Yarn breaking detection device for textile machine

The utility model relates to a yarn breaking detection device for textile machine, it includes the main part that has the through wires hole, and the main part is equipped with the protruding rail ofone row of slope interval arrangement, is equipped with the through wires hole of rectangular shape on each protruding rail along the incline direction, is equipped with on the protruding rail along the rolling metal roller of protruding rail incline direction, and the bottom both sides that lie in each protruding rail incline direction in the main part all are equipped with two initial conditionand do not lead the conductive contact plate who connects down. Conductive contact plate controls the broken string stop control return circuit that spinning machine shut down external being used for,and under the initial condition, each through wires hole all passes stretched form's braided wire, and the metal roller on each protruding rail lies in the top of each protruding rail incline direction under the balanced limit