Assembly for inflating a parison and forming the neck of a plast

Details Assembly for inflating a parison and forming the neck of a plast Assembly for inflating a parison and forming the neck of a plast

1997-04-28

1998-08-18

Davis, Robert

Plastic article or earthenware shaping or treating: apparatus

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

Forming baffle, bottleneck, or handle

425527, 425535, B29C 4958

Patent

active

057955980

ABSTRACT:
An assembly for inflating a parison and forming the neck portion of a plastic container in a blow molding machine is provided. The assembly includes a blow rod, a blow pin mounted to the blow rod, and a heat sink for removing heat from the blow pin. The heat sink includes flow channels for facilitating the dissipation of heat. It is located in proximity to the shearing edge of the blow pin to enable the removal of heat therefrom. As the shearing edge of the blow pin is maintained at a relatively low temperature, the blow molding machine can be operated at faster cycle times without reducing the sealing capability of the container neck portion.

REFERENCES:
patent: 3733384 (1973-05-01), Gerlovich et al.
patent: 3737273 (1973-06-01), Conner
patent: 3782877 (1974-01-01), Mehnert
patent: 4187070 (1980-02-01), Martin, Jr.
patent: 4234299 (1980-11-01), Kuenzig et al.
patent: 4390338 (1983-06-01), Bowers et al.
patent: 4631020 (1986-12-01), Frankenberg et al.
patent: 4929410 (1990-05-01), Meyer et al.
patent: 5256055 (1993-10-01), Morris
patent: 5589204 (1996-12-01), Wohlgemuth

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