Retainer assembly for mold plate

Details Retainer assembly for mold plate Retainer assembly for mold plate

1975-06-16

1976-11-23

Flint, Jr., J. Howard

Plastic article or earthenware shaping or treating: apparatus

Distinct means to feed, support or manipulate preform stock...

Female mold type means

425242R, 425DIG47, B29F 100, B29D 300

Patent

active

039934209

ABSTRACT:
A mold assembly for injection molding of precision composite articles, which is particularly adapted for use in making highly precise oil seals having a rubber body bonded to a metal mounting flange. The assembly comprises a bottom mold member adapted to be supported in fixed relation to a vertically reciprocable top mold member, the bottom member has means forming an upwardly opening annular recess for supporting therein a circular oil seal stamping of generally L-shaped cross section with an inner marginal portion extending in a radial direction into a mold cavity formed by spaced confronting surface portions of top and bottom mold members when in the closed position, and the top mold member having a downwardly opening annular recess in which a spring pressed stripper plate is retained for limited vertical movement by means of coiled spring member insertable in a groove in an edge of the stripper plate when the stripper plate is positioned in the recess in the top mold member enabling the mold assembly to be used for molding of oil seal units having stampings of different radial and axial dimensions.

REFERENCES:
patent: 2982997 (1961-05-01), Peickii et al.
patent: 2990206 (1961-06-01), Bagdon
patent: 3773454 (1973-11-01), Horve et al.

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