| 摘要 |
PURPOSE:To perform the folding, center position movement and oscillation of a guide plate on the ground side and to avoid dangerous work in a high tower. CONSTITUTION:In a folding quantity automatic control device consisting of a sent-out inflation tube 2, a folding control device 1 and a stable plate 3, the inflation tube 2 sent out of an extruder or the raw tube taken up by a paper pipe is formed into a pleated bag by two staple plates 3 having a truncated chevron shape and two folding plates 1a of the folding control device provided on the open side of two stable plates 3. |
