Cutting device for a belt-like object

摘要

A cutting device for a belt-like object is characterized by a pair of feed rollers and another pair of feed rollers which hold from both sides an object being supplied to be cut in succession. The rollers rotate at the same speed and are mounted in a horizontal direction respectively above and below the cutting position. The rotation of a main shaft driven by a motor is transmitted to a driving shaft of the pair of feed rollers placed above the cutting position through the main driving wheel of a one-way clutch. The rotation of the main shaft is also transmitted to a driving shaft of another pair of feed rollers placed below the cutting position through a subordinate driving wheel of said one-way clutch. An accelerating system and an electromagnetic clutch are provided between said main shaft and said driving shaft of the lower feed rollers, and said electromagnetic clutch is actuated in synchronism with the cutting cycle of a blade provided at a position close to said cutting position for cutting said object to be cut periodically in a crossing direction. The driving shaft of the lower feed rollers is accelerated when said blade has moved from the starting position to cutting to the finishing position and when the edge of the following object to be cut has been caught by said lower feed rollers.