EP1849371A1 - Spacer in a conveying drum in the tobacco industry - Google Patents

Abstract

The device has a covering strip section (58), in particular covering paper strip, which is supported over its preset breadth, where the device is formed as a spacer strip (59). The spacer strip is formed at a conveying segment (52) of a conveying drum, where the conveying segment and the spacer strip are formed as a single unit. A contact surface is formed over the breadth of the strip section in a continuous or discontinuous manner, when the spacer strip contacts with the strip section.

Description

The invention relates to a spacer device of a conveyor drum of the tobacco-processing industry, which supports a wrapping strip section, in particular a tipping paper leaflet, over a predetermined width of the wrapping strip section. Furthermore, the invention relates to a conveyor drum of the tobacco processing industry.

In filter tying machines, a double-length filter or mouthpiece is inserted between cut and longitudinally spaced tobacco sticks, with a glued connecting leaflet or padding plate then being attached to a tobacco stick-mouthpiece-tobacco stick group. In this case, the glued connection leaflet is conveyed via a suction roller to a padding device of the tobacco rod mouthpiece tobacco rod group which is conveyed with a defined, predetermined spacing distance or transverse axial distance fed.

In EP-A-1 466 535 a Filteransetzmaschine is described in which alternately every second group of articles is provided with padding on a conveyor drum and the other group of items is fed to a second pad paper feeding device. The conveyor drum is designed as Ärmchentrommel with lever segments for each one article, in which the lever segments for those articles which are provided on a first tipping paper feeder with a connecting plate, spacers, which prevent sticking of glued connection laminae to the surface of the lever segments.

Based on this prior art, the object of the present invention is to simplify the production of conveyor drums of the tobacco processing industry with spacers for connection papers, wherein it should be possible to facilitate the cleaning of a conveyor drum.

This object is achieved by a spacer device of a conveyor drum of the tobacco-processing industry, which supports a wrapping strip section, in particular a tipping paper leaflet, over a predetermined width of the strip section, which is further developed in that the spacer device is formed as a spacer strip.

According to the prior art, a plurality of juxtaposed needles are provided for supporting a tipping paper leaflet on a tipping paper drum, wherein on a segment body first holes must be drilled in order to use the needles that come into contact with the tipping paper leaflet and hold the leaflet subsequently. The production of such Segments with spacer need a high accuracy and is very time consuming. In addition, a repair of a broken spacer needle or a spacer is very expensive.

In contrast, the invention is based on the idea that the spacer bar is formed in one piece, for example, so that a wrapping strip section for a smoking article of the tobacco processing industry is held across the width of the strip section. Due to the one-piece design as a spacer strip, the production of conveyor drums, for example, a tamping paper drum is much easier because on the one hand, the production of spacer elements or spacing segments in the manufacturing process is simplified. In addition, the cleaning of a conveyor drum is improved with such spacer segments or spacer strips, since less glue settles on the contact surface of the glued pad paper leaves. In addition, if necessary, the cleaning brushes for a lining paper drum on a filter attachment machine omitted.

According to a preferred embodiment, it is provided that upon contact of the spacer strip with the wrapping strip section, the contact surface is formed continuously or interrupted over the width of the strip section. By a continuous contact surface or line of the strip portion is reliably supported. With an interrupted contact line, less glue will adhere to the contact surfaces.

For this purpose, it is further provided that the contact of the spacer bar with the Umhüllstreifenabschnitten is formed linear and / or punctiform.

In particular, the contact between the spacer bar and the wrapping strip section is rectilinear.

According to a preferred embodiment, a plurality of contacts or contact surfaces between the spacer strip and the cover strip portion are formed across the width of the portion, whereby a good support of the wrapping strip portion takes place.

In addition, in a preferred embodiment, the spacer strip is formed in one piece or in several parts, wherein, for example, a part of a multi-part spacer strip supports the glued envelope strip section over a predetermined width.

Moreover, it is advantageous if the spacer strip is arranged on a conveyor segment of the conveyor drum.

Further, preferably, the conveyor segment and the spacer bar are integrally formed. As a result, an easy handling of the spacer bar is achieved on the drum body of a conveyor drum.

A simple production also results from when the spacer bar and / or the conveyor segment are formed as an injection molded part or injection molded parts.

Moreover, it is advantageous in a development if the spacer strip is or is arranged as a component on the conveyor drum or the conveyor segment.

Furthermore, it is possible according to an embodiment that the spacer bar and / or the conveyor segments are formed as milled parts are.

In particular, the conveyor drum, on which the spacer strip is or is arranged, designed as a tumbling drum or pad paper drum.

The object is also achieved by a conveyor drum of the tobacco-processing industry, which is equipped with a spacer device or a spacer strip according to the invention, as described above.

Fig. 1

eine bekannte Filteransetzmaschine mit zwei Belagpapieraggregaten in einer schematischen Vorderansicht im Ausschnitt;

Fig. 2

eine Detaildarstellung einer Trommelanordnung aus Fig. 2;

Fig.3

einen schematischen Ausschnitt einer Fördertrommel aus Fig. 2;

Fig. 4

eine perspektivische Ansicht eines Fördersegments einer Fördertrommel gemäß dem Stand der Technik;

Fig. 5a, 5b, 5c

verschiedene Ansichten eines erfindungsgemäßen Fördersegments einer Fördertrommel;

Fig. 6a, 6b, 6c

verschiedene Ansichten eines weiteren erfindungsgemäßen Fördersegments einer Fördertrommel;

Fig.7

einen Längsschnitt durch ein weiteres Ausführungsbeispiel eines Fördersegments und

Fig. 8

einen Längsschnitt durch ein weiteres Ausführungsbeispiel eines Fördersegments.

The invention will be described below without limiting the general inventive idea by means of embodiments with reference to the drawings, reference being expressly made to the drawings with respect to all in the text unspecified details of the invention. Show it:

Fig. 1

a known Filteransetzmaschine with two Belagpapieraggregaten in a schematic front view in the neckline;

Fig. 2

a detailed view of a drum assembly of Fig. 2;

Figure 3

a schematic section of a conveyor drum of Fig. 2;

Fig. 4

a perspective view of a conveyor segment of a conveyor drum according to the prior art;

Fig. 5a, 5b, 5c

different views of an inventive Conveyor segment of a conveyor drum;

Fig. 6a, 6b, 6c

different views of another conveyor segment according to the invention a conveyor drum;

Figure 7

a longitudinal section through a further embodiment of a conveyor segment and

Fig. 8

a longitudinal section through a further embodiment of a conveyor segment.

In the following figures, identical or similar elements or corresponding parts are provided with the same reference numerals, so that a corresponding renewed idea is dispensed with.

In Fig. 1, a Filteransetzmaschine is partially shown in a front view fragmentary schematically, wherein the filter attachment machine via a drum assembly T for supplying tobacco rods from a schematically drawn cigarette rod machine P tobacco sticks double the length of use receives. A cigarette rod machine is known under the name "PROTOS" of the patent applicant.

On their conveyor to a compilation drum 21, the tobacco sticks double use length are cut and spread. On the assembly drum 21 are transported over a further drum assembly M double-length filter plugs, which are inserted between two longitudinally spaced tobacco rods. As a result, a sequence of tobacco rod filter plug tobacco rod groups arranged transaxially behind one another on the assembly drum 21 educated.

The assembled articles 50, 60 (see Figure 2) are transferred from the assembly drum 21 to a conveyor drum 22 and fed to a padger 10.1 for the first group 50 of assembled tobacco rod filter plug tobacco rod groups. A coating apparatus is in the patent DE-C-39 18 137 described in detail, the content of which is fully incorporated into the content of the present application.

A gluing paper strip 11.1 glued and conveyed in the dressing apparatus 10.1 is mounted on a cutting drum 12.1 of the knives of a cutterhead 13.1. cut into compound leaflets 40.1. The connecting leaflets 40.1 are attached to the articles of a first group 50 on the conveyor drum 22.

After adhering the connecting leaflets 40.1 to the articles 50 of the first group, the articles of the first (50) and second (60) groups are transported further, wherein the front end of the connecting leaflet 40.1. protrudes on the article 50. The articles 50, 60 are transported on to a folding star 23.1, which applies the front end of the connecting leaflets 40.1 to the articles 50. Subsequently, the articles 50, 60 are conveyed to a removal drum 24, wherein the removal drum 24 removes the articles 60 of the second group from the drum 22, which are not provided with a connecting blade.

The removal drum 24 transfers the removed articles 60 of the second group to a conveyor drum 25, which transports the articles 60 to a coating apparatus 10.2, in which a tipping paper strip 11.2 is conveyed. The second coating apparatus 10.2 has a cutterhead 13.2 which cooperates with the tipping paper strip 11.2 with a cutting drum 12.2 cuts in connecting papers.

The leaflets cut off from the tipping paper strip 11.2 are transferred to the tobacco articles or tobacco rod plug tobacco rod groups 60 and stapled. The front end of the connecting leaflet is then applied to the articles 60 on the conveyor drum 25 by means of a folding star 23.2. In this context, expressly to the European patent application EP-A-1 466 535 referenced, in which this process is shown and described.

The conveyor drum 25 conveys the articles 60 of the second group to a conveyor drum 26. The conveyor drum 26 at the same time picks up on the conveyor drum 22 further transported article 50 of the first group, so that the articles of the first (50) and the second (60) group alternately be placed on the drum.

Subsequently, the articles of the first and second groups 50, 60 are conveyed to a roll block rolling device 27 so that the bonding leaflets are completely wrapped around the tobacco rod filler plug tobacco rod groups 50, 60. The finished wrapped articles 50, 60 are subsequently transferred to a conveyor drum 28 and a further conveyor drum 29 and provided for further processing processes on a filter attachment machine. In particular, filter cigarettes of simple useful length are subsequently produced from the double-length filter cigarettes.

In Fig. 2, an embodiment of the conveyor drum 22 according to the prior art of Fig. 1 is shown in fragmentary detail. Article of a first and a second Group 50, 60 of cigarette filter plug-cigarette groups are conveyed by a compilation drum 21 in the direction of arrow to the removal drum 24.

From the assembly drum 21, articles 50, 60 are transferred to the conveyor drum 22. The conveyor drum 22 has movable arms with receiving troughs for articles 50, 60, so that the distance between the alternately arranged articles 50, 60 is variable and a speed adjustment of the articles 50, 60 takes place at the speed of the cutting drum 12.1. This is achieved by slowing down the corresponding articles 50, 60 before the transfer of the connecting leaflet 40.1 from the cutting drum 12.1 to the articles 50, 60, so that in the transfer point of the connecting leaflet 40.1 to the articles 50 the connecting leaflet 40.1 and the respective article 50 have the same speed.

After the transfer of the connection papers 40.1 to the articles 50, the articles 50, 60 on the conveyor drum 22 are accelerated. The Hebelärmchen for the article 50 with connecting leaflet 40.1 have needle-shaped spacers 37 for the connection leaflet 40.1 to prevent sticking of the connection leaflet 40.1 with the Hebelärmchen.

Following the acceleration, the front end of the connecting leaflets 40.1 is applied to the articles 50 by means of the folding star 23.1. While the articles 50 are conveyed on their drum 40 to the drum 26 (see Fig. 1) with their veneers 40.1, the articles of the second group, not yet provided with a connecting blade, are conveyed via the removal drum 24 to a conveyor drum 25 (cf. Fig. 1).

The deceleration and acceleration operations are carried out independently of the conveying speed of the drum 22 substantially in the area of the transfer of the connecting leaflet 40.1 to the articles 50, but also to adjust the speeds in receiving or dispensing the articles 50, 60 and the application of the connecting leaflet 40.1 to Articles 50.

In addition, by changing the distance between the articles 50 of the first group and the articles 60 of the second group, a sufficient distance is created so that the connecting leaflets 40.1 are applied to the articles 50 by the first coating apparatus 10.1, without the connecting leaflets 40.1 the articles of the Touch another group 60.

3 shows an embodiment of a conveying drum 22 (cf., FIG. 2) according to the prior art in the cut-out. The conveying direction of the arrangement shown in Fig. 3 is from right to left.

Fig. 3 shows an arrangement of a first conveyor segment 51 with a rod-shaped article 50 and a second conveyor segment 61 with a rod-shaped article 60. The first conveyor segment 51 has one or more support pins 39, on which a connecting plate 40.1 rests.

Between the conveyor segment 51 and the conveyor segment 61, a further conveyor segment is arranged on the drum body 32 of the conveyor drum 22. The supporting segment 52 for the supporting needles 39 is mounted on the drum body 32 together with the conveying segment 51 for the first group of articles as a structural unit.

The connecting leaflet 40.1 is applied to the articles 50 before the first covering device (see Fig. 1). By the support pins 39 gluing the glued on the underside connecting leaflets 40.1 is avoided with the conveyor segment 50. The support pins 39 run ahead of the receptacles for the article 60 in the second conveyor segments. The articles 60 on the second conveyor segment 61 are conveyed on by a second covering device, on which the articles 60 (of the second group) are provided with a connecting lamina.

The bearing surface of the connecting blades 40.1 on the support pins 39 is point-shaped, so that when the conveying segments 61, 62 are movable relative to each other, the glue pattern on the connecting blades 40.1 is retained.

In Fig. 4 is a perspective view of a conveyor segment 52 according to the prior art, wherein the conveyor segment 52 has on the top side by side arranged support needles 39 for the connecting plate. In order to secure the conveyor segment 52 on the drum body of a conveyor drum (see Fig. 3, reference numeral 22), bores 53 are further introduced into the conveyor segment 52, so that screws are screwed into the drum body via the bores 53.

The fine support needles 39 form a kind of spacer means for a connection paper or a tipping paper leaflet, so that the underside of the tipping paper leaflet with its glue pattern does not adhere to the upper side of the conveying segment 52.

In order to arrange the support pins 39 on the conveyor segment 52, it is necessary for the production that first several holes are drilled at predetermined distances from each other in the conveying segment 52 on the top. Thereafter, the support pins 39 made of metal, in particular steel, are inserted into the drilled holes and fixed, for example, by means of an adhesive or the like in the respective hole.

FIGS. 5a, 6a, 7a and 8a respectively show longitudinal sections through a conveyor segment 52 according to the invention. Corresponding cross sections through the conveyor segments 52 of FIGS. 5a and 6a are shown in FIGS. 5b, 5c, 6b, 6c.

5a shows the conveyor segment 52 with a spacer strip 59 according to the invention, which projects beyond the upper side of the conveyor segment 52. The spacer bar 59 supports a connecting leaflet or wrap strip portion 58 so that the wrap strip 58 is supported at its free end spaced from the conveyor segment 52 across its width.

The wrapping strip portion 58 preferably has a glue pattern on the underside so as to be connected to the articles by wrapping with a rod-shaped article or a rod-shaped smoking article group, for example in a rolling process. For reasons of better representability, the envelope strip section 58 is shown at a distance from the spacer strip 59 in FIGS. 5a, 5b and 5c.

FIG. 5b shows a cross section through the conveyor segment 52 and the spacer bar 59. From this drawing, it is apparent that the spacer bar 59 is applied to the conveyor segment 52 or inserted into a groove-shaped recess in an accurate fit and subsequently glued to the conveyor segment 52.

In the exemplary embodiment or the cross section according to FIG. 5c, it is shown that the spacer bar 59 and the conveyor segment 52 are made in one piece. In the functional use of the conveyor segment 52 on a conveyor drum, the spacer bar 59 supports covering paper flakes or wrapping strip portions such that the spacer bar 59, as a one-piece component, supports a predetermined or the entire width of the envelope strip section 58 via a linear contact.

In the embodiment according to FIG. 6 a, an embodiment of a spacer strip 59 is shown, wherein the spacer strip 59 has a plurality of teeth or tongue parts 69. The tongue portions 69 form a spacer bar 59 by means of which the jacket strip portion 58 is held over a predetermined width.

From Fig. 6a also shows that the spacer bar 59 is formed in several parts with multiple zones 69. In this case, the spacer strip 59 is composed of two strip bodies 71, 72, so that the overall result is a spacer strip 59 as a result of the multiple-row arrangement of a plurality of strip bodies 71, 72.

6 b shows a cross section through the conveyor segment 52 (FIG. 6 a) and a strip body 71, wherein the strip body 71 is introduced or arranged with its tongue parts 69 into a recess or depression of the conveyor segment 52.

Fig. 6c shows a variation of the conveyor segment 52, wherein the tongue portions 69 are integrally formed together with the conveyor segment 52, resulting in a simplified handling and manufacture. For example, the conveyor segment 52 and the spacer bar 59 are made as an injection molded part. Alternatively, the spacer bar 59 and the conveyor segment 52 are each made as an injection molded part and connected to each other.

In addition, the spacer bar 59 and the conveyor segment 52 are manufactured as milled components.

Further modifications of the spacer bar 59 are shown in FIGS. 7, 8, wherein FIG. 7 shows a serrated spacer bar 79, while FIG. 8 shows a spacer bar with a corrugated structure.

Characterized in that the spacer bar 59 is integrally formed over a predetermined width of a cover strip portion to be supported, depending on the structure of the spacer bar, a linear or point-like contact between the spacer bar and the envelope strip section to be supported or to be held connecting tab at the corresponding contact points.

LIST OF REFERENCE NUMBERS

10.1, 10.2

covering apparatus

11.1, 11.2

Covering paper strip

12.1, 12.2

cutting drum

13.1, 13.2

cutterhead

21

Assembly drum

22

conveyor drum

23.1, 23.2

Folded Star

24

removal drum

25

conveyor drum

26

conveyor drum

27

rolling device

28

conveyor drum

29

conveyor drum

32

drum body

37

spacer

38

holding segment

39

support needle

40.1

connecting paper

50

items

51

conveyor segment

52

conveyor segment

53

drilling

58

Wrapping strip section

59

spacer bar

60

items

61

conveyor segment

69

tongue pieces

71

strip body

72

strip body

T

Drum arrangement (Tobacco sticks)

P

Cigarette-making machine

M

Drum arrangement (filter sticks)

Claims (13)

Spacer means (39, 59) of a tobacco industry conveyor drum (22) supporting a wrapping strip section (40.1, 58), particularly a tipping paper leaflet, over a predetermined width of the wrapping strip section (40.1, 58), characterized in that the spacer means (59 ) is designed as a spacer strip (59). Spacer device (39, 59) according to claim 1, characterized in that upon contact of the spacer strip (59) with the envelope strip portion (40.1, 58), the contact surface is formed continuously or discontinuously across the width. Spacer device (39, 59) according to claim 1 or 2, characterized in that the contact of the spacer strip (59) and the wrapping strip portion (40.1, 58) is formed linear and / or punctiform. Spacer device (39, 59) according to claim 3, characterized in that the contact is rectilinear. Spacer device (39, 59) according to one of claims 1 to 4, characterized in that a plurality of contacts between the spacer bar (59) and the wrapping strip portion (40.1, 58) are formed. Spacer device (39, 59) according to one of claims 1 to 5, characterized in that the spacer strip (59) is formed in one piece or in several parts. Spacer device (39, 59) according to one of claims 1 to 6, characterized in that the spacer strip (59) on a conveyor segment (52) of the conveyor drum (22) is formed. Spacer device (39, 59) according to claim 7, characterized in that the conveyor segment (52) and the spacer strip (59) are integrally formed. Spacer device (39, 59) according to claim 7 or 8, characterized in that the spacer strip (59) and / or the conveyor segment (52) are formed as an injection molded part or injection-molded parts. Spacer device (39, 59) according to one of claims 1 to 7 or 9, characterized in that the spacer strip (59) is or is arranged as a component on the conveyor drum (22) or the conveyor segment (52). Spacer device (39, 59) according to one of claims 7 to 10, characterized in that the spacer strip (59) and / or the conveyor segments (52) are formed as milled parts. Spacer device (39, 59) according to one of claims 1 to 11, characterized in that the conveyor drum (22) is designed as a tumbling drum or lining paper drum. Conveying drum of the tobacco-processing industry with a spacer device (39, 59) according to one of claims 1 to 12.

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