Method and equipment for spraying marking on steel pipes

Abstract

The invention discloses a steel pipe marking method and equipment. The method comprises the following steps: drying the steel pipe: drying the inner wall or the outer wall at the mouth of the steel pipe for use; painting the steel pipe: spraying the dried steel pipe on the mouth of the steel pipe Spray the paint on the inner or outer wall of the steel pipe for standby; steel pipe spray marking: when the painted steel pipe waits for a preset time and the paint is not dry, use ink to spray the inner or outer wall of the steel pipe nozzle. The ink includes the following Ratio of ingredients: cyclohexanone: 20‑30%, titanium dioxide: >10%. The equipment includes a mechanical arm, a transmission device and a marking assembly, and the transmission device is used to transmit steel pipes; the marking assembly includes a spraying head, a paint spraying head and a pneumatic water removal device, and the spraying head, a paint spraying head and a pneumatic water removal device Fixed on the mechanical arm, the pneumatic dewatering device is used to dewater the steel pipe. Adopting the above steel pipe marking method and equipment can increase the marking speed, and make the code sprayed on the steel pipe clearer and not easy to fall off.

Description

technical field [0001] The model relates to the field of label spraying, in particular to a steel pipe label spraying method and equipment. Background technique [0002] Steel pipes are widely used in various fields. When used in liquid or powder transportation such as oil transportation, gas transportation, and water supply, it is necessary to conduct a pressure test on the steel pipes produced to prevent the steel pipes from being able to withstand high pressure during use and causing danger from bursting. [0003] The steel pipe pressure test machine is used for the pressure test of the steel pipe. In the test, due to the intervention of working media such as water, hydraulic oil and emulsifier, a large amount of water will remain in the steel pipe after the pressure test is completed. At this time, the effect of spraying marks on steel pipes is not good, and it is easy to spray marks unclearly or even fail to spray. [0004] In addition, because the material of the stee...

AI Technical Summary

Problems solved by technology

[0006] For this reason, it is necessary to provide a steel pipe marking method and equipment to solve the problem of low efficiency of the existing method and equipment, and when the marking is sprayed on the steel pipe, the font is not clear and easy to fall off.

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