Knife bending machine

The invention provides a knife bending machine. The knife bending machine comprises a frame, a conveying mechanism, a pre-cutting mechanism, a knife bending mechanism and a shearing mechanism, whereinthe conveying mechanism is arranged on the frame; the pre-cutting mechanism, the knife bending mechanism and the shearing mechanism are sequentially arranged on the frame along the conveying mechanism; the pre-cutting mechanism is used for cutting along a thickness direction of a knife strip, so that the knife strip forms a notch part and a reserved connection part; the knife bending mechanism comprises a bending seat and a second power assembly; the power assembly is used for driving the bending seat to rotate, so that a first knife clamping gap is driven to bend the knife strip; the shearing mechanism comprises a shearing cutter and a telescopic assembly; after the telescopic assembly drives a shearing cutter to extend to the knife strip, the shearing cutter shears the reserved connection part, so that the knif