Patent ID: 7959102
Filing Date: 2011-06-14
Classification: B65H

Abstract:
1. A method for producing a reel of a web of flexible material, the method comprising: guiding the web of flexible material over a contact roller of a winder; winding the web of flexible material onto a winding core; pressing the contact roller onto the reel with a contact pressure thereby keeping continuous contact with said reel; moving the winding core away from the contact roller at a reference displacement speed determined independently of the contact pressure and corresponding to a reference radius of the reel until a predetermined winding progress of the reel is achieved; wherein, during winding, the contact roller remains in a reference position if the reference radius corresponds to an actual radius of the reel; wherein if the actual radius of the reel deviates from the reference radius, the contact roller is correspondingly displaced from the reference position due to continuous contact with the reel; increasing the reference displacement speed when the contact roller is away from the reference position in a direction away from the winding core; and decreasing the reference displacement speed when the contact roller is away from the reference position in a direction towards the winding core.