Plastic article or earthenware shaping or treating: apparatus – Female mold and means to shape parison directly by internal... – Forming baffle – bottleneck – or handle
Patent
1991-02-01
1992-12-01
Chiesa, Richard L.
Plastic article or earthenware shaping or treating: apparatus
Female mold and means to shape parison directly by internal...
Forming baffle, bottleneck, or handle
215 1C, 215100A, 264516, 264537, 425533, B29C 4920
Patent
active
051679701
ABSTRACT:
An apparatus for the preparation of a vessel having a handle, which includes an injection mold having a cavity for forming a handle having an endless holding portion and an endless attachment portion; an injection molding mechanism for injecting a resin for the handle into the cavity of the injection mold; a blow-forming or draw-blow-forming split mold having a parting surface that can be closed, cavity assembly which is arranged in the split mold plane-symmetrically with the parting surface and includes an inserting cavity for containing the handle therein, and a forming cavity which has a neck-forming cavity, a barrel-forming cavity, a closed bottom-forming cavity, a recess-forming cavity formed at a part of the barrel-forming cavity so that the diameter of a deepest part of the recess-forming cavity is substantially equal to or slightly larger than the diameter of the neck-forming cavity, a projection-forming cavity for forming a projection to project and extend through the attachment portion almost to the center of the recess-forming cavity, and a flange-forming cavity formed on the top end of the projection-forming cavity to have a section expanded over the projection-forming cavity; a mechanism for supplying a blowing pressure into a preform held by the split mold to effect blow-forming or draw-blow-forming of the preform; a pushing pin that can be pressed into the flange-forming cavity; and a pushing pin-driving mechanism.
REFERENCES:
patent: 3892513 (1975-07-01), Mehnert et al.
patent: 3983199 (1976-09-01), Uhlig
patent: 4604044 (1986-08-01), Hafele
patent: 4909978 (1990-03-01), Hasegawa et al.
Kishida Nobuhiro
Miura Masaki
Morimura Akihito
Yasuda Yosuke
Yoshino Minoru
Chiesa Richard L.
Toyo Seikan Kaisha Ltd.
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