EP1715766B1 - 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

The invention relates to a process for the production of filter cigarettes, wherein double-length tobacco stoppers are introduced between double-length tobacco stoppers, these double-length filter stoppers are connected to the respective two tobacco rods double length by means of a Umhüllungsblättchens and by a subsequent separation section through the double-length filter plug two partial streams produced with cigarettes of double length with a filter plug of simple length and with a free end.

From the document GB-A-2 259 847 is a four-lane Filteransetzmaschine known in the 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.

Out DE-A-11 27 778 For example, a method for manufacturing multi-mouth cigarettes is described in which single or multiple filters are placed at the two ends of single-length cigarettes. After attaching a filter attachment to the cigarettes, the single-length cigarettes are turned so that the filter attachments face outward. Subsequently, a second filter attachment between the free ends of the cigarettes simple length is introduced.

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, 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 cover leaflet and by a subsequent separation cut through the double-length filter plug two partial streams with cigarettes of double length with a filter plug of simple length and with a free head end arise, which is further developed by the fact 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 sub-streams and this filter plug is connected by means of a wrapping leaflet with the cigarettes of the sub-streams, the cigarettes both sub-streams be rearranged by at least one stagger, a shift and a subsequent staggering.

The invention is based on the idea that tobacco double sticks are supplied in two lanes on a filter attachment machine and are connected to 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 simple 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. By having the processes of loading the filter plugs and wrapping the smoking article component groups in the same plane, the productivity and performance of a filter attachment machine is increased. In addition, the processes at the Filteransetzmaschine be simplified because a common transport and process level is present.

For this purpose, 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 streams are spaced longitudinally axially, so that in a subsequent process step filter plugs twice the length between the longitudinally spaced cigarette groups of the partial streams are introduced.

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 single cigarettes can be done on a packaging machine, so that after producing the four-fold long cigarettes or double cigarettes with inside double long cigarette stick on a filter attachment the resulting smoking article groups from the filter attachment machine to a packing machine of tobacco transported to the 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.

Fig. 1

eine Ansicht einer doppelbahnigen Filteransetzma- schine;

Fig. 2

einen schematischen Funktionsablauf der doppelbahni- gen Filteransetzmaschine gemäß Fig. 1 und

Fig. 3

eine schematische Darstellung eines weiteren nicht erfin- dungsgemäßen Ablaufs des Herstellungsverfahrens.

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:

Fig. 1

a view of a double-lane Filteransetzma- machine;

Fig. 2

a schematic functional sequence of the doppelbahni- gene Filteransetzmaschine according to Fig. 1 and

Fig. 3

a schematic representation of another non-inventive process of the manufacturing process.

In the following figures, the same or similar elements or corresponding parts are designated by the same reference numerals, so that a respective renewed idea is omitted in each case.

In Fig. 1 schematically the view of a double-lane Filteransetzmaschine 10 is shown. The schematic functional sequence is in Fig. 2 shown.

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 of 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. Out 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 sticks 15, 16 are pushed together on a compilation drum 21 in the longitudinal axial direction. 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 covering device 55, covering sheets 52 (FIG. Fig. 2 ) are attached to the article groups on the conveyor drum 22 in the region 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 partial flows, the partial flows each having cigarettes with a filter plug simple length and a double-length tobacco rod.

After the transfer of smoking article groups of the resulting streams from the conveyor drum 24 on a staggering drum 26, the article groups of the partial 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 in European Patent EP-B-862 866 described, to be used.

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 four times the useful length are cut into filter cigarettes double use length with external filter plug.

From the conveyor drum 34, the uncut double cigarettes with external filters can be delivered to a packing machine, so that the double cigarettes are cut only 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 filter cigarettes delivered by the conveyor drum 34 four times the useful length are not cut on the filter attachment and only on a packaging machine to filter cigarettes cut easy length of use.

How out Fig. 2 It can be seen that the sub-processes of filter loading and wrapping of the article groups in the manufacture of filter cigarettes take place 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.

In Fig. 3 schematically another non-inventive manufacturing process is shown. Unlike in Fig. 1 and Fig. 2 are shown at the in Fig. 3 shown sequence after cutting through the double-length filter plug 51, 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.

LIST OF REFERENCE NUMBERS

10

filter attachment

11

transfer drum

12

conveyor drum

13

transfer drum

14

conveyor drum

15

double-length tobacco rod

16

double-length tobacco rod

21

Assembly drum

22

conveyor drum

23

conveyor drum

24

conveyor drum

25

cutting blade

26

staggering drum

27

pushing drum

31

staggering drum

32

conveyor drum

33

conveyor drum

34

conveyor drum

35

cutting blade

50

Filterzuführeinrichtung

51

filter plug

52

Tipping paper

55

covering device

60

Filter feeder

61

filter plug

62

Tipping paper

65

covering device

70

spreading

T

transport plane

VP

packing

Claims (6)

1. Method for producing filter cigarettes, in which double-length filter plugs (51) are inserted between double-length tobacco rods (15, 16), these double-length filter plugs (51) are connected to the, in each case, two double-length tobacco rods (15, 16) by means of a wrapping sheet (52), and, by a subsequent separating cut through the double-length filter plugs (51), two partial streams having double-length cigarettes with a single-length filter plug and with a free end are obtained, characterised in that the cigarettes of both partial streams are rearranged, subsequently in each case one double-length filter plug (61) is inserted between the free ends of the cigarettes of the partial streams and this filter plug (61) is connected to the cigarettes of the partial streams by means of a wrapping sheet (62), the cigarettes of both partial streams being rearranged by at least a staggering, a pushing operation and a subsequent staggering.
2. Method according to Claim 1, characterised in that, after the rearranging, the cigarettes of both partial streams are arranged in an axially aligned manner.
3. Method according to one or more of Claims 1 to 2, characterised in that the double-length filter plug (61) is cut.
4. Method according to one or more of Claims 1 to 3, characterised in that the cigarettes, connected to one another, of both partial streams are cut into single-length filter cigarettes.
5. Method according to one or more of Claims 1 to 4, characterised in that the insertion of the filter plugs (51, 61) and the wrapping with the wrapping sheets (52, 62) are carried out in one plane (T).
6. Method according to one or more of Claims 1 to 5, characterised in that the double-length tobacco rods (15, 16) are transferred from a multiple continuous rod-making machine to a filter-attaching machine.

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