EP1707064A1 - Machine pour manipuler des articles essentiellement cylindriques de tabac, dispositif de commande, et méthode de diagnostic appliquée à une telle machine - Google Patents

Machine pour manipuler des articles essentiellement cylindriques de tabac, dispositif de commande, et méthode de diagnostic appliquée à une telle machine Download PDF

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Publication number
EP1707064A1
EP1707064A1 EP06111787A EP06111787A EP1707064A1 EP 1707064 A1 EP1707064 A1 EP 1707064A1 EP 06111787 A EP06111787 A EP 06111787A EP 06111787 A EP06111787 A EP 06111787A EP 1707064 A1 EP1707064 A1 EP 1707064A1
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EP
European Patent Office
Prior art keywords
data item
seat
machine
comparison data
recording signal
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.)
Withdrawn
Application number
EP06111787A
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German (de)
English (en)
Inventor
Francesco Nicastro
Maurizio Cotti
Giorgio Mylonopoulos
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GD SpA
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GD SpA
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Publication date
Application filed by GD SpA filed Critical GD SpA
Publication of EP1707064A1 publication Critical patent/EP1707064A1/fr
Withdrawn legal-status Critical Current

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    • 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
    • A24C5/33—Catching or ordering devices
    • A24C5/336—Turning means
    • 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
    • A24C5/322—Transporting cigarettes during manufacturing
    • A24C5/328—Controlling means

Definitions

  • the present invention relates to a machine for processing articles, a control device, and a diagnostic method applied to such a machine.
  • the present invention relates to a machine for processing articles and comprising a transfer device, which feeds the articles along a feed path from an input station to an output station, and comprises at least one seat and at least one operating component for moving the seat.
  • the seat picks up a respective article at the input station, releases the article at the output station, and returns to the input station along a return path.
  • a machine for processing articles as claimed in any one of the independent Claims relating to the machine, and preferably in any one of the Claims depending directly or indirectly on said independent Claims.
  • control device as claimed in the Claim relating to the device.
  • Number 1 in Figure 1 indicates as a whole a machine for processing cylindrical tobacco articles, in particular cigarettes 2.
  • the machine comprises a feed conveyor 3 for feeding cigarettes 2 to an input station 4; a transfer device 5 for transferring cigarettes 2 from input station 4 to an output station 6 along a feed path P1; and a conveyor wheel 7 for receiving cigarettes 2 from transfer device 5 at output station 6.
  • Transfer device 5 comprises a conveyor roller 8, which rotates about a respective horizontal axis of rotation 9 and has a number of peripheral housings 10 equally spaced about axis 9 and each comprising two elongated, substantially coaxial seats 11 and 11', each having an externally concave surface with suction nozzles.
  • Roller 8 comprises an operating unit 12 (shown partly) for moving seats 11 and 11' longitudinally and parallel to axis 9, and which comprises a number of rods 12'. Each rod 12' supports a respective seat 11 and 11', and slides longitudinally in a direction parallel to axis 9.
  • transfer device 5 is normally used to part two cigarettes 2 just formed by transversely cutting a double cigarette (not shown).
  • Machine 1 also comprises a control device 13 for ensuring seats 11, 11' are positioned correctly along feed and return paths P1 and P2.
  • Control device 13 comprises two proximity sensors 14, 14', each for emitting a recording signal S relative to the position of a respective seat 11, 11' of each housing 10; and a computer 15 connected to sensors 14, 14' and for comparing recording signal S with a reference data item DR to obtain at least one comparison data item DC from which to determine a fault on operating unit 12.
  • fault is intended to mean an operating condition which is already causing production problems, e.g. a relatively high percentage of reject cigarettes, or a condition which, if not corrected, would presumably result in production problems.
  • reference data item DR may comprise one or more elements, e.g. may be a single value or a matrix of values.
  • comparison data item DC may comprise one or more elements, e.g. may be a single value or a matrix of values.
  • Computer 15 may acquire a recorded data item as a function of recording signal S and subtract the recorded data item from a reference data item DR value to obtain a comparison data item DC value; and, in the event the comparison data item DC value exceeds a given threshold value, control device 13 informs the user of the fault by means of acoustic and/or visual signals and/or stops machine 1.
  • proximity sensor 14 emits a signal Sa every time seat 11a travels past sensor 14.
  • Signal Sa has a peak PR indicating the minimum distance between seat 11a and proximity sensor 14, and which has a respective recorded height h, and a minimum machine angle AM corresponding to the instant in which peak PR is recorded.
  • Computer 15 preferably processes signal Sa from sensor 14 to obtain a response curve C1 (shown in Figure 4) indicating distances between seat 11a and sensor 14 as a function of machine angles of transfer device 5.
  • curve C1 is substantially W-shaped, and has peak PR and a groove GR, which indicates the maximum distance between the seat and the sensor, and which has a respective recorded height h'.
  • machine angle is intended to mean a given point in an operating cycle at which transfer device 5 assumes a given operating configuration typical of that point. If transfer device 5 is operated at constant speed, the same machine angles of successive operating cycles follow one another at constant time intervals of a duration equal to the duration of one operating cycle.
  • peak PR is compared with reference data item DR to obtain comparison data item DC.
  • recorded height h may be compared with reference data item DR to determine the correct radial position of seat 11a with respect to axis 9; and minimum machine angle AM may be compared with reference data item DR to determine the correct angular position of seat 11a with respect to axis 9.
  • reference data item DR comprises a reference curve C2; and computer 15 compares response curve C1 with reference curve C2 to obtain comparison data item DC comprising information relating to the angular and radial position of seat 11a with respect to axis 9.
  • computer 15 determines a neighbourhood of peak PR having a given area A, and identifies a mid-line M of area A (i.e. a line dividing area A into two portions of equal area) having a constant minimum machine angle T1, which is compared with reference data item DR (e.g. the machine angle of a mid-line of curve C2) to obtain comparison data item DC comprising information relative to the angular position of seat 11a with respect to axis 9.
  • reference data item DR e.g. the machine angle of a mid-line of curve C2
  • computer 15 determines the recorded height h' of groove GR; and recorded height h' is compared with reference data item DR to obtain comparison data item DC comprising information relative to the radial position of seat 11a with respect to axis 9.
  • curve C1 peak PR, groove GR, machine angle AM, mid-line M, machine angle T1, recorded height h and/or recorded height h' are calculated by computer 15 on the basis of the mean of a number of signals Sa emitted by sensor 14 during successive operating cycles.
  • computer 15 compares curve C1, peak PR, groove GR, machine angle AM, mid-line M, machine angle T1, recorded height h and/or recorded height h' with reference data item DR to obtain a number of comparison data items DC, each relating to a respective operating cycle; and computer 15 determines and employs a mean of said comparison data items DC to identify a possible machine fault.
  • one or more test curves are determined by which to extrapolate the time pattern of at least one of the following data items: curve C1, peak PR, groove GR, machine angle AM, mid-line M, machine angle T1, recorded height h, recorded height h' (i.e. the recorded data) and/or comparison data item DC.
  • Maintenance work is programmed as a function of the instants in which one or more test curves intersect respective reference curves of reference data item DR. More specifically, maintenance may be programmed at the exact instant in which a test curve intersects the respective reference curve, or at a given time interval before or after the instant in which a test curve intersects the respective reference curve.
  • Figure 5 shows a test curve, in which time is shown along the y axis, and the x axis shows at least one of the following data items: curve C1, peak PR, groove GR, machine angle AM, mid-line M, machine angle T1, recorded height h, recorded height h' and/or comparison data item DC.
  • K and R in Figure 5 indicate a test curve and reference curve respectively.
  • test curves K are preferably linear, and reference curves R preferably each define a respective constant value.
  • any incorrect positioning of seat 11a along paths P1 and P2, and therefore at input and output stations 4 and 6, can be determined quickly and easily.
  • control device 13 provides for programming maintenance to correct the fault in such a way as to prolong operation of machine 1 as long as possible before the fault can pose production problems on transfer device 5.
  • this is achieved in a particularly advantageous manner by determining the time pattern of recording signals S, comparison data items DC and/or mean values thereof.
  • Computer 15 processes the signal from sensor 14' in the same way as recording signal Sa from sensor 14, to preferably obtain at least one of the following recorded data items: curve C1, peak PR, groove GR, machine angle AM, mid-line M, machine angle T1, recorded height h, recorded height h'.
  • At least one recorded data item C1, PR, GR, AM, M, T1, h and h' relative to a signal emitted by sensor 14' forms part of reference data item DR.
  • at least one of recorded data items C1, PR, GR, AM, M, T1, h and h' relative to the signal emitted by sensor 14 is therefore compared with at least one of the corresponding recorded data items C1, PR, GR, AM, M, T1, h and h' relative to the signal emitted by sensor 14', in addition to or instead of given data items forming part of reference data item DR.
  • FIG. 6 shows a further embodiment of machine 1 for processing cigarettes 2, and in which any parts similar to those in Figures 1, 2 and 3 are indicated using the same reference numbers.
  • Machine 1 in Figure 6 mainly differs from machine 1 in Figure 1 as regards the following.
  • Seats 11 and 11' are not movable axially and parallel to axis 9 with respect to one another. More specifically, seats 11' are connected integrally to conveyor roller 8; and operating unit 12 moves seats 11 radially with respect to axis 9, and rotates seats 11 about respective axes 16 substantially crosswise to axis 9.
  • Transfer device 5 in Figure 6 is normally used to re-orient some of cigarettes 2, so that the filters of all of cigarettes 2 are located on the same side.
  • a housing 10 comprising two seats 11 and 11'
  • the two seats 11 and 11' are substantially coaxial with each other, and each receive a respective cigarette 2.
  • roller 8 rotates about axis 9 and housing 10 travels along a feed path P1
  • seat 11 moves radially with respect to and away from axis 9, and then rotates about axis 16 into a position parallel to respective seat 11'.
  • cigarettes 2, arranged in twos with their filters side by side in seats 11 and 11' are unloaded onto conveyor wheel 7.
  • seat 11 repeats in reverse the same movements performed along feed path P1, so that it is once more positioned coaxially with seat 11' by the time housing 10 reaches input station 4.
  • Machine 1 in Figure 6 also comprises a control device 13' substantially identical, structurally and functionally, to control device 13.
  • Control device 13' differs from control device 13 by having only one proximity sensor 14 located along return path P2 at input station 4. Location of sensor 14 at input station 4 provides for determining, to a relatively high degree of precision, whether seat 11 is restored to a position substantially coaxial with seat 11'.
  • sensor 14 emits recording signal S as a seat 11 travels past sensor 14; signal S is processed by computer 15 to obtain curve C1; and, at this point, the machine angle of peak PR and the value of height h of peak PR are obtained and compared with reference data item DR. More specifically, the difference between the machine angle of peak PR and a reference machine angle is determined; and, when the difference between the machine angle of peak PR and the reference machine angle is above (or below) a given threshold value, control device 13' emits an error signal indicating a fault relative to incorrect rotation of seat 11 about axis 16.
  • control device 13' emits an error signal indicating a fault relative to incorrect radial movement of seat 11.
  • Figure 8 shows a reference curve C3 relative to a substantially fault-free device.
  • Figure 9 shows curve C1 for various seats 11. As shown clearly by a comparison of curves C1 and C3, the height h of peak PR relative to seat 11 is considerably greater than that of the corresponding peak in curve C3. In which case, device 13' therefore emits an error signal indicating a fault relative to incorrect radial movement of seat 11.
  • Figures 10-12 show a detail of machine 1 in various operating positions. More specifically, Figure 10 shows the relative seat 11-sensor 14 position when peak PR is recorded; Figure 11 shows the relative seat 11-sensor 14 position when groove GR is recorded; and Figure 12 shows the relative seat 11-sensor 14 position when a peak PS smaller in height than peak PR is recorded.

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  • Control Of Conveyors (AREA)
  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)
EP06111787A 2005-03-31 2006-03-28 Machine pour manipuler des articles essentiellement cylindriques de tabac, dispositif de commande, et méthode de diagnostic appliquée à une telle machine Withdrawn EP1707064A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000204A ITBO20050204A1 (it) 2005-03-31 2005-03-31 Macchina per il trattamento di articoli, dispositivo per il controllo e metodo diagnostico applicato a tale macchina

Publications (1)

Publication Number Publication Date
EP1707064A1 true EP1707064A1 (fr) 2006-10-04

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Application Number Title Priority Date Filing Date
EP06111787A Withdrawn EP1707064A1 (fr) 2005-03-31 2006-03-28 Machine pour manipuler des articles essentiellement cylindriques de tabac, dispositif de commande, et méthode de diagnostic appliquée à une telle machine

Country Status (4)

Country Link
US (1) US20060236493A1 (fr)
EP (1) EP1707064A1 (fr)
JP (1) JP2006280374A (fr)
IT (1) ITBO20050204A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2904913A1 (fr) * 2014-02-07 2015-08-12 HAUNI Maschinenbau AG Dispositif et procédé destinés à retourner des objets en forme de tige de l'industrie de traitement du tabac

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3232792A1 (de) * 1981-09-19 1983-03-31 Hauni-Werke Körber & Co KG, 2050 Hamburg Foerdervorrichtung fuer stabfoermige artikel der tabakverarbeitenden industrie
US5209249A (en) * 1988-07-28 1993-05-11 G. D. Societa Per Azioni Cigarette checking apparatus
US20040108186A1 (en) * 2002-12-05 2004-06-10 Hauni Maschinenbau Ag Multifunctional conveyor drum
US20050139452A1 (en) * 2003-10-24 2005-06-30 Hauni Maschinenbau Ag Multifunctional conveying drum

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3232792A1 (de) * 1981-09-19 1983-03-31 Hauni-Werke Körber & Co KG, 2050 Hamburg Foerdervorrichtung fuer stabfoermige artikel der tabakverarbeitenden industrie
US5209249A (en) * 1988-07-28 1993-05-11 G. D. Societa Per Azioni Cigarette checking apparatus
US20040108186A1 (en) * 2002-12-05 2004-06-10 Hauni Maschinenbau Ag Multifunctional conveyor drum
US20050139452A1 (en) * 2003-10-24 2005-06-30 Hauni Maschinenbau Ag Multifunctional conveying drum

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2904913A1 (fr) * 2014-02-07 2015-08-12 HAUNI Maschinenbau AG Dispositif et procédé destinés à retourner des objets en forme de tige de l'industrie de traitement du tabac
EP3323302A1 (fr) * 2014-02-07 2018-05-23 Hauni Maschinenbau GmbH Dispositif et procédé destinés à retourner des objets en forme de tige de l'industrie de traitement du tabac

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Publication number Publication date
US20060236493A1 (en) 2006-10-26
JP2006280374A (ja) 2006-10-19
ITBO20050204A1 (it) 2005-06-30

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