Open Structure and Tension Analysis of Three-dimensional Spacer Woven Fabrics

The process of weaving three-dimensional spacer fabrics on double-shed rapier looms is analyzed. In order to solve the tension control problem of the longitudinal warp non-closed shed, a brief opening model of heald frame is constructed in this paper, and the opening tension is analyzed. The results show that the longitudinal warp tension has a compound function relationship with the length of the rear shed of the loom. When the distance of the front shed and the height of the ground warp in the weaving process are known, the guide bar position of the warp drop frame can be effectively measured by the ratio of the ground warp opening elongation and the ground warp length. In this way, the tension during weaving of multiple sets of warp yarns is uniform.