1results about How to "Promote plasticization" patented technology

The utility model relates to the technical field of extruder screws, and discloses a machine barrel screw structure for an extruder, which comprises a first machine barrel, a second machine barrel and a third machine barrel are sequentially arranged on the left side of the first machine barrel, and screws are arranged in the first machine barrel, the second machine barrel and the third machine barrel. By arranging the large-outer-diameter feeding section and the outer-diameter transition section, the extruder can adapt to more types of materials, especially fluffy materials and plastic materials in different shapes, so that the feeding stability and plasticizing uniformity of the materials are improved; the outer diameter of the screw rod is gradually changed, so that materials are compressed and mixed in different sections of the screw rod to different degrees, the plasticizing and mixing effects of the materials are optimized, and the high quality of a final product is ensured; through the segmented design of the machine barrel, the later maintenance convenience is improved, the replacement and cleaning of the screw rod and the machine barrel part are simpler and more convenient, and meanwhile, the maintenance cost is effectively controlled through the segmented structure of the machine barrel.