WO2012052111A1

WO2012052111A1 - Rod-guiding device of a machine in the tobacco-processing industry

Info

Publication number: WO2012052111A1
Application number: PCT/EP2011/004917
Authority: WO
Inventors: Michael Lüneburg
Original assignee: Hauni Maschinenbau Ag
Priority date: 2010-10-21
Filing date: 2011-10-04
Publication date: 2012-04-26
Also published as: DE102010042766A1

Abstract

The invention relates to a rod-guiding device (50) of a machine in the tobacco-processing industry for a longitudinally axially conveyed, rod-like article (32) in the tobacco-processing industry. The rod-guiding device (50) has a rod-guiding body (52) in the longitudinally axial conveying direction of the article (32), wherein the rod-guiding body (52) is of groove-like design in a guide-rail portion, wherein the guide-rail portion of the rod-guiding body (52) has at least one or more blowing-air openings, wherein the one or more blowing-air openings in the guide-rail portion is or are, or can be, connected to a blowing-air source (62). The invention also relates to a machine in the tobacco-processing industry, in particular a rod-making machine, and to a method for operating a machine in the tobacco-processing industry, in particular a rod-making machine in the tobacco-processing industry, for producing rod-like articles.

Description

Strand guiding device of a machine of the tobacco processing industry

description

The invention relates to a strand guiding device of a machine of the tobacco processing industry for a längsaxial subsidized, rod-shaped article of the tobacco processing industry. Furthermore, the invention relates to a machine of the tobacco processing industry, in particular strand machine, and a method for operating a machine of the tobacco-processing industry, in particular strand machine of the tobacco-processing industry, for the production of rod-shaped articles.

In the present context, rod-shaped articles of the tobacco-processing industry are to be understood to mean articles produced by the strand process and separated from a continuously formed strand, such as cigarettes, cigarillos, filter rods and the like.

CONFIRMATION COPY However, it is also possible to understand multisegment filter rods produced, for example, by the Applicant's machine "Merlin." Filter segment groups are then assembled transaxially, which are then joined longitudinally in a continuous process, for example by wrapping a wrapping material strip referred to the applicant.

In the rod making machines of the tobacco processing industry, such as cigarette rod machines or filter rod machines, bar-shaped articles are cut from a strand-produced endless and longitudinally conveyed strand using a cutter, and after cutting, the rod-shaped articles are further conveyed in the longitudinal axial direction.

The separated from the strand strand sections are then transferred from its longitudinal axial production conveyor track in a transverse axial conveyor track for further processing using a transfer device and transferred or transferred to a transversely moved to the strand conveyor track cross conveyor.

It is an object of the present invention to improve the promotion of rod-shaped articles of the tobacco processing industry on a stranding machine.

This object is achieved by a strand guiding device of a machine of the tobacco-processing industry, in particular extrusion machine, for a longitudinal axial subsidized, rod-shaped article of the tobacco industry, wherein the strand guiding device in longitudinal axial conveying direction of the article has a strand guide body, wherein the strand guide body is formed in a guide rail portion groove-shaped , where the Guide rail portion of the strand guide body has at least one or more air openings, wherein the at least one air opening in the guide rail portion is connected to one or more Blasluftquellen or is connectable.

The invention is based on the idea that after cutting a wrapped strand of the tobacco-processing industry using a cutting device in rod-shaped articles in the longitudinal axial conveying direction of the strand or the rod-shaped articles cut therefrom, these articles are conveyed further in a groove-shaped guide section having a guide groove, wherein as a result of the loading of the conveying section with blown air transversely to the conveying direction, the longitudinally axially conveyed rod-shaped articles are conveyed without friction or reduced friction to a transfer device in the strand guiding device.

Due to the friction-reduced or low-friction promotion of the rod-shaped article in the groove-shaped strand guide body, the friction between the surface of the guide groove of the guide rail portion and the conveyed rod-shaped articles is reduced, since by the application of blowing air promoted in the guide groove rod-shaped article on a kind of air cushion from the Cutting device to be transferred to the transfer device.

Due to the loading of the rod-shaped article in the guide of the strand guide device with blowing air perpendicular to the direction of movement of the article, it is possible to easily bridge longer conveyor lines, eg between a cutting device and a transfer device on the stranding machine, at the same time due to the floating transport of the rod - shaped article in the guide groove, the transport of the cut rod-shaped article is improved, whereby the cutting of the manufactured strand due to the low-friction onward transport of the rod-shaped article after cutting the further conveyed strand is cut into the same length rod-shaped article, so that no length variations of the article when cutting the produced Strangs arise.

In the context of the invention, "air opening" is understood in particular to include the term "blown air opening", "blown air duct" and also "blown air boring".

The strand guiding device according to the invention can be designed to be open in an upper region. For this purpose, it is useful to provide an air opening or from two sides air openings, which are arranged above the rod-shaped article to be conveyed and introduces blowing air above this article in the guide rail section or bring.

Preferably, an upper-side lid body is arranged in the groove-shaped guide rail portion of the strand guide body.

In addition, in one embodiment it can further be provided that the lid body has at least one or more air openings, wherein the at least one air opening of the lid body can be connected or connected to a blown air source, and / or that the lid body has a format strip. Here, the lid body is arranged above the guide groove of the guide rail portion, so that in cooperation of the lower-side air opening or air openings in the guide rail portion of the strand guide body and the or the upper-side air opening or air openings of the lid body a friction-reduced longitudinal axial transport of the cut strand-shaped article is achieved to the transfer device.

Furthermore, it is achieved in a simple manner by the lid body that the rod-shaped articles conveyed beneath the lid body do not escape from the guide groove of the strand guide body during their transport and thus are conveyed exactly in the longitudinal axial direction in the guide groove.

However, the escape of the conveyed rod-shaped article during transport out of the guide groove of the strand guide body can also be prevented if no cover body is provided.

Preferably, a control or regulating device is provided, by means of which the amount and / or the pressure of the supplied air is controlled or regulated. In particular, it may be provided to enter a larger quantity of blown air and / or a greater pressure in the upper region, preferably also above the conveyed article into the guide rail section or the guide groove of the guide rail section. The amount of blown air and / or the blown air pressure can thus also be controlled or regulated. In particular, this is preferably also a sensor or a plurality of sensors are provided by means of which the pressure or the amount of compressed air can be measured at different predetermined locations of the strand guide device according to the invention. For this purpose, reference is made in particular to the following figures. It can also be provided only a sensor.

In addition, it is advantageously provided that the at least one air opening of the guide rail section of the strand guide body and / or the at least one air opening of the cover body is acted upon or acted upon by blowing air in such a way that the article is conveyed without contact or conveyed in provided with one or more air openings guide rail section.

As a result, the article conveyed along the guide rail section is preferably conveyed or conveyed without contact in the area of the air opening or air openings and thus without contact with the surface of the guide groove or floating.

Preferably, the lid body is groove-shaped or U-shaped or formed with a guide surface in the longitudinal axial conveying direction of the article. By the U-shaped design or the arcuate guide surface of the rod or the article are gently conveyed in the groove-shaped guide rail section, wherein advantageously the guide surface in the manner of an inverted "U" is formed on the cover body.

In addition, a development of the strand guiding device is characterized in that the at least one air opening of the guide rail portion of the strand guide body and / or the at least one air opening of the lid body is formed as a slot or nozzle slot.

Furthermore, it is advantageous that at least one seal is arranged between the cover body and the guide rail section of the strand guide body, whereby the transport of the rod-shaped articles in the longitudinal axial direction is improved.

In particular, the cover body is above the guide groove of the guide rail section for the conveyed or to be conveyed article using one in each case Direction extending seal sealed against the guide rail portion of the strand guide body.

Moreover, it is advantageous in one embodiment of the strand guiding device that the air openings are formed uniformly or symmetrically, in particular mirror-symmetrically, in the circumferential direction of the article to be conveyed or to the vertical plane in which the article or articles are conveyed longitudinally.

Moreover, it is preferred in one embodiment that the strand guide body is designed as a profile rail.

Furthermore, the object is achieved by a machine of the tobacco processing industry, in particular filter rod machine or tobacco rod machine, for the production of rod-shaped articles of the tobacco-processing industry, wherein the articles are conveyed in the longitudinal direction or are conveyable using a strand guiding device described above. To avoid repetition, reference is expressly made to the above embodiment of the strand guiding device.

Moreover, an embodiment of the machine is distinguished by the fact that the strand guiding device is arranged downstream of a cutting device for the longitudinally conveyed article cut from an article strand.

In particular, the strand guiding device is arranged between a cutting device for cutting a strand of the tobacco processing industry into rod-shaped articles and an article transfer device. In addition, the object is achieved by a method for operating a machine of the tobacco processing industry, in particular rod maker of the tobacco processing industry, for the production of rod-shaped articles, wherein the articles are conveyed longitudinally using a strand guide device described above, wherein the articles during their longitudinal axial promotion In a guide groove of a guide rail portion of the chuck body with blowing air from one or more Blasluftquellen be acted upon, such that the längsaxial moving articles are conveyed without touching contact with the guide groove of the guide rail portion and / or the lid body.

Further features of the invention will become apparent from the description of embodiments according to the invention together with the claims and the accompanying drawings. Embodiments of the invention may satisfy individual features or a combination of several features.

The invention will be described below without limiting the general inventive idea by means of embodiments with reference to the drawings. With respect to all details of the invention not explained in detail, reference is expressly made to the drawings. Show it:

1 shows schematically an under the name "PRO¬

TOS "known cigarette rod machine in a perspective view;

2 schematically shows a cross section through a strand guiding device of the cigarette rod machine, Fig. 3 shows schematically a cross section through another

Embodiment of a strand guiding device of the cigarette rod making machine.

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 the cigarette rod making machine shown in Fig. 1, e.g. is known under the name "PROTOS" of HAUNI Maschinenbau AG, tobacco is fed in portions from a lock 1. A removal roll 3 of the predistributor 2 supplements a reservoir 4 with tobacco, from which a vertical conveyor 5 withdraws tobacco and a storage shaft 6 controlled feeds.

From the storage shaft 6 takes a pin roller 7 a uniform stream of tobacco, which is knocked out by a rollover roller 8 of the pins of the pin roller 7 and thrown on a circulating at a constant speed spreading cloth 9. A formed on the spreading cloth 9 tobacco fleece is in a viewing device

1 1, which consists essentially of an air curtain, the larger or heavier tobacco particles pass, while all other tobacco particles from the air into one of a pin roller

12 and a wall 13 formed funnel 14 are directed.

From the pin roller 12, the tobacco is thrown into a tobacco channel 16 against a rope conveyor 17, where the tobacco held by means sucked into a vacuum chamber 18 air and a tobacco rod is aufauert. An equalizer 19 removes excess tobacco from the tobacco rod, which is then placed on a run in synchronized cigarette paper strip 21. The cigarette paper strip 21 is withdrawn from a reel 22, passed through a printing device 23 and placed on a driven format tape 24. The format belt 24 transports the tobacco rod and the cigarette paper strip 21 through a format 26, in which the cigarette paper strip 21 is folded around the tobacco rod so that an edge still sticks, which is glued in a known manner by a Glimapparat, not shown. Then the bond is closed and dried by a Tandemnahtplätte 27.

A cigarette rod 28 thus formed passes through a strand density measuring device 29 which controls the leveling device 19 and is cut by a knife apparatus 31 into double-length cigarettes 32. The double-length cigarettes 32 are transferred from a transfer device 34, which has controlled arms 33, to a transfer drum 36 of a filter attachment machine 37, onto the cutting drum 38 of which they are divided into single cigarettes with a circular blade.

Conveyor belts 39, 41 promote excess tobacco in a arranged from the reservoir 4 container 42, from which the recycled tobacco is removed from the vertical conveyor 5 again.

Between the knife apparatus 31 and the transfer device 34, the cigarettes 32 designed as rod-shaped articles are conveyed longitudinally axially in a strand guiding device 50 (cf., FIG.

2 schematically shows a cross section through a strand guiding device 50, which extends between the cutting device as cutting device. formed knife apparatus 31 and the transfer device 34 is arranged. The strand guiding device 50 has on the underside a strand guiding body 52. The strand guiding body 52 has on its upper side a guide groove 54 in which the cigarettes 32 designed as rod-shaped articles are conveyed longitudinally, ie perpendicular to the drawing plane.

The strand guide body 52 has blown air bores 56, 58, which open into the guide groove 54. The blown air bores 56, 58 are arranged symmetrically or mirror-symmetrically with respect to one another and preferably open via nozzle slots in the guide groove 54.

At the bottom of the strand guide body 52, a cavity 60 is formed, which is acted upon by a blower 62 with pressure, so that the cavity 60 in communication with associated Blasluftbohrungen 56, 58, the excess pressure from the cavity 60 as blowing air in the guide groove 54 lead , whereby the longitudinally axially conveyed cigarettes 32 are supplied with blowing air at the bottom.

Above the guide groove 54, a lid body 70 is arranged, which is designed in particular as a pivotable upper guide for the conveyed in the guide groove 54 cigarettes 32. The lid body 70 has an upper cavity 72, which is acted upon by overpressure from a fan 74, so that air is passed from the cavity 72 via a blown air line 76 of the lid body vertically downwards via a nozzle outlet on the top of the cigarette 32.

In this case, the cigarettes 32, which are moved longitudinally in the guide groove 54, from below via the Blasluftbohrungen 56, 58th the strand guide body, and from the top via the Blasluftbohrung 76 with blown air, so that during the promotion of the cigarettes 32, the friction between the longitudinally moved cigarettes 32 and the inside or the surfaces of the guide groove 54 is reduced because the cigarettes 32 in a way Air cushion or a kind of air cushion are promoted during their promotion on the trained air cushion around the surface of the cigarette.

In longitudinal axial direction a plurality of blown air holes, preferably at regular intervals, in the strand guide body 52 and / or in the lid body 70 are formed or arranged one behind the other, so that the cigarettes 32 are promoted friction over a longer conveyor section in the strand guide means 50.

In addition, it is indicated in Fig. 2 that in a further embodiment between the lid body 70 and the strand guide body 52 on both sides of the guide groove 54, a seal 78 is formed to prevent the escape of air in the guide groove 54 in the conveyor section or prevent.

In particular, the blown air bores 56, 58, and 76, symmetrical to each other, in particular mirror-symmetrical to the conveying plane in which the center axes of the rod-shaped article or the cigarettes 32 are arranged.

In an embodiment not shown here, the lid body 70 alternatively or additionally on a format strip to form a defined guidance of the longitudinal axial moving cigarettes, wherein the format tape supports the conveying movement of the cigarettes 32. FIG. 3 shows a further schematic cross-sectional view through a strand guiding device 50 which is arranged between the knife apparatus 31 designed as a cutting device and the transfer device 34. The strand guide device 50 has on the underside a strand guide body 52 which is supported by a base body 61. The main body 61 has a cavity 60 into which blown air can be introduced via a blower 62. The main body 61 may be sealed to the strand guide body 52. The cavity 60 supplies four blown air holes 56, 56 'and 58, 58' with blown air, which pass in the direction of the arrow through the guide groove of the strand guide body 52 and are directed in the direction of the double-length cigarettes 32. The strand guiding body 52 also has two cavities 60 'and 60 ", which supply the blown air bores 57 and 57' or 59 and 59 'with blown air.Fig., 3 it is possible to apply to a lid body, as shown in FIG 2, to dispense without the conveyed article 32 being blown out of the guide groove.

The arrangement of the blown air holes 56 to 59 'are shown substantially symmetrically in Fig. 3. However, these can also be asymmetric.

There is also provided in FIG. 3 a control or regulating device 65 which, for reasons of clarity, are connected only to two sensors 63 and 63 'as well as two blowers 62, 62'. However, this should also be connected to the other sensors and the other fan. By means of the control or regulating device, it is possible to control or regulate the pressure or the amount of blast air.

It can be provided according to an embodiment that a single blower 62 is provided which is connected to all of the cavities 60, 60 'and 60 "via respective conduits so as to provide a uniform pressure, but it may also be contemplated that different pressures or amounts of blast air will be delivered through the respective cavities 60 through 60 "to the corresponding blower holes 56 to 59 supply.

The illustrated sensors 63, 63 ', 63 "provided in the respective cavities 60, 60' and 60" as well as the sensor 64 provided in the upper portion of the guide groove of the strand guide body 52 serve for pressure measurement and are correspondingly Although this is not shown for the sake of clarity in Fig. 3, connected to the control or regulating device 65. A flow measurement is best arranged with unillustrated sensors, indicated in the dashed lines between the blowers 62 to 62 "and the cavities 60 to 60". The control or regulation serves to supply the appropriate blowing air openings the right amount or with the correct pressure blowing air, so that the smoothest possible transport of the rod-shaped article 32 is made possible. In this case, it may in particular be provided that the pressure which is passed through the blower air bores 57, 57 'and 59, 59' is higher than the pressure which is passed through the blower air bores 56, 56 ', 58 and 58'.

Alternatively, more blowing air openings may also be provided in the upper region of the guide groove of the guide body 52 than in the lower region, so that it can be ensured that the conveyed rod-shaped articles 32 can not move upwards out of the guide groove during transport. All mentioned features, including the drawings alone to be taken as well as individual features that are disclosed in combination with other features are considered alone and in combination as essential to the invention. Embodiments of the invention may be accomplished by individual features or a combination of several features.

LIST OF REFERENCE NUMBERS

1 lock

2 pre-distributors

3 removal roller

4 storage containers

5 steep conveyors

6 stowage night

7 pin roller

8 deflection roller

9 sprinkler

1 1 viewing device

13 band

14 funnels

16 tobacco channel

17 strand conveyors

18 vacuum chamber

19 equalizer

21 cigarette paper strips

22 Bobine

23 printing device

24 format tape

26 format

27 tandem squares

28 cigarette rod

29 strand density meter

31 Knife apparatus

32 double-long cigarettes

33 arms

34 transfer device 36 transfer drum

37 filter attachment machine

38 cutting drum

39 conveyor belt

41 conveyor belt

42 containers

50 strand guiding device

, 52 strand guiding body

54 guide groove

56, 56 'blown air hole

57, 57 'Blown air hole

58, 58 'blown air hole

59, 59 'Blown air hole

, 60 ', 60 "cavity

61 basic body

, 62 ', 62 "blower

, 63 ', 63 "sensor

64 sensor

65 control or regulating device 70 lid body

72 cavity

74 blowers

76 blown air hole

78 sealing

Claims

Strand guiding device of a machine of the tobacco processing industry Claims

1. Strand guiding device (50) of a machine of the tobacco-processing industry, in particular a stranding machine, for a longitudinally conveyed, rod-shaped article (32) of the tobacco-processing industry, wherein the strand guiding device (50) in the longitudinal direction of conveyance of the article (32) comprises a strand guiding body (52) wherein the strand guide body (52) is groove-shaped in a guide rail section, the guide rail section of the strand guide body (52) having at least one or more air openings, wherein the at least one air opening in the guide rail section is connected to or connectable to a blown air source (62) ,

2. strand guide device (50) according to claim 1, characterized in that in the groove-shaped Führungsschienenab- Section of the strand guide body (52) an upper-side lid body (70) is arranged

Strand guiding device (50) according to claim 2, characterized in that the lid body (70) has at least one or more air openings, wherein the at least one air opening of the lid body (70) with a Blasluftquelle (74) is connectable or connected and / or that the lid body (70) has a format band.

Strand guide device (50) according to claim 1 or 3, characterized in that the at least one air opening of the guide rail portion of the strand guide body (52) and / or the at least one air opening of the lid body (70) is acted upon or acted upon by blowing air, that the article (32 ) is conveyed or conveyed without contact in the guide rail section provided with air openings

Strand guiding device (50) according to one of claims 2 to 4, characterized in that the lid body (70) is groove-shaped or U-shaped and / or formed with a guide surface in the longitudinal axial conveying direction of the article (32).

Strand guiding device (50) according to one of claims 1 to 5, characterized in that the at least one air opening of the guide rail portion of the strand guide body (52) and / or the at least one air opening of the lid body (70) is formed as a slot or nozzle slot.

Strand guiding device (50) according to one of claims 2 to 6, characterized in that between the lid body (70) and the guide rail portion of the strand guide body (52) at least one seal (80) is arranged.

The strand guiding device (50) according to any one of claims 2 to 7, characterized in that the lid body (70) above the guide groove (54) of the guide rail portion for the conveyed or to be conveyed article (32) using each one in the conveying direction extending Seal (78) against the guide rail portion of the strand guide body (52) is sealed.

Strand guiding device (50) according to one of claims 1 to 8, characterized in that in the circumferential direction of the conveyed or to be conveyed article (32) the blowing air openings evenly or symmetrically, in particular mirror-symmetrical, to the vertical plane in which the article (32) is conveyed longitudinally , are formed.

Strand guiding device (50) according to one of claims 1 to 9, characterized in that the strand guiding body (52) is designed as a profiled rail.

Machine of the tobacco processing industry, in particular filter rod machine or tobacco rod machine, for the production of rod-shaped articles (32) of the tobacco processing industry, wherein the articles (32) are conveyed in the longitudinal axial direction or are conveyable using a strand guiding device (50) according to one of claims 1 until 10.

Machine according to Claim 1 1, characterized in that the strand guiding device (50) is arranged downstream of a cutting device (31) for the article (32) cut from an article strand and conveyed longitudinally.

13. Machine according to claim 1 1 or 12, characterized in that the strand guiding device (50) between a cutting device (31) and an article transfer device (34) is arranged.

14. A method for operating a machine of the tobacco processing industry, in particular rod making machine of the tobacco processing industry, for the production of rod-shaped articles (32), wherein the articles (32) conveyed longitudinally using a strand guiding device (50) according to one of claims 1 to 10 be, wherein the articles (32) during its longitudinal axial promotion in a guide groove (52) of a guide rail portion of the strand guide body (52) are supplied with blown air from one or more Blasluftquellen such that the longitudinally axially moving article (32) without touching contact with the Guide groove of the guide rail portion and / or the lid body (70) are promoted.