The structure of the double screw extrusion sheet machine and classification

by:Mengxing     2020-06-07
Double screw extrusion sheet machine consists of driving device, feeding device, feeding tube and screw, etc, the role of all parts and the single screw extruder. Single screw extrusion sheet machine and double screw extrusion sheet machine difference is that the double screw extrusion sheet machine has two parallel screw cylinder is placed in the same material. Double screw extrusion sheet machine form, there are many, the main difference is that a different screw structure. Double screw extrusion sheet machine screw structure is more complex than single screw extrusion sheet machine, it is because of the twin screw extruder screw is rotating, mesh, and other functions. These are often used in PVC sheet twin-screw extruder machine tight mesh and differential rotation of the screw. A few use of rotating screw extrusion, but usually can only be used for low speed control. High-speed meshing direction rotating twin screw extrusion sheet machine is generally used in mixing, granulation exhaust or used as a continuous chemical reactor, the largest extruder screw speed range in 300 ~ 600 r/min. The mesh sheet extrusion machine and the principle of mesh sheet extrusion machine has the very big difference, the meshing mechanism of sheet extrusion machine and single screw extruder is more similar.
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