A device and control method for linking the spacing of coated glass pressure rollers with the cleaning process.

Abstract

This invention discloses a device and method for the coordinated control of the roller spacing and cleaning process in coated glass, relating to the technical field of coated glass cleaning equipment. It solves the problems of existing equipment where roller spacing adjustment is disconnected from the cleaning process, resulting in high energy consumption, unstable cleaning effects, and easy damage to the coating layer. The device includes a spray assembly, a roller brushing unit, and a drying assembly arranged sequentially along the glass travel direction. Each brushing unit has a proximity sensor at its front end and a thickness sensor at its feed end. The controller pre-adjusts the roller spacing based on the thickness signal and controls the start / stop and operating parameters of each component based on the glass position signal. This invention achieves precise coordination between the roller spacing and the cleaning process, reducing energy consumption, improving cleaning quality, and effectively protecting the surface of the coated glass.

Description

Technical Field

[0001] This invention relates to the field of glass deep processing technology, and in particular to a device and control method for the linkage control of the spacing between coated glass pressure rollers and the cleaning process. Background Technology

[0002] In the production process of coated glass, the cleanliness of the glass surface directly affects the adhesion, uniformity, and optical performance of the coating layer. For example, Chinese patent CN216273798U discloses a coated glass cleaning and drying device, including a processing box, a feeding assembly, a cleaning assembly, and a drying assembly. The feeding assembly uses a drive wheel and a spring pressure roller to transport the glass; the cleaning assembly includes upper and lower cleaning rollers and a shower device; and the drying assembly uses an electric heating tube and has a waste heat recovery function. Although this invention achieves basic cleaning and drying of coated glass, it has the following substantial technical defects:

[0003] Fixed brush spacing, unable to adapt to glass of different thicknesses: The fixed installation positions of the upper and lower cleaning brushes only allow cleaning glass of a single thickness. When producing coated glass of different specifications (3-19mm), the spacing cannot be automatically adjusted, and forced use will result in thin glass being crushed or thick glass being unable to pass through. Lack of position detection and linkage control, resulting in serious energy waste: All cleaning and drying components operate continuously, maintaining operation regardless of whether glass passes through, causing significant waste of water and electricity; and without glass position detection, it is impossible to start and stop the components on demand. Passive spring clamping, uncontrollable pressure, easily damaging the coating layer: The feeding component uses spring pressure rollers to passively clamp the glass, and the pressure fluctuates with the glass thickness. Excessive pressure can easily scratch the Low-E coating layer, while insufficient pressure will cause the glass to slip and deviate. Fixed cleaning process parameters, unstable cleaning quality: Process parameters such as spray pressure, brush speed, and drying air velocity are all fixed values, unable to be dynamically adjusted according to glass thickness and contamination level, easily leading to incomplete cleaning or over-cleaning. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the defects of the above-mentioned prior art, such as the non-adjustable roller spacing, lack of linkage control, uncontrollable pressure, and fixed process parameters, and to provide a coated glass cleaning device and method that can automatically adapt to glass of different thicknesses, realize linkage control between the pressure roller spacing and the cleaning process, and achieve stable cleaning quality and energy efficiency.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: This invention provides a device for the linkage control of the spacing between coated glass rollers and the cleaning process. The device includes a conveyor belt for transporting coated glass, on which a spray assembly, several sets of evenly distributed roller brushing units, and a drying assembly are sequentially arranged along the glass's travel direction. Each set of roller brushing units has a proximity sensor at its front end for detecting the glass's position. The proximity sensor is electrically connected to the spray assembly, the roller brushing units, and the drying assembly, respectively, to linkage control the operating parameters of each component and the roller spacing based on the glass position signal.

[0006] As a preferred embodiment of the present invention, the feed end of the conveyor belt is further provided with a thickness sensor for detecting the glass thickness. The thickness sensor is electrically connected to the servo motor of each group of roller washing units so as to pre-adjust the roller spacing of each group of roller washing units according to the detected glass thickness signal.

[0007] As a preferred embodiment of the present invention, the spray assembly includes an upper spray hood and a lower spray hood respectively disposed on the upper and lower sides of the glass travel path, and each of the upper and lower spray hoods is provided with a spray pipe; each spray pipe includes three sets of parallel branch pipes and a water inlet pipe communicating with all the branch pipes, and the water inlet pipe is fixed to the side wall of the upper and lower spray hoods respectively; each set of branch pipes is provided with a plurality of spray heads facing the glass surface; the water inlet pipe is provided with a solenoid valve for adjusting the spray pressure, and the solenoid valve is electrically connected to the proximity sensor to adjust the spray pressure and flow rate according to the glass position signal.

[0008] As a preferred embodiment of the present invention, the roller brushing unit includes an upper roller brush and a lower roller brush arranged parallel to each other; both ends of the upper and lower roller brushes are rotatably connected to bearing seats; one end of each of the upper and lower roller brushes extends out of the corresponding bearing seat and is respectively connected to an independent roller brush drive motor via a coupling; lifting rods are fixedly connected to the top of the bearing seats at both ends of the upper roller brush; the top of the lifting rods is connected to a lifting assembly for driving the upper roller brush to rise and fall to adjust the roller spacing; the roller brush drive motor is electrically connected to the proximity sensor.

[0009] As a preferred embodiment of the present invention, the lifting assembly includes a U-shaped mounting bracket fixed above the conveyor belt. Two sets of parallel longitudinal slide rails are respectively provided on the two vertical sidewalls of the mounting bracket. A longitudinal slide block is slidably connected to each set of longitudinal slide rails. The top of the longitudinal slide block has an inclined structure, and a drive pulley abuts against the inclined structure. The axle of the drive pulley is fixedly connected to the bottom of a horizontal slider. The horizontal slider is slidably connected to a horizontal guide rail, which is fixed to the bottom of the horizontal beam of the mounting bracket. Elastic clamps are provided on both sides of the bottom of the longitudinal slide block. The top of the elastic clamps is connected to the bottom of the longitudinal slide block, and the bottom is fixed to the mounting bracket, to ensure that the longitudinal slide block always remains in contact with the drive pulley.

[0010] As a preferred embodiment of the present invention, a driven screw is provided between two horizontal sliders located on the same side of the mounting bracket, and the driven screw is slidably connected to the horizontal sliders; a drive screw is provided between two horizontal sliders located on both sides of the mounting bracket, and the drive screw is threadedly connected to both horizontal sliders; a servo motor is connected to one end of the drive screw, and the servo motor is fixed to the side wall of the mounting bracket; the bottom of the four longitudinal slides is threadedly connected to the top of the corresponding lifting rod.

[0011] As a preferred embodiment of the present invention, the air-drying assembly includes an upper air-drying hood fixed above the conveyor belt, a lower suction hood disposed at the bottom of the conveyor belt, and an air dryer; the bottom of the upper air-drying hood is provided with a plurality of air outlets facing the upper surface of the glass, and the top of the lower suction hood is provided with a plurality of air inlets facing the lower surface of the glass; the air inlet of the air dryer is connected to the lower suction hood through a pipe, and the air outlet of the air dryer is connected to the upper air-drying hood through a pipe; the air dryer is electrically connected to the controller.

[0012] This invention also provides a method for controlling the linkage between the spacing of the coated glass rollers and the cleaning process. Using the above-mentioned device, the method includes the following steps: S1: A thickness sensor detects the thickness of the coated glass to be cleaned with an accuracy of ±0.1mm and sends the thickness signal to the controller; S2: The controller calculates the required roller spacing based on the thickness signal, controls the servo motor to run at a speed of 100-300r / min, and drives the upper roller brush to rise and fall to a preset height via the lifting component; S3: When the proximity sensor detects that the front end of the glass reaches the corresponding roller brushing unit, it triggers the roller brush drive motor of the roller brushing unit to start, so that the roller brush speed reaches 300-600r / min, and simultaneously triggers the solenoid valve of the spray component to open to a preset opening degree; S4: When the proximity sensor detects that the rear end of the glass leaves the corresponding roller brushing unit, it triggers the roller brush drive motor of the roller brushing unit to stop, and triggers the solenoid valve to close; S5: When the proximity sensor detects that the front end of the glass reaches the position of the air drying component, it triggers the air dryer to start, so that the air outlet speed reaches 10-15m / s, and performs air drying treatment on the glass surface.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. Strong adaptability: Through the direct linkage between the thickness sensor and the servo motor, the automatic and precise adjustment of the roller spacing is achieved, which can seamlessly adapt to the full range of coated glass with thicknesses from 3 to 19 mm without the need to stop the machine for adjustment; 2. Energy-saving and efficient: By using proximity sensors to trigger the start and stop of each component as needed, compared with the continuous operation mode of the comparison file, it can save more than 35% of water resources and more than 30% of electricity. 3. Stable cleaning quality: The system achieves synchronized matching of roller spacing, spray pressure, brushing speed and drying speed, avoiding damage to the coating layer and increasing the cleaning pass rate to over 99.8%. 4. High reliability: It adopts a distributed control architecture, eliminates the centralized controller, eliminates the risk of single point of failure, and the failure of a single unit does not affect the normal operation of other units. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is the front view of the present invention; Figure 3 This is a schematic diagram of the structure of the spray assembly of the present invention; Figure 4 This is a cross-sectional structural diagram of the present invention; Figure 5This is a schematic diagram of the structure of the roller brushing unit of the present invention; In the diagram: 1. Conveyor belt; 2. Spray assembly; 3. Roller brush washing unit; 4. Drying assembly; 5. Controller; 6. Proximity sensor; 7. Thickness sensor; 21. Spray pipe; 22. Upper spray hood; 23. Lower spray hood; 31. Upper roller brush; 32. Lower roller brush; 33. Roller brush drive motor; 34. Bearing housing; 35. Lifting rod; 36. Lifting assembly; 37. Elastic clamp; 41. Upper drying hood; 4 2. Lower suction hood; 43. Air dryer; 211. Branch pipe; 212. Water inlet pipe; 213. Spray head; 214. Solenoid valve; 361. Mounting bracket; 362. Longitudinal slide rail; 363. Longitudinal slide block; 364. Drive pulley; 365. Horizontal slider; 366. Driven screw; 367. Horizontal guide rail; 368. Servo motor; 369. Drive screw; 411. Air outlet; 421. Air intake. Detailed Implementation

[0015] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0016] In the attached diagram, all identical reference numerals refer to the same components.

[0017] Example 1 like Figure 1-5 As shown, this embodiment provides a device for the linkage control of the spacing between coated glass rollers and the cleaning process. It includes a horizontally arranged conveyor belt 1, on which a spray assembly 2, four evenly distributed roller brushing units 3, and a drying assembly 4 are sequentially arranged along the glass travel direction. The four roller brushing units 3 are arranged at equal intervals, enabling multi-stage progressive brushing of the glass surface to ensure that stubborn stains are thoroughly removed, improving the cleaning effect by more than 15% compared to a three-unit structure.

[0018] Each roller brush washing unit 3 is fixedly equipped with a proximity sensor 6 at its front end. The proximity sensor 6 adopts an inductive proximity switch, with adjustable detection distance and a response time of less than 10ms. The signal output terminal of the proximity sensor 6 is directly electrically connected to the control input terminals of the solenoid valve 214 of the spray assembly 2, the roller brush drive motor 33 and servo motor 368 of the roller brush washing unit 3, and the dryer 43 of the drying assembly 4, forming a distributed control link. This eliminates the need for any intermediate centralized controller, thereby eliminating the risk of single point of failure and significantly improving system reliability.

[0019] A thickness sensor 7 is fixedly installed at the feed end of the conveyor belt 1. The thickness sensor 7 adopts a laser triangulation sensor with a detection accuracy of ±0.1mm and a sampling frequency of 100Hz. The signal output terminal of the thickness sensor 7 is directly electrically connected to the control input terminal of the servo motor 368 of the four sets of roller brushing units 3. This allows for the synchronous automatic adjustment of the spacing between all rollers before the glass enters the cleaning area, eliminating the need for machine stoppage and significantly improving production efficiency.

[0020] The spray assembly 2 includes an upper spray hood 22 and a lower spray hood 23, which are fixedly installed on the upper and lower sides of the glass travel path, respectively. Both the upper spray hood 22 and the lower spray hood 23 are welded from stainless steel, with their openings facing the glass surface. Spray pipes 21 are fixedly installed inside both the upper spray hood 22 and the lower spray hood 23. Each spray pipe 21 includes three sets of parallel branch pipes 211 and a water inlet pipe 212 connected to all the branch pipes 211. The water inlet pipes 212 are fixed to the outer walls of the upper spray hood 22 and the lower spray hood 23, respectively. Several spray heads 213 facing the glass surface are evenly installed on each set of branch pipes 211. The spray heads 213 are fan-shaped nozzles, capable of forming a uniform water curtain covering the entire glass surface. A solenoid valve 214 for adjusting the spray pressure is installed in series on the water inlet pipe 212. The solenoid valve 214 is a proportional solenoid valve, which can realize continuous pressure adjustment within the range of 0-1MPa. The control input terminal of the solenoid valve 214 is electrically connected to the proximity sensor 6, which can automatically adjust the spray pressure and flow rate according to the glass position signal, realize on-demand spraying, and effectively save water resources.

[0021] The roller brushing unit 3 includes an upper roller brush 31 and a lower roller brush 32 arranged parallel to each other. The bristles of both the upper and lower roller brushes 31 and 32 are made of nylon, with moderate hardness, ensuring cleaning effectiveness without damaging the coating layer. Both ends of the upper and lower roller brushes 31 and 32 are rotatably connected to bearing seats 34. The bearing seats 34 use mounted spherical bearings, ensuring smooth operation and easy maintenance. One end of each upper and lower roller brush 31 extends out of its corresponding bearing seat 34 and is connected to an independent roller brush drive motor 33 via a coupling. The roller brush drive motor 33 is a variable frequency speed control motor with a speed adjustment range of 0-800 r / min, allowing adjustment of the brushing speed according to the glass thickness and degree of contamination. Lifting rods 35 are fixedly connected to the top of the bearing seats 34 at both ends of the upper roller brush 31. The top of the lifting rods 35 is connected to a lifting assembly 36 for driving the upper roller brush 31 to rise and fall, thereby adjusting the roller spacing. The control input terminal of the roller brush drive motor 33 is electrically connected to the proximity sensor 6, which can automatically start and stop according to the glass position signal to avoid wasting power by idling.

[0022] like Figure 5 As shown, the lifting assembly 36 includes a U-shaped mounting bracket 361 fixed above the conveyor belt 1. The mounting bracket 361 is welded from structural steel, resulting in a robust and stable structure. Two sets of parallel longitudinal slide rails 362 are fixedly mounted on the two vertical sidewalls of the mounting bracket 361. Each set of longitudinal slide rails 362 is slidably connected to a longitudinal slide block 363, which can slide up and down along the longitudinal slide rails 362. The top of the longitudinal slide block 363 is a sloped structure with an inclination angle of 15°-30°. A drive pulley 364 abuts against the sloped structure. The drive pulley 364 is made of wear-resistant nylon, allowing for flexible rotation and low noise. The axle of the drive pulley 364 is fixedly connected to the bottom of a horizontal slider 365, which is slidably connected to a horizontal guide rail 367. The horizontal guide rail 367 is fixed to the bottom of the horizontal beam of the mounting bracket 361. The longitudinal slide 363 is provided with elastic clamps 37 on both sides of the bottom. The elastic clamps 37 adopt a compression spring structure, with the top connected to the bottom of the longitudinal slide 363 and the bottom fixed on the mounting bracket 361. This ensures that the longitudinal slide 363 always maintains contact with the drive pulley 364, eliminating transmission gaps and ensuring lifting accuracy.

[0023] A driven screw 366 passes between two horizontal sliders 365 located on the same side of the mounting bracket 361. The driven screw 366 is slidably connected to the horizontal sliders 365, serving as a guide and support. A drive screw 369 passes between two horizontal sliders 365 located on both sides of the mounting bracket 361. The drive screw 369 is threadedly connected to both horizontal sliders 365. One end of the drive screw 369 is connected to a servo motor 368 via a coupling. The servo motor 368 is fixed to the side wall of the mounting bracket 361. The bottom of the four longitudinal slides 363 is threadedly connected to the top of the corresponding lifting rods 35, facilitating installation and fine-tuning of height. The servo motor 368 drives the horizontal sliders 365 to move horizontally via the drive screw 369. This horizontal movement is then converted into the vertical lifting and lowering movement of the upper roller brush 31 through the inclined plane transmission of the drive pulley 364 and the longitudinal slides 363, achieving precise adjustment of the roller spacing.

[0024] The air-drying assembly 4 includes an upper air-drying hood 41 fixed above the conveyor belt 1, a lower suction hood 42 fixed at the bottom of the conveyor belt 1, and an air dryer 43. The bottom of the upper air-drying hood 41 has several air outlets 411 facing the upper surface of the glass. The air outlets 411 adopt a strip-shaped slit structure, which can form a high-speed, uniform air knife. The top of the lower suction hood 42 has several air inlets 421 facing the lower surface of the glass. The air inlets 421 adopt a mesh structure, which can evenly absorb moisture and airflow from the lower surface of the glass. The air inlet of the air dryer 43 is connected to the lower suction hood 42 through a pipe, and the air outlet of the air dryer 43 is connected to the upper air-drying hood 41 through a pipe, forming a "lower suction, upper blowing" circulating air path, which improves drying efficiency and reduces energy consumption. The control input terminal of the air dryer 43 is electrically connected to the controller 5, which can automatically start and stop according to the glass position signal.

[0025] Example 2 This embodiment provides a method for linking the spacing of the coated glass pressure rollers with the cleaning process using the device described in Embodiment 1. The specific steps are as follows: The coated glass to be cleaned is conveyed to the feeding end by the conveyor belt 1. The thickness sensor 7 detects that the thickness of the glass is 6mm and directly sends the thickness signal to the servo motor 368 of the four sets of roller brushing units 3. The control chip built into the servo motor 368 calculates the required roller spacing based on the preset thickness-spacing relationship. It runs at a speed of 200 r / min and drives the horizontal slider 365 to move inward through the drive screw 369. This drives the pulley 364 to roll along the inclined surface of the longitudinal slide block 363, pushing the longitudinal slide block 363 to slide downward along the longitudinal slide rail 362. In turn, the lifting rod 35 drives the upper brush 31 to descend to the preset height, thus adjusting the roller spacing to 6.2 mm. When the front end of the glass reaches the front end of the first set of roller brush washing unit 3, the proximity sensor 6 at that position detects the glass signal and directly outputs a switch signal to trigger the roller brush drive motor 33 of the set of roller brush washing unit 3 to start, so that the roller brush speed reaches 450r / min. At the same time, it directly triggers the solenoid valve 214 of the spray assembly 2 to open to the preset opening degree, and the spray pressure is adjusted to 0.3MPa. When the front end of the glass reaches the front end of the second, third and fourth roller brush washing units 3 in sequence, the corresponding proximity sensor 6 repeats the above triggering action and sequentially starts the corresponding roller brush drive motor 33 and solenoid valve 214; When the rear end of the glass leaves the first set of roller brushing unit 3, the proximity sensor 6 at that position outputs a stop signal, directly triggering the roller brush drive motor 33 to stop running, and simultaneously directly triggering the corresponding solenoid valve 214 to close. When the glass back end leaves the second, third and fourth roller brush washing units 3 in sequence, the corresponding proximity sensor 6 repeats the above-mentioned stop action and shuts down the corresponding roller brush drive motor 33 and solenoid valve 214 in sequence. When the front end of the glass reaches the position of the air drying component 4, the proximity sensor 6 at the front end of the fourth set of roller brushing unit 3 detects the glass signal and directly triggers the start of the air dryer 43, so that the air outlet wind speed reaches 12m / s, and the upper and lower surfaces of the glass are dried at the same time. When the back end of the glass leaves the drying assembly 4, the proximity sensor 6 outputs a stop signal, directly triggering the dryer 43 to stop running, thus completing the entire cleaning process.

[0026] This embodiment utilizes a sensor-triggered actuator control method, reducing control latency to less than 10ms. This ensures precise synchronization between the start / stop of each component and the glass position. Compared to traditional centralized control methods, water conservation rates exceed 35%, and energy conservation rates exceed 30%. The multi-stage brushing design of four sets of roller brushing units thoroughly removes dust, oil, and particulate impurities from the glass surface, while avoiding damage to the coating layer caused by control latency. The cleaning pass rate is increased to over 99.9%.

[0027] Example 3 This embodiment illustrates an application scenario for continuous production of glass of varying thicknesses. The specific process is as follows: The production line is continuously producing 6mm thick coated glass. The roller spacing of the four sets of roller brushing units 3 has been adjusted to 6.2mm. Each component is operating normally according to the control method described in Example 2. When a 12mm thick glass reaches the feed end of conveyor belt 1, the thickness sensor 7 immediately detects the change in glass thickness and directly sends the 12mm thickness signal to the servo motor 368 of the four sets of roller brushing units 3. After receiving the signal, the servo motor 368 immediately runs at a speed of 300r / min, driving the upper roller brush 31 to rise through the lifting component 36. Within 2 seconds, the roller spacing of the four sets of roller brushing units 3 is simultaneously adjusted to 12.2mm. The entire adjustment process does not require stopping the machine, and the production line continues to run continuously. When 12mm thick glass passes through each set of roller brushing unit 3 and drying component 4 in sequence, proximity sensor 6 automatically triggers the start and stop of each component according to the glass position signal, and adjusts the roller brush speed to 500r / min, the spray pressure to 0.4MPa, and the drying wind speed to 14m / s according to the preset process parameters to ensure that glass of different thicknesses can obtain the best cleaning effect. When 6mm thick glass appears again, the thickness sensor 7 detects the thickness change again, and the servo motor 368 automatically adjusts the roller spacing back to 6.2mm, achieving seamless switching production of glass with different thicknesses.

[0028] This embodiment fully demonstrates the wide adaptability of the device of the present invention, which can seamlessly adapt to coated glass with a full range of thicknesses from 3 to 19 mm. It eliminates the need for manual adjustment of the roller spacing, significantly improving the automation level and production efficiency of the production line and reducing the labor intensity of operators. The four independently controlled roller brushing units can also flexibly adjust the brushing parameters of each group according to the degree of glass contamination, achieving differentiated cleaning and further optimizing the cleaning effect and energy consumption.

[0029] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for linking the spacing of coated glass pressure rollers with the cleaning process, comprising a conveyor belt (1) for conveying coated glass, characterized in that, The conveyor belt (1) is provided with a spray assembly (2), several sets of evenly distributed roller washing units (3) and a drying assembly (4) in sequence along the glass traveling direction; a controller (5) is provided on the side of the conveyor belt (1); each set of roller washing units (3) is provided with a proximity sensor (6) for detecting the glass position at the front end; the proximity sensor (6) is electrically connected to the controller (5), and the controller (5) is electrically connected to the spray assembly (2), the roller washing unit (3) and the drying assembly (4) respectively, so as to control the operating parameters of each component in conjunction with the glass position signal, and adjust the roller spacing in conjunction with the glass thickness signal.

2. The device for linking the spacing of coated glass pressure rollers with the cleaning process according to claim 1, characterized in that, The spray assembly (2) includes an upper spray hood (22) and a lower spray hood (23) respectively disposed on the upper and lower sides of the glass travel path. Both the upper spray hood (22) and the lower spray hood (23) are provided with spray pipes (21). Each spray pipe (21) includes three sets of parallel branch pipes (211) and a water inlet pipe (212) connected to all the branch pipes (211). The water inlet pipes (212) are respectively fixed on the side walls of the upper spray hood (22) and the lower spray hood (23). Each set of branch pipes (211) is provided with several spray heads (213) facing the glass surface.

3. The device for linking the spacing of coated glass pressure rollers with the cleaning process according to claim 1, characterized in that, The roller brush washing unit (3) includes an upper roller brush (31) and a lower roller brush (32) arranged parallel to each other. Both ends of the upper roller brush (31) and the lower roller brush (32) are rotatably connected to bearing seats (34). One end of the upper roller brush (31) and the lower roller brush (32) extends out of the corresponding bearing seat (34) and is connected to an independent roller brush drive motor (33) through a coupling. The top of the bearing seats (34) at both ends of the upper roller brush (31) is fixedly connected to a lifting rod (35). The top of the lifting rod (35) is connected to a lifting component (36) for driving the upper roller brush (31) to rise and fall to adjust the roller spacing. The roller brush drive motor (33) is electrically connected to the controller (5).

4. The device for linking the spacing of coated glass pressure rollers with the cleaning process according to claim 3, characterized in that, The lifting assembly (36) includes a U-shaped mounting bracket (361) fixed above the conveyor belt (1). Two sets of parallel longitudinal slide rails (362) are respectively provided on the two vertical sidewalls of the mounting bracket (361). A longitudinal slide block (363) is slidably connected to each set of longitudinal slide rails (362). The top of the longitudinal slide block (363) is an inclined structure, and a drive pulley (364) abuts against the inclined structure. The axle of the drive pulley (364) is fixedly connected to the bottom of a horizontal slider (365). The horizontal slider (365) is slidably connected to a horizontal guide rail (367), which is fixed to the bottom of the horizontal beam of the mounting bracket (361). Elastic clamps (37) are provided on both sides of the bottom of the longitudinal slide block (363), and the top of the elastic clamps (37) is connected to the longitudinal slide block (363). The bottom is connected and fixed to the mounting bracket (361) to ensure that the longitudinal slide (363) is always in contact with the drive pulley (364).

5. The device for linking the spacing of coated glass pressure rollers with the cleaning process according to claim 4, characterized in that, A driven screw (366) is provided between two horizontal sliders (365) on the same side of the mounting bracket (361), and the driven screw (366) is slidably connected to the horizontal sliders (365); a drive screw (369) is provided between two horizontal sliders (365) on both sides of the mounting bracket (361), and the drive screw (369) is threadedly connected to both horizontal sliders (365); a servo motor (368) is connected to one end of the drive screw (369), and the servo motor (368) is fixed to the side wall of the mounting bracket (361) and electrically connected to the controller (5); the bottoms of the four longitudinal slides (363) are respectively threadedly connected to the tops of the corresponding lifting rods (35).

6. The device for linking the spacing of coated glass pressure rollers with the cleaning process according to claim 1, characterized in that, The air drying assembly (4) includes an upper air drying hood (41) fixed above the conveyor belt (1), a lower suction hood (42) disposed at the bottom of the conveyor belt (1), and an air dryer (43); the bottom of the upper air drying hood (41) is provided with a plurality of air outlets (411) facing the upper surface of the glass, and the top of the lower suction hood (42) is provided with a plurality of air inlets (421) facing the lower surface of the glass; the air inlet of the air dryer (43) is connected to the lower suction hood (42) through a pipe, and the air outlet of the air dryer (43) is connected to the upper air drying hood (41) through a pipe; the air dryer (43) is electrically connected to the controller (5).

7. The device for linking the spacing of coated glass pressure rollers with the cleaning process according to claim 1, characterized in that, The feed end of the conveyor belt (1) is also provided with a thickness sensor (7) for detecting the thickness of the glass. The thickness sensor (7) is electrically connected to the controller (5). The controller (5) adjusts the roller spacing of each set of roller washing units (3) in advance according to the glass thickness signal detected by the thickness sensor (7).

8. The device for linking the spacing of coated glass pressure rollers with the cleaning process according to claim 2, characterized in that, The water inlet pipe (212) is equipped with a solenoid valve (214) for adjusting the spray pressure. The solenoid valve (214) is electrically connected to the controller (5). The controller (5) controls the opening of the solenoid valve (214) according to the glass position signal to adjust the spray pressure and flow rate of the spray assembly (2).

9. A method for linking the spacing of coated glass pressure rollers with the cleaning process, characterized in that, Using the apparatus of any one of claims 1-8, Includes the following steps: S1: The thickness sensor (7) detects the thickness of the coated glass to be cleaned with an accuracy of ±0.1mm and sends the thickness signal to the controller (5); S2: The controller (5) calculates the required roller spacing based on the thickness signal and controls the servo motor (368) to run at a speed of 100-300r / min. The upper roller brush (31) is driven to rise and fall to the preset height through the lifting component (36); S3: When the proximity sensor (6) detects that the front end of the glass reaches the corresponding roller brush washing unit (3), the controller (5) controls the roller brush drive motor (33) of the roller brush washing unit (3) to start, so that the roller brush speed reaches 300-600r / min, and at the same time controls the solenoid valve (214) of the spray component (2) to open to the preset opening degree; S4: When the proximity sensor (6) detects that the rear end of the glass leaves the corresponding roller brush washing unit (3), the controller (5) controls the roller brush drive motor (33) of the roller brush washing unit (3) to stop and controls the solenoid valve (214) to close; S5: When the proximity sensor (6) detects that the front end of the glass reaches the position of the air drying assembly (4), the controller (5) controls the air dryer (43) to start, so that the air outlet wind speed reaches 10-15m / s, and the glass surface is air dried.

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