Mobile phone shell bar code pasting machine capable of automatically replacing label roll

The utility model discloses a mobile phone shell bar code pasting machine capable of automatically replacing a label roll, and relates to the technical field of mobile phone assembly, the mobile phone shell bar code pasting machine comprises a transverse moving mechanism and a longitudinal moving mechanism, the upper end of the transverse moving mechanism is connected with the longitudinal moving mechanism in a clamped mode, and the upper end of the longitudinal moving mechanism is connected with a lifting mechanism in a clamped mode. A bar code pasting mechanism is fixedly mounted on one side of the lifting mechanism; the transverse moving mechanism comprises a transverse fixing frame, a transverse sliding rail is fixedly connected to the upper surface of the transverse fixing frame, and transverse limiting plugs are fixedly connected to the two ends of the transverse sliding rail; the longitudinal moving mechanism comprises a longitudinal sliding frame, a longitudinal sliding rail is fixedly connected to th