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Browsing by Author "Álvarez Rojas, Kevin Marcelo"

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    Modelo TAC (Tambor - Amortiguador - Cuerda) para el abastecimiento de materia prima en la Empresa Calzado Gamo's
    (Universidad Técnica de Ambato. Facultad de Ingeniería en Sistemas, Electrónica e Industrial. Carrera de Ingeniería Industrial en Procesos de Automatización, 2014-11) Álvarez Rojas, Kevin Marcelo; Reyes Vásquez, John Paúl
    RESUMEN El proyecto de investigación se centra en elaborar el modelo TAMBOR – AMORTIGUADOR – CUERDA de la Teoría de las Restricciones ya que la empresa Calzado Gamo´s tiene gran cantidad de inventario en sus bodegas de materia prima. Se identifica a la demanda del mercado como la restricción propia del sistema para el desarrollo del plan de producción (tambor) con lo que se nivela el flujo, a continuación se agrega los materiales a la bodega central de materia prima y se establece los niveles óptimos de amortiguamiento de inventario los cuales se revisa periódicamente a través de la gerencia dinámica de amortiguadores y al final se ahoga la liberación de materiales (cuerda). El inventario se gerencia con el sistema de colores de prioridades azul (sobre stock), verde (inventario óptimo), amarillo (prevención), rojo (inventario bajo) y negro (venta perdida) y se logra reducir en 100%, 92,87% y 13,07% la zona negro, rojo y azul respectivamente y se aumenta en 5,14 y 1,14 veces las zonas verde y amarillo respectivamente. El ahorro anual de dinero en inventario es de 124.016,47 dólares americanos. ABSTRACT The research project focuses on elaborate the model DRUM - BUFFER - ROPE application of Theory of Constraints because the company Gamo´s have lot of inventory in their warehouses feedstock. First identified market demand as their own constraint system for the development of the master production schedule (drum), with this the flow is leveled, then the materials are added to the central warehouse feedstock and optimal levels of buffering are set, the buffers are reviewed periodically with dynamic buffer management and finally the release of materials (rope) drowns. The inventory management system is with priority colors: blue (excess stock), green (optimal inventory), yellow (prevention), red (low stock) and black (lost sale) and will reduce 100%, 92.87% and 13.07% the black, red and blue areas respectively and increased 5.14 and 1.14 times the green and yellow areas respectively. Saving money in inventory is U.S. $ 124,016.47.
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    Sistema de Manufactura Reconfigurable según el paradigma Holónico para el proceso de Troquelado en una empresa de Calzado Deportivo
    (Universidad Técnica de Ambato. Facultad de Ingeniería en Sistemas, Electrónica e Industrial. Maestría en Producción y Operaciones Industriales, 2021) Álvarez Rojas, Kevin Marcelo; Reyes Vásquez, John Paúl
    Abstract. The present research proposes a holonic architecture for reconfigurable manufacturing system based on ADACOR. The architecture is controlled as an intelligent system, centralized when the process is in a normal state and decentralized through holons in the presence of disturbances. Holarchy is defined with two main holons, supervisor and routing, that are responsible for distributing the jobs based on the operating states of the system. Experimentation starts from a base scenario in which conditions are optimal and the architecture is tested through a simulation model in FlexSim, conventional and holonic control scenarios are defined with partial and total server failures. The results allow to demonstrate the successful application of the model in the footwear industry. Holonic control with partial failure increases throughput by + 1.66 percent, decreases WIP by -3.17 percent and increases machine utilization by + 1.38 percent compared to conventional control. In total failure similar results are achieved with + 0.68 percent, -0.68 percent and + 0.62 percent respectively.

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