Do you know what’s the hopper in IMM ?
Hopper alwalys called barrel.Like screw, it is an important part in plasticizing injection device of IMM.
The barrel is on the periphery of the screw, containing the screw, and the screw rotates in the barrel. The working environment of the barrel is the same as that of the screw. They both work in the environment of high temperature, high pressure, corrosion and greater friction.
Function of hoppers :
The hopper and screw constitute the extrusion system. The barrel is also working under high pressure, high temperature, severe wear and certain corrosion conditions. In the extrusion process, the cylinder also has the function of transferring heat to or from the material.
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The structure of hoppers
Integral barrel
It is processed on an integral blank. This kind of structure can not only ensure high manufacturing assembly accuracy, but also simplify the assembly work, convenient heating and cooling system setting and assembly and disassembly. So, this kind of cylinder requires higher processing and manufacturing conditions.
Combination barrel
It means that a barrel is composed of several barrel segments. In a certain sense, the use of composite drum is conducive to local materials and processing, is beneficial to small and medium-sized factories. But in fact, the processing precision of composite barrel is high.
