magistrsko delo magistrskega študijskega programa II. stopnje Strojništvo
Rok Sedmak (Author), Jurij Prezelj (Mentor)

Abstract

Med procesom proizvodnje polimernih filamentov je treba za zagon navijalnih avtomatov in pri menjavi kolutov manipulirati s filamenti. Za ta namen se v industriji uporabljajo sesalne pištole na stisnjen zrak. Zaradi velikih izgub pri pripravi stisnjenega zraka je bil razvit prototipni sesalec na podtlak. V nalogi smo sesalcu izboljšali in izmerili sesalno karakteristiko. Določili smo obratovalne točke sesalnih pištol in simulirali tok zraka v posamezni šobi. Na merilni postaji smo izmerili silo napetja niti. Izboljšan prototip sesalca s sesalno pištolo na podtlak prihrani več kot pol energije za dosego primerljive sile napetja kot sesalna pištola na stisnjen zrak. Obenem sesalna šoba na podtlak ne generira vozlov na niti in tako ne doseže potrebne sile za pretrg.

Keywords

magistrske naloge;sesalne pištole;karakteristika sesalne enote;podtlak;sila na nit;tokovne razmere;merilna postaja;

Data

Language: Slovenian
Year of publishing:
Typology: 2.09 - Master's Thesis
Organization: UL FS - Faculty of Mechanical Engineering
Publisher: [R. Sedmak]
UDC: 621.51:62-225:531.78(043.2)
COBISS: 61312771 Link will open in a new window
Views: 662
Downloads: 89
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Other data

Secondary language: English
Secondary title: Optimization of a vacuum suction prototype for polymer filaments
Secondary abstract: During the production process of polymer filaments, it is necessary to manipulate the filaments to start the winding machines and to change the winding bobbin. Compressed air suction guns are used in the industry for this purpose. Due to large losses in the preparation of compressed air, a vacuum suction prototype was developed. In the thesis, we improved and measured the suction characteristics. We determined the operating points of the suction guns and simulated the airflow in each nozzle. We measured the tension force of the thread at the measuring station. An improved vacuum suction prototype with a vacuum suction gun saves more than half the energy to achieve a comparable tension force than a compressed air suction gun. At the same time, the vacuum suction nozzle does not generate knots on the threads and thus does not reach the required force to tear filaments away from the bobbin.
Secondary keywords: master thesis;suction gun;suction motor characteristics;vacuum;tension force of the thread;fluid flow characteristics;measuring station;
Type (COBISS): Master's thesis/paper
Study programme: 0
Embargo end date (OpenAIRE): 1970-01-01
Thesis comment: Univ. Ljubljana, Fak. za strojništvo
Pages: XXII, 55 str.
ID: 12708624
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