B - Operations – Transporting – 21 – D
Patent
B - Operations, Transporting
21
D
B21D 5/14 (2006.01) B21B 1/24 (2006.01) B21D 5/08 (2006.01)
Patent
CA 2176281
A roll forming apparatus having a plurality of roller die stands, through which a web workpiece is passed, for progressively forming edge flange bends and for subsequently forming side flange bends between the side flanges and the web, and having side flange corner forming upper dies which are mounted on angled spindles, and fit around the edge flanges and enter into the side flange corners, and further having side flange control rolls engaging the outer surface of the side flanges, the control rolls being movably mounted for tilting inwardly or outwardly, so as to produce a greater or lesser degree of bend between the side flanges and the web.
Appareil de profilage comportant un certain nombre de porte-matrices à rouleaux, par lesquels la pièce à travailler est passée, pour former progressivement des plis sur les rebords des brides et pour former ensuite des plis sur les bords latéraux entre les ces bords latéraux et l'âme, et comportant des matrices supérieures formant le coin des bords latéraux, qui sont montées sur des arbres inclinés et qui s'adaptent aux rebords des brides et appuient sur les coins des bords latéraux, et qui, en outre, comptent des rouleaux de retenue des bords latéraux qui engagent la surface extérieure de ces derniers, ces rouleaux de retenue étant installés de manière à pouvoir être bougés et être inclinés vers l'intérieur ou l'extérieur, pour obtenir un degré de pliage plus ou moins grand entre les bords latéraux et l'âme.
Mbm Intellectual Property Law Llp
Surina Michael
LandOfFree
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