Magnesium oxide spraying compensation adjustment method and device, electronic equipment and storage medium
By setting up a monitoring station and an automatic adjustment system in the silicon steel belt magnesium oxide roller coating equipment, the problem of missing coating during magnesium oxide spraying in silicon steel production is solved, efficient and automatic detection and adjustment are achieved, and product quality is improved.
Patent Information
- Application Number
- CN202510567533.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2025-06-24
AI Technical Summary
During the silicon steel production process, missed coating problems often occur during magnesium oxide spraying, resulting in unstable product quality. The existing technology relies on manual testing and adjustment, which is inefficient and complex.
A magnesium oxide spray compensation adjustment method is adopted. By setting a monitoring station in the silicon steel belt magnesium oxide roller coating equipment, using a camera and a non-contact sensor to detect the missed area in real time, and generating compensation adjustment information based on the spray parameters and missed parameters, and automatically adjusting the spray parameters of the nozzle.
Automatic detection of missed coating areas and automatic adjustment of spray parameters are realized, which significantly improves detection and adjustment efficiency, improves product quality, and solves the hysteresis and complexity of manual detection and adjustment.
Smart Images
Figure CN120190099A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of silicon steel production. Specifically, it relates to a method, device, electronic device and storage medium for compensating and adjusting magnesium oxide spraying. Background Technique
[0002] In the silicon steel production industry, the process treatment flow is a key factor affecting the quality and performance of products. Core processes such as normalizing pickling, cold rolling, alkali washing, decarburizing annealing, magnesium oxide coating, and high-temperature annealing are closely linked and indispensable. Especially in the magnesium oxide coating step, by coating a uniform magnesium oxide coating on the surface of the silicon steel strip, it is possible to prevent the silicon steel strip from sticking during the high-temperature annealing stage and to form a good magnesium silicate bottom layer.
[0003] Currently, the commonly used coating treatment method in the industry is to roll-coat the surface of the continuously conveyed silicon steel strip with the help of an array of magnesium oxide coating nozzles in combination with a coating roll group. However, in the actual production process, the problem of magnesium oxide missing coating is relatively common, usually presented as missing coating lines distributed along the conveying direction of the silicon steel strip. If such problems are not detected and properly handled in a timely manner, it will lead to serious product quality defects and cause significant economic losses to the enterprise.
[0004] After analysis, the main cause of the missing coating phenomenon is the deviation of the flow rate or pressure of the nozzle, resulting in uneven distribution of the magnesium oxide coating liquid sprayed onto the coating roll. Currently, for this problem, it mainly relies on manual detection means, and then the nozzle is repeatedly adjusted. However, this method has obvious drawbacks. The lag of detection and adjustment is relatively large, and the adjustment process is cumbersome and complex, which is difficult to meet the requirements of modern production for high efficiency and precision. There is an urgent need for technical improvement to improve production efficiency and product quality.
[0005] In response to the above problems, there is currently no effective technical solution. Summary of the Invention
[0006] The purpose of the present application is to provide a method, device, electronic device and storage medium for compensating and adjusting magnesium oxide spraying to solve the problems of lag and complexity in manual detection and adjustment.
[0007] In a first aspect, the present application provides a method for compensating and adjusting magnesium oxide spraying, which is applied to a magnesium oxide roll coating device for silicon steel strips. The magnesium oxide roll coating device for silicon steel strips includes a monitoring station arranged at the rear stage of the coating station. The monitoring station includes a camera and a non-contact sensor arranged at the rear stage of the camera. The coating station includes a plurality of nozzles arranged in an array along the width of the silicon steel strip. The method includes the following steps: S1. Based on the camera, real-time image information of the surface of the silicon steel strip is obtained, and it is judged whether there is a missing coating area; S2. When there is an uncoated area, enable the non-contact sensor to continuously scan the surface of the silicon steel strip to obtain the uncoated parameter information of each uncoated area; S3. Obtain the injection parameter information of each current nozzle; S4. Generate compensation adjustment information according to the injection parameter information and the uncoated parameter information; S5. Based on the compensation adjustment information, compensate and adjust the injection parameter information of the nozzle.
[0008] The magnesium oxide spraying compensation adjustment method of the present application obtains the uncoated information by setting up a monitoring station, generates compensation adjustment information according to the uncoated information and the nozzle information, and adjusts the injection parameters of the nozzle based on the compensation adjustment information, realizing the automatic detection of the uncoated area and the automatic adjustment of the spraying parameters, greatly improving the detection and adjustment efficiency, improving the product quality, and solving the problems of hysteresis and complexity of manual detection and adjustment.
[0009] In the magnesium oxide spraying compensation adjustment method, the injection parameter information includes nozzle position information, flow rate information, injection angle information, and injection range information, and the uncoated parameter information includes the thickness information and uncoated position information of the uncoated area.
[0010] By clarifying these measurable parameters, it makes the compensation adjustment based on data analysis and calculation possible, overcomes the hysteresis and inaccuracy of manual adjustment, and improves the adjustment efficiency and spraying quality.
[0011] In the magnesium oxide spraying compensation adjustment method, the compensation adjustment information includes flow rate adjustment parameters; Step S4 includes: S41. Construct an injection parameter information matrix and an uncoated parameter information matrix according to the injection parameter information and the uncoated parameter information. The injection parameter information matrix includes the position information, flow rate information, injection angle information, and injection range information of each nozzle, and the uncoated parameter information matrix includes the thickness information and uncoated position information of each uncoated area; S42. Based on the nozzle position information and the uncoated position information, calculate the distance between each nozzle and each uncoated area to obtain a distance matrix; S43. According to the distance matrix, determine the set of nozzles that affect each uncoated area, and calculate the influence weight of each nozzle. The influence weight is inversely proportional to the distance; S44. According to the flow rate information, injection angle information, injection range information, and influence weight of each nozzle in the nozzle set, calculate the unit spraying component coefficient of each nozzle for the uncoated area; S45. According to the thickness information of the uncoated area and the unit spraying component coefficient of each nozzle for the uncoated area, calculate the flow rate adjustment parameters of each nozzle.
[0012] The above processing method combines the spray parameter information and the missed coating parameter information, establishes a correlation model between the two, calculates the accurate flow adjustment amount, and solves the technical problem of how to generate effective compensation adjustment information based on multi-source information.
[0013] The described magnesium oxide spraying compensation adjustment method, wherein step S45 includes: S451. Establish a thickness function based on the flow information, flow adjustment parameters, unit spraying component coefficient, thickness information of the spray nozzles corresponding to each missed coating area, and the preset target thickness information; S452. Calculate and obtain the flow adjustment parameters based on the thickness function according to the principle of minimum flow or the principle of minimum flow standard deviation.
[0014] The described magnesium oxide spraying compensation adjustment method, wherein the magnesium oxide roller coating equipment for silicon steel strips further includes a supplementary coating station arranged at the rear stage of the monitoring station, and the supplementary coating station includes a plurality of supplementary coating spray nozzles and a second coating roller group; The method further includes the steps: S6. Generate supplementary coating control information according to the missed coating parameter information; S7. Control the spraying of the supplementary coating spray nozzles according to the supplementary coating control information to cooperate with the second coating roller group to perform supplementary coating treatment on the silicon steel strip.
[0015] The described magnesium oxide spraying compensation adjustment method, wherein the supplementary coating control information includes supplementary coating flow information, supplementary coating position information, supplementary coating duration information, and supplementary coating spraying range information.
[0016] The described magnesium oxide spraying compensation adjustment method, wherein the supplementary coating station further includes a horizontal driving device for adjusting the horizontal position of the supplementary coating spray nozzles according to the supplementary coating position information.
[0017] In a second aspect, the present application further provides a magnesium oxide spraying compensation adjustment device, which is applied in the magnesium oxide roller coating equipment for silicon steel strips. The magnesium oxide roller coating equipment for silicon steel strips includes a monitoring station arranged at the rear stage of the coating station. The monitoring station includes a camera and a non-contact sensor arranged at the rear stage of the camera. The coating station includes a plurality of spray nozzles arranged in an array along the width of the silicon steel strip. The device includes: A leak detection module for obtaining the image information on the surface of the silicon steel strip in real time based on the camera and judging whether there is a missed coating area; A missed coating parameter acquisition module for enabling the non-contact sensor to continuously scan the surface of the silicon steel strip to obtain the missed coating parameter information of each missed coating area when there is a missed coating area; A spray parameter acquisition module for obtaining the spray parameter information of each current spray nozzle; An adjustment parameter generation module, configured to generate compensation adjustment information according to the injection parameter information and the missing coating parameter information; A compensation adjustment module, configured to compensate and adjust the injection parameter information of the nozzle based on the compensation adjustment information.
[0018] The magnesium oxide spraying compensation adjustment device of the present application obtains the missing coating information by setting a monitoring station, generates compensation adjustment information according to the missing coating information and the nozzle information, and adjusts the injection parameters of the nozzle based on the compensation adjustment information, realizing the automatic detection of the missing coating area and the automatic adjustment of the spraying parameters, greatly improving the detection and adjustment efficiency, improving the product quality, and solving the problems of lag and complexity in manual detection and adjustment.
[0019] In a third aspect, the present application further provides an electronic device, including a processor and a memory, where the memory stores computer-readable instructions, and when the computer-readable instructions are executed by the processor, the steps in the method provided in the first aspect above are run.
[0020] In a fourth aspect, the present application further provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the steps in the method provided in the first aspect above are run.
[0021] As can be seen from the above, the present application provides a magnesium oxide spraying compensation adjustment method, device, electronic device and storage medium. Among them, the magnesium oxide spraying compensation adjustment method of the present application obtains the missing coating information by setting a monitoring station, generates compensation adjustment information according to the missing coating information and the nozzle information, and adjusts the injection parameters of the nozzle based on the compensation adjustment information, realizing the automatic detection of the missing coating area and the automatic adjustment of the spraying parameters, greatly improving the detection and adjustment efficiency, improving the product quality, and solving the problems of lag and complexity in manual detection and adjustment. Description of the Drawings
[0022] Figure 1 It is a flowchart of the magnesium oxide spraying compensation adjustment method provided by some embodiments of the present application.
[0023] Figure 2 It is a flowchart of the magnesium oxide spraying compensation adjustment method provided by some other embodiments of the present application.
[0024] Figure 3 It is a schematic structural diagram of a magnesium oxide roll coating device for silicon steel strips in some embodiments.
[0025] Figure 4 It is a schematic structural diagram of a magnesium oxide roll coating device for silicon steel strips in some other embodiments.
[0026] Figure 5Schematic structural diagram of the magnesium oxide spraying compensation adjustment device provided by some embodiments of the present application.
[0027] Figure 6 Schematic structural diagram of the magnesium oxide spraying compensation adjustment device provided by some other embodiments of the present application.
[0028] Figure 7 Schematic structural diagram of the electronic device provided by the embodiment of the present application.
[0029] Reference numerals: 101, coating station; 102, monitoring station; 103, supplementary coating station; 1011, spray pipe; 1012, first coating roller group; 1021, camera; 1022, non-contact sensor; 1031, supplementary coating spray pipe; 1032, second coating roller group; 201, leak detection module; 202, uncoated parameter acquisition module; 203, spraying parameter acquisition module; 204, adjustment parameter generation module; 205, compensation adjustment module; 206, supplementary coating parameter setting module; 207, supplementary coating control module; 301, processor; 302, memory; 303, communication bus. Detailed implementation manners
[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and illustrated herein can be arranged and designed in various different configurations. Therefore, the detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application claimed, but merely represents selected embodiments of the present application. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.
[0031] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of the present application, the terms "first", "second", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.
[0032] In a first aspect, please refer to Figures 1 - 4 , some embodiments of the present application provide a magnesium oxide spraying compensation adjustment method, which is used in a magnesium oxide roller coating device for silicon steel strips. The magnesium oxide roller coating device for silicon steel strips includes a monitoring station 102 arranged at the rear stage of the coating station 101. The monitoring station 102 includes a camera 1021 and a non-contact sensor 1022 arranged at the rear stage of the camera 1021. The coating station 101 includes a plurality of spray pipes 1011 arranged in an array along the width of the silicon steel strip. The method includes the following steps: S1. Based on the image information of the surface of the silicon steel strip obtained in real time by the camera 1021, determine whether there is an uncoated area; S2. When there is an uncoated area, enable the non-contact sensor 1022 to continuously scan the surface of the silicon steel strip to obtain the uncoated parameter information of each uncoated area; S3. Obtain the spraying parameter information of each current nozzle 1011; S4. Generate compensation adjustment information according to the spraying parameter information and the uncoated parameter information; S5. Compensate and adjust the spraying parameter information of the nozzle 1011 based on the compensation adjustment information.
[0033] Specifically, the magnesia spraying compensation adjustment method of the embodiment of the present application aims to solve the problem of uncoated areas caused by uneven spraying of the nozzle 1011 during the magnesia roll coating process of the silicon steel strip, and overcome the disadvantages of the prior art relying on manual detection and low adjustment efficiency. A monitoring station 102 is arranged downstream of the coating station 101 of the magnesia roll coating equipment for the silicon steel strip to detect the coating effect. Among them, the monitoring station 102 is equipped with a camera 1021 for initially discovering uncoated areas, and a non-contact sensor 1022 is arranged behind it for detailed measurement of the discovered uncoated areas. The coating station 101 is equipped with a plurality of nozzles 1011 and a first coating roller group 1012 for cooperating with the nozzles 1011 to roll coat the surface of the silicon steel strip, and these nozzles 1011 are the objects to be adjusted.
[0034] It should be noted that the uncoated area refers to the area where the layer thickness is less than the expected value, that is, it includes the area where no coating is performed and the area where the coating is too thin.
[0035] More specifically, in step S1, the surface image of the silicon steel strip is obtained by the camera 1021 for visual detection of uncoated areas. In step S2, after the camera 1021 discovers an uncoated area, the non-contact sensor 1022 is started to accurately measure the uncoated area and obtain the specific parameters of the uncoated area. In step S3, the working state parameters of the current nozzle 1011 are obtained. Step S4 is the core calculation link, which combines the detected uncoated data with the current state of the nozzle 1011 to calculate how to adjust the nozzle 1011. For example, according to the thickness deviation information of the uncoated area and the current flow rate information of each nozzle 1011, calculate how much the flow rate of which nozzles 1011 needs to be adjusted, and generate a flow rate adjustment parameter as the compensation adjustment information. In step S5, the calculated adjustment instruction is executed to change the spraying state of the nozzle 1011, thereby correcting the uncoated area.
[0036] It should be noted that the subsequent station refers to the next stage of the station arranged along the conveying direction of the silicon steel strip.
[0037] More specifically, the processing procedure of the magnesium oxide spraying compensation adjustment method according to the embodiments of the present application is as follows: The silicon steel strip is sprayed with magnesium oxide coating through a plurality of spray nozzles 1011 arranged in an array at the coating station 101, and then roll-coated by a roll coating group. Subsequently, the silicon steel strip enters the monitoring station 102 provided at the subsequent stage of the coating station 101. At the monitoring station 102, the camera 1021 captures the image of the surface of the silicon steel strip in real time. The image processing system analyzes the image information to determine whether there is an area with insufficient magnesium oxide coating on the surface of the silicon steel strip, that is, an uncoated area. Once an uncoated area is detected, the system will activate a non-contact sensor 1022, such as a laser thickness gauge, an optical profiler, an infrared matrix sensor or an ultrasonic sensor, to continuously scan these uncoated areas and accurately measure parameters such as the size, position or thickness of the uncoated areas. At the same time, the system obtains the spraying parameters of each spray nozzle 1011 at the current coating station 101, such as flow rate, pressure or spraying angle, etc. Then, according to the uncoated parameter information obtained by the sensor and the spraying parameter information of the current spray nozzle 1011, compensation adjustment information is generated through calculation. The compensation adjustment information includes adjustment instructions for the spraying parameters of the spray nozzle 1011. Finally, the system automatically adjusts the spraying parameters of the corresponding spray nozzle 1011 at the coating station 101 according to the generated compensation adjustment information, such as increasing the flow rate of a specific spray nozzle 1011 or adjusting the spraying angle, to compensate for the uncoated area and improve the coating uniformity. Thus, through real-time monitoring, accurate measurement and automatic adjustment, this method solves the problems of lag and complexity in manual detection and adjustment, and improves the quality and production efficiency of the magnesium oxide coating.
[0038] More specifically, the image processing unit is connected to the rear stage of the camera 1021, and can process the image of the surface of the silicon steel strip after roll coating collected. The image processing unit can perform grayscale processing on the image of the surface of the silicon steel strip, and then judge whether there is an uncoated area according to the grayscale threshold analysis method. The grayscale threshold analysis method belongs to the existing technology of image classification, so it will not be elaborated here.
[0039] More specifically, the spraying parameter information can be obtained based on relevant sensors set in the silicon steel strip magnesium oxide roll coating equipment or directly read from the control system of the silicon steel strip magnesium oxide roll coating equipment.
[0040] It should be noted that the magnesium oxide spraying compensation adjustment method according to the embodiments of the present application is a continuously executed process, that is, after the adjustment of the spray nozzle 1011 is performed in step S5, the silicon steel strip magnesium oxide roll coating equipment will use the magnesium oxide spraying compensation adjustment method according to the embodiments of the present application again to verify or monitor whether the spray nozzle 1011 is adjusted in place to avoid the continuous generation of uncoated areas.
[0041] The magnesium oxide spraying compensation adjustment method according to the embodiments of the present application obtains the missing coating information by setting the monitoring station 102, generates compensation adjustment information based on the missing coating information and the information of the spray nozzle 1011, and adjusts the spraying parameters of the spray nozzle 1011 based on the compensation adjustment information, realizing the automatic detection of the missing coating area and the automatic adjustment of the spraying parameters, greatly improving the detection and adjustment efficiency, improving the product quality, and solving the problems of lag and complexity in manual detection and adjustment.
[0042] In some preferred embodiments, the spraying parameter information includes the spray nozzle position information, flow rate information, spraying angle information, and spraying range information, and the missing coating parameter information includes the thickness information and the missing coating position information of the missing coating area.
[0043] Specifically, the spraying parameter information is used to describe the spraying state and spatial position of the spray nozzle 1011. The spray nozzle position information determines the spatial coordinates of the spray nozzle 1011 on the coating station 101. The flow rate information represents the volume or mass of the magnesium oxide coating ejected from the spray nozzle 1011 per unit time. The spraying angle information describes the direction of the spray jet relative to the axis of the spray nozzle 1011. The spraying range information represents the size of the coverage area of the spray jet on the target surface.
[0044] More specifically, the missing coating parameter information is used to describe the geometric characteristics and position of the missing coating area on the surface of the silicon steel strip. The thickness information of the missing coating area represents the amount of the missing magnesium oxide coating relative to the target thickness in the missing coating area. The missing coating position information determines the spatial coordinates of the missing coating area on the surface of the silicon steel strip. These parameter information provide a quantitative data basis for subsequent compensation adjustment.
[0045] More specifically, when there is a missing coating area, the non-contact sensor 1022 scans these areas to obtain parameter information such as the width, length, thickness, and position of the missing coating area. At the same time, the position, flow rate, spraying angle, and spraying range and other parameter information of each current spray nozzle 1011 are obtained. Thus, taking these specific spraying parameter information and missing coating parameter information as inputs, compensation adjustment information is generated. For example, the relative distance between the spray nozzle 1011 and the missing coating area can be calculated according to the spray nozzle position information and the missing coating position information, and combined with the flow rate, spraying angle, and spraying range information of the spray nozzle 1011, as well as the size and thickness information of the missing coating area, it is calculated which parameters of which spray nozzles 1011 need to be adjusted and the amount of adjustment. By clarifying these measurable parameters, it makes the compensation adjustment based on data analysis and calculation possible, overcomes the lag and inaccuracy of manual adjustment, and improves the adjustment efficiency and spraying quality.
[0046] In some preferred embodiments, the compensation adjustment information includes flow rate adjustment parameters; Step S4 includes: S41. Construct a jet parameter information matrix and a missed coating parameter information matrix based on the jet parameter information and the missed coating parameter information. The jet parameter information matrix includes the position information, flow rate information, jet angle information, and jet range information of each nozzle 1011. The missed coating parameter information matrix includes the thickness information and the missed coating position information of each missed coating area. S42. Based on the nozzle position information and the missed coating position information, calculate the distance between each nozzle 1011 and each missed coating area to obtain a distance matrix. S43. According to the distance matrix, determine the set of nozzles that have an impact on each missed coating area, and calculate the impact weight of each nozzle 1011. The impact weight is inversely proportional to the distance. S44. According to the flow rate information, jet angle information, jet range information, and impact weight of each nozzle 1011 in the set of nozzles, calculate the unit spraying component coefficient of each nozzle 1011 for the missed coating area. S45. According to the thickness information of the missed coating area and the unit spraying component coefficient of each nozzle 1011 for the missed coating area, calculate the flow rate adjustment parameter of each nozzle 1011.
[0047] Specifically, in step S41, a jet parameter information matrix and a missed coating parameter information matrix are constructed to structurally process the parameters of the nozzle 1011 and the missed coating area, facilitating subsequent calculations.
[0048] More specifically, in step S42, the distance between the nozzle 1011 and the missed coating area is calculated to quantify their spatial relationship.
[0049] More specifically, in step S43, the set of nozzles having an impact is determined based on the distance and the impact weight is calculated to ensure that the calculation focuses on the relevant nozzles 1011 and improve the calculation efficiency.
[0050] More specifically, in step S44, the unit spraying component coefficient is calculated to evaluate the spraying contribution of the nozzle 1011 to the missed coating area.
[0051] More specifically, in step S45, the flow rate adjustment parameter is calculated to determine the flow rate change amount of each nozzle 1011 and achieve compensation for the missed coating area.
[0052] More specifically, the above processing method combines the spray parameter information and the missed coating parameter information, establishes a correlation model between the two, calculates the accurate flow rate adjustment amount, and solves the technical problem of how to generate effective compensation adjustment information based on multi-source information. First, in step S41, the parameters of the nozzle 1011 (position, flow rate, angle, range) and the parameters of the missed coating area (width, length, thickness, position) are respectively sorted into matrix forms. Then, in step S42, the distance between the nozzle 1011 and the missed coating area is calculated using the position information of the nozzle 1011 and the missed coating area to form a distance matrix. Thus, in step S43, the nozzles 1011 that actually affect each missed coating area are selected according to the distance matrix, and the influence weights of these nozzles 1011 on the corresponding missed coating areas are calculated. The closer the distance, the greater the weight. Then, in step S44, by combining the spraying characteristics (flow rate, angle, range) of the nozzle 1011 itself and its influence weight, the spraying contribution of each nozzle 1011 to a specific missed coating area under unit flow rate is calculated, that is, the unit spraying component coefficient. Finally, in step S45, according to the thickness information that needs to be compensated for the missed coating area and the unit spraying component coefficients of each nozzle 1011, the flow rate adjustment parameters that each nozzle 1011 needs to perform are calculated, so as to guide the nozzle 1011 to adjust the flow rate, achieve compensation for the missed coating area, and improve the spraying uniformity.
[0053] In some preferred embodiments, step S43 includes: S431. According to the distance matrix, select the nozzles 1011 whose distance from the center of the missed coating area is less than a preset distance threshold to form a preselected nozzle set; S432. Calculate the influence factors of each nozzle 1011 in the preselected nozzle set. The influence factors are determined by the distance factor and the angle factor. The distance factor is inversely proportional to the distance from the nozzle 1011 to the center of the missed coating area, and the angle factor is directly proportional to the cosine value of the included angle between the spraying direction of the nozzle 1011 and the line connecting the center of the missed coating area; S433. Normalize the influence factors of each nozzle 1011 to obtain the influence weights of each nozzle 1011.
[0054] Specifically, the above processing method refines the process of determining the nozzle set that affects each missed coating area based on the distance matrix and calculating the influence weight, and solves the problem that calculating the influence weight of nozzle 1011 only based on distance fails to comprehensively reflect the actual spraying effect. First, by setting a distance threshold, nozzles 1011 that may affect the missed coating area in terms of spatial position are quickly identified to form a preliminary nozzle set. Further, for each nozzle 1011 in this preliminary set, a comprehensive influence factor is calculated, which takes into account both the distance relationship between the nozzle 1011 and the missed coating area and the angular relationship between the spraying direction of the nozzle 1011 and the position of the missed coating area. The closer the distance, the larger the distance factor; the more the spraying direction points to the missed coating area, the larger the angular factor. By combining the distance factor and the angular factor, an influence factor that can better reflect the actual spraying coverage ability is obtained. Finally, the calculated influence factor is normalized to convert it into a weight value, so that the influence degrees of different nozzles 1011 can be compared and applied on a unified scale. Thereby, the accuracy of calculating the influence weight of nozzle 1011 is improved, providing a more reliable basis for subsequent flow rate adjustment.
[0055] It should be noted that the above processing method needs to perform independent calculations for different missed coating areas to obtain the nozzles 1011 that affect different missed coating areas and the corresponding influence weights.
[0056] In some preferred embodiments, the compensation adjustment information further includes a spraying range adjustment parameter; Between step S44 and step S45, it further includes: S4A. Determine whether the maximum unit spraying component corresponding to each missed coating area is greater than a preset component threshold. If so, execute step S45; otherwise, simulate and adjust the spraying range information of one or two nozzles 1011 with the largest influence weight corresponding to the missed coating area until the calculated maximum unit spraying component is greater than the preset component threshold. Then, use the difference between the finally adjusted spraying range information and the original spraying range information as the spraying range adjustment parameter, and then execute step S45.
[0057] Specifically, the above processing method adds a judgment and adjustment step. This step checks each uncoated area to determine whether the unit spraying component of the nozzle 1011 that contributes the most to this area reaches a preset minimum requirement. The unit spraying component represents the spraying contribution of the nozzle 1011 to the uncoated area under unit flow. If this value is too low, even if the flow rate is increased significantly, it may be difficult to effectively compensate the uncoated area to reach the target thickness. Therefore, when the unit spraying component is insufficient, this solution does not directly calculate the flow rate, but first adjusts the spraying range of the nozzle 1011 that has the greatest impact on this uncoated area. By adjusting the spraying range, the spraying coverage characteristics of the nozzle 1011 can be changed, thereby increasing its unit spraying component for the uncoated area. This adjustment process continues until the maximum unit spraying component reaches the preset threshold. Among them, the process of obtaining the unit spraying component is a simulation calculation process, and its specific obtaining method can adopt a process similar to step S44, that is: according to the flow rate information, spraying angle information, simulated adjusted spraying range information and influence weight of each nozzle 1011 in the nozzle set, simulate and calculate the unit spraying component coefficient of the corresponding nozzle 1011 for the uncoated area. After completing the adjustment of the spraying range, calculate the flow rate adjustment parameter according to the updated spraying parameters (including the adjusted spraying range). The difference between the finally adjusted spraying range information and the original spraying range information is recorded as the spraying range adjustment parameter and used as part of the compensation adjustment information.
[0058] More specifically, the above processing method ensures the effectiveness of subsequent flow rate adjustment by performing simulated adjustment of the spraying range before flow rate adjustment, improves the effect of compensation spraying, and can more reliably make the uncoated area reach the target thickness.
[0059] In some preferred embodiments, step S45 includes: S451. Establish a thickness function based on the flow rate information, flow rate adjustment parameter, unit spraying component coefficient, thickness information and preset target thickness information of the nozzle 1011 corresponding to each uncoated area; S452. Calculate and obtain the flow rate adjustment parameter according to the thickness function based on the principle of minimum flow rate or the principle of minimum flow rate standard deviation.
[0060] Specifically, establishing the thickness function involves correlating the current flow rate of the nozzle 1011, the required flow rate adjustment, the spraying contribution ability of the nozzle 1011 to the uncoated area, the actual thickness of the silicon steel strip surface, and the target thickness to be achieved to form a mathematical model. This model quantifies the relationship between the spraying effect and the nozzle flow rate adjustment. Calculating the flow rate adjustment parameter is achieved by solving this thickness function. The solving process can adopt the principle of minimizing the flow rate, aiming to reduce the total consumption of the magnesium oxide coating on the premise of meeting the compensation requirements. Or adopt the principle of minimizing the standard deviation of the flow rate, aiming to make the flow rate distribution of the nozzles 1011 participating in the compensation more uniform and improve the stability and consistency of spraying.
[0061] More specifically, the thickness function can be expressed as a correlation function between the adjusted thickness information of the uncoated area and the adjusted flow rate information of each sprinkler. The target thickness information is the lower limit value of the adjusted thickness information, that is, the first constraint condition of the first thickness target information. Step S452 can configure an appropriate objective function to solve the thickness function according to the principle of minimizing the flow rate or the principle of minimizing the standard deviation of the flow rate to obtain the optimal flow rate adjustment parameter. For example, the thickness function can be expressed as the following formula: (1) Where, H i is the output thickness of the thickness function of the i-th uncoated area, H p is the target thickness information, h i is the thickness information of the i-th uncoated area, q k is the flow rate information of the k-th sprinkler, △q k is the flow rate adjustment parameter of the k-th sprinkler and is a positive value, α i，k is the unit spraying component coefficient of the k-th sprinkler for the i-th uncoated area (for the nozzle 1011 that does not contribute to the corresponding uncoated area, its value can be 0), and n is the total number of sprinklers. Since there is a first coating roller group 1012 at the roller coating station, formula (1) is set as so that the thickness of the uncoated area can be processed as H p . Thus, formula (1) clarifies the influence of the change in flow rate information on the thickness information of the uncoated area. Among them, the adjustable variable in formula (1) is △q k , and both the principle of minimizing the flow rate and the principle of minimizing the standard deviation of the flow rate are calculated based on the flow rate. Therefore, formula (1) can be transformed into: (2) Where, Q k represents the adjusted flow rate of the k-th sprinkler, satisfying Q k =q k +△q k; For each uncoated area, an equation (2) is configured; therefore, step S452 can solve for the optimal solution of the optimal equation (2) based on the principle of minimizing flow rate or the principle of minimizing the standard deviation of flow rate, and then according to Q k Establish a target to solve for the optimal solution of the optimal equation (2), and then determine △q according to Q k Determine △q k , for example, the total superimposed flow rate of all nozzles 1011 is Q 总， Satisfy: Q 总 = (3) The target of step S452 is to minimize Q on the premise that all H i Are all greater than H p , and then obtain all Q 总 To calculate and obtain △q k . Thus, a set of specific flow rate adjustment values can be obtained for subsequent compensation and adjustment of the spraying parameters of the nozzle 1011. k .
[0062] It should be noted that in other embodiments, the relevant rules in step S452 may not be set, but △q may be directly incremented k , until it satisfies , then △q can be determined k , thereby realizing the rapid setting of the flow rate adjustment parameter.
[0063] In some preferred embodiments, as Figure 4 Shown, the silicon steel strip magnesium oxide roller coating equipment further includes a supplementary coating station 103 arranged at the rear stage of the monitoring station 102, and the supplementary coating station 103 includes a plurality of supplementary coating nozzles 1031 and a second roller group 1032; The method further includes the steps of: S6. Generate supplementary coating control information according to the uncoated parameter information; S7. Control the spraying of the supplementary coating nozzle 1031 according to the supplementary coating control information to cooperate with the second roller group 1032 to perform supplementary coating treatment on the silicon steel strip.
[0064] Specifically, after detecting the uncoated area and obtaining its parameter information, the silicon steel strip continues to move downstream to reach the supplementary coating station 103. The supplementary coating station 103 is arranged downstream of the monitoring station 102 and is equipped with a plurality of supplementary coating nozzles 1031 and a second roller group 1032.
[0065] More specifically, step S6 generates coating compensation control information based on the coating omission parameter information obtained in step S2. The coating compensation control information includes parameters required to guide the coating compensation operation, such as the position where the coating compensation nozzle 1031 needs to spray, the spraying amount, the spraying duration, etc. Step S7 controls the coating compensation nozzle 1031 to spray according to the generated coating compensation control information, and cooperates with the second coating roller group 1032 to perform coating compensation treatment on the coating omission area on the surface of the silicon steel strip. The coating compensation nozzle 1031 is responsible for spraying the magnesium oxide coating onto the area that needs to be compensated, and the second coating roller group 1032 assists in evenly coating the sprayed coating on the surface of the silicon steel strip to ensure that the coating omission area is effectively covered and repaired. The magnesium oxide spraying compensation adjustment method of the embodiment of the present application can directly repair existing defects, make up for the deficiencies of the previous-stage adjustment, ensure the coating quality of the silicon steel strip surface, improve the processing ability of product quality defects, and solve the problem that the formed coating omission area cannot be completely and effectively repaired only by adjusting the previous-stage nozzle 1011.
[0066] It should be noted that step S6 can be executed after step S5, or can be started at the same time as step S3. In the embodiment of the present application, the latter is preferred.
[0067] In some preferred embodiments, the coating compensation control information includes coating compensation flow information, coating compensation position information, coating compensation duration information, and coating compensation spraying range information.
[0068] Specifically, the coating compensation flow information is used to set the amount of magnesium oxide coating sprayed by the coating compensation nozzle 1031, thereby controlling the volume of the coating sprayed per unit time. The coating compensation position information is used to determine the area where the coating compensation nozzle 1031 needs to perform coating compensation. For example, it can indicate the specific position of the coating omission area in the width direction of the silicon steel strip, thereby guiding the coating compensation nozzle 1031 to move to the target position. The coating compensation duration information is used to control the spraying time length of the coating compensation nozzle 1031, thereby controlling the spraying coverage range along the length direction of the silicon steel strip. The coating compensation spraying range information is used to control the area size covered by the spraying of the coating compensation nozzle 1031. For example, the spraying angle or spraying pressure can be adjusted, thereby controlling the width of the spraying fan surface. By using these specific control parameters, the spraying behavior of the coating compensation nozzle 1031 can be precisely controlled, so that the coating compensation process can specifically cover the coating omission area and compensate for the deficiency of the magnesium oxide coating. The coating compensation nozzle 1031 sprays according to the coating compensation control information, and at the same time, the second coating roller group 1032 cooperates to perform roller coating, thereby realizing the effective repair of the coating omission area on the surface of the silicon steel strip and improving the coating compensation effect.
[0069] In some preferred embodiments, the coating compensation station 103 further includes a horizontal driving device for adjusting the horizontal position of the coating compensation nozzle 1031 according to the coating compensation position information.
[0070] Specifically, the recoating position information indicates the position of the missed coating area. The horizontal driving device enables the recoating spray pipe 1031 to move to the horizontal position corresponding to the missed coating area, and this processing method improves the positioning accuracy of recoating. Thus, the recoating spray pipe 1031 is accurately positioned above the horizontal position where recoating is required.
[0071] In some preferred embodiments, step S7 includes: After a preset delay, enable the recoating spray pipe 1031 to spray according to the recoating control information to cooperate with the second coating roller group 1032 to perform recoating treatment on the silicon steel strip.
[0072] Specifically, the duration of this delay is determined according to the physical distance between the monitoring station 102 and the recoating station 103 and the conveying speed of the silicon steel strip. The function of the delay is to compensate for the time required for the silicon steel strip to move from the monitoring station 102 to the recoating station 103. By enabling the recoating spray pipe 1031 to spray and the second coating roller group 1032 to cooperate for recoating treatment only after the preset delay ends, it is ensured that the recoating treatment is executed when the missed coating area reaches the recoating station 103, enabling the recoating treatment to act on a specific missed coating area on the silicon steel strip and realizing the spatial correspondence between the recoating treatment and the missed coating area. Thus, the recoating treatment can accurately act on the missed coating area and improve the recoating effect.
[0073] During the actual production process, there may also be a problem of excessive coating thickness on the surface of the silicon steel strip. The main cause of this problem is the wear of the coating roller grooves after long-term use. In the traditional processing method, manual detection and adjustment of the distance between the coating roller and the silicon steel strip are still required; to solve this problem, the method of this application further includes the steps: S8. Determine the thickness deviation according to the maximum thickness and the target thickness of the ultra-thick area, and determine the lifting adjustment information of the first coating roller group 1012 according to the thickness deviation to adjust the roller height of the first coating roller group 1012; Step S1 includes: S11. Based on the camera 1021, obtain the image information on the surface of the silicon steel strip in real time, judge whether there is a missed coating area. If yes, execute step S2; judge whether there is an ultra-thick area. If yes, execute step S8; Specifically, the ultra-thick area refers to the area where the thickness of the magnesium oxide coating on the silicon steel strip is greater than the target thickness; this embodiment can adjust the distance between the coating roller and the silicon steel strip based on the actual thickness deviation situation after the coating roller wears, thereby solving the problem of excessive magnesium oxide coating thickness.
[0074] In the second aspect, please refer to Figure 5 and Figure 6, an embodiment of the present application further provides a magnesium oxide spraying compensation adjustment device, which is applied to a magnesium oxide roll coating device for silicon steel strips. The magnesium oxide roll coating device for silicon steel strips includes a monitoring station 102 arranged at the rear stage of the coating station 101. The monitoring station 102 includes a camera 1021 and a non-contact sensor 1022 arranged at the rear stage of the camera 1021. The coating station 101 includes a plurality of spray nozzles 1011 arranged in an array along the width of the silicon steel strip. The device includes: A leak detection module 201, configured to determine whether there is a missed coating area based on the image information of the surface of the silicon steel strip obtained by the camera 1021 in real time; A missed coating parameter acquisition module 202, configured to enable the non-contact sensor 1022 to continuously scan the surface of the silicon steel strip to obtain the missed coating parameter information of each missed coating area when there is a missed coating area; A spraying parameter acquisition module 203, configured to acquire the spraying parameter information of each current spray nozzle 1011; An adjustment parameter generation module 204, configured to generate compensation adjustment information according to the spraying parameter information and the missed coating parameter information; A compensation adjustment module 205, configured to compensate and adjust the spraying parameter information of the spray nozzle 1011 based on the compensation adjustment information.
[0075] The magnesium oxide spraying compensation adjustment device of the embodiment of the present application obtains the missed coating information by setting the monitoring station 102, generates compensation adjustment information according to the missed coating information and the information of the spray nozzle 1011, and adjusts the spraying parameters of the spray nozzle 1011 based on the compensation adjustment information, realizing the automatic detection of the missed coating area and the automatic adjustment of the spraying parameters, greatly improving the detection and adjustment efficiency, improving the product quality, and solving the problems of lag and complexity of manual detection and adjustment.
[0076] In some preferred embodiments, the magnesium oxide roll coating device for silicon steel strips further includes a supplementary coating station 103 arranged at the rear stage of the monitoring station 102. The supplementary coating station 103 includes a plurality of supplementary coating spray nozzles 1031 and a second coating roller group 1032; The device further includes: A supplementary coating parameter setting module 206, configured to generate supplementary coating control information according to the missed coating parameter information; A supplementary coating control module 207, configured to control the spraying of the supplementary coating spray nozzles 1031 according to the supplementary coating control information to cooperate with the second coating roller group 1032 to perform supplementary coating treatment on the silicon steel strip.
[0077] In some preferred embodiments, the magnesium oxide spraying compensation adjustment device of the embodiment of the present application is used to execute the magnesium oxide spraying compensation adjustment method provided in the first aspect above.
[0078] For the third aspect, please refer to Figure 7, some embodiments of the present application also provide a schematic structural diagram of an electronic device. The present application provides an electronic device, including: a processor 301 and a memory 302. The processor 301 and the memory 302 are interconnected and communicate with each other through a communication bus 303 and / or other forms of connection mechanisms (not marked). The memory 302 stores computer-readable instructions executable by the processor 301. When the electronic device runs, the processor 301 executes the computer-readable instructions to execute the method in any optional implementation manner of the above embodiments.
[0079] In a fourth aspect, embodiments of the present application provide a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, it executes the method in any optional implementation manner of the above embodiments. Among them, the computer-readable storage medium can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (abbreviated as SRAM), electrically erasable programmable read-only memory (abbreviated as EEPROM), erasable programmable read-only memory (abbreviated as EPROM), programmable read-only memory (abbreviated as PROM), read-only memory (abbreviated as ROM), magnetic memory, flash memory, magnetic disk or optical disk.
[0080] In the embodiments provided by the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are only illustrative. For example, the division of the units is only a logical function division, and there may be other division methods in actual implementation. For another example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed couplings or direct couplings or communication connections to each other can be through some communication interfaces. The indirect couplings or communication connections of the devices or units can be in electrical, mechanical or other forms.
[0081] In addition, the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
[0082] Furthermore, in each embodiment of the present application, each functional module may be integrated together to form an independent part, or each module may exist alone, or two or more modules may be integrated to form an independent part.
[0083] In this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.
[0084] The above description is only for the embodiments of the present application and is not intended to limit the protection scope of the present application. For those skilled in the art, the present application may have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A magnesium oxide spraying compensation adjustment method, applied in a silicon steel strip magnesium oxide roller coating equipment, characterized in that: The magnesium oxide roller coating equipment for silicon steel strip comprises a monitoring station arranged at the rear stage of the coating station, the monitoring station comprises a camera and a non-contact sensor arranged at the rear stage of the camera, the coating station comprises a plurality of nozzles arranged in an array along the width of the silicon steel strip, and the method comprises the following steps: S1. Based on the camera, image information of the surface of the silicon steel strip is obtained in real time to determine whether there is a coating leakage area; S2. When there is a coating-missing area, the non-contact sensor is enabled to continuously scan the surface of the silicon steel strip to obtain coating-missing parameter information of each coating-missing area; S3, obtaining the injection parameter information of each current nozzle; S4, generating compensation adjustment information according to the spraying parameter information and the missing coating parameter information; S5. Compensate and adjust the injection parameter information of the nozzle based on the compensation adjustment information.
2. The magnesium oxide spraying compensation adjustment method according to claim 1, characterized in that: The spray parameter information includes nozzle position information, flow rate information, spray angle information and spray range information, and the missing coating parameter information includes thickness information and missing coating position information of the missing coating area.
3. The magnesium oxide spraying compensation adjustment method according to claim 2, characterized in that: The compensation adjustment information includes flow adjustment parameters; Step S4 includes: S41, constructing an injection parameter information matrix and a missing coating parameter information matrix according to the injection parameter information and the missing coating parameter information, wherein the injection parameter information matrix includes position information, flow information, injection angle information and injection range information of each nozzle, and the missing coating parameter information matrix includes thickness information and missing coating position information of each missing coating area; S42, based on the nozzle position information and the coating leakage position information, calculating the distance between each nozzle and each coating leakage area to obtain a distance matrix; S43, according to the distance matrix, determine the nozzle set that has an impact on each coating leakage area, and calculate the impact weight of each nozzle, where the impact weight is inversely proportional to the distance; S44, calculating the unit spray component coefficient of each nozzle for the coating missed area according to the flow information, spray angle information, spray range information and influence weight of each nozzle in the nozzle set; S45, calculating the flow adjustment parameters of each nozzle according to the thickness information of the uncoated area and the unit spraying component coefficient of each nozzle to the uncoated area.
4. The magnesium oxide spraying compensation adjustment method according to claim 3, characterized in that: Step S45 includes: S451, establishing a thickness function according to the flow information, flow adjustment parameters, unit spraying component coefficient, thickness information and preset target thickness information of the nozzle corresponding to each coating leakage area; S452. Calculate and obtain the flow adjustment parameter according to the thickness function based on a flow minimization principle or a flow standard deviation minimization principle.
5. The magnesium oxide spraying compensation adjustment method according to claim 1, characterized in that: The silicon steel strip magnesium oxide roller coating equipment also includes a re-coating station arranged at the rear stage of the monitoring station, and the re-coating station includes a plurality of re-coating spray pipes and a second coating roller group; The method further comprises the steps of: S6, generating re-coating control information according to the missed coating parameter information; S7. Control the re-coating nozzle to spray according to the re-coating control information to cooperate with the second coating roller group to re-coat the silicon steel strip.
6. The magnesium oxide spraying compensation adjustment method according to claim 5, characterized in that: The repainting control information includes repainting flow information, repainting position information, repainting duration information and repainting spraying range information.
7. The magnesium oxide spraying compensation adjustment method according to claim 6, characterized in that: The re-coating station also includes a horizontal driving device for adjusting the horizontal position of the re-coating nozzle according to the re-coating position information.
8. A magnesium oxide spraying compensation adjustment device, used in magnesium oxide roller coating equipment for silicon steel strip, characterized in that: The magnesium oxide roller coating equipment for silicon steel strip includes a monitoring station arranged at the rear stage of the coating station, the monitoring station includes a camera and a non-contact sensor arranged at the rear stage of the camera, the coating station includes a plurality of nozzles arranged in an array along the width of the silicon steel strip, and the device includes: A leak detection module, used to obtain image information of the surface of the silicon steel strip in real time based on the camera to determine whether there is a leaking area; A coating-missing parameter acquisition module is used to enable the non-contact sensor to continuously scan the surface of the silicon steel strip when there is a coating-missing area, so as to obtain coating-missing parameter information of each coating-missing area; The injection parameter acquisition module is used to obtain the injection parameter information of each nozzle at present; An adjustment parameter generating module, used for generating compensation adjustment information according to the spray parameter information and the missing coating parameter information; The compensation adjustment module is used to compensate and adjust the injection parameter information of the nozzle based on the compensation adjustment information.
9. An electronic device, characterized in that: The method comprises a processor and a memory, wherein the memory stores computer-readable instructions. When the computer-readable instructions are executed by the processor, the steps in the method according to any one of claims 1 to 7 are executed.
10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 7 are executed.