VERFAHREN UND MASCHINE ZUM WICKELN VON ROHREN AUS BANDMATERIAL.

摘要

PCT No. PCT/AU87/00403 Sec. 371 Date May 25, 1989 Sec. 102(e) Date May 25, 1989 PCT Filed Nov. 26, 1987 PCT Pub. No. WO88/03865 PCT Pub. Date Jun. 2, 1988.A machine winds tubes from strip (41) of the type having side flanges (43) with intermediate flanges (44) between, the strip (41) being fed into an annular space (21) between a cylindrical outer sleeve (18) fixed to a base plate (10) and a cylindrical driven core (20) rotatable coaxially within the sleeve (18). A series of pressure rollers (37) are mounted along a helical path on the sleeve (18), each entering the annular space (21) by way of an opening (37) in the sleeve, one such opening (37) being an inlet opening for the strip (41). The rollers (37) press the strip (41) into frictional engagement with the rotating core (20) and guide it to form a helix with closely adjacent convolutions. Also fed into the annular space (21) is a longitudinally recessed locking strip (47) which the rollers (37) press into locking engagement with the adjacent side flanges (43) of successive convolutions of the helically wound strip (41).