| 摘要 |
<p>A label printing machine, especially but not exclusively a hot foil label printing machine, has a feed assembly for stepwise indexing label stock in web form through the machine. The feed assembly comprises a web brake (39, 40) and a web-indexing roller (37) and pressure roller (41) combination, whereof the web brake (39, 40) and pressure roller (41) are each controlled by lever (44, 51) means operated by a separate cam (42, 43). The arrangement is such that when the brake (39, 40) is open the indexing roller (37) with the pressure roller (41) in nipped relationship steps the web through the machine and when the brake (39, 40) is on the indexing roller (37) contra-rotates with the pressure roller (47) spaced therefrom.</p> |
