INJECTION MOLDING MACHINES ADEQUANCY TO REGULATORY STANDARDS NR 17 AND NR 35
Item
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Tipo do ITEM
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Artigo Ciêntifico
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Título do Artigo
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INJECTION MOLDING MACHINES ADEQUANCY TO REGULATORY STANDARDS NR 17 AND NR 35
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Descrição
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Safety risks with plastic injection machines represent a serious problem in the plastic production
chain. Even with the implementation of ABNT NBR 13536/95 to establish the minimum safety
requirements for injection molding machines and its subsequent inclusion in the regulatory
standard NR 12, there are risks related to work at heights and ergonomics that are not properly
specified, especially during maintenance activities of the resin hopper loader or resin color
change-over. To mitigate such risks, the present work proposes to develop two concepts for safety
adaptation of injection machines to NR 17 and NR 35, based on their size and clamping force,
being the first a prototype of an access ladder and metallic support of the resin hopper loader, and
the second prototype being a safety platform prototype at the top of the injection machine, so that
the operator could have 360º access to the resin hopper loader. After the design, construction and
implementation of the two prototypes, it was observed the compliance with the NR 17 and NR 35,
as well as improvements in productivity, safety, ergonomics and morale of the operators in the
production process. The present work also exposes the costs and characteristics of the materials
used.
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Abstract
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Safety risks with plastic injection machines represent a serious problem in the plastic production
chain. Even with the implementation of ABNT NBR 13536/95 to establish the minimum safety
requirements for injection molding machines and its subsequent inclusion in the regulatory
standard NR 12, there are risks related to work at heights and ergonomics that are not properly
specified, especially during maintenance activities of the resin hopper loader or resin color
change-over. To mitigate such risks, the present work proposes to develop two concepts for safety
adaptation of injection machines to NR 17 and NR 35, based on their size and clamping force,
being the first a prototype of an access ladder and metallic support of the resin hopper loader, and
the second prototype being a safety platform prototype at the top of the injection machine, so that
the operator could have 360º access to the resin hopper loader. After the design, construction and
implementation of the two prototypes, it was observed the compliance with the NR 17 and NR 35,
as well as improvements in productivity, safety, ergonomics and morale of the operators in the
production process. The present work also exposes the costs and characteristics of the materials
used.
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Língua do arquivo
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inglês
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Data da Publicação
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Ano 2021
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Palavra-chave
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Injection Molding Machine
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Plastic
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NR 17
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NR 35
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NR 12
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Autores
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Rick Rocha de Oliveira
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Jandecy Cabral Leite
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Local
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UFPA - Belém, 2021
