Injection blow-molding machine

Details Injection blow-molding machine Injection blow-molding machine

1977-08-09

1978-12-26

Lazarus, Richard B.

Plastic article or earthenware shaping or treating: apparatus

Female mold and means to shape parison directly by internal...

Including means to prepare parison

425569, 425570, B29D 2303

Patent

active

041314107

ABSTRACT:
An injection blow-molding machine comprising a pair of female mold-halves attached to a movable plate and a fixed plate respectively with a required number of parison cavities and blow-molding cavities being formed symmetrically in the mating plane of the mold-halves, a required number of male molds each having a blowing hole therethrough ahd supported around a male-mold supporting member fixed to a rotating shaft passed freely rotatably through one of the female mold-halves attached to the fixed plate, a hot-runner block provided adjacently to each of said parison cavities, a hot-runner nozzle disposed between the parison cavity and the hot-runner block, and a gate in the form of a channel provided for each parison cavity for forming the bottom portion of the parison to be apart from said hot-runner nozzle.

REFERENCES:
patent: 3480993 (1969-12-01), Schjeldahl et al.

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