A strip tail positioning control method for cold tandem coiler

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 strip tail positioning control method for a cold continuous rolling coiler. Background technique [0002] After the cold-rolled strip is rolled normally, it passes through the cold tandem mill, the pinch roll before shearing, the flying shear, and the guide roll after shearing, and is coiled into a steel coil with a certain diameter by a coiler. In the strip rolling process, the entire area from the last stand of the cold tandem mill to the coiler is called the exit of the rolling line. The exit is the last link of the cold tandem rolling line. The steel coil coiled on the coiler It is the final product of cold rolling. Modern iron and steel enterprises generally adopt Carrousel double-drum coiler. When the unit is threading, thread the tape head onto the threading and coiling mandrel. After the tape threading is completed, the wheel rotates 180° counterclo...

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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