Online tobacco flake pre-loosening device

The online tobacco flake pre-loosening device comprises a conveying groove (1), a conveying belt (2), lifting supports (3), a protective cover (4), a transmission assembly and a loosening assembly, the lifting supports are symmetrically installed on the outer side of the conveying groove, the protective cover is fixedly connected to the top ends of the lifting supports, and a visual device is arranged at the front end of the protective cover; a transmission assembly is installed between the symmetrically-arranged lifting supports, and a loosening assembly is installed on the transmission assembly. The connecting base can be driven to rotate through the variable frequency motor, so that the loosening assembly installed on the transmission assembly is driven to rotate, the rake hook is arranged to be of a 120-degree bent structure at the front end, the rake hook is used for loosening cut tobacco leaf raw materials, it is ensured that one cut tobacco sheet is loosened 3-4 times before entering loosening and mois