Web inspection and repair machine with rotary razor slitting

B - Operations – Transporting – 65 – H

Patent

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Details

B65H 35/02 (2006.01) B26D 1/143 (2006.01) B65H 23/00 (2006.01) B65H 37/00 (2006.01)

Patent

CA 2700438

A web processing machine permits slitting of a wide range of highly extensible materials with low Young's modulus of elasticity characteristics. The slitting function may be carried out under low elongating tensions while yielding highly accurate and repeatable width dimensions in the finished product. The machine incorporates a resiliently coated cylinder with extremely sharp and narrow rotating blades which are commonly adjusted into close contact with the coated cylinder. The blades are driven so that their peripheries slightly over-speed the web as it enters the first contact point of the coated cylinder and the blades as they rotate.

L'invention porte sur une machine de traitement de bande qui permet la coupe d'une large gamme de matériaux hautement extensibles ayant un faible module de Young de caractéristiques d'élasticité. La fonction de coupe peut être exécutée sous de faibles tractions d'allongement, tout en fournissant des dimensions de largeur très précises et reproductibles pour le produit fini. La machine incorpore un cylindre revêtu de manière élastique équipé de lames rotatives extrêmement tranchantes et étroites qui sont habituellement ajustées en contact étroit avec le cylindre revêtu. Les lames sont entraînées de telle sorte que leurs périphéries sont en légère survitesse par rapport à la bande lorsqu'elle arrive au premier point de contact du cylindre revêtu et des lames à mesure qu'elles tournent.

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