Liquid packing machine anti-drip valve

The utility model aims to provide a drip-proof valve of a liquid packaging machine. The drip-proof valve of the liquid packaging machine is composed of a valve body and a plunger pump. The valve body is composed of a liquid inlet and a first metal. The ball, the second metal ball, the first passage, the second passage, and the liquid outlet form a sealed working chamber; the first passage is communicated through the first valve hole and the second passage, and the outer diameter of the first metal ball is slightly larger than the first The inner diameter of a valve hole is slightly smaller than the inner diameter of the first channel, and is placed between the first channel and the first valve hole; the liquid inlet communicates with the second channel through the second valve hole, outside the second metal ball. The diameter slightly larger than the inner diameter of the second valve hole is slightly smaller than the inner diameter of the second channel, and the second metal ball is disposed between the second channel and the second valve hole, and the second channel is communicated with the inner cavity of the pump body. . The device not only has a simple structure but also prevents drip leakage.