| 摘要 |
A high-production machine for blow molding articles, such as plastic bottles, from sections of a continuously extruded parison wherein the parison is received in a succession of concurrently moving, cyclically returned preliminary or "preform" molds into each of which a section of parison is received, advanced into enveloping relation with a transfer pin, and then severed and formed into a closed-end "cell" while in transit. In this machine, one or more transfer pins cooperate with the preform molds to close the ends and otherwise partly shape successive parison sections or cells. Each preliminarily shaped cell is shifted by a transfer pin from the reciprocal ambit of the preform mold to a position wherein it is embraced by a final blow mold or one of a plurality thereof. The transfer pin has important functions in cooperation with the molds in shaping the necks and closed ends of the finished blow-molded articles without the formation of scrap fragments.
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