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Experimental investigation on air-jet loom sub-nozzles for weft yarn insertion

机译:喷气织机子喷嘴插入纬纱的实验研究

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摘要

The analysis of the airflow from sub-nozzles that have different emitting cross-sections is described. At first, tests werencarried out outside the profiled reed and comparison between nozzles was made in terms of air velocity distribution, jetnspreading, consumption and exerted drag force. Subsequently, in order to analyze the interaction between the jetnemitted by a sub-nozzle and the loom profiled reed, some velocity measurements were repeated inside the weft passage,nat various distances from the nozzle exit. Finally, a high-speed camera was used to visualize the weft yarn crossing thenweft passage.
机译:描述了来自具有不同发射横截面的子喷嘴的气流的分析。首先,在异型簧片外进行测试,并根据风速分布,喷射扩展,消耗和施加的阻力对喷嘴之间进行比较。随后,为了分析子喷嘴喷出的气流与织机异形簧片之间的相互作用,在纬纱通道内重复进行了一些速度测量,距离喷嘴出口不同距离。最终,使用高速相机来观察纬纱穿过然后纬纱通道的情况。

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