Diseño y Construcción de un Puller Automático Doble para la Extracción de Tubería de PVC en la Empresa Flexi Rigid Cia. Ltda.

Abstract

A double automatic squeegee type two rollers was designed and built, it is used to remove PVC pipe in the company Flex & Rigid CIA. LTDA. in Ambato. It was investigated the extrusion process to determine the maximum flow of material to be extruded by extruder, this variable is important to calculate the maximum speed puller shot, resulting in 30 m/min, subsequently gear motors sizing is performed, resulting in a power HP 0.75. The structural design of the squeegee done in software solidworks mechanical 3D model has the following measures: 1.10 m high, 0.80 m wide and 0.80 m deep. The machine consist of a base structural profile on them are two beams and two steel plates to assemble fixed, mobile arms and rollers each squeegee has a three-phase geared motor HP ¾ a chain drive system and a gear train for transmitting power and circular motion motor rollers. To operate, regulate the speed of shot [0-30] m/min pullers and monitor basic engine parameters easily, safely and accurately a SCADA system consists of a graphical interface is implemented man machine interface (HMI), a Modbus industrial communication network and frequency inverters, monitoring and supervising these stations centrally. With the implementation of this machine it is able to reduce manufacturing times hose at 38.89%, 40.74% and 55.56% in the production of 1-inc pipe , ¾ inch and ½ inch respectively. In addition, it was joined the production profiles for windows and monocolor welts. Production downtime is greatly reduced, taking as a result an increase in the productive capacity of the company. The implementation of the technological device Flexi & Rigid CIA. LTDA. Company, and other similar companies is recommended, it is also recommended to periodic maintenance to machines, both mechanical and electrical part, for best performance and durability.