Injection blow molding machine with stacked molds

Details Injection blow molding machine with stacked molds Injection blow molding machine with stacked molds

1995-02-15

1996-09-03

Timm, Catherine

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Including application of internal fluid pressure to hollow...

425533, B29C 4906, B29C 4936

Patent

active

055521053

ABSTRACT:
A method and apparatus for forming plastic hollow articles such as containers which includes a turret that includes an upper head and a lower head, each of which supports circumferentially spaced sets of core rods. The heads are rotated about a vertical axis and also are moved upwardly and downwardly about the vertical axis for positioning the core rods within the cavities of upper injection mold and upper blow mold and a lower set of injection and a lower set of blow molds. Each mold has an upper half and a lower half. The lower half of the upper mold is mounted in fixed position and the upper half of the lower mold is mounted in fixed position. The upper half of the upper mold and the lower half of the lower mold are movable axially vertically toward and away from their respective fixed mold halves to close about parisons on the core rods. The upper and lower injection molds are supplied with molten plastic through a manifold to which molten plastic material is supplied from an extruder nozzle tip of an extruder.

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