EP2418054B1 - Cut-out blade for longitudinal division of a strip of material passing through a system - Google Patents

Cut-out blade for longitudinal division of a strip of material passing through a system Download PDF

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Publication number
EP2418054B1
EP2418054B1 EP11169496A EP11169496A EP2418054B1 EP 2418054 B1 EP2418054 B1 EP 2418054B1 EP 11169496 A EP11169496 A EP 11169496A EP 11169496 A EP11169496 A EP 11169496A EP 2418054 B1 EP2418054 B1 EP 2418054B1
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EP
European Patent Office
Prior art keywords
blade
cutting
knife
base body
shaft
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
EP11169496A
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German (de)
French (fr)
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EP2418054A1 (en
Inventor
Axel Dipl.-Ing. Barten (Eth)
Fridwald Greiner
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.)
Achenbach Buschhetten GmbH and Co KG
Original Assignee
Achenbach Buschhetten GmbH and Co KG
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Application filed by Achenbach Buschhetten GmbH and Co KG filed Critical Achenbach Buschhetten GmbH and Co KG
Priority to PL11169496T priority Critical patent/PL2418054T3/en
Publication of EP2418054A1 publication Critical patent/EP2418054A1/en
Application granted granted Critical
Publication of EP2418054B1 publication Critical patent/EP2418054B1/en
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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
    • 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
    • B26D7/2635—Means for adjusting the position of the cutting member for circular cutters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/54—Auxiliary folding, cutting, collecting or depositing of sheets or webs
    • B41F13/56—Folding or cutting
    • B41F13/58—Folding or cutting lengthwise
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/0006—Cutting members therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—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
    • B26D1/14—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 circular cutting member, e.g. disc cutter
    • B26D1/24—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 circular cutting member, e.g. disc cutter coacting with another disc cutter
    • B26D1/245—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 circular cutting member, e.g. disc cutter coacting with another disc cutter 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

Definitions

  • the present invention relates to a cutting knife for longitudinal dividing a continuous material web by cutting a dividing strip of defined cutting width of the material web with a knife holder and arranged on a base of the knife holder knife assembly with two coaxial and mutually parallel and spaced in cutting width circular knives, the circular blades of Knife arrangement are spaced apart by a resilient spacer means, and on both sides of the knife assembly is arranged in each case an axial stop means, wherein both stop means are changeable in their axial positioning on the base body of the knife holder.
  • cutting devices For slitting a web of material into strips of material, cutting devices are used which have a top knife bar cooperating with a bottom counter knife bar.
  • the upper cutter bar has a plurality of cutting blades on a top cutter shaft, which each have a knife holder with a knife assembly with two by a spacer device according to the desired Cutting width spaced circle knives have.
  • the counter knife bar has cutting grooves, the groove edges form cutting edges of a lower blade, each cooperating with a cutting edge of the circular blade and also have a the cutting width corresponding distance from each other.
  • the cutting grooves are arranged on a lower blade shaft in a defined number and at defined intervals and with a defined groove width, which are determined by a cutting program.
  • the knife assemblies arranged on a knife holder are also arranged on the upper knife shaft.
  • the positioning of the knife holder or the circular knife must be done so that the circular blades with their cutting edges in the cutting groove of the lower blade shaft and rest with their cutting edges with light pressure against the cutting edges of the counter knife forming cutting groove.
  • the circular blade bearing upper blade shaft is arranged pivotably against the provided with the cutting grooves counter knife shaft in the rule.
  • a cutting knife according to the preamble of claim 1 is known from the document DE-U-29717396 ,
  • the present invention is based on the object, the above-described positioning of the cutting edges of the circular blade against the Cutting edges of the cutting grooves comfortable and easy to perform reproducible.
  • the inventive arrangement of a resilient distancing device between the circular knives of the knife assembly in combination with arranged on both sides of the knife assembly in its axial position relative to the knife holder variable stop means allows both a change in the axial positioning of both circular blades of the knife assembly relative to the main body of the knife holder and a change of Distance of the circular blades of the knife assembly from each other. This makes it possible that, with unchanged or constant positioning of the blade holder on the upper blade shaft, the circular blades of the blade assembly for the duration of pivoting into the cutting groove of the lower blade shaft may have a reduced distance from each other.
  • the distance between the circular knives can be increased again until the cutting edges of the circular blade with the desired or required pressure against the cutting edges of the counter knife shaft issue.
  • To prepare a swinging of the upper cutter shaft relative to the lower blade shaft can be moved in reverse order.
  • the inventive design of the cutting knife thus makes it possible to maintain the position of the knife holder on the upper knife shaft during the positioning of the circular blade relative to the counter knife shaft.
  • no separate tools or tools are necessary for the reduction of the distance of the circular blades from each other during immersion in the cutting groove, since this reduction of the distance by means of axially adjustable relative to the main body of the knife holder stop means is feasible.
  • the same stop means which are used to reduce the distance of the circular blade from each other also for positioning the cutting edges of the circular blade against the cutting edges of the cutting groove.
  • the cutting blade according to the invention By means of the cutting blade according to the invention, therefore, the positioning of the circular blade without the need for additional tools or devices and thus particularly comfortable possible.
  • the position of the circular blade on the body is indirectly defined by the axial stop means and thus exactly as a relative position relative to the unchanged in position on the blade shaft knife holder reproducible.
  • At least one stop device interacts with a spacer device arranged between a circular blade and the stop device, so that a desired distance can be defined by means of the spacer device independently of the embodiment of the stop device.
  • the stop means are designed as a shaft nut, which are each arranged on a threaded collar of the main body of the knife holder, wherein the threaded collars by a mounting collar of the body of the Coaxial arrangement of the knife assembly is used, a particularly accurate positioning of the circular blade relative to the body is possible because a change in position of the circular blade is directly proportional to the product of thread pitch and the number of revolutions of the shaft nut.
  • the main body of the knife holder is designed as a shaft hub and has an attachment collar for attachment of the knife holder on a knife shaft at an axial end, if necessary, a change in the relative position of the knife holder relative to the knife shaft necessary to easily make adjustments to changes in the cutting program to be able to.
  • the base body of the knife holder on a gradually increasing in the axial direction outer diameter, wherein the mounting collar has the maximum diameter and adjoins the threaded collar for receiving the first shaft nut, the mounting collar for receiving the knife assembly and the other threaded collar for receiving the second shaft nut is formed.
  • the reproducibility of the positioning of the circular knives on the base body can be further increased by virtue of the fact that at least one of the spacer devices assigned to the stop devices has a plurality of exchangeable spacer elements, so that spacer devices of different widths can be produced by a variable series arrangement of the spacer elements.
  • the resilient distancing device for spacing the circular blades of the knife assembly is formed as an annular spring element, which is arranged coaxially on the base body, are for the safe installation and fixation of the spring-elastic spacer device no additional components necessary. Rather, the distance device is guided on the body safely between the circular blades.
  • Fig. 1 shows a section of a cutting device 10 with an upper cutter bar 11 and a counter knife bar 12.
  • the upper cutter bar 11 has arranged on a top cutter shaft 13 a plurality of cutting blades 14, of which in the Fig. 1 shown section of the cutting device 10, only a cutting blade 14 is shown.
  • the cutting knife 14 has a knife holder 15 which is arranged on a base body 16 provided with a knife assembly 17.
  • the knife assembly 17 consists in the present case of two circular knives 18, 19, which have a circular ring-shaped cutter disc 20 having a circumferentially formed on the outer edge cutting edge 21, 22nd
  • the counterweight bar 12 has a counter knife shaft 23, which has two cooperating by an intermediate ring 25 knife bushings 26, 27 to form a cooperating with the cutting blade 14 counter blade 24.
  • the blade bushings 26, 27 are provided at their axially opposite ends in each case with a circumferentially formed shoulder 28, 29, a through forming the intermediate ring 25 cutting groove 30 with two formed by the shoulder edges cutting edges 31, 32 form.
  • Fig. 1 has the cutting blade 14, and the circular blades 18, 19 of the knife assembly 17 of the cutting knife 14 a prepared for stationary cutting operation positioning, wherein the cutting edges 21, 22 of the circular blade 18, 19 with slight pressure against the cutting edges 31, 32 of the Lower knife 24 abut.
  • Fig. 2 shows in solid line the cutting edges 21, 22 of the cutting blade 14 in one of the illustration according to Fig. 1 corresponding cutting position. Further shows Fig. 2 dash-dotted line course, the cutting edges 21, 22 in a Einschwenk- or Ausschwenkpositiontechnik in which the cutting edges 21, 22 are moved to reduce the distance from each other.
  • the base body 16 of the knife holder 15 has a stepped structure in the axial direction, wherein at one, in Fig. 2 left axial end of the base body 16 has a mounting collar 33 which with a radially against the Obermeserwelle 13 (FIG. Fig. 1 ) directed fastening screw 34 is provided, which radially fixes the base body 16 of the knife holder 15 in a secured by the axial securing device 35 positioning.
  • a first threaded collar 36 is formed on the base body 16, on which a first shaft nut 37 is arranged.
  • a mounting collar 38 which serves for receiving the knife assembly 17, a spring between the circular knives 18, 19 of the knife assembly 17 resilient, designed here as a so-called wave washer spacer 39 and pressure plates 40 and 44 and spacer elements 41, 42, 43, which are arranged in the case of the present embodiment, the right of the knife assembly 17 and compared to the resilient spacer 39 are rigid and immutable with respect to their distance effect.
  • the axial conclusion Finally forms another threaded collar 45, which serves to receive a further shaft nut 46.
  • the shaft nut 37 is first screwed onto the threaded collar 36. Subsequently, the arrangement of the first pressure plate 40 followed by the assembly of the spring-elastic distance device 39 from each other separated circular blade 18, 19 of the knife assembly 17 on the mounting collar 38. This is followed by the arrangement of the further spacer elements 41 to 43 and the pressure plate 44, so that Finally, the shaft nut 46 can be screwed onto the threaded collar 45.
  • Fig. 2 in the cutting configuration of the cutting blade 14 shown with a solid line, the distance A of the cutting edges 21, 22 of the circular blades 18, 19 corresponding to the cutting width is determined by the axial positioning of the shaft nut 46 on the threaded collar 45.
  • a locking pin 47 is provided which extends axially from a mounting receptacle 48 in the mounting collar 33 Guide holes 49 in the pressure plates 40 and 44 and the spacer elements 41 to 43 and guide holes 50 in the circular blades 18, 19 extends therethrough.

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

Description

Die vorliegende Erfindung betrifft ein Ausschnittmesser zum Längsteilen einer durchlaufenden Materialbahn durch Ausschneiden eines Teilungsstreifens definierter Ausschnittbreite aus der Materialbahn mit einem Messerhalter und einer auf einem Grundkörper des Messerhalters angeordneten Messeranordnung mit zwei koaxial und parallel zueinander angeordneten und in Ausschnittbreite voneinander beabstandeten Kreismessern, wobei die Kreismesser der Messeranordnung durch eine federelastische Distanzeinrichtung voneinander beabstandet sind, und zu beiden Seiten der Messeranordnung jeweils eine axiale Anschlageinrichtung angeordnet ist, wobei beide Anschlageinrichtungen in ihrer axialen Positionierung auf dem Grundkörper des Messerhalters veränderbar sind.The present invention relates to a cutting knife for longitudinal dividing a continuous material web by cutting a dividing strip of defined cutting width of the material web with a knife holder and arranged on a base of the knife holder knife assembly with two coaxial and mutually parallel and spaced in cutting width circular knives, the circular blades of Knife arrangement are spaced apart by a resilient spacer means, and on both sides of the knife assembly is arranged in each case an axial stop means, wherein both stop means are changeable in their axial positioning on the base body of the knife holder.

Zum Längteilen einer Materialbahn in Materialstreifen werden Schneideinrichtungen verwendet, die einen Obermesserbalken aufweisen, der mit einem unteren Gegenmesserbalken zusammenwirkt. Der Obermesserbalken weist auf einer Obermesserwelle eine Mehrzahl von Ausschnittmessern auf, die jeweils auf einem Messerhalter eine Messeranordnung mit zwei durch eine Distanzeinrichtung entsprechend der gewünschten Ausschnittbreite voneinander beabstandeten Kreismessern aufweisen. Der Gegenmesserbalken weist Schneidnuten auf, deren Nutflanken Schneidkanten eines Untermesser ausbilden, jeweils mit einer Schneidkante der Kreismesser zusammenwirken und ebenfalls einen der Ausschnittbreite entsprechenden Abstand voneinander aufweisen. Die Schneidnuten sind auf einer Untermesserwelle in einer definierten Anzahl und in definierten Abständen sowie mit definierter Nutbreite angeordnet, die durch ein Schnittprogramm festgelegt sind. Entsprechend diesem Schnittprogramm sind auch die jeweils auf einem Messerhalter angeordneten Messeranordnungen auf der Obermesserwelle angeordnet. Dabei muss die Positionierung der Messerhalter bzw. der Kreismesser so erfolgen, dass die Kreismesser mit ihren Schneidkanten in die Schneidnut der Untermesserwelle eintauchen und mit ihren Schneidkanten mit leichtem Druck gegen die Schneidkanten der das Gegenmesser bildenden Schneidnut anliegen.For slitting a web of material into strips of material, cutting devices are used which have a top knife bar cooperating with a bottom counter knife bar. The upper cutter bar has a plurality of cutting blades on a top cutter shaft, which each have a knife holder with a knife assembly with two by a spacer device according to the desired Cutting width spaced circle knives have. The counter knife bar has cutting grooves, the groove edges form cutting edges of a lower blade, each cooperating with a cutting edge of the circular blade and also have a the cutting width corresponding distance from each other. The cutting grooves are arranged on a lower blade shaft in a defined number and at defined intervals and with a defined groove width, which are determined by a cutting program. In accordance with this cutting program, the knife assemblies arranged on a knife holder are also arranged on the upper knife shaft. The positioning of the knife holder or the circular knife must be done so that the circular blades with their cutting edges in the cutting groove of the lower blade shaft and rest with their cutting edges with light pressure against the cutting edges of the counter knife forming cutting groove.

Zur Herstellung des gewünschten Eingriffs der Schneidkanten der Kreismesser in die Schneidnuten der Gegenmesserwelle ist in der Regel die die Kreismesser tragende Obermesserwelle gegen die mit den Schneidnuten versehende Gegenmesserwelle verschwenkbar angeordnet. Um zu verhindern, dass bei einem Einschwenken der Obermesserwelle die Schneidkanten der Kreismesser gegen die Oberfläche der Gegenmesserwelle bzw. die Schneidkanten der Gegenmesserwelle anschlagen und beschädigt werden, ist es notwendig, den Abstand der Kreismesser der Messeranordnungen während des Einschwenkens zu verringern, um sicherzustellen, dass die Schneidkanten der Kreismesser mit ausreichendem Abstand vor den Schneidkanten der Untermesserwelle in die Schneidnut einschwenken. Erst nach erfolgtem Einschwenken erfolgt die gewünschte Positionierung der Schneidkanten der Kreismesser gegen die Schneidkanten der Schneidnuten.In order to produce the desired engagement of the cutting edges of the circular blades in the cutting grooves of the counter blade shaft, the circular blade bearing upper blade shaft is arranged pivotably against the provided with the cutting grooves counter knife shaft in the rule. In order to prevent the cutting edges of the circular blade against the surface of the counter blade shaft or the cutting edges of the counter blade shaft are hit and damaged during pivoting of the upper blade shaft, it is necessary to reduce the distance between the circular blade knife assemblies during pivoting, to ensure that Swing the cutting edges of the circular blades into the cutting groove with sufficient clearance in front of the cutting edges of the lower blade shaft. Only after swiveling in the desired positioning of the cutting edges of the circular blade against the cutting edges of the cutting grooves takes place.

Ein Ausschnittmesser gemäß dem Oberbegriff von Anspruch 1 ist bekannt aus der Schrift DE-U-29717396 .A cutting knife according to the preamble of claim 1 is known from the document DE-U-29717396 ,

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, die vorbeschriebene Positionierung der Schneidkanten der Kreismesser gegen die Schneidkanten der Schneidnuten komfortabel und leicht reproduzierbar ausführen zu können.The present invention is based on the object, the above-described positioning of the cutting edges of the circular blade against the Cutting edges of the cutting grooves comfortable and easy to perform reproducible.

Diese Aufgabe wird durch ein Ausschnittmesser gelöst, das die Merkmale des Anspruchs 1 aufweist.This object is achieved by a cutting knife having the features of claim 1.

Die erfindungsgemäße Anordnung einer federelastischen Distanzeinrichtung zwischen den Kreismessern der Messeranordnung in Kombination mit zu beiden Seiten der Messeranordnung angeordneten in ihrer axialen Position gegenüber dem Messerhalter veränderbaren Anschlageinrichtungen ermöglicht sowohl eine Veränderung der axialen Positionierung beider Kreismesser der Messeranordnung gegenüber dem Grundkörper des Messerhalters als auch eine Veränderung des Abstands der Kreismesser der Messeranordnung voneinander. Hierdurch ist es möglich, dass bei unveränderter oder konstanter Positionierung des Messerhalters auf der Obermesserwelle die Kreismesser der Messeranordnung für die Dauer des Einschwenkens in die Schneidnut der Untermesserwelle einen reduzierten Abstand voneinander aufweisen können. Nachdem der eingeschwenkte Zustand erreicht ist, also die Kreismesser mit ihren Schneidkanten in die Schneidnut des Gegenmessers eingetaucht sind, kann der Abstand zwischen den Kreismessern wieder so weit vergrößert werden, bis die Schneidkanten der Kreismesser mit dem gewünschten bzw. erforderlichen Druck gegen die Schneidkanten der Gegenmesserwelle anliegen. Dabei kann insbesondere so vorgegangen werden, dass zunächst die Schneidkante des ersten Kreismessers gegen die zugeordnete erste Schneidkante der Schneidnut positioniert wird und anschließend die Schneidkante des zweiten Kreismessers gegen die zugeordnete zweite Schneidkante der Schneidnut positioniert wird. Zur Vorbereitung eines Ausschwenkens der Obermesserwelle gegenüber der Untermesserwelle kann in umgekehrter Reihenfolge verfahren werden.The inventive arrangement of a resilient distancing device between the circular knives of the knife assembly in combination with arranged on both sides of the knife assembly in its axial position relative to the knife holder variable stop means allows both a change in the axial positioning of both circular blades of the knife assembly relative to the main body of the knife holder and a change of Distance of the circular blades of the knife assembly from each other. This makes it possible that, with unchanged or constant positioning of the blade holder on the upper blade shaft, the circular blades of the blade assembly for the duration of pivoting into the cutting groove of the lower blade shaft may have a reduced distance from each other. After the pivoted state is reached, so the circular blades are immersed with their cutting edges in the cutting groove of the counter knife, the distance between the circular knives can be increased again until the cutting edges of the circular blade with the desired or required pressure against the cutting edges of the counter knife shaft issue. In this case, it is possible in particular to proceed in such a way that first the cutting edge of the first circular blade is positioned against the associated first cutting edge of the cutting groove and then the cutting edge of the second circular blade is positioned against the associated second cutting edge of the cutting groove. To prepare a swinging of the upper cutter shaft relative to the lower blade shaft can be moved in reverse order.

Abweichend von der vorgenannten räumlichen Zuordnung des auf einer Obermesserwelle angeordneten Ausschnittmessers oberhalb des auf einer Gegenmesserwelle oder Untermesserwelle angeordneten Gegenmessers ist es natürlich auch möglich, die das Ausschnittmesser tragende Messerwelle unterhalb der Gegenmesserwelle anzuordnen.Notwithstanding the aforementioned spatial assignment of arranged on a top knife shaft cutting blade above the arranged on a counter blade shaft or lower blade counter blade Of course, it is also possible to arrange the cutter blade carrying the cutting blade below the counter knife shaft.

Die erfindungsgemäße Ausgestaltung des Ausschnittmessers ermöglicht es also, die Position des Messerhalters auf der Obermesserwelle während der Positionierung der Kreismesser gegenüber der Gegenmesserwelle beizubehalten. Darüber hinaus sind für die Reduzierung des Abstands der Kreismesser voneinander während des Eintauchens in die Schneidnut keine separaten Hilfsmittel oder Werkzeuge notwendig, da diese Reduzierung des Abstands vermittels der axial gegenüber dem Grundkörper des Messerhalters veränderbaren Anschlageinrichtungen durchführbar ist. Vorteilhaft dienen dieselben Anschlageinrichtungen, die zur Reduzierung des Abstands der Kreismesser voneinander verwendet werden auch zur Positionierung der Schneidkanten der Kreismesser gegenüber den Schneidkanten der Schneidnut.The inventive design of the cutting knife thus makes it possible to maintain the position of the knife holder on the upper knife shaft during the positioning of the circular blade relative to the counter knife shaft. In addition, no separate tools or tools are necessary for the reduction of the distance of the circular blades from each other during immersion in the cutting groove, since this reduction of the distance by means of axially adjustable relative to the main body of the knife holder stop means is feasible. Advantageously, the same stop means, which are used to reduce the distance of the circular blade from each other also for positioning the cutting edges of the circular blade against the cutting edges of the cutting groove.

Mittels des erfindungsgemäßen Ausschnittmessers ist daher die Positionierung der Kreismesser ohne die Notwendigkeit zusätzlicher Werkzeuge oder Einrichtungen und damit besonders komfortabel möglich. Darüber hinaus ist die Position der Kreismesser auf dem Grundkörper mittelbar durch die axialen Anschlageinrichtungen definiert und somit exakt als Relativposition gegenüber dem in seiner Position auf der Messerwelle unveränderten Messerhalters reproduzierbar.By means of the cutting blade according to the invention, therefore, the positioning of the circular blade without the need for additional tools or devices and thus particularly comfortable possible. In addition, the position of the circular blade on the body is indirectly defined by the axial stop means and thus exactly as a relative position relative to the unchanged in position on the blade shaft knife holder reproducible.

Besonders vorteilhaft ist es, wenn zumindest eine Anschlageinrichtung mit einer zwischen einem Kreismesser und der Anschlageinrichtung angeordneten Distanzeinrichtung zusammenwirkt, so dass vermittels der Distanzeinrichtung unabhängig von der Ausführung der Anschlageinrichtung eine gewünschte Distanz definierbar ist.It is particularly advantageous if at least one stop device interacts with a spacer device arranged between a circular blade and the stop device, so that a desired distance can be defined by means of the spacer device independently of the embodiment of the stop device.

Wenn gemäß einer bevorzugten Ausführungsform die Anschlageinrichtungen als Wellenmutter ausgeführt sind, die jeweils auf einem Gewindebund des Grundkörpers des Messerhalters angeordnet sind, wobei die Gewindebunde durch einen Montagebund des Grundkörpers der zur koaxialen Anordnung der Messeranordnung dient, beabstandet sind, ist eine besonders exakte Positionierung der Kreismesser gegenüber dem Grundkörper möglich, da eine Positionsänderung der Kreismesser direkt proportional dem Produkt aus Gewindesteigung und der Anzahl von Umdrehungen der Wellenmutter ist.If according to a preferred embodiment, the stop means are designed as a shaft nut, which are each arranged on a threaded collar of the main body of the knife holder, wherein the threaded collars by a mounting collar of the body of the Coaxial arrangement of the knife assembly is used, a particularly accurate positioning of the circular blade relative to the body is possible because a change in position of the circular blade is directly proportional to the product of thread pitch and the number of revolutions of the shaft nut.

Wenn darüber hinaus der Grundkörper des Messerhalters als Wellennabe ausgeführt ist und an einem axialen Ende einen Befestigungsbund zur Befestigung des Messerhalters auf einer Messerwelle aufweist, ist bei Bedarf auch eine Änderung der Relativposition des Messerhalters gegenüber der Messerwelle notwendig, um leicht Anpassungen an Änderungen des Schnittprogramms durchführen zu können.In addition, if the main body of the knife holder is designed as a shaft hub and has an attachment collar for attachment of the knife holder on a knife shaft at an axial end, if necessary, a change in the relative position of the knife holder relative to the knife shaft necessary to easily make adjustments to changes in the cutting program to be able to.

Bei einer besonders bevorzugten Ausführungsform weist der Grundkörper des Messerhalters einen in axialer Richtung stufenförmig zunehmenden Außendurchmesser auf, wobei der Befestigungsbund den maximalen Durchmesser aufweist und daran anschließt der Gewindebund zur Aufnahme der ersten Wellenmutter, der Montagebund zur Aufnahme der Messeranordnung und der weitere Gewindebund zur Aufnahme der zweiten Wellenmutter ausgebildet ist. Hierdurch ist eine Montage der Messeranordnung mit sämtlichen zur Positionierung der Kreismesser gegenüber dem Grundkörper notwendigen Bauteilen von einer Montageseite her auf den Grundkörper möglich.In a particularly preferred embodiment, the base body of the knife holder on a gradually increasing in the axial direction outer diameter, wherein the mounting collar has the maximum diameter and adjoins the threaded collar for receiving the first shaft nut, the mounting collar for receiving the knife assembly and the other threaded collar for receiving the second shaft nut is formed. As a result, an assembly of the knife assembly with all necessary for positioning of the circular blade relative to the body components from a mounting side forth on the body is possible.

Die Reproduzierbarkeit der Positionierung der Kreismesser auf dem Grundkörper kann dadurch noch erhöht werden, dass zumindest eine der den Anschlageinrichtungen zugeordnete Distanzeinrichtung eine Mehrzahl von austauschbaren Distanzelementen aufweist, so dass durch eine veränderbare Reihenanordnung der Distanzelemente Distanzeinrichtungen unterschiedlicher Breite herstellbar sind.The reproducibility of the positioning of the circular knives on the base body can be further increased by virtue of the fact that at least one of the spacer devices assigned to the stop devices has a plurality of exchangeable spacer elements, so that spacer devices of different widths can be produced by a variable series arrangement of the spacer elements.

Wenn die federelastische Distanzeinrichtung zur Beabstandung der Kreismesser der Messeranordnung als ringförmiges Federelement ausgebildet ist, dass koaxial auf dem Grundkörper angeordnet ist, sind für die sichere Montage und Fixierung der federelastischen Distanzeinrichtung keine zusätzlichen Bauteile mehr notwendig. Vielmehr wird die Distanzeinrichtung auf dem Grundkörper sicher zwischen den Kreismessern geführt.If the resilient distancing device for spacing the circular blades of the knife assembly is formed as an annular spring element, which is arranged coaxially on the base body, are for the safe installation and fixation of the spring-elastic spacer device no additional components necessary. Rather, the distance device is guided on the body safely between the circular blades.

Nachfolgend wird eine bevorzugte Ausführungsform des Ausschnittmessers anhand der Zeichnung näher erläutert. Es zeigen:

Fig. 1:
eine schematische Ausschnittsdarstellung einer oberhalb einer Gegenmesserwelle angeordneten Messerwelle mit einem darauf angeordneten Ausschnittmesser;
Fig. 2:
das in Fig. 1 dargestellte Ausschnittmesser in einer Einzeldarstellung.
Hereinafter, a preferred embodiment of the cutting blade will be explained with reference to the drawing. Show it:
Fig. 1:
a schematic sectional view of a knife shaft arranged above a counter knife shaft with a cutting knife arranged thereon;
Fig. 2:
this in Fig. 1 illustrated cutting knife in a single representation.

Fig. 1 zeigt einen Ausschnitt einer Schneideinrichtung 10 mit einem Obermesserbalken 11 und einem Gegenmesserbalken 12. Der Obermesserbalken 11 weist auf einer Obermesserwelle 13 angeordnet eine Mehrzahl von Ausschnittmessern 14 auf, von denen in dem in Fig. 1 dargestellten Ausschnitt der Schneideinrichtung 10 lediglich ein Ausschnittmesser 14 dargestellt ist. Das Ausschnittmesser 14 weist einen Messerhalter 15 auf, der auf einem Grundkörper 16 angeordnet mit einer Messeranordnung 17 versehen ist. Die Messeranordnung 17 besteht im vorliegenden Fall aus zwei Kreismessern 18, 19, die eine kreisringförmig ausgebildete Messerscheibe 20 aufweisen mit einer am äußeren Rand umlaufend ausgebildeten Schneidkante 21, 22. Fig. 1 shows a section of a cutting device 10 with an upper cutter bar 11 and a counter knife bar 12. The upper cutter bar 11 has arranged on a top cutter shaft 13 a plurality of cutting blades 14, of which in the Fig. 1 shown section of the cutting device 10, only a cutting blade 14 is shown. The cutting knife 14 has a knife holder 15 which is arranged on a base body 16 provided with a knife assembly 17. The knife assembly 17 consists in the present case of two circular knives 18, 19, which have a circular ring-shaped cutter disc 20 having a circumferentially formed on the outer edge cutting edge 21, 22nd

Der Gegenesserbalken 12 weist eine Gegenmesserwelle 23 auf, die zur Ausbildung eines mit dem Ausschnittmesser 14 zusammenwirkenden Gegenmessers 24 zwei durch einen Zwischenring 25 voneinander beabstandete Messerbuchsen 26, 27 aufweist. Die Messerbuchsen 26, 27 sind an ihren axial einander gegenüberliegenden Enden jeweils mit einem umlaufend ausgebildeten Absatz 28, 29 versehen, die eine durch den Zwischenring 25 aufgeteilte Schneidnut 30 mit zwei jeweils durch die Absatzkanten gebildeten Schneidkanten 31, 32 ausbilden.The counterweight bar 12 has a counter knife shaft 23, which has two cooperating by an intermediate ring 25 knife bushings 26, 27 to form a cooperating with the cutting blade 14 counter blade 24. The blade bushings 26, 27 are provided at their axially opposite ends in each case with a circumferentially formed shoulder 28, 29, a through forming the intermediate ring 25 cutting groove 30 with two formed by the shoulder edges cutting edges 31, 32 form.

In Fig. 1 weist das Ausschnittmesser 14, bzw. weisen die Kreismesser 18, 19 der Messeranordnung 17 des Ausschnittmessers 14 eine für den stationären Schneidbetrieb vorbereitete Positionierung auf, bei der die Schneidkanten 21, 22 der Kreismesser 18, 19 mit leichtem Druck gegen die Schneidkanten 31, 32 des Untermessers 24 anliegen.In Fig. 1 has the cutting blade 14, and the circular blades 18, 19 of the knife assembly 17 of the cutting knife 14 a prepared for stationary cutting operation positioning, wherein the cutting edges 21, 22 of the circular blade 18, 19 with slight pressure against the cutting edges 31, 32 of the Lower knife 24 abut.

Fig. 2 zeigt mit durchgezogenem Linienverlauf die Schneidkanten 21, 22 des Ausschnittmessers 14 in einer der Darstellung gemäß Fig. 1 entsprechenden Schneidstellung. Ferner zeigt Fig. 2 mit strichpunktiertem Linienverlauf die Schneidkanten 21, 22 in einer Einschwenk- bzw. Ausschwenkpositionierung, bei der die Schneidkanten 21, 22 zur Reduzierung des Abstands gegeneinander bewegt sind. Fig. 2 shows in solid line the cutting edges 21, 22 of the cutting blade 14 in one of the illustration according to Fig. 1 corresponding cutting position. Further shows Fig. 2 dash-dotted line course, the cutting edges 21, 22 in a Einschwenk- or Ausschwenkpositionierung in which the cutting edges 21, 22 are moved to reduce the distance from each other.

Wie der Fig. 2 zu entnehmen ist, weist der Grundkörper 16 des Messerhalters 15 einen in axialer Richtung abgestuften Aufbau auf, wobei an einem, in Fig. 2 linken axialen Ende der Grundkörper 16 einen Befestigungsbund 33 aufweist, der mit einer radial gegen die Obermeserwelle 13 ( Fig. 1 ) gerichteten Befestigungsschraube 34 versehen ist, die den Grundkörper 16 des Messerhalters 15 in einer durch die axiale Sicherungseinrichtung 35 gesicherten Positionierung radial fixiert. In axialer Richtung an den Befestigungsbund 33 anschließend ist ein erster Gewindebund 36 am Grundkörper 16 ausgebildet, auf dem eine erste Wellenmutter 37 angeordnet ist. Daran anschließend ist ein Montagebund 38 vorgesehen, der zur Aufnahme der Messeranordnung 17, einer zwischen den Kreismessern 18, 19 der Messeranordnung 17 aufgenommenen federelastischen, hier als sogenannte Wellscheibe ausgebildeten Distanzeinrichtung 39 sowie von Druckscheiben 40 und 44 und Distanzelementen 41, 42, 43 dient, die im Fall des vorliegenden Ausführungsbeispiels rechts der Messeranordnung 17 angeordnet sind und im Vergleich zur federelastischen Distanzeinrichtung 39 hinsichtlich ihrer Distanzwirkung starr und unveränderlich ausgebildeten sind. Den axialen Abschluss bildet schließlich ein weiterer Gewindebund 45, der zur Aufnahme einer weiteren Wellenmutter 46 dient.Again Fig. 2 can be seen, the base body 16 of the knife holder 15 has a stepped structure in the axial direction, wherein at one, in Fig. 2 left axial end of the base body 16 has a mounting collar 33 which with a radially against the Obermeserwelle 13 (FIG. Fig. 1 ) directed fastening screw 34 is provided, which radially fixes the base body 16 of the knife holder 15 in a secured by the axial securing device 35 positioning. In the axial direction of the mounting collar 33 then a first threaded collar 36 is formed on the base body 16, on which a first shaft nut 37 is arranged. Subsequently, a mounting collar 38 is provided, which serves for receiving the knife assembly 17, a spring between the circular knives 18, 19 of the knife assembly 17 resilient, designed here as a so-called wave washer spacer 39 and pressure plates 40 and 44 and spacer elements 41, 42, 43, which are arranged in the case of the present embodiment, the right of the knife assembly 17 and compared to the resilient spacer 39 are rigid and immutable with respect to their distance effect. The axial conclusion Finally forms another threaded collar 45, which serves to receive a further shaft nut 46.

Zur Montage des in Fig. 2 dargestellten Ausschnittmessers 14 wird zunächst die Wellenmutter 37 auf den Gewindebund 36 aufgeschraubt. Anschließend erfolgt die Anordnung der ersten Druckscheibe 40 gefolgt von der Montage der durch die federelastische Distanzeinrichtung 39 voneinander getrennten Kreismesser 18, 19 der Messeranordnung 17 auf dem Montagebund 38. Hieran schließt die Anordnung der weiteren Distanzelemente 41 bis 43 und der Druckscheibe 44 an, so dass abschließend die Wellenmutter 46 auf den Gewindebund 45 aufgeschraubt werden kann.For mounting the in Fig. 2 shown cutting knife 14, the shaft nut 37 is first screwed onto the threaded collar 36. Subsequently, the arrangement of the first pressure plate 40 followed by the assembly of the spring-elastic distance device 39 from each other separated circular blade 18, 19 of the knife assembly 17 on the mounting collar 38. This is followed by the arrangement of the further spacer elements 41 to 43 and the pressure plate 44, so that Finally, the shaft nut 46 can be screwed onto the threaded collar 45.

Wie aus Fig. 2 zu ersehen ist, ist in der mit durchgezogenem Linienverlauf dargestellten Schneidkonfiguration des Ausschnittmesser 14 der der Ausschnittbreite entsprechende Abstand A der Schneidkanten 21, 22 der Kreismesser 18, 19 voneinander durch die axialen Positionierung der Wellenmutter 46 auf den Gewindebund 45 bestimmt.How out Fig. 2 can be seen, in the cutting configuration of the cutting blade 14 shown with a solid line, the distance A of the cutting edges 21, 22 of the circular blades 18, 19 corresponding to the cutting width is determined by the axial positioning of the shaft nut 46 on the threaded collar 45.

Zur Überführung der Schneidkanten 21, 22 der Kreismesser 18, 19 in eine Einschwenk- oder Ausschwenkkonfiguration, in der, wie durch den strichpunktierten Linienverlauf dargestellt, die Schneidkanten 21, 22 einen gegenüber der Ausschnittbreite A reduzierten Einschwenkabstand E aufweisen, erfolgt sowohl eine axiale Zustellung der linken Wellenmutter 37 in Richtung auf die Messeranordnung 17 als auch eine axiale Zustellung der Wellenmutter 46 in Richtung auf die Messeranordnung 17 mit einer der gewünschten axialen Bewegungsstrecke entsprechenden Anzahl von Umdrehungen der Wellenmuttern 37, 46. Eine Rückpositionierung der Schneidkanten 21, 22 nach erfolgten Einschwenken der Schneidkanten 21, 22 in die Schneidnut 30 des Gegenmessers 24 zur Wiederherstellung der Schneidkonfiguration des Ausschnittmessers 14 erfolgt durch eine axiale Rückstellung der in Fig. 2 linken Wellenmutter 37 gegen den Befestigungsbund 34 und eine Rückverstellung der Wellenmutter 46 um die zuvor durchgeführte axiale Verstellung.For the transfer of the cutting edges 21, 22 of the circular blades 18, 19 in a Einschwenk- or Ausschwenkkonfiguration in which, as shown by the dash-dotted line, the cutting edges 21, 22 have a relation to the cutting width A reduced Einschwenkabstand E, both an axial delivery of left shaft nut 37 in the direction of the knife assembly 17 and an axial feed of the shaft nut 46 in the direction of the knife assembly 17 with a desired axial movement distance corresponding number of revolutions of the shaft nuts 37, 46. A repositioning of the cutting edges 21, 22 after pivoting the Cutting edges 21, 22 in the cutting groove 30 of the counter blade 24 to restore the cutting configuration of the cutting blade 14 is effected by an axial return of the in Fig. 2 left shaft nut 37 against the mounting collar 34 and a return adjustment of the shaft nut 46 to the previously performed axial adjustment.

Um bei der vorgenannten axialen Verschiebung der Kreismesser 18, 19 gegenüber dem Grundkörper 16 des Messerhalters 15 die radiale Positionierung der Kreismesser 18, 19 auf den Grundkörper 16 zu sichern, ist ein Sicherungsstift 47 vorgesehen, der sich von einer Befestigungsaufnahme 48 im Befestigungsbund 33 axial durch Führungsbohrungen 49 in den Druckscheiben 40 und 44 sowie den Distanzelementen 41 bis 43 und Führungsbohrungen 50 in den Kreismessern 18, 19 hindurch erstreckt.In order to secure the radial positioning of the circular blades 18, 19 on the base body 16 in the aforementioned axial displacement of the circular blades 18, 19 relative to the base body 16 of the blade holder 15, a locking pin 47 is provided which extends axially from a mounting receptacle 48 in the mounting collar 33 Guide holes 49 in the pressure plates 40 and 44 and the spacer elements 41 to 43 and guide holes 50 in the circular blades 18, 19 extends therethrough.

Claims (7)

  1. A cutting knife (14) for slitting a continuous material web by cutting a strip of a defined width of cut A from the material web, with a blade holder (15) and a blade arrangement (17) arranged on a base body (16) of the blade holder, with two circular blades (18, 19) arranged coaxially and parallel to one another, and spaced apart from one another at the width of cut, characterised in that, the circular blades of the blade arrangement are spaced apart from one another by means of an elastic spacer device (39), and in that, an axial stop device is arranged on either side of the blade arrangement, wherein the axial positions of both stop devices can be altered on the base body of the blade holder.
  2. The cutting knife in accordance with Claim 1,
    characterised in that,
    at least one stop device interacts with a spacer device arranged between a circular blade (18, 19) and the stop device.
  3. The cutting knife in accordance with Claim 1 or 2,
    characterised in that,
    the stop devices are embodied as lock nuts (37, 46), which in each case are arranged on a threaded collar (36, 45) of the base body (16) of the blade holder (15), wherein the threaded collars are spaced apart by means of an assembly collar (38) of the base body, which serves to provide the coaxial arrangement of the blade arrangement (17).
  4. The cutting knife in accordance with one of the preceding claims,
    characterised in that,
    the base body (16) of the blade holder (15) is embodied as a shaft hub, and on one axial end has an attachment collar (33) for purposes of attaching the blade holder to an upper knife shaft (13).
  5. The cutting knife in accordance with Claim 4,
    characterised in that,
    the base body (16) has an outer diameter increasing in a stepped manner in the axial direction, wherein the attachment collar (33) has the maximum diameter, and subsequently the threaded collar (36) is designed to accommodate the first shaft nut (37), the assembly collar (38) is designed to accommodate the blade arrangement (17), and the further threaded collar (45) is designed to accommodate the second shaft nut (46).
  6. The cutting knife in accordance with one of the preceding claims,
    characterised in that,
    at least one of the spacer devices assigned to the stop device has a multiplicity of interchangeable spacer elements (41, 42, 43).
  7. The cutting knife in accordance with one of the preceding claims,
    characterised in that,
    the elastic spacer device (39) for purposes of spacing apart the circular blades (18, 19) of the blade arrangement (17) is designed as a ring-shaped spring element, which is arranged coaxially on the base body (16).
EP11169496A 2010-08-10 2011-06-10 Cut-out blade for longitudinal division of a strip of material passing through a system Active EP2418054B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL11169496T PL2418054T3 (en) 2010-08-10 2011-06-10 Cut-out blade for longitudinal division of a strip of material passing through a system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202010011038U DE202010011038U1 (en) 2010-08-10 2010-08-10 Cutting knife for slitting a continuous material web

Publications (2)

Publication Number Publication Date
EP2418054A1 EP2418054A1 (en) 2012-02-15
EP2418054B1 true EP2418054B1 (en) 2012-09-19

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ID=43299486

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EP (1) EP2418054B1 (en)
DE (1) DE202010011038U1 (en)
PL (1) PL2418054T3 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6207380B2 (en) * 2013-12-20 2017-10-04 デュプロ精工株式会社 Paper slitter, paper processing apparatus provided with the same, and control method therefor
CN104492569B (en) * 2014-12-22 2017-09-29 奥美森智能装备股份有限公司 A kind of disintegrating machine movable cutter set of thickness automatic adjusument
CN109455560B (en) * 2018-12-21 2024-03-15 宁波经纬数控股份有限公司 Machine head of image-text paper feeding cutting machine

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2662981B2 (en) * 1988-06-06 1997-10-15 リンテック株式会社 Slitter device
DE29717396U1 (en) * 1997-09-30 1999-01-28 Wilhelm Bilstein KG Spezialfabrik für Rundmesser und Plattenventile, 51491 Overath Knife holder with adjustable circular knife
DE19959351A1 (en) * 1999-12-09 2001-06-13 Bilstein Spezialfab Wilhelm Self-propelled cutting device for a device for longitudinally dividing continuous material webs

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Publication number Publication date
DE202010011038U1 (en) 2010-12-02
EP2418054A1 (en) 2012-02-15
PL2418054T3 (en) 2013-02-28

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