Laser chamfering and sandblasting anti-dazzling integrated processing method and system for glass

Abstract

This invention relates to the field of glass processing technology and discloses an integrated laser chamfering and sandblasting anti-glare processing method for glass. This method offers high production efficiency, reduces quality control difficulty and improves product yield, consumes less energy, requires fewer devices, and lowers equipment maintenance costs and operational complexity. The method includes the following steps: S1, carving a pre-defined chamfer shape at the edge of a glass sheet using laser engraving, and creating a microstructure inside the glass; S2, sandblasting the glass sheet to obtain a frosted effect; S3, setting the liquid polishing formula and process parameters according to the laser engraving operation parameters, and performing liquid polishing on the sandblasted glass. A system for implementing the above-described integrated laser chamfering and sandblasting anti-glare processing method for glass is also disclosed.

Description

Technical Field

[0001] This invention relates to the field of glass processing technology, and in particular to an integrated processing method and system for laser chamfering and sandblasting anti-glare of glass. Background Technology

[0002] In the manufacturing process of 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 apply an anti-glare treatment to the glass surface. This ensures the glass fits snugly against the main body of the electronic device and reduces or eliminates glare, improving the user's viewing experience. Chamfering typically involves mechanical edge grinding, while anti-glare treatment mainly relies on chemical etching or physical sandblasting. These two processes are fundamentally different; therefore, in the industry, chamfering and anti-glare treatment are usually performed separately and independently. When glass beveling and anti-glare treatment are performed independently, the multi-step process requires separate equipment setup and operation, extending the entire production cycle. The glass needs to be repositioned and adjusted when transferring between different workstations, further prolonging processing time and reducing production efficiency. Secondly, frequent glass transfers and adjustments can easily lead to positioning errors, and different processing stages may result in uneven material stress, microcracks, or other structural defects, leading to a high defect rate and increasing the difficulty of quality control. Furthermore, the processing involves various different mechanical equipment and technologies, increasing operational complexity and equipment maintenance costs. Finally, multi-stage processing typically involves higher energy consumption, further increasing glass processing costs. Summary of the Invention

[0003] Therefore, it is necessary to address the above-mentioned shortcomings by providing an integrated laser chamfering and sandblasting anti-glare processing method and system for glass, which has high production efficiency, reduces the difficulty of quality control and improves product yield, has low energy consumption, requires fewer equipment and reduces equipment maintenance costs and operational complexity.

[0004] A method for integrating laser chamfering and sandblasting anti-glare processing of glass includes the following steps:

[0005] S1. A pre-defined chamfer is engraved at the edge of the glass sheet using laser engraving, and a microstructure is created inside the glass.

[0006] S2. Sandblast the glass sheet to obtain glass with a frosted effect;

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

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

[0009] In one embodiment, in step S3, the liquid polishing agent used in the liquid polishing treatment includes 3-5% HF, 1-2% H2SO4, 1-3% NH4F and 0.1-0.3% surfactant by mass, with the remainder being water.

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

[0011] In one embodiment, after liquid polishing, the process further includes:

[0012] S4. Neutralize and clean the glass to remove residual solution from the glass surface, and then dry the glass.

[0013] S5. Detect the glass frosting effect. If the glass frosting effect meets the preset conditions, proceed to step S7; otherwise, proceed to step S6.

[0014] S6. Repeatedly sandblast the glass until the glass frosting effect reaches the preset conditions, remove abrasive particles from the glass surface, clean the glass and proceed to step S7.

[0015] S7. Perform chamfering and final frosting inspection on the glass.

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

[0017] The laser chamfering engraving system includes a visual positioning module for locating the glass edge, a precision control module for receiving signals sent by the visual positioning module and planning the engraving scanning path through built-in intelligent path planning software, a laser source module connected to the precision control module for emitting laser light, and a quality detection module connected to the precision control module for detecting the quality of glass chamfering. The laser source module includes a laser emission sub-module and a chamfering parameter control module for controlling the operating parameters of the laser emission sub-module.

[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 holding liquid polishing agents, a concentration monitor for monitoring the concentration of liquid polishing agents in the liquid polishing tank, a temperature control subsystem that is signal-connected to the precision control module and used to adjust the temperature inside 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 adjustment submodule that is signal-connected to the precision control module and controls the emission power of the laser emission submodule, and a pulse width regulator that is signal-connected to the precision control module and controls the pulse width of the laser emission submodule.

[0020] In one embodiment, 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, an adjustment module for adjusting sandblasting air pressure and water pressure as well as water jet angle, and a recovery device for recovering sand particles.

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

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

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

[0025] 2) Use fewer devices and technologies, reducing 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. By integrating laser engraving, sandblasting and liquid polishing, the generation of structural defects at different processing stages is reduced, the difficulty of product quality control is lowered, and product quality and yield are improved. Attached Figure Description

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

[0029] Figure 2 This is a modular structure diagram of an integrated laser chamfering and sandblasting anti-glare processing system according to one embodiment of the present invention;

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

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

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

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

[0034] Figure 7 This is a schematic diagram of the adjustment module in one embodiment of the present invention. Detailed Implementation

[0035] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0036] This invention discloses an integrated laser chamfering and sandblasting anti-glare processing method for glass. This 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 ordinary glass with a thickness greater than 0.1 mm and ultra-thin glass (UTG) with a thickness less than 0.1 mm. For details, please refer to [link / reference]. Figure 1 The integrated laser chamfering and sandblasting anti-glare processing method includes the following steps:

[0037] S1. A pre-defined chamfer is engraved on the edge of the glass sheet using laser engraving, and a microstructure is created inside the glass.

[0038] In this embodiment, the microstructure inside the glass has a preset gradient; that is, the microstructure is designed with a gradient along a diagonal direction. The tilt direction of this gradient microstructure is parallel to the tilt direction of the chamfer on the outer edge of the glass. Specifically, the surface and internal structure of the glass are processed using multi-focal laser engraving, simultaneously creating a microstructure inside the glass edge and a chamfer on the outer edge. By controlling the distance from the microstructure edge to the wide surface of the glass and to the glass's beveled surface (the surface formed by the chamfer) to be the same (i.e., the distance from the microstructure edge to the glass surface), and ensuring the liquid polishing etching depth is greater than or equal to this distance, after liquid polishing, the outer surface of the glass is etched, and the microstructure originally located inside the glass forms the final chamfer, achieving the goal of obtaining a chamfer while liquid polishing. In this embodiment, by processing the microstructure inside the edge of the glass sheet using laser engraving and then creating a chamfer on its outside, the stress at the glass edge can be effectively dispersed, enhancing the strength of the glass edge and reducing the risk of glass breakage. In addition, laser engraving can precisely control the angle and depth of the chamfer, ensuring that the glass edges are smooth and defect-free, while also compensating for dimensional changes caused by liquid polishing.

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

[0040] During the laser engraving process on glass, the operational parameters need to be recorded and stored. These parameters serve as a reference for subsequent liquid polishing operations, allowing for adjustments to the liquid polishing parameters. Additionally, during the laser chamfering process, the glass's shape must be monitored in real time. Based on the detected shape parameters, the laser engraving parameters are further adjusted to ensure the engraved glass meets the requirements for frosting and liquid polishing. Specifically, a high-resolution microscope and a 3D profilometer are used to inspect the shape, size, and surface quality of the chamfer. If deviations are found, the laser engraving parameters are fine-tuned, and the process is repeated until the engraved glass meets the required shape and size.

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

[0042] In this embodiment, sandblasting the surface of the glass sheet alters its surface roughness and light transmittance, resulting in an anti-glare effect after processing. In step S2, the sandblasting solution contains at least 0.05-10% nano-sized silicon particles with a D50 diameter of 3-5 μm. Furthermore, in this embodiment, alumina or glass microspheres are selected as the abrasive particles for glass sandblasting; that is, alumina or glass microspheres are used as the primary abrasive in glass sandblasting, impacting the glass surface at high speed to create indentations and improve surface roughness. In sandblasting operations, a sandblasting machine can be used to uniformly sandblast the glass surface and monitor the sandblasting effect in real time. At the same time, sandblasting parameters can be adjusted according to the desired frosting effect on the glass surface. For example, the frosting effect on the glass surface can be controlled by adjusting the sandblasting air pressure, sandblasting water pressure, sand-water concentration, number of sandblasting cycles, nozzle angle, and selecting alumina or glass microspheres with preset particle size and flow rate. The setting of nano-sized silicon particles is used to further finely adjust 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 engraving operation parameters, and perform liquid polishing treatment on the sandblasted glass.

[0044] In this embodiment, by liquid polishing the glass with a frosted effect after sandblasting, the micro-cracks on the glass surface formed by sandblasting can be further amplified by the chemical solution (liquid polishing agent), thereby further changing the optical characteristics and roughness of the micro-cracks 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 in the liquid polishing process includes 3-5% HF, 1-2% H2SO4, 1-3% NH4F, and 0.1-0.3% surfactant by mass, with the remainder being water. The above liquid polishing process is acidic liquid polishing, wherein HF is used to etch the glass; H2SO4 is used to enhance the etching effect of HF; NH4F acts as a buffer to control the etching rate of the glass, creating a stable pH environment for the glass etching operation, which is conducive to the formation of a uniform microporous structure on the glass surface, thereby producing an ideal frosted effect; the surfactant is used to ensure uniform etching and control the pore structure. In this embodiment, the synergistic effect of the surfactant and the microcracks generated by the nano-sized silicon particles during sandblasting, by controlling the concentration of the surfactant, the parameters of the nano-sized silicon particles, and the sandblasting parameters, can precisely control the change in the roughness of the glass surface, thereby achieving precise adjustment of the frosted effect of the glass surface. Preferably, the surfactant can be anionic or cationic surfactants, such as alkylbenzene sulfonates, α-olefin sulfonates, alkyl sulfonates, fatty alcohol sulfates, secondary alkyl sulfates, fatty acid salts, hexadecyl dimethyl ammonium chloride, octadecyl trimethyl ammonium chloride, cationic silicone oil, dodecyl dimethylamine oxide, cationic panthenol, etc. In another embodiment, in step S3, the liquid polishing agent used in 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 alkaline liquid polishing, wherein the NaOH solution reacts faster with the glass (silicon dioxide) at a higher temperature, thereby achieving the purpose of etching the glass.

[0045] It should be noted that in this embodiment, by combining HF and H2SO4 or by precisely controlling the concentration and temperature of NaOH, the microcracks after laser chamfering can be effectively dissolved, while the edges are smoothed, thereby achieving the purpose of glass sheet cleaving. That is, there is no need to set up a cleaving process, thus reducing the operation process.

[0046] In the liquid polishing process, a suitable liquid polishing agent is first selected, and its concentration is determined based on the glass type and the desired frosting effect. When using acidic liquid polishing, a temperature control system or equipment is used to preheat the liquid polishing agent to between 40-120°C to accelerate the reaction; when using alkaline liquid polishing, a temperature control system or equipment is used to preheat the agent to between 120-150°C to accelerate the reaction. During liquid polishing, the sandblasted glass is immersed in the preheated liquid polishing agent, and the immersion time is controlled to 30-300 seconds. It should be noted that in this embodiment, the glass liquid polishing operation can be carried out in a liquid polishing tank where the vibration of the liquid polishing agent is controlled by ultrasonic equipment. The use of ultrasonic equipment can improve the uniformity and efficiency of the liquid polishing process.

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

[0048] S4. Neutralize and clean the glass to remove residual solution from the glass surface, and then dry the glass. Specifically, when using acidic liquid polishing, immerse the glass in a 5-10% NaOH solution for 10-30 seconds, followed by multiple ultrasonic cleanings with deionized water to remove residual liquid polishing agents and impurities. Then, thoroughly dry the glass using a dust-free hot air drying system to remove surface moisture. Similarly, when using alkaline liquid polishing, immerse the glass in dilute hydrochloric acid or dilute sulfuric acid for 10-30 seconds, followed by multiple ultrasonic cleanings with deionized water, and then thoroughly dry the glass using a dust-free hot air drying system.

[0049] S5. Detect the frosting effect of the glass. If the frosting effect meets the preset conditions, proceed to step S7; otherwise, proceed to step S6. In this embodiment, a gloss meter and a surface roughness meter are used to measure the frosting effect of the glass surface. At the same time, the anti-glare performance of the glass is evaluated by an anti-glare testing device. For example, a standard light source and an illuminance meter are used to test the anti-glare effect.

[0050] S6. Repeat sandblasting the glass until the frosting effect meets the preset conditions. Remove abrasive particles from the glass surface, clean the glass, and proceed to step S7. In other words, when the frosting effect and anti-glare performance of the glass fail to meet design requirements, readjust the glass sandblasting parameters and repeat sandblasting. During this process, continuously monitor the surface condition of the glass until the parameters characterizing the frosting effect and anti-glare performance reach the preset indicators, thus completing the repeated sandblasting operation. When the glass has been repeatedly sandblasted until the frosting effect and anti-glare performance are met, use specialized post-processing cleaning equipment (such as a cyclone dust collector or electrostatic precipitator) to remove residual abrasive particles from the glass surface. Perform ultrasonic cleaning on the glass to ensure a clean surface, and then dry the glass.

[0051] S7. Perform chamfering and final frosting inspection on the glass.

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

[0053] Finally, the processing parameters, test results, and quality data of each piece of glass are recorded to establish a complete production traceability system, so that the processing status of the glass can be traced in the future.

[0054] Compared to traditional chemical processing methods, the aforementioned integrated laser chamfering and sandblasting anti-glare processing method generates less waste during the process. It eliminates the heavy reliance on CNC grinding wheels, coolant, the energy consumption of numerous traditional machines, polishing fluids, and brushes, resulting in less environmental pollution. Furthermore, it improves material utilization, reduces waste generation, lowers production costs, and conserves resources. By combining chamfering and frosting processes and adjusting the parameters of laser chamfering and sandblasting, the two processes are seamlessly integrated. Chamfering and the optical effect of the frosted surface are completed simultaneously. In a single liquid polishing process, the post-laser chamfering cracking treatment, the optical treatment of the frosting effect, and the surface roughness treatment are all completed concurrently, reducing processing time and additional steps. This simplifies and integrates the workflow, effectively combining laser chamfering and surface sandblasting / frosting liquid polishing processes, reducing intermediate steps and improving production efficiency.

[0055] Please combine Figure 2-7 The present invention also discloses a system for implementing the above-mentioned integrated laser chamfering and sandblasting anti-glare processing method. This system includes a laser chamfering internal engraving system 100 and a frosting liquid polishing system 200 connected to the laser chamfering internal engraving system 100 via signal communication. The laser chamfering internal engraving system 100 is used to achieve precise chamfer shape control and internal microstructure creation. The frosting liquid polishing system 200 achieves surface treatment and optical effect optimization of the glass. The laser chamfering internal engraving system 100 and the frosting liquid polishing system 200 use the same common liquid polishing system operating mode to grow fracturing. The entire process completes fracturing, frosting effect optical processing, and roughness growth within the same set of liquid polishing time, achieving process integration. While controlling the frosting effect on the glass surface through glass liquid polishing, the purpose of fracturing is achieved. Furthermore, the liquid polishing parameters are adjusted according to the internal engraving parameters, thereby precisely controlling the chamfer shape and size of the glass.

[0056] Specifically, in this embodiment, the laser chamfering engraving system 100 includes a visual positioning module 110 for locating the glass edge, a precision control module 120 for receiving signals sent by the visual positioning module 110 and planning the engraving scanning path through built-in intelligent path planning software, a laser source module 130 connected to the precision control module 120 for emitting laser light, 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 profilometer. The laser source module 130 includes a laser emission submodule 131 and a chamfering parameter control module 132 for controlling the operating parameters of the laser emission submodule. The laser emission submodule 131 can be an optical component consisting of a grating or optical lens with a diffractive optical element (DOE). Its working principle is to decompose the incident light into outgoing light with different diffraction levels (e.g., through the adjustment of the microstructure on the surface of the optical component). Figure 3 (As shown). Alternatively, the laser emitting submodule 131 can also be an optical device equipped with a spatial light modulator (SLM). A spatial light modulator is an adjustable beam profile that modulates light by changing the phase, amplitude, or polarization state of each unit in the internal beam, thereby achieving highly flexible and real-time dynamic changes to the hologram or optical mode (e.g., as shown). Figure 4 (As shown).

[0057] In this embodiment, the chamfering parameter control module 132 includes a power adjustment submodule that is signal-connected to the precision control module 120 and controls the emission power of the laser emission submodule 131, and a pulse width regulator that is signal-connected to the precision control module 120 and controls the pulse width of the laser emission submodule 131. Through the power adjustment submodule and the pulse width regulator, the laser output can be precisely controlled to obtain a preset chamfering 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, enabling precise engraving of complex chamfering shapes and internal microstructures. In this embodiment, CAD / CAM software is used for product design and processing path planning to ensure compatibility between the laser system and the design software; a control system for 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 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 engraving process, and a safety protection device for confining the laser engraving operation to a preset area. The automatic loading and unloading system can employ a six-axis robotic arm equipped with a negative pressure suction head. The suction head picks up the glass to be engraved, and the six-axis robotic arm adjusts the position of the suction head to adjust the glass position, thus achieving the purpose of loading and unloading the glass. The safety protection device can be an isolation cover with a transparent viewing window, which isolates the laser engraving operation from the environment while facilitating real-time monitoring of the laser engraving operation. The cooling system can be a circulating cooling water pipe laid on the equipment to cool the equipment through heat transfer, preventing overheating.

[0059] Before chamfering, laser parameters (internal engraving parameters) are preset based on the glass thickness and the desired chamfer shape, including laser power, pulse frequency, scanning speed, processing path, and chamfer shape. During the glass chamfering process using the laser chamfering internal engraving system 100, the vision positioning module 110 first precisely positions the glass edge; then, the laser emission submodule 131 is activated to scan and process along the preset path. During this process, the vision positioning module 110 monitors the processing in real time, and the precision control module 120 automatically adjusts the laser power and focal length based on the signals monitored by the vision positioning module 110, controlling the power adjustment submodule and pulse width adjuster to ensure chamfer quality. During engraving, the glass is scanned multiple times to achieve the ideal chamfer shape and surface finish. After chamfering is completed, a high-resolution microscope and a 3D profilometer are used to inspect 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 this embodiment, the laser chamfering 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 chamfer size caused by the frosting and 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 in this embodiment is a high-pressure two-fluid water jet. The sandblasting water jet 211 has a mixing chamber 2111 inside. The end of the sandblasting water jet 211 has a nozzle 2112 that communicates with the mixing chamber 2111 and is used to spray out a mixture of sand particles and water. The end of the sandblasting water jet 211 facing away from the nozzle 2112 has a gas inlet 2113 that communicates with the mixing chamber 2111 and is used to access high-pressure gas. The gas inlet 2113 is connected to an external air pressure device through an air inlet pipe. Below the gas inlet 2113, the sandblasting water jet 211 has a sand-water inlet 2114 that communicates with the mixing chamber 2111. The sand-water inlet 2114 is connected to an external sandblasting water tank 212 through a water inlet pipe. Thus, 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 nozzle 2112 under the push of high-pressure gas and impacts the glass surface to change the roughness of the glass surface.

[0062] Furthermore, the sandblasting subsystem 210 also includes a vacuum adsorption module for vacuum adsorption and fixing of glass, an adjustment module 213 for adjusting the sandblasting air pressure, water pressure, and water jet angle, and a recovery device for recovering sand particles. In this embodiment, the sandblasting liquid polishing system 200 includes a worktable, on which the vacuum adsorption module is arranged; the recovery device includes a collection pipe arranged below the worktable and communicating with the sandblasting water tank 212, and a circulation pump for sending the mixed waste liquid in the collection pipe into the sandblasting water tank 212. The adjustment module 213 includes a mounting frame 2131, a height adjustment frame 2132 slidably mounted on the mounting frame 2131 and movable up and down along the height direction of the mounting frame 2131, and a waterjet support 2133 located at the bottom of the height adjustment frame 2132 and oscillatingly connected to the height adjustment frame 2132. Several sandblasting waterjet blades 211 are arranged on the waterjet support 2133. The adjustment module 213 is also equipped with a first solenoid valve and a second solenoid valve to control the flow rate of the air inlet pipe and water inlet pipe of the sandblasting waterjet blades 211. These first and second solenoid valves are proportional valves (proportional solenoid valves) used to control the flow rate by controlling the opening and closing 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 determined by the changing trends of the optical properties.

[0063] Please combine Figure 5The sandblasting subsystem 210 has a sand-water mixture in its water tank 212. A drain pipe with an electric ball valve 214 is installed at the bottom of the water tank 212. The electric ball valve 214 opens when the water tank 212 needs cleaning to empty it. Simultaneously, a stirring motor 215 is installed inside the water tank 212 to continuously stir the sand-water mixture, ensuring uniform mixing and maintaining the concentration of sand particles sprayed from the water jet 211. The mixture in the water tank 212 is replenished through a replenishment tank 216. The sand-water mixture in the water tank 212 is pumped into the water jet 211 via a vertical pump 217 and an inlet pipe. A flow meter 218 is installed on the inlet pipe, electrically connected to a PLC controller 219 to monitor the sand-water flow rate in real time. Before entering the waterjet blasting jet 211, the high-pressure gas is filtered through filter 2115 to remove impurities and prevent them from affecting the glass blasting operation. The sand-water mixture and gas flow rate are controlled by an electro-proportional valve 2116. Waste sand-water generated during blasting is recycled to the blasting water tank 212 for reuse, reducing sand particle loss and lowering operating costs. During blasting, the glass is first fixed on the vacuum adsorption worktable, and the blasting subsystem 210 is started to perform uniform blasting according to a preset program. During this process, the blasting effect is monitored in real time using a spectrometer. If necessary, the blasting pressure and angle are adjusted, and multiple light two-fluid blasting operations are performed to obtain a uniform sandblasting effect.

[0064] The liquid polishing subsystem 220 includes a liquid polishing tank 221 for holding the liquid polishing agent, a concentration monitor 222 for monitoring the concentration of the liquid polishing agent in the liquid polishing tank 221, a temperature control subsystem 223 connected to the precision control module 120 for adjusting the temperature inside 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 laser engraving, so that the product after liquid polishing can meet the requirements of chamfering and frosting effects. In this embodiment, the concentration monitor 222 receives the engraving parameters sent by the precision control module 120 and collects the real-time concentration value of the liquid polishing agent. At the same time, it further sends the collected data to the host computer so that the host computer can process the data to determine whether the concentration of the liquid polishing agent needs to be adjusted. Furthermore, the environmental control unit 224 includes a pressure regulator for adjusting the air pressure in the liquid polishing environment and a humidity control device for adjusting the humidity in the liquid polishing environment. The pressure regulator and the humidity control device are used to optimize the liquid polishing 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 simultaneously achieve multiple processing effects. Specifically, during the liquid polishing process, a white light interferometer is used to measure the surface roughness and microstructure of the glass in real time, establishing a model of the relationship between surface morphology and processing time to precisely control the processing termination point. In this way, the frosting effect and the degree of crack formation can be determined, allowing for the identification of the optimal combination parameters for laser, frosting, and laser polishing.

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

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

[0068] 2) Use fewer devices and technologies, reducing 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. By integrating laser engraving, sandblasting and liquid polishing, the generation of structural defects at different processing stages is reduced, the difficulty of product quality control is lowered, and product quality and yield are improved.

[0071] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above 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 embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A method for integrating laser chamfering and sandblasting anti-glare processing of glass, characterized in that, Includes the following steps: S1. A pre-defined chamfer shape is engraved on the edge of the glass sheet using laser engraving, creating a microstructure inside the glass. The microstructure is designed with a gradient along a diagonal direction, and the tilt direction of this gradient microstructure is parallel to the tilt direction of the chamfer on the outer edge of the glass. Multi-focal laser engraving is used to process the surface and internal structure of the glass, simultaneously processing the microstructure inside the glass edge and creating the chamfer on the outer edge. The distance from the edge of the microstructure to the wide surface and the bevel of the glass are controlled to be the same, and the liquid polishing etching 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 etched, and the microstructure originally located inside the glass forms the final chamfer, achieving the purpose of obtaining a chamfer while liquid polishing. Processing the microstructure inside the edge of the glass sheet and creating the chamfer on the outside using laser engraving can effectively disperse the stress at the glass edge, enhance the strength at the glass edge, and reduce the risk of glass breakage. Laser engraving can precisely control the angle and depth of the chamfer, ensuring that the glass edge is smooth and defect-free, while also compensating for dimensional changes caused by liquid polishing. S2. Sandblast the glass sheet to obtain glass with a frosted effect; S3. Set the liquid polishing formula and process parameters according to the laser engraving operation parameters, and perform liquid polishing treatment on the sandblasted glass.

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

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

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

5. The integrated laser chamfering and sandblasting anti-glare processing method according to claim 1, characterized in that, After liquid polishing, the process also includes: S4. Neutralize and clean the glass to remove residual solution from the glass surface, and then dry the glass. S5. Detect the glass frosting effect. If the glass frosting effect meets the preset conditions, proceed to step S7; otherwise, proceed to step S6. S6. Repeatedly sandblast the glass until the glass frosting effect reaches the preset conditions, remove abrasive particles from the glass surface, clean the glass and proceed to step S7. S7. Perform chamfering and final frosting inspection on the glass.

6. A system for implementing the integrated laser chamfering and sandblasting anti-glare processing method according to any one of claims 1-5, characterized in that, This includes a laser beveling engraving system and a frosting liquid polishing system connected to the laser beveling engraving system. The laser beveling engraving system is used to achieve precise beveling shape control and internal microstructure creation, while the frosting liquid polishing system achieves surface treatment and optical effect optimization of the glass. The laser beveling engraving system and the frosting liquid polishing system use the same common liquid polishing system working method to grow cracks. The entire process completes cracking, optical processing of frosting effect, and roughness growth within the same set of liquid polishing time, realizing process integration. While controlling the frosting effect on the glass surface during glass liquid polishing, the purpose of cracking is achieved. By processing microstructures inside the edge of the glass sheet through laser engraving and processing beveling on its outside, the stress at the glass edge can be effectively dispersed, the strength at the glass edge can be enhanced, and the risk of glass breakage can be reduced. By processing beveling through laser engraving, the angle and depth of the beveling can be precisely controlled, ensuring that the glass edge is smooth and defect-free, while also compensating for dimensional changes caused by liquid polishing. The laser chamfering engraving system includes a visual positioning module for locating the glass edge, a precision control module for receiving signals sent by the visual positioning module and planning the engraving scanning path through built-in intelligent path planning software, a laser source module connected to the precision control module for emitting laser, and a quality detection module connected to the precision control module for detecting the quality of glass chamfering. The laser source module includes a laser emission sub-module and a chamfering parameter control module for controlling the working parameters of the laser emission sub-module. 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 holding liquid polishing agents, a concentration monitor for monitoring the concentration of liquid polishing agents in the liquid polishing tank, a temperature control subsystem that is signal-connected to the precision control module and used to adjust the temperature inside 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 adjustment submodule that is connected to the precision control module and controls the emission power of the laser emission submodule, and a pulse width regulator that is connected to the precision control module and controls 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 profilometer.

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, an adjustment module for adjusting sandblasting air pressure and water pressure as well as water jet angle, and a recovery device for recovering sand particles.

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

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