A multi-color 3D printing device

Abstract

The invention discloses a multicolor 3D (three-dimensional) printing device which comprises a spray head shell for containing printing materials. A power device is arranged on the spray head shell, astirring device for stirring and extruding the printing materials is arranged in the spray head shell, an output end of the power device is connected with the stirring device with a hollow structure,a stirring rod is arranged in the stirring device and fixed onto the inner wall of the spray head shell, a plurality of pigment supply devices are further arranged on the spray head shell and communicated with an internal space of the stirring device, a spray head one-way valve is arranged at the bottom of the spray head shell, and a plurality of heating devices for melting the printing materialsare arranged on the periphery of the spray head shell. The printing materials can be effectively mixed with pigments, redundant printing materials at the end of a spray head can be blown out of the printing device after printing is finished, and next printing effects cannot be affected.

Description

technical field [0001] The invention belongs to the technical field of 3D printing, and in particular relates to a multi-color 3D printing device. Background technique [0002] 3D printing is a new type of processing technology that is developing rapidly today, especially suitable for various personalized processing and single-piece small-batch processing. 3D printing technology is generally realized by the principle of layered printing, that is, the 3D model to be printed is decomposed into thin slices, and by controlling the plane positioning system, one thin slice is printed each time, and then the height is increased by a step, and the next thin slice is printed, and the next thin slice is printed through repeated printing. Flakes, the final 3D shape formed. [0003] Common 3D printing technologies include the following: laser sintering, laser sensitive technology, fused filament manufacturing, etc. The 3D technology of laser sintering is to melt and shape powder metal...

AI Technical Summary

Problems solved by technology

In 3D printing, only single-color printing materials can be printed under normal circumstances, especially the printing method of fusion mode, it is difficult to add color

In multi-color printing, after the printing is completed, the material printed last time is easy to remain in the nozzle, which will seriously affect the printing effect in the next printing

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