CONTROL METHOD FOR AUTOMATIC SPLICING OF THE UNWINDER

摘要

PURPOSE: A method for controlling the automatic splicing of an unwinder is provided to minimize the defective rate of products by adjusting a tail length regardless of the speed of production. CONSTITUTION: A method for controlling the automatic splicing of an unwinder is as follows. The position of a material contact part located at the starting point of a waiting material is sensed(150). The operation of a material contact roll is controlled to press a working material on the waiting material depending on the sensed signal(160). The operation of a cutting knife is controlled to cut the working material in consideration of pre-set production speed, the diameter of the waiting material, the position constant of material contact part, a set tail length, and the actual reaction time of the cutting knife(170).