Automatic needle tubing cutting machine

The invention provides an automatic needle tubing cutting machine. The automatic needle tubing cutting machine comprises a machine frame, an alignment device, a traction device, a feeding device, a cutting device, an unloading device and a pre-storing disc, a working table, a power input main shaft and a transmission mechanism are arranged on the machine fame, the feeding device and the cutting device are arranged on the working table, and the power input main shaft drives the transmission mechanism to work. The cutting device comprises a knife rest, a motor and a rotary knife head, the motordrives the knife rest to rotate, the knife rest is provided with a knife head swinging rod, a thrust inclined block and a knife head installation groove, and the rotary knife head is installed on theknife rest. The rotary knife head comprises a pre-cutting knife head and a chamfering knife head, the pre-cutting knife head is a sharp knife head, the chamfering knife head is a dull knife head withthe knife head cross sectio