EP2965640B1 - Inspection of rod-shaped articles, in particular filter cigarettes - Google Patents

Inspection of rod-shaped articles, in particular filter cigarettes Download PDF

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Publication number
EP2965640B1
EP2965640B1 EP15174753.2A EP15174753A EP2965640B1 EP 2965640 B1 EP2965640 B1 EP 2965640B1 EP 15174753 A EP15174753 A EP 15174753A EP 2965640 B1 EP2965640 B1 EP 2965640B1
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EP
European Patent Office
Prior art keywords
rod
shaped articles
sections
drum
rows
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP15174753.2A
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German (de)
French (fr)
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EP2965640A1 (en
Inventor
Denis Baron
Tobias Leifels
Norbert Hohenstein
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koerber Technologies GmbH
Original Assignee
Hauni Maschinenbau GmbH
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Application filed by Hauni Maschinenbau GmbH filed Critical Hauni Maschinenbau GmbH
Priority to PL15174753T priority Critical patent/PL2965640T3/en
Publication of EP2965640A1 publication Critical patent/EP2965640A1/en
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    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24CMACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/32Separating, ordering, counting or examining cigarettes; Regulating the feeding of tobacco according to rod or cigarette condition
    • A24C5/34Examining cigarettes or the rod, e.g. for regulating the feeding of tobacco; Removing defective cigarettes
    • A24C5/3412Examining cigarettes or the rod, e.g. for regulating the feeding of tobacco; Removing defective cigarettes by means of light, radiation or electrostatic fields

Definitions

  • the invention relates to a drum assembly of a machine of the tobacco processing industry, in particular drum assembly of a filter attachment machine, for transversely conveying of rod-shaped articles of the tobacco processing industry, in particular filter cigarettes, with a rotatable conveyor drum for the rod-shaped article. Furthermore, the invention relates to a machine of the tobacco processing industry, in particular filter attachment machine, for the production of rod-shaped articles, in particular filter cigarettes. Moreover, the invention relates to a method for checking transversely promoted rod-shaped articles of the tobacco-processing industry, in particular for checking liquid-filled capsules in filter sections of filter cigarettes.
  • filter attachment machine is a device or machine for the production of filter cigarettes understood with means for receiving tobacco rods of double length with means for cutting these double-length tobacco sticks in tobacco sticks simple length, with means for introducing filter plug double length between the tobacco sticks simple length, with means for Connecting the double-length filter plug with the two tobacco rods of simple length by wrapping with a tipping paper sheet which is severed by means of a cutter from a supplied tipping paper strip, with means for subsequently making a cut through the double-length filter plug so that filter cigarettes of normal working length are formed.
  • a leak test and / or at least one head end test and / or a ventilation degree test and / or at least one optical test of the cigarettes are carried out in the filter attachment machine.
  • the leak test each individual cigarette is exposed to test air on a test drum.
  • the products or rod-shaped articles or filter cigarettes are examined by optical testing equipment on a filter attachment machine.
  • quality features are typically detected on the products of the tobacco processing industry such as holes, dimensions, object identification, punches, glue application, stains, the presence of filter elements, damage, and the like.
  • products of the tobacco-processing industry are in particular rod-shaped Article or objects such as cigarettes, filter rods, multi-segment filter rods and the like understood.
  • it is off DE-A-10 2004 040 912 a device for optically controlling tobacco processing industry products comprising an image capture device, wherein gradient index lenses are used to reduce the distance between the image capture device and the products to be controlled.
  • the measuring arrangement has a sensor unit in which a transmitter and a receiver which is at a distance from the transmitter and is temporarily in contactless contact with the transmitter are assigned.
  • EP 2 848 133 A1 another arrangement and another method for checking rod-shaped articles of the tobacco processing industry.
  • EP 2 796 061 A1 describes an apparatus and a method for measuring capsules in cigarette filters.
  • the object of the present invention is to improve the quality in the production of rod-shaped articles of the tobacco-processing industry on a machine, e.g. in the manufacture of filter cigarettes on a filter attachment machine.
  • a drum assembly of a machine of the tobacco-processing industry in particular drum arrangement of a filter attachment machine for Queraxialen conveyance of rod-shaped articles of the tobacco industry, especially filter cigarettes, with a rotatable conveyor drum for the rod-shaped article, wherein the conveyor drum in the circumferential direction two juxtaposed Having rows of successively arranged receiving troughs for each of a number of rod-shaped articles, wherein the conveyor drum is arranged to promote rod-shaped articles, which are accommodated in two rows next to each other and each transverse axial succession in receiving troughs of the conveyor drum, upon rotation of the conveyor drum in the transverse axial direction, wherein for each row of receiving wells in each case one, preferably stationary, measuring device is provided with a unilaterally open passageway for portions of the rod-shaped article and in the passage of each measuring device, preferably laterally projecting from the respective receiving troughs, located in the passageway sections of the rod-shaped article each traversing the unilaterally open passageways of the measuring devices each with
  • the invention is based on the idea that a machine of the tobacco processing industry, in particular Filteransetzmaschine, a drum assembly having a plurality of conveyor drums, wherein on a conveyor drum of the drum assembly, a measuring device for checking portions of the rod-shaped articles or filter cigarettes is provided.
  • a measuring device for example, liquid-filled capsules in filter plugs of the cross-axially funded filter cigarettes checked on a Filteransetzmaschine after their preparation at the Filteransetzmaschine.
  • a (single) measuring device with a passageway for the sections is provided provided the rod-shaped article.
  • each case one measuring device is provided in each case with two paths of rod-shaped articles arranged transaxially one behind the other, each having a passage channel for the sections of the rod-shaped articles of a row.
  • the filter or filter plug of the filter cigarettes are checked.
  • this filter or filter sections which are provided with liquid-filled capsules, checked.
  • a test device in the form of a microwave measuring device with a microwave resonator for the sections to be tested or filter of the filter cigarettes is provided, in which case the rod-shaped article with the respective sections to be tested by a unilaterally open lateral passage channel during rotation of the conveyor drum be and traverse the passageway of the measuring device, so that the introduced into the passageway sections, in particular filter sections of the filter cigarettes, on its conveying path through the passageway, eg a microwave measuring field to traverse in at least one microwave resonator of the measuring device.
  • the rod-shaped articles or filter cigarettes transversely laterally into the microwave measuring device or Immerse a microwave resonator and there pass through the measuring field or resonant microwave measuring field excited therein.
  • the sections or filter sections to be tested completely enter a microwave measuring field which has a high field strength in the resonator.
  • the measuring devices are also specially designed for this cross-axially promoted lateral passage in order to allow the corresponding passage through the microwave resonator.
  • the quality of the filter cigarettes is monitored in the production of filter cigarettes on a Filteransetzmaschine before delivering the single-layer mass flow of filter cigarettes to a mass flow conveyor with multiple layers of filter cigarettes, being discharged depending on the measurement results filter cigarettes with defective capsules in filter sections from the further production process.
  • the sections of filter cigarettes, of two side-by-side, single-layer individual streams with filter cigarettes arranged transaxially one behind the other in each case are detected on a double-web filter tying machine.
  • the measuring device for each row of filter cigarettes or rod-shaped articles according to the invention is formed in each case with an elongated, open on one side and in particular U-shaped passage for the sections of the rod-shaped article to be tested, wherein for performing the test, the filter cigarettes on one side with a loaded with suction with holder a receiving trough for the filter cigarettes are kept so that the portions to be tested are introduced into the fork-shaped measuring device with the open passageway respectively.
  • the pairs of filter cigarettes of both rows are checked at the same time on the double-track filter tying machine.
  • the paired filter cigarettes for the examination are longitudinally axially spaced from each other.
  • the sections to be tested of the rod-shaped article of the two rows face each other.
  • the filter sections of the filter cigarettes to be tested are arranged in pairs on the conveyor drum.
  • the measuring device are suitable as sensors to be able to act on the sections of the rod-shaped articles to be tested with electromagnetic waves in the high-frequency range up to the range of X-rays depending on the application.
  • microwave sensors are preferred as the measuring device for the testing of liquid-filled capsules in filter rods.
  • capacitive high-frequency measuring devices for checking the rod-shaped articles or their sections.
  • the radiation to the sections to be examined from the near infrared range or with light, in particular laser light, in the wavelength range from 500 to 1500 nm.
  • light in particular laser light
  • diode lasers or solid lasers are suitable.
  • each measuring device for the two rows of rod-shaped articles to be arranged in such a way that sections of the rod-shaped articles to be tested are in a position Traversing the passageway of each or the electromagnetic wave measuring device in the range between 1 GHz (1 ⁇ 10 9 Hz) and 20 GHz (20 ⁇ 10 9 Hz) or in the range between 10 MHz (10 ⁇ 10 6 Hz) and 300 MHz (300 MHz) ⁇ 10 6 Hz) or in the range between 300 GHz (300 ⁇ 10 9 Hz) and 300 THz (300 ⁇ 10 12 Hz).
  • an advantageous drum arrangement is characterized in that the receiving troughs for the passage of the sections of the rod-shaped article in the region of the passage channels of the measuring devices are formed opposite to the respective passage channel.
  • the conveyor drum has an outer drum body, wherein the receiving troughs of the two rows are offset from the peripheral surface of the drum body of the conveyor drum outwardly in the radial direction, the receiving troughs for the rod-shaped article relative to the drum body of the conveyor drum with an increase in the radial direction arranged, whereby it is possible that the free ends of the portions to be tested of the rod-shaped articles are introduced during rotation of the conveyor drum in the passageway.
  • the conveyed rod-shaped articles are arranged on one side in a predetermined section of the rod-shaped articles in the shortened receiving troughs, wherein the portion of the rod-shaped articles, which are subjected to negative pressure in the receptacles provided therefor, by the rod-shaped articles during the promotion on the conveyor drum To keep negative pressure.
  • the receiving troughs of the two rows are formed in or on radially outwardly extending, in particular disk-shaped ring bodies or in or on radially outwardly extending arms.
  • a radial increase of the receiving wells relative to the drum body is achieved.
  • the distance, which is also referred to as a supernatant, between the trough bottom of the receiving wells and the drum body or the circumference of the drum body between 15 mm and 60 mm, in particular between 20 mm and 50 mm.
  • the length of the receiving troughs of the two rows for the rod-shaped article is between 15 mm and 40 mm, in particular between 15 mm and 35 mm or 30 mm, or that the width of the ring body or the width of the arms for the rod-shaped article in each case between 15 mm and 40 mm, in particular between 15 mm and 35 mm or 30 mm.
  • the length of the receiving troughs for the rod-shaped articles is dimensioned or designed such that the length of the receiving troughs is, for example, between 1/6 and 2/5 of the length of the rod-shaped articles to be conveyed.
  • the receiving troughs for the rod-shaped article in each case lateral support body for the articles to be tested in the passageways are made of a non-metallic material, in particular plastic, and the support body with rotation of the conveyor drum together with the testing sections of the rod-shaped article in the passage channels of the measuring device can be introduced and these traverse.
  • the receiving troughs lateral and projecting support body for the rod-shaped article or has for the sections to be tested, the rod-shaped article it is achieved that between the outer drum body of the conveyor drum and the support bodies in the radial direction is a free space, whereby the laterally arranged on the receiving troughs support body together with the arranged thereon sections of the rod-shaped article in the passageway of the measuring device can be introduced without the support body influences the measurement by means of the measuring device.
  • the lateral support body to the receiving wells form a kind of extension of the receiving wells, in which case the material or the plastic is selected for the support body such that the plastic has a very low dielectric constant, whereby a sufficient contrast between the support body and for example by means of Measuring device detected capsule is achieved in a filter section.
  • the object is achieved by a machine of the tobacco processing industry, in particular filter attachment machine, for the production of rod-shaped articles, in particular filter cigarettes, which is formed with a preceding drum assembly.
  • a machine of the tobacco processing industry in particular filter attachment machine, for the production of rod-shaped articles, in particular filter cigarettes, which is formed with a preceding drum assembly.
  • the object is achieved by a method for checking transversely axially conveyed rod-shaped articles of the tobacco processing industry, in particular for checking liquid-filled capsules in filter sections of filter cigarettes, using a previously described drum arrangement for Queraxialen conveying rod-shaped articles, wherein the rod-shaped article in two Rows are juxtaposed and each in each row are received transversely axially in each case in a series of receiving troughs of a conveyor drum and conveyed in transverse axial direction, wherein for each row of receiving wells in each case one, preferably stationary, measuring device with one, preferably longitudinally extended or transversely extended, open passageway is provided for sections of the rod-shaped article, wherein during the cross-axial promotion of the rod-shaped article sections of the rod-shaped articles each on their m conveying path pass through the unilaterally open passageway each a measuring device for the sections and the sections of the rod-shaped articles each row during their passage through the passageway each traversing an electromagnetic waves having measuring field of the respective measuring device, which is further developed by that
  • the method is characterized in that the rod-shaped articles in the receiving wells of each row are each arranged with laterally projecting from the receiving troughs sections, in particular filter sections, in a conveyor region and / or that the rod-shaped article of the two rows in pairs and longitudinal axial distance from each other be promoted in the receiving troughs of the conveyor drum.
  • sections of the rod-shaped article to be tested pass through the passageway of each or the measuring device respectively with electromagnetic waves in the range between 1 GHz (1 ⁇ 10 9 Hz) and 20 GHz (20 ⁇ 10 9 Hz) or in the range between 10 MHz (10 ⁇ 10 6 Hz) and 300 MHz (300 ⁇ 10 6 Hz) or in the range between 300 GHz (300 ⁇ 10 9 Hz) and 300 THz (300 ⁇ 10 12 Hz ).
  • FIG. 1 a Filteransetzmaschine is shown in fragmentary form in a front view, wherein the Filteransetzmaschine via a drum assembly T for supplying tobacco sticks from a schematically drawn cigarette rod machine P tobacco sticks of double-use length receives.
  • a cigarette rod machine is known under the name "PROTOS" of the patent applicant.
  • the tobacco rods are cut twice the length of use and spread longitudinally axially.
  • 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.
  • a sequence of tobacco rod filter plug tobacco rod groups arranged transaxially behind one another is formed on the assembly drum 21.
  • the liquid-filled capsules have.
  • the assembled article groups are transferred from the assembly drum 21 to a conveyor drum 22 and transported to a coating apparatus 10, the assembled tobacco rod filter plug tobacco rod groups.
  • a coating apparatus which is fully incorporated in the content of the present application.
  • a glued and conveyed tipping paper strip 11 is cut in the tipping apparatus 10 on a cutting drum 12 by the knives of a knife roller 13 in tufts or connecting laminae.
  • the cut compound leaflets are respectively transferred to the article groups or tobacco rod filter plug tobacco rod groups on the conveyor drum 22 or pinned.
  • the article groups are further transported to a subsequent rolling drum 26 and a rolling device 27 by which the bonding sheets are completely wrapped around the tobacco rod filter plug tobacco rod groups be wrapped around.
  • the rolling device 27 consists in one embodiment of a web wheel, a rolling hand with a rolling surface and the output side of a rolling roller, wherein the rolling surface and the rolling drum 26 form a rolling channel, are wrapped in the article groups with the connecting blades, with double-length filter cigarettes are formed.
  • the double-length filter cigarettes are subsequently transferred to a conveyor drum 28 and further below to a further conveyor drum 29 and provided for the further processing process on a filter attachment machine.
  • the double-length filter cigarettes are conveyed via a conveyor drum 30 to a cutting drum 31, on which a cutting blade 32 is arranged, which produces from the double-length filter cigarettes by a central separating cut filter cigarettes simple use length.
  • the filter cigarettes are then transferred from the cutting drum 31 to a spreading drum 33.
  • the pairs of filter cigarettes are spaced longitudinally from one another so that two (single-ply) rows are formed with filter cigarettes arranged transversely axially one behind the other.
  • the filter cigarettes of both longitudinally axially spaced rows i. pass the longitudinally axially spaced filter cigarettes to a test drum 34.
  • the filter cigarettes of both rows are each provided with a filter plug, each having at least one liquid-filled capsule.
  • a test device 44 which subjects the filter cigarettes of a test, for example, a head end test.
  • the filter cigarettes produced it is possible for the filter cigarettes produced to be subjected to a leak test and / or a head end test and / or a ventilation test on the test element 44.
  • an optical examination of the cigarettes on the test drum 34 is carried out by means of the test element 44 or a further test element.
  • the cigarettes are transferred from the test drum 34 to a subsequent conveyor drum 35, at which a schematically illustrated test device 45 with Mikrowellenresonatorvoriquesen (see. Fig. 2 ) for the two spaced-apart, single-ply rows of filter cigarettes for further quality-testing the manufactured filter cigarettes and for detecting the conditions of the liquid-filled capsules in the individual filter plugs or in the filter sections of the filter cigarettes produced on the filter attachment machine before the manufactured ones Filter cigarettes are transferred from the filter attachment machine to a subsequent (not shown here) mass flow transport device for the filter cigarettes.
  • FIG. 2 is a schematic section of the conveyor drum 35 of the filter attachment machine (see. Fig. 1 ) In cross-section with a test device 45 for the liquid-filled capsules in the filter plug of the conveyor drum 35 on the cross-axially funded filter cigarettes shown.
  • the conveyor drum 35 is part of a drum assembly of a filter attachment for Queraxialen conveyance of rod-shaped articles, in particular filter cigarettes and / or their components, wherein the drum assembly comprises a plurality of conveyor drum.
  • the conveyor drum 35 has a drum body 36, on the outside of which two spaced-apart annular bodies 37.1, 37.2 are arranged, which each have receiving cavities 38.1, 38.2 for the filter cigarettes 50.1, 50.2 produced on the filter attachment machine.
  • individual filter cigarettes 50.1, 50.2 are each part of a series of filter cigarettes, wherein the two rows of filter cigarettes 50.1, 50.2 longitudinally spaced apart from each other.
  • the filter cigarettes 50.1, 50.2 each have a tobacco rod 51.1, 51.2 and a filter plug 52.1, 52.2, wherein in the interior of the filter plug 52.1, 52.2 each a liquid-filled capsule 55 is introduced.
  • the length of the receiving wells 38.1, 38.2 is smaller than the length of the filter cigarettes 50.1, 50.2.
  • the length of the receiving wells 38.1, 38.2 is typically between 15 mm and 40 mm, in particular between 15 mm and 30 mm.
  • the symmetrically mutually arranged filter cigarettes 50.1, 50.2 are each arranged asymmetrically on the receiving wells 38.1, 38.2, wherein the tobacco rod 51.1, 51.2 is acted upon by means of a negative pressure provided with a holding vacuum and is held in the receiving wells 38.1, 38.2.
  • a narrow annular body 37.1, 37.2 is provided in each case for a series with filter cigarettes 50.1, 50.2 and a portion of the tobacco sticks 51.1, 51.2 of the filter cigarettes 50.1, 50.2 contact with the narrow receiving wells 38.1, 38.2 has, the filter cigarettes 50.1, 50.2 on one side held and arranged on the conveyor drum 35 so that a free space between the free, unsupported portions of the filter cigarettes 50.1, 50.2 with the respective filter plug 52.1, 52.2 and the outside of the drum body 36 is formed or formed.
  • This in Fig. 2 Test device 45 shown has two microwave measuring devices 60.1, 60.2, each having a passage channel 62.1, 62.2 for the free portions of the filter cigarettes 50.1, 50.2 with the unsupported, free filter plug 52.1, 52.2.
  • the passageways 62.1 62.2 are dimensioned such that the free sections with the facing filter plugs 52.1, 52.2 each pass through an electromagnetic wave measuring field, in particular in the microwave measuring field, the two microwave measuring devices 60.1, 60.2, so that the state of the liquid-filled capsules 55 in the filter plug 52.1, 52.2 individually and simultaneously checked or monitored.
  • the measurement results of the microwave measurement devices 60.1, 60.2 are each sent to an evaluation device 56, e.g. Machine control, transmitted, so that by means of the evaluation device 56, the filter cigarettes with a defective capsule 55 are removed after their detection from the further production process at a corresponding point, for example, at the filter attachment machine.
  • an evaluation device 56 e.g. Machine control
  • the U-shaped microwave measuring devices 60.1, 60.2 are arranged between the two annular bodies 37.1, 37.2 of the conveyor drum 35, so that the passage channels 62.1, 62.2 are directed outwards, whereby upon rotation of the conveyor drum 35, the sections of the filter cigarettes 50.1, 50.2 with each one Capsule 55 having filter plug 52.1, 52.2 are conveyed through the passageways 62.1, 62.2.
  • Fig. 3 shows a schematic perspective view of parts of an embodiment of an arrangement with a microwave measuring device 60, which is arranged on a conveyor drum of a filter attachment machine. For reasons of clarity, the marking of the conveyor drum was omitted.
  • the arrangement comprises a microwave measuring device 60 with a housing 72, which comprises a reflection resonator 74 with a microwave coupling 80.
  • An aperture 84 is indicated by dashed lines and separates the Mikrowelleneinkopplungshohlraum 80 from the reflection resonator 74.
  • a passageway 62 which is fork-shaped. This comprises a first wall 64 and a second wall 66 and is laterally closed by means of an end wall 68.
  • the passageway 62 in cross-section "U" -shaped. This prevents the microwave field in the interior of the resonator from escaping to a greater extent. Contributing to this is that the first wall 64 and the second wall 66 project significantly beyond the resonator cavity.
  • passageway 62 extends a conveying path 100 of rod-shaped articles, in this case filter cigarettes 50, the one Tobacco stick 51, which is only partially shown, as well as filter plug 52 with capsules 55 include.
  • the resonator cavity itself is covered by means of protective shields 326, 327, which consist of a material permeable to microwaves, for example PEEK (polyether ether ketone). This prevents dirt from entering the microwave resonator.
  • protective shields 326, 327 consist of a material permeable to microwaves, for example PEEK (polyether ether ketone). This prevents dirt from entering the microwave resonator.
  • the reflection resonator 74 is divided into three resonator cavity sections 325, 325 ', 325 ".
  • Fig. 4a and 4b These are schematic sectional views through an embodiment of a microwave measuring device 60. These are in each case sectional views through the microwave measuring device 60, in a sectional plane which extends longitudinally through the filter plug 52 with the capsule 55, the center of their conveying path 100 in the passageway 62 is arranged in Fig. 4a ), and in a section which extends transversely to the longitudinal extent of the filter plug 52, in Fig. 4b ).
  • the microwave measuring device 60 comprises several parts.
  • the microwaves are coupled in a microwave launch comprising a microwave launch cavity 330 and an antenna 336 that operates as both a launch antenna and a launch antenna.
  • the microwave injection cavity 330 is defined by a wall having a circular or oval aperture 84 through which microwaves penetrate into the resonator cavity 124.
  • the aperture can also have other shapes, or multiple apertures are possible, which can be selected, for example, according to the fed-in mode of the microwave field.
  • the resonator cavity 124 is divided by the passageway 62 into two separate resonator cavity sections 325, 325 '.
  • the continuation of the resonator cavity 124 in the passageway 62 itself may be considered as another resonator cavity portion 325.
  • the shields 326, 327 separating these resonator cavity portions 325, 325 'of the resonator cavity 124 from the passageway 62 are microwave permeable, so that a common resonator cavity 124 with two or three parts, the resonator cavity sections 325, 325 ', 325 ".
  • the middle resonator cavity section 325 is the one that lies in the passageway 62, while the other two are protected against contamination by microwave-permeable shields 326, 327, so that a consistently high quality of the reflection resonator 121 is ensured.
  • the resonator cavity 124 is closed by a reflection surface 332, which opposes the aperture 84. Microwaves that pass through the aperture 84 into the resonator cavity 124 are reflected at the reflective surface 332 and pass back through the aperture 84 to the antenna 336. In doing so, they pass through the passageway 62 with filter plugs 52 and capsules 55 optionally positioned therein.
  • the extension of the resonator cavity 124 in the cross-section in the longitudinal direction of the rod-shaped article is smaller than in the transverse direction thereto. This achieves a good resolution in the longitudinal extent of the rod-shaped article.
  • This can also be seen in the form and arrangement of the protective covers 326, 327, which cover only the portion around the desired position of capsules 55 in the filter plug 52 of the filter cigarettes 50. It is also possible to reverse the length and width ratios, so that the queraxial promoted rod-shaped article hits the broad side of the cross-section of the resonator cavity 124.
  • a good spatial resolution can be achieved transversely to the longitudinal extent of the rod-shaped article.
  • a plurality of similar microwave measuring devices 60 of the former type may be staggered one behind the other to scan the entire length of, for example, a filter plug 52 of a filter cigarette 50.
  • the microwave measuring field in the resonator cavity 124 is effectively prevented from leaking to the outside by the laterally projecting walls 64, 66 and the end wall 68.
  • the launching antenna 336 in the microwave injection cavity 330 is in FIG Fig. 4a) and 4b ) arranged laterally in the long side.
  • the opening of the aperture 84 is oval.
  • FIG. 5 In the subfigures a) and b) two different views of a corresponding waveguide resonator 134 are shown.
  • Fig. 5a shows a section across the resonator 134 and the fork 137, which comprises the conveying path of the cross-axially conveyed article, not shown.
  • the non-conductive window 142 can be seen that separate the passageway 62 of the sub-spaces 136, 136 'of the waveguide resonator 134 and protect against ingress of dust.
  • Fig. 5b shows a further perspective view of the waveguide resonator 134 with fork 137, wherein is seen in the passageway 62. It is recognizable, as well as in the cut of the Fig. 5a ), that the Duchtrittskanal 62 describes an arc section, corresponding to the conveying path on a drum trunk or conveyor drum.
  • Fig. 6 shows a schematic cross-sectional view of a microwave measuring device 60 with the helical microwave resonator 250 in a sectional plane extending in the longitudinal direction through a cross-axially subsidized cigarette with tobacco rod 51 and projecting portion, a filter plug 52 with a capsule 55.
  • This is conveyed transaxially through a passage 62 of the housing 260 of the measuring device.
  • it is conveyed through the measuring range of the helical microwave resonator 250, which has an annular-cylindrical resonator space 252, in the center of which a central column 254 is arranged, similar to an open coaxial resonator.
  • the helical microwave resonator 250 has a helical coil 256, which leads to a large increase in the quality factor of the microwave resonator.
  • the resonator 252 is covered with a protective cap 258 of a microwave-permeable material, preferably a plastic, so that the resonator 252 does not pollute during operation.
  • the filter plug 52 is in the closest approach to the helical microwave resonator 250.
  • the illustrated configuration may be operated at a microwave frequency of 5.58 GHz.
  • the microwave measuring device 60 comprises a resonator housing 432, which encloses a microwave resonator 434.
  • the microwave resonator 434 is a cavity which is enclosed by electrically conductive walls of the resonator housing 432 and in which a microwave measuring field can form.
  • Fig. 7a) and 7c also show parts of a coordinate system with an x-axis, a y-axis and a z-axis.
  • the x-axis extends in the direction of the longitudinal extension of the rod-shaped articles 50 or cigarettes 50, the z-direction extends in the conveying direction of the rod-shaped articles 50, while the y-direction is perpendicular thereto.
  • Fig. 7a therefore, a section is shown in an xy plane of this coordinate system.
  • the resonator housing 432 has centrally a lateral opening, which acts as a passageway 62 for the cigarettes 50.
  • This passageway 62 extends in the z-direction, which in Fig. 7a ) into the drawing plane.
  • the passageway 62 is separated from the interior of the microwave resonator 434 by a nonconductive window 442 enclosing the passageway 62 on three sides, so that no dust and contamination from the passageway 62 can penetrate from the cigarettes 50 into the microwave resonator 434, for example.
  • Fig. 7b shows the course of a typical microwave resonance field as a function of the x-direction.
  • the electric field 450 whose electric field E z is oriented in the z-direction, has in the illustrated exemplary embodiment in the x-direction two antinodes and a central wave node.
  • the two antennas 436, 436 ' are arranged in the x-direction at an x-position of one of the two antinodes, so that an ideal coupling and uncoupling of the microwave measuring field by the two antennas 436, 436' takes place.
  • other Einkopplungsorte and, for example, a magnetic coupling are possible.
  • the other shaft belly is located in the x-direction at a desired position of the capsule 55 in the filter 52 of the cigarettes 50. Capsules, which are in the region of the shaft belly Therefore, they generate a large signal with respect to the change of the resonant microwave measuring field, so that their filling and quality can be measured very accurately.
  • this position of the capsule 55 could also be set to a position at which the microwave measuring field has a wave node. In this case, there is a change in the microwave measuring field only if the capsule 55 does not occupy this desired position and thus feels an electric field which is not equal to zero, that is does not have the vanishing field strength of the wave node. In this case, a difference to a signal change is considered, which is caused by filter material anyway.
  • Fig. 7c shows a cross section through the microwave measuring device 60 in a yz plane. It can be seen that the microwave resonator 434 is tapered in the central area. The intersection of the microwave resonator 434 through the passageway 62 is clearly visible in this view. It can also be seen that the passageway 62 extends in a curved manner in accordance with the curvature of the conveying path of the cigarettes 50 on a trough drum.
  • an antenna 436 is passed through a non-conductive portion of the resonator 440 and in contact with an electronics 438, which is recessed into the resonator housing.
  • This electronics 438 may be, for example, a transmission electronics, which generates the microwave measuring field and coupled by the antenna 436 in the microwave resonator 434.
  • the antenna 436 ' is also provided with electronics 438' outside the microwave resonator 434 connected is. This may be a measuring and evaluation electronics 438 'which registers and evaluates changes in the measuring field.
  • Fig. 7d shows how the electric field 452 (E z ) extends in the y-direction. In this direction is the zero mode, which has only a wave belly and nodes on the outer walls. In this case as well, the trajectory of the capsules 55 thus runs with regard to their desired position through a wave bulge of the E field.
  • the microwave measuring field with a higher mode could also be selected in the y-direction so that the trajectory of the capsule 55 could run through a vibration node at its desired position in order to achieve a spatial resolution for deviations from the desired position.
  • FIG. 8 In the parts a) to c) various details and views of a capacitive RF measuring device 60 according to the invention are shown.
  • Fig. 8a shows a cross-section which runs vertically through the conveying trajectory 519 of a cross-axially promoted cigarette 50 with filter 52 and capsule 55 in the center of the filter 52. At this point, the cigarette 50 is conveyed with its projecting portion through a passageway 62 of the capacitive RF measuring device 60.
  • wall surface shown above consists of an electrically conductive electrode surface 538, which is isolated by means of an insulation 537 from the likewise metallic base body 536 of the RF measuring device 60. Through the insulation 537 extends a feed line 539, via which the electrode surface 538 is acted upon by a harmonic RF signal.
  • the in Fig. 8a ) underneath the cigarette 50 shown part of the capacitive RF measuring device 60 comprises as bottom of the passageway 62 and the opposite side of the electrically conductive base body 536 which is held at a ground potential, and two capacitor electrodes 542, 542 ', by means of an insulation 543 , 543 'are electrically insulated from the main body 536 and are connected to an electrical circuit via supply lines 544, 544'.
  • Fig. 8b the same capacitive RF measuring device 60 is shown in section in a section which includes the delivery trajectory 519 of the cigarette 60 and the filter 52 with the capsule 55. Since this is conveyed in a trough on a trough drum in the exemplary embodiment, the passage channel 62 in this area has a ring-segment-shaped configuration or describes a curve whose radius of curvature corresponds to the radius of the trough drum.
  • Fig. 8c shows a plan view of the lower surface of the passageway 62, that is, the grounded side of the capacitive RF measuring device 60.
  • Much of the area of this electrode consists of the surface of the grounded body 536 held at ground potential.
  • Centrally along the trajectory 519 of a capsule 55 are two capacitor electrodes 542, 542 'which are held to virtual ground.

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Description

Die Erfindung betrifft eine Trommelanordnung einer Maschine der Tabak verarbeitenden Industrie, insbesondere Trommelanordnung einer Filteransetzmaschine, zum queraxialen Fördern von stabförmigen Artikeln der Tabak verarbeitenden Industrie, insbesondere Filterzigaretten, mit einer rotierbaren Fördertrommel für die stabförmigen Artikel.
Ferner betrifft die Erfindung eine Maschine der Tabak verarbeitenden Industrie, insbesondere Filteransetzmaschine, zur Herstellung von stabförmigen Artikeln, insbesondere Filterzigaretten.
Außerdem betrifft die Erfindung ein Verfahren zum Überprüfen von queraxial geförderten stabförmigen Artikeln der Tabak verarbeitenden Industrie, insbesondere zur Überprüfung von flüssigkeitsgefüllten Kapseln in Filterabschnitten von Filterzigaretten.
The invention relates to a drum assembly of a machine of the tobacco processing industry, in particular drum assembly of a filter attachment machine, for transversely conveying of rod-shaped articles of the tobacco processing industry, in particular filter cigarettes, with a rotatable conveyor drum for the rod-shaped article.
Furthermore, the invention relates to a machine of the tobacco processing industry, in particular filter attachment machine, for the production of rod-shaped articles, in particular filter cigarettes.
Moreover, the invention relates to a method for checking transversely promoted rod-shaped articles of the tobacco-processing industry, in particular for checking liquid-filled capsules in filter sections of filter cigarettes.

Unter der Bezeichnung "MAX" ist eine Filteransetzmaschine der HAUNI Maschinenbau AG bekannt.Under the name "MAX" a filter attachment HAUNI Maschinenbau AG is known.

Als Filteransetzmaschine wird eine Vorrichtung bzw. Maschine zur Herstellung von Filterzigaretten verstanden mit Mitteln zur Aufnahme von Tabakstöcken doppelter Länge mit Mitteln zum Schneiden dieser doppeltlangen Tabakstöcke in Tabakstöcke einfacher Länge, mit Mitteln zum Einbringen von Filterstopfen doppelter Länge zwischen die Tabakstöcke einfacher Länge, mit Mitteln zum Verbinden des doppeltlangen Filterstopfens mit den beiden Tabakstöcken einfacher Länge durch Umhüllen mit einem Belagpapierblättchen, das mittels einer Schneideinrichtung von einem zugeführten Belagpapierstreifen abgetrennt wird, mit Mitteln zum nachfolgenden Ausführen eines Trennschnitts durch den doppeltlangen Filterstopfen, so dass Filterzigaretten normaler Gebrauchslänge entstehen.As filter attachment machine is a device or machine for the production of filter cigarettes understood with means for receiving tobacco rods of double length with means for cutting these double-length tobacco sticks in tobacco sticks simple length, with means for introducing filter plug double length between the tobacco sticks simple length, with means for Connecting the double-length filter plug with the two tobacco rods of simple length by wrapping with a tipping paper sheet which is severed by means of a cutter from a supplied tipping paper strip, with means for subsequently making a cut through the double-length filter plug so that filter cigarettes of normal working length are formed.

Nach der Herstellung der Filterzigaretten werden eine Dichtigkeitsprüfung und/oder mindestens eine Kopfendenprüfung und/oder eine Ventilationsgrad-Prüfung und/oder mindestens eine optische Prüfung der Zigaretten in der Filteransetzmaschine ausgeführt. Bei der Dichtigkeitsprüfung wird auf einer Prüftrommel jede einzelne Zigarette mit Prüfluft beaufschlagt.After the production of the filter cigarettes, a leak test and / or at least one head end test and / or a ventilation degree test and / or at least one optical test of the cigarettes are carried out in the filter attachment machine. In the leak test, each individual cigarette is exposed to test air on a test drum.

Darüber hinaus werden an einer Filteransetzmaschine die Produkte bzw. hergestellten stabförmigen Artikel bzw. Filterzigaretten durch optische Prüfeinrichtungen untersucht. Bei einer optischen Prüfung werden üblicherweise Qualitätsmerkmale an den Produkten der Tabak verarbeitenden Industrie detektiert wie Löcher, Dimensionen, Objektidentifizierung, Stempel, Leimauftrag, Flecken, das Vorhandensein von Filterelementen, Beschädigung und dergleichen. Unter Produkten der Tabak verarbeitenden Industrie werden im Rahmen der vorliegenden Patentanmeldung insbesondere stabförmige Artikel bzw. Objekte wie Zigaretten, Filterstäbe, Multisegmentfilterstäbe und dergleichen verstanden.
Beispielsweise ist aus DE-A-10 2004 040 912 eine Einrichtung zur optischen Kontrolle von Produkten der Tabak verarbeitenden Industrie bekannt, die eine Bilderfassungsvorrichtung umfasst, wobei Gradientenindexlinsen verwendet werden, um den Abstand zwischen der Bilderfassungsvorrichtung und den zu kontrollierenden Produkten zu verringern.
Außerdem ist in EP-A-0 836 809 ein Verfahren zur Kontrolle der gefüllten Enden von Tabakartikeln beschrieben. Hierbei werden Zigaretten auf einer Fördertrommel gefördert, wobei die Kopfenden der Zigaretten aus dem Förderelement bzw. der Fördertrommel um eine Länge hervorstehen, die sich zwischen einem maximalen und einem minimalen Wert ändert. Während ihrer Förderung auf dem Förderelement durchqueren die freien Enden der Zigaretten eine Kontrollvorrichtung mit einer optischen Baueinheit und einer Empfangseinheit. Mittels der von Fotosensoren der Empfangsbaueinheit gemessenen Intensität des von der optischen Baueinheit ausgesendeten Lichts wird die Endfüllung der Zigaretten kontrolliert
In DE 10 2013 201 511 B3 sind eine Anordnung und ein Verfahren zur Überprüfung von stabförmigen Produkten der Tabak verarbeitenden Industrie beschrieben. Hierbei weist die Anordnung eine Muldenfördervorrichtung mit Mulden zur Aufnahme und queraxialen Förderung von stabförmigen Artikeln und eine Mikrowellenmessvorrichtung mit einem Mikrowellenresonator auf. Dieses Dokument offenbart eine Anordnung mit einer einzigen Reihe von stabförmigen Artikeln.
In addition, the products or rod-shaped articles or filter cigarettes are examined by optical testing equipment on a filter attachment machine. In an optical inspection, quality features are typically detected on the products of the tobacco processing industry such as holes, dimensions, object identification, punches, glue application, stains, the presence of filter elements, damage, and the like. In the context of the present patent application, products of the tobacco-processing industry are in particular rod-shaped Article or objects such as cigarettes, filter rods, multi-segment filter rods and the like understood.
For example, it is off DE-A-10 2004 040 912 a device for optically controlling tobacco processing industry products comprising an image capture device, wherein gradient index lenses are used to reduce the distance between the image capture device and the products to be controlled.
It is also in EP-A-0 836 809 a method of controlling the filled ends of tobacco articles is described. Here, cigarettes are conveyed on a conveyor drum, wherein the head ends of the cigarettes project from the conveyor element or the conveyor drum by a length which varies between a maximum and a minimum value. During their conveyance on the conveyor element, the free ends of the cigarettes pass through a control device with an optical unit and a receiving unit. By means of the measured by photo sensors of the receiving unit intensity of the emitted light from the optical assembly, the final filling of the cigarettes is controlled
In DE 10 2013 201 511 B3 an arrangement and a method for checking rod-shaped products of the tobacco processing industry are described. In this case, the arrangement comprises a tray conveyor with troughs for receiving and transverse axial promotion of rod-shaped articles and a microwave measuring device with a microwave resonator. This document discloses an arrangement with a single row of rod-shaped articles.

Ferner offenbart DE 10 2012 211 648 A1 eine Messanordnung zum Messen wenigstens einer Eigenschaft eines stabförmigen Artikels der Tabak verarbeitenden Industrie. Hierbei weist die Messanordnung eine Sensoreinheit auf, in der ein Sender und ein von dem Sender beabstandeter und mit dem Sender temporär in berührungsloser Wirkverbindung stehender Empfänger zugeordnet sind.Further disclosed DE 10 2012 211 648 A1 a measuring arrangement for measuring at least one property of a rod-shaped article the tobacco processing industry. In this case, the measuring arrangement has a sensor unit in which a transmitter and a receiver which is at a distance from the transmitter and is temporarily in contactless contact with the transmitter are assigned.

Außerdem offenbart EP 2 848 133 A1 eine weitere Anordnung und ein weiteres Verfahren zur Überprüfung von stabförmigen Artikeln der Tabak verarbeitenden Industrie.Also revealed EP 2 848 133 A1 another arrangement and another method for checking rod-shaped articles of the tobacco processing industry.

Außerdem ist in EP 2 796 061 A1 eine Vorrichtung und ein Verfahren zur Messung von Kapseln in Zigarettenfiltern beschrieben.It is also in EP 2 796 061 A1 describes an apparatus and a method for measuring capsules in cigarette filters.

Ausgehend von diesem Stand der Technik liegt der vorliegenden Erfindung die Aufgabe zugrunde, die Qualität bei der Herstellung von stabförmigen Artikeln der Tabak verarbeitenden Industrie an einer Maschine, z.B. bei der Herstellung von Filterzigaretten an einer Filteransetzmaschine, sicherzustellen.Starting from this prior art, the object of the present invention is to improve the quality in the production of rod-shaped articles of the tobacco-processing industry on a machine, e.g. in the manufacture of filter cigarettes on a filter attachment machine.

Gelöst wird diese Aufgabe durch eine Trommelanordnung einer Maschine der Tabak verarbeitenden Industrie, insbesondere Trommelanordnung einer Filteransetzmaschine, zum queraxialen Fördern von stabförmigen Artikeln der Tabak verarbeitenden Industrie, insbesondere Filterzigaretten, mit einer rotierbaren Fördertrommel für die stabförmigen Artikel, wobei die Fördertrommel in Umfangsrichtung zwei nebeneinander angeordnete Reihen von hintereinander angeordneten Aufnahmemulden für jeweils eine Reihe von stabförmigen Artikeln aufweist, wobei die Fördertrommel eingerichtet ist, stabförmige Artikel, die in zwei Reihen nebeneinander und jeweils queraxial hintereinander angeordnet in Aufnahmemulden der Fördertrommel aufgenommen sind, bei Rotation der Fördertrommel in queraxialer Richtung zu fördern, wobei für jede Reihe von Aufnahmemulden jeweils eine, vorzugsweise stationäre, Messvorrichtung mit einem einseitig offenen Durchtrittskanal für Abschnitte der stabförmigen Artikel vorgesehen ist und im Durchtrittskanal jeder Messvorrichtung die, vorzugsweise von den jeweiligen Aufnahmemulden seitlich überstehenden, im Durchtrittskanal befindlichen Abschnitte der stabförmigen Artikel jeweils bei Durchquerung der einseitig offenen Durchtrittskanäle der Messvorrichtungen jeweils mit elektromagnetischen Wellen eines Messfeldes der Messvorrichtung beaufschlagbar sind oder beaufschlagt werden, die dadurch weitergebildet wird, dass jede Messvorrichtung für die beiden Reihen von stabförmigen Artikeln derart eingerichtet ist, um zu prüfende Abschnitte der stabförmigen Artikel bei einer Durchquerung des Durchtrittskanals jeder Messvorrichtung jeweils mit elektromagnetischen Wellen im Bereich zwischen 300 MHz (300 × 106 Hz) und 30 EHz (30 × 1018 Hz) zu beaufschlagen, wobei die Messvorrichtungen für die Abschnitte der stabförmigen Artikel der beiden Reihen zwischen den beiden Reihen der Aufnahmemulden für die stabförmigen Artikel angeordnet sind, und wobei die Fördertrommel einen äußeren Trommelkörper auf, wobei die Aufnahmemulden der beiden Reihen gegenüber der Umfangsfläche des Trommelkörpers der Fördertrommel in radialer Richtung nach außen versetzt ausgebildet sind.This object is achieved by a drum assembly of a machine of the tobacco-processing industry, in particular drum arrangement of a filter attachment machine for Queraxialen conveyance of rod-shaped articles of the tobacco industry, especially filter cigarettes, with a rotatable conveyor drum for the rod-shaped article, wherein the conveyor drum in the circumferential direction two juxtaposed Having rows of successively arranged receiving troughs for each of a number of rod-shaped articles, wherein the conveyor drum is arranged to promote rod-shaped articles, which are accommodated in two rows next to each other and each transverse axial succession in receiving troughs of the conveyor drum, upon rotation of the conveyor drum in the transverse axial direction, wherein for each row of receiving wells in each case one, preferably stationary, measuring device is provided with a unilaterally open passageway for portions of the rod-shaped article and in the passage of each measuring device, preferably laterally projecting from the respective receiving troughs, located in the passageway sections of the rod-shaped article each traversing the unilaterally open passageways of the measuring devices each with electromagnetic waves of a measuring field Measuring device are acted upon or acted upon, which is further developed in that each measuring device for the two rows of rod-shaped articles is arranged to test sections of the rod-shaped article in a traversal of the passage of each measuring device in each case with electromagnetic waves in the range between 300 MHz ( 300 × 10 6 Hz) and 30 EHz (30 × 10 18 Hz), the measuring devices for the sections of the rod-shaped articles of the two rows between the two Rows of receiving troughs are arranged for the rod-shaped article, and wherein the conveyor drum on an outer drum body, wherein the receiving troughs of the two rows are formed offset from the peripheral surface of the drum body of the conveyor drum in the radial direction outwards.

Die Erfindung beruht auf dem Gedanken, dass eine Maschine der Tabak verarbeitenden Industrie, insbesondere Filteransetzmaschine, eine Trommelanordnung mit mehreren Fördertrommeln aufweist, wobei an einer Fördertrommel der Trommelanordnung eine Messvorrichtung zur Überprüfung von Abschnitten der stabförmigen Artikel bzw. von Filterzigaretten vorgesehen ist. Hierbei werden mittels der Messvorrichtung beispielsweise flüssigkeitsgefüllte Kapseln in Filterstopfen der queraxial geförderten Filterzigaretten an einer Filteransetzmaschine nach deren Herstellung an der Filteransetzmaschine überprüft.The invention is based on the idea that a machine of the tobacco processing industry, in particular Filteransetzmaschine, a drum assembly having a plurality of conveyor drums, wherein on a conveyor drum of the drum assembly, a measuring device for checking portions of the rod-shaped articles or filter cigarettes is provided. In this case, by means of the measuring device, for example, liquid-filled capsules in filter plugs of the cross-axially funded filter cigarettes checked on a Filteransetzmaschine after their preparation at the Filteransetzmaschine.

Hierbei ist in einer Ausgestaltung für eine einreihige Bahn von queraxial hintereinander angeordneten stabförmigen Artikeln eine (einzige) Messvorrichtung mit einem Durchtrittskanal für die Abschnitte der stabförmigen Artikel vorgesehen.In one embodiment, for a single-row web of rod-shaped articles arranged transaxially one behind the other, a (single) measuring device with a passageway for the sections is provided provided the rod-shaped article.

Gemäß einer weiteren Ausgestaltung ist bei zwei Bahnen von jeweils queraxial hintereinander angeordneten stabförmigen Artikeln jeweils eine Messvorrichtung mit jeweils einem Durchtrittskanal für die Abschnitte der stabförmigen Artikel einer Reihe vorgesehen.According to a further embodiment, in each case one measuring device is provided in each case with two paths of rod-shaped articles arranged transaxially one behind the other, each having a passage channel for the sections of the rod-shaped articles of a row.

Hierbei ist insbesondere vorgesehen, dass beispielsweise nach einer optischen Prüfung der hergestellten Filterzigaretten und nach einer Prüfung des Ventilationsgrads der Filterzigaretten und vor der Abgabe der einfach langen, gebrauchsfertigen Filterzigaretten an eine nachfolgende Massenstromtransporteinrichtung mit mehrlagigen Filterzigaretten, die Filter bzw. Filterstopfen der Filterzigaretten überprüft werden. Insbesondere werden hierbei Filter oder Filterabschnitte, die mit flüssigkeitsgefüllten Kapseln versehen sind, überprüft.In this case, it is provided in particular that, for example, after an optical examination of the filter cigarettes produced and after checking the degree of ventilation of the filter cigarettes and before the delivery of simply long, ready-to-use filter cigarettes to a subsequent mass flow transport device with multi-layer filter cigarettes, the filter or filter plug of the filter cigarettes are checked. In particular, this filter or filter sections, which are provided with liquid-filled capsules, checked.

Dazu ist beispielsweise vorgesehen, dass eine Prüfvorrichtung in Form einer Mikrowellenmessvorrichtung mit einem Mikrowellenresonator für die zu prüfenden Abschnitte bzw. Filter der Filterzigaretten vorgesehen ist, wobei hierbei die stabförmigen Artikel mit den jeweils zu prüfenden Abschnitten durch einen einseitig offenen seitlichen Durchtrittskanal bei Rotation der Fördertrommel geführt werden und den Durchtrittskanal der Messvorrichtung durchqueren, so dass die in den Durchtrittskanal eingebrachten Abschnitte, insbesondere Filterabschnitte der Filterzigaretten, auf ihrem Förderweg durch den Durchtrittskanal, z.B. ein Mikrowellenmessfeld, in wenigstens einem Mikrowellenresonator der Messvorrichtung durchqueren.For this purpose, it is provided, for example, that a test device in the form of a microwave measuring device with a microwave resonator for the sections to be tested or filter of the filter cigarettes is provided, in which case the rod-shaped article with the respective sections to be tested by a unilaterally open lateral passage channel during rotation of the conveyor drum be and traverse the passageway of the measuring device, so that the introduced into the passageway sections, in particular filter sections of the filter cigarettes, on its conveying path through the passageway, eg a microwave measuring field to traverse in at least one microwave resonator of the measuring device.

Hierbei wird erreicht, dass die stabförmigen Artikel bzw. Filterzigaretten queraxial seitlich in die Mikrowellenmessvorrichtung bzw. einen Mikrowellenresonator eintauchen und dort das darin angeregte Messfeld bzw. resonante Mikrowellenmessfeld durchlaufen. Unter Verwendung einer Mikrowellenmessvorrichtung treten die zu prüfenden Abschnitte bzw. Filterabschnitte vollständig in ein Mikrowellenmessfeld ein, das im Resonator eine hohe Feldstärke aufweist.It is thereby achieved that the rod-shaped articles or filter cigarettes transversely laterally into the microwave measuring device or Immerse a microwave resonator and there pass through the measuring field or resonant microwave measuring field excited therein. Using a microwave measuring device, the sections or filter sections to be tested completely enter a microwave measuring field which has a high field strength in the resonator.

Mit dem längserstreckten oder quererstreckten, einseitig offenen seitlichen Durchtrittskanal sind die Messvorrichtungen außerdem für diesen queraxial geförderten seitlichen Durchtritt speziell ausgestaltet, um den entsprechenden Durchtritt durch den Mikrowellenresonator zu ermöglichen. Hierbei wird bei der Herstellung von Filterzigaretten an einer Filteransetzmaschine vor der Abgabe des einlagigen Massenstroms an Filterzigaretten an eine Massenstromtransporteinrichtung mit mehreren Lagen aus Filterzigaretten die Qualität der Filterzigaretten überwacht, wobei in Abhängigkeit der Messergebnisse Filterzigaretten mit defekten Kapseln in Filterabschnitten aus dem weiteren Produktionsprozess ausgeschleust werden.With the longitudinally extended or transversely extended, unilaterally open lateral passageway, the measuring devices are also specially designed for this cross-axially promoted lateral passage in order to allow the corresponding passage through the microwave resonator. Here, the quality of the filter cigarettes is monitored in the production of filter cigarettes on a Filteransetzmaschine before delivering the single-layer mass flow of filter cigarettes to a mass flow conveyor with multiple layers of filter cigarettes, being discharged depending on the measurement results filter cigarettes with defective capsules in filter sections from the further production process.

Gemäß der Erfindung werden hierbei an einer doppeltbahnigen Filteransetzmaschine die Abschnitte von Filterzigaretten, von zwei nebeneinander, einlagigen Einzelströmen mit queraxial hintereinander jeweils in einer Reihe angeordneten Filterzigaretten erfasst. Dadurch, dass bei der doppeltbahnigen Filterzigarette jeweils eine Messvorrichtung für eine Bahn von Filterzigaretten geprüft werden, wird die Güte des Herstellungsprozesses der Filterzigaretten an der Filteransetzmaschine signifikant erhöht, da nach Herstellung der fertigen Filterzigaretten geprüft wird, ob Kapseln in den Zigarettenfiltern intakt sind.According to the invention, the sections of filter cigarettes, of two side-by-side, single-layer individual streams with filter cigarettes arranged transaxially one behind the other in each case are detected on a double-web filter tying machine. The fact that in the double-lane filter cigarette each a measuring device for a web of filter cigarettes are tested, the quality of the manufacturing process of the filter cigarettes is significantly increased at the filter tufting machine, since it is checked after production of the finished filter cigarettes, whether capsules are intact in the cigarette filters.

Im Rahmen der Erfindung ist dabei vorgesehen, dass vor der Abgabe der Filterzigaretten von der Filteransetzmaschine an einen nachfolgenden Massenstromförderer Abschnitte der stabförmigen Artikel, d.h. der Filterzigaretten, mit elektromagnetischen Strahlen des jeweiligen Messfeldes beaufschlagt werden, wobei hierfür die zu prüfenden Abschnitte der Filterzigaretten mit elektromagnetischen Wellen zur Prüfung der Abschnitte im jeweiligen Durchtrittskanal beaufschlagt werden.In the context of the invention, it is provided that before the delivery of the filter cigarettes from the filter attachment machine to a Subsequent mass flow conveyor sections of the rod-shaped articles, ie the filter cigarettes, are acted upon by electromagnetic radiation of the respective measuring field, for which purpose the portions of the filter cigarettes to be tested are subjected to electromagnetic waves for testing the sections in the respective passage.

Die Messvorrichtung für jede Reihe von Filterzigaretten oder stabförmigen Artikeln ist erfindungsgemäß jeweils mit einem längserstreckten, einseitig offenen und insbesondere U-förmigen Durchtrittskanal für die zu prüfenden Abschnitte der stabförmigen Artikel ausgebildet, wobei zur Durchführung der Prüfung die Filterzigaretten einseitig auf einem mit Saugluft beaufschlagten Halter mit einer Aufnahmemulde für die Filterzigaretten gehalten werden, so dass die zu prüfenden Abschnitte in die gabelförmig ausgebildete Messvorrichtung mit dem offenen Durchtrittskanal jeweils eingebracht werden. Insbesondere werden dabei an der doppeltbahnigen Filteransetzmaschine gleichzeitig die paarweise geförderten Filterzigaretten beider Reihen überprüft. Insbesondere sind dabei die paarweise angeordneten Filterzigaretten für die Prüfung längsaxial voneinander beabstandet.The measuring device for each row of filter cigarettes or rod-shaped articles according to the invention is formed in each case with an elongated, open on one side and in particular U-shaped passage for the sections of the rod-shaped article to be tested, wherein for performing the test, the filter cigarettes on one side with a loaded with suction with holder a receiving trough for the filter cigarettes are kept so that the portions to be tested are introduced into the fork-shaped measuring device with the open passageway respectively. In particular, the pairs of filter cigarettes of both rows are checked at the same time on the double-track filter tying machine. In particular, the paired filter cigarettes for the examination are longitudinally axially spaced from each other.

Im Rahmen der Erfindung weist die Trommelanordnung der Maschine der Tabak verarbeitenden Industrie zur Herstellung von stabförmigen Artikeln, insbesondere Filterzigaretten, eine Prüfvorrichtung mit jeweils einer Messvorrichtung für die doppeltbahnig geführten und hergestellten Filterzigaretten auf, so dass jeweils eine Messvorrichtung für jeweils eine Reihe mit queraxial hintereinander angeordneten Filterzigaretten vorgesehen ist.In the context of the invention, the drum assembly of the machine of the tobacco processing industry for the production of rod-shaped articles, in particular filter cigarettes, a test device, each with a measuring device for the double-lane guided and manufactured filter cigarettes, so that in each case a measuring device arranged in each case one row with queraxial successively Filter cigarettes is provided.

Dadurch, dass die Messvorrichtungen zwischen den zu prüfenden Abschnitten der stabförmigen Artikel der beiden Reihen und somit zwischen den Aufnahmemulden für die stabförmigen Artikel angeordnet sind, wird erreicht, dass die zu prüfenden Abschnitte der stabförmigen Artikel der beiden Reihen einander zugewandt sind. Insbesondere sind die zu prüfenden Filterabschnitte der Filterzigaretten einander paarweise auf der Fördertrommel angeordnet.Characterized in that the measuring devices between the sections to be tested of the rod-shaped article of the two rows and thus are arranged between the receiving troughs for the rod-shaped article, it is achieved that the sections to be tested of the rod-shaped article of the two rows face each other. In particular, the filter sections of the filter cigarettes to be tested are arranged in pairs on the conveyor drum.

Hierbei ist es im Rahmen der Erfindung vorgesehen, dass die Messvorrichtung als Sensoren geeignet sind, um je nach Anwendungsbereich die zu prüfenden Abschnitte der stabförmigen Artikel mit elektromagnetischen Wellen im Hochfrequenzbereich bis in den Bereich von Röntgenstrahlen beaufschlagen zu können.In this case, it is provided within the scope of the invention that the measuring device are suitable as sensors to be able to act on the sections of the rod-shaped articles to be tested with electromagnetic waves in the high-frequency range up to the range of X-rays depending on the application.

Insbesondere werden für die Prüfung von flüssigkeitsbefüllten Kapseln in Filterstäben Mikrowellensensoren als Messvorrichtung bevorzugt. Allerdings ist es im Rahmen der Erfindung auch möglich, für die Überprüfung der stabförmigen Artikel bzw. deren Abschnitte beispielsweise kapazitive Hochfrequenzmessvorrichtungen einzusetzen.In particular, microwave sensors are preferred as the measuring device for the testing of liquid-filled capsules in filter rods. However, it is also possible within the scope of the invention to use, for example, capacitive high-frequency measuring devices for checking the rod-shaped articles or their sections.

Darüber hinaus ist es im Rahmen der Erfindung ebenfalls möglich, die zu prüfenden Abschnitte mit Strahlung aus dem nahen Infrarotbereich oder mit Licht, insbesondere Laserlicht, im Längenwellenbereich von 500 bis 1.500 nm zu beaufschlagen. Hierzu eignen sich insbesondere Diodenlaser oder Feststofflaser.In addition, it is also possible within the scope of the invention to apply the radiation to the sections to be examined from the near infrared range or with light, in particular laser light, in the wavelength range from 500 to 1500 nm. For this purpose, in particular diode lasers or solid lasers are suitable.

So ist es weiterhin im Rahmen der Erfindung denkbar, Röntgenstahllaser und entsprechende Fotoempfänger für die Messvorrichtung für die zu prüfenden Abschnitte einzusetzen.Thus, it is also conceivable within the scope of the invention to use X-ray steel lasers and corresponding photoreceptors for the measuring device for the sections to be tested.

Dazu ist insbesondere vorzusehen, dass jede Messvorrichtung für die beiden Reihen von stabförmigen Artikeln derart eingerichtet sind, um zu prüfende Abschnitte der stabförmigen Artikel bei einer Durchquerung des Durchtrittskanals jeder oder der Messvorrichtung mit elektromagnetischen Wellen im Bereich zwischen 1 GHz (1 × 109 Hz) und 20 GHz (20 × 109 Hz) oder im Bereich zwischen 10 MHz (10 × 106 Hz) und 300 MHz (300 × 106 Hz) oder im Bereich zwischen 300 GHz (300 × 109 Hz) und 300 THz (300 × 1012 Hz) zu beaufschlagen.For this purpose, provision must in particular be made for each measuring device for the two rows of rod-shaped articles to be arranged in such a way that sections of the rod-shaped articles to be tested are in a position Traversing the passageway of each or the electromagnetic wave measuring device in the range between 1 GHz (1 × 10 9 Hz) and 20 GHz (20 × 10 9 Hz) or in the range between 10 MHz (10 × 10 6 Hz) and 300 MHz (300 MHz) × 10 6 Hz) or in the range between 300 GHz (300 × 10 9 Hz) and 300 THz (300 × 10 12 Hz).

Außerdem zeichnet sich eine vorteilhafte Trommelanordnung dadurch aus, dass die Aufnahmemulden für die Durchquerung der Abschnitte der stabförmigen Artikel im Bereich der Durchtrittskanäle der Messvorrichtungen dem jeweiligen Durchtrittskanal gegenüberliegend ausgebildet sind.In addition, an advantageous drum arrangement is characterized in that the receiving troughs for the passage of the sections of the rod-shaped article in the region of the passage channels of the measuring devices are formed opposite to the respective passage channel.

Dadurch, dass die Fördertrommel einen äußeren Trommelkörper aufweist, wobei die Aufnahmemulden der beiden Reihen gegenüber der Umfangsfläche des Trommelkörpers der Fördertrommel in radialer Richtung nach außen versetzt ausgebildet sind, sind die Aufnahmemulden für die stabförmigen Artikel gegenüber dem Trommelkörper der Fördertrommel mit einer Erhöhung in radialer Richtung angeordnet, wodurch es ermöglicht ist, dass die freien Enden der zu prüfenden Abschnitte der stabförmigen Artikel bei Rotation der Fördertrommel in den Durchtrittskanal eingebracht werden.Characterized in that the conveyor drum has an outer drum body, wherein the receiving troughs of the two rows are offset from the peripheral surface of the drum body of the conveyor drum outwardly in the radial direction, the receiving troughs for the rod-shaped article relative to the drum body of the conveyor drum with an increase in the radial direction arranged, whereby it is possible that the free ends of the portions to be tested of the rod-shaped articles are introduced during rotation of the conveyor drum in the passageway.

Hierbei sind insbesondere die geförderten stabförmigen Artikel einseitig in einem vorbestimmten Abschnitt der stabförmigen Artikel in den verkürzten Aufnahmemulden angeordnet, wobei der Abschnitt der stabförmigen Artikel, die in den dafür vorgesehenen Aufnahmemulden mit Unterdruck beaufschlagt werden, um die stabförmigen Artikel während der Förderung auf der Fördertrommel mittels Unterdruck zu halten.In this case, in particular, the conveyed rod-shaped articles are arranged on one side in a predetermined section of the rod-shaped articles in the shortened receiving troughs, wherein the portion of the rod-shaped articles, which are subjected to negative pressure in the receptacles provided therefor, by the rod-shaped articles during the promotion on the conveyor drum To keep negative pressure.

Hierzu ist in einer Weiterbildung der Trommelanordnung weiterhin vorgesehen, das die Aufnahmemulden der beiden Reihen in oder auf radial nach außen sich erstreckenden, insbesondere scheibenförmigen, Ringkörpern oder in oder auf radial nach außen sich erstreckenden Ärmchen ausgebildet sind. Dadurch wird eine radiale Erhöhung der Aufnahmemulden gegenüber dem Trommelkörper erreicht. Vorzugsweise beträgt der Abstand, der auch als Überstand bezeichnet ist, zwischen dem Muldengrund der Aufnahmemulden und dem Trommelkörper bzw. dem Umfang des Trommelkörpers zwischen 15 mm und 60 mm, insbesondere zwischen 20 mm und 50 mm.For this purpose, in a further development of the drum assembly is further provided that the receiving troughs of the two rows are formed in or on radially outwardly extending, in particular disk-shaped ring bodies or in or on radially outwardly extending arms. As a result, a radial increase of the receiving wells relative to the drum body is achieved. Preferably, the distance, which is also referred to as a supernatant, between the trough bottom of the receiving wells and the drum body or the circumference of the drum body between 15 mm and 60 mm, in particular between 20 mm and 50 mm.

Dazu ist weiter vorgesehen, dass die Länge der Aufnahmemulden der beiden Reihen für die stabförmigen Artikel jeweils zwischen 15 mm und 40 mm, insbesondere zwischen 15 mm und 35 mm oder 30 mm, beträgt oder dass die Breite der Ringkörper oder die Breite der Ärmchen für die stabförmigen Artikel jeweils zwischen 15 mm und 40 mm, insbesondere zwischen 15 mm und 35 mm oder 30 mm , beträgt. Insbesondere ist die Länge der Aufnahmemulden für die stabförmigen Artikel derart bemessen oder ausgebildet, dass die Länge der Aufnahmemulden beispielsweise zwischen 1/6 und 2/5 der Länge der zu fördernden stabförmigen Artikel beträgt.For this purpose, it is further provided that the length of the receiving troughs of the two rows for the rod-shaped article is between 15 mm and 40 mm, in particular between 15 mm and 35 mm or 30 mm, or that the width of the ring body or the width of the arms for the rod-shaped article in each case between 15 mm and 40 mm, in particular between 15 mm and 35 mm or 30 mm. In particular, the length of the receiving troughs for the rod-shaped articles is dimensioned or designed such that the length of the receiving troughs is, for example, between 1/6 and 2/5 of the length of the rod-shaped articles to be conveyed.

Insbesondere weisen in einer Ausgestaltung die Aufnahmemulden für die stabförmigen Artikel jeweils seitliche Stützkörper für die in den Durchtrittskanälen zu prüfenden Artikel auf, wobei die Stützkörper aus einem nicht-metallischen Material, insbesondere Kunststoff, hergestellt sind und die Stützkörper bei Rotation der Fördertrommel zusammen mit den zu prüfenden Abschnitten der stabförmigen Artikel in die Durchtrittskanäle der Messvorrichtung einbringbar sind und diese durchqueren. Dadurch, dass die Aufnahmemulden seitliche und vorspringende Stützkörper für die stabförmigen Artikel bzw. für die zu prüfenden Abschnitte der stabförmigen Artikel aufweist, wird erreicht, dass zwischen dem äußeren Trommelkörper der Fördertrommel und den Stützkörpern in radialer Richtung ein Freiraum ist, wodurch die seitlich an den Aufnahmemulden angeordneten Stützkörper zusammen mit den darauf angeordneten Abschnitten der stabförmigen Artikel in den Durchtrittskanal der Messvorrichtung einbringbar sind, ohne dass der Stützkörper die Messung mittels der Messvorrichtung beeinflusst.In particular, in one embodiment, the receiving troughs for the rod-shaped article in each case lateral support body for the articles to be tested in the passageways, the support bodies are made of a non-metallic material, in particular plastic, and the support body with rotation of the conveyor drum together with the testing sections of the rod-shaped article in the passage channels of the measuring device can be introduced and these traverse. Characterized in that the receiving troughs lateral and projecting support body for the rod-shaped article or has for the sections to be tested, the rod-shaped article, it is achieved that between the outer drum body of the conveyor drum and the support bodies in the radial direction is a free space, whereby the laterally arranged on the receiving troughs support body together with the arranged thereon sections of the rod-shaped article in the passageway of the measuring device can be introduced without the support body influences the measurement by means of the measuring device.

Die seitlichen Stützkörper an den Aufnahmemulden bilden dabei eine Art Verlängerung der Aufnahmemulden, wobei hierbei das Material bzw. der Kunststoff für die Stützkörper derart gewählt ist, dass der Kunststoff eine möglichst geringe Dielektrizitätskonstante aufweist, wodurch ein ausreichender Kontrast zwischen dem Stützkörper und beispielsweise der mittels der Messvorrichtung erfassten Kapsel in einem Filterabschnitt erreicht wird.The lateral support body to the receiving wells form a kind of extension of the receiving wells, in which case the material or the plastic is selected for the support body such that the plastic has a very low dielectric constant, whereby a sufficient contrast between the support body and for example by means of Measuring device detected capsule is achieved in a filter section.

Darüber hinaus ist im Rahmen der Erfindung vorgesehen, dass Maßnahmen gegen Umwelteinflüsse oder aus der Umgebung einer Maschine der Tabak verarbeitenden Industrie, insbesondere Filteransetzmaschine, realisiert werden. Beispielsweise ist es im Rahmen der Erfindung möglich, dass entsprechende Blaseinrichtungen oder Heizeinrichtungen im Bereich der Fördertrommel oder an der Fördertrommel oder im Bereich der Durchtrittskanäle vorgesehen sind, um die Umgebung der Messvorrichtungen von störenden Partikeln freizuhalten oder eine vorbestimmte Feuchte bei der Durchführung der Messungen und/oder eine konstante Temperatur hierfür bereitzustellen.In addition, it is provided in the context of the invention that measures against environmental influences or from the environment of a machine of the tobacco-processing industry, in particular Filteransetzmaschine be realized. For example, it is possible within the scope of the invention that corresponding blowing devices or heating devices are provided in the region of the conveyor drum or on the conveyor drum or in the region of the passage channels in order to keep the surroundings of the measuring devices free of interfering particles or to achieve a predetermined humidity when carrying out the measurements and / or. or to provide a constant temperature therefor.

Darüber hinaus wird die Aufgabe gelöst durch eine Maschine der Tabak verarbeitenden Industrie, insbesondere Filteransetzmaschine, zur Herstellung von stabförmigen Artikeln, insbesondere Filterzigaretten, die mit einer voranstehenden Trommelanordnung ausgebildet ist. Zur Vermeidung von Wiederholungen wird auf die voranstehenden obigen Ausführungen ausdrücklich verwiesen.In addition, the object is achieved by a machine of the tobacco processing industry, in particular filter attachment machine, for the production of rod-shaped articles, in particular filter cigarettes, which is formed with a preceding drum assembly. To avoid repetition, reference is expressly made to the above statements.

Ferner wird die Aufgabe gelöst durch ein Verfahren zum Überprüfen von queraxial geförderten stabförmigen Artikeln der Tabak verarbeitenden Industrie, insbesondere zur Überprüfung von flüssigkeitsgefüllten Kapseln in Filterabschnitten von Filterzigaretten, unter Verwendung einer voranstehend beschriebenen Trommelanordnung zum queraxialen Fördern von stabförmigen Artikeln, wobei die stabförmigen Artikel in zwei Reihen nebeneinander und jeweils in jeder Reihe queraxial hintereinander in jeweils einer Reihe von Aufnahmemulden einer Fördertrommel aufgenommen sind und in queraxialer Richtung gefördert werden, wobei für jede Reihe von Aufnahmemulden jeweils eine, vorzugsweise stationäre, Messvorrichtung mit einem, vorzugsweise längserstreckten oder quererstreckten, einseitig offenen Durchtrittskanal für Abschnitte der stabförmigen Artikel vorgesehen ist, wobei während der queraxialen Förderung der stabförmigen Artikel Abschnitte der stabförmigen Artikel jeweils auf ihrem Förderweg den einseitig offenen Durchtrittskanal jeweils einer Messvorrichtung für die Abschnitte durchqueren und die Abschnitte der stabförmigen Artikel jeder Reihe während ihrer Förderung durch den Durchtrittskanal jeweils ein elektromagnetische Wellen aufweisendes Messfeld der jeweiligen Messvorrichtung durchqueren, das dadurch weitergebildet ist, dass zu prüfende Abschnitte der stabförmigen Artikel bei einer Durchquerung des Durchtrittskanals jeder oder der Messvorrichtung jeweils mit elektromagnetischen Wellen im Bereich zwischen 300 MHz (300 × 106 Hz) und 30 EHz (30 × 1018 Hz) beaufschlagt werden, wobei die stabförmigen Artikel der beiden Reihen auf der Fördertrommel derart angeordnet sind oder werden, dass die für die Messvorrichtungen vorgesehenen und zu prüfenden Abschnitte der stabförmigen Artikel der beiden Reihen einander zugewandt sind und wobei die Messvorrichtungen für die Abschnitte der stabförmigen Artikel der beiden Reihen zwischen den beiden geförderten Reihen der stabförmigen Artikel angeordnet sind.Furthermore, the object is achieved by a method for checking transversely axially conveyed rod-shaped articles of the tobacco processing industry, in particular for checking liquid-filled capsules in filter sections of filter cigarettes, using a previously described drum arrangement for Queraxialen conveying rod-shaped articles, wherein the rod-shaped article in two Rows are juxtaposed and each in each row are received transversely axially in each case in a series of receiving troughs of a conveyor drum and conveyed in transverse axial direction, wherein for each row of receiving wells in each case one, preferably stationary, measuring device with one, preferably longitudinally extended or transversely extended, open passageway is provided for sections of the rod-shaped article, wherein during the cross-axial promotion of the rod-shaped article sections of the rod-shaped articles each on their m conveying path pass through the unilaterally open passageway each a measuring device for the sections and the sections of the rod-shaped articles each row during their passage through the passageway each traversing an electromagnetic waves having measuring field of the respective measuring device, which is further developed by that to be tested sections of the rod-shaped article When passing through the passageway of each or the measuring device in each case with electromagnetic waves in the range between 300 MHz (300 × 10 6 Hz) and 30 EHz (30 × 10 18 Hz) are applied, the rod-shaped article of the two rows arranged on the conveyor drum such are or are, that provided for the measuring devices and to be tested sections of the rod-shaped articles of the two rows facing each other and wherein the measuring devices for the portions of the rod-shaped articles of the two rows between the two conveyed rows of rod-shaped articles are arranged.

Hierbei ist im Rahmen der Erfindung vorgesehen, dass das beanspruchte Verfahren an einer entsprechenden Trommelanordnung einer Ansetzmaschine, z.B. einer Filteransetzmaschine, durchgeführt wird.It is provided in the context of the invention that the claimed method on a corresponding drum assembly of a piecing machine, e.g. a Filteransetzmaschine performed.

Des Weiteren zeichnet sich das Verfahren dadurch aus, dass die stabförmigen Artikel in den Aufnahmemulden jeder Reihe jeweils mit seitlich von den Aufnahmemulden überstehenden Abschnitten, insbesondere Filterabschnitten, in einem Förderbereich angeordnet sind und/oder dass die stabförmigen Artikel der beiden Reihen paarweise und längsaxial voneinander beabstandet in den Aufnahmemulden der Fördertrommel gefördert werden. Dadurch ist es möglich, dass die Messvorrichtungen zwischen den beiden Reihen der stabförmigen Artikel angeordnet sind oder werden.Furthermore, the method is characterized in that the rod-shaped articles in the receiving wells of each row are each arranged with laterally projecting from the receiving troughs sections, in particular filter sections, in a conveyor region and / or that the rod-shaped article of the two rows in pairs and longitudinal axial distance from each other be promoted in the receiving troughs of the conveyor drum. This makes it possible for the measuring devices to be arranged between the two rows of rod-shaped articles.

Des Weiteren zeichnet sich eine Weiterbildung des Verfahrens dadurch aus, dass zu prüfende Abschnitte der stabförmigen Artikel bei einer Durchquerung des Durchtrittskanals jeder oder der Messvorrichtung jeweils mit elektromagnetischen Wellen im Bereich im Bereich zwischen 1 GHz (1 × 109 Hz) und 20 GHz (20 × 109 Hz) oder im Bereich zwischen 10 MHz (10 × 106 Hz) und 300 MHz (300 × 106 Hz) oder im Bereich zwischen 300 GHz (300 × 109 Hz) und 300 THz (300 × 1012 Hz) beaufschlagt werden.Furthermore, a further development of the method is characterized in that sections of the rod-shaped article to be tested pass through the passageway of each or the measuring device respectively with electromagnetic waves in the range between 1 GHz (1 × 10 9 Hz) and 20 GHz (20 × 10 9 Hz) or in the range between 10 MHz (10 × 10 6 Hz) and 300 MHz (300 × 10 6 Hz) or in the range between 300 GHz (300 × 10 9 Hz) and 300 THz (300 × 10 12 Hz ).

Außerdem ist es im Rahmen der Erfindung vorgesehen, dass in Abhängigkeit der Messergebnisse nach der Prüfung der Abschnitte der stabförmigen Artikel, insbesondere der kapselbefüllten Filterabschnitte der Filterzigaretten, Filterzigaretten mit einer defekten Kapsel oder einer nicht vorhandenen Kapsel im Filter aus dem Produktionsprozess an einer Filteransetzmaschine ausgeschleust werden.Moreover, it is provided in the context of the invention that, depending on the measurement results after the examination of the sections of the rod-shaped article, in particular the capsule-filled filter sections filter cigarettes, filter cigarettes with a defective capsule or a non-existent capsule in the filter are discharged from the production process on a filter attachment machine.

Weitere Merkmale der Erfindung werden aus der Beschreibung erfindungsgemäßer Ausführungsformen zusammen mit den Ansprüchen und den beigefügten Zeichnungen ersichtlich. Erfindungsgemäße Ausführungsformen können einzelne Merkmale oder eine Kombination mehrerer Merkmale erfüllen.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.

Die Erfindung wird nachstehend ohne Beschränkung des allgemeinen Erfindungsgedankens anhand von Ausführungsbeispielen unter Bezugnahme auf die Zeichnungen beschrieben, wobei bezüglich aller im Text nicht näher erläuterten erfindungsgemäßen Einzelheiten ausdrücklich auf die Zeichnungen verwiesen wird. Es zeigen:

Fig. 1
schematisch eine Filteransetzmaschine in einer Vorderansicht,
Fig. 2
im Ausschnitt schematisch eine Querschnittsansicht einer Fördertrommel einer Filteransetzmaschine mit zwei Mikrowellenresonatorvorrichtun-gen für Filterzigaretten;
Fig. 3
eine schematische perspektivische Darstellung von Teilen eines Ausführungsbeispiels einer An-ordnung mit einer Mikrowellenmessvorrichtung,
Fig. 4a), b)
schematische perspektivische Schnittdarstellungen durch ein Ausführungsbeispiel einer weiteren Mikrowellenmessvorrichtung,
Fig. 5a), b)
verschiedene perspektivische schematische Darstellungen und Schnittdarstellungen einer Mikrowellenmessvorrichtung,
Fig. 6
eine schematische Ansicht eines als Mikrowellenmessvorrichtung ausgebildeten Helix-Mikrowellenresonators,
Fig. 7a), b)
schematische Schnittdarstellungen durch ein Ausführungsbeispiel einer Mikrowellenmessvorrichtung mit Mikrowellenmessfeldern in einem beladenen Zustand,
Fig. 8a), b), c)
Detailansichten und schematische Schnittdarstellungen durch einen Messkondensator.
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
schematically a filter attachment machine in a front view,
Fig. 2
in the section schematically a cross-sectional view of a conveyor drum of a filter attachment machine with two Mikrowellenresonatorvorrichtun gene for filter cigarettes;
Fig. 3
1 is a schematic perspective view of parts of an embodiment of an arrangement with a microwave measuring device,
Fig. 4a), b)
schematic perspective sectional views through an embodiment of another microwave measuring device,
Fig. 5a), b)
various perspective schematic representations and sectional views of a microwave measuring device,
Fig. 6
1 is a schematic view of a helical microwave resonator designed as a microwave measuring device,
Fig. 7a), b)
schematic sectional views through an embodiment of a microwave measuring device with microwave measuring fields in a loaded state,
Fig. 8a), b), c)
Detailed views and schematic sectional views through a measuring capacitor.

In den Zeichnungen sind jeweils gleiche oder gleichartige Elemente und/oder Teile mit denselben Bezugsziffern versehen, so dass von einer erneuten Vorstellung jeweils abgesehen wird.In the drawings, the same or similar elements and / or parts are provided with the same reference numerals, so that apart from a new idea each.

In Fig. 1 ist eine Filteransetzmaschine in einer Vorderansicht ausschnittsweise dargestellt, wobei die Filteransetzmaschine über eine Trommelanordnung T zur Zuführung von Tabakstöcken von einer schematisch eingezeichneten Zigarettenstrangmaschine P Tabakstöcke doppelter Gebrauchslänge empfängt. Eine Zigarettenstrangmaschine ist unter der Bezeichnung "PROTOS" der Patentanmelderin bekannt.In Fig. 1 a Filteransetzmaschine is shown in fragmentary form in a front view, wherein the Filteransetzmaschine via a drum assembly T for supplying tobacco sticks from a schematically drawn cigarette rod machine P tobacco sticks of double-use length receives. A cigarette rod machine is known under the name "PROTOS" of the patent applicant.

Auf ihrem Förderweg zu einer Zusammenstelltrommel 21 werden die Tabakstöcke doppelter Gebrauchslänge geschnitten und längsaxial gespreizt. Auf der Zusammenstelltrommel 21 werden über eine weitere Trommelanordnung M doppeltlange Filterstopfen transportiert, die jeweils zwischen zwei längsaxial beabstandete Tabakstöcke eingefügt werden. Hierdurch wird auf der Zusammenstelltrommel 21 eine Folge von queraxial hintereinander angeordneten Tabakstock-Filterstopfen-Tabakstock-Gruppen gebildet. Als Filterstopfen werden dabei auch Filter bzw. Filterstopfen zwischen die beabstandeten Tabakstockpaare eingelegt, die flüssigkeitsgefüllte Kapseln aufweisen.On their conveyor to a compilation drum 21, the tobacco rods are cut twice the length of use and spread longitudinally axially. 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 is formed on the assembly drum 21. As a filter plug while filter or filter plug between the spaced tobacco rod pairs are inserted, the liquid-filled capsules have.

Die zusammengestellten Artikelgruppen werden von der Zusammenstelltrommel 21 an eine Fördertrommel 22 übergeben und zu einem Belagapparat 10 die zusammengestellten Tabakstock-Filterstopfen-Tabakstock-Gruppen transportiert. In DE-C-39 18 137 ist ausführlich ein Belagapparat beschrieben, der vollumfänglich in den Inhalt der vorliegenden Anmeldung aufgenommen wird.The assembled article groups are transferred from the assembly drum 21 to a conveyor drum 22 and transported to a coating apparatus 10, the assembled tobacco rod filter plug tobacco rod groups. In DE-C-39 18 137 There is described in detail a coating apparatus which is fully incorporated in the content of the present application.

Ein beleimter und geförderter Belagpapierstreifen 11 wird im Belagapparat 10 auf einer Schneidtrommel 12 von den Messern einer Messerwalze 13 in Belagblättchen bzw. Verbindungsblättchen geschnitten. Die geschnittenen Verbindungsblättchen werden jeweils an die Artikelgruppen bzw. Tabakstock-Filterstopfen-Tabakstock-Gruppen auf der Fördertrommel 22 übergeben bzw. angeheftet.A glued and conveyed tipping paper strip 11 is cut in the tipping apparatus 10 on a cutting drum 12 by the knives of a knife roller 13 in tufts or connecting laminae. The cut compound leaflets are respectively transferred to the article groups or tobacco rod filter plug tobacco rod groups on the conveyor drum 22 or pinned.

Nach dem Anheften der geschnittenen und der einzelnen Verbindungsblättchen an jeweils eine Artikelgruppe werden die Artikelgruppen weiter zu einer nachfolgenden Rolltrommel 26 und einer Rolleinrichtung 27 transportiert, mittels der die Verbindungsblättchen vollständig um die Tabakstock-Filterstopfen-Tabakstock-Gruppen herumgewickelt werden. Die Rolleinrichtung 27 besteht in einer Ausgestaltung aus einem Stegrad, einer Rollhand mit einer Rollfläche und ausgangsseitig einer Rollwalze, wobei die Rollfläche und die Rolltrommel 26 einen Rollkanal bilden, in dem Artikelgruppen mit den Verbindungsblättchen umwickelt werden, womit doppeltlange Filterzigaretten gebildet werden.After adhering the cut and individual bonding sheets to one article group each, the article groups are further transported to a subsequent rolling drum 26 and a rolling device 27 by which the bonding sheets are completely wrapped around the tobacco rod filter plug tobacco rod groups be wrapped around. The rolling device 27 consists in one embodiment of a web wheel, a rolling hand with a rolling surface and the output side of a rolling roller, wherein the rolling surface and the rolling drum 26 form a rolling channel, are wrapped in the article groups with the connecting blades, with double-length filter cigarettes are formed.

Die doppeltlangen Filterzigaretten werden nachfolgend an eine Fördertrommel 28 und weiter nachfolgend an eine weitere Fördertrommel 29 übergeben und für den weiteren Bearbeitungsprozess an einer Filteransetzmaschine bereitgestellt.The double-length filter cigarettes are subsequently transferred to a conveyor drum 28 and further below to a further conveyor drum 29 and provided for the further processing process on a filter attachment machine.

Von der Fördertrommel 29 werden die doppeltlangen Filterzigaretten über eine Fördertrommel 30 zu einer Schneidtrommel 31 gefördert, an der ein Schneidmesser 32 angeordnet ist, welches aus den doppeltlangen Filterzigaretten durch einen mittigen Trennschnitt Filterzigaretten einfacher Gebrauchslänge herstellt.From the conveyor drum 29, the double-length filter cigarettes are conveyed via a conveyor drum 30 to a cutting drum 31, on which a cutting blade 32 is arranged, which produces from the double-length filter cigarettes by a central separating cut filter cigarettes simple use length.

Die Filterzigaretten werden anschließend von der Schneidtrommel 31 an eine Spreiztrommel 33 übergeben. Auf der Spreiztrommel 33 werden die Filterzigarettenpaare längsaxial voneinander beabstandet, so dass zwei (einlagige) Reihen mit queraxial hintereinander angeordneten Filterzigaretten gebildet werden. Anschließend werden die Filterzigaretten beider längsaxial beabstandeter Reihen, d.h. die längsaxial beanstandeten Filterzigaretten an eine Prüftrommel 34 übergeben. Die Filterzigaretten beider Reihen sind jeweils mit einem Filterstopfen versehen, die jeweils wenigstens eine flüssigkeitsgefüllte Kapsel aufweisen.The filter cigarettes are then transferred from the cutting drum 31 to a spreading drum 33. On the spreader drum 33, the pairs of filter cigarettes are spaced longitudinally from one another so that two (single-ply) rows are formed with filter cigarettes arranged transversely axially one behind the other. Subsequently, the filter cigarettes of both longitudinally axially spaced rows, i. pass the longitudinally axially spaced filter cigarettes to a test drum 34. The filter cigarettes of both rows are each provided with a filter plug, each having at least one liquid-filled capsule.

An der Prüftrommel 34 ist ein Prüforgan 44 angeordnet, welches die Filterzigaretten einer Prüfung, z.B. einer Kopfendenprüfung, unterzieht.On the test drum 34, a test device 44 is arranged, which subjects the filter cigarettes of a test, for example, a head end test.

Im Rahmen der Erfindung ist es möglich, dass die hergestellten Filterzigaretten an dem Prüforgan 44 einer Dichtigkeitsprüfung und/oder einer Kopfendenprüfung und/oder einer Ventilationsprüfung unterzogen werden. Darüber hinaus ist es im Rahmen der Erfindung möglich, dass mittels des Prüforgans 44 oder eines weiteren Prüforgans eine optische Prüfung der Zigaretten auf der Prüftrommel 34 durchgeführt wird.Within the scope of the invention, it is possible for the filter cigarettes produced to be subjected to a leak test and / or a head end test and / or a ventilation test on the test element 44. In addition, it is possible within the scope of the invention that an optical examination of the cigarettes on the test drum 34 is carried out by means of the test element 44 or a further test element.

Anschließend werden die Zigaretten von der Prüftrommel 34 an eine nachfolgende Fördertrommel 35 übergeben, an der ein schematisch dargestelltes Prüforgan 45 mit Mikrowellenresonatorvorrichtungen (vgl. Fig. 2) für die zwei voneinander beabstandeten, einlagigen Reihen mit Filterzigaretten angeordnet ist, um die hergestellten Filterzigaretten einer weiteren Qualitätsprüfung zu unterziehen und um die Zustände der flüssigkeitsgefüllten Kapseln in den einzelnen Filterstopfen oder in den Filterabschnitten der an der Filteransetzmaschine hergestellten Filterzigaretten zu erfassen, bevor die hergestellten Filterzigaretten von der Filteransetzmaschine an eine nachfolgende (hier nicht dargestellte) Massenstromtransporteinrichtung für die Filterzigaretten übergeben werden.Subsequently, the cigarettes are transferred from the test drum 34 to a subsequent conveyor drum 35, at which a schematically illustrated test device 45 with Mikrowellenresonatorvorrichtungen (see. Fig. 2 ) for the two spaced-apart, single-ply rows of filter cigarettes for further quality-testing the manufactured filter cigarettes and for detecting the conditions of the liquid-filled capsules in the individual filter plugs or in the filter sections of the filter cigarettes produced on the filter attachment machine before the manufactured ones Filter cigarettes are transferred from the filter attachment machine to a subsequent (not shown here) mass flow transport device for the filter cigarettes.

In Fig. 2 ist ein schematischer Ausschnitt der Fördertrommel 35 der Filteransetzmaschine (vgl. Fig. 1) im Querschnitt mit einem Prüforgan 45 für die flüssigkeitsbefüllten Kapseln in den Filterstopfen der auf der Fördertrommel 35 queraxial geförderten Filterzigaretten gezeigt. Die Fördertrommel 35 ist dabei Bestandteil einer Trommelanordnung einer Filteransetzmaschine zum queraxialen Fördern von stabförmigen Artikeln, insbesondere von Filterzigaretten und/oder deren Komponenten, wobei die Trommelanordnung mehrere Fördertrommel aufweist.In Fig. 2 is a schematic section of the conveyor drum 35 of the filter attachment machine (see. Fig. 1 ) In cross-section with a test device 45 for the liquid-filled capsules in the filter plug of the conveyor drum 35 on the cross-axially funded filter cigarettes shown. The conveyor drum 35 is part of a drum assembly of a filter attachment for Queraxialen conveyance of rod-shaped articles, in particular filter cigarettes and / or their components, wherein the drum assembly comprises a plurality of conveyor drum.

Die Fördertrommel 35 weist einen Trommelkörper 36 auf, auf dessen Außenseite zwei voneinander beabstandete Ringkörper 37.1, 37.2 angeordnet sind, die jeweils Aufnahmemulden 38.1, 38.2 für die an der Filteransetzmaschine hergestellten Filterzigaretten 50.1, 50.2 aufweisen. Die in Fig. 2 gezeigten einzelnen Filterzigaretten 50.1, 50.2 sind jeweils Teil einer Reihe an Filterzigaretten, wobei die beiden Reihen mit Filterzigaretten 50.1, 50.2 längsaxial voneinander beabstandet sind. Die Filterzigaretten 50.1, 50.2 weisen jeweils einen Tabakstock 51.1, 51.2 und einen Filterstopfen 52.1, 52.2 auf, wobei im Inneren der Filterstopfen 52.1, 52.2 jeweils eine flüssigkeitsbefüllte Kapsel 55 eingebracht ist.The conveyor drum 35 has a drum body 36, on the outside of which two spaced-apart annular bodies 37.1, 37.2 are arranged, which each have receiving cavities 38.1, 38.2 for the filter cigarettes 50.1, 50.2 produced on the filter attachment machine. In the Fig. 2 shown individual filter cigarettes 50.1, 50.2 are each part of a series of filter cigarettes, wherein the two rows of filter cigarettes 50.1, 50.2 longitudinally spaced apart from each other. The filter cigarettes 50.1, 50.2 each have a tobacco rod 51.1, 51.2 and a filter plug 52.1, 52.2, wherein in the interior of the filter plug 52.1, 52.2 each a liquid-filled capsule 55 is introduced.

Die Länge der Aufnahmemulden 38.1, 38.2 ist kleiner als die Länge der Filterzigaretten 50.1, 50.2. Typischerweise beträgt die Länge der Aufnahmemulden 38.1, 38.2 zwischen 15 mm und 40 mm, insbesondere zwischen 15 mm und 30mm. Die symmetrisch zueinander angeordneten Filterzigaretten 50.1, 50.2 sind jeweils auf den Aufnahmemulden 38.1, 38.2 asymmetrisch angeordnet, wobei der Tabakstock 51.1, 51.2 mittels eines bereitgestellten Unterdrucks mit einem Haltevakuum beaufschlagt ist und in den Aufnahmemulden 38.1, 38.2 gehalten wird.The length of the receiving wells 38.1, 38.2 is smaller than the length of the filter cigarettes 50.1, 50.2. The length of the receiving wells 38.1, 38.2 is typically between 15 mm and 40 mm, in particular between 15 mm and 30 mm. The symmetrically mutually arranged filter cigarettes 50.1, 50.2 are each arranged asymmetrically on the receiving wells 38.1, 38.2, wherein the tobacco rod 51.1, 51.2 is acted upon by means of a negative pressure provided with a holding vacuum and is held in the receiving wells 38.1, 38.2.

Dadurch, dass ein schmaler Ringkörper 37.1, 37.2 jeweils für eine Reihe mit Filterzigaretten 50.1, 50.2 vorgesehen ist und ein Abschnitt der Tabakstöcke 51.1, 51.2 der Filterzigaretten 50.1, 50.2 Kontakt mit den schmalen Aufnahmemulden 38.1, 38.2 hat, werden die Filterzigaretten 50.1, 50.2 einseitig auf der Fördertrommel 35 gehalten und angeordnet, so dass ein Freiraum zwischen den freien, ungestützten Abschnitten der Filterzigaretten 50.1, 50.2 mit dem jeweiligen Filterstopfen 52.1, 52.2 und der Außenseite des Trommelkörpers 36 entsteht bzw. ausgebildet ist.Characterized in that a narrow annular body 37.1, 37.2 is provided in each case for a series with filter cigarettes 50.1, 50.2 and a portion of the tobacco sticks 51.1, 51.2 of the filter cigarettes 50.1, 50.2 contact with the narrow receiving wells 38.1, 38.2 has, the filter cigarettes 50.1, 50.2 on one side held and arranged on the conveyor drum 35 so that a free space between the free, unsupported portions of the filter cigarettes 50.1, 50.2 with the respective filter plug 52.1, 52.2 and the outside of the drum body 36 is formed or formed.

Das in Fig. 2 dargestellte Prüforgan 45 weist zwei Mikrowellenmessvorrichtungen 60.1, 60.2 auf, die jeweils einen Durchtrittskanal 62.1, 62.2 für die freien Abschnitte der Filterzigaretten 50.1, 50.2 mit den ungestützten, freien Filterstopfen 52.1, 52.2 aufweisen. Die Durchtrittskanäle 62.1 62.2 sind derart dimensioniert, dass die freien Abschnitte mit den einander zugewandten Filterstopfen 52.1, 52.2 jeweils ein elektromagnetische Wellen aufweisendes Messfeld, insbesondere im Mikrowellenmessfeld, der zwei Mikrowellenmessvorrichtungen 60.1, 60.2 durchqueren, so dass der Zustand der flüssigkeitsbefüllten Kapseln 55 in den Filterstopfen 52.1, 52.2 einzeln und gleichzeitig überprüft bzw. überwacht wird.This in Fig. 2 Test device 45 shown has two microwave measuring devices 60.1, 60.2, each having a passage channel 62.1, 62.2 for the free portions of the filter cigarettes 50.1, 50.2 with the unsupported, free filter plug 52.1, 52.2. The passageways 62.1 62.2 are dimensioned such that the free sections with the facing filter plugs 52.1, 52.2 each pass through an electromagnetic wave measuring field, in particular in the microwave measuring field, the two microwave measuring devices 60.1, 60.2, so that the state of the liquid-filled capsules 55 in the filter plug 52.1, 52.2 individually and simultaneously checked or monitored.

Die Messergebnisse der Mikrowellenmessvorrichtungen 60.1, 60.2 werden jeweils an eine Auswerteeinrichtung 56, z.B. Maschinensteuerung, übermittelt, so dass mittels der Auswerteeinrichtung 56 die Filterzigaretten mit einer defekten Kapsel 55 nach deren Erkennung aus dem weiteren Produktionsprozess an einer entsprechenden Stelle beispielsweise an der Filteransetzmaschine entfernt werden.The measurement results of the microwave measurement devices 60.1, 60.2 are each sent to an evaluation device 56, e.g. Machine control, transmitted, so that by means of the evaluation device 56, the filter cigarettes with a defective capsule 55 are removed after their detection from the further production process at a corresponding point, for example, at the filter attachment machine.

Die U-förmigen Mikrowellenmessvorrichtungen 60.1, 60.2 sind zwischen den beiden Ringkörpern 37.1, 37.2 der Fördertrommel 35 angeordnet, so dass die Durchtrittskanäle 62.1, 62.2 nach außen gerichtet sind, wodurch bei Rotation der Fördertrommel 35 die Abschnitte der Filterzigaretten 50.1, 50.2 mit den jeweils eine Kapsel 55 aufweisenden Filterstopfen 52.1, 52.2 durch die Durchtrittskanäle 62.1, 62.2 gefördert werden.The U-shaped microwave measuring devices 60.1, 60.2 are arranged between the two annular bodies 37.1, 37.2 of the conveyor drum 35, so that the passage channels 62.1, 62.2 are directed outwards, whereby upon rotation of the conveyor drum 35, the sections of the filter cigarettes 50.1, 50.2 with each one Capsule 55 having filter plug 52.1, 52.2 are conveyed through the passageways 62.1, 62.2.

Im Rahmen der Erfindung ist es in einer (hier nicht dargestellten) Ausführungsform vorgesehen, dass an den Ringkörper 37.1, 37.2 seitliche, vorzugsweise langgestreckte oder zungenartige, Stützkörper oder dergleichen für die Abschnitte der Filterzigaretten 50.1, 50.2, die in die Durchtrittskanäle 62.1, 62.2 eingebracht werden, vorgesehen sind, wobei zwischen der Unterseite der Stützkörper und der Außenseite des Trommelkörpers 36 ein Freiraum stets vorhanden bzw. ausgebildet ist.In the context of the invention, it is provided in an embodiment (not shown) that on the ring body 37.1, 37.2 lateral, preferably elongated or tongue-like, supporting body or the like for the sections of the filter cigarettes 50.1, 50.2, which are introduced into the passageways 62.1, 62.2, are provided, wherein between the underside of the support body and the outside of the drum body 36, a free space is always present or formed.

In den nachfolgenden Figuren werden verschiedene Ausführungsformen für die an der Fördertrommel 35 in Fig.2 schematisch dargestellten Mikrowellenmessvorrichtungen 60.1, 60.2 näher erläutert.In the following figures, various embodiments for the on the conveyor drum 35 in Fig.2 schematically illustrated microwave measuring devices 60.1, 60.2 explained in more detail.

Fig. 3 zeigt eine schematische perspektivische Darstellung von Teilen eines Ausführungsbeispiels einer Anordnung mit einer Mikrowellenmessvorrichtung 60, die an einer Fördertrommel einer Filteransetzmaschine angeordnet ist. Aus Gründen der Übersichtlichkeit wurde von der Einzeichnung der Fördertrommel abgesehen. Fig. 3 shows a schematic perspective view of parts of an embodiment of an arrangement with a microwave measuring device 60, which is arranged on a conveyor drum of a filter attachment machine. For reasons of clarity, the marking of the conveyor drum was omitted.

Die Anordnung umfasst eine Mikrowellenmessvorrichtung 60 mit einem Gehäuse 72, das einen Reflexionsresonator 74 mit einer Mikrowelleneinkopplung 80 umfasst. Eine Blende 84 ist gestrichelt angedeutet und trennt den Mikrowelleneinkopplungshohlraum 80 vom Reflexionsresonator 74 ab. Im oberen Bereich ist der Reflexionsresonator 74 durchbrochen von einem Durchtrittskanal 62, der gabelförmig ausgebildet ist. Dieser umfasst eine erste Wandung 64 und eine zweite Wandung 66 und ist mittels einer Abschlusswand 68 seitlich abgeschlossen. Damit ist der Durchtrittskanal 62 im Querschnitt "U"-förmig. Dadurch wird verhindert, dass das Mikrowellenfeld im Inneren des Resonators in größerem Maße austritt. Dazu trägt bei, dass die erste Wandung 64 und die zweite Wandung 66 deutlich über den Resonatorhohlraum hinausragen.The arrangement comprises a microwave measuring device 60 with a housing 72, which comprises a reflection resonator 74 with a microwave coupling 80. An aperture 84 is indicated by dashed lines and separates the Mikrowelleneinkopplungshohlraum 80 from the reflection resonator 74. In the upper area of the reflection resonator 74 is pierced by a passageway 62 which is fork-shaped. This comprises a first wall 64 and a second wall 66 and is laterally closed by means of an end wall 68. Thus, the passageway 62 in cross-section "U" -shaped. This prevents the microwave field in the interior of the resonator from escaping to a greater extent. Contributing to this is that the first wall 64 and the second wall 66 project significantly beyond the resonator cavity.

Durch den Durchtrittskanal 62 verläuft ein Förderweg 100 von stabförmigen Artikeln, in diesem Fall Filterzigaretten 50, die einen Tabakstock 51, der nur teilweise dargestellt ist, sowie Filterstopfen 52 mit Kapseln 55 umfassen.Through the passageway 62 extends a conveying path 100 of rod-shaped articles, in this case filter cigarettes 50, the one Tobacco stick 51, which is only partially shown, as well as filter plug 52 with capsules 55 include.

Der Resonatorhohlraum selbst ist mittels Schutzblenden 326, 327, die aus einem für Mikrowellen durchlässigen Material bestehen, beispielsweise PEEK (Polyetheretherketon), abgedeckt. Dies verhindert, dass Schmutz in den Mikrowellenresonator eindringt. Durch die Schutzblenden 326, 327 ist der Reflexionsresonator 74 in drei Resonatorhohlraumabschnitte 325, 325', 325" aufgeteilt.The resonator cavity itself is covered by means of protective shields 326, 327, which consist of a material permeable to microwaves, for example PEEK (polyether ether ketone). This prevents dirt from entering the microwave resonator. Through the shields 326, 327, the reflection resonator 74 is divided into three resonator cavity sections 325, 325 ', 325 ".

Fig. 4a) und 4b) zeigen schematische perspektivische Schnittdarstellungen durch ein Ausführungsbeispiel einer Mikrowellenmessvorrichtung 60. Es handelt sich jeweils um Schnittdarstellungen durch die Mikrowellenmessvorrichtung 60, und zwar in einer Schnittebene, die längs durch den Filterstopfen 52 mit der Kapsel 55 verläuft, die mittig auf ihrem Förderweg 100 in dem Durchtrittskanal 62 angeordnet ist in Fig. 4a), und in einem Schnitt, der quer zur Längserstreckung des Filterstopfens 52 verläuft, in Fig. 4b). Fig. 4a) and 4b These are schematic sectional views through an embodiment of a microwave measuring device 60. These are in each case sectional views through the microwave measuring device 60, in a sectional plane which extends longitudinally through the filter plug 52 with the capsule 55, the center of their conveying path 100 in the passageway 62 is arranged in Fig. 4a ), and in a section which extends transversely to the longitudinal extent of the filter plug 52, in Fig. 4b ).

Die Mikrowellenmessvorrichtung 60 umfasst mehrere Teile. Die Mikrowellen werden in einer Mikrowelleneinkopplung eingekoppelt, die einen Mikrowelleneinkopplungshohlraum 330 und eine Antenne 336 umfasst, die sowohl als Einkopplungsantenne als auch als Auskopplungsantenne betrieben wird. Hierdurch wird auch Bauraum eingespart. Der Mikrowelleneinkopplungshohlraum 330 wird begrenzt durch eine Wand mit einer kreisförmigen oder ovalen Blende 84, durch die Mikrowellen in den Resonatorhohlraum 124 eindringen. Die Blendenöffnung kann auch andere Formen haben, oder es sind mehrere Blendenöffnungen möglich, wobei diese beispielsweise entsprechend der einzuspeisenden Mode des Mikrowellenfeldes wählbar sein kann.The microwave measuring device 60 comprises several parts. The microwaves are coupled in a microwave launch comprising a microwave launch cavity 330 and an antenna 336 that operates as both a launch antenna and a launch antenna. As a result, space is saved. The microwave injection cavity 330 is defined by a wall having a circular or oval aperture 84 through which microwaves penetrate into the resonator cavity 124. The aperture can also have other shapes, or multiple apertures are possible, which can be selected, for example, according to the fed-in mode of the microwave field.

Der Resonatorhohlraum 124 ist durch den Durchtrittskanal 62 in zwei separate Teile bzw. Resonatorhohlraumabschnitte 325, 325' geteilt. Die Fortsetzung des Resonatorhohlraums 124 im Durchtrittskanal 62 selbst kann als weiterer Resonatorhohlraumabschnitt 325" angesehen werden. Die Schutzblenden 326, 327, die diese Resonatorhohlraumabschnitte 325, 325' des Resonatorhohlraums 124 vom Durchtrittskanal 62 trennen, sind für Mikrowellen durchlässig, so dass sich ein gemeinsamer Resonatorhohlraum 124 mit zwei bzw. drei Teilen bzw. Teilräumen, den Resonatorhohlraumabschnitten 325, 325', 325" ergibt. Der mittlere Resonatorhohlraumabschnitt 325" ist dabei derjenige, der im Durchtrittskanal 62 liegt, während die beiden anderen durch mikrowellendurchlässige Schutzblenden 326, 327 vor Verschmutzung geschützt sind, so dass eine gleichbleibend hohe Güte des Reflexionsresonators 121 gewährleistet ist.The resonator cavity 124 is divided by the passageway 62 into two separate resonator cavity sections 325, 325 '. The continuation of the resonator cavity 124 in the passageway 62 itself may be considered as another resonator cavity portion 325. The shields 326, 327 separating these resonator cavity portions 325, 325 'of the resonator cavity 124 from the passageway 62 are microwave permeable, so that a common resonator cavity 124 with two or three parts, the resonator cavity sections 325, 325 ', 325 ". The middle resonator cavity section 325 "is the one that lies in the passageway 62, while the other two are protected against contamination by microwave-permeable shields 326, 327, so that a consistently high quality of the reflection resonator 121 is ensured.

Der Resonatorhohlraum 124 ist durch eine Reflexionsfläche 332, die der Blende 84 gegenüberliegt, abgeschlossen. Mikrowellen, die durch die Blende 84 in den Resonatorhohlraum 124 gelangen, werden an der Reflexionsfläche 332 reflektiert und gelangen zurück durch die Blende 84 zur Antenne 336. Dabei durchlaufen sie zweifach den Durchtrittskanal 62 mit gegebenenfalls darin positionierten Filterstopfen 52 und Kapseln 55.The resonator cavity 124 is closed by a reflection surface 332, which opposes the aperture 84. Microwaves that pass through the aperture 84 into the resonator cavity 124 are reflected at the reflective surface 332 and pass back through the aperture 84 to the antenna 336. In doing so, they pass through the passageway 62 with filter plugs 52 and capsules 55 optionally positioned therein.

In dem in Fig. 4a) und 4b) dargestellten Ausführungsbeispiel ist die Ausdehnung des Resonatorhohlraums 124 im Querschnitt in Längsrichtung des stabförmigen Artikels kleiner als in Querrichtung dazu. Damit wird eine gute Auflösung in der Längserstreckung des stabförmigen Artikels erzielt. Dies ist auch in der Form und Anordnung der Schutzblenden 326, 327 erkennbar, die nur den Abschnitt rund um die Soll-Position von Kapseln 55 im Filterstopfen 52 der Filterzigaretten 50 bedecken. Es ist auch möglich, die Längen- und Breitenverhältnisse umzukehren, so dass der queraxial geförderte stabförmige Artikel auf die Breitseite des Querschnitts des Resonatorhohlraums 124 trifft. Hiermit lässt sich eine gute Ortsauflösung quer zur Längserstreckung des stabförmigen Artikels erreichen. Es können auch mehrere gleichartige Mikrowellenmessvorrichtungen 60 des zuerst genannten Typs gestaffelt hintereinander angeordnet werden, um die gesamte Länge beispielsweise eines Filterstopfens 52 einer Filterzigarette 50 abzutasten.In the in Fig. 4a) and 4b ), the extension of the resonator cavity 124 in the cross-section in the longitudinal direction of the rod-shaped article is smaller than in the transverse direction thereto. This achieves a good resolution in the longitudinal extent of the rod-shaped article. This can also be seen in the form and arrangement of the protective covers 326, 327, which cover only the portion around the desired position of capsules 55 in the filter plug 52 of the filter cigarettes 50. It is also possible to reverse the length and width ratios, so that the queraxial promoted rod-shaped article hits the broad side of the cross-section of the resonator cavity 124. Hereby, a good spatial resolution can be achieved transversely to the longitudinal extent of the rod-shaped article. Also, a plurality of similar microwave measuring devices 60 of the former type may be staggered one behind the other to scan the entire length of, for example, a filter plug 52 of a filter cigarette 50.

Bei der in Fig. 4a) und 4b) gezeigten Anordnung wird das Mikrowellenmessfeld im Resonatorhohlraum 124 durch die seitlich überragenden Wandungen 64, 66 sowie die Abschlusswand 68 wirksam daran gehindert, nach außen auszutreten.At the in Fig. 4a) and 4b ), the microwave measuring field in the resonator cavity 124 is effectively prevented from leaking to the outside by the laterally projecting walls 64, 66 and the end wall 68.

Die Einkopplungsantenne 336 im Mikrowelleneinkopplungshohlraum 330 ist in Fig. 4a) und 4b) seitlich in der langen Seite angeordnet. Die Öffnung der Blende 84 ist oval ausgebildet.The launching antenna 336 in the microwave injection cavity 330 is in FIG Fig. 4a) and 4b ) arranged laterally in the long side. The opening of the aperture 84 is oval.

In Fig. 5 sind in den Teilfiguren a) und b) zwei unterschiedliche Ansichten eines entsprechenden Hohlleiterresonators 134 gezeigt. Fig. 5a) zeigt dabei einen Schnitt quer durch den Resonator 134 und die Gabel 137, der die Förderbahn der nicht dargestellten queraxial geförderten Artikel umfasst. Dabei sind auch die nicht leitenden Fenster 142 erkennbar, die den Durchtrittskanal 62 von den Teilräumen 136, 136' des Hohlleiterresonators 134 trennen und vor Eindringen von Staub schützen.In Fig. 5 In the subfigures a) and b) two different views of a corresponding waveguide resonator 134 are shown. Fig. 5a ) shows a section across the resonator 134 and the fork 137, which comprises the conveying path of the cross-axially conveyed article, not shown. In this case, the non-conductive window 142 can be seen that separate the passageway 62 of the sub-spaces 136, 136 'of the waveguide resonator 134 and protect against ingress of dust.

Fig. 5b) zeigt eine weitere perspektivische Ansicht des Hohlleiterresonators 134 mit Gabel 137, wobei in den Durchtrittskanal 62 hineingesehen wird. Es ist erkennbar, ebenso wie in dem Schnitt der Fig. 5a), dass der Duchtrittskanal 62 einen Bogenabschnitt beschreibt, entsprechend dem Förderweg auf einer Muldentrommel bzw. Fördertrommel. Fig. 5b ) shows a further perspective view of the waveguide resonator 134 with fork 137, wherein is seen in the passageway 62. It is recognizable, as well as in the cut of the Fig. 5a ), that the Duchtrittskanal 62 describes an arc section, corresponding to the conveying path on a drum trunk or conveyor drum.

Fig. 6 zeigt eine schematische Querschnittsdarstellung einer Mikrowellenmessvorrichtung 60 mit dem Helix-Mikrowellenresonator 250 in einer Schnittebene, die in Längsrichtung durch eine queraxial geförderte Zigarette mit Tabakstock 51 und überstehendem Abschnitt, einem Filterstopfen 52 mit einer Kapsel 55, verläuft. Diese wird queraxial durch einen Durchtrittskanal 62 des Gehäuses 260 der Messvorrichtung gefördert. Dabei wird sie durch den Messbereich des Helix-Mikrowellenresonators 250 gefördert, der einen ringförmig-zylindrischen Resonatorraum 252 aufweist, in dessen Zentrum eine zentrale Säule 254 angeordnet ist, ähnlich einem offenen Koaxialresonator. Zusätzlich weist der Helix-Mikrowellenresonator 250 eine helixförmige Wendel 256 auf, die zu einer starken Erhöhung des Gütefaktors des Mikrowellenresonators führt. Der Resonatorraum 252 ist mit einer Schutzkappe 258 aus einem für Mikrowellen durchlässigen Material, vorzugsweise einem Kunststoff, abgedeckt, so dass der Resonatorraum 252 während des Betriebes nicht verschmutzt. Der Filterstopfen 52 befindet sich in der nächsten Annäherung zum Helix-Mikrowellenresonator 250. Fig. 6 shows a schematic cross-sectional view of a microwave measuring device 60 with the helical microwave resonator 250 in a sectional plane extending in the longitudinal direction through a cross-axially subsidized cigarette with tobacco rod 51 and projecting portion, a filter plug 52 with a capsule 55. This is conveyed transaxially through a passage 62 of the housing 260 of the measuring device. In this case, it is conveyed through the measuring range of the helical microwave resonator 250, which has an annular-cylindrical resonator space 252, in the center of which a central column 254 is arranged, similar to an open coaxial resonator. In addition, the helical microwave resonator 250 has a helical coil 256, which leads to a large increase in the quality factor of the microwave resonator. The resonator 252 is covered with a protective cap 258 of a microwave-permeable material, preferably a plastic, so that the resonator 252 does not pollute during operation. The filter plug 52 is in the closest approach to the helical microwave resonator 250.

Die dargestellte Konfiguration kann beispielsweise bei einer Mikrowellenfrequenz von 5,58 GHz betrieben werden.For example, the illustrated configuration may be operated at a microwave frequency of 5.58 GHz.

Eine weitere Mikrowellenmessvorrichtung 60 ist in Fig. 7 im Detail schematisch dargestellt. Die Mikrowellenmessvorrichtung 60 umfasst ein Resonatorgehäuse 432, das einen Mikrowellenresonator 434 umschließt. Der Mikrowellenresonator 434 ist ein Hohlraum, der von elektrisch leitenden Wänden des Resonatorgehäuses 432 umschlossen ist und in dem sich ein Mikrowellenmessfeld ausbilden kann. Zur Ein- und Auskoppelung des Mikrowellenmessfelds sind Antennen 436, 436' vorgesehen, die von der Seite her in den Mikrowellenresonator 434 hineinragen.Another microwave measuring device 60 is shown in FIG Fig. 7 shown schematically in detail. The microwave measuring device 60 comprises a resonator housing 432, which encloses a microwave resonator 434. The microwave resonator 434 is a cavity which is enclosed by electrically conductive walls of the resonator housing 432 and in which a microwave measuring field can form. For coupling and uncoupling of the microwave measuring field antennas 436, 436 'are provided, which protrude from the side into the microwave resonator 434.

In den Fig. 7a) und 7c) sind außerdem Teile eines Koordinatensystems mit einer x-Achse, einer y-Achse und einer z-Achse dargestellt. Die x-Achse verläuft in Richtung der Längserstreckung der stabförmigen Artikel 50 bzw. Zigaretten 50, die z-Richtung verläuft in Förderrichtung der stabförmigen Artikel 50, während die y-Richtung senkrecht dazu steht. In Fig. 7a) ist daher ein Schnitt in einer x-y-Ebene dieses Koordinatensystems dargestellt.In the Fig. 7a) and 7c ) also show parts of a coordinate system with an x-axis, a y-axis and a z-axis. The x-axis extends in the direction of the longitudinal extension of the rod-shaped articles 50 or cigarettes 50, the z-direction extends in the conveying direction of the rod-shaped articles 50, while the y-direction is perpendicular thereto. In Fig. 7a ), therefore, a section is shown in an xy plane of this coordinate system.

In der y-Richtung weist das Resonatorgehäuse 432 zentral eine seitliche Öffnung auf, die als Durchtrittskanal 62 für die Zigaretten 50 fungiert. Dieser Durchtrittskanal 62 erstreckt sich in z-Richtung, die in Fig. 7a) in die Zeichenebene hinein verläuft. Der Durchtrittskanal 62 ist von dem Innenraum des Mikrowellenresonators 434 durch ein nichtleitendes Fenster 442, das den Durchtrittskanal 62 an drei Seiten umschließt, getrennt, so dass kein Staub und keine Verunreinigung aus dem Durchtrittskanal 62 beispielsweise von den Zigaretten 50 in den Mikrowellenresonator 434 eindringen können.In the y-direction, the resonator housing 432 has centrally a lateral opening, which acts as a passageway 62 for the cigarettes 50. This passageway 62 extends in the z-direction, which in Fig. 7a ) into the drawing plane. The passageway 62 is separated from the interior of the microwave resonator 434 by a nonconductive window 442 enclosing the passageway 62 on three sides, so that no dust and contamination from the passageway 62 can penetrate from the cigarettes 50 into the microwave resonator 434, for example.

In Fig. 7b) unterhalb von Fig. 7a) ist der Verlauf eines typischen Mikrowellenresonanzfeldes in Abhängigkeit von der x-Richtung gezeigt. Das E-Feld 450, dessen elektrisches Feld Ez in z-Richtung orientiert ist, weist in dem dargestellten Ausführungsbeispiel dabei in x-Richtung zwei Wellenbäuche und einen mittigen Wellenknoten auf. In diesem Fall sind die beiden Antennen 436, 436' in x-Richtung an einer x-Position eines der beiden Wellenbäuche angeordnet, so dass eine ideale Ein- und Auskopplung des Mikrowellenmessfeldes durch die beiden Antennen 436, 436' erfolgt. Alternativ sind auch andere Einkopplungsorte sowie beispielsweise eine magnetische Einkopplung möglich. Der andere Wellenbauch befindet sich in x-Richtung an einer Soll-Position der Kapsel 55 im Filter 52 der Zigaretten 50. Kapseln, die im Bereich des Wellenbauches angeordnet sind, erzeugen daher ein großes Signal bezüglich der Veränderung des resonanten Mikrowellenmessfeldes, so dass deren Befüllung und Qualität sehr genau messbar sind.In Fig. 7b ) below Fig. 7a ) shows the course of a typical microwave resonance field as a function of the x-direction. The electric field 450, whose electric field E z is oriented in the z-direction, has in the illustrated exemplary embodiment in the x-direction two antinodes and a central wave node. In this case, the two antennas 436, 436 'are arranged in the x-direction at an x-position of one of the two antinodes, so that an ideal coupling and uncoupling of the microwave measuring field by the two antennas 436, 436' takes place. Alternatively, other Einkopplungsorte and, for example, a magnetic coupling are possible. The other shaft belly is located in the x-direction at a desired position of the capsule 55 in the filter 52 of the cigarettes 50. Capsules, which are in the region of the shaft belly Therefore, they generate a large signal with respect to the change of the resonant microwave measuring field, so that their filling and quality can be measured very accurately.

In einer alternativen Ausbildung könnte auch diese Position der Kapsel 55 an eine Stelle gesetzt sein, an der das Mikrowellenmessfeld einen Wellenknoten aufweist. In diesem Fall ergibt sich eine Änderung des Mikrowellenmessfeldes nur, falls die Kapsel 55 diese Sollposition nicht einnimmt und somit ein elektrisches Feld verspürt, das nicht gleich Null ist, also nicht die verschwindende Feldstärke des Wellenknotens aufweist. Dabei wird eine Differenz zu einer Signaländerung betrachtet, die von Filtermaterial ohnehin verursacht wird.In an alternative embodiment, this position of the capsule 55 could also be set to a position at which the microwave measuring field has a wave node. In this case, there is a change in the microwave measuring field only if the capsule 55 does not occupy this desired position and thus feels an electric field which is not equal to zero, that is does not have the vanishing field strength of the wave node. In this case, a difference to a signal change is considered, which is caused by filter material anyway.

Fig. 7c) zeigt einen Querschnitt durch die Mikrowellenmessvorrichtung 60 in einer y-z-Ebene. Es ist zu erkennen, dass der Mikrowellenresonator 434 im zentralen Bereich verjüngt ist. Die Durchschneidung des Mikrowellenresonators 434 durch den Durchtrittskanal 62 ist in dieser Ansicht gut erkennbar. Ebenfalls ist erkennbar, dass der Durchtrittskanal 62 entsprechend der Krümmung des Förderwegs der Zigaretten 50 auf einer Muldentrommel gekrümmt verläuft. Fig. 7c ) shows a cross section through the microwave measuring device 60 in a yz plane. It can be seen that the microwave resonator 434 is tapered in the central area. The intersection of the microwave resonator 434 through the passageway 62 is clearly visible in this view. It can also be seen that the passageway 62 extends in a curved manner in accordance with the curvature of the conveying path of the cigarettes 50 on a trough drum.

Im oberen Bereich ist zu erkennen, dass eine Antenne 436 durch einen nicht leitenden Abschnitt der Resonatorwand 440 hindurchgeführt ist und mit einer Elektronik 438 in Kontakt steht, die dafür in das Resonatorgehäuse eingelassen ist. Diese Elektronik 438 kann beispielsweise eine Sendeelektronik sein, die das Mikrowellenmessfeld erzeugt und durch die Antenne 436 in den Mikrowellenresonator 434 einkoppelt. Im unteren Bildbereich ist zu erkennen, dass in einer gleichartigen Konfiguration die Antenne 436' ebenfalls mit einer Elektronik 438' außerhalb des Mikrowellenresonators 434 verbunden ist. Hierbei kann es sich um eine Mess- und Auswerteelektronik 438' handeln, die Änderungen des Messfelds registriert und auswertet. Bei der Antenne 436' handelt es sich somit um eine Auskoppelantenne.In the upper area it can be seen that an antenna 436 is passed through a non-conductive portion of the resonator 440 and in contact with an electronics 438, which is recessed into the resonator housing. This electronics 438 may be, for example, a transmission electronics, which generates the microwave measuring field and coupled by the antenna 436 in the microwave resonator 434. In the lower part of the picture, it can be seen that in a similar configuration, the antenna 436 'is also provided with electronics 438' outside the microwave resonator 434 connected is. This may be a measuring and evaluation electronics 438 'which registers and evaluates changes in the measuring field. The antenna 436 'is thus a coupling-out antenna.

In Fig. 7d) ist dargestellt, wie das elektrische Feld 452 (Ez) sich in y-Richtung erstreckt. In dieser Richtung handelt es sich um die Null-Mode, die nur einen Wellenbauch aufweist und Schwingungsknoten an den äußeren Wänden. Auch in diesem Fall verläuft somit die Trajektorie der Kapseln 55 hinsichtlich ihrer Sollposition durch einen Wellenbauch des E-Felds.In Fig. 7d ) shows how the electric field 452 (E z ) extends in the y-direction. In this direction is the zero mode, which has only a wave belly and nodes on the outer walls. In this case as well, the trajectory of the capsules 55 thus runs with regard to their desired position through a wave bulge of the E field.

Wie den Fig. 7b) und 7d) zu entnehmen ist, handelt es sich somit bereits um eine Oberschwingung der Grundmode, da in x-Richtung zwei Wellenbäuche und in y-Richtung ein Wellenbauch vorhanden sind.Like that Fig. 7b) and 7d ), it is thus already a harmonic of the fundamental mode, since there are two antinodes in the x-direction and in the y-direction an antinode.

Auch in y-Richtung könnte das Mikrowellenmessfeld mit einer höheren Mode gewählt werden, so dass die Trajektorie der Kapsel 55 an ihrer Sollposition durch einen Schwingungsknoten verlaufen könnte, um eine Ortsauflösung für Abweichungen von der Sollposition zu erreichen.The microwave measuring field with a higher mode could also be selected in the y-direction so that the trajectory of the capsule 55 could run through a vibration node at its desired position in order to achieve a spatial resolution for deviations from the desired position.

In Fig. 8 sind in den Teilen a) bis c) verschiedene Details und Ansichten einer erfindungsgemäßen kapazitiven HF-Messvorrichtung 60 dargestellt. Fig. 8a) zeigt einen Querschnitt, der senkrecht durch die Fördertrajektorie 519 einer queraxial geförderten Zigarette 50 mit Filter 52 und Kapsel 55 mittig im Filter 52 verläuft. An dieser Stelle wird die Zigarette 50 mit ihrem überstehenden Abschnitt durch einen Durchtrittskanal 62 der kapazitiven HF-Messvorrichtung 60 gefördert. Die in Fig. 8a) oben gezeigte Wandfläche besteht aus einer elektrisch leitenden Elektrodenfläche 538, die mittels einer Isolierung 537 vom ebenfalls metallischen Grundkörper 536 der HF-Messvorrichtung 60 isoliert ist. Durch die Isolierung 537 verläuft eine Zuleitung 539, über die die Elektrodenfläche 538 mit einem harmonischen HF-Signal beaufschlagt ist.In Fig. 8 In the parts a) to c) various details and views of a capacitive RF measuring device 60 according to the invention are shown. Fig. 8a ) shows a cross-section which runs vertically through the conveying trajectory 519 of a cross-axially promoted cigarette 50 with filter 52 and capsule 55 in the center of the filter 52. At this point, the cigarette 50 is conveyed with its projecting portion through a passageway 62 of the capacitive RF measuring device 60. In the Fig. 8a wall surface shown above consists of an electrically conductive electrode surface 538, which is isolated by means of an insulation 537 from the likewise metallic base body 536 of the RF measuring device 60. Through the insulation 537 extends a feed line 539, via which the electrode surface 538 is acted upon by a harmonic RF signal.

Der in Fig. 8a) unterhalb der Zigarette 50 dargestellte Teil der kapazitiven HF-Messvorrichtung 60 umfasst als Unterseite des Durchtrittskanals 62 bzw. der gegenüberliegenden Seite den elektrisch leitenden Grundkörper 536, der auf einem Massepotenzial gehalten wird, sowie zwei Kondensatorelektroden 542, 542', die mittels einer Isolierung 543, 543' gegenüber dem Grundkörper 536 elektrisch isoliert sind und über Zuleitungen 544, 544' mit einer elektrischen Schaltung verbunden sind. Diese Kondensatorelektroden 542, 542' werden auf einer virtuellen Masse gehalten. Da sich das Potenzial zwischen der virtuellen Masse und der Masse, auf der der Grundkörper 536 liegt, nur um bis zu ca. 1 mV unterscheiden, stellt sich im gesamten Durchtrittskanal 62 zwischen der mit einem HF-Messsignal beaufschlagten Elektrode 538 und der gegenüberliegenden Fläche, die auf Masse bzw. virtueller Masse liegt, ein sehr homogenes HF-Messfeld aus.The in Fig. 8a ) underneath the cigarette 50 shown part of the capacitive RF measuring device 60 comprises as bottom of the passageway 62 and the opposite side of the electrically conductive base body 536 which is held at a ground potential, and two capacitor electrodes 542, 542 ', by means of an insulation 543 , 543 'are electrically insulated from the main body 536 and are connected to an electrical circuit via supply lines 544, 544'. These capacitor electrodes 542, 542 'are held on a virtual ground. Since the potential between the virtual ground and the ground on which the base body 536 lies differs only by up to approximately 1 mV, the entire passage 62 interposes between the electrode 538 loaded with an HF measuring signal and the opposing surface. which is at ground or virtual ground, a very homogeneous RF field of view.

In Fig. 8b ist die gleiche kapazitive HF-Messvorrichtung 60 im Ausschnitt in einem Schnitt dargestellt, die die Fördertrajektorie 519 der Zigarette 60 bzw. des Filters 52 mit der Kapsel 55 beinhaltet. Da diese in einer Mulde auf einer Muldentrommel im Ausführungsbeispiel gefördert wird, hat der Durchtrittskanal 62 in diesem Bereich eine ringabschnittförmige Ausgestaltung bzw. beschreibt eine Kurve, deren Krümmungsradius dem Radius der Muldentrommel entspricht.In Fig. 8b the same capacitive RF measuring device 60 is shown in section in a section which includes the delivery trajectory 519 of the cigarette 60 and the filter 52 with the capsule 55. Since this is conveyed in a trough on a trough drum in the exemplary embodiment, the passage channel 62 in this area has a ring-segment-shaped configuration or describes a curve whose radius of curvature corresponds to the radius of the trough drum.

Fig. 8c) zeigt eine Draufsicht auf die untere Fläche des Durchtrittskanals 62, also die auf Masse gehaltene Seite der kapazitiven HF-Messvorrichtung 60. Ein Großteil der Fläche dieser Elektrode besteht aus der Oberfläche des auf Massepotenzial gehaltenen Grundkörpers 536. Zentral entlang der Trajektorie 519 einer Kapsel 55 sind zwei Kondensatorelektroden 542, 542' angeordnet, die auf virtueller Masse gehalten werden. Die Kondensatorelektroden 542, 542' werden durch eine umfängliche Isolierung 543 von dem Grundkörper 536 isoliert. Die tatsächliche Potenzialdifferenz beträgt jedoch nur bis zu einem oder wenigen mV. Die Kondensatorelektroden 542, 542' sind links und rechts der Trajektorie 519 angeordnet, so dass eine Fehlpositionierung einer Kapsel durch eine Asymmetrie in den Messsignalen der Kondensatorelektroden 542, 542' erkennbar wird. Fig. 8c ) shows a plan view of the lower surface of the passageway 62, that is, the grounded side of the capacitive RF measuring device 60. Much of the area of this electrode consists of the surface of the grounded body 536 held at ground potential. Centrally along the trajectory 519 of a capsule 55 are two capacitor electrodes 542, 542 'which are held to virtual ground. The capacitor electrodes 542, 542 'are insulated from the main body 536 by a circumferential insulation 543. However, the actual potential difference is only up to one or a few mV. The capacitor electrodes 542, 542 'are arranged on the left and on the right of the trajectory 519, so that an incorrect positioning of a capsule can be recognized by an asymmetry in the measuring signals of the capacitor electrodes 542, 542'.

Alle genannten Merkmale, auch die den Zeichnungen allein zu entnehmenden sowie auch einzelne Merkmale, die in Kombination mit anderen Merkmalen offenbart sind, werden allein und in Kombination als erfindungswesentlich angesehen. Erfindungsgemäße Ausführungsformen können durch einzelne Merkmale oder eine Kombination mehrerer Merkmale erfüllt sein. Im Rahmen der Erfindung sind Merkmale, die mit "insbesondere" oder "vorzugsweise" gekennzeichnet sind, als fakultative Merkmale zu verstehen.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. In the context of the invention, features which are identified by "particular" or "preferably" are to be understood as optional features.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

1010
Belagapparatcovering apparatus
1111
BelagpapierstreifenCovering paper strip
1212
Schneidtrommelcutting drum
1313
Messerwalzeknife roll
2121
ZusammenstelltrommelAssembly drum
2222
Fördertrommelconveyor drum
2626
Rolltrommelrolling drum
2727
Rolleinrichtungrolling device
2828
Trommeldrum
2929
Trommeldrum
3030
Fördertrommelconveyor drum
3131
Schneidtrommelcutting drum
3232
Schneidmessercutting blade
3333
Spreiztrommelspreading drum
3434
Prüftrommeltesting drum
3535
Fördertrommelconveyor drum
3636
Trommelkörperdrum body
37.1, 37.237.1, 37.2
Ringkörperring body
38.1, 38.238.1, 38.2
Aufnahmemuldereceiving trough
4444
PrüforganReview body
4545
PrüforganReview body
50, 50.1, 50.250, 50.1, 50.2
Filterzigarettefilter cigarette
51, 51.1, 51.251, 51.1, 51.2
Tabakstocktobacco rod
52, 52.1, 52.252, 52.1, 52.2
Filterstopfenfilter plug
5555
Kapselcapsule
5656
Auswerteeinrichtungevaluation
60, 60.1, 60.260, 60.1, 60.2
MikrowellenmessvorrichtungMicrowave measuring device
62, 62.1, 62.262, 62.1, 62.2
DurchtrittskanalPassageway
6464
Wandungwall
6666
Wandungwall
6868
Abschlusswandend wall
7272
Gehäusecasing
7474
ReflexionsresonatorReflexionsresonator
8080
Mikrowelleneinkopplungmicrowave coupling
8484
Blendecover
100100
Förderwegconveying
121121
ReflexionsresonatorReflexionsresonator
124124
Resonatorhohlraumresonator cavity
134134
Hohlleiterresonatorwaveguide resonator
136, 136'136, 136 '
Teilraumsubspace
137137
Gabelfork
142142
Fensterwindow
250250
Helix-MikrowellenresonatorHelix microwave
252252
Resonatorraumresonator chamber
254254
Säulepillar
256256
Wendelspiral
258258
Schutzkappeprotective cap
260260
Gehäusecasing
325, 325', 325"325, 325 ', 325 "
ResonatorhohlraumabschnittResonatorhohlraumabschnitt
326, 327326, 327
Schutzblendeshield
330330
MikrowelleneinkopplungshohlraumMikrowelleneinkopplungshohlraum
332332
Reflexionsflächereflecting surface
336336
Antenneantenna
432432
Resonatorgehäuseresonator
434434
Mikrowellenresonatormicrowave
436, 436'436, 436 '
Antenneantenna
438, 438'438, 438 '
Elektronikelectronics
440440
Resonatorwandcavity wall
450450
E-FeldE-field
452452
elektrisches Feldelectric field
519519
FördertraktorieFördertraktorie
536536
Grundkörperbody
537537
Isolierunginsulation
538538
Elektrodenflächeelectrode area
539539
Zuleitungsupply
542, 542'542, 542 '
Kondensatorelektrodecapacitor electrode
543, 543'543, 543 '
Isolierunginsulation
544, 544'544, 544 '
Zuleitungsupply
MM
Trommelanordnung (Filterstopfen)Drum arrangement (filter plug)
TT
Trommelanordnung (Tabakstöcke)Drum arrangement (Tobacco sticks)
SS
Saugluftanschlusssuction air
PP
ZigarettenstrangmaschineCigarette-making machine

Claims (10)

  1. Drum arrangement of a machine of the tobacco-processing industry, in particular a drum arrangement of a filter attaching machine, for the transverse axial conveying of rod-shaped articles (50.1, 50.2) of the tobacco processing industry, in particular filter cigarettes, having a rotatable conveying drum (35) for the rod-shaped articles (50.1, 50.2), wherein, in circumferential direction, the conveying drum (35) has two adjacently arranged rows of successively arranged receiving troughs (38.1, 38.2), each of which is for one row of rod-shaped articles (50.1, 50.2), wherein the conveying drum (35) is set to convey the rod-shaped articles (50.1, 50.2), which are accommodated in the receiving troughs (38.1, 38.2) in two rows next to one another and in each case arranged transversely axially one behind one another, in transverse axial direction as said conveying drum (35) rotates, wherein in each case one, preferably stationary, measuring apparatus (60, 60.1, 60.2) having a through channel (62, 62.1, 62.2), which is open on one side, for sections of the rod-shaped articles (50.1, 50.2) is provided for each row of receiving troughs (38.1, 38.2) and, when passing through the one-sidedly open through channels (62, 62.1, 62.2) of the measuring apparatuses (60, 60.1, 60.2), the sections of the rod-shaped articles (50.1, 50.2) which are present in the through channel (62, 62.1, 62.2) and preferably protrude laterally from the respective receiving troughs (38.1, 38.2) can respectively be subjected to or in each case are subjected to electromagnetic waves of a measuring field of the measuring apparatus (60, 60.1, 60.2) in the through channel (62, 62.1, 62.2) of each measuring apparatus (60, 60.1, 60.2), wherein each measuring apparatus (60, 60.1, 60.2) for the two rows of rod-shaped articles (50.1, 50.2) in each case is set to subject sections of the rod-shaped articles (50.1, 50.2) to be tested to electromagnetic waves in the range from 300 MHz (300 x 106 Hz) to 30 EHz (30 x 1018 Hz) when they pass through the through channel (62, 62.1, 62.2) of each measuring apparatus (60, 60.1, 60.2), wherein the measuring apparatuses (60, 60.1, 60.2) for the sections of the rod-shaped articles (50.1, 50.2) of the two rows are disposed between the two rows of receiving troughs (38.1, 38.2) for the rod-shaped articles, and wherein the conveying drum (35) has an outer drum body, wherein the receiving troughs (38.1, 38.2) of the two rows are offset in radial direction to the outside with respect to the circumferential surface of the drum body of the conveying drum (35).
  2. Drum arrangement according to Claim 1, characterized in that each measuring apparatus (60, 60.1, 60.2) for the two rows of rod-shaped articles (50.1, 50.2) is set to subject sections of the rod-shaped articles (50.1, 50.2) to be tested to electromagnetic waves in the range from 1 GHz (1 x 109 Hz) to 20 GHz (20 x 109 Hz) or in the range from 10 MHz (10 x 106 Hz) to 300 MHz (300 x 106 Hz) or in the range from 300 GHz (300 x 109 Hz) to 300 THz (300 x 1012 Hz) when they pass through the through channel (62, 62.1, 62.2) of each measuring apparatus (60, 60.1, 60.2).
  3. Drum arrangement according to Claim 1 or 2, characterized in that, to allow the sections of the rod-shaped articles (50.1, 50.2) to pass through, the receiving troughs (38.1, 38.2) in the region of the through channels (62, 62.1, 62.2) of the measuring apparatuses (60, 60.1, 60.2) are formed opposite the respective through channel (62, 62.1, 62.2).
  4. Drum arrangement according to any one of Claims 1 to 3, characterized in that the receiving troughs (38.1, 38.2) of the two rows are configured in or on radially outward extending, in particular disc-shaped, ring bodies or in or on small radially outward extending arms.
  5. Drum arrangement according to any one of Claims 1 to 4, characterized in that the length of the receiving troughs (38.1, 38.2) of the two rows for the rod-shaped articles (50.1, 50.2) is respectively between 15 mm and 40 mm, in particular between 15 mm and 35 mm, or that the width of the ring bodies or the width of the small arms for the rod-shaped articles (50.1, 50.2) is respectively between 15 mm and 40 mm, in particular between 15 mm and 35 mm.
  6. Drum arrangement according to any one of Claims 1 to 5, characterized in that the receiving troughs (38.1, 38.2) for the rod-shaped articles (50.1, 50.2) in each case have lateral supporting bodies for the articles (50.1, 50.2) to be tested in the through channels (62, 62.1, 62.2), wherein the supporting bodies are made of a non-metallic material, in particular plastic and, upon rotation of the conveying drum (35), the supporting bodies can be brought into the through channels (62, 62.1, 62.2) of the measuring apparatuses (60, 60.1, 60.2) together with the sections of the rod-shaped articles (50.1, 50.2) to be tested and pass through said through channels.
  7. Machine of the tobacco processing industry, in particular a filter attaching machine, for turning rod-shaped articles (50.1, 50.2), in particular filter cigarettes, having a drum arrangement according to any one of Claims 1 to 6.
  8. Method for checking transversely axially conveyed rod-shaped articles (50.1, 50.2) of the tobacco processing industry, in particular for checking liquid-filled capsules in filter sections of filter cigarettes, using a drum arrangement according to any one of Claims 1 to 6, wherein the rod-shaped articles (50.1, 50.2) are accommodated in two rows next to one another and in each row in each case transversely axially one behind the other in each case in a row of receiving troughs (38.1, 38.2) of a conveying drum (35) and are conveyed in transverse axial direction, wherein in each case one, preferably stationary, measuring apparatus (60, 60.1, 60.2) having a one-sidedly open through channel (62, 62.1, 62.2) for sections of the rod-shaped articles (50.1, 50.2) is provided for each row of receiving troughs (38.1, 38.2), wherein, on their conveying path during the transverse axial conveyance of the rod-shaped articles (50.1, 50.2), sections of the rod-shaped articles (50.1, 50.2) in each case pass through the one-sidedly open through channel (62, 62.1, 62.2) of one respective measuring apparatus (60, 60.1, 60.2) for the sections of the rod-shaped articles and, during their conveyance through the through channel (62, 62.1, 62.2), the sections of the rod-shaped articles (50.1, 50.2) of each row in each case pass through a measuring field of the respective measuring apparatus (60, 60.1, 60.2) which has electromagnetic waves, wherein the sections of the rod-shaped articles (50.1, 50.2) to be tested in each case are subjected to electromagnetic waves in the range from 300 MHz (300 x 106 Hz) to 30 EHz (30 x 1018 Hz) when they pass through the through channel (62, 62.1, 62.2) of each measuring apparatus (60, 60.1, 60.2), wherein the rod-shaped articles (50.1, 50.2) of the two rows are arranged on the conveying drum (35) in such a way that the sections of the rod-shaped articles (50.1, 50.2) of the two rows, which are to be tested and are provided for the measuring apparatuses (60, 60.1, 60.2), face one another and wherein the measuring apparatuses (60, 60.1, 60.2) for the sections of the rod-shaped articles (50.1, 50.2) of the two rows are arranged between the two conveyed rows of rod-shaped articles (50.1, 50.2).
  9. Method according to Claim 8, characterized in that the rod-shaped articles (50.1, 50.2) in the receiving troughs (38.1, 38.2) of each row, each of which has sections, in particular filter sections, that protrude laterally from the receiving troughs (38.1, 38.2), are arranged in a conveying region, and/or that the rod-shaped articles (50.1, 50.2) of the two rows are conveyed in the receiving troughs (38.1, 38.2) of the conveying drum (35) in pairs and spaced apart from one another in longitudinal axial direction.
  10. Method according to Claim 8 or 9, characterized in that sections of the rod-shaped articles (50.1, 50.2) to be tested are respectively subjected to electromagnetic waves in the range from 1 GHz (1 x 109 Hz) to 20 GHz (20 x 109 Hz) or in the range from 10 MHz (10 x 106 Hz) to 300 MHz (300 x 106 Hz) or in the range from 300 GHz (300 x 109 Hz) to 300 THz (300 x 1012 Hz) when they pass through the through channel (62, 62.1, 62.2) of each measuring apparatus (60, 60.1, 60.2).
EP15174753.2A 2014-07-08 2015-07-01 Inspection of rod-shaped articles, in particular filter cigarettes Active EP2965640B1 (en)

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Application Number Priority Date Filing Date Title
PL15174753T PL2965640T3 (en) 2014-07-08 2015-07-01 Inspection of rod-shaped articles, in particular filter cigarettes

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Application Number Priority Date Filing Date Title
DE102014213244.4A DE102014213244A1 (en) 2014-07-08 2014-07-08 Testing of rod-shaped articles, in particular filter cigarettes

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EP2965640A1 EP2965640A1 (en) 2016-01-13
EP2965640B1 true EP2965640B1 (en) 2018-12-05

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PL2965640T3 (en) 2019-05-31
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CN105249529B (en) 2019-07-26
EP2965640A1 (en) 2016-01-13

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