EP1594663B1 - Longitudinal cutting device for cutting out strips in a moving web of material - Google Patents

Longitudinal cutting device for cutting out strips in a moving web of material Download PDF

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Publication number
EP1594663B1
EP1594663B1 EP04703092A EP04703092A EP1594663B1 EP 1594663 B1 EP1594663 B1 EP 1594663B1 EP 04703092 A EP04703092 A EP 04703092A EP 04703092 A EP04703092 A EP 04703092A EP 1594663 B1 EP1594663 B1 EP 1594663B1
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EP
European Patent Office
Prior art keywords
circular
gear wheel
knife
blade
drive 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.)
Expired - Lifetime
Application number
EP04703092A
Other languages
German (de)
French (fr)
Other versions
EP1594663A1 (en
Inventor
Ralf Dedeken
Armin Hutzenlaub
Dietmar Kunkel
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.)
Kampf GmbH and Co Maschinenfabrik
Original Assignee
Kampf GmbH and Co Maschinenfabrik
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Filing date
Publication date
Priority claimed from DE2003106858 external-priority patent/DE10306858A1/en
Application filed by Kampf GmbH and Co Maschinenfabrik filed Critical Kampf GmbH and Co Maschinenfabrik
Publication of EP1594663A1 publication Critical patent/EP1594663A1/en
Application granted granted Critical
Publication of EP1594663B1 publication Critical patent/EP1594663B1/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
    • 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
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/08—Means for actuating the cutting member to effect the cut
    • 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
    • Y10T83/647—With means to convey work relative to tool station
    • Y10T83/6584—Cut made parallel to direction of and during work movement
    • Y10T83/6587—Including plural, laterally spaced tools
    • Y10T83/6588—Tools mounted on common tool support
    • Y10T83/659—Tools axially shiftable on support
    • 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
    • Y10T83/647—With means to convey work relative to tool station
    • Y10T83/6584—Cut made parallel to direction of and during work movement
    • Y10T83/6603—Tool shiftable relative to work-conveying 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
    • Y10T83/768—Rotatable disc tool pair or tool and carrier
    • 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
    • Y10T83/768—Rotatable disc tool pair or tool and carrier
    • Y10T83/7751—Means to separate elements of tool pair
    • 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
    • Y10T83/768—Rotatable disc tool pair or tool and carrier
    • Y10T83/7809—Tool pair comprises rotatable tools
    • Y10T83/7822—Tool pair axially shiftable
    • 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
    • Y10T83/768—Rotatable disc tool pair or tool and carrier
    • Y10T83/7809—Tool pair comprises rotatable tools
    • Y10T83/7847—Tool element axially shiftable
    • 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
    • Y10T83/768—Rotatable disc tool pair or tool and carrier
    • Y10T83/7868—Tool element selectively operative

Definitions

  • the invention relates to a longitudinal cutting device for cutting current material webs, with at least one carriage which is adjustably mounted on a transversely extending to the web running direction guide and which has a holder for a freely rotatably mounted upper blade, which is deliverable in the direction of the lower blade and a drive shaft which extends over the entire width of the machine and over which the upper blade, in particular a circular blade, can be driven by means of a gear.
  • Slitting devices for paper, plastic foil and aluminum foil webs usually contain a plurality of circular knives arranged in pairs, with one pair of circular knives each severing the web for division into individual webs in the longitudinal direction.
  • Such longitudinal cutting devices are components of winding machines that produce individual narrower winding rolls from a wide material web.
  • the pairs of circular knives can be positioned transversely to the direction of web travel.
  • a generic longitudinal cutting device is known from WO 99/47317.
  • the longitudinal cutting device described herein consists of a driven upper blade and a freely rotatably mounted lower blade.
  • circular knives are used as upper knives and, in particular, pot knives are used as lower knives.
  • Each pair of knives can be positioned transversely to the running direction of the web to be divided in order to set the required format width.
  • each upper blade is adjustable in the direction of its axis of rotation against the associated lower blade, so that the two cutting edges can be aligned exactly relative to each other.
  • each upper blade can be raised to an inactive position if it is not needed for slitting.
  • a rotary drive for the upper blade is an electric motor, in particular brushless DC motors are used in a very compact design.
  • the motor is arranged above the upper blade and drives the upper blade by means of a belt. By laying the drive motor on the circular blade a narrower design of the slitter is possible.
  • a cutting device with rotary-driven knife for Fasson cut cardboard plates is disclosed.
  • the cutting edge of the cutting device consists of two separately driven circular knives, which are driven by a gear and an over the entire width of the machine extending drive shaft.
  • the carriage for receiving the circular blade is displaceable transversely to the drive shaft.
  • the circular knives are pivotally received on the axis of the driving gear, while the gears of the driving gear are in constant mesh.
  • the invention has for its object to improve a generic longitudinal cutting device so that the circular blade driving gear from the gear can be decoupled and thus each circular blade is individually switched off.
  • This object is achieved in that the angle between the line connecting the centers of a gear located on the drive shaft with a gear meshing therewith and the feed direction of the upper blade is between 60 ° and 120 ° and that a method of the circular blade by means of guide elements and against the direction of the lower blade to the decoupling of a connected with the circular blade gear and the circular blade driving gear is possible.
  • Paper, plastic, and aluminum foil web slitters typically include a series of knives arranged in pairs, with one pair of knives each severing the web longitudinally for division into individual webs.
  • Such longitudinal cutting devices are components of winding machines that produce individual narrower winding rolls from a wide material web.
  • the pairs of knives can be positioned transversely to the direction of web travel.
  • the knife pairs usually consist of an upper blade, in particular a circular blade, which is freely rotatably mounted and driven by the material web and a driven lower blade, in particular a pot knife or provided with cutting edges groove shaft.
  • the longitudinal cutting device 1 is shown with a gear transmission.
  • the longitudinal cutting device 1 consists of an upper blade 2, in particular a circular blade, a holder 3 for the circular blade 2, which is attached to a single blade holder 4.
  • the single knife holder 4 is detachably mounted on a carriage 5.
  • the carriage 5 in turn is mounted linearly displaceable on a supporting beam 6 by means of linear guide rails 7.
  • the drive shaft 8 for the circular blade 2 is rotatably mounted in a boom 9.
  • the boom 9 in turn is connected to the carriage 5.
  • the drive shaft 8 is circumferentially form-fitting, guided for transmitting torque and axially displaceable by a bushing 11, wherein the bush 11 is freely rotatably mounted on the carriage 5 and on the socket a circular blade 2 driving gear 14 is fixed.
  • the section shown in Figure 2 by the inclusion of the drive shaft 8 and through the bushing 11 and the boom 9 is used to illustrate the drive of the circular blade 2.
  • the sleeve 11 is positively, but axially displaceable on the drive shaft 8, wherein the sleeve 11 rotatably is connected to the outer ring of a bearing 12.
  • the inner ring of the bearing 12 in turn is fixed in the boom 9, so that the bushing 11 is rotatably mounted.
  • the gear 13 On the outer surface of the bush 11, the gear 13 is fixed to drive the circular blade 2.
  • the bushing 11 is axially displaceable over the longitudinal profile and / or the positive-locking elements 10 of the drive shaft 8.
  • the drive shaft 8 can be profiled, for example, be designed as a square wave or it is equipped with positive elements 10, such as sliding blocks, feather keys or ball bearings, as used for example in linear guides. It is of course also a combination of profiled and provided with positive elements 10 drive shaft 8 conceivable.
  • the torques are transmitted via the drive shaft 8 to the bush 11 and then to the gear 13.
  • the circular blade 2 is then driven by a gear 14, wherein the circular blade 2 is fixedly connected to the gear 14.
  • the material web 15 extends between the circular blade 2 and the lower blade 16, which perform a shear cut against each other be employed.
  • the cutting edge of the circular blade 2 is moved against the cutting edge of the lower blade 16.
  • the guide elements 17 can move the circular blade about 20 to 30 mm radially in the direction of the lower blade.
  • a protective cover 18 is additionally arranged.
  • FIG. 1 A preferred embodiment of the invention is shown in FIG.
  • the basic structure of the longitudinal cutting device corresponds to the embodiment described in FIG.
  • the holder 20 for the circular blade 2 is in an altered form, it also serves to receive an intermediate gear 21.
  • the drive of the intermediate gear 21 via the drive shaft 8 and the attached thereto via a bush 11 gear 22.
  • the drive shaft 8 is mounted directly on the carriage 5 in a short boom 23 rotatably.
  • the area 24 between the web 15 and the short boom 23 is free.
  • this area 24 can be further facilities for grinding or cleaning the circular blade 2 inserted or fixed. As a result, the disassembly of the circular blade 2 is facilitated.
  • coated material webs 15, such as, for example, adhesive sheets are cut with the circular blade 2, contamination may occur on the circular blade 2.
  • a device which can be arranged in the region 24 is a disk 25 made of felt. The circular disk 25 is used to clean the circular blade 2 and can be brought to the circular blade.
  • the circular blade 2 and the intermediate gear 21 are moved via the guide elements 17 in the direction of the single knife holder 4.
  • the gears 21, 22 remain continuously engaged.
  • the guide elements 17 move the holder 20 and the circular blade 2 and the intermediate gear against the lower blade 16.
  • the rotational movement of the circular blade 2 is thereby generated via a torque generated at the drive shaft 8 to the gear 22, to the intermediate -Zahnrad 21 and then transferred to the gear 14 on the circular blade.
  • the gear 14 is fixedly connected to the circular blade 2 and rotatably supported in the holder 20.
  • the advancing movement of the circular blade 2 takes place first radially in the direction of the lower blade 16 and then axially in the direction of the movement of the carriage 5 against the lower blade 16 to form a shearing system.
  • the driven circular blade 2 has the advantage that a leading cut can be produced, which has a positive effect on the quality of the cut material webs 15.
  • the disk 25 can now be moved out of felt to the circular blade 2 and clean the circular blade 2 during cutting , On the positive side, this reduces ancillary and set-up times.
  • the circular disk 25 can also clean a circular disk 2 which is not in engagement.
  • a device for grinding the circular blade can also be introduced or fixedly mounted in the free area 24.
  • a housing 26 for protecting the circular disk and for collecting dirt or abrasive particles is arranged.

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

Description

Technisches GebietTechnical area

Die Erfindung betrifft eine Längsschneideeinrichtung zum Schneiden von laufenden Materialbahnen, mit mindestens einem Schlitten, der an einer sich quer zur Bahnlaufrichtung erstreckenden Führung verstellbar gelagert ist und der eine Halterung für ein frei drehbar gelagertes Obermesser aufweist, welches in Richtung des Untermessers zustellbar ist und einer Antriebswelle, die sich über die gesamte Breite der Maschine erstreckt und über die das Obermesser, insbesondere ein Kreismesser, mittels eines Getriebes antreibbar ist.The invention relates to a longitudinal cutting device for cutting current material webs, with at least one carriage which is adjustably mounted on a transversely extending to the web running direction guide and which has a holder for a freely rotatably mounted upper blade, which is deliverable in the direction of the lower blade and a drive shaft which extends over the entire width of the machine and over which the upper blade, in particular a circular blade, can be driven by means of a gear.

Stand der TechnikState of the art

Längsschneideeinrichtungen für Papier, Kunststoffolien- und Aluminiumfolienbahnen enthalten üblicherweise mehrere paarweise angeordnete Kreismesser, wobei jeweils ein Kreismesserpaar die Bahn zur Aufteilung in Einzelbahnen in Längsrichtung durchtrennt. Derartige Längsschneideeinrichtungen sind Bestandteile von Wickelmaschinen, die aus einer breiten Materialbahn einzelne schmalere Wickelrollen herstellen. Um verschiedene Wickelrollenformate herstellen zu können, sind die Kreismesserpaare quer zur Bahnlaufrichtung positionierbar.Slitting devices for paper, plastic foil and aluminum foil webs usually contain a plurality of circular knives arranged in pairs, with one pair of circular knives each severing the web for division into individual webs in the longitudinal direction. Such longitudinal cutting devices are components of winding machines that produce individual narrower winding rolls from a wide material web. In order to produce different winding roll formats, the pairs of circular knives can be positioned transversely to the direction of web travel.

Eine gattungsgemäße Längsschneideeinrichtung ist aus der WO 99/47317 bekannt. Die hierin beschriebene Längsschneideeinrichtung besteht aus einem angetriebenen Obermesser und einem frei drehbar gelagerten Untermesser. Als Obermesser werden insbesondere Kreismesser und als Untermesser insbesondere Topfmesser verwendet. Jedes Messerpaar ist zur Einstellung der erforderlichen Formatbreite quer zur Laufrichtung der zu teilenden Bahn positionierbar. Zusätzlich ist jedes Obermesser in Richtung seiner Drehachse gegen das zugeordnete Untermesser anstellbar, damit die beiden Schneidkanten exakt relativ zueinander ausgerichtet werden können. Weiterhin ist jedes Obermesser in eine inaktive Position anhebbar, falls es nicht zum Längsschneiden benötigt wird.A generic longitudinal cutting device is known from WO 99/47317. The longitudinal cutting device described herein consists of a driven upper blade and a freely rotatably mounted lower blade. In particular, circular knives are used as upper knives and, in particular, pot knives are used as lower knives. Each pair of knives can be positioned transversely to the running direction of the web to be divided in order to set the required format width. In addition, each upper blade is adjustable in the direction of its axis of rotation against the associated lower blade, so that the two cutting edges can be aligned exactly relative to each other. Furthermore, each upper blade can be raised to an inactive position if it is not needed for slitting.

Als Drehantrieb für das Obermesser dient ein Elektromotor, wobei insbesondere bürstenlose Gleichstrommotoren in sehr kompakter Bauweise verwendet werden. Der Motor ist über dem Obermesser angeordnet und treibt das Obermesser mittels eines Riemens an. Durch die Verlegung des Antriebsmotors über das Kreismesser ist eine schmalere Bauweise der Längsschneideeinrichtung möglich.As a rotary drive for the upper blade is an electric motor, in particular brushless DC motors are used in a very compact design. The motor is arranged above the upper blade and drives the upper blade by means of a belt. By laying the drive motor on the circular blade a narrower design of the slitter is possible.

In der amerikanischen Patentschrift US 3,974,727 ist eine Schneidvorrichtung mit drehangetriebenem Messer zum Fasson schneiden von Kartonplatten offenbart. Die Schneide der Schneidvorrichtung besteht dabei aus zwei separat angetriebenen Kreismessern, die über ein Getriebe und eine sich über die gesamte Breite der Maschine erstreckende Antriebswelle angetrieben werden. Zur individuellen Anstellung der Schneidvorrichtung an die jeweilige Schneidposition ist der Schlitten zur Aufnahme der Kreismesser quer zur Antriebswelle verschiebbar. Zur Einstellung der Schnitttiefe sind die Kreismesser über die Achse des antreibenden Zahnrads schwenkbar aufgenommen, dabei befinden sich die Zahnräder des antreibenden Getriebes in ständigem Eingriff.In the US Patent US 3,974,727 a cutting device with rotary-driven knife for Fasson cut cardboard plates is disclosed. The cutting edge of the cutting device consists of two separately driven circular knives, which are driven by a gear and an over the entire width of the machine extending drive shaft. For individual adjustment of the cutting device to the respective cutting position, the carriage for receiving the circular blade is displaceable transversely to the drive shaft. To adjust the depth of cut, the circular knives are pivotally received on the axis of the driving gear, while the gears of the driving gear are in constant mesh.

Eine weitere Schneideinrichtung zum Längsschneiden von Papierbahnen ist in der US 4,116,098 offenbart. Auf einer quer zur Richtung der Materialbahn angeordneten Antriebsachse sind verschiebbar Schneideinrichtungen angeordnet. Die Schneideinrichtungen bestehen dabei aus einem auf der quer zur Materialbahn angeordneten Antriebszahnrädern, die unmittelbar das Schneidmesser antreiben. Das Schneidmesser ist dabei ebenfalls auf einer quer zur Richtung der Materialbahn angeordneten Achse in der Schneideinrichtung gelagert. Antriebszahnrad und Schneidmesser bleiben kontinuierlich im Eingriff. Dass das Antriebszahnrad und das Schneidmesser gegeneinander verschiebbar sind, kann der Druckschrift nicht entnommen werden.Another cutter for slitting paper webs is disclosed in US 4,116,098. On a transverse to the direction of the web arranged drive axis slidable cutting devices are arranged. The cutting devices consist of a arranged on the transverse to the material web drive gears, which drive directly the cutting blade. The cutting blade is also mounted on a transversely arranged to the direction of the web axis in the cutter. Drive gear and cutting blade remain continuously engaged. That the drive gear and the cutting blade are mutually displaceable, the publication can not be removed.

Darstellung der ErfindungPresentation of the invention

Der Erfindung liegt die Aufgabe zugrunde, eine gattungsgemäße Längsschneideeinrichtung so zu verbessern, dass das Kreismesser antreibende Zahnrad vom Getriebe entkoppelbar und somit jedes Kreismesser individuell abschaltbar ist.The invention has for its object to improve a generic longitudinal cutting device so that the circular blade driving gear from the gear can be decoupled and thus each circular blade is individually switched off.

Diese Aufgabe wird dadurch gelöst, dass der Winkel zwischen der Verbindungslinie der Mittelpunkte eines auf der Antriebswelle befindlichen Zahnrads mit einem mit diesem im Eingriff befindlichen Zahnrad und der Zustellrichtung des Obermessers zwischen 60° und 120° beträgt und dass ein Verfahren des Kreismessers mittels Führungselementen und gegen die Richtung des Untermessers bis zur Entkopplung eines mit dem Kreismesser verbundenen Zahnrads und den Kreismesser antreibenden Zahnrads möglich ist.This object is achieved in that the angle between the line connecting the centers of a gear located on the drive shaft with a gear meshing therewith and the feed direction of the upper blade is between 60 ° and 120 ° and that a method of the circular blade by means of guide elements and against the direction of the lower blade to the decoupling of a connected with the circular blade gear and the circular blade driving gear is possible.

Vorteilhafte Ausgestaltungsformen der Erfindung ergeben sich aus den Unteransprüchen.Advantageous embodiments of the invention will become apparent from the dependent claims.

Durch die erfindungsgemäße Zustellbarkeit über einen Winkel von 60° bis 120° in Bezug auf die Verbindungslinie der Mittellinie der Mittelpunkte eines auf der Antriebswelle befindlichen Zahnrads mit einem mit diesem im Eingriff befindlichen Zahnrad und der Zustellrichtung des Obermessers ist es nun möglich, daß das Kreismesser antreibende Zahnrad vom Getriebe gelöst werden kann. Dies bietet den Vorteil, daß nur diejenigen Kreismesser die eine wirkliche Schneidarbeit leisten sich im Eingriff mit dem antreibenden Zahnrad befinden und auch nur diese Kreismesser angetrieben werden, die für die Schneidoperation benötigt werden. Die nicht benötigten Kreismesser und deren Lagerung wird geschont und der Verschleiß wird minimiert. Gleichzeitig benötigt der die Antriebswelle antreibende Motor eine geringere Leistung, wodurch die Wirtschaftlichkeit der Anlage erhöht wird.By the deliverability according to the invention over an angle of 60 ° to 120 ° with respect to the line connecting the center line of the centers of a gear located on the drive shaft with a gear meshing with this and the feed direction of the upper blade, it is now possible that the circular blade driving gear can be released from the transmission. This offers the advantage that only those circular knives afford a real cutting work are in engagement with the driving gear and only these circular blades are driven, which are needed for the cutting operation. The unnecessary circular knives and their storage is spared and wear is minimized. At the same time, the motor driving the drive shaft requires less power, which increases the efficiency of the system.

Kurze Beschreibung der ZeichnungShort description of the drawing

Nachfolgend soll die Erfindung anhand von Zeichnungen näher erläutert werden. Es zeigen

Figur 1
den prinzipiellen Aufbau einer Längsschneideeinrichtung mit einem Zahnradgetriebe zum Antrieb des Kreismessers,
Figur 2
einen Schnitt durch die Antriebswelle und das Zahnradgetriebe gemäß Figur 1 im Schnitt II-II,
Figur 3
den prinzipiellen Aufbau einer Längsschneideeinrichtung mit einem Zahnradgetriebe zum Antrieb des Kreismessers,
The invention will be explained in more detail with reference to drawings. Show it
FIG. 1
the basic structure of a longitudinal cutting device with a gear transmission for driving the circular blade,
FIG. 2
a section through the drive shaft and the gear transmission according to Figure 1 in section II-II,
FIG. 3
the basic structure of a longitudinal cutting device with a gear transmission for driving the circular blade,

Wege zur Ausführung der ErfindungWays to carry out the invention

Längsschneideeinrichtungen für Papier, Kunststoffolien- und Aluminiumfolienbahnen enthalten üblicherweise eine Reihe von paarweise angeordneten Messern, wobei jeweils ein Messerpaar die Bahn zur Aufteilung in Einzelbahnen in Längsrichtung durchtrennt. Derartige Längsschneideeinrichtungen sind Bestandteile von Wickelmaschihen, die aus einer breiten Materialbahn einzelne schmalere Wickelrollen herstellen. Um verschiedene Wickelrollenformate herstellen zu können, sind die Messerpaare quer zur Bahnlaufrichtung positionierbar.
Die Messerpaare bestehen üblicherweise aus einem Obermesser, insbesondere einem Kreismesser, das frei drehbar gelagert und von der Materialbahn angetrieben ist und einem angetriebenen Untermesser, insbesondere einem Topfmesser oder einer mit Schneidkanten versehenen Nutenwelle. Durch das Antreiben des Obermessers mit einer höheren Drehgeschwindigkeit als der des Untermessers ist es möglich einen voreilenden Schnitt zu erzeugen.Paper, plastic, and aluminum foil web slitters typically include a series of knives arranged in pairs, with one pair of knives each severing the web longitudinally for division into individual webs. Such longitudinal cutting devices are components of winding machines that produce individual narrower winding rolls from a wide material web. In order to produce different winding roll formats, the pairs of knives can be positioned transversely to the direction of web travel.
The knife pairs usually consist of an upper blade, in particular a circular blade, which is freely rotatably mounted and driven by the material web and a driven lower blade, in particular a pot knife or provided with cutting edges groove shaft. By driving the upper knife with a higher rotational speed than that of the lower blade, it is possible to produce a leading cut.

In Figur 1 ist die Längsschneideeinrichtung 1 mit einem Zahnradgetriebe dargestellt. Die Längsschneideeinrichtung 1 besteht aus einem Obermesser 2, insbesondere einem Kreismesser, einer Halterung 3 für das Kreismesser 2, die an einem Einzelmesserhalter 4 befestigt ist. Der Einzelmesserhalter 4 ist auf einem Schlitten 5 lösbar befestigt. Der Schlitten 5 wiederum ist auf einem Tragbalken 6 mittels linearer Führungsschienen 7 linear verschiebbar montiert. Die Antriebswelle 8 für das Kreismesser 2 ist in einem Ausleger 9 drehbar gelagert. Der Ausleger 9 wiederum ist mit dem Schlitten 5 verbunden. Die Antriebswelle 8 ist umfänglich formschlüssig, zur Übertragung eines Drehmomentes und axial verschiebbar durch eine Buchse 11 geführt, wobei die Buchse 11 frei drehbar am Schlitten 5 befestigt ist und an der Buchse ein das Kreismesser 2 antreibendes Zahnrad 14 befestigt ist.In Figure 1, the longitudinal cutting device 1 is shown with a gear transmission. The longitudinal cutting device 1 consists of an upper blade 2, in particular a circular blade, a holder 3 for the circular blade 2, which is attached to a single blade holder 4. The single knife holder 4 is detachably mounted on a carriage 5. The carriage 5 in turn is mounted linearly displaceable on a supporting beam 6 by means of linear guide rails 7. The drive shaft 8 for the circular blade 2 is rotatably mounted in a boom 9. The boom 9 in turn is connected to the carriage 5. The drive shaft 8 is circumferentially form-fitting, guided for transmitting torque and axially displaceable by a bushing 11, wherein the bush 11 is freely rotatably mounted on the carriage 5 and on the socket a circular blade 2 driving gear 14 is fixed.

Der in Figur 2 dargestellte Schnitt durch die Aufnahme der Antriebswelle 8 sowie durch die Buchse 11 und den Ausleger 9 dient zur Verdeutlichung des Antriebs des Kreismessers 2. Die Buchse 11 ist formschlüssig, aber axial verschieblich auf der Antriebswelle 8 angeordnet, wobei die Buchse 11 drehfest mit dem Außenring eines Lagers 12 verbunden ist. Der Innenring des Lagers 12 wiederum ist im Ausleger 9 befestigt, so daß die Buchse 11 drehbar gelagert ist. Auf der äußeren Oberfläche der Buchse 11 ist das Zahnrad 13 zum Antrieb des Kreismessers 2 befestigt.The section shown in Figure 2 by the inclusion of the drive shaft 8 and through the bushing 11 and the boom 9 is used to illustrate the drive of the circular blade 2. The sleeve 11 is positively, but axially displaceable on the drive shaft 8, wherein the sleeve 11 rotatably is connected to the outer ring of a bearing 12. The inner ring of the bearing 12 in turn is fixed in the boom 9, so that the bushing 11 is rotatably mounted. On the outer surface of the bush 11, the gear 13 is fixed to drive the circular blade 2.

Zur Positionierung des Kreismessers 2 ist die Buchse 11 axial über das Längsprofil und/oder die formschlüssigen Elemente 10 der Antriebswelle 8 verschiebbar. Die Antriebswelle 8 kann dabei profiliert, zum Beispiel als Kantwelle ausgeführt sein oder sie ist mit formschlüssigen Elementen 10, wie zum Beispiel Nutensteinen, Passfedern oder Kugelführungen, wie sie zum Beispiel in Linearführungen eingesetzt werden, ausgestattet. Es ist natürlich auch eine Kombination aus profilierter und mit formschlüssigen Elementen 10 versehener Antriebswelle 8 vorstellbar. Die Drehmomente werden über die Antriebswelle 8 an die Buchse 11 und anschließend an das Zahnrad 13 übertragen. Mittels des Zahnrads 13 wird dann das Kreismesser 2 über ein Zahnrad 14 angetrieben, wobei das Kreismesser 2 fest mit dem Zahnrad 14 verbunden ist.For positioning the circular knife 2, the bushing 11 is axially displaceable over the longitudinal profile and / or the positive-locking elements 10 of the drive shaft 8. The drive shaft 8 can be profiled, for example, be designed as a square wave or it is equipped with positive elements 10, such as sliding blocks, feather keys or ball bearings, as used for example in linear guides. It is of course also a combination of profiled and provided with positive elements 10 drive shaft 8 conceivable. The torques are transmitted via the drive shaft 8 to the bush 11 and then to the gear 13. By means of the gear 13, the circular blade 2 is then driven by a gear 14, wherein the circular blade 2 is fixedly connected to the gear 14.

Wie in Figur 1 dargestellt, verläuft die Materialbahn 15 zwischen dem Kreismesser 2 und dem Untermesser 16, die zur Durchführung eines Scherenschnitts gegeneinander angestellt werden. Über Führungselemente 17 wird die Schneidkante des Kreismessers 2 gegen die Schneidkante des Untermessers 16 bewegt. Für die Zustellung des Kreismessers 2 können die Führungselemente 17 das Kreismesser ca. 20 bis 30 mm radial in Richtung des Untermessers verfahren. Beim radialen Zustellen des Kreismessers 2 gegen das Untermesser 16 in Richtung des Pfeils P verändert sich der Achsabstand der Antriebswelle 8 zum Zentrum 19 des Kreismessers 2. Der Abstandsfehler bewegt sich aber in so kleinen Bereichen, daß dies auf das Abwälzen des Zahnradpaares keinen negativen Einfluß hat.As shown in Figure 1, the material web 15 extends between the circular blade 2 and the lower blade 16, which perform a shear cut against each other be employed. About guide elements 17, the cutting edge of the circular blade 2 is moved against the cutting edge of the lower blade 16. For the delivery of the circular blade 2, the guide elements 17 can move the circular blade about 20 to 30 mm radially in the direction of the lower blade. When radial delivery of the circular blade 2 against the lower blade 16 in the direction of arrow P, the center distance of the drive shaft 8 to the center 19 of the circular blade 2 changes the distance error but moves in such small areas that this has no negative influence on the rolling of the gear pair ,

Beim Herausfahren des Kreismessers 2 aus der Schneidposition, entgegen der Richtung des Pfeils P, werden das antreibende Zahnrad 13 und das von diesem angetriebenen Zahnrad 14 entkoppelt. Die Entkopplung und die Kopplung der Zahnräder 13, 14 findet dabei vornehmlich während des Stillstands der Antriebswelle 8 statt, so daß eine Beschädigung der Zahnräder 13, 14 ausgeschlossen ist. Das Verfahren des Kreismessers und des daran befestigten Zahnrads 14 ist ohne weitere Probleme möglich, weil das Zahnrad 14 mit dem Kreismesser 2 in der Halterung 3 frei drehbar gelagert ist.When moving out of the circular blade 2 from the cutting position, opposite to the direction of the arrow P, the driving gear 13 and driven by this gear 14 are decoupled. The decoupling and the coupling of the gears 13, 14 takes place primarily during standstill of the drive shaft 8, so that damage to the gears 13, 14 is excluded. The method of the circular blade and the attached gear 14 is possible without further problems, because the gear 14 is freely rotatably mounted with the circular blade 2 in the holder 3.

Nach dem Koppeln und Zustellen des Kreismessers 2 gegen das Untermesser 16 bewegt sich das Kreismesser 2 zusammen mit dem Zahnrad 14 axial gegen das Untermesser 16, bis daß das Kreismesser 2 und das Untermesser 16 zusammen ein Schersystem bilden. Um das Kreismesser 2 ist zusätzlich eine Schutzhaube 18 angeordnet.After coupling and advancing the circular blade 2 against the lower blade 16, the circular blade 2 moves together with the gear 14 axially against the lower blade 16 until the circular blade 2 and the lower blade 16 together form a shearing system. To the circular blade 2, a protective cover 18 is additionally arranged.

Eine bevorzugte Ausführungsform der Erfindung ist in Figur 3 wiedergegeben. Der prinzipielle Aufbau der Längsschneideeinrichtung entspricht der in Figur 1 beschriebenen Ausführungsform. Die Halterung 20 für das Kreismesser 2 liegt in einer veränderten Form vor, sie dient zusätzlich zur Aufnahme eines Zwischen-Zahnrads 21. Der Antrieb des Zwischen-Zahnrads 21 erfolgt über die Antriebswelle 8 und dem darauf über eine Buchse 11 befestigten Zahnrad 22. Die Antriebswelle 8 ist unmittelbar am Schlitten 5 in einem kurzen Ausleger 23 drehbar gelagert.A preferred embodiment of the invention is shown in FIG. The basic structure of the longitudinal cutting device corresponds to the embodiment described in FIG. The holder 20 for the circular blade 2 is in an altered form, it also serves to receive an intermediate gear 21. The drive of the intermediate gear 21 via the drive shaft 8 and the attached thereto via a bush 11 gear 22. The drive shaft 8 is mounted directly on the carriage 5 in a short boom 23 rotatably.

Durch die Aufnahme eines Zwischen-Zahnrads 21 in das Getriebe zum Antrieb des Kreismessers 2 und der Lage der Antriebswelle 8 zum Zwischen-Zahnrad 21 wird der Bereich 24 zwischen der Materialbahn 15 und dem kurzen Ausleger 23 frei. In diesen Bereich 24 können weitere Einrichtungen zum Schleifen oder Reinigen des Kreismessers 2 eingeführt oder fest montiert werden. Hierdurch wird die Demontage des Kreismessers 2 erleichtert.By receiving an intermediate gear 21 in the gear to drive the circular blade 2 and the position of the drive shaft 8 to the intermediate gear 21, the area 24 between the web 15 and the short boom 23 is free. In this area 24 can be further facilities for grinding or cleaning the circular blade 2 inserted or fixed. As a result, the disassembly of the circular blade 2 is facilitated.

Werden mit dem Kreismesser 2 beispielsweise beschichtete Materialbahnen 15, wie beispielsweise Klebefolien, geschnitten, so kann es zu Verunreinigungen auf dem Kreismesser 2 kommen. Eine Einrichtung, die im Bereich 24 angeordnet werden kann, ist eine Kreisscheibe 25 aus Filz. Die Kreisscheibe 25 dient zur Reinigung des Kreismessers 2 und kann an das Kreismesser herangeführt werden.If, for example, coated material webs 15, such as, for example, adhesive sheets, are cut with the circular blade 2, contamination may occur on the circular blade 2. A device which can be arranged in the region 24 is a disk 25 made of felt. The circular disk 25 is used to clean the circular blade 2 and can be brought to the circular blade.

Zum Einführen der Materialbahn 15 werden das Kreismesser 2 und das Zwischen-Zahnrad 21 über die Führungselemente 17 in Richtung des Einzelmesserhalters 4 bewegt. Dabei bleiben die Zahnräder 21, 22 kontinuierlich im Eingriff. Nach dem Einführen der Materialbahn 15 verfahren die Führungselemente 17 die Halterung 20 und das Kreismesser 2 sowie das Zwischen-Zahnrad gegen das Untermesser 16. Die Drehbewegung des Kreismessers 2 wird dabei über ein an der Antriebswelle 8 erzeugtes Drehmoment an das Zahnrad 22, an das Zwischen-Zahnrad 21 und anschließend auf das Zahnrad 14 am Kreismesser übertragen. Das Zahnrad 14 ist fest mit dem Kreismesser 2 verbunden und in der Halterung 20 drehbar gelagert. Die Zustellbewegung des Kreismesser 2 erfolgt zuerst radial in Richtung des Untermessers 16 und anschließend axial in Richtung der Verfahrbewegung des Schlittens 5 gegen das Untermesser 16 zur Bildung eines Schersystems. Das angetriebene Kreismesser 2 bietet den Vorteil, daß ein voreilender Schnitt erzeugt werden kann, was sich positiv auf die Schnittqualität der Materialbahnen 15 auswirkt.For introducing the material web 15, the circular blade 2 and the intermediate gear 21 are moved via the guide elements 17 in the direction of the single knife holder 4. The gears 21, 22 remain continuously engaged. After insertion of the material web 15, the guide elements 17 move the holder 20 and the circular blade 2 and the intermediate gear against the lower blade 16. The rotational movement of the circular blade 2 is thereby generated via a torque generated at the drive shaft 8 to the gear 22, to the intermediate -Zahnrad 21 and then transferred to the gear 14 on the circular blade. The gear 14 is fixedly connected to the circular blade 2 and rotatably supported in the holder 20. The advancing movement of the circular blade 2 takes place first radially in the direction of the lower blade 16 and then axially in the direction of the movement of the carriage 5 against the lower blade 16 to form a shearing system. The driven circular blade 2 has the advantage that a leading cut can be produced, which has a positive effect on the quality of the cut material webs 15.

Während des Schneidens von beschichteten Materialbahnen 15, wie beispielsweise Klebefolien, bleiben Teile des Beschichtungswerkstoffs aus dem Scherbereich auf dem Kreismesser 2 haften, In den Bereich 24 kann nun die Kreisscheibe 25 aus Filz an das Kreismesser 2 herangefahren werden und das Kreismesser 2 während des Schneidens reinigen. Positiv hierbei ist, daß sich Neben- und Rüstzeiten verringern. Natürlich kann die Kreisscheibe 25 auch eine nicht im Eingriff befindliche Kreisscheibe 2 reinigen.During the cutting of coated material webs 15, such as adhesive films, parts of the coating material from the shear area on the circular blade 2 adhere, In the area 24, the disk 25 can now be moved out of felt to the circular blade 2 and clean the circular blade 2 during cutting , On the positive side, this reduces ancillary and set-up times. Of course, the circular disk 25 can also clean a circular disk 2 which is not in engagement.

Neben dem Reinigen der Kreisscheibe 2 kann in den freien Bereich 24 ebenfalls eine Einrichtung zum Schleifen des Kreismessers eingeführt oder fest montiert werden. Um die Kreisscheibe 25 ist ein Gehäuse 26 zum Schutz der Kreisscheibe und zum Auffangen von Verschmutzungen oder Schleifpartikeln angeordnet.In addition to cleaning the circular disk 2, a device for grinding the circular blade can also be introduced or fixedly mounted in the free area 24. Around the circular disk 25, a housing 26 for protecting the circular disk and for collecting dirt or abrasive particles is arranged.

Claims (4)

  1. Longitudinal cutting device for cutting moving material webs (15), having at least one carriage (5) which is mounted such that it can be adjusted on a guide (7) extending transversely with respect to the web running direction and which has a holder (3) with a freely rotatably mounted top knife (2), which can be fed in the direction of the bottom knife (16), and a drive shaft (8), which extends over the entire width of the machine and via which the top knife (2), in particular a circular knife, can be driven by means of a gear mechanism, characterized in that the angle between the feed direction of the top knife (2) and the connecting line between the centres of a gear wheel (13) located on the drive shaft and a gear wheel (14, 21) that is in engagement with the latter is between 60° and 120°, and in that it is possible to move the circular knife (2) by means of guide elements (17) and counter to the direction of the bottom knife (16) until a gear wheel (14) that is connected to the circular knife and the gear wheel (13, 21) that drives the circular knife (2) are uncoupled.
  2. Longitudinal cutting device according to Claim 1, characterized in that the drive shaft (8) is guided circumferentially by a form fit for the transmission of a torque and axially displaceably by a bush (11) which is fixed to the carriage (5) such that it can rotate freely and to which a gear wheel (14) driving the circular knife (2) is fixed.
  3. Longitudinal cutting device according to either of Claims 1 and 2, characterized by an intermediate gear wheel (21) which is arranged between the gear wheel (22) and the circular knife (2) and which is fixed to the holder (20) of the circular knife (2) such that it can rotate, it being possible for the intermediate gear wheel (21) firstly to be driven by the gear wheel (22) and secondly to drive the circular knife (2).
  4. Longitudinal cutting device according to Claim 3, characterized by a circular disc (25) for cleaning the circular knife (2), which disc is arranged in the region (24) between the material web (50) and the drive shaft (8).
EP04703092A 2003-02-19 2004-01-17 Longitudinal cutting device for cutting out strips in a moving web of material Expired - Lifetime EP1594663B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE2003106858 DE10306858A1 (en) 2001-09-27 2003-02-19 Longitudinal cutting machine for cutting sheet of material, has holder attached to the retainer fastened to the carriage with an upper cutter turned towards a lower cutter via the drive shaft of a gear wheel
DE10306858 2003-02-19
PCT/EP2004/000334 WO2004073943A1 (en) 2003-02-19 2004-01-17 Longitudinal cutting device for cutting out strips in a moving web of material

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EP1594663A1 EP1594663A1 (en) 2005-11-16
EP1594663B1 true EP1594663B1 (en) 2006-11-15

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EP04703092A Expired - Lifetime EP1594663B1 (en) 2003-02-19 2004-01-17 Longitudinal cutting device for cutting out strips in a moving web of material

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US (1) US7387057B2 (en)
EP (1) EP1594663B1 (en)
DE (1) DE502004002006D1 (en)
WO (1) WO2004073943A1 (en)

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EP1594663A1 (en) 2005-11-16
DE502004002006D1 (en) 2006-12-28
WO2004073943A1 (en) 2004-09-02
US20060162521A1 (en) 2006-07-27
US7387057B2 (en) 2008-06-17

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