A kind of coiling method of steel coil

Abstract

The invention discloses a coiling method of a steel coil, which belongs to the technical field of automatic control. In order to solve the problem of the loose outer ring of the steel coil, the present invention calculates the three lifting actions of the steel coil trolley when the strip tail is a certain distance from the stop position according to the current steel coil diameter; length, when the strip tail is about to leave the upper pressure roller of the coiler, the coil trolley automatically triggers three lifts to touch the strip, thus completing the coil coiling. The advantage of the present invention is that it effectively avoids the problem of the loose outer ring of the steel coil, improves the coil receiving speed of the steel coil trolley, and reduces the labor frequency that the operator needs to frequently manually jog the coiler to rotate one circle to eliminate the loose outer ring of the steel coil , to ensure continuous and stable high-level automated production.

Description

technical field [0001] The method belongs to the technical field of automatic control, and provides a method for hoisting a steel coil trolley in advance and splicing coils during the tail-flicking process of a coiler. When the coil trolley is not completed, the coil trolley automatically lifts and contacts the steel coil, so as to ensure that the outermost strip of the steel coil is not loose when 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. There is only one upper pressure roller on each coiler. The upper pressure roller is pressed to the 10 o'clock direction of the steel coil. When the take-up machine is running, its upper pressure roller is pressed down, and at the same time, the steel coil trolley is lifted for a second time. At the end of the secondary lifting of the steel coil trolley, there is a gap of 1 t...

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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