The application relates to a jacquard opening
transmission system of a loom and a design method thereof, and belongs to the technical field of jacquard opening of looms. The
transmission system comprises a main shaft, a
crank rocker mechanism, a parallel four-bar linkage mechanism and two groups of parallel multi-link mechanisms. The multi-link mechanism comprises a rocker slider mechanism. The
crank rocker mechanism drives the multi-link mechanism to move, so that vertical
reciprocating motion and rotary motion of a lifting knife frame are realized to form an opening. The main shaft can be driven by a
servo motor to realize variable speed input. The design method combines
rigid body guidance and quick return characteristics. Design equations,
transmission function models and evaluation models of the rocker slider mechanism and the
crank rocker mechanism are constructed, and the size of the mechanism is optimized. The application has the advantages of
low gravity center, simple
motion range adjustment,
high transmission efficiency, smooth motion and the like, is suitable for looms with different widths, and can improve weaving quality.