Diseño de una máquina extrusora para la obtención de agregados utilizando neumáticos y botellas recicladas siguiendo la Norma ASTM E11

Abstract

The objective of this technical Project was focused on designing, simulating and validating extruder machine to obtain aggregates based on plastic bottles a recycled tires following the ASTM E11 standard. Information from bibliographic sources of several authors was analyzed and collected to establish the main design parameters. The necessary production of the machine of 18 hg/h was taken as the main characteristic for selecting the appropriate diameter, opting for diameter of 60 mm that provides the production capacity if it is necessary to increase production in the future. The concurrent design method through QFD was applied. It provides us with a selection of alternatives through weighting, meeting the requirements of the user´s and the engineer´s voice. It was determined that the single screw mechanical components of the machine were calculated and designed theoretically to be designed using SolidWorks later. Jointly Stress and strain analysis was performed using the design software and ANSYS. Validation was performed by analyzing the values obtained by calculations and the results obtained by simulation. The static simulation was executed for elements such as the screw and the structure, dynamic to determine vibrations in the design and analyze efforts in the transmission system by gears and thermal to analyze the behavior of the heat source in the extrusion process. It is recommended to develop the model construction based on the parameters defined in the study the selected elements and materials since they are suitable and recommended for the machine.