Patent ID: 8677794
Filing Date: 2014-03-25
Classification: B21B

Abstract:
1. Multi-stand rolling mill of the longitudinal elongator kind, for rod-shaped bodies, comprising four-roll stands wherein said four rolls are motorized and provided with spindles, said rolling mill comprising: a central body comprising a sequence of said stands for said rolling; a first platform on a side charge position, carrying one or more substitution stands; a second platform on a side discharge position, opposed to said side charge position with regard to the central body, said second platform being suitable to move said one or more stands to be substituted; a transverse translation device acting on said one or more substitution stands to push them against corresponding stands to be substituted on the central body; said stands to be substituted moving on said second platform, and said one or more substitution stands substituting said one or more stands to be substituted in said central body; and an alignment and locking system of the stands comprising: