B - Operations – Transporting – 21 – D
Patent
B - Operations, Transporting
21
D
B21D 7/08 (2006.01)
Patent
CA 2553737
Disclosed is a device for bending open, half-open, and closed hollow profiled members (11'). Said bending device operates with a central roller (3) that rests against the inner surface of the bent profiled member, a milling roller (4) which leans on the outer surface of the bend, and a bending roller (11) located at the discharge end of the profiled member. Said bending roller (11) acts upon the outer surface of the bend, counter to the supporting effect of a support roller (5, 6) that rests against the outer surface of the bend at the feeding end. In order to allow also thin-walled, sensitive profiled members to be shaped, additional milling rollers (12, 13) that act upon the top and bottom sidewall of the profiled member are disposed on a plane extending perpendicular to the bending plane in relation to the opposite central rollers and milling rollers (3, 4).
L'invention concerne un appareil à plier pour effectuer une déformation plastique par flexion de profilés creux (11') fermés, ouverts et mi-ouverts. Cet appareil comprend un rouleau médian (3) appuyant contre la face interne du profilé plié, un rouleau de laminage (4) appuyant contre la face externe de la feuille, un rouleau de cintrage (11) disposé côté sortie du profilé et agissant sur la face externe de la feuille, contre le support assuré par un rouleau support (5,6) appuyant côté entrée contre la face externe de la feuille. L'invention vise à permettre la déformation plastique par flexion de profilés sensibles à parois minces. A cet effet, sur le plan perpendiculaire au plan de pliage et relativement aux rouleaux médian et de laminage (3, 4) se faisant face, sont montés d'autres rouleaux de laminage (12,13) qui agissent sur la paroi latérale supérieure et inférieure du profilé.
Klingelnberg Ag
Marks & Clerk
Palima W. Ludwig & Co.
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