Diseño y construcción de una máquina extrusadora de plásticos para peletizar polímeros reciclados mediante el uso de microcontroladores.

Abstract

The design and construction of a plastic extruder for pelletizing recycled polymers through the use of microcontrollers was the solution proposed to solve the problem of the cessation of the production process of shipping plastic is caused by impurities in the raw material in PARTIPLAST S.A. factory of the city of Riobamba. In the present study used inductive-deductive methods, Scientific, Experimental and Comparative. The electronic design of the plastic extruder machine is constituted by the instrumentation amplifier circuit, the circuit of power stage, the circuit of the electronic valve and control system. In the development phase of the machine electronic control extruder, use the 16F877A microcontroller for programming language was used Microcode Studio, which facilitates both the LCD display and the control ON / OFF with basic programming instructions. It also allows the simulation program, which is a very useful tool to save time during construction. After the implementation of the extruder machine in the factory and the information gathered in surveys conducted by the same manager concludes that the implementation of the machine solved the problem of stopping the production process caused by the presence of impurities in the raw material used as a 94.74% decreased the rate of detention of the production process, the average length of stay and the number of plastic elements in place before leaving the assembly of the extruder machine in the factory. The implementation of the plastic extruder machine factory PARTIPLAST SA helps decrease the time of stoppage of the production process of plastic shipping minimizing economic losses for this inconvenience. The plastic extrusion machine must be connected to a mains socket, which is recommended to place breakers protection in case of a short circuit that could be caused by the high temperature of the spindle and the proximity to electrical cables.