Edge cutting method based on continuous annealing process control automation system

Abstract

The invention relates to an edge cutting method based on a continuous annealing process control automation system, and belongs to the technical field of continuous annealing process control methods. According to the technical scheme, after data are collected, a PL / SQL development language is applied, parameter grouping data of the gap and the meshing amount of the required trimming shear, the scrap cutter and the steel type are imported into a continuous annealing process control automation system, corresponding trimming parameters are screened out in a program through a calling package according to the steel type and the thickness of a steel coil, and after the trimming parameters are screened out, the steel coil is subjected to continuous annealing process control. And calculating a numerical value required by edge cutting according to a formula for production. The device has the advantages of being high in flexibility, suitable for single or batch modification, capable of reducing personnel intervention and workload of operators, reasonable in design, simple in structure, convenient to use and the like, working efficiency is improved, production data are more accurate, a solid foundation is laid for production of high-quality steel, current technical requirements are better met, and the device is worthy of popularization and application. Good popularization and use values are realized.

Description

Technical Field

[0001] The invention relates to a trimming method based on a continuous retreat process control automation system, belonging to the technical field of continuous retreat process control methods. Background Art

[0002] The process control automation system plays a connecting role in the data transmission process of the continuous reeling system. It can be organically combined with the basic control automation system on the main production line through the first-level data communication, and can also communicate with the production control computer through Ethernet. The main functions of the process control automation system include: raw data input (PDI), set value calculation, steel coil tracking, communication with PLC, label printing, team management, roll changing, alarm and message management, measurement value data collection, etc.

[0003] A package is a database object, equivalent to a container. It combines logically related procedures, functions, variables, constants, and cursors into a larger unit. It can be referenced from other PL / SQL blocks. PL / SQL packages have information hiding and are only visible at the level related to algorithm and data structure design. The procedure description and procedure body can be combined into a program unit. The procedure description can also be separated from its procedure body. A procedure can also be defined in a package without a procedure description defined in the package description. In this way, the defined procedure is only used within the package.

[0004] In the previous production mode, operators were required to manually input trimming data based on their experience, but the trimming data required for strip steel required high accuracy, and operators had no way to manually control it. This method no longer meets today's production requirements and is excluded first. Another method is to set the trimming data through the MES system and send it to the process control automation system, which is not very flexible and it is more troublesome to modify the rules. Compared with these two methods, the database package has finer division of trimming parameters, higher efficiency, and greater flexibility. Therefore, it is necessary to develop a method for adding a trimming function based on the continuous retreat process control automation system. Summary of the invention

[0005] The purpose of the present invention is to provide a trimming method based on a continuous retreat process control automation system, which realizes the function of screening trimming parameters through the continuous retreat process control automation system, and then realizes the function of calculating trimming data by calling a database package, rather than using MES to set data. The method has high flexibility, is suitable for single or batch modification, reduces personnel intervention, and reduces the workload of operators. It has the characteristics of reasonable design, simple structure, and easy use, improves work efficiency, makes production data more accurate, lays a solid foundation for the production of high-quality steel, is more in line with current technical requirements, has good promotion and use value, and effectively solves the above-mentioned problems existing in the background technology.

[0006] The technical solution of the present invention is: a trimming method based on a continuous retreat process control automation system, comprising the following steps: Step 1: Collect the trimming parameters required for each type of steel on site according to the actual trimming conditions, and verify the accuracy of the collected data multiple times; Step 2: Group similar steel grades, and then create a new database table based on the steel grade grouping and thickness conditions; Step 3: Program in the database package, write the program for screening steel grade groups, the program for screening trimming parameters and the program for calculating trimming data. The program needs to be substituted with data for multiple tests before use; Step 4: When the process control automation system receives a new production plan, it first searches the STGR_GROUPS table in the database according to the steel type. If the corresponding steel type group can be found, the steel type group is selected and the next step is entered; if the corresponding steel type group cannot be found, the default value is used to calculate the trimming data; Step 5. After obtaining the steel type grouping, query the SP_SIDETRIMMER_TENSION table in the database according to the thickness of the roll entrance. If the corresponding trimming parameters can be screened out, calculate the trimming data according to the trimming formula for production; if the corresponding trimming parameters cannot be screened out, use the default values ​​to calculate the trimming data.

[0007] In the step 1, the collected data covers all steel types and thicknesses, including the clearance of the trimming shear, the amount of engagement, the crushing shear and the parameter grouping data of the steel type.

[0008] In the step 2, when creating a new database table, set the field type and primary key; make the collected data into an EXCEL table and import it into the STGR_GROUPS table and SP_SIDETRIMMER_TENSION table of the database.

[0009] In the step three, the PL / SQL development language is used for programming in the database package.

[0010] In the step 5, the trimming data is finally displayed on the HMI screen of the continuous retreat process control automation system.

[0011] The beneficial effects of the present invention are as follows: the function of screening trimming parameters is realized by the continuous retreat process control automation system, and the function of calculating trimming data is realized by calling a database package, instead of using MES to set data. The present invention has high flexibility, is suitable for single or batch modification, reduces personnel intervention, and reduces the workload of operators. It has the characteristics of reasonable design, simple structure, and easy use, improves work efficiency, makes production data more accurate, lays a solid foundation for the production of high-quality steel, is more in line with current technical requirements, and has good promotion and use value. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a flow chart of the present invention. DETAILED DESCRIPTION

[0013] In order to make the purpose, technical solutions and advantages of the invention implementation cases clearer, the technical solutions in the implementation cases of the present invention will be clearly and completely described below in conjunction with the drawings in the implementation cases. Obviously, the implementation cases described are only a small part of the implementation cases of the present invention, rather than all the implementation cases. Based on the implementation cases in the present invention, all other implementation cases obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0014] A trimming method based on a continuous retreat process control automation system comprises the following steps: Step 1: Collect the trimming parameters required for each type of steel on site according to the actual trimming conditions, and verify the accuracy of the collected data multiple times; Step 2: Group similar steel grades, and then create a new database table based on the steel grade grouping and thickness conditions; Step 3: Program in the database package, write the program for screening steel grade groups, the program for screening trimming parameters and the program for calculating trimming data. The program needs to be substituted with data for multiple tests before use; Step 4: When the process control automation system receives a new production plan, it first searches the STGR_GROUPS table in the database according to the steel type. If the corresponding steel type group can be found, the steel type group is selected and the next step is entered; if the corresponding steel type group cannot be found, the default value is used to calculate the trimming data; Step 5. After obtaining the steel type grouping, query the SP_SIDETRIMMER_TENSION table in the database according to the thickness of the roll entrance. If the corresponding trimming parameters can be screened out, calculate the trimming data according to the trimming formula for production; if the corresponding trimming parameters cannot be screened out, use the default values ​​to calculate the trimming data.

[0015] In the step 1, the collected data covers all steel types and thicknesses, including the clearance of the trimming shear, the amount of engagement, the crushing shear and the parameter grouping data of the steel type.

[0016] In the step 2, when creating a new database table, set the field type and primary key; make the collected data into an EXCEL table and import it into the STGR_GROUPS table and SP_SIDETRIMMER_TENSION table of the database.

[0017] In the step three, the PL / SQL development language is used for programming in the database package.

[0018] In the step 5, the trimming data is finally displayed on the HMI screen of the continuous retreat process control automation system.

[0019] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the above embodiments, a person skilled in the art should understand that the technical solutions described in the above embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A trimming method based on a continuous retreat process control automation system, characterized in that The following steps are involved: Step 1: Collect the trimming parameters required for each type of steel on site according to the actual trimming conditions, and verify the accuracy of the collected data multiple times; Step 2: Group similar steel grades, and then create a new database table based on the steel grade grouping and thickness conditions; Step 3: Program in the database package, write the program for screening steel grade groups, the program for screening trimming parameters and the program for calculating trimming data. The program needs to be substituted with data for multiple tests before use; Step 4: When the process control automation system receives a new production plan, it first searches the STGR_GROUPS table in the database according to the steel type. If the corresponding steel type group can be found, the steel type group is selected and the next step is entered; if the corresponding steel type group cannot be found, the default value is used to calculate the trimming data; Step 5: After obtaining the steel type grouping, query the SP_SIDETRIMMER_TENSION table in the database according to the thickness of the roll inlet. If the corresponding trimming parameters can be screened out, calculate the trimming data according to the trimming formula for production; If the corresponding trimming parameters cannot be screened out, the default values ​​are used to calculate the trimming data.

2. The trimming method based on the continuous retreat process control automation system according to claim 1 is characterized in that: In the step 1, the collected data covers all steel types and thicknesses, including the clearance of the trimming shear, the amount of engagement, the crushing shear and the parameter grouping data of the steel type.

3. The trimming method based on the continuous retreat process control automation system according to claim 1 is characterized in that: In the step 2, when creating a new database table, set the field type and primary key; make the collected data into an EXCEL table and import it into the STGR_GROUPS table and SP_SIDETRIMMER_TENSION table of the database.

4. The trimming method based on the continuous retreat process control automation system according to claim 1 is characterized in that: In the step three, the PL / SQL development language is used for programming in the database package.

5. The trimming method based on the continuous retreat process control automation system according to claim 1, characterized in that: In the step 5, the trimming data is finally displayed on the HMI screen of the continuous retreat process control automation system.

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