FDM type low-melting-point alloy 3D printer spraying head system and application thereof

Abstract

Disclosed is an FDM type low-melting-point alloy 3D printer spraying head system and application thereof. A feeding device conveys a printing material prepared by a molten low-melting-point alloy preparing device to a spraying head, an extracting device conveys remaining printing materials collected by a recycling device from the spraying head to the molten low-melting-point alloy preparing device, a purifying device carries out purification treatment on harmful gas collected by the molten low-melting-point alloy preparing device and the recycling device, then the gas is exhausted, a control device provides power source and control signals for the spraying head, the molten low-melting-point alloy preparing device, the recycling device, the gas purifying device, the feeding device and the extracting device through a first power source harness, a second power source harness, a third power source harness, a fourth power source harness, a fifth power source harness, a first power source and signal harness, a second power source and signal harness, a third power source and signal harness, a fourth power source and signal harness, a fifth power source and signal harness, a sixth power source and signal harness, a seventh power source and signal harness, an eighth power source and signal harness, a ninth power source and signal harness and a tenth power source and signal harness; long-time continuous printing is supported, an automatic cooling device is arranged, waste material blockage prevention supplying, printing channel automatic cleaning capacity and the waste material recycling functions are achieved, and harmful gas generated in the printing process can be effectively treated.

Description

Technical field [0001] The invention belongs to the technical field of 3D printers, and particularly relates to an FDM type low melting point alloy 3D printer nozzle system and its application. Background technique [0002] The fused deposition modeling (Fused Deposition Modeling, FDM) manufacturing process mainly relies on the relative movement of the print nozzle and the printing platform. The molten materials are stacked on the printing platform in order according to the cross-sectional shape of the printed object, and finally the three-dimensional model is realized. Construct. [0003] The existing commercial FDM equipment mainly uses filamentary wires made of ABS, PLA, PETG, nylon, PC and other thermoplastic materials, and the printing technology is relatively mature. With the rapid development of fused deposition molding technology, fused deposition molding printing technology using low melting point metals as materials has emerged. For example, the Chinese Patent Applicati...

AI Technical Summary

Problems solved by technology

The Chinese patent application number 201620571154.0 uses the metal melting device as a part of the nozzle, which makes the nozzle larger in size and heavy in structure, which affects the printing accuracy

However, none of the above four patents specifically stated how to clean up the metal residue in the printing material channel, how to deal with the harmful gas generated during the printing process, etc.

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