Control method and system for wet roller printing of glass substrate

Abstract

The invention provides a control method and system for wet roller printing of a glass substrate, and relates to the technical field of data processing.The method comprises the steps that a program is set, cat group behaviors are simulated, and the final starting interval of a spraying device and the moving track of a standard substrate are explored and determined in a parameter space through searching, tracking and memorizing mechanisms; during the starting period of the spraying device, the spraying device is not directly associated with components, including a heating element, and is kept in a closed state; putting a standard substrate into a feeding hole of the equipment, starting the spraying device according to the final starting interval and the running track, and enabling the substrate to run back and forth on the equipment so as to bring out foreign matters on the surface of the roller and eliminate roller marks. The spraying interval and the substrate moving track are intelligently simulated and optimized, roller marks are effectively eliminated, equipment is automatically kept clean during long-time standby, and the traceless state is maintained.

Description

Technical Field

[0001] The present invention relates to the technical field of data processing, and particularly to a control method and system for wet roller printing on a glass substrate. Background Art

[0002] During the cleaning or wet etching process of glass-based equipment, a long-standing and difficult problem is the generation of roller marks. Especially after the equipment has been shut down (or on standby) for more than 2 hours, when the equipment is restarted, the roller marks are particularly obvious. These roller marks are difficult to remove in a short time, becoming a major problem for glass-based wet surface treatment equipment. Especially during double-sided treatment, the problem of roller marks on the lower plate surface is more prominent.

[0003] Currently, various solutions have been proposed in the market for the problem of roller marks, but they all have obvious deficiencies. A common solution is to improve the roller material, mainly using high-fluorine rollers. However, the cost of such rollers is extremely high, more than 50 times that of conventional rollers of the same specification. For ordinary water washing processes, their economy is extremely poor. Moreover, even when using high-fluorine rollers, it is necessary to continuously drag the plate for more than five days to effectively eliminate the roller marks, and the time cost is also high.

[0004] Another popular solution in the market is fixed intermittent spraying to wet the rollers. However, this solution requires the equipment to be continuously powered on, and the machine operation cost is relatively high. At the same time, since the water washing tank itself is usually multi-stage water washing and the cleanliness of each water washing tank is different, when the product is re-transported, roller marks may still be generated, but only to a lesser extent. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a control method and system for wet roller printing on a glass substrate, improve production efficiency, and ensure the quality of the cleaning or wet etching process of the glass substrate.

[0006] To solve the above technical problems, the technical solution of the present invention is as follows: In a first aspect, a control method for wet roller printing on a glass substrate, the method includes: Set a program to simulate the behavior of a cat group, and explore and determine the final start interval of the spraying device and the running trajectory of the standard substrate in the parameter space through search, tracking, and memory mechanisms; During the startup period of the spraying device, components that have no direct association with the spraying device, including heating elements, remain in the closed state; Place a standard substrate at the equipment inlet, start the spraying device according to the final start interval and running trajectory, and make the substrate run back and forth on the equipment to carry out foreign matters on the roller surface and eliminate roller marks; When the equipment is planned for long-term standby, i.e., more than 2 hours, start the standby cleaning mode, set the spraying / conveying interval time, so that the substrate automatically runs on the conveying surface at the feeding end or discharging end of the equipment according to the programmed time, preventing the formation of roller marks.

[0007] Furthermore, set a program to simulate the behavior of a cat swarm. Through search, tracking, and memory mechanisms, explore and determine the final start interval of the spraying device and the running trajectory of the standard substrate in the parameter space, including: Determine the range of the start interval of the spraying device, and determine the parameters of the running trajectory of the standard substrate, including speed, acceleration, and running path; Set the number of the cat swarm, and set the initial position of each cat, that is, the combination of the initial start interval of the spraying device and the substrate running trajectory parameters; Each cat searches near the current position, and during the search process, each cat combines with different parameters; Repeat the search, tracking, and memory mechanisms. In each iteration, update the position of each cat according to the search results. If the preset number of iterations is reached, determine the final combination as the final start interval of the spraying device and the running trajectory of the standard substrate. Furthermore, adjust the interval time of the spraying / conveying interval device according to the model, working environment, and production requirements of the equipment to achieve a balance between energy conservation and prevention of recurrence of roller marks.

[0008] Furthermore, the number of runs of the standard substrate should be set according to the equipment condition, production process, or roller mark removal requirements. Under normal circumstances, the standard substrate is run back and forth in the equipment once.

[0009] Furthermore, when the equipment is planned for long-term standby, i.e., more than 2 hours, start the standby cleaning mode, set the spraying / conveying interval time, so that the substrate automatically runs on the conveying surface at the feeding end or discharging end of the equipment according to the programmed time, preventing the formation of roller marks, including: Preset a standby time threshold, that is, 2 hours; Real-time monitor the running state of the equipment, judge whether the equipment is in the standby state, and record the standby time; During the process of the equipment being in the standby state, when the standby time ≥ 2 hours, automatically start the spraying device according to the preset program; The spraying device works according to the set parameters, including spraying pressure and spraying frequency, sprays the cleaning liquid into the equipment, and at the same time starts the conveying device, so that the standard substrate runs back and forth in the equipment according to the preset running path, speed, and number of times to keep the equipment clean and prevent the formation of roller marks.

[0010] Further, during the operation of the spraying device and the conveying device, sensors are used to monitor in real time the pressure and flow rate of the cleaning liquid, as well as the running speed and position parameters of the standard substrate, and to monitor the cleaning degree of the roller surface and the interior of the equipment. If the cleaning effect fails to reach the preset state, including stains remaining on the roller surface or uneven cleaning, the spraying pressure, frequency, and conveying speed parameters are automatically adjusted according to the monitored data.

[0011] In a second aspect, a control system for wet roller printing of glass substrates includes: A parameter exploration module for setting a program to simulate the behavior of a cat swarm, and through search, tracking, and memory mechanisms, exploring and determining in the parameter space the final startup interval of the spraying device and the running trajectory of the standard substrate; A control module for controlling components not directly associated with the spraying device, including heating elements, to remain in the closed state during the startup of the spraying device; A cleaning execution module for starting the spraying device according to the final startup interval and running trajectory after placing the standard substrate at the equipment inlet, and causing the substrate to run back and forth on the equipment to carry out foreign matters on the roller surface and eliminate roller marks; A standby cleaning module for starting the standby cleaning mode when the equipment is planned to be in long-term standby, that is, for more than 2 hours, setting the spraying / conveying interval time, and causing the substrate to automatically run on the conveying surface at the inlet or outlet of the equipment according to the program-set time to prevent the formation of roller marks.

[0012] In a third aspect, a computing device includes: One or more processors; A storage device for storing one or more programs, which when executed by the one or more processors cause the one or more processors to implement the method described above.

[0013] In a fourth aspect, a computer-readable storage medium stores a program that, when executed by a processor, implements the method described above.

[0014] The above solutions of the present invention have at least the following beneficial effects: By setting a program to simulate the behavior of a cat swarm and using search, tracking, and memory mechanisms, the final startup interval of the spraying device and the running trajectory of the standard substrate are efficiently explored and determined in the parameter space. This method can quickly find the final working parameters, improving the cleaning efficiency of the equipment and the elimination effect of roller marks.

[0015] During the startup of the spraying device, components not directly associated with the spraying device (such as heating elements) remain in the closed state, effectively reducing unnecessary energy consumption and lowering production costs. At the same time, this also helps to extend the service life of the equipment and improve the reliability of the equipment.

[0016] By starting the spraying device according to the final start interval and the running track, and making the substrate run back and forth on the equipment, foreign matters on the surface of the roller can be carried out, effectively eliminating roller marks. This improves the quality of the glass substrate surface and meets the requirements of high-precision processing.

[0017] When the equipment is planned to be in standby for a long time (more than 2 hours), the spraying device is started automatically at intervals, and the standard substrate is driven to run back and forth in the equipment to keep the equipment clean, effectively preventing the formation of roller marks. This reduces the preparation time when the equipment is restarted and improves production efficiency.

[0018] In the equipment standby trace-free mode, the time of the spraying / conveying interval device is automatically set, and the substrate is placed on the conveying surface at the feeding end or the discharging end of the equipment, so that the product runs automatically according to the program set time to maintain the trace-free state of the equipment. This ensures that the equipment can still remain clean and trace-free after a long time of standby, improving the overall performance and reliability of the equipment. Description of the Drawings

[0019] Figure 1 is a schematic flow chart of a control method for wet roller marks on a glass substrate provided by an embodiment of the present invention.

[0020] Figure 2 is a schematic diagram of a control system for wet roller marks on a glass substrate provided by an embodiment of the present invention. Detailed Embodiments

[0021] Hereinafter, exemplary embodiments of the present disclosure will be described in more detail with reference to the drawings. Although the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be fully conveyed to those skilled in the art.

[0022] As Figure 1 shown, an embodiment of the present invention provides a control method for wet roller marks on a glass substrate, and the method includes the following steps: Step 11, set a program to simulate the behavior of a cat group, and explore and determine the final start interval of the spraying device and the running track of the standard substrate in the parameter space through search, tracking and memory mechanisms; Step 12, during the start-up period of the spraying device, components that have no direct association with the spraying device, including heating elements, remain in the closed state; Step 13, place the standard substrate at the equipment inlet, start the spraying device according to the final start interval and the running track, and make the substrate run back and forth on the equipment to carry out foreign matters on the surface of the roller and eliminate roller marks; Step 14, when the equipment is planned to be in long-term standby, that is, for more than 2 hours, start the standby cleaning mode, set the spray / conveyor interval time, so that the substrate automatically runs on the conveying surface at the inlet or outlet end of the equipment according to the programmed time, preventing the formation of roller marks.

[0023] In the embodiment of the present invention, by using a program that simulates the behavior of a cat group, with its search, tracking, and memory mechanisms, it can efficiently explore the parameter space, quickly and accurately determine the final start interval of the spray device and the running trajectory of the standard substrate, not only improving the parameter optimization efficiency, but also ensuring that the equipment is in the best operating state, thereby effectively enhancing the cleaning effect and improving the ability to eliminate roller marks.

[0024] Step 12, when the spray device is started, turn off the components that have no direct connection, which can effectively reduce unnecessary energy consumption. This energy-saving design not only reduces the production cost, but also helps to extend the service life of the equipment and improve the overall economy and reliability of the equipment.

[0025] Step 13, by placing a standard substrate at the inlet of the equipment and starting the spray device according to the determined start interval and running trajectory, allowing the substrate to run back and forth in the equipment, it can effectively carry out foreign matters on the surface of the roller, thereby completely eliminating roller marks, improving the quality of the glass substrate surface, meeting the requirements of high-precision processing, and at the same time enhancing the cleaning effect of the equipment.

[0026] Step 14, when the equipment is planned to be in long-term standby (more than 2 hours), automatically start the spray device at intervals and drive the standard substrate to run back and forth in the equipment, which can keep the equipment in a clean state, effectively prevent the formation of roller marks. This preventive measure reduces the preparation time when the equipment is restarted, improves the production efficiency, and at the same time ensures that the equipment can still maintain the best state after long-term standby.

[0027] In a preferred embodiment of the present invention, for the above step 11, setting a program that simulates the behavior of a cat group, and exploring and determining the final start interval of the spray device and the running trajectory of the standard substrate in the parameter space through search, tracking, and memory mechanisms, may include: Step 110, determine the range of the start interval of the spray device, and determine the parameters of the running trajectory of the standard substrate, including speed, acceleration, and running path; Step 111, set the number of the cat group, and set the initial position of each cat, that is, the initial combination of the start interval of the spray device and the substrate running trajectory parameters; Step 112, each cat searches near the current position, and during the search process, each cat combines with different parameters; Step 113, repeatedly execute the search, tracking, and memory mechanisms. In each iteration, update the position of each cat according to the search results. If the preset number of iterations is reached, determine the final combination of numbers as the final startup interval of the spraying device and the running trajectory of the standard substrate.

[0028] In the embodiment of the present invention, according to the performance specifications and process requirements of the equipment, determine the possible range of the startup interval of the spraying device. For example, set the shortest interval to 30 minutes and the longest interval to 2 hours. At the same time, clarify the key parameters of the running trajectory of the standard substrate, including speed (such as a constant speed of 5 meters per minute, or a variable speed strategy of accelerating start, uniform running, and decelerating stop), acceleration (such as an acceleration of 0.5 m / s² at startup and an acceleration of -0.5 m / s² at stop), and running path (such as a linear round-trip path, a specific curve loop path, etc.).

[0029] Step 111, set the number of the cat group according to the complexity of the problem and the available computing resources. For example, set the number of the cat group to 10. Randomly assign an initial position to each cat, that is, a set of initial parameter combinations of the startup interval of the spraying device and the running trajectory of the substrate, so that these initial positions are reasonably distributed in the parameter space.

[0030] Step 112, dynamically allocate the behavior patterns of the cats at a certain mixing rate according to the characteristics of the cat group algorithm. Set an initial value of the mixing rate, for example, 0.3. This means that in the initial stage, 30% of the cats in the cat group will be assigned to the global exploration mode, and the remaining 70% of the cats will execute the local development mode.

[0031] Search methods for different modes: Global exploration mode: The cats in this mode will perform random searches in a relatively large parameter space, which helps to widely explore various possible parameter combinations in the initial stage of the algorithm and avoid falling into local optimal solutions. Specifically, these cats will randomly select parameter combinations for trial within the parameter space of the determined startup interval range of the spraying device, the speed, acceleration, and running path of the standard substrate running trajectory, etc.

[0032] Local development mode: The cats executing this mode will focus on the parameter combination corresponding to the current position. They will explore the adjacent parameter space by adding or subtracting a small amount based on the current parameter values. For example, if the startup interval parameter corresponding to a certain cat is 60 minutes currently, then it may try adjacent values such as 60.5 minutes or 59.5 minutes; for the standard substrate running speed parameter, if the current value is 5 meters per minute, it may try 5.05 m / min or 4.95 m / min, etc.

[0033] During the search process, each cat evaluates different parameter combinations it attempts and determines the impact of these combinations on the spraying effect and the running trajectory of the standard substrate. The evaluation metrics can be set according to actual requirements, such as the spraying uniformity, the cleaning effect on roller marks, and the running stability of the standard substrate. As the number of iterations increases, in order to gradually converge to a better solution, the mixing rate needs to be dynamically adjusted. In a linearly decreasing manner, the proportion of cats in the global exploration mode gradually decreases, and correspondingly, the proportion of cats in the local exploitation mode gradually increases. For example, if the preset total number of iterations is 100 and the initial mixing rate is 0.3, then after each iteration, the mixing rate can be reduced by 0.003. In this way, in the later stage of iteration, more cats will focus on fine-tuning the search around the relatively good parameter combinations that have been discovered, thereby increasing the probability of finding the optimal solution.

[0034] Step 113, repeat the search, tracking, and memory mechanisms. In each iteration, update the position of each cat according to its search results. The tracking mechanism is used to record the high-quality parameter combinations discovered by each cat during the search process, and the memory mechanism is used to store these high-quality combinations for reference or selection during the iteration. When the preset number of iterations is reached, such as 50 iterations, select the final parameter combination from the memory as the final startup interval of the spraying device and the running trajectory of the standard substrate.

[0035] Suppose there is a glass substrate production factory. There is a wet processing equipment in the factory. When processing glass substrates, the roller mark problem has been affecting the product quality. It is decided to use a program that simulates the behavior of a cat swarm to determine the final startup interval of the spraying device and the running trajectory of the standard substrate.

[0036] According to the performance of the equipment and the requirements of the production process, it is determined that the shortest startup interval of the spraying device is 30 minutes and the longest is 2 hours. In terms of the parameters of the running trajectory of the standard substrate, the speed can be a constant speed, such as 5 meters per minute, or a variable speed strategy of accelerating start, constant speed operation, and decelerating stop can be adopted; in terms of acceleration, the acceleration at startup is set to 0.5 m / s², and at stop it is -0.5 m / s²; there are two options for the running path, a straight-line back-and-forth path and a specific curve loop path. These parameter ranges are the basis for subsequent search and optimization.

[0037] Considering the complexity of the problem and the computing resources, the number of cats is set to 10. Just like randomly placing 10 explorers in an unknown forest, a combination of an initial start interval of the spraying device and the running trajectory parameters of the substrate is randomly assigned to each cat. For example, the initial combination of the first cat may be a start interval of the spraying device of 45 minutes, and the standard substrate runs along a straight-line round-trip path at a constant speed of 4 meters per minute; the second cat may have a start interval of 90 minutes, and the substrate adopts a variable-speed strategy and runs along a specific curved circular path, and so on. The initial value of the mixing rate is set to 0.3, which means that initially 3 cats execute the global exploration mode, and the other 7 cats execute the local development mode.

[0038] The 3 cats executing the global exploration mode are like brave explorers, wandering around in the large forest of the entire parameter space. They will randomly select combinations within the start interval range of 30 minutes to 2 hours, different speeds, accelerations, and running paths for attempts. For example, one of the cats may try a start interval of the spraying device of 100 minutes, and the standard substrate runs along a specific curved circular path with a variable-speed strategy and an acceleration of 0.6 m / s².

[0039] The 7 cats executing the local development mode are like miners carefully digging for treasures in a small area. Taking a cat with a current start interval of the spraying device of 60 minutes and a running speed of the standard substrate of 5 meters per minute as an example, it will try to change the start interval to 60.5 minutes or 59.5 minutes, and the running speed to 5.05 meters per minute or 4.95 meters per minute and other adjacent parameter combinations. After each cat tries a parameter combination, it will evaluate this combination. The evaluation indicators include the uniformity of spraying, the cleaning effect on roller marks, the stability of the standard substrate running, etc. For example, after a cat tries a new parameter combination and finds that the spraying uniformity has improved, the roller marks have significantly decreased, and the substrate runs stably, it will remember the effect of this combination. The preset total number of iterations is 100 times, and the mixing rate decreases by 0.003 after each iteration. As the number of iterations increases, the number of cats in the global exploration mode will become fewer and fewer, and the number of cats in the local development mode will become more and more. Just like the exploration team gradually shrinking the search scope and concentrating their energy on the small areas where treasures may be hidden.

[0040] By optimizing the start interval of the spraying device and the running trajectory of the substrate, it is possible to ensure the best spraying effect, thereby effectively eliminating roller marks and improving the surface quality of the glass substrate. This helps to improve production efficiency and product quality and reduce the rejection rate. The optimized start interval of the spraying device and the running trajectory of the substrate can reduce unnecessary energy consumption and material consumption, thereby reducing production costs. At the same time, this also helps to extend the service life of the equipment and reduce maintenance costs.

[0041] In a preferred embodiment of the present invention, the position update formula for each cat is: ; Among them, represents the th individual at the ; represents the th individual at the th iteration; represents the number of iterations; , , represent weight coefficients; , , represent random numbers; represents the position of the benchmark individual among all current individuals; represents the position of the individual adjacent to the benchmark of the th individual.

[0042] In the embodiments of the present invention, the number of the cat group is determined, that is, the total number of individuals. For example, according to the complexity of the problem and computing resources, the number of the cat group can be set to 20. Initialize the position for each individual (cat), and this position represents the initial parameter combination of the spray device start interval and the substrate running trajectory. For example, the spray device start interval can be randomly selected within the range of 30 minutes to 120 minutes, the speed of the substrate running trajectory can be randomly determined between 2 meters per minute and 8 meters per minute, the acceleration can be randomly selected between 0.2 m / s² and 0.8 m / s², and the running path can be randomly selected from preset paths such as straight line round-trip and curve cycle.

[0043] Set the weight coefficients , , , and these coefficients determine the relative influence of the benchmark individual, the adjacent benchmark individual, and random exploration during the position update process. For example, can be set to 0.4, can be set to 0.3, can be set to 0.3 to balance the effects of different factors on the individual position update. Determine the random number generator for generating , , , and these random numbers change in each iteration, increasing the randomness and diversity of the search. The built-in random number generation function in the programming language can be used to generate random numbers in the range of 0 to 1.

[0044] At the beginning of each iteration, calculate the corresponding spray effect according to the positions of all current individuals (i.e., parameter combinations). The spray effect is comprehensively evaluated by the following parameters: Spray uniformity: By setting multiple detection points in a simulated environment, calculating the spray water volume received at each detection point, and then statistically analyzing the variance of these water volumes. The smaller the variance, the more uniform the spray, and the higher the uniformity score. For example, in a 10×10 grid detection area, measure the spray water volume at each grid point, calculate the variance of these water volumes, and normalize it to a value between 0 and 1 as the uniformity score.

[0045] Roller mark cleaning rate: Simulate the operation of a glass substrate under a spraying device and compare the area change of roller marks before and after spraying. The cleaning rate calculation formula is: Cleaning rate .

[0046] Water resource utilization rate: Calculate the ratio of the water volume actually used for cleaning roller marks to the total spray water volume of the spraying device. By simulating the water flow path and action area, statistically analyze the water volume effectively used for cleaning. For example, in the simulation, mark the water flow area that actually acts on cleaning roller marks and calculate the proportion of the water volume in this area to the total spray water volume.

[0047] Combining the spray uniformity, roller mark cleaning rate, and water resource utilization rate, calculate the spray effect score using the weighted average method , and the formula is . For example, Based on the calculated spray effect, determine the benchmark individual , that is, the individual with the best current performance (the highest spray effect score). For each individual , determine its adjacent benchmark individual , which can be a relatively better-performing individual closest in distance . The distance can be calculated using the Euclidean distance formula to measure the proximity of the positions of two individuals in a multi-dimensional parameter space. For each individual , calculate its position at the th iteration according to the position update formula . Among them, , , are newly generated random numbers, , , are preset weight coefficients, is the position of the benchmark individual, is the position of the adjacent benchmark individual. Calculate the spray effect of each individual at the new position and update the performance record of the individual, recording the spray effect score of each individual in each iteration. Check whether the preset number of iterations is reached. If so, output the individual with the highest spray effect score as the final result, that is, the final start interval of the spraying device and the final parameter combination of the substrate operation trajectory.

[0048] The benchmark individuals in the position update formula It guides the cat swarm to move towards the global optimal direction, enhancing the global search ability of the algorithm. Even if the initial position is poor, it can gradually approach the final solution through continuous iteration. Adjacent benchmark individuals enable each individual to consider the information within the local neighborhood when updating its position, which helps to conduct fine-grained search within the local area and improve the accuracy and efficiency of the search. Random numbers 、 、 are used to add randomness to the position update process, avoiding the algorithm from falling into local optimal solutions. At the same time, the adjustment of the weight coefficients 、 、 can further control the diversity and convergence speed of the search. The weight coefficients and random numbers in the position update formula can be adjusted according to specific problems, making the algorithm highly adaptable and flexible. For different spray devices and substrate running trajectory optimization problems, parameters can be adjusted to adapt. By continuously iterating and optimizing the start interval of the spray device and the substrate running trajectory, the spraying effect can be improved, roller marks can be eliminated, and the surface quality of the glass substrate can be enhanced. This is of great significance for improving production efficiency and product quality.

[0049] In a preferred embodiment of the present invention, in step 12 above, during the startup period of the spray device, components that have no direct connection with the spray device, including heating elements, remain in the closed state; in step 13 above, a standard substrate is placed at the equipment inlet, the spray device is started according to the final start interval and running trajectory, and the substrate is run back and forth on the equipment to carry out foreign matters on the roller surface and eliminate roller marks, which may include: Ensure that the surface of the standard substrate is clean and undamaged, meeting the test requirements. Place the standard substrate at the inlet of the equipment and prepare for the spraying test. Adjust the control parameters of the spray device according to the optimal start interval obtained by the cat swarm algorithm. Ensure that the spray device can be accurately started and stopped at the set interval time. Set the running path, speed, and acceleration of the substrate on the equipment according to the optimal running trajectory obtained by the cat swarm algorithm. Ensure that the substrate can run back and forth on the equipment according to the set trajectory. During the startup period of the spray device, ensure that components that have no direct connection with the spray device, such as heating elements, remain in the closed state. This is to avoid interference of these components on the spraying effect and ensure the accuracy of the test results.

[0050] Start the spraying device and the substrate running according to the set start intervals and running trajectories. Observe the working state of the spraying device and the running trajectory of the substrate to ensure they meet the expectations. During the back-and-forth running of the substrate, the spraying device continuously sprays liquid onto the roller surface, removing foreign substances on the roller surface. At the same time, the running trajectory and speed of the substrate help to evenly distribute the liquid, ensuring that the roller surface is thoroughly cleaned. Through multiple back-and-forth runs, the roller marks are gradually eliminated, and the cleanliness of the roller surface is improved. Throughout the process, monitor the working state of the spraying device, the running trajectory of the substrate, and the cleanliness of the roller surface. Record relevant data, such as the number of sprays, the running time of the substrate, the cleanliness of the roller surface, etc., for subsequent analysis and optimization.

[0051] When the cleanliness of the roller surface meets the requirements, stop the spraying device and the substrate running. Ensure the safe stop of the equipment and carry out necessary cleaning and maintenance work.

[0052] In another preferred embodiment of the present invention, according to the equipment model, working environment, and production requirements, adjust the interval time of the spraying / conveying interval device to achieve a balance between energy conservation and prevention of the recurrence of roller marks, which may include: In the embodiment of the present invention, determine the currently used equipment model, including the specific specifications and parameters of the spraying device and the conveying device. Evaluate the working environment where the equipment is located, including temperature, humidity, dust concentration, etc., which affect the spraying effect and the formation of roller marks; determine the special requirements of the working environment for the spraying / conveying interval time. Understand the current production requirements, including production volume, production efficiency, product quality requirements, etc., and determine the constraint conditions of the production requirements for the spraying / conveying interval time.

[0053] Based on past production experience and equipment operation conditions, initially set a spraying / conveying interval time.

[0054] This time should not only ensure production efficiency but also initially prevent the recurrence of roller marks. According to the spraying rate of the spraying device, the running speed of the conveying device, and the surface characteristics of the roller, conduct theoretical calculations to obtain a more accurate interval time range. According to the data analysis results, adjust the spraying / conveying interval time so that it not only meets the energy conservation requirements but also effectively prevents the recurrence of roller marks. Continuously monitor the working state of the spraying / conveying device, as well as the cleanliness of the roller surface and the roller mark situation. If any abnormal situation is found, make timely adjustments and handling. Regularly evaluate the rationality of the spraying / conveying interval time and make timely adjustments according to production requirements and environmental changes. Ensure that the equipment always maintains the best working state and achieves a balance between energy conservation and prevention of the recurrence of roller marks.

[0055] In another preferred embodiment of the present invention, the number of times the standard substrate runs should be set according to the equipment condition, production process or roller mark removal requirement. Under normal circumstances, one round-trip run of the standard substrate in the equipment may include: In the embodiment of the present invention, a comprehensive inspection of the equipment is carried out, including the spraying device, conveying device, roller system and control system, etc., to ensure that each component is in good working condition. Record the operation history, maintenance records and any known potential problems of the equipment for consideration when setting the number of runs. Understand the current production process, including the layout of the production line, production rhythm, product types and quality standards, etc., to determine the specific requirements or limitations of the production process for the number of runs of the standard substrate. Analyze the causes of roller marks, such as roller surface contamination, uneven spraying or excessive contact pressure between the substrate and the roller, etc., and determine the initial range of the number of runs of the standard substrate according to the severity and removal difficulty of the roller marks.

[0056] Under normal circumstances, in order to balance production efficiency and roller mark removal effect, one round-trip run of the standard substrate in the equipment is carried out. This run should be sufficient to carry out most of the foreign matters on the roller surface and reduce or eliminate the roller marks. If the equipment condition is poor, such as serious contamination of the roller surface or malfunction of the spraying device, it may be necessary to increase the number of runs of the standard substrate. If the production process has particularly high requirements for the surface quality of the substrate, or the roller marks affect the product quality, the number of runs can also be considered to be increased. Considering the equipment condition, production process and roller mark removal requirement comprehensively, finally determine the number of runs of the standard substrate. Record this number in the production operation instruction or equipment operation procedure for the operators to follow.

[0057] Ensure that the surface of the standard substrate is clean and undamaged, meeting the test or production requirements. Place the standard substrate at the feeding port of the equipment and prepare for running. According to the determined number of runs, set the operation parameters of the equipment, such as conveying speed, spraying frequency and running time, etc., to ensure that these parameters match the material, size and weight of the standard substrate to avoid damage or deviation during the running process. Start the equipment and run the standard substrate according to the set operation parameters, and observe the running state of the equipment and the running situation of the standard substrate to ensure that they meet the expectations. During the running process, monitor the working effect of the spraying device, the cleaning condition of the roller surface and the surface quality of the standard substrate. Record relevant data, such as the number of runs, spraying volume, roller mark situation, etc., for subsequent analysis and optimization. When the standard substrate completes the set number of runs, stop the equipment and take out the standard substrate, check the surface quality of the standard substrate and evaluate the roller mark removal effect.

[0058] In a preferred embodiment of the present invention, in step 14, when the device is planned to be in long-term standby, that is, for more than 2 hours, the standby cleaning mode is started, and the spraying / conveying interval time is set so that the substrate automatically runs on the conveying surface at the feeding end or the discharging end of the device according to the programmed time to prevent the formation of roller marks, which may include: Step 141, preset a standby time threshold, that is, 2 hours; Step 142, monitor the operating state of the device in real time, determine whether the device is in the standby state, and record the standby time; Step 143, during the process that the device is in the standby state, when the standby time ≥ 2 hours, automatically start the spraying device according to the preset program; Step 144, the spraying device works according to the set parameters, including the spraying pressure and the spraying frequency, sprays the cleaning liquid into the device, and at the same time starts the conveying device, so that the standard substrate runs back and forth inside the device according to the preset running path, speed and number of times to keep the device in a clean state and prevent the formation of roller marks.

[0059] In the embodiment of the present invention, through the operation interface of the device, the standby time threshold is set to 2 hours, and this set value is stored in the memory of the device.

[0060] In step 142, high-precision rotational speed sensors, displacement sensors and vibration sensors are respectively installed at key parts such as the motor housing of the device, the connection points of the transmission shafts and the key mechanical transmission joints. The rotational speed sensor selects an electromagnetic rotational speed sensor, which can measure the rotational speed of the motor by sensing the magnetic field change generated when the motor rotates and outputs a pulse signal proportional to the rotational speed. The displacement sensor adopts a laser displacement sensor, which uses the principle of laser ranging to monitor the displacement change of each component of the device in real time to reflect the motion state of the component and outputs accurate distance data. The vibration sensor selects a piezoelectric vibration sensor, which can sensitively sense the vibration generated when the device runs and converts the vibration signal into an electrical signal for output.

[0061] The control system of the device continuously reads the data transmitted by these sensors at a fixed frequency, such as 10 times per second. A complex algorithm is pre-written inside the control system, and this algorithm comprehensively analyzes data such as the motor rotational speed, component displacement and vibration. When the motor rotational speed drops to zero, and the displacements of each component do not change for a long time, and at the same time the vibration amplitude detected by the vibration sensor is at an extremely low level and the duration exceeds the set threshold (such as 5 minutes), it is determined by the algorithm that the device is in the standby state. Once the device is determined to be in the standby state, the hardware timer is immediately started to start timing. The timer stores the recorded standby time data in seconds in the dedicated cache area divided in the device.

[0062] Step 143, when it is monitored that the standby time of the device ≥ 2 hours, immediately trigger a start signal, and this signal is transmitted to the control module of the spraying device through the internal communication bus of the device. Before starting the spraying device, the control module will first conduct a self-check on the spraying device, checking whether the nozzles are blocked, whether the liquid level of the cleaning liquid is normal, whether the pump body can work properly, etc. If the self-check passes, the control module starts the motor and pump body of the spraying device according to the preset program, so that the spraying device starts to work.

[0063] Step 144, after the spraying device is started, its control module adjusts the flow rate and spraying angle of the nozzles according to the preset spraying pressure and spraying frequency parameters, so that the cleaning liquid is evenly sprayed inside the device. At the same time, the control module of the conveying device receives the start signal and drives the motor to run according to the preset running path, speed and number of times parameters, driving the standard substrate to run back and forth along a specific path inside the device. During the running process, the standard substrate contacts the surface of the roller, taking away the foreign matters and stains on the surface of the roller. As the spraying device continuously sprays the cleaning liquid, all components inside the device are effectively cleaned, thus maintaining the clean state of the device and preventing the formation of roller marks.

[0064] Suppose a factory that produces liquid crystal display glass substrates has a batch of glass substrate processing equipment. After a day of production, the equipment enters the standby state. At 8 pm, the control system of the equipment starts to monitor the operating state of the equipment. At this time, all equipment has stopped working, the sensor feedback shows that the equipment is in the standby state, and the timer starts to record the standby time. By 10 pm, the control system detects that the standby time of the equipment reaches 2 hours and immediately triggers a start signal. After receiving the signal, the control module of the spraying device first conducts a self-check, and after confirming no abnormality, starts the spraying device to spray a special cleaning liquid into the equipment at a spraying pressure of 3 bar and a spraying frequency of 10 times per minute. At the same time, the conveying device starts and drives the standard substrate to run back and forth 3 times on the straight track inside the equipment at a speed of 0.5 m per second. After such a cleaning process, the inside of the equipment and the surface of the roller are kept clean. When the equipment is restarted for production the next morning, there are no roller marks, ensuring the quality of the product.

[0065] By starting the standby cleaning mode when the device is on long-term standby, the formation of roller marks can be effectively prevented. The elimination of roller marks makes the surface of the glass substrate more uniform in subsequent cleaning or wet etching processes, reduces product defects caused by roller marks, improves the yield rate of products, and meets the market demand for high-quality glass substrates. Compared with traditional methods of solving roller marks, such as using high-cost improved roller materials or continuously dragging the plate to eliminate roller marks, this standby cleaning mode does not require additional replacement of expensive rollers, nor does it need to run the device continuously for a long time, saving the roller procurement cost and the energy cost of device operation. At the same time, the product scrapping caused by roller marks is reduced, further lowering the production cost. Regularly cleaning the device to remove foreign objects and stains inside the device and on the roller surface reduces the corrosion and wear of these impurities on the device components. For example, the cleaning liquid can prevent the roller surface from rusting and reduce the friction between the roller and the glass substrate, thereby extending the service life of the roller and other device components and reducing the maintenance frequency and repair cost of the device. Avoiding equipment downtime cleaning and product rework caused by roller mark problems allows the equipment to operate continuously and stably, and the production process is smoother. For example, in large-scale production, each device can produce a certain number of additional glass substrates per day, and the overall production efficiency is significantly improved, helping the enterprise to enhance its market competitiveness.

[0066] In another preferred embodiment of the present invention, during the operation of the spraying device and the conveying device, sensors are used to continuously monitor the pressure and flow rate of the cleaning liquid, the running speed and position parameters of the standard substrate, and the cleaning degree of the roller surface and the inside of the device. If the cleaning effect does not reach the preset state, including stains remaining on the roller surface or uneven cleaning, the spraying pressure, frequency, and conveying speed parameters are automatically adjusted according to the monitored data, which may include: In the embodiment of the present invention, a high-precision pressure sensor and an electromagnetic flow sensor are respectively installed on the pipeline of the spraying device. The pressure sensor can continuously sense the pressure change of the cleaning liquid in the pipeline and convert the pressure signal into an electrical signal for transmission to the control system; the electromagnetic flow sensor uses the principle of electromagnetic induction to accurately measure the flow rate of the cleaning liquid and also transmits the data to the control system. On the conveying device, an optical encoder is used as the speed sensor, and by detecting the number of rotations of the transmission component of the conveying device and the time interval, the running speed of the standard substrate is calculated; a laser range finder is installed at the key positions of the device track to determine the position information of the standard substrate, and the speed and position data are continuously fed back to the control system. High-resolution image sensors are arranged on the roller surface and inside the device to continuously collect image data of the roller surface and the inside of the device.

[0067] The data collected by various sensors are aggregated to the central control system of the equipment through wired or wireless transmission. Specialized data analysis software is used to process and analyze the collected data in real time. The pressure and flow data of the cleaning liquid are compared with the preset normal range to determine whether they are stable in a reasonable range; the running speed and position data of the standard substrate are checked to see whether they meet the preset running trajectory and speed requirements. In terms of cleanliness analysis, the images collected by the image sensor are processed with the help of image recognition algorithms to identify the residual stains on the surface of the roller and the cleaning uniformity. For example, the amount of residual stains can be determined by statistically analyzing the number and distribution of pixels in the stain area in the image; the cleaning uniformity can be evaluated by calculating the brightness difference or color feature difference in different areas.

[0068] According to the preset cleaning effect standards, the analyzed data is comprehensively judged. The preset standards include the maximum allowable amount of stain residue on the roller surface, the quantitative index of cleaning uniformity, etc. If the amount of stain residue on the roller surface exceeds the set threshold, or the cleaning uniformity is lower than the standard requirement, it is determined that the cleaning effect has not reached the preset state. Once the cleaning effect does not meet the standard, a parameter adjustment strategy is formulated based on the monitoring data. If there are more stains remaining in a certain area on the roller surface, the spray pressure of the corresponding nozzle in this area is appropriately increased to increase the impact of the cleaning liquid on the stains; at the same time, the spray frequency of this area is increased so that the cleaning liquid acts on the stains more frequently. If the overall cleaning is uneven, adjust the spray angle of the nozzle according to the cleaning situation so that the cleaning liquid can cover the roller surface more evenly; adjust the running speed of the standard substrate, reduce the running speed in the area with poor cleaning effect, extend the cleaning time, and appropriately increase the speed in the area with good cleaning effect to improve the overall cleaning efficiency.

[0069] The adjustment instructions are sent to the control modules of the spray device and the conveying device. After receiving the instructions, the control module of the spray device changes the spray pressure and frequency by adjusting the power of the pump or the opening of the valve; the control module of the conveying device adjusts the speed and direction of the motor to adjust the running speed of the standard substrate. During the adjustment process, the control module will monitor the operating status of the equipment in real time to ensure that the adjustment process is smooth and safe. After the parameters are adjusted, the sensor continues to monitor various parameters and cleaning levels in real time. The cleaning effect is continuously evaluated. If it still does not reach the preset state, data analysis, judgment and parameter adjustment are performed again to form a closed-loop continuous monitoring and optimization process until the cleaning effect meets the preset standards.

[0070] like Figure 2 As shown, an embodiment of the present invention further provides a control system for wet roller printing of a glass substrate, comprising: A parameter exploration module, which is used to set a program to simulate the behavior of a cat group. Through search, tracking, and memory mechanisms, it explores and determines the final startup interval of the spraying device and the running trajectory of the standard substrate in the parameter space; A control module, which is used to control components that have no direct connection with the spraying device, including heating elements, to keep them in a closed state during the startup of the spraying device; A cleaning execution module, which is used to start the spraying device according to the final startup interval and running trajectory after placing the standard substrate at the equipment feeding port, and make the substrate run back and forth on the equipment to carry out foreign matters on the roller surface and eliminate roller marks; A standby cleaning module, which is used to start the standby cleaning mode when the equipment is planned to standby for a long time, that is, more than 2 hours, set the spraying / conveying interval time, and make the substrate automatically run on the conveying surface at the feeding end or discharging end of the equipment according to the program set time to prevent the formation of roller marks.

[0071] It should be noted that this system corresponds to the above method. All implementation manners in the above method embodiments are applicable to this embodiment and can also achieve the same technical effects.

[0072] An embodiment of the present invention further provides a computing device, including: a processor and a memory storing a computer program. When the computer program is run by the processor, it executes the method as described above. All implementation manners in the above method embodiments are applicable to this embodiment and can also achieve the same technical effects.

[0073] An embodiment of the present invention further provides a computer-readable storage medium storing instructions. When the instructions are run on a computer, the computer is made to execute the method as described above. All implementation manners in the above method embodiments are applicable to this embodiment and can also achieve the same technical effects.

[0074] The above are the preferred implementation manners of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle described in the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A control method for wet roller printing of a glass substrate, characterized in that: The method comprises: A program is set up to simulate the behavior of cat groups, and the final start-up interval of the sprinkler device and the running trajectory of the standard substrate are explored and determined in the parameter space through the search, tracking and memory mechanisms; During the activation of the sprinkler, components not directly associated with the sprinkler, including heating elements, remain off; Put a standard substrate into the equipment inlet, start the spray device according to the final start interval and running track, and make the substrate run back and forth on the equipment to remove foreign matter on the roller surface and eliminate roller marks; When the equipment is planned to be in standby for a long time, that is, more than 2 hours, start the standby cleaning mode, set the spray / conveying interval time, so that the substrate is conveyed on the feeding end or the discharging end of the equipment, and runs automatically according to the program setting time to prevent the formation of roller marks.

2. The control method for wet roller printing of a glass substrate according to claim 1, characterized in that: A program is set up to simulate the behavior of cat groups. Through the search, tracking and memory mechanisms, the final start-up interval of the sprinkler device and the running trajectory of the standard substrate are explored and determined in the parameter space, including: Determine the range of the spray device startup interval and determine the parameters of the standard substrate running trajectory, including speed, acceleration and running path; Set the number of cats in the group and the initial position of each cat, that is, the initial combination of the spray device start interval and the substrate running trajectory parameters; Each cat searches near its current location, and during the search, each cat is combined with different parameters; The search, tracking and memory mechanism is repeatedly executed. In each iteration, the position of each cat is updated according to the search result. If the preset number of iterations is reached, the final number combination is determined as the final start-up interval of the spray device and the running trajectory of the standard substrate.

3. The control method for wet roller printing of a glass substrate according to claim 2, characterized in that: Adjust the interval time of the spray / conveyor interval device according to the equipment model, working environment and production requirements to achieve a balance between energy saving and preventing the recurrence of roller marks.

4. The control method for wet roller printing of a glass substrate according to claim 3, characterized in that: The number of standard substrate runs should be set according to the equipment status, production process or roller mark removal requirements. Under normal circumstances, the standard substrate is run back and forth in the equipment once.

5. The control method for wet roller printing of a glass substrate according to claim 4, characterized in that: When the equipment is planned to be in standby for a long time, that is, more than 2 hours, start the standby cleaning mode, set the spray / conveying interval time, so that the substrate is conveyed on the feeding end or the discharging end of the equipment, and automatically runs according to the program setting time to prevent the formation of roller marks, including: A standby time threshold is preset, i.e. 2 hours; Monitor the running status of the equipment in real time, determine whether the equipment is in standby mode, and record the standby time; When the equipment is in standby mode, if the standby time is ≥ 2 hours, the spray device will be automatically started according to the preset program; The spray device works according to the set parameters, including spray pressure and spray frequency, spraying cleaning liquid into the equipment, and starts the conveying device at the same time, so that the standard substrate runs back and forth inside the equipment according to the preset running path, speed and number of times, so as to keep the equipment clean and prevent the formation of roller marks.

6. The control method for wet roller printing of a glass substrate according to claim 5, characterized in that: During the operation of the spray device and the conveying device, sensors are used to monitor in real time the pressure and flow of the cleaning liquid and the running speed and position parameters of the standard substrate, and to monitor the cleanliness of the roller surface and the inside of the equipment. If the cleaning effect does not reach the preset state, including residual stains on the roller surface or uneven cleaning, the spray pressure, frequency and conveying speed parameters are automatically adjusted according to the monitoring data.

7. A control system for wet roller printing of glass substrates, the system implementing the method according to any one of claims 1 to 6, characterized in that: include: A parameter exploration module is used to set a program to simulate the behavior of cat groups, explore and determine the final start interval of the spray device and the running trajectory of the standard substrate in the parameter space through search, tracking and memory mechanisms; A control module, used to control components not directly associated with the spray device, including a heating element, to remain in a closed state during the start-up of the spray device; The cleaning execution module is used to start the spray device according to the final start-up interval and running track after the standard substrate is placed at the equipment inlet, and to make the substrate run back and forth on the equipment to remove foreign matter on the roller surface and eliminate roller marks; The standby cleaning module is used to start the standby cleaning mode when the equipment is planned to be on standby for a long time, that is, more than 2 hours, and set the spray / conveying interval time so that the substrate is conveyed on the feeding end or the discharging end of the equipment and automatically runs according to the program setting time to prevent the formation of roller marks.

8. A computing device, characterized in that include: one or more processors; A storage device for storing one or more programs, when the one or more programs are executed by the one or more processors, the one or more processors implement the method as claimed in any one of claims 1 to 6.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a program, which, when executed by a processor, implements the method according to any one of claims 1 to 6.

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