Glass thinning etching system and etching method

Abstract

The present application relates to an etching system and etching method for glass thinning, and relates to the field of etching technology, wherein the etching system for glass thinning includes a water pool and a conveying unit, the upper end of the water pool is open and can correspond to the conveying unit; an air blowing component is installed on an inner wall surface of the water pool; the air blowing component includes a plurality of bubble generating units, each of the bubble generating units includes an air duct for connecting to an air source, a plurality of bubble generators are installed on the air duct, the bubble generators are all connected to the inside of the air duct, and the bubble outlets of the bubble generators are all facing the inside of the water pool; the plurality of bubble generating units are independent of each other. During the etching process, the etching system of the present application can operate different numbers of bubble generating units according to the amount of etched glass to generate different amounts of bubbles, so that the removal of etching impurities on the glass surface is more accurate, the etching is more uniform, and the glass etching effect is improved.

Description

Technical Field

[0001] The present invention relates to the field of etching technology, and in particular to an etching system and an etching method for glass thinning. Background Art

[0002] Recently, various electronic product displays have been studied, such as liquid crystal displays (LCDs), plasma display panels (PDPs), electroluminescent displays (ELDs), and vacuum fluorescent displays (VFDs). Among these displays, glass (e.g., TFT, LCD) has been most actively studied due to its good image quality and low power consumption, although it has various defects.

[0003] After the glass is produced, the thickness of the glass needs to be reduced due to different customer needs. Therefore, an etching tank is introduced. The glass is placed inside the etching tank and its thickness is reduced by adding appropriate chemicals. The etching tank plays an increasingly important role in reducing the thickness of the glass. However, impurities generated during the etching process adhere to the surface of the glass, making the surface of the glass rough. Therefore, it is necessary to remove the impurities on the surface of the glass.

[0004] In the related art, air is filled into the etching groove to form bubbles in the etching groove, and the impurities attached to the glass surface are separated by splitting the bubbles. However, the size and quantity of glass to be etched in the etching groove are different, and the conventional method of filling the etching groove with air easily causes uneven removal of glass impurities, affecting the quality of glass etching. Summary of the invention

[0005] In order to solve the problem of uneven removal of surface etching impurities during glass etching, the present application provides a glass thinning etching system and etching method.

[0006] The present application provides a glass thinning etching system, comprising a water pool and a conveying unit for conveying glass, wherein the upper end of the water pool is open and corresponds to the conveying unit; an air blowing assembly is installed on an inner wall surface of the water pool;

[0007] The inflation assembly includes a plurality of bubble generating units, each of which includes an air duct for connecting to an air source, a plurality of bubble generators being mounted on the air duct, each of which is connected to the interior of the air duct, and the bubble outlets of the bubble generators are all directed toward the interior of the water pool; the plurality of bubble generating units are independent of each other.

[0008] By adopting the above technical solution, multiple bubble generating units are used to form bubbles in the water pool, and the bubbles burst during their rising process to separate impurities attached to the glass surface. At the same time, the multiple bubble generating units work independently of each other, so that different numbers of bubble generating units can be operated according to the amount of etched glass to generate different amounts of bubbles.

[0009] Furthermore, the air blowing assembly also includes a base, and the plurality of bubble generating units are arranged on the base along a first direction. The air blowing assembly also includes sealing covers located at both ends of the plurality of bubble generating units, and the air ducts in the plurality of bubble generating units located at the same end are all connected to the same sealing cover, and each sealing cover is connected to the air source.

[0010] By adopting the above technical solution, two sealing covers are used to seal the two ends of multiple air ducts respectively, thereby ensuring the sealing between the air ducts and the air source, so that the air source connected to the sealing cover can be connected to the air duct from both ends of the air duct. At the same time, the air source can enter the sealing cover first and then enter the air duct.

[0011] Furthermore, each of the sealing covers is provided with a blocking plate, and the blocking plate is provided with a plurality of communication holes, the plurality of communication holes are distributed at intervals in the first direction, and correspond one-to-one to the plurality of air guide pipes;

[0012] The opening lengths of the multiple communicating holes on one of the blocking plates gradually increase in the first direction, and the opening lengths of the multiple communicating holes on the other blocking plate gradually decrease in the first direction.

[0013] By adopting the above technical solution, the air source entering the sealing cover can enter different air guide pipes according to the position of the blocking plate, so that different numbers of bubble generating units can generate bubbles in the water pool to adapt to different numbers of glasses in the water pool;

[0014] At the same time, the connecting holes of the sealing plates in the two sealing covers are arranged in opposite directions, so that the bubble generating units at different positions can be adjusted to access the air source to adapt to the glass at different positions in the pool.

[0015] Furthermore, each of the blocking plates is connected to a driving unit for driving the blocking plates to move along the first direction.

[0016] By adopting the above technical solution, the blocking plate can be conveniently driven to move according to actual needs, so as to adapt to the required number or position of bubble generating units to access the air source and perform bubble generation work.

[0017] Furthermore, a shielding cover is provided on the base, and the plurality of bubble generating units and the sealing cover are all located inside the shielding cover. The bubble generators all include fine holes, and the fine holes penetrate the shielding cover and extend to the outside of the shielding cover.

[0018] By adopting the above technical solution, the shielding cover can contact with the etching liquid in the water pool, thereby preventing the etching liquid from being immersed in the air blowing component.

[0019] Further, the water pool includes a mounting cavity for mounting the air blowing assembly, and the mounting cavity is located on the wall surface of the water pool;

[0020] The installation cavity comprises an installation opening facing the middle of the pool, and the bubble generator faces the middle of the pool along the installation opening.

[0021] By adopting the above technical solution, it is ensured that the bubble generator of the air blowing component can correspond to the inside of the water pool and directly contact the etching liquid, so that bubbles can be generated in the etching liquid.

[0022] Furthermore, the pool also includes a detachable door for sealing the installation opening;

[0023] The installation cavity is also provided with a slide rail assembly for slidingly installing the base, and the air blowing assembly reciprocates along the slide rail assembly toward the installation opening;

[0024] The size of the surface of the base for mounting the bubble generating unit is larger than the size of the mounting opening, and the size of the shielding cover does not exceed the size of the mounting opening.

[0025] By adopting the above technical solution, a detachable warehouse door is used. After the warehouse door is removed, the air blowing assembly can be conveniently installed on the wall of the pool. The pool is used as an etching pool, so that bubbles are generated in the pool through the air blowing assembly. At the same time, after the warehouse door is closed, the pool can be used as a cleaning pool. Compared with the fixed use position of the pool in the conventional etching system, the flexibility of the use of the pool is improved; and the size setting of the base and the shielding cover also ensures the sealing between the air blowing assembly and the pool to avoid installation.

[0026] Furthermore, a plurality of the air blowing assemblies are provided on a wall surface of the water pool and distributed along the second direction.

[0027] By adopting the above technical solution, the flexibility of bubble production in the water pool is improved, bubbles can be generated at different positions of the water pool and different bubble amounts can be generated, further improving the flexibility of its use.

[0028] Furthermore, the water pool is connected to an etching liquid circulation system, and the etching liquid circulation system includes an etching liquid storage unit and a plurality of sedimentation boxes connected in sequence, the etching liquid storage unit is connected to the water pool through a first pipe, at least one of the sedimentation boxes is connected to the water pool through a second pipe, and at least one of the sedimentation boxes is connected to the first pipe.

[0029] By adopting the above technical solution, the etching liquid can be recycled and the production cost can be reduced.

[0030] The present application also provides a glass thinning etching method, using the above etching system, the method comprising the following steps:

[0031] Glass loading: placing the glass to be etched on the conveying unit and conveying it to the water pool through the conveying unit;

[0032] Glass cleaning: placing the glass in a water pool for cleaning through a conveying unit to clean the dirt on the surface of the glass to be etched;

[0033] Etching thinning, placing the glass in another water pool through the conveying unit, and injecting etching liquid into the water pool. During the etching process of the glass, the amount of bubbles generated by the blowing component is adjusted according to the number or position of the glass;

[0034] Inspection: Check whether the glass is etched to the target thickness. If the target thickness is not reached, the etching thinning step is performed again. If the target thickness is reached, the etching process is completed.

[0035] By adopting the above technical solution, the production amount and position of bubbles can be adjusted according to the needs of the glass during the etching process, the thickness of the glass etching can be adapted, the etching can be made more uniform, the glass etching effect can be improved, and the use can be more flexible and convenient.

[0036] In summary, the present application includes at least one of the following beneficial technical effects:

[0037] Different numbers of bubble generating units can be operated according to the amount of etched glass to generate different amounts of bubbles, and bubbles can be generated at different positions according to the size and position of the glass, so that the etching impurities on the glass surface can be removed more accurately, the etching can be more uniform, and the glass etching effect can be improved.

[0038] In the glass etching process, it is more flexible, convenient, accurate and effective to use, and also reduces unnecessary waste of gas source and reduces costs.

[0039] In the etching system, the etching liquid in the water pool can be recycled and reused, further reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 A schematic diagram of an etching system provided by the present invention;

[0041] Figure 2 A schematic diagram of the water pool structure provided by the present invention;

[0042] Figure 3 A schematic diagram of the structure of the air blowing assembly provided by the present invention;

[0043] Figure 4 A schematic diagram of the installation structure of the sealing plate in the left sealing cover provided by the present invention;

[0044] Figure 5 A schematic diagram of the installation structure of the sealing plate in the right sealing cover provided by the present invention;

[0045] Figure 6 This is a schematic diagram of the cross-sectional structure of the bubble generating unit provided by the present invention.

[0046] Numbers in the figure:

[0047] 100, water tank; 200, air blowing assembly; 21, bubble generating unit; 211, air guide tube; 212, bubble generator; 2121, fine hole; 2122, bubble generating filter; 22, base; 23, sealing cover; 24, blocking plate; 25, connecting hole; 26, driving unit; 27, shielding cover; 3, installation cavity; 31, installation opening; 32, compartment door; 33, slide rail assembly; 331, slide rail; 332, slider; 4, etching liquid circulation system; 41, etching liquid storage unit; 42, first pipeline; 43, second pipeline; 44, primary sedimentation tank; 45, secondary sedimentation tank; 46, tertiary sedimentation tank. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] Please refer to Figure 1As shown, a glass thinning etching system includes a water pool 100 and a conveying unit (not shown in the figure) for conveying glass. The upper end of the water pool 100 is open and corresponds to the conveying unit. A plurality of water pools 100 are arranged along the conveying direction of the conveying unit. The conveying unit conveys the glass and is placed in the corresponding water pool 100 along the upper end opening of the water pool 100. Some of the water pools 100 are etching pools, and some of the water pools 100 are cleaning pools. In the water pool used for etching, at least one wall surface is installed with an air blowing component 200. The water pool 100 is filled with an etching liquid (such as hydrofluoric acid). The glass is etched in the water pool 100. A large number of bubbles can be generated in the water pool 100 through the air blowing component 200, and the etching impurities attached to the glass surface are peeled off by the bubbles.

[0050] Specifically, the air blowing assembly 200 includes a plurality of bubble generating units 21, each of which includes an air duct 211 for connecting to an air source, and a plurality of bubble generators 212 are installed on the air duct 211, and the bubble generators 212 are all connected to the inside of the air duct 211, and the bubble outlets of the bubble generators 212 are all toward the inside of the water pool 100, so that bubbles are generated in the water pool 100; the plurality of bubble generating units 21 are independent of each other, and can work separately and generate different amounts of bubbles, so that different numbers of bubble generating units 21 can be selected to work as needed, avoiding the situation where each bubble generating unit 21 can only work at the same time, thereby improving the flexibility of the bubble generation amount of the bubble generating unit 21 to adapt to different numbers of glasses to be etched in the water pool 100.

[0051] like Figure 2 and Figure 3 As shown, the air blowing assembly 200 also includes a base 22, each bubble generating unit 21 is arranged horizontally and arranged at intervals in the vertical direction on the base, and the air blowing assembly 200 also includes sealing covers 23 located at both ends of the multiple bubble generating units 21, and the air guide pipes 211 in the multiple bubble generating units 21 located at the same end are all connected to the same sealing cover 23, and each sealing cover 23 is connected to the air source. The two ends of each air guide pipe 211 are respectively connected to the sealing cover 23, so that the two ends of the air guide pipe 211 are connected to the air source, and the setting of the sealing cover 23 can also ensure the sealing between the air guide pipe 211 and the air source, and the air source can enter each air guide pipe 211 after entering the sealing cover 23, and after any sealing cover 23 is connected to the air source, it can supply air to the air guide pipe 211.

[0052] For example Figure 3 , Figure 4 and Figure 5As shown, each sealing cover 23 is provided with a sealing plate 24, and the sealing plate 24 is provided with a plurality of connecting holes 25, and the plurality of connecting holes 25 are spaced apart in the first direction and correspond one-to-one to the plurality of air guide tubes 211; in the present embodiment, three bubble generating units 21 are provided, and each bubble generating unit 21 includes an air guide tube 211, and the sealing plate 24 is provided with three connecting holes 25 corresponding to the three air guide tubes 211 respectively, and the air source entering the sealing cover 23 enters the corresponding air guide tube 211 through the connecting holes 25.

[0053] A blocking plate 24 is provided in each of the two sealing covers, wherein the opening lengths of the multiple connecting holes 25 on one blocking plate 24 gradually increase in the vertical direction, and the opening lengths of the multiple connecting holes 25 on the other blocking plate 24 gradually decrease in the vertical direction. Specifically, the three connecting holes 25 are respectively a circular hole, a waist-shaped hole, and a strip hole, wherein the waist-shaped hole and the strip hole have the same length extension direction, and the length of the strip hole is greater than the length of the waist-shaped hole, and the circular holes, waist-shaped holes, and strip holes are arranged in sequence from top to bottom on one blocking plate 24, and the strip holes, waist-shaped holes, and circular holes are arranged in sequence from top to bottom on the other blocking plate 24.

[0054] In addition, the blocking plate 24 is connected to a driving unit 26 for driving it to move in the vertical direction. The driving unit 26 can be a motor, which drives the blocking plate 24 to reciprocate in the vertical direction by rotating the motor drive shaft. The rotation control of the motor drive shaft is not the invention point of the present application, but a conventional technical means. Technical personnel in the relevant field should know and understand it, and it will not be elaborated here.

[0055] When the blocking plate 24 is moved by the driving unit 26, the relative positions of the connecting holes 25 on the blocking plate 24 and the ports of the air duct 211 are adjusted, and each connecting hole 25 is misaligned with the corresponding port of the air duct 211, thereby blocking the port of the air duct 211. Since the lengths of the connecting holes 25 are different, when the blocking plate 24 is located at different positions, different air ducts 211 can be connected to the air source entering the sealing cover 23. Figure 3 and Figure 4 When the sealing plates 24 in the sealing covers 23 on the left and right sides of the air blowing assembly 200 are connected to the air pipes 211 through the connecting holes 25, and the two sealing covers 23 are connected to the air source, the bubble generating units 21 work, and the air pipes 211 have sufficient air source. A large number of bubbles are generated in the water pool 100 through the bubble generator 212. This is applicable to the case where there are a large number of glasses in the water pool 100. The large amount of bubbles can remove the etching impurities on the surface of each glass through the bubbles, thereby improving the efficiency and effect of impurity removal and avoiding the low impurity removal rate during the etching process that affects the etching effect.

[0056] When the sealing plate 24 in one of the left and right sealing covers 23 moves in the vertical direction and blocks one end of each air guide tube 211, the other end of each air guide tube 211 remains connected with the other sealing cover 23, the air source enters the sealing cover 23, and the bubble generator 212 on each air guide tube 211 generates bubbles. The area where bubbles are generated in the water pool 100 is large, which is suitable for the situation where there is large-sized glass in the water pool 100, so that impurities can be quickly removed from different areas of the surface of the glass through bubbles.

[0057] Each bubble generating unit 21 is located at different heights on the wall of the pool 100. When the glass entering the pool 100 is at different depths in the pool 100, the glass also corresponds to the bubble generating units 21 at different positions. To this end, the positions of the blocking plates 24 in the left and right sealing covers 23 can be adjusted to adjust different air guide pipes 211 to connect to the air source.

[0058] Specifically, Figure 4 and Figure 5 As shown, in the initial state, the left and right ends of each air guide tube 211 are respectively connected to the connecting holes 25 of the left and right sealing plates 24, the left end of each air guide tube 211 is connected to the bottom of the corresponding connecting hole 25 on the left sealing plate 24, and the right end of each air guide tube 211 is connected to the top of the corresponding connecting hole 25 on the right sealing plate 24.

[0059] When the bubble generating unit 21 above the air blowing component 200 needs to generate bubbles, the left sealing plate 24 moves upward to seal the left end of each air guide tube 211, and the position of the right sealing plate 24 is adjusted. The right sealing plate 24 gradually moves upward, and the air guide tubes 211 of each bubble generating unit 21 on the air blowing component 200 are gradually blocked by the right sealing plate 24 from bottom to top. According to the needs of the bubble generating area, the bubble generating unit 21 above the air blowing component 200 can be retained to perform bubble generating work.

[0060] When the bubble generating unit 21 below the air blowing assembly 200 is required to generate bubbles, the right blocking plate 24 moves downward to block the right end of each air guide tube 211, and the position of the left blocking plate 24 is adjusted, and the left blocking plate 24 gradually moves downward, and the air guide tubes 211 of each bubble generating unit 21 on the air blowing assembly 200 are gradually blocked from top to bottom by the left blocking plate 24. According to the needs of the bubble generating area, the bubble generating unit 21 below the air blowing assembly 200 can be retained to perform the bubble generating work. In this way, multiple bubble generating units 21 can generate bubbles in different height areas in the water pool 100, which is suitable for the separation of etching impurities on the glass surface at different heights in the water pool 100, which is flexible and convenient.

[0061] For example Figure 3 and Figure 6As shown, a shielding cover 27 is also provided on the base 22, and a plurality of bubble generating units 21 and a sealing cover 23 are all located in the shielding cover 27. The bubble generators 212 all include fine holes 2121, which penetrate the shielding cover 27 and extend to the outside of the shielding cover 27. The shielding cover 27 can cover and encapsulate the bubble generating units 21 to prevent the liquid in the pool 100 from being immersed in the air blowing assembly 200. The shielding cover 27 can play a good blocking and sealing role. At the same time, a plurality of through holes corresponding to the bubble generators 212 are provided on the shielding cover 27 to facilitate the bubble generators 212 to generate bubbles in the pool 100. The connection between each bubble generator 212 and the shielding cover 27 is also sealed to ensure a waterproof effect. Among them, the fine hole 2121 of the bubble generator 212 has a diameter of 0.1mm to 10mm, and a bubble generating filter 2122 with a pore size of 0.1μm to 100μm is also installed at the fine hole 2121. The air source enters the bubble generator 212, passes through the fine hole 2121 and passes through the bubble generating filter 2122 to generate countless microbubbles, and are discharged into the water pool 100, so that the etching impurities on the glass surface are separated by these microbubbles.

[0062] For example Figure 2 As shown, in this embodiment, the water pool 100 includes a mounting cavity 3 for mounting the air blowing assembly 200, and the mounting cavity 3 is located on the inner wall surface of the water pool 100;

[0063] The installation cavity 3 includes an installation opening 31 toward the middle of the water pool 100, and the bubble generator 212 is along the installation opening 31 toward the middle of the water pool 100, ensuring that the bubble generator 212 of the air blowing assembly 200 can correspond to the inside of the water pool 100 and directly contact the etching liquid, so that bubbles can be generated in the etching liquid.

[0064] In addition, the pool 100 also includes a removable bin door 32 for sealing the installation opening 31;

[0065] A slide rail assembly 33 for a sliding installation base is also provided in the installation cavity 3, and the air blowing assembly 200 reciprocates along the slide rail assembly 33 toward the installation opening 31; the slide rail assembly 33 includes a slide rail 331 installed in the installation cavity 3 and a slider 332 installed on the base, the slide rail 331 extends toward the installation opening 31 in the installation cavity 3, and the base moves on the slide rail 331 through the slider 332, so that the slide rail assembly 33 moves toward the installation opening 31, and an opening and closing door (conventional technology, not shown in the figure) is provided on the outer wall of the pool 100. When the opening and closing door is in the open state, it can push the air blowing assembly 200 to move along the slide rail assembly 33 toward the installation opening 31.

[0066] The size of the surface of the base 22 for installing the bubble generating unit 21 is larger than the size of the installation opening 31, the size of the shielding cover 27 does not exceed the size of the installation opening 31, the size of the shielding cover 27 is infinitely close to the size of the installation opening 31, and the shielding cover 27 and the installation opening 31 are sealed, thereby ensuring the sealing of the inflation assembly 200 and the water pool 100 to avoid installation.

[0067] Among them, the warehouse door 32 is detachable. After the warehouse door 32 is disassembled, the air blowing component 200 can be conveniently installed on the wall of the pool 100. The pool 100 is used as an etching pool, so that bubbles are generated in the pool 100 through the air blowing component 200. At the same time, after the warehouse door 32 is closed, the pool 100 can be used as a cleaning pool. Compared with the fixed use position of the pool 100 in the conventional etching system, the flexibility of the use of the pool 100 is improved. According to needs, the number and position of the pool 100 as an etching pool or a cleaning pool in the etching system are no longer fixed, which makes it more convenient and flexible to use and adapt to various etching situations.

[0068] In another embodiment, a plurality of air blowing assemblies 200 are provided on an inner wall surface of the water pool 100 and are distributed in a lateral direction. The air blowing assemblies 200 at different positions can be adjusted to work according to the placement position of the glass to be etched in the water pool 100 to correspond to the position of the glass. The bubble generation position is more accurate, and it is not necessary for all the air blowing assemblies 200 to work, which saves energy consumption and reduces production costs. At the same time, the flexibility of bubble production in the water pool 100 is improved, bubbles can be generated at different positions of the water pool 100, and different bubble amounts can be generated, further improving its flexibility of use.

[0069] In another embodiment, each inner wall surface of the pool 100 is provided with an air blowing assembly 200 .

[0070] For example Figure 1As shown, the water pool 100 is connected to the etching liquid circulation system 4, and the etching liquid circulation system 4 includes an etching liquid storage unit 41 and a plurality of sedimentation tanks connected in sequence. The etching liquid storage unit 41 is connected to the water pool 100 through a first pipe 42, at least one sedimentation tank is connected to the water pool 100 through a second pipe 43, and at least one sedimentation tank is connected to the first pipe 42. The sedimentation tank includes a primary sedimentation tank 44, a secondary sedimentation tank 45 and a tertiary sedimentation tank 46 which are connected in sequence. The primary sedimentation tank 44 is connected to the water pool 100 through the second pipe 43. The wastewater in the water pool 100 is transported to the primary sedimentation tank 44 through the second pipe, and is precipitated three times in the primary sedimentation tank 44, the secondary sedimentation tank 45 and the tertiary sedimentation tank 46. After the impurities in the wastewater are precipitated, the precipitated wastewater in the tertiary sedimentation tank 46 can be reused and is connected to the first pipe 42 through the tertiary sedimentation tank 46. The etching liquid in the etching liquid storage unit 41 is filled into the water pool 100 through the first pipe, and the precipitated wastewater in the tertiary sedimentation tank 46 is also filled into the water pool 100 through the first pipe at the same time, and is reused. The etching liquid is recycled, thereby reducing the production cost.

[0071] The present application also provides a glass thinning etching method, comprising the above-mentioned etching system, the method comprising the following steps:

[0072] Glass loading, placing the glass to be etched on the conveying unit, and conveying it to the water pool 100 through the conveying unit;

[0073] Glass cleaning: The glass is placed in a water pool 100 for cleaning by a conveying unit. In the water pool 100, closed doors 32 are installed on the inner wall of the water pool 100. The cleaning liquid in the water pool 100 can clean the dirt on the surface of the glass to be etched;

[0074] Etching thinning, the cleaned glass is placed in another water pool 100 through a conveying unit, and etching liquid is injected into the water pool 100, which is used as an etching pool 100. An air blowing component 200 is installed on the inner wall of the etching pool 100. During the etching thinning process of the glass, the amount of bubbles generated by the air blowing component 200 is adjusted to adapt to the glass condition in the etching pool 100;

[0075] When there are many glasses in the etching pool 100, the distance between each glass is small, and the etching impurities formed on the glass surface are large and difficult to remove. By making each bubble generating unit 21 in the air blowing assembly 200 work, and both ends of the air guide pipe 211 in the bubble generating unit 21 are connected to the air source, the air blowing assembly 200 continuously forms a large number of bubbles, thereby improving the efficiency of removing the etching impurities on the glass surface, and the uniformity is good, thereby ensuring the glass etching effect;

[0076] When the glass in the etching pool 100 is in the lower area of ​​the pool 100, the bubble generating units 21 located substantially below the air blowing assembly 200 are adjusted to work; when the glass in the etching pool 100 is in the upper area of ​​the pool 100, the bubble generating units 21 located substantially above the air blowing assembly 200 are adjusted to work, so that the bubble generating units 21 can correspond to the area where the glass in the pool 100 is located, and the bubble generating position is more targeted, which improves the working efficiency and reduces the energy consumption required for generating bubbles.

[0077] Inspection: Check whether the glass is etched to the target thickness. If the target thickness is not reached, the etching thinning step is performed again. If the target thickness is reached, the etching process is completed.

[0078] The etching system can adjust the production amount and position of bubbles according to the needs of the glass during the etching process, so as to make the etching more uniform, improve the glass etching effect, and be more flexible and convenient to use.

[0079] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A glass thinning etching system, characterized in that: It comprises a water pool (100) and a conveying unit for conveying glass, wherein the upper end of the water pool (100) is open and corresponds to the conveying unit; an air blowing assembly (200) is installed on an inner wall surface of the water pool (100); The air blowing assembly (200) comprises a plurality of bubble generating units (21), each of the plurality of bubble generating units (21) comprises an air guide pipe (211) for connecting to an air source, a plurality of bubble generators (212) are mounted on the air guide pipe (211), each of the bubble generators (212) is connected to the interior of the air guide pipe (211), and the bubble outlets of the bubble generators (212) are all directed toward the interior of the water pool (100); the plurality of bubble generating units (21) are independent of each other; The air blowing assembly (200) further comprises a base (22), a plurality of the bubble generating units (21) are arranged on the base (22) along a first direction, the air blowing assembly (200) further comprises sealing covers (23) located at both ends of the plurality of bubble generating units (21), the air guide pipes (211) in the plurality of bubble generating units (21) located at the same end are all connected to the same sealing cover (23), and each sealing cover (23) is connected to the air source; A blocking plate (24) is provided in each of the sealing covers (23), and a plurality of communication holes (25) are provided on the blocking plate (24), and the plurality of communication holes (25) are distributed at intervals in the first direction and correspond one-to-one to the plurality of air guide tubes (211); the opening lengths of the plurality of communication holes (25) on one of the blocking plates (24) gradually increase in the first direction, and the opening lengths of the plurality of communication holes (25) on the other of the blocking plates (24) gradually decrease in the first direction; The blocking plates (24) are each connected to a driving unit (26) for driving them to move along a first direction.

2. The etching system according to claim 1, characterized in that A shielding cover (27) is also provided on the base (22), and the plurality of bubble generating units (21) and the sealing cover (23) are all located in the shielding cover (27). The bubble generators (212) all include fine holes (2121), and the fine holes (2121) penetrate the shielding cover (27) and extend to the outside of the shielding cover (27).

3. The etching system according to claim 2, characterized in that: The water pool (100) comprises a mounting cavity (3) for mounting the air blowing assembly (200), and the mounting cavity (3) is located on the wall surface of the water pool (100); The installation cavity (3) comprises an installation opening (31) facing the middle of the water pool (100), and the bubble generator (212) is arranged along the installation opening (31) facing the middle of the water pool (100).

4. The etching system according to claim 3, characterized in that: The pool (100) further comprises a detachable door (32) for sealing the installation opening (31); A slide rail assembly (33) for slidingly mounting the base (22) is also provided in the installation cavity (3), and the air blowing assembly (200) reciprocates along the slide rail assembly (33) toward the installation opening (31); The size of the surface of the base (22) on which the bubble generating unit (21) is mounted is larger than the size of the mounting opening (31), and the size of the shielding cover (27) does not exceed the size of the mounting opening (31).

5. The etching system according to claim 1, characterized in that: A plurality of the air blowing components (200) are disposed on a wall surface of the water pool (100) and are distributed along a second direction.

6. The etching system according to claim 1, characterized in that: The water pool (100) is connected to an etching liquid circulation system (4), and the etching liquid circulation system (4) comprises an etching liquid storage unit (41) and a plurality of sequentially connected sedimentation boxes, the etching liquid storage unit (41) is connected to the water pool (100) via a first pipe (42), at least one of the sedimentation boxes is connected to the water pool (100) via a second pipe (43), and at least one of the sedimentation boxes is connected to the first pipe (42).

7. A glass thinning etching method, characterized in that: Using the etching system according to any one of claims 1 to 6, the method comprises the following steps: Glass loading, placing the glass to be etched on a conveying unit and conveying it to a water pool (100) through the conveying unit; glass cleaning, placing the glass in a water pool (100) through the conveying unit for cleaning to clean dirt on the surface of the glass to be etched; Etching and thinning, placing the glass in another water pool (100) through a conveying unit, injecting etching liquid into the water pool (100), and adjusting the amount of bubbles generated by the air blowing component (200) according to the amount or position of the glass during the etching process of the glass; Inspection: Check whether the glass is etched to the target thickness. If the target thickness is not reached, the etching thinning step is performed again. If the target thickness is reached, the etching process is completed.

Images