Study on Licker-In and Flat Speeds of Carding Machine and Its Effects on Quality of Cotton Spinning Process

Spinning has a significant influence on all textile processes. Combinations of all the capital equipment display the process’ critical condition. By transforming unprocessed fibers into carded sliver and yarn, the carding machine serves a critical role in the textile industry. The carding machine’s licker-in and flat speeds are crucial operational factors that have a big influence on the finished goods’ quality. The purpose of this study is to examine the link between licker-in and flat speeds and how they affect the yarn and carded sliver quality. A thorough experimental examination on a carding machine was carried out to accomplish this. The carded sliver and yarn produced after experimenting with different licker-in and flat speed combinations were assessed for important quality factors including evenness, strength, and flaws. To account for changes in material qualities and machine settings, the study also took into consideration the impact of various fiber kinds and processing circumstances. The findings of the investigation showed a direct relationship between the quality of the carded sliver and yarn and the licker-in and flat speeds. Within a limited range, greater licker-in speeds were shown to increase carding efficiency and decrease fiber tangling. On the other hand, extremely high speeds led to more fiber breakage and neps. Higher flat speeds, on the other hand, helped to enhance fiber alignment, which increased the evenness and strength of the carded sliver and yarn. Additionally, it was discovered that the ideal blend of licker-in and flat rates varied based on the fiber type and processing circumstances. When being carded, various fibers displayed distinctive behaviors that necessitated adjusting the operating settings in order to provide the necessary quality results. The study also determined the crucial speed ratios between the licker-in and flat speeds that reduced fiber breakage and increased the caliber of the finished goods. The results of this study offer useful information for textile producers and process engineers to improve the quality of carded sliver and yarn while maximizing the performance of carding machines. Operators may choose machine settings and parameter adjustments wisely by knowing the impacts of licker-in and flat speeds, which will increase textile industry efficiency, productivity, and product quality.

Study on Licker-In and Flat Speeds of Carding Machine and Its Effects on Quality of Cotton Spinning Process

Spinning has a significant influence on all textile processes. Combinations of all the capital equipment display the process’ critical condition. By transforming unprocessed fibers into carded sliver and yarn, the carding machine serves a critical role in the textile industry. The carding machine’s licker-in and flat speeds are crucial operational factors that have a big influence on the finished goods’ quality. The purpose of this study is to examine the link between licker-in and flat speeds and how they affect the yarn and carded sliver quality. A thorough experimental examination on a carding machine was carried out to accomplish this. The carded sliver and yarn produced after experimenting with different licker-in and flat speed combinations were assessed for important quality factors including evenness, strength, and flaws. To account for changes in material qualities and machine settings, the study also took into consideration the impact of various fiber kinds and processing circumstances. The findings of the investigation showed a direct relationship between the quality of the carded sliver and yarn and the licker-in and flat speeds. Within a limited range, greater licker-in speeds were shown to increase carding efficiency and decrease fiber tangling. On the other hand, extremely high speeds led to more fiber breakage and neps. Higher flat speeds, on the other hand, helped to enhance fiber alignment, which increased the evenness and strength of the carded sliver and yarn. Additionally, it was discovered that the ideal blend of licker-in and flat rates varied based on the fiber type and processing circumstances. When being carded, various fibers displayed distinctive behaviors that necessitated adjusting the operating settings in order to provide the necessary quality results. The study also determined the crucial speed ratios between the licker-in and flat speeds that reduced fiber breakage and increased the caliber of the finished goods. The results of this study offer useful information for textile producers and process engineers to improve the quality of carded sliver and yarn while maximizing the performance of carding machines. Operators may choose machine settings and parameter adjustments wisely by knowing the impacts of licker-in and flat speeds, which will increase textile industry efficiency, productivity, and product quality.

精梳质量控制与减少成纱纱疵的技术措施

为减少细小纱疵和偶发性纱疵,总结了精梳质量控制与减少成纱纱疵的技术措施。影响细小纱疵的主要因素是原料品质和精梳质量。重点分析了精梳锡林齿密、精梳梳理隔距、锡林针布状态、顶梳针齿嵌花等对成纱质量的影响。试验结果表明:采用加密新型锡林,特细号精梳纱纱疵明显减少;锡林、顶梳严重嵌花会使精梳落棉率大幅增加;适当缩小锡林梳理隔距,保证纤维分离、伸直和平行,可以改善成纱质量。同时,总结了减少偶发性纱疵的技术措施。认为:减少细小纱疵的关键在于精梳的梳理质量,核心在锡林针布;提高精梳设备和运转操作技术水平,严格执行清洁操作标准,加强车间温湿度调控,是减少突发性纱疵的有效方法。

梳棉机后罩板棉网清洁器位置与纺纱质量

在梳棉机后罩板处加装了两根固定盖板 ,并分别在固定盖板前与后加装棉网清洁器 ,在相同工艺条件下进行了纺纱对比试验。结果表明 ,在固定盖板后加装棉网清洁器 ,经AFIS仪检测生条质量指标较好 ;在固定盖板前加棉网清洁器 ,成纱质量较好。经综合分析 ,棉网清洁器以安装在固定盖板前为好。

梳棉机棉网清洁器导板长度的探讨

在梳棉机后罩板处加装后固定盖板 ,在固定盖板前加装棉网清洁器 ,选择导板长度分别为 2 5mm、6 0mm、95mm三种棉网清洁器 ,在其他条件不变条件下 ,进行了纺纱对比试验。试验结果表明 ,导板长度并不是越长越有利于成纱质量的改善 ,在本试验条件下 ,导板以 2 5mm长度对成纱质量提高较为有利。

梳棉生条质量与纱线质量关系的研究

为研究梳棉生条质量与纱线质量的关系,通过试验并用灰色关联分析法和最小二乘法分析了梳棉生条各参数对纱线质量指标的影响程度,得出了生条各参数对纱线品质影响的具体关系式。便于在实际生产加工中及时调整梳棉工艺,稳定和提高纱线质量。

梳棉机后罩板处加棉网清洁器的试验研究

在相同工艺条件下进行了在梳棉机后罩板处单独加装一组棉网清洁器与后罩板不变、单独加固定盖板的对比试验.试验结果表明:在一定风量条件下,单独加棉网清洁器对提高成纱质量有一定效果,与后罩板不变相比条干CV值减少0.5个百分点～0.7个百分点,细节下降33.3%～44.4%,粗节下降16%～24.5%,棉结下降19.6%～29.3%,强力CV也有一定改善(在双侧吸风时);如风量得当,单独加棉网清洁器可起到与加固定盖板相同的作用.

FA201型梳棉机工艺参数的优化

为了优化梳棉工艺、提高除杂效率、改善生条质量 ,对FA2 0 1型梳棉机进行了二因子二水平的正交对比试验 ,得出了该机型较合理的道夫速度、生条定量、锡林盖板隔距等工艺参数。实践证明采用这些优化参数后生条品质和成纱质量都有所提高。

清梳联生产特细号纱的实践

为了探讨清梳联纺长绒棉的纺纱工艺,以CJ 7.3 tex为例,从原棉的选择、清梳联流程的配置以及工艺参数的设计等方面进行了分析。并通过试验测试了清梳半成品质量和成纱质量,进而阐述了清梳联设备的管理和清梳联高效率、低成本生产优质特细号高档纱的体会。

短流程清梳联的应用体会

通过对清梳联纺精梳纱时提高产量前后成纱质量的对比分析,指出短流程清梳联生产中要注重梳棉机针布型号的选择,主要单机除杂效率的提高以及系统工艺研究。

赛络纺蚕蛹蛋白涤纶棉混纺纱的生产

探讨蚕蛹蛋白赛络混纺纱的生产工艺。针对蚕蛹蛋白纤维特点,通过采用条混工艺以保证准确的混纺比,并合理配置各工序工艺参数。

梳棉机棉网清洁器研究的现状及其展望

从(1)棉网清洁器的组成形式;(2)棉网清洁器的特殊形式;(3)棉网清洁器的风量;(4)棉网清洁器中导板长度;(5)棉网清洁器有关工艺参数的确定;(6)棉网清洁器的效果等几个方面对棉网清洁器研究现状进行了述评,并提出了棉网清洁器进一步研究的设想。

提高R14.8 tex转杯针织纱生产效率的措施

探讨影响转杯纺针织纱生产效率的因素。分析了转杯速度、工艺部件型号、前纺工艺、原料产地和基础性管理等因素对生产效率的影响,通过优选,最终使R 14.8tex转杯针织纱生产效率和产量得到大幅提高。认为:通过优选转杯、阻捻头和分梳辊针布环等关键工艺部件,保证原料产地和性能的一致性,有针对性地调整前纺工艺,合理设计纱线捻度,做好基础性管理等工作,可以有效提高R 14.8tex转杯纺针织纱的生产效率。

关键纺纱器材与成纱质量关系探讨

阐述了关键纺纱器材对提高成纱质量的重要性,认为新型纺纱器材与工艺优化的结合,会起到提升纱线质量的重要作用,文章结合生产实践,对梳理器材、牵伸器材、卷绕器材分类进行了讨论。

A186C型梳棉机安装附加分梳件的研究

介绍了A186C型梳棉机附加分梳件的齿形与结构、测试与分析、使用与维护等情况 ,提出梳棉机不同部位安装附加分梳件有其各自的作用 :刺辊预分梳板有效提高棉束分离度 ,锡林后固定盖板对棉束进行预梳理 ,而锡林前固定盖板则是对梳理区的纤维层进行补充梳理 ,改善棉网内在质量。

CJ4.9 tex纱清梳工序棉结杂质的控制

影响特细号纱棉结杂质的因素较多,缩短开清棉工艺流程,有利于减少对纤维的损伤、减少开清工序的棉结和短绒。采用优化清梳工序各主要工艺参数,优选分梳元件等措施可以降低结杂,同时要求车间空气净化程度较高,并合理控制温湿度。

竹浆氨纶包芯纱的纺制体会

为开发竹浆氨纶包芯纱,针对竹浆纤维原料性能特点,对各工序生产工艺配置进行优选,并采取了提高质量的各项技术措施。通过调整清梳工艺严格控制梳棉棉网质量,并条合理配置牵伸工艺,适当增大粗纱捻系数,细纱选择合理的氨纶丝预牵伸倍数、捻度和速度,络筒选用喷雾式捻接器,提高捻接质量,并认真做好设备整顿、操作卡疵和接头工作,使竹浆氨纶包芯纱得以顺利生产,成纱质量满足了使用要求。

短流程清梳联合机应用实践

介绍了短流程清梳联合机的单机性能特点,在转杯纺纱工艺流程中的应用表明,短流程清梳联合机故障率低,生条质量好,生产稳定,转杯纱质量达到Uster公报25%水平和国家标准优等纱以上的水平。

针布配置对梳理质量影响的探讨

为了提高生条和成纱质量,分析了纺纱原料特性对梳理配置的要求,重点对比了进口格拉夫公司针布与国产金轮针布及金轮针布与国内某厂针布的配置调整对生条和成纱质量的影响并绘制出相应曲线,分析了生条质量提高的原因。指出:不同原料纤维对生条质量影响较大,其特性不同对梳理配置的要求也不同;虽然提高针布梳理度与针布配置密切相关,但其与针布状态、上车工艺、车间温湿度的关系也应重视;应进行多组试验,并对其结果进行跟踪,以确定最佳针布配置。合理配置针布是提高生条和成纱质量的保证。

梳棉机带吸风装置的后固定盖板系统对成纱质量的影响

在下列条件下对A186F梳棉机进行了对比试验:梳棉机原有状态不变;梳棉机后罩板加装带有吸风装置的后固定盖板系统,单侧吸风;梳棉机后罩板加装带有吸风装置的后固定盖板系统,双侧吸风。试验表明:加装带有吸风装置的后固定盖板系统对生条含杂和异物率改善有一定效果;在单侧吸风时对成纱质量改善不大,而双侧吸风时改善较为明显。