JPH061246Y2 - Spraying device - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a spraying device suitable for spraying a surface in an inspection in a narrow space, a painting work, or the like.

[Prior Art] Conventionally, as a spraying device used for a flaw detection inspection of a pipe surface in a narrow environment in which obstacles such as in a pipe group are scattered and for spraying in painting, for example, as shown in a side view of FIG. , The spray nozzle 1 is projected from the end of the spray device main body 7, and the liquid agent tank 2 is housed therein.
There is a device in which the liquid agent is guided from the liquid agent tank 2 by the air 3 supplied from a direction orthogonal to the nozzle axis, and the liquid agent is ejected in a mist state from the tip of the spray nozzle 1 by directing the tip of the liquid agent substantially at right angles to the spray surface 8.

However, various sizes of particles are mixed in the atomized liquid agent sprayed from such a spraying device, and for example, in a penetrant inspection, if large particles adhere, the cracked state of the surface to be inspected becomes unclear. Can not. Therefore, in order to obtain uniform small atomized particles, the tip position d of the spray nozzle 1 has to be farther from the spray surface 8, but the larger the spray nozzle 1 is from the spray surface 8, the larger the shape of the apparatus main body 7 becomes. However, there is a problem that the space required for the arrangement becomes large and the application range in the narrow space is limited.

[Problems to be solved by the invention]

The present invention has been proposed in view of such circumstances,
Only uniform small atomized particles are sprayed to the target area,
It is an object of the present invention to provide a spraying device that enables downsizing of the device and enables the spraying work in a narrow space to be performed effectively and accurately.

[Means for solving problems]

To this end, the present invention provides a liquid agent tank housed in the apparatus main body, a spray nozzle projecting from the apparatus main body, and spraying the liquid agent in the liquid agent tank in a mist form from the tip by air.
An air nozzle that is disposed on the side of the tip of the spray nozzle and blows branched air from the air to the atomized liquid agent from the side, a valve that adjusts the supply air pressure to the air nozzle, and a valve that faces the tip of the spray nozzle. And an absorption tool that receives only large particles of the atomized liquid agent.

[Action]

With the above configuration, only uniform small atomized particles are sprayed to the target location, the size of the device can be reduced, and a spraying device can be obtained in which the spraying work in the narrow space can be performed effectively and accurately.

〔Example〕

An embodiment of the spraying device of the present invention will be described with reference to the drawings.
FIG. 1 is a side view thereof.

In the above figure, the spraying device of the present invention comprises a liquid agent tank 2 stored in an apparatus main body 7 and containing a sprayed liquid agent, and a liquid agent tank projecting from the apparatus main body 7 in front of the liquid agent tank 2 and guided by air 3. A spray nozzle 1 for spraying the liquid agent in 2 from the tip in the form of a mist, an air nozzle 4 disposed on the side of the tip of the spray nozzle 1 for spraying air branched from the air 3 to the atomized liquid agent from the side, and the same air nozzle 4 is provided with a control valve 5 for adjusting the air pressure supplied to the spray nozzle 4, and an absorbing tool 6 such as a sponge which is arranged so as to face the tip of the spray nozzle 1 and receives only large particles of the atomized liquid agent.

In such a device, the liquid agent tank 2 is housed, the air 3 is supplied to the device main body 7, the liquid agent is guided by a negative pressure, and the atomized thing is not directed from the spray nozzle 1 to the spraying surface 8, It is ejected in a parallel direction like.

On the other hand, from the air nozzle 4 on the side of the tip of the spray nozzle 1, only the air branched from the air 3 is ejected in a direction different from the nozzle 1 in the ejection direction, that is, in the desired direction, and the control valve 5 appropriately adjusts the air pressure and flow rate. To do.

Then, only small particles among the mist-like particles ejected from the spray nozzle 1 are blown off by the air in different directions from the side air nozzles 4 to change the ejection direction, and only uniform and small particles are applied to the spray surface 8. To reach. At that time, large particles go straight without changing the ejection direction and are sucked up by the absorbing tool 6.

In this way, the spraying device can face the spraying surface 8 in an arbitrary direction such as a parallel posture, and the spraying nozzle 1 can be arranged at a short distance, so that the device can be downsized and arranged. It also means that less space is required.

[Effect of device]

In short, according to the present invention, the liquid agent tank stored in the apparatus main body, the spray nozzle projecting from the apparatus main body for ejecting the liquid agent in the liquid agent tank in a mist form from the tip, and the tip of the spray nozzle An air nozzle that is disposed on the side and blows branched air from the air onto the atomized liquid agent from the side, and a valve that adjusts the supply air pressure to the air nozzle,
By including an absorbing tool which is arranged facing the tip of the spray nozzle and receives only large particles of the atomized liquid agent, only uniform small atomized particles are sprayed to the target location, and the device can be downsized. The present invention is extremely useful industrially because it enables a spraying device capable of performing the spraying work in a narrow space effectively and accurately.

[Brief description of drawings]

FIG. 1 is a side view of an embodiment of the spraying device of the present invention, and FIG. 2 is a side view of a conventional spraying device. 1 ... Spray nozzle, 2 ... Liquid tank, 3 ... Air, 4 ... Air nozzle, 5 ... Control valve, 6 ... Absorption tool, 7 ...
Device body, 8 ... Spraying surface.

Claims (1)

[Scope of utility model registration request] 1. A liquid agent tank housed in an apparatus main body, a spray nozzle projecting from the apparatus main body for ejecting the liquid agent in the liquid agent tank in a mist form from the tip by air, and a side of the tip of the spray nozzle. An air nozzle that blows branched air from the air to the atomized liquid agent from a side, a valve that adjusts the supply air pressure to the air nozzle, and an atomized liquid agent that is disposed opposite to the tip of the spray nozzle. A spraying device characterized by comprising an absorbing tool for receiving only large particles.