Side-moving spraying mechanism and spraying method for inner coating of anti-corrosion steel pipe

Abstract

The invention discloses a side shifting type spraying mechanism and method for an internal coating of an anticorrosion steel pipe, aiming at overcoming the defect that the whole length of an existing spraying mechanism is too long. According to the technical scheme, the side shifting type spraying mechanism comprises an internal spray rod capable of making straight line movement along a parallel axis, a spray gun component at the front end of the internal spray rod, a support component at the rear end of the internal spray rod, and a first shifting device enabling the internal spray rod to make lateral movement towards the axis on a precoating station parallel to the axis, wherein the first shifting device comprises a side shifting component and a driving component for driving the side shifting component; the support component is connected with the side shifting component; the driving component enables the side shifting component to control the internal spray rod to alternate in a reciprocating way between the position deviating from the axis and the position coincided with the axis; the side shifting component comprises at least one adjusting rod. The mechanism and the method have the advantages that the effect of saving the space along the length direction is achieved, the utilization rate of a factory is improved, the working process of a worker is reduced, and the operation is conveniently carried out.

Description

technical field [0001] The invention relates to the field of steel pipe processing, in particular to a side-moving spraying mechanism and a spraying method for an inner coating of an anti-corrosion steel pipe. Background technique [0002] In order to enable the steel pipe to effectively block corrosive substances, the inner and outer walls of the steel pipe are usually subjected to anti-corrosion treatment to improve its corrosion resistance, thereby prolonging the service life of the steel pipe and making it better used in marine engineering, oil transportation engineering and other fields. . [0003] The existing anti-corrosion steel pipe spraying device is provided end to end along a parallel axis with an initial station for storing the inner spraying rod, a pre-coating station with a transmission mechanism, and a spraying station including a heating device and a powder spraying room. The Chinese utility model patent with the authorized announcement number CN203091210U ...

AI Technical Summary

Problems solved by technology

When the spraying rod of this device enters and exits the pre-coating station from the initial station, it needs to translate forward and backward along the direction of the production line. These two stations are connected to each other, resulting in an overall length that is too long and occupies a large area, making the plant utilization rate low. The production cost is high, especially when processing long-length steel pipes (such as 30-50 meters), the floor area is larger, the space utilization rate is lower, and it is very inconvenient for workers to operate back and forth between the work stations.

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