Injection apparatus with the internal space cleanable and method

Details Injection apparatus with the internal space cleanable and method Injection apparatus with the internal space cleanable and method

1997-05-16

1998-05-19

Warden, Jill

Cleaning and liquid contact with solids

Processes

Hollow work, internal surface treatment

134 2218, 134 31, 134 37, 134166R, 100112, B08B 900

Patent

active

057530491

ABSTRACT:
An injection apparatus and method is disclosed that enables the internal space to be cleanable by preventing the solidification of binder through washing and cleaning inside a heating cylinder when molding material formation is completed. An inlet pipe is provided between an inlet of an upper wall at the rear portion of a heating cylinder having a nozzle member at the tip internally equipped with an injection screw and a hopper is installed above the inlet. Pipelines for cleaning water and for compressed air are connected to the inlet pipe. Cleaning inside the heating cylinder is made possible by operating transfer valves provided at these pipelines.

REFERENCES:
patent: 3700509 (1972-10-01), Devitt
patent: 3729177 (1973-04-01), Keyes et al.
patent: 5318637 (1994-06-01), Wernicke

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