EP2067701A1 - Cutting tool to cut labels - Google Patents

Cutting tool to cut labels Download PDF

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Publication number
EP2067701A1
EP2067701A1 EP20080170412 EP08170412A EP2067701A1 EP 2067701 A1 EP2067701 A1 EP 2067701A1 EP 20080170412 EP20080170412 EP 20080170412 EP 08170412 A EP08170412 A EP 08170412A EP 2067701 A1 EP2067701 A1 EP 2067701A1
Authority
EP
European Patent Office
Prior art keywords
cutting
cutting tool
housing
suspension body
cutting element
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.)
Granted
Application number
EP20080170412
Other languages
German (de)
French (fr)
Other versions
EP2067701B1 (en
Inventor
Josef Scheck
Stefan Scherl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Krones AG
Original Assignee
Krones AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Krones AG filed Critical Krones AG
Publication of EP2067701A1 publication Critical patent/EP2067701A1/en
Application granted granted Critical
Publication of EP2067701B1 publication Critical patent/EP2067701B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • B26D7/2628—Means for adjusting the position of the cutting member
    • 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
    • B26D1/01—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 does not travel with the work
    • B26D1/12—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 does not travel with the work having a cutting member moving about an axis
    • B26D1/25—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 does not travel with the work having a cutting member moving about an axis with a non-circular cutting member
    • B26D1/34—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 does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut
    • B26D1/40—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 does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut and coacting with a rotary member
    • B26D1/405—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 does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut and coacting with a rotary member 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
    • 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
    • B26D2007/2685—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member flexible mounting means
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/465—Cutting motion of tool has component in direction of moving work
    • Y10T83/4766—Orbital motion of cutting blade
    • Y10T83/4795—Rotary tool
    • Y10T83/4812—Compound movement of tool during tool cycle

Definitions

  • the present invention relates to a cutting tool for cutting labels, and a cutting device for cutting labels.
  • a cutting tool for cutting labels From the prior art it is known to paste containers and in particular bottles with labels. This endless rolls are provided with labels and these endless rolls are attracted to a counter-cutting roll. Subsequently, these endless labels are cut into individual labels and glued to the containers. For cutting these label strips, these counter cutting rollers have counter cutting strips, which in turn interact with knives, these knives being arranged on a further cutting rotor. It is necessary that the cutting blades are arranged as exactly as possible or parallel with respect to the cutting strips so that the cutting process can be performed clean. However, in the prior art, the problem arises that it can lead to excessive or one-sided wear of the cutting blade and then their function can no longer properly perceive.
  • a labeling machine for labeling containers is known.
  • a cutting device is formed by a rotating vacuum roller and a rotating separating element, wherein this separating element has on its outer circumference at least one cutting tool and in particular a cutting blade.
  • the separating element in the respective separating tool resilient is arranged to perform the separation process gently.
  • this resilient arrangement is executed, nor in which spatial direction the resilient mounting is made.
  • the present invention is therefore based on the object to provide a suspension for a cutting element available, which is designed such that a cutting process for a labeling machine can be performed gently for the cutting blade. This is achieved according to the invention by the subject matter of claim 1. Advantageous embodiments and further developments are the subject of the dependent claims.
  • An inventive cutting tool which is provided in particular for cutting labels, has a housing rotatable about an axis of rotation and a housing disposed on this cutting element.
  • this cutting element has a cutting edge which extends substantially in a direction parallel to the axis of rotation and the cutting element is detachably arranged on the housing.
  • the cutting element is movably arranged with respect to the housing and a first suspension body is provided, which springs a movement of the cutting element in a substantially radial direction of the housing.
  • the radial direction of the housing or rotor is understood to mean a radial direction with respect to the axis of rotation about which the housing rotates.
  • This resilient mounting of the cutting element in the radial direction of the housing of a one-sided wear of the suspension element can be counteracted.
  • Under the radial direction of the housing in addition to a geometrically exactly radial direction of the housing, which extends from the cutting element to the axis of rotation, also those directions understood that are parallel to this radial direction.
  • a suspension in the radial direction is understood as meaning those suspensions which have a directional component in the radial direction.
  • a cutting element which springs in an oblique direction with respect to the radial direction would also have a movement in the radial direction and thus also spring in the radial direction of the housing.
  • the suspension body is preferably arranged inwardly in a radial direction of the housing than the cutting element.
  • the suspension body is preferably arranged on a geometrical line between a region of the cutting element and the axis of rotation between the cutting element and the axis of rotation.
  • the suspension body is offset laterally relative to this geometric line.
  • the cutting tool is rotatable through 360 °, but it would also be possible to allow only lower rotation angle.
  • the suspension body is arranged in the direction of the axis of rotation between the two end portions of the cutting element.
  • the suspension body is preferably provided in the interior of the housing.
  • the suspension body has a gas-filled suspension element. More specifically, the suspension body here on an air cushion, which in turn exerts a force on the cutting element upon application of compressed air.
  • the pressure of this compressed air and the biasing force of the cutting element can be adjusted radially outward.
  • a force can be selected which, while sufficient to cut the labels, is small enough to prevent premature wear of the cutting element and in particular the cutting edge.
  • the labels are not cut in the true sense but pressed through.
  • An advantageous development of the invention is to form the suspension body permanently supplied with air.
  • This means that the suspension body is constantly in contact with an air supply, which, if necessary, can track compressed air.
  • the air supply is preferably adjustable, so that different suspension properties can be represented by the generation of different pressures in the suspension body.
  • the cutting element is arranged in a recess provided on an outer circumference of the housing. This recess preferably extends radially inwards.
  • a carrier is provided between the cutting element and the first suspension body, which contacts the cutting element and the first suspension body.
  • the cutting element is not touched directly by the first suspension body, but the force which applies the suspension body to the cutting element is transmitted via the carrier.
  • the cutting tool has a second suspension body, which pretensions or secures the cutting element in a circumferential direction of the housing relative to the housing.
  • the cutting element is in the above-mentioned groove of the housing or of the cutting rotor.
  • the cutting element is clamped as soon as air is applied to the second suspension body.
  • the second suspension body thus also has a gas-filled suspension element.
  • the second suspension body is supplied with continuous air, which is preferably introduced through a rotary distributor in the rotating housing.
  • the cutting tool has a plurality of successively arranged first spring body in the direction of the axis of rotation.
  • the force acting on the cutting element is divided into a plurality of the mentioned suspension body.
  • a portion of the above-mentioned carrier between the cutting element and the second suspension body is arranged.
  • the carrier has two sections which lie between the respective first and second suspension bodies and the cutting element.
  • the carrier has an L-shaped cross-section.
  • the cutting tool has a feed device in order to supply the suspension element with gas and in particular with compressed air.
  • this compressed air achieves the suspension of the cutting element in the radial direction and also causes the cutting element to be clamped in the housing.
  • the feed device is designed such that it supplies the spring element permanently with gas during an operating state. This is precisely by this supply of gas, the cutting element mounted in the housing.
  • At least one suspension body has a flexible membrane. About these membranes, the respective forces are applied to the cutting element.
  • the present invention is further directed to a cutting device, in particular for cutting labels, which cutting device is a cutting tool having the above-mentioned type, and cooperating with this cutting tool counter-cutting roller.
  • FIG. 1 shows a schematic representation of a device according to the invention 25 for cutting labels.
  • a cutting roller 30 is provided, which first carries an endless label strip.
  • This cutting roller has a plurality of counter cutting strips 28 which are distributed in the circumferential direction of the counter cutting roller 30.
  • this counter cutting roller has suction means for attracting the label to the outer circumference of the counter cutting roller 30.
  • the counter-cutting roller 30 rotates in a predetermined direction of rotation, here, for example, counterclockwise.
  • the reference numeral 1 refers to an inventive cutting tool, which cooperates for cutting the labels with the counter-cutting roller. More specifically, the rotation of the cutting rotor or housing 2 of the cutting tool 1 is synchronized with the rotation of the cutting roller in such a way that cutting elements 4 in each case coincide with the counter-cutting strips during the movement in order to cut the labels.
  • the cutting tool 1 has two cutting elements 4 here.
  • the cutting tool is driven by a motor (not shown), preferably with a linear motor drive.
  • FIG. 2 shows a more detailed representation of a cutting tool 1.
  • This cutting tool 1 has a housing 2, which rotates about a rotation axis X.
  • the housing can also be referred to in its entirety as a cutting rotor.
  • the housing has a recess 18 for attachment of a cutting element 4, which has a cutting edge 6, on.
  • a designated in its entirety by 10 suspension body 10 is arranged, which springs the cutting element 4 in the direction R.
  • the suspension body 10 is disposed within the cutting element 4 in a radial direction relative to the axis of rotation X direction.
  • the cutting tool 1 has a plurality of the illustrated suspension bodies 10, which are arranged one behind the other in the direction of the rotation axis X, which extends perpendicular to the plane of the figure.
  • the reference numeral 8 refers to a carrier, on the one hand contacted the suspension body 10 and on the other hand, the cutting element 4 is fixedly arranged.
  • This carrier 8 or its section 8a serves as Clamping strip for attaching the cutting element 4.
  • the cutting element 4 is clamped between the carrier 8 and a clamping bar 32.
  • This clamping bar 32 rests in turn in a recess 34 which is formed in the housing 2 and is thus not movable in the direction R.
  • This clamping bar 32 may be made of plastic, but it is preferably made of metal, in particular hard metal.
  • the carrier 8 in turn has an edge 36, which also supports the cutting element 4 in the direction R, so that the cutting element always springs together with the carrier 8 in the direction R. Furthermore, it would be conceivable that further interlocking elements are provided, which couple the movement of the cutting element 4 to the movement of the carrier 8.
  • the portion 8b of the carrier is movable in the recess 18 in the direction R and contacts the first guide body 10. Also, the carrier 8 relative to the second suspension body 20 in the direction R is movable.
  • the reference numeral 40 refers to a further strip, which is arranged via a screw 48 fixed to the carrier. About this further bar 40, a recess 52 is provided, in which a second suspension body 20 is provided. About this second suspension body 20, the maintenance of the cutting element is accomplished in the housing. More precisely, this second suspension body 20, once pressurized with compressed air, presses against the support 8, more precisely against the portion 8a of the support and thus presses the cutting element 4 in the direction P against the tensioning bar 32.
  • the suspension body 20 and 10 are acted upon with compressed air.
  • the supply may be formed as a circuit, or as a plurality of separate circuits, in which case a single control or regulation of the air pressures is possible.
  • the holder 40 not only serves to receive the suspension body 20, but also serves as a front stop for the carrier 8 and thus specifies how far the cutting element protrudes or is biased.
  • Adjusted is the position of the holder 40 relative to the carrier 2 with adjusting screws 54. After adjustment, the holder 40 is tightened with a plurality of screws 48.
  • the first suspension body 10 which also has membranes supplied with continuous air and which is arranged behind the carrier, thus has three tasks. On the one hand, it serves to push the cutting element forward again from one cut to the next. Furthermore, the cutting element should be gentle during the actual cutting process be sprung and finally also the necessary cutting force to be generated. It is possible to increase the cutting force by changing the air pressure acting on the suspension body 10. However, instead of the air-filled suspension body shown here, it would also be possible to use other adjustable spring elements, such as coil springs.
  • the arrangement of the suspension body 20 causes a clamping force which is approximately between 200 and 1500 N.
  • the spring force applied by the first suspension body 10 is in the range of 500-3000 N.
  • FIGS. 3a to 3d show several representations of a housing or rotor according to the invention 2.
  • the housing 2 is completely assembled, that is, on the housing 2 and the holder 40 is already screwed and positioned.
  • a corresponding second holder is located on the rear side (not shown) of the rotor 2, which is rotatably arranged via a shaft 14.
  • FIG. 3b one of the corresponding backs is shown, both in FIG. 3a as well as in FIG. 3b each of the pressure supply ports 22 are shown.
  • the rotor 2 is rotationally symmetrical in order to prevent imbalances during its rotation.
  • FIG. 3d figure shows a further illustration, in which case also the carrier 8 is taken out.
  • the first suspension body 10 wherein three such suspension body 10 are provided here in the direction of the axis of rotation. This first suspension body 10 cause the carrier is cushioned together with the cutting element in the radial direction.
  • FIG 4 shows a perspective view of a holder 40.
  • two suspension body 20 are provided, which are acted upon in Figure 4 from behind with compressed air.
  • the reference numeral 42 refers to a frame strip, with which the holder 40 can be screwed to the housing 2.
  • a support member 44 the suspension body 20 are fitted.
  • FIG. 5 shows a suspension body 20 or 10.
  • This suspension body 20 has a membrane 20a which is pressed outwards when the compressed air is applied.
  • a corresponding bead 20c, which forms a recess 20b together with the membrane, causes the membrane 20a to be extended out of the spring body 20.

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

Abstract

The tool (1) has a housing (2) arranged at a rotation axle (X) in a rotatable manner, and a cutting element (4) arranged at the housing. The cutting element has a cutting edge (6) extending in a direction parallel to the rotation axle. The cutting element is arranged in the housing in a detachable manner. The cutting element is movably arranged opposite to the housing. A spring body (10) provides a movement of the cutting element in a radial direction (R) of the housing. The spring body is arranged in a direction of the rotation axle between two end sections of the cutting element.

Description

Die vorliegende Erfindung bezieht sich auf ein Schneidwerkzeug zum Schneiden von Etiketten, sowie eine Schneidvorrichtung zum Schneiden von Etiketten. Aus dem Stand der Technik ist es bekannt, Behältnisse und insbesondere Flaschen mit Etiketten zu bekleben. Dabei werden Endlosrollen mit Etiketten zur Verfügung gestellt und diese Endlosrollen werden dabei an einer Gegenschneidwalze angezogen. Anschließend werden diese Endlosetiketten in einzelne Etiketten geschnitten und auf die Behältnisse aufgeklebt. Zum Schneiden dieser Etikettenstreifen weisen dabei diese Gegenschneidwalzen Gegenschneidleisten auf, die wiederum mit Messern zusammenwirken, wobei diese Messer auf einem weiteren Schneidrotor angeordnet sind. Dabei ist es erforderlich, dass die Schneidmesser möglichst exakt bzw. parallel bezüglich der Schneidleisten angeordnet sind, damit der Schneidvorgang sauber durchgeführt werden kann. Dabei tritt bei dem Stand der Technik jedoch das Problem auf, dass es zu einer zu hohen bzw. einseitigen Abnutzung der Schneidmesser kommen kann und diese anschließend ihre Funktion nicht mehr ordnungsgemäß wahrnehmen können.The present invention relates to a cutting tool for cutting labels, and a cutting device for cutting labels. From the prior art it is known to paste containers and in particular bottles with labels. This endless rolls are provided with labels and these endless rolls are attracted to a counter-cutting roll. Subsequently, these endless labels are cut into individual labels and glued to the containers. For cutting these label strips, these counter cutting rollers have counter cutting strips, which in turn interact with knives, these knives being arranged on a further cutting rotor. It is necessary that the cutting blades are arranged as exactly as possible or parallel with respect to the cutting strips so that the cutting process can be performed clean. However, in the prior art, the problem arises that it can lead to excessive or one-sided wear of the cutting blade and then their function can no longer properly perceive.

Aus der DE 20/2005 002 793 U1 ist eine Etikettiermaschine zum Etikettieren von Behältnissen bekannt. Dabei wird eine Schneideinrichtung durch eine rotierende Vakuumwalze und ein rotierendes Trennelement gebildet, wobei dieses Trennelement an dessen Außenumfang mindestens ein Trennwerkzeug und insbesondere ein Schneidmesser besitzt. Dabei ist angemerkt, dass das Trennelement im jeweiligen Trennwerkzeug federnd angeordnet ist, um den Trennvorgang schonend durchführen zu können. In der DE 20/2005 002 793 wird jedoch nicht erwähnt, wie diese federnde Anordnung ausgeführt ist, noch in welche räumliche Richtung die federnde Lagerung vorgenommen wird.From the DE 20/2005 002 793 U1 a labeling machine for labeling containers is known. In this case, a cutting device is formed by a rotating vacuum roller and a rotating separating element, wherein this separating element has on its outer circumference at least one cutting tool and in particular a cutting blade. It should be noted that the separating element in the respective separating tool resilient is arranged to perform the separation process gently. In the DE 20/2005 002 793 However, it does not mention how this resilient arrangement is executed, nor in which spatial direction the resilient mounting is made.

Aus der DE 42 09 752 C2 ist eine Vorrichtung zum Befestigung von Messern in Lochungs- und Schneidzylindern bekannt. Dabei wird eine aufblasbare Druckluftkammer verwendet, welche ein Messer in einer Auskehlung eines Zylinders festklemmt.From the DE 42 09 752 C2 a device for fixing knives in punching and cutting cylinders is known. In this case, an inflatable compressed air chamber is used, which clamps a knife in a groove of a cylinder.

Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, eine Federung für ein Schneidelement zur Verfügung zu stellen, welche derart ausgeführt ist, dass ein Schneidvorgang für eine Etikettiermaschine schonender für die Schneidmesser durchgeführt werden kann. Dies wird erfindungsgemäß durch den Gegenstand von Anspruch 1 erreicht. Vorteilhafte Ausführungsformen und Weiterbildungen sind Gegenstand der Unteransprüche.The present invention is therefore based on the object to provide a suspension for a cutting element available, which is designed such that a cutting process for a labeling machine can be performed gently for the cutting blade. This is achieved according to the invention by the subject matter of claim 1. Advantageous embodiments and further developments are the subject of the dependent claims.

Ein erfindungsgemäßes Schneidwerkzeug, welches insbesondere zum Schneiden von Etiketten vorgesehen ist, weist ein um eine Drehachse drehbares Gehäuse auf und ein an diesem Gehäuse angeordnetes Schneidelement. Dabei weist dieses Schneidelement eine Schneidkante auf, die sich im Wesentlich in einer zu der Drehachse parallelen Richtung erstreckt und das Schneidelement ist lösbar am Gehäuse angeordnet.An inventive cutting tool, which is provided in particular for cutting labels, has a housing rotatable about an axis of rotation and a housing disposed on this cutting element. In this case, this cutting element has a cutting edge which extends substantially in a direction parallel to the axis of rotation and the cutting element is detachably arranged on the housing.

Erfindungsgemäß ist das Schneidelement bewegbar gegenüber dem Gehäuse angeordnet und ein erster Federungskörper ist vorgesehen, der eine Bewegung des Schneidelements in einer im Wesentlichen radialen Richtung des Gehäuses federt.According to the invention, the cutting element is movably arranged with respect to the housing and a first suspension body is provided, which springs a movement of the cutting element in a substantially radial direction of the housing.

Unter der radialen Richtung des Gehäuses bzw. Rotors wird dabei eine radiale Richtung bezüglich der Drehachse verstanden, um die sich das Gehäuse dreht. Durch diese federnde Lagerung des Schneidelements in der radialen Richtung des Gehäuses kann einer einseitigen Abnutzung des Federungselements entgegengewirkt werden. Unter der radialen Richtung des Gehäuses werden neben einer geometrisch genau radialen Richtung des Gehäuses, die sich von dem Schneidelement zu der Drehachse erstreckt, auch solche Richtungen, verstanden, die zu dieser radialen Richtung parallel verlaufen. Auch werden unter einer Federung in radialer Richtung solche Federungen verstanden, welche eine Richtungskomponente in der radialen Richtung aufweisen.The radial direction of the housing or rotor is understood to mean a radial direction with respect to the axis of rotation about which the housing rotates. By this resilient mounting of the cutting element in the radial direction of the housing of a one-sided wear of the suspension element can be counteracted. Under the radial direction of the housing, in addition to a geometrically exactly radial direction of the housing, which extends from the cutting element to the axis of rotation, also those directions understood that are parallel to this radial direction. Also, a suspension in the radial direction is understood as meaning those suspensions which have a directional component in the radial direction.

Demnach würde beispielsweise auch ein Schneidelement, welches in einer schrägen Richtung bezüglich der radialen Richtung federt, auch eine Bewegung in der radialen Richtung aufweisen und damit auch in der radialen Richtung des Gehäuses federn.Accordingly, for example, a cutting element which springs in an oblique direction with respect to the radial direction would also have a movement in the radial direction and thus also spring in the radial direction of the housing.

Mit anderen Worten ist der Federungskörper bevorzugt in einer radialen Richtung des Gehäuses weiter innen angeordnet als das Schneidelement. Dabei ist bevorzugt der Federungskörper auf einer geometrischen Linie zwischen einem Bereich des Schneidelements und der Drehachse zwischen dem Schneidelement und der Drehachse angeordnet. Es wäre jedoch auch möglich, dass der Federungskörper seitlich gegenüber dieser geometrischen Linie versetzt ist. Bevorzugt ist das Schneidwerkzeug um 360° drehbar, es wäre jedoch auch möglich, nur geringere Drehwinkel zuzulassen.In other words, the suspension body is preferably arranged inwardly in a radial direction of the housing than the cutting element. In this case, the suspension body is preferably arranged on a geometrical line between a region of the cutting element and the axis of rotation between the cutting element and the axis of rotation. However, it would also be possible that the suspension body is offset laterally relative to this geometric line. Preferably, the cutting tool is rotatable through 360 °, but it would also be possible to allow only lower rotation angle.

Bei einer weiteren vorteilhaften Ausführungsform ist der Federungskörper in der Richtung der Drehachse zwischen den beiden Endabschnitten des Schneidelements angeordnet. Damit ist der Federungskörper bevorzugt im Inneren des Gehäuses vorgesehen.In a further advantageous embodiment, the suspension body is arranged in the direction of the axis of rotation between the two end portions of the cutting element. In order to the suspension body is preferably provided in the interior of the housing.

Bei einer weiteren vorteilhaften Ausführungsform weist der Federungskörper ein gasgefülltes Federungselement auf. Genauer gesagt, weist der Federungsköper hier ein Luftkissen auf, welches bei Beaufschlagung mit Druckluft wiederum eine Kraft auf das Schneidelement ausübt. Durch die Wahl des Drucks dieser Druckluft kann auch die Vorspannkraft des Schneidelements radial nach außen eingestellt werden. Durch diese Halterung des Federelements kann erreicht werden, dass nur eine vorgegebene Maximalkraft durch das Federelement aufgebracht wird und bei einer darüber hinaus gehenden Kraft das Schneidelement zurückfedert. Damit kann eine Kraft gewählt werden, die zwar ausreichend ist, um die Etiketten zu schneiden, die jedoch gering genug ist, um eine vorzeitige Abnutzung des Schneidelements und insbesondere der Schneidkante zu verhindern. Bevorzugt werden mit dem erfindungsgemäßen Schneidwerkzeug die Etiketten nicht im eigentlichen Sinne geschnitten sondern durchgepresst.In a further advantageous embodiment, the suspension body has a gas-filled suspension element. More specifically, the suspension body here on an air cushion, which in turn exerts a force on the cutting element upon application of compressed air. By choosing the pressure of this compressed air and the biasing force of the cutting element can be adjusted radially outward. By this holder of the spring element can be achieved that only a predetermined maximum force is applied by the spring element and the spring returns the cutting element in a going beyond. Thus, a force can be selected which, while sufficient to cut the labels, is small enough to prevent premature wear of the cutting element and in particular the cutting edge. Preferably, with the cutting tool according to the invention, the labels are not cut in the true sense but pressed through.

Eine vorteilhafte Weiterbildung der Erfindung besteht darin, den Federungskörper dauerluftversorgt auszubilden. Das heißt, dass der Federungskörper ständig mit einer Luftzufuhr in Kontakt steht, die, bei Bedarf, Druckluft nachführen kann. Die Luftzufuhr ist vorzugsweise regelbar, sodass durch die Erzeugung von unterschiedlichen Drücken im Federungskörper verschiedene Federungseigenschaften abgebildet werden können.An advantageous development of the invention is to form the suspension body permanently supplied with air. This means that the suspension body is constantly in contact with an air supply, which, if necessary, can track compressed air. The air supply is preferably adjustable, so that different suspension properties can be represented by the generation of different pressures in the suspension body.

Bei einer weiteren vorteilhaften Ausführungsform ist das Schneidelement in einer an einem Außenumfang des Gehäuses vorgesehener Ausnehmung angeordnet. Diese Ausnehmung erstreckt sich dabei bevorzugt radial nach innen.In a further advantageous embodiment, the cutting element is arranged in a recess provided on an outer circumference of the housing. This recess preferably extends radially inwards.

Vorteilhaft ist zwischen dem Schneidelement und dem ersten Federungskörper ein Träger vorgesehen, der das Schneidelement und den ersten Federungskörper berührt. Damit wird das Schneidelement nicht direkt von dem ersten Federungskörper berührt, sondern die Kraft, welche der Federungskörper auf das Schneidelement aufbringt, wird über den Träger übertragen. Durch diesen Träger kann die Führung des Schneidelements verbessert werden.Advantageously, a carrier is provided between the cutting element and the first suspension body, which contacts the cutting element and the first suspension body. Thus, the cutting element is not touched directly by the first suspension body, but the force which applies the suspension body to the cutting element is transmitted via the carrier. By this carrier, the leadership of the cutting element can be improved.

Bei einer weiteren vorteilhaften Ausführungsform weist das Schneidwerkzeug einen zweiten Federungskörper auf, der das Schneidelement in einer Umfangsrichtung des Gehäuses gegenüber dem Gehäuse vorspannt bzw. befestigt. Bei dieser Ausführungsform befindet sich das Schneidelement in der oben erwähnten Nut des Gehäuses bzw. des Schneidrotors. Über diesen zweiten Federungskörper und bevorzugt auch über eine Druckleiste wird das Schneidelement eingespannt, sobald Luft auf den zweiten Federungskörper aufgebracht wird.In a further advantageous embodiment, the cutting tool has a second suspension body, which pretensions or secures the cutting element in a circumferential direction of the housing relative to the housing. In this embodiment, the cutting element is in the above-mentioned groove of the housing or of the cutting rotor. About this second suspension body and preferably via a pressure bar, the cutting element is clamped as soon as air is applied to the second suspension body.

Bei einer weitern vorteilhaften Ausführungsform weist damit auch der zweite Federungskörper ein gasgefülltes Federungselement auf. Der zweite Federungskörper wird mit Dauerluft versorgt, welche vorzugsweise durch einen Drehverteiler in das rotierende Gehäuse eingeleitet wird.In a further advantageous embodiment, the second suspension body thus also has a gas-filled suspension element. The second suspension body is supplied with continuous air, which is preferably introduced through a rotary distributor in the rotating housing.

Bei einer weiteren vorteilhaften Ausführungsform weist das Schneidwerkzeug in der Richtung der Drehachse mehrere hintereinander angeordnete erste Federungskörper auf. Damit wird die auf das Schneidelement wirkende Kraft auf eine Vielzahl der erwähnten Federungskörper aufgeteilt.In a further advantageous embodiment, the cutting tool has a plurality of successively arranged first spring body in the direction of the axis of rotation. Thus, the force acting on the cutting element is divided into a plurality of the mentioned suspension body.

Bei einer weiteren vorteilhaften Ausführungsform ist ein Abschnitt des oben erwähnten Trägers zwischen dem Schneidelement und dem zweiten Federungskörper angeordnet. Damit weist bei dieser bevorzugten Ausführungsform der Träger zwei Abschnitte auf, welche zwischen den jeweiligen ersten und zweiten Federungskörpern und dem Schneidelement liegen.In a further advantageous embodiment, a portion of the above-mentioned carrier between the cutting element and the second suspension body is arranged. Thus, in this preferred embodiment, the carrier has two sections which lie between the respective first and second suspension bodies and the cutting element.

Vorzugsweise weist bei dieser Ausführungsform der Träger einen L-förmigen Querschnitt auf.Preferably, in this embodiment, the carrier has an L-shaped cross-section.

Bei einer weiteren vorteilhaften Ausführungsform weist das Schneidwerkzeug eine Zuführeinrichtung auf, um das Federungselement mit Gas und insbesondere mit Druckluft zu versorgen. Durch diese Druckluft wird, wie oben erwähnt, einerseits die Federung des Schneidelementes in der radialen Richtung erreicht und auch ein Einspannen des Schneidelements in das Gehäuse bewirkt.In a further advantageous embodiment, the cutting tool has a feed device in order to supply the suspension element with gas and in particular with compressed air. As mentioned above, this compressed air, on the one hand, achieves the suspension of the cutting element in the radial direction and also causes the cutting element to be clamped in the housing.

Bei einer weiteren vorteilhaften Ausführungsform ist die Zuführeinrichtung derart gestaltet, dass sie das Federelement während eines Betriebszustandes dauerhaft mit Gas versorgt. Damit wird genau durch dieses Versorgen mit Gas das Schneidelement in dem Gehäuse befestigt.In a further advantageous embodiment, the feed device is designed such that it supplies the spring element permanently with gas during an operating state. This is precisely by this supply of gas, the cutting element mounted in the housing.

Bei einer weiteren vorteilhaften Ausführungsform weist wenigstens ein Federungskörper eine flexible Membran auf. Über diese Membranen werden die jeweiligen Kräfte auf das Schneidelement aufgebracht.In a further advantageous embodiment, at least one suspension body has a flexible membrane. About these membranes, the respective forces are applied to the cutting element.

Die vorliegende Erfindung ist weiterhin auf eine Schneidvorrichtung, insbesondere zum Schneiden von Etiketten gerichtet, wobei diese Schneidvorrichtung ein Schneidwerkzeug der oben erwähnten Art aufweist, sowie eine mit diesem Schneidwerkzeug zusammenwirkende Gegenschneidwalze.The present invention is further directed to a cutting device, in particular for cutting labels, which cutting device is a cutting tool having the above-mentioned type, and cooperating with this cutting tool counter-cutting roller.

Weitere Vorteile und Ausführungsformen ergeben sich aus den beigefügten Zeichnungen: Darin zeigen:

Fig. 1
eine schematische Darstellung einer erfindungsgemäßen Vorrichtung zum Schneiden von Etiketten;
Fig. 2
eine detaillierte Darstellung eines erfindungsgemäßen Schneidwerkzeugs;
Fig. 3a - 3d
vier Ansichten eines erfindungsgemäßen Schneidwerkzeugs;
Fig. 4
eine perspektivische Darstellung eines Elements eines Schneidwerkzeugs; und
Fig. 5
eine perspektivische Darstellung eines Federungskörpers.
Further advantages and embodiments will be apparent from the attached drawings, in which:
Fig. 1
a schematic representation of a device according to the invention for cutting labels;
Fig. 2
a detailed illustration of a cutting tool according to the invention;
Fig. 3a - 3d
four views of a cutting tool according to the invention;
Fig. 4
a perspective view of an element of a cutting tool; and
Fig. 5
a perspective view of a suspension body.

Figur 1 zeigt eine schematische Darstellung einer erfindungsgemäßen Vorrichtung 25 zum Schneiden von Etiketten. Dabei ist eine Schneidwalze 30 vorgesehen, welche zunächst einen Endlos-Etikettenstreifen trägt. Diese Schneidwalze weist eine Vielzahl von Gegenschneidleisten 28 auf, die in der Umfangsrichtung der Gegenschneidwalze 30 verteilt sind. Weiterhin weist diese Gegenschneidwalze Ansaugeinrichtungen auf, um das Etikett an dem Außenumfang der Gegenschneidwalze 30 anzuziehen. Im Betrieb dreht sich die Gegenschneidwalze 30 in einer vorgegebenen Drehrichtung, hier beispielsweise entgegen dem Uhrzeigersinn. FIG. 1 shows a schematic representation of a device according to the invention 25 for cutting labels. In this case, a cutting roller 30 is provided, which first carries an endless label strip. This cutting roller has a plurality of counter cutting strips 28 which are distributed in the circumferential direction of the counter cutting roller 30. Further, this counter cutting roller has suction means for attracting the label to the outer circumference of the counter cutting roller 30. In operation, the counter-cutting roller 30 rotates in a predetermined direction of rotation, here, for example, counterclockwise.

Das Bezugszeichen 1 bezieht sich auf ein erfindungsgemäßes Schneidwerkzeug, welches zum Schneiden der Etiketten mit der Gegenschneidwalze zusammenwirkt. Genauer gesagt ist die Drehung des Schneidrotors bzw. Gehäuses 2 des Schneidwerkzeugs 1 derart auf die Drehung der Schneidwalze synchronisiert, dass Schneidelemente 4 jeweils bei der Bewegung mit den Gegenschneidleisten zusammentreffen, um die Etiketten zu schneiden. Das Schneidwerkzeug 1 weist hier zwei Schneidelemente 4 auf. Das Schneidwerkzeug wird von einem (nicht gezeigten) Motor, bevorzugt mit Linearmotorantrieb, angetrieben.The reference numeral 1 refers to an inventive cutting tool, which cooperates for cutting the labels with the counter-cutting roller. More specifically, the rotation of the cutting rotor or housing 2 of the cutting tool 1 is synchronized with the rotation of the cutting roller in such a way that cutting elements 4 in each case coincide with the counter-cutting strips during the movement in order to cut the labels. The cutting tool 1 has two cutting elements 4 here. The cutting tool is driven by a motor (not shown), preferably with a linear motor drive.

Figur 2 zeigt eine detailliertere Darstellung eines Schneidwerkzeugs 1. Dieses Schneidwerkzeug 1 weist ein Gehäuse 2 auf, welches sich um eine Drehachse X dreht. Das Gehäuse kann dabei auch in seiner Gesamtheit als Schneidrotor bezeichnet werden. Das Gehäuse weist eine Ausnehmung 18 zur Anbringung eines Schneidelements 4, welches eine Schneidkante 6 aufweist, auf. In dieser Ausnehmung ist einer in seiner Gesamtheit mit 10 bezeichneter Federungskörper 10 angeordnet, welcher das Schneidelement 4 in der Richtung R federt. Dabei ist der Federungskörper 10 in einer bezüglich der Drehachse X radialen Richtung innerhalb des Schneidelements 4 angeordnet. Genauer gesagt weist das Schneidwerkzeug 1 mehrere der gezeigten Federungskörper 10 auf, die in Richtung der Drehachse X, die sich senkrecht zur Figurenebene erstreckt, hintereinander angeordnet sind. FIG. 2 shows a more detailed representation of a cutting tool 1. This cutting tool 1 has a housing 2, which rotates about a rotation axis X. The housing can also be referred to in its entirety as a cutting rotor. The housing has a recess 18 for attachment of a cutting element 4, which has a cutting edge 6, on. In this recess, a designated in its entirety by 10 suspension body 10 is arranged, which springs the cutting element 4 in the direction R. In this case, the suspension body 10 is disposed within the cutting element 4 in a radial direction relative to the axis of rotation X direction. More specifically, the cutting tool 1 has a plurality of the illustrated suspension bodies 10, which are arranged one behind the other in the direction of the rotation axis X, which extends perpendicular to the plane of the figure.

Das Bezugszeichen 8 bezieht sich auf einen Träger, der einerseits den Federungskörper 10 kontaktiert und an dem andererseits das Schneidelement 4 fest angeordnet ist. Damit dient dieser Träger 8 bzw. dessen Abschnitt 8a als Spannleiste zum Befestigen des Schneidelements 4. Das Schneidelement 4 wird zwischen dem Träger 8 und einer Spannleiste 32 eingeklemmt. Diese Spannleiste 32 ruht dabei wiederum in einer Ausnehmung 34, die in dem Gehäuse 2 gebildet ist und ist damit in der Richtung R nicht bewegbar ist. Diese Spannleiste 32 kann dabei aus Kunststoff hergestellt sein, bevorzugt ist sie jedoch aus Metall, insbesondere Hartmetall hergestellt. Der Träger 8 weist wiederum eine Kante 36 auf, die ebenfalls das Schneidelement 4 in der Richtung R abstützt, so dass das Schneidelement stets gemeinsam mit dem Träger 8 in der Richtung R federt. Weiterhin wäre es denkbar, dass weitere ineinander greifende Elemente vorgesehen sind, welche die Bewegung des Schneidelementes 4 an die Bewegung des Trägers 8 koppeln.The reference numeral 8 refers to a carrier, on the one hand contacted the suspension body 10 and on the other hand, the cutting element 4 is fixedly arranged. This carrier 8 or its section 8a serves as Clamping strip for attaching the cutting element 4. The cutting element 4 is clamped between the carrier 8 and a clamping bar 32. This clamping bar 32 rests in turn in a recess 34 which is formed in the housing 2 and is thus not movable in the direction R. This clamping bar 32 may be made of plastic, but it is preferably made of metal, in particular hard metal. The carrier 8 in turn has an edge 36, which also supports the cutting element 4 in the direction R, so that the cutting element always springs together with the carrier 8 in the direction R. Furthermore, it would be conceivable that further interlocking elements are provided, which couple the movement of the cutting element 4 to the movement of the carrier 8.

Der Abschnitt 8b des Trägers ist in der Ausnehmung 18 in der Richtung R bewegbar und kontaktiert den ersten Führungskörper 10. Auch ist der Träger 8 gegenüber dem zweiten Federungskörper 20 in der Richtung R bewegbar.The portion 8b of the carrier is movable in the recess 18 in the direction R and contacts the first guide body 10. Also, the carrier 8 relative to the second suspension body 20 in the direction R is movable.

Das Bezugszeichen 40 bezieht sich auf eine weitere Leiste, die über eine Schraubverbindung 48 fest an dem Träger angeordnet ist. Über diese weitere Leiste 40 ist eine Ausnehmung 52 vorgesehen, in der ein zweiter Federungskörper 20 vorgesehen ist. Über diesen zweiten Federungskörper 20 wird der Halt des Schneidelements in dem Gehäuse bewerkstelligt. Genauer gesagt, drückt dieser zweite Federungskörper 20, sobald er mit Druckluft beaufschlagt ist, gegen den Träger 8, genauer gesagt, gegen den Abschnitt 8a des Trägers und presst damit das Schneidelement 4 in der Richtung P gegen die Spannleiste 32.The reference numeral 40 refers to a further strip, which is arranged via a screw 48 fixed to the carrier. About this further bar 40, a recess 52 is provided, in which a second suspension body 20 is provided. About this second suspension body 20, the maintenance of the cutting element is accomplished in the housing. More precisely, this second suspension body 20, once pressurized with compressed air, presses against the support 8, more precisely against the portion 8a of the support and thus presses the cutting element 4 in the direction P against the tensioning bar 32.

Über eine Luftzuführeinrichtung 22 werden die Federungskörper 20 bzw. 10 mit Druckluft beaufschlagt. Dabei kann die Zuführung als ein Kreislauf ausgebildet sein, oder als mehrere getrennte Kreisläufe, wobei dann eine einzelne Ansteuerung bzw. Regelung der Luftdrücke möglich ist.Via an air supply device 22, the suspension body 20 and 10 are acted upon with compressed air. In this case, the supply may be formed as a circuit, or as a plurality of separate circuits, in which case a single control or regulation of the air pressures is possible.

Damit wird insgesamt das Schneidelement 4 über die Spannleiste 32 und Membranen des zweiten Federungskörpers 20, der in eine Halterung 40 eingelassen ist, fest eingespannt, sobald der zweite Federungskörper 20 mit Druckluft beaufschlagt wird, d. h. sobald Luft auf eine Membran dieses zweiten Federungskörpers 20 gegeben wird. Im Betrieb wird diese Membran mit Dauerluft versorgt, welche durch einen Drehverteiler in den rotierenden Rotor bzw. des Gehäuses 2 eingeleitet wird. Über Verschraubungen und Schläuche gelangt die Luft zu dem Federungskörper 20. Für einen Messerwechsel ist einfach die Druckluft abzuschalten.Thus, a total of the cutting element 4 via the clamping bar 32 and membranes of the second suspension body 20, which is embedded in a holder 40, firmly clamped as soon as the second suspension body 20 is acted upon with compressed air, d. H. as soon as air is added to a membrane of this second suspension body 20. In operation, this membrane is supplied with continuous air, which is introduced through a rotary distributor in the rotating rotor or the housing 2. About fittings and hoses, the air reaches the suspension body 20. For a blade change is easy to turn off the compressed air.

Die Halterung 40 dient nicht nur dazu, den Federungskörper 20 aufzunehmen, sondern dient auch als vorderer Anschlag für den Träger 8 und gibt damit vor, wie weit das Schneidelement vorsteht bzw. vorgespannt wird.The holder 40 not only serves to receive the suspension body 20, but also serves as a front stop for the carrier 8 and thus specifies how far the cutting element protrudes or is biased.

Eingestellt wird die Position der Halterung 40 gegenüber dem Träger 2 mit Einstellschrauben 54. Nach dem Einstellen wird die Halterung 40 mit mehreren Schrauben 48 fest angezogen.Adjusted is the position of the holder 40 relative to the carrier 2 with adjusting screws 54. After adjustment, the holder 40 is tightened with a plurality of screws 48.

Der erste Federungskörper 10, der ebenfalls mit Dauerluft versorgte Membranen aufweist und der hinter dem Träger angeordnet ist, hat damit drei Aufgaben. Einerseits dient er dazu, das Schneidelement von einem Schnitt zum nächsten wieder nach vorne zu drücken. Weiterhin soll das Schneidelement während des eigentlichen Schneidvorgangs sanft gefedert werden und schließlich soll auch die nötige Schnittkraft erzeugt werden. Dabei ist es möglich, die Schnittkraft durch eine Veränderung des auf den Federungskörper 10 wirkenden Luftdrucks zu erhöhen. Anstelle der hier dargestellten luftgefüllten Federungskörper wäre es jedoch auch möglich, andere einstellbare Federelemente, wie beispielsweise Spiralfedern, zu verwenden.The first suspension body 10, which also has membranes supplied with continuous air and which is arranged behind the carrier, thus has three tasks. On the one hand, it serves to push the cutting element forward again from one cut to the next. Furthermore, the cutting element should be gentle during the actual cutting process be sprung and finally also the necessary cutting force to be generated. It is possible to increase the cutting force by changing the air pressure acting on the suspension body 10. However, instead of the air-filled suspension body shown here, it would also be possible to use other adjustable spring elements, such as coil springs.

Die Anordnung der Federungskörper 20 bewirkt eine Spannkraft, die ungefähr zwischen 200 und 1500 N liegt. Die durch den ersten Federungskörper 10 aufgebrachte Federkraft liegt im Bereich von 500 - 3000 N.The arrangement of the suspension body 20 causes a clamping force which is approximately between 200 and 1500 N. The spring force applied by the first suspension body 10 is in the range of 500-3000 N.

Die Figuren 3a bis 3d zeigen mehrere Darstellungen eines erfindungsgemäßen Gehäuses bzw. Rotors 2. Bei der in Figur 3a gezeigten Darstellung ist das Gehäuse 2 vollständig zusammengesetzt, d. h. an dem Gehäuse 2 ist auch die Halterung 40 bereits angeschraubt und positioniert. Eine entsprechende zweite Halterung befindet sich auf der (nicht gezeigten) Rückseite des Rotors 2, der über eine Welle 14 drehbar angeordnet ist.The FIGS. 3a to 3d show several representations of a housing or rotor according to the invention 2. In the in FIG. 3a As shown, the housing 2 is completely assembled, that is, on the housing 2 and the holder 40 is already screwed and positioned. A corresponding second holder is located on the rear side (not shown) of the rotor 2, which is rotatably arranged via a shaft 14.

In Figur 3b ist eine der entsprechenden Rückseiten gezeigt, wobei sowohl in Figur 3a als auch in Figur 3b jeweils die Druckzuführungsanschlüsse 22 dargestellt sind.In FIG. 3b one of the corresponding backs is shown, both in FIG. 3a as well as in FIG. 3b each of the pressure supply ports 22 are shown.

Bevorzugt ist der Rotor 2 rotationssymmetrisch ausgebildet, um bei seiner Drehung Umwuchten zu verhindern.Preferably, the rotor 2 is rotationally symmetrical in order to prevent imbalances during its rotation.

In Figur 3c ist die Halterung 40 abgenommen, so dass die darunterliegenden zweiten Federungskörper 20 erkennbar sind. Diese zweiten Federungskörper 20 wirken, wie oben gesagt, zwischen der Halterung 40 und dem Träger 8 und bewirkten damit ein Vorspannen des Schneidelements 4 in dem Gehäuse 2. Hier sind weitere Federungskörper vorgesehen.In Figure 3c the holder 40 is removed, so that the underlying second suspension body 20 can be seen. These second suspension body 20 act, as stated above, between the holder 40 and the carrier 8 and caused Thus, a biasing of the cutting element 4 in the housing 2. Here are more suspension body provided.

Figur 3d zeigt eine weitere Darstellung, wobei hier auch der Träger 8 herausgenommen ist. Man erkennt hier die ersten Federungskörper 10, wobei hier in der Richtung der Drehachse drei derartige Federungskörper 10 vorgesehen sind. Diese ersten Federungskörper 10 bewirken, dass der Träger gemeinsam mit dem Schneidelement in der radialen Richtung abgefedert wird. 3d figure shows a further illustration, in which case also the carrier 8 is taken out. It can be seen here, the first suspension body 10, wherein three such suspension body 10 are provided here in the direction of the axis of rotation. This first suspension body 10 cause the carrier is cushioned together with the cutting element in the radial direction.

Figur 4 zeigt eine perspektivische Darstellung einer Halterung 40. In dieser Halterung sind zwei Federungskörper 20 vorgesehen, die in Figur 4 von hinten mit Druckluft beaufschlagt werden. Das Bezugszeichen 42 bezieht sich auf eine Rahmenleiste, mit der die Halterung 40 an dem Gehäuse 2 angeschraubt werden kann. In einem Tragteil 44 sind die Federungskörper 20 eingepasst.Figure 4 shows a perspective view of a holder 40. In this holder, two suspension body 20 are provided, which are acted upon in Figure 4 from behind with compressed air. The reference numeral 42 refers to a frame strip, with which the holder 40 can be screwed to the housing 2. In a support member 44, the suspension body 20 are fitted.

Figur 5 zeigt einen Federungskörper 20 bzw. 10. Dieser Federungskörper 20 weist eine Membran 20a auf, die bei Druckluftbeaufschlagung nach außen gedrückt wird. Ein entsprechender Wulst 20c, der gemeinsam mit der Membran eine Ausnehmung 20b bildet, bewirkt, dass die Membran 20a aus dem Federungskörper 20 ausgefahren werden kann.FIG. 5 shows a suspension body 20 or 10. This suspension body 20 has a membrane 20a which is pressed outwards when the compressed air is applied. A corresponding bead 20c, which forms a recess 20b together with the membrane, causes the membrane 20a to be extended out of the spring body 20.

Sämtliche in den Anmeldungsunterlagen offenbarten Merkmale werden als erfindungswesentlich beansprucht, sofern sie einzeln oder in Kombination gegenüber dem Stand der Technik neu sind.All disclosed in the application documents features are claimed as essential to the invention, provided they are new individually or in combination over the prior art.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Schneidwerkzeugcutting tool
22
Gehäusecasing
44
Schneidelementcutting element
66
Schneidkantecutting edge
88th
Trägercarrier
8a, 8b8a, 8b
Abschnitt des TrägersSection of the carrier
1010
erster Federungskörperfirst suspension body
1414
Wellewave
1818
Ausnehmungrecess
2020
zweiter Federungskörpersecond suspension body
20a20a
Membranmembrane
20b20b
Ausnehmungrecess
20c20c
Wulstbead
2222
Luftzuführeinrichtungair supply
2828
GegenschneidleistenCounter-cutting bars
3030
Schneidwalzecutting roller
3232
Spannleisteclamping bar
3434
Ausnehmungrecess
3636
Kanteedge
4040
Halterungbracket
4242
Rahmenleisteframe strip
4444
Tragteilsupporting part
4848
Schraubverbindungscrew
5252
Ausnehmungrecess
5454
Einstellschraubenadjustment
RR
Richtungdirection
XX
Drehachseaxis of rotation
PP
Richtungdirection

Claims (14)

Schneidwerkzeug (1), insbesondere zum Schneiden von Etiketten mit einem um eine Drehachse (X) drehbar angeordneten Gehäuse (2) und einem an diesem Gehäuse (2) angeordneten Schneidelement (4), wobei dieses Schneidelement (4) eine Schneidkante (6) aufweist, die sich im Wesentlichen in einer zu der Drehachse (X) parallelen Richtung erstreckt, und wobei dieses Schneidelement (4) lösbar an dem Gehäuse (2) angeordnet ist, dadurch gekennzeichnet, dass das Schneidelement (4) beweglich gegenüber dem Gehäuse (2) angeordnet ist und ein erster Federungskörper (10) vorgesehen ist, der eine Bewegung des Schneidelements (4) in einer radialen Richtung (R) des Gehäuses (2) federt.Cutting tool (1), in particular for cutting labels with a housing (2) arranged rotatably about a rotation axis (X) and a cutting element (4) arranged on this housing (2), this cutting element (4) having a cutting edge (6) which extends substantially in a direction parallel to the axis of rotation (X), and which cutting element (4) is detachably mounted on the housing (2), characterized in that the cutting element (4) is movable relative to the housing (2). is arranged and a first suspension body (10) is provided which springs a movement of the cutting element (4) in a radial direction (R) of the housing (2). Schneidwerkzeug (1) nach Anspruch 1, dadurch gekennzeichnet, dass der erste Federungskörper (10) in Richtung der Drehachse (X) zwischen zwei Endabschnitten des Schneidelements (4) angeordnet istCutting tool (1) according to claim 1, characterized in that the first suspension body (10) in the direction of the axis of rotation (X) between two end portions of the cutting element (4) is arranged Schneidwerkzeug (1) nach wenigstens einem der vorangegangenen Ansprüche , dadurch gekennzeichnet, dass der Federungskörper (10) ein gasgefülltes Federungselement aufweist.Cutting tool (1) according to at least one of the preceding claims, characterized in that the suspension body (10) comprises a gas-filled suspension element. Schneidwerkzeug (1) nach wenigstens einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, dass das Schneidelement (4) in einer an einem Außenumfang des Gehäuses vorgesehenen Ausnehmung (14) angeordnet ist.Cutting tool (1) according to at least one of the preceding claims, characterized in that the cutting element (4) is arranged in a recess (14) provided on an outer circumference of the housing. Schneidwerkzeug (1) nach wenigstens einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, dass zwischen dem Schneidelement (4) und dem ersten Federungskörper (10) ein Träger (8) vorgesehen ist, der das Schneidelement (4) und den ersten Federungskörper (10) berührt.Cutting tool (1) according to at least one of the preceding claims, characterized in that between the cutting element (4) and the first suspension body (10) a support (8) is provided which contacts the cutting element (4) and the first suspension body (10) , Schneidwerkzeug (1) nach wenigstens einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, dass das Schneidwerkzeug (1) einen zweiten Federungskörper (20) aufweist, der das Schneidelement (4) in einer Umfangsrichtung des Gehäuses (2) gegenüber dem Gehäuse (2) vorspannt.Cutting tool (1) according to at least one of the preceding claims, characterized in that the cutting tool (1) has a second suspension body (20) which biases the cutting element (4) in a circumferential direction of the housing (2) relative to the housing (2). Schneidwerkzeug (1) nach Anspruch 5, dadurch gekennzeichnet, dass der zweite Federungskörper (20) ein gasgefülltes Federungselement aufweist.Cutting tool (1) according to claim 5, characterized in that the second suspension body (20) comprises a gas-filled suspension element. Schneidwerkzeug (1) nach wenigstens einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, dass das Schneidwerkzeug (1) in der der Richtung der Drehachse (X) mehrere hintereinander angeordnete erste Federungskörper (10) aufweist.Cutting tool (1) according to at least one of the preceding claims, characterized in that the cutting tool (1) in the direction of the axis of rotation (X) has a plurality of successively arranged first spring body (10). Schneidwerkzeug (1) nach wenigstens einem der vorangegangenen Ansprüche 5 - 7, dadurch gekennzeichnet, dass ein Abschnitt des Trägers (8) zwischen dem Schneidelement (4) und dem zweiten Federungskörper (20) angeordnet ist.Cutting tool (1) according to at least one of the preceding claims 5-7, characterized in that a portion of the carrier (8) between the cutting element (4) and the second suspension body (20) is arranged. Schneidwerkzeug (1) nach wenigstens einem der vorangegangenen Ansprüche 5 - 7, dadurch gekennzeichnet, dass der Träger (8) einen L - förmigen Querschnitt aufweist.Cutting tool (1) according to at least one of the preceding claims 5-7, characterized in that the carrier (8) has an L-shaped cross-section having. Schneidwerkzeug (1) nach wenigstens einem der vorangegangenen Ansprüche 5 - 7, dadurch gekennzeichnet, dass das Schneidwerkzeug (1) eine Zuführeinrichtung (22) aufweist, um das Federungselement mit Gas zu versorgen.Cutting tool (1) according to at least one of the preceding claims 5-7, characterized in that the cutting tool (1) has a feed device (22) in order to supply the suspension element with gas. Schneidwerkzeug (1) nach Anspruch 10, dadurch gekennzeichnet, dass die Zuführeinrichtung (22) derart gestaltet ist, dass sie das Federungselement während eines Betriebszustands dauerhaft mit Gas versorgt.Cutting tool (1) according to claim 10, characterized in that the feed device (22) is designed such that it supplies the suspension element during an operating state permanently with gas. Schneidwerkzeug (1) nach wenigstens einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, dass wenigstens ein Federungskörper (10,20) eine flexible Membrane (18) aufweist.Cutting tool (1) according to at least one of the preceding claims, characterized in that at least one spring body (10, 20) has a flexible membrane (18). Schneidvorrichtung (25), insbesondere zum Schneiden von Etiketten mit einem Schneidwerkzeug (1) nach wenigstens einem der vorangegangenen Ansprüche und mit einer mit dem Schneidwerkzeug (1) zusammenwirkenden Gegenschneidwalze (25).Cutting device (25), in particular for cutting labels with a cutting tool (1) according to at least one of the preceding claims and with a counter-cutting roller (25) cooperating with the cutting tool (1).
EP20080170412 2007-12-05 2008-12-02 Cutting tool to cut labels Active EP2067701B1 (en)

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DE200710058816 DE102007058816A1 (en) 2007-12-05 2007-12-05 Cutting tool for cutting labels

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EP2067701B1 EP2067701B1 (en) 2011-11-16

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JP (1) JP5462475B2 (en)
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US20090145276A1 (en) 2009-06-11
JP5462475B2 (en) 2014-04-02
CN101450488B (en) 2012-10-31
CN101450488A (en) 2009-06-10
DE102007058816A1 (en) 2009-06-10
JP2009137005A (en) 2009-06-25
EP2067701B1 (en) 2011-11-16

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