Laser film removal equipment and film removal method

Abstract

The present invention discloses a laser film removal device, comprising a frame, a transmission mechanism, a handling mechanism and a laser film removal mechanism: the transmission mechanism is arranged on the frame, and is used to transmit the workpiece; the laser film removal mechanism is used to remove the film layer of the workpiece; the handling mechanism comprises a bending arm, a flip assembly, and an arm moving assembly; the bending arm is provided with a plurality of suction cups, and the suction cups are used to adsorb on the bottom surface of the workpiece; the flip assembly is used to drive the bending arm to flip a preset angle, so that the workpiece is flipped to a vertical state; the arm moving assembly comprises an arm moving guide rail, an arm moving slider arranged on the arm moving guide rail, and an arm moving drive assembly, the bending arm is arranged on the arm moving slider, and the arm moving drive assembly drives the arm moving slider and the bending arm to slide along the arm moving guide rail, so as to move out of the transmission path of the transmission mechanism. The present invention also discloses a method for laser film removal using the laser film removal device. The laser film removal device and the film removal method provided by the present invention have small deformation of the workpiece and good film removal effect.

Description

Technical Field

[0001] The present invention relates to the technical field of film removal equipment, and in particular to a laser film removal equipment and a film removal method. Background Art

[0002] Coated glass is glass surface coated with one or more layers of metal, alloy or metal compound film to change the optical properties of the glass to meet certain specific requirements.

[0003] Coated glass can be divided into the following categories according to the different characteristics of the products: heat-reflective glass, low-emissivity glass, conductive film glass, etc. Heat-reflective glass is generally coated with one or more layers of thin films composed of metals such as chromium, titanium or stainless steel or their compounds on the glass surface, which makes the product rich in color, has appropriate transmittance for visible light, has high reflectivity for infrared rays, and has high absorptivity for ultraviolet rays. Therefore, it is also called sunlight control glass and is mainly used in buildings and glass curtain walls; low-emissivity glass is a thin film system composed of multiple layers of metals such as silver, copper or tin or their compounds coated on the glass surface. The product has high transmittance for visible light, high reflectivity for infrared rays, and good heat insulation performance. It is mainly used in buildings and transportation vehicles such as automobiles and ships. Due to the poor strength of the film layer, it is generally made into hollow glass for use; conductive film glass is a conductive film such as indium tin oxide coated on the glass surface, which can be used for heating, defrosting, defogging of glass and as a liquid crystal display screen, etc.

[0004] There are many methods for producing coated glass, mainly vacuum magnetron sputtering, vacuum evaporation, chemical vapor deposition and sol-gel. Magnetron sputtering coated glass can design and manufacture multi-layer complex film systems using magnetron sputtering technology, and can be coated with a variety of colors on a white glass substrate. The film layer has good corrosion resistance and wear resistance, and is currently one of the most produced and used products. There is a certain gap between the variety and quality of vacuum evaporation coated glass and magnetron sputtering coated glass, and it has been gradually replaced by vacuum sputtering. Chemical vapor deposition is to introduce reactive gas into the float glass production line to decompose on the hot glass surface and evenly deposit on the glass surface to form coated glass. The characteristics of this method are low equipment investment, easy regulation, low product cost, good chemical stability, and can be hot processed. It is one of the most promising production methods at present. The sol-gel method is simple to produce coated glass with good stability. The disadvantage is that the product light transmittance is too high and the decorative effect is poor.

[0005] Coated glass is mainly removed by laser. However, curved coated glass is easily deformed under the action of gravity, especially large-format curved coated glass. After deformation, the laser focus cannot be concentrated on the coating layer, affecting the removal effect. Summary of the invention

[0006] The object of the present invention is to provide a laser film removal device and a film removal method, which has small deformation of the workpiece and good film removal effect.

[0007] The technical solution adopted by the laser film removal equipment disclosed in the present invention is:

[0008] A laser film removal device comprises a frame, a conveying mechanism, a handling mechanism and a laser film removal mechanism: the conveying mechanism is arranged on the frame and is used to convey the workpiece; the laser film removal mechanism is used to remove the film layer of the workpiece; the handling mechanism comprises a bending arm, a flipping assembly and an arm moving assembly; the bending arm is provided with a plurality of suction cups, and the suction cups are used to adsorb on the bottom surface of the workpiece; the flipping assembly is used to drive the bending arm to flip a preset angle, so as to flip the workpiece to a vertical state; the arm moving assembly comprises an arm moving guide rail, an arm moving slider arranged on the arm moving guide rail and an arm moving drive assembly, the bending arm is arranged on the arm moving slider, and the arm moving drive assembly drives the arm moving slider and the bending arm to slide along the arm moving guide rail, so as to move out of the conveying path of the conveying mechanism.

[0009] As a preferred solution, the arm moving drive assembly includes an arm moving motor, an arm moving screw and a screw nut sleeved on the arm moving screw; the arm moving screw is a forward and reverse screw, two groups of the screw nuts are respectively arranged on the positive thread segment and the reverse thread segment of the forward and reverse screw, two groups of the arm moving sliders are correspondingly arranged on the screw nut, and two groups of the bending arms are respectively arranged on the arm moving slider.

[0010] As a preferred solution, the flipping assembly is arranged above the conveying mechanism and away from the laser film removal mechanism. The flipping assembly includes a flipping motor and a flipping block which is transmission-connected to the flipping motor. The moving arm driving assembly is arranged on the flipping block. The flipping motor drives the flipping block to flip, and the bending arm and the moving arm driving assembly follow the flipping block to flip.

[0011] As a preferred solution, the bending arm comprises a vertical section and a horizontal section connected to each other, and the suction cup is arranged on the horizontal section of the bending arm.

[0012] As a preferred solution, at least one of the laser film removal mechanism and the conveying mechanism is arranged on an X-axis displacement module, and the distance between the laser film removal mechanism and the conveying mechanism is adjusted by the X-axis displacement module.

[0013] As a preferred solution, the transport mechanism further comprises a dust suction device, wherein the dust suction device comprises a dust suction port, and the dust suction port is close to the coating side of the workpiece.

[0014] As a preferred embodiment, a correction mechanism is further included, which is arranged on the frame and located on the conveying path of the conveying mechanism. The correction mechanism includes a first correction component set in a first direction and a second correction component set in a second direction. The first correction component is used to correct the workpiece in the first direction, and the second correction component is used to correct the workpiece in the second direction. The first direction intersects with the second direction.

[0015] As a preferred solution, the first direction is the X-axis direction, and the second direction is the Y-axis direction; the first correction component and the second correction component both include a correction moving module, a correction lifting module arranged on the correction moving module, and a limit member, the correction lifting module drives the limit member to extend upward, and the correction moving module drives the limit member to move.

[0016] As a preferred embodiment, the laser film removal mechanism includes a laser emitter, a first reflector, a second reflector, a galvanometer, and a Z-axis lifting module; the first reflector and the second reflector are arranged between the laser emitter and the galvanometer, the galvanometer is arranged on the Z-axis lifting module, and the laser emitter emits a laser which is horizontally deflected 90° by the first reflector, then deflected upward 90° by the second reflector and then shot into the galvanometer, and then shot out from the galvanometer to the surface of the workpiece film.

[0017] The present invention also discloses a method for laser film removal using a laser film removal device, comprising the following steps: transporting the glass with the film-coated side facing upward to a conveying mechanism; the suction cup on the bending arm adsorbs on the bottom surface of the glass; the flipping component drives the bending arm to flip a preset angle to flip the glass to a vertical state; the laser film removal mechanism emits a laser, and the laser penetrates the glass and then focuses on the film layer to remove the film; the flipping component drives the bending arm to flip in the opposite direction at a preset angle to put the glass back to the conveying mechanism; the arm driving component drives the arm slider and the bending arm to slide along the arm guide rail, thereby moving out of the conveying path of the conveying mechanism; the conveying mechanism moves the glass out.

[0018] The beneficial effects of the laser film removal equipment and film removal method disclosed in the present invention are as follows: the workpiece enters from one end of the conveying mechanism and is conveyed by the conveying mechanism to the top of the suction cup of the bending arm, the suction cup is adsorbed on the bottom surface of the workpiece, and the flipping component drives the bending arm to flip to a preset angle, and the workpiece adsorbed by the suction cup is flipped to a vertical state. The workpiece in this state will not be significantly deformed due to gravity. The laser film removal mechanism works and removes the film layer of the workpiece. The flipping component drives the bending arm to flip in the opposite direction, so that the workpiece to be removed is placed on the conveying mechanism, and the arm drive component drives the arm slider and the bending arm to slide laterally along the arm guide rail to move out of the conveying path of the workpiece, and the workpiece to be removed is moved out by the conveying mechanism. This equipment greatly reduces the deformation of the workpiece by flipping the workpiece to be removed, and the film removal effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1It is a schematic structural diagram of the laser film removal equipment of the present invention.

[0020] Figure 2 It is a front view of the laser film removal equipment of the present invention.

[0021] Figure 3 It is a structural schematic diagram of the laser film removal mechanism and the gantry bracket of the laser film removal equipment of the present invention.

[0022] Figure 4 It is a structural schematic diagram of the laser film removal mechanism of the laser film removal equipment of the present invention from another perspective.

[0023] Figure 5 It is a structural schematic diagram of the conveying mechanism of the laser film removal equipment of the present invention.

[0024] Figure 6 It is a structural schematic diagram of the conveying mechanism of the laser film removal equipment of the present invention from another perspective (without dust suction device).

[0025] Figure 7 It is a structural schematic diagram of the frame, transmission mechanism and correction mechanism of the laser film removal equipment of the present invention.

[0026] Figure 8 It is a structural schematic diagram of the first correction component of the laser film removal equipment of the present invention. DETAILED DESCRIPTION

[0027] The present invention will be further described and illustrated below in conjunction with specific embodiments and accompanying drawings:

[0028] Please refer to Figure 1 and Figure 2 A laser film removal device includes a frame 10, a transmission mechanism 20, a handling mechanism 30 and a laser film removal mechanism 40.

[0029] The frame 10 is composed of a square tube and a sheet metal. The conveying mechanism 20, the handling mechanism 30 and the laser film removal mechanism 40 are all arranged on the frame 10. The conveying mechanism 20 is used to convey the workpiece 60. The laser film removal mechanism 40 is used to remove the film layer of the workpiece 60.

[0030] Please refer to Figure 5 and Figure 6The transport mechanism 30 includes a bending arm 31, a flip assembly 32, and an arm moving assembly 33. The bending arm 31 is provided with a plurality of suction cups 311, and the suction cups 311 are used to be adsorbed on the bottom surface of the workpiece 60. The flip assembly 32 is used to drive the bending arm 31 to flip a preset angle, so that the workpiece 60 is flipped to a vertical state. The arm moving assembly 33 includes an arm moving guide rail 331, an arm moving slider 332 provided on the arm moving guide rail 331, and an arm moving driving assembly 333. The bending arm 31 is provided on the arm moving slider 332, and the arm moving driving assembly 333 drives the arm moving slider 332 and the bending arm 31 to slide along the arm moving guide rail 331, so as to move out of the transport path of the transport mechanism 20.

[0031] The bending arm 31 is L-shaped, including a vertical section 312 and a horizontal section 313. The suction cup 311 is disposed on the horizontal section 313 of the bending arm 31. A vacuum sensor is provided to determine whether the workpiece 60 is sucked.

[0032] After the bending arm 31 is flipped 90°, the workpiece thereon will be directly lifted to a certain height, which is related to the length of the vertical section 312 of the bending arm 31. Therefore, a lifting mechanism is directly omitted through the flip assembly 32, thereby reducing costs.

[0033] The arm moving drive assembly 333 includes an arm moving motor 3331, an arm moving lead screw 3332, and a lead screw nut 3333 sleeved on the arm moving lead screw 3332. The arm moving lead screw 3332 is a positive lead screw, two groups of the lead screw nuts 3333 are respectively arranged on the positive lead section and the negative lead section of the positive lead screw, two groups of the arm moving sliders 332 are correspondingly arranged on the lead screw nuts 3333, and two groups of the bending arms 31 are respectively arranged on the arm moving sliders 332.

[0034] The rotation of the arm moving motor 3331 is transmitted to the turbine provided on the arm moving lead screw 3332 through the worm. When the turbine rotates, the arm moving lead screw 3332 rotates accordingly, thereby driving the two sets of lead screw nuts 3333 to move closer to or farther away from each other. When the workpiece 60 to be defilmed is placed on the conveying mechanism 20, the arm moving motor 3331 drives the lead screw to rotate in the opposite direction, so that the two sets of lead screw nuts 3333 move away from each other, and the two sets of bending arms 31 also move away from each other accordingly, thereby making way for the conveying path in the middle of the conveying mechanism 20, and the conveying mechanism 20 works to move out the workpiece 60 that has been defilmed. It should be noted that the conveying path is determined by the width of the workpiece 60, that is, it is only necessary to move the two sets of bending arms 31 out of the width range of the workpiece 60 to avoid interference between the bending arms 31 and the workpiece 60.

[0035] The flip assembly 32 is arranged above the conveying mechanism 20 and away from the laser film removal mechanism 40. The flip assembly 32 includes a flip motor 321 and a flip block 322 connected to the flip motor 321. The arm moving drive assembly 333 is arranged on the flip block 322. The flip motor 321 drives the flip block 322 to flip. The bending arm 31 and the arm moving drive assembly 333 follow the flip block 322 to flip 90°. Specifically, the flip block 322 includes a flip plate 3221 and a square tube 3222 arranged on the flip plate 3221. The arm moving guide rails 331 of the arm moving drive assembly 333 are arranged on the flip plate 3221 on both sides of the square tube 3222.

[0036] At least one of the laser film removal mechanism 40 and the conveying mechanism 30 is disposed on the X-axis displacement module 34, and the distance between the laser film removal mechanism 40 and the conveying mechanism 30 is adjusted by the X-axis displacement module 34, so that the laser focus is focused on the film layer of the workpiece. In this embodiment, the X-axis displacement module 34 is disposed between the frame 10 and the conveying mechanism 30.

[0037] The transport mechanism 30 further includes a dust suction device 35, and the dust suction device 35 includes a dust suction port, and the dust suction port is close to the coated side of the workpiece 60. During the laser film removal process, the film layer is gasified, and the gas can be sucked in through the dust suction port.

[0038] Please refer to Figure 7 and Figure 8 The laser film removal device further includes a correction mechanism 50. The correction mechanism 50 is disposed on the frame 10 and is located on the conveying path of the conveying mechanism 20. The correction mechanism 50 includes a first correction component 51 disposed in a first direction and a second correction component 52 disposed in a second direction. The first correction component 51 is used to correct the workpiece 60 in the first direction, and the second correction component 52 is used to correct the workpiece 60 in the second direction, and the first direction intersects with the second direction.

[0039] The first direction is the X-axis direction, and the second direction is the Y-axis direction. The first correction assembly 51 and the second correction assembly 52 both include a correction moving module 511, a correction lifting module 512 disposed on the correction moving module 511, and a limiter 513, wherein the correction lifting module 512 drives the limiter 513 to extend upward, and the correction moving module 511 drives the limiter 513 to move.

[0040] The first correction assembly 51 is provided with at least two groups, and the second correction assembly 52 is also provided with at least two groups. In this embodiment, the first correction assembly 51 is provided with three groups, and the second correction assembly 52 is provided with two groups. When the workpiece 60 moves to a preset position on the conveying mechanism 20, the correction lifting module 512 of the first correction assembly 51 and the second correction assembly 52 drives the limiter 513 to extend upward, wherein the limiters 513 of the two groups of the first correction assembly 51 are driven by the correction moving module 511 to move in the positive direction of the first direction, and the limiters 513 of the other group of the first correction assembly 51 are driven by the correction moving module 511 to move in the negative direction of the first direction, thereby correcting the position and deflection angle of the workpiece 60 in the X-axis. At the same time, the limiters 513 of the two groups of the second correction assembly 52 also move relatively, thereby correcting the workpiece 60 in the Y-axis direction.

[0041] The position-limiting member 513 is a wheel, the correction lifting module 512 is a lifting cylinder, and the correction moving module 511 is a prior art, so it is not described in detail. The position-limiting member 513 is arranged on the correction lifting module 512. The correction moving module 511 includes a correction slide 5111, on which a guide rail is arranged, and a slider is arranged on the guide rail. The correction lifting module 512 is arranged on the slider, and also includes a stopper block 5112 arranged at one end of the guide rail, and the stopper block 5112 is used to limit the movement of the slider.

[0042] Please refer to Figure 7 The conveying mechanism 20 includes a plurality of first conveyor belt assemblies 21 and a plurality of second conveyor belt assemblies 22, wherein the first conveyor belt assemblies 21 and the second conveyor belt assemblies 22 are arranged front to back. Among them, the plurality of first conveyor belt assemblies 21 are arranged in parallel and at intervals, and the plurality of second conveyor belt assemblies 22 are arranged in parallel and at intervals. Part of the first correction assembly 51 is arranged between the plurality of first conveyor belt assemblies 21, the remaining part of the first correction assembly 51 is arranged between the plurality of second conveyor belt assemblies 22, and the second correction assembly 52 is arranged between the first conveyor belt assembly 21 and the second conveyor belt assembly 22.

[0043] Among them, the first conveyor belt assemblies 21 are driven by a driving motor, and the second conveyor belt assemblies 22 are driven by a driving motor. Taking the first conveyor belt assembly 21 as an example: the driving motor 211 is connected to a transmission shaft 212 through a transmission belt transmission, and the driving wheels of the first conveyor belt assemblies 21 are all arranged on the transmission shaft 212 and rotate with the transmission shaft 212.

[0044] In order to facilitate the replacement of the belt of the first conveyor belt assembly 21 in the middle, the transmission shaft 212 is divided into multiple sections, a gap is maintained at the connection between the sections, and a coupling transmission is arranged at the gap. When the belt needs to be replaced, the coupling close to it is removed and the belt is taken out from the gap.

[0045] Please refer to Figure 3 and Figure 4 The laser film removal mechanism 40 includes a laser emitter 41, a first reflector 42, a second reflector 43, a galvanometer 44, and a Z-axis lifting module 45. The first reflector 42 and the second reflector 43 are arranged between the laser emitter 41 and the galvanometer 44, and the galvanometer 44 is arranged in the Z-axis lifting module 45. The laser emitted by the laser emitter 41 is horizontally deflected 90° by the first reflector 42, and then deflected 90° upward by the second reflector 43 before entering the galvanometer 44, and then emitted from the galvanometer 44 to the film surface of the workpiece 60. Specifically, the laser enters the first reflector 42 along the Y-axis direction, is reflected by the first reflector 42, and then enters the second reflector 43 along the X-direction. The laser is emitted after multiple reflections, which can be better adjusted, and the debugging process is more efficient.

[0046] The laser emitter 41, the first reflector 42, the second reflector 43, the galvanometer 44, and the Z-axis lifting module 45 are arranged on a gantry bracket 46, and the gantry bracket 46 is arranged on the frame 10. In this embodiment, the gantry bracket 46 is arranged at the feeding end of the conveying mechanism 20, and the transport mechanism 30 is arranged at the discharging end of the conveying mechanism 20.

[0047] The galvanometer 44 is installed on a fine-tuning assembly, and the position of the galvanometer 44 in the X direction is fine-tuned by the fine-tuning assembly. The fine-tuning assembly is arranged on a Z-axis lifting module 45, and the Z-axis lifting module 45 drives the fine-tuning assembly and the galvanometer 44 to rise and fall.

[0048] The laser film removal mechanism 40 also includes a camera alignment component 47, which is also provided on the Z-axis lifting module 45. The camera alignment component 47 is used to take a photo of the processed workpiece 60, and then pass the photo through the system to compare it with the position of the workpiece 60 to be removed by the galvanometer 44, and then calculate it through the computer system. According to the calculation result, the computer compensates the difference according to the program. Therefore, the galvanometer 44 can be automatically calibrated before working. The large-format working range of the galvanometer 44 is 1000mm long*1000mm wide, and the focal length is 1200mm.

[0049] The entire equipment operation process:

[0050] The workpiece is transported along a certain path through the conveying mechanism. When the workpiece passes through the sensor, the sensor feeds back the signal to the central processing system (PLC). The PLC controls the conveying mechanism to stop. At this time, the workpiece stops at the correction mechanism. The three groups of first correction components and the two groups of second correction components move to the middle set position. The wheels contact and push the workpiece to the specified position. The correction mechanism returns, and the PLC determines that the correction is completed at this time.

[0051] The two bending arms automatically adjust their width according to preset parameters to fit the size of the workpiece. Then the two bending arms rotate a small angle to ensure that the suction cups on the two bending arms are adsorbed on the workpiece. Based on the vacuum pressure on the air path on the suction cup, the PLC determines whether the suction cup has adsorbed the workpiece. After the workpiece is adsorbed, the PLC will feedback a signal and proceed to the next step.

[0052] When the suction cup sucks the workpiece, the flip assembly starts to rotate, and when it rotates to the vertical horizontal plane of the workpiece, the flip assembly stops. At this time, the PCL signal is fed back to the industrial computer (PC), and after receiving the designation, the PC proceeds to the next step.

[0053] PC turns on the laser generator. After the laser generator emits the laser, it enters the galvanometer after two reflections. PC can control the galvanometer, set and adjust the speed and working range inside the galvanometer. The galvanometer removes the film layer on the workpiece (destroys / melts / atomizes the coating layer on the workpiece under the high temperature of the laser) to achieve the effect of removing the film. After completing a cycle through parameter setting, proceed to the next step.

[0054] After the film removal range is completed, the signal is fed back to the PC again. After receiving the feedback signal, the PC sends a command, and the flip component starts to rotate in the opposite direction, placing the workpiece back on the conveying mechanism. At this time, the sensor senses the workpiece, and the two bending arms automatically open to both sides to make room for the workpiece output. When the bending arms move to both sides and the processed workpiece is transmitted out, the entire work cycle is completed.

[0055] In the laser film removal equipment disclosed in the present invention, the workpiece 60 enters from one end of the conveying mechanism 20 and is conveyed by the conveying mechanism 20 to the top of the suction cup 311 of the bending arm 31. The suction cup 311 is adsorbed on the bottom surface of the workpiece 60. The flipping assembly 32 drives the bending arm 31 to flip to a preset angle, and the workpiece 60 adsorbed by the suction cup 311 is flipped to a vertical state. In this state, the workpiece 60 will not be significantly deformed due to gravity. The laser film removal mechanism 40 works and removes the film layer of the workpiece 60. The flipping assembly 32 drives the bending arm 31 to flip in the opposite direction, so that the workpiece 60 to be filmed is placed on the conveying mechanism 20 again. The arm drive assembly 333 drives the arm slider 332 and the bending arm 31 to slide horizontally along the arm guide rail 331 to move out of the conveying path of the workpiece 60, and the workpiece 60 to be filmed is moved out by the conveying mechanism 20. By flipping the workpiece 60 to be filmed, the deformation of the workpiece 60 is greatly reduced, and the film removal effect is good.

[0056] This equipment is used when it is necessary to remove a specific coating layer at a certain position on the coated glass. This equipment solves the problem of large-scale curved glass. When supported at four points and placed horizontally, it can solve the problem of deformation to the maximum extent. It also solves the problem of vertical placement of multi-specification glass and the difficulty of lifting curved glass. This equipment effectively removes the coating layer on large curved glass and the graphics that need to be removed.

[0057] The present invention also discloses a method for laser film removal using a laser film removal device, comprising the following steps:

[0058] Step A: The glass is transported to the conveying mechanism 20 with the coated surface facing upward.

[0059] Step B: The suction cup 311 on the bending arm 31 is adsorbed on the bottom surface of the glass.

[0060] Step C: The turning assembly 32 drives the bending arm 31 to turn to a preset angle, so that the glass is turned to a vertical state.

[0061] Step D: The laser film removal mechanism 40 emits a laser, which penetrates the glass and is focused on the film layer to remove the film.

[0062] Step E: The turning assembly 32 drives the bending arm 31 to turn in the opposite direction by a preset angle, and puts the glass back to the conveying mechanism 20 .

[0063] Step F: The arm driving assembly 333 drives the arm sliding block 332 and the bending arm 31 to slide along the arm guiding rail 331 , thereby moving out of the conveying path of the conveying mechanism 20 .

[0064] Step G: The conveying mechanism 20 moves the glass out.

[0065] In step A, when the glass moves to a preset position on the conveying mechanism 20 , the first calibration assembly 51 and the second calibration assembly 52 cooperate to perform positioning and calibration on the position of the glass.

[0066] The laser film removal method disclosed in the present invention uses a laser film removal device to perform laser film removal. The laser's penetrating property to glass and the film's impenetrability are utilized: when the laser passes through transparent glass, the laser cannot pass through the coating layer. At this time, when the energy generated by the laser reaches a certain critical point, the coating layer on the glass can be directly destroyed (melted).

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention, rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. A laser film removal device, characterized in that: It includes a frame, a transmission mechanism, a handling mechanism and a laser film removal mechanism; The conveying mechanism is arranged on the frame and is used to convey the workpiece; The laser film removal mechanism is used to remove the film layer of the workpiece; The transport mechanism includes a bending arm, a flip assembly, and an arm moving assembly; the bending arm is provided with a plurality of suction cups, and the suction cups are used to adsorb on the bottom surface of the workpiece; the flip assembly is used to drive the bending arm to flip a preset angle, so that the workpiece is flipped to a vertical state; The arm moving assembly includes an arm moving guide rail, an arm moving slider disposed on the arm moving guide rail, and an arm moving driving assembly, wherein the bending arm is disposed on the arm moving slider, and the arm moving driving assembly drives the arm moving slider and the bending arm to slide along the arm moving guide rail, thereby moving out of the conveying path of the conveying mechanism; The arm moving drive assembly includes an arm moving motor, an arm moving lead screw, and a lead screw nut sleeved on the arm moving lead screw; The arm-moving screw is a positive and negative screw, the two sets of screw nuts are respectively arranged on the positive and negative sections of the positive and negative screws, the two sets of arm-moving sliders are correspondingly arranged on the screw nuts, and the two sets of bending arms are respectively arranged on the arm-moving sliders; The flip assembly is arranged above the conveying mechanism and away from the laser film removal mechanism. The flip assembly includes a flip motor and a flip block connected to the flip motor. The arm drive assembly is arranged on the flip block. The flip motor drives the flip block to flip. The bending arm and the arm drive assembly flip along with the flip block. It also includes a correction mechanism, which is arranged on the frame and located on the conveying path of the conveying mechanism, and includes a first correction component arranged in a first direction and a second correction component arranged in a second direction, the first correction component is used to correct the workpiece in the first direction, and the second correction component is used to correct the workpiece in the second direction, and the first direction intersects with the second direction; The first direction is the X-axis direction, and the second direction is the Y-axis direction; At least one of the laser film removal mechanism and the transport mechanism is disposed on the X-axis displacement module, and the distance between the laser film removal mechanism and the transport mechanism is adjusted by the X-axis displacement module; The first correction component and the second correction component both include a correction moving module, a correction lifting module arranged on the correction moving module, and a limiter. The correction lifting module drives the limiter to extend upward, and the correction moving module drives the limiter to move.

2. The laser film removal equipment according to claim 1, characterized in that: The bending arm comprises a vertical section and a horizontal section connected to each other, and the suction cup is arranged on the horizontal section of the bending arm.

3. The laser film removal equipment according to claim 1, characterized in that: The transport mechanism further comprises a dust suction device, wherein the dust suction device comprises a dust suction port, and the dust suction port is close to the coating side of the workpiece.

4. The laser film removal equipment according to any one of claims 1 to 3, characterized in that: The laser film removal mechanism includes a laser emitter, a first reflector, a second reflector, a galvanometer, and a Z-axis lifting module; The first reflector and the second reflector are arranged between the laser emitter and the galvanometer. The galvanometer is arranged on the Z-axis lifting module. The laser emitted by the laser emitter is horizontally deflected 90° by the first reflector, then deflected 90° upward by the second reflector and then shot into the galvanometer, and then shot out from the galvanometer to the surface of the workpiece film.

5. A method for laser film removal using the laser film removal equipment according to any one of claims 1 to 4, characterized in that: The following steps are involved: The glass is transported to the conveying mechanism with the film-coated side facing upward; The suction cup on the bending arm is attached to the bottom surface of the glass; The turning assembly drives the bending arm to turn to a preset angle, so that the glass turns to a vertical state; The laser film removal mechanism emits laser, which penetrates the glass and focuses on the film layer to remove the film; The turning assembly drives the bending arm to turn in the opposite direction by a preset angle, and puts the glass back to the conveying mechanism; The arm transfer driving assembly drives the arm transfer slider and the bending arm to slide along the arm transfer guide rail, thereby moving out of the transfer path of the transfer mechanism; The conveyor mechanism moves the glass out.

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