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US 9,427,753 B2Granted
Rotary atomizer
AssigneeRansburg Industrial Finishing K.K.
InventorsMasayuki Kuroda, Kenji Nagato
Life of this patent
Estimating the term…
Abstract
In a rotary atomizer (10) including a rotating bell (92) secured to a rotating shaft (20a) of an air motor (20) held in an atomizer body, the rotating bell having a plurality of orifices (92a) for supplying paint to an object to be painted, the rotating bell being rotated to spray the paint toward the object to be painted, the rotary atomizer comprises a paint passage (102a) with a paint port (112c) at an end thereof fluidly communicating with the orifices of the rotating bell, and a water passage (108) arranged outside of the paint passage and having a water port at an end of the water passage leading to the orifices of the rotating bell. A needle (94) for opening and closing the paint port may be provided.
Claims19
A method, comprising:
- flowing a paint through a paint supply passage disposed in a manifold;
- flowing the paint through an inner tube of a double tube assembly, wherein the inner tube extends through a rotary shaft along a longitudinal axis and is fluidly coupled to the paint supply passage;
- flowing water through a water supply passage disposed in the manifold;
- flowing the water through a passage disposed between an outer surface of the inner tube and an inner surface of a concentric outer tube, wherein an inner diameter of the outer tube is greater than an outer diameter of the inner tube, the outer tube extends through the rotary shaft along the longitudinal axis, and the passage is fluidly coupled to the water supply passage;
- flowing air through an air supply passage disposed in the manifold;
- rotationally driving the rotary shaft to rotate about the longitudinal axis by air supplied through the air supply passage, wherein the rotary shaft is coupled to an air motor disposed in a front part of the manifold;
- rotating a rotary bell coupled to the rotary shaft, wherein the rotary bell comprises a plurality of orifices fluidly coupled to the inner tube and the passage;
- and
- dispensing the paint and the water simultaneously toward an object to be painted through the plurality of orifices.
6 more elements
A system, comprising:
- a rotary atomizer, comprising:
- a rotary bell coupled to a rotary shaft of an air motor disposed in an atomizer body of the rotary atomizer, wherein the rotary bell comprises a plurality of orifices configured to dispense paint toward an object to be painted, and the rotary bell is configured to rotate to atomize the paint so as to spray the paint toward the object to be painted;
- a paint passage comprising a paint port disposed at a paint passage distal end, wherein the paint passage is fluidly coupled to the plurality of orifices, and the paint passage extends along an inner surface of a first tube;
- and
- a needle configured to open and close the paint port;
- and
- a water passage disposed outside of the paint passage, wherein the water passage comprises a water port disposed at a water passage distal end, the water passage is fluidly coupled to the plurality of orifices, the water passage extends between an outer surface of the first tube and an inner surface of a second tube, the first tube and the second tube each extend through the rotary shaft, and the plurality of orifices are configured to dispense the paint and water simultaneously.
4 more elements
A system, comprising:
- a rotary atomizer, comprising:
- a manifold comprising a paint supply passage, an air supply passage, and a water supply passage;
- an air motor disposed in a front part of the manifold, wherein the air motor comprises a rotary shaft rotatable about a longitudinal axis, and the rotary shaft is configured to be driven by air supplied by the air supply passage;
- a double tube assembly comprising an inner tube extending through the rotary shaft along the longitudinal axis, wherein the inner tube is configured to flow paint from the paint supply passage, and a concentric outer tube having an inner diameter larger than an outer diameter of the inner tube, wherein the outer tube extends through the rotary shaft along the longitudinal axis so as to define a passage between an outer surface of the inner tube and an inner surface of the outer tube, wherein the passage is configured to flow water from the water supply passage;
- a rotary bell coupled to the rotary shaft to rotate therewith, wherein the rotary bell comprises a plurality of orifices configured to dispense paint toward an object to be painted;
- a pneumatic trigger valve coupled to the manifold, wherein the pneumatic trigger valve comprises a valve stem movable along the longitudinal axis between an open position and a closed position;
- and
- a needle coupled to the valve stem and extending through the inner tube of the double tube assembly, wherein the needle comprises a valve body disposed at a valve body distal end and the needle is configured to extend beyond an inner tube distal end.
5 more elements
Dependencies are inferred from the claim text.