| 摘要 |
A continuously moving web pressure-sensitive labeler 10, (100, fig 2) applies pressure-sensitive labels 12 to articles 37 moving in a given direction past a label applying station 20. The labels 12 are initially carried by the moving web 14 and the labeler includes a label applying mechanism such as a peel plate 19 and a vacuum drum 18, (180, fig 2) for stripping labels 12 from the moving web 14 and delivering the stripped labels in the given direction onto articles 37 as they pass the label applying station in the given direction. The labeler also has mechanism which generates a timing signal for timing the placing of labels in register on the label applying mechanism. In a first embodiment, the timing signal generating mechanism includes an encoder 35 driven by the drum 18 and also includes a rotary vacuum valve 30. In a second embodiment, the labeler (100, fig 2) includes a conveyor (39, fig 2) for carrying articles past the label applying station and a timing screw (41, fig 2) for orientating articles on the conveyor in evenly spaced single file manner, and the mechanism for generating a timing signal includes an encoder (35, fig 2) driven by the timing screw. <IMAGE> |
