Extruding nozzle, system, and method therefor

Patent metadata

Field	Value
Publication number	US-10987645-B2
Application number	US-201816156122-A
Country	US
Kind code	B2
Filing date	Oct 10, 2018
Priority date	Oct 10, 2018
Publication date	Apr 27, 2021
Grant date	Apr 27, 2021

Abstract

An extruding nozzle is provided. The extruding nozzle includes a housing and a radiator. The radiator is at least partially disposed within the housing. The extruding nozzle also includes at least one material flow channel. The at least one material flow channel is at least partially disposed within the housing and extends through the radiator.

First claim

What is claimed is:

1. An extruding nozzle comprising:
a housing;
a radiator, at least partially disposed within the housing, the radiator comprising:
a core member, comprising at least one peripheral wall,
a heat-transfer-fluid passage, formed by the at least one peripheral wall within an interior of the core member,
at least one first heat-transfer-fluid aperture, extending through the at least one peripheral wall,
heat-transfer fins, extending outward from the at least one peripheral wall, and
at least one second heat-transfer-fluid aperture, extending through the at least one peripheral wall and communicably coupling the heat-transfer-fluid passage and the heat-transfer fins so that cooling-fluid flow is provided therebetween; and

at least one material-flow channel, at least a portion of which is located within the housing, wherein the at least one material-flow channel extends through the radiator.

2. The extruding nozzle of claim 1 , wherein the heat transfer fins comprise a helical fin, extending at least partially along a length of the core member so as to form a helical heat-transfer-fluid passage between the core member and the housing.

3. The extruding nozzle of claim 1 , wherein the housing comprises:
at least one third heat-transfer-fluid aperture, communicably coupled with the at least one first heat-transfer-fluid aperture of the radiator, and
at least one fourth heat-transfer-fluid aperture, communicably coupled with the at least one first heat-transfer-fluid aperture of the radiator.

4. The extruding nozzle of claim 3 , further comprising at least one baffle disposed between the at least one third heat-transfer-fluid aperture and the at least one fourth heat-transfer-fluid aperture so as to substantially isolate heat-transfer-fluid flow between the at least one third heat-transfer-fluid aperture and the at least one first heat-transfer-fluid aperture from another heat-transfer-fluid flow between the at least one fourth heat-transfer-fluid aperture and the at least one first heat-transfer-fluid aperture.

5. The extruding nozzle of claim 3 , wherein the at least one first heat-transfer-fluid aperture, the at least one first heat-transfer-fluid aperture, the at least one third heat-transfer-fluid aperture, and the at least one fourth heat-transfer-fluid aperture have substantially identical fluid flow rates.

6. The extruding nozzle of claim 1 , wherein the at least one material-flow channel extends through the at least one peripheral wall of the core member.

7. The extruding nozzle of claim 1 , wherein the at least one material-flow channel comprises an internal wall forming a fluid passage having a tapered cross-sectional shape with a width that varies along a length of the fluid passage.

8. An extruding nozzle system comprising:
an extruding nozzle comprising:
a housing,
a radiator at least partially disposed within the housing, the radiator comprising:
a core member comprising at least one peripheral wall,
a heat-transfer-fluid passage, formed by the at least one peripheral wall within an interior of the core member,
at least one first heat-transfer-fluid aperture extending through the at least one peripheral wall,
heat-transfer fins, extending outward from the at least one peripheral wall, and
at least one second heat-transfer-fluid aperture extending through the at least one peripheral wall and communicably coupling the heat-transfer-fluid passage and the heat-transfer fins so that cooling-fluid flow is provided therebetween;

at least one material-flow channel, at least a portion of which is located within the housing, wherein the at least one material-flow channel extends through the radiator, and
a breaker head, rotatably coupled to one or more of the housing and the radiator, the breaker head being configured to break extruded material, exiting the at least one material-flow channel into pellets; and

a drive coupled to the breaker head so as to rotate the breaker head in a predetermined rotational movement.

9. The extruding nozzle system of claim 8 , wherein the at least one material-flow channel comprises an internal wall, forming a fluid passage that has a tapered cross-sectional shape with a width that varies along a length of the fluid passage.

10. The extruding nozzle system of claim 9 , wherein the width of the tapered cross-sectional shape increases in a flow direction of the extruded material, flowing through the fluid passage.

11. The extruding nozzle system of claim 8 , wherein:
the breaker head is configured to substantially simultaneously break the extruded material, exiting each of the at least one material-flow channel, into the pellets;
the extruded material comprises reinforcing fibers; and
the reinforcing fibers within the extruded material remain intact at broken ends of the pellets.

12. The extruding nozzle system of claim 8 , wherein the breaker head comprises at least one sickle shaped tooth.

13. The extruding nozzle system of claim 8 , wherein a cross-sectional area of an exit aperture of the at least one material-flow channel is larger than a cross-sectional area of the extruded material, flowing therethrough, so that the breaker head effects lateral movement of the extruded material relative to the at least one material-flow channel that forces the extruded material against an internal wall of the at least one material-flow channel.

14. The extruding nozzle of claim 1 , further comprising an extruder flange, coupled to one or more of the housing or the radiator, wherein the extruder flange is configured to couple the extruding nozzle to an extruder machine.

15. The extruding nozzle of claim 1 , further comprising a diverter member, coupled to the radiator, wherein the diverter member is configured to divert extruded material from an extruding machine to the at least one material-flow channel.

16. The extruding nozzle of claim 1 , further comprising a breaker head, rotatably coupled to one or more of the housing and the radiator, wherein the breaker head is configured to break extruded material, exiting the at least one material-flow channel, into pellets.

17. The extruding nozzle system of claim 8 , wherein the breaker head comprises teeth, having a circumferential spacing that corresponds to a circumferential spacing of the at least one material-flow channel so as to substantially simultaneously break the extruded material, exiting each of the at least one material-flow channel, into the pellets.

18. The extruding nozzle system of claim 8 , wherein the drive comprises:
a drive motor; and
a controller, configured to activate and deactivate the drive motor.

19. The extruding nozzle system of claim 18 , wherein the controller is configured to activate and deactivate the drive motor at predetermined periodic time intervals.

20. The extruding nozzle of claim 16 , wherein a cross-sectional area of an exit aperture of the at least one material-flow channel is larger than a cross-sectional area of extruded material, flowing therethrough, so that the breaker head effects lateral movement of the extruded material relative to the at least one material-flow channel that forces the extruded material against an internal wall of the at least one material-flow channel.

Assignees

• Boeing Co

Inventors

• Olberg Jeffrey H
• Metschan Stephen L
• Phillips Richard V
• Perron Daniel J

Classifications

• B01J2/20 Primary

  by expressing the material, e.g. through sieves and fragmenting the extruded length · CPC title

• B29C48/865

  Heating · CPC title

• B29C48/345

  Extrusion nozzles comprising two or more adjacently arranged ports, for simultaneously extruding multiple strands, e.g. for pelletising · CPC title

• B29C48/0022

  combined with cutting · CPC title

• B29C48/05

  Filamentary, e.g. strands · CPC title