Coloring device for 3D (Three Dimensional) printing model

Abstract

The invention discloses a coloring device for a 3D (Three Dimensional) printing model. The coloring device comprises a mixing device, a moving device, a spraying device and a drying device, wherein the mixing device comprises a pigment box and a guide pipe; one side face of the pigment box is connected with the top of the moving device; the pigment box is provided with a plurality of pigment regions; outlet ends of the pigment regions are connected with a mixing cavity; a motor is arranged in the mixing cavity; a rotary shaft of the motor is fixedly provided with a stirrer; the lower end of the mixing cavity is connected with one end of the guide pipe; the other end of the guide pipe is connected with the spraying device; spraying nozzles, which are uniformly distributed, are arranged at the lower end of the spraying device; a fixed rod is arranged at one side of the outer part of the spraying device; the spraying device is connected with the outer side of the bottom of the moving device through the fixed rod; the outer side of the spraying device is connected with the drying device; an air outlet of the drying device is aligned to the spraying nozzles. According to the coloring device disclosed by the invention, pigments are uniformly mixed in the mixing cavity through the stirring of the stirrer and a blended color has uniform color and luster; the pigments which are uniformly blended are sprayed on the 3D model through the spraying nozzles which are uniformly distributed on the spraying device, so that the 3D model is uniformly colored.

Description

Technical field [0001] The present invention relates to a 3D printer, in particular to a coloring device for 3D printing models. Background technique [0002] Three-dimensional printing, which is a kind of rapid prototyping technology, is a technology that uses powdered metal or plastic and other bondable materials to construct objects by printing layer by layer based on digital model files. In the past, it was often used in mold manufacturing, industrial design and other fields to make models, and it is now gradually being used in the direct manufacturing of some products. In particular, some high-value applications already have parts printed using this technology. "Three-dimensional printing" means the popularization of this technology. Three-dimensional printing is usually realized by using digital technology material printers. The output and sales of this printer have been greatly increased since the 21st century, and its price has been declining year by year. [0003] 3D p...

AI Technical Summary

Problems solved by technology

[0006] The present invention solves the problem that most of the coloring in the prior art is done by hand-painting. In the process of hand-painting, the coloring speed is slow, the workload is heavy, and fast coloring cannot be realized. Some also propose a mixing and mixing device based on three primary colors. The mixing of the three primary colors has the problem of uneven toning, impure modulated color, and uneven coloring. A coloring device for 3D printing models is provided, which can avoid coloring of 3D models due to hand-painted coloring. The problem of low efficiency, while avoiding some coloring methods based on the mixing of three primary colors, because the pigments are not mixed uniformly, resulting in the color of the modulation is not pure, and the coloring effect is rough

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