Improved single facer with small intermediate corrugating roll

Details Improved single facer with small intermediate corrugating roll Improved single facer with small intermediate corrugating roll

D - Textiles, Paper

21

F

D21F 9/00 (2006.01) B31F 1/28 (2006.01) D21F 11/12 (2006.01)

Patent

CA 2233889

The labyrinth path in the corrugating nip of a single facer is substantially reduced by utilizing a small diameter corrugating roll captured between a larger diameter conventional corrugating roll and a backing roll arrangement. The smaller diameter corrugating roll is captured to prevent bending thereof under corrugating loads. The corrugator may be operated at high speeds without the adverse increase in labyrinth path and web tension characteristic of a pair of large diameter corrugating rolls.

Le parcours de cannelage d'une machine de fabrication de carton ondulé simple face est considérablement réduit grâce à l'emploi d'un rouleau denté de faible diamètre placé entre un rouleau de cannelage et un rouleau d'appui de diamètres normaux. Le rouleau denté de faible diamètre est monté entre les deux autres rouleaux de façon à ce qu'il ne plie pas sous la charge. Cette disposition permet d'obtenir des vitesses élevées de fonctionnement sans les désavantages de la disposition classique à deux rouleaux dentés de grand diamètre, qui sont un allongement du parcours du carton sur les rouleaux dentés et une plus forte tension sur le carton.

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