By Using Simulation Technique Determining the Effects of Manual Doffing Process on the Machine Efficiency and Profitability of the Spinning Mills

Authors

  • Ahmet Baki Engin Haliç University Engineering Faculty, Department of Industrial Engineering, Istanbul, Turkey.

Abstract

Doffing process defined by removal of full spinning tubes by stopping the ring spinning machine and replacing it with the new ones, is one of the essential ring spinning processes. Although this process can be done automatically by specialized ring machines, it is still done manually in many ring spinning mills avoiding the cost of doffing equipment. However, the manual doffing process can lead to quite a lot of yarns breaks affecting the machine efficiency and the production significantly. Here, we examined how and to what extent unwanted breaks affect the machine efficiency by using simulation technique and performing economic analysis taking into account certain parameters of efficiency. Our data show that increased lambda values with the same doffing process breaks result in higher production and profit losses. We suggest that the decision on doffing automation should be made using break-even analysis projecting both cost of doffing breaks and automation.

Author Biography

  • Ahmet Baki Engin, Haliç University Engineering Faculty, Department of Industrial Engineering, Istanbul, Turkey.
    Industrial Engineering, Professor

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Published

2021-04-05

Issue

Vol. 12 No. 1 (2021)

Section

Peer Reviewed Article

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