Monitoring and control of the multihead weighing process through a modified control chart

• J.Carlos García-Díaz ^[1] ; Alexander Pulido-Rojano ^[2]
  1. [1] Universidad Politécnica de Valencia

     Universidad Politécnica de Valencia

     Valencia, España

     
  2. [2] Industrial Engineering Program, Universidad Simón Bolívar, Barranquilla, Colombia.
• Localización: DYNA: revista de la Facultad de Minas. Universidad Nacional de Colombia. Sede Medellín, ISSN 0012-7353, Vol. 84, Nº. 200, 2017, págs. 135-142
• Idioma: inglés
• DOI: 10.15446/dyna.v84n200.58518
• Títulos paralelos:
  • Monitoreo y control del proceso de pesaje multicabezal a través de un gráfico de control modificado
• Enlaces
  • Texto completo (pdf)
• Resumen
  • español

    Los gráficos de control modificados se utilizan para el seguimiento y control de procesos de fabricación que son consideradoscomo procesos seis-sigma. El uso de estos gráficos se basa en la idea de que el costo de identificar y corregir causas especiales de variación es mucho más alto que el costo de productos alejados de su valor nominal. Por lo tanto, la media del proceso es esencialmente aceptable siempre que esté dentro de los límites de especificación. Estos conceptos han sido aplicados al proceso de envasado en pesadoras multicabezal. El peso del producto envasado, visto como la característica de calidad a ser monitoreada, debe ser lo más cercano posible a un peso objetivo y cumplir con la normativa. El proceso ha sido previamente optimizado ymejorado mediante una estrategia de envasado, la cual es evaluada a través de un algoritmo de envasado. De esta manera, un conjunto de experimentos numéricos fueron realizados para examinar las soluciones generadas, las cuales son posteriormente monitoreadas.

  • English

    Modified control charts are used to monitor and control manufacturing processes which are considered to be six-sigma processes. The use of these charts is based onthe idea that the cost of identifying and correcting special causes is much higher than the cost of off-target products. Therefore, the process mean is essentially acceptable as long as it is anywhere within the specification limits. These concepts are applied to the packaging process in multihead weighers. The weight of the packed product, seen as the quality characteristic tobe monitored, must be as close to a specified target weight as possible and comply with applicable regulations. The packaging process was previously optimized and improved using a packaging strategy, which was evaluated through a proposed packing algorithm. In this way, a set of numerical experiments were conducted to examine the solutions generated, which were subsequently monitored.

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