A three-dimensional model-based external coloring device

Abstract

The invention discloses a three-dimensional model coloring device. The three-dimensional model coloring device comprises movable guide rods (105, 110 and 125), a molding head (115), a coloring head (120) and a supporting platform (130). The molding head is used for extruding a material to form a single layer of a model; and the coloring head is in contact with the peripheral contour of each layer of material of the model to finish coloring. The design can be used for 3D printing and also can be used for coloring the peripheral contour of the model, so that a colored 3D printing effect is realized. The coloring disclosed by the invention is carried out along the normal direction of a contact surface, and a contact part is designed into a spherical contact head, so that a coloring contact region is stressed along the normal direction of a contour all the time. The three-dimensional model coloring device is simple in structural design, parts can be partially or wholly replaced and the cost is relatively low; and the different sizes of the coloring device can be selected according to processing requirements, so that serialization and standardization are convenient to realize. The whole size of the three-dimensional model coloring device is relatively small, so that the probability of color delaying in a coloring process can be easily lowered.

Description

technical field [0001] The invention belongs to the advanced manufacturing technology field of the manufacturing industry, and in particular relates to a three-dimensional forming and coloring device. Background technique [0002] With the continuous development of science and technology, the manufacturing industry has put forward higher requirements for the complexity and machining accuracy of parts. Traditional manufacturing technologies, such as cutting, casting, etc., have been difficult to meet the current individualized manufacturing needs. In recent years, the emergence of 3D printing (additive manufacturing) technology has undoubtedly brought new hope to the manufacturing industry. 3D printing technology can not only quickly manufacture workpieces, but for some parts, it can even provide finished or semi-finished products with sufficient precision. Because 3D printing can manufacture extremely complex parts, does not generate waste, and has low cost per piece and s...

AI Technical Summary

Problems solved by technology

[0003] However, color 3D printing has struggled

Although there are a variety of materials that can be used for 3D printing, most of the printed parts have a single color or are not rich in color, so it is difficult to achieve colorful or even full-color

Even with multi-material printing, the printed colors are very limited

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