Plastic tubing manufacture

Details Plastic tubing manufacture Plastic tubing manufacture

B - Operations, Transporting

29

C

18/928

B29C 53/30 (2006.01) B29C 33/28 (2006.01) B29C 33/34 (2006.01) B29C 47/12 (2006.01) B29C 47/34 (2006.01) B29C 49/00 (2006.01) B29C 49/34 (2006.01) B29C 33/26 (2006.01)

Patent

CA 1318099

ABSTRACT OF THE DISCLOSURE The foresent invention is directed to the manufacture of plastic tubing exemplified by corrugated plastic tile and parts related thereto, in which molds for shaping an extrudable plastic material are caused to shuttle linearly forwardly and rearwardly with respect to an extruding source of said plastic material. Sequentially related to linear mold movement is opening and closing mold action, which is correlated to the discharge of plastic material from the extruding source thereof. Provision is also made herein during the course of linear mold movement for parking one or more predetermined molds at a location spaced from the extruding source. Exemplary forms of actuating means for performing the forgoing functions are disclosed herein. Further, within the purview of the invention are variations in mold constructions, and the interlocking and/or latching thereof as designed.

608281

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