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FDM type 3D printing spraying nozzle and FDM type 3D printing method capable of achieving gradual color changing

A technology of 3D printing and nozzle, applied in the field of 3D printing, can solve the problem of not being not, and achieve the effect of vivid color, convenient operation and simple structure

Inactive Publication Date: 2017-03-29
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

None of these technologies are true 3D full-color printing

Method used

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  • FDM type 3D printing spraying nozzle and FDM type 3D printing method capable of achieving gradual color changing

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Experimental program
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Effect test

Embodiment 1

[0022] An FDM type 3D printing nozzle capable of realizing gradient colors, comprising a mixing and melting chamber 9, the lower end of the mixing and melting chamber 9 is provided with a nozzle 2, and the upper end of the mixing and melting chamber 9 is provided with a raw material feeding port 3, and the mixing and melting chamber 9 is provided with a raw material feeding port 3. The upper end of the chamber 9 is also evenly spaced with a number of colored masterbrush feed inlets that communicate with the inner cavity of the mixing and melting chamber 9, and the mixing and melting chamber 9 is provided with an extrusion screw for extruding the material from the nozzle 2. 2. The upper end of the extruding screw 2 is provided with a connecting device for connecting the screw motor, and the connecting device is a threaded connecting device, which is connected with the motor shaft through thread fit.

[0023] Specifically, the several colored mother wire material feed ports inclu...

Embodiment 2

[0026] A printing method using a nozzle as described, comprising the steps of:

[0027] 1) The color recognition system uses slicing software to slice and layer the 3D model and obtain the position information and color information of each layer. The color information is stored in the model database corresponding to the slicing information in 24-bit RGB codes;

[0028] 2) Use the RGB code data to drive the motors of each color masterbatch feeding device to rotate, take each color masterbatch in proportion and send it to the mixing and melting chamber (9) through the feeding port of each colored masterbatch wire, and pass through the raw material feeding port 3 The input raw materials are mixed, melted and toned to form printing filaments;

[0029] 3) Extrude the printing filament according to the data information of model slicing and color picking, control the X, Y, Z motors to drive the printing nozzle to move to the corresponding position according to the position informatio...

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Abstract

The present invention discloses a FDM type 3D printing spraying nozzle capable of achieving gradual color changing. The FDM type 3D printing spraying nozzle comprises a mixing melting chamber, wherein a spraying nozzle is arranged on the lower end of the mixing melting chamber, the upper end of the mixing melting chamber is provided with a raw material inlet and is further uniformly provided with a plurality of colored color master batch wire inlets for communicating the cavity of the mixing melting chamber at intervals, an extrusion screw rod for extruding a material from the spraying nozzle is arranged in the mixing melting chamber, and the upper end of the extrusion screw rod is provided with a connection device for connecting a screw rod motor. The invention further discloses a FDM type 3D printing method capable of achieving gradual color changing. According to the present invention, with the printing method, the real full-color printing can be achieved, wherein the free color matching for the model can be achieved by matching the position information and the color information and timely melting the color master batches according to the ratio, the advantages of one-time molding, simple structure, convenient operation and color fidelity are provided, and the real full-color 3D printing can be achieved.

Description

technical field [0001] The invention relates to the field of 3D printing, in particular to an FDM type 3D printing nozzle capable of realizing gradient colors and a method thereof. [0002] technical background [0003] At present, 3D printing as a new technology has been gradually recognized by the market, but as its application becomes more and more extensive, its limitations are gradually exposed. There is no real full-color 3D printing on the market, so for the printing of color models It seems powerless. There are two types of color printing technologies available on the market: one is primary color printing followed by post-processing such as painting; the other is multi-nozzle printing in stages. None of these technologies are true 3D full-color printing. [0004] The printing proposed by the invention can realize true full-color printing, and can realize random color matching for models by melting the color masterbatch in time and in proportion, and one-time molding...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C64/209B29C64/112B33Y30/00B33Y10/00
Inventor 陈松茂赵云峰王雨浓简昱颖左梦迪
Owner SOUTH CHINA UNIV OF TECH
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