Patent ID: 9505174
Filing Date: 2016-11-29
CPC Classification: B29C,B33Y

Claim Text:
1. A printing head module, capable of dispensing a modeling material layer by layer to form a three-dimensional (3-D) object, the printing head module comprising: a body, comprising a material-supplying channel and a nozzle, the material-supplying channel corresponding to the nozzle and forming a material-supplying path with the nozzle; a feeding roller assembly, disposed between the material-supplying channel and the nozzle, the feeding roller assembly comprising an active roller and a passive roller respectively disposed at two opposite sides of the material-supplying path; a feeding sensor, disposed at the passive roller to directly detect whether the passive roller rotates; and a control unit, coupled to the feeding roller assembly and the feeding sensor to control the active roller to drive the passive roller to rotate, so as to transmit the modeling material from the material-supplying channel to the nozzle along the material-supplying path, and the modeling material extruded out from the nozzle to form the 3-D object, and the control unit generating a notice according to a directly detecting result of the feeding sensor.