Molding machine

Details Molding machine Molding machine

1976-01-26

1977-06-14

Spicer, Jr., Robert L.

Plastic article or earthenware shaping or treating: apparatus

With electrical control system

Of ram or platen reciprocation in press molding cycle

425416, 425423, 425451, B29C 306

Patent

active

040294579

ABSTRACT:
In a molding machine of the type wherein a movable die plate carrying a movable mold is moved toward a stationary mold, the movable die plate is locked by a locking member to the tie bars, and then the mold tightening cylinder is operated to strongly urge the movable mold against the stationary mold, the locking member is operated by an electric actuator before the movable mold engages the stationary mold, or while the movable die plate is still being moved toward the stationary mold.

REFERENCES:
patent: 2498264 (1950-02-01), Goldhard
patent: 3465387 (1969-09-01), Allard et al.
patent: 3716323 (1973-02-01), Classen

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