Laser chamfering and sand blasting anti-dazzle integrated processing method and system for glass

Abstract

The invention relates to the technical field of glass processing, and discloses a laser chamfering and sand blasting anti-dazzle integrated processing method for glass, which is high in production efficiency, capable of reducing the quality control difficulty and improving the product yield, relatively low in energy consumption, less in used equipment and capable of reducing the equipment maintenance cost and the operation complexity. Comprising the following steps: S1, engraving a chamfer with a preset shape at the edge of a glass sheet in a laser internal engraving manner, and creating a microstructure in the glass; s2, performing sand blasting on the glass sheet to obtain glass with a frosting effect; and S3, setting a liquid polishing formula and process parameters according to the laser internal carving operation parameters, and carrying out liquid polishing treatment on the sand-blasted glass. The invention further discloses a system for implementing the laser chamfering and sand blasting anti-dazzle integrated machining method for the glass.

Description

Technical Field

[0001] The present invention relates to the technical field of glass processing, and in particular to a laser chamfering and sandblasting anti-glare integrated processing method and system for glass. Background Art

[0002] In the process of processing glass panels for electronic devices such as smartphones, tablets, laptops, and car dashboards, it is often necessary to chamfer the edges of the glass and perform anti-glare treatment on the glass surface so that the glass can be connected to the main body of the electronic device and reduce or eliminate the glare on the glass surface, thereby improving the user's viewing experience when using electronic devices. Glass chamfering is usually done by mechanical processing and grinding, while anti-glare treatment is mainly completed by chemical etching or physical sandblasting. The two processes are completely different. Therefore, the chamfering and anti-glare treatment of glass in the industry are usually performed separately. When glass chamfering and anti-glare treatment are performed independently, the multi-step processing requires separate equipment setup and operation, which extends the entire production cycle. The glass needs to be repositioned and adjusted when switching between different workstations, which further extends the glass processing time and reduces glass production efficiency. Secondly, frequent glass transfer and adjustment can easily cause glass positioning errors, and different processing stages may cause uneven material stress, microcracks or other structural defects, resulting in a high product defective rate, which increases the difficulty of product quality control. In addition, the processing will involve a variety of different mechanical equipment and technologies, which increases the complexity of operation and equipment maintenance costs. Finally, multi-stage processing is usually accompanied by higher energy consumption, further increasing the cost of glass processing. Summary of the invention

[0003] Based on this, it is necessary to provide an integrated processing method and system for laser chamfering and sandblasting anti-glare for glass, which has high production efficiency, can reduce the difficulty of quality control and improve product yield, has low energy consumption, uses less equipment and reduces equipment maintenance costs and operation complexity, in order to address the above-mentioned shortcomings.

[0004] A laser chamfering and sandblasting anti-glare integrated processing method for glass comprises the following steps:

[0005] S1. Carve a preset chamfer shape on the edge of the glass sheet by laser engraving and create a microstructure inside the glass;

[0006] S2, sandblasting the glass sheet to obtain glass with a frosted effect;

[0007] S3. Set the liquid polishing formula and process parameters according to the laser inner engraving operation parameters, and perform liquid polishing on the glass after sandblasting.

[0008] In one embodiment, in step S2, the sandblasting water at least includes nano-scale silicon particles with a concentration of 0.05-10% and a D50 of 3-5 um in diameter.

[0009] In one embodiment, in step S3, the liquid blasting agent used in the liquid blasting treatment includes 3-5% by mass HF, 1-2% by mass H 2 SO 4 1-3% NH 4 F and 0.1-0.3% surfactant, the rest is water.

[0010] In one embodiment, in step S3, the liquid blasting agent used in the liquid blasting treatment is a NaOH solution with a concentration of 30-70% and a temperature of 120-150°C.

[0011] In one embodiment, after the liquid polishing, the method further comprises:

[0012] S4, neutralizing and cleaning the glass, removing residual solution on the surface of the glass, and drying the glass;

[0013] S5, detecting the glass frosting effect, and when the glass frosting effect reaches a preset condition, proceeding to step S7; otherwise, proceeding to step S6;

[0014] S6, repeatedly sandblasting the glass until the glass frosting effect reaches a preset condition, removing abrasive particles on the glass surface, cleaning the glass and entering step S7;

[0015] S7. Carry out chamfer inspection and final frosting inspection on the glass.

[0016] The present invention also discloses a system for implementing the above-mentioned laser chamfering and sandblasting anti-glare integrated processing method, the system comprising a laser chamfering inner engraving system and a frosting liquid polishing system connected to the laser chamfering inner engraving system by signal;

[0017] The laser chamfering and inner engraving system comprises a visual positioning module for locating the edge of the glass, a precision control module for receiving the signal sent by the visual positioning module and planning the engraving scanning path through the built-in intelligent path planning software, a laser source module connected to the precision control module by signal and used for emitting laser, and a quality detection module connected to the precision control module by signal and used for detecting the quality of the glass chamfering, wherein the laser source module comprises a laser emission submodule and a chamfering parameter control module for controlling the working parameters of the light emission submodule;

[0018] The frosting liquid polishing system includes a sandblasting subsystem and a liquid polishing subsystem. The sandblasting subsystem includes a sandblasting water jet for spraying sand and water onto the glass; the liquid polishing subsystem includes a liquid polishing tank for containing liquid polishing agent, a concentration monitor for monitoring the concentration of the liquid polishing agent in the liquid polishing tank, a temperature control subsystem connected to the precision control module signal and used to adjust the temperature in the liquid polishing tank, and an environmental control unit for adjusting the liquid polishing environment.

[0019] In one embodiment, the chamfering parameter control module includes a power regulating submodule connected to the precision control module signal and controlling the emission power of the laser emission submodule, and a pulse width regulator connected to the precision control module signal and controlling the pulse width of the laser emission submodule.

[0020] In one of the embodiments, the quality inspection module includes a microscope and a 3D profilometer.

[0021] In one embodiment, the sandblasting subsystem further includes a vacuum adsorption module for vacuum adsorption and fixing of glass, a regulating module for adjusting the sandblasting air pressure and water pressure as well as the angle of the water jet, and a recovery device for recovering sand particles.

[0022] In one embodiment, the environmental control unit includes an air pressure regulator for adjusting the air pressure in the liquid throwing environment and a humidity control device for adjusting the humidity in the liquid throwing environment.

[0023] The integrated laser chamfering and sandblasting anti-glare processing method and system for glass of the present invention have at least the following beneficial effects:

[0024] 1) Integrating chamfering and anti-glare treatment into a continuous process significantly reduces production steps and working hours, reduces the need for intermediate handling and repositioning of glass, speeds up production, reduces the risk of material loss, and improves glass production efficiency.

[0025] 2) Use less equipment and technology, reduce equipment investment and maintenance costs and operational complexity.

[0026] 3) Reduce processing steps and equipment operating time to effectively control overall energy consumption.

[0027] 4) Integrated processing reduces processing errors that may be introduced due to multiple handling and repositioning. Through integrated processing of laser engraving, sandblasting and liquid polishing, the occurrence of structural defects in different processing stages is reduced, the difficulty of product quality control is reduced, and product quality and yield are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a flow chart of a laser chamfering and sandblasting anti-glare integrated processing method in one embodiment of the present invention;

[0029] Figure 2 It is a module structure diagram of a laser chamfering and sandblasting anti-glare integrated processing system in one embodiment of the present invention;

[0030] Figure 3 A working principle diagram of a laser source module in one embodiment of the present invention;

[0031] Figure 4 A working principle diagram of a laser source module in another embodiment of the present invention;

[0032] Figure 5 A module connection diagram of a sandblasting subsystem in one embodiment of the present invention;

[0033] Figure 6 A schematic diagram of the working principle of a water jet in one embodiment of the present invention;

[0034] Figure 7 It is a schematic diagram of the structure of the adjustment module in one embodiment of the present invention. DETAILED DESCRIPTION

[0035] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0036] The present invention discloses an integrated processing method for laser chamfering and sandblasting anti-glare for glass. The processing method is applicable to the processing of various types of glass, including ordinary float glass, tempered glass and laminated glass; it is also applicable to the processing of glass of different thicknesses and specifications, including the processing of ordinary glass with a thickness greater than 0.1 mm and the processing of ultra-thin glass (UTG) with a thickness less than 0.1 mm. For details, please refer to Figure 1 The integrated processing method of laser chamfering and sandblasting anti-glare includes the following steps:

[0037] S1. Use laser engraving to carve a preset chamfer shape on the edge of the glass sheet and create a microstructure inside the glass.

[0038] In this embodiment, the microstructure inside the glass has a preset gradient, that is, the microstructure is gradiently designed along the oblique direction, and the inclination direction of the gradient-designed microstructure is parallel to the inclination direction of the chamfer of the outer edge of the glass, that is, the surface and internal structure of the glass are processed by multi-focus laser engraving, and the microstructure is processed inside the edge of the glass at the same time, and the chamfer is processed outside the edge of the glass. In this way, by controlling the distance from the edge of the microstructure to the wide surface of the glass and to the inclined surface of the glass (the surface formed by the chamfered part) (that is, the distance from the edge of the microstructure to the glass surface) is the same, and the liquid polishing corrosion depth is greater than or equal to the distance from the edge of the microstructure to the glass surface, when the glass is liquid polished, the outer surface of the glass is corroded, and the microstructure originally located inside the glass forms the final chamfer of the glass, so as to achieve the purpose of obtaining the product chamfer at the same time as liquid polishing. In this embodiment, by processing the microstructure inside the edge of the glass sheet and processing the chamfer outside it by laser internal engraving, the stress at the edge of the glass can be effectively dispersed, the strength at the edge of the glass can be enhanced, and the risk of glass breakage can be reduced. In addition, through laser engraving and chamfering, the angle and depth of the chamfer can be precisely controlled to ensure that the glass edge is smooth and defect-free, while compensating for dimensional changes caused by liquid polishing.

[0039] In addition, before laser engraving, the glass needs to be pre-processed. Specifically, use ultrasonic cleaning equipment and special cleaning agents (such as detergent) to remove dust, oil and other impurities on the glass surface; then use high-precision optical inspection equipment to check the thickness uniformity, surface flatness and edge quality of the glass to ensure that the glass meets the processing standards.

[0040] During the process of glass laser engraving, the operating parameters of the glass laser engraving need to be recorded and stored. The operating parameters are used to provide a reference for the subsequent liquid polishing operation so as to adjust the liquid polishing operating parameters. In addition, during the process of laser chamfering of glass, it is also necessary to detect the shape of the glass in real time, and further adjust the laser engraving parameters of the glass according to the detected glass shape parameters, so that the glass after laser engraving meets the requirements of frosting and liquid polishing. Specifically, use a high-resolution microscope and a 3D profilometer to detect the shape, size and surface quality of the chamfer. If deviations are found, fine-tune the laser engraving parameters and repeat the process until the shape and size of the glass after engraving meet the requirements.

[0041] S2. Sandblasting the glass sheet to obtain glass with a frosted effect.

[0042] In this embodiment, by sandblasting the surface of the glass sheet, the roughness and light transmittance of the glass surface can be changed, so that the surface of the glass has an anti-glare effect after processing. In step S2, the sand water for sandblasting at least includes nano-scale silicon particles with a concentration of 0.05-10% and a D50 of 3-5um in diameter. Further, in this embodiment, aluminum oxide or glass beads are selected as abrasive particles for glass sandblasting, that is, aluminum oxide or glass beads are used as the main abrasive for glass sandblasting, which is used to impact the surface of the glass under high-speed motion, so that dents are formed on the glass surface, etc., so as to achieve the purpose of improving the surface roughness of the glass. During the sandblasting operation, the glass surface can be evenly sandblasted by a sandblasting machine, and the sandblasting effect of the glass can be monitored in real time. At the same time, the sandblasting parameters can be adjusted according to the required frosting effect of the glass surface. For example, the frosting effect of the glass surface can be controlled by adjusting the sandblasting air pressure, sandblasting water pressure, sand and water concentration, sandblasting times, nozzle angle, and selecting aluminum oxide or glass beads with preset particle size and flow rate. The setting of nano-scale silicon particles is used to further fine-tune the surface roughness of the glass, thereby improving the accuracy of the glass frosting operation.

[0043] S3. Set the liquid polishing formula and process parameters according to the laser inner engraving operation parameters, and perform liquid polishing on the glass after sandblasting.

[0044] In this embodiment, by liquid polishing the glass with frosted effect after sandblasting, the microcracks on the glass surface formed by sandblasting can be further amplified by chemical solution (liquid polishing agent), thereby further changing the optical characteristics and roughness of the microcracks on the glass surface, so that the performance of the final formed glass surface can meet the anti-glare requirements of the glass. In one embodiment, in step S3, the liquid polishing agent used for liquid polishing includes HF with a mass fraction of 3-5%, H 2 SO 4 1-3% NH 4 F and 0.1-0.3% surfactant, the rest is water; the above liquid polishing is acidic liquid polishing, wherein HF is used to etch glass; H 2 SO 4 Used to enhance the etching effect of HF; NH 4F is used as a buffer to control the etching rate of glass, which creates a stable pH environment for the etching operation of glass, is conducive to the formation of a uniform microporous structure on the glass surface, and thus produces an ideal frosting effect; surfactants are used to ensure uniform etching and control the pore structure. In this embodiment, the synergistic effect of the microcracks generated by the surfactant and the nano-scale silicon particles during sandblasting can accurately control the change in the roughness of the glass surface by controlling the concentration of the surfactant, the parameters of the nano-scale silicon particles, and the sandblasting parameters, so as to achieve accurate regulation of the frosting effect on the glass surface. Preferably, the surfactant can be an anionic surfactant or a cationic surfactant, such as alkylbenzene sulfonate, α-olefin sulfonate, alkyl sulfonate, fatty alcohol sulfate, secondary alkyl sulfate, fatty acid salt, hexadecyl dimethyl ammonium chloride, octadecyl trimethyl ammonium chloride, cationic silicone oil, dodecyl dimethyl amine oxide, cationic panthenol, etc. In another embodiment, in step S3, the liquid polishing agent used for the liquid polishing treatment is a NaOH solution with a concentration of 30-70% and a temperature of 120-150° C.; the above liquid polishing is an alkaline liquid polishing, wherein the NaOH solution reacts with the glass (silicon dioxide) faster at a higher temperature, thereby achieving the purpose of etching the glass.

[0045] It should be noted that, in this embodiment, HF and H 2 SO 4 The NaOH concentration and temperature are precisely controlled to effectively dissolve the microcracks after laser chamfering and smooth the edges, thereby achieving the purpose of splitting the glass sheet, that is, there is no need to set up a splitting process to reduce the operation process.

[0046] During the liquid polishing process, first select a suitable liquid polishing agent, and determine the concentration of the liquid polishing agent according to the type of glass and the desired frosting effect. When the acidic liquid polishing method is selected, use a temperature control system or equipment to preheat the liquid polishing agent to between 40-120°C to accelerate the liquid polishing reaction; when the alkaline liquid polishing method is selected, use a temperature control system or equipment to preheat the liquid polishing agent to between 120-150°C to accelerate the liquid polishing reaction. During liquid polishing, immerse the sandblasted glass in the preheated liquid polishing agent, and control the glass to soak in the liquid polishing agent for 30-300s. It should be noted that in this embodiment, the liquid polishing operation of the glass can be carried out in a liquid polishing tank in which the vibration of the liquid polishing agent is controlled by an ultrasonic device. The uniformity and efficiency of the liquid polishing can be improved by auxiliary processing with ultrasonic equipment.

[0047] After liquid polishing, the integrated processing method of laser chamfering and sandblasting anti-glare also includes:

[0048] S4. Neutralize and clean the glass, remove the residual solution on the surface of the glass, and dry the glass. Specifically, when acidic liquid polishing is used, the glass can be immersed in a 5-10% NaOH solution for 10-30 seconds, and then the glass surface can be ultrasonically cleaned multiple times with deionized water to remove the residual liquid polishing agent and impurities on the glass surface, and the glass can be thoroughly dried using a dust-free hot air drying system to remove moisture on the glass surface. Similarly, when alkaline liquid polishing is used, dilute hydrochloric acid or dilute sulfuric acid can be used to soak the glass for 10-30 seconds, and then the glass can be ultrasonically cleaned multiple times with deionized water, and then the glass can be thoroughly dried using a dust-free hot air drying system.

[0049] S5, detecting the frosted effect of the glass, and when the frosted effect of the glass meets the preset condition, proceeding to step S7; otherwise, proceeding to step S6. In this embodiment, a gloss meter and a surface roughness meter are used to measure the frosted effect of the glass surface, and an anti-glare test device is used to evaluate the anti-glare performance of the glass, for example, a standard light source and an illuminance meter are used to test the anti-glare effect.

[0050] S6, repeatedly sandblast the glass until the frosting effect of the glass reaches the preset conditions, remove the abrasive particles on the glass surface, clean the glass and enter step S7. That is to say, when the frosting effect and anti-glare performance of the glass fail to meet the design requirements, readjust the glass sandblasting parameters and repeatedly sandblast the glass. During the sandblasting process, continuously monitor the surface condition of the glass until the parameters on the glass surface used to characterize the frosting effect and anti-glare performance reach the preset indicators, that is, the repeated sandblasting of the glass is completed. When the glass is repeatedly sandblasted to meet the frosting effect and anti-glare performance, use a dedicated post-processing cleaning equipment (such as a cyclone dust collector or an electrostatic precipitator) to remove the abrasive particles remaining on the glass surface, perform ultrasonic cleaning on the glass, ensure that the glass surface is clean, and then dry the glass.

[0051] S7. Carry out chamfer inspection and final frosting inspection on the glass.

[0052] Specifically, a high-precision 3D scanner is used to measure the size and shape of the chamfer of the glass; an impact test is performed on the glass to evaluate the chamfer strength; a standard light source and illuminance meter are used to test the anti-glare effect of the glass; and a tactile test is performed to ensure that the texture of the frosted surface of the glass meets the requirements.

[0053] Finally, record the processing parameters, test results and quality data of each piece of glass, and establish a complete production traceability system to facilitate subsequent traceability of the glass processing.

[0054] Compared with traditional chemical treatment methods, the above-mentioned integrated processing method of laser chamfering and sandblasting for anti-glare produces less waste during the processing process, eliminates heavy reliance on CNC grinding wheels, coolants, a large amount of energy consumption of traditional machines, polishing fluids, brushes, etc., and has less pollution to the environment; in addition, it improves material utilization, reduces waste generation, reduces production costs, and saves resources. The chamfering and frosting processes are coordinated, and the laser chamfering and sandblasting parameters are adjusted to achieve seamless connection between the two processes, while achieving the completion of the chamfering generation and frosting surface optical effect processes at the same time. In one liquid polishing process, the crack processing after laser chamfering, the optical processing of the frosting effect, and the surface roughness processing are completed simultaneously, reducing processing time and additional processes. The operation process is simplified and integrated, and the laser chamfering and surface sandblasting and frosting liquid polishing processes are effectively integrated to reduce intermediate steps and improve production efficiency.

[0055] Please combine Figure 2-7 The present invention also discloses a system for implementing the above-mentioned laser chamfering and sandblasting anti-glare integrated processing method, which includes a laser chamfering internal engraving system 100 and a frosting liquid polishing system 200 connected to the laser chamfering internal engraving system 100 by signal. Among them, the laser chamfering internal engraving system 100 is used to realize the functions of precise chamfering shape control and internal microstructure creation, and the frosting liquid polishing system 200 realizes the functions of surface treatment and optical effect optimization of glass. The laser chamfering internal engraving system 100 and the frosting liquid polishing system 200 use the same common liquid polishing system working mode to grow cracks. The whole process completes the optical processing and roughness growth of cracks and frosting effects within the same group of liquid polishing time, realizing the integration of processes, achieving the purpose of cracking while controlling the frosting effect on the glass surface by liquid polishing, and adjusting the liquid polishing parameters according to the internal engraving parameters, so as to accurately control the chamfer shape and size of the glass.

[0056] Specifically, in this embodiment, the laser chamfering internal engraving system 100 includes a visual positioning module 110 for locating the edge of the glass, a precision control module 120 for receiving the signal sent by the visual positioning module 110 and planning the engraving scanning path through the built-in intelligent path planning software, a laser source module 130 connected to the precision control module 120 for emitting laser, and a quality detection module 140 connected to the precision control module 120 for detecting the quality of the glass chamfering. The quality detection module 140 includes a microscope and a 3D profiler. The laser source module 130 includes a laser emission submodule 131 and a chamfering parameter control module 132 for controlling the working parameters of the laser emission submodule. Among them, the laser emission submodule 131 can be an optical component composed of a grating or an optical lens with a diffractive optical element (abbreviated as DOE). Its working principle is to decompose the incident light into outgoing light with different diffraction levels (such as Figure 3 In addition, the laser emission submodule 131 may also be an optical device with a spatial light modulator (SLM). The spatial light modulator is an adjustable beam profile. Its working principle is to modulate the light by changing the phase, amplitude or polarization state of each unit in the internal light beam to achieve highly flexible and real-time dynamic changes in the hologram or optical mode (such as Figure 4 shown).

[0057] In this embodiment, the chamfer parameter control module 132 includes a power regulating submodule connected to the precision control module 120 signal and controlling the emission power of the laser emission submodule 131, and a pulse width regulator connected to the precision control module 120 signal and controlling the pulse width of the laser emission submodule 131. Through the power regulating submodule and the pulse width regulator, the laser output can be accurately controlled to obtain a preset chamfer shape according to the characteristics of different glass materials and the required microstructure. The precision control module 120 is equipped with a high-precision system and intelligent path planning software, which can realize the precise engraving of complex chamfer shapes and internal microstructures. In this embodiment, CAD / CAM and other software are used for product design and processing path planning to ensure the compatibility of the laser system with the design software; at the same time, a control system of the laser equipment is also configured to ensure that it can receive processing instructions generated by the intelligent path planning software.

[0058] In addition, in this embodiment, the laser chamfering internal engraving system 100 also includes an automatic loading and unloading system for glass loading and unloading, a cooling system for cooling the glass and equipment during the laser internal engraving process, and a safety protection device for limiting the laser internal engraving operation to a preset area. Among them, the automatic loading and unloading system can use a six-axis manipulator equipped with a negative pressure suction head to suck the glass to be engraved through the negative pressure suction head, and then adjust the position of the negative pressure suction head through the six-axis manipulator to adjust the position of the glass to achieve the purpose of loading and unloading the glass. The safety protection device can be an isolation cover equipped with a transparent window, which can separate the laser internal engraving operation from the environment and facilitate real-time monitoring of the progress of the laser internal engraving operation; the cooling system can be a circulating cooling water pipe laid on the equipment to cool the equipment by heat transfer to avoid overheating of the equipment.

[0059] Before chamfering, the laser parameters (internal engraving parameters) are preset according to the glass thickness and the required chamfer shape, including laser power, pulse frequency, scanning speed, processing path, and chamfer shape. In the process of processing glass chamfers using the laser chamfering internal engraving system 100, the visual positioning module 110 is first used to accurately locate the edge of the glass; then the laser emission submodule 131 is started to scan and process according to the preset path. In this process, the visual positioning module 110 monitors the processing process in real time, and the precision control module 120 controls the power adjustment submodule and the pulse width regulator to automatically adjust the laser power and focal length according to the signal monitored by the visual positioning module 110 to ensure the quality of the chamfer. During the engraving process, the glass is scanned multiple times so that the glass obtains the ideal chamfer shape and surface finish. After the chamfering process is completed, a high-resolution microscope and a 3D profilometer are used to detect the shape, size and surface quality of the chamfer. If deviations are found, the parameters are fine-tuned and the process is repeated.

[0060] It should be noted that, in the present embodiment, the laser chamfering internal engraving system 100 processes the glass surface and internal structure through multi-focus laser engraving; when engraving the internal microstructure, the gradient design of the internal microstructure is realized by adjusting the variable power of the laser emission submodule 131; at the same time, the engraving efficiency and quality are optimized through intelligent path planning; and the changes in the chamfer size caused by the frosting liquid polishing process can also be compensated.

[0061] The frosting liquid polishing system 200 includes a sandblasting subsystem 210 and a liquid polishing subsystem 220. The sandblasting subsystem 210 includes a sandblasting water jet 211 for spraying sand and water onto the glass. Preferably, the sandblasting water jet 211 of this embodiment is a high-pressure two-fluid water jet. A mixing chamber 2111 is provided inside the sandblasting water jet 211, a spray port 2112 is provided at the end of the sandblasting water jet 211 and is connected to the mixing chamber 2111 and is used to spray out a mixture of sand particles and water, a gas inlet 2113 is provided on the end of the sandblasting water jet 211 that is opposite to the spray port 2112 and is connected to the mixing chamber 2111 and is used to receive high-pressure gas, the gas inlet 2113 is connected to an external air pressure device through an air inlet pipe, a sand-water inlet 2114 is provided on the sandblasting water jet 211 below the gas inlet 2113 and is connected to the mixing chamber 2111, the sand-water inlet 2114 is connected to the external sandblasting water tank 212 through a water inlet pipe, so that when the sand-water mixture enters the mixing chamber 2111 through the sand-water inlet 2114, the sand-water mixture is sprayed out through the spray port 2112 under the push of the high-pressure gas and impacts the glass surface to change the surface roughness of the glass.

[0062] Furthermore, the sandblasting subsystem 210 also includes a vacuum adsorption module for vacuum adsorption and fixing the glass, an adjustment module 213 for adjusting the sandblasting air pressure and water pressure and the water jet angle, and a recovery device for recovering sand particles. In this embodiment, the frosting liquid blasting system 200 includes a workbench, and the vacuum adsorption module is arranged on the workbench; the recovery device includes a liquid collecting pipe arranged under the workbench and connected to the sandblasting water tank 212, and a circulation pump for sending the mixed waste liquid in the liquid collecting pipe into the sandblasting water tank 212. The adjustment module 213 includes a mounting frame 2131, a height adjustment frame 2132 which is slidably arranged on the mounting frame 2131 and can be raised and lowered along the height direction of the mounting frame 2131, and a water jet support 2133 which is located at the bottom of the height adjustment frame 2132 and is swingably connected to the height adjustment frame 2132. A plurality of sandblasting water jets 211 are arranged on the water jet support 2133, and the adjustment module 213 is also provided with a first solenoid valve and a second solenoid valve for controlling the flow of the air inlet pipe and the water inlet pipe of the sandblasting water jet 211. The first solenoid valve and the second solenoid valve are proportional valves (proportional solenoid valves) for controlling the flow by controlling the opening and closing size of the valves. During the sandblasting process, a high-precision spectrometer is used to continuously monitor the reflectivity and transmittance of the glass surface, and the current processing progress is judged by the change trend of the optical properties.

[0063] Please combine Figure 5The sandblasting water tank 212 of the sandblasting subsystem 210 is filled with a sand-water mixture. A drain pipe is provided at the bottom of the sandblasting water tank 212. An electric ball valve 214 is installed on the drain pipe. The electric ball valve 214 is opened when the sandblasting water tank 212 needs to be cleaned to drain the sandblasting water tank 212. At the same time, a stirring motor 215 is installed in the sandblasting water tank 212 to continuously stir the sand-water mixture in the sandblasting water tank 212 so that the sand and water are mixed and the concentration of the sand particles sprayed from the sandblasting water jet 211 is ensured; the mixed liquid in the sandblasting water tank 212 is replenished through a liquid replenishing tank 216. The sand-water mixture in the sandblasting water tank 212 is sent into the sandblasting water jet 211 through a vertical pump 217 and a water inlet pipe. At the same time, a flow meter 218 is installed on the water inlet pipe. The flow meter is electrically connected to a PLC controller 219 to monitor the sand-water flow in real time. Before entering the sandblasting water jet 211, the high-pressure gas is filtered through a filter 2115 to remove impurities in the gas to prevent the impurities in the gas from affecting the glass sandblasting operation. The sand-water mixture and the gas flow are controlled by an electrical proportional valve 2116. The sand and water waste liquid generated during the sandblasting process is returned to the sandblasting water tank 212 for reuse to reduce sand grain loss and reduce operating costs. During the sandblasting process, the glass is first fixed on a vacuum adsorption workbench, and the sandblasting subsystem 210 is started to perform uniform sandblasting according to a preset program. During this process, the sandblasting effect is monitored in real time by a spectrometer, and the sandblasting pressure and angle are adjusted when necessary. Multiple two-fluid light sandblasting is performed to obtain a uniform frosting effect.

[0064] The liquid polishing subsystem 220 includes a liquid polishing tank 221 for containing liquid polishing agents, a concentration monitor 222 for monitoring the concentration of the liquid polishing agents in the liquid polishing tank 221, a temperature control subsystem 223 connected to the precision control module 120 signal and used to adjust the temperature in the liquid polishing tank 221, and an environmental control unit 224 for adjusting the liquid polishing environment. The concentration monitor 222 and the temperature control subsystem 223 can dynamically adjust the liquid polishing conditions according to the parameters of the laser inner engraving, so that the product after liquid polishing can meet the requirements of its chamfering and frosting effects. In this embodiment, the concentration monitor 222 receives the inner engraving parameters sent by the precision control module 120 and collects the real-time concentration value of the liquid polishing agent, and further sends the collected data to the host computer so that the host computer processes the data to determine whether to adjust the concentration of the liquid polishing agent. Furthermore, the environmental control unit 224 includes an air pressure regulator for adjusting the air pressure in the liquid throwing environment and a humidity control device for adjusting the humidity in the liquid throwing environment. The air pressure regulator and the humidity control device are used to optimize the liquid throwing environment to ensure the consistency of the frosting effect.

[0065] It should be noted that in this embodiment, real-time monitoring and dynamic adjustment are used to ensure that a single formula can achieve multiple processing effects at the same time. Specifically, during the liquid polishing process, a white light interferometer is also used to measure the surface roughness and microstructure of the glass in real time, and a relationship model between the surface morphology and the processing time is established to accurately control the processing end point. In this way, the frosting effect and the degree of crack formation can be judged to find the best matching parameters for laser, frosting, and laser polishing.

[0066] The integrated laser chamfering and sandblasting anti-glare processing method and system for glass of the present invention have at least the following beneficial effects:

[0067] 1) Integrating chamfering and anti-glare treatment into a continuous process significantly reduces production steps and working hours, reduces the need for intermediate handling and repositioning of glass, speeds up production, reduces the risk of material loss, and improves glass production efficiency.

[0068] 2) Use less equipment and technology, reduce equipment investment and maintenance costs and operational complexity.

[0069] 3) Reduce processing steps and equipment operating time to effectively control overall energy consumption.

[0070] 4) Integrated processing reduces processing errors that may be introduced due to multiple handling and repositioning. Through integrated processing of laser engraving, sandblasting and liquid polishing, the occurrence of structural defects in different processing stages is reduced, the difficulty of product quality control is reduced, and product quality and yield are improved.

[0071] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0072] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A method for integrated laser chamfering and sandblasting anti-glare processing of glass, characterized in that: The following steps are involved: S1. Carve a preset chamfer shape on the edge of the glass sheet by laser engraving and create a microstructure inside the glass; S2, sandblasting the glass sheet to obtain glass with a frosted effect; S3. Set the liquid polishing formula and process parameters according to the laser inner engraving operation parameters, and perform liquid polishing on the glass after sandblasting.

2. The integrated processing method of laser chamfering and sandblasting anti-glare according to claim 1, characterized in that: In step S2, the sandblasting water at least includes nano-scale silicon particles with a concentration of 0.05-10% and a D50 of 3-5 um in diameter.

3. The integrated processing method of laser chamfering and sandblasting anti-glare according to claim 1, characterized in that: In step S3, the liquid blasting agent used in the liquid blasting treatment includes 3-5% by mass of HF, 1-2% by mass of H2SO4, 1-3% by mass of NH4F and 0.1-0.3% by mass of a surfactant, and the rest is water.

4. The integrated processing method of laser chamfering and sandblasting anti-glare according to claim 1, characterized in that: In step S3, the liquid blasting agent used in the liquid blasting treatment is a NaOH solution with a concentration of 30-70% and a temperature of 120-150°C.

5. The integrated processing method of laser chamfering and sandblasting anti-glare according to claim 1, characterized in that: After liquid throwing treatment, it also includes: S4, neutralizing and cleaning the glass, removing residual solution on the surface of the glass, and drying the glass; S5, detecting the glass frosting effect, and when the glass frosting effect reaches a preset condition, proceeding to step S7; otherwise, proceeding to step S6; S6, repeatedly sandblasting the glass until the glass frosting effect reaches a preset condition, removing abrasive particles on the glass surface, cleaning the glass and entering step S7; S7. Carry out chamfer inspection and final frosting inspection on the glass.

6. A system for implementing the integrated processing method of laser chamfering and sandblasting anti-glare according to any one of claims 1 to 5, characterized in that: It includes a laser chamfering and internal engraving system and a frosting liquid polishing system connected with the laser chamfering and internal engraving system signal; The laser chamfering and inner engraving system comprises a visual positioning module for locating the edge of the glass, a precision control module for receiving the signal sent by the visual positioning module and planning the engraving scanning path through the built-in intelligent path planning software, a laser source module connected to the precision control module by signal and used for emitting laser, and a quality detection module connected to the precision control module by signal and used for detecting the quality of the glass chamfering, wherein the laser source module comprises a laser emitting submodule and a chamfering parameter control module for controlling the working parameters of the laser emitting submodule; The frosting liquid polishing system includes a sandblasting subsystem and a liquid polishing subsystem. The sandblasting subsystem includes a sandblasting water jet for spraying sand and water onto the glass; the liquid polishing subsystem includes a liquid polishing tank for containing liquid polishing agent, a concentration monitor for monitoring the concentration of the liquid polishing agent in the liquid polishing tank, a temperature control subsystem connected to the precision control module signal and used to adjust the temperature in the liquid polishing tank, and an environmental control unit for adjusting the liquid polishing environment.

7. The system according to claim 6, characterized in that The chamfering parameter control module includes a power regulating submodule connected to the precision control module signal and controlling the emission power of the laser emission submodule, and a pulse width regulator connected to the precision control module signal and controlling the pulse width of the laser emission submodule.

8. The system according to claim 6, characterized in that The quality inspection module includes a microscope and a 3D profiler.

9. The system according to claim 6, characterized in that The sandblasting subsystem also includes a vacuum adsorption module for vacuum adsorption and fixing of glass, a regulating module for adjusting the sandblasting air pressure and water pressure and the angle of the water jet, and a recovery device for recovering sand particles.

10. The system according to claim 6, characterized in that The environmental control unit includes an air pressure regulator for adjusting the air pressure in the liquid throwing environment and a humidity control device for adjusting the humidity in the liquid throwing environment.

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