High-temperature heating device of FDM printer, printer and printing process

Abstract

The invention discloses a high-temperature heating device of a FDM printer, the printer and a printing process. The high-temperature heating device of the FDM printer comprises a first heating moduleused for heating a printing wire material to a high-elastic state from a glass state and a second heating module used for heating the printing wire material to a viscous liquid state from the high-elastic state, wherein the first heating module and the second heating module are sequentially arranged along a feeding direction; the first heating module is internally provided with a first printing wire material conveying passage used for the movement of the printing wire material; the second heating module is internally provided with a second printing wire material conveying passage used for thefurther movement of the printing wire material; one end of the first printing wire material conveying passage is connected with a printing wire material feeding device; the other end of the first printing wire material conveying passage communicates with one end of the second printing wire material conveying passage via a throat pipe; and the other end of the second printing wire material conveying passage communicates with a nozzle. The high-temperature heating device of the invention can heat the printing wire material with a high melting point and has the advantages of high printing precision and good printing effect.

Description

technical field [0001] The invention relates to a heating device, in particular to a high-temperature heating device of an FDM printer, a printer and a printing process. Background technique [0002] Fused deposition printing technology (FDM) is one of the most widely used technologies in the field of 3D printing. It uses thermoplastic printing filament as raw material. The printing filament is heated and melted by the printer to form a melt with certain fluidity. After the melt flows out of the nozzle Cooling and solidification, layer by layer superposition printing, is the manufacturing process of converting computer data into three-dimensional objects. [0003] The main component of the FDM printer is an extrusion head device that includes the functions of heating thermoplastic printing filaments and pulling and driving materials. Under the control of a computer program, the three-dimensional position of the extrusion head and the speed and volume of extrusion printing fi...

AI Technical Summary

Problems solved by technology

[0005] The first purpose of the present invention is to overcome the deficiencies of the prior art and provide a high-temperature heating device for an FDM printer, which can heat high-melting printing filaments without extrusion during the heating process Problems such as unbalanced temperature supply and irregular shrinkage of printing filament caused by excessive temperature difference between the two printing filaments before and after the head have the advantages of high printing accuracy and good printing effect

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