Processing technology for preventing glare glass from dusting and grinding tool thereof

Abstract

The invention relates to the field of glass, and particularly discloses a processing technology for preventing glare glass from dusting and a grinding tool thereof.The processing technology comprises the following steps that to-be-processed glass is prepared, to-be-used agents are prepared, the temperature of a spraying chamber is adjusted to 300-500 DEG C, then spraying is conducted, after spraying is finished, the glass stands still for 3-6 hours in the environment of 170-200 DEG C, and after curing is finished, the glass is cooled to the room temperature; and transferring the glass into a grinding tool for grinding. According to the scheme, an acidic spraying agent is introduced, a proper curing temperature condition is matched, and a chemical reaction is promoted by virtue of an acidic environment and the most proper temperature, so that a closer and more stable interaction between a silicon dioxide coating and a glass substrate is promoted; after the coating is formed, the glass is transferred to a professional grinding tool, and the surface of the glass is finely ground by using a high-precision grinding head, so that the outermost coating with relatively weak binding force is removed, only the inner layer firmly adhered to the glass is reserved, and powder falling is avoided.

Description

Technical Field

[0001] The invention belongs to the field of glass coatings, and particularly relates to a processing technology for powder loss of anti-glare glass and a grinding tool thereof. Background Art

[0002] Anti-glare glass is a glass surface that has been specially treated to become a matte, non-reflective surface. Compared with ordinary glass, anti-glare glass has less mirror reflection. In a strong light environment, it can reduce the amount of mirror reflection light entering the human eye, thereby achieving the purpose of anti-glare.

[0003] At present, glass cover plates are widely used in various fields such as mobile phones, tablets, smart home devices, and automotive electronic products. As consumers' expectations for product quality and user experience continue to rise, glass cover plate processing is also facing increasingly stringent requirements. Among them, anti-glare performance is an important technical indicator of glass cover plates. As far as the current market situation is concerned, most 2D glass cover plate products will be anti-glare treated. In contrast, it is rare for 2.5D curved glass cover plates to not be anti-glare treated. In the anti-glare process, a thin layer of nano-silicon dioxide coating is usually sprayed on the surface of the glass. However, the only drawback is that this type of anti-glare product will show slight powder loss during daily routine touch use, which to a certain extent destroys the user experience of consumers, and the industry is urgently needed to provide an optimization solution. Summary of the invention

[0004] The purpose of the present invention is to provide a processing technology and a grinding tool for preventing anti-glare glass from falling off during use.

[0005] To achieve the above object, the present invention provides a process for processing powder loss of anti-glare glass, comprising the following steps:

[0006] a. cutting, grinding and cleaning the glass to obtain a glass substrate;

[0007] b. Prepare the spraying agent and control the pH value of the agent between 4-5;

[0008] c. Adjust the temperature in the spraying room to 300-500℃, and start spraying using pressure spraying equipment; after spraying, transfer the glass to a constant temperature room to solidify the agent, and adjust the temperature in the constant temperature room to 170-200℃, and the constant temperature solidification time is 3-6 hours;

[0009] d. Take the glass out of the constant temperature room, wait for it to cool naturally, then fix the glass to the mold and transfer it to the grinding disc of the mold, install sandpaper on the grinding head of the mold, and use sandpaper to grind the side of the glass to be sprayed;

[0010] e. Clean and polish the glass to obtain the original anti-glare glass.

[0011] As an improvement of the above scheme, the agent includes silicon dioxide, organic alcohols and acidic auxiliary agents.

[0012] As an improvement of the above solution, the sandpaper is 3500# sponge sandpaper.

[0013] As an improvement of the above solution, the pressure of the sandpaper when polishing the glass is 9-11 kg.

[0014] To achieve the above-mentioned purpose, the present invention provides a mold, including a shell, the upper side of the shell has a first groove and is provided with a mounting plate, the bottom of the shell is provided with legs, a plurality of springs are provided between the mounting plate and the shell, when the mounting plate and the glass are pressurized, the plurality of springs generate elastic force; at least one negative pressure suction port is provided on the mounting plate, and a pipe of the negative pressure suction port passes through the bottom of the shell and then extends outward.

[0015] As an improvement of the above solution, a first baffle extending downward is provided on the outer four sides of the mounting plate, and the four sides of the first baffle are in contact with the inner side of the first groove for positioning. A second groove for placing glass is provided in the middle area of ​​the mounting plate, and the four sides of the glass are in contact with the inner side of the second groove for positioning.

[0016] The present invention has the following beneficial effects: the scheme introduces an acidic spray agent and combines it with a suitable curing temperature condition, taking a two-pronged approach; the acidic environment and the most suitable temperature are used to promote the chemical reaction, thereby causing a tighter and more stable interaction between the silica coating and the glass substrate; after the coating is formed, the glass is transferred to a professional grinding tool, and the glass surface is finely polished using a high-precision grinding head, thereby removing the outermost coatings with relatively weak bonding strength, leaving only the coatings that are firmly adhered to the glass and have no risk of wear even after long-term friction and wear, thereby completely eliminating the possibility of annoying powder shedding problems during daily use of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a cross-sectional view of a grinding tool according to an embodiment;

[0018] Figure 2 It is a stereogram of a grinding tool under an embodiment.

[0019] Explanation of the reference numerals: 10, housing; 20, mounting plate; 30, spring; 40, glass; 50, negative pressure suction port; 60, grinding head. DETAILED DESCRIPTION

[0020] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "top", "bottom", "top surface", "bottom surface", "inside", "outside", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0021] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If the terms "first", "second", "third" are described, they are only used for the purpose of description and distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is an explanation of the embodiments of the present invention based on its overall structure.

[0023] The hydrogen atom (H) on the hydroxyl group (-OH) of the two silanol groups (Si-OH) will be detached under the action of high temperature to form a water molecule (H2O), and at the same time, a silicon-oxygen-silicon (Si-O-Si) bridge bond will be formed between the silicon atoms (Si). This process can be expressed by the chemical equation: 2Si-OH→Si-O-Si+H2O. At high temperatures, the activity of silanol groups is enhanced, and the molecular thermal motion is intensified, which increases the frequency of collisions between hydroxyl groups and makes dehydration condensation reactions more likely to occur. At the same time, the spray concentration of the agent and the acidic agent will also promote the combination of the two. The next step is to find the appropriate reaction temperature and agent pH value.

[0024] Reference Figure 1 and Figure 2 The present invention discloses a processing technology for powdering of anti-glare glass, comprising the following steps:

[0025] a. Cutting, grinding and cleaning the glass 40 to obtain a glass substrate 40;

[0026] b. Prepare the spraying agent and control the pH value of the agent between 4-5;

[0027] c. Adjust the temperature in the spraying room to 300-500°C, and start spraying using a pressure spraying device; after spraying, transfer the glass 40 to a constant temperature room to solidify the agent, and adjust the temperature in the constant temperature room to 170-200°C for 3-6 hours of constant temperature solidification;

[0028] d. Take out the glass 40 from the constant temperature chamber, wait for it to cool naturally, then fix the glass 40 to the mold and transfer it to the grinding disc of the mold, install sandpaper on the grinding head 60 of the mold, and use the sandpaper to grind the sprayed side of the glass 40; after grinding, close the suction valve and use the suction pen to take away the glass 40;

[0029] e. Clean the polished glass 40 to obtain the original anti-glare glass 40.

[0030] This solution introduces an acid spray agent and combines it with suitable curing temperature conditions, taking a two-pronged approach; the acidic environment and the most suitable temperature are used to promote chemical reactions, thereby creating a closer and more stable interaction between the silica coating and the glass 40 substrate; after the coating is formed, the glass 40 is transferred to a professional grinding tool, and the surface of the glass 40 is finely polished using a high-precision grinding head 60, thereby removing the outermost coatings with relatively weak bonding strength, leaving only the coatings that are firmly adhered to the glass 40 and have no risk of wear even after long-term friction and wear, thereby completely eliminating the possibility of annoying powder shedding problems during daily use of the product.

[0031] As an improvement of the above scheme, the agent includes silicon dioxide, organic alcohols and acidic auxiliary agents.

[0032] As an improvement of the above solution, the sandpaper is 3500# sponge sandpaper.

[0033] As an improvement of the above solution, the pressure of the sandpaper when grinding the glass 40 is 9-11 kg. Further, the sandpaper is temporarily fixed to the bottom of the grinding head 60 by adhesive. According to the size of the glass 40 to be ground, the size of the grinding head 60 and its sandpaper also changes accordingly.

[0034] To achieve the above-mentioned purpose, the present invention provides a grinding tool, including a shell 10, the upper side of the shell 10 has a first groove and is provided with a mounting plate 20, the bottom of the shell 10 is provided with legs, and a plurality of springs 30 are provided between the mounting plate 20 and the shell 10. When the mounting plate 20 and the glass 40 are compressed, the plurality of springs 30 generate elastic forces up to 9-11 kg. During the test, the descending height of the grinding head 60 is analyzed to obtain the compressed distance of the spring 30, and indirectly obtain the elastic force generated by the spring 30 at this time. At least one negative pressure suction port 50 is provided on the mounting plate 20, and the pipe of the negative pressure suction port 50 passes through the bottom of the shell 10 and then extends outward.

[0035] As an improvement of the above solution, a first baffle extending downward is provided on the outer periphery of the mounting plate 20, and the periphery of the first baffle fits the inner side of the first groove for positioning, so as to prevent the mounting plate 20 from shaking in the horizontal direction. A second groove for placing the glass 40 is provided in the middle area of ​​the mounting plate 20, and the periphery of the glass 40 fits the inner side of the second groove for positioning, so as to prevent the glass 40 from shaking in the horizontal direction.

[0036] like Figure 1 As shown, it can be seen that the upper surface of the glass 40 slightly protrudes from the mounting plate 20. Two springs 30 are arranged between the mounting plate 20 and the housing 10, and limiting columns are arranged at corresponding positions of the springs 30 to prevent the springs 30 from sliding.

[0037] As an improvement of the above solution, the shell 10 is made of wood, and arc surfaces are arranged at its corners.

[0038] The foregoing description of specific exemplary embodiments of the present invention is for the purpose of illustration and demonstration. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the present invention and various different selections and changes. The scope of the present invention is intended to be limited by the claims and their equivalents.

Claims

1. A process for removing powder from anti-glare glass, characterized in that The following steps are involved: a. cutting, grinding and cleaning the glass to obtain a glass substrate; b. Prepare the spraying agent and control the pH value of the agent between 4-5; c. Adjust the temperature in the spraying room to 300-500℃, and start spraying using pressure spraying equipment; after spraying, transfer the glass to a constant temperature room to solidify the agent, and adjust the temperature in the constant temperature room to 170-200℃, and the constant temperature solidification time is 3-6 hours; d. Take the glass out of the constant temperature room, wait for it to cool naturally, then fix the glass to the mold and transfer it to the grinding disc of the mold, install sandpaper on the grinding head of the mold, and use sandpaper to grind the side of the glass to be sprayed; e. Clean and polish the glass to obtain the original anti-glare glass.

2. The process for processing anti-glare glass powder loss according to claim 1, characterized in that: The agent comprises silicon dioxide, organic alcohols and acidic auxiliary agents.

3. The process for processing anti-glare glass powder loss according to claim 2, characterized in that: The sandpaper is 3500# sponge sandpaper.

4. The process for processing anti-glare glass powder loss according to claim 3, characterized in that: The pressure of the sandpaper when grinding the glass is 9-11 kg.

5. A grinding tool for implementing the processing technology described in any one of claims 1 to 4, comprising a shell, characterized in that: The upper side of the shell has a first groove and is provided with a mounting plate, the bottom of the shell is provided with supporting legs, and a plurality of springs are provided between the mounting plate and the shell. When the mounting plate and the glass are subjected to pressure, the plurality of springs generate elastic force; at least one negative pressure suction port is provided on the mounting plate, and a pipe of the negative pressure suction port passes through the bottom of the shell and then extends outward.

6. The abrasive tool according to claim 5, characterized in that: A first baffle extending downward is arranged on the outer four sides of the mounting plate, and the four sides of the first baffle fit the inner side of the first groove for positioning; a second groove for placing glass is arranged in the middle area of ​​the mounting plate, and the four sides of the glass fit the inner side of the second groove for positioning.

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