Fiber splitting mother yarn spinning device capable of independently adjusting temperature of cooling air and fiber splitting mother yarn cooling method

The invention relates to the technical field of spinning, and discloses a fiber splitting mother yarn spinning device capable of independently adjusting the temperature of cooling air and a fiber splitting mother yarn cooling method. The spinning device comprises a spinning manifold, a spinning assembly, an air cooling channel, a side blowing air window, a spinning channel, a cooling air duct arranged outside the side blowing air window and a secondary cooling mechanism connected with the cooling air duct; and the secondary cooling mechanism comprises an air pipe, an air valve, a surface air cooler, a water pan, a temperature measuring element and an air conditioning unit. According to the spinning device, the cooling air temperature of a single spinning position can be adjusted and controlled according to different types of produced tows, and the length space of the spinning channel is effectively utilized, so that it is guaranteed that the tows have enough space time to achieve the sufficient cooling effect