Design Concepts of a Shredder-Extruder Machine in Single Main Mover with Quality Function Deployment (QFD) Approach (original) (raw)

Abstract

The plastic recycling industry is a business that provides solutions in handling plastic waste, besides that it functions as a supplier of plastic raw materials which can reduce dependence on imported raw materials. The plastic recycling business actors still do not have a multi-function machine in reprocessing plastics into raw materials. Therefore it is necessary to have a shredder machine that functions shredding and extruder machine that can melt plastic until extrusion into plastic pellets. So that the machine can be made according to customer needs, the design concept used is the Quality Function Deployment (QFD) method. The steps taken in this QFD method include: preparing customer needs, comparing consumer needs with technical responses, so as to obtain the main components needed. The machine design consists of several concepts then compared to the reference concept. The results obtained of weighting based on the order of design priorities are: the design of a shredder blade that has a small cutting force, Shredder-extruder transmission can be combined and can be separated, the hopper can be closed and opened. The weighting results based on the selection of concepts obtained a shredder and extruder machines design that can be operated alternately or simultaneously using an single electric motor as the main mover.