| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a bag mouth tying device with which a bag mouth can be folded into a beautiful fan shape and the number of required motors is reduced and of which the structure is simplified. <P>SOLUTION: A bag mouth tying device includes: a pair of upper and lower bellows-folded creasing films 6a and 6b for holding a bag mouth therebetween; a tie forming device 3 forming a supported tie B in a U-shape accompanied with rising; a tie feed-out roll 2 feeding the tie B into the tie molding device 3 located at a lower limit position; and a tie twisting hook 5 rotated while being engaged with both end portions of the U-shaped tie B. A first cam 10 for approaching/separating the upper and lower bellows folded creasing films 6a and 6b, a second cam 11 for extending/contracting the upper and lower bellows folded creasing films 6a and 6b, a third cam 12 for rotating the tie feed-out roll 2 and a fourth cam 13 for vertically moving the tie molding device 3 are attached to a camshaft 9 turnably driven by a main motor 51. <P>COPYRIGHT: (C)2013,JPO&INPIT |
