In recent years, with the continuous development of polymer modified materials, the requirements for mixing equipment are getting higher and higher. At present, according to the development trend at home and abroad, the parallel twin-screw extruders are mainly developed for high speed, high torque, large extrusion volume and low energy consumption. The split-type parallel-parallel twin-screw extruder can quickly open the barrel for high-speed and high-torque extruders for material cleaning.
The remarkable feature of the parallel parallel twin-screw extruder is that the barrel can be split at the same time, and the screw and the inner liner of the barrel can be combined at will.
1. Split machine barrel. The conventional co-rotating twin-screw extruder barrels were monolithic and could not be opened. The split-type parallel-parallel twin-screw extruder is a split type, which consists of upper and lower halves, the lower half of the barrel is fixed on the frame, and the upper half of the barrel is connected to the lower half of the barrel by a worm reducer. . Usually, the upper half barrel and the lower half barrel are bolted with two rows of bolts. When the barrel needs to be opened, just loosen the bolt and turn the handle of the worm wheel box to open the barrel.
2, building block screw and barrel. The screw and barrel of the split-type parallel-parallel twin-screw extruder mainframe adopt advanced "building block" design. The screw is composed of various types of screw blocks set on the mandrel. The inner lining of the cylinder body The sleeve can be adjusted according to the different kinds of the screw block, so that the ideal thread element structure can be flexibly combined according to the material requirements such as the material variety, and the material conveying, plasticizing, refining, shearing, exhausting, building pressure and extrusion can be realized. The process of the process can better solve the contradiction between the so-called screw versatility and speciality which is generally difficult to achieve, and achieve the purpose of multi-purpose and multi-function.
