Optimizacija izrabe razpoložljivosti strojev

Černač, Tine (author), Kušar, Janez (mentor), Berlec, Tomaž (comentor)

Na obravnavanem primeru treh ekscentričnih stiskalnic smo izvedli SMED metodo z namenom hitrejšega postopka menjave orodja. Najprej smo stiskalnice dva meseca analizirali in beležili njihovo učinkovitost ter izkoriščenost. Beležili smo ure delovanja, ure zastojev ter ure menjav orodij. Glede na izsledke analize smo na oddelku opravili SMED delavnico ter predlagali rešitve za skrajšanje časa menjave orodja. Ocenili smo okviren prihranek časa ter velikost investicije za implementacijo vseh rešitev. Poleg tega smo analizirali še vzroke za zastoje med delovanjem ter vzroke za nerazpoložljivost predmetov dela. Vsem možnim vzrokom smo predlagali ukrepe za omejitev oz. eliminacijo.

• Language: Slovenian
• Keywords: proizvodni proces, kapaciteta, učinkovitost, SMED, 5S, optimizacija
• Work type: Master's thesis/paper
• Typology: 2.09 - Master's Thesis
• Organization: FS - Faculty of Mechanical Engineering
• Place of publishing: Ljubljana
• Publisher: [T. Černač]
• Year: 2022
• Number of pages: XX, 66 str.
• PID: 20.500.12556/RUL-137013
• UDC: 658.5.018.2:621.9(043.2)
• COBISS.SI-ID: 109702403
• Publication date in RUL: 28.05.2022

Secondary language

• Language: English
• Title: Machine availability optimization

Abstract

We conducted the Single-Minute Exchange of Die (SMED) method on eccentric presses to reduce setup times between tool changeovers. First, we analyzed the presses for two months and collected efficiency and utilization data such as working hours, breakdown hours, and setup hours. Based on the analysis, we arranged a SMED workshop on the production floor, analyzed tool changeover processes, and prepared a list of solutions to reduce the setup time. We assessed time reduction and calculated the investment amount to implement all solutions. Furthermore, we analyzed causes for breakdowns and other stoppages during operation. For those, we prepared a further list of measures to avoid or eliminate such problems in the future.

• Keywords: production process, capacity, efficiency, SMED, 5S, optimization