Powder coating system for coating workpieces with coating powder
AssigneeWagner International AG
InventorsEugen LOOS, Joachim HIRT
Life of this patent
Estimating the term…
Abstract
The powder coating system according to the invention for coating workpieces with coating powder has a coating cubicle (3) and a cyclone separator (5), the coating cubicle (3) being connected to the cyclone separator (5) via a residual powder pipe (4). The cyclone separator (5) comprises in its inlet region an outlet tube (23) in which there is disposed a guide apparatus (50) that has multiple blades (51). These are designed so that the air vortex (28) impinging on the blades (51) can be deflected into a vertical air stream (30).
Claims14
A powder coating system for coating workpieces with coating powder,
- wherein
- a coating cubicle (3) and a cyclone separator (5) are provided,
- the coating cubicle (3) is connected to the cyclone separator (5) via a residual powder pipe (4),
- an outlet tube (23) is provided in the outlet tract (5.3) of the cyclone separator (5), in which outlet tube (23) a guide apparatus (50;
- 60;
- 70;
- 80;
- 90) is disposed,
- the guide apparatus (50;
- 60;
- 70;
- 80 90) has multiple blades (51) which are designed such that the air vortex (28) impinging on the blades (51) can be deflected at least partially into an eddy-free air stream (30).
The powder coating system according to any one of the preceding claims,
- wherein at least some of the blades (51) in the inlet region (50.1) and the longitudinal axis (LA) of the guide apparatus (50) each form an angle (ε) between 40° and 70°.
The powder coating system according to any one of the preceding claims,
- wherein the blades (51) in the outlet region (50.2) are designed to be rectilinear.
The powder coating system according to any one of the preceding claims,
- wherein at least some of the blades (51) in the outlet region (50.2) have a surface (51.1) which is aligned parallel to the longitudinal axis (LA).
The powder coating system according to any one of the preceding claims,
- wherein the guide apparatus (50;
- 60;
- 70;
- 80;
- 90) tapers on its downstream side (50.2).
The powder coating system according to any one of the preceding claims,
- wherein the guide apparatus (50;
- 60;
- 70;
- 80;
- 90) has a holder (53) by means of which it can be disposed in the outlet tube (23).
The powder coating system according to any one of the preceding claims,
- wherein the guide apparatus (50;
- 60;
- 70;
- 80;
- 90) tapers on its upstream side (50.2).
The powder coating system according to any one of the preceding claims,
- wherein a fan-shaped guide blade (14) is provided in the inlet tract (5.1) of the cyclone separator (5).
The powder coating system according to any one of the preceding claims,
- wherein
- a residual powder pipe (13) each is disposed along the longitudinal sides of the coating cubicle (3),
- a collecting tube (130) is provided, which extends transversely to the residual powder pipes (13) and into which the residual powder pipes (13) open,
- the collecting tube (130) has a cross section which widens substantially continuously over the length of the collecting tube.
The powder coating system for coating workpieces with coating powder,
- wherein
- a coating cubicle (3) and a cyclone separator (5) and/or a filter (9) are provided,
- the coating cubicle (3) is connected to the cyclone separator (5) or the filter (9) via a residual powder pipe (4),
- the residual powder pipe (4) has at least one bend (42;
- 44) to deflect the powder-air stream (20′;
- 20″) in another direction
- the bend (42) has a short, curved outer wall (42.1) and a long, curved outer wall (42.2),
- wherein the long, curved outer wall (42.2) has a bulge (42.24).
Dependencies are inferred from the claim text.