The invention relates to the technical field of production of plastic granules, and discloses an
extrusion forming device for production of the plastic granules. The
extrusion forming device comprisesan
extrusion cylinder and a cooling cylinder, the cooling cylinder is fixed to the right side of the extrusion cylinder, and an extrusion structure and a cooling structure are arranged in the extrusion cylinder and the cooling cylinder. The extrusion structure comprises a driving motor, a rotary rod, an
auger,
electric heating pipes, a scraping slot, an extension rod and a scraper, wherein the rotary rod is transversely and rotationally installed in the extrusion cylinder through a first bearing, the
auger fixedly surrounds the outer ring of the rotary rod through
welding, the
electric heating pipes are fixedly embedded into the inner wall and the outer wall of the extrusion cylinder, and the
electric heating pipes is arranged around the inside of the outer wall of the extrusion cylinder.By fixedly
welding three mesh plates to the lower side in the cooling cylinder, and arranging fans above the cooling cylinder to blow air into the cooling cylinder,
agglomerate plastic granules can be broken up under the action of through holes of the mesh plates, the plastic granules can be cooled by the fan through blowing, and the plastic granules can be well prevented from being caked.