Device and method for working the edges of pages

B - Operations – Transporting – 42 – C

Patent

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B42C 5/00 (2006.01) B42C 9/00 (2006.01)

Patent

CA 2312232

The present invention concerns a device (1) for machining sheet edges (3) during bookmaking, with at least one cutting tool (10) for machining the sheet edges (3) of an inner book (2) running across the cutting tool (10), such that paper fibers are exposed along the sheet edges (3). The invention provides that the cutting tool (10) has at least two axles (20, 30) arranged in pairs at a slanting position angle to each other and turning in opposite directions, wherein the axles (30) arranged to the left of the inner book in the direction of travel (L) of the inner book (2) can turn clockwise and the axles (20) arranged to the right of the inner book in the direction of travel (L) of the inner book (2) can turn counterclockwise, and wherein each axle (20, 30) is outfitted with one or more milling disks (21, 31), which have cutting devices (22, 32) on their outer circumference. Moreover, the present invention concerns a method for operating such a device.

Dispositif (1) pour travailler le bord des feuilles (3) pendant la fabrication de livres, comprenant au moins un outil de coupe (10) pour travailler le bord des feuilles (3) d'un livre (2) de façon à exposer les fibres du papier le long du bord des feuilles (3) en les passant sur cet outil de coupe (10). L'outil de coupe (10) comprend au moins une paire d'axes (20, 30) disposés obliquement l'un par rapport à l'autre et tournant dans des directions opposées. L'axe (30) placé à gauche de l'intérieur du livre dans la direction de déplacement (L) de l'intérieur du livre (2) peut tourner dans le sens des aiguilles d'une montre, et l'axe (20) placé à droite de l'intérieur du livre dans la direction de déplacement (L) de l'intérieur du livre (2) peut tourner dans le sens contraire. Chaque axe (20, 30) est équipé d'au moins un disque de fraisage (21, 31) dont la circonférence extérieure comprend des éléments de coupe (22, 32). L'invention porte également sur une méthode d'utilisation d'un tel dispositif.

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