3D printing equipment spreading device capable of automatically sweeping

Abstract

The invention relates to the field of 3D printing spreading and particularly relates to 3D printing equipment spreading device capable of automatically sweeping. The device comprises a feeding hole, a stock bin, a spiral conveyer, a blanking hole, a scraping plate, linear guide rails, sweeping hairbrushes, gears, a toothed belt and a working box. In a printing process, the blanking hole and the scraping plate of a spreader are swept when reaching a certain number of layers or time, so that the condition that the blanking hole at the bottom of the spreader is greatly reduced, the uniformity of each blanking quantity is guaranteed, and therefore, 3D printing equipment can stably work for a long time and is relatively high in efficiency and relatively long in service life; the 3D printing equipment spreading device has important significance in the application of a 3D printing technique and the popularization of 3D equipment.

Description

technical field [0001] The invention relates to the field of 3D printing material laying, in particular to a 3D printing equipment material spreading device capable of automatic cleaning. Background technique [0002] 3DP printing is a kind of rapid prototyping technology. It is a technology based on a digital model, using bondable materials such as powdered metal or plastic, and constructing objects by layer-by-layer printing. At present, for most 3D printing equipment, it often encounters the problem that the bottom of the spreader is easy to be blocked during the long-term printing process, resulting in uneven feeding, and finally either the equipment is shut down or defective products are printed, which greatly limits The promotion and application of 3D printing technology. For example, the patent document with the publication number CN105172145A discloses a multi-knife automatic knife-changing 3D printer powder spreading scraper device, which scrapes the powder through...

AI Technical Summary

Problems solved by technology

At present, for most 3D printing equipment, it often encounters the problem that the bottom of the spreader is easy to be blocked during the long-term printing process, resulting in uneven feeding, and finally either the equipment is shut down or defective products are printed, which greatly limits The promotion and application of 3D printing technology

For example, the patent document with the publication number CN105172145A discloses a multi-knife automatic knife-changing 3D printer powder spreading scraper device, which scrapes the powder through its scraper blade to complete the powder spreading process, and does not automatically clean the bottom of the spreading material. The device, after a long time of printing, the bottom of the spreader is prone to clogging, resulting in low product quality and other problems

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