Apparatus to shape moving webs

Details Apparatus to shape moving webs Apparatus to shape moving webs

B - Operations, Transporting

29

C

B29C 53/04 (2006.01) B21B 1/38 (2006.01) B21B 13/00 (2006.01)

Patent

CA 2666107

A rotating roller imparts complex curvature onto a web of material. The roller includes a flexible outer surface and a plurality of control rings inside the rotating roller. The control rings are mounted coaxial to a central shaft and are disposed side by side along an axial length of the shaft. The outside of each ring supports a substantially circular slice of the flexible outer surface of the rotating roller. Each control ring defines a diameter that may be changed independent from the diameter of the other control rings.

La présente invention concerne un rouleau rotatif conférant une courbure complexe à une bande de matériau. Le rouleau comprend une surface extérieure flexible et une pluralité de bagues de commande à l'intérieur du rouleau rotatif. Les bagues de commande sont montées co-axialement à un arbre central et sont disposées côte à côte le long d'une longueur axiale de l'arbre. L'extérieur de chaque bague soutient une tranche essentiellement circulaire de la surface extérieure flexible du rouleau rotatif. Chaque bague de commande définit un diamètre pouvant être changé indépendamment du diamètre des autres bagues de commande.

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