Automatic dynamic adjustment method for synchronous extension of loop of cold rolling continuous processing line

Abstract

The invention relates to an automatic dynamic adjustment method for synchronous extension of a loop of a cold rolling continuous processing line. The automatic dynamic adjustment method specifically comprises the following steps of: at a non-drift stage of an uncoiling machine, acquiring a pulse encoder signal on an inlet tension roller, calculating the actual traveling distance of strip steel and thereby judging the relative position of a weld joint and the loop, and automatically adjusting a synchronous extension set value of the loop; at a drift stage of the uncoiling machine, calculating length of strip steel to be replenished according to a target set value and a current actual value for the synchronous extension of the loop, comparing the length of the strip steel with that of the remaining strip steel on the inlet uncoiling machine, and automatically adjusting the synchronous extension set value of the loop; and finally, arranging a functional module in a cold rolling continuous processing line control system to realize an undisturbed automatic switching function of the synchronous extension set value of the loop. According to the automatic dynamic adjustment method, deviation of the strip steel in the loop can be prevented, and the strip breakage probability of the strip steel in the loop is reduced; the production efficiency of the processing line can be increased and the working intensity of operation personnel is reduced; and the disposal difficulty for strip breakage accidents in the loop can be reduced and the accident recovery time is shortened.

Description

technical field [0001] The invention relates to the field of cold-rolling continuous processing lines, in particular to an automatic dynamic adjustment method for the amount of looper synchronous sleeves in the cold-rolling continuous processing line. Background technique [0002] The process in the cold rolling continuous processing line unit is generally that the raw material coils are uncoiled first, welded with the forward strip steel, and then enter the process section for processing. After the process is completed, they are cut at the exit section and rolled into finished coils by the coiler. The treatment of the process section generally includes pickling, annealing, tin plating, galvanizing, degreasing, color coating and other process technologies. In the production process of the cold-rolled continuous processing line, in order to ensure the quality and output of cold-rolled products, the running speed of the strip steel in the process section should be kept as stab...

AI Technical Summary

Problems solved by technology

Although this method can meet the general production process requirements, it is easy to cause the deviation of the strip steel in the looper when the strip steel plate shape is poor or the installation accuracy of the mechanical equipment is low; In the case of a fixed value, the work intensity of the operator is increased, and the work efficiency of the operator is reduced; in addition, once the weld seam breaks at a larger position in the looper, it will increase the difficulty of accident handling and the time for accident recovery. Reduce the output per unit time of the processing line

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