US 4,836,767 AGranted

Swing plate molding machine

AssigneeHusky Injection Molding System Ltd.

InventorsRobert D. Schad, John Pocock

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Abstract

The present invention relates to an apparatus for producing molded plastic articles which is capable of simultaneously producing and cooling the plastic articles. The apparatus has a stationary mold half having at least one cavity, at least two mating mold portions, each having at least one core element, mounted to a movable carrier plate which aligns a first one of the mating mold portions with the stationary mold half and positions a second of the mating mold portions in a cooling position, a device for cooling the molded plastic article(s) when in the cooling position, and a device for moving the carrier plate along a first axis so that the aligned mold portion abuts the stationary mold half and the second mating mold portion simultaneously brings each plastic article(s) thereon into contact with the cooling device. The carrier plate is also rotatable about an axis parallel to the first axis to permit different ones of the mating mold portions to assume the aligned position during different molding cycles.

Claims10

Dependent claims

An apparatus for producing molded plastic articles which comprises:

an injection molding machine including a first mold portion;
at least two mold portions for mating with said first portion;
said mating portions being mounted to a movable carrier plate so that during a first molding cycle a first one of said mating mold portions is aligned with said first mold portion to permit the production of at least one molded plastic article and a second one of said mating portions is in a non-aligned position and during a second molding cycle said first mating molding portion with said at least one plastic article are in said non-aligned position and said second mating molding portion is aligned with said first mold portion;
means for cooling said at least one plastic article in said non-aligned position;
means for moving said carrier plate along a first axis so that during each molding cycle said mating molding portion in said aligned position is brought into contact with said first mold portion to form at least one plastic article and said mating molding portion in said non-aligned position is simultaneously brought into a cooling position wherein said at least one plastic article on said mating molding mean formed during a previous molding cycle contacts said cooling means;
said cooling means comprising a plurality of plates connected to a rotatable hub;
and each said plate having at least one cooling tube for receiving said at least one plastic article to be cooled.

4 more elements

Dependencies are inferred from the claim text.