WEB WINDING WITH TRAVELING, GIMBALED CINCH ROLLER

摘要

In winding methods, a primary nip (160) formed against a web (14) defines continuing (166) and leading (152) web portions. A secondary nip (168) is formed against and moved along the leading portion, from an outfeed side (164) of the primary nip (160) to an infeed side (162). The continuing portion (166) and a free end (154) of the leading portion (152) are then simultaneously advanced into the primary nip (160). Winding apparatus has a winding spindle (16) and builder roller (50) that rotate about parallel winding (38) and builder roller axes, respectively. An axle (120) defines a guide axis (122) and carries a cinch roller (84) that rotates about the guide axis. The axle (120) pivots between first and second orientations, in which the guide axis parallels and is transverse to the winding axis (38), respectively. The axle moves in the first orientation, in an incomplete orbit about the winding spindle (16) from a start to a rotated position, both adjacent the builder roller (50), and returns in the second orientation.