Residual sand collection and treatment system of 3D printer

Abstract

The invention relates to a residual sand collection and treatment system of a 3D printer in the technical field of sand removal of the 3D printer. The residual sand collection and treatment system of the 3D printer comprises a plurality of material receiving grooves which are arranged on a sand paving printing station and are used for collecting the scraped sand in all working boxes and a plurality of dry hand-held sand suction guns which are arranged on a sand cleaning station and used for sucking away sand in all working boxes. The residual sand collection and treatment system of the 3D printer is characterized in that a material outlet at the bottom of each material receiving groove is connected with a material sucking pipe, the material sucking pipe and the sand suction guns are respectively connected to a sand suction main pipeline through a material suction branch pipe and a sand suction branch pipe, the other end of the sand suction main pipeline is sequentially connected with a dust remover, a suction pipeline and an exhaust fan, the lower part of the dust remover is provided with a sand discharging opening, and the sand discharging opening is sequentially connected with a material collecting tank and a screening machine. According to the residual sand collection and treatment system of the 3D printer, the process of collecting and recycling the residual sand is provided for the working boxes of a plurality of printing stations through the negative pressure pneumatic conveying technology, and the problem that the residual sand and the scattered sand could not be cleaned up in time in a sand mold 3D working process and a sand cleaning station sweeping process is solved.

Description

technical field [0001] The invention relates to the technical field of sand cleaning of 3D printers, in particular to a system for collecting and processing residual sand of 3D printers. Background technique [0002] During the sand spreading and scraping process of the sand spreader of the sand mold 3D printer, the sand spreader will spread the sand and scrape the excess sand out of the work box, resulting in the accumulation of residual sand on both sides of the work box, and after the printing is completed, there will be A large amount of uncured residual sand needs to be cleaned up and recycled in time to improve the printing efficiency of the sand mold 3D printer and reduce the cost of printing sand. In the prior art, the scattered sand and the residual sand in the working box are mostly cleaned manually or each sand mold 3D printer is equipped with a sand cleaning device, and the residual sand is collected in sand bags and transported away for centralized treatment. T...

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the deficiencies in the way of scraping off residual sand and loose sand on the workpiece surface in the prior art, and provides a 3D printer residual sand collection and processing system. The working box at the station provides the process of collecting and recycling residual sand, which solves the problem that the residual sand and loose sand cannot be cleaned up in time during the sand mold 3D working process and the cleaning process of the cleaning station.

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