Belt type pre-loosening device for tobacco blocks

The utility model discloses a belt type pre-loosening device for tobacco blocks, which is characterized in that a feeding conveyor comprises a conveying rack and a conveying channel arranged on the conveying rack, and the belt type pre-loosening device is arranged at the discharging end of the conveying channel of the feeding conveyor; the belt type pre-loosening device comprises two sets of pre-loosening assemblies arranged on the two sides of the conveying channel, each set of pre-loosening assembly comprises a synchronous belt, the synchronous belts achieve transmission through at least two synchronous belt wheels, a plurality of material stirring plates are arranged on the outer surfaces of the synchronous belts at intervals, and a channel between the two synchronous belts of the two sets of pre-loosening assemblies forms a pre-loosening channel. In the conveying direction, the width of the pre-loosening channel is gradually reduced, and one synchronous belt wheel is driven to rotate through the driving c