Moulding assembly for the injection of plastic materials

Details Moulding assembly for the injection of plastic materials Moulding assembly for the injection of plastic materials

1985-08-12

1987-04-28

Hoag, Willard E.

Plastic article or earthenware shaping or treating: apparatus

Female mold and charger to supply fluent stock under...

With product ejector

425444, B29C 4540

Patent

active

046610553

ABSTRACT:
This invention relates to a moulding assembly for the injection of plastics materials, constituted by two blocks of light alloy, located on either side of the mould joint, and in which the lower block comprises a closed cavity containing the battery of ejectors, wherein: said cavity in the lower block receiving the battery is closed by a steel plate; said lower block also presents an open cavity adapted to receive the lower mold cavity defining insert member of the mould; the upper block also comprises an open cavity adapted to receive the upper mold cavity defining insert member; and the two blocks are provided with interchangeable steel plates, disposed opposite and in the immediate vicinity of the mould joint.

REFERENCES:
patent: 2330369 (1943-09-01), Marsh
patent: 2511079 (1950-06-01), Robb
patent: 2531965 (1950-11-01), Beck et al.
patent: 2564615 (1951-08-01), Tallberg
patent: 2759231 (1956-08-01), Parlanti
patent: 3174189 (1965-03-01), Cutler et al.
patent: 3197825 (1965-08-01), Hammond
patent: 3932085 (1976-01-01), Horbach
patent: 4162138 (1979-07-01), Byrne
patent: 4249882 (1981-02-01), Koch et al.

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