Tapered hollow pole extruder

Details Tapered hollow pole extruder Tapered hollow pole extruder

B - Operations, Transporting

29

C

B29C 47/08 (2006.01) B29C 47/20 (2006.01)

Patent

CA 2577472

An extrusion mold head is provided having outer mold tapered cams that form an automatically contracting or expanding mold surface during extrusion of the poles, allowing the formation of tapered outer diameter on each pole. The extrusion mold head also has an inner mold tapered mandrel that is advanced or withdrawn in concert with the movement of the outer mold head pieces. The inner mold surface thereby automatically contracts or expands as required during extrusion of the poles to form either a uniform thickness or a tapering thickness of the wall of each pole.

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