苎麻纯落麻转杯纺分梳元件的研究 第二报:分梳辊主要工艺参数的优化设计  

COMBING ELEMENT FOR SPINNING PURE RAMIE NOIL ROTOR-SPUN YARNS Part 2 Optimum Design of Main Technological Parameters of Combing Roller

作　　者：林廷坤[1] 黄秀宝[2] 

机构地区：[1]中国纺织大学纺织工程一系棉纺研究室 [2]中国纺织大学

出　　处：《中国纺织大学学报》1992年第6期22-28,共7页Journal of China Textile University

摘　　要：本文报道了纺制(98.4～45.4tex)(6～13Ne)苎麻纯落麻转杯纱时,分梳辊转速的优化设计。文章首先利用二次通用旋转组合设计求取纺纱细度、分梳辊转速二个变量因子与衡量指标之间的高精度回归方程,进而绘制并分析相应指标的二维等高线图;其次,利用目标规划法建立优化数学模型,并采用随机方向搜索法进行求解;最后,对求得的最优解进行验证试验。研究结果表明,不同纺纱细度下,在5000～9150r/min范围内分梳辊转速对纺纱稳定性没有显著影响,而对转杯纤维环中超、倍长纤维含量及成纱质量有较大影响;在98.4～45.4tex纺纱细度范围内,SAQ-12型锯齿辊转速为7075r/min时,转杯纤维环中超、倍长纤维含量较少,纺纱稳定性及成纱质量较好。This paper reports the optimum design of combing roller speed with reference to yielding 98.4～45.4 rex (6～13 Ne) pure ramie noil rotor-spun yarns. The central rotatable experimental designs of Box and Hunter are adopted to get the regression equations with high precision in which the variables are main technological parameters of combing roller (combing roller speed and yarn linear density), the responses being the measuring indexes (spinning stability, fiber length distribution of fiber ring and yarn properties). The contours based on these regression equations are plotted to analyse the influences of the parameters on the measuring indexes. Meanwhile, the multi-objective mathematical pattern for optimizing the parameters is established, and then the optimum values are obtained through the random-searching method. Finally, acceptance test is carried out for the optimum values. It is shown that, for any yarn linear density considered here, combing roller speed varying from 5000 to 9150 r/min affects content of extra long fiber in fiber ring and yarn properties but does not significantly influence spinning stability. When spinning 98.4～45.4 tex pure ramie noil yarns, 7075 r/min, at which the SAQ-12 type wire combing roller runs, achieves a compromise among low amount of extra long fiber in fiber ring, good spinning stability and yarn properties.

关 键 词：苎麻 分梳辊 转杯纺 工艺参数 

分 类 号：TS103.271[轻工技术与工程—纺织工程]