| 摘要 |
A power-cycled machine triggered by the manual vertical presentation thereto of a bunched bag neck, to apply in confining relation to said neck a "Kwik Lok" type of bag closure. The machine receives closures in strip form, each closure having a narrow forward opening connecting with a heart-shaped closure aperture forming jaws preventing escape of the bag neck forced through said opening into said aperture. This strip is advanced during the second half of each cycle to feed the foremost closure into a slot in a closure applying rocker with the latter rocked upwardly into horizontal position. As the cycle is concluded, the rocker is rocked 60 DEG downward to thus incline downward the foremost closure. The next cycle is initiated by presenting a vertically bunched bag neck manually to the middle of the rocker, the bag neck engaging a trigger starting the motor which rocks the rocker to swing the foremost closure back up to horizontal position, thus flexing the jaws thereof about the bunched bag neck and trapping the latter in the closure aperture. The motor automatically stops when this occurs, and starts again to complete the cycle when the closed bag is pulled forwardly to separate the foremost closure from the strip. The next following closure then becomes the foremost in the strip and is automatically fed into the rocker and swung downwardly 60 DEG in readiness to be applied to a bag in the next following cycle. An automatic indexer prevents escape rearwardly of the foremost closure while being applied to a bag neck. The indexer also secures the balance of the closure strip against being pulled forwardly by the separation of the closure on the bag from the rest of the closure strip. Provision is also made for optionally feeding through the machine bare closures in strip form or strips of such closures having labels glued on the individual closures. The machine also has a printer for printing dates or code markings on the individual closures or labels as they pass through the machine. |
