Anti-clamping seam type press-cutting type cut-off knife structure

The utility model relates to the field of cutting instruments, in particular to an anti-clamping seam type press-cutting type cut-off knife structure. Comprising a fixed blade, a movable blade, a fixed tool apron and a movable tool apron, an extension positioning part is arranged on one side of the movable blade, and when the movable tool apron is located at the stroke position of the side away from the fixed blade, the end of the extension positioning part exceeds the edge of the cutting edge of the fixed blade; a cutting intersection point exists at the close cutting edge edges of the movable blade and the fixed blade; the cutting edge of the movable blade and the extension positioning part are arranged on the same side of the fixed blade and exceed the cutting edge of the fixed blade at the part, close to one side of the extension positioning part, of the cutting intersection point; the edge of the cutting edge of the movable blade is located on the side, away from the extending positioning part, of the fi