Roll forming machine and method for changing side roll stands

Details Roll forming machine and method for changing side roll stands Roll forming machine and method for changing side roll stands

B - Operations, Transporting

21

D

B21D 5/12 (2006.01) B21B 31/10 (2006.01) B21D 37/14 (2006.01)

Patent

CA 2299280

A roll forming machine includes side roll stands (22, 24, 26) which are changed by use of a cart (44) and set up fixture which are movable parallel to the pass line through the stands. When a side roll stand (22) is to be changed, a changing cart (44) is moved into position such that rails on the cart are aligned with rails on the fixed support supporting the side roll stand. The side roll stand (22) is moved off of the fixed support (26) and onto the cart (44), and then moved from the cart (44) into an empty station (66B) on a set up fixture. A retooled stand is moved from another station on the set up fixture onto the cart (44) and then from the cart back onto the fixed support (36). Accordingly, time to effect changeover of a stand is reduced substantially from prior art methods, and no heavy equipment, such as a crane, is required.

La présente invention concerne une profileuse comportant des postes de meulage latéraux (22, 24, 26) que l'on change au moyen d'un chariot (44) et des montures de fixation mobiles parallèlement à la ligne de passe traversant les postes d'usinage. Lorsqu'il y a lieu de changer un poste de meulage latéral (22), un chariot changeur (44) se présente en position de façon que des rails du chariot vienne s'aligner sur des rails équipant le support fixe du poste de meulage latéral. Ce poste de meulage latéral (22) est écarté du support fixe (26) puis amené sur le chariot (44) puis retiré du chariot (44) et amené dans une position vide (66B) sur une monture de fixation. Lorsque le poste est outillé, il est sorti d'une autre position de la monture de fixation et amené sur le chariot (44), puis transféré du chariot pour revenir sur le support fixe (36). Il en résulte qu'il faut beaucoup moins de temps qu'avec les procédés existants pour faire un changement de poste. Et en outre, il n'y a besoin d'aucun équipement lourd tel que les grues.

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