The invention discloses a
powder spreading device, and relates to the technical field of additive manufacturing. The
powder spreading device comprises a scraper frame, a
drive motor, a flexible scraper and a coupler. The flexible scraper comprises a scraper core and a scraper sleeve; the scraper core is of a cylinder structure; the scraper sleeve is of a
hollow cylinder structure; the scraper coreis sleeved with the scraper sleeve; the flexible scraper and the
drive motor are installed on the scraper frame; and a rotary shaft of the
drive motor is connected with one end of the flexible scraper through the coupler. The drive motor is connected with the flexible scraper. after the part of the flexible scraper is abraded, the drive motor can drive the flexible scraper to be rotated by any angle, the
contact position of the flexible scraper and
powder is adjusted again, the part, not abraded, of the flexible scraper makes contact with the powder, the flexible scraper can be continue to beused, the
utilization rate of the scraper is improved, the drive motor controls the position of the scraper, a cabin door does not need to be opened, formed parts are not oxidized, and the printing quality is ensured.