Mold method and apparatus for plastic shells

Details Mold method and apparatus for plastic shells Mold method and apparatus for plastic shells

1987-02-13

1988-07-05

Thurlow, Jeffery

Plastic and nonmetallic article shaping or treating: processes

Recycling of reclaimed or purified process material

Of gaseous process material

264126, 264302, 425217, 425434, 425435, B29C 4118

Patent

active

047553332

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.

REFERENCES:
patent: 1597803 (1926-08-01), Kearney et al.
patent: 3506755 (1970-04-01), Rudder et al.
patent: 3621535 (1971-11-01), Ringal
patent: 3801255 (1974-04-01), Meyer et al.
patent: 3829272 (1974-08-01), Carillon et al.

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