一般有三个方面的原因：一、影响盖板花的相关工艺差异过大,如上罩板的高低位置、盖板速度、上罩板上口与锡林隔距等。二、针布规格型号的差异造成了针布对纤维握持能力的差异。三、针布磨损状态的差异导致盖板花率不一致。
Generally, there are three reasons: 1. There are too many differences in the related processes affecting the cover flower, such as the high and low position of the upper cover plate, the speed of the cover plate, the gap between the top cover plate and Cylinder, etc. 2. The difference of the size and type of card clothing results in the difference of the ability of the card clothing to hold the fibers. 3. The discrepancy of wear state of card clothing leads to the discrepancy of cover pattern.
发现盖板花出现异常时,首先要做的是核查工艺上机情况、针布规格型号和磨损状态,有针对性地调整工艺参数、调换针布或进行磨针。梳棉工序在带轮和工艺齿轮统一的前提下,以生条结杂、短绒率和条干等指标为依据,参照针布配置、设备状态和针布状态,采用不同的工艺配置,确保盖板花率基本一致,从而将生条质量台差控制在标准范围之内。
When discovering the abnormal cover pattern, the first thing to do is to check the process on the machine, the size and type of card clothing and wear state, adjust the process parameters, change the card clothing or grind needles. Under the premise of the unification of pulley and process gear, carding process is based on the index of strand knotting, short fibre rate and evenness, referring to the card clothing configuration, equipment status and card clothing status, adopting different process configuration to ensure the basic consistency of cover plate flower rate, thus controlling the quality table error of card sliver within the standard range.