Injection molding machine with articulated closure

Details Injection molding machine with articulated closure Injection molding machine with articulated closure

1992-09-09

1994-03-29

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, B29C 4566

Patent

active

052979520

ABSTRACT:
An injection molding machine has a machine frame, a stationary and a movable die platen, as well as a front plate supporting a closure mechanism. The front plate on which the movable die platen is supported via the closure mechanism and the stationary die platen are without bars and connected exclusively via the machine frame. The closing force occurring during the closing process and the lifting force occurring during the injection process between the front plate and the die platen are borne only by the machine frame. The movable die platen is guided on at least one rail supported on the machine frame. The closure mechanism is a toggle joint whose levers are rotatably articulated, on the one hand, at the movable die platen and, on the other hand, at the front plate.

REFERENCES:
patent: 3245122 (1966-04-01), Maurer
patent: 3577596 (1971-05-01), Bullard
patent: 4202522 (1980-05-01), Hanas et al.
patent: 5122051 (1992-06-01), Joyner

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