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全部资讯   / 转杯纺又产生纱疵了?“病”因都在这了!

转杯纺又产生纱疵了?“病”因都在这了!

2022-07-26 08:34:03

<section data-role="outer" class="article135" label="edit by 135editor"><section class="_135editor" data-tools="135编辑器" data-id="115894"><section style="margin: 20px auto;"><section><section><section style="display: flex; justify-content: flex-start; padding-left: 40px;"><section style="padding: 0px 6px;"><section class="assistant" style="width: 20px;"><img class="assistant" style="vertical-align: inherit; width: 100%; display: block; max-width: 100% !important;" src="https://bcn.135editor.com/files/images/editor_styles/5562b96c5b020308562c49d70a9ef3ad.png" data-width="100%" draggable="false"></section></section></section><section style="width: 100%; height: 1px; background-color: rgb(102, 102, 102); margin-top: -10px; overflow: hidden; max-width: 100% !important;" data-width="100%"></section></section><section style="padding: 30px 15px;"><section data-autoskip="1" class="135brush" style="text-align: justify; line-height: 1.75em; letter-spacing: 1.5px; color: rgb(51, 51, 51); background: transparent;"><span style="font-size: 16px;">转杯纱纱疵产生的原因除原料、喂入品质量、工艺配置外,主要与设备的运转状态;操作、维修、管理及车间温湿度等因素有关,现分述如下。</span></section></section><section style="width: 100%; height: 1px; background-color: rgb(102, 102, 102); overflow: hidden; max-width: 100% !important;" data-width="100%"></section></section></section></section><p><br></p><section class="_135editor" data-role="title" data-tools="135编辑器" data-id="115557"><section style="margin: 20px auto;"><section style="display:flex;justify-content: center;"><section><section style="display: flex; justify-content: flex-start; border-bottom: 1px solid rgb(225, 206, 170);"><section class="assistant" style="width: 40px; height: auto;" width="40px" data-width="40px"><img class="assistant" style="vertical-align: inherit; width: 100%; display: block; max-width: 100% !important;" src="https://bcn.135editor.com/files/images/editor_styles/78b6f5e8a799ca8fd59e12f2755bc11c.png" data-width="100%" title="四角星拷贝拷贝2.png" alt="" draggable="false"></section><section style="text-align: center; font-size: 18px; letter-spacing: 1.5px; padding: 6px 20px 3px 10px; color: rgb(26, 149, 185);" hm_fix="293:601"><strong class="135brush" data-brushtype="text">设备机械状态与纱疵</strong></section></section><section style="display: flex;justify-content: flex-end;"><section class="assistant" style="width: 55%; height: 4px; background: rgb(225, 206, 170); margin-top: -4px; overflow: hidden; max-width: 55% !important;" data-width="55%"></section></section></section></section></section></section><p><br></p><p>设备机械状态不良是产生纱疵及成形不良的主要原因。</p><p><br>(1)成纱的粗细节纱疵主要为喂入部分状态不良所致,其机械原因主要有喂给喇叭损坏,喂给罗拉积花,轴承损坏、轧煞、打顿,离合器间隔不当,齿轮磨损等。</p><p><br>(2)成纱中的竹节纱疵与分梳辊状态不良有关,如分梳辊锯齿毛剌、倒齿、断齿绕花,转速过慢、辊轴运转呆滞,与罩壳间隙不当等。当纺杯与密封盖间隙过大,纺杯凝聚槽毛刺挂花时,也会产生竹节纱。</p><p><br>(3)成纱弱捻主要与纺杯等加捻元件有关,如纺纱器未锁紧而发生漏气或密封圈失效,纺杯压轮压入量过小或转动不灵活致使纺杯转动打滑,纺杯负压低,龙带损坏等都会造成弱捻纱。</p><p><br>(4)当阻捻头、引纱管、导纱器等机件损坏起毛时,必然会与纱条摩擦而拉毛纱线形成毛羽纱。</p><p><br>(5)当排杂部分状态不良时,会产生棉结杂质密集的芝麻纱。如分梳辊锯齿磨损影响杂质的清除;排杂孔堵塞、排杂腔积杂;工艺排风堵塞时杂质排不出去等。特别是自排风式转杯纺纱机,当工艺排风不畅时会使车头部分的若干锭子严重断头,难以开车。当硬杂质嵌入纺杯凝聚槽时,还会造成纱线的规律性不匀及强力不匀。</p><p><br>(6)筒子成形不良主要由引纱卷绕部分状态不良所致,如引纱皮辊起槽、加压不当,张力牵伸过大或过小,导纱器损坏等。</p><p><br></p><section class="_135editor" data-role="title" data-tools="135编辑器" data-id="115557"><section style="margin: 20px auto;"><section style="display:flex;justify-content: center;"><section><section style="display: flex; justify-content: flex-start; border-bottom: 1px solid rgb(225, 206, 170);"><section class="assistant" style="width: 40px; height: auto;" width="40px" data-width="40px"><img class="assistant" style="vertical-align: inherit; width: 100%; display: block; max-width: 100% !important;" src="https://bcn.135editor.com/files/images/editor_styles/78b6f5e8a799ca8fd59e12f2755bc11c.png" data-width="100%" title="四角星拷贝拷贝2.png" alt="" draggable="false"></section><section style="text-align: center; font-size: 18px; letter-spacing: 1.5px; padding: 6px 20px 3px 10px; color: rgb(26, 149, 185);"><strong class="135brush" data-brushtype="text" hm_fix="333:580">运转操作与纱疵</strong></section></section><section style="display: flex;justify-content: flex-end;"><section class="assistant" style="width: 55%; height: 4px; background: rgb(225, 206, 170); margin-top: -4px; overflow: hidden; max-width: 55% !important;" data-width="55%"><br></section></section></section></section></section></section><p><br>转杯纱的许多纱疵是由于值车工的运转操作不当而造成的。</p><p><br>(1)接头时带入飞花,回丝,棉条接头包卷不良等都会在成纱中形成粗节、细节或竹节纱。</p><p><br>(2)接头时纺杯清扫不彻底(自排风式),断头后长时间不接;采用油手接头,接头时带入油污疵点;筒子落地、容器不清洁等会污染纱线,造成黑灰纱和油污纱。</p><p><br>(3)值车时新旧棉条混用或棉条错用,喂入棉条破条,将会造成色差或筒子成纱特数与规格不符。</p><p><br></p><section class="_135editor" data-role="title" data-tools="135编辑器" data-id="115557"><section style="margin: 20px auto;"><section style="display:flex;justify-content: center;"><section><section style="display: flex; justify-content: flex-start; border-bottom: 1px solid rgb(225, 206, 170);"><section class="assistant" style="width: 40px; height: auto;" width="40px" data-width="40px"><img class="assistant" style="vertical-align: inherit; width: 100%; display: block; max-width: 100% !important;" src="https://bcn.135editor.com/files/images/editor_styles/78b6f5e8a799ca8fd59e12f2755bc11c.png" data-width="100%" title="四角星拷贝拷贝2.png" alt="" draggable="false"></section><section style="text-align: center; font-size: 18px; letter-spacing: 1.5px; padding: 6px 20px 3px 10px; color: rgb(26, 149, 185);"><strong class="135brush" data-brushtype="text" hm_fix="328:584">维修保养与纱疵</strong></section></section><section style="display: flex;justify-content: flex-end;"><section class="assistant" style="width: 55%; height: 4px; background: rgb(225, 206, 170); margin-top: -4px; overflow: hidden; max-width: 55% !important;" data-width="55%"></section></section></section></section></section></section><p><br></p><p>&nbsp;维修工作的质量好坏,也直接影响成纱纱疵的多少。</p><p><br>(1)喂给板加压过重或过轻,会使棉条分层而产生意外牵伸,造成成纱重量不匀率增加。</p><p><br>(2)喂给喇叭安装不当,集体生头时喂给罗拉过早给棉,都会造成成纱的粗节或细节。</p><p><br>(3)隔离盘安装不当,纺杯清扫周期不当或清扫不彻底,会造成纱条干不匀和形成黑灰纱。阻捻头用错时,成纱会因捻度不匀而形成色差或造成毛羽纱。</p><p><br></p><section class="_135editor" data-role="title" data-tools="135编辑器" data-id="115557"><section style="margin: 20px auto;"><section style="display:flex;justify-content: center;"><section><section style="display: flex; justify-content: flex-start; border-bottom: 1px solid rgb(225, 206, 170);"><section class="assistant" style="width: 40px; height: auto;" width="40px" data-width="40px"><img class="assistant" style="vertical-align: inherit; width: 100%; display: block; max-width: 100% !important;" src="https://bcn.135editor.com/files/images/editor_styles/78b6f5e8a799ca8fd59e12f2755bc11c.png" data-width="100%" title="四角星拷贝拷贝2.png" alt="" draggable="false" data-ratio="1.1125" data-w="80"></section><section style="text-align: center; font-size: 18px; letter-spacing: 1.5px; padding: 6px 20px 3px 10px; color: rgb(26, 149, 185);"><strong class="135brush" data-brushtype="text" hm_fix="333:584">工作环境与纱疵</strong></section></section><section style="display: flex;justify-content: flex-end;"><section class="assistant" style="width: 55%; height: 4px; background: rgb(225, 206, 170); margin-top: -4px; overflow: hidden; max-width: 55% !important;" data-width="55%"></section></section></section></section></section></section><p><br></p><p>车间工作环境包括两个方面,即车间空气含尘量和车间温湿度。二者都与成纱纱疵有一定的关系。</p><p><br>(1)车间含尘量直接影响转杯纱的纱疵,若车间尘埃较多时,尘埃(包括5mm以下的短绒)会随大量空气被吸入纺纱器。在纱道通路上累积到一定程度时,会产生粗细节,形成竹节纱疵和煤灰纱。因此减小转杯纺车间含尘量是提高成纱质量,减少纱疵的重要措施。减小车间空气含尘浓度,应从两个方面入手,一是将转杯纺纱机单独设在一个车间,与前纺尘杂排出较大的车间隔开,二是减少自身尘源的产生,即加大排杂吸风量和工艺排风量,防止排风管道堵塞,避免尘杂溢出。</p><p><br>(2)车间温湿度对纱疵的影响,当温度在一定范围内时,纱疵比较稳定,但当温湿度超过一定限度时,纱疵呈上升的趋势,所以转杯纺车间温度应控制在28℃,相对湿度控制在60%~70%时较为合适,但由于冬夏季气候的影响不同,其温湿度控制的要求也有所不同,冬季温度应大于20℃,相对湿度在60%~65%,夏季温度应小于30℃,相对湿度在65%~70%。</p><section class="_135editor" data-role="paragraph"><p><br></p></section></section>

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