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Abstract(s)
A presente dissertação foi realizada na empresa Printerman Unipessoal Lda., com vista a melhorar o processo produtivo inicialmente implantado de reciclagem de tinteiros.
Inicialmente, realizou-se um descritivo do processo produtivo de reciclagem de tinteiros, bem como o seu fluxograma. Realizada esta fase primordial, recolheram-se dados processuais que permitiram uma caracterização real do processo que vigorava.
Após terminada a caracterização, aplicaram-se modelos de ferramentas de apoio à decisão, como a análise ABC. Esta análise permitiu diferenciar as etapas do processo produtivo, de modo a identificar as que possuíam maior impacto. As etapas identificadas como fundamentais para o processo foram as que apresentavam maiores custos. Após realizada a análise, constatou-se que a otimização teria maior impacto na melhoria do processo se as atenções se focassem na lavagem e no enchimento dos tinteiros.
Assim, a lavagem e o enchimento foram as etapas sobre as quais incidiu a otimização.
No caso da lavagem, a implementação de um novo equipamento com reajustes no processo produtivo, permitiu uma poupança de 28,9 segundos no tempo de ciclo, por tinteiro. Em termos diários, tendo em conta uma média produtiva de 313 tinteiros, esta oupança traduz-se numa redução do tempo de intervenção do colaborador de 151,0 minutos, sendo que o retorno do investimento será obtido ao final de 4,4 anos.
Para o enchimento, realizou-se um estudo alargado das opções de melhoria, tendo sido consideradas duas hipóteses: um equipamento projetado internamente e uma proposta de aquisição externa. Com este estudo, relativamente ao equipamento desenvolvido na Printerman Unipessoal Lda., estimou-se uma poupança de 12,0 segundos por tinteiro, o que equivale a uma poupança média diária de 62,6 minutos. Quanto à proposta da REEQ - Outstanding Reprocessing Equipment, existiria uma redução de 14,1 segundos por tinteiro, equivalente a um abatimento de 73,6 minutos diários na intervenção do colaborador. Tendo em conta que o período de recuperação do capital da proposta desenvolvida internamente é de 1,9 anos e o da proposta externa é de 6,5 anos, optou-se por desenvolver internamente o equipamento, uma vez que a recuperação de capital é 3,4 vezes inferior. À data da conclusão desta dissertação, a execução do equipamento encontrava-se em curso.
This dissertation was carried at Printerman Unipessoal Lda. company, in order to improve the current recycling process of inkjet cartridges. Initially, it was made a description of the production process of recycling cartridges, as well as its flowchart. After this primordial phase, it was collected the data that allowed to make a real characterization of the process. After this characterization, it was used some decision support tools, such as ABC analysis. This analysis allowed to distinguish the different stages of the productive process, in order to identify the ones that have more impact. The steps identified as fundamental to the process were those present the highest costs. After the analysis, it was verified that the optimization would have a greater impact on the improvement of the process, if the attention was focused on washing and filling the cartridges. In the case of the washing process, the implementation of a new equipment with some readjustments in the production process allowed a saving of 28,9 seconds in the cycle time per cartridge. In daily terms, taking into account a production average of 313 cartridges, this saving translates into a reduction of the worker intervention time of 151,0 minutes and the return of the investment will be achieved in 4,4 years. For the filling process, a broad study of the improvement options was carried out, considering two hypotheses: an internally designed equipment and an external acquisition proposal. With this study, in relation to the equipment developed at Printerman Unip Lda., a saving of 12,0 seconds per cartridges was estimated which is equivalent to a daily average saving of 62,6 minutes. As for the REEQ – Outstanding Reprocessing Equipment proposal, there would be a reduction of 14,1 seconds per cartridge equivalent to a reduction of 73,6 minutes per day in the employee’s intervention. Taking in account that the capital recovery period of the internally developed solution is 1,9 years and the external one’s is 6,5 years, it was decided to develop it internally, since the capital recovery is 3,4 times lower. At the end of this dissertation, the execution of the equipment is in progress.
This dissertation was carried at Printerman Unipessoal Lda. company, in order to improve the current recycling process of inkjet cartridges. Initially, it was made a description of the production process of recycling cartridges, as well as its flowchart. After this primordial phase, it was collected the data that allowed to make a real characterization of the process. After this characterization, it was used some decision support tools, such as ABC analysis. This analysis allowed to distinguish the different stages of the productive process, in order to identify the ones that have more impact. The steps identified as fundamental to the process were those present the highest costs. After the analysis, it was verified that the optimization would have a greater impact on the improvement of the process, if the attention was focused on washing and filling the cartridges. In the case of the washing process, the implementation of a new equipment with some readjustments in the production process allowed a saving of 28,9 seconds in the cycle time per cartridge. In daily terms, taking into account a production average of 313 cartridges, this saving translates into a reduction of the worker intervention time of 151,0 minutes and the return of the investment will be achieved in 4,4 years. For the filling process, a broad study of the improvement options was carried out, considering two hypotheses: an internally designed equipment and an external acquisition proposal. With this study, in relation to the equipment developed at Printerman Unip Lda., a saving of 12,0 seconds per cartridges was estimated which is equivalent to a daily average saving of 62,6 minutes. As for the REEQ – Outstanding Reprocessing Equipment proposal, there would be a reduction of 14,1 seconds per cartridge equivalent to a reduction of 73,6 minutes per day in the employee’s intervention. Taking in account that the capital recovery period of the internally developed solution is 1,9 years and the external one’s is 6,5 years, it was decided to develop it internally, since the capital recovery is 3,4 times lower. At the end of this dissertation, the execution of the equipment is in progress.
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Keywords
Análise ABC Enchimento Impressão Lavagem Otimização Payback Processo Tinteiro ABC analysis Inkjet Printing Washing Filling Process Optimization