Automatic derusting and painting device for inner wall of steel tube

Abstract

An automatic derusting and painting device for the inner wall of a steel tube comprises two brackets, wherein an air source pipeline and a consumable pipeline are arranged between the two brackets, the air source pipeline is connected into a rotary drive device which provides rotation power for a rotary spray head, the consumable pipeline communicates with the rotary spray head, an air source portis formed in one end of the air source pipeline, a consumable pipeline port is formed in one end of the consumable pipeline, guide wheels are arranged on the outer side edge of each bracket, and a spray port of the rotary spray head points to the inner wall of the steel tube. Compared with the prior art, shot is sprayed to the inner wall of an upright column of a cantilever crane for shot blasting of the inner wall, painting operation is performed on the inner wall after shot blasting, the problem of corrosion of the inner wall of the steel tube upright column of the cantilever crane is solved, surface smoothness is improved, and product quality is guaranteed. The brackets provided with the guide wheels are arranged on the derusting and painting device to serve as support between the device and the inner wall and can be adjusted, and derusting and painting requirements of inner walls of upright columns with different specifications are met.

Description

technical field [0001] The invention relates to an automatic derusting and painting device for the inner wall of a steel pipe. Background technique [0002] At present, the cantilever crane is the company's characteristic product, and its sales continue to grow. As an important structural part of the cantilever crane, the column is made of seamless steel pipe, and the inner wall is easy to rust. Because of its long and narrow inner wall space, existing equipment cannot derust it. The column is not a closed space, without treatment, long-term use will lead to increased corrosion and affect product quality. In order to solve the corrosion problem of the inner wall of the column, improve the quality of the cantilever crane, and win by quality. Combined with production equipment and workpiece models, an automatic derusting and painting device for the entire length of the inner wall of the steel pipe has been developed to improve the smoothness of the inner wall of the column ...

AI Technical Summary

Problems solved by technology

Because of the narrow and long inner wall space, existing equipment cannot derust it

The column is not a closed space, without treatment, long-term use will lead to increased corrosion and affect product quality

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