EP0937552B1 - Cutting cylinder for web cross-cutting machines - Google Patents

Cutting cylinder for web cross-cutting machines Download PDF

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Publication number
EP0937552B1
EP0937552B1 EP99102362A EP99102362A EP0937552B1 EP 0937552 B1 EP0937552 B1 EP 0937552B1 EP 99102362 A EP99102362 A EP 99102362A EP 99102362 A EP99102362 A EP 99102362A EP 0937552 B1 EP0937552 B1 EP 0937552B1
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EP
European Patent Office
Prior art keywords
knife
clamping
knife drum
bearing surface
cutting
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.)
Expired - Lifetime
Application number
EP99102362A
Other languages
German (de)
French (fr)
Other versions
EP0937552A3 (en
EP0937552A2 (en
Inventor
Dirk Vössing
Wolfram Szczepaniak
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.)
ECH Will GmbH and Co
Original Assignee
ECH Will GmbH and Co
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 ECH Will GmbH and Co filed Critical ECH Will GmbH and Co
Publication of EP0937552A2 publication Critical patent/EP0937552A2/en
Publication of EP0937552A3 publication Critical patent/EP0937552A3/en
Application granted granted Critical
Publication of EP0937552B1 publication Critical patent/EP0937552B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B26D7/2614—Means for mounting the cutting member
    • 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
    • Y10T83/483—With cooperating rotary cutter or backup
    • Y10T83/4836—With radial overlap of the cutting members
    • 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
    • Y10T83/9372—Rotatable type
    • Y10T83/9396—Shear type
    • Y10T83/9399—Cutting edge wholly parallel to axis of rotation
    • 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
    • Y10T83/9469—Adjustable

Definitions

  • the invention relates to a cutterhead for machines for cross-cutting of Material webs, in particular paper or board webs, with in circumferential recesses arranged the knife drum lying against a contact surface the circumferential recesses clamped and along the contact surface adjustable knives.
  • Such a knife drum is in German Utility Model 295 12 032 disclosed.
  • Machines of the type mentioned have two knife drums whose helically arranged knives in circulation in pairs in cutting engagement to cut the web with a paper cut. To be integrity the knives must slide past each other without play, which is achieved by at least one of two cooperating Knives is arranged adjustable relative to the counter knife.
  • the invention is based on the object, the clamping and adjusting so improve that economical operation by a mass-reduced knife is possible.
  • a knife trommel with the features of claim 1.
  • An optimal clamping of the blade can be achieved according to a preferred embodiment in that the terminal block contacted with its wedge surface opposite end in the peripheral recess on a substantially tangentenparallelen clamping and sliding surface with the cutterhead and aligned by substantially radially to the cutterhead aligned clamping bolt and transversely aligned pressure pin can be acted upon. In this way, there is a relatively long projecting end of the terminal block, which acts under the action of the clamping and actuating forces of clamping bolts and pressure pin on the wedge surface on the knife pushing and clamping.
  • a positive connection which is formed by an engaging in a groove of the knife, projecting from the wedge surface of the terminal block nose.
  • the positive connection can also be formed by a stop step of the terminal strip which acts on the knife rear side.
  • the knife can preferably also be designed as a disposable blade having a relatively thin wall thickness.
  • material and weight savings according to a further proposal characterized in that in conjunction with a plastic shaft (CFK shaft) formed cutter drum relevant for the knife holder and - adjustment clamping and guiding surfaces are provided in embedded in the cutterhead metal strips.
  • the advantage achieved by the invention is that through the stable, large-scale blade support and the indirect attack of the adjusting a extremely low-mass, relatively thin and thus also parallel to the support plane deformable, economical knife can be realized.
  • the cross-cutting device 1 shown in Figure 1 is not part of a further shown cutting machine for cutting sheets of paper, Cardboard or the like.
  • the device designed as a synchronous cross cutter has as knife carrier a lower cutterhead 2 and an upper cutterhead 3, each occupied by several relatively thin blades 4 and 6 respectively are, of which only one is shown on each cutterhead.
  • a moving in the conveying direction 7 paper web 8 advised during circulation the two knife drums 2 and 3 in the direction of arrow 9 and 11 respectively two knives 4 and 6 in cutting engagement.
  • the knives 4 and 6 extend perpendicular to the plane of the drawing or in the longitudinal direction the knife drums 2 and 3 slightly helical, the knife 4 lying in a circumferential recess or pocket 12 of the cutterhead 2 by means of a or more juxtaposed terminal strips 13 and clamping bolt 14 attached is.
  • the upper knife 6 is in a peripheral recess or pocket 16 of the cutterhead 3 also lying by means of one or more strung together Clamping strips 17 and clamping bolts 18 attached, with the knife 6 with his a broad side on a contact surface 19 of the cutterhead 3 is supported and with this forms a Gleit lake Unit. With its opposite side is the knife 6 in accordance with Figure 3 positive fit with the terminal block 17 via a into a groove 21 of the Knife engaging, projecting nose 22 on a parallel to the contact surface 19th extending wedge surface 23 in operative connection.
  • the clamping bolt 18 penetrate the terminal block 17 at the rear end in a relative to the bolt diameter enlarged opening 24, wherein the clamping bar 17 within the range of motion of the bolt bump 24 by engaging at its rear end pressure pin 26 along a substantially tangentenparallelen clamping and sliding surface 27 of the cutterhead. 3 can be adjusted with its inclined wedge surface 23 entraining the knife 6, which is advanced along its sliding guide on the contact surface 19 against the lower blade 4 and set helically over the length of its backlash. Trained as a relatively thin disposable knife diameter 6 is advanced by the rear pressurization of the terminal block 17 by overcoming the rear clamping force of the clamping bolt 18 caused elastic transverse deformation of the relatively long front end of the terminal block 17 along the contact surface 19 to the outside.
  • the cutterhead 203 formed as a plastic shaft (CFRP shaft). Only the at the Knife clamping and knife displacement heavily stressed elements, such as the Bearing surface 219 of the blade 206 and the sliding surface 227 for the rear end the terminal block 217 are as a separate, the pressure pin 226 receiving Metal parts inserted into the plastic shaft 203.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nonmetal Cutting Devices (AREA)
  • Making Paper Articles (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Details Of Cutting Devices (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

The cutter blades (6) rest against peripheral cavities (16) in the drum(3) and are clamping against a support surface. The one broad side of the blade forms a slip-in guide with the support surface (19). The contrary broad side of the blade is positively and frictionally connected to a wedge surface (23) parallel with the support surface. The wedge surface belongs to a connecting strip (17) locked by tensioning bolts (18) and movable by pressure bolts (26).

Description

Die Erfindung betrifft eine Messertrommel für Maschinen zum Querschneiden von Materialbahnen, insbesondere Papier- oder Kartonbahnen, mit in Umfangsausnehmungen der Messertrommel liegend angeordneten, gegen eine Anlagefläche der Umfangsausnehmungen festklemmbaren sowie entlang der Anlagefläche einstellbaren Messern.The invention relates to a cutterhead for machines for cross-cutting of Material webs, in particular paper or board webs, with in circumferential recesses arranged the knife drum lying against a contact surface the circumferential recesses clamped and along the contact surface adjustable knives.

Eine derartige Messertrommel ist im deutschen Gebrauchsmuster 295 12 032 offenbart.Such a knife drum is in German Utility Model 295 12 032 disclosed.

Maschinen der eingangs genannten Art weisen zwei Messertrommeln auf, deren wendelförmig angeordnete Messer beim Umlauf paarweise in Schnitteingriff gelangen, um die Bahn mit einem Scherenschnitt zu durchschneiden. Um einwandfrei schneiden zu können, müssen die Messer spielfrei aneinander vorbeigleiten, was dadurch erreicht wird, das wenigstens eins von zwei zusammenwirkenden Messern relativ zum Gegenmesser einstellbar angeordnet ist.Machines of the type mentioned have two knife drums whose helically arranged knives in circulation in pairs in cutting engagement to cut the web with a paper cut. To be impeccable the knives must slide past each other without play, which is achieved by at least one of two cooperating Knives is arranged adjustable relative to the counter knife.

Der Erfindung liegt die Aufgabe zugrunde, die Klemm- und Einstellmittel so zu verbessern, daß ein wirtschaftlicher Betrieb durch ein massereduziertes Messer möglich ist.The invention is based on the object, the clamping and adjusting so improve that economical operation by a mass-reduced knife is possible.

Diese Aufgabe wird erfindungsgemäß durch eine Messertromel mit den Merkmalen des Anspruchs 1 gelöst.
Eine optimale Klemmung des Messers läßt sich gemäß einer bevorzugten Ausführungsform dadurch erreichen, daß die Klemmleiste mit ihrem der Keilfläche gegenüberliegenden Ende in der Umfangsausnehmung an einer im wesentlichen tangentenparallelen Klemm- und Schiebefläche mit der Messertrommel kontaktiert und durch im wesentlichen radial zur Messertrommel ausgerichtete Spannbolzen sowie quer dazu ausgerichtete Druckbolzen beaufschlagbar ist. Auf diese Weise ergibt sich ein relativ langes auskragendes Ende der Klemmleiste, welches unter Einwirkung der Klemm- und Stellkräfte von Spannbolzen und Druckbolzen über die Keilfläche auf das Messer schiebend und klemmend einwirkt.This object is achieved by a knife trommel with the features of claim 1.
An optimal clamping of the blade can be achieved according to a preferred embodiment in that the terminal block contacted with its wedge surface opposite end in the peripheral recess on a substantially tangentenparallelen clamping and sliding surface with the cutterhead and aligned by substantially radially to the cutterhead aligned clamping bolt and transversely aligned pressure pin can be acted upon. In this way, there is a relatively long projecting end of the terminal block, which acts under the action of the clamping and actuating forces of clamping bolts and pressure pin on the wedge surface on the knife pushing and clamping.

Im Sinne der Erfindung wäre es denkbar, bei der Verstellung die Mitnahme des Messers durch entsprechende reibschlüssige Gestaltung der angrenzenden Oberflächen von Messer- und Kleilfläche zu realisieren. Bevorzugt wird hingegen gemäß einer zweckmäßigen Ausgestaltung eine formschlüssige Verbindung, welche durch eine in eine Nut des Messer eingreifende, aus der Keilfläche der Klemmleiste vorspringende Nase gebildet wird.
Alternativ kann die formschlüssige Verbindung auch durch eine die Messerrückseite beaufschlagende Anschlagstufe der Klemmleiste gebildet werden.
In konsequenter Weiterbildung der neuartigen Klemm- und Stellmittel kann das Messer bevorzugt auch als eine relativ dünne Wandstärke aufweisendes Einwegmesser ausgebildet sein.
Darüber hinaus sind Material- und Gewichtseinsparungen nach einem weiteren Vorschlag dadurch möglich, daß in Verbindung mit einer als Kunststoffwelle (CFK-Welle) ausgebildeten Messertrommel die für die Messerhalterung und - verstellung relevanten Spann- und Führungsflächen an in die Messertrommel eingelassenen Metalleisten vorgesehen sind. In the context of the invention, it would be conceivable to realize in the adjustment the entrainment of the knife by appropriate frictional engagement of the adjacent surfaces of knife and Kleilfläche. Preferably, however, according to an advantageous embodiment, a positive connection, which is formed by an engaging in a groove of the knife, projecting from the wedge surface of the terminal block nose.
Alternatively, the positive connection can also be formed by a stop step of the terminal strip which acts on the knife rear side.
In a consistent development of the novel clamping and adjusting means, the knife can preferably also be designed as a disposable blade having a relatively thin wall thickness.
In addition, material and weight savings according to a further proposal, characterized in that in conjunction with a plastic shaft (CFK shaft) formed cutter drum relevant for the knife holder and - adjustment clamping and guiding surfaces are provided in embedded in the cutterhead metal strips.

Der mit der Erfindung erzielte Vorteil besteht darin, daß durch die stabile, großflächige Messerabstützung und den indirekten Angriff der Einstellmittel ein äußerst massearmes, relativ dünnes und dadurch auch parallel zur Stützebene verformbares, wirtschaftlich einsetzbares Messer realisierbar ist. The advantage achieved by the invention is that through the stable, large-scale blade support and the indirect attack of the adjusting a extremely low-mass, relatively thin and thus also parallel to the support plane deformable, economical knife can be realized.

Die Erfindung wird nachfolgend anhand von in der Zeichnung dargestellten Ausführungsbeispielen näher erläutert.The invention will be described below with reference to the drawing Embodiments explained in more detail.

Hierbei zeigen:

Figur 1
einen Teilquerschnitt durch zwei Messertrommeln eines Rotationsquerschneiders im Schneidbereich,
Figur 2
eine abgewandelte Ausführungsform der Messertrommeln,
Figur 3
eine vergrößert dargestellte Einzelheit einer verstellbaren Messerhalterung gemäß Ausschnitt X nach Figur 1 und
Figur 4
eine alternative Ausführungsform der verstellbaren Messerhalterung.
Hereby show:
FIG. 1
a partial cross section through two blade drums of a rotary cross cutter in the cutting area,
FIG. 2
a modified embodiment of the knife drums,
FIG. 3
an enlarged detail shown an adjustable knife holder according to section X of Figure 1 and
FIG. 4
an alternative embodiment of the adjustable knife holder.

Die in Figur 1 dargestellte Querschneideeinrichtung 1 ist Bestandteil eines nicht weiter dargestellten Formatschneiders zum Schneiden von Bogen aus Papier, Karton oder dergleichen. Die als Gleichlauf-Querschneider ausgebildete Einrichtung weist als Messerträger eine untere Messertrommel 2 und eine obere Messertrommel 3 auf, die jeweils mit mehreren relativ dünnen Messern 4 bzw. 6 besetzt sind, von denen jeweils nur eins an jeder Messertrommel dargestellt ist. Zum Schneiden einer in Förderrichtung 7 bewegten Papierbahn 8 geraten beim Umlauf der beiden Messertrommeln 2 und 3 in Pfeilrichtung 9 bzw. 11 jeweils zwei Messer 4 und 6 in Schnitteingriff.The cross-cutting device 1 shown in Figure 1 is not part of a further shown cutting machine for cutting sheets of paper, Cardboard or the like. The device designed as a synchronous cross cutter has as knife carrier a lower cutterhead 2 and an upper cutterhead 3, each occupied by several relatively thin blades 4 and 6 respectively are, of which only one is shown on each cutterhead. To the Cutting a moving in the conveying direction 7 paper web 8 advised during circulation the two knife drums 2 and 3 in the direction of arrow 9 and 11 respectively two knives 4 and 6 in cutting engagement.

Die Messer 4 und 6 erstrecken sich senkrecht zur Zeichenebene bzw. in Längsrichtung der Messertrommeln 2 bzw. 3 leicht wendelförmig, wobei das Messer 4 liegend in einer Umfangsausnehmung bzw. Tasche 12 der Messertrommel 2 mittels einer oder mehrerer aneinandergereihter Klemmleisten 13 und Spannbolzen 14 befestigt ist.The knives 4 and 6 extend perpendicular to the plane of the drawing or in the longitudinal direction the knife drums 2 and 3 slightly helical, the knife 4 lying in a circumferential recess or pocket 12 of the cutterhead 2 by means of a or more juxtaposed terminal strips 13 and clamping bolt 14 attached is.

Das obere Messer 6 ist in einer Umfangsausnehmung bzw. Tasche 16 der Messertrommel 3 ebenfalls liegend mittels einer oder mehrerer aneinandergereihter Klemmleisten 17 und Spannbolzen 18 befestigt, wobei sich das Messer 6 mit seiner einen Breitseite an einer Anlagefläche 19 der Messertrommel 3 abstützt und mit dieser eine Gleitflächenführung bildet. Mit seiner Gegenbreitseite steht das Messer 6 gemäß Figur 3 formschlüssig mit der Klemmleiste 17 über eine in eine Nut 21 des Messers eingreifende, vorspringende Nase 22 an einer parallel zur Anlagefläche 19 verlaufenden Keilfläche 23 in Wirkverbindung.The upper knife 6 is in a peripheral recess or pocket 16 of the cutterhead 3 also lying by means of one or more strung together Clamping strips 17 and clamping bolts 18 attached, with the knife 6 with his a broad side on a contact surface 19 of the cutterhead 3 is supported and with this forms a Gleitflächenführung. With its opposite side is the knife 6 in accordance with Figure 3 positive fit with the terminal block 17 via a into a groove 21 of the Knife engaging, projecting nose 22 on a parallel to the contact surface 19th extending wedge surface 23 in operative connection.

Die Spannbolzen 18 durchdringen die Klemmleiste 17 am hinteren Ende in einer relativ zum Bolzendurchmesser erweiterten Durchbrechung 24, wobei die Klemmleiste 17 innerhalb des Bewegungsspielraums der Bolzendurchbrechnung 24 mittels an ihrem hinteren Ende angreifenden Druckbolzen 26 entlang einer im wesentlichen tangentenparallelen Klemm- und Schiebefläche 27 der Messertrommel 3 mit ihrer dazu geneigt verlaufenden Keilfläche 23 unter Mitnahme des Messers 6 verstellbar ist, welches entlang seiner Gleitführung an der Anlagefläche 19 gegen das untere Messer 4 vorgeschoben und über dessen Länge wendelförmig spielfrei eingestellt wird.
Das als relativ dünnes Einwegmesser ausgebildete Messer 6 wird durch die durch die hintere Druckbeaufschlagung der Klemmleiste 17 unter Überwindung der hinteren Spannkraft der Spannbolzen 18 bewirkte elastische Querverformung des relativ langen vorderen Endes der Klemmleiste 17 entlang der Anlagefläche 19 nach außen vorgeschoben.The clamping bolt 18 penetrate the terminal block 17 at the rear end in a relative to the bolt diameter enlarged opening 24, wherein the clamping bar 17 within the range of motion of the bolt bump 24 by engaging at its rear end pressure pin 26 along a substantially tangentenparallelen clamping and sliding surface 27 of the cutterhead. 3 can be adjusted with its inclined wedge surface 23 entraining the knife 6, which is advanced along its sliding guide on the contact surface 19 against the lower blade 4 and set helically over the length of its backlash.
Trained as a relatively thin disposable knife diameter 6 is advanced by the rear pressurization of the terminal block 17 by overcoming the rear clamping force of the clamping bolt 18 caused elastic transverse deformation of the relatively long front end of the terminal block 17 along the contact surface 19 to the outside.

Bei der in Figur 4 dargestellten abgewandelten Messerhalterung, bei der identische Elemente mit um hundert erhöhten Bezugszahlen versehen und nicht noch einmal besonders erläutert sind, ist ledigleich anstelle der Nase 22 gemäß Figur 3 als formschlüssig angreifendes Vorschubelement eine auf das hintere Ende des Messers 104 einwirkende Anschlagstufe 128 der Klemmleiste 117 vorgesehen.In the modified blade holder shown in Figure 4, in the identical Elements with a hundred increased reference numbers and not once again are particularly explained, is single instead of the nose 22 of Figure 3 as a form-fitting attacking feed element on the rear end of the Knife 104 acting stop step 128 of the terminal block 117 is provided.

Bei der in Figur 2 dargestellten abgewandelten Ausführungsform der Messertrommeln, bei der identische Elemente mit um zweihundert erhöhten Bezugszahlen versehen und nicht noch einmal besonders erläutert sind, ist die Messertrommel 203 als Kunststoffwelle (CFK-Welle) ausgebildet. Lediglich die bei der Messerklemmung und Messerverschiebung stark beanspruchten Elemente, wie die Anlagefläche 219 des Messers 206 und die Schiebefläche 227 für das hintere Ende der Klemmleiste 217 sind als separate, auch die Druckbolzen 226 aufnehmende Metallteile in die Kunststoffwelle 203 eingesetzt.In the modified embodiment of the knife drums shown in FIG. 2, in the case of identical elements with reference numerals increased by two hundred provided and are not particularly explained again, is the cutterhead 203 formed as a plastic shaft (CFRP shaft). Only the at the Knife clamping and knife displacement heavily stressed elements, such as the Bearing surface 219 of the blade 206 and the sliding surface 227 for the rear end the terminal block 217 are as a separate, the pressure pin 226 receiving Metal parts inserted into the plastic shaft 203.

Claims (6)

  1. Knife drum for machines for cutting across lengths of material, particularly lengths of paper or cardboard, with knives which are arranged lying in recesses in the circumference of the knife drum and can be clamped against a bearing surface of the recesses in the circumference and adjusted along the bearing surface, characterized in that an essentially tangentially parallel clamping and pushing surface (27), to which the bearing surface (19) runs at an incline, is provided, and the knife (6), which with its broad side forms a sliding face guide with the bearing surface (19), is effectively joined, positively locking or frictionally engaged on the opposite broad side, to a wedge surface (23), which runs parallel to the bearing surface, of a clamping strip (17) which can be locked by tension bolts (18) and displaced by setbolts (26).
  2. Knife drum according to Claim 1, characterized in that the clamping strip (17), with its end opposite the wedge surface (23), contacts the knife drum (3) in the circumferential recess (16) on the clamping and pushing surface (27), and can be affected by tension bolts (18) which are aligned essentially radially to the knife drum, and setbolts (26) which are aligned transversely to them.
  3. Knife drum according to Claim 1 or 2, characterized in that the positive locking join is formed by a lug (22) which engages with a groove (21) of the knife (6) and projects from the wedge surface (23) of the clamping strip (17).
  4. Knife drum according to Claim 1 or 2, characterized in that the positive locking join is formed by a limit stop stage (128), which affects the back of the knife, of the clamping strip (117).
  5. Knife drum according to one of Claims 1 to 4, characterized in that the knife (6) is in the form of a disposable knife.
  6. Knife drum according to one of Claims 1 to 5, characterized in that in association with a knife drum (203) in the form of a (carbon-fibre-reinforced) plastic shaft, the clamping and guiding surfaces (219, 227) which are relevant to fixing and adjusting the knife are provided on metal strips which are embedded in the knife drum.
EP99102362A 1998-02-20 1999-02-06 Cutting cylinder for web cross-cutting machines Expired - Lifetime EP0937552B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19807111A DE19807111A1 (en) 1998-02-20 1998-02-20 Knife drum for machines for cross cutting material webs
DE19807111 1998-02-20

Publications (3)

Publication Number Publication Date
EP0937552A2 EP0937552A2 (en) 1999-08-25
EP0937552A3 EP0937552A3 (en) 2002-02-06
EP0937552B1 true EP0937552B1 (en) 2004-05-12

Family

ID=7858373

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EP99102362A Expired - Lifetime EP0937552B1 (en) 1998-02-20 1999-02-06 Cutting cylinder for web cross-cutting machines

Country Status (7)

Country Link
US (1) US6263775B1 (en)
EP (1) EP0937552B1 (en)
AT (1) ATE266507T1 (en)
AU (1) AU743328B2 (en)
CA (1) CA2262339C (en)
DE (2) DE19807111A1 (en)
ES (1) ES2218886T3 (en)

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US5439039A (en) * 1994-08-30 1995-08-08 Pacific Saw And Knife Company Slabber with fixed counterknife and adjustable knife and clamp
JP3132742B2 (en) * 1994-10-04 2001-02-05 株式会社小林製作所 Cutting equipment
JPH0899292A (en) * 1994-10-04 1996-04-16 Kobayashi Seisakusho:Kk Cutting device
US5505239A (en) * 1995-03-14 1996-04-09 U.S. Natural Resources Blade arrangement and blade holder for chipper
DE29512032U1 (en) * 1995-07-26 1995-09-28 E.C.H. Will Gmbh, 22529 Hamburg Cross cutting device for web material made of paper or the like.

Also Published As

Publication number Publication date
EP0937552A3 (en) 2002-02-06
DE59909434D1 (en) 2004-06-17
EP0937552A2 (en) 1999-08-25
CA2262339A1 (en) 1999-08-20
US6263775B1 (en) 2001-07-24
DE19807111A1 (en) 1999-08-26
ES2218886T3 (en) 2004-11-16
CA2262339C (en) 2007-04-24
AU743328B2 (en) 2002-01-24
ATE266507T1 (en) 2004-05-15
AU1736199A (en) 1999-09-02

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