粗纱张力测试与调整的实践

Practice of Test and Adjusting of Roving Tension

粗纱张力的控制与调整是纺织企业普遍关注的课题。分析了粗纱张力不匀产生的原因及其对粗纱伸长率造成的影响。通过试验测试发现粗纱伸长率对粗纱重量不匀率和条干CV值影响显著,强调了控制粗纱张力的重要性。实践表明,采用测试粗纱伸长率来间接反映粗纱张力的方法较为方便。指出:粗纱伸长率最大不应超过3%,同一机台大小纱之间、前后排之间、同品种不同机台之间粗纱伸长率应控制在1.5%以内。并提出同时应采取调整轴向卷绕密度、确定锥轮皮带起始位置、正确配置张力变换齿轮等具体措施直接对粗纱张力进行工艺调整。

The test and adjusting of roving tension is the main problems in textile enterprise, generating reasons of roving tension unevenness and influence on roving elongation percentage were analyzed. The test shows that the influence of roving elongation percentage on roving weight unevenness and evenness CV is evident, and the control of roving tension is very important. The practice shows that it is convenient for roving tension to test roving elongation percentage. Roving elongation percentage should be controlled below 3%, and in the condition of same machine of big bobbin ＆ middle bobbin ＆ small bobbin and front tier ＆ back tier, and different machine of same variety, the roving elongation percentage should below 1.5% o The concrete measures such as adjusting radial winding density, assuring the starting position of cone drum belt, configuring tension exchange gear reasonably to adjust the roving tension were proposed.