WO2018086712A1 - Appareil d'étiquetage et procédé de fonctionnement d'un tel appareil d'étiquetage - Google Patents

Appareil d'étiquetage et procédé de fonctionnement d'un tel appareil d'étiquetage Download PDF

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Publication number
WO2018086712A1
WO2018086712A1 PCT/EP2016/077560 EP2016077560W WO2018086712A1 WO 2018086712 A1 WO2018086712 A1 WO 2018086712A1 EP 2016077560 W EP2016077560 W EP 2016077560W WO 2018086712 A1 WO2018086712 A1 WO 2018086712A1
Authority
WO
WIPO (PCT)
Prior art keywords
web
belt conveyor
suction belt
label
labeling
Prior art date
Application number
PCT/EP2016/077560
Other languages
English (en)
Inventor
James Carmichael
Original Assignee
Sidel Participations
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 Sidel Participations filed Critical Sidel Participations
Priority to PCT/EP2016/077560 priority Critical patent/WO2018086712A1/fr
Priority to EP16801400.9A priority patent/EP3538443A1/fr
Publication of WO2018086712A1 publication Critical patent/WO2018086712A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65C—LABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
    • B65C9/00—Details of labelling machines or apparatus
    • B65C9/08—Label feeding
    • B65C9/18—Label feeding from strips, e.g. from rolls
    • B65C9/1803—Label feeding from strips, e.g. from rolls the labels being cut from a strip
    • B65C9/1815—Label feeding from strips, e.g. from rolls the labels being cut from a strip and transferred by suction means
    • B65C9/1819—Label feeding from strips, e.g. from rolls the labels being cut from a strip and transferred by suction means the suction means being a vacuum drum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65C—LABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
    • B65C9/00—Details of labelling machines or apparatus
    • B65C9/08—Label feeding
    • B65C9/18—Label feeding from strips, e.g. from rolls
    • B65C9/1865—Label feeding from strips, e.g. from rolls the labels adhering on a backing strip
    • B65C9/1876—Label feeding from strips, e.g. from rolls the labels adhering on a backing strip and being transferred by suction means
    • B65C9/188—Label feeding from strips, e.g. from rolls the labels adhering on a backing strip and being transferred by suction means the suction means being a vacuum drum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65C—LABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
    • B65C9/00—Details of labelling machines or apparatus
    • B65C9/40—Controls; Safety devices
    • B65C9/42—Label feed control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65C—LABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
    • B65C9/00—Details of labelling machines or apparatus
    • B65C2009/0081—Means for forming a label web buffer, e.g. label web loop

Definitions

  • the present invention relates to a labeling apparatus for applying label sheets onto articles.
  • the present invention also relates to a method of operating such a labeling apparatus.
  • the present invention may be used to the particular advantage of labeling articles, such as receptacles, bottles, containers and the like.
  • the packaging of food or non-food products into respective articles, in particular receptacles, containers, bottles and the like comes along with a labeling of the articles with respective label sheets, in particular paper or plastic label sheets during a labeling process provided for by means of a labeling apparatus .
  • the articles are typically advanced by a conveying carrousel along an article path so as to advance the articles towards an application station at which one respective label sheet is stuck onto each article.
  • the label sheets are typically not stored in a magazine unit of the labeling apparatus as single label sheets, but they are stored in the form of a web of labeling material.
  • the web of labeling material is wound on a reel and, in use, it is rewound from the reel and is advanced by conveying means along a web path while the articles are advanced by the conveying carousel.
  • the labeling apparatus comprises conveying means, which advance the web of labeling material (i.e. the base layer together with the attached label sheets) to a detachment station at which the label sheets are separated from the base layer so that they can be attached onto the articles advancing along the article path.
  • the base layer is further advanced to a disposal station for disposing of the base layer.
  • Another type of web of labeling material allows to obtain single label sheets by cutting the web of labeling material at a cutting station.
  • the web of labeling material of this kind comprises a repeated image pattern defining the single label sheet areas (i.e. the areas define the single label sheets once separated from the web of labeling material) .
  • Such a kind of web of labeling material can also comprise a plurality of perforated lines, each one interposed between two respective label sheet sections of the web of labeling material.
  • the conveying means advance the web of labeling material to the cutting station at which the web of labeling material is cut in such a way that each one of the single label sheets presents the image pattern and then the label sheets are transferred at a transfer station onto a transfer drum, which further advances the label sheets to the application station.
  • the known transfer drums comprise label retaining segments, being equally spaced angularly around the axis of the transfer drum and having respective retaining sections which retain the label typically by means of suction and respective transition sections, along which label sheets fed at the transfer station slide prior to reaching the respective retaining sections.
  • the label retaining segments comprise a pair of pads protruding from the transfer drum, each one adapted to interact with a leading edge or a trailing edge of the label sheets and defining the retaining and transition sections.
  • a transfer drum must guarantee that the suction forces applied onto the label sheets when sliding are different from when being retained.
  • both the retaining and the transition sections become contaminated so that regular and undesired cleaning cycles must be performed leading to unwanted downtimes.
  • the transition sections are known to be more critical with respect to becoming contaminated than the retaining sections.
  • one kind of web of labeling material comprises a backside having a pre-glued pattern of glue.
  • Another kind of web of labeling material does not come along with any pattern of glue. Therefore, when the labeling apparatus operates with this latter kind of web of labeling material, the pattern of glue must be applied onto the label sheets by means of a glue application unit prior to applying the label sheets onto the article or alternatively, the glue application unit applies a pattern of glue onto the articles prior to attaching the label sheets.
  • the conveying means applied have a similar configuration.
  • the conveying means comprise a plurality of rollers and other support units for tensioning and supporting the web of labeling material when being advanced.
  • a drawback of these conveying means is seen in that while the web of labeling material has little mass and a high strength weight ratio, the acceleration of the rollers and the other support devices causes high stresses in the web of labeling material possibly leading to a permanent elongation of the web of labeling material.
  • a further drawback lies in that the known conveying means come along with a significant inertia, thereby significantly limiting the flexibility of the operation of the conveying means.
  • Figure 1A shows a schematic view of a first embodiment of a labeling apparatus according to the present invention, with parts removed for clarity;
  • Figure IB shows a schematic and enlarged view of some details of the labeling apparatus of Figure 1A;
  • Figure 2 shows a perspective top-side view of a further detail of the labeling apparatus of Figure 1A, with parts removed for clarity;
  • Figures 3A to 3C schematically illustrate components of the labeling apparatus of Figure 1A and their operational relationship with one another for transferring label sheets, with parts removed for clarity;
  • Figures 4A to 4C show operating speed profiles of the components shown in Figures 3A to 3C;
  • Figure 5 shows a schematic view of a second embodiment of a labeling apparatus according to the present invention, with parts removed for clarity;
  • FIGS 6A to 6C schematically illustrate details of the operation of the labeling apparatus of Figure 5, with parts removed for clarity;
  • Figure 7 shows a schematic view of a third embodiment of a label apparatus according to the present invention, with parts removed for clarity;
  • Figure 8 shows a schematic view of a variation of the embodiment of Figure 7, with parts removed for clarity .
  • Number 1 in Figure 1A indicates as a whole a first embodiment of a labeling apparatus according to the present invention, only partially shown to the extent that is necessary for the comprehension of the present invention .
  • Apparatus 1 is adapted to be used for handling, transferring and applying label sheets 2 to respective articles 3 or, more specifically, receptacles, such as bottles or containers, as articles 3 are advanced along an article path PA.
  • apparatus 1 comprises an article conveyor device, in particular a conveying carrousel 4 rotatable around a central axis A and being configured to support a plurality of articles 3 on its periphery and to advance these articles 3 along path PA by rotation around axis A.
  • path PA has an arc-shaped configuration.
  • the article conveying device could be of the linear type being adapted to advance articles 3 along a linear article path .
  • axis A extends vertically and the path PA extends in an horizontal plane.
  • articles 3 can be rotated in a manner known as such as they are advanced along path PA by carrousel 4 and as label sheets 2 are applied to the articles 3 themselves.
  • apparatus 1 further comprises:
  • - conveying means 8 adapted to convey web 6 along a web path PW from unit 5 to device 7, in particular to an end station 9 being arranged in the area of device 7.
  • apparatus 1 also comprises a control unit 10 adapted to control operation of apparatus 1 itself, in particular of unit 5, device 7 and conveying means 8 and preferably of carousel 4.
  • control unit 10 adapted to control operation of apparatus 1 itself, in particular of unit 5, device 7 and conveying means 8 and preferably of carousel 4.
  • apparatus 1 is configured to apply label sheets 2 onto article 3, which are cut from web 6 and which require the application of a pattern of glue onto the backside of label sheets 2 and/or articles 3 prior to the application of label sheets 2 onto articles 3.
  • apparatus 1 also comprises a cutting unit 11 adapted to cut web 6 at a cutting station 12 by means of non-contact or contact cutting so as to obtain single label sheets 2 from web 6.
  • cutting station 12 being positioned upstream of device 7, in particular of end station 9 along path PW.
  • unit 5 is configured to house a reel 15 carrying web 6 (i.e. web 6 is wound onto reel 15) .
  • Web 6 wound onto reel 15 defines a diameter, which, during operation of apparatus 1, decreases with time.
  • reel 15 is housed within a reel seat (not shown and known as such) of unit 5 such that reel 15 is rotatable around a central axis B, in particular axis B being substantially parallel to axis A, for allowing unwinding of web 6 from reel 15.
  • unit 5 comprises a driving unit (not shown and known as such) , in particular being controlled by unit 10, and being adapted to drive rotation of reel 15 around axis B.
  • driving unit not shown and known as such
  • unit 5 also comprises a sensor element 16 adapted to determine the diameter of web 6 wound onto reel 15, in particular to determine the, in use, changing diameter. More specifically, sensor element 16 is configured to send the information about the diameter to unit 10.
  • Unit 10 is adapted to control the driving unit of unit 5 so as to adapt the rotation speed of reel 15 to the diameter determined by sensor element 16.
  • cutting unit 11 comprises a cutting assembly 17 adapted to cut web 6 at cutting station 12.
  • cutting assembly 17 comprises a blade element 18 so as to cut web 6 by means of contact.
  • cutting assembly 17 could cut by non-contact means, such as by a laser blade, an ultrasonic blade or other alternative non-contact cutting means.
  • Unit 11 also comprises a conveyor unit adapted to advance web 6 in cooperation with conveying means 8.
  • the conveyor unit is configured to support advancement of web 6 to device 7, in particular to end station 9, in particular along an end portion of path PW, even more particular in a substantially passive manner.
  • the conveyor unit is configured to allow slipping of web 6 over at least a portion of the conveyor unit, specifically by applying an appropriate suction on web 6.
  • the conveyor unit also comprises a counter-blade element collaborating with blade element 18 for cutting web 6.
  • the conveyor unit is configured to operate at varying working speeds .
  • the conveyor unit comprises a cutting drum 21 being rotatable around a rotation axis C, in particular being substantially parallel to axes A and B.
  • Cutting drum 21, in particular being controlled by unit 10 is configured to rotate at a varying rotation speed between a minimum and a maximum rotation speed (see Figure 4C, which represents the rotational speed profile of drum 21 as a function of time) .
  • the rotational speed profile of cutting drum 21 is constant, meaning that the time of drum 21 rotating at the maximum and at the minimum rotation speed is not varied.
  • the correct cutting of web 6 is solely achieved by operation of conveying means 8 in a manner explained further below.
  • the conveyor unit could be replaced by a web support unit, in particular if cutting unit 11, in particular cutting assembly 17 cuts by non-contact means .
  • device 7 comprises a label transfer drum 22 rotatable around a central axis D, in particular axis D being substantially parallel to axis A, B and C.
  • drum 22 is arranged downstream of drum 21 along path PW and is adapted to receive label sheets 2, at station 9 (i.e. end station 9 corresponds to a transfer station) .
  • drum 22 is adapted to retain label sheets 2 on an outer lateral surface of drum 21 itself, along a label path PL from station 9 to a transfer station 23 through rotation of drum 22 around axis D.
  • path PL having a substantially arc-shaped configuration.
  • drum 22 is configured, in particular being controlled by unit 10, to rotate at a constant operational rotation speed (see Figure 4A, which represents the constant rotational speed profile of drum 22 as a function of time) when operating in a normal operational configuration.
  • a constant operational rotation speed see Figure 4A, which represents the constant rotational speed profile of drum 22 as a function of time
  • Drum 22 is adapted to transfer label sheets 2 to carousel 4 at station 23.
  • drum 22 is adapted to apply the label sheets 2 onto articles 3 advancing along path PA at station 23.
  • drum 22 is positioned peripherally adjacent to carousel 4 at station 23.
  • drum 22 is also arranged peripherally adjacent, in particular tangential, to cutting drum 21 at station 9.
  • drum 22 comprises a plurality of label retaining sections 27 peripherally arranged and, in particular being equally spaced angularly around axis D.
  • Each retaining section 27 is adapted to retain one respective label sheet 2 during advancement between station 9 and station 23.
  • Each label retaining section 27 is delimited by a pair of transfer pads 28a and 28b protruding away from axis D.
  • one transfer pad 28a of each pair of transfer pads 28a and 28b is configured to engage with a leading edge 2a of the respective label sheet 2 and the other transfer pad 28b is configured to engage with a trailing edge 2b of the respective label sheet 2.
  • label sheets 2 are retained on the outer lateral surface of drum 22 by means of suction (known as such and not further explained) .
  • drum 22 comprises a plurality of voids 29, each one arranged between two respective label retaining sections 27 and each one adapted to accumulate contaminations, such as e.g. glue particles.
  • Apparatus 1 also comprises a glue application unit 30 adapted to apply a pattern of glue onto label sheets 2 at a glue application station 31, in particular station 31 being arranged between station 9 and 23.
  • unit 30 is configured to apply a pattern of glue onto the backside of label sheets 2 in proximity of respectively the leading and trailing edges 2a and 2b.
  • unit 30 comprises a rotatable glue roller adapted to apply the pattern of glue onto label sheets 2.
  • the glue roller is arranged peripherally adjacent, in particular tangential, to drum 22 at glue application station 31.
  • unit 30 could comprise glue application nozzles replacing the glue roller. These glue application nozzles could operate in a non-contact or contact mode.
  • conveying means 8 comprise:
  • operative branches 37 and 39 have a rectilinear configuration and, accordingly, portions PW1 and PW2 of path PW are rectilinear.
  • operative branch 35 is adapted to advance web 6 in a first direction Dl when advancing web 6 along portion PW1 of web path PW and operative branch 37 is adapted to advance web 6 along a second direction D2, in particular distinct from and opposite to the first direction Dl, when advancing web 6 along portion PW2 of path PW.
  • conveyors 35 and 37 are spaced apart and arranged parallel to one another. In particular, they are arranged such that the respective operative branches 36 and 38 at least partially face one another, in the example shown in Figures 1A and IB they face one another.
  • conveyors 35 and 37 in particular operative branches 36 and 38 extend along respective longitudinal axes E and F.
  • the respective operative branches 36 and 38 being substantially parallel to axes E and F.
  • conveyors 35 and 37 have similar dimensions; in particular, the extensions of conveyors 35 and 37 along respectively axes E and F are similar.
  • conveyors 35 and 37 define a conveying space 39, within which the portions 6a and 6b of web 6 are advanced by respectively operative branches 36 and 38.
  • Web 6 comprises an open loop portion 6c formed between the portions 6a and 6b advanced by operative branches 36 and 38.
  • conveyors 35 and 37 are configured to operate in cooperation as a buffer device for web 6.
  • conveyor 35 substantially defines the infeed speed of web 6 into the buffer device
  • conveyor 37 substantially defines the outfeed speed of web 6 into the buffer device.
  • unit 10 is configured to control conveying means 8 to advance web 6 to device 7, in particular to drum 22, even more particular to end station 9 at a web advancement speed varying between a minimum and a maximum web advancement speed.
  • unit 10 is adapted to control a varying working speed of conveyor 37, in particular of operative branch 38 between a minimum and a maximum working speed so as to advance web 6 to device 7, in particular to drum 22, even more particular to end station 9 at a varying web advancement speed between a minimum and a maximum web advancement speed.
  • unit 10 is configured to control outfeed speed of web 6 in an oscillating manner.
  • the web advancement speed of web 6 as fed to device 7, in particular to drum 22, even more particular to end station 9 is substantially identical to the working speed of conveyor 37 (i.e. web 6 is fed to device 7, in particular to drum 22, even more particular to end station 9 at a varying speed identical to the outfeed speed of web 6; see Figure 4B, which shows the working speed profile of conveyor 37 as a function of time) .
  • unit 10 is configured to control a substantially constant working speed of conveyor 35; i.e. the infeed speed of web 6 is substantially constant.
  • unit 10 is configured to control the working speed of conveyor 35, in particular of operative branch 36 and the rotational speed of reel 15 as a function of one another so that web 6 remains tensioned during advancement, in particular during advancement from unit 5 to conveyor 35.
  • conveying means 8 may comprise controllable tensioning members for guaranteeing the required tension of web 6 during advancement .
  • unit 10 is configured to control the working speed of conveyor 37, in particular of operative branch 38 such that the loop portion 6c oscillates around an intermediate position 40, in particular between two external positions 41 and 42.
  • conveying means 8 also comprise a first sensor element 43, such as a laser spot type sensor, adapted to detect or determine the filling state of the buffer device. More specifically, sensor element 43 is adapted to track the position of the loop portion 6c, in particular within the conveying space 39 as a measure of the filling state of the buffer device. In particular, sensor element 43 being configured to determine the positon of the vertex of loop portion 6c.
  • a first sensor element 43 such as a laser spot type sensor
  • Conveying means 8 also comprise a second sensor element 44 adapted to determine graphical marker elements provided on web 6.
  • graphical marker elements are defined by the images or parts of the images of the final single label sheets 2 or additional graphic elements allowing to determine the extent (length) of the single label sheets 2.
  • sensor element 44 is arranged at a station in the area of conveyor 37. Even more particularly, sensor element 44 is configured to determine a temporal stamp of the graphical markers as web 6 is advanced from conveyor 37 to device 7, in particular to drum 22, even more particular to station 9 and to send the information to unit 10.
  • Unit 10 is configured to correlate the temporal stamp and the working speed of conveyor 37 and to calculate whether the web 6 advances, in use, such that the portion of web 6 defining the next label sheet 2 to be cut arrives at transfer device 7, in particular drum 22, even more particular at station 9 at the correct time (i.e. control unit 10 is configured to guarantee that the cut label sheets 2 show the correct graphics) .
  • the working speed of conveyor 37 is controlled such that the web advancement speed guarantees that the respective leading edge 2a of each label sheet 2 reaches station 9 simultaneously with the respective transfer pad 28a.
  • control unit 10 is configured to correct if required the web advancement speed by correcting the working speed of conveyor 37.
  • Control unit 10 is also configured to elaborate the information from sensor 44 to control cutting unit 11, in particular so that web 6 is cut at cutting station 12 at the correct moment so as to obtain correctly cut label sheets 2, in particular having the correct graphics.
  • conveyor 35 and conveyor 37 each comprise respectively a further operative branch 47 and 48 along which web 6 is advanced along respective further intermediate portions PW3 and PW4 of web path PW.
  • portion PW3 being positioned downstream of PWl and portion PW4 being positioned upstream of PW2.
  • operative branches 47 and 48 have rectilinear configurations; and operative branch 47 is parallel to operative branch 36 and operative branch 48 is parallel to operative branch 38.
  • conveyors 35 and 37 each comprise at least: a respective first main pulley 49 adapted to rotate around a respective rotation axis G;
  • a suction source 52 adapted to cooperate with the respective belt 51 and adapted to generate the required suction .
  • the respective pulleys 49 and 50 are arranged along respectively axes E and F.
  • pulleys 49 and 50 are toothed pulleys.
  • Each conveyor 35 and 37 also comprises a respective drive unit (not shown and known as such) adapted to drive rotation of the respective first main pulley 49 around axis G for moving the respective belt 51 and to passively rotate the respective pulley 50 around axis H.
  • a respective drive unit (not shown and known as such) adapted to drive rotation of the respective first main pulley 49 around axis G for moving the respective belt 51 and to passively rotate the respective pulley 50 around axis H.
  • belts 51 are toothed belts complementary to the respective toothed pulleys 49 and 50.
  • each respective suction belt 51 comprises a plurality of through-holes or slits (not shown and known as such) being adapted to be in fluidic connection with suction source 52, in particular for allowing to retain respectively portion 6a and 6b of web 6 cooperating with the respective operative branch 37 or 39 on the respective belt 51.
  • each respective belt 51 is also adapted to retain web 6 onto the respective further operative branches 47 and 48 by means of suction.
  • each belt 51 comprises at least one endless duct interposed between the respective suction source 52 and the through-holes or slits and adapted to establish the fluid connection between the respective suction source 52 and the through-holes or slits.
  • the endless duct is centrally arranged on the side of belt 51 cooperating with the respective pulleys 49 and 50, even more particular the side of each belt 51 carrying the teeth.
  • control unit 10 is configured to control a varying rotation speed of the respective pulley 49 of conveyor 37.
  • operative branch 36 is defined by the portion of conveyor 35 at which the respective belt 51 moves from the respective pulley 50 to the respective pulley 49;
  • operative branch 47 is defined by the portion of conveyor 35 at which the respective belt 51 advances from the respective pulley 49 to the respective pulley 50;
  • operative branch 38 is defined by the portion of conveyor 37 at which the respective belt 51 moves from the respective pulley 49 to the respective pulley 50;
  • operative branch 47 is defined by the portion of conveyor 37 at which the respective belt 51 advances from the respective pulley 50 to the respective pulley 49.
  • preferentially conveying means 8 comprise at least one tilt roller 53 adapted to tilt for controlling the orientation of the longitudinal axis J of tilt roller 53 for controlling the orientation of web 6, in particular when advancing, in use, from conveyor 37 to device 7, in particular to drum 22, even more particular to station 9.
  • apparatus 1 comprises means (known as such and not further described) for tilting roller 53.
  • tilt roller 53 is arranged substantially downstream of conveyor 37 along web path PW.
  • tilt roller 53 is arranged in the proximity of conveyor 37, even more particular adjacent to operative branch 48.
  • conveying means 8 also comprise a further tilt roller 54 adapted to tilt for controlling the orientation of the longitudinal axis J of tilt roller 53 for controlling the orientation of web 6, in particular the orientation of web 6 as fed to conveyor 35.
  • tilt roller 54 is arranged substantially downstream of conveyor 35 along the web path.
  • tilt roller 54 is arranged in the proximity of conveyor 35, even more particularly adjacent to operative branch 48.
  • apparatus 1 in particular conveying means 8, even more particular conveyor 37, comprises an orientation adjustment unit 55 adapted to control the relative orientation of conveyor 37 with respect to conveyor 35 (i.e. orientation adjustment unit 55 is adapted to adjust the orientation of axis F with respect to axis E) .
  • unit 55 is configured to adjust the orientation of axis F so as to control the final positioning of label sheets 2 on articles 3.
  • unit 55 is configured to compensate for any possible tracking errors of web 6 advancing along path PW. These tracking errors are reduced with respect to the ones, which occur in the labeling apparatuses known in the art as the web 6 is fixed on belts 51 of conveyors 35 and 37 by means of suction. However, in certain circumstances minor errors may still occur.
  • unit 55 is configured to control axes E and F so that the respective directional vectors describe an angle between -10° to 10°, in particular between -5° to 5°.
  • conveyor 37 is pivotable around a pivot point, in particular the pivot point being positioned in the area of the respective pulley 49.
  • unit 55 is adapted to pivot conveyor 37 about the pivot point. More specifically, unit 55 is configured to move the respective pulley 50, preferably along a path R, in particular having an arc-shaped profile, into one or the other respective direction for pivoting conveyor 37 about the pivot point. Specifically, unit 55 comprises a drive member 56, in particular carrying pulley 50, adapted to extract or retract for moving pulley 50 along path R.
  • conveyor 4 advances articles 3 along path PA through transfer station 23. During advancement articles 3 rotate around their central axis so as to support the attachment of label sheets 2 onto articles 3 themselves .
  • label sheets 2 are advanced to transfer station 23 and are transferred at station 23 to conveyor 4, in particular label sheets 2 are applied at transfer station 23 to articles 3.
  • Label sheets 2 to be applied are obtained from web 6 through cutting web 6 at cutting station 12. A pattern of glue is applied onto label sheets 2 at glue application station 31 prior to applying label sheets 2 onto articles 3.
  • web 6 is advanced by conveyor means 8 along path PW from unit 5 to device 7, in particular to drum 22, even more particular to end station 9.
  • conveying means 8 advance web 6 to device 7, in particular to drum 22, even more particular to end station 9 through cutting station 12.
  • web 6 is advanced along portion PWl by operative branch 36 of conveyor 35 and along portion PW2 by operative branch 38 of conveyor 37.
  • portions PWl and PW2 being rectilinear.
  • web 6 advances in a respectively first and second direction Dl and D2.
  • direction D2 is distinct from Dl and is opposite of direction Dl .
  • web 6, in particular portions 6a and 6b are adhered to the respective portions of belts 51 by application of suction.
  • the respective belts 51 are moved, in particular by the driven rotation of the respective pulley 49, also the web 6 adhering to the respective belts 51 is advanced.
  • web 6 advances at web advancement speeds which are substantially identical to the speeds of the moving belts 51.
  • the speeds of the respective moving belts 51 defining the working speeds of respectively conveyors 35 and 37.
  • web 6 is fed towards conveyor 35 at the infeed speed; and web 6 is fed towards device 7, in particular drum 22, even more particular to end station 9 at the outfeed speed.
  • the web advancement speed of web 6 to device 7, in particular to drum 22, even more particular to station 9 preferentially varies between a maximum and a minimum web advancement speed. Corrections of the web advancement speed may be required as a function of the information from sensor 44.
  • the position of the loop portion 6c oscillates around intermediate position 40, in particular between external position 41 and external position 42.
  • the operational rotation speed of drum 22 is kept constant.
  • the varying web advancement speed allows to compensate for the pitch between successive articles 3 advancing along path PA.
  • web 6 is advanced to device 7, in particular drum 22, even more particular to end station 9, in particular the leading edge of web 6, which defines the leading edge 2a of the label sheet 2 to be obtained, is advanced to device 7, in particular drum 22, even more particular to station 9.
  • the leading edge 2a of the label sheet 2 to be transferred onto drum 22, in particular the respective retaining section 27, even more particular the respective transfer pad 28a is advanced to device 7, in particular drum 22, even more particular to end station 9 (see Figure 3A) .
  • the respective retaining section 27, in particular the respective transfer pad 28a reaches station 9 due to rotation of drum 22. At station 9 leading edge 2a gets into contact with transfer pad 28a and is retained by the latter by means of suction.
  • conveying means 8 in particular conveyor 37 further advances web 6 (see Figure 3B) , in particular at the maximum web advancement speed (see Figure 4B) .
  • the maximum web advancement speed corresponds to the peripheral rotation speed of drum 22.
  • control unit 10 is configured to control advancement of web 6 such that web 6 is cut in correspondence with graphical markers (not shown and known as such) provided on web 6.
  • label sheet 2 is further advanced by collaboration of drum 22 and the conveyor unit of unit 11, in particular cutting drum 21.
  • trailing edge 2b reaches station 9.
  • transfer pad 28b reaches station 9 and trailing edge 2b engages with transfer pad 28b.
  • the web advancement speed to device 7, in particular drum 22, even more particular to station 9 is set to the minimum advancement speed, in particular by slowing down conveyor 37, in particular to the minimum web advancement speed, (see Figure 4B) so as to compensate for the pitch between successive articles 3.
  • drum 22 continues to rotate and further advances label sheet 2 along path PL towards transfer station 23 at which label sheet 2 is transferred to the respective article 3 in a manner known as such and not further explained.
  • a pattern of glue is applied onto label sheet 2 at station 23 prior to application of label sheet 2 onto article 3.
  • web 6 is cut by contact means.
  • the speed of the conveying unit would not necessarily require any variations.
  • a web support unit could be used instead of the conveying unit.
  • the longitudinal axis of web 6 is at least downstream of conveyor 37 perpendicular to axis D. This is achieved by controlling at least tilt roller 53.
  • tilt roller 53 is tilted by automatic or manual means (known as such) , in particular with respect to axis D.
  • orientation adjustment unit 55 controls the relative orientation of conveyors 35 and 37 with respect to one another, in particular so that label sheets 2 are applied to articles 3 at the desired positions.
  • orientation adjustment unit 55 controls the orientation of conveyor 37 with respect to conveyor 35.
  • the control of the orientation of conveyor 37 allows to place label sheets 2 at the correct elevation with respect to the longitudinal axes of articles 3.
  • the orientation of conveyor 37 is controlled such that the angle defined by the respective directional vectors of longitudinal axes E and F lies between -10° to 10°, in particular between -5° to 5°.
  • unit 55 moves the respective pulley 50 along path R.
  • drive member 56 extracts or retracts for moving pulley 50 into one or the other direction of path R.
  • number 1' indicates as a whole a second embodiment of labeling apparatus according to the present invention; as apparatus 1' is similar to apparatus 1, the following description is limited to the differences between them, and using the same references, where possible, for identical or corresponding parts.
  • apparatus 1' differs from apparatus
  • Apparatus 1 in label transfer device 7 comprising transfer drum 22' and in comprising cutting unit 11' and glue application unit 30'.
  • Apparatus 1' also differs from apparatus 1 in that apparatus 1' comprises a transfer station 59 at which web 6 is transferred onto drum 22' . Transfer station 59 being arranged downstream of end station 9.
  • transfer drum 22' is rotatable around axis D' , in particular axis D' being substantially parallel to axis A and B.
  • Drum 22' is adapted to retain label sheets 2 on its outer lateral surface during advancement of label sheets 2 from cutting station 12 to transfer station 23, in particular by means of suction (known as such and not described in detail) .
  • Drum 22' is also adapted to support web 6 in a slipping manner from station 59 to station 9.
  • drum 22' is controlled by the respective control unit (not specifically shown in Figure 5, but being substantially identical to unit 10 of apparatus 1) to rotate at a constant operational rotation speed, similar to what is shown in Figure 4A with respect to drum 22.
  • control unit 10 is configured to control a varying feed of web 6 to station 9, in particular by controlling conveyor 37.
  • cutting unit 11' is adapted to cut web 6 at cutting station 12 by non-contact means, such as by a laser blade, an ultrasonic blade or other alternative non-contact cutting methods.
  • unit 11' could be designed to cut by means of contact.
  • glue application unit 30' is configured to apply a pattern of glue at glue application station 31', glue application station 31' being interposed between station 59 and cutting station 12 (i.e. apparatus 1' is configured to apply a pattern of glue onto web 6, prior of cutting single label sheets 2 from web 6) .
  • glue application station 31' is configured to apply the pattern of glue by non-contact means, in particular the pattern of glue is applied to these portions of web 6, which after cutting, define edges 2a and 2b.
  • the glue pattern could be applied by a glue application unit similar to unit 30 of apparatus 1.
  • apparatus 1' does not comprise a glue application unit 30' or glue application unit 30' is inactive. This can be of advantage, if the web 6 of labeling material is of the pre-glued type or if a pattern of glue is applied onto articles 3 prior to the application of label sheets 2 onto articles 3.
  • apparatus 1' is similar to the function of apparatus 1. In the following, only the differences between the functions of apparatuses 1' and 1 are described with particular reference to Figures 6A to 6C.
  • Web 6 is advanced by conveying means 8 to device 7, in particular to drum 22', even more particular to end station 9 through transfer station 59 and cutting station 12.
  • glue is applied onto web 6 at glue application station 31' prior to cutting web 6 at cutting station 12.
  • Transfer drum 22' rotates at a constant operational rotation speed (i.e. the peripheral surface speed is constant) .
  • Web 6 is advanced to device 7, in particular to drum 22', even more particular to end station 9 at a varying web advancement speed, in particular by unit 10 controlling the working speed of conveyor 37.
  • web 6 Prior to the web 6, in particular the leading portion of web 6, reaching end station 9, web 6 is advanced at the minimum web advancement speed; in particular, the minimum web advancement speed being slower than the peripheral surface speed of drum 22'. Thus, during a first phase of the feeding of web 6 to end station 9, web 6 slips on the outer lateral surface of drum 22' (see Figure 6A) . Still, prior to reaching end position 9, the web advancement speed is set to the maximum web advancement speed, in particular being identical to the peripheral surface speed of drum 22'.
  • web 6 in particular the leading portion of web 6 (the edge which defines the leading edge 2a of the next label sheet 2 to be obtained) , reaches end station 9 (see Figure 6B) ; and web 6 is cut at cutting station 12 (see Figure 6C) .
  • the web advancement of web 6 is controlled to be the minimum web advancement speed immediately after cutting the web 6 and the web advancement speed is resumed to be the maximum web advancement speed after reaching a required pitch between the obtained label sheet 2 and the successive label sheet (which still needs to be obtained by cutting) .
  • the control of the web advancement speed allows to compensate for the pitch between successive articles 3.
  • the obtained label sheet 2 is further advanced by drum 22', in particular while being retained on the outer lateral surface of drum 22' from cutting station 12 to transfer station 23.
  • apparatus 1' does not comprise a glue application unit 30' or the glue application unit 30' is inactive, the operation is similar with the only difference of not performing a step of applying a pattern of glue.
  • number 1'' indicates as a whole a third embodiment of a labeling apparatus according to the present invention. As apparatus 1'' is similar to apparatus 1, the following description is limited to the differences between them, and using the same references, where possible, for identical or corresponding parts.
  • apparatus 1'' differs from apparatus
  • unit 5 is configured to house web 6 having base layer 65 and label sheets removably attached to base layer 65.
  • apparatus 1'' differs from apparatus 1 in comprising transfer device 7'' being adapted to detach label sheets 2 from base layer 65 at station 9 and to transfer label sheets 2 to conveyor 4, in particular to transfer label sheets 2 onto articles 3 advancing along path PA at station 9.
  • transfer device 7'' comprises a separator member 66 being adapted to detach label sheets
  • member 66 has a wedge- like portion 67 extending to station 9 and being configured to contact an inner side of base layer 65 opposite to the outer side of base layer 65 carrying label sheets 2.
  • Apparatus 1'' further differs from apparatus 1 in that conveying means 8 are not only configured to advance web 6 to device 7'', in particular to separator member 66, even more particular to station 9, but to also advance base layer 65 along a base layer path PB from device 7'', in particular member 66, even more particular from station 9 at least towards a disposal station 68, at which base layer 65 is prepared for disposal or recycling or at which it is directly disposed of.
  • conveying means 8 are not only configured to advance web 6 to device 7'', in particular to separator member 66, even more particular to station 9, but to also advance base layer 65 along a base layer path PB from device 7'', in particular member 66, even more particular from station 9 at least towards a disposal station 68, at which base layer 65 is prepared for disposal or recycling or at which it is directly disposed of.
  • conveyor 37 has an extension along axis F being larger than the extension of conveyor 35 along axis E.
  • operative branch 48 of conveyor 37 is configured to advance base layer 65.
  • apparatus 1'' also comprises a discharge unit 69 arranged at station 68 for receiving base layer 65.
  • Discharge unit 69 comprises a reel 70 adapted to rotate around a respective central axis L and to wind up base layer 65.
  • apparatus 1'' in particular conveyor means 8 also comprise an additional buffer unit 71 interposed between conveyor 37 and discharge unit 69.
  • apparatus 1'' is similar to the function of apparatus 1. In the following, only the differences between the functions of apparatuses 1" .
  • Web 6 is advanced by conveying means 8 along path PW from unit 5 to device 7'', in particular to member 66, even more particular to station 9.
  • label sheets 2 are detached by device 7'', in particular separator member 66 from baser layer 65 and are transferred, in particular applied onto articles 3 advancing along path PA.
  • Base layer 65 is then advanced along path PB to disposal station 68.
  • web 6 is advanced by conveying means 8 to device 7'', in particular to separator member 66, even more particular to end station 9 at a varying web advancement speed so as to compensate for the pitch between successive articles 3.
  • web 6 is advanced along portion PW1 by operative branch 36, in particular being advanced at a substantially constant web advancement speed.
  • Web 6 is also advanced along portion PW2 by operative branch 38 to end station 9, in particular at a varying web advancement speed.
  • Web 6 is also advanced along portion PW3 by further operative branch 47.
  • base layer 65 is advanced by operative branch 48 towards disposal station 68, in particular through buffer unit 71 to disposal unit 69.
  • conveyor 37 works preferably at a varying working speed, base layer 65 is advanced at a varying advancement speed too.
  • conveyor 37 operates at a constant working speed.
  • number ⁇ ' ' ' indicates as a whole a variation of apparatus 1''; as apparatus 1' ' ' is similar to apparatus 1''', the following description is limited to the differences between them, and using the same references, where possible, for identical or corresponding parts.
  • apparatus 1' ' ' differs from apparatus 1'' in comprising conveying means 8'''.
  • Conveying means 8''' differ from conveying means 8 in comprising a further suction belt conveyor 75 arranged parallel to conveyor 35, in particular such that at least a portion of conveyor 37 is arranged between conveyor 35 and conveyor 75.
  • conveyor 75 is similar to conveyor 35, even more preferentially being identical to conveyor 35.
  • conveyor 75 is arranged downstream of conveyor 37 along base layer path PB. Even more particular, conveyor 75 is interposed between conveyor 37 and disposal unit 69 along path PB.
  • Conveyor 75 comprises at least one operative branch 76 adapted to advance base layer 65 along a respective portion of path PB.
  • operative branch 76 is arranged downstream of operative branch 48 of conveyor 37 and upstream of disposal station 68 along path PB.
  • conveyor 75 is configured to be controlled, in particular by the control unit, to operate at varying working speeds so as to advance base layer 65 at varying advancement speeds.
  • conveyor 37 and conveyor 75 define a buffer device for base layer 65.
  • Conveying means 8''' further comprise an additional sensor element 77, in particular being similar to sensor element 43, being configured to communicate with the control unit .
  • Sensor element 77 is adapted to detect the filling state of the buffer device defined by conveyors 37 and 75.
  • sensor element 77 is adapted to track the position of a loop portion 65a of base layer 65, in a manner similar to sensor element 43 tracking position of loop portion 6c.
  • the control unit is configured to control operation of conveyor 75 in dependence of the information provided by sensor element 77.
  • apparatus 1' ' ' The function of apparatus 1' ' ' is similar to the function of apparatus 1'' . In the following, only the differences between the function of apparatuses 1'' and 1''' are described.
  • base layer 65 is advanced from end station 9 to disposal station 68 by conveyor 37 and conveyor 75.
  • base layer 65 is advanced by operative branch 48 of conveyor 37 from where base layer 65 is transferred onto operative branch 76 of conveyor 75.
  • base layer 65 advances along operative branch 76 to disposal station 68, in particular to disposal unit 69.
  • the work of the operators prior to activation of the operation of apparatus 1, 1', 1'' or 1''' is facilitated as the number of rollers is significantly decreased. This allows to reduce the possibility of errors within the course of web 6 prior to activation of the labeling process. As well, it allows to speed-up the splicing process itself. Furthermore, the task does not require operators being highly trained as needed in the case of labeling apparatuses as known in the state-of-the-art.
  • the web advancement speed can be varied in a quick and simple manner by simply controlling the working speed of the second suction belt conveyor 37.
  • this permits to provide for a transfer device 7 having a transfer drum 22 without transition sections, but to only have a plurality of retaining sections 27 which are delimited by transfer pads 28a and 28b. This leads to the transfer drum being less sensitive to contaminations. This is further improved by providing for voids 29 which allow for accumulation of contaminations within themselves.
  • suction belt conveyors allows to provide for a transfer device 1 having drum 22' .
  • the cutting can be performed while the web 6 is already in contact with drum 22' and gluing operation can be performed prior to cutting the web 6 at the cutting station 12. This leads again to a reduction of the sensitivity to contaminations of drum 22' .
  • An additional advantage lies in the fact that the appearance of tracking errors of web 6 during advancement along web path 6 is reduced with respect to the known labeling apparatuses.
  • An even additional advantage is that the number of components of the labeling apparatus according to the present invention being in contact with a side having the glue of a pre-glued web of labeling material is significantly reduced. This allows to reduce the overall downtime of the labeling apparatus, as less parts need to be thoroughly cleaned.
  • conveying means 8 could comprise further suction belt conveyors.
  • the conveyor unit of cutting unit 11 could comprise a suction belt conveyor instead of cutting drum 21.
  • the suction belt conveyor could have an operative branch, which, in particular is operated at a respective varying advancement speed.
  • separator member 66 is replaced by a separator assembly.
  • a separator assembly may comprise a rotatable detachment drum adapted to detach label sheets 2 from base layer 65 at end station 9, in particular by means of suction; the detachment drum being further adapted to retain label sheets 2 during advancement of label sheets 2 from end station to an application station at which label sheets 2 are transferred to carousel 5, in particular applied onto articles 3.

Landscapes

  • Labeling Devices (AREA)

Abstract

Appareil d'étiquetage (1, 1', 1'', 1'''') destiné à transférer des feuilles d'étiquettes (2) jusqu'à un transporteur (4) faisant avancer des articles (3) et procédé de fonctionnement d'un tel appareil d'étiquetage. L'appareil d'étiquetage comprend une unité de chargeur (5) pour une bande de matériau d'étiquetage (6), un dispositif de transfert (7, 7'') d'étiquettes conçu pour transférer des feuilles d'étiquettes uniques (2) jusqu'au transporteur (4), un moyen de transport (8, 8''') conçu pour transporter la bande de matériau d'étiquetage (6) le long d'un chemin de bande (PW). Le moyen de transport (8) comprend au moins un premier transporteur à bande à aspiration (35) et un second transporteur à bande à aspiration (37) dont chacun comprend au moins une branche active respective (36, 38), chaque branche active étant conçue pour transporter la bande de matériau de marquage (6) le long d'une partie respective (PW1, PW2) du chemin de bande (PW).
PCT/EP2016/077560 2016-11-14 2016-11-14 Appareil d'étiquetage et procédé de fonctionnement d'un tel appareil d'étiquetage WO2018086712A1 (fr)

Priority Applications (2)

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PCT/EP2016/077560 WO2018086712A1 (fr) 2016-11-14 2016-11-14 Appareil d'étiquetage et procédé de fonctionnement d'un tel appareil d'étiquetage
EP16801400.9A EP3538443A1 (fr) 2016-11-14 2016-11-14 Appareil d'étiquetage et procédé de fonctionnement d'un tel appareil d'étiquetage

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Cited By (8)

* Cited by examiner, † Cited by third party
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IT201800007741A1 (it) * 2018-08-01 2020-02-01 Sidel Participations Sas Metodo e macchina etichettatrice per applicare etichette
IT201800007745A1 (it) * 2018-08-01 2020-02-01 Sidel Participations Sas Macchina etichettatrice e metodo per applicare etichette
EP3939900A1 (fr) * 2020-07-15 2022-01-19 Sidel Participations Machine de préparation d'étiquettes, appareil d'étiquetage comprenant une machine de préparation d'étiquettes, procédé de préparation d'étiquettes et procédé d'application de feuilles d'étiquette unique sur des réceptacles
EP3960645A1 (fr) * 2020-08-28 2022-03-02 Sidel Participations Procédé d'étiquetage pour emballer un produit versable avec une plus grande précision d'étiquetage, et machine pour réaliser le procédé d'étiquetage
EP3992095A1 (fr) * 2020-10-30 2022-05-04 Sidel Participations Machine d'étiquetage et procédé pour appliquer des étiquettes sur des articles conçus pour contenir un produit versable
WO2022144693A1 (fr) * 2020-12-30 2022-07-07 Z - Italia S.R.L. Machine d'étiquetage dotée d'un système d'application d'étiquettes pour le recyclage du récipient
EP4219102A1 (fr) * 2022-02-01 2023-08-02 Sidel Participations Module d'étiquetage pour appliquer des étiquettes obtenues à partir d'une bande de matériau d'étiquetage sur des articles conçu pour contenir un produit versable
WO2024032993A1 (fr) * 2022-08-12 2024-02-15 Sidel Participations Module d'étiquetage avec système de correction

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DE19842585A1 (de) * 1998-09-17 2000-03-23 Armin Steuer Speichereinrichtung und ihre Verwendung
WO2001087749A2 (fr) * 2000-05-16 2001-11-22 Lemo Maschinenbau Gmbh Machine de traitement d"une bande de materiau de maniere cadencee
DE102010037285A1 (de) * 2010-09-02 2012-03-08 Krones Aktiengesellschaft Einrichtung und Verfahren zum Fördern eines Etikettenbands sowie Etikettieraggregat

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DE4311129A1 (de) * 1993-04-05 1994-10-06 Alfill Getraenketechnik Verfahren und Vorrichtung zum Fördern einer Materialbahn
DE19842585A1 (de) * 1998-09-17 2000-03-23 Armin Steuer Speichereinrichtung und ihre Verwendung
WO2001087749A2 (fr) * 2000-05-16 2001-11-22 Lemo Maschinenbau Gmbh Machine de traitement d"une bande de materiau de maniere cadencee
DE102010037285A1 (de) * 2010-09-02 2012-03-08 Krones Aktiengesellschaft Einrichtung und Verfahren zum Fördern eines Etikettenbands sowie Etikettieraggregat

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11518568B2 (en) 2018-08-01 2022-12-06 Sidel Participations Labelling machine and method for applying labels
IT201800007745A1 (it) * 2018-08-01 2020-02-01 Sidel Participations Sas Macchina etichettatrice e metodo per applicare etichette
EP3604149A1 (fr) * 2018-08-01 2020-02-05 Sidel Participations Machine d'étiquetage et procédé pour appliquer des étiquettes
WO2020025333A1 (fr) * 2018-08-01 2020-02-06 Sidel Participations Procédé et machine d'étiquetage permettant l'application d'étiquettes
CN110789801A (zh) * 2018-08-01 2020-02-14 西得乐股份公司 用于将标签涂敷到容器上的贴标机和方法
IT201800007741A1 (it) * 2018-08-01 2020-02-01 Sidel Participations Sas Metodo e macchina etichettatrice per applicare etichette
CN110789801B (zh) * 2018-08-01 2023-11-14 西得乐股份公司 用于将标签涂敷到容器上的贴标机和方法
EP3939900A1 (fr) * 2020-07-15 2022-01-19 Sidel Participations Machine de préparation d'étiquettes, appareil d'étiquetage comprenant une machine de préparation d'étiquettes, procédé de préparation d'étiquettes et procédé d'application de feuilles d'étiquette unique sur des réceptacles
EP3960645A1 (fr) * 2020-08-28 2022-03-02 Sidel Participations Procédé d'étiquetage pour emballer un produit versable avec une plus grande précision d'étiquetage, et machine pour réaliser le procédé d'étiquetage
WO2022089826A1 (fr) * 2020-10-30 2022-05-05 Sidel Participations Machine d'étiquetage et procédé d'application d'étiquettes sur des articles conçus pour contenir un produit coulant
EP3992095A1 (fr) * 2020-10-30 2022-05-04 Sidel Participations Machine d'étiquetage et procédé pour appliquer des étiquettes sur des articles conçus pour contenir un produit versable
WO2022144693A1 (fr) * 2020-12-30 2022-07-07 Z - Italia S.R.L. Machine d'étiquetage dotée d'un système d'application d'étiquettes pour le recyclage du récipient
EP4219102A1 (fr) * 2022-02-01 2023-08-02 Sidel Participations Module d'étiquetage pour appliquer des étiquettes obtenues à partir d'une bande de matériau d'étiquetage sur des articles conçu pour contenir un produit versable
WO2023147914A1 (fr) * 2022-02-01 2023-08-10 Sidel Participations Module d'étiquetage pour appliquer des étiquettes obtenues à partir d'une bande de matériau d'étiquetage sur des articles conçus pour contenir un produit pouvant être versé
WO2024032993A1 (fr) * 2022-08-12 2024-02-15 Sidel Participations Module d'étiquetage avec système de correction

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