Supplementary coating device for metal tank welding lug

Abstract

The invention relates to a supplementary coating device for a metal tank welding lug. The device comprises an elastic bottle body, a connecting piece and a cover, wherein the connecting piece is arranged on the upper part of the elastic bottle body; the cover is arranged on the upper part of the connecting piece; a flow guide hole is formed in the connecting piece; and a coating material hole is formed on the upper peripheral wall of the cover; the flow guide hole is communicated with the coating material hole; and the coating material hole is covered by a shielding member which is made of a material of fibrous tissue. Through the device, the problem of low supplementary coating speed of manual coating is solved, the supplementary coating amount can be more easily controlled in a supplementary coating process, and the difficulty of a subsequent drying step is reduced; meanwhile, the phenomenon that a dirty product occurs is effectively controlled, so the product quality is effectivelyimproved.

Description

technical field [0001] The invention relates to the field of spray coating of metal cans, in particular to a re-coating device for welding lugs of metal cans. Background technique [0002] At present, in order to prevent rusting of solder joints, recoating of relevant solutions is carried out at the welding lugs of metal cans. Most of the existing repainting methods are manual repainting with a brush, and the efficiency is very low; at the same time, the amount of repainting for each welding ear is highly subjective, and the amount of each repainting cannot be well grasped All the same; in addition, it is not easy to control the time when drying, and sometimes the brush is too much solution, and the capacity causes the solution to flow and dirty the metal can. Therefore, the existing repainting generally has the following disadvantages (1), labor and time-consuming, and low production efficiency; [0003] (2) The product quality cannot be guaranteed to the greatest extent;...

AI Technical Summary

Problems solved by technology

Most of the existing repainting methods are manual repainting with a brush, and the efficiency is very low; at the same time, the amount of repainting for each welding ear is highly subjective, and the amount of each repainting cannot be well grasped All the same; in addition, it is not easy to control the time when drying, and sometimes the brush is too much solution, and the capacity causes the solution to flow and dirty the metal can

Therefore, the existing repainting generally has the following disadvantages (1), labor and time-consuming, and low production efficiency;

[0003] (2) The product quality cannot be guaranteed to the greatest extent;

[0004] (3) Poor control during operation

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