In recent years, with the rapid development of the economy, the plastic machinery industry has also flourished. Driven by the economy, people's demand for polymer modified materials is constantly developing, and the requirements for twin screw extruder are also getting higher and higher.
Among them, co-rotating parallel twin screw extruder has received widespread attention. According to the development trend of the industry, co-rotating parallel twin screw extruder mainly develops towards high speed, large torque, large extrusion output, and low energy consumption. Now, let us explain the structural characteristics of co-rotating parallel twin screw extruder to facilitate everyone's understanding.
The previous twin co-rotating parallel twin screw extruder barrel was an integral type that cannot be opened. However, the co-rotating parallel twin screw extruder is a split type, which is composed of upper and lower half-barrels. The lower half-barrel is fixed on the frame, and the upper half-barrel is connected to the lower half-barrel through a worm reducer. The upper and lower half-barrels are tightened with two rows of bolts during normal use. When the barrel needs to be opened, just loosen the bolts and turn the handle of the worm gearbox to open the barrel easily.
The building block screw and barrel of the twin screw extruder are used. The screw and barrel of the main machine of the co-rotating parallel twin screw extruder are designed with advanced "building block" technology. The screw is composed of various forms of screw blocks fitted on the core shaft, while the inner liner inside the extruder cylinder can be adjusted according to the different screw blocks, thereby flexibly combining ideal thread component structures according to the requirements of the material species and other technological requirements. It realizes various process of material conveying, plasticizing, refining, shearing, exhaust, pressure reducing and extrusion, achieving the purpose of one machine with multiple functions and capabilities. Another advantage of the "building block" design is that for screw and barrel components that have been worn, local replacement can be carried out, avoiding the scrapping of the entire screw or barrel and greatly reducing the maintenance cost.
The main machine of the twin screw extruder offered by the professional twin screw extruder manufacturer has high-speed co-rotating meshing twin screws, which can produce very strong and complex material transfer, exchange, diversion, mixing and shear effects in various threads and compounding components. These effects can be fully and freely adjusted and controlled by changing the screw configuration and operating process conditions to meet various process requirements.
Accurate metering and reasonable feeding method of the twin screw extruder is the key to strict formula execution and product quality assurance. According to the material properties and user needs, we have equipped the extruder with various feeding methods, such as volume metering, dynamic loss weighing, etc. to meet the needs of different products.
The twin screw extruder has an advanced control system. The extruder is equipped with an advanced and beautiful control system, and most of its control components are imported with good quality and high sensitivity. The operating parameters of the main machine, such as current, voltage, temperature, torque, etc., are very intuitive, so it is very easy to operate, and the requirements for the operator are not high.
The twin screw extruder system is equipped with several pelletizing methods, such as water-cooled strand pelletizing, hot-face cutting and water cooling, and hot-face cutting and air cooling. It can be configured according to different materials and user requirements.
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