ABSTRACT
The aim of this paper is about single screw extrusion graphical modeling, and automation. At plastic era, industrial processes of polymer shaping are becoming more and more complex, with an increasing demand in terms of safety, robustness, productivity gains and quality. This implies a new integrated automation design which is no longer limited to local regulation strategies but combines communication and systems interconnection. A programmable logic controller represents a key factor in industrial automation. It’s an industrial computer control system that continuously monitors the state of input devices and makes decisions based upon a custom program from STEP7 software, to control the state of devices connected as outputs. In fact, in order to automate, to simulate a kind of process, we must first describe the phenomena by a suitable model. The bond-graph approach is based on the decomposition of systems, into sub systems that exchange of power. This approach allows a graphical presentation from which we can deduce the mathematical models. The visualization system for both the automation levels shall be through Human Machine Interface. SIMATIC WinCC system is for Supervisory Control and Data Acquisition of the extruder.
