Machine barrel screw rod for foam molding of rubber and plastic products

The utility model relates to the technical field of machine barrel screw rods, in particular to a machine barrel screw rod for foam molding of rubber and plastic products, which comprises a first machine barrel screw rod assembly, an injection hole is arranged on the outer surface of the first machine barrel screw rod assembly, and the tail end of the first machine barrel screw rod assembly is connected with a filter assembly. The output end of the filtering assembly is connected with a connecting pipe, the end, away from the filtering assembly, of the connecting pipe is connected with a second machine barrel screw assembly, the filtering assembly comprises a supporting frame, the supporting frame is fixedly connected to the tail end of the first machine barrel screw assembly, and the two ends of the side face of the supporting frame are both fixedly connected with connecting rods. Impurities in plastic pasty melt are filtered through the filtering assembly and conveyed into the second machine barrel screw as