| 摘要 |
A bag opening apparatus is provided by which bags stacked with pins being inserted into pin holes are smoothly opened and delivered one by one from the uppermost one of the bags. The apparatus comprises a center holding member (13) pressing elongations (2) of bags (1) between two pin holes (3) and side holding members (14) pressing the elongations (2) on both outer sides of the pin holes (3). Pressing of the elongations (2) by the holding members (13), (14) is released by rotation of a rotating member (17), (37) around a rotating shaft (18), (38). When the elongations (2) are to be pressed, the rotating member (17), (37) is vertically positioned so that a pushing-up force acting on the elongations (2) is received by the rotating member (17), (37) in a dead point state in the vertical direction. A control device controls such that when the bag 1 is to be opened by being blown with air, the pressing by the side holding members (14) is released and when the bag 1 so opened is to be discharged, the side holding members (14) press the remainder of the stacked bags 1 and the pressing by the center holding member (13) is released. |
