Intelligent cutting equipment for display screen production

Abstract

The invention relates to the field of display screen production, in particular to intelligent cutting equipment for display screen production. Comprising a console and a laser transmitter. And a laser transmitter is mounted on the console. According to the laser scribing device, the function of synchronously cracking after laser scribing is achieved, and the specific process is that when a laser transmitter resets after scribing is completed, an electric push rod drives a cutting head to move downwards, so that the cutting head makes contact with a stress groove formed after scribing cutting, and then when the laser transmitter moves and resets, the cutting head is driven by the electric push rod to move downwards; the mechanical force is applied to the formed laser cutting stress groove through the cutting head, so that the laser cutting stress groove is completely cracked, splitting is achieved, and the problems that in traditional display screen cutting, due to the fact that laser scribing and mechanical splitting serve as independent working procedures, the machining efficiency is low, and damage is likely to be generated in secondary alignment and machining are solved.

Description

Technical Field

[0001] This invention relates to the field of display screen manufacturing, and more particularly to an intelligent cutting device for display screen manufacturing. Background Technology

[0002] Currently, the mainstream process for cutting displays is "laser scribing + subsequent cleaving". The core logic of this process is to use a laser to cut stress grooves of controllable depth on the surface of the display glass substrate (instead of cutting through directly), and then apply external force manually or with an independent cleaving device to make the glass crack along the stress grooves. This avoids damage such as burning, peeling or circuit breakage caused by direct laser cutting through the glass substrate.

[0003] However, after the display substrate is diced, it needs to be transferred before it can enter the dicing stage. The transfer process not only consumes a lot of time, but also easily causes scratches on the screen surface or stress diffusion in the stress groove due to bumps and friction. At the same time, manual dicing depends on the operator's skill level, and the dicing trajectory is prone to deviating from the stress groove, resulting in edge chipping and dimensional deviation. Independent dicing equipment requires additional secondary positioning, which further increases the positioning error and equipment investment cost. Summary of the Invention

[0004] In order to overcome the shortcomings of existing display screen cutting processes, such as low processing efficiency and easy secondary damage caused by separation, the present invention provides an intelligent cutting device for display screen production.

[0005] The technical solution is as follows: An intelligent cutting device for display screen production includes a control console and a laser emitter mounted thereon; it also includes a protective cover connected to the laser emitter; a rotating assembly connected to the laser emitter for rotating the protective cover; a fixed tube fixedly connected to the laser emitter, with the protective cover located outside the fixed tube; a connecting tube provided on the laser emitter; an air blowing groove formed between the protective cover and the fixed tube, the air blowing groove communicating with the connecting tube on the laser emitter; a fixed block fixedly connected to the protective cover; a cooling assembly connected to the fixed block for cooling the laser cutting area; a suction assembly connected to the laser emitter for suctioning cutting residue; and a sharding assembly connected to the fixed block for separating the panel.

[0006] Furthermore, the rotating assembly includes a motor connected to the laser emitter; a drive gear is fixedly connected to the output end of the motor; a driven gear is fixedly connected to the outside of the protective cover; the drive gear and the driven gear mesh.

[0007] Furthermore, the cooling assembly includes several fixed shafts connected within the fixed block; all fixed shafts are jointly fixed to two symmetrical sealing plates; each sealing plate is rotatably connected to a belt on its outer side; the two belts are jointly fixed to a rubber sleeve on their outer sides; all the sealing plates, belts, and rubber sleeves enclose a sealed cavity; an inlet pipe is fixed to one of the sealing plates; a drain pipe is fixed to the other sealing plate; both the inlet and drain pipes communicate with the cavity; the drain pipe is spirally wound around the outside of the protective cover, and its wall is adjacent to the air blowing channel inside the protective cover, so that the coolant flowing through the drain pipe can exchange heat with the gas in the air blowing channel, and this section of the drain pipe is made of copper tubing with good thermal conductivity.

[0008] Furthermore, the suction assembly includes a partition ring connected to the protective cover; a suction groove is formed between the outer side of the partition ring and the inner wall of the protective cover; a suction tube is fixed to the laser emitter; and the suction tube communicates with the suction groove.

[0009] Furthermore, the splitting assembly includes a connecting frame connected to the fixed block; an electric push rod is fixedly attached to the lower side of the connecting frame; and a cutting head is fixedly attached to the telescopic rod of the electric push rod.

[0010] Furthermore, it also includes a three-way tube; the suction tube is connected to the three-way tube; one suction port of the three-way tube is connected to the suction groove; the other suction port of the three-way tube is fixedly connected to a suction head, which is flared; and the suction head is located in front of the cutting head.

[0011] Furthermore, the separator ring is constricted.

[0012] Furthermore, the rubber sleeve is made of silicone rubber.

[0013] Furthermore, it also includes a pressing roller; the pressing roller is rotatably connected to the front side of the connecting frame.

[0014] Furthermore, a sponge layer is sleeved on the outer side of the pressing roller.

[0015] The beneficial effects of this invention are as follows: When the laser emitter completes the dicing and resetting, the cutting head is driven downward by the electric push rod, so that the cutting head comes into contact with the stress groove formed after the dicing and resetting. Then, when the laser emitter moves and resets, the cutting head applies mechanical force to the laser cutting stress groove, causing it to crack completely, thus achieving the splitting of the blade. This solves the problem of low processing efficiency and easy damage during secondary alignment and processing caused by laser dicing and mechanical splitting being independent processes in traditional display screen cutting. First, cooling gas is supplied to the connecting pipe via an external gas pump. The gas is then guided to the laser-affected area through a blowing channel, achieving immediate air cooling. Second, the rubber sleeve contacts the cutting area, absorbing its heat. Simultaneously, circulating coolant flows within the cavity, cooling the rubber sleeve and continuously removing heat from the substrate through heat transfer. This multi-stage cooling method, combining air cooling, contact conduction, and liquid cooling, significantly improves cooling efficiency and effectively solves the problem of residual heat accumulation in the cutting area leading to stress relaxation, which in turn causes irregular cracking and reduces the yield of cracked wafers. In addition, during the discharge process, the coolant flowing through the drain pipe exchanges heat with the gas in the air blowing groove through the copper pipe wall, pre-cooling the gas and thus enhancing the final cooling effect of the gas on the cutting area. When the control panel moves the fixed block, the rubber sleeve will cause the belt to rotate around the sealing plate due to friction, thus transforming the original "sliding friction" into "rolling friction". This reduces the pressure and relative scratching on the rubber sleeve and the glass substrate, preventing damage to the glass substrate and increasing the service life of the rubber sleeve. At the same time, different areas of the rubber sleeve alternately contact the cut areas of the display glass substrate, improving the overall cooling effect. It also makes the force and heat distribution of each area of ​​the rubber sleeve more uniform, significantly reducing the risk of deformation and aging caused by local high temperature, and extending its service life. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the intelligent cutting equipment for display screen production according to the present invention; Figure 2 This is a three-dimensional structural diagram of the laser emitter, protective cover, fixing block, connecting frame and pressing roller assembly of the present invention. Figure 3 This is a three-dimensional structural diagram of the protective cover, fixing block, rubber sleeve, wiping block and cutting head assembly of the present invention; Figure 4 This is a three-dimensional structural diagram of the combination of the protective cover, fixing tube, partition ring suction tube and tee tube of the present invention; Figure 5 This is a cross-sectional view of the belt and rubber sleeve of the present invention; Figure 6 This is an exploded view of the fixed shaft, sealing plate, belt, rubber sleeve, inlet pipe, and outlet pipe of the present invention.

[0017] Reference numerals: 1-Control console, 2-Laser emitter, 101-Protective cover, 10101-Air blowing channel, 10102-Suction channel, 102-Fixing pipe, 103-Separating ring, 104-Motor, 105-Driving gear, 106-Driven gear, 107-Fixing block, 108-Fixing shaft, 109-Sealing plate, 201-Belt, 202-Rubber sleeve, 20201-Cavity, 203-Pressing roller, 204-Inlet pipe, 205-Drain pipe, 206-Suction pipe, 207-T-connector, 20701-Suction head, 208-Connecting frame, 209-Cutting head, 210-Electric push rod. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the accompanying drawings.

[0019] Example 1: An intelligent cutting device for display screen production, such as... Figures 1-6 As shown, it includes a control console 1 and a laser emitter 2; the laser emitter 2 is installed on the control console 1, and the control console 1 drives the laser emitter 2 to move in multiple directions to complete the cutting operation of the display glass substrate. It also includes a protective cover 101, a fixing tube 102, a fixing block 107, a rotating assembly, a cooling assembly, a suction assembly, and a sharding assembly; the protective cover 101 is rotatably connected to the lower side of the laser emitter 2; the rotating assembly is connected to the laser emitter 2; the fixing tube 102 is fixedly connected to the lower side of the laser emitter 2, and the protective cover 101 is located outside the fixing tube 102; a connecting pipe is provided on the laser emitter 2; an air blowing groove 10101 is formed between the protective cover 101 and the fixing tube 102, and the air blowing groove 10101 communicates with the connecting pipe on the laser emitter 2; the fixing block 107 is fixedly connected to the lower side of the protective cover 101; a cooling assembly is connected to the fixing block 107; a suction assembly is connected to the laser emitter 2; and a sharding assembly is connected to the fixing block 107.

[0020] The rotating assembly includes a motor 104, a drive gear 105, and a driven gear 106; the motor 104 is fixedly connected to the laser emitter 2; the drive gear 105 is fixedly connected to the output end of the motor 104; the driven gear 106 is fixedly connected to the outside of the protective cover 101; the drive gear 105 and the driven gear 106 mesh with each other.

[0021] The cooling assembly includes a fixed shaft 108, a sealing plate 109, a belt 201, a rubber sleeve 202, an inlet pipe 204, and an outlet pipe 205; two fixed shafts 108 are fixedly connected inside the fixed block 107; all the fixed shafts 108 are jointly fixedly connected to two symmetrical sealing plates 109; a belt 201 is rotatably connected to the outside of each sealing plate 109; a rubber sleeve 202 is jointly fixedly connected to the outside of the two belts 201; all the sealing plates 109, belts 201, and rubber sleeves 202 surround... The system is assembled to form a sealed cavity 20201; an inlet pipe 204 is fixedly connected to the sealing plate 109 on the left side; a drain pipe 205 is fixedly connected to the sealing plate 109 on the right side; both the inlet pipe 204 and the drain pipe 205 are connected to the cavity 20201; the drain pipe 205 is spirally sleeved on the protective cover 101; the drain pipe 205 penetrates the protective cover 101 and comes into contact with the gas in the air blowing groove 10101, wherein the section of the drain pipe 205 on the protective cover 101 is made of copper.

[0022] The suction assembly includes a partition ring 103 and a suction tube 206; the partition ring 103 is fixedly connected to the lower inner wall of the protective cover 101; a suction groove 10102 is formed between the outer side of the partition ring 103 and the inner wall of the protective cover 101; a suction tube 206 is fixedly connected to the laser emitter 2; the suction tube 206 is connected to the suction groove 10102.

[0023] The slicing assembly includes a connecting frame 208, a cutting head 209, and an electric push rod 210; the connecting frame 208 is bolted to the fixing block 107; the electric push rod 210 is bolted to the lower side of the connecting frame 208; the cutting head 209 is fixed to the telescopic rod of the electric push rod 210.

[0024] In this embodiment, during the cutting operation, the laser emitted by the laser emitter 2 passes through the fixing tube 102 and shines on the surface of the display glass substrate. The control console 1 drives the laser emitter 2 to move from front to back to perform vertical cutting on the display glass substrate. The control console 1 also drives the laser emitter 2 to move from right to left to perform horizontal cutting on the display glass substrate, thereby cutting the large-size display glass substrate into multiple panels to be separated. Initially, the cutting head 209 does not contact the display glass substrate. When cutting the display glass substrate, the control console 1 first drives the laser emitter 2 to move from front to back, and then the laser emitter 2 performs vertical dicing cutting. Using a top-down view as a reference, the motor 104 drives the drive gear 105 to rotate clockwise, which in turn drives the driven gear 106 and the protective cover 101 to rotate counterclockwise, thus moving the fixing block 107 and the connecting bracket 20... The laser emitter 209 and the laser control console 1 rotate 90° counterclockwise around the fixed tube 102, thereby rotating the laser emitter 209 to the right of the fixed tube 102. Then, the laser emitter 2 moves from right to left through the control console 1, and performs horizontal dicing and cutting operations through the laser emitter 2. After each dicing and cutting operation is completed, the laser emitter 209 is driven to move downward through the electric push rod 210, so that the laser emitter 209 contacts the stress groove formed after dicing and cutting. Then, the control console 1 drives the laser emitter 2 and the laser emitter 209 to move in the opposite direction along the movement trajectory during cutting and reset. When the laser emitter 2 moves in the opposite direction and resets, the laser emitter 209 directly scrapes open the stress groove. In this way, the dicing operation is performed directly after laser cutting, which solves the problem of low processing efficiency and easy damage during secondary alignment and processing caused by laser dicing and mechanical dicing as independent processes in traditional display screen cutting.

[0025] Furthermore, considering that the temperature in some areas can reach 300-500℃ during laser scribing, if the residual heat is not dissipated in time, it will slowly conduct to the core functional layer of the display screen, causing the functional layer to age due to heat and produce hidden damage (which may lead to problems such as black screen and touch failure later on); more importantly, if the cutting head 209 is used directly for cleaving after scribing, the residual heat in the laser scribing area cannot be dissipated at this time. The residual heat will accelerate the stress relaxation at the stress groove, weaken the stress concentration effect during cleaving, and thus cause irregular cracking, which seriously reduces the pass rate of cleaving operation; therefore, before the cutting operation, the connecting pipe on the laser emitter 2 and the external input The air pump is connected, the inlet pipe 204 is connected to the outlet of the external water pump, the outlet pipe 205 is connected to the external cooling device, and the external cooling device is connected to the inlet of the water pump. During the cutting operation, gas is supplied to the connecting pipe on the laser emitter 2 through the external air pump. The gas then enters the air blowing groove 10101 and is blown into the cutting area from the lower side of the air blowing groove 10101 to cool the cutting area. However, considering that during the cutting operation, the laser will generate slight energy coupling with the inner wall of the fixed tube 102 during transmission, causing the temperature of the fixed tube 102 to rise continuously, the gas entering the air blowing groove 10101... The rubber sleeve 202 absorbs heat from the fixing tube 102 and heats up, significantly reducing the cooling effect on the cutting area. Therefore, during the cutting operation, the rubber sleeve 202 comes into contact with the dicing cutting area of ​​the display glass substrate, absorbing heat from the cutting area. At the same time, coolant is delivered into the cavity 20201 through an external water pump and inlet pipe 204, cooling the rubber sleeve 202. This coolant then carries away the heat from the dicing cutting area of ​​the display glass substrate through heat transfer, thereby cooling the stress groove area. Afterward, the coolant is extracted from the cavity 20201 through an external water pump and drain pipe 205, creating a circulating flow within the cavity 20201. The coolant greatly improves the cooling efficiency of the stress groove area, which effectively solves the stress relaxation problem caused by the accumulation of residual heat during cutting, ensures the stress concentration required during dicing, avoids irregular cracking, and improves the pass rate of dicing operations. At the same time, the coolant flowing through the drain pipe 205 exchanges heat with the gas in the air blowing groove 10101 through the copper pipe wall during the discharge process, realizing the pre-cooling of the gas, thereby improving the final cooling effect of the gas on the cutting area. The coolant that enters the cooling equipment is cooled and then sent back to the inlet pipe 204 through the external water pump, so that the coolant can circulate.

[0026] Furthermore, considering that when the control console 1 moves the fixing block 107, the rubber sleeve 202 is in contact with the glass substrate of the display screen. The rubber material is prone to generating large frictional force when in contact with the glass surface, which causes the rubber sleeve 202 to be subjected to continuous pressure and even relative scratching, resulting in damage and deformation of the rubber sleeve 202 and even damage to the glass substrate. Therefore, when the control console 1 moves the fixing block 107, the rubber sleeve 202 will drive the belt 201 to rotate around the sealing plate 109 due to the frictional force, thereby transforming the original "sliding friction" into "rolling friction". This reduces the pressure and relative scratching on the rubber sleeve 202 and the glass substrate, avoids damage to the glass substrate, and improves the service life of the rubber sleeve 202. In addition, the rotation process causes different areas of the rubber sleeve 202 to alternately contact the cutting area, avoiding long-term exposure of a single area to residual heat from cutting. This ensures that the heat in the cooling area is evenly dissipated, improving the overall cooling effect, and also makes the force and heat distribution of each area of ​​the rubber sleeve 202 more uniform, significantly reducing the risk of deformation and aging caused by local high temperature and extending its service life.

[0027] Furthermore, before the cutting operation, the suction pipe 206 is connected to an external suction pump. During the cutting operation, the external suction pump draws through the suction pipe 206, thereby generating suction force in the suction groove 10102 to remove the debris generated during cutting, thus preventing debris from remaining on the display glass substrate and affecting subsequent cooling and sharding.

[0028] In a further preferred embodiment of the present invention, such as Figures 2-4 As shown, it also includes a three-way pipe 207; the suction pipe 206 is connected to the three-way pipe 207; one suction port of the three-way pipe 207 is connected to the suction groove 10102; the other suction port of the three-way pipe 207 is fixedly connected to a suction head 20701, which is flared; and the suction head 20701 is located in front of the cutting head 209.

[0029] In this embodiment, when the external suction pump is used to suction the suction pipe 206, the airflow is transmitted to the suction groove 10102 through the three-way pipe 207 to remove the debris generated during cutting. At the same time, suction is also formed at the suction head 20701, so that the debris generated during the splitting operation is simultaneously sucked up when the cutting head 209 is performing the splitting operation.

[0030] In a further preferred embodiment of the present invention, such as Figure 4 As shown, the separator ring 103 is constricted.

[0031] In this embodiment, the gas blown out from the blowing groove 10101 is guided by the constricted partition ring 103, so that the gas is concentrated and blown into the cutting area of ​​the display glass substrate, thereby improving the cooling effect. In addition, the constricted partition ring 103 makes the suction groove 10102 flared, thereby improving the suction effect of debris in the cutting area.

[0032] In a further preferred embodiment of the present invention, the rubber sleeve 202 is made of silicone rubber.

[0033] In this embodiment, the rubber sleeve 202 is resistant to high temperature and has a long service life.

[0034] Example 2: Based on Example 1, such as Figure 2 and Figure 3 As shown, it also includes a pressing roller 203; the pressing roller 203 is rotatably connected to the front side of the connecting frame 208.

[0035] In this embodiment, when the cutting head 209 performs shard cutting, the pressing roller 203 contacts the display glass substrate and, in conjunction with the rubber sleeve 202, compacts the display glass substrate at both ends of the cutting head 209, forming a stable structure of "compacted on both sides and sharded in the middle". This structure can firmly adhere the display glass substrate to the bearing surface, preventing the glass substrate from lifting or shifting during shard cutting. It ensures that the force applied by the cutting head 209 is completely transmitted along the stress groove, and the glass strictly cracks along the preset stress groove, preventing shard cutting deviation and edge chipping, thus improving the shard cutting effect.

[0036] In a further preferred embodiment of the present invention, a sponge layer is sleeved on the outer side of the pressing roller 203.

[0037] In this embodiment, the sponge layer is soft and elastic, which can firmly press the substrate without putting hard pressure on the glass surface and functional layer, and at the same time avoid scratches when the pressing roller 203 rotates, thus meeting the high-precision processing requirements of all specifications of display substrates.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A smart cutting device for display screen production, comprising a control console (1) and a laser emitter (2); the laser emitter (2) is mounted on the control console (1); characterized in that, It also includes a protective cover (101) connected to the laser emitter (2); a rotating assembly for driving the protective cover (101) to rotate is connected to the laser emitter (2); a fixed tube (102) is fixed to the laser emitter (2), and the protective cover (101) is located outside the fixed tube (102); a connecting tube is provided on the laser emitter (2); an air blowing groove (10101) is formed between the protective cover (101) and the fixed tube (102), and the air blowing groove (10101) is connected to the connecting tube; a fixed block (107) is fixed to the protective cover (101); a cooling assembly for cooling the laser cutting area is connected to the fixed block (107); a suction assembly for sucking up the cutting residue is connected to the laser emitter (2); and a splitting assembly for separating the panel is connected to the fixed block (107).

2. The intelligent cutting equipment for display screen production according to claim 1, characterized in that, The rotating assembly includes a motor (104) connected to the laser emitter (2); a drive gear (105) is fixed to the output end of the motor (104); a driven gear (106) is fixed to the outside of the protective cover (101); the drive gear (105) meshes with the driven gear (106).

3. The intelligent cutting equipment for display screen production according to claim 1, characterized in that, The cooling assembly includes several fixed shafts (108) connected within a fixed block (107); all fixed shafts (108) are fixedly connected to two symmetrical sealing plates (109); each sealing plate (109) is rotatably connected to a belt (201) on its outer side; a rubber sleeve (202) is fixedly connected to the outer side of the two belts (201); all the sealing plates (109), belts (201), and rubber sleeves (202) enclose a sealed cavity (20201); a sealing plate (109) is fixedly connected to a belt (20101). A liquid inlet pipe (204) is connected to the cavity (20201); another sealing plate (109) is fixedly connected to a drain pipe (205) connected to the cavity (20201); the drain pipe (205) is arranged in a spiral winding manner outside the protective cover (101), and at least part of the pipe section penetrates the wall of the protective cover (101), so that its internal flow channel can exchange heat with the gas in the air blowing tank (10101), wherein the section of the drain pipe (205) on the protective cover (101) is made of copper pipe.

4. The intelligent cutting equipment for display screen production according to claim 1, characterized in that, The suction assembly includes a partition ring (103) connected to the protective cover (101); a suction groove (10102) is formed between the outer side of the partition ring (103) and the inner wall of the protective cover (101); a suction tube (206) is fixedly connected to the laser emitter (2); the suction tube (206) communicates with the suction groove (10102).

5. The intelligent cutting equipment for display screen production according to claim 1, characterized in that, The slicing assembly includes a connecting frame (208) connected to a fixed block (107); an electric push rod (210) is fixedly attached to the lower side of the connecting frame (208); and a cutting head (209) is fixedly attached to the telescopic rod of the electric push rod (210).

6. The intelligent cutting equipment for display screen production according to claim 5, characterized in that, It also includes a three-way tube (207); the suction tube (206) is connected to the three-way tube (207); one suction port of the three-way tube (207) is connected to the suction groove (10102); the other suction port of the three-way tube (207) is fixedly connected to a suction head (20701), the suction head (20701) is flared; and the suction head (20701) is located in front of the cutting head (209).

7. The intelligent cutting equipment for display screen production according to claim 4, characterized in that, The separator ring (103) is constricted.

8. The intelligent cutting equipment for display screen production according to claim 3, characterized in that, The rubber sleeve (202) is made of silicone rubber.

9. The intelligent cutting equipment for display screen production according to claim 5, characterized in that, It also includes a pressing roller (203); the pressing roller (203) is rotatably connected to the front side of the connecting frame (208).

10. The intelligent cutting equipment for display screen production according to claim 9, characterized in that, A sponge layer is sleeved on the outside of the pressing roller (203).

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