System and method for opening hard wastes of bunchy staple fiber yarns into fibers

The invention discloses a system and a method for opening hard wastes of bunchy staple fiber yarns into fibers. The system comprises a feeding device and a debonding device, wherein the feeding device comprises a conveying mechanism and a rotating clamping mechanism; the conveying mechanism is used for feeding the hard wastes of bunchy staple fiber yarns into the rotating clamping mechanism; the rotating clamping mechanism is arranged at the tail end of the conveying mechanism and is used for rotating and clamping the hard wastes of bunchy staple fiber yarns; the debonding device comprises two debonding licker-ins which rotate and are matched with each other; the two debonding licker-ins are correspondingly arranged under the rotating clamping mechanism; the debonding device is used for rotating and brushing the free ends of the hard wastes of bunchy staple fiber yarns stretching out of the rotating clamping mechanism; a rotating speed of the rotating clamping mechanism is less than the rotating speed of the