Compact core and ejector assembly

Details Compact core and ejector assembly Compact core and ejector assembly

1994-03-23

1995-11-28

Heitbrink, Tim

Plastic article or earthenware shaping or treating: apparatus

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

With product ejector

249 59, 249 68, 264334, 425572, 425577, B29C 4544

Patent

active

054702216

ABSTRACT:
A compact core and ejector assembly includes an elongate core terminating in a male mold component and including a cylindrical shoulder which supports the top plate of an associated core support frame. The shoulder includes opposing, longitudinally-extending slots which receive jaw elements, which are pivotally mounted on a reciprocating knock out plate, and therefore guide the jaw elements during the ejection procedure. The top plate, knock out plate and core plate are cut away so that rows of cores may be arranged in a densely packed configuration. In a preferred embodiment, the lateral sides of the top, knock out and core plates have a cut away or sinusoidal shape so that abutting rows fit in an overlapping relationship.

REFERENCES:
patent: 3564660 (1971-02-01), Darnell
patent: 3591898 (1971-07-01), Stenmo
patent: 3645492 (1972-02-01), Edlis
patent: 3774874 (1973-11-01), Clark
patent: 4126291 (1978-11-01), Gilbert et al.
patent: 4412806 (1983-11-01), Gaiser et al.
patent: 4676474 (1987-06-01), Vallet et al.
patent: 4832307 (1989-05-01), Watanabe et al.

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