Projeto preliminar de uma máquina extrusora para produção de filamento de polietileno para impressoras 3D

Abstract

The constant growing of solid residues utilisation in majority of plastics from binds and rapid disposal by the user ends its lifecycle soon. Therefore this disposal usually it’s not praticated in proper way being discarded on regular landfills. Polymers are important for production and development of new products due to its properties for structural resistance as well as low cost. Recycling is an important factor for reinserting thermoplastic polymers such as polyethylene in consumption market. 3D printing gets contrast in production with ability to develop products and prototypes being able for manufacture using thermoplastic recycled filaments. In front of the big environmental concern related with growing of polyethylene production, this paper aims to preliminary design an extrusion machine for polyethylene recycling and filament production as an alternative usage in 3D printing with FDM model. An existing extrusion machine was studied and redesigned due to previous conceptual matters in mechanical system. So was stablished new design specifications, new dimensions for the mechanical system obtaining as main result the remodelled mechanical system to support polyethylene as raw material.