Loop machine for helically winding strip

Details Loop machine for helically winding strip Loop machine for helically winding strip

B - Operations, Transporting

29

C

B29C 53/72 (2006.01) B29C 53/78 (2006.01) G02B 6/50 (2006.01)

Patent

CA 2119034

The invention relates to apparatus for helically winding pipes from tube forming plastics strip comprising a single fixed ri- gid loop (20) formed from a length of metal band, wherein the inner surface of the loop forms a spiral path along which the strip is directed when helically wound, strip guide means (26) for guiding the strip into the path of the loop (20), and driven roller means (23, 24) for driving the strip around the spiral path and for joining together adjacent edges of adjacent convolutions of the strip, whereby during the helical winding process, the strip is driven around the spiral path in frictional engagement with the loop inner surface, maintaining intimate contact therewith, to thereby form the pipe.

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