| Name: | Description: | Size: | Format: | |
|---|---|---|---|---|
| 24.85 MB | Adobe PDF |
Authors
Advisor(s)
Abstract(s)
A indústria de componentes para automóveis necessita de constante inovação, no sentido
de manter a elevada competitividade, imprescindível à sobrevivência de qualquer empresa
neste sector. A automação e robótica são vias incontornáveis para a prossecução dos
objetivos de produtividade desejados.
Mesmo dentro da automação, a evolução é constante. Para além disso, a crescente
inovação nos produtos fabricados, exige também novas soluções em termos de processos
de fabrico. Isto leva a que, soluções válidas até uma determinada altura, passem
facilmente a obsoletas, com necessidade premente de se implementarem novos sistemas
que correspondam às necessidades atuais.
Este trabalho teve por base uma necessidade detetada numa empresa fabricante de
acessórios para a indústria automóvel: estruturas para estofo de assento automóvel, entre
muitos outros. Atualmente, a estrutura do estofo automóvel assenta numa grelha
constituída por um conjunto de arames, que é agregado por uma série de tiras de plástico
injetadas em seu redor. As máquinas de injeção responsáveis por este processo têm
superfície de apartação horizontal, e necessitam de mão-de-obra adjacente para a
colocação dos arames no molde e descarga do conjunto, na razão de uma pessoa para
duas máquinas, dependendo do tempo de ciclo da injeção.
O trabalho consistiu no desenvolvimento de um sistema automático de alimentação e
descarga da máquina de injeção, que tivesse por base um sistema já existente, mas que
passasse a comportar outras funções até agora não desempenhadas pelos sistemas
antigos, ou seja, que fossem capazes de ultrapassar os problemas colocados pela
complexidade atual dos produtos em fabricação.
O projeto foi concluído com sucesso, tendo sido validado pela empresa FicoCables, através
da construção, teste e colocação em funcionamento de vários protótipos.
The automotive components industry requires constant innovation in order to keep high competitiveness necessary to company survival in this sector. Automation and Robotics are indispensable means for the desired productivity goals attainment. The evolution is constant even within the automation. In addition, the constant innovation in the manufactured products also requires new solutions in terms of manufacturing process. This leads to that valid solutions to a given point, pass easily to obsolete, needing urgently to implement new systems corresponding to current requirements. This work was based on a need detected in a company devoted to accessories manufacturing for the automotive industry: structures for automobile seats, among many others. Currently, the automotive seat structure is based on a grid consisting of wires that are aggregated by injected plastic strips series. The injection machines used for this process have horizontal parting surface, and require adjacent human labour for placing wires into the mould and set discharge, using a ratio of one person for two or four machines, depending on the injection cycle time. This work consisted in the development of automatic feeding and unloading tasks on an plastics injection machine, which was based on an existing system, but to behave other functions not performed by older systems, which were not able to overcome the problems brought by the current complexity of products in manufacturing (negative drafts). The project was successfully completed, having been validated by the company FicoCables, by building, testing and commissioning various prototypes already in use.
The automotive components industry requires constant innovation in order to keep high competitiveness necessary to company survival in this sector. Automation and Robotics are indispensable means for the desired productivity goals attainment. The evolution is constant even within the automation. In addition, the constant innovation in the manufactured products also requires new solutions in terms of manufacturing process. This leads to that valid solutions to a given point, pass easily to obsolete, needing urgently to implement new systems corresponding to current requirements. This work was based on a need detected in a company devoted to accessories manufacturing for the automotive industry: structures for automobile seats, among many others. Currently, the automotive seat structure is based on a grid consisting of wires that are aggregated by injected plastic strips series. The injection machines used for this process have horizontal parting surface, and require adjacent human labour for placing wires into the mould and set discharge, using a ratio of one person for two or four machines, depending on the injection cycle time. This work consisted in the development of automatic feeding and unloading tasks on an plastics injection machine, which was based on an existing system, but to behave other functions not performed by older systems, which were not able to overcome the problems brought by the current complexity of products in manufacturing (negative drafts). The project was successfully completed, having been validated by the company FicoCables, by building, testing and commissioning various prototypes already in use.
Description
Keywords
Indústria de componentes para automóveis Injeção de plásticos Automação Sistemas automáticos de alimentação Sistemas automáticos de descarga Automotive components industry Plastic injection moulding Automation Automatic feeding systems Automatic unloading systems