国产细纱机牵伸加压改造及牵伸工艺配置

要进一步提高纺纱质量，满足产品高品质、高档次要求，进行设备更新和技术改造、提高设备性能是关键。通过引进Suessen HP系列加压机构和牵伸元件对国产EJM128K型、FA506型细纱机进行了牵伸机构改造。介绍了HP-A-310型摇架和HP-C型上销的主要特点；分析了针织纱工艺与机织纱工艺的特征、牵伸工艺的可靠性及综合配置问题。指出：机织纱工艺与针织纱工艺的界限在缩小，在先进的牵伸机构条件下，稳定可靠的针织纱工艺将成为发展方向；牵伸工艺应与牵伸机构性能相适应，在确保纱疵稳定、兼顾改善条干质量的条件下，各牵伸工艺参数要合理配置。

Reformation of Domestic Spinning Frame Drafting Weighting and Drafting Processing Disposing

Updating equipment, reforming technical and improving equipment performance are the key to improve spinning quality and fulfill high quality demand of products. Drafting mechanism of domestic EJM128, FA506 spinning frame are reformed by Suessen HP pressure devices and drafting elements. The main characteristics of HP A 310 cradle and HP C top pin are introduced. Characteristics, reliability of drafting processing and synthetic configuration of knitting yarn processing and woven yarn processing are analysed. It shows: the limit of knitting yarn processing and woven yarn processing is reducing now. Stable and reliable knitting yarn processing is the development tendency under the conditions of advanced drafting mechanism. Drafting processing is adapted to drafting mechanism performance, each drafting processing parameters are rational configured under the conditions of ensuring stable yarn defects and improving yarn quality.