Apparatus for blow molding

Details Apparatus for blow molding Apparatus for blow molding

1978-03-08

1979-05-22

Silbaugh, Jan H.

Plastic article or earthenware shaping or treating: apparatus

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

264536, 264540, 425534, 425537, B29C 1707

Patent

active

041556968

ABSTRACT:
A process and apparatus for blow-molding hollow bodies in a mold having half-molds which are closed along a mold joint during blow molding and are laterally displaced with respect to one another to open the mold for removal of the formed hollow body. The half-molds are shaped to form a concave bottom on the hollow body and when the half-molds are opened they impose a translation movement on the hollow body. A plug is formed at the bottom of the hollow body during molding which plug is seized by pincers prior to the opening of the mold such that the hollow body is supported by the pincers during mold opening. The pincers are displaced during mold opening, in translation parallel to the plane of the mold joint, over a distance at least equal to that imposed on the hollow body by the half-molds during opening of the mold.

REFERENCES:
patent: 3817678 (1974-06-01), Armour
patent: 3954186 (1976-05-01), Hafele

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