三维机织物织边造型工艺设计

Design of 3-D woven fabric selvage modeling process

为满足市场对不同种类三维机织物的需要,提高多剑杆织机的产品适应性,在分析现有三维机织物造型工艺优缺点的基础上,提出了一种在多剑杆织机上织造三维机织物的新型造型工艺即织边造型工艺。结合新型工艺的需要,对现有多剑杆织机的织边系统和打纬机构的结构进行了改进设计,简单介绍了这种新型工艺的织造过程。通过在小样织机上试织,按照工艺织造出圆形横截面仿形织物。实验结果表明,织边造型工艺应用于复合材料预制件的织造会在一定程度上提高织机对更多织物产品种类的适应性,同时可解决织机因层数限制而不能织造壁厚较大的空心机织物的问题。

In order to satisfy the market needs to different kinds of 3-D woven fabric,and improve the adaptability of the multi-rapier loom for products,the paper proposed a novel modeling process named selvage modeling for weaving 3-D woven fabric on the multi-rapier loom,based on the analysis on the existed advantages and disadvantages of various modeling processes.Combining with the need of the novel process,this paper improved the structural design of the selvage and beating-up system in current multirapier loom.Meanwhile,it simply introduced the weaving process of the novel process.By weaving cylinder repletion fabric on a small sample loom,a cylinder repletion fabric was woven according to the selvage modeling process.The results show that the application of the selvage modeling process in weaving composite preform can improve the adaptability of the loom to more fabric product types to a certain extent.In addition,it can solve the problem that the loom couldn＇ t weave large-wall thickness hollow woven fabric due to the restrictions of the layer number.