Working method of automatic spraying machine for inner and outer walls of steel pipe

Abstract

The invention discloses a working method of an automatic spraying machine for inner and outer walls of steel pipes, belonging to the field of steel pipe spraying equipment. The automatic spraying machine for inner and outer walls of steel pipes includes an inner wall spraying mechanism, an outer wall spraying mechanism, a workbench and a rotating mechanism. The inner wall spraying mechanism includes There are a first spraying assembly, a second spraying assembly and a material transfer assembly, the first spraying assembly and the second spraying assembly both include stretching feeding parts and rotating spraying parts, and the material moving assembly includes a lifting part, a material moving plate and a material moving part , the lifting parts are set on the top of the moving plate. The invention can extend into the inside of the steel pipe through the inner wall spraying mechanism and automatically spray the inner wall of the steel pipe uniformly, avoiding the situation that the inner wall of the steel pipe is not sprayed locally, and can automatically spray the outer wall of the steel pipe through the outer wall spraying mechanism. High, no need for workers to manually spray the outer wall of the steel pipe.

Description

technical field [0001] The invention relates to the field of steel pipe spraying equipment, in particular to a working method of an automatic spraying machine for the inner and outer walls of a steel pipe. Background technique [0002] The traditional finished steel pipe forming is generally formed by cold rolling, and the cold-rolled inner and outer walls after forming are generally not painted In outdoor wind, sun and rain, it is easy to rust the candle, which greatly shortens the service life of the steel pipe. In order to improve the anti-rust ability of the steel pipe, the current method is to manually spray the inner and outer walls of the steel pipe. The traditional manual spraying The method is labor-intensive, bringing a large amount of labor to the workers, and it is difficult to manually spray the inner wall of the pipeline. [0003] The invention patent with the patent number of CN103008155B discloses an automatic paint spraying device for the inner wall of a we...

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Problems solved by technology

[0005] The purpose of the present invention is to provide an automatic spraying machine for the inner and outer walls of steel pipes to solve the technical problems in the prior art that it is difficult to spray the entire inner wall of the steel pipe and the inner wall of the steel pipe cannot be uniformly sprayed

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