Glass cover plate AG after spraying, etching and cleaning integrated device and cleaning method

Abstract

The application provides a glass cover plate AG spraying, post-deposition cleaning and integrated device and a cleaning method. The device comprises a feeding track, a crane, a control cabinet and a plurality of slots arranged in sequence. The slots are sequentially first to fifteenth slots. The feeding track is used for loading the glass with inserted frames. The crane is used for obtaining the hanging basket loaded with the glass cover plate before the post-deposition cleaning from the feeding track and moving the hanging basket from the first feeding position of the row frame in sequence. The first slot is a soaking tank, the soaking tank is provided with a soaking liquid, and the hanging basket is moved into the first slot for soaking. The second to fourth slots are cleaning agent liquid slots, which are used for cleaning the AG sprayed layer on the surface of the glass. The fifth slot is a spraying tank, which is provided with a spraying device. The hanging basket is moved into the spraying device for spraying cleaning. The sixth to tenth slots are pure water cleaning slots. The application can effectively solve the technical problems in the AG glass cover plate spraying industry.

Description

Technical Field

[0001] This invention relates to the field of AG spray coating cleaning technology for glass covers, specifically to an integrated device and method for removing and cleaning AG spray coatings from glass covers. Background Technology

[0002] AG glass cover, also known as anti-glare glass cover, is a type of functional cover that undergoes a special processing of the glass surface. Its characteristic is that it transforms the original specular reflection of the glass surface into a matte, diffuse reflection surface (with an uneven texture). When used in displays, anti-glare glass effectively prevents ambient light from interfering with the displayed content, improves the viewing angle of the screen, reduces screen reflections, and achieves anti-glare effects such as resistance to lamp shadows and sunlight, resulting in clearer content and more vibrant colors.

[0003] AG spraying technology for glass covers is a mature process, but it has very high requirements for AG chemicals and the production environment. It is usually carried out in a Class 1000 cleanroom. The industry's production yield is generally between 90% and 92%, with defects such as fuzz, impurities, and white spots accounting for 5% to 6%. These defects are directly scrapped. Therefore, due to this, the yield of AG glass cover spraying has not made a significant breakthrough. Summary of the Invention

[0004] The purpose of this invention is to provide an integrated device and method for cleaning and removing AG coatings after spraying, which can effectively solve the technical problem of low quality in the AG glass cover spraying industry.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0006] An integrated device for AG spraying and cleaning of glass cover plates includes a feeding track, a crane arm, a control cabinet, and several slots arranged in sequence, which are numbered from the first to the fifteenth slot.

[0007] The loading track is used to load the pre-assembled glass;

[0008] The boom is used to retrieve the baskets containing the glass covers before stripping and cleaning from the loading track and moves sequentially from the first material position of the gantry.

[0009] The first tank is a soaking tank, which is filled with soaking solution. The basket is moved to the first tank for soaking.

[0010] The second to fourth tanks are cleaning solution tanks, used to clean the AG coating on the glass surface.

[0011] The fifth tank is a spray tank, which is equipped with a spray device. The basket is moved to the spray device for spray cleaning.

[0012] Tanks six through ten are pure water rinsing tanks. The suspended baskets are moved sequentially into these tanks for rinsing.

[0013] The eleventh tank is the slow-pull tank; the basket moves to the slow-pull pure water tank.

[0014] Hot air drying devices are installed in the twelfth to fifteenth tanks. The baskets are moved sequentially to the hot air drying devices for drying. The control cabinet is used to control the parameters of the integrated device.

[0015] The soaking solution is mainly composed of activators, scale inhibitors, surfactants, buffers and additives. The concentration after preparation needs to reach 10% to 20% ppm and the pH value needs to be greater than 12. The cleaning agent concentration is 3% to 5% ppm and the pH value is 7 to 12. The soaking time is 120 to 180 seconds. It plays a role in softening and removing the AG spray coating on the glass surface.

[0016] The cleaning agent is a T-90 alkaline solvent with a concentration of 35% to 40% ppm. After being mixed with pure water, its concentration is 3% to 5% ppm, with a pH value of 7 to 12. The soaking time for each tank is 120 to 180 seconds, and the ultrasonic frequency is set to 0.5 Hz to 1.5 Hz to soften and deeply clean the AG spray coating on the glass surface.

[0017] Further optimization: when spraying in the fifth tank, the spraying time is set to 30-60 seconds.

[0018] The sixth to tenth tanks are pure water cleaning tanks. The pure water has a resistivity greater than 15 MΩ*cm and a conductivity less than 0.1 uS / cm. The ultrasonic frequency is 1.5 Hz to 2.5 Hz.

[0019] Further specified, the ultrapure water in the slow-pull tank has a resistivity greater than 15 MΩ*cm and a conductivity less than 0.1 uS / cm, with the temperature parameters set at 65℃~85℃ and the time at 100-150 seconds.

[0020] When the hot air drying device performs hot air drying, the drying temperature is 90℃-120℃ and the drying time is 120 seconds-180 seconds.

[0021] Further defining the invention:

[0022] The surfactant is: 5% polyether L-62

[0023] The scale inhibitor is: 10% sodium NTA-3.

[0024] Surfactant: LF-431 8%

[0025] The buffer is: 8% sodium acetate.

[0026] The additive is: 15% sodium HEDP-4.

[0027] The present invention also discloses a method for cleaning and removing AG spray coating on glass covers, which includes using the above-mentioned integrated device for cleaning and removing AG spray coating on glass covers to clean the glass covers.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] This invention addresses the shortcomings of existing AG plating methods by providing a process for removing and cleaning defective AG plating from glass covers, thereby improving yield and enabling reuse. The method utilizes ultrasonic cleaning equipment to automate the AG plating removal process by controlling the proportion of the soaking solution, soaking time, soaking temperature, ultrasonic cleaning frequency, spray cleaning time, pure water rinsing, slow-pull time and temperature, and hot air drying. Furthermore, the AG plating removal process is integrated with the ultrasonic cleaning process, achieving a unified removal and cleaning operation. This process ensures clean removal without affecting product performance, is simple, and requires no manual operation after setup. The overall yield of AG plating produced using this method can reach over 96%, effectively reducing scrap rates and production costs. Attached Figure Description

[0030] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0032] Figure label:

[0033] 1-Control cabinet; 2-Feeding track; 3-First slot; 4-Second slot; 5-Third slot; 6-Fourth slot; 7-Fifth slot; 8-Sixth slot; 9-Seventh slot; 10-Eighth slot; 11-Ninth slot; 12-Tenth slot; 13-Eleventh slot; 14-Twelfth slot; 15-Thirteenth slot; 16-Fourteenth slot; 17-Fifteenth slot; 18-Blower cooling device; 19-Hot air drying device; 20-Throwing device; 21-Secondary slot circulation device; 22-Feeding track. Detailed Implementation

[0034] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the embodiments of the invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0035] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of the present invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0037] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0038] In embodiments of the present invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0039] The following disclosure provides many different implementations or examples for carrying out different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0040] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0041] Example 1

[0042] This embodiment discloses an integrated device for AG spraying and cleaning of glass cover plates, including a feeding track 2, a crane arm, a control cabinet, and a number of slots arranged in sequence, which are the first to the fifteenth slots 17 in sequence.

[0043] The loading track 2 is used to load the pre-assembled glass;

[0044] The boom is used to retrieve the basket containing the glass cover plates before decoating and cleaning from the loading track 2 and moves sequentially from the first material position of the gantry;

[0045] The first tank 3 is a soaking tank, which is filled with soaking solution. The basket is moved to the first tank 3 for soaking.

[0046] The second to fourth tanks 6 are cleaning agent tanks, used to clean the AG spray coating on the glass surface.

[0047] The fifth slot 7 is a spray tank, which is equipped with a spray device. The basket is moved to the spray device for spray cleaning.

[0048] Tanks six through ten are pure water rinsing tanks. The suspended baskets are moved sequentially into these tanks for rinsing.

[0049] The eleventh slot, 13, is a slow-pull tank, specifically a slow-pull pure water tank. The basket moves to the slow-pull pure water tank and moves slowly.

[0050] Hot air drying devices 19 are installed in the twelfth slot 14 to the fifteenth slot 17. The baskets are moved to the hot air drying devices 19 in sequence for drying. The control cabinet 1 is used to control the parameters of the integrated device, specifically the temperature and time of the hot air drying device 19, the spraying time of the spraying device, etc., which will not be described in detail here.

[0051] The soaking solution is mainly composed of an active agent (polyether L-62), a scale inhibitor (NTA-3 sodium), a surfactant (LF-431), a buffer (sodium acetate), and an additive (HEDP-4 sodium). After preparation, the concentration needs to reach 10% to 20% ppm, and the pH value needs to be greater than 12. The cleaning agent concentration is 3% to 5% ppm, the pH value needs to be 7 to 12, and the soaking time is 120 to 180 seconds. It plays a role in softening and removing the AG spray coating on the glass surface.

[0052] Further optimization involves using T-90, an alkaline solvent with a concentration of 35%–40% ppm, which, after being diluted with pure water, achieves a concentration of 3%–5% ppm and a pH value of 7–12. The soaking time for each tank is 120–180 seconds, and the ultrasonic frequency is set to 0.5 Hz–1.5 Hz to soften and deeply clean the AG spray coating on the glass surface.

[0053] Further, when spraying in the fifth slot 7, the spraying time is set to 30-60 seconds.

[0054] Further specified, the sixth to tenth tanks 12 are pure water cleaning tanks, the pure water has a resistivity greater than 15MΩ*cm and a conductivity less than 0.1uS / cm, and the ultrasonic frequency is 1.5hz~2.5hz.

[0055] Further specified, the ultrapure water in the slow-drawing tank has a resistivity greater than 15 MΩ*cm and a conductivity less than 0.1 uS / cm. The temperature parameters are set at 65℃~85℃, and the time is 100-150 seconds. Using ultrasound and pure water, chemical residues and AG layer contaminants on the glass surface are further removed. The slow-drawing high temperature dries watermarks on the glass surface, thereby improving the cleanliness of the glass surface.

[0056] In actual use, ultrasonic cleaning equipment is installed in several tanks.

[0057] Further specifying, when the hot air drying device 19 performs hot air drying, the drying temperature is 90℃-120℃ and the drying time is 120 seconds-180 seconds.

[0058] In this embodiment:

[0059] The surfactant is: 5% polyether L-62

[0060] The scale inhibitor is: 10% sodium NTA-3.

[0061] Surfactant: LF-431 8%

[0062] The buffer is: 8% sodium acetate.

[0063] The additive is: 15% sodium HEDP-4

[0064] The ratio of surfactant, scale inhibitor, surfactant, buffer and additive is 5:10:8:8:15.

[0065] This invention addresses the shortcomings of existing AG plating methods by providing a process for removing and cleaning defective AG plating from glass covers, thereby improving yield and enabling reuse. The method utilizes ultrasonic cleaning equipment to automate the AG plating removal process by controlling the proportion of the soaking solution, soaking time, soaking temperature, ultrasonic cleaning frequency, spray cleaning time, pure water rinsing, slow-pull time and temperature, and hot air drying. Furthermore, the AG plating removal process is integrated with the ultrasonic cleaning process, achieving a unified removal and cleaning operation. This process ensures clean removal without affecting product performance, is simple, and requires no manual operation after setup. The overall yield of AG plating produced using this method can reach over 96%, effectively reducing scrap rates and production costs.

[0066] To facilitate a better understanding of the present invention by those skilled in the art, the present invention will be further described below in conjunction with specific cleaning methods.

[0067] A method for cleaning glass cover plates after AG spraying includes using the integrated cleaning device for cleaning glass cover plates after AG spraying as described in Example 1.

[0068] This embodiment is specifically a method for integrated cleaning and rework of defective AG spray-coated glass covers, including reagent concentration, reagent soaking time, reagent soaking temperature, ultrasonic cleaning frequency, spray cleaning time, pure water rinsing, slow pulling time and temperature, and hot air drying.

[0069] In actual use, the glass with the rack inserted is placed on the track, automatically fed in and limited, and then the boom picks up the basket containing the glass cover plate before decoating and cleaning from the loading track 2 and moves sequentially from one slot of the frame.

[0070] The first tank 3 is an immersion tank. The basket is moved to the first tank 3 for immersion. The immersion solution is mainly composed of surfactants, scale inhibitors, surfactants, buffers and additives. The concentration after preparation should reach 10% to 20% ppm, preferably 150% ppm, with a pH value above 12. The cleaning agent concentration is 3% to 5% ppm, preferably 4% ppm, with a pH value of 7 to 12. The immersion time is 120 to 180 seconds, preferably 160 seconds. It softens and removes the AG coating on the glass surface. If the concentration is below the range, the coating will not be removed cleanly and AG residue will easily appear. If the concentration is above the range, it will cause great damage to the glass surface and easily cause scratches.

[0071] The basket moves sequentially to the cleaning agent tanks in the second to fourth tanks (6) to clean the AG coating on the glass surface. The cleaning agent is T-90 with a concentration of 3% to 5% ppm, preferably 4% ppm, and a pH value of 7 to 12, making it an alkaline solvent, preferably pH 8. The soaking time in each tank is 120 to 180 seconds, preferably 160 seconds. The ultrasonic frequency is set to 0.5 Hz to 1.5 Hz to soften the AG coating on the glass surface for deep cleaning, preferably 1.0 Hz. In actual use, an air flotation dissolved air tank is used to mix air and water. A circulating pump pumps the water mixed with air to the bottom of the soaking tank, which serves as the main tank. The soaking tank has an air flotation water inlet, and circulation is achieved under the action of the auxiliary tank circulation device 21, which saves water resources. The auxiliary tank circulation device 21 can be a circulating water pump.

[0072] The fifth slot 7 is a spray tank. The basket is moved to the spray device for spray cleaning. The spray time is set to 30-60 seconds to rinse away the residual chemicals after immersion in the AG sprayed glass. It is preferred to spray for 50 seconds.

[0073] The sixth to tenth tanks (12) are pure water cleaning tanks. The baskets are moved sequentially into the pure water cleaning tanks for rinsing. The pure water has a resistivity greater than 15 MΩ*cm and a conductivity less than 0.1 uS / cm. An ultrasonic generator with an ultrasonic frequency of 1.5 Hz to 2.5 Hz and an agitator 20 are used to swing the ultrasonic waves and pure water up and down in the tanks to further remove chemical residues and AG layer dirt residues from the glass surface and improve the cleanliness of the glass surface.

[0074] The eleventh slot 13 is a slow-pull tank. The basket moves to the slow-pull pure water tank, where the pure water in the slow-pull tank has a resistivity greater than 15MΩ*cm and a conductivity less than 0.1uS / cm. The temperature parameter is set between 65℃ and 85℃, preferably 70℃, and the time is 100-150 seconds to dry the water marks on the glass surface, preferably 120 seconds.

[0075] Hot air drying devices 19 are installed in the twelfth to fifteenth slots 17. The baskets are moved sequentially to the hot air drying devices 19 for drying. The drying temperature is 90℃-120℃, preferably 100℃, and the drying time is 120 seconds-180 seconds, preferably 160 seconds. This evaporates and dries the moisture on the glass surface, and then the dried glass is cooled by a blower cooling device 18.

[0076] The crane arm moves the basket containing the glass cover plate after the glass AG decoating and cleaning is moved from the unloading position of the gantry to the unloading track 22.

[0077] This invention integrates the stripping and cleaning of AG spray-coated glass covers. Once the settings are configured, no manual operation is required, achieving fully automated operation and realizing the integrated stripping and cleaning effect of AG spray-coated glass covers, thereby improving efficiency and yield.

[0078] This invention involves feeding glass via a feeding track 2, immersing it in the first to fourth tanks 6 to remove the AG coating, rinsing it in the fifth tank 7 to remove any remaining AG residue, slowly drying the watermarks on the glass, and then unloading it via a baking mechanism and feeding track 22. A gantry crane arm is used to transfer the glass basket. The entire process is fully automated, controlling the mixing ratio of the cleaning agents, the immersion time, the temperature, the ultrasonic cleaning frequency, and the rinsing with pure water. This achieves an integrated cleaning and removal effect for the AG coating on glass covers, improving efficiency and yield.

[0079] Although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the invention.

[0080] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be noted that any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for integrated cleaning and de-plating after AG spraying of glass cover plates, characterized in that: The device adopts an integrated cleaning and removal system for AG spraying with glass cover plates, which includes a feeding track, a crane arm, a control cabinet, and several slots arranged in sequence, which are numbered from the first to the fifteenth slot. The loading track is used to load the pre-assembled glass; The boom is used to retrieve the baskets containing the glass covers before stripping and cleaning from the loading track and moves sequentially from the first material position of the gantry. The first tank is a soaking tank, which is filled with soaking solution. The basket is moved to the first tank for soaking. The second to fourth tanks are cleaning solution tanks, used to clean the AG coating on the glass surface. The fifth tank is a spray tank, which is equipped with a spray device. The basket is moved to the spray device for spray cleaning. Tanks six through ten are pure water rinsing tanks. The suspended baskets are moved sequentially into these tanks for rinsing. The eleventh tank is the slow-pull tank; the basket moves to the slow-pull pure water tank. Hot air drying devices are installed in the twelfth to fifteenth tanks. The baskets are moved sequentially to the hot air drying devices for drying. The control cabinet is used to control the parameters of the integrated device. The soaking solution is mainly composed of activators, scale inhibitors, surfactants, buffers and additives. The concentration after preparation should reach 10~20ppm and the pH value should be greater than 12. The cleaning agent concentration is 3~5ppm and the pH value is 7~12. The soaking time of the agent is 120 seconds to 180 seconds. It plays a role in softening and removing the AG spray coating on the glass surface. The surfactant is: 5% polyether L-62; The scale inhibitor is: 10% sodium NTA-3; Surfactant: LF-431 8%; The buffer is: 8% sodium acetate; The additive is: 15% sodium HEDP-4.

2. The integrated method for AG spraying and cleaning of glass cover plates according to claim 1, characterized in that: When spraying in the fifth tank, the spraying time is set to 30-60 seconds.

3. The integrated method for AG spraying and cleaning of glass cover plates according to claim 1, characterized in that: The sixth to tenth tanks are pure water cleaning tanks. The pure water has a resistivity greater than 15 MΩ*cm and a conductivity less than 0.1 uS / cm. The ultrasonic frequency is 1.5 Hz to 2.5 Hz.

4. The integrated method for AG spraying and cleaning of glass cover plates according to claim 1, characterized in that: The slow-pull tank produces ultrapure water with a resistivity greater than 15 MΩ*cm and a conductivity less than 0.1 uS / cm. The temperature parameters are set at 65°C~85°C and the time is 100-150 seconds.

5. The integrated method for AG spraying and cleaning of glass cover plates according to claim 1, characterized in that: When the hot air drying device performs hot air drying, the drying temperature is 90℃-120℃ and the drying time is 120 seconds-180 seconds.

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