Adjustable wave node yarn spreading rod

The utility model relates to an adjustable wave node yarn spreading rod, and belongs to the field of composite fiber material manufacturing equipment. The center supporting rod is a long shaft with a boss, holes matched with the shape of the section of the center supporting rod are formed in the centers of the drum-shaped yarn spreading section and the adjusting threaded block, the drum-shaped yarn spreading section and the adjusting threaded block are installed on the outer side of the center supporting rod and can slide in the axial direction of the center supporting rod, the middle of the drum-shaped yarn spreading section is drum-shaped, and the two ends of the drum-shaped yarn spreading section are cylindrical adjustable sections. Adjusting threads are arranged at the two ends of the drum-shaped yarn spreading section, two sections of threads in opposite directions are arranged on the outer side of the adjusting thread block, the shape of the inner side of the yarn blocking plate is matched with the boun