Abstract:Due to the problems of high filament ratio of fine branch tobacco, the quality of large tobacco fluctuation greatly, the poor stability and the high unqualified rate, a kind of needle roller cut tobacco structure control equipment was developed to realize the targeted control of filament. The device consisted of a cut tobacco screening mechanism and a cut tobacco breaking device which were different from those previously reported. The mixed cut tobacco went into the cut tobacco screening mechanism. In the dynamic rolling state, the medium and short cut tobacco falled through the gap between the needle rollers, and the long cut tobacco was transferred step by step to the wire breaking mechanism under the action of the steel nail of the needle roller. The wire breaking was realized under the action of the differential rotation and pulling of the needle roller and the needle breaking roller. The application results of gold leaf (Aishang) fine count cigarette cut tobacco as a sample in actual tobacco production showed that the equipment had high stability. Under the operating parameters of needle roller spacing of 40 mm, wire selection roller motor frequency of 30 Hz, and wire breakage roller motor frequency of 47 Hz, the tobacco long cut rate after regulation treatment decreased by 12.58%, while the medium cut rate and short cut rate increased by 8.12% and 3.96%, respectively. The broken cut rate only increased by 0.12%, and the distribution of tobacco structure was more reasonable, meeting the processing quality requirements.