Mold method and apparatus for plastic shells
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United States of America Patent
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-
Jul 5, 1988
Issued Date -
N/A
app pub date -
Feb 13, 1987
filing date -
Jul 1, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Apparatus and a process for manufacturing thin walled hollow plastic shells for parts such as automobile door panels, controls and instrument panels from dry thermoplastic powders includes a plurality of powder boxes and an open-ended heated mold. Each charge box is carried by an indexable carousel which has a drive motor controlled by a programmable controller to position the carousel to off-load a given color to a powder casting mold carrier which is associated with means for sequentially and continuously (1) preheating a mold; (2) dumping powder from an off-loaded color box into a heated mold; (3) curing the cast powder in the mold; (4) cooling the mold; and (5) stripping the part from the mold.
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