Device for the continuous feeding of a ribbon shaped material to a processing machine
AssigneeB.A.T. Cigarettenfabriken GmbH
InventorsHeinz Krappitz, Heinrich Krodel, Johannes Wolfrum, Rainer Sittkus, Rolf Becker
Life of this patent
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Abstract
Device for continuous feeding of a ribbon shaped material to a processing machine, complete with a swingable bobbin-carrier, mounted on bearings to a base frame, with at least 2 spindles for the reception of each bobbin.
Claims16
In a device for continuous feeding of a ribbon shaped material to a processing machine, complete with a swingable bobbin-carrier, mounted on bearings to a base frame so as to swivel about a carrier axle, with at least two spindles for the reception of each bobbin, each being situated parallel to the carrier axle at the same radial distance therefrom, a bobbin cutting off station with a cut-off device adjustable to be in operational position either near the carrier axle or to be in a resting position away from the carrier axle, said cut-off device having an adjustable knife, parallel to the carrier axle, capable of cutting through at least one ribbon layer and including a catching device for the free ribbon end, and a glue station to bind the ribbon end of an unrolling bobbin to the beginning end of a new bobbin which is to be unrolled, the improvement wherein the cutting off mechanism (50) as an adjustable splaying finger (62) which is generally parallel to the carrier axle (16) on the outer circumference of the bobbin (20) and adjacent with the knife (68), the splaying finger (62) being insertable as the bobbin (20) rotates under the ribbon near the outer circumference of the bobbin;
- each spindle (18) on the bobbin carrier (14) being fitted with a ribbon holding device (24) for the free ribbon ends, and the glue station (112) being situated near the circle of rotation (36) of the bobbin carrier (14), the bobbin carrier (14) being rotatable to cause the ribbon holding device (24) to bring a free end of a ribbon of a new bobbin from the cutting station (38) radially under the unrolling ribbon (22) adjacent the glue station (112) where the beginning end of the ribbon of the new bobbin can be connected to the ribbon of the unrolling bobbin.
In an apparatus for connecting ribbon shaped material from a new bobbin to a ribbon on an old bobbin, both bobbins being connected to spindles on a carrier which is rotatable about a carrier axle, the apparatus including a cutting off station for cutting through at least one ribbon layer of the new bobbin, with the apparatus additionally including a gluing station for binding the cut ribbon end of the new bobbin to the ribbon of the old bobbin whereby ribbon shaped material can be continuously fed to a processing machine, the improvement wherein the cutting off station includes finger means lying generally parallel to the carrier axle and being insertable under at least one outer layer of the new bobbin and cooperating with a knife to produce a free ribbon end on the new bobbin, holding means connected to the carrier for holding the free ribbon end, means for rotating the carrier about its axle to bring the holding means into underlying relationship with the ribbon being unrolled from the old bobbin adjacent to the gluing station whereby the free end can be connected to the ribbon of the old bobbin.
Dependencies are inferred from the claim text.