公开(公告)号：US10526155B2

公开(公告)日：2020-01-07

申请号：US15933164

申请日：2018-03-22

Applicant: Valmet Technologies Oy

Inventor： Jari Paanasalo ,  Kenneth Åkerlund ,  Mikko Veijalainen

IPC: B65H18/26 ,  B65H23/198 ,  B65H18/20 ,  B65H18/10 ,  B65H20/02

Abstract: This invention relates to a method of controlling the operation of a winder in which method while forming at least one fiber web roll the fiber web is brought on the web roll via a nip formed by a first support drum and the web roll, which first support drum is driven by a first drive assembly (20) applying controllable torque to the drum and the winding force is applied to the web roll by a second drive assembly (22). In the method the second drive assembly (22) is controlled based on the indicative speed difference of the second drive assembly (22) and setting a friction coefficient for determination of maximum winding force.

公开(公告)号：US20180273328A1

公开(公告)日：2018-09-27

申请号：US15933164

申请日：2018-03-22

Applicant: Valmet Technologies Oy

Inventor： Jari Paanasalo ,  Kenneth Åkerlund ,  Mikko Veijalainen

IPC: B65H18/26 ,  B65H18/10 ,  B65H20/02

CPC classification number: B65H18/26 ,  B65H18/10 ,  B65H18/20 ,  B65H20/02 ,  B65H23/198 ,  B65H2513/106 ,  B65H2515/31 ,  B65H2553/22 ,  B65H2220/02 ,  B65H2220/01

Abstract: This invention relates to a method of controlling the operation of a winder in which method while forming at least one fiber web roll the fiber web is brought on the web roll via a nip formed by a first support drum and the web roll, which first support drum is driven by a first drive assembly (20) applying controllable torque to the drum and the winding force is applied to the web roll by a second drive assembly (22). In the method the second drive assembly (22) is controlled based on the indicative speed difference of the second drive assembly (22) and setting a friction coefficient for determination of maximum winding force.