Abstract: As a solution to the interruption tobacco supply to the electronic belt weigher, caused by uneven slicing, the control system for slicing thickness in the vertical inclination slicer was redesigned based on a parallelogramic double-arm mechanism. An assisted positioning cylinder was installed on the back of the baffle plate to provide power for transmission mechanism and assist the existing positioning cylinder. The slicing thickness could be adjusted by regulating the adjustable bolt on the piston rod of the assisted positioning cylinder. A time delay control was added, the baffle plate worked together with an approach switch to ensure reliable bale positioning. The results showed that by improving the control method for tobacco bale positioning, the baffle plate swaying occurred in the process of positioning and the uncertainty in tobacco bale position detection were effectively solved, the tobacco block was evenly sliced, and the interrupted tobacco supply to conditioners reduced from 15 to 2 times/month.