排序方式: 共有45条查询结果,搜索用时 4 毫秒
41.
通过在HXFA299型棉精梳机上进行合理组合,得到4种不同的针面总齿数总和,对不同梳理度下精梳条梳理质量进行了研究。结果表明:锡林的梳理度对精梳条的质量指标有明显的影响,尤其是对棉结数、籽结数和短绒率的影响最为强烈;梳理度并非越大越好,必须结合所加工的品种和使用的纤维情况,通过实验得出最佳梳理度。 相似文献
42.
通过测试涤纶纤维的性能,研究了其制条工艺.试验结果表明梳理机上工作辊与锡林速比、针梳道数、喂入根数和牵伸倍数对涤纶条中的纤维长度、毛粒含量有组合影响. 相似文献
43.
In order to provide manufacturers of carding machines and relevant accessories with theoretical references, how cylinder radius, setover and heel-toe difference affect cylinder-flat gauge of a carding machine was theoretically studied. The relationship between cylinder-flat gauge and cylinder radius, setover and heel-toe difference was geometrically discussed. Numerical calculation and illustration about the relationship were made with MATLAB in accordance with practical settings. A general formula about the relationship is derived. A concept, the small-gauge zone length, has been defined for the first time, and some relevant results thus obtained. Given setover and heel-toe difference, the greater the cylinder radius, the greater the average gauge. If a smaller overall cylinder-flat gauge is desirable, it is not necessary to emphasize the tangential direction of the heel of clothed surface to the cylinder. Their intersection within a small zone is acceptable. In many cases, small-gauge zone can reduce average gauge which may be helpful to the carding action; given cylinder radius and setover, the smaller the heel-toe difference, the more helpful to reduce the overall gauge; given cylinder radius and heel-toe difference, the small-gauge zone length will increase with the increase of setover, so does the difference between the smallest gauge and outlet gauge. 相似文献
44.
本文用信号流图法建立了粗纺梳毛机的梳理模型,推导出评价梳毛机匀整能力的指标幅值剩余系数 A(ω),进一步分析了梳毛机对中长片段和短片段不匀波的匀整能力。在理论分析的基础上,进行了梳理过程的动态计算机仿真取得了与实测比较接近的结果。 相似文献
45.
袁建畅 《西安工程科技学院学报》2000,14(3):251-255
在分析了机械式和气动成卷机成卷压力控制系统的基础上 ,提出了一种采用电液比例控制技术的成卷机控制系统 .它不仅可以提高成卷质量 ,而且可以简化系统设计 ,降低成本 ,是一种有希望的成卷机成卷压力控制系统 . 相似文献