A control method for automatic roll washing of cold rolling rolls

Abstract

The invention relates to the technology of washing of rolls, discloses a control method for automatically washing a cold rolling mill roll, and solves the problems that in the traditional art, a rollis cleaned manually, so that time and labor are consumed, and the cleaning effect is bad. The control method comprises the following steps of a, controlling the roll to be automatically pressed and leaned against a roll gap until the total rolling force reaches a certain numerical value; b, detecting whether the deviation value of the roll gap is within a certain range, if yes, entering a step d,and if no, entering a step c; c, under the condition that the total rolling force is enabled to be unchanged, correcting the roll gap deviation value, and returning to the step b; d, entering a roll being controlling way, and adjusting the roll bending force; e, starting a roll transmission speed control, increasing the roll transmission speed to a preset numerical value at a certain slope, and meanwhile, starting a spraying system to clean the roll; and f, continuing for a certain time, and finishing a roll automatic cleaning program. The control method is applied to automatic cleaning of rolls in a mill train, a temper mill and a galvanizing unit skin-pass rolling mill of a cold rolling production with a roll frame.

Description

technical field [0001] The invention relates to roll washing technology, in particular to a control method for automatic roll washing of cold rolling rolls. Background technique [0002] Every time the unit with rolls in the cold rolling mill replaces the rolls, there will be some dirt such as oil and iron filings on the roll surface. Oil stains and iron filings are attached to the surface of the strip, resulting in a great risk of product quality degradation and rejection; therefore, the process requires the operator to manually wipe and clean the roll surface after replacing the roll. This cleaning method It is time-consuming and labor-intensive, and the cleaning effect is not obvious, often accompanied by more dirt polluting the roll. Contents of the invention [0003] The technical problem to be solved by the present invention is to propose an automatic roll washing control method for cold rolling rolls, so as to solve the problems of time-consuming and labor-intensiv...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: to propose an automatic roll washing control method for cold rolling rolls, to solve the problems of time-consuming and labor-intensive manual cleaning of the rolls in the traditional technology, and the cleaning effect is not good

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