EP2727481A2 - Verfahren zur Erfassung der Lage eines vorbedruckten Materialstreifens in einer Maschine der Tabak verarbeitenden Industrie, und Maschine der Tabak verarbeitenden Industrie - Google Patents

Verfahren zur Erfassung der Lage eines vorbedruckten Materialstreifens in einer Maschine der Tabak verarbeitenden Industrie, und Maschine der Tabak verarbeitenden Industrie Download PDF

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Publication number
EP2727481A2
EP2727481A2 EP13190814.7A EP13190814A EP2727481A2 EP 2727481 A2 EP2727481 A2 EP 2727481A2 EP 13190814 A EP13190814 A EP 13190814A EP 2727481 A2 EP2727481 A2 EP 2727481A2
Authority
EP
European Patent Office
Prior art keywords
machine
strip
pattern
sensor arrangement
material strip
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.)
Granted
Application number
EP13190814.7A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2727481B1 (de
EP2727481A3 (de
Inventor
Dirk Sacher
Peter Kalus
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
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hauni Maschinenbau GmbH filed Critical Hauni Maschinenbau GmbH
Priority to PL13190814T priority Critical patent/PL2727481T3/pl
Publication of EP2727481A2 publication Critical patent/EP2727481A2/de
Publication of EP2727481A3 publication Critical patent/EP2727481A3/de
Application granted granted Critical
Publication of EP2727481B1 publication Critical patent/EP2727481B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/47—Attaching filters or mouthpieces to cigars or cigarettes, e.g. inserting filters into cigarettes or their mouthpieces
    • A24C5/471—Attaching filters or mouthpieces to cigars or cigarettes, e.g. inserting filters into cigarettes or their mouthpieces by means of a connecting band
    • A24C5/473—Cutting the connecting band
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/005—Treatment of cigarette paper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/046—Sensing longitudinal register of web
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/04—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with transverse cutters or perforators
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/32—Separating, ordering, counting or examining cigarettes; Regulating the feeding of tobacco according to rod or cigarette condition
    • A24C5/34—Examining cigarettes or the rod, e.g. for regulating the feeding of tobacco; Removing defective cigarettes
    • A24C5/3412—Examining cigarettes or the rod, e.g. for regulating the feeding of tobacco; Removing defective cigarettes by means of light, radiation or electrostatic fields
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/40—Identification
    • B65H2511/413—Identification of image
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2553/00—Sensing or detecting means
    • B65H2553/40—Sensing or detecting means using optical, e.g. photographic, elements
    • B65H2553/42—Cameras
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/54—Cigarette making

Definitions

  • the invention relates to a method for detecting the position of a pre-printed strip of material in a machine of the tobacco-processing industry, wherein a periodically recurring print pattern on an endlessly processed strip of material is detected and detected by means of an imaging sensor array and from the position of the strip of material is determined relative to the machine cycle.
  • the invention further relates to a correspondingly established machine of the tobacco-processing industry.
  • the DE 102 41 127 A1 discloses a method of monitoring at least one mark on a cigarette or wrapping paper strip, wherein to increase the contrast of the Be environment of the marking outgoing light rays by means of an optical unit, such as a diaphragm, at least partially filtered away or faded out.
  • the optical unit must be adapted for this purpose to the shape of the mark on the wrapping paper strip. For example, in the case of an aperture, the aperture has the same shape as the marker.
  • the marking on the cigarette or the wrapping paper strip is thus determined by the manufacturer, a desired flexibility in the form of the marking is not feasible.
  • the object of the invention is to provide a method for detecting the position of a pre-printed strip of material in a machine of the tobacco processing industry and a correspondingly equipped machine, which circumvent the disadvantages associated with conventional printing marks.
  • the invention solves this problem with the features of the independent claims.
  • the invention utilizes a suitable periodically recurring print pattern in an area of the strip of material visible to the outside of the finished product as the print pattern to be recognized.
  • This can be any freely definable pattern which can be provided in particular for advertising purposes. Additional unsightly print marks predefined by the machine manufacturer are no longer required, as a result of which the printable area of the material strip is no longer correspondingly restricted. Also, the strip of material is no longer subject to corresponding restrictions, since no consumer disturbing predefined print mark must be covered more. A corresponding material overlap can be omitted, resulting in a significant material savings.
  • the print pattern to be recognized is freely definable within certain limits. These limits are set in particular by the fact that the printing pattern to be recognized must have a sufficient contrast and a repetition period corresponding to the product cycle.
  • the print pattern to be recognized also differs from the print mark in that, in addition to the print mark function, it performs another function, in particular an advertising function.
  • the print pattern to be recognized is redefined after a format change in the sensor arrangement.
  • a print pattern adapted to the new format is redefined. It is thus a not customizable by the machine manufacturer, variably customizable print pattern, which can be defined in particular format dependent.
  • the determination or definition of the printing pattern to be detected is preferably carried out automatically or semi-automatically in an electronic learning step using the sensor arrangement. This can be done, for example, in a test run before the actual production operation, or at the beginning of the production operation.
  • the sensor arrangement preferably has a learning module which is set up to automatically teach in a suitable periodically recurring pattern on the material strip as the print pattern to be recognized.
  • the learning module may include, for example, a neural network or another algorithmized learning method.
  • the learning module can be realized by means of software in an electronic data processing device.
  • the data processing device may be provided in the sensor arrangement or be part of the machine control.
  • an external sensor arrangement for example in a laboratory device, can also be used.
  • the print pattern to be recognized is preferably stored in the sensor arrangement.
  • the print pattern to be recognized is newly defined or stored in the sensor arrangement
  • teaching can be done by trial run of the machine and automatic or manual selection of a suitable print pattern.
  • a database may be provided in which previously learned suitable print patterns have been stored. After a format change, a suitable print pattern assigned to the new format is then selected from the database and set or stored in the sensor arrangement as the print pattern to be recognized.
  • the database can be stored in an external data processing device, in the machine control or in the sensor arrangement.
  • the machine can preferably be controlled and / or regulated.
  • a cutting device of the machine for positionally accurate positioning of a cutting line of the material strip is controlled.
  • the cutting line can then be repeatably and accurately positioned at a desired location. If desired or appropriate specification, it is ensured that the cutting line does not run through the printed area and has a sufficient distance therefrom; and / or that the imprint on the rod-shaped end product is always positioned in exactly the same place.
  • Other applications of the position signal provided according to the invention are possible.
  • the sensor arrangement preferably comprises a camera system and can be implemented particularly advantageously with a line scan camera. An area camera is not excluded. Furthermore, the sensor arrangement advantageously has a lighting device in order to facilitate the high-contrast detection of the printing pattern.
  • the invention is applicable to any machine of the tobacco processing industry in which a printable or printed strip of material, in particular a paper strip, is processed endlessly.
  • Preferred applications relate to, for example, filter piecing, string unit of a cigarette making machine or Bobinenlader.
  • Fig. 1 shows a machine 10 of the tobacco processing industry, in which a printable or printed strip of material 11, such as a paper strip, is processed endlessly.
  • the machine 10 comprises a sensor arrangement 14 with an optical camera 15, which is used to image the printed side of the material strip 11 is arranged in the machine 10.
  • the camera 15 is preferably a line camera, but also an area camera is possible.
  • the line camera 15 preferably extends over the entire width of the material strip 11, as in FIG Fig. 2 is shown. It may be sufficient if camera 15 extends over only a part of the width of the material strip 11.
  • the printed side of the strip of material 11 would be in the example of Fig. 1 directed upward, ie facing the sensor assembly 14.
  • the machine 10 further includes a machine controller 16 and a cutter 17 for cutting the strip of material 11 along periodically repeating cut lines 14, see Fig. 2 , Furthermore, a preferably touch-sensitive screen terminal 23 is expediently provided for the operation of the machine 10.
  • a tipping paper strip 11 printed with an advertising motif 13, here an elephant is shown, for example, being processed in a filter tappet 10.
  • the tipping paper 11, which is processed here twice as wide, has areas 12 assigned to each cigarette, the advertising motif 13 repeating itself identically in each area 12.
  • the advertising motif 13 thus repeats in the conveying direction continuously periodically or equidistantly.
  • the conveying direction of the material strip 11 is in Fig. 2 marked by an arrow as an example.
  • the regions 12 are separated by cutting lines 14 perpendicular to the conveying direction and cutting lines 35 along the conveying direction.
  • the continuous strip of material 11 is cut in the machine 10 by means of the cutting device 17 along the cutting lines 14 in double-width tipping paper sections.
  • the advertising motif 13 is arranged in a region of the tipping paper which is visible to the consumer after the cigarette has been completed, in particular in a central region of the corresponding region 12 of the tipping paper. Visible to the outside in particular means that the advertising motif 13 is uncovered after the completion of the cigarette, ie not covered by a layer of paper.
  • the cutting device 17 is controlled by the machine control 16 continuously accurate clock, so that it is ensured that the cutting lines 14 are exactly to the intended target positions between the advertising motifs, and not in the worst case, the advertising motif is cut.
  • the exact position of the strip of material 11 in the machine 10 is continuously determined by means of the sensor arrangement 14.
  • the sensor arrangement 14 comprises an electronic data processing device 18 based on, for example, a microprocessor or microcontroller and an electronic memory 19.
  • the memory 19 stores the image of a print pattern (desired pattern) to be recognized on the material strip 11.
  • the data processing device 18 contains image recognition software in order to recognize the print pattern stored in the memory in the image data transmitted by the camera system 15 and to determine therefrom the position of the print pattern and thus the position of the material strip 11 in the machine 10.
  • the image recognition software compares the image data taken with the camera system 15 with the target print pattern stored in the memory 19. The determined position of the strip of material 11 is sent to the machine control 16, which controls the cutting device 17 exactly on this basis or regulates.
  • the measurement resolution of the sensor arrangement 14 is preferably predetermined by means of an external clock generator.
  • the clock may, for example, be a separate rotary encoder 25.
  • the clock can be generated for example by a controlled rotary drive of the machine 10, wherein the position reference is given by the time-distance reference.
  • the sensor arrangement 14 preferably comprises a lighting device 24, preferably a white-light source, for illuminating the material strip 11 in the area covered by the sensor arrangement 14.
  • a lighting device 24 preferably a white-light source
  • no additional print mark for example a plain-colored rectangle, specified by the manufacturer, is used as the print pattern to be recognized, but a suitable, sufficiently high-contrast part of the advertising motif 13 which is present in any case Fig. 2 For example, the trunk, the prone leg or the entire elephant act.
  • An additional print mark is thus no longer necessary, and the largest part of the area 12 is available for the advertising print.
  • the sensor arrangement 14 does not have to be adapted to the printing pattern to be recognized.
  • the print pattern to be recognized is, in particular, a pattern that is visible to the consumer on the end product.
  • the print pattern to be recognized is newly defined in the sensor arrangement 14 and stored in the memory.
  • the data processing device 18 preferably comprises a learning module or a learning software which can be used to automatically determine a suitable one to be recognized (Target) print pattern is set based on the signal transmitted from the camera system 15.
  • a test run of the machine 10 is preferably carried out.
  • a semi-automatic or manual implementation of learning is possible. In semiautomatic training, for example, a plurality of possible print patterns could be displayed to the operator on the display terminal, with the operator selecting a print pattern.
  • the operator leads approximately a format length in the conveying direction through the measuring range detected by the camera system.
  • An image of the material strip 11 with the taught-in printing pattern can be displayed on the display terminal 23 to facilitate the sensor adjustment, the representation of the switching point and any change in position of the switching point in the conveying direction for the operator. In this way, the operator can easily adjust the cutting position of the cuts 14 via the display terminal 23.
  • a visualization of the quality of the pressure pattern to be detected and the reading out of diagnostic data, such as detection reliability, is easily possible by means of the screen terminal 23.
  • the learning software used is based, for example, on a neural network or another algorithmized learning method.
  • the learning method preferably comprises a plausibility check in such a way that the repetition rate of the taught-in pattern corresponds to the format clock.
  • the learning method may include a filter that allows from the outset only teaching a pattern with a repetition rate corresponding to the format clock. More general is the repetition rate of the format when learning the pattern in the learning process.
  • the determination of the printing pattern to be detected in the sensor arrangement 14, in particular after a format change, is not limited to the above method; in particular, the sensor arrangement 14 does not necessarily comprise a learning module. It is also possible, for example, that for every possible format a suitable print pattern has already been learned in advance and stored in a database.
  • the database can be an external database and / or stored in the sensor arrangement 14, in particular in the memory 18, and / or in the machine control 16.
  • the pre-teaching described can be done with the sensor assembly 14, but also with another sensor arrangement, in particular by means of a laboratory device.
  • the printing pattern to be recognized is format-dependent in the sensor arrangement 14 definable.
  • the machine assembly 20 here includes a machine 10 as in FIG Fig. 1 and a bobbin loader 21 having a bobbin 22.
  • the bobbin loader 21 is adapted to automatically tie a strip of material 11 from an unused bobbin 22 to a strip of material from a spent bobbin 22 in production.
  • a sensor assembly 14 ' is arranged, which is the same structure as in Fig. 1 shown sensor assembly 14 and with the same Relative to the printable or printed side of the strip of material arranged.
  • the sensor assembly 14 ' may be connected to the machine controller 16 of the machine 10.
  • the sensor arrangement 14 ' can be connected to a separate electronic control device of the reel loader 21, which is expediently connected to the control device 16 of the machine 10.
  • the sensor arrangement 14 ' continuously provides a position signal about the position of the material strip 11 in the reel loader 11. In particular, after a change of the reel 22 this position signal is available as quickly as possible.
  • the sensor assembly 14 is preferably synchronized with the sensor assembly 14 'to the same printed pattern to be recognized.
  • a print pattern to be recognized by means of the sensor arrangement 14 can in particular be stored in the sensor arrangement 14 'via the control device 16 and vice versa.
  • the embodiment according to Fig. 3 includes a plurality of sensor assemblies 14, 14 'in the machine assembly 20.
  • the machine assembly 20 includes only one sensor assembly 14 or 14' in one of the machines 10, 21.
EP13190814.7A 2012-11-06 2013-10-30 Verfahren zur erfassung der lage eines vorbedruckten materialstreifens in einer maschine der tabak verarbeitenden industrie, und maschine der tabak verarbeitenden industrie Active EP2727481B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL13190814T PL2727481T3 (pl) 2012-11-06 2013-10-30 Sposób odczytu położenia zadrukowanego wstępnie pasa materiału w maszynie przemysłu tytoniowego i maszyna przemysłu tytoniowego

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102012220155.6A DE102012220155A1 (de) 2012-11-06 2012-11-06 Verfahren zur Erfassung der Lage eines vorbedruckten Materialstreifens in einer Maschine der Tabak verarbeitenden Industrie, und Maschine der Tabak verarbeitenden Industrie

Publications (3)

Publication Number Publication Date
EP2727481A2 true EP2727481A2 (de) 2014-05-07
EP2727481A3 EP2727481A3 (de) 2018-01-03
EP2727481B1 EP2727481B1 (de) 2020-07-01

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EP13190814.7A Active EP2727481B1 (de) 2012-11-06 2013-10-30 Verfahren zur erfassung der lage eines vorbedruckten materialstreifens in einer maschine der tabak verarbeitenden industrie, und maschine der tabak verarbeitenden industrie

Country Status (4)

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EP (1) EP2727481B1 (pt-PT)
CN (1) CN103808261B (pt-PT)
DE (1) DE102012220155A1 (pt-PT)
PL (1) PL2727481T3 (pt-PT)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2990366A1 (en) * 2014-08-12 2016-03-02 Bell and Howell, LLC Systems, methods, and computer readable media for sheet registration in a tractorless sheet processing device using at least one existing sheet feature
IT201800001948A1 (it) * 2018-01-30 2019-07-30 Gd Spa Macchina e metodo per la realizzazione di fascette di incarto per l’industria del tabacco
IT201800006360A1 (it) * 2018-06-18 2019-12-18 Metodo per la lavorazione di un nastro di materiale di incarto per realizzare articoli da fumo
EP4101647A1 (de) * 2021-06-11 2022-12-14 BST GmbH Verfahren zum digitaldruck auf einer laufenden bedruckstoffbahn

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DE102016005173A1 (de) * 2016-04-29 2017-11-02 Focke & Co. (Gmbh & Co. Kg) Verfahren zur Prüfung von Zigaretten oder Zigarettenpackungen
DE102017118083B4 (de) 2017-08-09 2022-11-24 Sick Ag Sensor zur Erfassung eines Objekts und Verfahren zum Einstellen eines Schaltpunktes
JP7084841B2 (ja) * 2018-10-12 2022-06-15 住友重機械工業株式会社 制御装置、画像情報取得装置システム、撮像制御システム及び印刷システム

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Publication number Priority date Publication date Assignee Title
EP2990366A1 (en) * 2014-08-12 2016-03-02 Bell and Howell, LLC Systems, methods, and computer readable media for sheet registration in a tractorless sheet processing device using at least one existing sheet feature
US9919443B2 (en) 2014-08-12 2018-03-20 Bell And Howell, Llc Systems, methods, and computer readable media for sheet registration in a tractorless sheet processing device using at least one existing sheet feature
IT201800001948A1 (it) * 2018-01-30 2019-07-30 Gd Spa Macchina e metodo per la realizzazione di fascette di incarto per l’industria del tabacco
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EP4101647A1 (de) * 2021-06-11 2022-12-14 BST GmbH Verfahren zum digitaldruck auf einer laufenden bedruckstoffbahn
WO2022258255A1 (de) * 2021-06-11 2022-12-15 Bst Gmbh Verfahren zum digitaldruck auf einer laufenden bedruckstoffbahn
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Also Published As

Publication number Publication date
EP2727481B1 (de) 2020-07-01
CN103808261B (zh) 2019-04-16
EP2727481A3 (de) 2018-01-03
PL2727481T3 (pl) 2020-11-30
DE102012220155A1 (de) 2014-05-08
CN103808261A (zh) 2014-05-21

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