CN116174498A - Roller wear error checking method and system based on edge calculation - Google Patents

Roller wear error checking method and system based on edge calculation Download PDF

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Publication number
CN116174498A
CN116174498A CN202310196000.2A CN202310196000A CN116174498A CN 116174498 A CN116174498 A CN 116174498A CN 202310196000 A CN202310196000 A CN 202310196000A CN 116174498 A CN116174498 A CN 116174498A
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China
Prior art keywords
roller
data
model
wear
edge
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CN202310196000.2A
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Chinese (zh)
Inventor
赵阳
李彬周
刘宝权
张大越
司姗姗
王军生
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Ansteel Beijing Research Institute
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Ansteel Beijing Research Institute
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Priority to CN202310196000.2A priority Critical patent/CN116174498A/en
Publication of CN116174498A publication Critical patent/CN116174498A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
    • B21B37/30—Control of flatness or profile during rolling of strip, sheets or plates using roll camber control
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/30—Computing systems specially adapted for manufacturing

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)

Abstract

The invention provides a roll wear error checking method and a system based on edge calculation, which are based on the automatic angle of how to realize the roll wear error statistical checking process, follow the time line and the flow line of data generation, redesign the roll wear error statistical checking flow, clarify the roles of departments such as a second stage department and a grinding roll department in the roll wear error checking process, introduce the edge calculation into the roll wear error checking process, realize the full-automatic operation of the roll wear error checking, and solve the roll wear data cutoff problem which puzzles the production of hot rolled plate and strip for a long time. The method is suitable for model parameter optimization work when the convexity control hit rate of the hot rolled plate needs to be improved, and particularly is used when a calculation result and an actual measurement result of a hot rolled secondary wear model have larger errors. Errors of the calculated result and the actually measured result of the secondary abrasion model are reduced, and influences of the calculated error of the abrasion model on plate shape setting of the secondary model are reduced to the greatest extent.

Description

Roller wear error checking method and system based on edge calculation
Technical Field
The invention relates to the technical field of automatic control, in particular to a roll wear error checking method and system based on edge calculation.
Background
The production of the plate strip mainly comprises two stages of hot rolling and cold rolling, and the two stages of hot rolling are mainly set by a semi-open loop setting model and mainly set by a closed loop setting model due to the difference of a plurality of factors such as feeding of the two stages. In the setting process of the shape of the two-stage model in the hot rolling stage, the thermal expansion and the roller abrasion of the roller are calculated by adopting a half-theoretical half-empirical model, and in the practical use process, as the design concept and the model checking method of the model are not understood, a plurality of hot rolled strip production factories only finish preliminary checking by a two-stage model delivery company when the model is delivered, and no model calibration work is performed. Most hot rolled strip production factories and even the whole life cycle do not carry out model check, so that the convexity hit rate of products is reduced, the competitiveness of the products is reduced, and huge economic losses are caused for enterprises. See the prior art roll wear error analysis flow chart of fig. 1.
The method has the advantages that the roll abrasion model of the hot rolled strip production plant is studied deeply, after the parameter checking flow of the roll abrasion model of the hot rolled strip production plant is carded in detail, the reason that the abrasion model is not checked by the hot rolled strip production plant is determined mainly by the following points:
(1) The roll grinding process and the roll abrasion process have serious hysteresis, the degree of automation is not high, the abrasion data of many hot rolling factories also need to be stored in paper, the data input cannot be automated, and the automatic data transmission is more difficult to realize.
(2) In the process of checking the wear of the hot rolled strip roller, a large amount of manual operations are needed, such as the acquisition of grinding curves, the search of rolling actual results, the acquisition of secondary calculation results corresponding to a rolling schedule, and the like, the process is complex and complicated, a plurality of departments such as secondary departments, grinding rollers and the like are involved, the departments belong to a flat state, and the mutual communication cannot be well completed, so that the breakage of a data chain is caused.
(3) The model parameter correction coefficient of the roller abrasion in the second-stage model of the hot rolled plate strip is generally responsible for a second-stage model department and is irrelevant to a roller abrasion workshop of the hot rolled plate strip, so that the responsibility is ambiguous, and the parameter correction flow of the roller abrasion model is ruptured.
In the traditional roller wear error statistics and check process, each link needs to be manually involved in judgment or data tracking, the overall efficiency is low, and automation and intellectualization cannot be realized.
Disclosure of Invention
In order to solve the technical problems of the background technology, the invention provides a roller wear error checking method and a roller wear error checking system based on edge calculation, which are based on the automatic angle of how to realize the roller wear error statistics checking process, follow the time line and the flow line of data generation, redesign the roller wear error statistics checking flow, clarify the roles of departments such as a second stage department and a grinding roll department in the roller wear error checking process, introduce the edge calculation into the roller wear error checking process, realize the full-automatic operation of the roller wear error checking, and solve the roller wear data cutoff problem which puzzles the hot rolled plate belt production for a long time.
In order to achieve the above purpose, the invention is realized by adopting the following technical scheme:
a roll wear error checking method based on edge calculation comprises the following steps:
step 1: the root plate shape setting model, namely the SSU model, transmits the wear calculated value data of each rolling production to an edge calculation system for checking the roller wear;
step 2: the edge computing system transmits the abrasion computing values of different rolling productions to corresponding roller data in a roller database;
step 3: when the roller is ground, the data of the grinding is transmitted to an edge computing system by an operator;
step 4: the edge computing system or the manual work judges the accuracy of the data recorded during the roller grinding, determines whether the reorganized data is credible and usable, cleans the data, and eliminates invalid and error data;
step 5: the edge computing system automatically computes the actual wear value of the roller according to a built-in algorithm and rules;
step 6: the edge computing system automatically computes a secondary model correction coefficient according to the actual wear value of the rolling schedule single roller and the grinding computing value of the rolling schedule single SSU;
step 7: and (3) correcting the correction coefficient of the secondary model by using an edge computing system regularly to finish the automatic checking work of the roller abrasion error.
Further, the method adjusts the flow of reversely searching the required data by taking the result of the original roller abrasion error analysis as an index into the operation flow of a time line and a flow line generated by the data.
In step 4, the edge computing system judges whether the curve is available according to the abrasion curve of manual grinding in an image recognition mode, performs data cleaning, and eliminates invalid and erroneous data.
The invention also provides a system for the roll wear error checking method based on edge calculation, which comprises a rolling production secondary control system, wherein a secondary model is arranged in the rolling production secondary control system, the system also comprises an edge server, the edge server is in communication connection with the rolling production secondary control system, an edge calculation system is arranged in the edge server, and a software model of the roll wear error checking method is arranged in the edge calculation system.
Compared with the prior art, the invention has the beneficial effects that:
1) The method is used for checking and optimizing the set parameters of the conventional two-stage model roll wear calculation model of the hot rolled strip, and is particularly suitable for optimizing the model parameters when the hot rolled strip convexity control hit rate needs to be improved, especially when the calculation result and the actual measurement result of the two-stage wear model have larger errors. The use of the technology can reduce the errors of the calculated result and the actually measured result of the secondary wear model, complete the periodic automatic calibration work and furthest reduce the influence of the calculated error of the wear model on the plate shape setting of the secondary model;
2) The invention adjusts the flow of reversely searching the needed data by taking the result of the original roller abrasion error analysis as an index into the operation flow of a time line and a flow line generated by the data, and the method is convenient for realizing the automatic transmission of the data;
3) According to the invention, from the automatic point of how to realize the roller wear error statistical checking process, the roller wear error statistical checking process is redesigned, the manual operation in the whole process is reduced to the maximum extent, and the closed cyclization of roller wear is improved;
4) The method does not need to modify the existing SSU and other models, only needs to introduce the calculated value of the SSU into the edge calculation system of the roller abrasion, and has high portability and wide adaptability.
Drawings
FIG. 1 is a flow chart of a prior art roll wear error analysis referred to in the background;
fig. 2 is a flow chart of the roll wear error analysis based on edge calculation of the present invention.
Detailed Description
The following detailed description of the embodiments of the invention is provided with reference to the accompanying drawings.
As shown in fig. 2, a roll wear error checking method based on edge calculation includes the following steps:
step 1: the root plate shape setting model, namely the SSU model, transmits the wear calculated value data of each rolling production to an edge calculation system for checking the roller wear;
step 2: the edge computing system transmits the abrasion computing values of different rolling productions to corresponding roller data in a roller database;
step 3: when the roller is ground, the data of the grinding is transmitted to an edge computing system by an operator;
step 4: the edge computing system or the manual work judges the accuracy of the data recorded during the roller grinding, determines whether the reorganized data is credible and usable, cleans the data, and eliminates invalid and error data;
step 5: the edge computing system automatically computes the actual wear value of the roller according to a built-in algorithm and rules;
step 6: the edge computing system automatically computes a secondary model correction coefficient according to the actual wear value of the rolling schedule single roller and the grinding computing value of the rolling schedule single SSU;
step 7: and (3) correcting the correction coefficient of the secondary model by using an edge computing system regularly to finish the automatic checking work of the roller abrasion error.
Further, the method adjusts the flow of reversely searching the required data by taking the result of the original roller abrasion error analysis as an index into the operation flow of a time line and a flow line generated by the data.
In step 4, the edge computing system judges whether the curve is available according to the abrasion curve of manual grinding in an image recognition mode, performs data cleaning, and eliminates invalid and erroneous data.
The invention also provides a system for the roll wear error checking method based on edge calculation, which comprises a rolling production secondary control system, wherein a secondary model is arranged in the rolling production secondary control system, the system also comprises an edge server, the edge server is in communication connection with the rolling production secondary control system, an edge calculation system is arranged in the edge server, and a software model of the roll wear error checking method is arranged in the edge calculation system.
Specific examples:
the method and the device for checking the roller wear error based on edge calculation are exemplified by parameter optimization in a certain hot rolling production line:
1. adding hardware and adding an edge computing server machine;
2. newly-added software, developing a responsive roller wear error checking analysis model based on an edge computing server;
3. after the secondary model finishes single rolling of the rolling schedule, transmitting the data such as the roller wear data calculated by the SSU, the roller number, the roller diameter, the roller rolling mileage, the roller rolling block number and the like to an edge calculation server;
4. the edge computing system transmits the wear computing values of different rolling productions to corresponding roller data in a roller database;
5. the grinding rollers cool the rollers after being taken off, then the rollers are ground by a grinding machine, and data such as measured values of roller abrasion, grinding curves and the like are transmitted to an edge calculation server through a system between the grinding rollers;
6. the edge calculation server judges whether the curve is available or not in a manual or image recognition mode according to the manually ground abrasion curve, and performs data cleaning to remove useless data;
7. the edge computing system automatically computes the actual wear value of the roller according to a built-in algorithm and rules;
8. the edge computing system automatically computes a secondary model correction coefficient according to a built-in algorithm through an actual measurement value and an error computing value of a computing value;
9. and (3) correcting the correction coefficient of the secondary model by using an edge computing system periodically by using a manual (or edge computing system) to finish the automatic checking work of the roller wear error. Here, a judgment is made according to whether the rights are fully developed in the field.
The results show that: the method is used for checking and optimizing the set parameters of the conventional two-stage model roll wear calculation model of the hot rolled strip, and is particularly suitable for optimizing the model parameters when the hot rolled strip convexity control hit rate needs to be improved, especially when the calculation result and the actual measurement result of the two-stage wear model have larger errors. The use of the technology can reduce the errors of the calculated result and the actually measured result of the secondary wear model, complete the periodic automatic calibration work and furthest reduce the influence of the calculated error of the wear model on the plate shape setting of the secondary model.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein. The solutions in the embodiments of the present application may be implemented in various computer languages, for example, object-oriented programming language Java, and an transliterated scripting language JavaScript, etc.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various modifications and variations can be made in the present application without departing from the spirit or scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims and the equivalents thereof, the present application is intended to cover such modifications and variations.

Claims (4)

1. The roll wear error checking method based on edge calculation is characterized by comprising the following steps of:
step 1: the root plate shape setting model, namely the SSU model, transmits the wear calculated value data of each rolling production to an edge calculation system for checking the roller wear;
step 2: the edge computing system transmits the abrasion computing values of different rolling productions to corresponding roller data in a roller database;
step 3: when the roller is ground, the data of the grinding is transmitted to an edge computing system by an operator;
step 4: the edge computing system or the manual work judges the accuracy of the data recorded during the roller grinding, determines whether the reorganized data is credible and usable, cleans the data, and eliminates invalid and error data;
step 5: the edge computing system automatically computes the actual wear value of the roller according to a built-in algorithm and rules;
step 6: the edge computing system automatically computes a secondary model correction coefficient according to the actual wear value of the rolling schedule single roller and the grinding computing value of the rolling schedule single SSU;
step 7: and (3) correcting the correction coefficient of the secondary model by using an edge computing system regularly to finish the automatic checking work of the roller abrasion error.
2. The method for checking the roller wear error based on the edge calculation according to claim 1, wherein the method adjusts the flow of reversely searching the required data by taking the result of the original roller wear error analysis as an index to the operation flow of a time line and a flow line generated by the data.
3. The method for checking the roller wear error based on the edge calculation according to claim 1, wherein in the step 4, the edge calculation system judges whether the curve is available or not through an image recognition mode according to a manually ground wear curve, performs data cleaning, and eliminates invalid and erroneous data.
4. The system for the roll wear error checking method based on edge calculation, which is used for the system for checking the roll wear error based on the edge calculation, comprises a rolling production secondary control system, wherein a secondary model is arranged in the rolling production secondary control system, and is characterized by further comprising an edge server, wherein the edge server is in communication connection with the rolling production secondary control system, an edge calculation system is arranged in the edge server, and a software model of the roll wear error checking method is arranged in the edge calculation system.
CN202310196000.2A 2023-03-03 2023-03-03 Roller wear error checking method and system based on edge calculation Pending CN116174498A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310196000.2A CN116174498A (en) 2023-03-03 2023-03-03 Roller wear error checking method and system based on edge calculation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310196000.2A CN116174498A (en) 2023-03-03 2023-03-03 Roller wear error checking method and system based on edge calculation

Publications (1)

Publication Number Publication Date
CN116174498A true CN116174498A (en) 2023-05-30

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Application Number Title Priority Date Filing Date
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