EP2221154B1 - Outil de coupe destiné à la coupe d'étiquettes - Google Patents

Outil de coupe destiné à la coupe d'étiquettes Download PDF

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Publication number
EP2221154B1
EP2221154B1 EP10153773.6A EP10153773A EP2221154B1 EP 2221154 B1 EP2221154 B1 EP 2221154B1 EP 10153773 A EP10153773 A EP 10153773A EP 2221154 B1 EP2221154 B1 EP 2221154B1
Authority
EP
European Patent Office
Prior art keywords
cutting
housing
cutting tool
recess
loading
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP10153773.6A
Other languages
German (de)
English (en)
Other versions
EP2221154A3 (fr
EP2221154A2 (fr
Inventor
Thomas Lang
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 EP2221154A2 publication Critical patent/EP2221154A2/fr
Publication of EP2221154A3 publication Critical patent/EP2221154A3/fr
Application granted granted Critical
Publication of EP2221154B1 publication Critical patent/EP2221154B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • B26D7/2614—Means for mounting 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
    • 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
    • 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
    • Y10T83/929—Tool or tool with support
    • Y10T83/9457—Joint or connection
    • Y10T83/9461—Resiliently biased connection
    • 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
    • Y10T83/929—Tool or tool with support
    • Y10T83/9457—Joint or connection
    • Y10T83/9464—For rotary tool

Definitions

  • the present invention relates to a cutting tool, in particular for cutting labels.
  • a cutting tool in particular for cutting labels.
  • it is common to label containers for drinks. It is both known that self-adhesive labels are attached to the containers as well as that labels are connected by means of a glue with the containers. In both cases, these labels can be rolled from rolls, then cut and mounted in this cut form on the container.
  • a cutting rotor which cooperates with a roller and cuts the labels in each case at predetermined intervals.
  • cutting blades are mounted or clamped on this cutting rotor. Inaccurate positioning of these cutting blades can quickly lead to unilateral wear of these cutting blades during operation. Also, in devices known from the prior art, the changeover times for such cutting blades are often considerable.
  • a device for cutting material is known.
  • a cutting blade is provided as well as two complementary trained and interlocking clamping strips which are pressed apart by an inflatable medium, wherein the cutting blade is clamped by the pressing apart of these two clamping strips.
  • this device is relatively complicated to handle since the two are intertwined joined strips must be matched very closely to one another to achieve precise guidance and on the other hand to prevent tilting of these two strips against each other.
  • the present invention is therefore an object of the invention to provide a cutting tool available, which is compared to the described prior art cheaper to produce and simpler. This is inventively achieved by a cutting tool according to claim 1.
  • Advantageous embodiments and further developments are the subject of the dependent claims.
  • a cutting tool according to the invention in particular for cutting labels, has a housing arranged rotatably about a rotation axis and a cutting element arranged on this housing, this cutting element having a cutting edge which extends substantially in a direction parallel to the axis of rotation. Furthermore, this cutting element is detachably arranged in a recess formed by a plurality of walls of the housing recess of the housing.
  • a loading body is provided in the recess, which loads the cutting element in a working operation in a loading direction for holding the cutting element on the housing and a suspension element which exerts a force on the loading body in the loading direction in the working operation of the cutting tool.
  • this loading body is guided by a guide surface relative to the housing and this guide surface extends in a plane to which the axis of rotation is parallel.
  • the guide surface is the only to the rotation axis parallel guide surface, which guides the movement of the loading body in the loading direction P with respect to the housing.
  • said plane is parallel to a plane which is driven by the loading direction and the axis of rotation.
  • the housing is in particular the so-called cutting rotor on which at least one cutting element and preferably two or more cutting elements are arranged.
  • the cutting element is preferably - especially permanently - charged against exactly one wall of the recess.
  • the recess, on which the cutting element is arranged, is advantageously located on an outer circumference of the housing and is open in a radially outward-pointing direction.
  • the loading body is in particular a tensioning strip which serves for clamping the cutting element.
  • the suspension element is in particular an expandable suspension element for clamping the cutting element.
  • the guide surface guides the movement of this loading body to clamp the cutting element.
  • two interlocking strips are provided, ie there are for this purpose at least two guide surfaces which extend parallel to the axis of rotation, resulting in a total of a relatively complex structure.
  • the recess is formed by a plurality of walls of the housing and these walls are preferably formed integrally with each other.
  • the recess is designed much simpler than the above cited prior art, since neither complementary strips are provided, nor a two-part or multi-part recess.
  • a pressure piece of a deformable material is arranged between the cutting element and a wall of the recess.
  • This pressure piece is preferably supported against a wall of the recess and serves to load the cutting element and thus to its clamping.
  • this pressure piece is a rubber pressure piece.
  • the pressure piece is arranged in a recess provided in one of the walls.
  • a guide element which can be separated from the housing and which forms the guide surface is arranged in the recess of the housing.
  • fitting plates may be provided in the recess as well as the said guide element, which is replaceable in particular in the event of wear.
  • this guide element or another element in the recess made of an elastomer or a flexible material.
  • this guide member also perceives damping functions for such forces acting in the radial direction of the cutting blade. By this type of damping, the cutting blade can be spared.
  • the suspension element is integrated in one of the walls of the housing.
  • the suspension element is integrated in the loading body itself or in a recess of the loading body.
  • At least one region of the suspension element can be expanded or moved by a gaseous medium.
  • the suspension element can be, for example, an inflatable element or an expandable chamber, which expands when exposed to the gaseous medium, in particular with air.
  • the suspension element can also be a piston which can be moved in a recess in order to load the loading body in this way.
  • the cutting element is supported on at least two mutually non-parallel surfaces relative to the loading body.
  • the cutting element is supported on two mutually perpendicular surfaces relative to the loading body. These two surfaces can form a step on which rests the cutting element.
  • the loading body has a flexible groove in the loading direction, in which the cutting element is arranged. This is clamped or clamped by loading this groove, which may be formed for example by a body of the loading body and a flexible web, the cutting element in the loading body.
  • the suspension element has a flexible membrane.
  • the cutting tool preferably has a feed device in order to supply the suspension element with gas.
  • 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 30 has a plurality of counter cutting bars 28 which are distributed in the circumferential direction of the cutting roller 30.
  • the cutting roller 30 has suction devices to the label on the outer periphery the cutting roller 30 to tighten.
  • the cutting roller 30 rotates in a predetermined direction of rotation about a rotation axis Y, here for example in the counterclockwise direction.
  • the reference numeral 1 refers to a cutting tool according to the invention, which cooperates with the cutting roller 30 for cutting the labels. More specifically, the rotation of the cutting rotor or housing 2 of the cutting tool 1 is synchronized to the rotation of the cutting roller 30 such that the cutting elements 4 meet each other when moving with the counter-cutting bars 28 to cut the labels.
  • the cutting tool 1 has two cutting elements 4 here.
  • the cutting tool 1 is driven by a (not shown) motor, if necessary. With linear motor drive.
  • Fig. 2 shows a representation of a housing or rotor according to the invention 2.
  • the housing 2 is completely assembled, ie the cutting blade 4 and a loading body 12 are already arranged on the housing.
  • the reference numeral 14 refers to a recess of the housing in which the cutting blade 4 and the loading body 12 are arranged.
  • the housing 2 or the rotor is arranged rotatably about a rotation axis X.
  • the loading body 12 is somewhat shorter in the direction of the axis of rotation X than the recess 14 of the housing.
  • limiting pieces or stops are also introduced above and below the loading body 12, whereby they can be screwed into the housing 2 via a threaded bore 18, for example. These limiting pieces (not shown) prevent the loading body 12 from being displaced with respect to the housing in the direction of the axis of rotation X.
  • the cutting element 4 has a projection 4c extending in the direction of the axis of rotation X (and also a corresponding projection at the lower end), so that this cutting element is also held in the radial direction by the two limiting pieces.
  • a projection 22 is also disposed on the loading body 12, which by the (not shown) limiting pieces is held, so that the loading body 12 can not be thrown out of the housing in case of failure of the compressed air supply.
  • Fig. 3 shows a partial view of a cutting tool not according to the invention 1. It can be seen here again the housing 2, which here has three walls 2a, 2b, 2c, which together in Fig. 2 form recess 14 shown. The two side walls 2a and 2c are parallel to each other and the wall 2b is perpendicular to the two walls 2a and 2c.
  • the reference numeral 4 designates the cutting element, which has a cutting edge 6 which projects beyond the housing 2 in a radial direction R.
  • This cutting element 4 is held between a pressure piece 16 and the loading body 12.
  • the loading body is urged in a loading direction P.
  • the reference numeral 20 refers here to a suspension element or clamping element, which in the in Fig. 3 shown embodiment is arranged in a recess 17 of the loading body 12.
  • This suspension element 20 can expand in the loading direction P and press a region of the suspension element 20 against the wall 2a, in order to exert a force on the cutting element 4 in the direction P inversely.
  • this suspension element 20 is permanently under pressure so that permanently the said force is exerted on the cutting element 4.
  • the loading body 12 in the direction of arrow P is at least slightly displaceable relative to the recess 14 and the wall 2b.
  • the loading element 12 is guided along a guide surface F, said guide surface F here by the loading direction P and a direction perpendicular to the plane plane, which in turn parallel to the in Fig. 2 shown rotational axis X is formed.
  • the reference symbol E denotes the plane in which the guide surface F lies.
  • Another guide surface between the loading body 12 and the recess 14 for guiding the loading body in the direction P does not exist, however, as mentioned above, it has been found that such a further guiding surface is not necessary either.
  • stops may be provided on the respective end faces of the housing to prevent the loading body 12 from shifting in the direction of the axis of rotation X relative to the housing 2.
  • the cutting element 4 rests with two side surfaces 4a and 4b on the loading body 12 and is thus arranged in a stage of the loading body 12.
  • the recess is integrally formed, which in turn a simplification of the cutting tool 1 is achieved.
  • Fig. 4 shows a perspective view of a suspension element 20.
  • This suspension element has a circumferential groove 52, which connects a base body 21 of the suspension element with a flexible membrane 54. This groove allows the flexible membrane 54 to move in the direction P upon expansion of the suspension element.
  • suspension elements 20 are arranged one behind the other in the direction of the axis of rotation X.
  • Fig. 5 shows a sectional view of a suspension element 20.
  • the circumferential groove 52 is again shown here.
  • the suspension element has a cavity 57 into which an air-admission body 58 is inserted in a sealing manner. Via a supply line 55, the suspension element 20 air can be supplied and in this way the flexible membrane 54 in Fig. 5 be pushed down.
  • Fig. 6 shows a further schematic representation of a cutting tool according to the invention.
  • a fastening means 27 such as a screw, which serves for fastening a cover 29 on a side wall of the recess 14.
  • This cover 29 prevents the escape of compressed air.
  • Reference numeral 31 refers to an air supply line for supplying compressed air to the suspension element 20. Also in this embodiment is only a guide surface F between the loading body 12 and the recess 14 is present.
  • Fig. 7 shows an enlarged view of the in Fig. 6 shown cutting tool.
  • the suspension element 20 is designed as a piston-like element which is movable within a piston chamber 62. Compressed air is supplied to this piston space 62 via a supply line 63, and in this way a contact surface of this piston can be moved in the direction P and in this way the loading body 12 can be prestressed in order to clamp the cutting element 4. It can be seen that the load body forms two gaps 12a and 12b between itself and the cutting element 4.
  • the loading body 12 may be sprung in the radial direction R by means of a further suspension element, which may be another element which can be expanded with compressed air.
  • This further expandable element could be arranged between the guide element 22 and the wall 2b of the recess 14.
  • the reference numeral 36 denotes a feed line for the continuous air supply of the piston 20. A corresponding feed line could also be provided in the case of a different kind of suspension element.
  • Fig. 8 shows a schematic representation of another embodiment of a cutting tool according to the invention.
  • the loading body 12 is loaded by a movable as Federlement 20 in the direction P piston 20, more precisely a relative to a space 62 movable piston.
  • the reference numeral 61 refers to sealing means for sealing the space 62.
  • Via a supply line 63, as mentioned above, the space 62 can be subjected to continuous pressure.
  • the loading body 12 here has a groove 13 in which the cutting element is arranged. More specifically, when the loading body 12 is loaded in the direction P, a land 12c of the loading body is pressed against a body 12d of the loading body, and thus the cutting element 4 is sandwiched between these two elements. Again, a pressure piece 16 is provided, which is supported against the wall 2a of the recess 14.
  • the said web 12c is here connected via a transverse connection 12e to the main body 12d, whereby a relatively unhindered mobility this web 12c is achieved for pinching.
  • the loading body 12 has only one guide surface for guiding the movement with respect to the recess 14 in the direction P.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Labeling Devices (AREA)
  • Sawing (AREA)
  • Milling Processes (AREA)
  • Knives (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Details Of Cutting Devices (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Claims (8)

  1. Outil de coupe (1), en particulier destiné à la coupe d'étiquettes, avec un boîtier (2) agencé de manière rotative autour d'un axe de rotation (X) et un élément de coupe (4) agencé au niveau de ce boîtier (2), dans lequel cet élément de coupe (4) présente une arête de coupe (6) qui s'étend sensiblement dans un sens parallèle à l'axe de rotation (X), et dans lequel cet élément de coupe (4) est agencé de manière amovible dans un évidement (14) du boîtier (2) formé par plusieurs parois (2a, 2b, 2c) du boîtier (2), avec un corps de sollicitation (12) agencé dans l'évidement (14) qui sollicite l'élément de coupe (4) dans un mode de travail dans un sens de sollicitation (P) pour le maintien de l'élément de coupe au niveau du boîtier, et avec un élément de suspension (20) qui exerce une force sur le corps de sollicitation (12) dans le sens de sollicitation (P) dans le mode de travail de l'outil de coupe et dans lequel un mouvement du corps de sollicitation (12) dans le sens de sollicitation (P) est guidé par une surface de guidage (F) et cette surface de guidage s'étend dans un plan (E), auquel l'axe de rotation (X) est parallèle, et la surface de guidage (F) est la seule surface de guidage (F) s'étendant dans le plan (E) qui guide le mouvement du corps de sollicitation (12) dans le sens de sollicitation (P),
    dans lequel une pièce de pression (16) en un matériau déformable est agencée entre l'élément de coupe (4) et une paroi (2c) de l'évidement (14) et dans lequel est agencé dans l'évidement (14) un élément de guidage (22) séparable du boîtier (2), lequel réalise la surface de guidage (F),
    caractérisé en ce que
    l'élément de suspension (20) est intégré dans une des parois (2a, 2b, 2c) du boîtier.
  2. Outil de coupe selon la revendication 1,
    caractérisé en ce que
    l'évidement (14) est formé par plusieurs parois (2a, 2b, 2c) du boîtier (2) et ces parois (2a, 2b, 2c) sont réalisées d'un seul tenant les unes avec les autres.
  3. Outil de coupe (1) selon la revendication 1,
    caractérisé en ce que
    la pièce de pression (16) est agencée dans un évidement prévu dans une des parois (2a, 2b, 2c).
  4. Outil de coupe (1) selon au moins l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'élément de guidage (22) ou un autre élément agencé dans l'évidement (14) du boîtier (2) est fabriqué en un matériau flexible.
  5. Outil de coupe (1) selon au moins l'une quelconque des revendications précédentes,
    caractérisé en ce qu'
    au moins une zone de l'élément de suspension (20) peut être déplacée par un milieu gazeux.
  6. Outil de coupe (1) selon au moins l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'élément de suspension (20) présente une membrane flexible (54).
  7. Outil de coupe (1) selon au moins l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'outil de coupe (1) présente un dispositif d'amenée afin d'alimenter en gaz l'élément de suspension.
  8. Outil de coupe (1) selon au moins l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'outil de coupe présente dans la direction de l'axe de rotation plusieurs éléments de suspension (20) agencés les uns derrière les autres.
EP10153773.6A 2009-02-20 2010-02-17 Outil de coupe destiné à la coupe d'étiquettes Active EP2221154B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200910009820 DE102009009820A1 (de) 2009-02-20 2009-02-20 Schneidwerkzeug zum Schneiden von Etiketten

Publications (3)

Publication Number Publication Date
EP2221154A2 EP2221154A2 (fr) 2010-08-25
EP2221154A3 EP2221154A3 (fr) 2011-01-05
EP2221154B1 true EP2221154B1 (fr) 2019-09-25

Family

ID=42173674

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10153773.6A Active EP2221154B1 (fr) 2009-02-20 2010-02-17 Outil de coupe destiné à la coupe d'étiquettes

Country Status (5)

Country Link
US (1) US20100212471A1 (fr)
EP (1) EP2221154B1 (fr)
JP (1) JP5543799B2 (fr)
CN (1) CN101811307B (fr)
DE (1) DE102009009820A1 (fr)

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DE102009009820A1 (de) * 2009-02-20 2010-08-26 Krones Ag Schneidwerkzeug zum Schneiden von Etiketten
CN102248543A (zh) * 2011-04-27 2011-11-23 苏州工业园区天势科技有限公司 自动吸附式标签切刀
DE102011076863A1 (de) 2011-06-01 2012-12-06 Krones Aktiengesellschaft Vorrichtung und Verfahren zur Perforation von Folien

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EP2221154A3 (fr) 2011-01-05
DE102009009820A1 (de) 2010-08-26
US20100212471A1 (en) 2010-08-26
EP2221154A2 (fr) 2010-08-25
CN101811307A (zh) 2010-08-25
CN101811307B (zh) 2014-09-17
JP2010208011A (ja) 2010-09-24
JP5543799B2 (ja) 2014-07-09

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