MONITORING DIAGNOSTIC INDICATORS DURING OPERATION OF A PRINT MACHIN
 
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Faculty of Manufacturing Technologies with a seat in Prešov, Technical University of Košice, Štúrova 31, 080 01 Prešov, Slovak Republic
Publish date: 2015-11-27
 
Adv. Sci. Technol. Res. J. 2015; 9(28):34–39
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ABSTRACT
This article deals with monitoring diagnostic indicators during the operation of a machine used for production of packing materials with a print. It analyses low-frequency vibrations measured in individual spherical roller bearings in eight print positions. The rollers in these positions have a different pressure based on positioning these rollers in relation to the central roller. As a result, the article also deals with a correlation of pressure and level of measured low-frequency vibrations. The speed of the print machine (the speed of a line in meters per minute) is a very important variable during its operation, this is why it is important to verify the values of vibrations in various speeds of the line, what can lead to revelation of one or more resonance areas. Moreover, it examines vibrations of the central roller drive and measurement of backlash of transmission cogs of this drive. Based on performed analyses recommendations for an operator of the machine have been conceived.
 
REFERENCES (8)
1. Nataraj C. Vibration of mechanical systems. Lightning Source, Hampshire 2011.
2. Valent O., Galád M., Kačmár Ľ. Technical diagnostics, vol. 1. Condition monitoring and maintenance systems, p. 43.
3. Stejskal T., Kováč J., Valenčík Š. Mechanism of randomness in vibration signals of machinery. Applied Mechanics and Materials, 282, 2013, 257–262.
4. Šebo J., Buša J., Demeč P., Svetlík J., Optimal replacement time estimation for machines and equipment based on cost function. Metalurgija, 52(1), 2013, 119–122.
5. Panda A., Prislupčák M. Analysis of technological factors. Studia i materialy, 34(1), 2014, 13–16.
6. Michalik P., Zajac J., Hatala M., Hutyrová Z., Mitaľ D., Olhova J. Comparison measurement of the distance between axes of holes with the roundtest RA-120 and Thome Präzision-Rapid. Applied Mechanics and Materials, 616, 2014, 284–291.
7. Greškovič F., Dulebová Ľ., Duleba B., Sikora J.W. Evaluation of process wear of selected tool steels for injection molds. Advanced Materials Research 739, 2013, 171–176.
8. Sobotka J., Solfronk P., Doubek P. Using contact-less optical systems to characterize and measure deformation of TWIP materials. Physics Procedia, 22, 2011, 2–7.