Finishing mill front clamping-off shearing-planing split type horn mouth easy to disassemble and replace

The utility model discloses a finishing mill front cut-off shear planing split type horn mouth easy to disassemble and replace, which comprises a finishing mill front cut-off shear, an adjustable fixing mechanism is arranged on the horn mouth, a dovetail tenon strip is arranged at the top of the horn mouth, and a dovetail groove is arranged on the bottom surface of the adjustable fixing mechanism. The end, away from a horn opening, of a fixing piece of the adjustable fixing mechanism is fixedly connected with the outer wall of the front breaking shear of the finishing mill, chucks of a dovetail groove are arranged on the bottom faces of the fixing piece and an adjusting piece respectively, a T-shaped through groove is formed in the fixing piece in a penetrating mode, the upper end and the lower end of the through groove are communicated with the side connected with the adjusting piece, and chucks are arranged at the end of a [-shaped clamping plate and the end of a lower plate of the adjusting piece. A screw