Coiling method of steel coil

Abstract

The invention discloses a coiling method of a steel coil, belongs to the technical field of automatic control, and aims to solve the problem that an outer ring of the steel coil is loose. According to the method, three lifting actions of a steel coil trolley are triggered when a certain distance is calculated from a strip tail to a stop position according to a current diameter of the steel coil; and in the drifting process, a residual length of a strip tail of strip steel is calculated in real time, and when the strip tail of the strip steel is about to leave an upper pressing roller of a coiling machine, the steel coil trolley automatically triggers three times of lifting to make contact with the strip steel, so that steel coil coiling is completed. The method has the advantages that the problem that the outer ring of the steel coil is loosened is effectively solved, a coil receiving speed of the steel coil trolley is increased, the labor frequency that an operator needs to frequently and manually inch the coiling machine to rotate by one circle to eliminate loosening of the outer ring of the steel coil is reduced, and continuous and stable high-level automatic production is guaranteed.

Description

technical field [0001] The method belongs to the technical field of automatic control, and provides a method for lifting a steel coil trolley in advance for coil connection during the tail-flicking process of a coiler. Make the steel coil trolley automatically lift up and touch the steel coil when the tail-flick of the coiler is not completed, so as to ensure that the strip steel in the outermost ring of the coil is not loose when the tail-flick of the coiler is completed, which solves the problem of the steel coil The long-standing problem of loose outer ring. Background technique [0002] There are two coilers at the continuous exit of cold rolling, and each coiler has only one upper pressure roller, which is pressed to the 10 o'clock direction of the steel coil. The commonly used coiling mode of the coiler is upper coiling, and the coil When the take-up machine is flicking, its upper pressure roller is pressed down, and at the same time, the steel coil trolley is lifted ...

AI Technical Summary

Problems solved by technology

At this time, because the tail of the strip is in a loose state, the outermost ring of the steel coil is not tight.

For thin strip steel, after the loose strip steel in the outer ring of the steel coil is bundled by a baler, the outermost ring of the strip steel is prone to wrinkle. For thicker and harder DP steel, the outer ring of the steel coil The gap directly leads to the failure of subsequent packaging. It is often necessary for the operator to temporarily stop the automatic step of the trolley receiving the coil after the trolley receives the coil, and then manually turn the coil on the coiler one more time to wind the outer ring of the steel coil tightly. Then continue the automatic step of coil receiving by trolley. When producing thick strip steel, the unwinding speed is relatively fast, and the production operators need to manually unload the coils of the two coilers frequently.

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