Zipper printing positioning device

The utility model provides a zipper printing positioning device which comprises a roller, connecting assemblies are rotationally installed at the lower ends of the left side and the right side of theroller, the lower end of the connecting assembly on the left side is connected with a second box body in a sliding mode, and the lower end of the connecting assembly on the right side is connected with a first box body in a sliding mode. An output shaft of the servo motor is fixedly connected with a lead screw, the lead screw is rotatably connected into the first box body, the annular outer side of the lead screw is provided with a nut seat through a ball nut pair, the nut seat is slidably connected into the first box body, and the front end and the rear end of the nut seat are both fixedly connected with the right side connecting assembly. And then the nut seat drives the right side connecting assembly to move left and right, the roller is driven to move left and right, rapid positioningis achieved, and the produ