Multi-cylinder type injection molding apparatus

Details Multi-cylinder type injection molding apparatus Multi-cylinder type injection molding apparatus

1985-12-30

1987-10-13

Nozick, Bernard

Plastic article or earthenware shaping or treating: apparatus

With control means responsive to independently operated timer

425574, B28B 1700

Patent

active

046995811

ABSTRACT:
A multi-cylinder type injection molding apparatus comprises a shifting table that can be moved toward a fixed head supporting a mold and having a plurality of sprues. The apparatus includes a plurality of injection cylinders mounted on the shifting table that can be moved to a direction orthogonal to the moving direction of the shifting table by a ball screw mechanism, a servo motor, and a numerical control to align the nozzle portions of the injection cylinders with the sprues. The apparatus also includes a mechanism for injecting molten molding material from the injection cylinders into the sprues. In one embodiment of the apparatus, the injecting conditions of each injection cylinder is controlled independently.

REFERENCES:
patent: 3647309 (1972-03-01), Thompson
patent: 3887170 (1975-06-01), Heindl

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