Wear-resistant roll shaft of injection molding machine

The utility model discloses an injection molding machine wear-resisting roll shaft which comprises a shaft body and a spiral stirring rod, threads are arranged on the left side and the right side of the shaft body, fixing rings are respectively connected to the threads on the left side and the right side in a threaded mode, a plurality of sets of limiting sliding grooves are formed in the shaft body, and wear-resisting shaft sleeves are fixedly installed on two sets of connecting shafts respectively. A plurality of sets of spiral blades are fixedly connected to the outer side of the spiral stirring rod, a sleeving cavity is formed in the middle of the spiral stirring rod, and connecting sliding blocks are fixedly connected to the periphery in the sleeving cavity; the two groups of wear-resistant shaft sleeves are respectively sleeved on the two groups of connecting shafts, at the moment, the connecting screws penetrate through the second internal thread grooves in the wear-resistant shaft sleeves and are scre