EP2225161B1 - Use of a cutting device in a labelling device - Google Patents

Use of a cutting device in a labelling device Download PDF

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Publication number
EP2225161B1
EP2225161B1 EP08854949.8A EP08854949A EP2225161B1 EP 2225161 B1 EP2225161 B1 EP 2225161B1 EP 08854949 A EP08854949 A EP 08854949A EP 2225161 B1 EP2225161 B1 EP 2225161B1
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EP
European Patent Office
Prior art keywords
machine
blade
cutting
cutting device
edge
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Active
Application number
EP08854949.8A
Other languages
German (de)
French (fr)
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EP2225161A1 (en
Inventor
Klaus Krämer
Lutz Deckert
Oliver Kress
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KHS GmbH
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KHS GmbH
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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
    • 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
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/0006—Cutting members therefor
    • 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
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/56—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which travels with the work otherwise than in the direction of the cut, i.e. flying cutter
    • B26D1/62—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which travels with the work otherwise than in the direction of the cut, i.e. flying cutter and is rotating about an axis parallel to the line of cut, e.g. mounted on a rotary cylinder
    • B26D1/626—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which travels with the work otherwise than in the direction of the cut, i.e. flying cutter and is rotating about an axis parallel to the line of cut, e.g. mounted on a rotary cylinder for thin material, e.g. for sheets, strips or the like
    • 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
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/0006—Cutting members therefor
    • B26D2001/002—Materials or surface treatments therefor, e.g. composite materials
    • 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
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/0006—Cutting members therefor
    • B26D2001/0066—Cutting members therefor having shearing means, e.g. shearing blades, abutting blades
    • 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
    • B65C2009/1834—Details of cutting means
    • B65C2009/1838—Cutting 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
    • B65C9/1803—Label feeding from strips, e.g. from rolls the labels being cut from a strip
    • B65C2009/1834—Details of cutting means
    • B65C2009/1857—Details of cutting means two co-acting knifes
    • B65C2009/1861—Details of cutting means two co-acting knifes whereby one knife remains stationary

Definitions

  • the invention relates to a use of a cutting device in a labeling device for separating individual labels from a tape or web-shaped label material.
  • the labeling of packaging is often carried out using a web or tape-shaped label material, which is withdrawn in a labeling (labeling) from a roll, wherein of the label material, inter alia, the individual applied to the packaging to be labeled packaging labels be separated by cutting, see for example US 5776289 ,
  • This cutting is usually carried out in a cutting station or cutting device, which is then part of the labeling and essentially consists of at least one provided on a rotating machine element, at least one cutting edge forming first knife or knife element, which for the cutting operation with the cutting edge of a counter knife or second Knife element cooperates.
  • the second knife element is not circumferentially provided, for example, with the machine element such that a cutting gap is formed between the knife elements for cutting, through which the labeling material is guided and in which the separation of the labels from the Etikettenmaterlat takes place.
  • the two cutting edges forming the cutting edges are arranged so that they just barely touch each other, so that ideally the width of the sucking gap is practically zero.
  • the cutting gap be much smaller than the thickness of the web-shaped label material, over the entire length of the cutting gap.
  • the length of the cutting gap is at least equal, but preferably greater than the width of the web-shaped label material, each touch the cutting during the adjustment or during the cutting process leads to increased wear or destruction of the knife elements.
  • a very thin label material for example, with material thicknesses of only 4/100 mm or less, as u.a. are also common in label materials for Folienetlketten, with the hitherto known technique, the adjustment of the cutting gap is extremely difficult and time consuming, and usually performed reliably only by highly qualified personnel.
  • Patent DE 26 28 728 discloses a separating device for producing shaped cuts in the edges of moving paper webs for the production of envelopes or letter envelope blanks.
  • the object of the invention is to show a use of a cutting device in a labeling device for separating individual labels, which avoids the aforementioned disadvantages, in particular a time-consuming adjustment of the cutting gap.
  • a use of a cutting device according to the patent claim 1 is formed.
  • a special feature of the invention is that the two cutting edges forming the cutting edge are not made of the same material, but to select such a material pairing that both cutting edges have different degrees of hardness and / or wear resistance. It is particularly advantageous if one of the two, the respective cutting gap forming cutting is first produced or resharpened by the other cutting by material removal, so that when setting up the cutting device, i. at a first start-up or at a restart of the cutting device after the replacement of functional elements, e.g. the knife elements, only a rough delivery of the knife elements relative to each other, but no time-consuming, accurate alignment is required.
  • functional elements e.g. the knife elements
  • the exact cutting gap is then produced by material removal on the blade element of lower hardness by the cutting edge of the blade element, which has the greater hardness at least in the region of its cutting edge.
  • 1 is a cutting device for cutting a ribbon-shaped or bevel-shaped sheet 2, for example, a label material having a thickness of only a maximum of 4/100 mm or less, i. for separating individual labels from the material 2.
  • the cutting device 1 essentially consists of a machine element 4, which is driven peripherally around a vertical machine axis 3 in the direction of the arrow A and has, for example, a circumferential or circumferential surface 4.1 surrounding the vertical machine axis 3 and at the circumferential or lateral surface 4.1 with at least one knife element 5 is provided, for example, exchangeable and adjustable, in such a way that the blade element 5 forms a cutting edge 6 on a projecting over the lateral surface 4 area.
  • the cutting edge 6 is formed on a projecting in the direction of rotation A of the machine element 4 planar side surface 5.1 of the blade element 5 and the projecting beyond the lateral surface 4 portion of this blade element, in such a way that the blade 6 is driven in rotation Machine element 4 moves on a vertical axis of the machine 3 concentrically enclosing circular cylindrical path.
  • the cutting edge 6 is furthermore oriented parallel to the machine axis 3.
  • the knife element 5 or its cutting edge 6 is assigned a cutting element 7 acting as a counter knife with a cutting edge 8.
  • the knife element 7 is provided on the cutting device 1 with the machine element 4, for example, not encircling, on a suitable holder 9 in the form that the blade element 7 or its cutting edge 8 radially or approximately radially to the rotating machine element 4 on this deliverable (arrow B).
  • the blade element 7 and its cutting edge 8 are also adjustable, for example, so that the blade element 7 or its immediately after installation in the Cutting device 1 already existing cutting edge is oriented at least approximately parallel to the cutting edge 6, when it is located directly on the cutting edge 8.
  • a cutting gap 10 is formed in such a way that during each cutting operation, i. Whenever the knife element 5 moves past the knife element 7 when the machine element 4 is rotating, the cutting edges 6 and 8 just touch, or just do not touch, over the entire length of the cutting gap 10 extending in the direction of the machine axis 3.
  • the length of the cutting gap is at least equal, but preferably greater than the width of the strip or web-shaped flat material 2.
  • the strip or web-shaped flat material 2 is moved through the cutting gap 10 in the direction of the arrow C and is for example at least in the region of the cutting gap 10th oriented in a plane parallel to the machine axis 3.
  • the knife element 5 is made at least at its, the cutting edge 6 forming cutting area with high hardness, i. for example, it is made of hardened steel, e.g. Tool steel, hard metal or ceramic, while the knife element 7 from a compared to the cutting area of the knife element 5 softer material, such as metallic material, e.g. made of aluminum or brass.
  • the cutting device When the cutting device is first put into operation, for example, even after a replacement of functional elements of the cutting device 1, for example one of the knife elements 5 and 7, the coarse adjustment of these knife elements, and in particular the knife element 7 in the catfish, takes place first, that the knife element 7 at least approximately parallel to Knife element 5 or to the cutting edge 6 is oriented. Subsequently, with rotating machine element 4 or with rotating knife element 5, a feed of the knife element 7, so that with the cutting edge 6 by material removal on the blade element 7, the cutting edge 8 is formed.
  • the advancing of the knife element 7 to the rotating machine element 4 in the direction of arrow B is terminated when the cutting edge 8 produced by material removal extends over the entire length of the cutting gap 10 and the cutting gap 10 is designed over its entire length so that the cutting edge 6 and the cutting edge 8 formed by removal of material touch each time passing the knife element 5 on the blade element 7 over the entire length of the cutting gap 10, or just just do not touch on the basis of cutting samples of the sheet 2 is the proper design of the cutting edge 8 monitors or detected and the delivery of the knife element 7 then terminated when the formation of the cutting edge 8 is completed by the material removal generated by the cutting edge 6, or if the cutting process for separating a label over the entire label width is error-free and even.
  • it is tent controlled and / or depending on the number of cuts made, i. after a predetermined number of cutting operations, an automatic slight readjustment or advancement of the knife element 7 in the direction of arrow B to "re-sharpen" the cutting edge 8 and its cutting edge, i. to eliminate wear-related wear of the cutting edge 8.
  • the required in this re-sharpening of the knife element 7 delivery and the resulting material removal on the blade element 7 are so small that the resulting material does not affect the proper operation of the cutting device 1.
  • the knife element 7 for example, a flat surface 7.1, for example, in a plane E, in which the blade 6 and / or the side surface 5.1 of the blade element 5 are arranged when passing the knife element 5 on the blade element 7 and transversely to the direction of movement of the cutting edge 6 when moving past the blade element 7 extends, ie the plane E extends approximately radially to the machine axis 3.
  • the rotating machine element 4 is eg a knife shaft of the cutting device 1, for example a labeling device or a labeling unit.
  • the revolving machine element 4 may, however, also be another circulating functional element of a labeling machine, for example a label drum (for example a vacuum drum) driven peripherally around the machine axis 3, at which the webs separated from the web or web-like material or label material 2 Labels are held before handover to be labeled to packaging, such as containers or bottles.
  • a label drum for example a vacuum drum
  • the pairing of the materials used for the knife elements 5 and 7 is selected so that the knife element 5 at least in the region of its cutting edge 6 has a greater hardness than the knife element 7.
  • the material pairing can also be chosen vice versa ie the knife element 7 can have a greater hardness, at least in the region of its cutting edge, than the knife element 5.
  • the cutting device 1 in such a way that the knife element 7 is likewise provided on the circumference of a revolving machine element 4 a, namely on a machine element 4 a, which revolves around an axis 3 a parallel to the machine axis 3. It is particularly advantageous if the rotational movement of the knife element 7 is tuned to the rotational movement of the machine element 4. The rotational movements can take place in the same direction, as well as in opposite directions.
  • the knife element 5 and / or 7 at least in partial areas on the surfaces and / or to coat, for example, to coat the knife element 5 at least in the region of its cutting edge 6 to improve the wear resistance with nano-particles or by carbon diffusion cure.
  • the cutting edge 6 of the blade element 5 is formed on a plane, with respect to the direction of rotation of the machine element 4 vorseilenden surface 5.1 of this blade element.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Labeling Devices (AREA)
  • Details Of Cutting Devices (AREA)
  • Nonmetal Cutting Devices (AREA)

Description

Die Erfindung bezieht sich auf eine Verwendung einer Schneidvorrichtung in einer Etikettiervorrichtung zum Abtrennen von Einzeletiketten von einem band- oder bahnförmigen Etikettenmaterial.The invention relates to a use of a cutting device in a labeling device for separating individual labels from a tape or web-shaped label material.

Das Etikettieren von Packmitteln, Insbesondere von Flaschen oder anderen Behältern, erfolgt vielfach unter Verwendung eines bahn- oder bandförmigen Etikettenmaterials, welches in einer Etikettiervorrichtung (Etikettieraggregat) von einer Rolle abgezogen wird, wobei von dem Etikettenmaterial u.a. die einzelnes auf die zu etikettierenden Packmittel aufzubringenden Etiketten durch Schneiden abgetrennt werden, siehe z.B. US 5776289 . Dieses Zerschneiden erfolgt üblicherweise In einer Schneidstation oder Schneidvorrichtung, die dann beispielsweise Bestandteil des Etikettieraggregates ist und im Wesentlichen aus wenigstens einem an einen umlaufenden Maschinenelement vorgesehenen, wenigstens eine Schneide bildenden ersten Messer oder Messerelement besteht, welches für den Schneidvorgang mit der Schneide eines Gegenmessers oder zweiten Messerelementes zusammenwirkt. Das zweite Messerelement ist dabei z.B. mit dem Maschinenelement nicht umlaufend derart vorgesehen, dass zwischen den Messerelementen zum Schneiden ein Schneidspalt gebildet ist, durch den das Etikettiermaterial hindurchgeführt ist und in dem das Abtrennen der Etiketten vom Etikettenmaterlat erfolgt. Während des Schneidprozesses sind die beiden, den Schneidspalt bildenden Schneiden derart angeordnet, dass sie einander unmittelbar gegenüber liegend sich gerade noch nicht berühren, so dass im Idealfall die Breite des Sohneidspaltes praktisch Null ist.The labeling of packaging, in particular of bottles or other containers, is often carried out using a web or tape-shaped label material, which is withdrawn in a labeling (labeling) from a roll, wherein of the label material, inter alia, the individual applied to the packaging to be labeled packaging labels be separated by cutting, see for example US 5776289 , This cutting is usually carried out in a cutting station or cutting device, which is then part of the labeling and essentially consists of at least one provided on a rotating machine element, at least one cutting edge forming first knife or knife element, which for the cutting operation with the cutting edge of a counter knife or second Knife element cooperates. The second knife element is not circumferentially provided, for example, with the machine element such that a cutting gap is formed between the knife elements for cutting, through which the labeling material is guided and in which the separation of the labels from the Etikettenmaterlat takes place. During the cutting process, the two cutting edges forming the cutting edges are arranged so that they just barely touch each other, so that ideally the width of the sucking gap is practically zero.

Auf jeden Fall ist es erforderlich, dass der Schneidspalt wesentlich kleiner ist als die Dicke des bahnförmigen Etikettenmaterials ist, und zwar über die gesamte Länge des Schneidspaltes, Die Länge des Schneidspaltes ist wenigstens gleich, vorzugsweise aber größer als die Breite des bahnförmigen Etikettenmaterials, Jede Berührung der Schneiden beim Einstellvorgang oder beim Schneidvorgang führt zu einem erhöhten Verschleiß oder zu einer Zerstörung der Messerelemente. Speziell bei einem sehr dünnen Etikettenmaterial, beispielsweise bei Materialdicken von nur 4/100 mm oder weniger, wie sie u.a. auch bei Etikettenmaterialien für Folienetlketten üblich sind, ist mit der bisher bekannten Technik die Einstellung des Schneidspaltes äußerst schwierig und zeitaufwendig, und in der Regel ausschließlich durch hoch qualifiziertes Fachpersonal zuverlässig durchzuführen.In any case, it is necessary that the cutting gap be much smaller than the thickness of the web-shaped label material, over the entire length of the cutting gap. The length of the cutting gap is at least equal, but preferably greater than the width of the web-shaped label material, each touch the cutting during the adjustment or during the cutting process leads to increased wear or destruction of the knife elements. Especially with a very thin label material, for example, with material thicknesses of only 4/100 mm or less, as u.a. are also common in label materials for Folienetlketten, with the hitherto known technique, the adjustment of the cutting gap is extremely difficult and time consuming, and usually performed reliably only by highly qualified personnel.

Die Patentschrift DE 26 28 728 offenbart eine Scheidvorrichtung zur Herstellung von Formschnitten in die Ränder bewegter Papierbahnen zur Herstellung von Briefhüllen bzw. Briefhüllenrohlingen.The Patent DE 26 28 728 discloses a separating device for producing shaped cuts in the edges of moving paper webs for the production of envelopes or letter envelope blanks.

in einer Etikettiervorrichtung zum Abtrennen von Einzeletiketten Aufgabe der Erfindung ist es, eine Verwendung einer Schneidvorrichtung in einer Etikettiervorrichtung zum Abtrennen von Einzeletiketten aufzuzeigen, die die vorgenannten Nachteile, insbesondere auch eine zeitaufwendige Einstellung des Schneidspaltes vermeidet. Zur Lösung dieser Aufgabe ist eine Verwendung einer Schneidvorrichtung entsprechend dem Patentanspruch 1 ausgebildet.in a labeling device for separating individual labels The object of the invention is to show a use of a cutting device in a labeling device for separating individual labels, which avoids the aforementioned disadvantages, in particular a time-consuming adjustment of the cutting gap. To solve this problem, a use of a cutting device according to the patent claim 1 is formed.

Eine Besonderheit der Erfindung besteht darin, die beiden, den Schneidspalt bildenden Schneiden nicht aus dem selben Material herzustellen, sondern eine solche Materialpaarung zu wählen, dass beide Schneiden unterschiedliche Hartegrade und/oder Verschleißfestigkeiten aufweisen. Dabei ist es von besonderem Vorteil, wenn eine der beiden, den jeweiligen Schneidspalt bildenden Schneiden erst durch die andere Schneide durch Materialabtrag passend erzeugt bzw. nachgeschärft wird, so dass bei einem Einrichten der Schneidvorrichtung, d.h. bei einer ersten Inbetriebnahme oder bei einer Wiederinbetriebnahme der Schneidvorrichtung nach dem Auswechseln von Funktionselementen, z.B. der Messerelemente, lediglich ein grobes Zustellen der Messerelemente relativ zueinander, aber kein zeitaufwändiges, genaues Ausrichten erforderlich ist.A special feature of the invention is that the two cutting edges forming the cutting edge are not made of the same material, but to select such a material pairing that both cutting edges have different degrees of hardness and / or wear resistance. It is particularly advantageous if one of the two, the respective cutting gap forming cutting is first produced or resharpened by the other cutting by material removal, so that when setting up the cutting device, i. at a first start-up or at a restart of the cutting device after the replacement of functional elements, e.g. the knife elements, only a rough delivery of the knife elements relative to each other, but no time-consuming, accurate alignment is required.

Der exakte Schneidspalt wird dann durch Materialabtrag am Messerelement der geringeren Härte durch die Schneide des Messerelementes erzeugt, welches zumindest im Bereich seiner Schneide die größere Härte aufweist.The exact cutting gap is then produced by material removal on the blade element of lower hardness by the cutting edge of the blade element, which has the greater hardness at least in the region of its cutting edge.

Weiterbildungen, Vorteile und Anwendungsmöglichkeiten der Erfindung ergeben sich auch aus der nachfolgenden Beschreibung von Ausführungsbeispielen und aus den Figuren.Further developments, advantages and applications of the invention will become apparent from the following description of exemplary embodiments and from the figures.

Die Erfindung wird im Folgenden anhand der Figuren an Ausführungsbeispielen näher erläutert. Es zeigen:

Fig. 1
in schematischer Darstellung und In Draufsicht ein um eine vertikale Achse umlaufend angetriebenes Maschinenelement mit einem ersten Schneidmesser oder Messerelement, zusammen mit einem mit dem ersten Messerelement zusammen wirkenden, mit dem Maschinenelement nicht umlaufenden zweiten Messerelement einer Schneidvorrichtung, beispielsweise einer Schneidvorrichtung einer Etikettiervorrichtung;
Fig. 2
in einer Ansicht wie Figur 1 die beiden Mosserelemente in vergrößerter Darstellung, zusammen mit einer Teildarstellung des Maschinenelementes;
Fig. 3
die Schneidvorrichtung in vereinfachter Darstellung und in Seitenansicht.
The invention will be explained in more detail below with reference to the figures of exemplary embodiments. Show it:
Fig. 1
in a schematic representation and in plan view a circumferentially driven about a vertical axis driven machine element with a first cutting blade or knife element, together with a cooperating with the first knife element, not rotating with the machine element second knife element of a cutting device, for example a cutting device of a labeling device;
Fig. 2
in a view like FIG. 1 the two Mosser elements in an enlarged view, together with a partial view of the machine element;
Fig. 3
the cutting device in a simplified representation and in side view.

In der Figur ist 1 eine Schneidvorrichtung zum Schneiden eines band- oder behnförmigen Flachmaterials 2, beispielsweise eines Etikettenmaterials mit einer Dicke von nur maximal 4/100 mm oder geringer, d.h. zum Abtrennen von Einzeletiketten von dem Material 2.In the figure, 1 is a cutting device for cutting a ribbon-shaped or bevel-shaped sheet 2, for example, a label material having a thickness of only a maximum of 4/100 mm or less, i. for separating individual labels from the material 2.

Die Schneidvorrichtung 1 besteht im Wesentlichen aus einem um eine vertikale Maschienenachse 3 in Richtung des Pfeils A umlaufend angetriebenen Maschinenelement4, welches beispielsweise eine die vertikale Maschinenachse 3 kreiszylinderförmig umschließende Umfangs- oder Mantelfläche 4.1 aufweist und an der Umfangs- oder Mantelfläche 4.1 mit wenigstens einem Messerelement 5 beispielsweise austauschbar und einstellbar versehen ist, und zwar derart, dass das Messerelement 5 an einem über die Mantelfläche 4 vorstehenden Bereich eine Schneide 6 bildet. Bei der dargestellten Ausführungsform ist die Schneide 6 an einer in Drehrichtung A des Maschinenelementes 4 vorauseilenden planen Seitenfläche 5.1 des Messerelementes 5 bzw. des über die Mantelfläche 4 wegstehenden Teilbereichs dieses Messerelementes gebildet, und zwar in der Weise, dass die Schneide 6 sich bei umlaufend angetriebenen Maschinenelement 4 auf einer die vertikale Maschinenachse 3 konzentrisch umschließenden kreiszylinderförmigen Bahn bewegt. Bevorzugt ist die Schneide 6 weiterhin auch parallel zu der Maschinenachse 3 orientiert.The cutting device 1 essentially consists of a machine element 4, which is driven peripherally around a vertical machine axis 3 in the direction of the arrow A and has, for example, a circumferential or circumferential surface 4.1 surrounding the vertical machine axis 3 and at the circumferential or lateral surface 4.1 with at least one knife element 5 is provided, for example, exchangeable and adjustable, in such a way that the blade element 5 forms a cutting edge 6 on a projecting over the lateral surface 4 area. In the illustrated embodiment, the cutting edge 6 is formed on a projecting in the direction of rotation A of the machine element 4 planar side surface 5.1 of the blade element 5 and the projecting beyond the lateral surface 4 portion of this blade element, in such a way that the blade 6 is driven in rotation Machine element 4 moves on a vertical axis of the machine 3 concentrically enclosing circular cylindrical path. Preferably, the cutting edge 6 is furthermore oriented parallel to the machine axis 3.

Dem Messerelement 5 bzw. dessen Schneide 6 ist ein als Gegenmesser wirkendes Messerelement 7 mit Schneide 8 zugeordnet. Das Messerelement 7 ist an der Schneidvorrichtung 1 mit dem Maschinenelement 4 beispielsweise nicht umlaufend vorgesehen, und zwar an einem geeigneten Halter 9 in der Form, dass das Messerelement 7 bzw. dessen Schneide 8 radial oder etwa radial zum umlaufenden Maschinenelement 4 auf dieses zustellbar (Pfeil B). Für eine erste Grobeinstellung sind das Messerelement 7 bzw. dessen Schneide 8 beispielsweise auch so justierbar, dass das Messerelement 7 bzw. dessen unmittelbar nach dem Einbau in die Schneidvorrichtung 1 bereits vorhandene Schneide zumindest in etwa parallel zu der Schneide 6 orientiert ist, wenn sich diese unmittelbar an der Schneide 8 befindet.The knife element 5 or its cutting edge 6 is assigned a cutting element 7 acting as a counter knife with a cutting edge 8. The knife element 7 is provided on the cutting device 1 with the machine element 4, for example, not encircling, on a suitable holder 9 in the form that the blade element 7 or its cutting edge 8 radially or approximately radially to the rotating machine element 4 on this deliverable (arrow B). For a first coarse adjustment, the blade element 7 and its cutting edge 8 are also adjustable, for example, so that the blade element 7 or its immediately after installation in the Cutting device 1 already existing cutting edge is oriented at least approximately parallel to the cutting edge 6, when it is located directly on the cutting edge 8.

Zwischen den Schneiden 6 und 8 ist ein Schneidspalt 10 gebildet, und zwar derart, dass sich bei jedem Schneidvorgang, d.h. immer dann, wenn sich bei umlaufendem Maschinenelement 4 das Messerelement 5 am Messerelement 7 vorbei bewegt, die Schneiden 6 und 8 gerade berühren, oder aber gerade noch nicht berühren, und zwar über die gesamte Länge des sich in Richtung der Maschinenachse 3 erstreckenden Schneidspaltes 10.Between the cutting edges 6 and 8, a cutting gap 10 is formed in such a way that during each cutting operation, i. Whenever the knife element 5 moves past the knife element 7 when the machine element 4 is rotating, the cutting edges 6 and 8 just touch, or just do not touch, over the entire length of the cutting gap 10 extending in the direction of the machine axis 3.

Die Lange des Schneidspaltes ist wenigstens gleich, bevorzugt aber größer als die Breite des band- oder bahnförmige Flachmaterials 2. Dabei wird das band- oder bahnförmige Flachmaterial 2 durch den Schneidspalt 10 in Richtung des Pfeils C bewegt und ist beispielsweise zumindest im Bereich des Schneidspaltes 10 in einer Ebene parallel zur Maschinenachse 3 orientiert.The length of the cutting gap is at least equal, but preferably greater than the width of the strip or web-shaped flat material 2. In this case, the strip or web-shaped flat material 2 is moved through the cutting gap 10 in the direction of the arrow C and is for example at least in the region of the cutting gap 10th oriented in a plane parallel to the machine axis 3.

Um den erforderlichen Schneidspalt 10 ohne eine umständliche Einstellung oder Ausrichtung der Messerelemente 5 und 7 zu erreichen, ist das Messerelement 5 zumindest an seinem, die Schneide 6 bildenden Schneidenbereich mit großer Härte hergestellt, d.h. es besteht dort beispielsweise aus gehärtetem Stahl, z.B. Werkzeugstahl, Hartmetall oder Keramik, während das Messerelement 7 aus einem im Vergleich zum Schneidenbereich des Messerelementes 5 weicheren Werkstoff, beispielsweise metallischen Werkstoff, z.B. aus Aluminium oder Messing hergestellt ist.In order to achieve the required cutting gap 10 without cumbersome adjustment or alignment of the knife elements 5 and 7, the knife element 5 is made at least at its, the cutting edge 6 forming cutting area with high hardness, i. for example, it is made of hardened steel, e.g. Tool steel, hard metal or ceramic, while the knife element 7 from a compared to the cutting area of the knife element 5 softer material, such as metallic material, e.g. made of aluminum or brass.

Bei der ersten Inbetriebnahme der Schneidvorrichtung beispielsweise auch nach einem Auswechseln von Funktionselementen der Schneidvorrichtung 1, z.B. eines der Messerelemente 5 und 7, erfolgt zunächst die Grobeinstellung dieser Messerelemente und dabei insbesondere auch des Messerelementes 7 in der Welse, dass das Messerelement 7 zumindest annähernd parallel zum Messerelement 5 bzw. zur Schneide 6 orientiert ist. Anschließend erfolgt bei umlaufendem Maschinenelement 4 bzw. bei umlaufendem Messerelement 5 ein Zustellen des Messerelementes 7, so dass mit der Schneide 6 durch Materialabtrag am Messerelement 7 die Schneide 8 gebildet wird. Das Zustellen des Messerelementes 7 zum umlaufenden Maschinenelement 4 in Richtung des Pfeils B wird dann beendet, wenn die durch Materialabtrag erzeugte Schneide 8 sich über die gesamte Länge des Schneidspaltes 10 erstreckt und der Schneidspalt 10 über seine gesamte Länge so ausgeführt ist, dass sich die Schneide 6 und die durch Materialabtrag gebildete Schneide 8 bei jedem Vorbeibewegen des Messerelementes 5 an dem Messerelement 7 über die gesamte Länge des Schneidspaltes 10 gerade berühren, oder gerade eben nicht mehr berühren, Anhand von Schnittproben des Flachmaterials 2 wird die ordnungsgemäße Ausbildung der Schneide 8 überwacht bzw. festgestellt und das Zustellen des Messerelementes 7 dann beendet, wenn durch den, durch die Schneide 6 erzeugten Materialabtrag die Bildung der Schneide 8 abgeschlossen ist, bzw. wenn der Schneidvorgang zur Abtrennung eines Etikettes über die gesamte Etikettenbreite fehlerfrei und gleichmäßig erfolgt.When the cutting device is first put into operation, for example, even after a replacement of functional elements of the cutting device 1, for example one of the knife elements 5 and 7, the coarse adjustment of these knife elements, and in particular the knife element 7 in the catfish, takes place first, that the knife element 7 at least approximately parallel to Knife element 5 or to the cutting edge 6 is oriented. Subsequently, with rotating machine element 4 or with rotating knife element 5, a feed of the knife element 7, so that with the cutting edge 6 by material removal on the blade element 7, the cutting edge 8 is formed. The advancing of the knife element 7 to the rotating machine element 4 in the direction of arrow B is terminated when the cutting edge 8 produced by material removal extends over the entire length of the cutting gap 10 and the cutting gap 10 is designed over its entire length so that the cutting edge 6 and the cutting edge 8 formed by removal of material touch each time passing the knife element 5 on the blade element 7 over the entire length of the cutting gap 10, or just just do not touch on the basis of cutting samples of the sheet 2 is the proper design of the cutting edge 8 monitors or detected and the delivery of the knife element 7 then terminated when the formation of the cutting edge 8 is completed by the material removal generated by the cutting edge 6, or if the cutting process for separating a label over the entire label width is error-free and even.

Während des Betriebes der Schneidvorrichtung erfolgt beispielsweise ein manuelles geringfügiges Nachstellen bzw. Zustellen des Messerelementes 7 in Richtung des Pfeils B um die Schneide 8 nachzuschärfen.During operation of the cutting device, for example, a slight manual readjustment or advancement of the knife element 7 in the direction of the arrow B is made to resharpen the cutting edge 8.

Vorzugsweise erfolgt zeltgesteuert und/oder In Abhängigkeit der Anzahl der durchgeführten Schnitte, d.h. jeweils nach einer vorgegebenen Anzahl von Schneidvorgängen, ein automatisches geringfügiges Nachstellen bzw. Zustellen des Messerelementes 7 in Richtung des Pfeils B, um die Schneide 8 bzw. deren Schneidkante "nachzuschärFen", d.h. eine verschleißbedingte Abnutzung der Schneide 8 zu beseitigen. Die bei diesem Nachschärfen des Messerelementes 7 erforderliche Zustellung und der hierbei anfallende Materialabtrag am Messerelement 7 sind so gering, dass das anfallende Material die ordnungsgemäß Funktion der Schneidvorrichtung 1 nicht beeinträchtigt.Preferably, it is tent controlled and / or depending on the number of cuts made, i. after a predetermined number of cutting operations, an automatic slight readjustment or advancement of the knife element 7 in the direction of arrow B to "re-sharpen" the cutting edge 8 and its cutting edge, i. to eliminate wear-related wear of the cutting edge 8. The required in this re-sharpening of the knife element 7 delivery and the resulting material removal on the blade element 7 are so small that the resulting material does not affect the proper operation of the cutting device 1.

Zur Bildung der Schneide 8 weist das Messerelement 7 beispielsweise eine plane Fläche 7.1 beispielsweise in einer Ebene E auf, in der beim Vorbeibewegen des Messerelementes 5 am Messerelement 7 auch die Schneide 6 und/oder die Seitenfläche 5.1 des Messerelementes 5 angeordnet sind und die sich quer zur Bewegungsrichtung der Schneide 6 beim Vorbeibewegen am Messerelement 7 erstreckt, d.h. die Ebene E erstreckt sich in etwa radial zur Maschinenachse 3.To form the cutting edge 8, the knife element 7, for example, a flat surface 7.1, for example, in a plane E, in which the blade 6 and / or the side surface 5.1 of the blade element 5 are arranged when passing the knife element 5 on the blade element 7 and transversely to the direction of movement of the cutting edge 6 when moving past the blade element 7 extends, ie the plane E extends approximately radially to the machine axis 3.

Das umlaufende Maschinenelement 4 ist z.B. eine Messerwelle der Schneidvorrichtung 1 beispielsweise einer Etikettiervorrichtung oder eines Etikettieraggregates. Das umlaufende Maschinenelement 4 kann aber auch ein anderes, umlaufendes Funktionselement einer Etikettiermaschine sein, beispielsweise eine um die Maschinenachse 3 umlaufend angetriebene Etikettentrommel (z.B. Vakuumtrommel), an der die von dem band- oder bahnförmigen Material oder Etikettenmaterial 2 abgetrennten Etiketten vor der Übergabe an zu etikettierende Packmittel, beispielsweise Behälter oder Flaschen gehalten sind.The rotating machine element 4 is eg a knife shaft of the cutting device 1, for example a labeling device or a labeling unit. The revolving machine element 4 may, however, also be another circulating functional element of a labeling machine, for example a label drum (for example a vacuum drum) driven peripherally around the machine axis 3, at which the webs separated from the web or web-like material or label material 2 Labels are held before handover to be labeled to packaging, such as containers or bottles.

Die Erfindung wurde voranstehend an einem Ausführungsbeispiel beschrieben. Es versteht sich, dass zahlreiche Änderungen sowie Abwandlungen möglich sind, ohne dass dadurch der der Erfindung zugrunde liegende Erfindungsgedanke verlassen wird.The invention has been described above by means of an embodiment. It is understood that numerous changes and modifications are possible without thereby departing from the inventive concept underlying the invention.

So wurde beispielsweise vorstehend davon ausgegangen, dass die Paarung der für die Messerelemente 5 und 7 verwendeten Materialen so gewählt ist, dass das Messerelement 5 zumindest Im Bereich seiner Schneide 6 eine größere Härte aufweist als das Messerelement 7. Selbstverständlich kann die Materialpaarung auch umgekehrt gewählt sein, d.h. das Messerelement 7 kann zumindest im Bereich seiner Schneide eine größere Härte aufweisen, als das Messerelement 5.For example, it was assumed above that the pairing of the materials used for the knife elements 5 and 7 is selected so that the knife element 5 at least in the region of its cutting edge 6 has a greater hardness than the knife element 7. Of course, the material pairing can also be chosen vice versa ie the knife element 7 can have a greater hardness, at least in the region of its cutting edge, than the knife element 5.

Weiterhin wurde vorstehend davon ausgegangen, dass am umlaufenden Maschinenelement 4 nur ein Messerelement 5 vorgesehen ist. Selbstverständlich sind Ausführungen denkbar, bei denen am umlaufenden Maschinenelement 4 um die Achse 3 dieses Elementes versetzt mehrere Messerelemente vorgesehen sind, beispielsweise an einem als Etikettentrommel ausgebildeten umlaufenden Maschinenelement.Furthermore, it was assumed above that only one blade element 5 is provided on the revolving machine element 4. Of course, embodiments are conceivable in which on the rotating machine element 4 offset about the axis 3 of this element a plurality of blade elements are provided, for example, on a trained as a label drum rotating machine element.

Weiterhin besteht die Möglichkeit, die Schneidvorrichtung 1 so auszubilden, dass das Messerelement 7 ebenfalls am Umfang eines umlaufenden Maschinenelementes 4a vorgesehen ist, und zwar an einem Maschinenelement 4a, welches um eine Achse 3a parallel zur Maschinenachse 3 umläuft. Dabei ist es von besonderem Vorteil, wenn die Rotationsbewegung des Messerelementes 7 auf die Rotationsbewegung des Maschinenelementes 4 abgestimmt ist. Dabei können die Rotationsbewegungen sowohl gleichsinnig, als auch gegensinnig erfolgen.Furthermore, it is possible to design the cutting device 1 in such a way that the knife element 7 is likewise provided on the circumference of a revolving machine element 4 a, namely on a machine element 4 a, which revolves around an axis 3 a parallel to the machine axis 3. It is particularly advantageous if the rotational movement of the knife element 7 is tuned to the rotational movement of the machine element 4. The rotational movements can take place in the same direction, as well as in opposite directions.

Weiterhin besteht die Möglichkeit, das Messerelement 5 und/oder 7 zumindest In Teilbereichen an der Oberflächen zu behandeln und/oder zu beschichten, beispielsweise das Messerelement 5 zumindest im Bereich seiner Schneide 6 zur Verbesserung der Verschleißfestigkeit mit Nano-Partikeln zu beschichten oder durch Kohlenstoffdiffusion zu härten.Furthermore, it is possible to treat the knife element 5 and / or 7 at least in partial areas on the surfaces and / or to coat, for example, to coat the knife element 5 at least in the region of its cutting edge 6 to improve the wear resistance with nano-particles or by carbon diffusion cure.

Bei der dargestellten Ausführungsform ist die Schneide 6 des Messerelementes 5 an einer planen, bezogen auf die Drehrichtung des Maschinenelementes 4 vorauseilenden Fläche 5.1 dieses Messerelementes gebildet.In the illustrated embodiment, the cutting edge 6 of the blade element 5 is formed on a plane, with respect to the direction of rotation of the machine element 4 vorseilenden surface 5.1 of this blade element.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Schneidvorrichtungcutter
22
band- oder bahnförmiges Flachmaterialstrip or web-shaped flat material
3, 3a3, 3a
Maschinenachsemachine axis
4,4a4,4a
umlaufendes Maschinenelementrevolving machine element
4.14.1
Umfang des Maschinenelementes 4Circumference of the machine element 4
55
Messerelementknife element
5.15.1
Schneidfläche des Messerelementes 5Cutting surface of the knife element 5
66
Schneide des Messerelementes 5Cutting edge of the knife element 5
77
Messerelement oder GegenmesserKnife element or counter knife
7.17.1
plane Schneidfläche des Messerelementes 7plane cutting surface of the knife element. 7
88th
Schneide des Messerelementes 5Cutting edge of the knife element 5
99
Halterholder
1010
Schneidspaltcutting gap

Claims (9)

  1. Use of a cutting device in a labelling device, wherein, for the separation of individual labels from label material in the form of a strip or web, the cutting device is provided with at least one machine element (4) driven to rotate about a machine axis (3) and with at least one blade element (5) forming at least one first edge (6) and provided on the machine element (4), which interacts with a second edge (8) of at least second blade element (7) to form a cutting gap (10), wherein the first blade element (5) has a hardness at least in the region of its edge (6, 8) that is higher than the hardness of the second blade element (7), and the edge on the blade element of lesser hardness is produced by material removal with the edge (6) of the blade element (5) which is formed as harder, and wherein the blade element with the lesser hardness, due to its lesser hardness, can be worked with material removal or chip removal by the at least one edge of greater hardness, wherein the second blade element (7) consists of aluminium and is anodized on its surface.
  2. Cutting device according to claim 1, characterised in that the blade element (5), which at least harder at its edge, consists in the region of the edge of hardened steel, hard metal, or ceramics.
  3. Use of a cutting device according to any one of the preceding claims, characterised in that the at least one second blade element (7) is arranged on the cutting device (1) with the machine element (4) not rotating, but capable of being adjusted to this machine element (4) or to an orbit of the first machine element (5).
  4. Cutting device according to any one of claims 1-2, characterised in that the at least one second blade element (7) is arranged at the circumference of a further machine element (4a), which can be driven to rotate about a machine axis (3a), and specifically co-ordinated with the one machine element (4).
  5. Use of a cutting device according to claim 4, characterised in that the further machine element (4a) can be driven to rotate in the opposite direction or in the opposite direction to the one machine element (4).
  6. Use of a cutting device according to any one of the preceding claims, characterised in that the first blade element (5) and/or the second blade element (7) are formed with a flat surface (5.1, 7.1) forming the edge (6, 8), which is oriented in a plane (E) enclosing the edge (6, 8) transverse to the movement of the first blade element (5) when the machine element (4) is rotating.
  7. Use of a cutting device according to any one of the preceding claims, characterised by at least two first and/or second blade elements (5, 7).
  8. Use of a cutting device according to any one of the preceding claims, characterised in that the edge (6) of the at least one first blade element (5) is oriented with its longitudinal extension in the direction of the machine axis (3) of the one machine element (4) and, with the machine element (4) rotating, moves on a circular cylinder surface surrounding this machine axis (3).
  9. Use of a cutting device according to any one of the preceding claims, characterised in that the first machine element (4) and/or the second machine element (4a) are a blade shaft or a drum-type function element, such as a label drum or vacuum drum of a labelling device.
EP08854949.8A 2007-11-27 2008-11-18 Use of a cutting device in a labelling device Active EP2225161B1 (en)

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DE102007057409A DE102007057409B4 (en) 2007-11-27 2007-11-27 cutter
PCT/EP2008/009757 WO2009068205A1 (en) 2007-11-27 2008-11-18 Cutting device and method for operating a cutting device

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US20100300581A1 (en) 2010-12-02
DE102007057409A1 (en) 2009-05-28

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