Additive manufacturing powder spreading device with flexible baffle

Abstract

The invention provides an additive manufacturing powder spreading device with a flexible baffle. The additive manufacturing powder spreading device includes a molding working table, a roller moving transmission device, a roller frame, a powder spreading roller, the flexible baffle and a flexible baffle fixing part, the flexible baffle and the flexible baffle fixing part are arranged at the two ends of the powder spreading roller correspondingly, the roller frame is mounted on the roller moving transmission device, and used for fixing the powder spreading roller; and the roller frame is fixedlyconnected with the flexible baffle fixing part, the flexible baffle and the flexible baffle fixing part are slidably connected in the direction of a plane perpendicular to the molding working table,an adjusting gasket is further arranged between the flexible baffle and the flexible baffle fixing part, and the distance between the flexible baffle and the flexible baffle fixing part is adjusted bysetting the thickness of the adjusting gasket. According to the technical scheme, powder can be effectively prevented from leaking to the outside of a molding zone in the use process.

Description

technical field [0001] The invention relates to the field of additive manufacturing, in particular to an additive manufacturing powder spreading device with a flexible baffle. Background technique [0002] Powder-based additive manufacturing technology is currently widely used additive manufacturing technology. It uses powder as raw material to directly manufacture parts by layer-by-layer powder coating and layer-by-layer scanning. It is fast and convenient. It can produce parts with complex shapes and structures that are difficult to achieve by traditional methods, which not only simplifies the processing technology, improves efficiency, but also has good mechanical properties. It is widely used in various industries such as aviation, molds, automobiles, and biomedicine. [0003] The powder spreading mechanism is one of the key components in the additive manufacturing equipment, and the quality of the powder spreading has a great influence on the quality of the molded parts...

AI Technical Summary

Problems solved by technology

The powder spreading system spreads the powder on the molding table through the mechanical movement of the roller or scraper. However, during the powder spreading process, the powder will flow to both sides of the roller or scraper, resulting in most of the powder not being covered on the molding table. Seriously reduce the efficiency and quality of powder spreading, which in turn affects the quality and performance of molded parts. The existing powder spreading devices are difficult to meet the high utilization rate of powder

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