Patent ID: 6609351
Filing Date: 2003-08-26
Classification: B65H

Abstract:
A band feed length adjusting device in a packing machine in whicha plurality of detecting portions are provided at regular intervals on a side surface of a touch roller which is opposed to a normal rotating roller or a reverse rotating roller and serves to selectively abut on one of the two rollers, thereby constituting band feeding means or band reverse rotating means, and furthermore, a sensor for detecting the detecting portions is provided to face an outer periphery of the touch roller, wherein when an amount of the band led from a band reel through a driving operation of the band feeding means for winding onto an object to be packed is insufficient, the band having a length corresponding to the shortage is led from the band reel through a manual operation and the detecting portions of the touch roller thus moved are detected by the sensor and a result of the detection is supplied to a control section, thereby automatically adjusting a band length required for subsequent band feeding.