Device for the packaging of powder, granulates and lump, pasty and liquid materials to be packaged by means of a tubular film

Claim 1

In a device for the packaging of powder, granulates, slurries and viscous materials in a tubular film which is formed from an endless web of film by a forming shoulder into a tube which is filled by means of a filling pipe with the material to be packaged and subdivided at intervals by transverse closures which are each formed by a clip which is brought against the tubular film transverse to the direction of film movement by two cooperating gathering members which are brought against the tubular film from opposite sides to gather the tubular film and thereby form the transverse closure, the improvement wherein two turret discs are arranged downstream of the filling pipe in the direction of movement of the tubular film and are driven in uniform rotation in opposite directions relative to each other, each of said turret discs carrying at least one of said gathering members which cooperate in pairs with each other, and means for rotatably mounting the gathering members on said turret discs so as to be always oriented transversely to the direction of movement of the tubular film, an additional disc arranged alongside one of the turret discs and means for driving said additional disc in opposite direction to, but with the same speed as, said one turret disc, said additional disc being provided with means for feeding clips which form the transverse closures, to the gathering members on said one turret disc, said clip feeding means include support means on said additional disc extending parallel to the gathering members on said one turret disc, the number of said support means on said additional disc corresponding to the specific number of gathering members on said one turret disc, said clip is U-shaped and each said support means is provided with a carriage which is displaceable in a longitudinal direction parallel to the transverse direction of movement of the gathering members, said support means having two pairs of grooves, each said pair of grooves to receive one of said U-shaped clips, ejector bars fastened to the support means for entry into respective pairs of said grooves upon relative movement of the carriage with respect to the support means, to transfer the clips to one of said gathering members while said discs are in motion.