PROBLEM TO BE SOLVED: To provide a rotary cylindrical sorting apparatus for bulb vegetables capable of improving the durability thereof, and enhancing working efficiency by throwing the bulb vegetables into a sorting cylinder while adjusting the amount of the bulb vegetables without shearing the bulb vegetables, and by reducing a load on the sorting cylinder.SOLUTION: A rotary cylindrical sorting apparatus for bulb vegetables comprises: a base stand a sorting cylinder having a double structure in which a second sorting cylinder having a second sorting hole smaller than a first sorting hole is concentrically arranged on the outer side of a first sorting cylinder having the first sorting hole, inclined and arranged turnably on the base stand so that an opening window formed in one end of the first sorting cylinder is located higher than a discharge port formed in the other end, and sorting objects to be sorted from the sorting holes a driving unit for turning the sorting cylinder and a hopper having a guide hole for guiding the objects to be sorted to the sorting cylinder. The opening window and the guide hole of the hopper are overlapped in an eccentric manner to form a communication range. The minimum communication range where the objects to be sorted can move is secured, and the communication range is periodically fluctuated as the sorting cylinder is turned.COPYRIGHT: (C)2014,JPO&INPIT【課題】鱗茎菜をせん断することなく、鱗茎菜の量を調節しながら選別筒に投入し、選別筒への負荷を軽減させ耐久性を向上させるとともに、作業効率を改善する鱗茎菜用回転円筒選別装置を提供する。【解決手段】基台と、第1選別孔を有する第1選別筒の外側に、前記第1選別孔より小形の第2選別孔を有する第2選別筒を同心円状に配置させた二重構造からなり、第1選別筒の一端に設けられる開口窓が他端に設けられる排出口より高い位置となるよう傾斜させて前記基台に回転自在に配設され、前記選別孔より被選別物を選別する選別筒と、前記選別筒を回転させる駆動部と、前記選別筒へと被選別物を誘導する誘導孔を備えるホッパとを備え、前記開口窓と前記ホッパの誘導孔とを偏心させ重合配置して連通範囲を形成し、被選別物が移動可能な最小連通範囲を確保するとともに、前記選別筒の回転に伴い、前記連通範囲が周期的に変動する鱗茎菜用回転円筒選別装置。【選択図】 図1
