| 摘要 |
<p>A die (14), preferably one with internal metering pumps for applying an extremely uniform coating to a traveling web (12), is mounted over a pair of very rigid side plates (34). Horizontal surfaces (34a) of the plates support linear slides (28) which in turn support the die through uprights. The slides have preloaded bearings (28c) to allow a linear movement of each upright with no lost motion. Pneumatic cylinders (48) move each upright along its slide independently of the other upright. Adjustable stops (32a) set the die-to-web spacing when the cylinders draw the uprights, and therefore the die toward the web. Other air/hydraulic cylinders (50) drive the uprights away from the web, against the action of the main cylinders, to jump splices in the web.</p> |
