EP3600803B1 - 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

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Publication number
EP3600803B1
EP3600803B1 EP17787169.6A EP17787169A EP3600803B1 EP 3600803 B1 EP3600803 B1 EP 3600803B1 EP 17787169 A EP17787169 A EP 17787169A EP 3600803 B1 EP3600803 B1 EP 3600803B1
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EP
European Patent Office
Prior art keywords
film tube
cutting lines
transverse
perforations
metal punching
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.)
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Application number
EP17787169.6A
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German (de)
English (en)
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EP3600803A1 (fr
Inventor
Thomas Eggl
Florian Lang
Johannes Strauss
Bernd Braatz
Robert Krieger
Martin Kupka
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Krones AG
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Krones AG
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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 perforating according to the preamble of claim 1, as is known from DE 10 2014 216191 A , and a method for perforating a flat-folded film tube.
  • labels can be produced from web-like materials by guiding the material to be punched between a rotating punching cylinder and an impression cylinder.
  • the processing of multi-layer materials is also possible here, for example for the selective punching out of self-adhesive labels on a carrier tape.
  • the stamping of sandwich labels, so-called piggybacks or the like, is also known in principle. For this purpose, for example, sheaths with different heights are formed on the punching cylinder.
  • Punching devices that can be used flexibly with an adjustable gap between the punching cylinder and the impression cylinder are, for example, in DE 10 2004 032 030 A1 , DE 10 2010 026 607 A1 and U.S. 2007/101844 A1 disclosed.
  • a perforator according to claim 1. Accordingly, this is suitable for processing a longitudinally folded film tube and comprises a continuous rotating magnetic cylinder and an impression cylinder as well as a flexible die plate magnetically attached to the magnetic cylinder with cutting lines for perforating the film tube.
  • a controller for the magnetic cylinder with which the circumferential speed of the cutting lines in the effective area can be adjusted with the counter-pressure cylinder to a transport speed of the film tube and, in contrast, can be changed outside of the effective area.
  • the cutting lines run in the transverse direction and/or longitudinal direction in a first region of the stamped sheet metal and only in the transverse direction in a second region of the stamped sheet metal.
  • the work cycle of the perforating unit can be adapted to the transport speed of the film tube and to a predetermined distance between the perforations to be produced with the cutting lines.
  • the tubular film is transported through the perforating unit essentially at a constant speed.
  • the magnetic cylinder rotates continuously, but at a variable speed, so that the peripheral speed of the cutting rules varies in a controlled manner between the individual punching processes.
  • the controller is designed to adjust the peripheral speed outside the effective range as a function of a label length to be produced.
  • tear-off perforations can be produced in the tubular film at a distance of a predetermined label length, although the distance between the associated cutting lines on the die-cut sheet deviates from this.
  • 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 area with the impression cylinder. With a simultaneously constant transport speed, the perforations produced with the cutting lines are then further apart from one another in the longitudinal direction of the film tube. Conversely, this also applies to a reduction in the label length to be produced in each case.
  • the cutting lines in the first area of the die-cutting plate are preferably so high that only the wall of the tubular film facing the die-cutting plate is perforated.
  • a tear-off tab and/or a tear-off line can be formed, in particular only in the wall of the film tube facing the magnetic cylinder and the punching plate, while the wall of the film tube lying behind it remains essentially intact.
  • the cutting lines can also be so high that both walls of the film tube are perforated to produce tear-open tabs/lines.
  • the cutting lines in the second area of the stamped metal sheet are at least so high that both walls of the tubular film lying on top of one another are perforated over its entire width, with the fold edges delimiting the tubular film being left out. This allows tear-off perforations to be formed for the subsequent separation of the film tube into label sleeves.
  • the cutting lines can be lower in the first area than the cutting lines in the second area.
  • the cutting lines of the second area weaken the material of the film tube more than the cutting lines of the first area, particularly in its longitudinal direction. Consequently, tear-off perforations produced with the cutting lines of the second area tear more easily than the tear-off tabs and/or tear lines produced with the cutting lines of the first area when there is longitudinal tension in the film tube, in particular when it is separated into label sleeves. The latter thus remain intact during the separation.
  • the cutting lines of the second area produce, for example, larger perforation holes than the cutting lines of the first area and/or a smaller distance between directly adjacent perforation holes.
  • the perforator also includes flexible punched metal sheets with different cutting lines, which can be used to produce different perforation patterns in the film tube alternatively, have it attached magnetically to the magnetic cylinder.
  • the die-cut sheets can be provided comparatively cheaply as set parts for the production of different labels and perforation patterns and can be replaced when worn.
  • the perforating device also includes flexible punching plates with different thicknesses, which can alternatively be attached magnetically to the magnetic cylinder for perforating film tubes of different thicknesses and/or different materials.
  • the stamped sheets are then provided in the form of exchangeable set parts. The thickness of the stamped metal sheets then depends, for example, on a predetermined gap size between the magnetic cylinder and the impression cylinder and the thickness of the tubular film to be perforated.
  • this serves to perforate a flat folded film tube, with the film tube running at a particularly constant transport speed between at least one impression cylinder and magnetic cylinder with a die-cutting plate magnetically attached thereto and being perforated by cutting lines formed on the die-cutting plate, which in at least a first area of the die-cutting plate in the transverse direction and in the longitudinal direction and in at least a second region of the stamped sheet only in the transverse direction (Q).
  • the peripheral speed of the cutting lines in the effective area is adapted to a transport speed of the film tube with the counter-pressure cylinder and is changed in comparison outside the effective area.
  • the angular speed of the magnetic cylinder is changed according to the required peripheral speed of the cutting edges by means of an 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 rotational speed for non-contact.
  • Combined transverse/longitudinal perforations are preferably produced selectively in the wall of the tubular film facing the magnetic cylinder and/or in both walls of the tubular film lying one on top of the other, in particular for the formation of tear tabs and/or tear lines.
  • running cutting lines are formed in the stamping sheet both in the transverse direction and in the longitudinal direction, ie, for example, obliquely unroll the film tube to its perforation.
  • transverse perforations extending over the entire width of the film tube are preferably produced in the two walls of the film tube lying one on top of the other, leaving out the fold edges laterally delimiting the film tube. This serves to generate predetermined tear lines for the later separation of the film tube into label sleeves. Separation is then possible with continuous further transport of the tubular film by tearing it off by means of longitudinal tension over the entire width of the tubular film. The folded edges are then not interrupted on the outside by perforation holes or similar punched-out areas.
  • the transverse perforations preferably withstand less longitudinal stress in the film tube than the transverse/longitudinal perforations. This makes it possible to avoid the perforation lines for the tear-off tabs already being severed during separation.
  • the tear-off tabs should only be torn open when the labeled product is used as intended.
  • transverse perforations and the transverse/longitudinal perforations are preferably made on the same magnetic cylinder. Appropriately designed cutting lines for the production of both types of perforation are then formed on one and the same punching sheet. This enables a particularly efficient production of tear-off tabs and separating perforations, as well as a particularly precise arrangement of the transverse perforations and the transverse/longitudinal perforations relative to one another.
  • the peripheral speed outside the effective range is specifically reduced or increased to adjust the position of the transverse perforations and/or transverse/longitudinal perforations in the longitudinal direction of the tubular film.
  • This enables the format of the perforating unit to be quickly adapted by changing the rotational speed of the magnetic cylinder in a programmed manner.
  • the film tube is preferably a shrink tube or an elastic tube for labeling containers.
  • the tubular film can be designed for labeling and/or securing the closure of a closure area and/or neck area of a container.
  • the die-cut sheet metal is preferably exchanged for the production of differently perforated label sleeves and/or for the perforation of different film tubes. This enables a flexible and economical production of different labels. In particular, it is not necessary to exchange the magnetic cylinder for a format change. Instead, different flexible dies for format changes can be easily attached to the magnetic cylinder using magnetic force and changed quickly.
  • the perforating unit 1 comprises a magnetic cylinder 2, an impression cylinder 3 and a flexible punching plate 4 magnetically attached to the magnetic cylinder 2.
  • the film tube 6 is folded flat in the longitudinal direction and therefore has a wall facing the punching plate 4 and a wall facing the impression cylinder 3 when passing through the perforating unit 1 .
  • At least the magnetic cylinder 2 is driven by means of an electric motor 7, which is preferably a servomotor.
  • the rotational speed DG, for example in the form of the angular speed, of the magnetic cylinder 2 can be influenced in a targeted manner by controlling the motor 7 using a controller 8 .
  • the flexible stamped sheet metal 4 comprises at least one first region 4a, in which the first cutting lines 5a run both in the transverse direction Q and in the longitudinal direction L.
  • 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 area 4b with a second cutting line 5b running only in the transverse direction Q is formed on the flexible stamped sheet metal 4 .
  • two second areas 4b with identical second cutting lines 5b are distributed uniformly around the circumference to one another on the stamped sheet metal for the production of Tear-off perforations formed in the film tube 6 with identical distances from each other.
  • first areas 4a with identical first cutting lines 5a are also formed on the stamped sheet metal, distributed evenly around the circumference to one another for the production of tear-off tabs.
  • first cutting lines 5a could be arranged anywhere on the stamped sheet metal 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 essentially identical to the transport speed 6a of the film tube 6 in the effective area with the impression cylinder 3, or in other words, when in contact with the film tube 6 running through the perforating unit 1.
  • the magnetic cylinder then rotates at a first rotational speed DG1.
  • the peripheral speed UGa, UGb of the first cutting lines 5a, 5b can be changed outside of the effective area 9, ie when the first cutting lines 5a, 5b are not touching the film tube 6. This is preferably done by decelerating or accelerating the magnetic cylinder 2 to the second rotational speed DG2.
  • the controller 8 Depending on the number and position of the first cutting lines 5a, 5b, the controller 8 thus periodically adjusts the rotational speed DG between the first rotational speed DG1 and the second rotational speed DG2. In principle, any curves of the rotational speed DG are possible in between.
  • the first cutting lines 5a are used to produce a transverse/longitudinal perforation 10a for a tear-off tab, which only extends through the wall 6b of the film tube 6 facing the magnetic cylinder 2 .
  • transverse perforations 10b that reach through both walls 6b, 6c of the film tube 6 are 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 is less than the height Hb of the second cutting lines 5b.
  • transverse/longitudinal perforations 10a for tear-off tabs or the like which reach through both walls 6b, 6c of the film tube 6, using cutting lines 5a of a suitable height Ha.
  • the transverse perforations 10b are used to segment the tubular film 6 into label sleeves still attached to one another, which can be torn off the tubular film 6 one after the other for labeling containers or the like, for example by means of suitable longitudinal tension downstream of the perforating unit 1.
  • the transverse perforations 10b are preferably designed in such a way that they tear apart at a lower longitudinal tension in the film tube 6 than the transverse/longitudinal perforations 10a for the tear-off tabs. The latter should only tear open when the labeled product is used as intended, but not when the tubular film 6 is separated to form 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 range 9.
  • corresponding periodic rotational speed profiles for the magnetic cylinder 2 can be stored in the controller 8 . Depending on the format, these can then be called up for the individual label types to be produced.
  • the figure 3 shows schematically a possible arrangement of the first and second cutting lines 5a, 5b in the associated areas 4a, 4b of the stamped sheet metal 4 in a plan view of the flat-rolled stamped sheet metal 4.
  • the figure 3 10 also illustrates the positional adjustment of the transverse/longitudinal perforations 10a to one another and of the transverse perforations 10b to one another by varying the rotational speed DG. Accordingly, the distances 12b between the transverse perforations 10b deviate in a targeted manner from the distances 11b between the cutting lines 5b.
  • the transverse/longitudinal perforations 10a and the transverse perforations 10b are each paired with the first rotational speed DG1 punched and the magnetic cylinder 2 between them temporarily braked to the second rotational speed DG.
  • the distance 12b in this case corresponds to a label length after separation along the transverse perforations 10b.
  • the figure 4 schematically illustrates another possible arrangement of first cutting lines 51a, 52a and second cutting lines 51b in associated first areas 41a and second areas 41b of a flexible stamped sheet metal 41 in the flat, unfolded state.
  • the first cutting lines 51a, 52a are preferably designed for a perforation through both walls 6b, 6c of the film tube 6.
  • the first cutting lines 51a, 52a of a specific punched sheet metal 41 can be designed for punchings of different widths and/or lengths. This is in the figure 4 indicated schematically. In principle, however, it is also possible to form the first cutting lines 51a, 52a with a different height Ha or with a different overall thickness of the stamped sheet metal 41.
  • a transverse/longitudinal perforation 101a running obliquely in the example for a tear-open tab and, in the example, an orthogonally aligned transverse/longitudinal perforation 102a for a tear-open line can be produced.
  • the tear line is designed essentially in the transverse direction Q for tearing on the finished labeled product.
  • the tear line differs from the tear-off perforation, that is to say the transverse perforation 101b, essentially in that it is designed for successive tearing along the transverse/longitudinal perforation 102a. Tear lines could also run obliquely, for example.
  • the second cutting lines 51b of the stamped sheet metal 41 are also designed for a perforation through both walls 6b, 6c of the film tube 6 and thus for the production of transverse perforations 101b. These serve as tear-off perforations for separating the tubular film 6 into labels.
  • the cutting lines 51b, 51a and 52a are configured such that the tear-off perforations produced tear at a lower longitudinal tension in the film tube 6 than the tear lines and/or tear-open tabs produced, so that the tear lines and/or tear-open tabs remain intact during separation.
  • the first cutting lines 51a, 52a and the second cutting lines 51b are formed so that the laterally limiting fold edges 6d of the film tube 6 are not perforated on the outside. Nevertheless, the transverse perforations 101b extend functionally over the entire width of the film tube 6. This allows for on the one hand proper isolation and on the other hand prevents damage to the film tube 6 and/or problems when conveying the perforated film tube 6 in the area of the fold edges 6d.
  • the figure 4 clarifies the position adjustment of the transverse/longitudinal perforations 101a, 102a and the transverse perforations 101b by varying the rotational speed DG in analogy to figure 3 . Accordingly, the distance 121b between the transverse perforations 101b is adjusted by periodically adjusting the rotational speed DG. Here, too, the distance 121b corresponds to a label length after separation along the transverse perforations 101b.
  • the distance 122b between the transverse perforations 101b and the adjacent transverse/longitudinal perforations 102a is constant, since these are connected by the oblique transverse/longitudinal perforations 101a and are punched together at the first rotational speed DG1 corresponding to the transport speed 6a of the film tube 6.
  • Different punched metal sheets 4, 41 can be provided for the production of different labels and/or for the processing of film tubes 6 of different thicknesses and/or different materials.
  • the stamped sheets 4, 41 can differ in terms of the course of the first cutting lines 5a, 51a, 52a and the second cutting lines 5b, 51b and/or in terms of the height of individual cutting lines 5a, 51a, 52a, 5b, 51b and/or in terms of the number of similar cutting lines 5a, 51a, 52a, 5b, 51b per stamped sheet metal 4, 41 and/or with regard to the thickness of the stamped sheet metal 4, 41.
  • Different stamped sheets 4, 41 can be provided comparatively inexpensively as set parts.
  • the attachment to the magnetic cylinder 2 is comparatively simple and precise with a low expenditure on equipment.
  • the perforating unit 1 can be used, for example, as follows.
  • a tubular film 6 folded lengthwise at fold edges 6d is preferably fed endlessly from a roll to the perforating unit 1 at a constant transport speed 6a.
  • the magnetic cylinder 2 is driven by means of a motor 7 and controller 8 in such a way that the cutting lines 5a, 51a, 52a, 5b, 51b on the stamped sheet metal 4, 41 each have a peripheral speed UGa, UGb when they come into contact with the film tube 6 (in the effective area 9). , the corresponds essentially to the transport speed 6a of the film tube 6 .
  • the cutting lines 5a, 51a, 52a, 5b, 51b then run along with the film tube 6.
  • transverse/longitudinal perforations 10a, 101a, 102a are produced in a targeted manner, which can only be made through a facing wall 6b or through both walls 6b, 6c of the film tube 6 and/or transverse perforations 10b, 101b, which extend through the two walls 6b, 6c of the film tube 6 lying on top of one another and thereby functionally in particular over the entire width of the film tube 6.
  • the folded edges 6d of the tubular film 6 are left out of perforation holes or punched-out portions.
  • the perforation holes or similar punched-out portions produced can be in the form of points, slots or the like, depending on the shape of the individual cutting edges of the cutting lines 5a, 51a, 52a, 5b, 51b.
  • its rotational speed DG can be set and/or changed in a targeted manner when the cutting lines 5a, 51a, 52a, 5b, 51b are not acting on the tubular film 6 in order to reduce the distances 11b, 121b, in particular between the transverse perforations 10b, 101b in the longitudinal direction of the film tube 6 set.
  • the controller 8 specifies a periodically repeating speed profile between rotational speeds DG1 and DG2. Different speed curves are preferably stored in the controller 8 so that they can be called up for different film formats and label formats.
  • flexible stamped metal sheets 4, 41 with different thicknesses can be attached to the magnetic cylinder 2.
  • the punched metal sheets 4, 41 can be exchanged. Only relatively short set-up times are required for this.
  • the perforating unit 1 is therefore suitable for frequent format changes.
  • a comparatively high machine output 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, if necessary but also one behind the other on different magnetic cylinders 2.
  • the perforating unit 1 can then comprise, for example, another pair of magnetic cylinder 2 and impression cylinder 3 with associated motor 7.
  • the film tube 6 perforated as described above can then be fed in a known manner to a labeling unit (not shown), which separates the film tube 6 into label sleeves by tearing it off at the transverse perforations 10b, 101b and attaches it to containers (not shown).
  • the film tube 6 can be, for example, a shrink tube or an elastically expandable tube that is attached to containers by means of elastic tension.

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Claims (15)

  1. Mécanisme perforateur (1) pour un tube de film (6) plié longitudinalement, caractérisé par un cylindre magnétique (2) pouvant tourner en continu, un cylindre antagoniste (3), ainsi qu'une tôle à estamper flexible (4, 41) fixée magnétiquement au cylindre magnétique, pourvue de lignes de coupe (5a, 51a, 52a, 5b, 51b) pour la perforation du tube de film (6), ainsi qu'une commande (8) pour le cylindre magnétique (2), laquelle permet d'adapter la vitesse circonférentielle (UGa, UGb) des lignes de coupe (5a, 51a, 52a, 5b, 51b) dans la zone active (9) comprenant le cylindre antagoniste (3) à une vitesse de transport (6a) du tube de film (6) et de modifier par rapport à celle-ci en-dehors de la zone active (9), les lignes de coupe (5a, 51a, 52a) s'étendant dans au moins une première zone (4a, 41a) de la tôle à estamper (4, 41) dans une direction transversale (Q) et une direction longitudinale (L), (4b, 41b) et les lignes de coupe (5b, 51b) s'étendant dans au moins une seconde zone (4b, 41b) de la tôle à estamper (4, 41) uniquement dans la direction transversale (Q).
  2. Mécanisme perforateur selon la revendication 1, dans lequel la commande (8) est conçue pour régler la vitesse circonférentielle (UGa, UGb) à l'extérieur de la zone active (9) en fonction d'une longueur d'étiquette à fabriquer.
  3. Mécanisme perforateur selon la revendication 1 ou 2, dans lequel les lignes de coupe (5a, 51a, 52a) dans la première zone (4a, 41a) de la tôle à estamper (4, 41) présentent une hauteur (Ha) telle qu'elles ne perforent que la paroi (6b) du tube de film (6) tournée vers la tôle à estamper (4, 41).
  4. Mécanisme perforateur selon l'une quelconque des revendications précédentes, dans lequel les lignes de coupe (5b, 51b) dans la deuxième zone (4b, 41b) de la tôle à estamper (4, 41) présentent une hauteur (Hb) telle qu'elles perforent les deux parois superposées (6b, 6c) du tube de film (6) sur toute leur largeur en appliquant les bords de pliage (6d) délimitant le tube de film (6) latéralement.
  5. Mécanisme perforateur selon l'une quelconque des revendications précédentes, comprenant en outre des tôles estampées flexibles (4, 41) avec différentes lignes de coupe (5a, 51a, 52a, 5b, 51b) qui peuvent être fixées magnétiquement au cylindre magnétique (2) de manière alternative pour produire différents motifs de perforations dans le tube de film (6).
  6. Mécanisme perforateur selon l'une quelconque des revendications précédentes, comprenant en outre des tôles à estamper flexibles (4, 41) d'épaisseur différente qui peuvent être fixées magnétiquement au cylindre magnétique (2) de manière alternative pour perforer des tubes de film (6) d'épaisseur différente et/ou de matériau différent.
  7. Procédé de perforation d'un tube de film (6) plié à plat, caractérisé en ce que le tube de film (6) passe à une vitesse de transport (6a) particulièrement constante entre au moins un cylindre antagoniste (3) et un cylindre magnétique (2) avec une tôle à estamper (4, 41) fixée magnétiquement sur celui-ci, et est perforé par des lignes de coupe (5a, 51a, 52a, 5b, 51b) formées sur la tôle à estamper (4), qui s'étendent dans au moins une première zone (4a, 41a) de la tôle à estamper (4, 41) dans la direction transversale (Q) et dans la direction longitudinale (L) et s'étendent dans au moins une seconde zone (4b, 41b) de la tôle à estamper (4, 41) uniquement dans la direction transversale (Q), la vitesse circonférentielle (UGa, UGb) des lignes de coupe (5a, 51a, 52a, 5b, 51b) dans la zone active (9) avec le cylindre antagoniste (3) étant adaptée à la vitesse de transport (6a) du tube de film (6) et modifiée à l'extérieur de la zone active (9) par rapport à celle-ci.
  8. Procédé selon la revendication 7, dans lequel la vitesse de rotation (DG) du cylindre magnétique (2) est modifiée périodiquement entre une première vitesse de rotation (DG1) pour un contact des lignes de coupe (5a, 51a, 52a, 5b, 51b) avec le tube de film (6) et au moins une seconde vitesse de rotation (DG2) pour une absence de contact.
  9. Procédé selon la revendication 7 ou 8, dans lequel des perforations transversales/longitudinales combinées (10a, 101a, 102a) sont fabriquées de manière sélective dans la paroi (6b) du tube de film (6) tournée vers le cylindre magnétique (2) et/ou dans les deux parois (6b, 6c) du tube de film (6) qui sont superposées, en particulier pour la formation de pattes de déchirure et/ou de lignes de déchirure.
  10. Procédé selon l'une quelconque des revendications 7 à 9, dans lequel des perforations transversales (10b) s'étendant fonctionnellement sur toute la largeur du tube de film (6) sont réalisées dans les deux parois superposées (6b, 6c) du tube de film (6) par application de bords de pliage (6d) délimitant latéralement.
  11. Procédé selon les revendications 9 et 10, dans lequel les perforations transversales (10b, 101b) résistent à une tension longitudinale dans le film tubulaire (6) inférieure à celle des perforations transversales/longitudinales (10a, 101a, 102a).
  12. Procédé selon les revendications 9 et 10, dans lequel les perforations transversales (10b, 101b) et les perforations transversales/longitudinales (10a, 101a, 102a) sont réalisées avec la même tôle à estamper (4, 41).
  13. Procédé selon l'une quelconque des revendications 9 à 12, dans lequel la vitesse circonférentielle (UGa, UGb) en dehors de la zone active (8) pour l'adaptation de position des perforations transversales (10b, 101b) et/ou des perforations transversales/longitudinales (10a, 101a, 102a) est réduite ou augmentée de manière ciblée dans la direction longitudinale du tube de film (6).
  14. Procédé selon l'une quelconque des revendications 7 à 13, dans lequel le tube de film (6) est un tube thermorétractable ou un tube élastique pour l'étiquetage de récipients dans une installation de remplissage.
  15. Procédé selon l'une quelconque des revendications 7 à 14, dans lequel la tôle à estamper (4, 41) est remplacée pour produire des manchons d'étiquettes perforés différents et/ou pour perforer des tubes de film (6) différents.
EP17787169.6A 2017-03-28 2017-10-19 Mécanisme perforateur et procédé de perforation d'un boyau plié à plat Active EP3600803B1 (fr)

Applications Claiming Priority (2)

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DE102017205180.9A DE102017205180A1 (de) 2017-03-28 2017-03-28 Perforierwerk und Verfahren zum Perforieren eines flach gefalteten Folienschlauchs
PCT/EP2017/076725 WO2018177572A1 (fr) 2017-03-28 2017-10-19 Mécanisme perforateur et procédé de perforation d'un boyau plié à plat

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EP3600803B1 true EP3600803B1 (fr) 2023-05-24

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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

Family Cites Families (15)

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Publication number Priority date Publication date Assignee Title
DE9211522U1 (de) * 1992-09-02 1992-10-22 C. Behrens Ag, 3220 Alfeld Vorrichtung zum Stanzen von bewegtem bahnförmigem Material
DE102004032030A1 (de) 2004-07-02 2006-01-19 Spilker Gmbh Vorrichtung zum Stanzen und/oder Prägen von Materialbahnen
US20070101844A1 (en) 2005-11-10 2007-05-10 Spilker Gmbh Punching device
US7866361B2 (en) * 2006-06-30 2011-01-11 Sca Hygiene Products Ab Device for the manufacture of absorbent products
EP2042279A1 (fr) * 2007-09-25 2009-04-01 S + C Märker GmbH Cage de laminoir de presse et procédé de découpage à rotation
DE102009005436A1 (de) * 2009-01-19 2010-07-22 Wink Stanzwerkzeuge Gmbh & Co. Kg Stanzblech und Verfahren zur Herstellung eines solchen
GB0911823D0 (en) * 2009-07-08 2009-08-19 Cadbury Uk Ltd Packaging
DE102010014430A1 (de) * 2010-04-03 2011-10-06 Smurfit Kappa Rapidcorr Euskirchen Gmbh Verfahren zum kontinuierlichen Herstellen einer Wellpappebahn und von an dieser im Zuge ihrer Herstellung zugeschnittenen Wellpappeformaten sowie Wellpappeerzeugungsanlage zum Durchführen des Verfahrens
DE102010026607A1 (de) 2010-07-09 2012-01-12 Gallus Druckmaschinen Gmbh Vorrichtung zum rotativen Stanzen von flachem mehrschichtigem Gut
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
US9189978B2 (en) * 2013-02-27 2015-11-17 Ccl Label, Inc. Labels, label sheet assemblies, and related methods
DE102014216191A1 (de) * 2014-08-14 2016-02-18 Krones Ag Verfahren und Vorrichtung zum Aufbringen einer Schrumpffolienhülse
CN104325771B (zh) * 2014-10-09 2016-06-01 海宁长林包装材料有限公司 一种包装膜的生产设备
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
CN110520265B (zh) 2021-07-06
WO2018177572A1 (fr) 2018-10-04
EP3600803A1 (fr) 2020-02-05
DE102017205180A1 (de) 2018-10-04

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