Apparatus for producing corrugated board

B - Operations – Transporting – 31 – F

Patent

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Details

B31F 1/20 (2006.01) B31F 1/00 (2006.01) B31F 1/10 (2006.01) B65D 65/40 (2006.01)

Patent

CA 2718984

An apparatus is provided for producing longitudinally corrugated product. The apparatus includes a guide roll for guiding a web of medium material, wherein at least a portion of the guide roll is adapted to be arranged at an angle relative to another portion of the guide roll. The apparatus further includes a plurality of flute forming bars oriented generally along a longitudinal axis of the web to define a first corrugating labyrinth effective to longitudinally corrugate the web to an intermediate geometry. The apparatus further includes a pair of corrugating rollers that cooperate to define, at a nip therebetween, a second corrugating labyrinth effective to longitudinally corrugate the web to a substantially final geometry. The apparatus further includes a web travel pathway for the web that follows a path around a portion of the guide roll, through the first corrugating labyrinth, and through the second corrugating labyrinth.

La présente invention concerne un appareil de fabrication de produit longitudinalement ondulé. Lappareil comprend un rouleau de guidage destiné à guider une feuille continue de matériau, au moins une partie du rouleau de guidage étant conçue pour être agencée à un angle par rapport à une autre partie du rouleau de guidage. Lappareil comprend en outre une pluralité de barres de formation de cannelure orientées généralement le long dun axe longitudinal de la feuille continue pour définir un premier labyrinthe dondulation efficace pour onduler longitudinalement la feuille continue en une géométrie intermédiaire. Lappareil comprend en outre une paire de rouleaux dondulation qui coopèrent pour définir, à une ligne de contact qui se trouve entre ces deux rouleaux, un second labyrinthe dondulation efficace pour onduler longitudinalement la feuille continue en une géométrie sensiblement finale. Lappareil comprend en outre un trajet de déplacement de feuille continue pour la feuille continue qui suit un trajet autour dune partie du rouleau de guidage, à travers le premier labyrinthe dondulation, et à travers le second labyrinthe dondulation.

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