This machine adopts electric&electronic synchtonous control technique,both welding time and seperate-control welding is composed of digital and integrated electric circuit. This poetation is accurate, it has stable gunction,firm welded point,without welded tracks. Not only welding speed is fast,but also it is easy to learn and operate. The machine is equipped with precise equipment for weft cutting and positioning, so the length of wefts is identical and regular,it is unnecessary to slice the side. Drawing mesh system adopts elastic tension and opening positioning mesh,it is easy to regulate mesh hole,and mesh opening size is rather accurate,welding aperture could adjust randomly within range.