Spraying plant for cylinder inside surface coating

Abstract

Provided a spray device which enables the uniform and entire coating of the inner surface of a cylinder body without reducing the moving speed of a spray head.The spray device for coating the inner surface of an object W to be coated inserts the spray head of the spray device A for coating into the inside of the object to be coated, and moves the head along the shaft core of the object to be coated while rotating the cylindrical object W. The main body A1 which is equipped with a liquid supply port, an air supply port, a liquid quantity control means, or the like is connected to a tube body A2 which concentrically partitions and forms an air passage at the periphery of a liquid passage. The tip of the tube body is mounted with a head A3 for vertically flat spraying in the direction orthogonal to the shaft core of the tube body, and being integral with a nozzle and a cap.

Description

technical field [0001] The present invention relates to a spraying device for coating the inner surface of a small-diameter cylinder (object to be coated). Specifically, it relates to a spraying device that is inserted into a cylinder to rotate the cylinder, and on the other hand, moves the spraying device along the axis of the cylinder to coat the inner surface of the cylinder. . Background technique [0002] As the method of coating the inner surface of the cylinder (object to be coated), the following method is adopted: stack the cylinders in the direction of the axis, install them on the turntable, insert the nozzle of the spraying device inside the cylinder, and rotate The nozzle of the coating device is moved along the axis of the cylinder while the table is rotating, and a coating pattern is applied in a spiral shape on the inner surface of the cylinder, thereby coating the entire inner surface of the cylinder (for example, refer to Patent Document 1). . [0003] A...

AI Technical Summary

Problems solved by technology

[0007] However, if the moving speed of the nozzle is slowed down, the working time becomes longer, and there is a problem in working efficiency

[0008] Moreover, the nozzle and the shower head described in Patent Document 2 are constructed separately. Therefore, in order to assemble the nozzle on the shower head, a fastening ring (a ring such as a nut) is required. small size

[0009] Therefore, the diameter of the object to be coated that can be coated with the inner surface coating machine described in Patent Document 2 is limited, so it is desired to develop a spraying device equipped with a small-sized nozzle.

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