Sample yarn auxiliary dyeing device and dyeing method

The invention relates to a sample yarn auxiliary dyeing device and a dyeing method. The sample yarn auxiliary dyeing device comprises a yarn winding piece, a first elastic piece, a second elastic piece, a first yarn hooking piece and a second yarn hooking piece. The yarn winding piece is used for winding sample yarn and is of a hollow structure, and a dye liquor channel for dye liquor to pass through is arranged on the side wall of the yarn winding piece in a penetrating mode. The first elastic piece and the second elastic piece are correspondingly and rotationally connected to the two ends ofthe yarn winding piece. The first yarn hooking piece is fixed to the end, away from the yarn winding piece, of the first elastic piece, the second yarn hooking piece is fixed to the end, away from the yarn winding piece, of the second elastic piece, and the first yarn hooking piece and the second yarn hooking piece can be matched to hook the two ends of sample yarn. By adopting the sample yarn auxiliary dyeing device, th