Label detector

The utility model relates to the technical field of label detection, in particular to a label detector which comprises a working table, a transmission device is arranged on one side of the working table, a detection device is arranged on the other side of the working table, the detection device comprises a shell, a screw rod, a first motor, a sliding block, a transverse plate and a detector body, the shell is installed on the upper surface of the working table through bolts, and the first motor is installed on the shell. A vertically arranged screw rod is installed in the shell through a bearing, the screw rod is in threaded connection with a sliding block, the end, extending to the outer side of the shell, of the sliding block is fixedly connected with a transverse plate, and a detector body is installed on the bottom side of the transverse plate through a bolt. The detector body can conveniently detect the transmitted label, and the detection efficiency of the label is ensured; the automatic conveying conve