Novel structure for weaving machine multi-arm apparatus choosing synthesis mechanism

The utility model discloses a new structure used for weaving machine multi-arm device heald selecting mechanism which includes a drive shaft, a drive disc, an eccentric disc, a connecting rod and a raising heald arm. The new structure has main characteristic in that: the drive shaft includes two parallel shafts -a first drive shaft and a second drive shaft, a engaging and disengaging gear is set between the drive disc and the eccentric disc. Several suites composed of the drive disc and the eccentric disc are set on two drive shafts respectively and form two rows suites, correspond to even raising heald arm of weaving machine even number sequence and odd raising heald arm of weaving machine odd number sequence one-to-one. When the raising heald arm amount of weaving machine is even number n, two rows suites amount is n/2 suit respectively, when the raising heald arm amount of weaving machine is odd number m, amount of one row of two rows suites is (m+1)/2, amount of another row of tow rows suites is (m+1)/2-1