Patent ID: 7832677
Filing Date: 2010-11-16
Classification: B65H

Abstract:
1. A method for controlling a cross-direction nip profile of a reeling nip in a reeler in which the reeling nip is formed by a reeling core or a growing machine reel and at least one loop of an endless supporting member, which endless supporting member is continuous in a cross-direction which is the direction of an axis of the reeling core, the method comprising the steps of: measuring variables proportional to tension of the endless supporting member in a cross-direction; determining a cross-direction tension profile of the endless supporting member on the basis of the measured variables; determining a cross-direction nip profile of the reeling nip based on the cross-direction tension profile of the endless supporting member; controlling the cross-direction nip profile of the reeling nip by adjusting the cross-direction tension profile of the endless supporting member; wherein the cross-direction tension profile of the endless supporting member is adjusted by a guide roll that is contained within the loop of the endless support member, and about which guide roll the endless support member wraps in contact with the said guide roll; and wherein the tension profile is adjusted by changing the shape of the guide roll.