inner wall of the groove. A pull rod is fixedly installed at the upper end of the limiting plate, and the pull rod extends to the top of the mounting block after passing through the interior of the rectangular hole.

[0010] Optionally, an annular block is fixedly installed on the outer end of the connecting rod on the right side, located above the chip collection funnel. A round rod is movably sleeved inside the annular block. Several balls are evenly distributed on the inner side of the annular block outside the round rod, and the balls roll between the round rod and the annular block. The connecting rod on the left side is connected to the lifting assembly.

[0011] Optionally, the lifting assembly includes a ball nut and a lead screw. The inner wall of the ball nut is movably connected to the outer wall of the lead screw. The right side of the ball nut is fixedly connected to the connecting rod at the left end. A rotating shaft is fixedly sleeved on the inner wall of the lead screw, and a drive motor is fixedly installed at the upper end of the rotating shaft.

[0012] Optionally, side plates are fixedly installed on both the left and right sides of the chip collection funnel, and the end of the side plate away from the chip collection funnel is connected to the laser cutting machine body by bolts. A first sleeve rod is fixedly installed on the right side of the upper end face of the chip collection funnel, and the upper and lower sides of the inner wall of the first sleeve rod are fixedly connected to the upper and lower ends of the round rod, respectively. A second sleeve rod is fixedly installed on the left side of the upper end of the chip collection funnel, and the upper and lower sides of the inner wall of the second sleeve rod are rotatably connected to the upper and lower ends of the rotating shaft, respectively. A housing located outside the drive motor is fixedly installed on the upper end face of the second sleeve rod.

[0013] The present invention has the following beneficial effects: 1. This cutting equipment for LCD panel edge regularization, through the cooperation of the laser cutting machine body, LCD panel body, cleaning brush and chip collection funnel, uses the cleaning brush to clean dust, debris and other impurities on the surface of the LCD panel in real time, and collects and discharges the impurities through the chip collection funnel. This effectively avoids impurities adhering to the panel surface and causing obstruction or interference to the laser cutting path, thereby significantly improving the accuracy and edge regularity of laser cutting, reducing defects such as panel edge chipping and dimensional deviation, and improving the quality and production stability of LCD panel cutting products.

[0014] 2. This LCD panel edge-regulating cutting equipment, through the cooperation of the LCD panel body, cleaning brush, lifting assembly, and drive motor, and by adjusting the working height of the cleaning brush using the lifting assembly, can adapt to LCD panels of different thicknesses for impurity cleaning. This effectively improves the equipment's versatility and applicability, avoiding problems such as incomplete cleaning or scratching the panel surface due to mismatched cleaning heights. It ensures the stability and cutting precision of the laser cutting process, and enhances the equipment's flexibility and production adaptability.

[0015] 3. This LCD panel edge-regulating cutting equipment, through the cooperation of the cleaning brush, positioning block, quick-release assembly, and mounting block, uses the quick-release assembly to quickly assemble and disassemble the cleaning brush and mounting block, simplifying the cleaning brush assembly and disassembly process, facilitating regular replacement, maintenance, and cleaning of the cleaning brush, effectively reducing equipment maintenance difficulty and downtime. At the same time, the positioning block ensures that the cleaning brush is installed in an accurate and reliable position, improving the convenience of equipment use and maintenance efficiency, and ensuring the long-term stable operation of the cleaning structure during the LCD panel edge cutting process. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the chip collection funnel in the structure of the present invention; Figure 3 This is a schematic diagram of the second set of rods in the structure of the present invention; Figure 4 This is a schematic diagram of the chassis in the structure of the present invention; Figure 5 This is a schematic diagram of the lifting component in the structure of the present invention; Figure 6 This is a schematic diagram of the quick-release component in the structure of the present invention; Figure 7 This is a schematic diagram of the ball bearings in the structure of the present invention.

[0017] In the diagram: 1. Laser cutting machine body; 2. LCD panel body; 3. Cleaning brush; 4. Mounting block; 5. Quick release assembly; 501. Spring; 502. Limiting plate; 503. Insert rod; 6. Connecting rod; 7. Lifting assembly; 701. Ball bearing nut; 702. Lead screw; 8. Chip collection funnel; 9. Positioning block; 10. Groove; 11. Rectangular hole; 12. Protrusion; 13. Pull rod; 14. Annular block; 15. Round rod; 16. Ball bearing; 17. Rotating shaft; 18. Drive motor; 19. Side plate; 20. First set of rods; 21. Second set of rods; 22. Machine casing. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figure 1 , Figure 3 and Figure 4 This invention provides a technical solution: a cutting device for edge straightening of a liquid crystal panel, comprising a laser cutting machine body 1 and a liquid crystal panel body 2. The liquid crystal panel body 2 is placed on the laser cutting machine body 1. A cleaning brush 3 located above the liquid crystal panel body 2 is detachably connected to the laser cutting machine body 1. The working height of the cleaning brush 3 is adjusted according to the actual thickness of the liquid crystal panel body 2. Mounting blocks 4 are movably installed at the left and right ends of the cleaning brush 3. The inner walls of the mounting blocks 4 at both ends are provided with quick-release components 5 for connecting the cleaning brush 3. Connecting rods 6 are fixedly installed at the outer ends of the mounting blocks 4 at both ends. A lifting component 7 for controlling the lifting and lowering movement of the cleaning brush 3 is provided at the end of the connecting rod 6 away from the mounting block 4 at the left end. A chip collection funnel 8 located in front of the laser cutting machine body 1 is provided below the cleaning brush 3. When the liquid crystal panel body 2 passes through the cleaning brush 3, the cleaning brush 3 can sweep the impurities on the surface of the liquid crystal panel body 2 to the chip collection funnel 8 for subsequent unified collection.

[0020] Positioning blocks 9 are fixedly installed at both ends of the sweeping brush 3. The inner walls of the outer ends of the positioning blocks 9 at both ends are detachably connected to the mounting block 4 through quick-release components 5.

[0021] The front and rear sides of the inner wall of the mounting blocks 4 at both ends are respectively provided with grooves 10 located outside the quick-release assembly 5, and the top of the mounting blocks 4 at both ends is provided with a rectangular hole 11 located above the quick-release assembly 5.

[0022] Please see Figure 2 , Figure 6 and Figure 7The quick-release assembly 5 includes a spring 501, a limiting plate 502, and an insert rod 503. Pulling the pull rod 13 compresses the spring 501 through the connection of the limiting plate 502, causing the insert rod 503 to separate from the positioning block 9. At this time, the cleaning brush 3 can be disassembled between the mounting blocks 4 at the left and right ends. The outer end of the spring 501 is fixedly connected to the inner wall of the mounting block 4, the inner end of the spring 501 is fixedly connected to the outer side of the limiting plate 502, the inner side of the limiting plate 502 is fixedly connected to the outer end of the insert rod 503, and the outer end of the insert rod 503 is movably inserted into the positioning block 9.

[0023] Both ends of the limiting plate 502 are fixedly installed with protrusions 12, and the end of the protrusion 12 away from the limiting plate 502 is slidably connected to the inner wall of the groove 10. The upper end of the limiting plate 502 is fixedly installed with a pull rod 13, and the pull rod 13 extends to the top of the mounting block 4 after passing through the interior of the rectangular hole 11.

[0024] An annular block 14 is fixedly installed on the outer end of the connecting rod 6 at the right end, located above the chip collection funnel 8. A round rod 15 is movably sleeved inside the annular block 14. Several balls 16 are evenly distributed on the inner side of the annular block 14, located outside the round rod 15. The balls 16 roll between the round rod 15 and the annular block 14. While the cleaning brush 3 moves, the annular block 14 slides on the round rod 15 through the connection of the positioning block 9, quick-release assembly 5, mounting block 4 and the connecting rod 6 at the right end. Furthermore, the rolling of the balls 16 between the annular block 14 and the round rod 15 reduces the frictional force of the direct contact between the annular block 14 and the round rod 15. The connecting rod 6 at the left end is connected to the lifting assembly 7.

[0025] Please see Figure 5 and Figure 2The lifting assembly 7 includes a ball nut 701 and a lead screw 702. The lead screw 702 has a continuous helical raceway on its outer circumferential surface, and the ball nut 701 also has a matching helical raceway on its inner circumferential surface. The raceway between the ball nut 701 and the lead screw 702 is filled with several balls. When the rotating shaft 17 drives the lead screw 702 to rotate around its own axis, the helical raceway on the lead screw 702 generates a circumferential driving force on the balls, causing the balls to roll along the helical raceway. Furthermore, because the lead screw 702 and the ball nut 701 form a rolling fit through the balls, the balls, while rolling along the helical raceway, will generate an axial displacement along the axis of the lead screw 702. This causes the ball nut 701 to move linearly along the axis of the lead screw 702. The inner wall of the ball nut 701 is movably connected to the outer wall of the lead screw 702. The right side of the ball nut 701 is fixedly connected to the connecting rod 6 at the left end. A rotating shaft 17 is fixedly sleeved on the inner wall of the lead screw 702. A drive motor 18 is fixedly installed at the upper end of the rotating shaft 17. When the power of the drive motor 18 is turned on, the drive motor 18 drives the lead screw 702 to rotate through the connection of the rotating shaft 17. At the same time, the ball nut 701 moves, and the cleaning brush 3 moves in the same direction through the connection of the connecting rod 6 at the left end, the mounting block 4, the quick release assembly 5 and the positioning block 9, so as to achieve the effect of adjusting the height of the cleaning brush 3.

[0026] Side plates 19 are fixedly installed on both the left and right sides of the chip collection funnel 8, and the end of the side plate 19 away from the chip collection funnel 8 is connected to the laser cutting machine body 1 by bolts. A first sleeve rod 20 is fixedly installed on the right side of the upper end face of the chip collection funnel 8, and the upper and lower sides of the inner wall of the first sleeve rod 20 are fixedly connected to the upper and lower ends of the round rod 15 respectively. A second sleeve rod 21 is fixedly installed on the left side of the upper end of the chip collection funnel 8, and the upper and lower sides of the inner wall of the second sleeve rod 21 are rotatably connected to the upper and lower ends of the rotating shaft 17 respectively. A housing 22 located outside the drive motor 18 is fixedly installed on the upper end face of the second sleeve rod 21.

[0027] In summary, this edge-regulating cutting equipment for LCD panels is used by first placing the LCD panel body 2 to be processed on the laser cutting machine body 1. At this time, the LCD panel body 2 first passes through the chip collection funnel 8. The height of the cleaning brush 3 is adjusted according to the actual thickness of the LCD panel body 2. The power of the drive motor 18 is turned on. After the drive motor 18 is turned on, it drives the lead screw 702 to rotate through the connection of the rotating shaft 17. Since the outer circumferential surface of the lead screw 702 is machined with a continuous spiral raceway, the inner circumferential surface of the ball nut 701 is also machined with... The spiral raceway, matched with the lead screw 702, is filled with several balls. When the rotating shaft 17 drives the lead screw 702 to rotate around its own axis, the spiral raceway on the lead screw 702 generates a circumferential driving force on the balls, causing the balls to roll along the spiral raceway. Furthermore, because the lead screw 702 and the ball nut 701 form a rolling fit through the balls, the balls, while rolling along the spiral raceway, generate axial displacement along the axis of the lead screw 702, thereby pushing the ball nut 701 along the spiral raceway. The rod 702 moves linearly along its axis. Simultaneously, the ball nut 701 moves, driving the cleaning brush 3 to move in the same direction via the connection of the left-end connecting rod 6, mounting block 4, quick-release assembly 5, and positioning block 9. At the same time, the cleaning brush 3 moves, driving the annular block 14 to slide on the round rod 15 via the connection of the right-end positioning block 9, quick-release assembly 5, mounting block 4, and right-end connecting rod 6. Furthermore, the rolling of the ball 16 between the annular block 14 and the round rod 15 reduces the friction between the annular block 14 and the round rod 15, until the cleaning brush... Adjust the brush 3 to a suitable height, and then push the LCD panel body 2 from the chip collection funnel 8 to the processing area of ​​the laser cutting machine body 1. When the LCD panel body 2 passes the cleaning brush 3, the cleaning brush 3 can sweep the impurities on the surface of the LCD panel body 2 to the chip collection funnel 8 for subsequent unified collection. Finally, when the cleaning brush 3 is worn, pull the pull rod 13 through the compression spring 501 connected to the limit plate 502 to separate the insertion rod 503 from the positioning block 9. At this time, the cleaning brush 3 can be removed from the mounting blocks 4 at both ends.

[0028] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. Moreover, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cutting device for edge straightening of a liquid crystal panel, comprising a laser cutting machine body (1) and a liquid crystal panel body (2), wherein the liquid crystal panel body (2) is placed on the laser cutting machine body (1), characterized in that: A cleaning brush (3) located above the LCD panel body (2) is detachably connected to the laser cutting machine body (1). Mounting blocks (4) are movably installed on the left and right ends of the cleaning brush (3). The inner walls of the mounting blocks (4) at both ends are provided with quick-release components (5) for connecting the cleaning brush (3). Connecting rods (6) are fixedly installed on the outer ends of the mounting blocks (4) at both ends. A lifting component (7) for controlling the lifting and lowering movement of the cleaning brush (3) is provided at the end of the connecting rod (6) at the left end away from the mounting block (4). A chip collection funnel (8) located in front of the laser cutting machine body (1) is provided below the cleaning brush (3).

2. The cutting equipment for edge straightening of a liquid crystal panel according to claim 1, characterized in that: The cleaning brush (3) is fixedly installed with positioning blocks (9) at both ends. The inner walls of the outer ends of the positioning blocks (9) at both ends are detachably connected to the mounting block (4) through quick-release components (5).

3. The cutting equipment for edge straightening of a liquid crystal panel according to claim 2, characterized in that: The mounting blocks (4) at both ends of the left and right ends have grooves (10) on the front and back sides of their inner walls, which are located outside the quick-release assembly (5). The top of the mounting blocks (4) at both ends of the left and right ends has a rectangular hole (11) located above the quick-release assembly (5).

4. The cutting equipment for edge straightening of a liquid crystal panel according to claim 3, characterized in that: The quick-release assembly (5) includes a spring (501), a limiting plate (502), and a plug rod (503). The outer end of the spring (501) is fixedly connected to the inner wall of the mounting block (4), the inner end of the spring (501) is fixedly connected to the outer side of the limiting plate (502), the inner side of the limiting plate (502) is fixedly connected to the outer end of the plug rod (503), and the outer end of the plug rod (503) is movably inserted into the positioning block (9).

5. The cutting equipment for edge straightening of a liquid crystal panel according to claim 4, characterized in that: Both ends of the limiting plate (502) are fixedly installed with protrusions (12), and the end of the protrusion (12) away from the limiting plate (502) is slidably connected to the inner wall of the groove (10). The upper end of the limiting plate (502) is fixedly installed with a pull rod (13), and the pull rod (13) extends to the top of the mounting block (4) after passing through the interior of the rectangular hole (11).

6. The cutting equipment for edge straightening of a liquid crystal panel according to claim 1, characterized in that: The outer end of the connecting rod (6) on the right is fixedly installed with an annular block (14) located above the chip collection funnel (8). A round rod (15) is movably sleeved inside the annular block (14). Several balls (16) located outside the round rod (15) are evenly distributed on the inner side of the annular block (14). The balls (16) roll between the round rod (15) and the annular block (14). The connecting rod (6) on the left is connected to the lifting assembly (7).

7. The cutting equipment for edge straightening of a liquid crystal panel according to claim 6, characterized in that: The lifting assembly (7) includes a ball nut (701) and a lead screw (702). The inner wall of the ball nut (701) is movably connected to the outer wall of the lead screw (702). The right side of the ball nut (701) is fixedly connected to the connecting rod (6) at the left end. A rotating shaft (17) is fixedly sleeved on the inner wall of the lead screw (702). A drive motor (18) is fixedly installed on the upper end of the rotating shaft (17).

8. The cutting equipment for edge straightening of a liquid crystal panel according to claim 7, characterized in that: Side plates (19) are fixedly installed on both the left and right sides of the chip collection funnel (8), and the end of the side plate (19) away from the chip collection funnel (8) is connected to the laser cutting machine body (1) by bolts. A first sleeve rod (20) is fixedly installed on the right side of the upper end face of the chip collection funnel (8), and the upper and lower sides of the inner wall of the first sleeve rod (20) are fixedly connected to the upper and lower ends of the round rod (15) respectively. A second sleeve rod (21) is fixedly installed on the left side of the upper end of the chip collection funnel (8), and the upper and lower sides of the inner wall of the second sleeve rod (21) are rotatably connected to the upper and lower ends of the rotating shaft (17) respectively. A housing (22) located outside the drive motor (18) is fixedly installed on the upper end face of the second sleeve rod (21).

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