Molding apparatus with improved ejector pin

Details Molding apparatus with improved ejector pin Molding apparatus with improved ejector pin

1988-08-10

1989-12-26

Rowan, Kurt

Static molds

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

Pin or sleeve means

164347, 249134, 425444, 425556, B22D 1722, B29C 4540

Patent

active

048893110

ABSTRACT:
A molding aperture comprising a mold piece having therein an aperture and including a surface at least partially defining a mold cavity, the mold piece being made of a first material, an ejector pin slideably housed in the aperture and made of second material substantially softer than the first material, and a mechanism for moving the ejector pin relative to the mold piece so that the ejector pin separates a molded part from the mold piece surface.

REFERENCES:
patent: 2837796 (1958-06-01), Aliberti
patent: 3384335 (1968-05-01), Schwarz
patent: 3914086 (1975-10-01), Hujik
patent: 4661055 (1987-04-01), Thivichon-Prince et al.

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