SU1523178A1 - Pneumatic paint sprayer - Google Patents

Abstract

The invention relates to devices for spraying and applying liquids on the surfaces of products and can be used for pneumatic spraying of paint when doing painting work. The aim of the invention is to reduce the labor intensity when replacing or repairing spray heads and an air valve. For this, the casing is made with bores communicating with the paint and air supply channels, and the spray heads and the air valve are made in the form of removable blocks installed in the bores of the casing with the possibility of combining their channels with the paint and air supply channels. 2 Il.

Description

The invention relates to a device for spraying and applying liquids on the surface of products and can be used for pneumatic spraying of paint when doing painting work.

The aim of the invention is to reduce the labor intensity when replacing or repairing spray heads and an air valve.

FIG. 1 shows a pneumatic paint sprayer; in fig. 2 is a section A-A in FIG. one.

The paint sprayer comprises a housing 1, spray heads 2, an air valve 3 and a pressure lever 4. In housing 1, bores 5 and 6 are made and channels 7 and 8 communicated with them respectively of the paint i supply air.

The spray heads 2 are made in the form of separate removable blocks, each of which includes a housing 9 with channels 10 and 11 installed in

There is a material nozzle 12 with a spring-loaded locking needle 13 and an epiploon. 14 and cover the {4th material nozzle 12. With an annular gap the air head 15. The spray heads 2 are installed in the bores 5 of the housing 1 with the possibility of combining the channels 10 and 11 with the channels 7 and 8. The air valve 3 is designed as a separate removable unit including the body with channels 1b and 17 made in it, a valve installed in it with a spring-loaded stem and gland.

The air valve 3 is installed in the bore in the housing 1 with the possibility of combining its channels with the air supply channel 8. The pressure lever 4 is mounted on the housing 1 with the ability to interact with the locking needles of the 13 spray heads 2 and the stem of the air valve 3.

, one

Paint sprayer works as follows. .

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Pressing the lever acts on the spring-loaded rod of the air valve and opens air access to the air head 15 of the spray head 2. At the same time, the lever k acts on the locking needles 13 and, when they are axially displaced, opens the feed of 1 slider from channel 7 to material nozzles 12. At the exit the material nozzles mix paint with the air coming out of the air heads; 15, and the formation of spray cones that are directed onto the surface to be painted. After the dyeing process has been completed, when the lever is lowered, the ink supply first closes, and then the air inlet.

If it is necessary to repair spray heads or an air valve, they are removed from the housing and replaced with spare units.

The implementation of the spray heads and the air valve in the form of separate removable units simplifies the process of their repair and replacement, which improves the performance of the spray gun,

reduces labor intensity and simplifies maintenance.

Claims (1)

Claims. A pneumatic paint sprayer comprising a body with paint and air supply channels, spray heads that include a material nozzle, an air head and a locking needle, an air {{{}} valve with a spring-loaded stem and a pressure lever mounted on the body with the ability to interact with a locking needle spray heads and an air valve stem, characterized in that, in order to reduce the labor intensity when replacing or repairing the spray heads and the air valve, the housing is with the borings connected to the paint and air supply channels, and the spray heads and the air valve are made in the form of removable blocks installed in the housing bores with the possibility of combining their channels with the paint and air supply channels. 15 YU f3 //