| 摘要 |
PURPOSE:To stably take out even under a condition that an expansion ratio is comparatively high where an expanded sheet becomes particularly weak by rounding angular parts of faces, which come in contact with the expanded sheet, of rolls of a widening unit or a belt. CONSTITUTION:A movable roll 12 is energized in a direction to be pressed to a drive roll 11 by a spring provided for rotating a detaching/attaching handle 15. Accordingly, the drive roll 11 can pinch an expanded sheet 17 with the movable roll 12 so as to take out. A bracket 13 is provided with an axis 18 rectangular to the axes of the rolls. The bracket is supported rotatably on a fixed stage 19 by the axis 18 and a widening angle can be adjusted by a widening angle adjusting handle 20. The drive roll 11 and the movable roll 12 are rounded at their angular parts. As for the rounding dimension, about at least 3mm is preferable. |
