| 摘要 |
<p>The edges of a sheet (3) of glass travelling in a longitudinal direction (4) are ground by an edge bevelling assembly (7) having a fixed frame (8); a movable frame (16); a grinding wheel (27); a supporting arm (22) supporting the grinding wheel (27) and fitted to the movable frame (16); and an actuating device (9, 10) interposed between the fixed frame (8) and the movable frame (16), and having a first powered guide-slide assembly (9) for moving the movable frame (16) in a direction (11a) parallel to a longitudinal travelling direction (4) of the sheet (3), and a second powered guide-slide assembly (10) for moving the movable frame (16) with respect to the fixed frame (8) in a transverse direction (13a) perpendicular to the longitudinal direction (4); the edge bevelling assembly (7) also having a reference locator (50a) which, in use, is positioned against a longitudinal lateral surface (3c), parallel to the longitudinal direction, of the sheet (3); a relative-motion assembly (50) for enabling movement, parallel to the transverse direction (13a), of the reference locator (50a) with respect to the supporting arm (22); and a device (54) for detecting the position of the reference locator (50a) with respect to the supporting arm (22).</p> |
