EP1493341B1 - Double line filter assembling machine - Google Patents

Abstract

A twin-track assembly manufactures cigarettes in a process where rods of loose cigarette tobacco are rolled in cigarette paper to double length (10). Cigarettes advance first in a single line a point (25) where they then are moved alternately left and right into two lines. Each double length cigarette is cut at the mid-point and the resulting two cigarettes are separated for insertion of a single double-length filter between the two. The butt join between the filter and cigarette ends is closed by a wrapper (66,1, 66.2) and the filter is cut at the center point. The resulting two cigarettes are separated for packing.

Description

The invention relates to a method for the production of filter cigarettes, cigarette rods double length are cut into cigarette rods of simple length, between these a filter plug double length is introduced, this double-length filter plug with the two cigarette rods simple length by wrapping by means of a tipping paper leaflet is connected and by a following separation cut through the double-length filter plug cigarettes normal length of use arise, the cigarette rod filter plug cigarette rod groups are double-lane fed to a pad.

Furthermore, the invention relates to a device for the production of filter cigarettes with means for receiving cigarette rods of double length, comprising means for cutting these double-length cigarette rods in cigarette rods of simple length, with means for introducing filter plug of double length between the cigarette rods single length, comprising means for connecting the double-length filter plug to the two simple-length cigarette rods by wrapping with a tipping paper sheet separated from a supplied tipping paper strip by means of a cutter, means for effecting a cut through the double-length filter plug so as to produce normal length filter cigarettes , and means for feeding double-lane cigarette rod filter plug-cigarette rod groups to a pad means.

The production of filter cigarettes from cigarette rods, which are produced in the double-strand process, is known. Generic methods and devices are described in the patents DE-C-38 05 753, DE-C-37 06 753 and DE-C-37 06 751.

Here, DE-C-38 05 753 shows a process for the production of filter cigarettes made of double-stranded cigarette rods, in which double-length cigarette rods are guided in double lane.

DE-C-37 06 751 discloses a device for the production of filter cigarettes, which provides for a simultaneous, double-lane processing of two double-length cigarette rods two tipping paper feeds for two tipping paper strips.

DE-C-37 06 753 shows a method and an apparatus for transferring rod-shaped articles of the tobacco processing industry from a four-row to a two-row formation, wherein the rows of articles are formed in the transverse-axial direction.

Furthermore, European Patent Applications EP-A-895 724 and EP-A-895 725 each disclose methods of making Filtered cigarettes described in a filter attachment, in which double-length cigarette rods are made double-lane. After a cut of the double-length tobacco sticks the tobacco sticks simple length are continued in a staggered arrangement.

Based on this prior art, it is an object of the present invention to develop a two-lane Filteransetzmaschine such that the production speed and productivity are increased, the cost should be kept as low as possible.

This object is achieved by a process for the production of filter cigarettes, cigarette rods double length are cut into cigarette rods of simple length, between these a filter plug double length is introduced, this double-length filter plug with the two cigarette rods simple length by wrapping by means of a tipping paper leaflet is connected and through a subsequent separation cut through the double-length filter plug cigarettes normal working length arise, the cigarette rod filter plug cigarette rod groups are double-lane fed to a pad, which is further developed by the cigarette rods double length are arranged transversely axially behind the other in a row and in a subsequent step be arranged in two rows before cutting, wherein the cigarette rods of the two rows are spread apart in a comb-like manner and / or pulled apart.

As a result, the filter rods, arranged one behind the other in a row, in particular with a reduced pitch, are offset and arranged alternately in two rows in the grooves of a conveyor drum.

When spreading and forming two rows as two streams of material, the cigarette rods of the two rows overlap in an overlapping area, so that the cigarette rods are not completely pulled apart. By this comb spreading operation, the pitch between the cigarette rods of each row is particularly doubled, particularly in the area where the double-length cigarette rods are cut and pulled apart to allow a filter plug to be inserted. This allows for a secure adherence of the tipping paper leaflet to the formed cigarette rod filter plug cigarette rod groups. Thus, drums with a reduced pitch are used on a filter attachment machine, so that overall the productivity of the machine is increased. Further, by the comb-like pulling apart, in particular double-length, cigarette rods, with the formation of an overlap region, the lateral movement and spreading of the cigarette rods is optimized or limited, without the quality of the filter cigarettes is limited during manufacture. This also has the advantage that the conveying trough can be made with a width smaller than twice the double-length cigarette rods. This leads to material savings and a reduction in the dimensions of a filter attachment machine.

In particular, prior to adhering the tipping paper leaflets, the pitch between the cigarette rods is reduced. Due to the double-lane conveyance of the double-length cigarette rods with reduced pitch, more cigarette rods are arranged on a conveyor drum, so that at a constant machine speed, the production speed of the filter attachment machine is increased. Here, the cigarette rods from a conveyor drum with a greater distance at least pass a conveyor drum with a smaller pitch. The term "pitch" is understood to mean the distance between the cigarette rods arranged one behind the other in the conveying direction. In particular, the pitch is greater than the length of the tamping paper leaflets to be adhered.

Preferably, in order to carry out the method on a double-lane filter tipping machine, the double-length cigarette rods are arranged in two rows in order to transport them to the covering devices.

Advantageously, the cigarette rod filter plug-cigarette rod groups of each row are conveyed during the tacking of the tipping paper leaflet at twice the reduced pitch. By fanning a single-row flow of material on double-length filter rods and the formation of two comb-toothed rows of cigarette rod filter plug cigarette rod groups between the articles of each row in the transverse axial direction to the articles a sufficient distance is created, so that the article groups a correspondingly long tipping paper leaflet is attached without the tipping paper leaflet touching the following article group. This is preferably done at a reduced pitch that is used with a single-row flow of material to cigarette rod filter plug-cigarette rod groups, i. to comply with a single-lane filter attachment machine.

A further improvement is achieved by, after adhering the tipping paper leaflet, rolling the cigarette rod filter plug cigarette rod groups of each row separately such that the tipping paper leaflets of a row do not interfere with the cigarette rod filter plug cigarette rod groups the other row in contact.

In a further development, the cigarette rod filter plug cigarette rod groups of each row are separately cut into filter cigarettes of normal use length by a respective cutting device. By separately cutting the comb-like staggered rows by means of a separate cutting device longer life can be achieved on a machine. This leads to a safe operation and longer maintenance intervals on the machine.

Further, it is preferable that the cut filter cigarettes of normal use length are arranged in two parallel rows.

In particular, the filter cigarettes of the parallel rows are conveyed at a reduced pitch.

Moreover, it is proposed in a preferred embodiment of the invention that the tipping paper leaflets are cut offset from each other for each row, since the subsidized cigarette rod filter plug cigarette rod groups are arranged in two rows and offset from each other.

Moreover, it is advantageous if the covering paper leaflets are guided parallel to the cutting device of a lining apparatus. In this case, in particular, the cutting device consists of two separate cutting devices arranged parallel to one another for the tipping paper strips fed in parallel. For this purpose, in particular double-wide tipping paper can be used, which is cut into two tipping paper strips.

A further solution of the problem consists in a device for the production of filter cigarettes with means for receiving cigarette rods double length, with means for cutting these double-length cigarette rods in cigarette rods of simple length, with means for introducing filter plug twice the length between the cigarette rods of simple length, with means for joining the double-length filter plug with the two cigarette rods of simple length by wrapping with a tipping paper, which is separated by means of a cutter from a supplied tipping paper strip, with means for performing a separation cut through the double-length filter plug, so that filter cigarettes normal working length arise, and means for Feeding double-lobed cigarette rod filter plug-cigarette rod groups to a pad means, in that a conveying means is provided to the transverse axial hinterein the double-length cigarette rods arranged in a row are to be arranged in two rows in a subsequent step before cutting, the cigarette rods of the two rows being spread apart and / or pulled apart like a comb.

In a preferred embodiment, the apparatus for simultaneous, double-lane processing of cigarette rod filter plug cigarette rod groups two tamping paper feeders for two tipping paper strips, wherein the tipping paper strips have a parallel trajectory when they are supplied to the cutting device.

For this purpose, it is provided that the cutting device has two cutting devices arranged parallel to one another, so that the cutting devices independently cut the tipping paper strips guided in parallel.

In particular, each cutting apparatus is formed by means of a suction roll and a knife roll.

Advantageously, it is provided that the suction and knife roller of a cutting device out of phase or offset from the suction and knife roller of the other cutting apparatus works. As a result, the tipping paper leaflets are offset from each other and offset to the comb-like arranged smoking article components, i. Cigarette butt filter plug cigarette rod groups, tacked. For this purpose, the cutting segments of the cutting devices are offset from each other.

Fig. 1

eine schematische Darstellung einer Trommelanordnung einer doppelbahnigen Filteransetzmaschine;

Fig. 2

eine schematische Darstellung des Verfahrensablaufes gem. der in Fig. 1 dargestellten Trommelanordnung und

Fig. 3

eine perspektivische Darstellung einer erfindungsgemäßen Schneideinrichtung im Ausschnitt.

The invention is hereinafter without limiting the general inventive concept by means of embodiments below With reference to the accompanying schematic drawings described by way of example, to which reference is otherwise expressly made with respect to the disclosure of all unspecified in the text details of the invention. Show it:

Fig. 1

a schematic representation of a drum assembly of a double-lane Filteransetzmaschine;

Fig. 2

a schematic representation of the procedure according to. the drum assembly shown in Fig. 1 and

Fig. 3

a perspective view of a cutting device according to the invention in the neck.

In the following figures, the same or similar elements or corresponding parts are designated by the same reference numerals, so that is dispensed with a corresponding new ideas and only deviations of the embodiments shown in these figures are compared with the first embodiment explained.

In Fig. 1, a drum arrangement of a double-lane filter attachment machine is shown schematically in the view. The corresponding method sequence is shown schematically in FIG. 2 accordingly.

In a double-lane filter attachment machine, cigarette rods 10 of double use length are supplied by a cigarette rod maker (not shown). The cigarette rod machine can work in both single-stranded and double-stranded processes.

In the filter attachment machine, the single-row promoted cigarette rods 10 are transferred from a conveyor drum 23 to a further conveyor drum 24. The cigarette rods 10 are arranged in the conveying direction transversely axially behind one another in a row. When transferring from the conveyor drum 23 to the conveyor drum 24 of the transverse axial spacing between the successively arranged cigarette rods 10 double use length is reduced. According to the invention, all subsequent conveying drums for the cigarette rods 10 have a reduced distance between the receiving troughs or grooves compared to the conveying drum 23.

After the transfer of the cigarette rods 10 double the use length, the cigarette rods 10 are transferred to a conveyor drum 25 and pulled apart on this conveyor drum like a comb, so that two rows of transversely axially successively arranged rows of cigarette rods 10 arise. Here, the cigarette rods 10 form an overlap region by the two rows are tooth-like offset from each other. After the transfer of the mutually offset double row of cigarette rods, the cigarette rods are cut on a conveyor drum by means of a knife 26 for each row in the middle. Characterized in that a respective knife 26 or a cutting device is provided for each row, a long and safe operation of the filter attachment machine is ensured. This leads to longer production times, so that the machine has to be maintained at longer maintenance intervals.

Following the transfer of the cut cigarette rods to a conveyor drum 28, the cut cigarette rods of each row are pulled apart on a spreading drum, so that between two longitudinally arranged cigarette rods easier Use length is created a distance to each insert a double-length filter plug between the longitudinally spaced cigarettes.

Due to the comb-like pulling apart of the cigarette rods twice the length of use, the cigarette rods of a row at twice the distance. As a result, a sufficient cross-axial distance between the cigarette rods is provided, so that after inserting a filter plug twice the length of a tipping paper leaflet can be attached to the cigarette rod filter plug-cigarette rod group on a conveyor drum 30. After the transfer of the cross-axially spaced double-row arranged cigarette rods to a compilation drum 29, between each two cigarette rods by means of a loading drum 49 is inserted in each case a filter plug double the use length between the spaced cigarette rods. The double length filter plugs are designated by the reference numeral 12 (see FIG. 2).

The filter plugs 12 are transferred from a dual hopper filter magazine via removal drums 45, 46 to a conveyor drum 47, then the filter plugs are delivered via a conveyor drum 48 to a loading drum 49, by means of the filter plugs are placed on the assembly drum 29 between two longitudinally spaced cigarette rods.

Subsequently, the assembled smoking article components of each row are provided with a tipping paper leaflet 66.1, 66.2 on a double-lane tipping apparatus.

After the attachment of the tipping paper leaflets 66.1, 66.2 to the staggered rows, the rewinding of the smoking article components takes place on a conveying drum 31. Subsequently the rolled articles are transferred to a drum 32 on which the joined articles are cut so that filter cigarettes of simple use length are formed. For this purpose, a cutting blade 35 is provided for each row. By the cutter of each row by means of a cutting blade 35, the wrapped smoking article components are severed safely over an extended period of time, since the wear on the cutting blades 35 is reduced or halved by the provision of a second cutting device as opposed to a cutting device for all cigarette rods -Filterstopfen-cigarette rod groups. In addition to an achieved increased reliability, the maintenance intervals are extended to the double-lane Filteransetzmaschine. Following cutting, the cut filter cigarettes are spread on a conveyor drum 33 so that two parallel rows of filter cigarettes are formed. The filter cigarettes of each row have due to the spreading the same pitch as the cigarette rods 10 on the conveyor drum 24. Subsequently, the double-row filter cigarettes are delivered via a conveyor drum 34 testing facilities for the filter cigarettes.

Due to the doppelbahnige staggered position of the double-length cigarette rods 10 and the double cigarettes on the conveyor drums a lower machine depth of the filter attachment machine is possible. In addition, the dual-lane filter feed from a dual-hopper ensures safe removal of the filter plugs and trouble-free operation.

In Fig. 3, the coating apparatus for the double-lane filter attachment machine is shown schematically in a perspective view. Here are two-lane and parallel to each other tipping paper strips 60.1, 60.2 to the cutting apparatus on a roll 63 and the oscillators 65.1, 65.2 supplied. For each tipping paper strip 60.1, 60.2, a separate cutting apparatus is provided, wherein the two suction rolls 51.1, 51.2 and the knife rollers 52.1, 52.2 are each arranged coaxially. In order to tack tipping paper leaflets to the comb-like alternating and double-rowed smoking article components, the oscillators 65.1, 65.2 are operated out of phase. In addition, the mode of operation of the further independent cutting apparatuses is also phase-shifted or offset from one another.

For the supply of tipping paper advantageously double-width tipping paper is withdrawn from a reel. Subsequently, the double-width paper web is separated into two tipping paper strips, then the tipping paper strip pass through a Beleimenrichtung in which it is glued. After leaving the Beleimeinrichtung the tipping paper strips are brought to a distance from each other and thereby get a separate, parallel trajectory. In addition, reference is made to DE-C-37 06 751 for further details with regard to the coating apparatus, which is fully incorporated in the present patent application.

LIST OF REFERENCE NUMBERS

10

cigarette rod

12

filter plug

23

conveyor drum

24

conveyor drum

25

conveyor drum

26

cutting blade

27

conveyor drum

28

conveyor drum

29

Assembly drum

30

conveyor drum

31

conveyor drum

32

conveyor drum

33

conveyor drum

34

conveyor drum

35

cutting blade

45

removal drum

46

removal drum

47

conveyor drum

48

conveyor drum

49

insert drum

50

covering apparatus

51.1, 51.2

suction roll

52.1, 52.2

knife roll

60.1, 60.2

Covering paper strip

63

role

65.1, 65.2

oscillator

66.1, 66.2

Tipping paper

Claims (14)

1. Method for producing filter cigarettes, in which double-length cigarette rods (10) are cut into single-length cigarette rods, between the latter a double-length filter plug (12) is introduced, this double-length filter plug (12) is joined to the two single-length cigarette rods (10) by wrapping with a covering paper sheet (66.1, 66.2) and cigarettes of normal use length are obtained by a subsequent separating cut through the double-length filter plug (12), the cigarette rod/filter plug/cigarette rod groups being fed in two tracks to a covering device (50), characterised in that the double-length cigarette rods (10) are arranged transverse-axially one behind the other in a row and are arranged into two rows in a subsequent step before the cutting, the cigarette rods (10) of the two rows being spread relative to one another and/or drawn apart from one another like a comb.
2. Method according to Claim 1, characterised in that the separating distance between the cigarette rods (10) is reduced before the attachment of the covering paper sheets (66.1, 66.2).
3. Method according to one of Claims 1 and 2, characterised in that the cigarette rod/filter plug/cigarette rod groups of each row are conveyed with twice the reduced separating distance during the attachment of the covering paper sheet (66.1, 66.2).
4. Method according to one of Claims 1 to 3, characterised in that the cigarette rod/filter plug/cigarette rod groups of each row are rolled separately after attachment of the covering paper sheet (66.1, 66.2).
5. Method according to one or more of Claims 1 to 4, characterised in that the cigarette rod/filter plug/cigarette rod groups of each row are cut separately by a respective cutting device to form filter cigarettes of normal use length.
6. Method according to Claim 5, characterised in that the filter cigarettes are arranged to form two parallel rows.
7. Method according to one or more of Claims 1 to 6, characterised in that the filter cigarettes of the parallel rows are conveyed with a reduced separating distance.
8. Method according to one or more of Claims 1 to 7, characterised in that the covering paper sheets (66.1, 66.2) for each row are cut in a manner offset relative to one another.
9. Method according to one or more of Claims 1 to 8, characterised in that the covering paper sheets (66.1, 66.2) are guided parallel up to the cutting device of a covering apparatus (50).
10. Apparatus for producing filter cigarettes having means for receiving double-length cigarette rods (10), having means for cutting (26) these double-length cigarettes into single-length cigarette rods, having means (49) for introducing double-length filter plugs (12) between the single-length cigarette rods, having means (50) for joining the double-length filter plug to the two single-length cigarette rods by wrapping with a covering paper sheet (66.1, 66.2) which is severed from a fed covering paper strip by means of a cutting device, having means (35) for executing a separating cut through the double-length filter plug (12), so that filter cigarettes of normal use length are obtained, and having means for feeding cigarette rod/filter plug/cigarette rod groups arranged in two tracks to a covering device (50), characterised in that a conveying means (25) is provided in order to arrange the double-length cigarette rods (10), arranged transverse-axially one behind the other in a row, into two rows in a subsequent step before the cutting, the cigarette rods (10) of the two rows being spread relative to one another and/or drawn apart from one another like a comb.
11. Apparatus according to Claim 10, characterised in that, for a simultaneous, two-track processing of the cigarette rod/filter plug/cigarette rod groups, two covering paper feeds for two covering paper strips (60.1, 60.2) are provided, the covering paper strips (60.1, 60.2) running on a parallel path during their feeding to the cutting device.
12. Apparatus according to Claim 10 or 11, characterised in that the cutting device has two cutting apparatuses arranged parallel to one another.
13. Apparatus according to Claim 12, characterised in that each cutting apparatus is formed by means of a suction roller (51.1; 51.2) and a knife roller (52.1; 52.2).
14. Apparatus according to Claim 13, characterised in that the suction roller and knife roller (51.1, 52.1) of a cutting apparatus works in an offset or phase-shifted manner relative to the suction roller and knife roller (52.1; 52.2) of the other cutting apparatus.

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