WORK ROLL MOVING SYSTEM ROLLING MILL

PROBLEM TO BE SOLVED: To further improve a function making the wear dispersion of work rolls and the security of a plate crown control capacity compatible each other than usual by further uniromizing a plate crown control capacity on a work roll moving position. SOLUTION: In this rolling mill, the initial crowns C1 and C2 of a pair of bendable upper and lower work rolls 11 and 12 are arranged so that the initial crowns C1 and C2 are in point symmetry with respect to the mill center. A driving means making thes upper and lower work rolls 11 and 12 shift in reverse directions each other to the mill center along with an axial direction, is provided. On thes upper and lower work rolls 11 and 12, a tapered initial crown C1 is formed, which is gradually tapered toward a roll edge on the shift direction side. Hereupon, the starting point position S of the tapered initial crown C1 is set at a position shifted by a prescribed quantity (5% or over of the barrel length of the work roll) toward the antishift direction side of the work roll from the barrel centers of the upper and lower work rolls 11 and 12.