Doctor blade cut-off device

The invention relates to the technical field of a doctor blade production tool, in particular to a doctor blade cut-off device. The invention discloses a doctor blade cut-off device. The doctor blade cut-off device comprises a stander, wherein the stander is provided with a soleplate, a wire inlet hole and a wire outlet hole which are used for a doctor blade to pass are formed on the soleplate, a cutter frame is arranged on the soleplate, a cutter air cylinder is arranged on the top of the cutter frame, the output end of the cutter air cylinder is connected with a cutter, and the cutter is arranged above the wire outlet hole; a sensing support is hinged with a sensing plate, 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, the rear end of the sensing plate contacts a sensor, and the sensor is connected with a jacking air cylinder and the cutter air cylinder. The doctor blade cut-off device has beneficial effects that the doctor blade can be fully automatically cut off, the doctor blade is convenient to collect, and the production efficiency can be improved.