Spraying device improving spraying uniformity

Abstract

The invention discloses a spraying device improving spraying uniformity. The spraying device is characterized by comprising a nozzle shell. A standard connector is arranged at the top of the nozzle shell. A nozzle outlet is formed in the bottom of the nozzle shell. The nozzle shell is internally provided with a cavity in a goblet shape. The cavity communicates with the standard connector and the nozzle outlet. Ethanol solution with micro rod-like particles is arranged in the interlayer encircled between the cavity and the nozzle shell in a filling mode. An ethyl alcohol filling opening with asealing cover is formed in the outer wall of the upper portion of the nozzle shell. A plurality of micro inlets are formed in the inner wall of the large diameter area of the upper portion of the cavity. A plurality of micro outlets are formed in the inner wall of the small diameter area of the lower portion of the cavity. When spraying liquid flows, pressure difference generated by the spraying liquid in the cavity drives the spraying liquid to flow in through the micro inlets and drives the ethyl alcohol to flow out through the micro outlets to be mixed with the spraying liquid in the cavity. The spraying device has the advantages of automatic sensing, automatic adjusting, automatic mixing, high sensitivity, simple structure, obvious effect, compact structure, being free of maintenance,and being convenient to manufacture.

Description

technical field [0001] The invention relates to the field of spraying, in particular to a spraying device for improving spraying uniformity. Background technique [0002] Spraying is a coating method in which spray guns or disc atomizers are dispersed into uniform and fine droplets by means of pressure or centrifugal force and applied to the surface of the object to be sprayed. After the spraying liquid passes through the spray gun, it is dispersed into tiny droplets and adsorbed on the surface to be sprayed. However, when the droplet-shaped spraying liquid evaporates, due to the fast evaporation around the droplet and the slow evaporation in the center, it drives the tiny solid spray particles inside the droplet. Moving around, the spray particles will eventually gather around the droplet, and the center will be missing, resulting in uneven spraying effect. Cause the colored object to be unattractive or fail to meet the production requirements. With the improvement of liv...

AI Technical Summary

Problems solved by technology

After the spraying liquid passes through the spray gun, it is dispersed into tiny droplets and adsorbed on the surface to be sprayed. However, when the droplet-shaped spraying liquid evaporates, due to the fast evaporation around the droplet and the slow evaporation in the center, it drives the tiny solid spray particles inside the droplet. Moving around, the spray particles will eventually gather around the droplet, and the center will be missing, resulting in uneven spraying effect

Cause colored objects to be unsightly or fail to meet production requirements

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