The extruder and the screen changer have a close relationship in the field of plastic processing, which is mainly reflected in the following aspects: I. Functional Collaboration Extruder: An extruder is a mechanical device that relies on pressure and shear force to mold fully plasticized and uniformly mixed materials through a die head. It is widely used in industries such as plastics, rubber, synthetic fibers, etc., for producing products of various shapes and specifications. Screen Changer: A