| 摘要 |
<p>PURPOSE:To manufacture the products with good accuracy in sheet thickness by providing the tension adjusting device capable of adjusting the tension of the rolled stock. CONSTITUTION:The variation of tension which is generated at a result of changing the roll gap of the rolling mill for controlling sheet thickness is adjusted with the press roll 38 by elongating or contracting the hydraulic cylinder 46 so as to make the tension constant by adjusting the position of the press roll of the moving side. The low-pass filter 49 removes the composition over the contact frequency from the variation detecting signal of roll, and obtains the signal of the deviation of roll position. And the high-pass filter 60 removes the composition under the contact frequency from the tension detecting signal of the rolled stock 1, obtains the variation signal, and the roll movement instruction is obtained from the tension control gain.</p> |
