An apparatus for forming packages of pre-cooked meals. The package comprises a tray enclosed at least partially by a card sleeve having top and bottom faces and two opposing side walls. The forming apparatus includes a series of forming tools mounted for movement at spaced intervals and each forming tool is provided for the reception of a sleeve in a blank flattened form. As the sleeve is introduced into the forming tool the sleeve is moved to the erected condition, the tray is inserted in the erected sleeve and the formed package removed from the forming tool.
In a station of a boxing machine, for withdrawing and erecting flat folded tubular blanks into boxes, a blank withdrawing rocker arm strips out a flat folded blank from a magazine and places it onto a operating member situated below and associated to an auxiliary conveying line. The auxiliary conveying line extends along a close loop path. Gripping suction cups associated to the operating member engage the lower side of the blank. An erecting arm with a shaped flap makes edge-resting sides of the blank rotate synchronously, about respective articulation lines adjoining to a lower side, until a corresponding box is erected. A shaped guide engages with the carriage and moves the box laterally with respect to the auxiliary conveying line, to insert the box into a corresponding seat on a box conveying line situated beside the auxiliary conveying line.