Single facer with small intermediate corrugating roll

Details Single facer with small intermediate corrugating roll Single facer with small intermediate corrugating roll

B - Operations, Transporting

31

F

B31F 1/28 (2006.01)

Patent

CA 2218537

The labyrinth path in the corrugating nip of a single facer is substantially reduced by utilizing a small diameter intermediate corrugating roll (12) captured between a pair of larger diameter conventional corrugating rolls (10, 11). The two large diameter rolls capture the smaller roll and 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 large diameter corrugating rolls.

La trajectoire en labyrinthe de la ligne de contact entre deux cylindres cannelé d'une machine pour la fabrication de carton ondulé simple face est sensiblement raccourcie grâce à l'utilisation d'un cylindre cannelé intermédiaire (12) de petit diamètre, pris entre deux cylindres cannelés classiques (10, 11) de gros diamètre. Les deux cylindres de gros diamètre bloquent entre eux le cylindre plus petit, empêchant ainsi qu'il ne plie sous le poids des charges d'ondulation. La machine à onduler peut fonctionner à vitesse élevée sans entraîner une augmentation de la trajectoire en labyrinthe et de la tension de la bande, caractéristique des cylindres cannelés de gros diamètre.

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