SU1704842A1 - Pneumatic paint sprayer - Google Patents

Abstract

The invention relates to equipment for applying on the surface of various products of a liquid dye by spraying it with a stream of compressed air. The purpose of the invention is to increase the convenience of operation and reliability. For this, the elastic tube is made with a hole diameter of 2-3 mm and a length of 150-200 mm, forming a container for the liquid, and is fixed with a free end on the spray gun body. The guide bushing is made of a non-wetting material sprayed with liquid. 1 hp f-ly, 2 ill.

Description

The invention relates to equipment for applying to the surfaces various products of a liquid dye by spraying it with a stream of compressed air.

The purpose of the invention is to increase the convenience of operation and reliability.

Figure 1 shows a spray gun, a general view: Figure 2 shows the structure of a spray gun.

A choke 2 is attached to the spray housing of the spray gun 1 (Fig. 1), to which a hose 3 for supplying compressed air is attached, an elastic tube 4 serving as a container for the dye is fixed by means of a sleeve 5 and attached to the fitting 10 of the fluid channel (Fig. 2). The air nozzle 7 and the fluid nozzle 8 of the goosna are interconnected and are connected to the housing by means of a threaded joint. The needle valve 9 is installed with the possibility of axial movement in the guide; Stupid to 11, Rzspolom. Blue coaxially air and hidkostpomu nozzles 7 and 0.

The flexible tube 4 (FIG. 1) may be a vinyl chloride or polyvinyl chloride tube, or made from another elastic material. With a hole of 2-3 mm and a length of 150-200 mm, the tube has a capacity to fill with dye in sufficient quantity to perform artistic and graphic works associated with frequent changes of dye. At the same time, due to the influence of atmospheric pressure when the liquid nozzle is closed, the dye does not spill out of the open end of the tube at any position of the spray gun.

The guide sleeve (figure 2) is made, for example, of fluoroplastic, which has the property of not wetting with a dye on an aqueous solvent. This eliminates the possibility of the dye flowing through the gap on the guide hole due to the surface tension forces of the dye liquid, which interact with non-wetting material.

In the process of operation, the spray gun tube is filled by suction of the paint.

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The body of estimates of the flow of air flow passing through the air nozzle, while at the same time ending the end of the tube directly with a bottle or other container with a dye. Zatg: The filled tube is secured in a position that is convenient for operation using sleeve G (Fig. 1). At the same time, at the moment of operation, the spray gun can be placed in any position, without fear of the spraying of the dye from the open end of the tube. The spray gun is washed by sucking the solvent through the tube and passing it through the liquid channel.

Claims (2)

Claim 1. Pneumatic paint sprayer, comprising a housing with a compressed air supply channel and an air nozzle, a needle valve placed along the axis of the housing, mounted for axial movement relative to the outlet a liquid nozzle in the guide sleeve; and a liquid channel in communication with an elastic tube for supplying a sprayed liquid, characterized in that. in order to improve ease of use and reliability, the elastic tube is made with a hole diameter of 2-3 mm and a length of 150-200 mm, forming a container for the liquid, and is fixed with a free end on the spray gun body. 2. A paint sprayer according to claim 1, characterized in that the guide sleeve is made of a material that is not wettable by a sprayed liquid. FIG. I eight gg5C4WX SST FIG. 2