Molding method with automatic fluid treatment of mold cavity

Details Molding method with automatic fluid treatment of mold cavity Molding method with automatic fluid treatment of mold cavity

1976-05-17

1977-12-20

Kucia, Richard R.

Plastic and nonmetallic article shaping or treating: processes

With step of cleaning, polishing, or preconditioning...

264 85, 264334, 264338, B29F 114, B29C 104

Patent

active

040642089

ABSTRACT:
Two mold halves together form a mold cavity and one of the mold halves is fitted with a plurality of ejector rods that can be reciprocated so as to push a molded article out of that half. At least some of these ejector rods are formed with throughgoing passages terminating adjacent the inner ends thereof at nozzle openings. Air and a treatment fluid, such as a demolding liquid, can be injected into the mold interior through these rods, the nozzle openings in the ends of the rods being covered during the normal molding operation.

REFERENCES:
patent: 2929105 (1960-03-01), Starck
patent: 3645319 (1972-02-01), Pondelicek
patent: 3671159 (1972-06-01), Greenberg
patent: 3805875 (1974-04-01), Daugherty

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