基于综框任意升降的随机织物设计方法

Designing method of random fabric based on random lifting of heald frames

为探讨经纬交织无重复规律织物的织造控制方法,以提综开口综框状态的二进制表达为基础,提出基于综框随机升降的随机织物的概念,给出了随机织物的织造控制方法,分析了不同织造控制方法的经纬交织特征。采用织物设计软件对随机织物进行模拟,探讨其可织性。利用打样机织制了小样,对其交织特征进行验证。结果表明:通过综框升降的随机控制,可织制无规律、不循环的随机织物;织造时可采用实时随机控制,也可采用预先生成提综序列的方法;生成随机提综序列可采用放回式抽样和非放回式抽样方法,分别织制非限制型和限制型随机织物;随机织物表面存在随机分布的不同长度经浮长线和纬浮长线,织物纬向呈现出凸起的立体条纹,可赋予织物良好的通透性和抗撕裂性能;随机织造时,各综框经纱的交织次数相差不大。

In order to investigate the weaving control method of fabric without repetitive weaving regular rule for warp and filling yarn,the concept of random fabric was proposed with random lifting of heald frames as the mechanism based on the binary expression of the lifting state of heald frames,the weaving control methods of random fabric were proposed,and warp and weft interweaving characteristics of different weaving control methods were analyzed. The random fabrics were simulated using fabric design software,and their weavability was discussed. The fabric samples were woven by a fabric sampling machine,the interception characteristics were verified. The results show that by the random control of the lifting movement of heald frames,random fabrics can be woven into irregular and non-circulating. Realtime random control can be used and the methods of pre-generating weaving sequence can also be used when the random fabrics are woven. Put-back sampling and non-return sampling can be employed when generating randomized weaving sequence,which controls to weave non-limited and limited random fabric,respectively. Warp floats and weft floats with different lengths are distributed randomly on the random fabric surface,and many protruding three-dimensional stripes appear along the weft direction of the fabric,showing good permeability and tear resistance to the fabric. The interlacing numbers of the heald frame have little difference when weaving randomly.