细纱机后区牵伸形式分析与工艺优化

Draft Style Analysis and Process Optimization of Spinning Machine in Back Zone

探讨细纱机几种后区牵伸形式的特点及工艺优化配置。介绍了简单罗拉直线牵伸形式、V形曲线牵伸形式、V形曲线牵伸加控制辊牵伸形式和双胶圈牵伸形式等4种细纱后区形式性能特点。结合生产实践,对V形曲线牵伸加控制辊后区牵伸形式、双胶圈后区牵伸形式的工艺配置进行了优化试验。认为:V形曲线牵伸加控制辊后区牵伸形式、双胶圈后区牵伸形式对改善成纱条干和常发性纱疵,提高细纱牵伸能力具有较好的效果。

Properties, process optimization and configuration of several kinds of draft styles in spinning back zone were discussed. Properties of four kinds of spinning back zone style including single roller draft in straight line, V shape curve draft, V shape curve draft plus control roller draft and double rubber-covered roller draft were introduced. Combination with production practice, optimization experiments were proceeded with process configuration of V shape curve draft plus control roller draft and double rubber-covered roller draft. It is considered that V shape curve draft plus control roller draft and double rubber-covered roller draft have better effect on improving yarn evenness and common yarn defect, increasing draft ability of spinning process.