Development studies on the leaf-picking-machine of cylinder type for the mulberry II

• Published in: The Journal of Sericultural Science of Japan Vol. 44; no. 1; pp. 61 - 67
• Main Authors: TAWARA, Toraji, AI, Fusakazu, WATANABE, Kengo, ITO, Kyoichi
• Format: Journal Article
• Language: English
• Published: The Japanese Society of Sericultural Science 1975
• ISSN: 0037-2455; 1884-796X
• DOI: 10.11416/kontyushigen1930.44.61

In dealing with the leaf-picking-machine of cylinder-type, the relations between a leaf-picking efficiency and the different kinds or arrangements of leaf-picking-teeth were investigated, and the following results were obtained. 1. As the rotation speed of leaf-picking-teeth increased, the picked-leaf ratio increased and the undamaged-leaf ratio decreased, respectively. From such a relationship, the optimum rotation speed of the drums, that is the maximum point of leaf-picking efficiency, picked-leaf ratio×undamaged-leaf ratio, could be determined. 2. The relation between rotation speed of leaf-picking-teeth and picked-leaf ratio indicated that the limits of rotation speed of leaf-picking-teeth were more than 3m/sec for steel plate teeth and more than 5-8m/sec for steel wire teeth if practical picked-leaf ratio was more than 70%. 3. The relation between rotation speed of leaf-picking-teeth and undamaged-leaf ratio indicated that the limits of rotation speed of leaf-picking-teeth were less than 4m/sec for steel plate teeth and less than 5m/sec for steel wire teeth if practical undamaged-leaf ratio was more than 60%. 4. The relation between rotation speed of leaf-picking-teeth and leaf-picking efficiency indicated that the optimum rotation speed of leaf-picking-teeth was 3-4m/sec for steel plate teeth.