Being control method of the batcher pinch roll which

摘要

PROBLEM TO BE SOLVED: To provide a method and device for controlling the pinch roll of a winding machine so as to keep the excellent winding shape of the winding machine by keeping pressing force constant at a part where the plate thickness at the tail end of a steel plate is abruptly changed.;SOLUTION: The device for controlling the pinch roll includes: a plate thickness gage 2 for measuring the thickness of a material to be rolled; a material detector 3 and a pinch roll rotation detector 4 for specifying to which position in the longitudinal direction of the measured thickness value of the material corresponds; a thickness recorder 5 for storing or recording the measured thickness value between the set distances to the most-tail end 19 of the material; and a gap setting device 6 which locks on the measured thickness value at the predetermined distance from the most-tail end to define the thickness lock-on value, computes the thickness deviation between the measured thickness value after the thickness lock-on value and the thickness lock-on value, and sets the gap position on the basis of the computed thickness deviation.;COPYRIGHT: (C)2010,JPO&INPIT