Device for positioning and locking a lid on a box and packaging machine thus equipped

摘要

The invention relates to a device for positioning and locking a lid on a box and any packaging machine thus equipped. This device comprises an articulated system 9 carrying at least one suction cup 5 which can be put into a state of depression in order to transport and position the lid 8 on the box 4 and then into a state of slight excess pressure in order to push the lid 8 thus positioned and prevent it from following the suction cup 5 when it is retracted. A locking device 10 then intervenes whose characteristic is that it comprises a means of guidance of punches 20 along an angle alpha . The invention applies particularly to machines for packaging eggs using boxes in which a tongue cut out in the cover must be fitted into the inside of a cavity integral with the box. <IMAGE>