controller 5 in order to hold the cutting tool 12 on the sealing tool upper part 9 the sealing frame 16 thereby raises the cutting tool 12 via the bolt 18 the sealing frame 16 and the sealing tool upper part 9 then move further upwards as shown in fig6 in order to release the drawer 6 for extraction fig7 shows how the drawer 6 is extracted from the working station 2 in order to remove the package 21 and in order to make it possible to insert the next tray 7 that is to be sealed the electromagnet 11 or a permanent magnet can act directly on the cutting tool 12 or on a ferromagnetic material mounted thereon a variant provides that the holding element 11 is mounted on the cutting tool 12 and acts on the sealing tool upper part 9 alternatively the holding element can be a mechanical grid that is opened by means of the controller 5 and that independently locks into place in order to hold the cutting tool 12 on the sealing tool upper part 9 in a further variant it is conceivable that the top film 4 is cut by the blade 14 before the top film 4 is clamped against the tray 7 by the sealing frame 16 for sealing this variant makes it possible for the top film 4 to be cut within the edge 15 of the tray 7 so that the package 21 can be further.