Apparatus, system and method for in-line additive manufacturing nozzle inspection
View Patent ↗An additive manufacturing apparatus, system, and method. More particularly, the disclosed in-line nozzle inspection apparatus, system and method are suitable to monitor an additive manufacturing print nozzle, and may include: at least one sensor integrated with a motion driver for the print nozzle; a plurality of imaging lenses suitable to provide a substantially complete field of view at least about a tip of the print nozzle; and a comparative engine suitable to compare the field of view state to an acceptable state of the print nozzle, and to execute a cleaning of the print nozzle if the field of view state is unacceptable.
1 . An in-line nozzle inspection system suitable to monitor an additive manufacturing print nozzle, comprising:
at least one sensor integrated with a motion driver for the print nozzle;
a plurality of imaging lenses comprising:
two indirect reflective lenses on a first side of the print nozzle; and
three direct reflective lens portions on an opposing side of the print nozzle, wherein the three direct reflective lens portions align with the at least one sensor, the three direct reflective lens portions comprising:
an outer two of the direct reflective lens portions that are aligned with the two indirect reflective lenses;
the plurality of imaging lenses configured to provide a substantially complete 360-degree field of view at least about a tip of the print nozzle to the at least one sensor; and
a comparative engine suitable to compare the field of view state received by the at least one sensor to a clean state of the print nozzle, and to execute a cleaning of the print nozzle if the field of view comparison indicates an unclean state of the print nozzle.
2 . The in-line nozzle inspection system of claim 1 , wherein the at least one sensor comprises at least one camera.
3 . The in-line nozzle inspection system of claim 1 , wherein at least one of the sensors comprises an optical sensor.
4 . The in-line nozzle inspection system of claim 1 , wherein integration of the at least one sensor with the motion driver comprises a physical mount.
5 . The in-line nozzle inspection system of claim 1 , wherein the field of view of the print nozzle comprises a field of view solely of the tip of the print nozzle.
6 . The in-line nozzle inspection system of claim 1 , wherein an acceptable state comprises a template image.
7 . The in-line nozzle inspection system of claim 6 , wherein the comparison comprises a subtractive comparison to the template image.
8 . The in-line nozzle inspection system of claim 7 , wherein the subtractive comparison comprises a maximum variance from the template image.
9 . The in-line nozzle inspection system of claim 7 , wherein the subtractive comparison comprises an optimum variance from the template image.
10 . The in-line nozzle inspection system of claim 1 , wherein the clean state comprises a feature characteristic of the print nozzle.
11 . The in-line nozzle inspection system of claim 1 , wherein the comparison comprises a feature characteristic comparison.
12 . The in-line nozzle inspection system of claim 1 , further comprising a cleaning station.
13 . The in-line nozzle inspection system of claim 12 , wherein the execution of the cleaning comprises a movement by the motion driver of the print nozzle into the cleaning station.
14 . The in-line nozzle inspection system of claim 12 , wherein the cleaning station cleans clogs of the print nozzle.
15 . The in-line nozzle inspection system of claim 12 , wherein the cleaning station cleans buildup from the print nozzle.
16 . The in-line nozzle inspection system of claim 1 , wherein the print nozzle comprises a fused deposition modelling print nozzle.
17 . The in-line nozzle inspection system of claim 1 , wherein the motion driver operates in three axes.
18 . The in-line nozzle inspection system of claim 1 , wherein the field of view comprises all portions of the nozzle.