A new color 3D printing spray head

Abstract

The invention discloses a novel color 3D printing spray coating nozzle and belongs to 3D printing apparatuses achieving color printing. The 3D printing spray coating nozzle includes a conical body, a plurality of pigment liquid boxes, a multi-segment piezoelectric material, and inclined-mouth tops. Through the characteristic that 3D printing can form hollow chambers, the color spray coating nozzle conical body having a novel structure is manufactured. The multi-segment piezoelectric material is provided with multi-segment selective electrification links, and meanwhile, the inclined-mouth tops having inclined cut openings are arranged on the tops of micro hollow-tube chambers, so that the basic pigment liquids sprayed from the micro hollow-tube chambers are matched to blend a color for spray coating. Through control on the length of electrified parts of the multi-segment piezoelectric material, the colors are matched more finely and accurately. Through the inclined flat tips on the top of the inclined cut openings, accurate micro-quantity extrusion of the pigment liquids is achieved, so that the 3D printer has a more accurate color spray coating effect.

Description

technical field [0001] The present invention relates to the field of 3D printing manufacturing technology, and more specifically, relates to a 3D printing device for realizing color printing. Background technique [0002] At present, 3D printers use two spraying methods when realizing color printing, one is the traditional inkjet technology, and the other is the use of simple basic color matching structure. The structure of spraying equipment using traditional inkjet technology is more complicated, the nozzles are more numerous, and the cost is higher. Using a simple basic color matching structure, although the number of nozzles is reduced, the effect is not good, and the color point accuracy is difficult to control. [0003] At present, when the traditional inkjet technology uses piezoelectric materials to squeeze and spray color liquids, it generally simply pressurizes both ends of the piezoelectric materials to control the opening and closing of the extrusion process, an...

AI Technical Summary

Problems solved by technology

The structure of spraying equipment using traditional inkjet technology is more complicated, the nozzles are more numerous, and the cost is higher

Using a simple basic color matching structure, although the nozzles are reduced, the effect is not good, and the color point accuracy is difficult to control

[0003] At present, when the traditional inkjet technology uses piezoelectric materials to squeeze and spray color liquids, it generally simply pressurizes both ends of the piezoelectric materials to control the opening and closing of the extrusion process, and the piezoelectric materials are generally set at elastic Outside the tube, the service life of the elastic tube affects the life of the entire nozzle. In addition, the top of the piezoelectric material is designed as a flat head, which cannot achieve a smaller dose of squeeze spray

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