| Name: | Description: | Size: | Format: | |
|---|---|---|---|---|
| 33.85 MB | Adobe PDF |
Authors
Advisor(s)
Abstract(s)
Os plásticos são uma parte essencial da vida moderna, sendo utilizados nas mais variadas aplicações e indústrias. Na indústria das embalagens estes tornaram-se dominantes e a tendência é para a continuação no aumento da sua utilização. Contudo, a sua natureza descartável faz com que estas embalagens sejam abandonadas no meio ambiente, levando a uma série de consequências ambientais nefastas. Para mitigar este problema, no âmbito do projeto Sustainable Plastics, financiado por fundos europeus, foram desenvolvidos compostos com incorporação de materiais poliméricos biodegradáveis, que se pretende que substituam os plásticos convencionais e sejam inseridos nas cadeias produtivas já existentes. Esta dissertação visa o projeto de um equipamento para teste do processo de corte e soldadura por faca quente
nestes compostos, identificado como a maior dificuldade técnica na incorporação dos mesmos na infraestrutura utilizada para produção de sacos para fruta e legumes tipicamente encontrados nos supermercados. Este equipamento será desenvolvido seguindo a metodologia Design Science Research (DSR) e deverá ser altamente parametrizável, capaz de recriar as condições em ambiente real de produção e de trabalhar com os rolos de composto biodegradável fornecidos para teste, tendo funções de desenrolamento e enrolamento. Foi desenvolvido todo o projeto mecânico do equipamento e selecionados os principais
componentes elétricos e de controlo que o compõem. Todos os objetivos inicialmente propostos para esta dissertação foram cumpridos.
Plastics are an essential part of modern life and are used in a wide variety of applications and industries. In the packaging industry they have become dominant, and the trend is for their use to continue to increase. However, their disposable nature means that they are abandoned in the environment, leading to a series of harmful environmental consequences. To mitigate this problem, the Sustainable Plastics project, financed by European funds, has developed compounds incorporating biodegradable polymeric materials, which are intended to replace conventional plastics and be inserted into existing production chains. This dissertation aims to design equipment to test the hot knife cutting and welding process in these compounds, identified as the greatest technical difficulty in incorporating them into the infrastructure used to produce fruit and vegetable bags typically found in supermarkets. This equipment will be developed following the Design Science Research (DSR) methodology and should be highly configurable, capable of recreating conditions in a real production environment and working with the rolls of biodegradable compound supplied for testing, having unwinding and winding functions. The entire mechanical design of the equipment was developed and the main electrical and control components that make it up were selected. All the objectives initially proposed for this dissertation were met.
Plastics are an essential part of modern life and are used in a wide variety of applications and industries. In the packaging industry they have become dominant, and the trend is for their use to continue to increase. However, their disposable nature means that they are abandoned in the environment, leading to a series of harmful environmental consequences. To mitigate this problem, the Sustainable Plastics project, financed by European funds, has developed compounds incorporating biodegradable polymeric materials, which are intended to replace conventional plastics and be inserted into existing production chains. This dissertation aims to design equipment to test the hot knife cutting and welding process in these compounds, identified as the greatest technical difficulty in incorporating them into the infrastructure used to produce fruit and vegetable bags typically found in supermarkets. This equipment will be developed following the Design Science Research (DSR) methodology and should be highly configurable, capable of recreating conditions in a real production environment and working with the rolls of biodegradable compound supplied for testing, having unwinding and winding functions. The entire mechanical design of the equipment was developed and the main electrical and control components that make it up were selected. All the objectives initially proposed for this dissertation were met.
Description
Keywords
DSR methodology Mechanical design Packaging Biodegradable plastics Hot knife welding Hot knife sealing Metodologia DSR Projeto mecânico Embalagens Plásticos biodegradáveis Soldadura por faca quente Selagem por faca quente