▎ 摘　　要

NOVELTY - The utility model claims an integrated nozzle throat heating assembly, applied to the printing head of the 3 D printer, comprising a throat, a nozzle, a radiating component, a heating component, the heating component comprises a heating column, a thermistor, the middle part of the heating column is provided with a through hole, two sides of the through hole are provided with a mounting hole, the inner side wall of the front surface of the heating column is provided with a thermistor mounting position, the thermistor is set in the thermistor mounting position on the inner side of the front surface of the heating column, the beneficial effects of the utility model are as follows: throat and nozzle are integrally formed, in order to reduce the current situation of plug and overflow, and has the effect of quick change, the heating sheet tightly wraps the thermistor on the outer side wall of the heating column, forming a heating component with high heating efficiency, constant temperature, small volume; graphene the heating sheet is heated, the heating column is tightly attached on the outer side wall of the heating column, and the heating column is fixed on the heating column of the heating column by the high temperature adhesive cloth, the heating rate is improved and the heating sheet is prevented from being damaged by dry burning.