A Nozzle Structure of Wire Drawing Prevention for 3D Printing Fused Deposition Manufacturing
2020
The working principle of 3D printing fused deposition Manufacturing is introduced. The reasons for the problems of nozzle material flow and product wire drawing in the process of product printing are pointed out. The structure of traditional nozzle is analyzed, and a new structure of nozzle is proposed. The main feature of the new nozzle structure is that it can generate negative pressure in the closed space when the wire is withdrawn, thus it can effectively prevent the nozzle flow and product drawing. At the same time, by optimizing the heat dissipation system of the new nozzle structure, the stability of the nozzle printing process can be improved. The practical application shows that this new nozzle structure is effective and worth popularizing.
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