Design and Experimental Verification of Unilateral Double-needle Double-thread Oscillating Stitching Trajectories
Due to a thickness of more than 3 mm could not be sewed using the single-sided double-needle double-thread stitching head insertion mechanism,an asymmetrical 8-shaped motion trajectory was proposed and the motion trajectory of the needle insertion mechanisms was designed.Firstly,the dimensions of various components of the oscillating insertion mechanisms were determined based on the kinematic analysis of the single-sided double-needle double-thread stitching processes.Then,a mechanism model was constructed in ADAMS and a trajectory analysis was performed.Finally,stitc-hing experiments were conducted using the prototype.The results show that the designed stitching mechanisms may increase the actual stitching thickness from less than 3 mm to 8 mm and form a sta-ble loop during the stitching processes,confirming the reliability of the asymmetric 8-shaped stitching technique and the oscillating insertion mechanisms.
国家科技期刊平台
NSTL
万方数据
维普
