Automatic spraying machine for steel pipe

Abstract

The invention discloses an automatic spraying machine for a steel pipe. The automatic spraying machine comprises a workbench, wherein a conveying mechanism and an in-pipe spraying mechanism are arranged at the two ends of the top of the workbench correspondingly; the conveying mechanism comprises a first sliding rail fixed to the top of the workbench, a bearing plate is arranged above the first sliding rail, and a sliding block matched with the first sliding rail is arranged at the bottom of the bearing plate; a first threaded rod and a first motor are further arranged at the top of the workbench, the bottom of the bearing plate is in threaded connection with the first threaded rod, and the first threaded rod is connected with the output end of the first motor; and a clamping rotating mechanism is arranged above the conveying mechanism, an out-pipe spraying mechanism is arranged above the in-pipe spraying mechanism, the steel pipe is clamped on the clamping rotating mechanism, and theclamping rotating mechanism is connected with the in-pipe spraying mechanism. According to the automatic spraying machine, the overall structure is arranged, so that the inner wall and the outer wallof the steel pipe can be automatically and uniformly sprayed, and the rust prevention capacity of the steel pipe can be improved; and meanwhile, the workload is greatly saved, the production cost is reduced, and the production efficiency is improved.

Description

technical field [0001] The invention relates to a spraying machine, in particular to an automatic spraying machine for 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. In addition, due to the long length of the steel pipe, some existing steel pipe spraying equ...

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Problems solved by technology

[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 method is labor-intensive, which brings a large amount of labor to the workers, and it is difficult to manually spray the inner wall of the pipeline.

In addition, due to the long length of the steel pipe, some existing steel pipe spraying equipment on the market cannot spray the entire inner wall of the steel pipe, requiring workers to manually turn around and spray the steel pipe, which brings extra labor to the workers. Moreover, There is no device to drive the steel pipe to rotate, so that the inner wall of the steel pipe is partially unpainted, resulting in the problem of uneven spraying on the inner wall of the steel pipe

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