Injection blow molder for duplex hollow molded articles

Details Injection blow molder for duplex hollow molded articles Injection blow molder for duplex hollow molded articles

B - Operations, Transporting

29

C

18/514

B29C 49/22 (2006.01) B29C 45/16 (2006.01)

Patent

CA 1141115

INJECTION BLOW MOLDER FOR DUPLEX HOLLOW MOLDED ARTICLES ABSTRACT An injection blow molder for manufacturing duplex hollow molded articles has four operation stages: An injec- tion molding state, a heating stage, a stretching and blow- ing stage, and a mold releasing stage and has 1 neck molds more than the number of stages. The injection molding stage is expanded to include the stopping positions of two adjacent neck molds. In the injection molding stage, an inner parison and an outer prison are separately formed; and in the later stages they are stretched and blow molded to form a duplex hollow molded article.

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