| 摘要 |
A wheel soaper for spraying soap on a wheel rim includes a conveyor for conveying wheels in a horizontal position in succession to a soaping station. A downwardly facing frictional drive disc is located above the conveyor at the soaping station clear of the path of movement of wheels and is mounted for rotation about a fixed vertical axis. A cone member is mounted beneath the disc in coaxial relationship with the disc for free rotation and is driven in vertical movement by a reciprocating air motor upwardly from and downwardly to a normally maintained rest position below the path of wheels on the conveyor. When a wheel is stopped on the conveyor at the soaping station, the cone is driven upwardly into the central opening of the wheel to lift the wheel from the conveyor until the upper rim of the wheel is firmly pressed against the drive disc which is then driven in rotation as soap is sprayed from a stationary nozzle onto the rotating wheel rim. The cone provides a self centering action and a pressure regulator connected to the air motor stops further elevating movement when the wheel is clamped against the disc to enable the apparatus to soap wheels of various diameters and axial widths.
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