Spraying supporting frame and a spraying device

Abstract

The invention discloses a spraying supporting frame and a spraying device and belongs to the technical field of coating spraying. The supporting frame comprises a supporting rod; a height adjusting device is arranged on the supporting rod; and a universal ball is arranged at the bottom of the supporting rod. According to the supporting frame, by arranging the universal ball, the requirement of axial constant speed walking of the supporting frame on the inner wall of a mould cavity which rotates with the constant speed is met; by arranging the height adjusting device, the requirement that a supporting pushing rod reaches the level is met; and meanwhile the supporting frame is simple in structure, can be quickly mounted at the front end of the pushing rod and prone to disassembling, and does not affect the production rhythm.

Description

technical field [0001] The invention relates to the technical field of paint spraying, in particular to the spraying of the inner wall of a mold cavity of a horizontal centrifuge. Background technique [0002] Before using a horizontal centrifuge for centrifugal casting, it is necessary to spray a layer of coating on the inner wall of the mold cavity. The existing technology is to put the spray gun on the head of the push rod and extend the spray gun to the mold cavity by the push rod. The other end of the interior is then sprayed during the process of pulling the push rod back; during the process, the front end of the push rod naturally droops due to gravity, and with the retraction of the push rod, the head of the drooping push rod gradually returns to the required height, so that During the spraying process, the spray gun forms a process from low to high during the movement of the inner wall of the mold cavity, which makes the coating on the inner wall of the mold cavity ...

AI Technical Summary

Problems solved by technology

[0002] Before using a horizontal centrifuge for centrifugal casting, it is necessary to spray a layer of coating on the inner wall of the mold cavity. The existing technology is to put the spray gun on the head of the push rod and extend the spray gun to the mold cavity by the push rod. The other end of the interior is then sprayed during the process of pulling the push rod back; during the process, the front end of the push rod naturally droops due to gravity, and with the retraction of the push rod, the head of the drooping push rod gradually returns to the required height, so that During the spraying process, the spray gun forms a process from low to high during the movement of the inner wall of the mold cavity, which makes the coating on the inner wall of the mold cavity uneven and affects the quality of the cast high-precision centrifugal tube blank

[0003] In the Chinese Utility Model Patent (Application No. 201420572994.X), a height-adjustable pipeline inner wall spraying equipment is disclosed. The spraying pipe is supported by a height adjustment device. The walking device, its application range is the spraying operation in which the pipeline to be sprayed does not rotate by itself, and the walking device travels along the axial direction of the pipeline; if the spraying operation is carried out while the pipeline to be sprayed rotates at a constant speed, this device cannot be applied, because in In a pipeline that rotates at a constant speed, the walking device is prone to shift under the drive of the inner wall of the pipeline, so the spraying distance of the spray gun is always changing, and the uniformity of spraying cannot be guaranteed

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