Lifting stacked flat objects from each other - involves blowing air through needle into gap between top sheets for easier removal

摘要

The stacked flat objects are lifted off from each other through vacuum grippers which pick up the topmost object which in turn is first perforated in order to produce at least one temporary open channel (12) which runs at least up to the depth of the boundary face (19) between the topmost object (10) and the one (11) underneath. Air is blown in through the channel (12) onto the boundary face (19) which becomes an air gap which separates the topmost object from the one (11) underneath and prevents the vacuum produced by the vacuum gripper from reaching the other objects lying below. The topmost object can be easily removed from the stack. Compressed air can be blown in between the top two objects through a cannula like needle (12). USE/ADVANTAGE - Easier single removal of the objects without breaks in the operation.