An Approach to Kinematic Design of Four-bar Sley Drive Mechanisms in Weaving

摘要

An approach to design a four-bar linkage sley drive mechanism for a desired sley motion curve is introduced. Kinematic design equations are given and then the link lengths of the mechanism are determined. Sley angular displacement, angular velocity and angular acceleration are obtained by using kinematic analysis equations and the effects of time ratio, the angle β and the deviation of the transmission angle from 90° on sley motion are discussed. Finally, the angle β, the minimum transmission angle and the time ratio values that can be used for different weaving machine types are commented on.