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全部资讯   / 针织竹节纱在细纱机长车上的开发运用

针织竹节纱在细纱机长车上的开发运用

2022-09-14 08:40:56

<section data-role="outer" class="article135" label="edit by 135editor"><section data-id="us158593" style="margin: 0px 0px 24px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; border-width: 0px; border-style: none; border-color: currentcolor; visibility: visible; font-family: 微软雅黑; overflow-wrap: break-word !important;" class="_135editor"><section label="Powered by 135editor.com" style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; visibility: visible; overflow-wrap: break-word !important;"><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; line-height: 2em; visibility: visible; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(53, 53, 53); letter-spacing: 0px; visibility: visible; overflow-wrap: break-word !important;">针织用竹节纱线作为一种花式纱,其纱线结构不同于普通针织用纱。由于其结构性的改变,用于本色针织纱的质量检测项目有些可以作为竹节纱的检验内容,但在指标上有明显差异,如重量偏差,强力重量CV值,强力CV值等。有些项目则可以作为评判竹节参数准确与否的参考。如条干均匀度波谱图。纺好针织用竹节纱的主要技术措施。&nbsp;</span></p></section></section><section class="_135editor" data-role="list"><ul class="list-paddingleft-2" style="list-style-type: square; margin-bottom: 0px; padding-left: 30px;"><li><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; line-height: 2em; visibility: visible; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(53, 53, 53); letter-spacing: 0px; visibility: visible; overflow-wrap: break-word !important;">根据纺制竹节纱的基本要求和质量特性分析。首先要保证细纱机处于良好状态。对于欠伸结构,要保证加压稳定,皮辊、皮圈、上肖无打顿,对于卷绕加捻系统必须做到钢领、锭子、导纱钩三同心一垂线,尽可能降低卷绕过程中的张力波动,减少细纱断头。要加强锭盘、锭带的维护保养,以降低机械因素造成的捻度差异。针织用竹节纱的纺纱工艺与普通织纱纺纱工艺的不同点,主要在后区欠伸、速度、钢丝圈配置,细纱隔距块上。针织用竹节纱在细纱纺纱过程中影响生产效率和可纺性能的主要因素是竹节参数的变化,即节粗、节长和节距。</span></p></li></ul></section><p style="margin-bottom: 24px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; letter-spacing: 0.544px; text-align: justify; font-size: 16px; color: rgb(62, 62, 62); line-height: 25.6px; visibility: visible; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify"><br></p><section class="_135editor" data-role="list"><ul class="list-paddingleft-2" style="list-style-type: square; margin-bottom: 0px; padding-left: 30px;"><li><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; line-height: 2em; visibility: visible; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(53, 53, 53); letter-spacing: 0px; visibility: visible; overflow-wrap: break-word !important;">竹节纱捻度设计以基纱为基础,再根据竹节的长短、粗度的大小、棉花配棉的好坏差异来定捻度。机织物捻系数一般控制在380以上。针织物捻系数一般控制在340-360左右。在竹节与基纱的过度部分将节形尽量调节的缓和一点,这样既有利于加捻也有利于强力的增加。</span></p></li></ul></section><p style="margin-bottom: 24px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; letter-spacing: 0.544px; text-align: justify; font-size: 16px; color: rgb(62, 62, 62); line-height: 25.6px; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify"><br></p><section class="_135editor" data-role="list"><ul class="list-paddingleft-2" style="list-style-type: square; margin-bottom: 0px; padding-left: 30px;"><li><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; line-height: 2em; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(53, 53, 53); letter-spacing: 0px; overflow-wrap: break-word !important;">确定细纱纺纱工艺的主要参数时,对细纱机前罗拉速度、钢丝圈选配、隔距块的选配对纺纱的断头影响甚大,应该作为纺纱工艺中的重点工作,并落实专人根据生产情况及时调整。</span></p></li></ul></section><p style="margin-bottom: 24px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; letter-spacing: 0.544px; text-align: justify; font-size: 16px; color: rgb(62, 62, 62); line-height: 25.6px; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify"><br></p><section class="_135editor" data-role="list"><ul class="list-paddingleft-2" style="list-style-type: square; margin-bottom: 0px; padding-left: 30px;"><li><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; line-height: 2em; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(53, 53, 53); letter-spacing: 0px; overflow-wrap: break-word !important;">由于针织用竹节纱的气圈形态动态变化频繁,钢丝圈对钢领的运行轨迹也不同于普通针织,因而钢领的磨损不同于纺制普通针织纱。应加强对钢领的检查和保养更换,防止因钢领严重衰退而造成的细纱机大面积断头现象。</span></p></li></ul></section><p style="margin-bottom: 24px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; letter-spacing: 0.544px; text-align: justify; font-size: 16px; color: rgb(62, 62, 62); line-height: 25.6px; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify"><br></p><section class="_135editor" data-role="list"><ul class="list-paddingleft-2" style="list-style-type: square; margin-bottom: 0px; padding-left: 30px;"><li><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; line-height: 2em; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(53, 53, 53); letter-spacing: 0px; overflow-wrap: break-word !important;">根据针织设备的特点,在确定竹节纱工艺参数时应当注意竹节形态的选择,无特殊要求,应选用笔尖型,以减少竹节纱通过针眼时产生刮毛甚至断头。&nbsp;</span></p></li></ul></section><p style="margin-bottom: 24px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; letter-spacing: 0.544px; text-align: justify; font-size: 16px; color: rgb(62, 62, 62); line-height: 25.6px; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify"><br></p><section class="_135editor" data-role="list"><ul class="list-paddingleft-2" style="list-style-type: square; margin-bottom: 0px; padding-left: 30px;"><li><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; line-height: 2em; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(53, 53, 53); letter-spacing: 0px; overflow-wrap: break-word !important;">生产实践证明,影响竹节纱强力不匀的因素,远比纺普通平纱复杂得多。除纺普通平纱影响强力不匀的因素外,竹节纱有瞬时加、减速所引起的各种现象。如伺服电机与中后罗拉功率平衡及速度比例同步等问题。根据经验,纺制竹节纱的车速比普通平纱要低5%-10%,捻度高5%-10%。目的是改善竹节纱强力,降低断头率。如果粗纱捻度适当加些、粗纱定量及细纱牵伸倍数适当降些,使伺服电机变速和细纱牵伸更可靠,这一加一降的目的,也是为了改善竹节纱强力不匀,进一步减少细纱断头,使竹节纱风格更符合工艺设计。</span></p></li></ul></section><p style="margin-bottom: 24px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; letter-spacing: 0.544px; text-align: justify; font-size: 16px; color: rgb(62, 62, 62); line-height: 25.6px; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify"><br></p><section class="_135editor" data-role="list"><ul class="list-paddingleft-2" style="list-style-type: square; margin-bottom: 0px; padding-left: 30px;"><li><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; line-height: 2em; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(53, 53, 53); letter-spacing: 0px; overflow-wrap: break-word !important;">在络筒时,为了进一步提高质量,减少织造过程中的纱疵断头,可以采用电子清砂器,对于大于节粗参数的“粗竹节”予以有效切除。而正常的竹节则予以保留。</span></p></li></ul></section><section class="_135editor" data-role="paragraph"><p><br></p></section></section>

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