Novel ultrathin glass single-side thinning method

Abstract

The invention belongs to the technical field of glass thinning processes, and discloses a novel ultrathin glass single-side thinning method, corresponding treatment operation is completed by an etching tank, and the etching tank comprises filtering circulation mechanisms arranged on the left side and the right side of the etching tank and used for conveying etching liquid. The placing shell is fixed on the right side of the bottom surface of an inner cavity of the etching groove and is used for placing a glass substrate; and the liquid spraying shell transversely moves in the etching groove and is used for spraying etching liquid to a to-be-thinned surface of glass. Through the cooperative design of the etching tank, the filtering circulating mechanism, the placing shell and the protection mechanism, the glass thinning standard-reaching part can be covered and isolated from acid mist contact, the glass thinning standard-reaching part of the glass thinning surface can be protected, the glass thinning uniformity is prevented from being influenced by acid mist, the thinning effect and quality are improved, the practicability is high, and the practicability is high. The problems that in the prior art, the thinning standard reaching position of the glass thinning face is inconvenient to protect, the glass thinning effect and quality are prone to being affected, and practicability is low are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of glass thinning technology, and in particular is a novel single-side thinning method for ultra-thin glass. Background Art

[0002] With the development of modern science and technology in my country, the production technology and equipment level of glass have been further improved. Ultra-thin glass, as a convenient, efficient and advanced glass product, also has great development space in the future fields of new energy, energy conservation and environmental protection, electronic information industry, construction industry, automobile industry, etc. due to its good economic benefits and superior performance. Among them, when thinning the TSP glass used in OLED displays, it is necessary to protect the side with ITO circuit with acid-proof film, and thin the other side.

[0003] Chemical etching thinning technology is based on the principle that hydrofluoric acid chemical solution reacts with the silicon dioxide on the surface of the glass substrate to dissolve it, and then the panel is etched to make the glass thinner. There are four main methods of chemical etching thinning technology, namely, multi-piece vertical immersion type, single-piece water spray flat type, single-piece vertical spray type and waterfall flow type.

[0004] In the prior art, a Chinese patent discloses a glass substrate thinning and etching device (publication number: CN203269786U), the main structure of which includes a cylinder, the cylinder is formed with an etching chamber with an opening facing upward, a movable support plate for fixing and supporting the glass substrate to be etched is rotatably and adjustably installed in the etching chamber, the cylinder is equipped with a rotating shaft extending into the etching chamber, the movable support plate is non-rotatably installed on the rotating shaft, the cylinder is equipped with a first drive motor and a first reducer connected to the power output shaft of the first drive motor at the periphery of the etching chamber, the power output shaft of the first reducer is drivingly connected to one end of the rotating shaft; a nozzle for draining the etchant to the glass substrate to be etched is installed above the movable support plate, and the cylinder The upper end of the cylinder body is provided with a supporting cross bar corresponding to the nozzle so as to be relatively slidable, and the nozzle is screwed on the supporting cross bar. The upper end of the cylinder body is also provided with a ball screw extending along the sliding direction of the supporting cross bar. The supporting cross bar is provided with a ball nut corresponding to the ball screw. The ball screw cooperates with the ball nut. One end of the ball screw is provided with a second drive motor and a second reducer connected to the power output shaft of the second drive motor. The power output shaft of the second reducer is drivingly connected to the corresponding end of the ball screw. The glass substrate thinning and etching equipment is provided with a main controller, and the main controller is provided with an angle setting module for setting the inclination angle value of the movable support plate. The angle setting module, the first drive motor, and the second drive motor are electrically connected to the main controller respectively.

[0005] In actual use, the above patent moves the nozzle to align the corresponding etching agent falling position on the etching surface of the glass substrate, and controls the inclination angle of the movable support plate to accurately control the etching thickness of the glass substrate. However, there are still corresponding disadvantages in actual use: although the above patent can accurately control the falling position of the etching liquid to etch the glass surface to be thinned by moving the nozzle, when the hydrofluoric acid etching liquid etches the glass, corrosive acid mist is easy to be generated. The acid mist is easy to float on the position where the glass surface to be thinned has been thinned to meet the standard, and further corrodes the thinned area. When using the above patent, it is not convenient to protect the thinned area of ​​the glass thinning surface that meets the standard, which is easy to affect the effect and quality of glass thinning, and has low practicality. Summary of the invention

[0006] Technical issues solved

[0007] In order to solve the problems raised in the above-mentioned background technology, the present invention provides a novel single-sided thinning method for ultra-thin glass, which has the advantages of convenient operation, protective function, good thinning effect and high practicality. Through the coordinated design of etching grooves, filtering circulation mechanisms, placement shells, protective mechanisms and other structures, the glass thinning parts that meet the standards can be covered and isolated from acid mist contact, and the glass thinning surface that meets the standards can be protected to prevent acid mist from affecting the uniformity of glass thinning, thereby improving the thinning effect and quality, and having a high practical effect.

[0008] Technical Solution

[0009] To achieve the above object, the present invention provides the following technical solution: a novel single-sided thinning method for ultra-thin glass, wherein the specific thinning method steps are as follows:

[0010] S1, attaching the non-thinned surface of the glass raw material to the substrate;

[0011] S2, performing ultrasonic cleaning on the surface of the glass to be thinned to remove dust and oil stains on the surface of the glass to be thinned;

[0012] S3, polishing the surface of the glass to be thinned to remove scratches and unevenness, so as to provide a smooth surface for the subsequent etching process;

[0013] S4, cleaning and drying the surface of the glass to be thinned;

[0014] S5, placing the glass substrate into an etching tank, first performing etching pretreatment to weaken the surface defects of the glass to be thinned, and then performing single-side thinning treatment;

[0015] S6, cleaning, drying and inspecting the thinned surface of the glass;

[0016] The operation process in step S5 of the above-mentioned thinning method needs to be completed by the etching tank corresponding processing operations, wherein:

[0017] The etching tank comprises a filtering circulation mechanism arranged on the left and right sides of the etching tank for conveying etching liquid, a placement shell fixed on the right side of the bottom surface of the inner cavity of the etching tank for placing the glass substrate, a liquid spraying shell moving laterally in the etching tank for spraying the etching liquid onto the glass surface to be thinned, and a protective mechanism arranged on the left side of the liquid spraying shell for preventing acid mist from continuously reacting and corroding the thinning part on the glass thinning surface;

[0018] The protection mechanism includes a mounting shell fixed to the left side wall of the liquid spray shell, a coating block that moves laterally at the lower right side of the inner cavity of the mounting shell, a transmission mechanism arranged in the liquid spray shell for driving the coating block to move, a coating film that vertically penetrates the inner circle of the coating block, a stop plate arranged on the left side of the coating block for cooperating with the left side wall of the placement shell to clamp and fix the lower end of the coating film, a reel that is rotatably mounted on the upper left side of the inner cavity of the mounting shell for unwinding the coating film, a moisture-absorbing roller arranged on the right side of the bottom of the coating block for cleaning acid mist and water stains at the thinning point where the glass thinning surface meets the standard, and a recovery and injection mechanism arranged on the inner cavity of the moisture-absorbing roller and the bottom surface of the inner cavity of the liquid spray shell for utilizing the cleaned acid mist and water stains;

[0019] The etching tank is generally inclined with the left side higher than the right side. An opening is provided at the lower left of the liquid spray shell. The front and rear sides of the inner cavity of the liquid spray shell are in contact with the front and rear sides of the glass thinning surface. An opening is provided at the lower left of the liquid spray shell, and the position height of the opening is higher than the position height of the glass surface to be thinned. The bottom of the opening of the liquid spray shell is in contact with the left side wall of the glass, and the bottom surface of the liquid spray shell is in contact with the upper surface of the placement shell. A first driving member is provided on the left side of the liquid spray shell. When the filtering circulation mechanism is in operation, the etching liquid in the etching tank is transported to the liquid spray shell for spraying. The pressure of the etching liquid during its flow causes the first driving member to drive the etching liquid to flow. The left side of the opening bottom of the liquid spray shell is pressed against the left side wall of the glass thinning surface, and the lower part of the coating film passes through the bottom surface of the coating block and the upper surface of the placement shell. When the coating block moves, the coating film is driven to fit the upper surface of the placement shell. The abutment plate is provided with a linkage mechanism for driving the winding drum to rotate. A groove is provided on the right side of the bottom surface of the coating block. The front and rear ends of the moisture absorption roller are rotatably connected with two connecting rods provided on the left side of the inner cavity of the groove through a rotating shaft. A second driving member for driving the moisture absorption roller to rotate is provided in the inner cavity of the groove. The moisture absorption roller consists of a roller and a moisture absorption cotton.

[0020] In the above technical scheme, preferably, the filtering circulation mechanism includes a filter box fixedly installed on the right side of the etching tank, a pump fixed on the left side of the etching tank, and a liquid inlet chamber opened on the left side of the etching tank; wherein, the bottom surface of the filter box is connected with a drain valve for controlling the discharge of waste liquid, the inner cavity of the filter box is connected with the right side of the inner cavity of the etching tank, the liquid outlet of the filter box is connected with the liquid inlet end of the pump through a connecting pipe, the liquid outlet end of the pump is connected with the inner cavity of the liquid inlet chamber, the upper right side of the inner cavity of the liquid inlet chamber is connected with a hose, and the other end of the hose is connected with the left side of the lower part of the inner cavity of the liquid spray shell.

[0021] In the above technical solution, preferably, the first driving member includes a cross bar fixedly mounted on the left side wall of the liquid spray shell, the left end of the cross bar penetrates into the inner cavity of the liquid inlet chamber, a pressure plate is fixedly mounted on the left end face of the cross bar, a first compression spring is provided on the left movable sleeve of the cross bar, and the left and right ends of the first compression spring are respectively fixedly connected to the right side wall of the pressure plate and the right side of the inner cavity of the liquid inlet chamber.

[0022] In the above technical scheme, preferably, the transmission mechanism includes a mounting groove opened on the left side of the inner cavity of the spray shell, an impeller cylinder is arranged in the inner cavity of the mounting groove, the front and rear ends of the impeller cylinder are rotatably connected with the inner cavity of the mounting groove through a fixedly installed crankshaft respectively, the outer surface of the crankshaft is vertically movablely sleeved with a sleeve, and the left side wall of the sleeve is laterally fixedly installed with a connecting rod fixedly connected to the right side wall of the coating block.

[0023] In the above technical solution, preferably, the linkage mechanism includes two sliding bars distributed front and rear on the left side wall of the coating block, two racks distributed front and rear on the upper part of the left side wall of the support plate, gears symmetrically fixedly installed on the front and rear rotating shafts of the winding drum, and a second compression spring movably sleeved on the outer surface of the sliding bar; wherein, the support plate is slidably connected to the two sliding bars, and the gears are meshed with the racks.

[0024] In the above technical solution, preferably, the second driving member includes docking wheels symmetrically and fixedly mounted on the front and rear ends of the moisture-absorbing roller and a docking rod laterally arranged above the docking wheels; wherein the top of the outer ring of the docking wheel is movably connected to the bottom surface of the docking rod, and the right end of the docking rod is fixedly connected to the right side of the inner cavity of the mounting shell.

[0025] In the above technical solution, preferably, an assembly groove is opened on the left side of the bottom surface of the coating block, and two squeezing rollers are symmetrically rotatably installed in the inner cavity of the assembly groove, and the bottom of the squeezing rollers is movably connected to the surface of the coating.

[0026] In the above technical solution, preferably, the recovery injection mechanism includes a liquid collecting cylinder disposed in the inner cavity of the moisture absorption roller, through holes circumferentially and equidistantly formed on the outer surface of the roller of the moisture absorption roller, three fitting rollers movably mounted above the moisture absorption roller through bearings, two conveying pipes symmetrically disposed on the front and rear sides of the moisture absorption roller, the conveying pipes are in a "C" shape, and a bubble generating pipe fixedly mounted on the bottom of the inner cavity of the liquid spraying shell; wherein, jet holes are circumferentially and equidistantly formed on the outer surface of the bubble generating pipe, the bottom of the fitting roller is in extrusion fit with the moisture absorption cotton of the moisture absorption roller, the front and rear sides of the liquid collecting cylinder are respectively communicated with the inner cavities of the two conveying pipes through rotating shafts, a first check valve for guiding the collected acid mist water droplets into the conveying pipe is disposed in the rotating shaft inner cavity of the liquid collecting cylinder, a second check valve for guiding the recovered acid mist water droplets into the bubble generating pipe is disposed on the left side of the rotating shaft of the liquid collecting cylinder in the inner cavity of the conveying pipe, and a sealing rod is slidably connected in the inner cavity of the conveying pipe on the right side of the first check valve, the right end of the sealing rod is fixedly connected with the right side of the inner cavity of the mounting shell, a docking channel communicating with the inner cavity of the bubble generating pipe is formed on the left side of the bottom surface of the inner cavity of the liquid spraying shell, and the outer surface of the lower liquid outlet port of the conveying pipe is in sealed sliding connection with the inner cavity of the docking channel.

[0027] Beneficial effects

[0028] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0029] 1. Through the cooperative design of structures such as an etching tank, a filtering and circulating mechanism, a placement shell, and a protection mechanism, when the glass thinning surface at the contact of the liquid spraying shell thins to the same height as the upper surface of the placement shell, the pressure during the flow of the etching liquid can continue to drive the liquid spraying shell to move through the first driving member. When the liquid spraying shell sprays the etching liquid, the liquid flow can drive the transmission mechanism to operate, the transmission mechanism can drive the film covering block to reciprocate, and when the film covering block moves, it can drive the moisture absorption roller to rotate through the second driving member. When the moisture absorption roller rotates, it can clean the acid mist water stains, reduce the corrosion damage of the acid mist to the qualified glass thinning surface, and at the same time, when the film covering block moves, the bottom surface thereof can extrude the part of the sticking film located between the bottom of the film covering block and the upper surface of the placement shell, enabling the sticking film to fit on the upper surface of the placement shell to cover and isolate the qualified glass thinning surface from acid mist contact, fully exhausting the air between the sticking film and the upper surface of the placement shell, protecting the qualified glass thinning surface, avoiding the influence of acid mist on the uniformity of glass thinning, improving the thinning effect and quality, and having high practicability. It solves the problems in the prior art that it is not convenient to protect the qualified glass thinning surface, easily affects the thinning effect and quality of the glass, and has low practicability.

[0030] 2. The present invention adopts the coordinated design of structures such as the coating block, the moisture absorbing roller, the liquid spray shell, and the recovery and injection mechanism. When the coating block reciprocates and drives the moisture absorbing roller to move and rotate to clean the acid mist water stains, the acid mist liquid adsorbed by the moisture absorbing roller falls into the inner cavity of the liquid collecting cylinder through the through hole under the squeezing of the bonding roller. At the same time, the moisture absorbing roller can drive the liquid collecting cylinder to move when it moves and rotates, and the liquid collecting cylinder drives the conveying pipe to move when it moves. When the conveying pipe moves, the acid mist liquid recovered in the liquid collecting cylinder can be transported to the liquid spray shell for spraying under the action of the first check valve, the second check valve and the sealing rod, thereby improving the resource utilization rate and delaying the speed of corrosive attenuation of the etching solution during the cyclic etching process. At the same time, the acid mist liquid can be transported to the liquid spray shell mixed with air for spraying, and the air can form bubbles to clean the impurities generated on the thinning surface, without the need to use a bubbling device to generate bubbles to clean the impurities on the thinning surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the structure of the present invention;

[0032] Figure 2 It is a schematic diagram of a partial front cross-sectional structure of an etching groove of the present invention;

[0033] Figure 3 It is a schematic diagram of the front cross-sectional structure of the basic parts of the liquid spray shell, the protection mechanism, the placement shell, and the glass of the present invention;

[0034] Figure 4 for Figure 3 An enlarged schematic diagram of part A is shown;

[0035] Figure 5 It is a partial cross-sectional structural schematic diagram of the liquid spray shell, the mounting shell, the film coating block, and the transmission mechanism of the present invention;

[0036] Figure 6 It is a partial bottom view structural diagram of the film coating block and moisture absorption roller of the present invention;

[0037] Figure 7 for Figure 6 An enlarged schematic diagram of portion B is shown;

[0038] Figure 8 It is a partial structural exploded schematic diagram of the moisture absorption roller, laminating roller, liquid collecting cylinder, bubbling tube, sealing rod and conveying tube of the present invention;

[0039] Fig. 9 It is a front cross-sectional structural schematic diagram of the delivery pipe of the present invention.

[0040] In the figure: 1. etching groove; 2. transmission mechanism; 21. impeller cylinder; 22. crankshaft; 23. casing; 24. connecting rod; 3. filtering circulation mechanism; 31. filtering box; 32. pump; 33. liquid inlet chamber; 4. placing shell; 5. liquid spraying shell; 6. protection mechanism; 61. mounting shell; 62. coating block; 63. coating; 64. abutment plate; 65. winding drum; 66. moisture absorption roller; 7. recovery injection mechanism; 71. liquid collecting cylinder; 72. through hole; 73. laminating roller; 74. conveying pipe; 75. bubbling pipe; 76. sealing rod; 8. first driving member; 9. linkage mechanism; 91. rack; 92. gear; 93. second compression spring; 10. second driving member; 101. docking wheel; 102. docking rod. DETAILED DESCRIPTION

[0041] 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.

[0042] like Figures 1 to 9 As shown, the present invention provides a novel single-sided thinning method for ultra-thin glass, and the specific thinning method steps are as follows:

[0043] S1, attaching the non-thinned surface of the glass raw material to the substrate;

[0044] S2, performing ultrasonic cleaning on the surface of the glass to be thinned to remove dust and oil stains on the surface of the glass to be thinned;

[0045] S3, polishing the surface of the glass to be thinned to remove scratches and unevenness, so as to provide a smooth surface for the subsequent etching process;

[0046] S4, cleaning and drying the surface of the glass to be thinned;

[0047] S5, placing the glass substrate into the etching tank 1, first performing etching pretreatment to weaken the surface defects of the glass to be thinned, and then performing single-sided thinning treatment; wherein, during the etching pretreatment, hydrochloric acid and hydrofluoric acid are mixed, and a proper amount of water is added to dilute, and then polyethylene glycol 6000 and polydimethylsiloxane are added, and finally the water volume is supplemented and stirred evenly, the soaking time is 30-40 minutes, and the etching removal thickness is 20-45 μm. This pretreatment liquid can significantly reduce the pits on the surface of the substrate after the etching process, reduce the time of the subsequent grinding process, and reduce the difficulty of waste liquid treatment and pollution emissions;

[0048] S6, cleaning, drying and inspecting the thinned surface of the glass;

[0049] The operation process in step S5 of the above-mentioned thinning method needs to be completed by the etching tank 1. In which:

[0050] The etching tank 1 comprises a filtering circulation mechanism 3 arranged on the left and right sides of the etching tank 1 for conveying etching liquid, a placement shell 4 fixed on the right side of the bottom surface of the inner cavity of the etching tank 1 for placing a glass substrate, a liquid spraying shell 5 which moves laterally in the etching tank 1 and is used to spray the etching liquid onto the glass surface to be thinned, and a protective mechanism 6 arranged on the left side of the liquid spraying shell 5 for preventing acid mist from continuously reacting and corroding the thinning part on the glass thinning surface that meets the standard;

[0051] The protection mechanism 6 includes a mounting shell 61 fixed to the left side wall of the liquid spraying shell 5, a coating block 62 which moves laterally at the lower right part of the inner cavity of the mounting shell 61, a transmission mechanism 2 arranged in the liquid spraying shell 5 for driving the coating block 62 to move, a coating 63 which vertically penetrates the inner circle of the coating block 62, a stop plate 64 arranged on the left side of the coating block 62 for clamping and fixing the lower end of the coating 63 in cooperation with the left side wall of the placing shell 4, a reel 65 which is installed on the upper left side of the inner cavity of the mounting shell 61 through a rotating shaft for unwinding the coating 63, a moisture absorption roller 66 arranged on the right side of the bottom of the coating block 62 for cleaning the acid mist water stains at the thinning surface of the glass that meets the standard, and a recovery and injection mechanism 7 arranged on the inner cavity of the moisture absorption roller 66 and the bottom surface of the inner cavity of the liquid spraying shell 5 for utilizing the cleaned acid mist water stains;

[0052] Among them, the etching tank 1 is generally inclined with the left side higher and the right side lower. An opening is provided at the lower left of the liquid spray shell 5. The front and rear sides of the inner cavity of the liquid spray shell 5 are in contact with the front and rear sides of the glass thinning surface. An opening is provided at the lower left of the liquid spray shell 5, and the position height of the opening is higher than the position height of the glass surface to be thinned. The bottom of the opening of the liquid spray shell 5 is in contact with the left side wall of the glass, and the bottom surface of the liquid spray shell 5 is in contact with the upper surface of the placement shell 4. A first driving member 8 is provided on the left side of the liquid spray shell 5. When the filtering circulation mechanism 3 is in operation, the etching liquid in the etching tank 1 is transported to the liquid spray shell 5 for spraying. The pressure of the etching liquid during flow causes the first driving member 8 to drive the left side of the bottom of the opening of the liquid spray shell 5 to press against the left side wall of the glass thinning surface, and the lower part of the coating 63 is attached. The coating block 62 passes through the bottom surface of the coating block 62 and the upper surface of the placement shell 4. When the coating block 62 moves, it drives the coating film 63 to fit with the upper surface of the placement shell 4. A linkage mechanism 9 for driving the winding drum 65 to rotate is arranged on the abutment plate 64. A groove is provided on the right side of the bottom surface of the coating block 62. The front and rear ends of the moisture absorption roller 66 are rotatably connected with two connecting rods arranged on the left side of the inner cavity of the groove through a rotating shaft. A second driving member 10 for driving the moisture absorption roller 66 to rotate is arranged in the inner cavity of the groove. The moisture absorption roller 66 is composed of a roller and a moisture absorption cotton. An assembly groove is provided on the left side of the bottom surface of the coating block 62. Two squeezing rollers are symmetrically installed in the inner cavity of the assembly groove for rotation. The bottom of the squeezing roller is movably connected to the surface of the coating film 63.

[0053] When in use, the lower end of the coating 63 is clamped and fixed with the side wall of the placement shell 4 through the abutment plate 64. When the filtering circulation mechanism 3 is in operation, the etching liquid is transported to the liquid spraying shell 5 for spraying. At the same time, the pressure of the etching liquid flowing causes the first driving member 8 to drive the left side of the opening bottom of the liquid spraying shell 5 to press against the left side wall of the glass thinning surface. When the glass thinning surface at the contact point of the liquid spraying shell 5 is thinned to the same height as the upper surface of the placement shell 4, the pressure of the etching liquid flowing can continue to drive the liquid spraying shell 5 to move through the first driving member 8. When the liquid spraying shell 5 sprays the etching liquid, the liquid flow can drive the transmission mechanism 2 to operate, and the transmission mechanism 2 can drive the coating block 62 to move back and forth. When the hygroscopic roller 66 is rotated, the second driving member 10 can be used to drive the hygroscopic roller 66 to rotate. When the hygroscopic roller 66 rotates, the acid mist and water stains can be cleaned to reduce the corrosion damage of the acid mist to the glass thinning surface. At the same time, when the coating block 62 moves, its bottom surface can squeeze the portion of the coating 63 between the bottom of the coating block 62 and the upper surface of the placement shell 4, so that the coating 63 can be attached to the upper surface of the placement shell 4 to cover the glass thinning area to isolate it from the acid mist contact, and the air between the coating 63 and the upper surface of the placement shell 4 can be fully discharged, so as to protect the glass thinning surface and the thinning area to avoid the acid mist affecting the uniformity of glass thinning, thereby improving the thinning effect and quality, and having high practicality.

[0054] It should be noted that when the moisture-absorbing roller 66 rotates to clean the acid mist and water stains, the coating block 62 can drive the recovery and injection mechanism 7 to operate during its movement, so as to collect the acid mist liquid adsorbed on the moisture-absorbing roller 66 and transport the acid mist liquid to the liquid spray shell 5 for spraying, thereby improving resource utilization and slowing down the rate at which the corrosiveness of the etching liquid decays during the cyclic etching process. At the same time, the acid mist liquid can be mixed with air and transported to the liquid spray shell 5 for spraying, and the air can form bubbles to clean the impurities generated on the thinning surface, without the need to use a bubbling device to generate bubbles to clean the impurities on the thinning surface.

[0055] like Figure 2 As shown, the filtering circulation mechanism 3 includes a filter box 31 fixedly installed on the right side of the etching tank 1, a pump 32 fixed on the left side of the etching tank 1, and a liquid inlet chamber 33 opened on the left side of the etching tank 1; wherein, the bottom surface of the filter box 31 is connected with a drain valve for controlling the discharge of waste liquid, the inner cavity of the filter box 31 is connected with the right side of the inner cavity of the etching tank 1, the liquid outlet of the filter box 31 is connected with the liquid inlet end of the pump 32 through a connecting pipe, the liquid outlet end of the pump 32 is connected with the inner cavity of the liquid inlet chamber 33, the upper right side of the inner cavity of the liquid inlet chamber 33 is connected with a hose, and the other end of the hose is connected with the left side of the lower inner cavity of the liquid spray shell 5.

[0056] When in use, the etching liquid in the etching tank 1 flows into the filter box 31 and impurities are filtered out. The pump 32 transports the etching liquid after impurities are removed from the filter box 31 to the liquid inlet chamber 33. Then the etching liquid flows into the spray shell 5 through the hose and is sprayed onto the glass thinning surface. The etching liquid can be circulated and filtered for use.

[0057] like Figure 2 As shown, the first driving member 8 includes a cross bar fixedly mounted on the left side wall of the liquid spray shell 5, the left end of the cross bar penetrates into the inner cavity of the liquid inlet chamber 33, a pressure plate is fixedly mounted on the left end face of the cross bar, and a first compression spring is provided on the left movable sleeve of the cross bar, and the left and right ends of the first compression spring are fixedly connected to the right side wall of the pressure plate and the right side of the inner cavity of the liquid inlet chamber 33 respectively.

[0058] When in use, the pressure generated by the flow of etching liquid in the liquid inlet chamber 33 can push the pressure plate to move to the right, so that the pressure plate can drive the liquid spray shell 5 to move through the cross bar, so that the left side of the opening bottom of the liquid spray shell 5 is pressed against the left side wall of the glass thinning surface. When the glass thinning surface at the contact point of the liquid spray shell 5 is thinned to the same height as the upper surface of the placement shell 4, the pressure of the etching liquid flow can continue to drive the liquid spray shell 5 to move through the first driving member 8.

[0059] like Figure 5 As shown, the transmission mechanism 2 includes a mounting groove opened on the left side of the inner cavity of the spray shell 5, and an impeller cylinder 21 is arranged in the inner cavity of the mounting groove. The front and rear ends of the impeller cylinder 21 are rotatably connected with the inner cavity of the mounting groove through a fixedly installed crankshaft 22 respectively, and the outer surface of the crankshaft 22 is vertically movably sleeved with a sleeve shell 23, and the left side wall of the sleeve shell 23 is laterally fixedly installed with a connecting rod 24 fixedly connected to the right side wall of the coating block 62.

[0060] When in use, when the liquid spray shell 5 sprays etching liquid, the liquid flow pressure can drive the impeller cylinder 21 to rotate. When the impeller cylinder 21 rotates, it can drive the connecting rod 24 to move back and forth through the crankshaft 22 and the casing 23, so that the connecting rod 24 can drive the coating block 62 to move back and forth.

[0061] like Figure 4 As shown, the linkage mechanism 9 includes two sliding rods distributed front and rear on the left side wall of the coating block 62, two racks 91 distributed front and rear on the upper part of the left side wall of the back plate 64, a gear 92 symmetrically fixedly mounted on the front and rear rotating shafts of the winding drum 65, and a second compression spring 93 movably sleeved on the outer surface of the sliding rod; wherein the back plate 64 is slidably connected to the two sliding rods, and the gear 92 is meshed with the rack 91.

[0062] During use, when the liquid spraying shell 5 moves to the right, it drives the second compression spring 93 to squeeze the abutting plate 64, which can improve the clamping and fixing effect of the abutting plate 64 on the laminating film 63. At the same time, when the liquid spraying shell 5 moves, it drives the installation shell 61 to move. The installation shell 61 drives the winding drum 65 to drive the gear 92 to move. Under the interaction of the gear 92 and the rack 91, the winding drum 65 can rotate while moving, which can release the laminating film 63, increase the length of the laminating film 63, and make the laminating film 63 loose to avoid being taut, so as to better achieve the effect of fitting, covering and isolating acid mist.

[0063] As Figure 7 shown, the second driving member 10 includes docking wheels 101 symmetrically and fixedly sleeved on the front and rear ends of the moisture absorption roller 66 and a docking rod 102 horizontally arranged above the docking wheels 101. Among them, the top of the outer ring of the docking wheel 101 is movably connected to the bottom surface of the docking rod 102, and the right end of the docking rod 102 is fixedly connected to the right side of the inner cavity of the installation shell 61.

[0064] During use, when the laminating block 62 reciprocates, it drives the moisture absorption roller 66 to drive the docking wheels 101 to reciprocate. When the top surface of the docking wheel 101 contacts the bottom surface of the docking rod 102 during the movement, the docking wheel 101 can rotate itself, so that the docking wheel 101 can drive the moisture absorption roller 66 to rotate.

[0065] As Figure 7 、 Figure 8 and Fig. 9 shown, the recovery and injection mechanism 7 includes a liquid collecting cylinder 71 arranged in the inner cavity of the moisture absorption roller 66, through holes 72 circumferentially and equidistantly opened on the outer surface of the roller of the moisture absorption roller 66, three fitting rollers 73 movably installed above the moisture absorption roller 66 through bearings, two conveying pipes 74 symmetrically arranged on the front and rear sides of the moisture absorption roller 66. The conveying pipes 74 are in a "C" shape, and a foaming pipe 75 fixedly installed at the bottom of the inner cavity of the liquid spraying shell 5. Among them, jet holes are circumferentially and equidistantly opened on the outer surface of the foaming pipe 75. The bottom of the fitting roller 73 is in extrusion fit with the moisture absorption cotton of the moisture absorption roller 66. The front and rear sides of the liquid collecting cylinder 71 are respectively communicated with the inner cavities of the two conveying pipes 74 through rotating shafts. A first check valve for guiding the collected acid mist water droplets into the conveying pipe 74 is arranged in the rotating shaft inner cavity of the liquid collecting cylinder 71. A second check valve for guiding the recovered acid mist water droplets into the foaming pipe 75 is arranged on the left side of the rotating shaft of the liquid collecting cylinder 71 in the inner cavity of the conveying pipe 74. And a sealing rod 76 is slidably connected on the right side of the first check valve in the inner cavity of the conveying pipe 74. The right end of the sealing rod 76 is fixedly connected to the right side of the inner cavity of the installation shell 61. A docking channel communicating with the inner cavity of the foaming pipe 75 is opened on the left side of the bottom surface of the inner cavity of the liquid spraying shell 5. The outer surface of the lower liquid outlet port of the conveying pipe 74 is in sealed sliding connection with the inner cavity of the docking channel.

[0066] When in use, the coating block 62 drives the wicking roller 66 to move and rotate during the reciprocating movement to clean the acid mist water stains. The acid mist liquid adsorbed by the wicking roller 66 falls into the inner cavity of the liquid collecting cylinder 71 through the through hole 72 under the squeezing of the bonding roller 73. At the same time, the wicking roller 66 can drive the liquid collecting cylinder 71 to move when it moves and rotates, and the liquid collecting cylinder 71 drives the delivery pipe 74 to move when it moves. When the delivery pipe 74 moves, the acid mist liquid recovered in the liquid collecting cylinder 71 can be transported to the liquid spray shell 5 for spraying under the action of the first check valve, the second check valve and the sealing rod 76, thereby improving the resource utilization rate and delaying the speed of corrosive attenuation of the etching liquid during the cyclic etching process. At the same time, the acid mist liquid can be transported to the liquid spray shell 5 mixed with air for spraying, and the air can form bubbles to clean the impurities generated on the thinning surface.

[0067] The working principle and use process of the present invention:

[0068] When in use, firstly, the lower end of the pasting film 63 is clamped and fixed with the side wall of the placement shell 4 through the abutment plate 64, and the pump 32 delivers the etching liquid into the liquid inlet chamber 33. The pressure generated by the flow of the etching liquid in the liquid inlet chamber 33 can push the pressure plate to move to the right, so that the pressure plate can drive the liquid spray shell 5 to move through the cross bar, so that the left side of the opening bottom of the liquid spray shell 5 is pressed against the left side wall of the glass thinning surface, and then the etching liquid flows into the liquid spray shell 5 through the hose and is sprayed onto the glass thinning surface. When the glass thinning surface at the contact point of the liquid spray shell 5 is thinned to the same height as the upper surface of the placement shell 4, the etching liquid The pressure during the flow can continue to drive the liquid spray shell 5 to move through the first driving member 8. When the liquid spray shell 5 sprays the etching liquid, the liquid flow pressure can drive the impeller cylinder 21 to rotate. When the impeller cylinder 21 rotates, it can drive the connecting rod 24 to move back and forth through the crankshaft 22 and the casing 23, so that the connecting rod 24 can drive the coating block 62 to move back and forth. When the coating block 62 moves back and forth, it drives the moisture absorption roller 66 to drive the docking wheel 101 to move back and forth. When the top surface of the docking wheel 101 contacts the bottom surface of the docking rod 102 during the movement, the docking wheel 101 can rotate, so that the docking wheel 101 The hygroscopic roller 66 can be driven to rotate, and the hygroscopic roller 66 can clean the acid mist water stains when rotating, thereby reducing the corrosion damage of the acid mist to the glass thinning surface. At the same time, when the coating block 62 moves, its bottom surface can squeeze the part of the pasting film 63 between the bottom of the coating block 62 and the upper surface of the placement shell 4, so that the pasting film 63 can be attached to the upper surface of the placement shell 4 to cover the glass thinning surface to isolate the acid mist from contact. In addition, when the coating block 62 reciprocates and drives the hygroscopic roller 66 to move and rotate to clean the acid mist water stains, the acid mist liquid absorbed by the hygroscopic roller 66 passes through the laminating roller 73 under the squeezing of the laminating roller 73. The through hole 72 falls into the inner cavity of the liquid collecting cylinder 71. At the same time, the moisture absorbing roller 66 can drive the liquid collecting cylinder 71 to move when it moves and rotates. When the liquid collecting cylinder 71 moves, it drives the delivery pipe 74 to move. When the delivery pipe 74 moves, under the action of the first check valve, the second check valve and the sealing rod 76, the acid mist liquid recovered in the liquid collecting cylinder 71 can be transported to the liquid spray shell 5 for spraying, thereby improving resource utilization and delaying the speed of corrosive attenuation of the etching liquid during the cyclic etching process. At the same time, the acid mist liquid can be mixed with air and transported to the liquid spray shell 5 for spraying, and the air can form bubbles to clean up impurities generated on the thinning surface.

[0069] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0070] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel method for thinning one side of ultra-thin glass, characterized in that: The specific thinning method steps are as follows: S1, attaching the non-thinned surface of the glass raw material to the substrate; S2, performing ultrasonic cleaning on the surface of the glass to be thinned to remove dust and oil stains on the surface of the glass to be thinned; S3, polishing the surface of the glass to be thinned to remove scratches and unevenness, so as to provide a smooth surface for the subsequent etching process; S4, cleaning and drying the surface of the glass to be thinned; S5, placing the glass substrate into the etching tank (1), first performing etching pretreatment to weaken the surface defects of the glass to be thinned, and then performing single-side thinning treatment; S6, cleaning, drying and inspecting the thinned surface of the glass; The operation process in step S5 of the above-mentioned thinning method needs to be completed by the etching tank (1) with corresponding processing operations, wherein: The etching tank (1) comprises a filtering circulation mechanism (3) arranged on the left and right sides of the etching tank (1) for conveying etching liquid, a placement shell (4) fixed on the right side of the bottom surface of the inner cavity of the etching tank (1) for placing a glass substrate, a liquid spraying shell (5) moving laterally in the etching tank (1) for spraying etching liquid onto the glass surface to be thinned, and a protection mechanism (6) arranged on the left side of the liquid spraying shell (5) for preventing acid mist from continuously reacting and corroding the thinning target portion on the glass thinning surface; The protection mechanism (6) comprises a mounting shell (61) fixed to the left side wall of the liquid spraying shell (5), a coating block (62) which moves laterally at the lower right side of the inner cavity of the mounting shell (61), a transmission mechanism (2) arranged in the liquid spraying shell (5) for driving the coating block (62) to move, a coating film (63) which vertically penetrates the inner circle of the coating block (62), and a coating film (63) which is arranged on the left side of the coating block (62) and is used to cooperate with the left side wall of the placement shell (4) to align the coating film (63). ) is clamped and fixed at the lower end thereof, a reel (65) is rotatably mounted on the upper left side of the inner cavity of the mounting shell (61) through a rotating shaft and used for unwinding the coating film (63), a moisture absorbing roller (66) is arranged on the right side of the bottom of the coating block (62) and used for cleaning the acid mist and water stains at the thinning surface of the glass that has reached the standard, and a recovery and injection mechanism (7) is arranged in the inner cavity of the moisture absorbing roller (66) and the bottom surface of the inner cavity of the liquid spraying shell (5) and used for recycling the cleaned acid mist and water stains; The etching tank (1) is generally inclined with the left side higher than the right side. An opening is provided at the lower left of the liquid spray shell (5). The front and rear sides of the inner cavity of the liquid spray shell (5) are in contact with the front and rear sides of the glass thinning surface. An opening is provided at the lower left of the liquid spray shell (5), and the height of the opening is higher than the height of the glass surface to be thinned. The bottom of the opening of the liquid spray shell (5) is in contact with the left side wall of the glass. The bottom surface of the liquid spray shell (5) is in contact with the upper surface of the placement shell (4). A first driving member (8) is provided on the left side of the liquid spray shell (5). When the filtering circulation mechanism (3) is in operation, the etching liquid in the etching tank (1) is transported to the liquid spray shell (5) for spraying. The pressure of the etching liquid during its flow causes the first driving member (8) to drive the liquid spray shell (5). The left side of the opening bottom is pressed against the left side wall of the glass thinning surface, the lower part of the pasting film (63) passes through the bottom surface of the pasting film block (62) and the upper surface of the placement shell (4), and the pasting film (63) is driven to fit with the upper surface of the placement shell (4) when the pasting film block (62) moves. The abutment plate (64) is provided with a linkage mechanism (9) for driving the winding drum (65) to rotate. The right side of the bottom surface of the pasting film block (62) is provided with a groove. The front and rear ends of the moisture absorption roller (66) are rotatably connected to two connecting rods provided on the left side of the inner cavity of the groove through a rotating shaft. The inner cavity of the groove is provided with a second driving member (10) for driving the moisture absorption roller (66) to rotate. The moisture absorption roller (66) is composed of a roller and moisture absorption cotton.

2. A novel single-sided thinning method for ultra-thin glass according to claim 1, characterized in that: The filtering circulation mechanism (3) comprises a filter box (31) fixedly mounted on the right side of the etching tank (1), a pump (32) fixed on the left side of the etching tank (1), and a liquid inlet chamber (33) opened on the left side of the etching tank (1); wherein the bottom surface of the filter box (31) is connected to a drain valve for controlling the discharge of waste liquid, the inner cavity of the filter box (31) is connected to the right side of the inner cavity of the etching tank (1), the liquid outlet of the filter box (31) is connected to the liquid inlet end of the pump (32) through a connecting pipe, the liquid outlet end of the pump (32) is connected to the inner cavity of the liquid inlet chamber (33), the upper right side of the inner cavity of the liquid inlet chamber (33) is connected to a hose, and the other end of the hose is connected to the left side of the lower inner cavity of the liquid spray shell (5).

3. A novel single-sided thinning method for ultra-thin glass according to claim 2, characterized in that: The first driving member (8) comprises a cross bar fixedly mounted on the left side wall of the liquid spray shell (5), the left end of the cross bar extending into the inner cavity of the liquid inlet cavity (33), a pressure plate fixedly mounted on the left end face of the cross bar, a first compression spring being arranged on the left movable sleeve of the cross bar, the left and right ends of the first compression spring being fixedly connected to the right side wall of the pressure plate and the right side of the inner cavity of the liquid inlet cavity (33) respectively.

4. A novel single-sided thinning method for ultra-thin glass according to claim 1, characterized in that: The transmission mechanism (2) comprises a mounting groove provided on the left side of the inner cavity of the liquid spray shell (5), an impeller cylinder (21) being arranged in the inner cavity of the mounting groove, the front and rear ends of the impeller cylinder (21) being rotatably connected to the inner cavity of the mounting groove respectively through a fixedly mounted crankshaft (22), a sleeve shell (23) being vertically movablely sleeved on the outer surface of the crankshaft (22), a connecting rod (24) being fixedly mounted on the left side wall of the sleeve shell (23) and being fixedly connected to the right side wall of the coating block (62) in a transverse manner.

5. The novel single-sided thinning method for ultra-thin glass according to claim 1, characterized in that: The linkage mechanism (9) includes two sliding rods distributed front and rear on the left side wall of the coating block (62), two racks (91) distributed front and rear on the upper part of the left side wall of the support plate (64), a gear (92) symmetrically fixedly mounted on the front and rear rotating shafts of the winding drum (65), and a second compression spring (93) movably sleeved on the outer surface of the sliding rod; wherein the support plate (64) is slidably connected to the two sliding rods, and the gear (92) is meshed with the rack (91).

6. A novel single-sided thinning method for ultra-thin glass according to claim 1, characterized in that: The second driving member (10) comprises a docking wheel (101) symmetrically and fixedly mounted on the front and rear ends of the moisture absorbing roller (66) and a docking rod (102) laterally arranged above the docking wheel (101); wherein the top of the outer ring of the docking wheel (101) is movably connected to the bottom surface of the docking rod (102), and the right end of the docking rod (102) is fixedly connected to the right side of the inner cavity of the mounting shell (61).

7. A novel single-sided thinning method for ultra-thin glass according to claim 1, characterized in that: The left side of the bottom surface of the coating block (62) is provided with an assembly groove, and two squeezing rollers are symmetrically rotatably mounted in the inner cavity of the assembly groove, and the bottom of the squeezing rollers is movably connected to the surface of the coating (63).

8. The novel single-sided thinning method for ultra-thin glass according to claim 1, characterized in that: The recycling and injection mechanism (7) includes a liquid collecting cylinder (71) disposed in the inner cavity of the moisture absorption roller (66), through holes (72) circumferentially and equidistantly formed on the outer surface of the roller of the moisture absorption roller (66), three fitting rollers (73) movably mounted above the moisture absorption roller (66) through bearings, two conveying pipes (74) symmetrically disposed on the front and rear sides of the moisture absorption roller (66), the conveying pipes (74) being in an "L" shape, and a bubbling pipe (75) fixedly mounted on the bottom of the inner cavity of the liquid spraying shell (5); wherein, jet holes are circumferentially and equidistantly formed on the outer surface of the bubbling pipe (75), the bottom of the fitting roller (73) is in extrusion fit with the moisture absorption cotton of the moisture absorption roller (66), the front and rear sides of the liquid collecting cylinder (71) are respectively communicated with the inner cavities of the two conveying pipes (74) through rotating shafts, a first check valve for guiding the collected acid mist water droplets into the conveying pipe (74) is disposed in the inner cavity of the rotating shaft of the liquid collecting cylinder (71), a second check valve for guiding the recycled acid mist water droplets into the bubbling pipe (75) is disposed on the left side of the rotating shaft of the liquid collecting cylinder (71) in the inner cavity of the conveying pipe (74), and a sealing rod (76) is slidably connected in the inner cavity of the conveying pipe (74) on the right side of the first check valve, the right end of the sealing rod (76) is fixedly connected with the right side of the inner cavity of the mounting shell (61), a docking channel communicating with the inner cavity of the bubbling pipe (75) is formed on the left side of the bottom surface of the inner cavity of the liquid spraying shell (5), and the outer surface of the lower liquid outlet port of the conveying pipe (74) is in sealed sliding connection with the inner cavity of the docking channel.

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