Yarn frame with yarn breakage warning function

The utility model discloses a yarn frame with a broken yarn warning function, which comprises a yarn frame body, a yarn coil is arranged on the front side of the yarn frame body, the front side of the yarn frame body is movably connected with a swing rod through a pin shaft, and one end, far away from the yarn frame body, of the swing rod is movably connected with a supporting rod through a pin shaft. The yarn body is hung on the surface of the supporting rod, traction force generated when the yarn body is conveyed can press the supporting rod downwards so that the supporting rod can drive the swing rod to rotate with the pin shaft as the axis and be disengaged from the microswitch, and when the yarn body breaks, the torsional spring can release deformation force to push the swing rod to reset, so that the yarn body is prevented from breaking. When the left side of the swing rod makes contact with the surface of the pressing alarm structure, the pressing alarm structure can give an alarm, and the problems tha