Material rolling mechanism and feeding device of laser pipe cutting machine

The invention discloses a material rolling mechanism and a feeding device of a laser pipe cutting machine. The material rolling mechanism comprises a material supporting assembly, a driving assembly and a controller. The material supporting assembly comprises a material supporting belt, a rack, a first installation pillar and a second installation pillar. The driving assembly comprises a rotatingshaft, a roller and a first driving motor. One end of the rotating shaft is provided with a detection mechanism which is used for detecting whether a material supporting belt is in a straightly tightened state or not. The detection mechanism comprises a first screw rod, a first screw rod sliding seat, a first installation plate, two position sensors and an induction baffle used in cooperation withthe position sensor. The controller controls the first driving motor to work through position information of the position sensor so that the material supporting belt can be prevented from being tightened to be broken. The fee