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Title: Diseño e implementación de un sistema de monitoreo y control automático para una máquina empacadora de aceite vegetal para la Empresa EPASEM
Authors: Bastidas Villacrés, Juan Carlos
Advisor: Inga Ortega, Esteban Mauricio
Issue Date: Jul-2009
Abstract: EPACEM S.A. es una empresa rentable de cultivo, extracción, refinamiento y comercialización de oleaginosas y productos de limpieza. La Características de las Oleínas de EPACEM S.A. permiten su comercialización directa para climas templados y cálidos, como aceite líquido comestible al 100%, su gran resistencia a la oxidación le da mayor durabilidad y menor consumo, la Estearina en su estado natural no requiere de procesos adicionales para ser el principal ingrediente para la producción de grasas industriales, margarinas industriales y margarina de mesa. En 1973 se crea una sociedad de cultivadores de palma africana, con lo que se conforma la empresa EPACEM, en 1985 se inicia la operación de la refinería y envasado de productos terminados, la producción de empacado se la realizaba de manera manual.
Description: In these times with a world with greater demands and global markets, is looking at the need to optimize resources, improve product quality and increase production volume, that is why the trend of production companies, refiners, etc.. are modernizing and automating production processes. The company EPACEM S.A. dedicated to the production of refined olein, has been the need to increase production, bringing a new production line of vegetable oil in sleeves with a new ¼ liter. The machine that was implemented on a production line that was designed under the criteria of quality, reliability and economy, which serves to drag the sleeves of a roll, which gives way to spend that are sideways and are ready to receivers in the liquid inside the sleeve while at the same time is taking shape, the dosing system is responsible for absorbing the oil pipes and dosing in quantities of 250ml, to be placed inside the sleeves, the sleeves and finally are sealed and released to the operator within the packing boxes of 12 units. The electrical control system of the machine is programmed in a PLC SIEMENS S7-200 CPU 224xp, it was selected by having two communication ports, which are used to connect the PLC to the computer server and with the touch panel, located on the control panel of the machine, to control the system on the site and PC in addition to control, monitor and archive data from production, this computer located in a distant room monitoring of the production area. In the pneumatic system, the designs were made taking into account the reliability of the system as it goes to work in a climate of high temperature and humidity, as is the province of Santo Domingo Tsachilas. Pneumatic instruments are controlled by solenoid valves which convert electrical signals into pneumatic signals, which are controlled cylinder and valve passage which is responsible for directing the liquid into the dispenser and into the sleeve. Smart cards with built fulfill the function of controlling the on / off valve and for controlling the temperature of the resistance of the seals, the latter is a control card for voltage phase angle, this card provides the passing voltage to the primary low-voltage transformers, that because the primary drive in less that current transformer secondary gearbox. To calibrate the temperature of the sealing sleeves on the board is a variable resistance (potentiometer), which regulates the time of the shooting in the TRIAC control card. The programming of the touch panel and SCADA system are performed using the software WinCC flexible 2005 Advance, which was chosen to present this in a very friendly working environment with the user and the programmer, the programming functions are very similar SCADA for the touch panel. The difference between the two programs are the settings for the connection and the screen size and programming of work, with only 7 "on the panel, which is the actual physical size, the SCADA system, presents the options to control, monitor and store data in the system, checks are being made to start production, you can make changes within the program, as the speed of the machine, time stamp, is the monitoring process by displaying the state of the elements within the system, as well as the production and be stored within a database, with screens that are displayed in the working time of the components which indicates when the operator must perform preventive maintenance.
Appears in Collections:Ingeniería Eléctrica KENNEDY - Tesis de Pregrado

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