APPARATUS FOR MANUFACTURING FILAMENTS FOR FUSED DEPOSITION MODELING, FILAMENTS INCLUDED WIRE FOR FUSED DEPOSITION MODELING AND THREE-DIMENSIONAL PRINTER USING THE SAME

摘要

The present invention relates to an apparatus for manufacturing a filament for fused deposition modeling (FDM), a filament for FDM impregnated with a wire, and a three-dimensional printer using the same. The apparatus for manufacturing a filament for FDM comprises: a hopper for supplying a solid thermoplastic polymer; a chamber having an inner space into which the thermoplastic polymer is injected, whose rear end portion is connected to the hopper, and which includes a heating means arranged by surrounding the external surface of a front end portion thereof, and heats and melts the thermoplastic polymer injected into the inner space; an ejection unit which is connected to the end of the front end portion of the chamber, and impregnates the molten thermoplastic polymer with a wire to cure the thermoplastic polymer while discharging the same; and a wire fitting unit which inserts a wire into the ejection unit according to the discharge rate of the molten thermoplastic polymer from the ejection unit. According to the present invention, when manufacturing a three-dimensional structure with the three-dimensional printer, the thermal durability and strength are further enhanced through the filament for FDM impregnated with a reinforcing wire, thereby enabling the production of a fine structure.