Three-dimensional printer and working method thereof

Abstract

The invention provides a three-dimensional printer and working method thereof. The three-dimensional printer comprises a printing platform, a toner paving mechanism, an infrared source and an image forming control mechanism, wherein, the printing platform is used for bearing a three-dimensional object, the toner paving mechanism is used for paving printing material on the printing platform, the infrared source is used for emitting infrared light beam to outside, the image forming control mechanism is position between the infrared source ans the printing platform and is used for controlling the shape of the section of three-dimensional object, the image forming control mechanism comprises a transparent film and an anti-infrared material paving device, a photic zone and a light-proof zone are arranged on the transparent film, the shape of the photic zone is same as the shape of the section of the three-dimensional object, the light beam emitted from the infrared source pass through thephotic zone and radiates the printing material on the printing platform, the anti-infrared material paving device is used for making the anti-infrared material pave on the light-proof zone. The three-dimensional printer provided by the invention can improve printing speed and printing precision.

Description

technical field [0001] The invention relates to the field of three-dimensional printing, in particular to a three-dimensional printer and a printing method of the three-dimensional printer. Background technique [0002] A three-dimensional printer is a device that uses rapid prototyping technology to print three-dimensional objects. It is based on a digital model and uses materials such as plastic, liquid photosensitive resin, or powdered metal to print three-dimensional objects layer by layer. The existing 3D printing process is firstly modeled by computer-aided design (CAD) or computer animation modeling software, and then the built 3D model is "divided" into layer-by-layer sections, and then the processing path is obtained according to the analysis section information, so that Instructs the printer to print layer by layer. According to different working principles, the rapid prototyping technologies used include melt extrusion molding (Fused Deposition Modeling, FDM), la...

AI Technical Summary

Problems solved by technology

[0003] The existing laser selective sintering molding is to solidify the printing material by laser. This laser printing method usually prints one layer line by line, and then prints the second layer. The printing speed is low and the printing accuracy is low.

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