Sensing device of doctor-bar cut-off device

The utility model belongs to the technical field of a tool for producing a doctor bar, and particularly relates to a sensing device of a doctor-bar cut-off device. The sensing device comprises a stander, wherein the stander is provided with a soleplate, a wire inlet hole and a wire outlet hole are formed in the soleplate, two baffle plates are arranged on one side of the wire outlet hole on the stander, a sensing support is arranged in front of the two baffle plates on the stander in a sliding manner, and the sensing support is provided with a sensing plate in a hinge manner, the sensing plate is in an L shape, the front end of the sensing plate is perpendicularly intersected with an extension line of the wire outlet hole, and the rear end of the sensing plate contacts a sensor. The sensing device has beneficial effects that the length of the doctor bar can be precisely positioned, the doctor bar is more accurately cut off, and the sensing device can be used for cutting off the doctor bars in different lengths.