B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
18/517
B29C 49/06 (2006.01) B29C 45/04 (2006.01) B29C 45/72 (2006.01) B29C 49/42 (2006.01) B29C 31/00 (2006.01) B29C 33/00 (2006.01)
Patent
CA 1316652
Docket 4455 PRODUCTION OF PREFORMS FOR BLOW MOLDED ARTICLES ABSTRACT OF THE DISCLOSURE A plurality of injection cores are inserted by a movable platen into corresponding injection cavities defined by mold inserts within a stationary platen, and the cores extend through corresponding split transfer mold cavities. After hollow preforms with threaded neck portions are molded within the cavities, the preforms are removed from the mold cavities, separated from the injection cores, and then shifted transversely by the split transfer molds to cooling or blow cavities defined by blow cavity inserts within the stationary platen on opposite sides of the corresponding injection cavities. The transfer molds return to receive the injection cores, and corresponding blow core units are inserted into the preforms within the blow cavities for pressurizing and expanding the preforms into firm contact with the blow inserts. The preforms are removed from the blow cavities by the blow cores on alternate cycles of press operation and are then released by retraction of the blow cores. The split transfer molds are shifted transversely in opposite directions and are opened and closed by a cam system which includes cam tracks mounted on the movable platen and incorporating cam track switches.
595000
Brun Charles J. Jr.
Newport Anthony F.
Electra Form Inc.
Gowling Lafleur Henderson Llp
LandOfFree
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