Functional device capable of replacing and repairing tape quickly

The utility model relates to the field of tape conveyors and particularly relates to a functional device capable of replacing and repairing tape quickly. The device is characterized by comprising a front mainframe and a middle conversion device, wherein the front mainframe is arranged on a head portion or a tail portion of a tape conveyor, the middle conversion device is arranged on the middle portion of the tape conveyor, the front mainframe comprises a base, a hoisting mechanism, a tape coiling mechanism and a new tape roll, the hoisting mechanism is arranged in the middle of the base, the core portion of the new tape roll is provided with a supporting shaft, two ends of the supporting shaft abut against the base, the tape coiling mechanism is arranged on a support and comprises a dual-switch reducer and a reel, and an output shaft of the dual-switch reducer is connected with a shaft end of the reel through chain transmission. Compared with the prior art, the functional device has the advantages that programs can be replaced and repaired, functions that old tape is extracted, new tape is paved and parts are repaired can be achieved quickly, the labor intensity of workers is reduced, the maintenance time is shortened, the quality of tape maintenance and tape repair is improved, and reasonable assembly can be achieved in accordance with different use requirements.