| 摘要 |
The present invention relates to an apparatus, more particularly a gripper head (1), for picking up, transporting, and placing packaging units, in particular trays (20), for instance trays with eggs (21), comprising:
- a gripper frame (2), connected with an arm, for vertically moving and/or rotating, the gripper frame,
- two gripper blades (3) rotatably connected with the gripper frame engaging the packaging units on two opposite sides,
- two supporting strips (4) each connected along hinges (5),
- a driver (6) which performs a vertical movement for engaging such packaging units in an engagement position and releasing such packaging units in a release position, and
- control means connected with the gripper frame, with the supporting strips (4), and with the driver, wherein the control means comprise a single lift plate (7,13) which is arranged under the gripper frame and between the gripper blades and which adjacent the ends of said hinges is connected with the supporting strips, wherein upon a vertical upward movement of the lift plate the supporting strips move to an engagement position, in which such packaging units are engaged, clamped between the gripper blades and supported on supporting ends extending towards ends of the supporting strips, and wherein upon a downward movement of the lift plate the supporting strips move to a release position and thereby substantially move away from each other as well as rotate outwardly, so that such packaging units are released. More particularly, pin-slot connections are used.
With great advantage, a simple design and a reliable operation is obtained. |
