Method and equipment for controlling winding paper on reel of rotary press employs pivoted feelers to monitor surface and center of reel of paper

摘要

The method employs two of the feelers pivoting on the press frame (23). One feeler (24) monitors the position of the surface (U) of the paper reel relative to the frame and the other (25) the position of coil (33) center (Z). Their difference provides a measure of the diameter of the paper reel (D). The feelers can also take the form of ultrasonic or infrared beams