Pneumatically-controlled automatic doffing device

The invention relates to a pneumatically-controlled automatic doffing device. An empty pipe frame is installed on a first pipe replacing frame component, a full-rolling frame is installed on a second pipe replacing frame component, the empty pipe frame is connected with a bobbin frame, the bobbin frame is driven by a lifting air cylinder, and the full-rolling frame is driven by a plate shaft air cylinder; the winding device is connected with a pneumatic control component; the pneumatic control component comprises a mounting plate, a control circuit board, a duplex electric control valve, a quick connector and a nylon hose are mounted on the mounting plate, a pneumatic control valve plate and an air source processing assembly are arranged at the quick connector, one end of the air source processing assembly is connected with the nylon hose, and the other end of the air source processing assembly is connected with a ball valve. Automatic doffing of the winding device is achieved, accurate butt joint of the wind