METHOD AND APPARATUS FOR ROLLING WIRE ROD

PROBLEM TO BE SOLVED: To provide a method and an apparatus for rolling wires by which the temperature of the wire at finish rolling is switched and adjusted and the rolling of the wire, which is fit to a kind of steel is performed. SOLUTION: A block mill BM is divided into a block mill BM1 of the preceding stage and a block mill BM2 of the poststage, the rolls 4 of the preceding stage are made so that the roll gap is adjustable to a noncontact position to a material to be rolled and also a rolling mill RM having the reduction of area equivalent to the block mill BM1 of the preceding is arranged on a pass line 5 connected so as to be able to bypass through a switching device 6 on the inlet side of the block mill BM. Rolling is performed by switching two kinds of rolling patterns of the 1st pattern by which a round steel bar of the object of rolling is rolled by consistently using the block mill BM1 of the preceding stage and the block mill BM2 of the poststage of the block mill and the 2nd pattern by which, after rolling the round bar by passing through the pass line 5, the round bar is passed through the rolls of the block mill BM1 of the preceding stage of the block mill in noncontact and rolled by using the block mill BM2 of the poststage.