| 摘要 |
The present invention relates to an apparatus, more particularly a gripper head, for picking up, transporting, and placing packaging units, in particular trays, for instance trays with eggs, comprising: a gripper frame, connected with an arm or beam for therewith displacing, for instance vertically moving and/or rotating, the gripper frame, two gripper blades which are rotatably connected with the gripper frame and which engage the packaging units on two opposite sides, two supporting strips each connected along hinges extending substantially in horizontal direction with each respective one of the two supporting strips and which are furthermore connected with the gripper frame, a driver which upon substantially horizontal pick-up and placement of the packaging units 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, and with the driver, wherein the control means comprise a single lift plate 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. |
