Method and apparatus for manufacturing corrugated tubes

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

1980-06-09

1981-09-29

Simmons, David A.

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

Longitudinally progressive helical winding means

156195, 15624415, 156498, B65H 8100

Patent

active

042921139

ABSTRACT:
A method and 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.

REFERENCES:
patent: 3173822 (1965-03-01), Rigaut
patent: 3477891 (1969-11-01), Hawerkamp
patent: 3532580 (1970-10-01), Kanao
patent: 4043856 (1977-08-01), Steward

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