Reciprocating type harvester cutting knife based on sesame stalk characteristics

The invention discloses a reciprocating type harvester cutting knife based on sesame stalk characteristics and relates to the technical field of sesame stalk cutting. A knife bar is arranged on a rackthrough a reciprocating mechanism; moving blades are sequentially arranged on the knife bar; each support assembly comprises a fixing part, a sharp part, a cutting part and an edge pressing part, wherein the fixing part is fixedly connected with the rack, the sharp part is located at the most front end of the cutting knife and used for guiding and collecting stalks, the cutting part is connectedwith the fixing part and the sharp part, the side surface of the cutting part is set to be in a cutting edge shape, and the edge pressing part is connected with the sharp part; the moving blades are movably arranged between the edge pressing part and the cutting parts. The reciprocating type harvester cutting knife has the benefits as follows: the cutting knife reciprocates to increase cutting force, so that the stalks are