Method for controlling web cutting

Details Method for controlling web cutting Method for controlling web cutting

G - Physics

05

D

164/31, 341/45

G05D 5/06 (2006.01) B23D 36/00 (2006.01) B26D 5/20 (2006.01)

Patent

CA 1046611

ABSTRACT OF THE DISCLOSURE A method is disclosed for controlling the speed of a rotary cutter to cut a continuously fed web accurately into predetermined lengths. A desired cutting length and the circumference of the rotary cutter are preset. The web speed detected is multiplied by a coefficient equal to the cutter circumference divided by the cutting length. The resultant ?ignal is compared with the cutter speed detected, and, if there is any difference, the cutter speed is corrected for accurate cutting. - 1 -

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