Working method of steel pipe inner wall and outer wall automatic spraying machine

Abstract

The invention discloses a working method of a steel pipe inner wall and outer wall automatic spraying machine and belongs to the field of steel pipe spraying equipment. The steel pipe inner wall and outer wall automatic spraying machine comprises an inner wall spraying mechanism, an outer wall spraying mechanism, a working table and a rotating mechanism. The inner wall spraying mechanism comprisesa first spraying assembly, a second spraying assembly and a material shifting assembly. The first spraying assembly and the second spraying assembly respectively comprise an extending and feeding part and a rotary spraying part. The material shifting assemblies comprise lifting parts, material shifting boards and material shifting parts. The lifting parts are arranged at the tops of the materialshifting boards. The inner wall spraying mechanism can extend into a steel pipe and automatically perform uniform spraying operation on the inner wall of the steel pipe, so that the situation that thelocal inner wall of the steel pipe is not sprayed is avoided; and moreover, the outer wall of the steel pipe can be automatically sprayed through the outer wall spraying mechanism, so that the automation degree is high, and workers do not need to manually carry out spraying operation on 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 inner and outer walls of steel pipes. Background technique [0002] Traditional finished steel pipes are usually formed by cold rolling, and the inner and outer walls of cold rolling are generally not sprayed with paint. In construction projects, it takes about 2-3 years from the beginning to the completion. In this way, steel pipes It is easy to rust and rot outdoors in the wind, sun and rain, which greatly shortens the service life of the steel pipe. In order to improve the antirust 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 labor intensity of the way is big, brings bigger labor load for worker, and it is difficult to carry out spraying operation to the inner wall of pipeline manually. [0003] The inventio...

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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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