WO2024114913A1 - Dispositif tampon avec suiveur de came double pour transitoires - Google Patents

Dispositif tampon avec suiveur de came double pour transitoires Download PDF

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Publication number
WO2024114913A1
WO2024114913A1 PCT/EP2022/084064 EP2022084064W WO2024114913A1 WO 2024114913 A1 WO2024114913 A1 WO 2024114913A1 EP 2022084064 W EP2022084064 W EP 2022084064W WO 2024114913 A1 WO2024114913 A1 WO 2024114913A1
Authority
WO
WIPO (PCT)
Prior art keywords
pad
support structure
pad device
transfer drum
retracted position
Prior art date
Application number
PCT/EP2022/084064
Other languages
English (en)
Inventor
Alberto Bianchi
Roberto SILINGARDI
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/EP2022/084064 priority Critical patent/WO2024114913A1/fr
Priority to PCT/EP2023/072181 priority patent/WO2024114957A1/fr
Publication of WO2024114913A1 publication Critical patent/WO2024114913A1/fr

Links

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

Definitions

  • PAD DEVICE WITH DOUBLE CAM FOLLOWER FOR TRANSIENTS TECHNICAL FIELD Present invention is related to a pad device for a label transfer drum of a labelling machine, to a transfer drum comprising the pad device, and to a labelling machine comprising the transfer drum.
  • the labelling machine comprises a feed roller for feeding a web of labelling material with a speeding speed.
  • the labelling machine comprises a cutting unit for cutting sequentially the web being fed, so that the cut labels are sequentially released at a receiving station to respective sectors of a transfer drum.
  • the transfer drum comprises a plurality of sectors which are angularly distributed around an axis of the drum.
  • the transfer drum is configured so that, by means of rotating around the axis, the sectors receive sequentially the labels at a receiving station, transfer sequentially the received labels through a gluing station, where glue is spread sequentially on respective leading end portions and trailing end portions of the labels being transferred, and, at an application station, apply sequentially the transferred labels on respective containers.
  • the Labelling machine comprises a gluing unit, for spreading glue at the gluing station. Glue is spread sequentially on respective leading end portions and trailing end portions of labels being transferred.
  • the labelling machine comprises a conveyor for conveying containers. The labelling machine is configured so that the containers are labelled while being conveyed by the conveyor.
  • Each sector comprises a respective leading pad device, which comprises a leading pad, which is configured for supporting a leading end portion of the label.
  • Each sector comprises a trailing pad device, which comprises a trailing pad, which is configured for supporting a trailing end portion of the label.
  • Each pad device comprises a fixed frame, which is fixed to the transfer drum.
  • the pad device comprises a pad which is configured for supporting the label end portion, and which can adopt a retracted position and an extracted position. The pad is radially more recessed in the retracted position than in the extracted position.
  • the pad device comprises a cam follower, which is configured for interacting with a cam surface.
  • the transfer drum comprises the cam surface.
  • the cam surface is positioned so that, by means of interaction with the cam follower, the movement is caused at the application station, to improve the application of the label on the respective container.
  • the transfer drum is configured so that, by means of the pad adopting the retracted position at the gluing station, glue is spread on the respective label end portion. It is known in the field a start-up condition of the labelling machine, during which condition the cutting unit and the transfer drum are started and rotate through their respective transients, while the feed roller is held still and, therefore, the web is not fed. In such condition, it is necessary to avoid the spread of glue onto the pads, since they do not still carry any labelling material thereon. It is also known in the field the eventuality of missing containers (i.e.
  • a known solution entails a movement of the gluing unit from an operative position, in which it is radially closer to the transfer drum for spreading glue, to a rest position, in which it is radially further away from the transfer drum, so as to be spaced from the pads transiting at the gluing station.
  • such solution is rather cumbersome as it requires complicated mechanisms and control systems for displacing the glue roller at the correct instants.
  • a pad device is configured for managing missing containers or transient of the labelling machine with less structural complexity and with a save of energy.
  • a transfer drum according to present description or according to any of the appended drum claims comprises a pad device according to present description or according to any of the appended device claims.
  • a labelling machine according to present description or according to any of the appended machine claims comprises a transfer drum according to present description or according to any of the appended drum claims. The following detailed description is referred to possible respective example embodiments of a pad device according to present description, of a transfer drum according to present description, and of a labelling machine according to present description.
  • Figure 1 is a schematic top view of the machine, with parts removed for clarity
  • Figure 2 is a larger-scale, perspective view, with parts removed for clarity, of the transfer drum with a single sector mounted thereon
  • Figures 3 to 6 are larger-scale, partially sectioned side views of the pad device, during distinct time instants
  • Figures 7 to 9 are larger-scale top views, with parts removed for clarity, of parts of the machine, during the time instants of Figures from 4 to 6, respectively.
  • the labelling machine 1 comprises a feed roller 10 for feeding a web 4 of labelling material with a speeding speed.
  • the labelling machine 1 comprises a cutting unit 12 for cutting sequentially the web 4 being fed, so that the cut labels are sequentially released at a receiving station R.
  • the cut labels are released to respective sectors 15 of a transfer drum 13.
  • the transfer drum 13 comprises a plurality of sectors 15 which are angularly distributed around an axis Y of the drum 13.
  • the transfer drum 13 is configured so that, by means of rotating around the axis Y, the sectors 15 receives sequentially the labels 3 at the receiving station R.
  • the transfer drum 13 is configured so that, by means of rotating around the axis Y, the sectors 15 transfer sequentially the received labels 3 through a gluing station G, where glue is spread sequentially on respective leading end portions and trailing end portions of the labels 3 being transferred.
  • the transfer drum 13 is configured so that, by means of rotating around the axis Y, the sectors 15 apply sequentially, at an application station A, the transferred labels on respective containers 2.
  • Labelling machine 1 comprises a gluing unit 14, for spreading glue at the gluing station G. Glue is spread sequentially on respective leading end portions 3a and trailing end portions 3b of labels 3 being transferred.
  • the labelling machine 1 comprises a conveyor 6 for conveying containers 2.
  • the labelling machine 1 is configured so that the containers are labelled while being conveyed by the conveyor 6.
  • the containers 2 can be bottles, flacon, jars, or any other kind of containers 2.
  • the containers 2 can be configured for containing a pourable product, like a food product, a product for home care or a product for personal care.
  • Each sector 15 comprises a respective leading pad device 16, which comprises a leading pad 16a.
  • the leading pad 16a is configured for supporting a leading end portion 3a of the label.
  • Each sector 15 comprises a respective trailing pad device 17, which comprises a trailing pad 17a.
  • the trailing pad 17a is configured for supporting a trailing end portion 3b of the label.
  • the transfer drum 13 comprises a suction system which is configured so that each pad can support the respective portion by means of suction. Therefore, each pad can be considered a vacuum pad, and the drum 13 can be considered a vacuum drum.
  • a pad device 16 which can be a leading pad device or a trailing pad device.
  • Each pad device of each sector can have one or more of, or all the features described below.
  • the pad device 16 comprises a fixed frame 20, which is fixed to the transfer drum 13.
  • the pad device 16 comprises a pad support structure 21, which is mounted to the fixed frame 20 in a movable manner.
  • the pad 16a is integral with the pad support structure 21.
  • the pad 16a is being configured for supporting a label end portion 3a.
  • the support structure 21 is radially movable with respect to the frame 20, between a first retracted position, a second retracted position, and an extracted position.
  • the first retracted position is shown in Figure 3.
  • the second retracted position is shown in Figure 6.
  • the extracted position is shown in Figure 4.
  • the pad 16a is radially more recessed in the first retracted position than in the extracted position. This means that the radial height of the pad 16a is smaller in the first retracted position than in the extracted position.
  • the pad 16a is radially more recessed in the second retracted position than in the first retracted position.This means that the radial height of the pad 16a is smaller in the second retracted position than in the first retracted position.
  • the device 16 comprises an abutment member 28, which is radially movable with respect to the frame 20, between a first radial position and a second radial position.
  • the device 16 comprises elastic means 24.
  • the elastic means 24 are operatively interposed between the fixed frame 20 and the pad support structure 21.
  • the elastic means 24 are configured for biasing the pad support structure 21 against the abutment member 28, so that the first radial position of the abutment member 28 defines the first retracted position, and the second radial position of the abutment member 28 defines the second retracted position of the support structure 21.
  • the abutment member 28 adopts the first radial position.
  • the transfer drum 13 can be configured so that, by means of the pad 16a adopting the first retracted position at the gluing station G, glue is spread on the supported end portion 3a.
  • the transfer drum 13 can be also configured so that, by means of the pad 16a adopting the second retracted position at the gluing station G, glue is not spread on the pad 16a or on the supported end portion 3a.
  • glue is spread on the end portion 3a supported by the pad 16a, because the abutment member 28 is adopting the first radial position, and therefore the pad 16a is adopting the first retracted position.
  • the transfer drum enables a simplification of the management of situations in which there is a gap of container in the conveyor 6.
  • glue is spread on the pad 16a, if there is no web being fed, or, in the second case, one can avoid that glue is spread on a label which will not be applied on any container, to avoid possible problems in discarding the not used label.
  • the pad device 16 further comprises a switch mechanism 29.
  • the switch mechanism 29 is mounted to the fixed frame 20 and is mechanically coupled to the abutment member 28.
  • the switch mechanism 29 is activatable to switch the arrangement of the abutment member 28 between the first radial position and the second radial position. Therefore, the switch mechanism 29 is activable to switch the support structure 21, and therefore also the pad 16a, between the first retracted position and the second retracted position.
  • the elastic means 24 are configured so that the switching of the abutment member 28 corresponds to the switching of the support structure 21, and therefore also to the switching of the pad 16a.
  • the support structure 21 can perform a first movement, with respect to the frame 20 and against the elastic means 24, to move between the first retracted position and the extracted position.
  • the first movement can start in the situation of Figure 3 and can end in the situation of Figure 4.
  • Figure 7 shows a situation corresponding to Figure 4.
  • the pad support structure 21 is configured to perform a second movement, with respect to the frame 20 and against the elastic means 24, to activate the switch mechanism 29, so that the support structure 21, following and/or by means of the activation of the switching mechanism 29, moves from the first retracted position to the second retracted position.
  • the second movement starts in the situation of Figure 3 and ends in the situation of Figure 5.
  • Figure 8 shows an instant corresponding to situation of Figure 5.
  • Figure 6 shows the situation which is produced thanks to the second movement.
  • Figures 6 shows that glue is not applied on the pad 16a if the abutment member 28 adopts the second retracted position.
  • the pad support structure 21 is configured to perform a third movement, with respect to the frame 20 and against the elastic means 24, to activate the switch mechanism 29, so that the support structure 21, following and/or by means of the activation of the switching mechanism 29, moves from the second retracted position to the first retracted position.
  • the third movement is to be carried out when the pad 16a is to be brought back in the normal retracted position, that is the first one, for applying glue on the respective label end portion, in following cycle.
  • Support structure 20 comprises a radially front wall 25, which defines an abutting wall for abutting against the abutment member 28.
  • Support structure 21 comprises a radially rear wall 26.
  • the pad device 16 is configured so that the rear wall 26 mechanically contacts the switch mechanism 29 by means of the second movement, to activate the switch mechanism 29.
  • the pad device 16 is configured so that the rear wall 26 does not mechanically contact the switch mechanism 29 by means of the first movement, and therefore does not activate the switch mechanism 29 by means of the first movement. Therefore, the support structure 21 is used both for extracting the pad 16 for the application of the label, and for switching the radial position of the abutment member 28. In this way, compactness is improved. Therefore, the pad device 16 allows to provide a more adaptable transfer drum with a simple mechanical configuration.
  • the pad support structure 21 includes a connection element 27, which structurally connects the rear wall 26 and the front wall 25.
  • the elastic means 24 act between the connection element 27 and the frame 20.
  • connection element 27 can comprise one or more rods or one or more bars or one or more beams. Each rod extends radially.
  • having the elastic means 24 acting on the connection element 27 reduces the interference of the movements on the same elastic action.
  • the type of connecting element 27 improves the stability of the first movement and of the second movement.
  • the abutment member 28 and the switch mechanism 29 are radially positioned between the rear wall 26 and the front wall 25.
  • the front wall 25 integrally carries the pad 16a and is radially interposed between the pad 16a and the abutment member 28.
  • the radial stroke of the second movement is bigger than the radial stroke of the first movement, and the difference between the movements is such that, by means of the second movement, the rear wall 26 does not mechanically contact the switch mechanism 29.
  • the mechanical complexity of a possible actuator for generating the movements can be reduced, as the first movement and the second movement are substantially of the same type and differ only for the value of the stroke.
  • the first movement and the second movement are parallel with respect to each other.
  • the first movement and the second movement are oriented along the radial direction.
  • the pad device 16 comprises a first cam follower 22 which is integral with the support structure 21 and is configured for interacting with a first cam surface 23a, to cause said first movement.
  • the pad device 16 comprises a second cam follower 31 which is integral with the support structure 21 and is configured for interacting with a second cam surface 31, to cause said second movement. In this way the mechanical complexity of the pad device is reduced.
  • the rear wall 26 is radially positioned between the cam follower 22 or 31 and the switching mechanism 29. In this way the radial extension of the pad device 16 is configured for making easier the interaction with the sub mentioned actuator.
  • the transfer drum 13 comprises said first cam surface 23a and said second cam surface 31.
  • the transfer drum 13 is configured for defining a not operative condition of the second cam surface 31, in which the second cam surface 31 cannot interact with the second cam follower 30, and an operative condition of the second cam surface 31, in which the second cam surface 31 can interact with the second cam follower 30.
  • the second cam surface 31, in Figure 8 adopts the operative condition.
  • the fixed first cam surface 23a is positioned so that, by means of interaction with the first cam follower 22, the pad 16a adopts the extracted position at the application station A, as shown in Figures 7 and 4.
  • the second cam surface 31, in the operative condition is positioned in a first location, which is downstream of the application station A and upstream of the receiving station R, according to direction of rotation of transfer drum 13.
  • the second cam surface 31 adopts the operative condition and is positioned downstream of the application station A and upstream of the receiving station R, according to direction of rotation of transfer drum 13.
  • the support structure 21 adopts the second retracted position when reaching the gluing station G
  • the support structure 20 can be switched in the first retracted position before reaching the receiving station R, by means of interaction with the same second cam surface 31, to receive the respective label 3.
  • the second cam surface 31 can alternatively be positioned at a second location, which is downstream of the receiving station R and upstream of the gluing station G, according to the direction of rotation of drum 13.
  • This latter position is in particular useful for managing situations in which there is a gap in the conveyor 6.
  • the corresponding sector 15 of the drum 13, which would have applied the label on the missing container 2 receives the label in the normal way at the receiving station R, so that the label can be discarded in a correct way.
  • the second cam surface 31 is positioned at this alternative second location, another second cam surface 31 would be required, which would be positioned at the above first location, because, if in the following cycle the same sector 15 needs to apply a label, the switching mechanism 29 shall be activated another time before reaching again the receiving station R.
  • the machine 1 can comprise an automatic control system by means of which condition of the second cam surface 31 can be automatically controlled as a function of the speeding speed or as a function of at least one missing container in the conveyor 6.
  • the second cam surface 31 can be set in the operative condition if the feeding speed is zero or is below a threshold. This allows a quicker and better management of situations in which there is a reduced or zero feeding speed, or situations in which there are missing containers.
  • abutment member 28 being movable, thanks to the presence of switch mechanism 19 and in particular thanks to the selectively activatable second cam surface 31, an automatic, simple, cost- effective and easily retrofittable system for avoiding the spread of glue onto pads 16a and 17a is provided.
  • a label transfer drum 13 or a labelling machine 1 which is configured to be less subject to wear and/or to get dirty during different phases of the production, with a simple structural configuration, because pad supporting structure 21 can be used both for moving pad 16a at the application station A and for retracting pad 16a in case of need.
  • the drum 13 can also comprise an actuation device 32 for setting the condition of the second cam surface 31.
  • This actuation device 32 can be electric, electromagnetic, hydraulic, or pneumatic, or can comprise a motor of any nature.
  • the drum 13 can comprise a first body 23 defining the first cam surface 23a.
  • the drum 13 can comprise a second body 310 defining the second cam surface 31.
  • the actuation device can act on the second body to change the condition of the second cam surface 31.
  • the conveyor 6 can be a carousel rotating around an axis X of the carousel.
  • the machine 1 can comprise one or more unwinding rollers 11, a feeding reel 5 and a support shaft 8 on which the reel 5 is at least partially wound.
  • Each sector 15 can comprise an intermediate section 18 which is interposed between leading pad device 16 and trailing pad device 17, so that the label 3 is transported with leading end portion supported by the leading pad 16a of the leading pad device 16, the trailing end portion 3b is supported by trailing pad 17a of trailing pad device 17, and the intermediate section 18 is covered by another part of the label 3.
  • Each sector 15 can comprise a pre-pad section 19 which is configured for providing an initial sliding of web 4, while the transfer drum 13 is receiving the label.
  • the switching mechanism 29 can be a pen click mechanism.
  • the pad device is a pad device with double cam follower.

Landscapes

  • Labeling Devices (AREA)

Abstract

L'invention concerne un dispositif tampon (16 ; 17) d'un tambour de transfert d'étiquette (13) pour une machine d'étiquetage (1), la machine d'étiquetage (1) étant conçue pour étiqueter des récipients (2), le dispositif tampon (16 ; 17) comprenant : un cadre fixe (20) pouvant être fixé au tambour de transfert (13), le tambour de transfert (13) ayant un axe de rotation central (Y) ; une structure de support de tampon (21) montée sur le cadre (20) d'une manière mobile ; un tampon (16a ; 17a) qui est intégré à la structure de support de tampon (21), le tampon (16a ; 17a) étant conçu pour supporter une partie d'extrémité d'étiquette (3a ; 3b), la structure de support (21) étant mobile radialement par rapport au cadre (20) entre une première position rétractée, une seconde position rétractée et une position extraite, le tampon (16a, 17a) étant radialement plus en retrait dans la première position rétractée que dans la position extraite et étant radialement plus en retrait dans la seconde position rétractée que dans la première position rétractée ; un élément de butée (28) qui est mobile radialement par rapport au cadre (20), entre une première position radiale et une seconde position radiale ; et - des moyens élastiques (24) interposés fonctionnellement entre le cadre fixe (20) et la structure de support de tampon (21), pour solliciter la structure de support de tampon (21) contre l'élément de butée (28), de sorte que la première position radiale de l'élément de butée (28) définit la première position rétractée et la seconde position radiale de l'élément de butée (28) définit la seconde position rétractée de la structure de support (21).
PCT/EP2022/084064 2022-12-01 2022-12-01 Dispositif tampon avec suiveur de came double pour transitoires WO2024114913A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/EP2022/084064 WO2024114913A1 (fr) 2022-12-01 2022-12-01 Dispositif tampon avec suiveur de came double pour transitoires
PCT/EP2023/072181 WO2024114957A1 (fr) 2022-12-01 2023-08-10 Dispositif de tampon d'un tambour de transfert d'étiquette, tambour de transfert d'étiquette et machine d'étiquetage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2022/084064 WO2024114913A1 (fr) 2022-12-01 2022-12-01 Dispositif tampon avec suiveur de came double pour transitoires

Publications (1)

Publication Number Publication Date
WO2024114913A1 true WO2024114913A1 (fr) 2024-06-06

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Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/EP2022/084064 WO2024114913A1 (fr) 2022-12-01 2022-12-01 Dispositif tampon avec suiveur de came double pour transitoires
PCT/EP2023/072181 WO2024114957A1 (fr) 2022-12-01 2023-08-10 Dispositif de tampon d'un tambour de transfert d'étiquette, tambour de transfert d'étiquette et machine d'étiquetage

Family Applications After (1)

Application Number Title Priority Date Filing Date
PCT/EP2023/072181 WO2024114957A1 (fr) 2022-12-01 2023-08-10 Dispositif de tampon d'un tambour de transfert d'étiquette, tambour de transfert d'étiquette et machine d'étiquetage

Country Status (1)

Country Link
WO (2) WO2024114913A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4242167A (en) * 1978-10-26 1980-12-30 B & H Manufacturing Company, Inc. Labeling machine
EP3446993A1 (fr) * 2017-08-24 2019-02-27 Sidel Participations Machine d'étiquetage avec tambour de transfert d'étiquettes amélioré
WO2021023509A1 (fr) * 2019-08-08 2021-02-11 Khs Gmbh Tambour à vide pour une unité d'étiquetage, et unité d'étiquetage comprenant un tel tambour à vide
WO2022058088A1 (fr) * 2020-09-21 2022-03-24 Krones Ag Cylindre de transfert sous vide avec circuit de barre d'aspiration

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4242167A (en) * 1978-10-26 1980-12-30 B & H Manufacturing Company, Inc. Labeling machine
EP3446993A1 (fr) * 2017-08-24 2019-02-27 Sidel Participations Machine d'étiquetage avec tambour de transfert d'étiquettes amélioré
WO2021023509A1 (fr) * 2019-08-08 2021-02-11 Khs Gmbh Tambour à vide pour une unité d'étiquetage, et unité d'étiquetage comprenant un tel tambour à vide
WO2022058088A1 (fr) * 2020-09-21 2022-03-24 Krones Ag Cylindre de transfert sous vide avec circuit de barre d'aspiration

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