Method and apparatus for manufacturing corrugated tubes

Details Method and apparatus for manufacturing corrugated tubes Method and apparatus for manufacturing corrugated tubes

B - Operations, Transporting

29

D

18/945

B29D 23/18 (2006.01) B29C 47/88 (2006.01) B29C 53/30 (2006.01) B29C 53/82 (2006.01)

Patent

CA 1109221

ABSTRACT OF THE DISCLOSURE: An apparatus for continuously forming a corrugated tube from a strip of synthetic resin in a softened state by the use of a plurality of rotating rollers arranged in a circular array such that said rollers define an imaginary cylinder about its central axis with the axes of said rollers being parallel to each other but angled relative to the central axis of the imaginary cylinder whereby as the rollers rotate the strip is helically wrapped around and advanced axially along said imaginary cylinder with portions of adjacent turns of the strip overlapping and joined together to form a continuous tube; characterized in that each of said rollers is provided with a plurality of axially spaced annular ridges . therearound, said ridges of the respective rollers being so arranged that the associated successive ridges of each adjacent rollers are aligned in a spiral path around said imaginary cylinder.

323270

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