Method of and machine for winding tubes from strip

Details Method of and machine for winding tubes from strip Method of and machine for winding tubes from strip

B - Operations, Transporting

29

C

18/933, 18/973

B29C 53/62 (2006.01) B29C 65/54 (2006.01) F16L 9/16 (2006.01)

Patent

CA 1302034

-13- Title: "METHOD OF AND MACHINE FOR WINDING TUBES FROM STRIP" ABSTRACT 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).

615334

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