EP1595463A1 - Conveying drum for rod-like articles of the tobacco industry - Google Patents

Abstract

The feed drum (22,25) for cigarette production has pivotally mounted lifting scoops (35,36) for rod shaped cigarette components (50,60). The feed drum has spacers (39) mounted on the scoops to supporting lifting segments (35,36) for engaging cigarette paper sheets (40.1,40.2).

Description

description

The invention relates to a conveyor drum for rod-shaped articles of Tobacco processing industry, with pivoting lever segments is provided for the rod-shaped article. Furthermore, the Invention a machine of the tobacco processing industry, in particular filter attachment machine.

In Filteransetzmaschinen be between cut and longitudinally spaced tobacco rods each have a filter piece or Mouthpiece inserted, followed by a glued connection papers to a Cigarette Mouthpiece Cigarette Group is attached. This is the glued connection leaflet via a suction roll of a covering device with a defined Dividing distance supplied to the cigarette mouthpiece group. Under a defined pitch is here in particular the determined by the length of the connecting blades certain pitch Understood.

Method and device of the type described above are used in particular for confectioning on a so-called. filter attachment Queraxial promoted filter cigarettes. Their performance in terms of per unit time produced and ejected Article has increased over the years again and again or had the increased performance of the upstream Cigarette rod machine can be adjusted.

In the document DE-C-39 18 137 (corresponds to US-5,054,346) is a Belagpapieraggregat described in a filter attachment machine. Here, the glued tiling paper as an endless tipping paper strip supplied and by means of a cutting device in individual leaflets or connecting leaflets cut. After the cut These compound leaves are separated and on the conveying speed the portion-wise transported cigarette filter cigarette groups brought.

The endless tipping paper strip is doing in front of a Glue apparatus up to a glue application point with a constant Paper speed transported. In the area between Glue application point and a suction roller for the cut Connecting papers vary the paper run length in the production cycle. After cutting and separating (pulling apart) are the now resulting tipping paper from the Suction roller held and at a constant speed transported above the paper speed of the endless tipping paper strip lies. The circumferential speed corresponds to this the suction roller of the speed of the portionwise Carried Cigarette Filter Piece Cigarette Groups.

The paper run length in the area between glue application and cut on the suction roll becomes continuous during the knife engagement shortened, so that in the paper run in front of the suction roll a lot arises. Although the conveying speed of the endless tipping paper strip below the withdrawal speed of the suction roll is always sufficient paper length available, so that the Paper is not moved relative to the roller during knife engagement and a clean cut is possible. After the cut will be the paper by elongating the paper path between glue application point and suction roller retracted relative to the roller and so on on average a paper speed according to the speed the produced cigarettes produced below the Circumferential speed of the suction roller is located. The paper speed thus constantly fluctuates around an average, with the amplitude of these velocity variations in the direct Ratio to the length of a single leaflet and the distance of the portionwise transported tobacco article stands.

Because to generate the fluctuations of the paper speed periodically the paper run length between Glue and Suction roll is varied, it comes to tension fluctuations in the Paper run and repercussions on the gluing process. Above a certain amplitude, this method is for Speed adjustment of paper run and tobacco by Adjustment of the paper speed has reached a limit, due to the tensile strength of the covering material and the quality the gluing is given.

In DE-A-196 26 679 is a filter attachment machine for a double-stranded cigarette making machine described in the two various conveying paths of the tobacco products for pinning and the reeling of the covering sheet are provided.

From EP-A-1 108 369 is known cigarette filter cigarette groups to provide a topping slip by using only each one first group of a series of cigarette filter cigarette groups on a first drum with a covering sheet of a first coating apparatus is provided and every second group from the conveyor the first group is promoted and on a second Drum with a covering sheet of a second coating apparatus is provided. The rollover of the two separate groups with the leaflets also take place in separate rolling devices. First After the respective rollover, the groups become one again alternating sequence of groups merged.

A generic conveyor drum of tobacco processing Industry for transporting rod-shaped articles is, for example from US-A-3 010 561 or EP-B-1 287 753.

Based on this prior art, it is the task of present invention to develop a conveyor drum such that a high product quality of smoking articles, even at higher Production services, guaranteed on a filter attachment machine is, with the cost of construction as small as possible should be kept.

According to a method for uniting smoking article components, where the articles of a first and second group with Cigarette-mouthpiece-cigarette groups each a covering device be fed and each with a compound leaflets Be provided, the articles of the first and second group a common rolling device and the articles of the first and second group in the rolling device of the connecting papers wrapped.

By means of the method it is possible to use a single-lane filter attachment machine to operate at a high production speed, since the tipping paper feed to the articles is doubly formed, so that one half of the article (first group) of a plating apparatus and the other half (second group) from another Covering device is provided with connection papers. By the subsequent one-lane rewinding of the articles is as well simpler structure than known from the prior art, possible, with a more compact design. By the Providing only a single rolling device will also Cost savings.

For this it is envisaged that the articles of the first and second Group are first supplied to a first pad means, the articles of the first group with a leaflet of the first pad means are provided, hereinafter the Articles of the first and second group on different routes be delivered to the common rolling device, the Article of the second group on its way to a second Seating device supplied and each with a connecting leaflet be provided.

In particular, the conveying speed of the article of the first and / or the second group before and / or after the transfer of the varies depending on the respective leaflets. Thus, an adaptation the speed relationships of the transported articles Tamping paper feed through a targeted control of the speed the tobacco article possible. The adaptation may during and after the gluing of the connecting leaflets regardless of their speed in the rest Production flow and paper speed in the filter tipping machine. During the speed change, the Tobacco articles individually, combined in pairs or any multiple and moves. Not only is the speed changing, but also the distance of the tobacco products.

In one development, the articles of the first and / or second group before handing over the leaflet braked.

Furthermore, the articles of the first and / or second group accelerated after the handover of the leaflet.

The speed change can be both a reduction than also an increase in the speed of the transported tobacco products relative to their initial speed or middle Mean transport speed. The decisive factor is the functional Separation of the speed change in the paper run from the Transport speed and the distance with the tipping paper leaflet to sticking tobacco articles. The equality of Transport speed of paper and tobacco items is local and temporally considered only for the gluing of the covering sheets required to the articles of the first and / or second group. Thus, the speed ratios in the tipping paper feed become on the speeds of transport of the pasted Matched tobacco articles.

Due to the speed variations, it is also possible the distance of the tobacco products to be transported during the To reduce sticking and thereby the production process to stabilize. At the same time the required distance to Separation of the tipping paper leaves minimized, the by the withdrawal of the paper (by the oscillator of the coating apparatus) reduced speed changes in the paper run reduced become. This results in less traction fluctuations in the Paper run between the glue application location and the cut of the Tipping paper strip. Overall, there is an improved glue application, a more precise glue pattern, less pollution, lower paper tear probability and an improved cut. Thus, the process ensures safe and stable production at the same time lesser sensitivity of the method Fluctuations in the properties of the production material.

A further improvement is achieved in that the connecting leaflets after handing over to the article of the first and / or second group are partially created. The mooring a free end of the connection leaflet to a cigarette filter piece-cigarette group is in the European patent application No. 020 235 24.8, whose contents are completely in the this patent application is incorporated. For investing the one free end of a connecting leaflet to a Tobacco is this a star or so-called. Roll star provided.

In one development, the articles of the second group of the common conveyor drum for the articles of the first and taken from the second group. Here are the articles of the first and second group before removing the article of the second Group supplied to the pad for the first group.

Furthermore, advantageously, the articles of the first and second group at the merger of the article groups arranged alternately on a conveyor drum, so that the Article of the common rolling device are supplied.

In particular, the connecting leaflets are attached to the articles of the first and / or second group at a constant speed to hand over.

Further, a machine of the tobacco processing industry, In particular provided Filteransetzmaschine, thereby is further developed that for the articles of a first and second Group of cigarette-mouthpiece groups each a lining device and a common rolling device are provided.

To adjust the speed ratios of the coating equipment and the conveyor drums is provided that for the receipt process the article with a connection papers at least one conveyor drum whose pitch for the articles of the first and / or second group are changeable.

To change the pitch of the articles is advantageously the conveyor drum designed as Ärmchentrommel. Here, the conveyor drum arms, levers or the like auf, whose pitch is variable in the conveying direction, so that the transported articles relative to the (average) conveying speed a conveyor drum accelerated or decelerated.

In an alternative development, the conveyor drum with, provided in particular pivotable lever segments. The Lever segments are preferably pivotable on a drum body arranged, wherein by pivoting the lever segments during the rotation of the conveyor drum transported Article based on the rotational speed of the conveyor drum accelerated or decelerated.

Furthermore, it is advantageous if at least one landing member for at least one free end of a covering sheet to the articles of first and / or second group is provided, so that the Pitch on a conveyor drum of partially connected Components is reduced and the pad sheet better at the subsequent rewinding is adhered to the article groups.

In a preferred embodiment is a multifunction drum intended for the articles of the first and second group.

In particular, the multifunction drum is designed such that at least one free end of a cover sheet to an article group is created and another article group of one Drum is removed. In this case, this unites Multifunctional conveying drum the function of a contact organ and a removal drum. By performing both functions, which can be executed simultaneously become production processes shortened at the machine. In addition, costs are saved because instead of two working organs, only one working organ is needed.

Further, a multi-functional drum described above provided for articles of the tobacco processing industry.

The object of the invention is achieved by a conveyor drum for Article of the tobacco processing industry, with swiveling Lever segments is provided for the articles, which further developed is that at least one spacer on the lever segment for holding a free end of a covering sheet provided is. Due to the lever segments, the pitch distances between the articles or article groups changeable, so that the articles be accelerated or decelerated on a conveyor drum. to Prevention of repetition will be on the execution of the explicitly referred to above lever segments.

Furthermore, the lever segments have troughs for the articles, so that the articles can be transported gently on a filter attachment machine are.

Furthermore, it is advantageous if the distance between second wells on a Lever segment larger than the free end of a leaflet between the articles.

Fig. 1

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

Fig. 2

eine Trommelanordnung im Ausschnitt;

Fig. 3

eine weitere Trommelanordnung in einer alternativen Ausführung und

Fig.4a, 4b

Detailansichten eines Hebelsegments in einer Vorderansicht und im Querschnitt.

The invention will now be described by way of example without limitation of the general concept of the invention with reference to exemplary embodiments with reference to the drawings, which are expressly referred to in the rest with respect to all details of the invention not explained in detail in the text. Show it:

Fig. 1

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

Fig. 2

a drum arrangement in the cutout;

Fig. 3

another drum assembly in an alternative embodiment and

Fig.4a, 4b

Detail views of a lever segment in a front view and in cross section.

In the drawings are the same or similar elements and / or parts provided with the same reference numerals, so that of a renewed presentation is omitted in each case.

In Fig. 1 is a Filteransetzmaschine in a front view shown in detail, wherein the filter attachment over a drum assembly T for feeding tobacco sticks of a cigarette rod machine, not shown here tobacco sticks double use length receives. On her way to a compilation drum 21, the tobacco sticks are cut and spread. On the compilation drum 21 are over Another drum arrangement M double-length filter pieces transported, each spaced between two longitudinally axially spaced Tobacco sticks are inserted. This will be on the compilation drum 21 a sequence of transaxially arranged one behind the other Cigarette Mouthpiece Cigarette Groups Made.

The assembled articles 50, 60 (see Fig. 2 and Fig. 3) on the assembly drum 21 are connected to a conveyor drum 22nd and transferred to a pad apparatus 10.1 for the first group 50 transported. In DE-C-39 18 137 is in detail a coating apparatus described in full in the content of this application is recorded.

The glued and promoted tipping paper strip is on a Suction roller 12.1 of the blades of a cutterhead 13.1 in Slip sheet 40.1 (see Fig. 2, 3) cut. The cut Covering sheets 40.1 are to the articles 50 of a first Transfer group on the conveyor drum 22.

Subsequently, the articles 50, 60 (see FIG. 2) become one Folding star 23.1 further transported, the front end of the tipping paper leaflet 40.1 applies to the articles 50. Below are the articles 50, 60 further conveyed and a removal drum 24th supplied, wherein the removal drum 24, the articles 60 of the second Group from the drum 22 removes that not with a connecting sheet are provided.

The removal drum 24 transfers the removed article 60 of second group to a conveyor drum 25, the Article 60 of the second group transported to a second coating apparatus 10.2 (see Fig.2). The second coating apparatus 10.2 has a Knife roller 13.2, the tiling paper strip in cooperation with a suction roll 12.2 cuts. The cut connecting leaves to the tobacco products or cigarette mouthpiece cigarette groups 60 handed over and pinned. The The front end of the connection leaflet is then replaced by a Folding star 23.2 applied to the articles 60 on the conveyor drum 25. The conveyor drum 25 conveys the articles 60 of the second group to a drum 26.

The conveyor drum 26 simultaneously takes on the conveyor drum 22 forwarded Article 60 of the first group, so that alternating the articles of the first (50) and second (60) groups be arranged on the drum 26. Below are the Articles of the first and second groups 50, 60 to a rolling device 27 transported with a roller block, so that the connecting sheets completely around the cigarette-mouthpiece-cigarette groups 50, 60 are wrapped around. The finished wrapped Articles 50, 60 are subsequently to a conveyor drum 28 and passed another conveyor drum 29 and for the rest Processing process provided on a Filteransetzmaschine.

In Fig. 2 is a detail view of the promotion of articles of a first and second group 50, 60 of cigarette mouthpiece cigarette groups from the assembly drum 21 to the Removal drum 24 shown in detail schematically.

From the assembly drum 21 are Article 50, 60 to the Passing conveyor drum 22. The conveyor drum 22 has movable arms with receiving troughs for the articles 50, 60, so that the distance between the alternately arranged articles 50, 60 is changeable and at the same time a speed adjustment the article 50, 60 on the conveyor drum 22 to the speed the suction roller 12.1 takes place. This is achieved by that before the handover of the connecting leaflet 40.1 to the articles 50, 60 the corresponding articles 50, 60 are slowed down 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 the same speed. After the handover of the connection leaflet 40.1, the articles 50, 60 on the conveyor drum 22 accelerates. Subsequently, the front end of the Connecting leaflet 40.1 to the article 50 by means of the folding star 23.1 is applied to the article 50. While the articles 50 with their Connecting leaflet 40.1 on the drum 22 to the drum 26th (Fig. 1) are transported, which are not yet with a Laminated article of the second group 60 from the removal drum 24 to a conveyor drum 25 (FIG. 1) promoted.

The deceleration and acceleration processes become independent from the conveying speed of the drum 22 substantially in Range of the transfer point of the connection leaflet 40.1 the articles 50 executed, but also to adjust the speeds at the time of admission or submission of articles 50, 60 and the application of the covering sheet 40.1 to the article group 50 executed.

In a development not shown here, the arms are like that formed that several articles 50, 60 from a Ärmchensegment be recorded. In particular, each one Articles of the first group and an article of the second group 60 on a Ärmchensegment be arranged in troughs. The distance the wells is designed such that when attaching the Facing sheet 40.1 to the first group 50 pieces the free one End of the leaflet between the articles 50, 60 the leading or lagging article not touched.

By changing the distance between the articles of the first group 50 and the articles of the second group 60 also created a sufficient distance, so that the Connecting leaflet 40.1 from the first pad 10.1 to the Article 50 will be created without the leaflets 40.1 touch the articles of the other group 60.

In Fig. 3, an alternative embodiment is shown, wherein the Apply the front end of the connecting leaflet 40.1 the article 50 by means of a Anlegeorgans 33 takes place and the Anlegeorgan 33 is formed such that the not with a connecting leaflets Article 60 taken simultaneously become. The contact member 33 thus has the functions of the folding star 23.1 of FIG. 2 and the removal drum 24 united. to Adapting the speeds of Articles 50, 60 relative to the Conveying speeds of the connecting blades 40.1, 40.2 are on the conveyor drums 22 and 25 lever segments 35 and 36 respectively provided so that by pivoting the lever segments 35 and 36, respectively, the speeds of the transported articles 50, 60 before the transfer point of the respective connecting leaflets 40.1, 40.2 be slowed down to the articles 50, 60 and after handover the connecting leaflets 40.1, 40.2 are accelerated.

For this purpose, the drums 22, 25 are functionally identical.

The lever segment 35 of the conveyor drum 22 has for transport the two article groups 50, 60 each have a receptacle for the Article group 50 and a recording for the article group 60 on. The distance between the receiving wells on the lever segment 35 is so determines that after applying the connecting leaflet 40.1 the trailing end of the connecting leaflet 40.1 the rear Article group 60 not affected. The lever segment 36 of the conveyor drum 25, however, has only one recording for the article group 60, because about the funding of the article group 60 not yet a leaflet provided article 60 of the second Coating device 10.2 (see Fig. 1) are supplied. The lever segments 35, 36 are on a pitch circle of the conveyor drum 22nd or 25 pivotally mounted and have a to the drum interior rejuvenating shape. In addition, the lever segments 35, 36 mandrel-like spacers 39, so that a resting the connecting leaflets 40.1, 40.2 on the lever segments is prevented.

In FIGS. 4a, 4b, the lever segments 35 are in section Conveyor drum 22 in a front view and in a cross-sectional view shown. The lever segments 35 are two Recordings for the articles 50, 60 are formed by the assembly drum 21 are taken over. The lever segments 35 are about a pivot axis 37, which is parallel to the axis of rotation of Drum 22 is aligned, pivoting. The pivoting of the Lever segment 35 takes place during the rotation of the drum 22 by means of a guide gear 38 (Fig. 4b), in which a cam is guided in a curved path on the machine side. The Lever segment 36 of the drum 25 is analog and functionally identical formed, with recordings provided only for an article group 60 are.

Each lever segment 35 each has a receiving trough for an article of the first group 50 and an article of the second Group 60 on. Between the shots are spacers 39 provided after the application of the connecting leaflet 40.1 the articles of the first group 50 a resting of the connecting leaflet avoids the lever segment. The distance between the receiving well is determined so that the trailing end of the leaflet 40.1 does not touch the article group 60.

In further, not shown embodiments, the Articles 50, 60 on the drum 22 to radial and / or tangential movable or movable levers are arranged.

By the subject matter of the present invention, it is possible the Filteransetzgeschwindigkeit a Filteransetzmaschine at a high format flexibility, since the tipping paper for the too wrapping tobacco article is supplied with two lanes and with a leaflet provided cigarette filter cigarette groups one-lane on a common rolling device rolled over become.

LIST OF REFERENCE NUMBERS

10.1

covering apparatus

10.2

covering apparatus

12.1

suction roll

12.2

suction roll

13.1

knife roll

13.2

knife roll

21

Assembly drum

22

conveyor drum

23.1

Folded Star

23.2

Folded Star

24

removal drum

25

conveyor drum

26

drum

27

rolling device

28

drum

29

drum

33

removal drum

35

lever segment

36

lever segment

37

swivel axis

38

guide mechanism

39

spacer

40.1

connecting paper

40.2

connecting paper

50

tobacco products
(Cigarette-mouthpiece-cigarette group)

60

tobacco products
(Cigarette-mouthpiece-cigarette group)

M

Drum arrangement (mouthpiece)

T

Drum arrangement (Tobacco sticks)

Claims (10)

Conveying drum (22, 25) for rod-shaped articles of the tobacco-processing industry (50, 60) provided with pivoting lever segments (35, 36) for the rod-shaped articles (50, 60), characterized in that at least one spacer (39) on the lever segment (35, 36) for holding the free end of a covering sheet (40.1, 40.2) is provided. Conveying drum (22, 25) according to claim 1, characterized in that the lever segments (35, 36) each have a trough or a plurality of troughs for the articles (50, 60). Conveying drum (22, 25) according to claim 2, characterized in that the distance between two troughs is greater than the free end of a covering sheet (40.1) between the articles (50, 60). Conveying drum (22, 25) according to claim 2 or 3, characterized in that the distance between two troughs of a lever segment (35) is determined so that the trailing end of an adhering to an article (50) covering sheet (40.1) the trailing article ( 60) not touched. Conveying drum (22, 25) according to one of claims 1 to 4, characterized in that the lever segments (35, 36) on a pitch circle of the conveyor drum (22, 25) are pivotally mounted. Conveying drum (22, 25) according to one or more of claims 1 to 5, characterized in that the lever segments (35, 36) in each case about a parallel to the axis of rotation of the conveyor drum (22, 25) arranged pivot axis (37) are arranged. Conveying drum (22, 25) according to one or more of claims 1 to 6, characterized in that the lever segments (35, 36) by means of a guide gear (38) during rotation of the conveyor drum (22, 25) are pivoted. Conveying drum (22, 25) according to one or more of claims 1 to 7, characterized in that the at least one spacer (39) is formed like a mandrel. Conveying drum (22, 25) according to one or more of claims 1 to 8, characterized in that a plurality of spacers (39) on a lever segment (35, 36) are arranged. Machine of the tobacco processing industry, in particular Filter attachment machine, with a conveyor drum (22, 25) after one of claims 1 to 9.

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