Induction heater and 3D printing machine extruder

Abstract

The invention relates to the technical field of printing devices, discloses an induction heater and a 3D printing machine extruder, and solves problem that an existing 3D printing machine extruder only can be used for printing materials having low melting points and can not be used for printing crystals which do not have definite melting points, and metal having relatively high melting points. The extruder comprises a feeding mechanism and the induction heater; the feeding mechanism is arranged above the induction heater; the induction heater mainly comprises a heat insulation hood, an induction coil, an eddy current induction heating block and a printing nozzle; the heat insulation hood comprises an upper bottom wall and a periphery wall in a connection manner and has an opened lower end and a hollow inside; the induction coil is arranged at the outer surface of the periphery wall; the eddy current induction heating block is arranged in the heat insulation hood; the printing nozzle is connected with the lower end of the heat insulation hood; the eddy current induction heating block is internally provided with a through hole penetrating through the whole the eddy current induction heating block; the lower end of the through hole is communicated with the nozzle; the upper end of the nozzle is communicated with a passing hole formed in the upper bottom wall. The induction heater and the 3D printing machine extruder can be used for achieving the printing of plastics such as ABS can be achieved, and also achieving the printing work of glass and metal, can meet application in multiple fields and have outstanding advantages.

Description

technical field [0001] The invention relates to the technical field of printing equipment, in particular to an induction heater and a 3D printer extruder. Background technique [0002] 3D printing is a kind of rapid prototyping technology. It is a technology based on digital model files and using bondable materials such as powdered metal or plastic to construct objects by layer-by-layer printing. It is often used to make models in the fields of mold manufacturing and industrial design, and is gradually used in the direct manufacture of some products. There are already parts printed using this technology. [0003] The most important technologies in 3D printing technology are: Fused Deposition Modeling (Fused Deposition Modeling, FDM), Selective Laser Sintering (Selective Laser Sintering, SLS), Stereolithography Apparatus (SLA). [0004] Fused deposition process (FDM), which heats and melts the filamentary hot-melt material, extrudes the material through an extruder with a fi...

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide an induction heater for the problems existing in the prior art, which solves the problem that the heater of a traditional 3D printer can only melt materials with a low melting point

[0007] The present invention also provides a 3D printer extruder, which solves the problem that a 3D printer extruder based on FDM technology in the past can only extrude materials with low melting points such as ABS plastics and PAL plastics, and cannot print materials with non-fixed melting points such as glass. Problems with crystals and metals with higher melting points

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