The invention discloses a double-swing main jet wefting
insertion mechanism of a jet loom, comprising a
fist-level main jet and a second-level main jet. The double-swing main jet wefting
insertion mechanism of a jet loom is characterized in that the first-level main jet and the second-level main jet are arranged on the same buckle seat and synchronously swing with the buckle seat, the first-level main jet is arranged in front of the second-level main jet, and the
nozzle of the second-level main jet is aligned with the
nozzle of the first-level main jet one by one. In the invention, the
fist-level main jet performs the main dragging action on
weft yarn, the second-level main jet is the supplement of the
fist-level main jet, and the second-level main jet and the first-level main jet are arranged on the same buckle seat and synchronously swing, which not only can obtain large enough traction to provide enough time for the
weft yarn to fly but also can cause the
weft yarn to fly along a straight line so as to reduce unnecessary bending resistance, and thus the weft
yarn can smoothly fly. The invention lowers
gas consumption, and can better improve wefting
insertion rate to obtain the effect of energy saving and high efficiency. Meanwhile, the invention can better adapt to the requirements of high speed and wide width of jet looms.