Injection unit for plastic injection molding machine

Details Injection unit for plastic injection molding machine Injection unit for plastic injection molding machine

1991-10-15

1992-12-22

Heitbrink, Tim

Plastic article or earthenware shaping or treating: apparatus

Control means responsive to or actuated by means sensing or...

Feed control of material en route to shaping area

425542, B29C 4518

Patent

active

051733129

ABSTRACT:
A plastic injection molding machine includes a quill secured to a plasticizing screw for rotatably driving the plasticizing screw. A quill insert is provided between a rotating motor ouptut and the quill to affect rotational movement of the plasticizing screw. An injection piston for axially displacing the quill and plasticizing screw is mounted on the quill so as to allow the quill to freely rotate within the injection piston.

REFERENCES:
patent: 3319298 (1967-05-01), Kiraly
patent: 3767339 (1973-10-01), Hunkar
patent: 4349324 (1982-09-01), Neff et al.
patent: 4731005 (1988-06-01), Hehl

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