| 摘要 |
<p>A labelling machine, employing strip which bears pressure-sensitive adhesive labels, is operated by articles conveyed in succession past the machine. Each article moves an arm, thereby advancing the strip by an amount less than the pitch length of the labels to present a partially detached label at applicator rollers, where it adheres to and is detached by the passing article. In this way labelling can be effected at higher rates than previously. In detaching the label, the article also pulls the strip into position for when the next article moves the arm. Guides, relatively movable in one sense by the arm, or by another arm moved by the article, and in the opposite sense by gravity, and consisting of three rollers, or of a rotary cam and a roller, vary the path length of the strip cyclically in the machine by the above amount, thereby advancing the strip and presenting the partially detached label at the applicator. The machine, instead of being operated by the moving articles, can be operated by flights on the conveyor for the articles. The flights contact the arm or arms or work a linkage to the machine.</p> |
