Multi-sensing equipment collaborative thickness control system for aluminum plate strip production rolling

Abstract

The invention discloses a multi-sensing equipment collaborative thickness control system for aluminum plate strip production rolling, and relates to the field of metal processing, and the multi-sensing equipment collaborative thickness control system for aluminum plate strip production rolling comprises a rolling preparation verification module, a data acquisition module, a feedback control module and an aluminum plate strip acceptance module. A plurality of modules are integrated, a closed-loop automatic rolling control system is formed, the thickness of an aluminum plate strip is accurately controlled based on real-time monitoring and feedback control, and errors are reduced. Sensing devices which cannot work normally are screened out in advance, it is ensured that the sensing devices can accurately detect and respond at the critical moment, rolling preparation inspection abnormal values of all the sensing devices serve as influence factors to correct real-time rolling evaluation values of all the rolling sub-areas of the aluminum plate strip, and the measurement precision is improved.

Description

Technical Field

[0001] The present invention relates to the field of metal processing, and in particular to a multi-sensor equipment coordinated thickness control system for aluminum plate and strip production and rolling. Background Art

[0002] During the rolling process of aluminum plates, the mechanical properties and temperature of the material will change, affecting the rolling effect. These changes need to be monitored in real time and the rolling parameters need to be adjusted quickly. With the continuous progress of industrialization, the precision requirements for the thickness of aluminum plates and strips have become extremely high, requiring precise automatic control to achieve high-precision aluminum plate and strip production and rolling.

[0003] The prior art, such as the invention patent with announcement number: CN107881426B, is a high-strength aluminum-clad plate and strip and a production method. The high-strength aluminum-clad plate and strip is a composite structure of aluminum strip and steel strip. The chemical composition weight percentage of the steel strip is: C: 0.03-0.06%, 0<Si≤0.005%, Mn: 0.4-0.8%, P≤0.015%, S≤0.005%, Al≤0.005%, N: 0.0062-0.02%, O: 0.006-0.05%, Ca: 0.002-0.004%, Ti: 0.01-0.03%, and the rest is Fe and unavoidable impurities; and at the same time, O+N≥0.013%, 0.5≤(O+N) / (P+S)≤5. The aluminum-clad strip of the present invention has the high strength of steel, with a yield strength of 280-400MPa, a tensile strength of more than 420MPa, and an elongation of more than 28%. It also has good plasticity and cold bending, stamping and other properties as well as the corrosion resistance, heat dissipation and aesthetic characteristics of aluminum. It can be used in the production of radiators, plates, wheels and corrosion-resistant boxes.

[0004] The prior art, such as the invention patent with announcement number: CN107881412B, is a lightweight aluminum-clad plate and a production method thereof, which is a composite structure of aluminum strip and steel strip, and the chemical composition weight percentage of the steel strip is: C: 0.04-0.08%, 0<Si≤0.005%, Mn: 0.9-1.8%, P≤0.015%, S≤0.005%, Al≤0.005%, N: 0.0062-0.02%, O: 0.006-0.05%, Ca: 0.002-0.004%, Ti: 0.01-0.03%, Nb: 0.01-0.03%, and the rest are Fe and unavoidable impurities; at the same time, O+N≥0.013%, and 0.5≤(O+N) / (P+S)≤5. The aluminum-clad plate strip of the present invention has a yield strength of more than 400MPa, a tensile strength of 500-800MPa, and an elongation A50% of more than 18%. It has the strength of steel, good plasticity, and properties such as cold bending and stamping, and has the characteristics of corrosion resistance, heat dissipation, and aesthetics of aluminum. It can be used in the production of radiators, plates, and wheels, and can achieve lightweight design.

[0005] Based on the above scheme, it can be seen that the existing aluminum sheet and strip production and manufacturing technology often only focuses on controlling the production process, and the actual control will be affected by the performance of the device. In actual production, there may be problems of untimely control or poor control quality. Therefore, it is necessary to monitor the sensors and control equipment in the automatic control system of the aluminum sheet and strip production and manufacturing technology. Summary of the invention

[0006] In view of the shortcomings of the prior art, the present invention provides a multi-sensor device coordinated thickness control system for aluminum strip production and rolling. To achieve the above purpose, the present invention is implemented through the following technical solutions: a multi-sensor device coordinated thickness control system for aluminum strip production and rolling, comprising: The rolling preparation verification module is used to start each sensor device for automatic verification processing through the collaborative controller after receiving the aluminum plate and strip production rolling start signal, obtain the automatic verification data of each sensor device and generate the rolling preparation verification result.

[0007] The data acquisition module is used to output a rolling execution signal and start the rolling equipment to carry out the aluminum plate and strip production rolling process when the rolling preparation verification result shows that rolling can be executed. Based on the monitoring of each sensor device, the real-time rolling data of each sub-rolling area of ​​the aluminum plate and strip is obtained.

[0008] The feedback control module generates a real-time rolling evaluation value of each sub-rolling area of ​​the aluminum strip based on the real-time rolling data analysis and processing of each sub-rolling area of ​​the aluminum strip, and adjusts and controls the real-time rolling thickness of each sub-rolling area of ​​the aluminum strip based on the real-time rolling evaluation value of each sub-rolling area of ​​the aluminum strip.

[0009] The aluminum sheet and strip acceptance module is used to mark the aluminum sheet and strip as a finished aluminum sheet and strip after rolling is completed, and to collect the thickness data and apparent quality data of the finished aluminum sheet and strip, thereby analyzing the acceptance results of the aluminum sheet and strip and feeding them back to the control and display terminal.

[0010] As a preferred technical solution, the automatic verification data of each sensor device is obtained, specifically including: After receiving the aluminum strip production rolling start signal, each sensor device is started through the collaborative controller to perform automatic verification processing to obtain automatic verification data of each sensor device. The automatic verification data of each sensor device specifically includes response time, data transmission rate, data transmission bandwidth, working power and resolution.

[0011] As a preferred technical solution, the automatic verification data of each sensor device is obtained and the rolling preparation verification result is generated. The specific process is: Based on the automatic verification data of each sensor device, a set of standard values ​​of automatic verification data of each sensor device is extracted from the database, including standard values ​​of response time, data transmission rate, data transmission bandwidth, working power and resolution. Based on the automatic verification data and dynamic verification data standard values ​​of each sensor device, the rolling preparation inspection abnormal values ​​of each sensor device are processed and analyzed to generate.

[0012] Based on the rolling preparation inspection abnormal value of each sensor device, it is compared with the rolling preparation inspection abnormal value threshold of each sensor device stored in the database. If the rolling preparation inspection abnormal value of a certain sensor device is greater than or equal to the rolling preparation inspection abnormal value threshold of the sensor device, the rolling preparation inspection result of the sensor device is judged as rolling cannot be executed, and an early warning is issued.

[0013] As a preferred technical solution, when the rolling preparation check result is that rolling can be executed, a rolling execution signal is output, which specifically includes: When the rolling preparation inspection abnormal values ​​of each sensor device are less than the rolling preparation inspection abnormal value threshold of each sensor device, the rolling preparation inspection result of each sensor device is determined to be executable for rolling, and the production rolling of aluminum plates and strips is started.

[0014] As a preferred technical solution, the rolling equipment is started to carry out the rolling process of aluminum strip production, thereby obtaining the real-time rolling data of each sub-rolling area of ​​the aluminum strip based on the monitoring of each sensor device, and analyzing and processing to generate the real-time rolling evaluation value of each sub-rolling area of ​​the aluminum strip, specifically including: Based on the monitoring of each sensor device, the real-time rolling data of each sub-rolling area of ​​the aluminum strip is obtained, and the real-time rolling data of each sub-rolling area of ​​the aluminum strip includes the average thickness, center point thickness and thickness extreme value difference corresponding to each sub-rolling area of ​​the aluminum strip.

[0015] A set of real-time rolling data standard values ​​for each sub-rolling area of ​​the aluminum strip is extracted from the database, wherein the real-time rolling data standard value set includes an average thickness standard value, a center point thickness standard value, and a thickness standard extreme value difference corresponding to each sub-rolling area of ​​the aluminum strip.

[0016] The preset standard value of aluminum sheet thickness is extracted from the database, and based on the real-time rolling data of each sub-rolling area of ​​the aluminum sheet and strip and the set of real-time rolling data standard values, the real-time rolling evaluation value of each sub-rolling area of ​​the aluminum sheet and strip is analyzed and processed to generate the real-time rolling evaluation value of each sub-rolling area of ​​the aluminum sheet and strip. The real-time rolling evaluation value of each sub-rolling area of ​​the aluminum sheet and strip is used to characterize the real-time rolling conditions of each sub-rolling area of ​​the aluminum sheet and strip.

[0017] As a preferred technical solution, the real-time rolling evaluation value of each sub-rolling area of ​​the aluminum strip is generated based on the real-time rolling data analysis and processing of each sub-rolling area of ​​the aluminum strip, specifically including: ; in, For aluminum strip Real-time rolling evaluation value of each rolling area, For aluminum strip The average thickness of the sub-rolling area, For aluminum strip The center point thickness of each rolling area, For aluminum strip The thickness extreme value difference of each rolling area is is the standard value of the center point thickness, is the standard value of the center point thickness, is the thickness standard extreme value difference, is the sub-rolling area number of the aluminum strip, , is the total number of sub-rolling areas of the aluminum strip, As a preferred technical solution, the real-time rolling thickness of the aluminum strip is adjusted and controlled based on the real-time rolling evaluation value of each sub-rolling area of ​​the aluminum strip, specifically including: Based on the real-time rolling evaluation value of each sub-rolling area of ​​the aluminum strip, the abnormal value of the rolling preparation inspection of each sensor equipment is used as an influencing factor to correct the real-time rolling evaluation value of each sub-rolling area of ​​the aluminum strip to obtain the corrected real-time rolling evaluation value of the aluminum strip.

[0018] The corrected real-time rolling evaluation value of each sub-rolling area of ​​the aluminum sheet and strip is compared with the qualified interval of the real-time rolling evaluation value in the database. If the corrected real-time rolling evaluation value of a sub-rolling area of ​​the aluminum sheet and strip is within the qualified interval of the real-time rolling evaluation value, the rolling production is continued with the current rolling working parameters of the sub-rolling area. If the corrected real-time rolling evaluation value of a sub-rolling area of ​​the aluminum sheet and strip is greater than the maximum value of the qualified interval of the real-time rolling evaluation value, it is determined that the control parameters of the aluminum sheet and strip production rolling need to be adjusted, and it is recorded as the sub-rolling area that needs to be adjusted downward. The corrected real-time rolling evaluation value of the sub-rolling area to be adjusted is subtracted from the maximum value of the qualified interval of the real-time rolling evaluation value to obtain the rolling downward adjustment value of the sub-rolling area that needs to be adjusted downward; if the corrected real-time rolling evaluation value of a sub-rolling area of ​​the aluminum sheet and strip is less than the minimum value of the qualified interval of the real-time rolling evaluation value, it is determined that the control parameters of the production rolling of the aluminum sheet and strip need to be adjusted, and it is recorded as the sub-rolling area that needs to be adjusted upward; the corrected real-time rolling evaluation value of the sub-rolling area that needs to be adjusted upward is subtracted from the minimum value of the qualified interval of the real-time rolling evaluation value to obtain the rolling upward adjustment value of the sub-rolling area that needs to be adjusted upward.

[0019] The rolling downward adjustment value and the rolling upward adjustment value are collectively recorded as the rolling adjustment value.

[0020] The adjustment values ​​of each rolling control parameter corresponding to the rolling adjustment value interval of the sub-rolling area of ​​the aluminum sheet and strip are extracted, and the rolling control parameters include rolling force, rolling speed, roll gap length and temperature. Based on the rolling adjustment value of the sub-rolling area of ​​the aluminum sheet and strip, the rolling control parameter adjustment values ​​corresponding to the interval where each rolling adjustment value is located are mapped and matched to obtain the rolling force adjustment value, rolling speed adjustment value, roll gap length adjustment value and temperature adjustment value of the aluminum sheet and strip, thereby adjusting and controlling the real-time rolling thickness of the aluminum sheet and strip.

[0021] As a preferred technical solution, the thickness data and apparent quality data of the finished aluminum strip specifically include: The thickness data of the finished aluminum strip includes the maximum thickness value, the minimum thickness value and the average thickness value of the finished aluminum strip.

[0022] The apparent quality data include the defect area, plate curvature and glossiness of the finished aluminum strip.

[0023] As a preferred technical solution, the analysis obtains the acceptance result of the aluminum strip, specifically including: The standard thickness data of the aluminum strip is extracted from the database, wherein the standard thickness data of the aluminum strip includes a maximum thickness standard value, a minimum thickness standard value and an average thickness standard value.

[0024] Based on the thickness data of the finished aluminum sheet and strip and the standard thickness data, the thickness quality acceptance value of the finished aluminum sheet and strip is generated through processing and analysis.

[0025] The standard apparent quality data of the aluminum strip is obtained from the database, wherein the standard apparent quality data of the aluminum strip includes a standard value of defect area, a standard value of plate curvature, and a standard value of glossiness.

[0026] Based on the apparent quality data of the finished aluminum sheet and strip and the standard apparent quality data, the apparent quality acceptance value of the finished aluminum sheet and strip is generated through processing and analysis.

[0027] Based on the thickness quality acceptance value and apparent quality acceptance value of the finished aluminum sheet and strip, the comprehensive acceptance value of the aluminum sheet and strip is generated through processing and analysis.

[0028] The comprehensive acceptance value of the aluminum sheet and strip is compared with the preset comprehensive acceptance value threshold to obtain the acceptance result of the aluminum sheet and strip.

[0029] As a preferred technical solution, the feedback to the control display terminal specifically includes: If the comprehensive acceptance value of the finished aluminum sheet is less than the comprehensive acceptance value threshold, the finished aluminum sheet is judged to be unqualified and the feedback is given to the control display terminal.

[0030] If the comprehensive acceptance value of the finished aluminum sheet is greater than or equal to the comprehensive acceptance value threshold, the finished aluminum sheet is judged to be qualified.

[0031] Compared with the prior art, the embodiments of the present invention have at least the following beneficial effects: The present invention provides a multi-sensor device cooperative thickness control system for aluminum strip production and rolling. By integrating a rolling verification module, a data acquisition module, a feedback control module, a feedforward control module and an aluminum strip acceptance module, a closed-loop automated rolling control system is formed. Through real-time monitoring and feedback control, the thickness of the aluminum strip is accurately controlled to reduce errors. By screening out sensor devices that cannot work properly in advance, it can be ensured that the sensor devices can accurately detect and respond at critical moments, thereby avoiding safety accidents caused by sensor device failures. Similarly, the accuracy of sensor device data and the reliability of transmission data are also ensured. (3) The rolling preparation inspection abnormality value of each sensor device is used as an influencing factor to correct the real-time rolling evaluation value of each sub-rolling area of ​​the aluminum strip, which can improve the measurement accuracy. The rolling preparation inspection abnormality value of the sensor device can reflect the current state of the device, including its accuracy and reliability. The rolling preparation inspection abnormality value of each sensor device is used as an influencing factor to correct the sensor measurement data and improve the accuracy of the real-time rolling evaluation value.

[0032] Of course, any product implementing the present invention does not necessarily need to achieve all of the above advantages at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the system module of the present invention. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0036] See also Figure 1 As shown, the embodiment of the present invention provides a multi-sensor equipment coordinated thickness control system for aluminum strip production and rolling, including: The rolling preparation verification module is used to start each sensor device for automatic verification processing through the collaborative controller after receiving the aluminum plate and strip production rolling start signal, obtain the automatic verification data of each sensor device and generate the rolling preparation verification result.

[0037] The automatic verification data of each sensor device is obtained, specifically including: In this embodiment, the sensing devices include a pressure sensing device, a temperature sensing device and a thickness detection device.

[0038] After receiving the aluminum strip production rolling start signal, each sensor device is started by the collaborative controller to perform automatic verification processing to obtain automatic verification data of each sensor device. The automatic verification data of each sensor device specifically includes response time, data transmission rate, data transmission bandwidth, working power and resolution, which are obtained through an oscilloscope and a network analyzer.

[0039] Response time is an indicator that measures the time it takes for a sensor device to respond after receiving a signal. It is directly related to the real-time performance and efficiency of the control system. A short response time can ensure that the control system can capture changes in the production process in a timely manner and make adjustments quickly.

[0040] The data transmission rate refers to the amount of data transmitted by the sensor device per unit time. A high data transmission rate can ensure the rapid transmission of large amounts of data.

[0041] Data transmission bandwidth refers to the maximum data transmission rate that a data transmission channel can withstand, which determines the capacity of the data transmission channel. Sufficient bandwidth can ensure that data from multiple sensor devices can be transmitted simultaneously without congestion.

[0042] Working power refers to the power consumed by the sensor device during normal operation. Monitoring working power helps to understand the energy consumption of the device. Abnormal power consumption may indicate a device failure.

[0043] Resolution refers to the smallest unit of measurement that a sensor device can distinguish, that is, the smallest change in the output signal of the sensor device corresponding to the change in the input quantity. High resolution means that the sensor device can detect more subtle parameter changes. In the production of aluminum plates and strips, high-resolution sensor equipment can more accurately monitor parameters such as thickness and defects, thereby improving product quality.

[0044] The specific process of obtaining the automatic verification data of each sensor device and generating the rolling preparation verification result is as follows: Based on the automatic verification data of each sensor device, a set of standard values ​​of automatic verification data of each sensor device is extracted from the database, including standard values ​​of response time, data transmission rate, data transmission bandwidth, working power and resolution. Based on the automatic verification data and dynamic verification data standard values ​​of each sensor device, the rolling preparation inspection abnormal values ​​of each sensor device are processed and analyzed to generate.

[0045] The processing and analysis generates rolling preparation inspection abnormal values ​​of each sensor device, and the specific processing conditions are: ; in, For the Rolling preparation inspection abnormal values ​​of the sensor equipment, For the The response time of a sensor device, For the The data transmission rate of each sensor device is For the The data transmission bandwidth of each sensor device is For the The working power of each sensor device, For the The resolution of the sensor device, For the The standard value of the response time of a sensor device, For the The standard value of the data transmission rate of each sensor device, For the The standard value of data transmission bandwidth for each sensor device is: For the The working power verification value of each sensor device, For the The resolution standard value of each sensor device, i is the sensor device number, , is the total number of sensor devices.

[0046] It should be noted that there is a certain correlation between the response time, data transmission rate, data transmission bandwidth, working power, and resolution. A fast data transmission rate can reduce the data transmission time, thereby reducing the overall response time. If the data transmission rate is slow, even if the sensor itself responds quickly, the response time will increase due to the delay in data transmission. The data transmission rate is limited by the data transmission bandwidth. The larger the bandwidth, the higher the data transmission rate can be supported. If the bandwidth is not sufficient to support high-speed data transmission, the transmission rate will be limited. Increasing the data transmission rate requires increasing the working power, and a higher transmission rate requires a stronger signal drive. High-resolution sensors may require more complex signal processing, which will increase the processing time and affect the response time.

[0047] When the rolling preparation check result indicates that rolling can be performed, outputting a rolling execution signal specifically includes: Based on the rolling preparation inspection abnormal value of each sensor device, it is compared with the rolling preparation inspection abnormal value threshold of each sensor device stored in the database. If the rolling preparation inspection abnormal value of a certain sensor device is greater than or equal to the rolling preparation inspection abnormal value threshold of the sensor device, the sensor device is judged as abnormal and an early warning is issued.

[0048] When the rolling preparation inspection abnormal value of each sensor device is less than the rolling preparation inspection abnormal value threshold of each sensor device, the production rolling of aluminum strip starts.

[0049] The rolling preparation inspection abnormal value threshold is processed as follows: in a specific embodiment, the rolling preparation inspection abnormal value threshold is directly set in the database during the development of the multi-sensor device collaborative thickness control system involved in the embodiment of the present invention. There are many methods for setting the rolling preparation inspection abnormal value threshold, such as obtaining it through statistical analysis, including counting the rolling preparation inspection abnormal values ​​under the historical normal state of each sensor device (for example, the response time is less than 10ms), and averaging the rolling preparation inspection abnormal values ​​obtained multiple times to obtain the rolling preparation inspection abnormal value threshold, or experts judge the boundary between high rolling preparation inspection abnormal values ​​and low rolling preparation inspection abnormal values ​​through corresponding historical data to set the threshold, thereby adjusting the threshold.

[0050] By screening out sensor devices that are not working properly in advance, we can ensure that the sensor devices can accurately detect and respond at critical moments. Discovering potential sensor device problems in advance can avoid downtime caused by failures during the production process, thereby avoiding safety accidents caused by sensor device failures. Similarly, it also ensures the accuracy of sensor device data and guarantees data reliability.

[0051] The data acquisition module is used to output a rolling execution signal and start the rolling equipment to carry out the aluminum plate and strip production rolling process when the rolling preparation verification result shows that rolling can be executed. Based on the monitoring of each sensor device, the real-time rolling data of each sub-rolling area of ​​the aluminum plate and strip is obtained.

[0052] The rolling equipment is started to perform rolling processing of aluminum strip production, thereby obtaining real-time rolling data of each sub-rolling area of ​​the aluminum strip based on monitoring of each sensor device, and analyzing and processing to generate real-time rolling evaluation values ​​of each sub-rolling area of ​​the aluminum strip, specifically including: Based on the monitoring of each sensor device, the real-time rolling data of each sub-rolling area of ​​the aluminum strip is obtained, and the real-time rolling data of each sub-rolling area of ​​the aluminum strip includes the average thickness, center point thickness and thickness extreme value difference corresponding to each sub-rolling area of ​​the aluminum strip.

[0053] The average thickness reflects the overall thickness level of each sub-rolling area of ​​the aluminum strip. By monitoring the average thickness, it is possible to evaluate whether the rolling process has reached the predetermined thickness requirement. If the average thickness deviates from the target value, it indicates that the rolling process may need to be adjusted.

[0054] The center point thickness refers to the thickness of the aluminum strip at the center of the width direction. The center point thickness is an important indicator to measure the symmetry and uniformity of the aluminum strip. If there is a large difference between the center point thickness and the edge thickness, it may indicate that the rolling roller is eccentric or the rolling force is unevenly distributed, and timely adjustment is required.

[0055] The thickness extreme difference refers to the difference between the maximum and minimum thickness of the aluminum strip in the same sub-rolling area. The thickness extreme difference reflects the degree of fluctuation of the thickness of the aluminum strip in this area. A smaller extreme difference indicates that the thickness is well controlled and the product quality is high. A larger extreme difference indicates that there is a larger thickness non-uniformity in the rolling process.

[0056] A set of real-time rolling data standard values ​​for each sub-rolling area of ​​the aluminum strip is extracted from the database, wherein the real-time rolling data standard value set includes an average thickness standard value, a center point thickness standard value, and a thickness standard extreme value difference corresponding to each sub-rolling area of ​​the aluminum strip.

[0057] The preset standard value of aluminum sheet thickness is extracted from the database, and based on the real-time rolling data of each sub-rolling area of ​​the aluminum sheet and strip and the set of real-time rolling data standard values, the real-time rolling evaluation value of each sub-rolling area of ​​the aluminum sheet and strip is analyzed and processed to generate the real-time rolling evaluation value of each sub-rolling area of ​​the aluminum sheet and strip. The real-time rolling evaluation value of each sub-rolling area of ​​the aluminum sheet and strip is used to characterize the real-time rolling conditions of each sub-rolling area of ​​the aluminum sheet and strip.

[0058] The feedback control module generates a real-time rolling evaluation value of each sub-rolling area of ​​the aluminum strip based on the real-time rolling data analysis and processing of each sub-rolling area of ​​the aluminum strip, and adjusts and controls the real-time rolling thickness of the aluminum strip based on the real-time rolling evaluation value of each sub-rolling area of ​​the aluminum strip.

[0059] The real-time rolling evaluation value of each sub-rolling area of ​​the aluminum strip is generated based on the real-time rolling data analysis and processing of each sub-rolling area of ​​the aluminum strip, specifically including: ; in, For aluminum strip Real-time rolling evaluation value of each rolling area, For aluminum strip The average thickness of the sub-rolling area, For aluminum strip The center point thickness of each rolling area, For aluminum strip The thickness extreme value difference of each rolling area is is the standard value of the center point thickness, is the standard value of the center point thickness, is the thickness standard extreme value difference, is the sub-rolling area number of the aluminum strip, , is the total number of sub-rolling areas of the aluminum strip, The method of adjusting and controlling the real-time rolling thickness of the aluminum strip based on the real-time rolling evaluation value of each sub-rolling area of ​​the aluminum strip specifically includes: Based on the real-time rolling evaluation value of each sub-rolling area of ​​the aluminum sheet and strip, the abnormal value of the rolling preparation inspection of each sensor equipment is used as an influencing factor to correct the real-time rolling evaluation value of each sub-rolling area of ​​the aluminum sheet and strip, so as to obtain the corrected real-time rolling evaluation value of each sub-rolling area of ​​the aluminum sheet and strip.

[0060] The modified real-time rolling evaluation value of the aluminum strip is specifically processed as follows: ; in, For aluminum strip The corrected real-time rolling evaluation value of each rolling area, For the Rolling preparation inspection abnormal values ​​of the sensor equipment, For aluminum strip The real-time rolling evaluation value of each rolling area, i is the number of the sensor device, , is the total number of sensor devices, is the sub-rolling area number of the aluminum strip, , is the total number of sub-rolling areas of the aluminum strip, is a natural constant.

[0061] The corrected real-time rolling evaluation value of each sub-rolling area of ​​the aluminum sheet and strip is compared with the qualified interval of the real-time rolling evaluation value in the database. If the corrected real-time rolling evaluation value of a sub-rolling area of ​​the aluminum sheet and strip is within the qualified interval of the real-time rolling evaluation value, the rolling production is continued with the current rolling working parameters of the sub-rolling area. If the corrected real-time rolling evaluation value of a sub-rolling area of ​​the aluminum sheet and strip is greater than the maximum value of the qualified interval of the real-time rolling evaluation value, it is determined that the control parameters of the aluminum sheet and strip production rolling need to be adjusted, and it is recorded as the sub-rolling area that needs to be adjusted downward. The corrected real-time rolling evaluation value of the sub-rolling area to be adjusted is subtracted from the maximum value of the qualified interval of the real-time rolling evaluation value to obtain the rolling downward adjustment value of the sub-rolling area that needs to be adjusted downward; if the corrected real-time rolling evaluation value of a sub-rolling area of ​​the aluminum sheet and strip is less than the minimum value of the qualified interval of the real-time rolling evaluation value, it is determined that the control parameters of the production rolling of the aluminum sheet and strip need to be adjusted, and it is recorded as the sub-rolling area that needs to be adjusted upward; the corrected real-time rolling evaluation value of the sub-rolling area that needs to be adjusted upward is subtracted from the minimum value of the qualified interval of the real-time rolling evaluation value to obtain the rolling upward adjustment value of the sub-rolling area that needs to be adjusted upward.

[0062] The rolling downward adjustment value and the rolling upward adjustment value are collectively recorded as the rolling adjustment value.

[0063] The adjustment values ​​of various rolling control parameters pre-stored in the database corresponding to the rolling adjustment value interval of the sub-rolling area of ​​the aluminum sheet and strip are extracted, wherein the various rolling control parameters include rolling force, rolling speed, roll gap length and temperature. Based on the rolling adjustment value of the sub-rolling area of ​​the aluminum sheet and strip, the rolling control parameter adjustment values ​​corresponding to the interval where the rolling adjustment values ​​are located are mapped and matched respectively to obtain the rolling force adjustment value, rolling speed adjustment value, roll gap length adjustment value and temperature adjustment value of the aluminum sheet and strip, thereby adjusting and controlling the real-time rolling thickness of the aluminum sheet and strip.

[0064] Rolling force refers to the force acting on the rollers, which is used to overcome the deformation resistance of the metal and achieve plastic deformation of the metal. By adjusting the rolling force, the thickness of the aluminum strip can be accurately controlled.

[0065] Rolling speed refers to the speed at which the aluminum strip passes through the rollers in the rolling mill. Appropriate rolling speed helps to obtain better surface quality and avoid surface defects caused by excessive speed.

[0066] The roll gap length refers to the gap between the rollers, which determines the degree of deformation of the aluminum strip during the rolling process. Adjusting the roll gap length can directly affect the final thickness of the aluminum strip. The appropriate roll gap length can ensure that the aluminum strip deforms evenly during the rolling process, avoiding problems such as uneven thickness or insufficient deformation.

[0067] Temperature refers to the temperature of the aluminum strip during the rolling process, which affects the plastic deformation ability of the metal. Appropriate temperature can increase the plasticity of aluminum and make it easier to deform.

[0068] It should be noted that, when the rolling force adjustment value, rolling speed adjustment value, roll gap length adjustment value and temperature adjustment value are positive, the corresponding control parameters are adjusted upward, and when the adjustment values ​​are negative, the corresponding control parameters are adjusted downward.

[0069] The aluminum sheet and strip acceptance module is used to mark the aluminum sheet and strip as a finished aluminum sheet and strip after rolling is completed, and to collect the thickness data and apparent quality data of the finished aluminum sheet and strip, thereby analyzing the acceptance results of the aluminum sheet and strip and feeding them back to the control and display terminal.

[0070] The thickness data of the finished aluminum strip specifically includes: The maximum thickness, minimum thickness and average thickness of the finished aluminum sheet and strip.

[0071] The maximum thickness value reflects the thickest point of the finished aluminum sheet and strip, and is an important indicator to measure whether the product meets the thickness tolerance range, ensuring that the finished aluminum sheet and strip does not exceed the specified maximum thickness limit.

[0072] The minimum thickness value indicates the thinnest point of the finished aluminum strip, and is also a key indicator to measure whether the product meets the thickness tolerance range.

[0073] The average thickness value is the statistical average of the thickness of the entire aluminum strip, which reflects the overall thickness level of the aluminum strip. The average thickness value can be used to evaluate the overall uniformity of the aluminum strip and ensure the consistency of the product.

[0074] The apparent quality data specifically include: The defect area, plate curvature and glossiness of the finished aluminum strip.

[0075] The defect area refers to the total area of ​​surface defects on the aluminum sheet, such as scratches, indentations, bubbles, stains, etc. The presence of defects may affect subsequent processing, such as painting, printing, etc., so it needs to be controlled within an acceptable range.

[0076] The curvature of the plate refers to the degree of curvature of the aluminum strip in the length and width direction, usually expressed in millimeters. It ensures that the aluminum strip can remain straight during subsequent processing and use, and will not cause processing difficulties or product scrapping due to bending.

[0077] Glossiness refers to the light reflectivity of the aluminum sheet surface. Aluminum sheets with high glossiness have better visual effects and are suitable for products that require high appearance quality. Certain applications, such as reflective materials, decorative materials, etc., require a specific glossiness to meet functional requirements.

[0078] The acceptance results of the aluminum strip obtained by the analysis are fed back to the control display terminal, specifically including: The standard thickness data of the aluminum strip is extracted from the database, wherein the standard thickness data of the aluminum strip includes a maximum thickness standard value, a minimum thickness standard value and an average thickness standard value.

[0079] Based on the thickness data of the finished aluminum strip and the standard thickness data, the thickness quality acceptance value of the finished aluminum strip is generated through processing and analysis. The specific processing process is as follows: ; in, is the thickness quality acceptance value of the finished aluminum strip, is the maximum thickness of the finished aluminum strip. is the minimum thickness of the finished aluminum strip. is the average thickness of the finished aluminum strip, is the maximum thickness standard value of the finished aluminum strip. is the minimum thickness standard value of finished aluminum strip, It is the standard value of the average thickness of the finished aluminum sheet.

[0080] It should be noted that there is a certain correlation between the maximum thickness value, minimum thickness value and average thickness value of the finished aluminum strip. The difference between the maximum thickness value and the minimum thickness value is called the thickness tolerance. The smaller the thickness tolerance, the more accurate the thickness control of the aluminum strip, and the higher the uniformity and quality of the product. The average thickness value should usually be between the maximum and minimum thickness values. If the average thickness value is close to the maximum thickness value, it may mean that the overall thickness is thicker. If it is close to the minimum thickness value, it may be thinner overall. Ideally, the maximum and minimum thickness values ​​should be as close to the average thickness value as possible, indicating that the thickness distribution is uniform.

[0081] The standard apparent quality data of the aluminum strip is obtained from the database, wherein the standard apparent quality data of the aluminum strip includes a standard value of defect area, a standard value of plate curvature, and a standard value of glossiness.

[0082] Based on the apparent quality data of the finished aluminum strip and the standard apparent quality data, the apparent quality acceptance value of the finished aluminum strip is generated through processing and analysis. The specific processing conditions are: ; in, is the apparent quality acceptance value of the finished aluminum strip, is the defect area of ​​the finished aluminum strip, is the curvature of the finished aluminum strip. is the glossiness of the finished aluminum strip, is the standard value of the defect area of ​​the finished aluminum strip, It is the standard value of the curvature of the finished aluminum strip. is the standard value of glossiness of finished aluminum strip. is a natural constant.

[0083] Based on the thickness quality acceptance value and the apparent quality acceptance value of the finished aluminum strip, the comprehensive acceptance value of the finished aluminum strip is generated through processing and analysis. The specific processing conditions are: ; in, is the comprehensive acceptance value of the finished aluminum strip. is the thickness quality acceptance value of the finished aluminum strip, is the apparent quality acceptance value of the finished aluminum strip, is the thickness quality acceptance value weight factor, is the weight factor of the apparent quality acceptance value.

[0084] It should be noted that the thickness quality acceptance value weight factor and the apparent quality acceptance value weight factor are both in the range of 0 to 1 and meet the requirements. The thickness quality acceptance value weight factor is the influencing factor corresponding to the comprehensive acceptance value of the finished aluminum sheet and strip preset in the database, which indicates the numerical value of the influence degree of the thickness quality acceptance value on the comprehensive acceptance value of the finished aluminum sheet and strip. The apparent quality acceptance value weight factor is the influencing factor corresponding to the comprehensive acceptance value of the finished aluminum sheet and strip preset in the database, which indicates the numerical value of the influence degree of the apparent quality acceptance value on the comprehensive acceptance value of the finished aluminum sheet and strip. When used, the thickness quality acceptance value weight factor and the apparent quality acceptance value weight factor can be directly obtained from the database, and the corresponding relationship is a pre-set mapping relationship. For example: the thickness quality acceptance value and the apparent quality acceptance value of the finished aluminum sheet and strip respectively form a mapping set with the corresponding thickness quality acceptance value weight factor and the apparent quality acceptance value weight factor, and the thickness quality acceptance value and the apparent quality acceptance value of the finished aluminum sheet and strip are input into the mapping set to obtain the thickness quality acceptance value weight factor and the apparent quality acceptance value weight factor of the finished aluminum sheet and strip, and the mapping relationship is one-to-one correspondence.

[0085] The comprehensive acceptance value of the aluminum sheet and strip is compared with the preset comprehensive acceptance value threshold to obtain the acceptance result of the aluminum sheet and strip.

[0086] If the comprehensive acceptance value of the finished aluminum sheet is less than the comprehensive acceptance value threshold, the finished aluminum sheet is judged to be unqualified and the feedback is given to the control display terminal.

[0087] If the comprehensive acceptance value of the finished aluminum sheet is greater than or equal to the comprehensive acceptance value threshold, the finished aluminum sheet is judged to be qualified.

[0088] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0089] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that technicians in the relevant technical field can understand and use the present invention well. As long as they do not deviate from the structure of the present invention or exceed the scope defined by the present invention, they should all belong to the protection scope of the present invention.

Claims

1. A multi-sensor coordinated thickness control system for aluminum strip production and rolling, characterized in that: include: The rolling preparation verification module is used to start each sensor device through the collaborative controller to perform automatic verification processing after receiving the aluminum plate and strip production rolling start signal, obtain the automatic verification data of each sensor device and generate the rolling preparation verification result; The data acquisition module is used to output a rolling execution signal when the rolling preparation verification result indicates that rolling can be executed, and start the rolling equipment to carry out the aluminum plate and strip production rolling process, thereby obtaining the real-time rolling data of each sub-rolling area of ​​the aluminum plate and strip based on the monitoring of each sensor device; A feedback control module generates a real-time rolling evaluation value of each sub-rolling area of ​​the aluminum strip based on the real-time rolling data analysis and processing of each sub-rolling area of ​​the aluminum strip, and adjusts and controls the real-time rolling thickness of the aluminum strip based on the real-time rolling evaluation value of each sub-rolling area of ​​the aluminum strip; The aluminum strip acceptance module is used to mark the aluminum strip as a finished aluminum strip after rolling, and to collect the thickness data and apparent quality data of the finished aluminum strip, thereby analyzing the acceptance results of the aluminum strip and feeding them back to the control display terminal.

2. The multi-sensor equipment coordinated thickness control system for aluminum strip production and rolling according to claim 1 is characterized in that: The automatic verification data of each sensor device is obtained, specifically including: After receiving the aluminum strip production rolling start signal, each sensor device is started through the collaborative controller to perform automatic verification processing to obtain automatic verification data of each sensor device. The automatic verification data of each sensor device specifically includes response time, data transmission rate, data transmission bandwidth, working power and resolution.

3. The multi-sensor coordinated thickness control system for aluminum strip production and rolling according to claim 2 is characterized in that: The specific process of obtaining the automatic verification data of each sensor device and generating the rolling preparation verification result is as follows: Based on the automatic verification data of each sensor device, a set of standard values ​​of automatic verification data of each sensor device is extracted from the database, specifically including the standard value of response time, the standard value of data transmission rate, the standard value of data transmission bandwidth, the standard value of working power and the standard value of resolution. Based on the automatic verification data of each sensor device and the standard value of dynamic verification data, the abnormal value of rolling preparation inspection of each sensor device is processed and analyzed to generate; Based on the rolling preparation inspection abnormal value of each sensor device, it is compared with the rolling preparation inspection abnormal value threshold of each sensor device stored in the database. If the rolling preparation inspection abnormal value of a certain sensor device is greater than or equal to the rolling preparation inspection abnormal value threshold of the sensor device, the rolling preparation inspection result of the sensor device is judged as rolling cannot be executed, and an early warning is issued.

4. The multi-sensor equipment coordinated thickness control system for aluminum strip production and rolling according to claim 1 is characterized in that: When the rolling preparation check result indicates that rolling can be performed, outputting a rolling execution signal specifically includes: When the rolling preparation inspection abnormal values ​​of each sensor device are less than the rolling preparation inspection abnormal value threshold of each sensor device, the rolling preparation inspection result of each sensor device is determined to be executable for rolling, and the production rolling of aluminum plates and strips is started.

5. The multi-sensor equipment coordinated thickness control system for aluminum strip production and rolling according to claim 4 is characterized in that: The starting of the rolling equipment to carry out the aluminum strip production rolling process, thereby obtaining the real-time rolling data of each sub-rolling area of ​​the aluminum strip based on the monitoring of each sensor device, specifically includes: Based on the monitoring of each sensor device, real-time rolling data of each sub-rolling area of ​​the aluminum strip is obtained, wherein the real-time rolling data of each sub-rolling area of ​​the aluminum strip includes the average thickness, center point thickness and thickness extreme value difference corresponding to each sub-rolling area of ​​the aluminum strip; Extracting a set of real-time rolling data standard values ​​of each sub-rolling area of ​​the aluminum strip from the database, wherein the set of real-time rolling data standard values ​​includes an average thickness standard value, a center point thickness standard value, and a thickness standard extreme value difference corresponding to each sub-rolling area of ​​the aluminum strip; The preset standard value of aluminum sheet thickness is extracted from the database, and based on the real-time rolling data of each sub-rolling area of ​​the aluminum sheet and strip and the set of real-time rolling data standard values, the real-time rolling evaluation value of each sub-rolling area of ​​the aluminum sheet and strip is analyzed and processed to generate the real-time rolling evaluation value of each sub-rolling area of ​​the aluminum sheet and strip. The real-time rolling evaluation value of each sub-rolling area of ​​the aluminum sheet and strip is used to characterize the real-time rolling conditions of each sub-rolling area of ​​the aluminum sheet and strip.

6. The multi-sensor equipment coordinated thickness control system for aluminum strip production and rolling according to claim 4 is characterized in that: The real-time rolling evaluation value of each sub-rolling area of ​​the aluminum strip is generated based on the real-time rolling data analysis and processing of each sub-rolling area of ​​the aluminum strip, specifically including: ； in, For aluminum strip Real-time rolling evaluation value of each rolling area, For aluminum strip The average thickness of the sub-rolling area, For aluminum strip The center point thickness of each rolling area, For aluminum strip The thickness extreme value difference of each rolling area is is the standard value of the center point thickness, is the standard value of the center point thickness, is the thickness standard extreme value difference, is the sub-rolling area number of the aluminum strip, , is the total number of sub-rolling areas of the aluminum strip, is a natural constant.

7. The multi-sensor equipment coordinated thickness control system for aluminum strip production and rolling according to claim 3 is characterized in that: The real-time rolling thickness of each sub-rolling area of ​​the aluminum strip is adjusted and controlled based on the real-time rolling evaluation value of each sub-rolling area of ​​the aluminum strip, specifically including: Based on the real-time rolling evaluation value of each sub-rolling area of ​​the aluminum strip, the abnormal value of the rolling preparation inspection of each sensor device is used as an influencing factor to correct the real-time rolling evaluation value of each sub-rolling area of ​​the aluminum strip to obtain the corrected real-time rolling evaluation value of the aluminum strip; The corrected real-time rolling evaluation value of each sub-rolling area of ​​the aluminum sheet and strip is compared with the qualified interval of the real-time rolling evaluation value in the database. If the corrected real-time rolling evaluation value of a sub-rolling area of ​​the aluminum sheet and strip is within the qualified interval of the real-time rolling evaluation value, the rolling production is continued with the current rolling working parameters of the sub-rolling area. If the corrected real-time rolling evaluation value of a sub-rolling area of ​​the aluminum sheet and strip is greater than the maximum value of the qualified interval of the real-time rolling evaluation value, it is determined that the control parameters of the aluminum sheet and strip production rolling need to be adjusted, and it is recorded as the sub-rolling area that needs to be adjusted downward. The corrected real-time rolling evaluation value of the sub-rolling area to be adjusted is subtracted from the maximum value of the qualified interval of the real-time rolling evaluation value to obtain the rolling downward adjustment value of the sub-rolling area to be adjusted downward. If the corrected real-time rolling evaluation value of a sub-rolling area of ​​the aluminum plate and strip is less than the minimum value of the qualified interval of the real-time rolling evaluation value, it is determined that the control parameters of the production rolling of the aluminum plate and strip need to be adjusted, and it is recorded as the sub-rolling area to be adjusted upward. The corrected real-time rolling evaluation value of the sub-rolling area to be adjusted upward is subtracted from the minimum value of the qualified interval of the real-time rolling evaluation value to obtain the rolling upward adjustment value of the sub-rolling area to be adjusted upward. The rolling adjustment value and the rolling adjustment value are collectively recorded as the rolling adjustment value; The adjustment values ​​of each rolling control parameter corresponding to the rolling adjustment value interval of the sub-rolling area of ​​the aluminum sheet and strip are extracted, and the rolling control parameters include rolling force, rolling speed, roll gap length and temperature. Based on the rolling adjustment value of the sub-rolling area of ​​the aluminum sheet and strip, the rolling control parameter adjustment values ​​corresponding to the interval where each rolling adjustment value is located are mapped and matched to obtain the rolling force adjustment value, rolling speed adjustment value, roll gap length adjustment value and temperature adjustment value of the aluminum sheet and strip, thereby adjusting and controlling the real-time rolling thickness of the aluminum sheet and strip.

8. The multi-sensor equipment coordinated thickness control system for aluminum strip production and rolling according to claim 7 is characterized in that: The thickness data and apparent quality data of the finished aluminum strip specifically include: The thickness data of the finished aluminum strip includes the maximum thickness value, the minimum thickness value and the average thickness value of the finished aluminum strip; The apparent quality data include the defect area, plate curvature and glossiness of the finished aluminum strip.

9. The multi-sensor equipment coordinated thickness control system for aluminum strip production and rolling according to claim 8, characterized in that: The analysis obtains the acceptance results of the aluminum strip, which specifically include: Extracting standard thickness data of aluminum strip from a database, wherein the standard thickness data of aluminum strip includes a maximum thickness standard value, a minimum thickness standard value and an average thickness standard value; Based on the thickness data of the finished aluminum strip and the standard thickness data, the thickness quality acceptance value of the finished aluminum strip is generated by processing and analyzing; Acquire standard apparent quality data of the aluminum strip from a database, wherein the standard apparent quality data of the aluminum strip includes a standard value of defect area, a standard value of plate curvature, and a standard value of glossiness; Based on the apparent quality data of the finished aluminum strip and the standard apparent quality data, the apparent quality acceptance value of the finished aluminum strip is generated by processing and analyzing; Based on the thickness quality acceptance value and the apparent quality acceptance value of the finished aluminum strip, the comprehensive acceptance value of the aluminum strip is generated through processing and analysis; The comprehensive acceptance value of the aluminum sheet and strip is compared with the preset comprehensive acceptance value threshold to obtain the acceptance result of the aluminum sheet and strip.

10. The multi-sensor equipment coordinated thickness control system for aluminum strip production and rolling according to claim 9, characterized in that: The providing feedback to the control display terminal specifically includes: If the comprehensive acceptance value of the finished aluminum strip is less than the comprehensive acceptance value threshold, the finished aluminum strip is judged to be unqualified and the feedback is given to the control display terminal; If the comprehensive acceptance value of the finished aluminum sheet is greater than or equal to the comprehensive acceptance value threshold, the finished aluminum sheet is judged to be qualified.

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