| 摘要 |
<p>PURPOSE:To provide a titled device which corrects the draft positions of stands from the sizes in the height direction of a rolled material detected with detectors provided on the outlet side of the stands and the ratios between the sizes in the height direction and the sizes in the breadth direction so that the shape of the rolled material coincides with target shapes. CONSTITUTION:Size detectors 6, 25 are provided on the outlet side of the stands of continuous rolling mills constituted of #1 stand (not shown in diagram) -#i stand 4 to detect the size hi in the height direction and the size (bi) in the breadth direction of a rolled material respectively. From the detection signals thereof, an evaluating function bi/hi for shapes is calculated by a divider 26 and is compared with a target shape bREF/hREF. The deviation thereof is inputted to a control gain device 27, from which a correction signal is outputted as a control gain. On the other hand, the (hi) is compared with the target height size hREF and according to the deviation thereof, a correction signal is added from a control gain 17 to the output of the device 27. The draft position of the #i stand 4 is corrected by a PID controller 18 via a thyristor 14 of a driving motor 8 for rolling reduction.</p> |
