Patent ID: 7980505
Filing Date: 2011-07-19
Classification: B65H

Abstract:
1. A method of calculating a diameter of a continuous-material reel on a roller mounted on a swivel arm pivotable about a swiveling axis and rotating at a changeable winding speed, with a continuous material unwound from the roller and directed to a continuous-material machine or removed from a continuous-material machine and wound onto the roller, the method comprising the steps of: providing a reel-control system, said reel-control system having means for unwinding a continuous material from the roller and directing to a continuous-material machine or removing from a continuous-material machine and winding onto the roller; means for controlling a swivel motion of a swivel arm with which the roller is mountable on the swivel arm which is swivelable around a swiveling axis; means for calculating a diameter of the continuous-material reel on the roller; and means for determining a correction value for correcting a change in the angular speed, in response to a swivel motion of the swivel arm on which the roller is mounted; setting a winding speed as a function of a web-conveyance speed, and calculating a diameter of the continuous-material reel in the reel-control system; changing the winding speed when the swivel arm on which the roller is mounted is swiveled about its swiveling axis during a winding motion; incorporating a correction value for correcting a change in the winding speed in the calculation of the diameter of the continuous-material reel; and determining the correction value within the reel-control system.