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How does a plastic extruder work?
In plastic extrusion molding equipment, the plastic extruder is usually called the main machine, and the supporting follow-up equipment plastic extrusion molding machine is called the auxiliary machine. After more than 100 years of development, plastic extruders have evolved from the original single screw into twin-screw, multi-screw, and even screw-less models. The plastic extruder (host) can be used with various plastic forming auxiliary machines such as pipes, films, handfuls of materials, monofilaments, flat filaments, packing belts, squeeze nets, plates (sheets), special profiles, granulation, cable coating, etc. Match to form various plastic extrusion molding production lines to produce various plastic products.
1 Answers
23-12-22
The plastic is plasticized and compacted in the barrel, and flows into the machine head forming mold through the porous filter plate along a certain flow channel through the machine head and neck. The mold core and mold sleeve are properly matched to form an annular gap with a continuously decreasing cross-section, so that the plastic melt can A continuous and dense tubular coating is formed around the core wire. In order to ensure that the plastic flow channel in the machine head is reasonable and eliminate the dead corners where plastic accumulates, a shunt sleeve is often installed. In order to eliminate pressure fluctuations during plastic extrusion, a pressure equalizing ring is also installed.
