Method of manufacturing hollow bodies and method of manufacturin

Details Method of manufacturing hollow bodies and method of manufacturin Method of manufacturing hollow bodies and method of manufacturin

1998-07-07

2000-04-25

Timm, Catherine

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Producing multilayer work or article

264515, B29C 4920

Patent

active

060540923

ABSTRACT:
The present invention provides a method of manufacturing resinous containers comprising: a preparing process in which segmental molding dies are prepared, the segmental molding dies comprising a first cavity for molding hollow bodies and a second cavity for molding auxiliary parts and a third cavity for holding the auxiliary part which communicates with the first cavity; a pre-molding process in which a resin parison is supplied between the segmental molding dies, the segmental molding dies are clamped, a compressed gas is blown into the resin parison to expand the resin parison within the first cavity and to fit the resin parison to the surface which forms an outline of the first cavity, of the segmental molding dies, the compressed gas is discharged from the resin parison, and the segmental molding dies are opened to take out a formed hollow body and a formed auxiliary part; and a main molding process in which the same process as the pre-molding process is implemented except that the formed auxiliary part is inserted in the third cavity before the resin parison is supplied between the segmental molding dies and that a new auxiliary part and a resin container in which the inserted auxiliary part is integrated with a hollow body are taken out. In the present invention, when once the pre-molding process is implemented, the preparing process and the main molding process are repeated.

REFERENCES:
patent: 3534435 (1970-10-01), John
patent: 5061417 (1991-10-01), Schurman
patent: 5523047 (1996-06-01), Corby et al.
patent: 5534218 (1996-07-01), Daubenbuchel et al.
patent: 5575969 (1996-11-01), Yamamori et al.
patent: 5885517 (1999-03-01), Hendrickson et al.

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