Nozzle assembly for injection molding apparatus

Details Nozzle assembly for injection molding apparatus Nozzle assembly for injection molding apparatus

1997-02-11

1998-12-22

Ryan, Patrick

Plastic article or earthenware shaping or treating: apparatus

With apparatus assembly or dismantling means or with idle part

For extrusion or injection type shaping means

26432815, 425192R, 425549, B29C 4520, B29C 4574

Patent

active

058515658

ABSTRACT:
A nozzle assembly for use with injection molding apparatus includes an outer sleeve having a relatively large bore extending from an open rearward end forwardly to a substantially closed forward end, and having an injection orifice therein. An inner nozzle tip is located within the sleeve, and has a radial flange and an internal extending from a rearward open end to a forward tip having a plurality of flow orifices upstream of the injection orifice. A manifold insert is located within the outer sleeve and includes a through bore in axial alignment with the bore of the nozzle tip. The manifold insert has a forward end which receives the nozzle tip and which abuts the radial flange. A coil heater is located radially between the manifold and the outer sleeve, a forward end of the coil heater seated on the radial flange. The manifold insert, nozzle tip and coil heater form a subassembly which is easily removed and reinserted vis-a-vis the outer sleeve.

REFERENCES:
patent: 3010155 (1961-11-01), Gilmore
patent: 3707265 (1972-12-01), Seres
patent: 4266723 (1981-05-01), Osuna-Diaz
patent: 4273525 (1981-06-01), Reitan
patent: 4345892 (1982-08-01), Schulte et al.
patent: 4613296 (1986-09-01), Nagasaka
Fast Heat Inc. flyer, Elite SV Series Bushings, undated.
Incoe Corporation Series 3300J spec sheet, undated.
Polyshot brochure, Polyshot.TM. Tip Styles, undated.
Thermoplay spec sheet, Type D1, undated.

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