Pre-fusion 3D printer spray head

Abstract

The invention discloses a pre-fusion 3D printer spray head. The pre-fusion 3D printer spray head comprises a printer spray head body, a driving device and a driving transverse rod; the printer spray head body is fixedly connected to the middle of the lower end of the driving device, the driving device is connected to the driving transverse rod in a sleeving mode, and the left end and the right end of the driving device are each provided with a UFP adsorption device; a homogenous material feeding pipe and a mixed material pre-fusion feeding pipe are connected to the upper end of the printer spray head body; the mixed material pre-fusion feeding pipe comprises a Y-shaped feeding pipe, a micromotor, a material mixing rotating wheel, a heat insulating layer and a heating section; and the lower end of the Y-shaped feeding pipe is provided with the heat insulating layer, and the lower end of the heat insulating layer is provided with the heating section. According to a 3D printer, two different materials can be subjected to pre-fusion mixing by arranging the structure of the mixed material pre-fusion feeding pipe, the number of kinds of printing materials is increased, the material performance is improved, more possibilities and higher practicability are provided for 3D printing, and the pre-fusion 3D printer spray head is suitable for being widely popularized.

Description

technical field [0001] The invention relates to the technical field of 3D printing, in particular to a nozzle of a pre-fused 3D printer. Background technique [0002] 3D printing technology, also known as additive manufacturing technology, can quickly manufacture various structurally complex parts based on 3D models. It has the advantages of short product development cycle and low research and development costs. 3D printing technology has developed rapidly in recent years. It has been widely used in various industries and can almost directly shape parts with any complex geometry. 3D printing is not a difficult task. Technology. The difference between it and ordinary printing lies in the printing materials. 14 basic materials can be used and 107 materials can be mixed and matched on this basis. The mixing and matching of two materials and coloring are already a reality. Pre-melting treatment, and the existing 3D printers often do not have this function, which brings great i...

AI Technical Summary

Problems solved by technology

The difference between it and ordinary printing lies in the printing materials. 14 basic materials can be used and 107 materials can be mixed and matched on this basis. The mixing and matching of two materials and coloring are already a reality. Pre-melting treatment, and the existing 3D printers often do not have this function, which brings great inconvenience to the actual use. In addition, the 3D printer will release a large amount of toxic ultrafine particles (UFP) during use. PLA Polymer printing at low temperature can release 20 billion particles at least per minute, and printing with other materials at high temperature can release as many as 200 billion particles per minute. Safety poses a greater hidden danger

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