Spray gun for spraying painting at narrow slit

Abstract

A spray guy used for spraying paint on a slit belongs to the technology field of blast atomizer, which is used for overcoming the difficulty in paint-spraying on the slit. The spray guy consists of a paint cylinder and a handle. The upper part of the paint cylinder is provided with a painting nozzle and an air nozzle. Particularly, the spray guy is provided with an additional compressed air connecting pipe and an additional paint outlet pipe. The compressed air connecting pipe is communicated with the nozzle. The paint outlet pipe is communicated with the painting nozzle. The compressed air connecting pipe and the paint outlet pipe are extensional flexible pipes, the end positions of which correspond to each other. The compressed air nozzle and the compressed painting nozzle are respectively provided with an additional pipe that has some rigidity and produces plastic deformation easily. When the invention is used, the terminal parts of two pipes can be placed into the slit to spray the paint on the slit of an object. So the slit can be painted evenly. The invention has simple structure and is easy to be implemented. Trial results show that the invention has a good spray-paint effect and overcoming the difficulty in spraying the paint on the slit.

Description

technical field [0001] The invention relates to a spray gun, which is particularly suitable for spraying paint at slits, and belongs to the technical field of atomizing spray devices. Background technique [0002] At present, spray guns are often used for painting the surface of objects, which is a fast and convenient operation method. The working principle of the spray gun is powered by manual or motorized way, relying on compressed air to generate negative pressure at the paint nozzle, sucking out the paint in the paint tube, blowing it into a mist spray at the compressed air nozzle, and the mist paint is dispersed Attach to the surface of the object to be sprayed to form a uniform coating film. In spraying construction, the most widely used is the mouth-to-mouth spray gun, and its structure is shown in Figure 2. The mouth-to-mouth spray gun is easy to operate, especially when spraying a large area of ​​flat surface, the work efficiency is high, but for a small range of ...

AI Technical Summary

Problems solved by technology

The mouth-to-mouth spray gun is easy to operate, especially when spraying a large area of ​​flat surface, the work efficiency is high, but for a small range of motion, or when the part that needs to be sprayed is narrow and long, the use of the mouth-to-mouth spray gun is limited. The sprayed paint mist cannot be concentrated into these narrow parts, which affects the painting operation

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