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WO2018177572A1 - Mécanisme perforateur et procédé de perforation d'un boyau plié à plat - Google Patents

Mécanisme perforateur et procédé de perforation d'un boyau plié à plat Download PDF

Info

Publication number
WO2018177572A1
WO2018177572A1 PCT/EP2017/076725 EP2017076725W WO2018177572A1 WO 2018177572 A1 WO2018177572 A1 WO 2018177572A1 EP 2017076725 W EP2017076725 W EP 2017076725W WO 2018177572 A1 WO2018177572 A1 WO 2018177572A1
Authority
WO
WIPO (PCT)
Prior art keywords
film tube
cutting lines
transverse
perforating
perforations
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.)
Ceased
Application number
PCT/EP2017/076725
Other languages
German (de)
English (en)
Inventor
Thomas Eggl
Florian Lang
Johannes Strauss
Bernd Braatz
Robert Krieger
Martin Kupka
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
Priority to EP17787169.6A priority Critical patent/EP3600803B1/fr
Priority to CN201780089121.XA priority patent/CN110520265B/zh
Publication of WO2018177572A1 publication Critical patent/WO2018177572A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/18—Perforating by slitting, i.e. forming cuts closed at their ends without removal of material
    • B26F1/20—Perforating by slitting, i.e. forming cuts closed at their ends without removal of material with tools carried by a rotating drum or similar support
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
    • B26D3/08—Making a superficial cut in the surface of the work without removal of material, e.g. scoring, incising
    • B26D3/085—On sheet material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/005—Computer numerical control means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/18—Perforating by slitting, i.e. forming cuts closed at their ends without removal of material
    • B26F1/22—Perforating by slitting, i.e. forming cuts closed at their ends without removal of material to form non-rectilinear cuts, e.g. for tabs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D2007/2607—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member for mounting die cutters

Definitions

  • the invention relates to a perforator and a method for perforating a flat-folded film tube.
  • labels can be produced from sheet-like materials by passing the material to be punched between a rotating punching cylinder and an impression cylinder.
  • the processing of multilayer materials is possible, for example, for selective punching of self-adhesive labels on a carrier tape.
  • the stamping of sandwich labels, so-called piggybacks or the like, is known in principle. For this purpose, for example, sheaths are formed with different heights on the punching cylinder.
  • DE 10 201 1076 863 A1, DE 10 2014 216 191 A1 and DE 10 2015 204 821 A1 further discloses the transverse perforation of films, in particular of flat longitudinally folded film tubes, by means of punching cylinders and counter-pressure cylinders. Such perforations serve, for example, the separation of label sleeves for containers by tearing off by means of longitudinal tension.
  • the described perforators are suitable for a continuous transport of film webs with a comparatively high processing speed.
  • transverse perforations could be made in this way.
  • longitudinal perforations require a gradual and correspondingly slow transport of the film webs.
  • a perforating according to claim 1 is suitable for processing a longitudinally folded film tube and comprises a continuous rotatable magnetic cylinder and a counter-pressure cylinder and a magnetically attached to the magnetic cylinder flexible punching sheet with cutting lines for perforation of the film tube. Furthermore, a control for the magnetic cylinder is provided with which the peripheral speed of the cutting lines can be adjusted in the effective range with the impression cylinder to a transport speed of the film tube and outside of the effective range can be changed.
  • the working cycle of the perforating to the transport speed of the film tube and to a predetermined distance between the perforations to be produced with the cutting lines.
  • the film tube is in this case transported at a constant speed through the perforator.
  • the magnetic cylinder rotates continuously, but with variable speed, so that the peripheral speed of the cutting lines varies in a controlled manner between the individual punching operations.
  • control for adapting the peripheral speed is formed outside the effective range as a function of a label length to be produced.
  • tear-off perforations at a distance of a predetermined label length in the film tube can thereby be produced, although the distance between the associated cutting lines on the stamped sheet deviates therefrom.
  • the peripheral speed outside the effective range would be reduced, for example. It then takes correspondingly longer, until the cutting lines come back into the effective range with the impression cylinder. At a constant transport speed, the perforations produced by the cutting lines are then further apart in the longitudinal direction of the film tube. Conversely, this also applies to a reduction of the label length to be produced in each case.
  • the cutting lines extend in a first region of the stamping sheet in the transverse direction and / or longitudinal direction and in particular are so high that only the wall of the film tube facing the stamped sheet is perforated.
  • a pull-tab and / or a tear-open line can be formed, in particular only in the wall of the film tube facing the magnetic cylinder and the stamped sheet, while the wall of the film tube lying behind remains substantially intact.
  • the cutting lines can also be so high that both walls of the film tube are perforated for the production of tear tabs / lines.
  • the cutting lines extend in a second region of the punching plate only in the transverse direction and are in particular at least so high that both superimposed walls of the film tube are perforated over its entire width, with the foil tube laterally delimiting folding edges. This makes it possible to form tear-off perforations for the subsequent singulation of the film tube to label sleeves.
  • the cutting lines may be lower in the first region than the cutting lines in the second region.
  • the cutting lines of the second region weaken the material of the film tube more particularly in its longitudinal direction than the cutting lines of the first region. Consequently, tear-off perforations at longitudinal tension in the film tube produced with the cutting lines of the second region, in particular when singulated to label sleeves, break more readily than the tear tabs and / or tear lines produced with the cutting lines of the first region. The latter remain intact when singling.
  • the cutting lines of the second region produce, for example, larger perforation holes than the cutting lines of the first region and / or a smaller spacing between directly adjacent perforation holes.
  • the perforating further comprises flexible punching plates with different cutting lines, which can alternatively be magnetically attached to the magnetic cylinder for producing different perforation pattern in the film tube.
  • the stamping sheets can be provided comparatively inexpensively as clothing parts for the production of different labels and perforation patterns and replaced when worn.
  • the perforating further comprises flexible stamping plates with different thickness, which can be alternatively attached to the magnetic cylinder magnetically for the perforation of film tubes of different thickness and / or different material.
  • the stamping sheets are then provided in the form of interchangeable clothing parts.
  • the thickness of the stamped sheets then depends, for example, on a predetermined gap between the magnetic cylinder and the impression cylinder and the thickness of the film tube to be perforated.
  • the stated object is also achieved by a method according to claim 7. Accordingly, this is used for perforating a flat-folded film tube, wherein the film tube runs at a particular constant transport speed between at least one impression cylinder and magnetic cylinder with it magnetically fixed punching sheet through and is perforated by formed on the punching sheet cutting lines.
  • peripheral speed of the cutting lines in the effective range with the impression cylinder is adapted to a transport speed of the film tube and changed outside of the effective range on the other hand.
  • the angular velocity of the magnetic cylinder is changed according to the required peripheral speed of the cutting by means of electrical control.
  • the rotational speed of the magnetic cylinder is changed periodically between a first rotational speed for contact of the cutting lines with the film tube and at least a second non-contact rotational speed. This allows the production of similar labels with a certain length and arrangement of the individual perforations on the label with simultaneous continuous transport of the film tube.
  • transverse / longitudinal perforations are selectively produced in the wall of the film tube facing the magnetic cylinder and / or in both superimposed walls of the film tube, in particular for the formation of tear tabs and / or tear lines.
  • both in the transverse direction and in the longitudinal direction that is, for example, obliquely, extending cutting lines are formed, which roll on the film tube to its perforation.
  • Tear tabs and tear lines serve to secure the closure or the like on the finished labeled product, tear-off perforation, however, the separation of the label sleeves.
  • transverse perforations reaching functionally over the entire width of the film tube are produced in both superimposed walls of the film tube, with the gap being laterally delimited by the film tube.
  • This serves to generate predetermined tear lines for the subsequent singulation of the film tube to label sleeves.
  • the separation is then possible with continuous further transport of the film tube by tearing off by means of longitudinal tension over the entire width of the film tube.
  • the folding edges are then not interrupted on the outside by perforation holes or similar punched out.
  • the transverse perforations resist a lower longitudinal tension in the film tube than the transverse / longitudinal perforations.
  • the transverse perforations and the transverse / longitudinal perforations are made on the same magnetic cylinder. There are then formed correspondingly shaped cutting lines for the production of both perforation on one and the same punching plate. This allows a particularly efficient production of tear tabs and singulation perforations, as well as a particularly precise arrangement of the transverse perforations and the transverse / longitudinal perforations to each other.
  • the peripheral speed outside the effective range for positional adjustment of the transverse perforations and / or transverse / longitudinal perforations in the longitudinal direction of the film tube is purposefully reduced or increased. This allows a fast format adaptation of the perforating unit by programmed change of the rotational speed of the magnetic cylinder.
  • the film tube is a shrink tube or an elastic tube for labeling containers.
  • the film tube can be designed for labeling and / or securing the closure of a closure region and / or neck region of a container.
  • the stamped sheet is exchanged for the production of differently perforated label sleeves and / or for perforation of different film tubes.
  • This allows a flexible and economical production of different labels.
  • an exchange of the magnetic cylinder for a format change is not required.
  • different flexible punching plates for format change on the magnetic cylinder can be easily fixed by magnetic force and changed accordingly fast.
  • Figure 1 seen a schematic view of the perforating in the transport direction of the film tube
  • Figure 2 is a schematic side view of the magnetic cylinder and the impression cylinder in the periodic speed change
  • Figure 3 is a schematic plan view of a stamped sheet and thus perforated film tube
  • Figure 4 is a schematic plan view of a stamped sheet and a perforated therewith
  • the perforating unit 1 comprises a magnetic cylinder 2, a counter-pressure cylinder 3 and a flexible punching plate 4 magnetically fixed to the magnetic cylinder 2.
  • the film tube 6 is folded flat in the longitudinal direction and therefore, when passing through the perforating unit 1, has a wall facing the stamped sheet 4 and a wall facing the impression cylinder 3.
  • FIG. 1 further illustrates, at least the magnetic cylinder 2 by means of electric motor 7, which is preferably a servo motor driven.
  • the rotational speed DG, for example in the form of the angular velocity, of the magnetic cylinder 2 can be influenced in a targeted manner by controlling the motor 7 by means of a control 8.
  • the flexible stamped sheet 4 comprises at least a first region 4a in which first cutting lines 5a extend in both the transverse direction Q and in the longitudinal direction L. This is to be understood in particular as meaning that the first cutting lines 5a can also run obliquely, that is to say in a combination of the transverse direction Q and the longitudinal direction L.
  • At least one second region 4b is formed on the flexible stamped sheet 4 with a second cutting line 5b extending only in the transverse direction Q.
  • two second regions 4b with identical second cutting lines 5b are circumferentially uniformly distributed relative to one another on the stamped sheet metal for the production of Abr adoptedperforationen formed in the film tube 6 with identical distances from each other.
  • first regions 4a with identical first cutting lines 5a are also formed on the stamped metal sheet in circumferentially uniform distribution relative to one another for producing tear-open tabs.
  • the first cutting lines 5a could under this condition be arranged arbitrarily on the stamped sheet 4, ie between the second cutting lines 5b.
  • the peripheral speed UGa of the first cutting lines 5a and the peripheral speed UGb of the second cutting lines 5b are substantially identical to the transport speed 6a of the film tube in the effective region with the impression cylinder 3, or in other words, when in contact with the film tube 6 passing through the perforating unit 1 6.
  • the magnetic cylinder then rotates at a first rotational speed DG1.
  • the peripheral speed UGa, UGb of the first cutting lines 5a, 5b, outside the effective area 9, that is, when the first cutting lines 5a, 5b do not contact the film tube 6, can be changed. This is preferably done by deceleration or acceleration of the magnetic cylinder 2 to the second rotational speed DG2.
  • the controller 8 adjusts the rotational speed DG periodically between the first rotational speed DG1 and the second rotational speed DG2. In between, any gradients of the rotational speed DG are possible in principle.
  • a transverse perforation 10b extending through both walls 6b, 6c of the film tube 6 is produced over the entire width of the film tube 6 with the second cutting lines 5b.
  • the height Ha of the first cutting lines 5a in this case is smaller than the height Hb of the second cutting lines 5b.
  • the transverse perforations 10b are used for segmenting the film tube 6 in still hanging label sleeves, which can be torn off, for example, by means of suitable longitudinal tension downstream of the perforating 1 from the film tube 6 successively for labeling containers or the like.
  • the transverse perforations 10b are preferably designed to tear apart at a lower longitudinal tension in the film tube 6 than the transverse / longitudinal perforations 10a for the tear tabs. The latter should tear only when the intended use of the finished labeled product, but not during the separation of the film tube 6 to labels.
  • the rotational speed UGa, UGb of the cutting lines 5a, 5b can be flexibly adjusted by changing the rotational speed DG outside the effective region 9.
  • corresponding periodic rotational speed profiles for the magnetic cylinder 2 can be stored in the controller 8. These can then be retrieved format-dependent for individual label types to be produced.
  • FIG. 3 schematically shows a possible arrangement of the first and second cutting lines 5 a, 5 b in the associated regions 4 a, 4 b of the stamped sheet 4 in the plan view of the stamped sheet 4 developed flat.
  • FIG. 3 also illustrates the positional adaptation of the transverse / longitudinal perforations 10a to one another and the transverse perforations 10b to one another by varying the rotational speed DG. Accordingly, the distances 12b between the transverse perforations 10b specifically deviate from the distances 11b between the cutting lines 5b.
  • the transverse / longitudinal perforations 10a and the transverse perforations 10b in pairs with the punched first rotational speed DG1 and the magnetic cylinder 2 temporarily temporarily braked to the second rotational speed DG.
  • the distance 12b corresponds to a label length after singulation along the transverse perforations 10b.
  • FIG. 4 schematically illustrates a further possible arrangement of first cutting lines 51 a, 52 a and second cutting lines 51 b in associated first regions 41 a and second regions 41 b of a flexible stamping sheet 41 in the flat unwound state.
  • the first cutting lines 51 a, 52 a are preferably formed for a perforation through both walls 6 b, 6 c of the film tube 6.
  • the first cutting lines 51 a, 52 a of a particular punching plate 41 may be formed for different widths and / or long punched out. This is indicated schematically in FIG. In principle, however, it is also possible to form the first cutting lines 51 a, 52 a with different height Ha or with different total thickness of the punching plate 41.
  • an obliquely running in the example transverse / longitudinal perforation 101 a for a tear tab and in the example orthogonally oriented transverse / longitudinal perforation 102 a are generated for a tear line.
  • the tear line is designed to tear open the finished labeled product substantially in the transverse direction Q.
  • the tear-open line differs from the tear-off perforation, ie the transverse perforation 101b, essentially in that it is designed for successive tearing along the transverse / longitudinal perforation 102a.
  • tear lines could also be skewed.
  • the second cutting lines 51 b of the punching plate 41 are also formed for a perforation through both walls 6 b, 6 c of the film tube 6 and thus for the production of transverse perforations 101 b. These serve as Abr employedperforationen for the separation of the film tube 6 to labels.
  • the cutting lines 51 b, 51 a and 52 a are configured so that the tear-off perforations produced at a lower longitudinal tension in the film tube 6 tear than the generated tear lines and / or tear tabs, so that the tearing lines and / or tear tabs remain intact during singulation.
  • the first cutting lines 51 a, 52 a and the second cutting lines 51 b are formed such that the laterally delimiting folding edges 6 d of the film tube 6 are not perforated on the outside. Nevertheless, the transverse perforations 101 b functionally extend over the entire width of the film tube 6 a proper separation and prevents the other damage to the film tube 6 and / or problems in conveying the perforated film tube 6 in the region of the fold edges 6d.
  • FIG. 4 illustrates the positional adjustment of the transverse / longitudinal perforations 101a, 102a and the transverse perforations 101b by varying the rotational speed DG in analogy to FIG. 3. Accordingly, the distance 121b between the transverse perforations 101b is adjusted by periodically adjusting the rotational speed DG. The distance 121b also corresponds here to a label length after singulation along the transverse perforations 101b.
  • the distance 122b between the transverse perforations 101b and the adjacent transverse / longitudinal perforation 102a is constant since they are connected by the oblique transverse / longitudinal perforation 101a and are punched together at the first rotational speed DG1 corresponding to the transport speed 6a of the film tube 6 ,
  • different stamped sheets 4, 41 can be provided.
  • the punching plates 4, 41 may with regard to the course of the first cutting lines 5a, 51a, 52a and the second cutting lines 5b, 51b and / or with respect to the height of individual cutting lines 5a, 51a, 52a, 5b, 51b and / or the number of similar cutting lines 5a, 51a, 52a, 5b, 51 b per punching plate 4, 41 and / or differ in terms of the thickness of the punching plate 4, 41.
  • Different punching plates 4, 41 can be provided comparatively inexpensively as clothing parts.
  • the attachment to the magnetic cylinder 2 is comparatively simple and precise with a low expenditure on equipment possible.
  • a plurality of known magnet zones are present on the magnet cylinder 2, which hold the stamping plates 4, 41 in each case rotationally fixed with respect to the magnet cylinder 2 and take it with frictional engagement during operation.
  • the perforator 1 can be used, for example, as follows.
  • a film tube 6 folded longitudinally along fold edges 6d is preferably fed by a roller endlessly at a constant transport speed 6a to the perforating unit 1.
  • the magnetic cylinder 2 is driven by motor 7 and control 8 so that the existing on the punching plate 4, 41 cutting lines 5a, 51a, 52a, 5b, 51b in contact with the film tube 6 (in the effective region 9) each have a peripheral speed UGa, UGb have that essentially corresponds to the transport speed 6a of the film tube 6.
  • the cutting lines 5a, 51a, 52a, 5b, 51b then run with the film tube 6 with.
  • 41 are thereby selectively transverse / longitudinal perforations 10a, 101a, 102a generated, which only by a facing wall 6b or by both superimposed Walls 6b, 6c of the film tube 6 extend and / or transverse perforations 10b, 101b, which extend through both superposed walls 6b, 6c of the film tube 6 and thereby functional in particular over the entire width of the film tube 6.
  • the folded edges 6d of the film tube 6 are recessed by perforations or punched holes.
  • the perforation holes or similar punched holes produced may be punctiform, slot-shaped or the like, depending on the shape of the individual cutting edges of the cutting lines 5a, 51a, 52a, 5b, 51b.
  • the controller 8 sets a speed profile which repeats periodically between rotational speeds DG1 and DG2.
  • different speed profiles are stored in the controller 8 for different film formats and label formats.
  • the perforator 1 is therefore suitable for frequent format changes.
  • a comparatively high machine performance is possible with permanently continuous belt transport of the film tube 6.
  • transverse / longitudinal perforations 10a, 101a, 102a and the transverse perforations 10b, 101b are preferably produced together on one and the same magnetic cylinder 2, optionally but also in succession to different magnetic cylinders 2.
  • the perforating 1 can then include, for example, another pair of magnetic cylinder 2 and impression cylinder 3 with associated motor 7.
  • the perforated film tube 6 perforated as described above can then be fed to a labeling unit (not shown) in a manner known per se, which separates the film tube 6 into tearing sleeves by tearing off the transverse perforations 10b, 101b and attaches them to containers (not shown).
  • the film tube 6 may be, for example, a shrink tubing or an elastically stretchable tube which is attached by means of elastic tension on containers.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Making Paper Articles (AREA)

Abstract

L'invention concerne un mécanisme perforateur et un procédé pour perforer un boyau plié à plat. Le mécanisme perforateur selon l'invention comprend un cylindre magnétique et un cylindre de contre-pression pouvant tourner en continu ainsi qu'une tôle à estamper flexible fixée magnétiquement au cylindre magnétique, pourvue de lignes de coupe servant à la perforation du boyau. Du fait de la présence supplémentaire d'une commande pour le cylindre magnétique, laquelle permet d'adapter la vitesse circonférentielle des lignes de coupe dans la zone active comprenant le cylindre de contre-pression à une vitesse de transport du boyau et de la modifier par rapport à celle-ci en-dehors de la zone active, il est possible de produire des perforations différentes d'une manière souple et économique à des écarts différents le long du boyau. Les tôles à estamper permettent en outre un changement de format économique sur le mécanisme perforateur.
PCT/EP2017/076725 2017-03-28 2017-10-19 Mécanisme perforateur et procédé de perforation d'un boyau plié à plat Ceased WO2018177572A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP17787169.6A EP3600803B1 (fr) 2017-03-28 2017-10-19 Mécanisme perforateur et procédé de perforation d'un boyau plié à plat
CN201780089121.XA CN110520265B (zh) 2017-03-28 2017-10-19 用于对折平的薄膜管打孔的打孔机和方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017205180.9A DE102017205180A1 (de) 2017-03-28 2017-03-28 Perforierwerk und Verfahren zum Perforieren eines flach gefalteten Folienschlauchs
DE102017205180.9 2017-03-28

Publications (1)

Publication Number Publication Date
WO2018177572A1 true WO2018177572A1 (fr) 2018-10-04

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Family Applications (1)

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PCT/EP2017/076725 Ceased WO2018177572A1 (fr) 2017-03-28 2017-10-19 Mécanisme perforateur et procédé de perforation d'un boyau plié à plat

Country Status (4)

Country Link
EP (1) EP3600803B1 (fr)
CN (1) CN110520265B (fr)
DE (1) DE102017205180A1 (fr)
WO (1) WO2018177572A1 (fr)

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DE202021100078U1 (de) 2021-01-11 2022-04-12 Krones Ag Aufgeschrumpftes Sleeve-Etikett und Sleeve-Etikett
CN112936423A (zh) * 2021-01-28 2021-06-11 上海应用技术大学 一种贴条式滴灌带滴头的加工装置

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US20070101844A1 (en) 2005-11-10 2007-05-10 Spilker Gmbh Punching device
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EP2487014A1 (fr) * 2011-02-10 2012-08-15 Hunkeler AG Procédé et dispositif destinés à l'estampillage ou à la perforation de bandes de matériaux se déplaçant
DE102011076863A1 (de) 2011-06-01 2012-12-06 Krones Aktiengesellschaft Vorrichtung und Verfahren zur Perforation von Folien
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DE102014216191A1 (de) 2014-08-14 2016-02-18 Krones Ag Verfahren und Vorrichtung zum Aufbringen einer Schrumpffolienhülse
DE102015204821A1 (de) 2015-03-17 2016-09-22 Krones Aktiengesellschaft Vorrichtung und Verfahren zum Perforieren eines Folienschlauchs

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CN110520265A (zh) 2019-11-29
EP3600803A1 (fr) 2020-02-05

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