The utility model relates to a blue film feeding device and
film coating equipment, and belongs to the technical field of battery packaging, the blue film feeding device comprises an equipment side plate, the equipment side plate is provided with an air expansion shaft used for discharging and a sliding way located on one side of the air expansion shaft, the air expansion shaft is sleeved with a winding drum, and the surface of the winding drum is wound with a blue film; the detection
assembly comprises a mounting seat and a
color code sensor, the mounting seat is slidably connected with the slide way, the
color code sensor is mounted on the mounting seat and used for distinguishing the blue film and the winding drum, and the mounting seat can slide along the slide way to be close to or away from the
inflatable shaft. According to the device, the white
exposure area on the periphery of the winding drum can be recognized through the
color code sensor, then a
signal is transmitted to the controller on the device, the device is
shut down in time, film collapse caused by insufficient incoming blue film length is avoided, and the blue film is fully utilized. And the mounting seat can slide along the slide way to be far away from the
inflatable shaft, so that the operation space is reserved, and the problem that the color code sensor and the mounting seat obstruct the operation when the blue film is produced and replaced is solved.