A pulsed powder feeder for laser cladding with a rotating powder tank scraper

Abstract

The invention provides a laser cladding pulsed powder feeder with a rotating powder tank scraper blade. The laser cladding pulsed powder feeder comprises a work bench, a plurality of work bench stand bars, a power storage bin, a turntable, a scraper blade, a powder feeding tube, a turntable shaft, a turntable drive motor, a scraper blade drive cylinder, a cylinder mounting rack, a powder storage bin fixing rack and a plurality of turntable rolling components, wherein four radial powder storage tanks are arranged at the outer side of a center circle of the turntable; two adjacent powder storage tanks are communicated through an arc tank; the end face of an outlet of the power storage bin is flush with the upper surface of the turntable, and higher than the bottom surface of each power storage tank; the cross section of the scraper blade forms an arc shape; the position of the powder feeding tube corresponds to the tail end of the scraper blade for linear movement. The powder in the laser cladding pulsed powder feeder falls off from the power storage bin, and is accumulated on the powder storage tanks of the turntable; the scraper blade moves in a straight line; the powder is scraped into the powder feeding tube from the turntable, and is discharged out due to gravity action. Control on the powder feeding rate can be conveniently achieved by adjusting the rotating speed of the turntable and the displacement of the scraper blade, so as to achieve pulsed powder feeding.

Description

technical field [0001] The invention belongs to the field of laser cladding, in particular to a laser cladding pulse type powder feeder with a rotating powder tank scraper. Background technique [0002] Laser cladding technology has important application prospects in industrial applications and scientific research. As one of the important technologies of laser surface treatment, laser cladding technology can obtain high-performance surfaces on low-cost substrates, which can save a lot of precious and Rare metal materials reduce energy consumption. The design and development of the powder feeder is one of the key technologies of laser cladding equipment, and the performance of the powder feeder is directly related to the quality of the laser cladding layer. [0003] Powder feeders in the prior art are generally continuous powder feeders, such as the document "Design of Laser Cladding Swing Needle Scraper Type Synchronous Powder Feeder" (Author: Qin Lanyun, Yang Guang, Wang W...

AI Technical Summary

Problems solved by technology

But there are the following deficiencies: 1. The powder hopper and the powder feeding pipe must be vertically distributed, so that the powder feeding channel is fixed and the powder feeding position cannot be changed; 2. The structure is too compact, and the electromagnetic valve and piston structure adopted are not easy to assemble and disassemble. , it is difficult to thoroughly clean the powder feeding device when powder is blocked or changed; 3. The working life of the solenoid valve is limited, which makes the reliability of the powder feeding device not high

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