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EXPERIMENTAL RESEARCH ON THE IMPACT FORCE NEEDLE - CAM - YARN

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Author(s): CrinaTiron | Crina Buhai | Teodor C. Sava | Gabriela Böhm | Costea Budulan

Journal: Annals of the University of Oradea. Fascicle of Textiles, Leatherwork
ISSN 1843-813X

Volume: XII;
Issue: 1;
Start page: 204;
Date: 2011;
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Keywords: impact | force | needle | cam | yarn

ABSTRACT
Research on and about the circular knitting machines with small diameter have developed spectacularly in recents years. In this paper we are exposed to new research on the impact force needle - cam –yarn for the small diameter knitting machine, Ange with Ø[3.75”] , K [14 E], 0- 300 n/rot/min.It is necessary to to extend the service life of pieces of the machines and improve the technology of production of knits for reduce dynamic effects. [1]The present research aims to measure the impact forces on the needle-cam-yarn system during the linear movement of the profile stitch cam. Have been investigated three different cam angles (40 ˚, 50 ˚, 55 ˚) and made measurements for two working speeds.Impact force measurements were made in two cases with and without knitting yarn. Was found due to yarn of knitting voltage influence on the force of impact is negligible, being decisive cam angles and speed of the machine.
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