Automatic cleaning device of spray nozzle

Abstract

The invention discloses an automatic cleaning device of a spray nozzle. The automatic cleaning device is characterized in that a cleaning ring and solvent supply devices are additionally arranged on the outside of the spray nozzle of a spray gun, electromagnetic valves are arranged among the solvent supply devices and the cleaning ring, the solvent supply devices are connected with the cleaning ring by pipelines, and the electromagnetic valves are used for stopping solvent supply; solvent inlets are formed in the cleaning ring, an inner conical ring is arranged at the lower end of the inner wall of the cleaning ring, internal threads are arranged at the upper end of the inner wall of the cleaning ring, an outer cone is arranged at the lower end of the spray nozzle, a boss is arranged at the upper end of the spray nozzle, the cleaning ring compresses the boss of the spray nozzle to fix the boss of the spray nozzle, and the spray nozzle is fixed onto a glue nozzle by the aid of the cleaning ring; an outlet channel is communicated with a glue cavity, threads are arranged on an outer circle of the glue nozzle, the cleaning ring is connected with the glue nozzle in a threaded manner, and the glue nozzle is fixed to a shell by the aid of the threads. The automatic cleaning device has the advantages that when flowing into the annular channel from the solvent inlets, solvents are sprayed out of the annular channel under the effect of pressure, and sprayed solvents are aligned with the outer surface of a sphere at the lower end of the spray nozzle and clean the outer surface of the sphere, so that the purpose of automatically cleaning the spray nozzle can be achieved; the automatic cleaning device is applicable to automatically cleaning spray nozzles in spray guns in the paint spraying, glue spraying and glue coating industries and the like.

Description

technical field [0001] The invention relates to an automatic cleaning device for nozzles, and relates to the technical field in which nozzles for spraying paint, glue and glue need to be cleaned automatically. Background technique [0002] At present, the spray guns used in the painting industry, glue spraying industry, and gluing industry lack a device that can automatically clean spray gun nozzles, glue spraying nozzles, and gluing nozzles. After spraying paint, spraying glue, and gluing, the spray gun can only be disassembled, and the parts and nozzles of the spray gun can be cleaned manually; Evaporation, splashing or chemical accumulation, when the paint or adhesive solidifies too fast, some semi-solidified matter can be left on the edge of the nozzle of the spray gun, blocking the exit channel of the nozzle, and if it is not cleaned up in time, it will seriously affect the spraying of paint or glue or glue The effect will affect the product quality, so that the spray ...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the lack of an automatic cleaning device for the existing spray gun nozzles, glue spray nozzles, and gluing nozzles, the nozzles can only be disassembled and cleaned manually, especially when intermittently spraying paint, glue spraying, and gluing. Objects, blocking the outlet channel of the nozzle, and not cleaning up in time will affect the effect of spraying paint or glue or gluing. The invention provides an automatic nozzle cleaning device, which uses a cleaning ring to connect with the nozzle. The outer wall of the cleaning ring is provided with a solvent inlet. The lower end is equipped with an outer ring cone, and the outer ring cone and the inner cone of the cleaning ring form an annular channel, and a solvent outlet is formed at the end of the annular channel. When the solvent enters the annular channel from the solvent inlet, the solvent will The solvent is sprayed out from the annular channel, and the solvent is aimed at the outer surface of the ball at the lower end of the nozzle to clean, so as to achieve the purpose of automatic cleaning

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