A color mixing 3D printer nozzle and printing method

A technology of 3D printers and nozzles, applied in 3D object support structures, metal processing equipment, manufacturing tools, etc., can solve the problems of uneven color mixing of materials, easy blockage of color mixing nozzles, etc., and achieve the effect of sufficient materials, low cost and simple process

CN107053658BActive Publication Date: 2019-05-03HANGZHOU DIANZI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2019-05-03

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Abstract

The invention designs a color-mixing printing spray-head, and provides a color-mixing printing scheme of a 3D printer single spray-head. The color-mixing spray-head is a three-in-one-out printing spray-head. Materials with different colors are supplied by three feeding pipes correspondingly, and melt and are mixed in a three-level mixing chamber under the influence of a heating pipe, and all kinds of different colors can be modulated according to the principle of three-primary colors of raw materials. The spray-head communicates with the three-level mixing chamber, and raw material fluid mixed evenly is extruded from the spray-head under the influence of the pressure of an extruder. According to the color-mixing 3D printer spray-head and the printing method, the problem that an existing single spray-head can only print one kind of color is solved, and any mixed colors can be printed theoretically.
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Description

technical field

[0001] The invention relates to the technical field of 3D printers, in particular to a color-mixing 3D printer nozzle and a printing method. Background technique

[0002] There are two definitions of 3D printing, narrowly refers to "the powder-based manufacturing technology developed by MIT". In a broad sense, it refers to all additive manufacturing technologies (Additive Manufacturing). At present, the printing principles of 3D printers mainly include the following categories:

[0003] 1. Based on polymer polymerization reaction as the basic principle: Stereolithography (SLA), Polymer Jetting, Digital Lighting Processing, Micro Stereolithography.

[0004] 2. Based on sintering and melting as the basic principle: Selective Laser Sintering (Selective Laser Sintering, SLS), Selective Laser Melting (SLM), Electron Beam Melting (EBM), Fused Deposition Modeling Technology (Fused Deposition Modeling, FDM).

[0005] 3. The basic principle of powder-adhesive: thr...

Examples

Embodiment Construction

[0014] The present invention will be further described below in conjunction with accompanying drawing.

[0015] refer to figure 1 and figure 2 , the color mixing nozzle of the fused deposition type color 3D printer of the present invention includes the three primary color filaments 1, the three primary color filaments 1 are inserted into the feed port 2, the fixing device 3 is fixed on the printer frame, and there are screw holes around the fixing device 3 for installation Cooling fan, the lower part is connected to the cooling device 4, each cooling device is wrapped with a throat 5, the throat is connected to the heating block 7, a temperature sensor 6 is installed in the middle of the heating block, used to detect and control temperature changes, the cooling device It is a fan-shaped heat dissipation mechanism with ups and downs, which is assembled outside the throat to absorb and dissipate its heat. It is an improved heat dissipation device for specific applications of ...