| 摘要 |
A wiper apparatus (10) for spreading, smoothing or otherwise wiping liquid coating material on a surface (13) of a moving strip (12), such as, for example, a moving strip of metal. The wiper apparatus (10) comprises first and second felt wipers (15) for alternatively wiping the liquid coating material on the surface of the moving strip (12); and a wiper support (16) coupled to the first and second wipers (15) for rotation of the first and second wipers (15) to move the first and second wipers (15) between a first orientation wherein the first wiper (15) is adjacent the surface of the moving strip (12) for wiping the liquid coating material on the surface of the moving strip (12) and the second wiper (15) is spaced from the surface of the moving strip (12), and a second orientation wherein the second wiper (15) is adjacent the surface of the moving strip (12) for wiping the liquid coating material on the surface of the moving strip (12) and the first wiper (15) is spaced from the surface of the moving strip (12). The apparatus (10) includes at least one shaft (26, 28) coupled to the first and second wipers (15) for rotating and second wipers to move the first and second wipers (15) between the first and second orientations. The wiper apparatus (10) may also include a lift assembly (18) having a pair of arms (128, 132) for moving the first and second wipers (15) between an engaged position in which one of the first and second wipers (15) is adjacent the surface of the moving strip (12) and a disengaged position in which both of the first and second wipers (15) are spaced from the surface of the moving strip (12). The wiper apparatus (10) may further include a releasable lock for releasably locking each shaft (26, 28) to a further respective arm to prevent rotation of the shaft (26, 28) relative to the arm (128, 132). |
