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Abstract(s)
Na presente dissertação descreve-se a realização de um estudo de métodos e tempos com vista à análise e melhoria do processo de rebobinagem duma empresa dedicada à produção e comercialização de vários tipos de filme plástico. Deste modo, o foco foi a identificação e eliminação de desperdícios e a criação de maior valor acrescentado. Para a realização deste projeto foi utilizada uma metodologia de investigação orientada para o problema. Foi realizada, de início, uma revisão bibliográfica sobre o estudo dos Métodos e Tempos e Lean Production. O diagnóstico da empresa foi iniciado realizando uma caracterização dos processos produtivos de cada secção da empresa, seguida por uma descrição e análise mais detalhada do funcionamento da secção objeto de estudo deste projeto. Após este reconhecimento, foi realizado o estudo de Métodos e Tempos. A partir do reconhecimento dos problemas identificados durante o estudo, foram apresentadas algumas propostas, tendo em vista a resolução dos mesmos. A implementação de manutenções preventivas, uma das propostas apresentadas, visam a eliminação de custos relativos a paragens não-planeadas em cerca de 886,04€/mês e o aumento de faturação em cerca de 1088€ por turno de produção (8h). A implementação dos 5S com as marcações no chão de fábrica melhoraram visivelmente a organização e arrumação dos espaços. Foi ainda criada uma base digital para o registo diário de intervenções da manutenção de modo a permitir a consulta e identificação dos problemas mais recorrentes. Os resultados obtidos permitiram ainda à empresa identificar os tempos de ciclo e tempos padrão da linha de produção em estudo, demonstrando desta forma a importância deste tipo de estudo e a necessidade de o alargar a todos os processos produtivos da empresa. No final é possível afirmar que a eliminação do desperdício através das ferramentas Lean permitem um acrescento significativo de valor ao produto final, assim como aumentar a faturação com praticamente zero investimento. O estudo de Métodos e Tempos permitiu identificar as atividades críticas e os estrangulamentos do processo.
The present dissertation describes a time and motion study, as well as an analysis and optimization of processes in the rewinding section of a company dedicated to the production and commercialization of various types of plastic film. This project had as main objective the accomplishment of time-motion study and, consequently, the analysis and optimization of processes, using Lean Production principles and tools as a resource. In this way, the focus was on the identification and elimination of waste and the creation of greater added value. In order to carry out this project, a problem-oriented research methodology was used. A bibliographical review on the study of Time-Motion and Lean Production was carried out. The company diagnosis was started by performing a characterization of the productive processes of each section of the company, followed by a description and more detailed analysis of the operation of the section under study of this project. After this recognition, the Time and Motion study was carried out. From the recognition of the problems identified during the study, some proposals were presented, with a view to their resolution. The implementation of preventive maintenance, one of the proposals presented, aims at eliminating costs related to unplanned stoppages by around 886.04 €/month and increasing billing by € 1088 per production shift (8h). The implementation of the 5S with the markings on the factory floor visibly improved the organization and arrangement of spaces. A digital database was also created for the daily recording of maintenance interventions in order to allow the consultation and identification of the most recurrent problems. The results also allowed the company to identify the cycle times and standard times of the production line under study, demonstrating in this way the importance of this type of study and the need to extend it to all the productive processes of the company. In the end it is possible to state that eliminating waste through Lean tools allows a significant addition of value to the final product, as well as increase billing with virtually zero investment. The Time and Motion study allowed to identify the critical activities and the bottlenecks of the process.
The present dissertation describes a time and motion study, as well as an analysis and optimization of processes in the rewinding section of a company dedicated to the production and commercialization of various types of plastic film. This project had as main objective the accomplishment of time-motion study and, consequently, the analysis and optimization of processes, using Lean Production principles and tools as a resource. In this way, the focus was on the identification and elimination of waste and the creation of greater added value. In order to carry out this project, a problem-oriented research methodology was used. A bibliographical review on the study of Time-Motion and Lean Production was carried out. The company diagnosis was started by performing a characterization of the productive processes of each section of the company, followed by a description and more detailed analysis of the operation of the section under study of this project. After this recognition, the Time and Motion study was carried out. From the recognition of the problems identified during the study, some proposals were presented, with a view to their resolution. The implementation of preventive maintenance, one of the proposals presented, aims at eliminating costs related to unplanned stoppages by around 886.04 €/month and increasing billing by € 1088 per production shift (8h). The implementation of the 5S with the markings on the factory floor visibly improved the organization and arrangement of spaces. A digital database was also created for the daily recording of maintenance interventions in order to allow the consultation and identification of the most recurrent problems. The results also allowed the company to identify the cycle times and standard times of the production line under study, demonstrating in this way the importance of this type of study and the need to extend it to all the productive processes of the company. In the end it is possible to state that eliminating waste through Lean tools allows a significant addition of value to the final product, as well as increase billing with virtually zero investment. The Time and Motion study allowed to identify the critical activities and the bottlenecks of the process.
Description
Keywords
Métodos e Tempos Lean Production 5S TPM Time and Motion Lean Production