Method of setting axial position of loosely carried sleeve in a rolling mill

摘要

A rolling mill includes at least one roll carrying a sleeve loosely on the barrel. The sleeve is inclined slightly by applying radially inward forces at two spaced positions along the outer peripheral surface of the sleeve to displace or to restrict displacement of the sleeve in the axial direction. The force applying points are independent of rotational direction of the sleeve, so that only one unit is needed even where there is reverse rotation. By controlling the relative value between the two forces, the mill can be given a powerful crown controlling capacity for workpieces of varying width, and the sleeve guiding unit is sufficiently durable to withstand high speed rolling during mass production.