Abstract: In order to solve the dynamical analysis of slot needle's six-bar linkage in high speed warp knitting machine, reduce the impact of movement, the high-speed movement’s smoothness of warp knitting machine is improved. The Kineto-elastodynamic analysis (KED) method of multivariate flexible mechanism is applied to analysis of slot needle's six-bar linkage. The analysis of structural modeling is presented in the slot needle's six-bar linkage based on the technique of UG, and the flexible variation of the slot needle is systematically studied in the high-speed movement; the UG is applied to the changing situation of slot needle's displacement, velocity, and acceleration which simulated in different conditions of movement; The correctness of the KED analysis methods of knitting elements is verified, the basis of theoretical analysis is provided for slot needle's six-bar linkage of knitting elements structural design and optimization.

Key words: high speed warp knitting machine, slot needle, six-bar linkage, elastodynamics, UG simulation