EP4001140B1 - Unité rotative sous vide pour un groupe d'étiquetage - Google Patents

Unité rotative sous vide pour un groupe d'étiquetage Download PDF

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Publication number
EP4001140B1
EP4001140B1 EP21199300.1A EP21199300A EP4001140B1 EP 4001140 B1 EP4001140 B1 EP 4001140B1 EP 21199300 A EP21199300 A EP 21199300A EP 4001140 B1 EP4001140 B1 EP 4001140B1
Authority
EP
European Patent Office
Prior art keywords
vacuum
rotary unit
unit according
channel
plate
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.)
Active
Application number
EP21199300.1A
Other languages
German (de)
English (en)
Other versions
EP4001140A1 (fr
Inventor
Michael Baumgartner
Soeren Meissner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Krones AG
Original Assignee
Krones AG
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 Krones AG filed Critical Krones AG
Publication of EP4001140A1 publication Critical patent/EP4001140A1/fr
Application granted granted Critical
Publication of EP4001140B1 publication Critical patent/EP4001140B1/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

Definitions

  • the invention relates to a vacuum-supported rotary unit, in particular a vacuum transfer unit or vacuum cylinder unit, for a labeling unit.
  • Vacuum-supported rotary units for labeling units are known to include a rotor assembly that can rotate around itself for transporting labels and a stationary, i.e. non-rotating assembly, for example with a frame and with a storage, a drive and a vacuum supply for the rotor assembly.
  • the rotor assembly is a vacuum cylinder with suction elements distributed circumferentially thereon for vacuum-assisted transfer of labels
  • the stationary assembly includes, for example, a base plate with a substantially annular vacuum distributor for vacuum supply to the individual suction elements.
  • the vacuum distributor is limited to the vacuum cylinder by a sealing plate with supply openings for vacuum supply to the vacuum cylinder.
  • a substantially annular sealing surface with connection openings and vacuum channels to the individual suction elements is formed on the vacuum cylinder.
  • US 2002/005259 A1 and EP 2 610 191 A1 each disclose a rotary unit for a labeling unit according to the preamble of claim 1.
  • the disadvantage here is that the vacuum distributor is only accessible for maintenance work on the sealing surface by removing the vacuum cylinder upwards. This requires its comparatively complex and, from an ergonomic point of view, unfavorable disassembly. In addition, vacuum lines for the vacuum distributor that are connected to the underside of the base plate and run through it must be removed before it can be removed upwards. This is also disadvantageous from an ergonomic point of view.
  • sealing plate of the vacuum distributor is fully formed, material wear also occurs in those machine angle areas of the vacuum distributor in which the suction elements do not require a vacuum at all.
  • the sealing surfaces sliding on one another also cause a fundamentally undesirable heat input into the vacuum cylinder.
  • the task is solved with a rotary unit, in particular a vacuum cylinder unit, according to claim 1.
  • the rotary unit/vacuum cylinder unit is suitable for a labeling unit for labeling containers and therefore comprises a rotor assembly that can rotate around itself, in particular a vacuum cylinder; a stationary (non-rotating) base plate for supporting the rotor assembly; and a vacuum distributor attached to the base plate with a vacuum channel running along a circular path, which is delimited towards the rotor assembly by a sealing plate with supply openings formed therein for supplying vacuum to the rotor assembly.
  • the vacuum distributor comprises a support plate for receiving the vacuum channel, the support plate and the vacuum channel being designed as partially circumferential circular ring segments and the support plate being releasably attached to the base plate from below and the vacuum channel protruding upwards through a recess formed in the base plate.
  • the vacuum distributor can therefore be removed as a whole, i.e. with the support plate and the vacuum channel sitting on it, from the base plate downwards.
  • the rotor assembly/vacuum cylinder located above therefore does not need to be removed for maintenance of the vacuum distributor.
  • the only partial extent of the vacuum channel reduces both the material wear of the sealing surfaces sliding on one another as a whole and the resulting heat input into the rotor assembly/vacuum cylinder compared to a full extent.
  • the machine angle area of the base plate which is not penetrated by the built-in vacuum distributor, can be used for fastening and torque support for supporting and driving the rotor assembly/vacuum cylinder. This enables a structurally simple and compact rotary unit/vacuum cylinder unit.
  • the vacuum distributor with carrier and vacuum channel partially extend over a machine angle of at most 300° and in particular at most 270°.
  • the rotary unit/vacuum cylinder is then preferably part of a labeling unit/labeling machine for labeling containers.
  • the vacuum cylinder unit 1 comprises a vacuum cylinder 2 which can rotate around itself in a manner known in principle and a stationary, i.e. non-rotating base plate 3, which carries the vacuum cylinder 2.
  • the base plate 3 is penetrated by a vacuum distributor 4, which is detachably attached to the base plate 3 from below and can be dismantled downwards.
  • the vacuum cylinder unit 1, the vacuum cylinder 2 and the stationary base plate 3 represent vacuum-supported rotary units, rotor assemblies and stationary assemblies / lower parts of labeling units / labeling machines in general, provided that these can be equipped with the disclosed vacuum distributor 4.
  • the vacuum distributor 4 comprises a support plate 5 and a vacuum channel 6 located on its top.
  • the vacuum channel 6 comprises, for example, a profile with a U-shaped cross section and is delimited on its upper side by a sealing plate 7, in which supply openings 8 for vacuum supply to the vacuum cylinder 2 are formed.
  • the vacuum distributor 4 is designed as a partially circumferential circular ring segment 4a, which preferably includes a machine angle 4b of at most 300° and in particular at most 270°.
  • the vacuum channel 6 and the sealing plate 7 are preferably connected to one another in a materially bonded manner and in particular are glued to one another.
  • the vacuum channel 6 and/or the sealing plate 7 can, for example, consist of a generatively layered material that can be produced using so-called 3D printing.
  • the vacuum channel 6 preferably comprises separate, partially circumferential segments 6a, 6b, 6c for separate vacuum supply to the suction elements 9 of the vacuum cylinder 2 in individual machine angle areas of the vacuum cylinder unit 1.
  • the vacuum channel extends essentially along a circular path 6d.
  • the segments 6a, 6b, 6c are arranged one behind the other.
  • the vacuum distributor 4 comprises separate vacuum connections 10, for example in the form of nozzles/flanges 10a and releasably connected elbows 10b, which are each vacuum-tight with the vacuum channel 6 or the respective partially circumferential segment 6a, 6b, 6c are connected.
  • the Figures 2 and 4 also show that the support plate 5 is essentially designed as a flat plate.
  • the support plate 5 could also have a U-shaped cross section for receiving the vacuum channel 6 with lateral, essentially axially extending legs and at least one radially extending fastening flange (not shown).
  • the support plate 5 is attached to the base plate 3 with releasable fastening elements 13, which are preferably designed as machine screws.
  • releasable fastening elements 13 are preferably designed as machine screws.
  • other positive fastening elements would also be conceivable, such as clamps, bayonet locks, toggle locks or the like.
  • the fastening elements 13 generally serve to releasably fasten the vacuum distributor 4 to the stationary base plate 3 from below by means of the support plate 5, see the Figures 1 and 4 .
  • the support plate 5 includes a U-profile for receiving the vacuum channel 6 and a side fastening flange, a push-off thread can be formed in this. These are then used to dismantle the vacuum distributor 4 from the base plate 3 downwards by pressing off the fastening flange using threaded bolts or the like screwed into the pressing thread.
  • the vacuum distributor 4 further comprises biasing devices 17 for sealing and resiliently biased pressing of the sealing plate 7 on a corresponding sealing surface 18 (see Figure 4 ) of the vacuum cylinder 2.
  • the biasing devices 17 can include, for example, compression springs 19, gas springs or similar spring elements.
  • limiting screws 20 are provided, with which the state of wear of the sealing plate 7 can be assessed based on the screw-in depth of the limiting screws 20.
  • the vacuum channel 6 is fastened to the support plate 5 by means of the pretensioning devices 17 and the limiting screws 20.
  • the vacuum distributor 4 is preferably part of a vacuum cylinder unit 1, the functioning of which is otherwise known in principle and therefore not explained in detail. Accordingly, in the Figures 1 and 4 only the stationary (non-rotating) base plate 3 of the vacuum cylinder unit 1 and its vacuum cylinder 2 with the suction elements 9 and the rotating sealing surface 18 are provided with reference numbers.
  • the complete vacuum distributor 4 can be detached from the base plate 3 after loosening the fastening means 13 and removed as a whole from the vacuum cylinder unit 1 downwards.
  • the vacuum channel 6 with the sealing plate 7 and the connectors / flanges 10a of the vacuum connections 10 can be removed from the support plate 5 and inspected in a simple manner and, if the sealing plate 7 is worn, if necessary in the sense of a Wear assembly must be replaced.
  • the limiting screws 20 enable a visual check of the state of wear of the installed vacuum distributor 4 in order to be able to dismantle it at a suitable time. This means that wear-related damage due to late replacement of the wear assembly, i.e. the vacuum channel 6 with its sealing plate 7, as well as uneconomical maintenance due to unnecessarily premature replacement of the wear assembly can be avoided.
  • a partial machine angle area 3a of the base plate 3 is not penetrated by the vacuum distributor 4.
  • the base plate 3 therefore has no opening for receiving the vacuum distributor 4. This promotes and simplifies a stable support structure and torque support for the vacuum cylinder 2 on the base plate 3.
  • a recess 3b for the support plate 5 is preferably formed in the base plate 3. This facilitates correct positioning of the vacuum distributor 4 both radially with respect to the axis of rotation of the vacuum cylinder 2 and with regard to its machine angular position on the vacuum cylinder unit 1.
  • the vacuum distributor 4 is particularly suitable for a vacuum cylinder 2 in a labeling unit for labeling containers (not shown). However, it would also be conceivable to integrate the vacuum distributor 4 into another vacuum-supported rotary unit, for example on a pallet carousel with vacuum pallets for transporting labels (not shown) or the like.
  • the directional information refers to the installed state of the vacuum distributor or the operational state of the rotary unit.

Landscapes

  • Labeling Devices (AREA)

Claims (13)

  1. Unité rotative, en particulier unité de cylindre à vide (1), pour une unité d'étiquetage, comprenant : un ensemble rotor pouvant tourner sur lui-même, en particulier un cylindre à vide (2) ; une plaque de base (3) ne tournant pas avec lui et destinée à le supporter ; et un distributeur à vide (4) fixé à la plaque de base et comportant un canal de vide (6) qui s'étend le long d'une trajectoire circulaire (6d) et qui est délimité dans le sens de l'ensemble rotor par une plaque d'étanchéité (7) dans laquelle sont ménagées des ouvertures d'alimentation (8) pour l'alimentation de vide de l'ensemble rotor, caractérisé en ce que le distributeur à vide comprend une plaque de support (5) destinée à recevoir le canal de vide, que la plaque de support et le canal de vide sont réalisés sous forme de segments d'anneau circulaire (4a) et que la plaque de support est fixée de manière amovible par le bas à la plaque de base et que le canal de vide fait alors saillie vers le haut à travers la plaque de base.
  2. Unité rotative circulaire selon la revendication 1, dans laquelle les segments d'anneau circulaire (4a) présentent un angle de machine (4b) d'au plus 300° et en particulier d'au plus 270°.
  3. Unité rotative selon la revendication 1 ou 2, dans laquelle le canal de vide (6) comprend au moins deux segments de canal (6a, 6b, 6c) séparés l'un de l'autre et s'étendant le long de la trajectoire circulaire pour l'alimentation de vide indépendante l'un de l'autre, et la plaque d'étanchéité (7) comprend des ouvertures d'alimentation (8) qui leur correspondent respectivement de manière séparée.
  4. Unité rotative selon l'une des revendications précédentes, dans laquelle un raccord de vide (10), comprenant notamment une tubulure de raccordement (10a), est formé sur le canal de vide (6), en particulier pour chaque segment de canal (6a, 6b, 6c) formé sur celui-ci, et une ouverture (11) correspondante est formée dans la plaque de support (5), à travers laquelle le raccord de vide peut être relié à une conduite d'alimentation de vide externe.
  5. Unité rotative selon la revendication 4, dans laquelle le canal de vide (6) et la plaque d'étanchéité (7) sont réalisés sous la forme d'un ensemble d'usure remplaçable.
  6. Unité rotative selon au moins l'une des revendications précédentes, dans laquelle des taraudages de chasse sont formés sur la plaque de support (5) pour repousser la plaque de support de la plaque de base (3).
  7. Unité rotative selon au moins l'une des revendications précédentes, dans laquelle la plaque d'étanchéité (7) est constituée d'une matière plastique ou d'un métal.
  8. Unité rotative selon au moins l'une des revendications précédentes, dans laquelle la plaque d'étanchéité (7) est reliée au canal de vide (6) par une adhérence de matière et en particulier par collage.
  9. Unité rotative selon au moins l'une des revendications précédentes, dans laquelle le canal de vide (6) et/ou la plaque d'étanchéité (7) sont fabriqués à partir d'un matériau stratifié de manière générative.
  10. Unité rotative selon au moins l'une des revendications précédentes, dans laquelle le canal de vide (6) est monté mobile sur la plaque de support (5) dans le sens de l'ensemble rotor avec une précontrainte d'un ressort et la position axiale de la plaque d'étanchéité (7) par rapport à la plaque de support (5) peut être réglée/contrôlée à travers celle-ci au moyen d'au moins une vis de limitation (20).
  11. Unité rotor selon au moins l'une des revendications précédentes, dans laquelle la plaque de support (5) comprend une section transversale sensiblement en forme de U et au moins une bride de fixation dépassant transversalement de ses branches latérales, qui peut être vissée à la plaque de base (3) par le bas.
  12. Unité rotative selon au moins l'une des revendications précédentes, dans laquelle l'ensemble rotor/cylindre à vide (2) comprend une surface d'étanchéité (18), en particulier annulaire, tournant avec lui, qui est raccordé de manière étanche au vide à la plaque d'étanchéité (7), ne tournant pas avec lui, du distributeur à vide (4), et dans laquelle sont formées des ouvertures de raccordement réparties le long de la trajectoire circulaire pour l'alimentation de vide des éléments d'aspiration (9) répartis sur la circonférence de l'ensemble rotor pour l'aspiration d'étiquettes.
  13. Unité d'étiquetage pour étiqueter des récipients, avec l'unité rotative, en particulier celle de l'unité de cylindre à vide (1), selon au moins l'une des revendications précédentes.
EP21199300.1A 2020-11-20 2021-09-28 Unité rotative sous vide pour un groupe d'étiquetage Active EP4001140B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202020106667.6U DE202020106667U1 (de) 2020-11-20 2020-11-20 Vakuumgestützte Rundläufer-Einheit für ein Etikettieraggregat

Publications (2)

Publication Number Publication Date
EP4001140A1 EP4001140A1 (fr) 2022-05-25
EP4001140B1 true EP4001140B1 (fr) 2023-09-13

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ID=77998810

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21199300.1A Active EP4001140B1 (fr) 2020-11-20 2021-09-28 Unité rotative sous vide pour un groupe d'étiquetage

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EP (1) EP4001140B1 (fr)
CN (1) CN217673761U (fr)
DE (1) DE202020106667U1 (fr)

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2525741A (en) * 1947-05-01 1950-10-10 New Jersey Machine Corp Label activating and applying apparatus
US2773617A (en) 1955-02-23 1956-12-11 Weiss Johann High-speed labeling device
US3864187A (en) 1973-03-29 1975-02-04 Ato Inc Labeling machine
JPS5940249Y2 (ja) 1979-09-14 1984-11-14 澁谷工業株式会社 ラベル貼機
DE69814387T2 (de) * 1998-09-30 2004-04-01 Fameccanica Data S.P.A. Vorrichtung zum Schneiden von Kaschierelementen aus Materialbahnen
CA2253018A1 (fr) * 1998-11-05 2000-05-05 Associpak International Inc. Etiqueteuse
DE102006051898A1 (de) * 2006-10-31 2008-05-08 Khs Ag Vakuumtrommel
IT1393103B1 (it) 2008-02-27 2012-04-11 Shibuya Machinery Co Ltd Etichettatrice
JP5908275B2 (ja) 2011-12-26 2016-04-26 サントリーホールディングス株式会社 ラベル搬送装置
ITTO20111238A1 (it) * 2011-12-29 2013-06-30 Sidel Spa Con Socio Unico Dispositivo distributore di un gruppo tamburo a vuoto per macchine etichettatrici
CN205738453U (zh) 2016-05-13 2016-11-30 广州达意隆包装机械股份有限公司 贴标轮装置

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Publication number Publication date
CN217673761U (zh) 2022-10-28
EP4001140A1 (fr) 2022-05-25
DE202020106667U1 (de) 2022-02-24

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