Automatic doffing spinning roving frame as center or launching points to achieve the automatic spinning, empty full bobbin exchange, roving-ring intelligent transportation, automated clean-up of the roving waste, empty bobbin automation configuration and ultimately the roving spinning  with transmission automation, continuous, digital control, to meet the automation needs of  the move varieties production. It can be designed according to customer actual different requirement. Advantage： 1. Bobbin mechanical exchange device Realize automatic exchange between full and empty bobbin for automatic doffing roving frame. Fast exchange，accurately located，almost zero error 2. Intelligent yarn library Intelligent identification, storage and automatic roving transportation