Packaging machine for "american" boxes

The machine comprises feed means (11) of empty boxes are placed on lesquel a store (12) blank boxes folded at means (13) opening, volume-up of the fund and its constitution base (4); means for supplying (14) the contents (10) of the body (2) in batches; transfer means (15) of the batches (10) to place them in the boxes (2) open; and means for discharging crates (16) onto which are placed from upstream to downstream on the one hand the transfer means (15) mentioned above and secondly means (17) of formation of the cover ( 5) by folding and joining of the flaps (7, 9) which constitute it. The means (13) and the means (17) are slidably but lockable mounted on axes and moved along these axes by drive means associated with digital control means.