Three-dimensional printer with automatic clearing function

Abstract

The invention provides a three-dimensional printer with an automatic clearing function. The three-dimensional printer comprises a base, a support frame, a print sprayer, a third driving mechanism, a fourth driving mechanism, a material storage box, a feeding pipe, a feeding device, an air blower and a controller, wherein the print sprayer is driven by the third driving mechanism and the fourth driving mechanism to respectively move in a transverse direction and a longitudinal direction; the first end of the feeding pipe is connected with the print sprayer, the second end of the feeding pipe is communicated with the material storage box, a vent valve is arranged on the material storage box, the feeding device comprises a material pushing plate and a cylinder, the material pushing plate is positioned in the material storage box, and the cylinder is connected with the material pushing plate; and a first air supply pipe is connected to the air blower, an air supply connecting part is arranged at the end part, far from the air blower, of the first air supply pipe, the air supply connecting part is fixed to the support frame through a connecting rod, and a heating device is connected to the position, close to the air blower, of the first air supply pipe. The three-dimensional printer can automatically clear material residues in the print sprayer and the feeding pipe, so that the print work is more smooth.

Description

technical field [0001] The invention relates to the technical field of three-dimensional printing rapid prototyping, in particular to a three-dimensional printer with an automatic cleaning function. Background technique [0002] 3D printing is a rapid prototyping technology, that is, based on digital model files, using powdered metal or plastic and other bondable materials to construct objects by layer-by-layer printing. [0003] During the printing process, the printing nozzle moves back and forth continuously for printing. In order to reduce the burden on the driving mechanism and the vibration of the equipment during operation, the material in the molten state is not directly melted at the printing nozzle, and the molten material is stored separately and passed through the feeding hose. Connect the print head to the storage tank. [0004] There are some problems with this setting: when the printing equipment is not used for a long time, the molten material will easily re...

AI Technical Summary

Problems solved by technology

[0004] There are some problems with this setting: when the printing equipment is not used for a long time, the molten material will easily remain in the printing nozzle and the feeding hose, which will not only affect the effect of the next printing, but also cause the printing nozzle and feeding hose to be damaged. Therefore, it is urgent to design a 3D printing device that can automatically clean the material residue in the printing nozzle and the feeding hose

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