3D printer extrusion structure

The utility model discloses a 3D printer extrusion structure, including the bottom plate and install at the last locating piece on bottom plate upper portion, install the heating piece in the bottom plate lower part, the nozzle is installed to the heating piece, goes up to be provided with wire feed rolls and leading wheel between locating piece and the heating piece, has the clearance that the filiform consumptive material of confession passes through between wire feed rolls and the leading wheel, go up the locating piece and be provided with the silk hole, be somebody's turn to do the central line in silk hole and the central line of nozzle and coincide, cross the downthehole fiber tube of installing of silk. Adopt above -mentioned structure the utility model discloses can effectively extrude flexible material, realize that the soft or hard material is compatible. 本实用新型公开了种3D打印机挤出结构，包括底板以及安装在底板上部的上定位块、安装在底板下部的加热块，加热块安装有喷嘴，上定位块与加热块之间设置有送丝轮与导向轮，送丝轮与导向轮之间具有供丝状耗材通过的间隙；上定位块设置有过丝孔，该过丝孔的中心线与喷嘴的中心线重合，过丝孔内安装有上过丝管。采用