Cigarette lacking detection equipment for cigarette factory

The utility model discloses a piece of carton missing detection equipment for a cigarette factory, which comprises a main support arm, a hydraulic cylinder is arranged at the top end of the main support arm, a hydraulic rod is arranged at the bottom end of the hydraulic cylinder, a clamping carrier plate is connected to the outer side of the hydraulic rod in a sliding manner, and a clamping device is arranged at the top end of the clamping carrier plate; a clamping device is arranged at the top end of a clamping carrying plate, when a cigarette box at the top end of a detection conveying line moves to the position under the clamping carrying plate, a clamping motor in the clamping device is started, the clamping motor drives a screw with the two fixedly-connected driving ends to start to rotate, the screw drives a clamping plate with the outer side in threaded connection to start to relatively move, and the cigarette box is detected to be conveyed to the conveying line. The cigarette box can be clamped and fi