Curved cutting device for liquid crystal display screen

Abstract

The invention discloses an arc cutting device for a liquid crystal display screen, comprising a workbench, a cutting table and a cutting mechanism, wherein the cutting table is installed on the workbench, and a transverse axis motor, a transverse axis slider, a transverse axis guide rod and a transverse axis lead screw are installed on the front side of the workbench; a longitudinal axis motor, a longitudinal axis slide seat, a longitudinal axis guide rod and a longitudinal axis lead screw are installed on the right side of the workbench; the side of the transverse axis slide seat facing the workbench is fixedly connected with one end of an adjustable track, the other end of the adjustable track passes through the longitudinal slide seat, and a tensioning mechanism is provided at one end passing through the longitudinal slide seat, a through hole is provided in the middle of the cutting seat through which a guide rail frame passes, the vertical roller is fitted on the upper end of the guide rail frame, and a cutting roller is installed at the bottom of the cutting seat; the invention can complete arc cutting by pre-adjusting the curvature of the adjustable track to be the same as the curvature of the liquid crystal display screen, and then pushing the cutting seat, and the invention has the advantages of convenient operation and good cutting consistency.

Description

Technical Field

[0001] The invention relates to the technical field of liquid crystal display screen cutting devices, and in particular to an arc-shaped cutting device for a liquid crystal display screen. Background Art

[0002] Liquid crystal display, also known as LCD in English, is a type of flat panel display. It is used for TV and computer screen display. The advantages of this display are low power consumption, small size and low radiation.

[0003] LCD displays use two polarized materials with a liquid crystal solution between them. When an electric current passes through the liquid, the crystals are rearranged so that light cannot pass through them. Therefore, each crystal is like a shutter, which allows light to pass through and blocks light. Liquid crystal display (LCD) is currently developing towards the goal of being light, thin, short and small. Display products with a long history in computer peripherals are of course no exception. Under the premise of being easy to carry and transport, traditional display methods such as CRT image tube displays and LED display panels are all subject to factors such as large size or huge power consumption, and cannot meet the actual needs of users. The development of LCD display technology just fits the current trend of information products. Whether it is right-angle display, low power consumption, small size, or zero radiation, it can allow users to enjoy the best visual environment.

[0004] The liquid crystal display screen of an existing mobile phone or tablet computer is not a standard rectangle, because the four corners of the liquid crystal display are arc-shaped rounded corners. When the existing cutting equipment cuts the existing liquid crystal display panel, the liquid crystal display screen is first cut into a square plate, and then the four corners of the display screen are manually cut into rounded corners with the help of tools. This manual cutting method has low work efficiency and poor consistency between products. In view of the above technical problems, the present invention provides a liquid crystal display arc cutting device. Summary of the invention

[0005] The purpose of the invention is to provide a liquid crystal display screen arc cutting device.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions:

[0007] A liquid crystal display arc cutting device comprises a workbench, a cutting table and a cutting mechanism, wherein the cutting table is mounted on the workbench, and the liquid crystal display to be cut is placed on the cutting table, and a transverse-axis motor, a transverse-axis slide, a transverse-axis guide rod and a transverse-axis lead screw are mounted on the front side of the workbench, and the transverse-axis lead screw is transmission-connected with the transverse-axis motor, and the transverse-axis slide cooperates with the transverse-axis guide rod and the transverse-axis lead screw; a longitudinal-axis motor, a longitudinal-axis slide, a longitudinal-axis guide rod and a longitudinal-axis lead screw are mounted on the right side of the workbench, and the longitudinal-axis lead screw is transmission-connected with the longitudinal-axis motor, and the longitudinal-axis slide cooperates with the longitudinal-axis guide rod and the longitudinal-axis lead screw; the side of the transverse-axis slide facing the workbench is fixedly connected to one end of an adjustable track, and the other end of the adjustable track passes through the longitudinal-axis slide, and a tensioning mechanism is provided on the end passing through the longitudinal-axis slide, and the adjustable track comprises a guide rail frame, a flexible connecting belt and a connecting wheel, and the guide rail frame comprises left-right symmetrical The wheelbase is shortened and the strap is retracted to allow the rider to move forward along the length of the wheelbase, wherein the strap has an angular channel formed between the side rails of the wheelbase and the side rails of the wheelbase, the strap having a channel slot and a cam which are adapted to move the rider towards the wheelbase.

[0008] Furthermore, the tensioning mechanism includes a push block, a tensioning spring and an adjusting bolt installed at the end of the guide rail frame. The push block and the tensioning spring are installed in the inner cavity of the guide rail frame. The adjusting bolt is threadedly engaged with the end of the guide rail frame. The tensioning spring pushes the push block to abut against the connecting wheel, so that the connecting wheels fit tightly.

[0009] Furthermore, the locking mechanism includes a fixed block, a locking screw and a locking block. The fixed block is installed on the outer side of the longitudinal axis slide and is U-shaped. The adjustable rail passes through the middle of the U-shaped fixed block. The locking screw is threadedly engaged with one side of the fixed block. The locking block is fixedly connected to the end of the locking screw as a whole. The locking screw is threadedly engaged with the fixed block to push the locking block to squeeze the outer side of the adjustable rail and lock it with the fixed block.

[0010] Furthermore, an arc surface is provided at one end of the push block in contact with the connecting wheel, and two arc grooves corresponding to the positions of the connecting convex rings are provided on the inner side of the arc surface. Guide slide blocks cooperating with the inner sliding grooves of the guide rail frame are provided on both sides of the push block.

[0011] Furthermore, the cutting hob is a disc-shaped tool, and the cutting hob is mounted on a tool holder at the bottom of the cutting seat through a bearing.

[0012] Furthermore, a handle for pushing the cutting seat is provided on the top of the cutting seat.

[0013] Furthermore, the cutting table is provided with positioning blocks, the number of the positioning blocks is two, and the two positioning blocks are located on two diagonal sides of the corner to be cut of the liquid crystal display screen.

[0014] Furthermore, the through hole on the longitudinal axis slide for the guide rail frame to pass through has the same structure as the through hole of the cutting seat, and a vertical roller 2 and a transverse roller 32 having the same structure as the vertical roller 1 and the transverse roller 32 are arranged in the through hole on the longitudinal axis slide.

[0015] In summary, the present invention has the following beneficial effects: the present invention can pre-adjust the curvature of the adjustable track to be the same as the curvature of the liquid crystal display screen, and then push the cutting seat to complete arc cutting, which has the advantages of easy operation and good cutting consistency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 is a schematic diagram of the structure of the tensioning end of the adjustable track;

[0018] Figure 3 It is a schematic diagram of the structure of the push block;

[0019] Figure 4 It is a connection diagram of the connecting wheel;

[0020] Figure 5 It is a partial structural schematic diagram of the cutting seat;

[0021] Figure 6 It is a structural diagram of the longitudinal axis slide part.

[0022] In the figure, 1, workbench; 2, cutting table; 3, adjustable track; 4, LCD screen; 5, positioning block; 6, horizontal axis motor; 7, horizontal axis slide; 8, horizontal axis guide rod; 9, horizontal axis lead screw; 10, cutting seat; 11, longitudinal axis motor; 12, longitudinal axis slide; 13, longitudinal axis guide rod; 14, longitudinal axis lead screw; 15, fixing block; 16, locking screw; 17, locking block; 18, tensioning mechanism; 19, guide rail frame; 20, flexible connecting belt; 21, connecting wheel; 22, push block; 23, tensioning spring; 24, adjusting bolt; 25, arc groove; 26, guide slide; 27, connecting convex ring; 28, connecting ring groove; 29, cutting hob; 30, handle; 31, vertical roller one; 32, horizontal roller one; 33, vertical roller two; 34, horizontal roller two; 35, lead screw hole. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below in conjunction with the accompanying drawings, and the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] like Figure 1-6 As shown, a liquid crystal display arc cutting device comprises a workbench 1, a cutting table 2 and a cutting mechanism, wherein the cutting table 2 is mounted on the workbench 1, and a liquid crystal display screen 4 to be cut is placed on the cutting table 2. A transverse motor 6, a transverse slide 7, a transverse guide rod 8 and a transverse lead screw 9 are mounted on the front side of the workbench 1, wherein the transverse lead screw 9 is connected to the transverse motor 6 by transmission, and the transverse slide 7 cooperates with the transverse guide rod 8 and the transverse lead screw 9; a longitudinal motor 11, a longitudinal slide 12 are mounted on the right side of the workbench 1. 2. A longitudinal guide rod 13 and a longitudinal lead screw 14, wherein the longitudinal lead screw 14 is connected to the longitudinal motor 11 in a transmission manner, and the longitudinal slide 12 cooperates with the longitudinal guide rod 13 and the longitudinal lead screw 14; the side of the transverse slide 7 facing the workbench 1 is fixedly connected to one end of the adjustable track 3, and the other end of the adjustable track 3 passes through the longitudinal slide 12, and a tensioning mechanism 18 is provided at one end of the longitudinal slide 12, and the adjustable track 3 includes a guide rail frame 19, a flexible connecting belt 20 and a connecting wheel 21, and the guide rail frame 19 includes left and right The guide rail frame 19 is composed of symmetrical parts, the upper and lower sides of the left and right parts are connected by a flexible connecting belt 20, and a space for installing a connecting wheel 21 is formed in the middle. The guide rail frame 19 is supported by spring steel. The side wall of the connecting wheel 21 is provided with a connecting convex ring 27 and a connecting ring groove 28. Multiple connecting wheels 21 are sequentially connected by connecting convex rings 27 and connecting ring grooves 28. Multiple connecting wheels 21 are installed in the guide rail frame 19, and the tensioning mechanism 18 squeezes and fits the multiple connecting wheels 21. The inner side of the guide rail frame 19 is provided with two connecting convex rings 27 and connecting ring grooves 28. A limiting groove cooperates with the convex ring 27, and a guide slide groove is provided on the outer side of the guide rail frame 19. The longitudinal axis slide seat 12 is also provided with a locking mechanism for locking the adjustable track 3. A cutting seat 10 is installed on the adjustable track 3. A through hole is provided in the middle of the cutting seat 10 for the guide rail frame 19 to pass through. Horizontal rollers 32 cooperating with the guide slide groove are provided on both sides of the through hole. A vertical roller 31 is provided at the upper end of the through hole. The vertical roller 31 is attached to the upper end of the guide rail frame 19, and a cutting hob 29 is installed at the bottom of the cutting seat 10.

[0025] Further, such as Figure 2As shown, the tensioning mechanism 18 includes a push block 22, a tensioning spring 23 and an adjusting bolt 24 installed at the end of the guide rail frame 19. The push block 22 and the tensioning spring 23 are installed in the inner cavity of the guide rail frame 19. The adjusting bolt 24 is threadedly matched with the end of the guide rail frame 19. The tensioning spring 23 pushes the push block 22 to abut against the connecting wheel 21, so that the connecting wheels 21 are tightly matched. The spring of the tensioning spring 23 is adjusted by changing the length of the matching between the adjusting bolt 24 and the guide rail frame 19.

[0026] Further, such as Figure 1 As shown, the locking mechanism includes a fixing block 15, a locking screw 16 and a locking block 17. The fixing block 15 is installed on the outer side of the longitudinal axis slide 12 and is U-shaped. The adjustable rail 3 passes through the middle of the U-shaped fixing block 15. The locking screw 16 is threadedly engaged with one side of the fixing block 15. The locking block 17 is fixedly connected to the end of the locking screw 16 as a whole. The locking screw 16 is threadedly engaged with the fixing block 15 to push the locking block 17 to squeeze the outer side of the adjustable rail 3 and lock it with the fixing block 15.

[0027] Further, such as Figure 3 As shown, the end of the push block 22 that contacts the connecting wheel 21 is provided with an arc surface, and two arc grooves 25 corresponding to the position of the connecting convex ring 27 are provided on the inner side of the arc surface. Guide sliders 26 that cooperate with the inner sliding grooves of the guide rail frame 19 are provided on both sides of the push block 22. The above structure can ensure that the push block 22 fits closely with the connecting wheel 21.

[0028] Further, such as Figure 5 As shown, the cutting hob 29 is a disc-shaped tool, and the cutting hob 29 is installed on the tool holder at the bottom of the cutting seat 10 through a bearing.

[0029] Furthermore, a handle 30 for pushing the cutting seat 10 is provided on the top of the cutting seat 10 .

[0030] Furthermore, the cutting table 2 is provided with positioning blocks 5 , and the number of the positioning blocks 5 is two, and the two positioning blocks 5 are located at two diagonal sides of the corner to be cut of the liquid crystal display screen 4 .

[0031] Further, such as Figure 6 As shown, the through hole on the longitudinal axis slide 12 for the guide rail frame 19 to pass through has the same structure as the through hole of the cutting seat 10, and a vertical roller 2 33 and a transverse roller 2 34 having the same structure as the vertical roller 1 31 and the transverse roller 32 are arranged in the through hole on the longitudinal axis slide 12.

[0032] Working principle: first, loosen the adjustable track 3 by tightening the locking screw 16, then adjust the positions of the horizontal axis slide 1 and the vertical axis slide 12 by the horizontal axis motor 6 and the vertical axis motor 11, and then push one end of the tensioning mechanism 18 of the adjustable track 3 to form an arc in the middle section of the adjustable track 3. The mutually engaged connecting wheels 21 can only make the adjustable track 3 bend and deform. Due to the existence of the bite force in the vertical direction, the rigidity of the adjustable track 3 made of spring steel is improved, making it almost non-deformed; when the arc of the adjustable track 3 coincides with the arc to be cut of the liquid crystal display screen 4, then fix the adjustable track 3 by the locking screw 16, push the cutting seat 10 to cut the liquid crystal display screen, and the cutting can be completed. When the adjustable track 3 forms an arc, each point of the adjustable track 3 is subject to a circular restoring force in the direction perpendicular to the tangent, and each point of the arc section of the adjustable track 3 is in a relatively stable state. When the cutting seat 10 is pushed, the deformation of the adjustable track 3 caused by the force of pushing the cutting seat 10 can be ignored.

[0033] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A device for cutting an arc of a liquid crystal display screen, comprising a workbench (1), a cutting table (2) and a cutting mechanism, wherein the cutting table (2) is mounted on the workbench (1), and a liquid crystal display screen (4) to be cut is placed on the cutting table (2), characterized in that: The front side of the workbench (1) is equipped with a transverse axis motor (6), a transverse axis slide (7), a transverse axis guide rod (8) and a transverse axis lead screw (9), wherein the transverse axis lead screw (9) is connected to the transverse axis motor (6) by transmission, and the transverse axis slide (7) cooperates with the transverse axis guide rod (8) and the transverse axis lead screw (9); the right side of the workbench (1) is equipped with a longitudinal axis motor (11), a longitudinal axis slide (12), a longitudinal axis guide rod (13) and a longitudinal axis lead screw (14), wherein the longitudinal axis lead screw (14) is connected to the longitudinal axis motor (11) by transmission, and the longitudinal axis slide (12) cooperates with the transverse axis guide rod (8) and the transverse axis lead screw (9). The adjustable track (3) is matched with the longitudinal axis guide rod (13) and the longitudinal axis lead screw (14); the side of the transverse axis slide (7) facing the workbench (1) is fixedly connected to one end of the adjustable track (3); the other end of the adjustable track (3) passes through the longitudinal axis slide (12), and the end passing through the longitudinal axis slide (12) is provided with a tensioning mechanism (18); the adjustable track (3) includes a guide rail frame (19), a flexible connecting belt (20) and a connecting wheel (21); the guide rail frame (19) includes left and right symmetrical parts, and the upper and lower sides of the left and right parts are connected by the flexible connecting belt (20). , a space for installing a connecting wheel (21) is formed in the middle, the guide rail frame (19) is supported by spring steel, the side wall of the connecting wheel (21) is provided with a connecting protruding ring (27) and a connecting ring groove (28), a plurality of connecting wheels (21) are sequentially matched and connected through the connecting protruding ring (27) and the connecting ring groove (28), a plurality of connecting wheels (21) are installed in the guide rail frame (19), and a plurality of connecting wheels (21) are pressed and fitted together by a tensioning mechanism (18), the inner side of the guide rail frame (19) is provided with two limiting grooves matched with the connecting protruding ring (27), the guide rail frame (19) A guide slot is provided on the outer side of the rail frame (19), a locking mechanism for locking the adjustable rail (3) is also provided on the longitudinal axis slide seat (12), a cutting seat (10) is installed on the adjustable rail (3), a through hole is provided in the middle of the cutting seat (10) for the guide rail frame (19) to pass through, transverse rollers (32) cooperating with the guide slot are provided on both sides of the through hole, a vertical roller (31) is provided at the upper end of the through hole, and the vertical roller (31) is attached to the upper end of the guide rail frame (19), and a cutting roller (29) is installed at the bottom of the cutting seat (10).

2. The arc cutting device for a liquid crystal display screen according to claim 1, characterized in that: The tensioning mechanism (18) comprises a push block (22) installed at the end of the guide rail frame (19), a tensioning spring (23) and an adjusting bolt (24); the push block (22) and the tensioning spring (23) are installed in the inner cavity of the guide rail frame (19); the adjusting bolt (24) is threadedly matched with the end of the guide rail frame (19); the tensioning spring (23) pushes the push block (22) to abut against the connecting wheel (21), so that the connecting wheels (21) are tightly matched.

3. The arc cutting device for a liquid crystal display screen according to claim 2, characterized in that: The locking mechanism comprises a fixing block (15), a locking screw (16) and a locking block (17); the fixing block (15) is mounted on the outer side of the longitudinal axis slide seat (12) and is U-shaped; the adjustable track (3) passes through the middle of the U-shaped fixing block (15); the locking screw (16) is threadedly engaged with one side of the fixing block (15); the locking block (17) is fixedly connected to the end of the locking screw (16) as a whole; the locking screw (16) is threadedly engaged with the fixing block (15) to push the locking block (17) to squeeze the outer side of the adjustable track (3) and lock it with the fixing block (15).

4. The arc cutting device for a liquid crystal display screen according to claim 3, characterized in that: The end of the push block (22) in contact with the connecting wheel (21) is provided with an arc surface, and the inner side of the arc surface is provided with two arc grooves (25) corresponding to the position of the connecting convex ring (27), and the two sides of the push block (22) are provided with guide sliding blocks (26) matched with the inner sliding grooves of the guide rail frame (19).

5. The device for cutting a curved shape of a liquid crystal display screen according to claim 4, characterized in that: The cutting hob (29) is a disc-shaped cutter, and the cutting hob (29) is mounted on a cutter holder at the bottom of the cutting seat (10) via a bearing.

6. The device for cutting an arc shape of a liquid crystal display screen according to claim 5, characterized in that: A handle (30) for pushing the cutting seat (10) is provided on the top of the cutting seat (10).

7. The device for cutting an arc shape of a liquid crystal display screen according to claim 6, characterized in that: The cutting table (2) is provided with positioning blocks (5), the number of the positioning blocks (5) is two, and the two positioning blocks (5) are located on two diagonal sides of the corner to be cut of the liquid crystal display screen (4).

8. The device for cutting an arc shape of a liquid crystal display screen according to claim 7, characterized in that: The through hole on the longitudinal axis slide (12) through which the guide rail frame (19) passes has the same structure as the through hole of the cutting seat (10), and a vertical roller 2 (33) and a horizontal roller 2 (34) having the same structure as the vertical roller 1 (31) and the horizontal roller 1 (32) are arranged in the through hole on the longitudinal axis slide (12).

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