Bent knife die

The utility model relates to the technical field of knife bending equipment, in particular to a knife bending die which comprises a knife bending inner die and a knife bending outer die movably matched with one side of the knife bending inner die, the knife bending inner die is provided with a knife hole allowing a knife material to penetrate through, and the inner surface of the knife bending outer die is attached to the outer curved surface of the knife bending inner die; the bent knife outer die is provided with a bending hole and a cutting hole which can be communicated with the knife hole. The machete outer die is movably matched with one side of the machete inner die, compared with a cylindrical machete outer die wrapping the machete inner die in the prior art, more production cost and replacement cost of the machete outer die are saved, and due to the fact that the machete outer die is a wearing part, frequent replacement is inevitably caused by long-term use. According to the design, the cost of the b