Powder feeding system

Abstract

The invention provides a powder feeding system, comprising: a powder feeder, a vacuum adsorption device and a spray welding gun are arranged from top to bottom. The powder feeder is equipped with a powder storage cylinder, funnel seat, and roller feeding device from top to bottom; through the transparent and visible structure of the powder storage cylinder, the situation of powder feeding can be intuitively perceived, and it has the function of non-stop feeding; a glass cylinder is installed in the funnel seat , increasing the visualization function of the powder conveying flow process, which is helpful for the observation and control of the adjustment of the powder feeding amount during machine debugging, as well as the stability observation and anti-blocking observation of the powder feeding amount during normal operation; the vacuum adsorption device can effectively avoid Alloy powder bonding, blockage of conveying pipes and unsmooth powder feeding, etc., so as to achieve the requirements of continuous, uniform and stable powder feeding. The invention is especially suitable for the horizontal long-arm spray welding gun operation and the working environment where the spray welding gun protrudes into the inside of the workpiece and is not conducive to observation, and the working air pressure is 0.1-0.5 Map.

Description

technical field [0001] The invention relates to the fields of thermal spraying, plasma cladding and 3D printing, and specifically relates to a visual carrier-type roller powder feeder and a powder feeding system. Background technique [0002] The powder feeder is an indispensable device for storing alloy powder and delivering metal powder to the spray gun according to the corresponding process requirements in thermal spraying or spray welding equipment. According to different powder feeding methods, the existing powder feeding devices are mainly divided into screw type, scraper type, drum type and other structural forms. Different thermal spraying or spray welding processes have different requirements on the powder feeder, but whether the powder can be delivered accurately, stably, and evenly is the standard for inspecting the performance of various powder feeders. The quality of the sprayed or welded layer plays a very important role. [0003] Commonly used plasma spray w...

AI Technical Summary

Problems solved by technology

[0005] Disadvantages of the existing powder feeder and its powder feeding system: the powder feeder and its powder feeding system are easy to block; the structure of the non-stop feeding device is complicated; the machine cannot intuitively perceive the adjustment of the powder feeding amount during powder feeding debugging, and the normal operation Observation of the stability of powder feeding flow, anti-clogging observation, etc.

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