| 摘要 |
PURPOSE: To transmit stable driving force to a former upper drag roller so as to dissolve rotational unevenness and facilitate maintenance and inspection by bringing a belt into contact with a movable frame side pulley, and placing two inter-pulley belts parallelly with the moving direction of a movable frame. CONSTITUTION: When a machine is put in operation, a belt 28 travels, and a driven pulley 27 is rotated. A driving pulley 29 coaxial with the driven pulley 27 is thereby rotated to make a belt 37 travel, so that a driving receiving pulley 36 is rotated, and a drag roller is rotated. As a result, web is fed into a former 2 so as to be made into twofold web and fed to a cutting-folding part. In order to make the center of the web and twofold web coincide with the center of the cutting-folding part, a handle 18 is rotated to adjust the movement of the former 2. At this time, the drag roller 1 is moved through a movable frame 5, and since the inter-pulley belts 37a, 37b of the belt 37 is parallel with the moving direction of the movable frame 5, extra tension or looseness is not generated to the belt 37. |
