Scraper device used in process of selective laser melting

Abstract

The invention discloses a scraper device used in a process of selective laser melting, and relates to the field of selective laser melting equipment. The scraper device comprises a track, the upper end of the inner side of the track is provided with an upper rack, the lower end of the inner side of the track is provided with a lower rack, and a motor is arranged behind the track; an output shaft of the motor is connected with a circular rotating disc, the outer wall of half the circumference of the rotating disc is provided with clamping teeth, and the clamping teeth are connected with the upper rack or the lower rack in an engaged mode; the left side and the right side of the lower end face of the track are correspondingly provided with a left scraper plate and a right scraper plate, theright side of the left scraper plate is provided with a left driving motor, an output shaft of the left driving motor is connected with a left shovel blade, and the right side wall of the left scraperplate is provided with a left powder bin; and the right side of the right scraper plate is provided with a right driving motor, an output shaft of the right driving motor is connected with a right shovel blade, the left side wall of the right scraper plate is provided with a right powder bin, the bottom surfaces of the left powder bin and the right powder bin are inclined surfaces, and the inclined surfaces are connected with the side walls of the left powder bin and the right powder bin through chamfering fillet surfaces. The scraper device improves the using efficiency of powder.

Description

technical field [0001] The invention relates to the field of laser selective melting equipment, in particular to a scraper device in the process of laser selective melting. Background technique [0002] Because in the laser selective melting process, every time the powder spreading device spreads the powder, it needs to transport the metal powder once. Usually, the laser selective melting equipment performs the powder feeding action through the powder feeding cylinder. After feeding the powder from the powder feeding cylinder, during the powder spreading process of the powder spreading device, a lot of powder will enter the recovery tank before entering the forming area, resulting in a decrease in the utilization rate of the powder, and the scraper is in the process of scraping the powder in order to ensure the laying. The powder is on a horizontal plane, and the length of the powder needs to be extended. Each time the molding needs to prepare metal powder that is many time...

AI Technical Summary

Problems solved by technology

After feeding the powder from the powder feeding cylinder, during the powder spreading process of the powder spreading device, a lot of powder will enter the recovery tank before entering the forming area, resulting in a decrease in the utilization rate of the powder, and the scraper is in the process of scraping the powder in order to ensure the laying. The powder is on a horizontal plane, and the length of the powder needs to be extended. Each time the molding needs to prepare metal powder that is many times larger than the volume of the workpiece, the follow-up recycling work is very troublesome, resulting in a waste of man-hours

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