Apparatus for manufacturing a hollow synthetic resin product

Details Apparatus for manufacturing a hollow synthetic resin product Apparatus for manufacturing a hollow synthetic resin product

1990-12-06

1994-02-22

Chiesa, Richard L.

Plastic article or earthenware shaping or treating: apparatus

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

Including means to prepare parison

264540, 264150, 425532, 4253021, B29C 4904

Patent

active

052882241

ABSTRACT:
An apparatus for manufacturing a hollow synthetic resin product, including a movable parison guide and a movable lower molding portion which align an extruding head, the parison guide and an end of the lower molding portion in a perpendicular plane. The lower molding portion is moved in a direction perpendicular to the perpendicular plane while a parison is extruded from the extruding head, while the parison guide is moved in a direction crossing the moving direction of the lower molding portion in accordance with a shape of a groove of the lower molding portion to accommodate a first portion of the parison in the groove. A cutter cuts the parison in a predetermined length when the predetermined length thereof is extruded, while a parison pinch holds a portion of the parison to be cut immediately before the parison is cut. The parison guide is movable in a direction crossing the moving direction of the lower molding portion in accordance with the shape of the groove while the lower molding portion is movable in the direction perpendicular to the perpendicular plane, and the parison pinch can be lowered gradually to accommodate a second portion of the parison in the groove.

REFERENCES:
patent: 3396427 (1968-08-01), Raspante
patent: 3579621 (1971-05-01), Mehnert
patent: 3640661 (1972-02-01), Gasior et al.
patent: 3796530 (1974-03-01), Kontz et al.
patent: 3809521 (1974-05-01), La Fosse
patent: 4290994 (1981-09-01), Murakami et al.
patent: 4738612 (1988-04-01), Kikuchi et al.
patent: 5030083 (1991-07-01), Kohno et al.

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