| 摘要 |
<p>PURPOSE: To roll a sheet into the target shape without breaking the sheet by reducing the total tension and making it smaller than a predetermind value when unit tension in the width direction becomes larger than a predetermined value. CONSTITUTION: The unit tension is calculated from the tension in each divided section in the width direction which is detected with a shape detector 100. When the max. value of the unit tension and the unit tension in a specified position in the width direction are respectively larger than predetermined values, by correcting the torque of a reel driving device on the coiling side and reducing the total tension on the coiling side, the unit tension is regulated to be smaller than these values and shape control is executed. Since the unit tension is made smaller than the predetermined value when this way is executed, the sheet is rolled without breakage of the sheet.</p> |
