WO2005077210A1 - Method for making double cigarettes with outer filters - Google Patents

Abstract

The invention concerns a method for making filter cigarettes, whereby two lengths of tobacco sticks (15, 16) are inserted in double-length filters (51), which are linked to the double length tobacco sticks (15, 16) by a sheet (52) enclosing them, a subsequent separating incision through the double length filters enabling two partial streams of double length cigarettes provided with a filter length to be formed. Said method is improved in that the cigarettes of the two partial streams are arranged differently for inserting, between the free ends of the cigarettes of the partial streams, a double length filter (61), which is linked to the cigarettes of the partial streams by means of a sheet (62) enclosing them.

Description

Production of double cigarettes with external filters

description

The invention relates to a method for producing filter cigarettes, wherein between double length tobacco stoppers filter plugs double length are introduced, these double-length filter plug with the two tobacco rods double length are connected by means of a UmhüUungsblättchens and by a subsequent separation section through the double-length filter plug two streams with cigarettes double length with a filter plug of simple length and with a free end arise.

From the document GB-A-2 259 84.7 a four-lane filter attachment machine is known in which double-length tobacco sticks are connected to each other with a first double filter. Subsequently, a second double filter is placed on one side in addition to the double-decker tobacco double-tobacco double-decker groups formed. After cutting the first double filter, one with a Filter provided tobacco double stick moved next to the second double filter, so that a längsaxial staggered sequence of tobacco double sticks arises, which is subsequently wrapped with a tipping paper. The double filters are then severed in the middle, so that two episodes of tobacco double sticks, each with a filter at one end of the head arise. The tobacco double sticks can be fed uncut to a packing machine and packaged as double sticks.

Based on this prior art, it is an object of the present invention to increase the production speed and the productivity of a double-lane Filteransetzmaschine, the mechanical complexity should be kept as low as possible.

This object is achieved by a method for the production of filter cigarettes, being introduced between tobacco rods double length filter plug double length, these double-length filter plug with the two tobacco rods double length are connected by means of a UmhüUungsblättchens and by a subsequent separation section through the double-length filter plug two partial streams arise with cigarettes double length with a filter plug simple length and with a free head end, which is further characterized in that the cigarettes of both streams are rearranged, subsequently a filter plug of double length is introduced between the free head ends of the cigarettes of the partial streams and this filter plug mitteis a Circumferential leaflet is connected to the cigarettes of the sub-streams.

The invention is based on the idea that tobacco double sticks are fed in two lanes on a filter attachment machine and be connected with a double filter. After cutting the double filter, the inboard single-length filters are brought outward by a rearrangement process so that the cut filters of single length outwardly and the (still) unconnected other ends of the cigarettes face inward. Double-length filter plugs are then introduced between the longitudinally spaced tobacco double sticks so that after wrapping the second double filter plug a cigarette group of four times the useful length has been created.

The cigarette group four times the length of use consists of a filter plug simple length, a double tobacco stick, a filter plug double length, a tobacco double stick and at the other end of another filter plug simple length.

According to the invention, it is provided that the insertion of the two filter plugs twice the length and the wrapping of the corresponding smoking article groups with a tipping paper leaflets takes place in the same, in particular vertical, plane. In that the processes of inserting the filter plug and wrapping the

Smoking article component groups take place in the same plane, the productivity and performance of a filter tipping machine is increased. In addition, the processes at the filter attachment machine are simplified, since there is a common transport and process level.

In an advantageous development, it is provided that the cigarettes of both sub-streams are rearranged by at least one staggering, a sliding process and a subsequent staggering, so that the cigarettes of both sub-streams are arranged axially aligned. In this case, the cigarettes of both partial flows are longitudinally spaced, so that in a subsequent process Step filter plug of double length between the longitudinally spaced cigarette groups of the sub-streams are introduced.

A rearrangement of the two partial streams can also be achieved by turning the cigarettes of both partial streams by means of a turning device, so that the filter plugs, which are initially located inside the filter plug of simple length, which are connected to a double tobacco rod, are turned and after completion of the turning operation the filter plugs lie outside as well as the open open

Point the heads of the tobacco double sticks inwards.

For this purpose, it is advantageous if, after rearranging, the cigarettes of both partial flows are arranged and aligned axially aligned.

In order to divide the obtained smoking article groups into single-filter tobacco double-stick single-filter groups, it is provided that the double-length filter plug is cut.

In a preferred embodiment of the method it is proposed that the interconnected cigarettes of both sub-streams are cut into filter cigarettes of simple length.

In the context of the invention, it is provided that the cutting and testing of the resulting individual cigarettes can take place on a packing machine, so that after producing the four-fold long cigarettes or double cigarettes with inside double long cigarette stick on a filter attachment machine, the resulting smoking article groups from the filter attachment machine to a packaging machine transported to the tobacco processing industry.

The tobacco double sticks can thus be fed uncut to a packing machine, whereby the failure at the head ends of individual cigarettes in the manufacturing process is reduced.

Furthermore, it is advantageous if the insertion of the filter plug and the wrapping with the wrapping papers are carried out in one plane.

In addition, it is preferred that the double-length tobacco rods be transferred from a multiple-strand machine to a filter attachment machine. For this purpose, the Filteransetzmaschine be preceded by a two-strand or multi-strand machine.

The invention will now be described by way of example without limitation of the general inventive idea by means of embodiments with reference to the accompanying schematic drawings, to which reference is expressly made with respect to the disclosure of all unspecified in the text details of the invention. Show it:

1 is a view of a double-lane Filteransetzma- machine;

Fig. 2 is a schematic functional sequence of the double-lane Filteransetzmaschine according to FIG. 1 and

Fig. 3 is a schematic representation of another inventive process of the manufacturing process.

In the following figures, the same or similar elements or corresponding parts are denoted by the same reference numerals, so that a respective renewed idea is omitted in each case. In Fig. 1, the view of a double-lane Filteransetzmaschine 10 is shown schematically. The schematic functional sequence is shown in FIG. 2.

The filter attachment machine 10 receives from a multiple cigarette rod machine, not shown here, in the present case a quadruple cigarette rod machine, double-length tobacco rods 15, 16. The double-length tobacco rods 15, 16 are spatially offset in each case by means of a transfer drum 11 and 13 taken from the cigarette rod machine. The tobacco sticks 15 are transferred from the transfer drum 11 via a conveyor drum 12 to a wide conveyor drum 14, while the tobacco rods 16 received by the transfer drum 13 are transferred to the conveyor drum 14. From Fig. 2 it can be seen that the transfer drums 11, 13 and the conveyor drum 12 have a smaller width than the subsequent conveyor drums.

From the wide conveyor drum 14, the double-length tobacco stock 15, 16 on a compilation drum 21 in longitudinal axial

Direction pushed together. At the same time 50 filter plugs 51 are inserted from a filter feeder 50, so that from the assembly drum 21 on a conveyor drum 22 article groups, consisting of double-length tobacco sticks - double-length filter plug - double-length tobacco sticks passed.

By means of a padding device 55, padding leaves 52 (FIG. 2) are attached to the article groups on the conveyor drum 22 in the area of the double-length filter plug 51 and transferred to a conveyor drum 23. The provided with a tipping paper 52 article groups are on the conveyor drum 23 of wrapped the tipping paper leaflet 52 and subsequently transferred to a conveyor drum 24 on which the double-length filter plug 51 are cut centrally by means of a cutting knife 25. By cutting the filter plug 51 creates two streams, the streams each cigarettes with a

Filter plugs simple length and have a double-length tobacco rod.

After the transfer of the smoking article groups of the resulting streams from the conveyor drum 24 on a staggering drum 26, the article groups of the sub-streams are staggered alternately, so that in a recording of the staggering drum 26 in the transfer of the article groups from the staggering drum 26 on a sliding drum 27, the article groups respectively a recording axially aligned and offset from one another.

On the sliding drum 27, the staggered product groups of the two partial streams 70 are displaced by means of a spreading device such that the initially inner ends of the cut filter plug are pushed by the article groups to the outside. The transport routes of the article groups of the two sub-streams intersect. For example, a spreader as described in European Patent EP-B-0 862 866 may be used therefor.

After the rearrangement of the article groups of both partial streams by means of longitudinal axial displacement on the sliding drum 27, the article groups are arranged longitudinally axially spaced upon transfer to another staggering drum 31. On the staggering drum 31, the article groups of both partial streams are aligned longitudinally in axial alignment with one another and are spaced, so that between the article groups of the two partial streams in a receptacle a second Filter plug 61 double length of a filter feeder 60 is inserted.

When handing over the assembled article groups from the staggering drum 31 to a conveyor drum 32, the assembled product groups consist of an external filter of simple length, a double-length tobacco rod, a filter plug double length, a double-length tobacco rod and another outer filter simple length.

Subsequently, padding paper leaflets 62 are adhered to the transferred article groups on the conveying drum 32 by means of a padding device 65 in the region of the filter plug 61, so that after the transfer of the article groups to a conveying drum 33, the padding paper leaflets 62 are wrapped around the article groups.

Subsequently, the interconnected article groups are transferred to a conveyor drum 34. By means of a cutting blade 35 on the conveyor drum 34, the filter cigarettes of four times the useful life become filter cigarettes twice

Use length cut with external filter plug.

From the conveying drum 34, the uncut double cigarettes with external filters can be delivered to a packing machine so that the double cigarettes are not cut until shortly before packaging. Thus, the head end failure during transport of the cigarettes from the filter tipping machine 10 to a packaging machine is avoided.

Alternatively, the votes from the conveyor drum 34

Filter cigarettes four times the length of use on the filter attachment machine not cut and only on a packing machine to filter Cut cigarettes of easy use length.

As can be seen from FIG. 2, the sub-processes of the filter insert and the wrapping of the article groups take place in the production of the filter cigarettes in a common transport plane T which is formed perpendicular to the transport direction of the smoking article components or groups and parallel to the front of the filter attachment machine 10 is.

In Fig. 3, a further manufacturing process is shown schematically. In contrast to the sequence shown in FIG. 1 and FIG. 2, in the sequence shown in FIG. 3, after the double-length filter plug 51 has been cut through, the resulting article groups consisting of a double-length tobacco rod and a

Filter plug simple length, turned by means of a turning device. At the end of the manufacturing process, the product groups consist of uncut double cigarettes with external filters.

For further processing, the internal filters 61 are cut, so that the double cigarettes are conveyed to a mass flow and stored in a temporary storage. Only when handed over to a packing machine (reference VP), the double-length cigarettes are cut centrally, so that individual cigarettes arise. Suffix list

10 Filtering machine 11 Takeover drum 12 Conveying drum 13 Takeover drum 14 Conveying drum 15 Double long tobacco rod 16 Double long tobacco rod 21 Compilation drum 22 Conveyor drum 23 Conveyor drum 24 Conveyor drum 25 Cutting knife 26 Stepping drum 27 Sliding drum 31 Stepping drum 32 Conveyor drum 33 Conveyor drum 34 Conveyor drum 35 Cutter 50 Filter feeder 51 Filter stopper 52 Tipping paper leaflets 55 Seating device 60 Filter feeder 61 Filter plugs 62 Coating paper flats 65 Covering device 70 Spreading device T Transport plane VP Packing

Claims

Production of double cigarettes with external filtersPatent claims 1. A process for the production of filter cigarettes, wherein between double length tobacco stoppers (15, 16) filter plugs (51) double length introduced, these double-length filter plug (51) with the two double length tobacco rods (15, 16) by means of a UmhüUungsflättchens (52) are formed and by a subsequent separation section through the double-length filter plug (51) two partial streams with cigarettes double length with a filter plug simple length and with a free end arise, characterized in that the cigarettes of both partial streams are rearranged, below in each case a filter plug (61) of double length is introduced between the free ends of the cigarettes of the partial flows and this filter plug (61) is connected to the cigarettes of the partial flows by means of a circling lamina (62). 2. The method according to claim 1, characterized in that the cigarettes of both sub-streams are rearranged by at least one staggering, a sliding process and a subsequent staggering. 3. The method according to claim 1 or 2, characterized in that the cigarettes of both partial streams are turned by means of a turning device. 4. The method according to one or more of claims 1 to 3, characterized in that after reordering the cigarettes of both partial streams are arranged axially aligned. 5. The method according to one or more of claims 1 to 4, characterized in that the filter plug (62) is cut double length. 6. The method according to one or more of claims 1 to 5, characterized in that the interconnected cigarettes of both sub-streams are cut into filter cigarettes simple length. 7. The method according to one or more of claims 1 to 6, characterized in that the introduction of the filter plug (51, 61) and the wrapping with the wrapping sheets (52, 62) in a plane (T) are performed. 8. The method according to one or more of claims 1 to 7, characterized in that the tobacco sticks (15, 16) twice the length of a multi-strand machine are transferred to a filter attachment machine.