Structural Characteristics Of Twin Screw Extruder The first commercial co-directional Twin Screw Extruder was born in 1939, and the widely used building block co-directional twin-screw extruder first appeared in 1953, the ZSK series produced by Werner & Pfleiderer company. The co-direction Twin Screw Extruder Structural Characteristics is composed of extrusion system, feeding system, transmission system, heating and cooling system and control system.
Extrusion system: barrel, screw and head connector (including porous plate)
Feeding system: hopper, feeder and feeder transmission device
Transmission system: motor, reducer and thrust bearing
Heating and cooling system: heating and liquid cooling channels are provided inside the cylinder
Control system: Realize automatic control of the whole extrusion unit
The function of each part is similar to that of a single screw extruder, but the structure is much more complex than that of a single screw extruder.
Twin Screw Structural Characteristics
Extrusion process Through the combination of a variety of screw components, all the twin screw extruder have feeding, melting, mixing, exhaust, pressure building and conveying functions, to achieve material conveying, plasticizing, shear, exhaust, pressure building and extrusion and other processes. The structure and function of the co-directional twin-screw extruder are very similar to those of the single screw extruder, but there are great differences in working principle.
