Ultra-thin substrate glass edge processing equipment and operation method thereof

Abstract

The invention discloses an ultra-thin substrate glass edge processing device and an operation method thereof, comprising a first glass coating machine, a glass cutting and flipping mechanism, a second glass coating machine, an etching pool, an edge light detector, an ultraviolet film stripping mechanism and a conveying device for transmitting the substrate glass to be processed, which are arranged in sequence. The two corresponding inner walls of the etching pool are provided with edge grinding and wiping structures. The invention enables the grinding wheel to grind the edge of the substrate glass to be processed more fully, and the friction wheel presses the coating of the upper and lower surfaces of the substrate glass to be processed that do not need to be polished, thereby improving the stability of the single-piece glass. The smooth surfaces of the grinding wheel and the friction wheel contact each other, thereby avoiding the accumulation of debris polished by the grinding wheel in the gap and cooling and shaping, so that the friction wheel wipes the upper and lower edges polished by the grinding wheel more thoroughly and smoothly, greatly improving the edge processing efficiency of the single-piece ultra-thin substrate glass. The structure is exquisite and efficient, with a high degree of automation, and is suitable for popularization and use.

Description

Technical Field

[0001] The invention relates to the technical field of substrate glass production, and in particular to an ultra-thin substrate glass edge processing device and an operating method thereof. Background Art

[0002] With the continuous development of intelligence, glass has become one of the important structural parts in the structural design of intelligent whole machines. With the rapid development of the global LCD panel industry today, in order to go further in the LCD panel display industry, the glass products of many companies are gradually becoming high-definition, lightweight and ultra-thin. Therefore, it is crucial to improve the quality of products.

[0003] The existing ultra-thin substrate glass mostly uses edge grinding technology when processing the edges, but as TFT substrate glass becomes increasingly ultra-thin, edge grinding can no longer meet the demand. Alternatively, multiple pieces of glass are stacked together using UV glue, and then the large pieces of glass are cut into small pieces, which are then ground with a diamond grinding wheel and finally soaked in an etching solution to etch out the arc of the edge end face.

[0004] However, whether grinding the edges directly or stacking multiple pieces of glass and then etching them, and then slicing the glass, it is difficult to grind or etch a single piece of glass because it is too thin and unstable. In order to ensure the safety of the single piece of glass, multiple pieces of glass are often stacked to increase stability before grinding or etching. However, the operation is cumbersome and the efficiency is low. In addition, the glass is easily damaged during slicing, making it difficult to improve the production yield. At the same time, the quality of the polished edges of the above two methods still has room for improvement, and the arc ends are prone to roughness. Summary of the invention

[0005] The object of the present invention is to provide an ultra-thin substrate glass edge processing device and an operating method thereof to solve the problems raised in the above background technology.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] An ultra-thin substrate glass edge processing device comprises a first glass laminating machine, a glass cutting and flipping mechanism, a second glass laminating machine, an etching pool, an edge light detector, an ultraviolet film stripping mechanism and a conveying device for transmitting the substrate glass to be processed, wherein the two corresponding inner side walls of the etching pool are provided with edge grinding and wiping structures;

[0008] The edge grinding and wiping structure includes a connecting plate fixedly connected to the inner side wall of the etching pool, a power assembly is arranged on the top of the connecting plate, the connecting plate is fixedly connected to a U-shaped groove block through a telescopic spring toward the middle of the side wall of the conveying device, the side wall of the connecting plate is located below the telescopic spring and is fixedly connected to a limiting plate, the bottom surface of the U-shaped groove block is fixedly connected to a U-shaped bottom groove block, the limiting plate is slidably connected in the U-shaped bottom groove block, the end of the U-shaped groove block is rotatably connected to a central rotating shaft, the central rotating shaft is located inside the U-shaped groove block and is sleeved with a grinding wheel, the two ends of the central rotating shaft located outside the U-shaped groove block are sleeved with a second bevel gear, and the side walls of the connecting plate are located on the upper and lower sides of the telescopic spring and are symmetrically provided with wiping assemblies;

[0009] The wiping assembly includes a rotating guide tube rotatably connected to the side wall of the connecting plate, the rotating guide tube is slidably connected to a rotating shaft toward the end of the conveying device, the rotating shaft is sleeved with a first bevel gear near the second bevel gear, the first bevel gear and the second bevel gear are meshed, and the rotating shaft is provided with a radial convex block between the rotating guide tube and the first bevel gear for keeping the rotating shaft and the rotating guide tube rotating synchronously, and the end of the rotating shaft away from the rotating guide tube is sleeved with a friction wheel, the lowermost end of the outer arc side wall of the friction wheel above the grinding wheel and the horizontal top surface of the arc-shaped concave side wall of the grinding wheel are on the same horizontal plane, the side wall of the friction wheel above the grinding wheel close to the grinding wheel is in contact with the vertical arc side wall of the grinding wheel, the side wall in contact with the grinding wheel is set as a smooth surface, and the vertical arc side wall of the grinding wheel is set as a smooth surface.

[0010] Preferably, the conveying device includes a conveying roller and a conveyor belt, the substrate glass to be processed is placed on the conveyor belt, the conveying device is arranged next to the first glass coating machine, the glass cutting and flipping mechanism, the second glass coating machine, the edge light detector and the ultraviolet stripping mechanism, and the middle section of the conveying device is arranged inside the etching pool.

[0011] Preferably, a fixing opening is provided on the upper portion of the connecting plate, and the connecting plate is fixed to the inner wall of the etching pool by fastening bolts passing through the fixing opening.

[0012] Preferably, the power assembly includes a drag plate fixed on the top outer wall of the connecting plate, a motor is fixedly connected to the drag plate, the output end of the motor faces the interior of the etching pool, a first belt groove block is sleeved on the output end of the motor, a second belt groove block is sleeved on the rotating guide tube located on the upper side of the telescopic spring, the second belt groove block and the first belt groove block are connected by a belt, and the belt is always in a taut state.

[0013] Preferably, a plurality of blade notches are formed at equal distances on the side wall of the friction wheel, and stirring blades are disposed inside the blade notches.

[0014] Preferably, the uppermost end of the outer arc side wall of the friction wheel located below the grinding wheel and the horizontal bottom surface of the arc-shaped concave side wall of the grinding wheel are on the same horizontal plane, and the side wall of the friction wheel located below the grinding wheel close to the grinding wheel is in contact with the vertical arc side wall of the grinding wheel.

[0015] Preferably, the inner side wall of the rotating guide tube is provided with a long groove corresponding to the radial convex strip block, the long groove is arranged horizontally, and the radial convex strip block slides in the long groove.

[0016] Preferably, the material of the friction wheel is set to polytetrafluoroethylene, and the surface material of the friction wheel is set to a nano disc brush resistant to chemical reagents.

[0017] The invention discloses an operation method of an ultra-thin substrate glass edge processing device, comprising the following steps: step 1: subjecting the substrate glass to be processed to one-side coating once through a first glass coating machine; step 2: subjecting the substrate glass to be processed that has been coated once to a glass cutting and flipping mechanism for cutting and flipping; step 3: subjecting the substrate glass to be processed that has been cut and flipped to another side coating once through a second glass coating machine; step 4: subjecting the substrate glass to be processed that has been coated on both sides to an etching pool through a conveyor belt, and after being processed by an edge grinding and wiping structure, it is then transported by a conveyor belt to an edge light detector; step 5: detecting unqualified etched substrate glass through an edge light detector, and transporting qualified substrate glass to an ultraviolet stripping mechanism through a conveyor belt, and undergoing double-sided stripping to complete the processing.

[0018] Beneficial effects of the present invention:

[0019] 1. The setting of the edge grinding and wiping structure delays the time for the substrate glass to be processed to pass through the grinding wheel, so that the grinding wheel can grind the edge of the substrate glass to be processed more fully. The friction wheel presses the coating of the upper and lower surfaces of the substrate glass to be processed that do not need to be polished, and the smooth surfaces of the grinding wheel and the friction wheel are in contact with each other, which not only reduces the gap, but also prevents the debris polished by the grinding wheel from gathering in the gap and cooling and shaping, so that the friction wheel wipes the upper and lower edges of the grinding wheel more thoroughly and smoothly, which greatly improves the edge processing efficiency of the single ultra-thin substrate glass. The structure is exquisite, efficient, and highly automated, and is suitable for popularization and use.

[0020] 2. Through the setting of the fan blade notch and the stirring blade, the friction wheel utilizes the setting of the stirring blade angle during the grinding and molding process, so that a circulating etching liquid flow is formed at the edge of the substrate glass, thereby more efficiently driving the glass fragments generated during the edge grinding process, which not only further avoids the accumulation of broken glass, but also brings in etching liquid with a higher concentration in the etching pool, etches the edge of the substrate glass more efficiently, and promotes efficient edge grinding of the grinding wheel. Although the structural setting is simple, the effect is significant. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] Figure 1 It is a complete structural schematic diagram of the production line in the present invention;

[0023] Figure 2 It is a schematic diagram of the structure inside the etching pool of the present invention;

[0024] Figure 3 It is a structural schematic diagram of the edge grinding and wiping structure in the present invention.

[0025] In the figure: 1. first glass laminating machine; 2. glass cutting and flipping mechanism; 3. second glass laminating machine; 4. etching pool; 401. connecting plate; 402. fixing port; 403. drag plate; 5. motor; 501. first belt groove block; 502. belt; 503. second belt groove block; 6. rotating guide tube; 7. rotating shaft; 701. radial convex strip block; 702. first bevel gear; 703. friction wheel; 704. fan blade notch; 705. stirring blade; 8. telescopic spring; 801. U-shaped groove block; 802. grinding wheel; 803. central rotating shaft; 804. second bevel gear; 805. limiting plate; 806. U-shaped bottom groove block; 9. conveyor belt; 901. conveying roller; 10. edge light detector; 11. UV stripping mechanism. DETAILED DESCRIPTION

[0026] 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.

[0027] Reference Figure 1-3As shown, the present invention is an ultra-thin substrate glass edge processing equipment, comprising a first glass laminating machine 1, a glass cutting and flipping mechanism 2, a second glass laminating machine 3, an etching pool 4, an edge light detector 10, an ultraviolet stripping mechanism 11 and a conveying device for transmitting the substrate glass to be processed, and the two corresponding inner walls of the etching pool 4 are provided with edge grinding and wiping structures. It should be supplemented that the first glass laminating machine 1, the glass cutting and flipping mechanism 2, the second glass laminating machine 3, the edge light detector 10 and the ultraviolet stripping mechanism 11 are all existing The technology will not be elaborated in detail here. The first glass coating machine 1 is used to coat one side of the substrate glass to be processed, the glass cutting and flipping mechanism 2 is used to cut and flip the substrate glass to be processed, the second glass coating machine 3 is used to coat the substrate glass to be processed after cutting and flipping, the edge light detector 10 is used to detect whether the substrate glass is qualified after etching, and the ultraviolet stripping mechanism 11 is used to remove the coating on both sides of the substrate glass. It should be noted that the coating is made of a flexible film resistant to chemical etching solution, which is used to protect the surface of the substrate glass to be processed.

[0028] The edge grinding and wiping structure includes a connecting plate 401 fixedly connected to the inner wall of the etching pool 4, a power assembly is arranged on the top of the connecting plate 401, a U-shaped groove block 801 is fixedly connected to the middle of the side wall of the connecting plate 401 toward the conveying device through a telescopic spring 8, a limiting plate 805 is fixedly connected to the side wall of the connecting plate 401 located below the telescopic spring 8, a U-shaped bottom groove block 806 is fixedly connected to the bottom surface of the U-shaped groove block 801, the limiting plate 805 is slidably connected in the U-shaped bottom groove block 806, and the end of the U-shaped groove block 801 is rotatably connected to the central shaft 803. The central shaft 803 is located inside the U-shaped groove block 801 and is sleeved with a grinding wheel 802. The two ends of the central shaft 803 located outside the U-shaped groove block 801 are sleeved with second bevel gears 804. The side walls of the connecting plate 401 are located on the upper and lower sides of the telescopic spring 8 and are symmetrically provided with wiping components. The limiting plate 805 is set to slide in the U-shaped bottom groove block 806, so that the U-shaped groove block 801 is always kept in horizontal and stable movement, which further improves the grinding quality of the grinding wheel 802, greatly improves the etching quality of the etching pool 4, and the structural setting is simple but efficient.

[0029] Among them, it should be supplemented that the power component controls the rotating guide tube 6 to rotate on the side wall of the connecting plate 401. Furthermore, the power component includes a drag plate 403 fixed to the outer wall of the top of the connecting plate 401, and a motor 5 is fixedly connected to the drag plate 403. The output end of the motor 5 faces the inside of the etching pool 4, and the output end of the motor 5 is sleeved with a first belt groove block 501. The rotating guide tube 6 located on the upper side of the telescopic spring 8 is sleeved with a second belt groove block 503. The second belt groove block 503 and the first belt groove block 501 are connected by a belt 502, and the belt 502 is always in a taut state.

[0030] The wiping assembly includes a rotating guide tube 6 rotatably connected to the side wall of the connecting plate 401, and the rotating guide tube 6 is slidably connected to a rotating shaft 7 toward the end of the conveying device. The rotating shaft 7 is sleeved with a first bevel gear 702 near the second bevel gear 804, and the first bevel gear 702 and the second bevel gear 804 are meshed. The rotating shaft 7 is provided with a radial convex block 701 between the rotating guide tube 6 and the first bevel gear 702, which is used to keep the rotating shaft 7 and the rotating guide tube 6 rotating synchronously. The end of the rotating shaft 7 away from the rotating guide tube 6 is sleeved with a friction wheel 703, and the lowermost end of the outer arc side wall of the friction wheel 703 located above the grinding wheel 802 and the arc of the grinding wheel 802 The horizontal top surface of the concave side wall of the grinding wheel 802 is on the same horizontal plane, the side wall of the friction wheel 703 located above the grinding wheel 802 close to the grinding wheel 802 is in contact with the vertical arc side wall of the grinding wheel 802, the side wall where the friction wheel 703 and the grinding wheel 802 are in contact is set to a smooth surface, and the vertical arc side wall of the grinding wheel 802 is set to a smooth surface. It should be supplemented that the uppermost end of the outer arc side wall of the friction wheel 703 located below the grinding wheel 802 and the horizontal bottom surface of the arc-shaped concave side wall of the grinding wheel 802 are on the same horizontal plane, and the side wall of the friction wheel 703 located below the grinding wheel 802 close to the grinding wheel 802 is in contact with the vertical arc side wall of the grinding wheel 802.

[0031] The working principle of the edge grinding and wiping structure is as follows: in the process of grinding the edge of the substrate glass to be processed by the grinding wheel 802, the second bevel gear 804 arranged at both ends of the central shaft 803 and the corresponding meshing first bevel gear 702 are driven, so that the movement direction of the substrate glass to be processed driven by the grinding wheel 802 is opposite to the direction of the substrate glass to be processed driven by the two friction wheels 703, and the movement of the substrate glass to be processed driven by the two friction wheels 703 is consistent with the movement direction of the substrate glass to be processed driven by the conveyor belt 9, which delays the time for the substrate glass to be processed to pass through the grinding wheel 802, so that the grinding wheel 802 grinds the edge of the substrate glass to be processed more fully, and in this process, due to the relative relationship between the friction wheel 703 and the grinding wheel 802, The friction wheel 703 presses the coating on the upper and lower surfaces of the substrate glass to be processed that do not need to be polished, which not only increases the stability of the substrate glass, but also avoids the detachment of the coating, and protects the upper and lower surfaces of the substrate glass from corrosion. The smooth surfaces of the grinding wheel 802 and the friction wheel 703 contact each other, which not only reduces the gap, but also avoids the accumulation and cooling of debris polished by the grinding wheel 802 in the gap. This is because the contact surfaces of the grinding wheel 802 and the friction wheel 703 rub against each other, which will increase the temperature in the gap, thereby avoiding the accumulation and cooling of tiny debris in the gap, making the friction wheel 703 wipe the upper and lower edges polished by the grinding wheel 802 more thoroughly and smoothly, greatly improving the edge processing efficiency of the single-piece ultra-thin substrate glass. The structure is exquisite and efficient, with a high degree of automation, and is suitable for popularization and use.

[0032] Furthermore, the conveying device includes a conveying roller 901 and a conveyor belt 9, the substrate glass to be processed is placed on the conveyor belt 9, the conveying device is arranged next to the first glass coating machine 1, the glass cutting and flipping mechanism 2, the second glass coating machine 3, the edge light detector 10 and the ultraviolet stripping mechanism 11, and a middle section of the conveying device is arranged inside the etching pool 4.

[0033] Furthermore, a fixing opening 402 is opened at the upper portion of the connecting plate 401, and the connecting plate 401 is fixed to the inner wall of the etching pool 4 by fastening bolts passing through the fixing opening 402. Through the setting of the connecting plate 401, the wiping assembly can be conveniently removed and installed from the inner wall of the etching pool 4, which is convenient for the later maintenance and inspection of the wiping assembly.

[0034] Furthermore, it should be noted that a number of blade slots 704 are equidistantly provided on the side wall of the friction wheel 703, and stirring blades 705 are provided inside the blade slots 704. By providing the blade slots 704 and the stirring blades 705, the friction wheel 703 can form a circulating flow of etching liquid at the edge of the substrate glass during the grinding and molding process through the setting of the angle of the stirring blades 705. This is a prior art and will not be elaborated on here. This can more efficiently drive the glass fragments generated during the edge grinding process, which not only further avoids the accumulation of glass fragments, but also brings in etching liquid with a higher concentration in the etching pool 4, so as to more efficiently etch the edge of the substrate glass and promote the efficient edge grinding of the grinding wheel 802. Although the structural setting is simple, the effect is significant.

[0035] Furthermore, a long groove corresponding to the radial convex block 701 is formed on the inner wall of the rotating guide tube 6. The long groove is horizontally arranged, and the radial convex block 701 slides in the long groove. Through such an arrangement, the rotating guide tube 6 and the rotating shaft 7 rotate synchronously, and the rotating shaft 7 can slide horizontally in the rotating guide tube 6 and cooperate with the grinding wheel 802 to perform telescopic movement.

[0036] The material of the friction wheel 703 is set to polytetrafluoroethylene, and the surface material of the friction wheel 703 is set to a nano disc brush resistant to chemical reagents.

[0037] The operation method of the ultra-thin substrate glass edge processing equipment includes the following steps: Step 1: Pass the substrate glass to be processed through the first glass coating machine 1 to coat one side at a time; Step 2: Pass the substrate glass to be processed that has been coated once through the glass cutting and flipping mechanism 2 to cut and flip; Step 3: Pass the substrate glass to be processed that has been cut and flipped through the second glass coating machine 3 to coat the other side again; Step 4: The substrate glass to be processed that has been coated on both sides is transported by the conveyor belt 9 into the etching pool 4, and after being processed by the edge grinding and wiping structure, it is transported by the conveyor belt 9 to the edge light detector 10; Step 5: Unqualified etched substrate glass is detected by the edge light detector 10, and qualified substrate glass is transported by the conveyor belt 9 to the ultraviolet stripping mechanism 11, and after double-sided stripping, the processing is completed.

[0038] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. An ultra-thin substrate glass edge processing device, characterized in that: It comprises a first glass laminating machine (1), a glass cutting and flipping mechanism (2), a second glass laminating machine (3), an etching pool (4), an edge light detector (10), an ultraviolet film stripping mechanism (11) and a conveying device for conveying substrate glass to be processed, which are arranged in sequence, and edge grinding and wiping structures are arranged on two corresponding inner side walls of the etching pool (4); The edge grinding and wiping structure comprises a connecting plate (401) fixedly connected to the inner wall of the etching pool (4), a power assembly being arranged on the top of the connecting plate (401), a U-shaped groove block (801) being fixedly connected to the middle of the side wall of the conveying device through a telescopic spring (8), a limiting plate (805) being fixedly connected to the side wall of the connecting plate (401) located below the telescopic spring (8), a U-shaped bottom groove block (806) being fixedly connected to the bottom surface of the U-shaped groove block (801), The limit plate (805) is slidably connected in the U-shaped bottom groove block (806); the end of the U-shaped groove block (801) is rotatably connected to a central shaft (803); the central shaft (803) is located inside the U-shaped groove block (801) and is sleeved with a grinding wheel (802); both ends of the central shaft (803) located outside the U-shaped groove block (801) are sleeved with a second bevel gear (804); and the side walls of the connecting plate (401) are symmetrically provided with wiping components on the upper and lower sides of the telescopic spring (8); The wiping assembly comprises a rotating guide tube (6) rotatably connected to the side wall of the connecting plate (401); the rotating guide tube (6) is slidably connected to a rotating shaft (7) at the end portion facing the conveying device; the rotating shaft (7) is sleeved with a first bevel gear (702) near the second bevel gear (804); the first bevel gear (702) and the second bevel gear (804) are meshed; the rotating shaft (7) is provided with a radial convex block (701) between the rotating guide tube (6) and the first bevel gear (702) for maintaining synchronous rotation of the rotating shaft (7) and the rotating guide tube (6); A friction wheel (703) is sleeved on one end of the moving shaft (7) away from the rotating guide tube (6); the lowermost end of the outer arc side wall of the friction wheel (703) located above the grinding wheel (802) and the horizontal top surface of the arc-shaped concave side wall of the grinding wheel (802) are on the same horizontal plane; the side wall of the friction wheel (703) located above the grinding wheel (802) close to the grinding wheel (802) is in contact with the vertical arc side wall of the grinding wheel (802); the side wall of the friction wheel (703) in contact with the grinding wheel (802) is set as a smooth surface; and the vertical arc side wall of the grinding wheel (802) is set as a smooth surface; The conveying device comprises a conveying roller (901) and a conveying belt (9), the substrate glass to be processed is placed on the conveying belt (9), the conveying device is arranged beside the first glass coating machine (1), the glass cutting and flipping mechanism (2), the second glass coating machine (3), the edge light detector (10) and the ultraviolet stripping mechanism (11), and a middle section of the conveying device is arranged inside the etching pool (4); A fixing opening (402) is provided on the upper portion of the connecting plate (401), and the connecting plate (401) is fixed to the inner wall of the etching pool (4) by fastening bolts passing through the fixing opening (402); The power assembly comprises a carriage (403) fixed to the outer side wall of the top of the connecting plate (401), a motor (5) being fixedly connected to the carriage (403), an output end of the motor (5) facing the inside of the etching pool (4), a first belt groove block (501) being sleeved on the output end of the motor (5), a second belt groove block (503) being sleeved on the rotating guide tube (6) located on the upper side of the telescopic spring (8), the second belt groove block (503) and the first belt groove block (501) being connected via a belt (502), and the belt (502) being always in a taut state; A plurality of blade notches (704) are provided at equal intervals on the side wall of the friction wheel (703), and stirring blades (705) are provided inside each of the blade notches (704).

2. The ultra-thin substrate glass edge processing device according to claim 1, characterized in that: The uppermost end of the outer arc side wall of the friction wheel (703) located below the grinding wheel (802) and the horizontal bottom surface of the arc-shaped concave side wall of the grinding wheel (802) are on the same horizontal plane, and the side wall of the friction wheel (703) located below the grinding wheel (802) close to the grinding wheel (802) is in contact with the vertical arc side wall of the grinding wheel (802).

3. The ultra-thin substrate glass edge processing device according to claim 2, characterized in that: The inner side wall of the rotating guide tube (6) is provided with a long groove corresponding to the radial convex strip block (701), the long groove is arranged horizontally, and the radial convex strip block (701) slides in the long groove.

4. The ultra-thin substrate glass edge processing device according to claim 1, characterized in that: The material of the friction wheel (703) is set to polytetrafluoroethylene, and the surface material of the friction wheel (703) is set to a nano-disk brush resistant to chemical reagents.

5. An operating method of the ultra-thin substrate glass edge processing equipment according to claim 1, characterized in that: The steps include: S1: passing the substrate glass to be processed through a first glass coating machine (1) to coat one side at a time; S2: cutting and flipping the substrate glass to be processed after the first coating through the glass cutting and flipping mechanism (2); S3: passing the cut and turned over substrate glass to be processed through a second glass coating machine (3) to coat the other side of the substrate glass again; S4: The substrate glass to be processed with coatings on both sides is transported by a conveyor belt (9) into an etching pool (4), and after being processed by an edge grinding and wiping structure, it is transported by a conveyor belt (9) to an edge light detector (10); S5: Unqualified substrate glass after etching is detected by an edge light detector (10), and qualified substrate glass is transported to an ultraviolet stripping mechanism (11) via a conveyor belt (9) and stripped on both sides to complete the processing.

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