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COMO HACER UNA GUILLOTINA PASO A PASO [PDF] —> GRATIS – IDEAS BRILLANTES

COMO HACER UNA GUILLOTINA PASO A PASO [PDF] —> GRATIS


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COMO FABRICAR UNA GUILLOTINA PASO A PASO

INTRODUCCIÓN

Una cizalla funciona en forma similar a una tijera. Los filos de ambas cuchillas se enfrentan presionando sobre la superficie a cortar hasta que vencen la resistencia de la superficie a la tracción rompiéndola y separándola en dos.

El borde cortado por cizallamiento se presenta irregular. La fuerza necesaria para realizar el corte se obtiene ejerciendo palanca entre un brazo fijo que se coloca en la parte inferior y otro que es el encargado de subir y bajar ejerciendo la fuerza.

En las cizallas manuales este movimiento de ascenso y descenso se realiza por un operario, aunque también existen las cizallas automatizadas.

Existen diferentes tipos de cizallas las cuales han ido evolucionando a través de tiempo conforme a las necesidades:

Esquiladora: es utilizada para cortar prendas textiles. Se diferencian de las tijeras normales en que el corte que aplica es en zigzag en lugar de recto.

Podadora: es utilizada en jardinería para podar árboles y arbustos.

Cizalla de metal: empleada para cortar hojalata o metales finos. Las hay de tres tipos en función del corte: recto, curvado hacia la izquierda o curvado hacia la
derecha.

Mandíbulas de vida: es una herramienta hidráulica usada en labores de rescate.

Cizalla industrial: es una máquina herramienta que posee una cuchilla que hace cortes verticales al ejercer presión sobre paquetes de láminas de distintos materiales. Posee un motor eléctrico o sistemas con actuadores que le permite ejercer mayor presión.

En la industria metalúrgica y dentro del ámbito del corte y la deformación metálica, se utilizan varios tipos de máquinas, entre ellas están las cizalladoras, las cuales son muy manejadas en el campo de la fabricación de transformadores de energía eléctrica; requeridas principalmente para el de corte de lámina de acero al silicio utilizados en los apilados del núcleo de los transformadores secos.

Algunas de empresas a nivel nacional que se dedican a la fabricación de transformadores de energía, no cuentan con la máquina adecuada para realizar los cortes y así sustentar la capacidad de producción necesaria.

Durante el proceso de corte de láminas de silicio para la fabricación de transformadores de energía algunas de estas empresas utilizan en su cadena de producción cizallas manuales que generan cortes con bordes irregulares (rebaba), causando baja eficiencia en el núcleo de los transformadores de energía eléctrica. Además de no estar cumpliendo con la demanda esperada en este punto de producción debido a que al transcurrir la jornada de trabajo, los operarios sienten la carga laboral de realizar una tarea repetitiva mientras cortan las láminas, lo que les genera fatiga de trabajo manual que aparece en aquellos trabajos donde predominan los esfuerzos físicos que se caracterizan por procesos mecánicos, automáticos, repetitivos, rutinarios, donde hay una reducción de la autonomía del trabajador y hay un empobrecimiento de tareas que origina una infraestimulación sensorial y cognitiva.

La fatiga constituye un fenómeno complejo que se caracteriza porque el trabajador baja el ritmo de actividad, siente cansancio, los movimientos se hacen más torpes e inseguros, aparece una sensación de malestar e insatisfacción, se generan accidentes laborales y se disminuye el rendimiento en cantidad y calidad, Universidad Complutense Madrid.

DESCARGA AQUI: COMO FABRICAR UNA GUILLOTINA

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