Modular nozzle having a wear-resistant housing part

Patent metadata

Field	Value
Publication number	US-2016228884-A1
Application number	US-201415021612-A
Country	US
Kind code	A1
Filing date	Aug 19, 2014
Priority date	Sep 30, 2013
Publication date	Aug 11, 2016
Grant date	—

Abstract

The invention relates to a nozzle ( 1 ) for atomizing coating materials, in particular coating powder, wherein the nozzle ( 1 ) comprises a housing ( 10 ), which has a first, inlet-side opening ( 11 ) and a second, outlet-side opening ( 12 ), and the openings are connected to each other by means of a passage channel ( 13 ). The housing ( 10 ) has an inner housing part ( 20 ), which defines the passage channel ( 13 ), and an outer housing part ( 30 ), which is designed to detachably connect the nozzle ( 1 ) to a coating device. According to the invention, in order to optimize the production process for the nozzle and to reduce costs, the inner housing part ( 20 ) and the outer housing part ( 30 ) are designed as separate individual pieces.

First claim

1 . A nozzle ( 1 ) for spraying coating material, particularly coating powder,
wherein the nozzle ( 1 ) comprises a housing ( 10 ) having a first, inlet-side opening ( 11 ) and a second, outlet-side opening ( 12 ) with the openings being connected together by means of a through-channel ( 13 ), wherein the housing ( 10 ) comprises an inner housing part ( 20 ), which defines the through-channel ( 13 ), and an outer housing part ( 30 ), which is designed to detachably connect the nozzle ( 1 ) to a coating mechanism,
characterized in that
the inner housing part ( 20 ) and the outer housing part ( 30 ) are formed as separate individual component parts.

2 . The nozzle ( 1 ) according to claim 1 ,
wherein the inner housing part ( 20 ) is formed from a different material than the outer housing part ( 30 ).

3 . The nozzle ( 1 ) according to claim 2 ,
wherein the inner housing part ( 20 ) is formed from polytetrafluoroethylene.

4 . The nozzle ( 1 ) according to claim 2 or 3 ,
wherein the outer housing part ( 30 ) is formed from polypropylene.

5 . The nozzle ( 1 ) according to any one of claims 1 to 4 ,
wherein the inner housing part ( 20 ) is detachably connected to the outer housing part ( 30 ).

6 . The nozzle ( 1 ) according to claim 5 ,
wherein the outer housing part ( 30 ) comprises an interior projection ( 34 ) having a shoulder ( 35 ) which is formed to positively engage in an exterior groove ( 21 ) of the inner housing part ( 20 ).

7 . The nozzle ( 1 ) according to claim 6 ,
wherein the interior projection ( 34 ) of the outer housing part ( 30 ) is designed such that the height of the projection ( 34 ) continually increases toward the inlet-side opening ( 11 ) of the housing ( 10 ) until reaching the shoulder ( 35 ) of the projection ( 35 ).

8 . The nozzle ( 1 ) according to any one of the preceding claims,
wherein the inner and/or the outer housing part ( 20 , 30 ) is a turned part.

9 . The nozzle ( 1 ) according to any one of the preceding claims,
wherein the inner and/or the outer housing part ( 20 , 30 ) is an injection-molded part.

10 . The nozzle ( 1 ) according to any one of the preceding claims,
wherein the second opening ( 12 ) of the housing ( 10 ) is configured as a slot.

Assignees

• Gema Switzerland Gmbh

Inventors

• Sanwald Marco

Classifications

• B05B1/044 Primary

  Slits, e.g. narrow openings defined by two straight and parallel lips; Elongated outlets for producing very wide discharges, e.g. fluid curtains (B05B1/046 takes precedence) · CPC title

• B05B1/00

  Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means (B05B3/00, B05B5/00, B05B7/00 take precedence; devices for applying liquids or other fluent materials to surfaces by contact B05C; nozzles for ink-jet printing mechanisms B41J2/135; nozzles for liquid-dispensing, e.g. in vehicle service stations, B67D7/42) · CPC title

• B05B7/1486

  for spraying particulate material in dry state · CPC title

• B05B7/14

  designed for spraying particulate materials (B05B7/16 takes precedence) · CPC title

• B05B15/18

  for improving resistance to wear, e.g. inserts or coatings; for indicating wear; for handling or replacing worn parts · CPC title