ROLLING MILL CONTROLLER, METHOD AND PROGRAM FOR CONTROLLING ROLLING MILL CONTROLLER

摘要

PROBLEM TO BE SOLVED: To raise the operation efficiency in the releasing and clamping of rollers without damaging a material to be rolled and work rollers.SOLUTION: This rolling mill controller S includes: a product specification information storing means 42 for storing the product specification of the material h to be rolled; a mill stand operation state obtaining means 41 for obtaining the operation state information of mill stands 1, 2; a weld point passing method determining means 44 for determining either of screw-down or released state of the mill stand before and after a weld point is passed; a target value of weld point passing time setting means 46 for setting the control target value of the gap between work rollers 1w, 2w before and after the passing; a weld point passing treating timing setting means 45 for setting the releasing and clamping timing of the work rollers before and after the passing; a reference stand setting means 48 for determining one the speed of which is taken as the reference speed of the mill stands at the releasing or the clamping; a speed command generating means 49 for determining the speed command to each speed controller and a command outputting means 47 for screwing-down the work rollers for commanding the releasing treatment or the clamping treatment to each screw-down controller.