Injection molding machine

Details Injection molding machine Injection molding machine

1983-12-21

1985-07-30

Flint, Jr., J. Howard

Static molds

Including means to apply force to remove or release product...

Pin or sleeve means

425556, 425DIG58, B29F 100, B29F 114, B29C 100

Patent

active

045317046

ABSTRACT:
In an injection moulding machine for the production of undercut mouldings, such as plastics bumpers or fenders for automobiles, the injection mould comprises two relatively movable mould halves (1, 2) and a plurality of mould followers (4, 5, 6, 15, 16, 17) for defining the mould cavity when the mould is closed. The mould followers are all mounted on one mould half (1) and are displaceable relative thereto in directions transverse to the direction (3) in which the mould halves move relative to each other to release the moulding when the mould is opened. The other mould half (2) has recesses (28) for engaging and locating the external surfaces of the mould followers when the mould is closed for a moulding operation.

REFERENCES:
patent: 3283373 (1966-11-01), Kiefer et al.
patent: 3373460 (1968-03-01), Ladney
patent: 3784342 (1974-01-01), Merklinghaus
patent: 3865529 (1975-02-01), Guzzo
patent: 3982875 (1976-09-01), Abey
patent: 4005101 (1977-01-01), Ruch
patent: 4123495 (1978-10-01), Abey
patent: 4375948 (1983-03-01), von Holdt

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