Atomizer Comprising an Air Supply Skirt and Method of Mounting Such a Skirt on a Main Body of Such an Atomizer

Patent metadata

Field	Value
Publication number	US-2025058342-A1
Application number	US-202418803000-A
Country	US
Kind code	A1
Filing date	Aug 13, 2024
Priority date	Aug 14, 2023
Publication date	Feb 20, 2025
Grant date	—

Abstract

The present invention relates to a coating product atomizer comprising a main body, an air supply skirt attached to the main body and magnetic attraction means between the magnetic body and the air supply skirt. The atomizer comprises a magneto-pneumatic or magneto-hydraulic system which includes a magnetic device for hooking the air supply skirt to the main body and a pneumatic or hydraulic mechanism for locking and clamping the air supply skirt to the main body.

First claim

1 . A coating product atomizer comprising:
a main body; an air supply skirt attached to the main body; a magnetic attraction means between the magnetic body and the air supply skirt; and a magneto-pneumatic or magneto-hydraulic system which includes:
a magnetic device for hooking the air supply skirt to the main body; and
a pneumatic or hydraulic mechanism for locking and clamping the air supply skirt to the main body.

2 . The coating product atomizer according to claim 1 , wherein:
the magnetic hooking device is configured to exert, between the air supply skirt and the main body, an axial magnetic force, parallel to a longitudinal axis of the atomizer, with a first intensity; wherein the pneumatic or hydraulic clamping mechanism is configured to exert, between the air supply skirt and the main body, an axial mechanical force, parallel to the longitudinal axis of the atomizer, with a second intensity, and wherein the second intensity is strictly greater than the first intensity.

3 . The coating product atomizer according to claim 2 further comprising:
seals arranged between the air supply skirt and the main body, wherein the seals, compressed by the mechanical force exerted by the pneumatic or hydraulic clamping mechanism, isolate the air flow ducts arranged in the main body and in a body of the air supply skirt vis-a-vis the outside of the atomizer.

4 . The coating product atomizer according to claim 1 , wherein the air supply skirt comprises a sleeve made of a ferromagnetic material, centered on a longitudinal axis of the atomizer in the mounted configuration of the air supply skirt on the main body, and provided with at least one external relief for cooperation with the pneumatic or hydraulic clamping mechanism.

5 . The coating product atomizer according to claim 4 , wherein the magnetic hooking device comprises a permanent magnet mounted on a support, movable parallel to the longitudinal axis of the atomizer, and wherein the permanent magnet on the support is configured to receive in abutment one end of the sleeve opposite a skirt body.

6 . The coating product atomizer according to claim 4 , wherein the pneumatic or hydraulic clamping mechanism comprises a piston, movable parallel to the longitudinal axis of the atomizer, inside a chamber selectively supplied with pressurized fluid, and wherein the piston is equipped with engagement members for engagement with the external relief of the sleeve.

7 . The coating product atomizer according to claim 6 , wherein:
the engagement members are balls; and the piston comprises cam surfaces inclined relative to the longitudinal axis of the atomizer; and
wherein when the air supply skirt is hooked onto the main body by the magnetic hooking device and when the piston is displaced toward an end of the sleeve opposite a body of the air supply skirt, the cam surfaces exert on the balls an engagement force in the external relief of the sleeve, the engagement force being centripetal relative to the longitudinal axis.

8 . The coating product atomizer according to claim 6 further comprising at least one elastic member for returning the piston toward a position in which the engagement members are disengaged from the external relief of the sleeve.

9 . The coating product atomizer according to claim 1 further comprising a tool for dismantling the air supply skirt, the dismantling tool comprising reliefs for hooking onto the air supply skirt and being configured to exert on the air supply skirt a force parallel to a longitudinal axis of the atomizer and opposite to a magnetic force exerted on the air supply skirt by the magnetic hooking device.

10 . A method for mounting an air supply skirt on a main body of the coating product atomizer of claim 1 , the method comprising at least successive steps consisting of:
a) introducing a sleeve of the air supply skirt into a central housing of the main body until the magnetic hooking device exerts a magnetic hooking force on the air supply skirt on the main body; and b) supplying the pneumatic or hydraulic clamping mechanism with pressurized fluid until the pneumatic or hydraulic clamping mechanism exerts a mechanical force to clamp the air supply skirt to the main body.

11 . The method of claim 10 , wherein:
the air supply skirt of the coating product atomizer comprises a sleeve made of a ferromagnetic material, centered on a longitudinal axis of the atomizer in the mounted configuration of the air supply skirt on the main body and provided with at least one external relief for cooperation with the pneumatic or hydraulic clamping mechanism; the pneumatic or hydraulic clamping mechanism comprises a piston, movable parallel to the longitudinal axis of the atomizer, inside a chamber selectively supplied with pressurized fluid; the piston is equipped with engagement members for engagement with the external relief of the sleeve; the engagement members are balls; the piston comprises cam surfaces inclined relative to the longitudinal axis of the atomizer; when the air supply skirt is hooked onto the main body by the magnetic hooking device and when the piston is displaced toward an end of the sleeve opposite a body of the air supply skirt, the cam surfaces exert on the balls an engagement force in the external relief of the sleeve, this force being centripetal relative to the longitudinal axis; and during step b), the piston displaces the balls in the direction of a bottom of the central housing, driving the sleeve with the balls engaged in the external relief.

Assignees

• Exel Ind

Inventors

• Vanzetto Denis

Classifications

• B05B5/03 Primary

  characterised by the use of gas {, e.g. electrostatically assisted pneumatic spraying (B05B5/04, B05B5/043, B05B5/047 take precedence)} · CPC title

• B25J11/0075

  Manipulators for painting or coating · CPC title

• B25J19/0033

  with axial connectors in end effector flange · CPC title

• B05B15/65

  Mounting arrangements for fluid connection of the spraying apparatus or its outlets to flow conduits · CPC title

• B05B13/0447

  Installation or apparatus for applying liquid or other fluent material to conveyed separate articles (B05B13/0442 takes precedence) · CPC title