Plastic article or earthenware shaping or treating: apparatus – Female mold and charger to supply fluent stock under... – With product ejector
Patent
1990-09-04
1991-12-03
Heitbrink, Timothy
Plastic article or earthenware shaping or treating: apparatus
Female mold and charger to supply fluent stock under...
With product ejector
2642972, 2642974, 2643288, 4254501, 4254519, 425572, 425595, B29C 4540
Patent
active
050696157
ABSTRACT:
A stack mold apparatus for forming plastic articles is described. The apparatus includes an insulated runner system for delivering molten plastic material to the mold spaces for forming the parts. The apparatus further includes a mechanism for ejecting the solidified material of the runner when it becomes necessary to change the plastic material being used. In a first embodiment, the ejector mechanism has a pair of movable plates that form part of the central mold portion of the stack mold. In a second embodiment, the ejector mechanism has a movable plate, forming half of the central mold portion, having sucker pins and ejector bars incorporated therein.
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Akselrud Vitaly
DiSimone John
Schad Robert D.
Heitbrink Timothy
Husky Injection Molding Systems Ltd.
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