Automatic joint system for spinning frame

The utility model relates to the technical field of spinning frames, in particular to an automatic joint system for a spinning frame. The problem that a thread end is inconvenient to find in an existing joint device is solved. The device comprises a base, a bobbin is arranged on the base, a connector base is arranged on the base, a fixing plate is arranged on the connector base, a mounting hole is longitudinally formed in the fixing plate, a servo motor is fixedly connected to the fixing plate, and the bottom end of an output shaft on the servo motor penetrates out of the mounting hole and then is fixedly connected with a connecting plate. A suction nozzle is arranged on the connecting plate in a sliding mode, a driving mechanism used for driving the suction nozzle to move in the length direction of the connecting plate is arranged on the connecting plate, a hose is arranged on the suction nozzle, one end of the hose is communicated with the interior of the suction nozzle, and the other end of the hose is con