Open frame injection molding machine

Details Open frame injection molding machine Open frame injection molding machine

1994-12-12

1996-07-23

Heitbrink, Tim

Plastic article or earthenware shaping or treating: apparatus

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

With means to close mold

4254516, 425593, B29C 4564

Patent

active

055384153

ABSTRACT:
An injection molding machine is provided with an open frame specifically designed to avoid angular displacement of the stationary platen during the molding process. More particularly, the stationary platen and the supporting frame are configured to maintain a constant moment of inertia relative to the line of force acting on the platen during the clamp closed part of the cycle, so that it displaces linearly when force is applied. In addition, the frame is provided with integral support members to connect with the die height adjustment mechanism. The support members are positioned on the frame to minimize the distance of the open frame, thus minimizing the length of frame subject to deflection when the force is applied.

REFERENCES:
patent: 3890308 (1975-06-01), Collins
patent: 3924987 (1975-12-01), Mehnert
patent: 4202522 (1980-05-01), Hanas et al.
patent: 4222731 (1980-09-01), Enriette et al.
patent: 5110283 (1992-05-01), Bluml et al.
patent: 5249951 (1993-10-01), Leonhartsberger et al.
patent: 5297952 (1994-03-01), Leonhartsberger
patent: 5332385 (1994-07-01), Leonhartsberger

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