Strip tail positioning control method for cold continuous rolling coiling machine

Abstract

The invention provides a strip tail positioning control method for a cold continuous rolling coiling machine. With the minimum strip tail positioning deviation as an objective function, accurate positioning control is performed on the strip tail length of the coiling machine by establishing a strip tail positioning speed calculation model, a primary positioning length calculation model and a secondary positioning length calculation model so that the best strip tail positioning effect can be achieved. By means of the method, the problem of inaccurate positioning caused by manual adjustment is solved; the calculation and control accuracy of the strip tail positioning position can be greatly improved; the positioning deviation is reduced to less than 0.05 m from 0.2 m; while the yield of cold-rolled strip steel is increased, the production efficiency and product quality of continuous rolling are improved, and the labor intensity of operators is greatly relieved. Original control equipment is fully utilized, so that investment for technology introduction is reduced; maintenance is easy; the strip tail positioning control method for the cold continuous rolling coiling machine is novel and suitable for industrial application.

Description

technical field [0001] The invention belongs to the field of steel rolling technology, and in particular relates to a method for controlling belt tail positioning of a cold continuous rolling coiler. Background technique [0002] After the cold-rolled strip is normally rolled, it is coiled into a steel coil of a certain diameter by a coiler after passing through the cold continuous rolling mill, the pinch roll before shearing, the flying shear, and the guide roller after shearing. In the strip rolling process, the entire area from the last stand of the tandem cold rolling mill to the coiler is called the exit of the rolling line, and the exit is the last link of the tandem cold rolling line. That is the final product of cold rolling. Carrousel double drum coilers are commonly used in modern steel companies. When the unit is threading the belt, thread the belt head onto the coiling mandrel. After the threading is completed, the wheel disc rotates 180° counterclockwise. The ...

AI Technical Summary

Problems solved by technology

[0005] The invention provides a strip tail positioning control method for a cold continuous rolling coiler, which aims to overcome the defect of inaccurate positioning caused by manual adjustment, realize accurate calculation and control of the strip tail positioning position, and improve the production efficiency of continuous rolling and product quality, and reduce labor intensity

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