Cleaning treatment device for tempered coated glass before coating

Abstract

The invention relates to the technical field of glass production, and discloses a cleaning treatment device for tempered coated glass before coating, which comprises a cleaning tank filled with a cleaning solution, a conveyor belt is transversely arranged in an inner cavity of the cleaning tank, clamps for fixing the glass are uniformly arranged on the conveyor belt, the clamps positioned at the bottom of the conveyor belt are immersed in the cleaning solution, and the cleaning solution is arranged in the cleaning tank. A brushing mechanism located below the conveying belt is vertically and movably arranged at the lower end of an inner cavity of the cleaning tank, and a flushing mechanism and an air knife water removal mechanism which are located above the conveying belt are vertically and movably arranged at the upper end of the inner cavity of the cleaning tank. The technical problems that existing cleaning equipment is large in size, large in occupied area, complex in driving and control system, high in cost and not suitable for small-area and small-batch glass cleaning are effectively solved, the equipment utilization rate is greatly increased, the rapid cleaning requirement of small-batch tempered coated glass is effectively met, the overall structure is compact and reasonable, linkage is efficient, and the cleaning effect is good. The practicability is very high.

Description

Technical Field

[0001] This invention relates to the field of glass production technology, and in particular to a cleaning treatment device for tempered coated glass before coating. Background Technology

[0002] Before coating, tempered coated glass is contaminated with dust, oil, fingerprints, glass shards, and release agents generated during production, cutting, and handling. These contaminants severely affect the adhesion between the coating layer and the glass surface, leading to easy peeling, flaking, pinholes, or pitting, thus reducing the optical performance, appearance quality, and lifespan of the coated glass. Therefore, pre-coating cleaning is an indispensable key process in the production of tempered coated glass. Currently, the industry's standard cleaning process mainly includes four core steps: soaking, brushing, rinsing, and drying. The soaking step involves placing the glass in a cleaning solution to soften and break down stubborn oil and adhering contaminants on the surface. Dust is generated, laying the foundation for subsequent washing processes. The washing process must be carried out after soaking. Since the contaminants have been softened after soaking, the glass surface can be physically scrubbed with a brush or other structure to efficiently remove stubborn impurities. The rinsing process involves spraying pure water onto the washed glass to thoroughly rinse away any remaining scrubbing wastewater and small impurities, preventing cleaning solution residue from affecting the subsequent coating effect. The drying process usually involves first using an air knife to blow away water to quickly remove most of the moisture from the glass surface, and then using hot air or other drying methods for final drying to ensure that the glass surface is free of water stains and dust, meeting the ultra-high cleanliness requirements for coating.

[0003] Existing tempered coated glass cleaning equipment typically employs a horizontally extended structure to achieve continuous production. Glass is conveyed sequentially through immersion tanks, brushing stations, rinsing stations, and drying stations via a conveyor system. Each process requires independently designed equipment, resulting in a long and bulky overall cleaning system with a significantly increased footprint and high space requirements for the production plant. Furthermore, the independent setup of each process necessitates multiple corresponding drive sources and control systems, requiring strict coordination between stations. This not only increases manufacturing costs but also enhances the complexity of the control system, making it prone to connection failures and impacting cleaning efficiency. Moreover, this type of horizontally extended equipment is primarily suitable for continuous cleaning of large areas and large batches of glass. For cleaning small batches of tempered coated glass, the equipment utilization rate is low, operation is cumbersome, and energy consumption is high, making it impractical and unable to meet the cleaning needs of small batches and small areas of glass. Summary of the Invention

[0004] The technical problem to be solved by the present invention is that the existing cleaning equipment adopts a horizontally laid-out extension structure and the process is set independently, which results in large equipment size, large footprint, complex drive and control system, high cost, and poor practicality for batch cleaning of small area glass. Therefore, we propose a pre-coating cleaning treatment device for tempered coated glass.

[0005] To achieve the above objectives, this application adopts the following technical solution: a pre-coating cleaning device for tempered coated glass, comprising a cleaning tank containing cleaning fluid, a conveyor belt arranged horizontally in the inner cavity of the cleaning tank, clamps for fixing the glass evenly arranged on the conveyor belt, and the clamps located at the bottom of the conveyor belt being immersed in the cleaning fluid, a brushing mechanism located below the conveyor belt being vertically movably arranged at the lower end of the inner cavity of the cleaning tank, and a rinsing mechanism and an air knife dewatering mechanism located above the conveyor belt being vertically movably arranged at the upper end of the inner cavity of the cleaning tank; The brushing mechanism includes a brushing frame located at the lower end of the conveyor belt, and the brushing frame is provided with brushing structures corresponding to the side of the clamp; the rinsing mechanism includes a rinsing frame located at the upper end of the conveyor belt, and the rinsing frame is provided with rinsing pipes corresponding to the side of the clamp; the air knife dewatering mechanism includes a water cutting frame located at the upper end of the conveyor belt and downstream of the rinsing frame, and the water cutting frame is provided with air knives corresponding to the side of the clamp. It also includes a fluid supply mechanism for supplying fluid to the flushing pipe and the air knife. The fluid supply mechanism includes a pure water tank located on the side of the cleaning tank, a water cylinder in the pure water tank, an air cylinder above the water cylinder, and piston rods movably installed on the inner side of the water cylinder and the air cylinder at their adjacent ends. A pair of second one-way valves are installed at the upper and lower ends of the water cylinder, one end of which is connected to the flushing pipe via a hose. A pair of first one-way valves are installed at the lower end of the air cylinder, one end of which is connected to the air knife via a hose. An air vent is installed at the upper end of the water cylinder. The cleaning tank is equipped with a linkage mechanism for synchronously displacing the piston rod, rinsing rack, water cutting rack, and scrubbing rack.

[0006] Preferably, a support frame for supporting the conveyor belt is provided on the inner side of the conveyor belt.

[0007] Preferably, the rinsing rack, water-cutting rack, and scrubbing rack are all frame-like structures fitted onto the conveyor belt.

[0008] Preferably, the linkage mechanism includes a traction frame fitted onto the upper end of the conveyor belt, with the upper end of the traction frame located above the conveyor belt. The upper end of the cleaning tank is provided with a drive source for driving the traction frame to lift and lower. The piston rod, the rinsing frame, and the water-cutting frame are all mounted on the traction frame. The brushing frame and the rinsing frame are each provided with a second rack at their adjacent ends. A first gear is rotatably provided at one end of the inner side of the conveyor belt, located between the two second racks, and the first gear is meshed with the second rack.

[0009] Preferably, the two second check valves located at the same end of the water cylinder are configured such that one is for water inlet and the other is for water outlet, the flushing pipe is connected to the second check valve for water outlet, and the second check valve for water inlet is provided with a bent pipe extending to the bottom of the pure water tank cavity.

[0010] Preferably, the two first one-way valves located at the lower end of the air cylinder are configured such that one is for air outlet and the other is for air inlet, and the air knife is connected to the first one-way valve for air outlet.

[0011] Preferably, the brushing structure is a roller brush rotatably mounted on the inner side of the lower end of the brushing frame, and a second gear is provided at the end of the brushing structure. The inner wall of the cleaning tank is provided with a first rack that meshes with the second gear, so that the brushing structure can rotate when the brushing frame drives the brushing structure to rise and fall.

[0012] Preferably, the clamp includes a U-shaped glass clamp uniformly installed on the surface of the conveyor belt. A floating clamp is movably connected to the inner side of the U-shaped glass clamp away from the conveyor belt. A trapezoidal groove for limiting and clamping both ends of the glass is provided on the side of the floating clamp close to the conveyor belt and the end of the U-shaped glass clamp close to the conveyor belt. An elastic structure for providing pre-tightening force to the glass is provided on the side of the floating clamp away from the conveyor belt.

[0013] Preferably, the end of the floating clamp is provided with a traction rod extending to the outside of the U-shaped glass clamp, and the inner wall of one end of the cleaning tank is provided with a guide plate corresponding to the traction rod, with both ends of the guide plate being inclined surfaces for guiding the traction rod to move upward.

[0014] Preferably, the cleaning tank is provided with loading and unloading ports corresponding to the guide plate and located below the guide plate.

[0015] The technical effects and advantages of this invention are as follows: This invention effectively solves the technical pain points of existing cleaning equipment, such as large size, large footprint, complex drive and control systems, high cost, and unsuitability for small-area, small-batch glass cleaning. It utilizes a horizontal conveyor belt and U-shaped glass clamps perpendicular to the conveyor belt to vertically fix the glass and allow it to circulate with the conveyor belt. The lower half of the conveyor belt is immersed in cleaning solution, while the upper half is exposed, achieving a vertically integrated layout for soaking, brushing, and rinsing processes. This eliminates the need for the traditional horizontally extended multi-station independent structure, integrating multiple wet cleaning processes into a single vertical space. This significantly reduces the overall size and footprint of the equipment, lowers site occupancy costs, and simplifies the overall structure. Furthermore, through specially designed... The linkage mechanism enables a single power source to synchronously drive the three core processes of brushing, rinsing, and air knife dewatering. The rinsing water pressure and air knife pressure are both provided by this linkage mechanism, and the displacement of each working mechanism is also achieved synchronously. It can simultaneously complete cleaning, spraying, and drying operations along both sides of the vertically set glass. This not only significantly reduces the number of drive sources and simplifies the control system, but also lowers the equipment manufacturing cost and maintenance difficulty, improves the coordination accuracy and operational stability of each process, and can flexibly adapt to the cleaning needs of small-area glass of different sizes. It starts up quickly, is easy to operate, greatly improves equipment utilization, and effectively meets the rapid cleaning needs of small batches of tempered coated glass. The overall structure is compact and reasonable, with efficient linkage and strong practicality. Attached Figure Description

[0016] The disclosure of this invention is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this invention. In the drawings, the same reference numerals are used to refer to the same parts: Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 For the present invention Figure 1 A structural diagram from another perspective based on the original structure; Figure 3 This is a partial cross-sectional structural diagram of the cleaning tank and pure water tank of the present invention; Figure 4 This is a structural diagram of the conveyor belt and cleaning tank in their disassembled state according to the present invention; Figure 5 This is a schematic diagram of the overall assembly of the conveyor belt, rinsing frame, water cutting frame, brushing frame, traction frame, and guide plate of the present invention. Figure 6 This is the cross-sectional structure of one end of the conveyor belt in this invention; Figure 7 This is a schematic diagram of the overall structure of the rinsing rack, water-cutting rack, and scrubbing rack of the present invention; Figure 8 For the present invention Figure 7A structural diagram showing the structure in its disassembled state. Figure 9 This is a schematic diagram of the internal structure of the air cylinder and water cylinder of the present invention; Figure 10 This is a structural diagram of the traction frame, flushing frame, and water-cutting frame of the present invention in their disassembled state; Figure 11 This is a schematic diagram of the structure of the brush holder and the first rack in the engagement state of the present invention; Figure 12 This is a schematic diagram of the structure of the U-shaped glass clamp and the guide plate in the engagement state of the present invention; Figure 13 This is a schematic diagram of the floating clamp and U-shaped glass clamp of the present invention in their disassembled state.

[0017] Legend: 1. Cleaning tank; 2. Pure water tank; 3. Drive source; 4. Loading / unloading port; 5. Air cylinder; 6. Conveyor belt; 7. Water cylinder; 8. U-shaped glass clamp; 9. Support frame; 10. Traction frame; 11. Guide plate; 12. Rinsing frame; 13. Water cutting frame; 14. Brushing frame; 15. First rack; 16. Second rack; 17. Elastic structure; 18. First gear; 19. Piston rod; 20. Brushing structure; 21. Vent; 22. First check valve; 23. Second check valve; 24. Rinsing pipe; 25. Air knife; 26. Second gear; 27. Trapezoidal groove; 28. Floating clamp; 29. ​​Traction rod. Detailed Implementation

[0018] It is readily understood that, based on the technical solution of this invention, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of the invention. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative examples of the technical solution of this invention and should not be considered as the entirety of the invention or as limitations or restrictions on the technical solution of this invention.

[0019] like Figures 1-13As shown, a pre-coating cleaning device for tempered coated glass includes a cleaning tank 1 containing cleaning fluid. A conveyor belt 6 is horizontally arranged inside the cleaning tank 1. A geared motor for driving the conveyor belt 6 is installed on the cleaning tank 1. To support the conveyor belt 6 and prevent deformation due to U-shaped glass clamps 8 and downward pressure on the glass, a support frame 9 is provided on the inner side of the conveyor belt 6. The support frame 9 is bolted to the inner wall of the cleaning tank 1. Clamps for fixing the glass are uniformly fixed on the conveyor belt 6. To facilitate loading and unloading, the present invention provides a preferred embodiment of the clamps, specifically: the clamps include U-shaped clamps uniformly installed on the surface of the conveyor belt 6. The glass clamp 8 has one open end. A floating clamp 28 is movably connected to the inner side of the U-shaped glass clamp 8 away from the conveyor belt 6. The floating clamp 28 and the U-shaped glass clamp 8 near the conveyor belt 6 are provided with trapezoidal grooves 27 for limiting and clamping both ends of the glass. The trapezoidal grooves 27 do not make contact obstruction to the side of the glass, but can limit the side of the glass. The floating clamp 28 away from the conveyor belt 6 is provided with an elastic structure 17 for providing pre-tightening force to the glass. The elastic structure 17 is preferably a vertically arranged spring. The two ends of the spring are fixed to the floating clamp 28 and the inner side of the U-shaped glass clamp 8, respectively.

[0020] To facilitate the release of the glass, a traction rod 29 extending to the outside of the U-shaped glass clamp 8 is provided at the end of the floating clamp 28. A roller is rotatably provided at the end of the traction rod 29. A guide plate 11 corresponding to the traction rod 29 is provided on the inner wall of one end of the cleaning tank 1. The two ends of the guide plate 11 are inclined surfaces for guiding the traction rod 29 to move upward. When the roller at the end of the traction rod 29 is located at the top of the guide plate 11, the inner wall of the trapezoidal groove 27 on the floating clamp 28 will release the clamping state on the end of the glass away from the conveyor belt 6. The cleaning tank 1 is provided with loading and unloading ports 4 corresponding to the guide plate 11 and located below the guide plate 11 to facilitate the loading and unloading of glass.

[0021] To achieve the immersion of the glass, the clamps located at the bottom of the conveyor belt 6 are immersed in the cleaning solution. When the U-shaped glass clamps 8 bring the glass to the bottom of the conveyor belt 6, immersion can be achieved. A brushing mechanism located below the conveyor belt 6 is vertically and movably installed at the lower end of the inner cavity of the cleaning tank 1. A rinsing mechanism and an air knife dewatering mechanism located above the conveyor belt 6 are vertically and movably installed at the upper end of the inner cavity of the cleaning tank 1.

[0022] As one embodiment, the washing mechanism includes a washing frame 14 disposed at the lower end of the conveyor belt 6. The washing frame 14 is frame-shaped and is fitted on the outer side of the lower end of the conveyor belt 6 without contacting the conveyor belt 6. The upper end is located inside the support frame 9. The lower end of the washing frame 14 is also frame-shaped. The two ends of the inner side of the lower frame structure are respectively provided with washing structures 20 corresponding to the sides of the clamps. The washing structure 20 is preferably a roller brush. In order to achieve rotation, a second gear 26 is provided at the end of the washing structure 20. The inner wall of the cleaning tank 1 is provided with a first rack 15 that meshes with the second gear 26. Thus, when the washing frame 14 drives the washing structure 20 to rise and fall, the washing structure 20 can rotate.

[0023] As one embodiment, the rinsing mechanism includes a rinsing frame 12 disposed on the upper end of the conveyor belt 6. The rinsing frame 12 is frame-shaped and is fitted on the outer side of the upper end of the conveyor belt 6 without contacting the conveyor belt 6. The lower end is located inside the support frame 9. The upper end of the rinsing frame 12 has a liquid level frame structure. The two ends of the inner side of the upper frame structure are respectively installed with rinsing pipes 24. The sidewalls of the rinsing pipes 24 are uniformly provided with nozzles along the length direction, which correspond to the side of the clamp.

[0024] As one embodiment, the air knife dewatering mechanism includes a water cutting frame 13 located at the upper end of the conveyor belt 6 and downstream of the rinsing frame 12. The structure of the water cutting frame 13 is similar to that of the rinsing frame 12. It is a frame in shape, with the upper end also being a frame structure and the lower end located inside the support frame 9. Air knives 25 corresponding to the sides of the clamp are symmetrically arranged on both sides of the frame structure at the upper end. The air knives 25 are hollow structures, and flat air outlet slits are provided on the adjacent sides of the two air knives 25.

[0025] To supply water to the rinsing pipe 24 and air to the air knife 25, the present invention also provides a fluid supply mechanism for supplying fluid to the rinsing pipe 24 and the air knife 25. In a preferred embodiment, the fluid supply mechanism includes a pure water tank 2 located on the side of the cleaning tank 1, containing clean pure water. A vertical water cylinder 7 is installed in the pure water tank 2, and an air cylinder 5 is located above the water cylinder 7. The air cylinder 5 is installed on the side wall of the cleaning tank 1. A piston rod 19 is movably installed on the inner side of the adjacent ends of both the water cylinder 7 and the air cylinder 5, and the piston rods 19 are connected as a single unit, allowing for synchronous lifting and lowering. A pair of piston rods are provided at each of the upper and lower ends of the water cylinder 7. The second one-way valve 23, located at the same end of the water cylinder 7, is configured such that one is for water inlet and the other is for water outlet. The flushing pipe 24 is connected to the second one-way valve 23 for water outlet via a hose. The second one-way valve 23 for water inlet is provided with a bent pipe extending to the bottom of the inner cavity of the pure water tank 2 for sucking pure water from the pure water tank 2. A pair of first one-way valves 22 are provided at the lower end of the air cylinder 5. The two first one-way valves 22 are configured such that one is for air outlet and the other is for air inlet. The air knife 25 is connected to the first one-way valve 22 for air outlet via a hose. The upper end of the water cylinder 7 is provided with a vent 21.

[0026] Furthermore, in order to achieve the vertical displacement of the rinsing frame 12, the water-cutting frame 13, the scrubbing frame 14, and the piston rod 19, a linkage mechanism for driving the piston rod 19, the rinsing frame 12, the water-cutting frame 13, and the scrubbing frame 14 to move synchronously is provided in the cleaning tank 1. As a preferred embodiment, the linkage mechanism includes a traction frame 10 sleeved on the upper end of the conveyor belt 6. The traction frame 10 is frame-shaped, with its upper end located above the conveyor belt 6 and its lower end located inside the support frame 9. The upper end of the cleaning tank 1 is provided with a mechanism for driving the traction frame 10 to move up and down. The drive source 3 is preferably a cylinder or a hydraulic cylinder, or other drive devices that can pull the traction frame 10 up and down. The piston rod 19, the rinsing frame 12 and the water cutting frame 13 are all installed on the traction frame 10. In order to realize the reverse displacement of the brushing frame 14, a second rack 16 is provided at the close end of the brushing frame 14 and the rinsing frame 12. A first gear 18 is rotatably provided on the inner side of one end of the support frame 9, located between the two second racks 16, and the first gear 18 and the second rack 16 are in a meshing state.

[0027] It should be noted that as the amount of wastewater in the cleaning tank 1 increases, a valve can be installed on the cleaning tank 1 to allow for periodic or continuous discharge, ensuring that the liquid level in the cleaning tank 1 can submerge the glass below the conveyor belt 6 but not the glass above the conveyor belt 6.

[0028] Working principle: During use, cleaning solution is filled into the cleaning tank 1, and the cleaning solution submerges the U-shaped glass clamp 8 below the conveyor belt 6. Clean rinsing water is filled into the pure water tank 2. The glass to be cleaned is placed into the U-shaped glass clamp 8 through the loading / unloading port 4 by manual labor or a robotic arm, so that the upper end of the glass is located in the trapezoidal groove 27 of the U-shaped glass clamp 8 near the end of the conveyor belt 6, and the upper end is located in the trapezoidal groove 27 at the bottom of the floating clamp 28. The traction rod 29 in the loading / unloading port 4 area is located at the top of the guide plate 11. Therefore, the floating clamp 28 is not clamping the upper end of the glass. When the elastic structure 17 is in a contracted state, the trapezoidal cross section of the trapezoidal groove 27 not only does not block the side of the glass in contact, but also limits the side of the glass. Then, the conveyor belt 6 moves and moves the glass. When the traction rod 29 separates from the guide plate 11, the elastic structure 17 drives the floating clamp 28 to reset. Thus, the floating clamp 28 clamps the glass through the trapezoidal groove 27. Then, the glass cup is moved to the bottom of the conveyor belt 6, where it can be soaked in cleaning liquid. After brushing, rinsing and air knife dewatering, it will return to the loading and unloading port 4 for unloading and loading.

[0029] The specific principles of scrubbing, rinsing, and air knife dewatering are as follows: When the glass reaches the washing structure 20, the conveyor belt 6 stops. Simultaneously, the rinsing rack 12 and the water-cutting rack 13 above the conveyor belt 6 each correspond to a U-shaped glass clamp 8. Then, the drive source 3 controls the traction frame 10 to move downwards. The traction frame 10 drives the rinsing rack 12 and the water-cutting rack 13 to move downwards synchronously. Due to the action of the second rack 16 and the first gear 18, the lower washing rack 14 drives the washing structure 20 to move upwards. Furthermore, the cooperation of the second gear 26 and the first rack 15 enables the rotation of the washing structure 20, thereby achieving the washing of the glass sides. The roller brush, when the traction frame 10 moves down, also drives the piston rod 19 in the air cylinder 5 and water cylinder 7 to move down synchronously. When the piston rod 19 in the water cylinder 7 moves down, it generates a negative pressure at the upper end of the water cylinder 7 and a positive pressure at the lower end. The negative pressure causes a second one-way valve 23 at the upper end of the water cylinder 7 to draw pure water from the pure water tank 2, while the positive pressure at the lower end causes a second one-way valve 23 at the lower end of the water cylinder 7 to discharge pure water. The discharged pure water flows through a hose to the rinsing pipe 24, and finally sprays out through the nozzle on the rinsing pipe 24 to both sides of the glass, achieving the purpose of cleaning the glass. While rinsing the glass side, the piston rod 19 in the air cylinder 5 moves down, compressing the air at the lower end of the air cylinder 5. The pressurized gas is discharged through the first one-way valve 22 at its lower end, and then enters the air knife 25 through the hose. The high pressure of the air knife blows the glass side, removing most of the water droplets. When the traction frame 10 rises, it will drive the rinsing frame 12 and the water cutting frame 13 to rise, and the brush frame 14 to fall. The brushing structure 20 also uses a roller brush, and the rinsing pipe 24 also rinses. However, when the air knife 25 rises, it will not blow the glass. At this time, the air cylinder 5 exhausts through the vent 21 at the upper end, and the lower end... The first one-way valve 22 draws in outside air, and the one-way blowing ensures that water droplets always move downwards to be removed, avoiding being blown to the top of the glass and causing ineffective water removal. This process is repeated to achieve brushing, rinsing and water removal according to the actual stains on the glass. After that, the conveyor belt 6 runs again to unload the glass at the loading and unloading port 4, and then the subsequent drying process is carried out. Unloading can be done manually, and since one end of the U-shaped glass clamp 8 is open, an automated robot can also be used to automatically load and unload the glass from this part. The specific configuration can be configured according to the requirements.

[0030] The technical scope of this invention is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this invention, and all such modifications and variations should fall within the protection scope of this invention.

Claims

1. A pre-coating cleaning device for tempered coated glass, characterized in that, The device includes a cleaning tank containing cleaning fluid. A conveyor belt is horizontally arranged inside the cleaning tank. Clamps for fixing glass are evenly arranged on the conveyor belt, and the clamps at the bottom of the conveyor belt are immersed in the cleaning fluid. A brushing mechanism located below the conveyor belt is vertically movably arranged at the lower end of the cleaning tank's inner cavity, and a rinsing mechanism and an air knife dewatering mechanism are vertically movably arranged at the upper end of the cleaning tank's inner cavity, located above the conveyor belt. The brushing mechanism includes a brushing frame located at the lower end of the conveyor belt, and the brushing frame is provided with brushing structures corresponding to the side of the clamp; the rinsing mechanism includes a rinsing frame located at the upper end of the conveyor belt, and the rinsing frame is provided with rinsing pipes corresponding to the side of the clamp; the air knife dewatering mechanism includes a water cutting frame located at the upper end of the conveyor belt and downstream of the rinsing frame, and the water cutting frame is provided with air knives corresponding to the side of the clamp. It also includes a fluid supply mechanism for supplying fluid to the flushing pipe and the air knife. The fluid supply mechanism includes a pure water tank located on the side of the cleaning tank, a water cylinder in the pure water tank, an air cylinder above the water cylinder, and piston rods movably installed on the inner side of the water cylinder and the air cylinder at their adjacent ends. A pair of second one-way valves are installed at the upper and lower ends of the water cylinder, one end of which is connected to the flushing pipe via a hose. A pair of first one-way valves are installed at the lower end of the air cylinder, one end of which is connected to the air knife via a hose. An air vent is installed at the upper end of the water cylinder. The cleaning tank is equipped with a linkage mechanism for synchronously displacing the piston rod, rinsing rack, water cutting rack, and scrubbing rack.

2. The pre-coating cleaning device for tempered coated glass according to claim 1, characterized in that: The inner side of the conveyor belt is provided with a support frame for supporting the conveyor belt.

3. The pre-coating cleaning device for tempered coated glass according to claim 2, characterized in that: The rinsing rack, water-cutting rack, and scrubbing rack are all frame-like structures fitted onto the conveyor belt.

4. The pre-coating cleaning device for tempered coated glass according to claim 3, characterized in that: The linkage mechanism includes a traction frame fitted on the upper end of the conveyor belt, with the upper end of the traction frame located above the conveyor belt. The upper end of the cleaning tank is provided with a drive source for driving the traction frame to lift and lower. The piston rod, rinsing frame, and water-cutting frame are all installed on the traction frame. The brushing frame and rinsing frame are each provided with a second rack at their adjacent ends. A first gear is rotatably provided at one end of the inner side of the conveyor belt, located between the two second racks, and the first gear is meshed with the second rack.

5. The pre-coating cleaning device for tempered coated glass according to claim 1, characterized in that: The two second check valves located at the same end of the water tank are configured such that one is for water inlet and the other is for water outlet. The flushing pipe is connected to the second check valve for water outlet, and the second check valve for water inlet is provided with a bend extending to the bottom of the pure water tank cavity.

6. The pre-coating cleaning device for tempered coated glass according to claim 1, characterized in that: The two first check valves located at the lower end of the air cylinder are configured such that one is for air outlet and the other is for air inlet, and the air knife is connected to the first check valve for air outlet.

7. The pre-coating cleaning device for tempered coated glass according to claim 1, characterized in that: The brushing structure is a roller brush that is rotatably mounted on the inner side of the lower end of the brushing frame, and a second gear is provided at the end of the brushing structure. The inner wall of the cleaning tank is provided with a first rack that meshes with the second gear, so that the brushing structure can rotate when the brushing frame drives the brushing structure to rise and fall.

8. The pre-coating cleaning apparatus for tempered coated glass according to any one of claims 1-7, characterized in that: The clamp includes U-shaped glass clamps uniformly installed on the surface of the conveyor belt. A floating clamp is movably connected to the inner side of the U-shaped glass clamp away from the conveyor belt. The floating clamp and the U-shaped glass clamp are provided with trapezoidal grooves for limiting and clamping both ends of the glass. The floating clamp is provided with an elastic structure for providing pre-tightening force to the glass on the side away from the conveyor belt.

9. The pre-coating cleaning device for tempered coated glass according to claim 8, characterized in that: The floating clamp is provided with a traction rod extending to the outside of the U-shaped glass clamp at its end. The inner wall of one end of the cleaning tank is provided with a guide plate corresponding to the traction rod. The two ends of the guide plate are inclined surfaces for guiding the traction rod to move upward.

10. The pre-coating cleaning device for tempered coated glass according to claim 9, characterized in that: The cleaning tank is provided with loading and unloading ports that correspond to the guide plate and are located below the guide plate.

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