The invention relates to a nozzle head for a spray device, comprising a central material nozzle, an air ring nozzle surrounding said material nozzle, and preferably at least two laterally projecting horns, into each of which at least one horn air nozzle is incorporated, and optionally comprising a m
The invention relates to a nozzle head for a spray device, comprising a central material nozzle, an air ring nozzle surrounding said material nozzle, and preferably at least two laterally projecting horns, into each of which at least one horn air nozzle is incorporated, and optionally comprising a material-conducting needle, characterized in that at least one nozzle (3, 3a, 3b, 5, 5a, 12, 12a, 12b, 15, 16, 17, 17a, 17b, 17c, 18, 18a, 18b1, 18b2, 18b3, 300a, 300b), preferably at least one horn air nozzle (15, 16, 17, 17a, 17b, 18, 18a, 18b1, 18b2, 18b3, 300a), has a non-cylindrical shape.
대표청구항▼
1. A nozzle head for a spray device, comprising: a liquid conveying channel having a liquid conveying nozzle opening;a hollow air conveying needle connected to a source of compressed air and disposed within the liquid conveying channel and having a non-cylindrical shaped air conveying opening at an
1. A nozzle head for a spray device, comprising: a liquid conveying channel having a liquid conveying nozzle opening;a hollow air conveying needle connected to a source of compressed air and disposed within the liquid conveying channel and having a non-cylindrical shaped air conveying opening at an endmost tip of the needle, the needle displaceable to block the liquid conveying channel while not blocking the air conveying opening at the endmost tip;an air ring nozzle surrounding said liquid conveying channel; andat least two horns projecting laterally and away from the liquid conveying channel, each horn having a plurality of non-circular air horn nozzles each having a longer axis that is perpendicular to a shorter axis, and the longer axis is aligned with a direction of spray of the liquid when the device is spraying the liquid. 2. The nozzle head of claim 1, wherein the non-cylindrical shaped air conveying opening is oval shaped. 3. The nozzle head of claim 1, wherein the plurality of air horn nozzles each have an opening which is oval in shape. 4. The nozzle head of claim 1, further including a plurality of air discharging control nozzles disposed radially with respect to the hollow air conveying needle and liquid conveying channel. 5. The nozzle head according to claim 1, wherein the air ring nozzle has a non-cylindrical shape. 6. The nozzle head according to claim 1, further comprising at least one control opening with a non-cylindrical shape provided adjacent to the air ring nozzle. 7. The nozzle head according to claim 1, wherein the at least one of the non-circular air horn nozzles is mounted on the nozzle head by means of an insert. 8. The nozzle head according to claim 1, wherein at least one of the nozzles is realized with an elliptical cross section. 9. The nozzle head according to claim 1, wherein the internal size of the nozzles is widened or tapered along the longitudinal direction. 10. The nozzle head according to claim 1, wherein the air ring nozzle is recessed into the nozzle head or a component connected thereto. 11. The nozzle head according to claim 1, wherein at least one nozzle is formed within an insert connectable to the nozzle head or to a component connected thereto. 12. The nozzle head according to claim 1, wherein at least one nozzle is recessed into an air cap of a paint spray gun. 13. The nozzle head according to claim 1, wherein the needle is mateably seatable in the nozzle head to block the liquid conveying channel. 14. The nozzle head according to claim 1, wherein one or more control nozzles are provided. 15. The nozzle head according to claim 1, wherein the air ring nozzle is attached, clipped or screwed onto the spray device. 16. The nozzle head according to claim 15, wherein the air ring nozzle is realized in one piece with a portion of the spray device. 17. The nozzle head according to claim 1, wherein the nozzle head is at least partially made of plastic. 18. The nozzle head according to claim 17, wherein the nozzle head includes an air cap that is made of plastic. 19. The nozzle head according to claim 17, wherein a nozzle-guiding insert in the nozzle head is made of plastic. 20. The nozzle head according to claim 18, wherein the nozzle head is otherwise made of metal. 21. The nozzle head according to claim 1, wherein the nozzle head is directly connected to a body of the spray device. 22. The nozzle head according to claim 1, wherein the nozzle head is connected to a separate device which is connected to the body of the spray device. 23. The nozzle head according to claim 1, wherein the spray device is a pneumatic spray gun. 24. The nozzle head according to claim 1, wherein the spray device is a hydrostatic spray gun. 25. The nozzle head according to claim 1, wherein the spray device is a combined pneumatic/hydrostatic spray gun.
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