PURPOSE: To feed a raw sheet to a cutter regularly in the same position at a right angle to the cutter by providing a snaking preventing device for raw sheet which consists of a pair of rollers and regulates the angle formed between the rollers on the basis of the output signal from a sensor.
CONSTITUTION: A snaking preventing device 15 changing the angle formed between rollers on the basis of output signals from sensors 16, 20, 22 is provided to prevent the snaking of a raw sheet. Further, a cutter driving motor 26 and a raw roll delivering driving motor 24 for delivering a raw sheet 12 from a raw sheet reel 11 are interlocked at a fixed speed ratio. Consequently, the snaking of the raw sheet by the unevenness in thickness of amorphous metal foil and the unevenness in winding end of the raw sheet reel is corrected, and the raw sheet can be fed to the cutter regularly in the same position at a right angle to the cutter. Further, the rotating speed of the raw sheet delivering driving motor is automatically regulated according to the rotating speed of the cutter driving motor, whereby the raw sheet is sent to the cutter at the same tension without excessive stretching nor looseness at the time of start.
HIROTA TOSHIO
MIMURA TAKETO
