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Abstract(s)
Nos dias hoje, com a crescente competitividade entre empresas do mesmo setor, é fulcral
que as empresas se diferenciem no mercado onde atuam. Deste modo, a indústria das
embalagens de plástico enfrenta diversos desafios no que respeita à entrega de produtos
com elevada qualidade, de forma rápida e com menos custos. A implementação da Filosofia
Lean permite a eliminação de desperdícios e otimização dos processos.
O Estágio teve como objetivo o estudo da linha de produção da Neutroplast, de modo a
identificar as possíveis ineficiências e recomendar sugestões de melhorias, que permitam
tornar o sistema de produção atual mais eficiente.
Para alcançar este objetivo começou-se por realizar uma revisão bibliográfica sobre as
temáticas em estudo. De seguida, os problemas em estudo foram contextualizados e
analisados. As ineficiências identificadas na linha de produção diziam respeito às auditorias
internas e ao processo de troca de molde.
De seguida, foram formuladas as propostas de melhoria, que passaram pela aplicação de
duas ferramentas Lean, a auditoria Kamishibai orientada aos 5S para as auditorias
internas, e a ferramenta Single Minute Exchange of Die (SMED) para redução do tempo de
setup. As implementações das propostas de melhoria trouxeram resultados muito positivos,
isto é, as auditorias Kamishibai resultaram numa diminuição de 66,66% de não
conformidades detetadas e o SMED resultou num decréscimo de 53,14% de tempo de
operação no processo de setup em máquinas extrusão sopro, traduzindo-se numa poupança
estimada de 7.743,17 euros por ano.
Desta forma, pode-se concluir que a implementação das ferramentas Lean na indústria das
embalagens de plástico pode resultar em benefícios para as empresas. Como proposta de
trabalhos futuros, recomenda-se a aplicação da ferramenta SMED em outras máquinas de
injeção, uma vez que se obtiveram resultados positivos na máquina de extrusão sopro.
Nowadays, with increasing competition between companies in the same sector, it is essential that companies differentiate themselves in the market where they operate. Therefore, the plastic packaging industry faces several challenges that do not respect the delivery of high quality products, faster and at lower costs. The implementation of the Lean Philosophy allows the elimination of waste and the optimization of processes. The objective of the Internship was to study the Neutroplast production line, in order to identify possible inefficiencies and recommend suggestions for improvements, which would make the current production system more efficient. To achieve this objective, a bibliographical review on the topics under study was carried out. Then, the problems under study were contextualized and detailed. The inefficiencies identified in the production line concerned internal audits and the mould change process. Improvement proposals were then formulated, which included the application of two Lean tools, the 5S-oriented Kamishibai audits for internal audits, and the Single Minute Exchange of Die (SMED) tool to reduce setup time. The implementation of the improvement proposals brought positive results: Kamishibai audits resulted in a 66.66% reduction in non-conformities detected and the SMED resulted in a 51.87% decrease in setup time in the machine configuration process of blow extrusion, resulting in an estimated saving of 7,743.17 euros per year. Therefore, it was concluded that the implementation of Lean tools in the plastic packaging industry can result in benefits for companies. As a proposal for future work, it was recommended to apply the SMED tool to other injection machines, once the blow extrusion machine obtained positive results.
Nowadays, with increasing competition between companies in the same sector, it is essential that companies differentiate themselves in the market where they operate. Therefore, the plastic packaging industry faces several challenges that do not respect the delivery of high quality products, faster and at lower costs. The implementation of the Lean Philosophy allows the elimination of waste and the optimization of processes. The objective of the Internship was to study the Neutroplast production line, in order to identify possible inefficiencies and recommend suggestions for improvements, which would make the current production system more efficient. To achieve this objective, a bibliographical review on the topics under study was carried out. Then, the problems under study were contextualized and detailed. The inefficiencies identified in the production line concerned internal audits and the mould change process. Improvement proposals were then formulated, which included the application of two Lean tools, the 5S-oriented Kamishibai audits for internal audits, and the Single Minute Exchange of Die (SMED) tool to reduce setup time. The implementation of the improvement proposals brought positive results: Kamishibai audits resulted in a 66.66% reduction in non-conformities detected and the SMED resulted in a 51.87% decrease in setup time in the machine configuration process of blow extrusion, resulting in an estimated saving of 7,743.17 euros per year. Therefore, it was concluded that the implementation of Lean tools in the plastic packaging industry can result in benefits for companies. As a proposal for future work, it was recommended to apply the SMED tool to other injection machines, once the blow extrusion machine obtained positive results.
Description
Keywords
Auditoria Kamishibai Filosofia Lean Indústria de
Embalagens Plásticas Otimização da Produção Smed