Analysis of reed-base′s front extreme position for four-bar beating-up linkage

In order to weave the desired fabric with varied weft density,affected factors of reed-base′s front extreme position of four-bar beating-up linkage are analyzed.Elastic dynamic model for four-bar beating-up linkage of a air-jet weaving machine is established.Influences of weaving resistance and loom speed on the reed-base′s elastic displacement at front extreme position are studied.Curves of reed-base′s elastic displacement versus weaving resistance and reed-base′s elastic displacement versus loom speed are abtained and verified with experiments.The results show that influence of weaving resistance on reed-base′s elastic displacement is small and influence of loom speed on reed-base′s elastic displacement is slightly large,but both couldn′t change the weft position at beating-up end obviously.