Method and device in threading of paper web

Details Method and device in threading of paper web Method and device in threading of paper web

D - Textiles, Paper

21

F

D21F 7/00 (2006.01) D21G 9/00 (2006.01)

Patent

CA 2288849

The invention relates to a method in a paper machine in threading of paper web, in which method a narrower tail (T) is separated from the edge of the paper web and transferred to threading guiding means arranged in connection with the moving parts of a machine conveying the paper web. Before transferring the tail (T) to the threading devices, its free length is shortened, for example by crinkling, wherein its tensile stretch is increased and bending stiffness reduced.

Cette invention se rapporte à un procédé utilisé dans une machine à papier pour l'enfilage d'une bande de papier, ce procédé consistant à séparer une extrémité de queue plus étroite (T) du bord de la bande de papier et à la transférer jusqu'à un guide d'enfilage placé en coopération avec les parties mobiles d'une machine transportant la bande de papier. Avant de transférer l'extrémité de queue (T) jusqu'aux dispositifs d'enfilage, on raccourcit sa longueur libre, par exemple par plissage, de sorte que son allongement à la traction est accru et sa rigidité à la flexion réduite.

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