| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a bag opening mechanism that is installed in a bag mounting device for cutting out a film bag having one end made openable out of a flatly folded cylindrical belt-like film so as to mount a film-like inner bag on the inner surface of a container, and can securely open the one end of the cut film bag. <P>SOLUTION: The bag opening mechanism includes: a head part 19 which has a suction pad 30 capable of sucking the side face of a film bag F arranged in a front part; block members 15, 16 which hold the rear part of the head part via a link member 17 turnable in a predetermined direction, and can move the head part by the link member from a reference position along the side face of the film bag; a first position restriction member 32 which restricts the movement position of the head part by abutting against the head part when the head part moves along the side face of the film bag; a holding means 23 of holding the movement state of the head part; and advancing and retracting means 6, 7, 8, and 10 of supporting the block member so as to be advanced and retracted to/from the film bag. <P>COPYRIGHT: (C)2013,JPO&INPIT |
