Spiral upper feeding type straw bundling machine matched with harvester

The invention relates to the technical field of straw bundling machines, in particular to a harvester matched spiral upper feeding type straw bundling machine which comprises a mounting shell, a rotating motor is mounted on the outer wall of the mounting shell, and a driving shaft of the rotating motor penetrates through the mounting shell and extends into the mounting shell to be provided with a threaded rotating rod. When a fastening block is located below an overhaul groove, a positioning rod is inserted into the inner wall of a fixing block, so that the protection effect is better when a cover plate is not opened, only when the cover plate is not used, a hydraulic push rod pushes the fastening block to move, then the cover plate is opened, and the hydraulic push rod is moved to drive a pressing piston to move to the position below the overhaul groove for replacement; the cutter is mounted on the inner wall of the mounting groove, the compression piston compresses straw during use, the density of compresse