EP1062175B1 - Longitudinal cutting device for a winding machine - Google Patents

Longitudinal cutting device for a winding machine Download PDF

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Publication number
EP1062175B1
EP1062175B1 EP99904878A EP99904878A EP1062175B1 EP 1062175 B1 EP1062175 B1 EP 1062175B1 EP 99904878 A EP99904878 A EP 99904878A EP 99904878 A EP99904878 A EP 99904878A EP 1062175 B1 EP1062175 B1 EP 1062175B1
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EP
European Patent Office
Prior art keywords
blades
blade
upper blade
cutting device
longitudinal 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
EP99904878A
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German (de)
French (fr)
Other versions
EP1062175A1 (en
Inventor
Armin Hutzenlaub
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
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Kampf GmbH and Co Maschinenfabrik
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 Kampf GmbH and Co Maschinenfabrik filed Critical Kampf GmbH and Co Maschinenfabrik
Publication of EP1062175A1 publication Critical patent/EP1062175A1/en
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Publication of EP1062175B1 publication Critical patent/EP1062175B1/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
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/20—Cutting beds
    • 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
    • B26D7/2621—Means for mounting the cutting member for circular cutters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/02—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with longitudinal slitters or perforators
    • 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
    • B26D7/20—Cutting beds
    • B26D2007/202—Rollers or cylinders being pivoted during operation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/14—Cutting, e.g. perforating, punching, slitting or trimming
    • B31B50/16—Cutting webs
    • B31B50/18—Cutting webs longitudinally
    • 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
    • Y10T83/7813—Tool pair elements angularly related
    • 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
    • Y10T83/783—Tool pair comprises contacting overlapped discs
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/929—Tool or tool with support
    • Y10T83/9457—Joint or connection
    • Y10T83/9464—For rotary tool

Definitions

  • the invention relates to a longitudinal cutting device for a winding machine for Winding up running material webs, in particular plastic webs, with one row of upper knives, which are designed as disk-shaped circular knives, and with a Series of lower knives, which are designed as circular knives.
  • winding machines referred to as roll cutting machines contain a slitter from which the web by slitting in Individual webs are divided, which are then wound into winding rolls.
  • winding plastic sheets it is necessary that two neighboring ones Winding rolls have a certain distance from each other so that they do not stick to interlocking a course of the webs.
  • a touch of two neighboring ones Winding rolls on their end faces must also be avoided so that Cross profile fluctuations no friction occurs between two winding rolls when these increase differently radially.
  • the winding rollers are known to be axially parallel with a distance arranged winding axes wound from each other.
  • the single tracks are alternately fed one of the two winding axes, so that two Adjacent winding rolls are wound up offset from one another. This is structurally relatively complex, since the winding machine has two winding axes got to.
  • the invention is therefore based on the object of a longitudinal cutting device to provide a winding machine with which narrow strips of Cut out less than 5 mm safely and have it removed.
  • the longitudinal cutting device has a number of upper knives 1, which as disc-shaped circular knives are designed.
  • the upper knives 1 are known Way mounted crosswise on a common axis, so that they in the desired cutting positions can be positioned. All top knives are 1 each connected to a rotary drive, for example the common axis driven.
  • the upper knife 1 are rectangular in cross section, so that they are two parallel Have side surfaces against which the cutting edge of a lower knife 2 can be employed. Each side of an upper knife 1 thus forms with one Lower knife 2 is a pair of knives that cut through the plastic web in the longitudinal direction. The two longitudinal cuts on each upper knife 1 make each one narrower Strips cut out of the web at a width equal to the width of the upper knife 1 corresponds.
  • the width of an upper knife 1 is less than 5 mm, preferably 1 mm to 2 mm to avoid the loss of web material by cutting out of the strip as low as possible with sufficient stability of the upper knife 1 hold.
  • All lower knives 2 are freely rotatable on a support shaft 3 which is fixed during operation stored. In operation, they are resilient against one side of the associated Upper knife 1 pressed and thus driven by this.
  • two upper knives 2 are assigned to each upper knife 1.
  • the lower knife 2 are also circular knives, which are designed and on the support axis 3 are mounted so that their rotating plane 4 is at an acute angle to the rotating plane 5 of the upper knife 1 runs.
  • the rotating planes 4 of two lower knives 2 assigned to an upper knife 1 are each inclined in mirror image to each other so that their cutting edges move towards and away from each other in one cycle.
  • both cutting edges contact one side of the upper knife 1.
  • the two cutting edges have the exact opposite of the upper knife 1
  • Lower knife 2 the maximum distance from each other, as in Figure 1 in each case lower position is shown.
  • pot knives are used as the bottom knife, which Have the shape of a truncated cone, the circumferential edge of the truncated cone Forms cutting edge.
  • Each lower knife 2 is on a ball bearing 7 on one Carrier bush 8 fastened freely rotatable.
  • the outer lateral surfaces of the carrier bushes 8 have the shape of a cylindrical surface, which is against the central axis 9 of the support axis 3 is inclined. So the outer race of each ball bearing 7 rotates with it attached lower knife 2 about an axis which is relative to the central axis 9 of the Support axis 3 is inclined at an acute angle.
  • the inner surface of everyone Carrier bush 8 runs parallel to the lateral surface of the support axis 3.
  • each connecting socket 10 with the two carrier bushings 8 fastened thereon fixed against rotation by means of two lateral locking pins 11, which are characterized by the extend two sockets 8, 10 and engage in an axial groove of the support shaft 3.
  • each connecting socket 10 is positioned with the ones on it fastened parts automatically in the cutting position via the lower knife 2, which are Align with the stationary upper knife 1 when placing it on it.
  • the lower knives 2 are each limited to the ball bearings 7 parallel to the central axis 9 movably mounted. Between the ball bearing 7 and the front shoulder each Lower knife 2 is a compression spring 12, of which the cutting edge in each case is pressed against the upper knife 1. The cutting edges of each lower knife 2 are thus resiliently supported on the respective upper knife 1.
  • the outer lateral surfaces of the lower knife 2 are designed so that they in the Form a cutting position parallel to the web, from which the web over their Width is supported when cutting.
  • the outer surface lines of the lower knife 2 at the point of contact on the upper knife 1 a straight line parallel to the axis of rotation of the upper knife 1 and thus in the right Angle to the side faces.
  • the support axis 3 mounted rotatable about 180 ° about its central axis 9.
  • the peripheral area of the carrier bushings 8 in the Area of the upper knife 1 moves, with the two associated lower knife 2 maximum Distance from each other.
  • the upper knife 1 can then in from above the gap 6 between the two lower knives 2 are moved.
  • the Support axis 3 rotated back into the cutting position shown in Figure 1 and in locked in this position.
  • the cutting edges of the Lower knife 2 automatically on the upper knife 1.

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

Abstract

Known winding machines for winding up continuous strips of material, especially plastic strips, use longitudinal cutting devices comprising a series of upper blades (1) embodied as disk-shaped circular blades, and a series of lower blades (2) embodied as circular blades. According to the invention one lower blade (2) each is arranged on both sides of an upper blade (1), the lower blades (2) are mounted in a freely rotating manner on a carrying axle (3) and the planes of rotation (4) of the two lower blades (2) assigned to an upper blade (1) are symmetrically inclined in relation to each other and form an acute angle with said plane of rotation (5) of the upper blade (1) in such a way that the cutting edges of the two lower blades (2) move towards and away from each other during one revolution. The longitudinal cutting device provided for in the invention makes it possible to cut narrow ribbons from the strip and to convey them such that the rolls can be wound on a shared winding axle with the required distance between them.

Description

Technisches GebietTechnical field

Die Erfindung betrifft eine Längsschneidevorrichtung für eine Wickelmaschine zum Aufwickeln laufender Warenbahnen, insbesondere Kunststoffbahnen, mit einer Reihe von Obermessern, die als scheibenförmige Kreismesser ausgebildet sind, und mit einer Reihe von Untermessern, die als Kreismesser ausgebildet sind.The invention relates to a longitudinal cutting device for a winding machine for Winding up running material webs, in particular plastic webs, with one row of upper knives, which are designed as disk-shaped circular knives, and with a Series of lower knives, which are designed as circular knives.

Stand der TechnikState of the art

Als Rollenschneidmaschinen bezeichnete Wickelmaschinen enthalten bekannterweise eine Längsschneidevorrichtung, von der die Warenbahn durch Längsschneiden in Einzelbahnen aufgeteilt wird, die anschließend zu Wickelrollen aufgewickelt werden. Beim Aufwickeln von Kunststoffbahnen ist es erforderlich, daß zwei benachbarte Wickelrollen einen gewissen Abstand voneinander haben, damit sie sich nicht bei einem Verlaufen der Bahnen miteinander verhaken. Eine Berührung zweier benachbarter Wickelrollen an ihren Stirnseiten muß auch vermieden werden, damit bei Querprofilschwankungen keine Reibung zwischen zwei Wickelrollen auftritt, wenn diese unterschiedlich radial zunehmen.It is known that winding machines referred to as roll cutting machines contain a slitter from which the web by slitting in Individual webs are divided, which are then wound into winding rolls. When winding plastic sheets, it is necessary that two neighboring ones Winding rolls have a certain distance from each other so that they do not stick to interlocking a course of the webs. A touch of two neighboring ones Winding rolls on their end faces must also be avoided so that Cross profile fluctuations no friction occurs between two winding rolls when these increase differently radially.

Damit jede Wickelrolle zu ihrer Nachbarrolle den notwendigen axialen Abstand aufweist, werden die Wickelrollen bekannterweise auf zwei achsparallel mit Abstand voneinander angeordnete Wickelachsen aufgewickelt. Die Einzelbahnen werden wechselweise jeweils einer der beiden Wickelachsen zugeführt, so daß jeweils zwei benachbarte Wickelrollen versetzt zueinander aufgewickelt werden. Dies ist konstruktiv relativ aufwendig, da die Wickelmaschine zwei Wickelachsen aufweisen muß.So that each winding roll has the necessary axial distance from its neighboring roll has, the winding rollers are known to be axially parallel with a distance arranged winding axes wound from each other. The single tracks are alternately fed one of the two winding axes, so that two Adjacent winding rolls are wound up offset from one another. This is structurally relatively complex, since the winding machine has two winding axes got to.

Um alle Wickelrollen auf einer gemeinsamen Wickelachse mit dem erforderlichen Abstand voneinander aufwickeln zu können, wurde vorgeschlagen, beim Längsschneiden einen schmalen Streifen aus der Bahn herauszutrennen, und so zwei benachbarte Wickelrollen auf dem erforderlichen axialen Abstand voneinander zu halten. Dieser an sich vorteilhafte, da die Konstruktion der Wickelmaschine vereinfachende Weg konnte sich nicht durchsetzen, da es bisher nicht gelang, die zwischen zwei Bahnen als Abfall herauszuschneidenden Streifen so schmal zu halten, daß der Abfall wirtschaftlich akzeptabel ist. Darüber hinaus treten technische Probleme auf, einen extrem schmalen Streifen beim Schneiden zuverlässig aus der Längsschneidevorrichtung herauszuführen.Around all winding rolls on a common winding axis with the required It was proposed to be able to wind up a distance from one another when slitting to cut a narrow strip out of the way and so two neighboring ones Keep the winding rollers at the required axial distance from each other. This one advantageous because the design of the winding machine could simplify the path not prevail, since it has so far not been possible to waste between two lanes to keep strips to be cut out so narrow that the waste is economical is acceptable. There are also technical problems, an extreme one narrow strips reliably when cutting from the slitter lead out.

Aus dem Dokument GB-A-20 45 672 ist eine Längsschneidevorrichtung für eine Wickelmaschine der gattungsgemäßen Art bekannt, die eine Reihe von als scheibenförmige Kreismesser ausgebildete Obermesser und ein einer Reihe von als Kreismesser ausgebildete Untermesser aufweist, wobei jeweils ein Obermesser mit einem Untermesser ein einen Längsschnitt ausführendes Messerpaar bildet und die Drehebene eines Untermessers spitzwinklig zur Drehebene des zugeordneten Obermessers verläuft.From document GB-A-20 45 672 is a slitter for one Winding machine of the generic type known, which a number of as disk-shaped Circular knives trained upper knives and a series of circular knives trained lower knife, each with an upper knife with a Lower knife forms a pair of knives executing a longitudinal section and the Rotation level of a lower knife at an acute angle to the rotation level of the assigned Upper knife runs.

Darstellung der ErfindungPresentation of the invention

Der Erfindung liegt daher die Aufgabe zugrunde, eine Längsschneidevorrichtung für eine Wickelmaschine bereitzustellen, mit der sich aus der Bahn schmale Streifen von weniger als 5 mm sicher herausschneiden und abführen lassen.The invention is therefore based on the object of a longitudinal cutting device to provide a winding machine with which narrow strips of Cut out less than 5 mm safely and have it removed.

Diese Aufgabe wird mit den Merkmalen des Patentanspruchs 1 gelöst.This object is achieved with the features of patent claim 1.

Die Unteransprüche enthalten bevorzugte, da besonders vorteilhafte Ausgestaltungen einer erfindungsgemäßen Längsschneidevorrichtung. The subclaims contain preferred, since particularly advantageous, configurations a slitting device according to the invention.

Kurze Beschreibung der ZeichnungBrief description of the drawing

Die Zeichnung dient zur Erläuterung der Erfindung anhand eines vereinfacht dargestellten Ausführungsbeispiels.

Figur 1
zeigt einen Ausschnitt einer Längsschneidevorrichtung nach der Erfindung.
The drawing serves to explain the invention with reference to an embodiment shown in simplified form.
Figure 1
shows a section of a longitudinal cutting device according to the invention.

Wege zur Ausführung der ErfindungWays of Carrying Out the Invention

Die Längsschneideeinrichtung weist eine Reihe von Obermessern 1 auf, die als scheibenförmige Kreismesser gestaltet sind. Die Obermesser 1 sind auf bekannte Weise an einer gemeinsamen Achse querverstellbar gelagert, so daß sie in den gewünschten Schnittpositionen positioniert werden können. Alle Obermesser 1 sind jeweils mit einem Drehantrieb verbunden, beispielsweise wird die gemeinsame Achse angetrieben.The longitudinal cutting device has a number of upper knives 1, which as disc-shaped circular knives are designed. The upper knives 1 are known Way mounted crosswise on a common axis, so that they in the desired cutting positions can be positioned. All top knives are 1 each connected to a rotary drive, for example the common axis driven.

Die Obermesser 1 sind im Querschnitt rechteckig ausgeführt, so daß sie zwei parallele Seitenflächen aufweisen, gegen die jeweils die Schneidkante eines Untermessers 2 angestellt werden kann. Jede Seite eines Obermessers 1 bildet so mit einem Untermesser 2 ein Messerpaar, das die Kunststoffbahn in Längsrichtung durchschneidet. Durch die zwei Längsschnitte an jedem Obermesser 1 wird jeweils ein schmaler Streifen in einer Breite aus der Bahn herausgeschnitten, die der Breite des Obermessers 1 entspricht. Die Breite eines Obermessers 1 beträgt weniger als 5 mm, bevorzugt 1 mm bis 2 mm, um den Verlust an Bahnmaterial durch Herausschneiden des Streifens bei ausreichender Stabilität des Obermessers 1 möglichst gering zu halten.The upper knife 1 are rectangular in cross section, so that they are two parallel Have side surfaces against which the cutting edge of a lower knife 2 can be employed. Each side of an upper knife 1 thus forms with one Lower knife 2 is a pair of knives that cut through the plastic web in the longitudinal direction. The two longitudinal cuts on each upper knife 1 make each one narrower Strips cut out of the web at a width equal to the width of the upper knife 1 corresponds. The width of an upper knife 1 is less than 5 mm, preferably 1 mm to 2 mm to avoid the loss of web material by cutting out of the strip as low as possible with sufficient stability of the upper knife 1 hold.

Alle Untermesser 2 sind auf einer im Betrieb feststehenden Tragachse 3 frei drehbar gelagert. Sie werden im Betrieb jeweils federnd gegen eine Seite des zugehörigen Obermessers 1 gedrückt und so von diesem mit angetrieben.All lower knives 2 are freely rotatable on a support shaft 3 which is fixed during operation stored. In operation, they are resilient against one side of the associated Upper knife 1 pressed and thus driven by this.

Wie in Figur 1 dargestellt, sind jedem Obermesser 1 zwei Untermesser 2 zugeordnet. Die Untermesser 2 sind ebenfalls Kreismesser, die so gestaltet und auf der Tragachse 3 gelagert sind, daß ihre Drehebene 4 spitzwinklig zur Drehebene 5 der Obermesser 1 verläuft. Die Drehebenen 4 zweier einem Obermesser 1 zugeordneter Untermesser 2 sind dabei jeweils spiegelbildlich zueinander geneigt, damit sich ihre Schneidkanten bei einem Umlauf aufeinander zu und voneinander weg bewegen. Bei dem in Figur 1 oben dargestellten geringsten Abstand der Schneidkanten zweier Untermesser 2 voneinander kontaktieren beide Schneidkanten jeweils eine Seite des Obermessers 1. Genau entgegengesetzt zum Obermesser 1 haben die beiden Schneidkanten der Untermesser 2 den maximalen Abstand voneinander, wie in Figur 1 jeweils in der unteren Position dargestellt ist. Bei maximalem Abstand der Schneidkanten ist ein ausreichend großer Spalt 6 zwischen zwei zugehörigen Untermessern 2 vorhanden, der es ermöglicht, in diesem Bereich den herausgeschnittenen Streifen abzuführen. Bevorzugt erfolgt dies mittels einer Absaugeinrichtung, die den herausgeschnittenen Streifen aus dem Bereich zwischen den beiden Untermessern 2 absaugt.As shown in FIG. 1, two upper knives 2 are assigned to each upper knife 1. The lower knife 2 are also circular knives, which are designed and on the support axis 3 are mounted so that their rotating plane 4 is at an acute angle to the rotating plane 5 of the upper knife 1 runs. The rotating planes 4 of two lower knives 2 assigned to an upper knife 1 are each inclined in mirror image to each other so that their cutting edges move towards and away from each other in one cycle. In the case of FIG The minimum distance between the cutting edges of two lower knives 2 shown above from each other, both cutting edges contact one side of the upper knife 1. The two cutting edges have the exact opposite of the upper knife 1 Lower knife 2 the maximum distance from each other, as in Figure 1 in each case lower position is shown. At the maximum distance between the cutting edges is a there is a sufficiently large gap 6 between two associated lower cutters 2, which enables the cut-out strip to be removed in this area. This is preferably done by means of a suction device which removes the cut-out Sucks off strips from the area between the two lower knives 2.

Bevorzugt werden als Untermesser 2 sogenannte Topfmesser verwendet, die die Form eines Kegelstumpfs aufweisen, wobei die Umlaufkante des Kegelstumpfes die Schneidkante bildet. Jedes Untermesser 2 ist über ein Kugellager 7 auf einer Trägerbuchse 8 frei rotierbar befestigt. Die äußeren Mantelflächen der Trägerbuchsen 8 haben die Form einer Zylinderfläche, die gegen die Mittelachse 9 der Tragachse 3 geneigt ist. So dreht der äußere Laufring jedes Kugellagers 7 mit dem daran befestigten Untermesser 2 um eine Achse, die gegenüber der Mittelachse 9 der Tragachse 3 in einem spitzen Winkel geneigt ist. Die innere Mantelfläche jeder Trägerbuchse 8 verläuft parallel zur Mantelfläche der Tragachse 3. Die beiden Trägerbuchsen 8 jedes Untermesserpaares sitzen fest auf einer Verbindungsbuchse 10, die auf der Tragachse 8 verschiebbar angeordnet ist. Die umfängliche Position jeder Verbindungsbuchse 10 mit den darauf befestigten beiden Trägerbuchsen 8 wird mittels zweier seitlicher Arretierstifte 11 verdrehsicher festgelegt, die sich durch die beiden Buchsen 8, 10 erstrecken und in eine Axialnut der Tragachse 3 eingreifen. In axialer Richtung positioniert sich jede Verbindungsbuchse 10 mit den auf ihr befestigten Teilen selbsttätig in der Schneidposition über die Untermesser 2, die sich beim Anlegen an das ortsfeste Obermesser 1 an diesem ausrichten.Preferably so-called pot knives are used as the bottom knife, which Have the shape of a truncated cone, the circumferential edge of the truncated cone Forms cutting edge. Each lower knife 2 is on a ball bearing 7 on one Carrier bush 8 fastened freely rotatable. The outer lateral surfaces of the carrier bushes 8 have the shape of a cylindrical surface, which is against the central axis 9 of the support axis 3 is inclined. So the outer race of each ball bearing 7 rotates with it attached lower knife 2 about an axis which is relative to the central axis 9 of the Support axis 3 is inclined at an acute angle. The inner surface of everyone Carrier bush 8 runs parallel to the lateral surface of the support axis 3. The two Carrier bushes 8 of each pair of lower knives sit firmly on a connecting bush 10, which is arranged displaceably on the support axis 8. The circumferential position each connecting socket 10 with the two carrier bushings 8 fastened thereon fixed against rotation by means of two lateral locking pins 11, which are characterized by the extend two sockets 8, 10 and engage in an axial groove of the support shaft 3. In In the axial direction, each connecting socket 10 is positioned with the ones on it fastened parts automatically in the cutting position via the lower knife 2, which are Align with the stationary upper knife 1 when placing it on it.

Die Untermesser 2 sind jeweils an den Kugellagern 7 begrenzt parallel zur Mittelachse 9 beweglich gelagert. Zwischen dem Kugellager 7 und der vorderen Schulter jedes Untermessers 2 ist eine Druckfeder 12 angeordnet, von der die Schneidkante jeweils gegen das Obermesser 1 gedrückt wird. Die Schneidkanten jedes Untermessers 2 liegen somit federnd abgestützt an dem jeweiligen Obermesser 1 an. The lower knives 2 are each limited to the ball bearings 7 parallel to the central axis 9 movably mounted. Between the ball bearing 7 and the front shoulder each Lower knife 2 is a compression spring 12, of which the cutting edge in each case is pressed against the upper knife 1. The cutting edges of each lower knife 2 are thus resiliently supported on the respective upper knife 1.

Die äußeren Mantelflächen der Untermesser 2 sind so gestaltet, daß sie in der Schneidposition eine zur Bahn parallele Auflage bilden, von der die Bahn über ihre Breite beim Schneiden abgestützt wird. Wie in Figur 1 oben dargestellt, bilden die äußeren Mantellinien der Untermesser 2 an der Berührungsstelle am Obermesser 1 eine gerade Linie, die parallel zur Drehachse der Obermesser 1 und somit im rechten Winkel zu deren Seitenflächen verläuft.The outer lateral surfaces of the lower knife 2 are designed so that they in the Form a cutting position parallel to the web, from which the web over their Width is supported when cutting. As shown in Figure 1 above, the outer surface lines of the lower knife 2 at the point of contact on the upper knife 1 a straight line parallel to the axis of rotation of the upper knife 1 and thus in the right Angle to the side faces.

Damit vor Beginn des Schneidens die Obermesser 1 in ihre Schneidposition zwischen den beiden zugehörigen Untermessern 2 gebracht werden können, ist die Tragachse 3 um ca. 180° um ihre Mittelachse 9 verdrehbar gelagert. Durch eine Drehung der Tragachse 3 um ca. 180° wird der Umfangsbereich der Trägerbuchsen 8 in den Bereich der Obermesser 1 bewegt, bei dem zwei zugehörige Untermesser 2 maximalen Abstand voneinander haben. Das Obermesser 1 kann anschließend von oben in den Spalt 6 zwischen den beiden Untermessern 2 bewegt werden. Danach wird die Tragachse 3 wieder in die in Figur 1 dargestellte Schneidposition zurückgedreht und in dieser Position arretiert. Beim Zurückdrehen legen sich die Schneidkanten der Untermesser 2 selbsttätig an die Obermesser 1 an.So that the upper knife 1 in its cutting position between can be brought to the two associated lower knives 2, the support axis 3 mounted rotatable about 180 ° about its central axis 9. By rotating the Support axis 3 by about 180 °, the peripheral area of the carrier bushings 8 in the Area of the upper knife 1 moves, with the two associated lower knife 2 maximum Distance from each other. The upper knife 1 can then in from above the gap 6 between the two lower knives 2 are moved. After that the Support axis 3 rotated back into the cutting position shown in Figure 1 and in locked in this position. When turning back, the cutting edges of the Lower knife 2 automatically on the upper knife 1.

Claims (7)

  1. Longitudinal cutting device for a winding machine comprising a series of upper blades (1) embodied as disc-shaped circular blades, and a series of lower blades (2) embodied as circular blades, an upper blade (1) with a lower blade (2) forming a pair of blades performing a longitudinal cut and the plane of rotation (4) of a lower blade (2) extending at an acute angle to the plane of rotation (5) of the associated upper blade (1), characterized in that
    the lower blades (2) are mounted in a freely rotating manner on a carrying axle (3), and
    on each side of an upper blade (1) one lower blade (2) is arranged whose cutting edge can be set against the respective side surface of the upper blade (1), and
    the planes of rotation (4) of the two lower blades (2) assigned to an upper blade (1) are symmetrically inclined in relation to each other and extend in such a way that the cutting edges of the two lower blades (2) move towards and away from each other during one revolution.
  2. Longitudinal cutting device according to Claim 1, characterized in that the lower blades (2) are designed in such a way that their outer surface lines form a straight line at the point of contact with the upper blade (1) that extends at a right angle to the side surfaces of the upper blade (1).
  3. Longitudinal cutting device according to Claim 1 or 2, characterized in that the two lower blades (2) assigned to an upper blade (1) are each pressed by spring pressure against one side of the upper blade (1).
  4. Longitudinal cutting device according to one of Claims 1 to 3, characterized in that the lower blades (2) have the form of a frustum, the circumferential edge of the frustum forming the cutting blade.
  5. Longitudinal cutting device according to one of Claims 1 to 4, characterized in that the upper blades (1) are driven.
  6. Longitudinal cutting device according to one of Claims 1 to 5, characterized in that the carrying axle (3) of the lower blades (2), which is stationary during operation, can be rotated into a position in which the maximum gap between two lower blades (2) is located in the region of the upper blades (1).
  7. Longitudinal cutting device according to one of Claims 1 to 6, characterized in that a suction device sucks out the cut-out strip from the region between two lower blades (2).
EP99904878A 1998-03-07 1999-02-12 Longitudinal cutting device for a winding machine Expired - Lifetime EP1062175B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19809954A DE19809954A1 (en) 1998-03-07 1998-03-07 Longitudinal cutting device for a winding machine
DE19809954 1998-03-07
PCT/EP1999/000928 WO1999044932A1 (en) 1998-03-07 1999-02-12 Longitudinal cutting device for a winding machine

Publications (2)

Publication Number Publication Date
EP1062175A1 EP1062175A1 (en) 2000-12-27
EP1062175B1 true EP1062175B1 (en) 2002-06-19

Family

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Application Number Title Priority Date Filing Date
EP99904878A Expired - Lifetime EP1062175B1 (en) 1998-03-07 1999-02-12 Longitudinal cutting device for a winding machine

Country Status (5)

Country Link
US (1) US6631663B1 (en)
EP (1) EP1062175B1 (en)
DE (2) DE19809954A1 (en)
ES (1) ES2180275T3 (en)
WO (1) WO1999044932A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009025133B3 (en) * 2009-06-17 2010-12-30 Heinrich Georg Gmbh Maschinenfabrik Device for separating strip strips of a longitudinally divided strip, in particular a metal strip
KR102196059B1 (en) * 2020-06-05 2020-12-29 이석현 Cutting apparatus strip for diagnostic kit

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Also Published As

Publication number Publication date
DE59901798D1 (en) 2002-07-25
DE19809954A1 (en) 1999-09-09
EP1062175A1 (en) 2000-12-27
US6631663B1 (en) 2003-10-14
ES2180275T3 (en) 2003-02-01
WO1999044932A1 (en) 1999-09-10

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