Edge breakage prevention auxiliary device for LCD glass substrate cutting

Abstract

The utility model relates to the technical field of display screen processing, in particular to an anti-edge-breakage auxiliary device for cutting an LCD (liquid crystal display) glass substrate, which comprises a frame, a second driving component, a support, a laser cutting machine body, a tensioning component and a fourth driving component, a support plate is arranged on the frame, and a clamping plate is arranged on the support plate; the second driving assembly is in driving connection with clamping plates on two sides; the bracket is arranged on the rack, and a movable plate is arranged on the bracket; the laser cutting machine body is arranged on the movable plate in a sliding mode, and the movable plate is provided with a linear module for driving the laser cutting machine body to slide. The tensioning assembly is connected to the movable plate and the positioning plate, an inclined hole is formed in the positioning plate, and a sliding block is arranged in the inclined hole; the fourth driving assembly drives the sliding block to slide along the inner wall of the inclined hole. According to the utility model, one side of the cutting line of the glass substrate is positioned through the pressing plate, and the sliding block which slides obliquely applies thrust to the cutting side of the glass substrate, so that the edge breakage of the glass substrate in the cutting process can be effectively prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to display screen processing technical field especially relates to a kind of anti-edge collapse auxiliary devices for LCD glass substrate cutting. BACKGROUND

[0002] When processing and producing LCD display screen, large glass substrate needs to be segmented into panel of specific size, and it is very easy to cause edge collapse when cutting glass substrate, and once edge collapse or micro crack occurs, it will affect display effect or subsequent processing.

[0003] The existing cutting method for glass substrate mainly includes laser cutting and mechanical cutting, wherein the probability of edge collapse of laser cutting is obviously lower than that of mechanical cutting, but edge collapse still occurs under the action of cutting point thermal stress due to lack of structure for supporting and positioning glass during laser cutting, especially when cutting starts or when substrate is segmented, and the frequency of such edge collapse is higher. UTILITY MODEL CONTENT

[0004] The utility model aims at the problems in the background art, and provides an anti-edge collapse auxiliary device for LCD glass substrate cutting.

[0005] The technical scheme of the utility model: an anti-edge collapse auxiliary device for LCD glass substrate cutting, comprising a rack, a support plate is arranged on the rack, a first through hole is arranged on the support plate, two clamping plates symmetrically connected with the support plate are arranged on the support plate;

[0006] A second drive assembly is arranged on the rack, and the second drive assembly drives the clamping plates on both sides to approach or move away synchronously in the working state;

[0007] A bracket is arranged on the rack, a movable plate connected with the bracket is arranged on the bracket, a third drive assembly for driving the movable plate to rise or fall is arranged on the bracket, and a second through hole aligned with the first through hole is arranged on the movable plate;

[0008] A laser cutting machine body is arranged on the movable plate, an output end of the laser cutting machine body is connected with a laser cutter head, the laser cutter head is inserted into the second through hole, and a linear module for driving the laser cutting machine body to slide is arranged on the movable plate;

[0009] A tensioning assembly is arranged on the movable plate, an active end of the tensioning assembly is connected with a positioning plate, a third through hole aligned with the second through hole is arranged on the positioning plate, and an inclined hole is arranged on the positioning plate, a sliding block connected with the inner wall of the inclined hole is arranged in the inclined hole;

[0010] And a fourth drive assembly is arranged on the positioning plate and drives the sliding block to slide along the inner wall of the inclined hole.

[0011] Preferably, a set of conveying assemblies is arranged on the rack on both sides of the support plate, the two sets of conveying assemblies are drivingly connected through a transmission assembly, and the rack is provided with a first driving assembly for driving the conveying assemblies on both sides to run synchronously.

[0012] Preferably, the conveying assembly comprises a driving roller, a driven roller and a conveying belt, the driving roller and the driven roller are rotationally connected with the rack, the driving roller and the driven roller are drivingly connected through the conveying belt, the load-carrying surface of the conveying belt is flush with the upper end surface of the support plate, and the rack is provided with a flat plate for supporting the load-carrying end of the conveying belt.

[0013] Preferably, the transmission assembly comprises a first pulley, a second pulley and a toothed belt, the first pulley and the second pulley are coaxially connected with the driven rollers on both sides respectively, and the first pulley and the second pulley are drivingly connected through the toothed belt.

[0014] Preferably, the clamping plate is a U-shaped plate, the U-shaped plate comprises vertical plates and a horizontal plate, the two vertical plates are located on both sides of the horizontal plate and are slidingly connected with the horizontal plate, the support plate is provided with a guide hole on both sides of the first through hole, the two vertical plates of the U-shaped plate are inserted into the corresponding side guide holes and are slidingly connected with the guide holes, and the horizontal plate is located at the bottom of the support plate and is slidingly connected with the support plate.

[0015] Preferably, the tensioning assembly comprises a plurality of limiting rods and springs, each limiting rod penetrates through the movable plate and is slidingly connected with the movable plate, the upper end of the limiting rod is provided with a limiting block, the lower end of the limiting rod is connected with the positioning plate, each spring is sleeved on the corresponding side limiting rod, and the two ends of the spring are respectively abutted with the side close to the movable plate and the positioning plate.

[0016] Preferably, the bottom of the positioning plate is provided with a first anti-skid pad, the bottom of the sliding block is provided with a second anti-skid pad, and the first anti-skid pad and the second anti-skid pad are respectively located on both sides of the third through hole.

[0017] Compared with the prior art, the utility model has the beneficial technical effects that:

[0018] Through setting two groups of linkage conveying belt structures, and setting the supporting plate between the two conveying belts, the glass substrate is conveniently conveyed and quickly processed; through setting the clamping plate and the cooperation structure of the second driving assembly, the glass substrate is conveniently clamped and positioned from both sides; through setting the tensioning assembly and the positioning plate, the inclined hole is set on the positioning plate, the sliding block is set in the inclined hole, and the fourth driving assembly that drives the sliding block to slide obliquely along the inclined hole is set on the positioning plate, the cutting side of the glass substrate is pushed and squeezed towards the other side through the obliquely sliding sliding block, so that the stress unevenness of the cutting side and the other side is avoided to cause the edge collapse; meanwhile, the pressure detection structure of the sliding block, and the structures of the first and second anti-skid pads are also set, the advancing force of the sliding block can be adjusted according to different glass substrates, and the first and second anti-skid pads are used for protecting the surface of the glass substrate. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic view of an embodiment of the utility model;

[0020] Figure 2 It is a connecting structure schematic view of the clamping plate and the supporting plate;

[0021] Figure 3 It is a connecting structure schematic view of each component on the movable plate;

[0022] Figure 4 It is a connecting structure schematic view of each component on the positioning plate.

[0023] The drawings show that: 1, rack; 2, conveying belt; 3, transmission assembly; 4, first driving assembly; 5, supporting plate; 51, first through hole; 6, clamping plate; 7, second driving assembly; 71, bidirectional screw; 72, second motor; 73, guide rod; 8, support; 9, movable plate; 91, second through hole; 10, third driving assembly; 11, laser cutting machine body; 12, laser cutter head; 13, linear module; 14, limiting rod; 15, positioning plate; 151, third through hole; 152, inclined hole; 153, first anti-skid pad; 16, spring; 17, sliding block; 18, second anti-skid pad; 19, fourth driving assembly. DETAILED DESCRIPTION

[0024] Embodiment one

[0025] As Figures 1-4As shown, the utility model provides a kind of LCD glass substrate cutting is prevented auxiliary device of edge collapse, including rack 1, second drive assembly 7, support 8, laser cutting machine body 11, tensioning component and fourth drive assembly 19.Rack 1 is provided with support plate 5, first through-hole 51 is provided on support plate 5, and two clamping plates 6 that are slidably connected are symmetrically provided on support plate 5.Rack 1 is provided with a group of conveying assembly on the both sides of support plate 5, and two groups of conveying assembly are driven connection by transmission assembly 3, and rack 1 is provided with the first drive assembly 4 of driving the synchronous operation of conveying assembly on both sides.Conveying assembly includes driving roller, driven roller and conveying belt 2, and driving roller and driven roller are rotatably connected with rack 1, and driving roller is driven roller transmission connection by conveying belt 2, and the load surface of conveying belt 2 is flush with the upper end surface of support plate 5, and rack 1 is provided with the flat plate for supporting the load end of conveying belt 2.The first drive assembly 4 includes first motor, and the body of first motor is provided on rack 1, and the output end of first motor is connected with the roller shaft of one driving roller.Transmission assembly 3 includes first pulley, second pulley and toothed belt, and first pulley and second pulley are coaxially connected with the driven roller on both sides respectively, and first pulley and second pulley are driven connection by toothed belt.Clamping plate 6 is U-shaped plate, and U-shaped plate includes vertical plate and horizontal plate, and two vertical plates are located on the both sides of horizontal plate and are slidably connected, and guiding hole is provided on the both sides of first through-hole 51 on support plate 5, and the two vertical plates of U-shaped plate are inserted into the guiding hole on the corresponding side and are slidably connected, and horizontal plate is located on the bottom of support plate 5 and is slidably connected.The second drive assembly 7 includes but is not limited to bidirectional screw rod 71 and second motor 72, and bidirectional screw rod 71 is rotatably connected with rack 1, and the horizontal plate of two clamping plates 6 is respectively screw connected with the corresponding end of bidirectional screw rod 71, and the body of second motor 72 is provided on rack 1, and the output end of second motor 72 is connected with bidirectional screw rod 71, and guiding rod 73 that is parallel with bidirectional screw rod 71 is provided on rack 1, and guiding rod 73 penetrates the horizontal plate on both sides and is slidably connected.Support 8 is provided on rack 1, and movable plate 9 that is slidably connected is provided on support 8, and third drive assembly 10 that drives movable plate 9 to ascend or descend is provided on support 8, and third drive assembly 10 includes but is not limited to hydraulic cylinder, and the body of hydraulic cylinder is connected with support 8, and the output end of hydraulic cylinder is connected with movable plate 9, and second through-hole 91 that is aligned with first through-hole 51 is provided on movable plate 9.Laser cutting machine body 11 is slidably arranged on movable plate 9, and the output end of laser cutting machine body 11 is connected with laser cutter head 12, and laser cutter head 12 is inserted into second through-hole 91, and linear module 13 that drives laser cutting machine body 11 to slide is provided on movable plate 9.The tensioning assembly is arranged on the movable plate 9, the movable end of the tensioning assembly is connected with the positioning plate 15, the tensioning assembly comprises a plurality of limiting rods 14 and springs 16, each limiting rod 14 penetrates through the movable plate 9 and is in sliding connection with the movable plate 9, the upper end of the limiting rod 14 is provided with a limiting block, the lower end of the limiting rod 14 is connected with the positioning plate 15, each spring 16 is sleeved on the corresponding limiting rod 14 on the side, and the two ends of the spring 16 are respectively in abutment with the side close to the movable plate 9 and the positioning plate 15. The positioning plate 15 is provided with a third through hole 151 opposite to the second through hole 91, and the positioning plate 15 is provided with an inclined hole 152, and a sliding block 17 in sliding connection with the inner wall of the inclined hole 152 is arranged in the inclined hole 152. The fourth driving assembly 19 is arranged on the positioning plate 15 and drives the sliding block 17 to slide along the inner wall of the inclined hole 152. The fourth driving assembly 19 comprises but is not limited to a pneumatic cylinder, the body of the pneumatic cylinder is in rotary connection with the positioning plate 15, an ear plate is arranged on the sliding block 17, and the output end of the pneumatic cylinder is in rotary connection with the ear plate on the sliding block 17.

[0026] In the embodiment, the glass substrate is placed on the conveying belt 2 at the feeding end of the rack 1, the first motor is started, the first motor drives the conveying belt 2 to run to the position where the cutting line of the glass substrate is opposite to the first through hole 51, then the second motor 72 is started, the second motor 72 drives the bidirectional screw rod 71 to rotate, so that the clamping plates 6 on the two sides are synchronously close to the glass substrate and clamp and position the glass substrate from the two sides, then the hydraulic cylinder is started, the hydraulic cylinder presses down the movable plate 9 to the position where the bottom surface of the positioning plate 15 is in contact with the upper surface of the glass substrate, the pressure is continuously applied, the spring 16 is contracted, the pressure plate 15 presses the glass substrate, then the pneumatic cylinder is started, the pneumatic cylinder drives the sliding block 17 to slide in the inclined hole 152 to be in contact with the glass substrate, then the laser cutting program is started, the linear module 13 drives the laser cutter head 12 to move, so that the glass substrate is quickly and accurately cut. In the embodiment, the obliquely sliding sliding block 17 applies an oblique extrusion force to the cutting side of the glass substrate, so that the edge collapse of the cutting side of the glass substrate caused by instantaneous thermal stress when the laser cutter head 12 initially contacts the glass substrate or is about to separate from the glass substrate is avoided, and the edge collapse caused by stress unevenness between the cutting side and the other side during the laser cutting process is also avoided.

[0027] Embodiment two

[0028] As Figure 4 shown, the auxiliary device for preventing edge collapse in the cutting of the LCD glass substrate is provided, compared with the first embodiment, the bottom of the positioning plate 15 is provided with the first anti-skid pad 153, the bottom of the sliding block 17 is provided with the second anti-skid pad 18, the first anti-skid pad 153 and the second anti-skid pad 18 are respectively located on the two sides of the third through hole 151, and the first anti-skid pad 153 and the second anti-skid pad 18 are both flexible anti-skid rubber pads.

[0029] In this embodiment, the flexible first anti-slip pad 153 and second anti-slip pad 18 come into contact with the glass substrate, which can effectively prevent the glass substrate from being crushed when it is in rigid contact with the positioning plate 15, and can also prevent the slider 17 from scratching the glass surface when sliding, while ensuring uniform pressure distribution.

[0030] Example 3

[0031] like Figure 4 As shown, the present invention proposes an anti-chipping auxiliary device for cutting LCD glass substrates. Compared with Embodiment 1 and Embodiment 2, a pressure sensor is provided on the slider 17, and a controller is provided on the frame 1. The body of the pressure sensor is connected to the slider 17, the detection end of the pressure sensor is connected to the ear plate, and the pressure sensor and the air inlet solenoid valve of the cylinder are electrically connected to the controller.

[0032] In this embodiment, for glass substrates of different thicknesses, when the glass substrate is squeezed and positioned by the first anti-slip pad 153 and the second anti-slip pad 18, it is necessary to strictly control the pressure value. At this time, the pressure of the slider 17 is detected by the pressure sensor, so that the pushing force of the cylinder can be precisely controlled to avoid [failure to achieve the desired effect].

[0033] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A chipping prevention auxiliary device for cutting LCD glass substrates, characterized in that, include: A frame (1) is provided on the frame (1), a support plate (5) is provided on the support plate (5), a first through hole (51) is provided on the support plate (5), and two clamping plates (6) symmetrically connected to it are provided on the support plate (5); The second drive assembly (7) is mounted on the frame (1). When in operation, the second drive assembly (7) drives the clamps (6) on both sides to move closer or further away synchronously. A bracket (8) is mounted on a frame (1). A movable plate (9) is slidably connected to the bracket (8). A third drive assembly (10) is mounted on the bracket (8) to drive the movable plate (9) to rise or fall. A second through hole (91) is mounted on the movable plate (9) and aligned with the first through hole (51). The laser cutting machine body (11) is slidably mounted on the movable plate (9). The output end of the laser cutting machine body (11) is connected to the laser cutter head (12). The laser cutter head (12) is inserted into the second through hole (91). A linear module (13) for driving the laser cutting machine body (11) to slide is provided on the movable plate (9). The tensioning assembly is set on the movable plate (9). The movable end of the tensioning assembly is connected to the positioning plate (15). The positioning plate (15) is provided with a third through hole (151) aligned with the second through hole (91). The positioning plate (15) is also provided with an oblique hole (152). A slider (17) is provided in the oblique hole (152) and slidably connected to its inner wall. And a fourth drive assembly (19), which is mounted on the positioning plate (15) and drives the slider (17) to slide along the inner wall of the inclined hole (152).

2. The anti-chipping auxiliary device for cutting LCD glass substrates according to claim 1, characterized in that, A set of conveying components is set on both sides of the support plate (5) on the frame (1). The two sets of conveying components are connected by a transmission component (3). A first drive component (4) is set on the frame (1) to drive the conveying components on both sides to run synchronously.

3. The anti-chipping auxiliary device for cutting LCD glass substrates according to claim 2, characterized in that, The conveying assembly includes a drive roller, a driven roller and a conveyor belt (2). The drive roller and the driven roller are rotatably connected to the frame (1). The drive roller and the driven roller are connected by transmission through the conveyor belt (2). The load-bearing surface of the conveyor belt (2) is flush with the upper end of the support plate (5), and a plate for supporting the load-bearing end of the conveyor belt (2) is provided on the frame (1).

4. The anti-chipping auxiliary device for cutting LCD glass substrates according to claim 3, characterized in that, The transmission assembly (3) includes a first pulley, a second pulley and a toothed belt. The first pulley and the second pulley are coaxially connected to the driven rollers on both sides, and the first pulley and the second pulley are connected by toothed belt drive.

5. The anti-chipping auxiliary device for cutting LCD glass substrates according to claim 1, characterized in that, The clamp (6) is a U-shaped plate, which includes a vertical plate and a horizontal plate. The two vertical plates are located on both sides of the horizontal plate and are slidably connected to it. The support plate (5) is provided with a guide hole on both sides of the first through hole (51). The two vertical plates of the U-shaped plate are inserted into the guide holes on the corresponding sides and are slidably connected to them. The horizontal plate is located at the bottom of the support plate (5) and is slidably connected to it.

6. The anti-chipping auxiliary device for cutting LCD glass substrates according to claim 1, characterized in that, The tensioning assembly includes a limiting rod (14) and a spring (16). There are multiple limiting rods (14) and springs (16). Each limiting rod (14) passes through the movable plate (9) and is slidably connected to it. A limiting block is provided at the upper end of the limiting rod (14), and the lower end of the limiting rod (14) is connected to the positioning plate (15). Each spring (16) is respectively sleeved on the limiting rod (14) on the corresponding side. The two ends of the spring (16) abut against the side of the movable plate (9) and the positioning plate (15) that are close to each other.

7. The anti-chipping auxiliary device for cutting LCD glass substrates according to claim 1, characterized in that, The bottom of the positioning plate (15) is provided with a first anti-slip pad (153), and the bottom of the slider (17) is provided with a second anti-slip pad (18). The first anti-slip pad (153) and the second anti-slip pad (18) are located on both sides of the third through hole (151).

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