Coating Product Applicator, Application Installation Comprising Such an Applicator and Application Method Using Such an Applicator

Patent metadata

Field	Value
Publication number	US-2020331023-A1
Application number	US-202016851927-A
Country	US
Kind code	A1
Filing date	Apr 17, 2020
Priority date	Apr 19, 2019
Publication date	Oct 22, 2020
Grant date	—

Abstract

An applicator for a coating product comprising printing nozzles, each including an outlet channel emerging in the downstream direction by a coating product discharge orifice. The printing nozzles are distributed on at least two faces of a body of the applicator and the discharge orifices of these nozzles extend along at least two nonparallel planes.

First claim

The invention claimed is:

1 . A coating product applicator comprising printing nozzles each including an outlet channel emerging in the downstream direction by a coating product discharge orifice, wherein the printing nozzles are distributed on at least two faces of a body of the applicator and wherein the discharge orifices of these nozzles extend along at least two nonparallel planes.

2 . The applicator according to claim 1 , wherein the two planes form, between them and on the side of the body of the applicator, an angle of between 30° and 150°.

3 . The applicator according to claim 2 , wherein the angle between the two planes is between 60 and 120°.

4 . The applicator according to claim 3 , wherein the angle between the two planes is equal to 60°, 90° or 120°.

5 . The applicator according to claim 1 , wherein it comprises several first printing nozzles, the discharge orifices of which are distributed on a first face of the body, and at least one second printing nozzle, the outlet orifice of which is on a second face of the body, and wherein the number of first nozzles is different from the number of second nozzle(s).

6 . The applicator according to claim 1 , characterized in that the printing nozzles distributed on both faces of the body are of the same type and have discharge orifices with identical dimensions.

7 . The applicator according to claim 1 , wherein the printing nozzles distributed on both faces of the body are of the same type and have, on each face, discharge orifices with identical dimensions and, between two faces, discharge orifices with different dimensions.

8 . The applicator according to claim 1 , wherein the two faces of the body on which the printing nozzles are distributed are adjacent.

9 . The applicator according to claim 1 , wherein the printing nozzles distributed on two separate faces of the body are activated independently of one another when the applicator is operating.

10 . The applicator according to claim 1 , intended for the application of a dual- or multi-component coating product, wherein it comprises a mixer integrated into the body of the applicator, upstream from the printing nozzles.

11 . An installation for applying a coating product on objects to be coated, which comprises at least one applicator according to claim 1 .

12 . The installation of claim 11 , wherein the applicator is mounted on an arm of a multiaxial robot provided to move it relative to the objects to be coated.

13 . A method for applying coating product on an object to be coated, using an applicator according to claim 1 , wherein it comprises at least the following steps consisting of:
a) producing a pattern with the coating product, by moving the applicator along a first movement axis, while first printing nozzles distributed on a first face of the body of the applicator are active; and b) making at least one transverse border of the pattern, by moving the applicator along a second axis perpendicular to the first axis, while second printing nozzles distributed on a second face of the body are active.

14 . The method according to claim 13 , wherein, during steps a) and/or b), the application distance between the discharge orifices of the active printing nozzles and the surface of an object in the process of being coated is between 5 and 50 mm.

Assignees

• Exel Ind

Inventors

• Chouan Nicolas
• Medard Cyrille

Classifications

• B41J3/4073 Primary

  Printing on three-dimensional objects not being in sheet or web form, e.g. spherical or cubic objects (B41J3/283, B41J3/286 take precedence; building up a 3D object using individual droplets from jetting heads B29C64/112) · CPC title

• B41J2/14 Primary

  Structure thereof {only for on-demand ink jet heads} · CPC title

• B25J15/0019

  End effectors other than grippers · CPC title

• B25J11/0075

  Manipulators for painting or coating · CPC title

• B05D1/02 Primary

  performed by spraying · CPC title