EP3085253B2 - Strangmaschine der tabak verarbeitenden industrie und verfahren zum herstellen von multisegmentstäben - Google Patents

Strangmaschine der tabak verarbeitenden industrie und verfahren zum herstellen von multisegmentstäben Download PDF

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Publication number
EP3085253B2
EP3085253B2 EP16162770.8A EP16162770A EP3085253B2 EP 3085253 B2 EP3085253 B2 EP 3085253B2 EP 16162770 A EP16162770 A EP 16162770A EP 3085253 B2 EP3085253 B2 EP 3085253B2
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EP
European Patent Office
Prior art keywords
segments
light guide
light
wrapping strip
measuring device
Prior art date
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Active
Application number
EP16162770.8A
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German (de)
English (en)
French (fr)
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EP3085253A1 (de
EP3085253B1 (de
Inventor
Dirk Sacher
Ilmar Jonat
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
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Koerber Technologies GmbH
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Application filed by Koerber Technologies GmbH filed Critical Koerber Technologies GmbH
Priority to PL16162770.8T priority Critical patent/PL3085253T5/pl
Publication of EP3085253A1 publication Critical patent/EP3085253A1/de
Application granted granted Critical
Publication of EP3085253B1 publication Critical patent/EP3085253B1/de
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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/02—Manufacture of tobacco smoke filters
    • A24D3/0295—Process control means
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/02—Manufacture of tobacco smoke filters
    • A24D3/0229—Filter rod forming processes
    • A24D3/0233—Filter rod forming processes by means of a garniture
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/02—Manufacture of tobacco smoke filters
    • A24D3/0275—Manufacture of tobacco smoke filters for filters with special features
    • A24D3/0287—Manufacture of tobacco smoke filters for filters with special features for composite filters

Definitions

  • the present invention relates to a rod-making machine for the tobacco processing industry for producing multi-segment rods, comprising an endless, driven format belt for conveying a wrapping strip placed on the format belt and a series of segments placed on the wrapping strip, an enclosing device for enclosing the segments with the wrapping strip, and an optical measuring device for detecting a property of the multi-segment rod formed from the segments and the wrapping strip.
  • the present invention further relates to a method for producing multi-segment rods in the tobacco processing industry.
  • a rod making machine in the tobacco processing industry for producing multi-segment rods with an endless format belt and an enclosing device has been known for a long time, see for example DE 27 36 871 A1 .
  • the object of the invention is to provide a strand machine and a method in which reliable optical detection of the segments is possible regardless of the nature of the wrapping material.
  • the invention solves this problem with the features of the independent claims.
  • the light exit is formed by at least one optical fiber.
  • optical fibers for example, based on fiber optics, optical detection can be advantageously implemented with minimal installation space.
  • the compact design allows for a measuring distance and angle of incidence that enable reliable measurement without the need for additional optical elements.
  • the at least one light exit is preferably arranged in direct measuring relationship with the surface to be measured.
  • direct measuring relationship means that the light exiting the light exit falls directly onto the object to be examined (segment or cladding strip), without any optical elements such as lenses, filters, or the like arranged in the beam path.
  • the measuring device is configured to perform at least one point and/or rectangular reflection measurement.
  • Optical reflection measurements can be performed with comparatively little effort compared to optical transmission measurements, which, depending on the material being examined, do not always function reliably.
  • a point measurement means that only the light intensity reflected by a point or light spot is determined, rather than the laborious capture and evaluation of a two-dimensional image consisting of a large number of pixels, for example, using a camera.
  • the measuring device comprises a first light exit arranged in a measuring relationship with the segment string.
  • the measuring device comprises a second light exit arranged in a measuring relationship with the wrapping strip.
  • the light exits are arranged at an angle in the range between 0° and 180°, more preferably between 50° and 110°, to each other. This advantageously enables reliable detection of both the segments and markings or print marks on the wrapping paper with sufficiently steep light incidence angles.
  • each light exit is generated by an associated transmitting optical fiber, whereby, in particular, each transmitting optical fiber can be associated with a corresponding receiving optical fiber.
  • the at least one optical fiber is advantageously held in a fiber optic head.
  • the transmitting optical fiber and the corresponding receiving optical fiber are preferably arranged in a common exit opening of the fiber optic head.
  • the fiber optic head is attached to a hold-down device for holding down the segments. Since the hold-down device is in a fixed spatial relationship to the segments, this easily ensures that the fiber optic head is also in a fixed spatial relationship to the multi-segment strand. This is advantageous for reliable and accurate optical measurement.
  • the fiber optic head can be attached to the hold-down device directly or indirectly, for example, via a support element.
  • the fiber optic head is guided through an opening in the hold-down device, which can be particularly space-saving.
  • the fiber optic head which is, for example, tubular or pin-shaped, is preferably arranged at an angle in the range between 0° and 90°, more preferably between 30° and 60°, to the horizontal. This advantageously enables detection of both the segments and the wrapping strip using a simply constructed fiber optic head.
  • the invention is applicable to all rod-making machines in the tobacco processing industry for producing multi-segment rods.
  • An advantageous application relates to a rod-making machine for producing multi-segment filter rods.
  • the invention can be used, in particular, for quality assurance with regard to defined segment lengths and/or for possible cutting position monitoring or control.
  • Relative position detection can be advantageously implemented using a corresponding fiber optic arrangement, for example, with contrast or color sensors.
  • the stranding machine 10 is part of a machine for producing multi-segment filter rods 48, each consisting of a plurality of optically distinguishable filter rod segments 17.
  • groups of filter segments 17 are assembled and, by means of an insertion device 33, continuously placed longitudinally axially onto a wrapping strip 39 drawn from a reel 37 and provided with glue by means of a gluing device 38.
  • an initially open multi-segment filter strand 41 is formed from the filter segment groups arranged longitudinally axially.
  • Optically detectable markings or printed marks 30 can be arranged on the inside of the wrapping strip 39.
  • the wrapping strip 39 can, in particular, be a wrapping paper strip.
  • the wrapping strip 39 and the multi-segment filter strand 41 rest on a strand conveyor in the form of an endless format belt 42 driven by a drive 40.
  • the format belt 42 guides the components 39, 41 through a format 45 or an enclosing device 43, which wraps the wrapping strip 39 completely around the filter strand 41, seals it by gluing, and thus forms an endless, closed multi-segment filter strand 44.
  • This can pass through a seaming plate 46, in which the glued seam is dried by heat input or cooling.
  • Individual multi-segment filter rods 48 are then continuously cut from the multi-segment filter strand 44 by a cutting device 47. and transferred to a downstream discharge conveyor.
  • the strand machine 10 is shown in a cross-section in the area between the insertion device 33 and the enclosing device 43, in which the filter strand 41 is not yet enclosed by the wrapping paper.
  • the format 45 has a longitudinal axial recess 49 for receiving and guiding the filter strand 41.
  • the format belt 45 is placed on the format 45 in a U-shaped cross-section.
  • the wrapping strip 39 is placed on the format belt 45 in a U-shaped cross-section, with the legs 39a of the wrapping strip 39 projecting upwards over the filter strand 41.
  • a longitudinally axially extending hold-down device 20 is provided, which is inserted into the Figures 2 and 4 is shown.
  • the hold-down device 20, which is, for example, plate- or strip-shaped, is arranged on the format 45 or in the recess 49 of the format 45 to hold down the segments 17 forming the filter strand 41.
  • the hold-down device 20 can be pivotable about a horizontal axis in order to make the format 45 accessible in the event of a malfunction.
  • a light guide head 21 is provided, which is part of an optical measuring device 19 (see Figure 4 ) for detecting the segments 17 in the filter strand 41 and/or for detecting markings or print marks 30 on the inside of the wrapping paper 39.
  • the light guide head 21 is advantageously attached to the hold-down device 20, so that due to the fixed spatial relationship between the filter strand 41 and the hold-down device 20, there is also a fixed spatial relationship between the light guide head 21 and the filter strand 41.
  • a holder 15 attached to the hold-down device 20 and extending perpendicularly thereto can be provided.
  • the light guide head 21 is guided at an angle advantageously in the range between 0° and 90°, more preferably between 30° and 60°, even more preferably between 40° and 50°, through an opening 16 in the hold-down device 20 (see Figures 4, 5 ), which allows for a particularly space-saving arrangement.
  • the light guide head 21 comprises a housing 22, for example, in the shape of a pin or tube, in which light guides 25, 31, 37, 50, which will be explained later, are arranged.
  • the pin shape results in an optimally small design and high stability and protection for the light guides 25, 31, 37, 50.
  • the hold-down device 20, including the light guide head 21 and the flexible light guides 25, 31, 37, 50 can be folded to the side.
  • the light guide head 21 comprises a first light exit 23 (see Figures 3 and 5 ), through which a first light beam or light cone 24 directed onto the jacket side of the filter strand 41 emerges.
  • the first light beam 24 is preferably directed vertically, or substantially vertically in the range of +- 20°, downwards and arranged such that it preferably strikes the center of the segments 17 of the filter strand 41.
  • a first transmitting light guide 25 is provided (see Figure 4 ), which extends from the first light exit 23 inside the housing 22 and is connected, for example, via a cable 26 to a remotely arranged light source 27.
  • the light source 27 can be any suitable source of visible light, an infrared source and/or UV source.
  • the first light exit 23 is formed by an end face of the first transmitting light guide 25, which is inclined at a suitable angle to the measuring head axis, preferably in the range between 30° and 60°, more preferably in the range between 35° and 55°, and even more preferably in the range between 40° and 50°.
  • the light exiting the first light exit 23 of the first transmitting light guide 25 falls directly and immediately, i.e., without intervening optical elements such as lenses, filters, etc., onto the surface to be examined—here, the lateral surface of the filter strand 41 or the segments 17.
  • the housing 22 has a transparent exit window that closes the first light exit opening 29.
  • the light reflected from the surface to be examined falls on a first light inlet 28, which can be arranged adjacent to the first light outlet 23. This thus involves a point-shaped and/or rectangular reflection measurement.
  • the first light outlet 23 and the first light inlet 28 are advantageously arranged together in one and the same outlet opening 29 of the measuring head 21 or the measuring head housing 22.
  • a first receiving optical fiber 31 is assigned to the first light inlet 28, with which the reflected light entering the measuring head 21 through the first light inlet 28 is guided to an optical sensor 32 arranged remotely, in particular in the region of the light source 27, in order to generate an electrical signal dependent on the intensity of the reflected light.
  • the optical sensor 32 is expediently matched to the measuring wavelength of the light source 27. It can preferably be a contrast or color sensor. A luminescence or infrared sensor can also be used depending on the requirements. In principle, all sensor principles that are physically connected to optical fibers or are based on other The sensor 32 can be conveniently installed at a suitable location due to the variable length of the optical fibers 25, 31, 37, and 50.
  • the light guide head 21 For detecting markings or print marks 30 on the inside of the wrapping strip 39, the light guide head 21 comprises a second light outlet 35 (see Figures 3 and 5 ), through which a second light beam or light cone 36 directed towards the inside of the wrapping strip 39 emerges.
  • the second light beam 36 is preferably directed approximately horizontally in the range of +- 20° laterally and is arranged such that it preferably strikes the wrapping strip 39 approximately perpendicularly.
  • a second transmitting light guide 37 is provided (see Figure 4 ), which extends from the second light exit 35 inside the housing 22 and is connected, for example, via the cable 26 to the light source 27 (or a suitable further light source).
  • the second light exit 35 is formed by an end face of the second transmitting optical fiber 37, which is inclined at a suitable angle relative to the measuring head axis, preferably in the range between 30° and 60°, more preferably in the range between 35° and 55°, and even more preferably in the range between 40° and 50°.
  • the light exits 23, 35 or the light beams 24, 26 form an angle in the range between 50° and 110°, preferably between 60° and 100°, and even more preferably between 70° and 90°.
  • the light emerging from the second light exit 35 of the second transmitting light guide 37 falls directly and immediately, i.e., without intervening optical elements such as lenses, filters, etc., onto the surface to be examined, here the inside of the enveloping strip 39.
  • the housing 22 has a transparent exit window that closes the second light exit opening 13.
  • the second light exit 35 is advantageously arranged below the upper edge of the enveloping strip 39, which allows for a spatially optimal measurement arrangement.
  • the light reflected from the surface to be examined falls on a second light inlet 11, which can be arranged adjacent to the second light outlet 35. This also involves a point-shaped and/or rectangular reflection measurement.
  • the second light outlet 35 and the second light inlet 11 are advantageously arranged together in one and the same outlet opening 13 of the fiber optic head 21 or the housing 22.
  • a second receiving optical fiber 50 is assigned to the second light inlet 11, with which the reflected light entering the optical fiber head 21 through the second light inlet 11 is guided to the optical sensor 32 (or a suitable further sensor) in order to generate a preferably electrical signal dependent on the intensity of the reflected light.
  • the electrical signals are converted into a digital signal and transmitted to an electronic data processing device 34.
  • the signals are evaluated in the data processing device 34 in order to determine the relative position and/or length of the individual segments 17, and/or a position and/or width detection of an internal mark 30 on the wrapping strip 39, as actual values for downstream monitoring and synchronization tasks.
  • the evaluation can be carried out, for example, by determining one or more rising or falling signal edges.
  • process-related material processing such as cutting position control of the cutting device 47, detection of the object or segment length, and position control, can then be carried out in a controlled and automatic manner and online during the manufacturing process.
  • an (error) signal can be generated if the relative assignment of a segment 17 to an inner marking 30 on the wrapping strip 39 exceeds or falls below predetermined limits.
  • the error signal can advantageously be used to eject defective articles, issue a warning to an operator, and/or stop the machine.
  • the light outlets 23, 35 are preferably flush with the exit surface of the light guide head 21.
  • the cone angle of the beam cone of the light cones 24, 36 is preferably small, in particular less than 70° or 68°, preferably less than 45°, more preferably less than 30°, and preferably 22°.
  • the shape of the light outlets 23, 35 can vary and be, for example, round or square.
  • the light outlets 23, 35 are preferably smoothly polished and can therefore be easily cleaned, for example, in the event of glue deposits, etc.
  • the optical measuring device 19 comprises the light source 27, the fiber optic head 21, the fiber optics 25, 31, 37, 50 and the optical sensor 32.
  • the fiber optic technology used makes it possible to realize any geometric holders and guides with one or more optical detection points as an online measuring device 19.
  • a plurality of fiber optic heads may also be provided.
  • one fiber optic head may be provided for each pair of transmit-receive fiber optics.
  • a separate fiber optic head for each fiber optic is also possible.

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  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
EP16162770.8A 2015-04-24 2016-03-30 Strangmaschine der tabak verarbeitenden industrie und verfahren zum herstellen von multisegmentstäben Active EP3085253B2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL16162770.8T PL3085253T5 (pl) 2015-04-24 2016-03-30 Maszyna do wytwarzania kabli przemysłu przetwórstwa tytoniu i sposób wytwarzania sztabek wielosegmentowych

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015106347.6A DE102015106347A1 (de) 2015-04-24 2015-04-24 Strangmaschine der Tabak verarbeitenden Industrie und Verfahren zum Herstellen von Multisegmentstäben

Publications (3)

Publication Number Publication Date
EP3085253A1 EP3085253A1 (de) 2016-10-26
EP3085253B1 EP3085253B1 (de) 2018-05-02
EP3085253B2 true EP3085253B2 (de) 2025-06-25

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EP (1) EP3085253B2 (pl)
CN (1) CN106063586B (pl)
DE (1) DE102015106347A1 (pl)
PL (1) PL3085253T5 (pl)

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Publication number Priority date Publication date Assignee Title
PL3709826T3 (pl) * 2017-11-14 2022-04-11 G.D Società per Azioni Jednostka i sposób kontroli grupy części artykułów przemysłu tytoniowego
CN114747800A (zh) * 2022-02-28 2022-07-15 浙江中烟工业有限责任公司 醋酸纤维丝束拼接段检测方法及装置

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Also Published As

Publication number Publication date
PL3085253T3 (pl) 2018-10-31
CN106063586B (zh) 2020-08-07
DE102015106347A1 (de) 2016-10-27
CN106063586A (zh) 2016-11-02
EP3085253A1 (de) 2016-10-26
EP3085253B1 (de) 2018-05-02
PL3085253T5 (pl) 2025-09-08

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