| 摘要 |
<p>An apparatus for handling layers of palletised goods, including a vertically displaceable lift head (2) with a mainly horizontal suction face which is substantially adjusted in size for a pallet, and which consists of a large number of downward open suction chambers (8) which via individual valves and an air distribution chamber is connected to a centrifugal blower (4), which is incorporated in the lift head (2) and constitutes the vacuum source of the apparatus, the suction face being arranged to be moved downwards against the upper side of an upper layer of individually or groupwise packed goods on a pallet, and where said valves are designed as ball valves with light, thin-walled spherical valve bodies (10), the valves arranged to be closed if the associated suction chamber (8) is not blocked downwards by contacting the upper side of the goods on the uppermost pallet layer, which the lift head (2) along the outer sides of the suction face comprises a vertically adjustable skirt with inflatable squeezing pads arranged for exerting an inwardly directed pressure on the outer sides of the goods of the upper pallet layer, where in connection with each valve there are provided arresting means adapted to prevent the valve balls (10) from shutting off the valves.</p> |
