Melt-solid dual-phase 3D printer

Abstract

The invention discloses a melt-solid double-phase 3D printer. The melt-solid double-phase 3D printer comprises a computer, a three-dimensional moving device, a printing platform, a control panel and aprinting mechanism. A double-nozzle printing manner with a melt nozzle and a solid particle feeding nozzle is used, so that the solid particles conveyed by the solid particle feeding nozzle can accurately fall on a path of the melt sprayed by the melt nozzle; after the solid particles fall on the melt which remains under high temperature, the solid particles and the melt are in melting connectionwith each other through a high-temperature melting surface and are cured and formed after the solid particles and the melt are cooled; melt layers and solid layers are circularly stacked layer by layer in a reciprocating manner according to a mode which is similar to a wall building mode. When the melt-solid bidirectional printing 3D printer prints a layer, a melt layer and a solid layer which are combined with each other are simultaneously printed, so that the 3D printing and forming time is greatly reduced; the high-efficiency formation is achieved; the phenomenon of the molten collapse caused when the sprayed melt falls onto the uncooled path due to slow cooling speed of the melt is avoided; the solid particles fall onto the melt path, so that the temperature of the melt can be obviously reduced, and the collapse can be avoided.

Description

technical field [0001] The invention relates to the field of 3D printing, in particular to a melt-solid two-phase 3D printer. Background technique [0002] A 3D printer, also known as a three-dimensional printer, is a machine that applies rapid prototyping technology. It is based on a digital model file and uses bondable materials such as powdered metal or plastic to construct objects by layer-by-layer printing. equipment. In the past, it was often used to make models in the fields of mold manufacturing and industrial design, and now it is gradually being used in the direct manufacturing of some products, which means that this technology is becoming popular. At this stage, 3D printers are used to manufacture products. Put data and raw materials into the 3D printer, and the machine will build the product layer by layer according to the program. [0003] Fused deposition 3D printing (FDM) is a commonly used 3D printing technology. However, this technology has the following d...

AI Technical Summary

Problems solved by technology

[0003] Fused deposition 3D printing (FDM) is a commonly used 3D printing technology. However, this technology has the following defects: (1) The plastic material is melted by extruding wires from the driving wheel, and it needs to be printed layer by layer. , which limits the printing speed

(2) If the cooling rate of the material is slow, it will cause the problem of local collapse, so the range of materials used is greatly reduced

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