The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 16, 2019
Filed:
Feb. 17, 2017
Valmet S.p.a., Milan, IT;
Fabrizio Bartolini, Lucca, IT;
VALMET S.P.A., Milan, IT;
Abstract
The present invention relates to a w winder () for winding a web roll () from a fibrous web such as a paper web or a web of non-woven material paper (). The winder () comprises two support rolls () for supporting the web roll () during reeling and a core shaft () for winding the paper reel (). At each longitudinal end of the core shaft (), there is a carrier chuck () in which the core shaft () is rotatably journalled. The carrier chucks to are arranged to be movable in a frame towards or away from the support rolls () and a rider roll () is arranged to be capable of acting against the web roll () being wound. The rider roll () is carried by a rider roll beam () and the rider roll beam () is arranged to be movable in the frame () such that the rider roll () can be moved towards or away from the support rolls (). There is at least one actuator () for moving the rider roll beam () towards or away from the support rolls (); and at least one load cell () arranged to detect the force between the rider roll () and the web roll (). The winder () also comprises at least one actuator () for moving the carrier chucks () of the core shaft () independently of the rider roll beam () and the winder () comprises at least one load cell () arranged to detect the force with which the carrier chucks () act on the core shaft (). The winder () also comprises a logic control system () connected to the load cells () such that the logic control system () receives measured values for the force between the web roll () and the rider roll () and the force with which the carrier chucks () act on the core shaft (). The logic control system () is programmed to control movement of the carrier chucks () and the rider roll beam () such that the sum of the forces detected from the load cells () and the force resulting from a calculated weight of the web roll () corresponds to a set value for the force between the web roll () and the support rolls (). The invention also relates to a corresponding method for operating the winder.