Roll cutting apparatus

B - Operations – Transporting – 23 – D

Patent

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Details

B23D 7/06 (2006.01)

Patent

CA 2527697

Apparatus for cutting an industrial-size roll of paper or other sheet material into two or more rolls. The apparatus includes a circular saw with a radius large enough to cut through such a roll in a single cut, leaving press-ready rolls that require no finish-trimming on the ends. The saw blade is mounted in a saw frame that travels along a carriage and positions the blade at any desired cutting position on the roll. The apparatus includes a support bed and load-bearing arms for supporting the weight of a large roll and keeping it in position during the cutting operation. Load/unload tables and a system of kicking cylinders guide the roll onto and off of the support bed. The saw frame is a tower that positions the saw blade above the roll at the desired cutting position, or a floor frame that positions the saw along side or beneath the roll at the desired cutting position. The apparatus further includes a finishing station for sanding the ends of cut rolls.

La présente invention concerne un appareil servant à couper en plusieurs rouleaux un rouleau de papier (ou d'un autre matériau) aux dimensions industrielles. L'appareil comporte une scie circulaire d'un rayon suffisant pour couper complètement un seul trait un tel rouleau, donnant des rouleaux dont les bouts n'ont pas besoins d'être rognés pour le montage sur les rotatives. La lame de scie est montée dans un châssis de scie qui se déplace le long d'un chariot et positionne la lame en n'importe quelle position souhaitée sue le rouleau. L'appareil comporte un berceau support et un bras porte charge pour supporter le poids d'un grand rouleau et le maintenir en position pendant l'opération de coupe. Des plateaux de chargement/déchargement et un système de galets à secousses guident le rouleau pour sa mise en place et son éviction du berceau support. Le châssis de scie est une tour qui positionne la lame de scie au-dessus du rouleau à la position de coupe souhaitée, ou un châssis plancher qui positionne la scie le long ou au-dessus du rouleau, à la position de coupe souhaitée. L'appareil comporte également un poste de finition pour le sablage des bouts des rouleaux coupés.

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