Method and arrangement for guiding a paper or board web

Details Method and arrangement for guiding a paper or board web Method and arrangement for guiding a paper or board web

B - Operations, Transporting

65

H

B65H 23/02 (2006.01) B65H 23/28 (2006.01) D06C 3/02 (2006.01) D21F 1/36 (2006.01) D21F 7/00 (2006.01)

Patent

CA 2302159

Method for guiding a paper or board web in a paper manufacturing machine, a board manufacturing machine, or finishing units in connection with such machines, as well as an arrangement wherein the above- mentioned wire guide rolls in finishing units are used for guiding the web. According to the invention, web travel is guided by changing the travel position of at least one wire travelling in contact with the web such that the velocity vector of the wire at least at the point of contact of the web and the wire is directed sideways from the travel direction of the web center line when the web is brought onto the wire.

L'invention concerne un procédé de guidage d'une bande de papier ou de carton dans une machine de production de papier, une machine de production de carton ou des unités de finissage utilisées avec ces machines, ainsi qu'un dispositif dans lequel des rouleaux-guide de la toile dans les unités de finissage sont utilisés pour guider la bande. Selon l'invention, le déplacement de la bande est guidé par changement de la position de déplacement d'au moins une toile se déplaçant au contact de la bande, de manière que le vecteur de vitesse de la toile, au moins au point de contact de la bande et de la toile, soit dirigé latéralement à partir du sens de déplacement de la ligne médiane de la bande lorsque ladite bande est amenée sur la toile.

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