Packaging machine with a machine stand and an insulating housing sealingly connected to the machine stand

The invention relates to a packaging machine, in particular for filling and sealing containers containing liquid pharmaceuticals. A packaging machine of this kind has a hoodlike insulator housing, which sealingly surrounds a machine plate of a machine stand, thus forming a sterile chamber in which the containers are filled with a product and then sealed. On its underside toward the machine stand, the insulator housing has an encompassing, inward-drawn edge, which with the interposition of a sealing element, such as silicone, rests with its full surface on the top side of the machine plate, on the peripheral regions thereof. To fix the insulator housing on the machine stand, threaded bolts are also disposed on the underside of the inward-drawn edge of the insulator housing; the bolts engage suitably disposed openings in the machine plate. A disadvantage of this is that the machine stand with its machine plate is also used in packaging machines that lack the insulator housing, so that for those applications the machine plate is unnecessarily wide, considering that for reasons of standardization it is always desirable to use the same machine plate. The openings for the threaded bolts of the insulator housing furthermore require additional production effort and expense. Especially if the machine plate has a plurality of regions of different heights, the production of the insulator housing and of the machine plate is also relatively complicated, since the height tolerances of the components must be relatively tight in order to limit the heights of the gaps. A packaging machine comprising a machine stand and an insulator housing sealingly connected to the machine stand. The connection to the machine stand is made via retainers, disposed on the machine housing, with a profile frame of the insulator housing resting on the retainers. Between the insulator housing and the machine stand, a gap is formed, in which a sealing element is disposed. The packaging machine according to the invention makes standardized machine stands possible, as well as a structure that is simpler from the production standpoint, because less stringent tolerances are required.