Abstract:

In order to let the beating-up mechanism operate smoothly and stably and meet the desired weaving requirement, this paper applies ideal kinematics equations to derive mechanism parameters in reverse. The acceleration curve equation of beating-up mechanism on a rapier loom is established using 4 sections of cubic Hermite interpolation polynomials. Then based on the acceleration curve equation and its corresponding boundary conditions, the velocity, displacement and jerk equations of beating-up mechanism on the rapier loom is deduced. The calculation of parameters in these kinematics equations is illustrated. By applying these kinematics equations to conjugate cam beating-up mechanism reverse calculation, the parameters of mechanism and the profile of conjugate cam with uniform changing curvature are obtained. The research results indicate that these established kinematics equations can satisfy the requirements of reverse calculation of conjugate cam beating-up mechanism’s parameters, and the required conjugate cam has good mechanical performance.