| 摘要 |
<p>PROBLEM TO BE SOLVED: To sufficiently secure the effects of deflection reduction by offset control or the like even when rolling is in a discontinuous state by decreasing the pressing force of hydraulic cylinders in the case a detected value is larger than the target value and increasing the pressing force of the hydraulic cylinders in the case the detected values are smaller than the target value so that the detected value of the horizontal force is held at a prescribed target value. SOLUTION: With a pressing amplifier 41, driving currents for adjusting the pressure of pressurized oil to be supplied to the hydraulic cylinders 23a, 23b to a desired value are outputted to an electromagnetic proportional reducing valve 39 based on a control signal and detection signal for detecting the horizontal force to the inlet side from horizontal force detectors 40a, 40b provided on the supporting frame 18 on inlet side of a rolling mill. In this manner, so that the horizontal force detected with the horizontal force detectors 40a, 40b is always held at the target value, the pressing force of the hydraulic cylinders 23a, 23b is decreased in the case the detected value is larger than the target value and the pressing force of the hydraulic cylinders 23a, 23b is increased in the case the detected value is smaller than the target value.</p> |
