| 摘要 |
<p>A material dispensing apparatus, for use with a circular workpiece, includes a nozzle (212) having a wedge-shaped aperture (138). The nozzle is (212) attached to a dispenser body, and a solenoid valve is operable to start and start and stop material flow through the apparatus. A rotatable turntable is preferably provided below the nozzle for rotatably supporting a workpiece. In a method of adding a flowable material to a workpiece, having a circular outline, the workpiece is supported on a rotatable support member, and a dispenser nozzle (212), having a wedge-shaped outlet aperture (138), is positioned over a selected portion of the annular workpiece, with a wide end of the aperture adjacent an outer side wall of the workpiece. Then, a valve is opened to allow material to flow through the nozzle (212). After the material flow begins, the annular workpiece is rotated to deposit the material substantially evenly thereon, and after the annular workpiece has been rotated an amount in a range between 350 and 370 degrees, the valve is closed to stop the material flow through the nozzle (212).</p> |
