Method and apparatus for continuously molding a fastening connec

Details Method and apparatus for continuously molding a fastening connec Method and apparatus for continuously molding a fastening connec

1996-09-18

1998-09-01

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Of varying cross-sectional area or with intermittent...

26417219, 2641731, 425115, 425130, B29C 4732, B29C 3918

Patent

active

058007601

ABSTRACT:
A fastening connector of thermoplastic resin for connecting two separate members together is continuously molded efficiently in a single step by a simple method and apparatus. The method includes the steps of continuously extruding molten resin from an injection nozzle to the circumferential surface of a die wheel, which has in the circumferential surface, a multiplicity of engaging-element-forming cavities, to continuously mold a substrate sheet between the circumferential surface of the die wheel and the injection nozzle and a multiplicity of engaging elements in the engaging-element-forming cavities which elements stand on a front surface of the substrate sheet and, at the same time, to continuously mold at least one engaging ridge, through an engaging-ridge-molding channel, with part of the molten resin integrally with a rear surface of the substrate sheet.

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