Design Of Cotton Spinning Machine For Middle Textile Industries

Micro and Small Scale Enterprises (MSE’s) are widely implementing and developing in allrnsectors in Ethiopia. When we see one of the major sectors in which MSE’s are involved is inrntextile sector and when we observe the commonly used cotton spinning machines used byrnweavers organized in MSE’s and in home to home is made of wood. It only spines on one takeuprnshaft from a supply of cotton and consumes large amount of man-work hours to get so manyrnspun yarn. But, cotton spinning is the main operation in the production of clothes by micro andrnsmall scale owners. Therefore, it is important to improve the spinning system that can bernoperated by small and middle scale industry level. Understanding this reality, this thesis focusesrnon designing cotton spinning machine. In this thesis, theoretical background and development ofrnspinning is discussed; different characteristics of yarn are studied and spinning systems withrntheir economic ranges are explained. On the product planning stage, different mechanisms andrncomponents are compared and selected properly. Based on the selection a spinning machine thatrncan spin cotton in to yarn similar to hand spun yarn is designed. The machine will be operated byrnmotor; spools are feed to the machine manually.

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