Slitter edge shear for temper mill

The utility model discloses a slitter edge shear for a temper mill. The slitter edge shear comprises a rack, a lower tool rest, a frame, a hydraulic cylinder, an upper tool rest and a pressing mechanism, wherein the lower tool rest and the frame are arranged on the rack; the hydraulic cylinder is arranged on the frame; the upper tool rest is connected with the hydraulic cylinder; the pressing mechanism is fixedly arranged on the upper tool rest and is used for pressing a slitter edge wire following the lifting of the tool rest; the pressing mechanism comprises a plurality of fixing brackets and pressing plates which are arranged under the fixing brackets; the fixing brackets are respectively fixed at the front end of the upper tool rest; and the pressing plates are jointed and arranged under the fixing brackets. The degree of freedom for sliding back and forth after the slitter edge wire is extruded is limited by the pressing mechanism, so that a shearing position of the slitter edge wire is kept unchanged du