Full-automatic spinning machine steel collar surface size and accuracy detecting device

The invention relates to a full-automatic spinning machine steel collar surface size and accuracy detecting device. The detecting device comprises a working table and further comprises a feeding mechanism, a first detecting mechanism, a transferring mechanism, an overturning mechanism, a second detecting mechanism, a screening mechanism and a control system which are arranged on the working table; the first detecting mechanism is arranged at the discharging end of the feeding mechanism and comprises a first material disc, a rotating device, a first upper detecting camera and a linear scanning camera, the first material disc is arranged on the rotating device and is located at the discharging end of the feeding mechanism, the first upper detecting camera is located over the first material disc, and the linear scanning camera is located on one side of the first material disc; the transferring mechanism is in butt joint with the first detecting mechanism and the overturning mechanism, the overturning mechanism i