EP0618163B1 - Web cutting and attaching device in winders - Google Patents

Web cutting and attaching device in winders Download PDF

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Publication number
EP0618163B1
EP0618163B1 EP94104858A EP94104858A EP0618163B1 EP 0618163 B1 EP0618163 B1 EP 0618163B1 EP 94104858 A EP94104858 A EP 94104858A EP 94104858 A EP94104858 A EP 94104858A EP 0618163 B1 EP0618163 B1 EP 0618163B1
Authority
EP
European Patent Office
Prior art keywords
material web
cutting
core
web
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
EP94104858A
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German (de)
French (fr)
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EP0618163A3 (en
EP0618163A2 (en
Inventor
Volker Prix
Manfred Irsigler
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Emtec Magnetics GmbH
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Emtec Magnetics GmbH
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Publication date
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Publication of EP0618163A2 publication Critical patent/EP0618163A2/en
Publication of EP0618163A3 publication Critical patent/EP0618163A3/en
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Publication of EP0618163B1 publication Critical patent/EP0618163B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/28—Attaching the leading end of the web to the replacement web-roll core or spindle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/26—Cutting-off the web running to the wound web roll
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/417—Handling or changing web rolls
    • B65H2301/4187—Relative movement of core or web roll in respect of mandrel
    • B65H2301/4189—Cutting
    • B65H2301/41894—Cutting knife moving on circular or acuate path, e.g. pivoting around winding roller
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/18—Form of handled article or web
    • B65H2701/184—Wound packages
    • B65H2701/1846—Parts concerned

Definitions

  • the invention relates to a device for separating and again Creation of an incoming material web on winding machines on a winding tube, which is driven by a rotating shaft is, the incoming material web by means of a deflection roller partially wrapped by the material web is pressed against the winding tube and the running material web after leaving the winding tube by means of a the path of the material web movable and through an energy store drivable forth extending to the course of the path Cutting knife and the new path start with a firmly connected with the cutting knife across the web extending brush is applied, the separating knife accelerated compared to the running material web becomes that its speed is greater than the running speed the material web.
  • the cutting knife is opened held on both sides by guide bands, which over rotatable pulleys run and being an electric motor over an axis drives a flywheel, which is flanged over a Coupling the associated roles in accelerated Offset and the guide belts Cutting knife on the cutting point in accelerated motion feeds.
  • a corresponding device is described in DE-OS 22 32 338, the separating element with a pneumatic or hydraulic drive via a rack and a toothed segment is driven, the running path between empty Separates the winding tube and a deflecting element, the separating element is pivoted coaxially to the winding tube and then an air box connected to the separating element presses the beginning of the web against the winding tube.
  • the Cut separators on the winding tube and special Require winding cores with cutting grooves on the core Here however occur through the cutting process over time Core damage along with the grooves in the core Cause deformations in the material web in the winding.
  • the invention was based on the object of a device to create the generic type mentioned above, which Reliable cutting even at high web speeds a running material web and a crease-free application of the new start of the path on the winding tube and in particular also for driving the cutting knife and the brushes required aggregates compared to the above State of the art as wear-free as possible with a minimum of moving parts and light weight of these parts work.
  • the device according to the invention is based on the example of a so-called Wendewicklers explained in more detail, the invention however, in no way limited to this special winding device is, but to all possible from the state of the Technology known winding and separating devices applicable is.
  • Figure 1 shows the separation and application device at the moment of the separation process.
  • a preferably coated web (1) runs over a deflection roller (2), a so-called outer one Contact roller (3) on the winding tube (4) and wraps around about a quarter of their size.
  • After leaving the web is the winding tube over further deflection rollers (5, 6, 7) wound on a further winding tube (8).
  • the entire device is rotatable in the direction of the arrow with the Pivot point (11).
  • the cylinder (22) can be pivoted in via a lever (23) Separating and applying device (9) to be described in more detail.
  • the desired diameter is on the winding tube (8) of the winding (24) is reached, the separation and application device (9) swung in, the material web (1), as is further described in more detail below, approximately at the Where she leaves the still empty winding tube (4), across separated and by means of a firmly connected to the cutting knife Applying brush to the winding tube (4) so that the newly created beginning of the web wound on this winding tube becomes.
  • the remaining web is wound on the winding tube (8), this winding tube is braked, the full one The winding is removed and a new one is placed on the winding axis Empty winding sleeve (not shown) placed.
  • the separation and application device (9) again pivoted so that it is in the position as indicated in Figure 2 remains.
  • the inner contact roller (10) is pivoted about the pivot point (21), that they are indicated as the inner contact roller as in Figure 2 lies against the circumference of the winding tube (4) and so smooth winding of the web favors.
  • the knife (12) for cross cutting the web is rotatable Shaft (16) firmly connected.
  • the length of the knife is slightly larger than the width of the material web (1).
  • the shaft is over lever (15) with the knife (12) connected via a fastening device (26), the knife at a certain angle to the material web (1) is aligned. This angle is preferably approximately 90 °.
  • the contact brush (13) which has a slightly larger radius than the knife (12) describes.
  • the shaft (16) with the knife (12) rotates in the direction of the arrow in the same direction as the direction of web travel; is the peripheral speed of the knife (12) greater than the web speed of the material web (1), they is at least 1.5 times. This overtakes the separating and Application device during the rotation of the shaft the material web, so that the contact brush the material web on the Can touch the surface of the winding tube (4).
  • Like the figure 4 shows the ratio of the radii of knife (12) and brush (13) and their respective distance from the winding tube (4) dimensioned so that the free end of the knife is straight is still spaced from the surface of the winding tube (4) and the free end of the contact brush the new one Start of web at an angle between 40 ° and 90 ° at the Specifies the winding tube.
  • the brush is lying in the moment of cross cutting on the material web at about the point where it leaves the winding tube.
  • the surface of the winding tube cannot be closer by means of a shown spray device (27) with glue or water can be applied to make it easier to glue the web.
  • the winding tube (4) to be made from a plastic material with adhesive adhesion.
  • the shaft (16) with the knife (12) is through a hydraulic torque booster (17) with which it is directly connected.
  • Motor and shaft are direct, So without coupling links, connected to each other, for example by pressing appropriately shaped conical Parts of motor shaft and shaft (16) or by others Measures known from the prior art.
  • the wave (16) is mounted on both sides (28, 29).
  • the hydraulic motor operates at an operating pressure of around 160 bar operated, the hydraulic motor is controlled by an electric stepper motor (corresponds to 1000 steps 360 °). Manufacturers of such engines are, for example SIG (Swiss Industry Company).
  • the whole The arrangement of the motor shaft knife is designed to be low-mass, among other things by using light metal for shaft and Lever that the cutting knife, as shown in Figure 5, for Reaching the full speed only by an angle of is rotated about 130 °, then this speed becomes about maintained for a rotation angle of 130 °, while during the separation process takes place at this time, and then the knife speed again over an angle of about 90 ° decelerated to zero.
  • the separating device (9) is pivoted and during this time the swivel arm will slowly return to its original position, for example by a fork light barrier is marked, turned back so that the separating and Application device prepared for the next separation process is.
  • Knife (12) To compensate for the enormous acceleration forces caused by the Knife sits on the shaft (16) also via the levers (15) connected a balance shaft (18) opposite the Knife (12).
  • This shaft (18) serves as a counterweight to Knife (12) and can by intermediate washers (19) arranged adjacent a connecting arm to the shaft (18) are balanced so that during the rotation of the Knife the shaft (16) is not deformed and thus that Knife (12) a linear section through the material web accomplished.

Landscapes

  • Replacement Of Web Rolls (AREA)

Description

Die Erfindung betrifft eine Vorrichtung zum Trennen und erneutem Anlegen einer zulaufenden Materialbahn an Wickelmaschinen auf eine Wickelhülse, die über eine Welle drehend angetrieben wird, wobei die zulaufende Materialbahn mittels einer von der Materialbahn teilweise umschlungenen Umlenkrolle an die Wickelhülse gedrückt wird und wobei die ablaufende Materialbahn nach Verlassen der Wickelhülse mittels eines in den Weg der Materialbahn bewegbaren und durch einen Kraftspeicher antreibbaren her zum Bahnverlauf sich erstreckenden Trennmessers getrennt und der neue Bahnanfang mittels einer mit dem Trennmesser fest verbundenen quer zur Warenbahn sich erstreckenden Anlegebürste angelegt wird, wobei das Trennmesser gegenüber der laufenden Materialbahn so beschleunigt wird, daß seine Geschwindigkeit größer ist als die Laufgeschwindigkeit der Materialbahn.The invention relates to a device for separating and again Creation of an incoming material web on winding machines on a winding tube, which is driven by a rotating shaft is, the incoming material web by means of a deflection roller partially wrapped by the material web is pressed against the winding tube and the running material web after leaving the winding tube by means of a the path of the material web movable and through an energy store drivable forth extending to the course of the path Cutting knife and the new path start with a firmly connected with the cutting knife across the web extending brush is applied, the separating knife accelerated compared to the running material web becomes that its speed is greater than the running speed the material web.

Beim Aufwickeln von Materialbahnen insbesondere durch eine Mehrfach-Wickelmaschine, beispielsweise einen sogenannten Wendewickler, kommt es darauf an, die Bahn zur Vermeidung von Abfall von der fertig gewickelten Rolle möglichst schnell auf eine leere Wickelhülse umzulegen. Nach dem Quertrennen der Materialbahn soll der neue Bahnanfang faltenfrei auf die leere Wickelhülse angelegt werden. Querschneide- und Anlegevorrichtungen dieser Art sind aus dem Stand der Technik bekannt. Eine Vorrichtung der eingangs genannten gattungsmäßigen Art ist in der DE-OS 41 07 127 der gleichen Anmelderin beschrieben. Bei dieser Vorrichtung wird das Trennmesser auf beiden Seiten durch Führungsbänder gehalten, welche über drehbare Umlenkrollen laufen und wobei ein Elektromotor über eine Achse eine Schwungmasse antreibt, die über eine angeflanschte Kupplung die mit ihr verbundenen Rollen in beschleunigte Drehung versetzt und über die Führungsbänder das Trennmesser auf die Trennstelle in beschleunigter Bewegung zuführt.When winding material webs in particular by a Multiple winding machine, for example a so-called Turret winder, it is important to avoid the web Waste from the finished wound roll as quickly as possible to fold an empty winding tube. After cross cutting the The new start of the web should be wrinkle-free on the material web empty winding tube are created. Cross cutting and feeding devices of this type are known from the prior art. A device of the generic type mentioned Art is in DE-OS 41 07 127 the same applicant described. With this device the cutting knife is opened held on both sides by guide bands, which over rotatable pulleys run and being an electric motor over an axis drives a flywheel, which is flanged over a Coupling the associated roles in accelerated Offset and the guide belts Cutting knife on the cutting point in accelerated motion feeds.

Andere Querschneide- und Anlegevorrichtungen arbeiten mit einem ortsfest gelagerten glatten oder verzahnten Schwenkmesser, welches in die zu trennende Bahn schlägt und elektrisch oder pneumatisch angetrieben wird. Nach der Lehre der DE-OS 24 18 409 wird bei der ablaufenden Bahn mittels eines Schwenkrahmens eine Umlenkrolle so gegen die Bahn zwischen der leeren Wickelhülse und der vollen Rolle gedrückt, daß die Bahn die leere Wickelhülse mehr als den halben Umfang umschlingt, worauf durch ein auf der Achse der Umlenkrolle schwenkbar gelagertes verzahntes Trennmesser, welches durch eine Drehstabfeder angetrieben wird die Materialbahn getrennt wird und wobei das Trennmesser auf der von der Umlenkrolle abgewandten Seite eine Bürste trägt, die bei der Schwenkbewegung des Trennmessers die Bahn an die leere Wickelhülse anstreicht.Other cross cutters and feeders work with a stationary, smooth or toothed swivel knife, which strikes in the web to be separated and electrically or pneumatically driven. According to the teaching of DE-OS 24 18 409 is in the running web by means of a Swivel frame a pulley so against the web between the empty winding tube and the full roll pressed that the Web wraps the empty winding tube more than half the circumference, whereupon by on the axis of the pulley pivoted toothed cutting knife, which by the material web is separated by a torsion bar spring and with the cutting knife on the of the pulley opposite side carries a brush that pivots the cutting knife the web to the empty winding tube paints.

In der DE-OS 22 32 338 ist eine entsprechende Vorrichtung beschrieben, wobei das Trennelement mit einem pneumatischen oder hydraulischen Antrieb über eine Zahnstange und ein Zahnsegment angetrieben wird, die ablaufende Bahn zwischen leerer Wickelhülse und einem Umlenkelement trennt, wobei das Trennelement koaxial zur Wickelhülse geschwenkt wird und wobei anschließend ein mit dem Trennelement verbundener Luftkasten den Bahnanfang an die Wickelhülse anpreßt. Weiterhin sind aus dem Stand der Technik Anlegesysteme bekannt, bei denen die Trennvorrichtungen auf der Wickelhülse schneiden und spezielle Wickelhülsen mit Schneidnuten am Kern erfordern. Dabei treten jedoch durch den Schneidvorgang im Laufe der Zeit Kernbeschädigungen auf, die zusammen mit den Nuten im Kern Deformationen in der Materialbahn im Wickel verursachen.A corresponding device is described in DE-OS 22 32 338, the separating element with a pneumatic or hydraulic drive via a rack and a toothed segment is driven, the running path between empty Separates the winding tube and a deflecting element, the separating element is pivoted coaxially to the winding tube and then an air box connected to the separating element presses the beginning of the web against the winding tube. Furthermore are off known prior art application systems in which the Cut separators on the winding tube and special Require winding cores with cutting grooves on the core. Here however occur through the cutting process over time Core damage along with the grooves in the core Cause deformations in the material web in the winding.

Der Erfindung lag die Aufgabe zugrunde, eine Vorrichtung der eingangs genannten gattungsmäßigen Art zu schaffen, welche auch bei hohen Bahngeschwindigkeiten ein Zuverlässiges Durchtrennen einer laufenden Materialbahn und ein faltenfreies Anlegen des neuen Bahnanfangs an der Wickelhülse ermöglicht und wobei auch insbesondere die zum Antrieb des Trennmessers und der Anlegebürste benötigten Aggregate gegenüber dem vorbeschriebenen Stand der Technik möglichst verschleißfrei sowie mit einem Minimum an bewegten Teilen und mit geringem Gewicht dieser Teile arbeiten.The invention was based on the object of a device to create the generic type mentioned above, which Reliable cutting even at high web speeds a running material web and a crease-free application of the new start of the path on the winding tube and in particular also for driving the cutting knife and the brushes required aggregates compared to the above State of the art as wear-free as possible with a minimum of moving parts and light weight of these parts work.

Erfindungsgemäß wurde die Aufgabe gelöst mit einer Vorrichtung mit den im kennzeichnenden Teil des Anspruchs 1 genannten Merkmalen. Weitere Einzelheiten der Erfindung gehen aus den Unteransprüchen, den Zeichnungen sowie der Beschreibung hervor.According to the invention, the object was achieved with a device with those mentioned in the characterizing part of claim 1 Characteristics. Further details of the invention go out the dependent claims, the drawings and the description forth.

Nachfolgend wird die Erfindung anhand der Zeichnungen näher erläutert und zwar zeigt

Figur 1
die Schemazeichnung eines Wendewicklers mit der erfindungsgemäßen Trenn- und Anlegevorrichtung im Moment des Trennvorgangs
Figur 2
ein entsprechendes Schema während des Aufwickelns der Warenbahn auf der Wickelhülse nach dem Trennvorgang
Figur 3
einen axialen Schnitt durch die Trennvorrichtung
Figur 4
einen radialen Schnitt durch die Trennvorrichtung gemäß Figur 3
Figur 5
den zeitlichen beziehungsweise Winkelverlauf der Drehgeschwindigkeit des Antriebsmotors.
The invention is explained in more detail below with reference to the drawings and shows
Figure 1
the schematic drawing of a turret winder with the separation and application device according to the invention at the moment of the separation process
Figure 2
a corresponding scheme during the winding of the web on the winding tube after the separation process
Figure 3
an axial section through the separating device
Figure 4
3 shows a radial section through the separating device according to FIG. 3
Figure 5
the temporal or angular course of the rotational speed of the drive motor.

Die erfindungsgemäße Vorrichtung wird am Beispiel eines sogenannten Wendewicklers näher erläutert, wobei die Erfindung jedoch keineswegs auf diese spezielle Wickelvorrichtung beschränkt ist, sondern auf alle möglichen aus dem Stand der Technik bekannten Wickel- und Trennvorrichtungen anwendbar ist.The device according to the invention is based on the example of a so-called Wendewicklers explained in more detail, the invention however, in no way limited to this special winding device is, but to all possible from the state of the Technology known winding and separating devices applicable is.

Die Figur 1 zeigt die Trenn- und Anlegevorrichtung im Moment des Trennvorgangs. Eine vorzugsweise beschichtete Warenbahn (1) läuft über eine Umlenkrolle (2), eine sogenannte äußere Kontaktwalze (3) auf die Wickelhülse (4) auf und umschlingt diese mit etwa einem Viertel ihres Umfangs. Nach Verlassen der Wickelhülse wird die Warenbahn über weitere Umlenkwalzen (5, 6, 7) auf einer weiteren Wickelhülse (8) aufgewickelt. Die gesamte Vorrichtung ist in Pfeilrichtung drehbar mit dem Drehpunkt (11). In die beschriebene Vorrichtung mittels eines Zylinders (22) über einen Hebel (23) einschwenkbar ist die noch näher zu beschreibende Trenn- und Anlegevorrichtung (9). Ist nun auf der Wickelhülse (8) der gewünschte Durchmesser des Wickels (24) erreicht, so wird die Trenn- und Anlegevorrichtung (9) eingeschwenkt, die Warenbahn (1) wird, wie weiter unten noch im Detail näher beschrieben, ungefähr an der Stelle, wo sie die noch leere Wickelhülse (4) verläßt, quer getrennt und mittels einer mit dem Trennmesser fest verbundenen Anlegebürste an die Wickelhülse (4) angelegt, so daß der neu entstandene Bahnanfang auf dieser Wickelhülse aufgewickelt wird. Die Restbahn wird auf der Wickelhülse (8) aufgewickelt, diese Wickelhülse wird abgebremst, der volle Wickel abgenommen und auf die Wickelachse wird eine neue (nicht gezeichnete) leere Wickelhülse aufgesetzt.Figure 1 shows the separation and application device at the moment of the separation process. A preferably coated web (1) runs over a deflection roller (2), a so-called outer one Contact roller (3) on the winding tube (4) and wraps around about a quarter of their size. After leaving the web is the winding tube over further deflection rollers (5, 6, 7) wound on a further winding tube (8). The entire device is rotatable in the direction of the arrow with the Pivot point (11). In the described device by means of a The cylinder (22) can be pivoted in via a lever (23) Separating and applying device (9) to be described in more detail. Now the desired diameter is on the winding tube (8) of the winding (24) is reached, the separation and application device (9) swung in, the material web (1), as is further described in more detail below, approximately at the Where she leaves the still empty winding tube (4), across separated and by means of a firmly connected to the cutting knife Applying brush to the winding tube (4) so that the newly created beginning of the web wound on this winding tube becomes. The remaining web is wound on the winding tube (8), this winding tube is braked, the full one The winding is removed and a new one is placed on the winding axis Empty winding sleeve (not shown) placed.

Unmittelbar nach dem Trennvorgang wird die Trenn- und Anlegevorrichtung (9) wieder abgeschwenkt, so daß sie in der Stellung wie in Figur 2 angegeben verbleibt. Gleichzeitig wird die innere Kontaktwalze (10) um den Drehpunkt (21) so geschwenkt, daß sie als innere Kontaktwalze wie in Figur 2 angegeben am Umfang der Wickelhülse (4) anliegt und so ein glattes Aufwickeln der Warenbahn begünstigt.Immediately after the separation process, the separation and application device (9) again pivoted so that it is in the position as indicated in Figure 2 remains. At the same time the inner contact roller (10) is pivoted about the pivot point (21), that they are indicated as the inner contact roller as in Figure 2 lies against the circumference of the winding tube (4) and so smooth winding of the web favors.

Wenn wie oben beschrieben an der Position (8) eine neue leere Wickelhülse aufgesteckt ist und wenn anschließend an der Wickelhülse (4) fast der volle Wickelumfang erreicht ist, so wird die an der Wickelhülse (4) anliegende äußere Kontaktwalze (3) samt Umlenkwalze (2) mittels des Schiebezylinders (25) abgeschwenkt und der Wendewickler dreht sich um 180° um die Drehachse (11), wobei die Kernhülse (4) die Materialbahn (1) mitzieht, die innere Kontaktwalze (10) liegt während des Schwenkvorgangs an der Wickelhülse (4) weiter an, bis nach Vollendung der 180°-Drehung die vorbereitete leere Wickelhülse in der Position der ursprünglichen Wickelhülse (4) angelangt ist und diese, während der Aufwickelvorgang weiter fortgeführt wird, jetzt in der Position wie die Wickelhülse (8) mit dem Wickel (24) angekommen ist. Nach Ende des Wendevorgangs wird die äußere Kontaktwalze (3) wieder angeschwenkt.If, as described above, a new empty one at position (8) Winding sleeve is plugged in and when subsequently on the Winding sleeve (4) almost the full winding circumference is reached, see above becomes the outer contact roller resting on the winding tube (4) (3) together with the deflection roller (2) by means of the sliding cylinder (25) pivoted and the turret winder rotates 180 ° around the Axis of rotation (11), the core sleeve (4) the material web (1) pulls, the inner contact roller (10) lies during the Swivel process on the winding tube (4) continues until after Completed the 180 ° turn the prepared empty winding tube arrived in the position of the original winding tube (4) and this continues during the winding process is continued, now in the position as the winding tube (8) has arrived with the winding (24). At the end of the turning process the outer contact roller (3) is pivoted again.

Anschließend beginnt, wenn der Wickel seine volle Größe in der Position (8) erreicht hat, ein erneuter Trennvorgang, in dem erst die innere Kontaktwalze (10) abgeschwenkt und dann die Trenn- und Anlegevorrichtung (9) samt der Umlenkwalze (5) in den Bahnverlauf eingeschwenkt wird. It then begins when the wrap is in its full size the position (8) has reached a new separation process, in which first pivoted the inner contact roller (10) and then the separating and applying device (9) together with the deflecting roller (5) is swung into the course of the path.

Anhand der Figuren 3 und 4 werden nun die erfindungswesentlichen Merkmale der Trenn- und Anlegevorrichtung (9) erläutert. Das Messer (12) zum Quertrennen der Bahn ist mit einer drehbaren Welle (16) fest verbunden. Die Länge des Messers ist etwas größer als die Breite der Materialbahn (1). Wie die Abbildungen zeigen, ist die Welle über Hebel (15) mit dem Messer (12) über eine Befestigungseinrichtung (26) verbunden, wobei das Messer in einem bestimmten Winkel zur Materialbahn (1) ausgerichtet ist. Vorzugsweise beträgt dieser Winkel etwa 90°. An der Befestigungseinrichtung befindet sich außerdem die Anlegebürste (13), welche einen etwas größeren Radius als das Messer (12) beschreibt. Die Welle (16) mit dem Messer (12) rotiert in Pfeilrichtung gleichsinnig mit der Bahnlaufrichtung; die Umfangsgeschwindigkeit des Messers (12) ist größer als die Bahngeschwindigkeit der Materialbahn (1), sie beträgt mindestens das 1,5-fache. Dadurch überholt die Trenn- und Anlegevorrichtung bei der Rotation der Welle die Materialbahn, so daß die Anlegebürste die Materialbahn an der Oberfläche der Wickelhülse (4) anstreifen kann. Wie die Figur 4 zeigt, ist dabei das Verhältnis der Radien von Messer (12) und Bürste (13) und ihr jeweiliger Abstand von der Wickelhülse (4) so bemessen, daß das freie Ende des Messers gerade noch von der Oberfläche der Wickelhülse (4) beabstandet ist und das freie Ende der Anlegebürste den neu entstandenen Bahnanfang auf einem Winkel zwischen 40° und 90° an der Wickelhülse festlegt. Dabei liegt die Anlegebürste im Moment des Quertrennens an der Materialbahn etwa an der Stelle an, wo sie die Wickelhülse verläßt.The essentials of the invention will now be described with reference to FIGS. 3 and 4 Features of the separating and applying device (9) explained. The knife (12) for cross cutting the web is rotatable Shaft (16) firmly connected. The length of the knife is slightly larger than the width of the material web (1). Like the pictures show, the shaft is over lever (15) with the knife (12) connected via a fastening device (26), the knife at a certain angle to the material web (1) is aligned. This angle is preferably approximately 90 °. Also located on the fastener the contact brush (13), which has a slightly larger radius than the knife (12) describes. The shaft (16) with the knife (12) rotates in the direction of the arrow in the same direction as the direction of web travel; is the peripheral speed of the knife (12) greater than the web speed of the material web (1), they is at least 1.5 times. This overtakes the separating and Application device during the rotation of the shaft the material web, so that the contact brush the material web on the Can touch the surface of the winding tube (4). Like the figure 4 shows the ratio of the radii of knife (12) and brush (13) and their respective distance from the winding tube (4) dimensioned so that the free end of the knife is straight is still spaced from the surface of the winding tube (4) and the free end of the contact brush the new one Start of web at an angle between 40 ° and 90 ° at the Specifies the winding tube. The brush is lying in the moment of cross cutting on the material web at about the point where it leaves the winding tube.

Die Oberfläche der Wickelhülse kann mittels einer nicht näher dargestellten Sprühvorrichtung (27) mit Kleber oder Wasser zum leichteren Ankleben der Bahn beaufschlagt werden. Ebenso ist es auch möglich, wie beispielsweise in der parallelen Anmeldung DE-GM 9305304.5 der Anmelderin beschrieben, die Wickelhülse (4) aus einem Kunststoffmaterial mit Klebehaftung herzustellen. Die Welle (16) mit dem Messer (12) wird durch einen hydraulischen Drehmomentverstärker (17), mit dem sie direkt verbunden ist, angetrieben. Motor und Welle sind direkt, also ohne Kupplungsglieder, miteinander verbunden, beispielsweise durch Zusammenpressen entsprechend geformter konischer Teile von Motorwelle und Welle (16) oder durch andere aus dem Stand der Technik bekannte Maßnahmen. Die Welle (16) ist beiderseits (28, 29) gelagert.The surface of the winding tube cannot be closer by means of a shown spray device (27) with glue or water can be applied to make it easier to glue the web. As well it is also possible, for example in parallel registration DE-GM 9305304.5 described by the applicant, the winding tube (4) to be made from a plastic material with adhesive adhesion. The shaft (16) with the knife (12) is through a hydraulic torque booster (17) with which it is directly connected. Motor and shaft are direct, So without coupling links, connected to each other, for example by pressing appropriately shaped conical Parts of motor shaft and shaft (16) or by others Measures known from the prior art. The wave (16) is mounted on both sides (28, 29).

Der Hydraulikmotor wird mit einem Betriebsdruck von etwa 160 bar betrieben, gesteuert wird der Hydraulikmotor mittels eines elektrischen Schrittmotors (1000 Schritte entsprechen 360°). Hersteller derartiger Motoren sind beispielsweise die Firma SIG (Schweizer Industrie Gesellschaft). Die gesamte Anordnung Motor-Welle-Messer ist derart massearm gestaltet, unter anderem durch Verwenden von Leichtmetall für Welle und Hebel, daß das Trennmesser, wie aus Figur 5 hervorgeht, zur Erreichung der vollen Drehzahl lediglich um einen Winkel von etwa 130° gedreht wird, dann wird diese Geschwindigkeit etwa für einen Drehwinkel von 130° aufrechterhalten, wobei während dieser Zeit der Trennvorgang erfolgt, und anschließend wird über einen Winkel von etwa 90° die Messergeschwindigkeit wieder auf Null abgebremst.The hydraulic motor operates at an operating pressure of around 160 bar operated, the hydraulic motor is controlled by an electric stepper motor (corresponds to 1000 steps 360 °). Manufacturers of such engines are, for example SIG (Swiss Industry Company). The whole The arrangement of the motor shaft knife is designed to be low-mass, among other things by using light metal for shaft and Lever that the cutting knife, as shown in Figure 5, for Reaching the full speed only by an angle of is rotated about 130 °, then this speed becomes about maintained for a rotation angle of 130 °, while during the separation process takes place at this time, and then the knife speed again over an angle of about 90 ° decelerated to zero.

Anschließend wird die Trennvorrichtung (9) abgeschwenkt und während dieser Zeit wird der Dreharm langsam auf seine Ursprungsstellung, die beispielsweise durch eine Gabel-Lichtschranke markiert ist, zurückgedreht, so daß die Trenn- und Anlegevorrichtung für den nächsten Trennvorgang vorbereitet ist.Then the separating device (9) is pivoted and during this time the swivel arm will slowly return to its original position, for example by a fork light barrier is marked, turned back so that the separating and Application device prepared for the next separation process is.

Zum Ausgleich der enormen Beschleunigungskräfte durch das Messer sitzt an der Welle (16) ebenfalls über die Hebel (15) verbunden eine Ausgleichswelle (18) gegenüberliegend dem Messer (12). Diese Welle (18) dient als Gegengewicht zum Messer (12) und kann durch Zwischenlegescheiben (19), die benachbart einem Verbindungsarm zur Welle (18) angeordnet sind so ausgewuchtet werden, daß während der Rotation des Messers die Welle (16) nicht deformiert wird und somit das Messer (12) einen linearen Schnitt durch die Materialbahn vollführt.To compensate for the enormous acceleration forces caused by the Knife sits on the shaft (16) also via the levers (15) connected a balance shaft (18) opposite the Knife (12). This shaft (18) serves as a counterweight to Knife (12) and can by intermediate washers (19) arranged adjacent a connecting arm to the shaft (18) are balanced so that during the rotation of the Knife the shaft (16) is not deformed and thus that Knife (12) a linear section through the material web accomplished.

Es hat sich gezeigt, daß mit der erfindungsgemäßen Trenn- und Anlegevorrichtung selbst bei Bahngeschwindigkeiten, welche bei 800 m/min liegen, noch ein einwandfreier Schnitt und ein einwandfreies Anlegen des Bahnanfangs möglich ist. Auf diese Weise ist ein weitgehend automatisiertes Wickel-, Trenn- und Anlegeverfahren für schnellaufende Materialbahnen ermöglicht, welches eine sehr hohe Produktionssicherheit hat, keinerlei Produktionsunterbrechungen benötigt und weitgehend verschleißfrei ist.It has been shown that with the separation and Application device even at web speeds, which are at 800 m / min, still a perfect cut and a perfect creation of the beginning of the path is possible. To this Way is a largely automated winding, separating and Application procedure for high-speed material webs enables which has a very high production security, none at all Production interruptions are required and largely wear-free is.

Claims (10)

  1. A device for cutting and reattaching an incoming material web (1), in winders, to a core (4), which is driven in rotation by a shaft, the incoming material web (1) being pressed onto the core (4) by means of a deflection roll (3), around which the material web wraps partially, and the outgoing material web, after leaving the core (4), being cut by means of a cutting knife (12), which can be moved into the path of the material web, can be driven by a force store (17) and extends transversely with respect to the course of the web, and, following the cutting of the material web (1), the new web start being attached, by an attaching brush (13), which is fixedly connected to the cutting knife (12) and extends transversely with respect to the material web (1), the cutting knife (12), which is connected to a shaft (16), being accelerated with respect to the running material web (1) in such a manner that the speed of the knife (12) is greater than the running speed of the material web (1), wherein the shaft (16), which is acted on by a hydraulic motor (17), can be driven in rotation in the web running direction, and wherein the radius of the cutting knife (12) and that of the attaching brush (13) are dimensioned such that the attaching brush (13) attaches the new web start to the circumference of the core (4) over an angle between 40° and 90°, while the cutting knife (12) just does not touch the core (4), and wherein, for the cutting operation, the shaft (16) with the cutting knife (12) is accelerated to a circumferential speed of at least 1.5 times the running speed of the material web (1).
  2. A method of cutting a material web (1), having a device (9) as claimed in claim 1, wherein the hydraulic motor (17), via an intermittent-motion controller, accelerates the shaft (16) with the cutting knife (12) to the circumferential speed of at least 1.5 times the running speed of the material web (1) over about a 130° angle of rotation of the shaft (16) with the cutting knife (12), wherein the position in which the cutting operation is effected is reached in the range between an angle of rotation of about 130° and 260°, and then the rotation is braked and brought to a standstill at about 350° angle of rotation, and the hydraulic motor (17) is subsequently brought into its initial position.
  3. A device as claimed in claim 1, wherein the angle between knife and film at the instant of cutting is about 90°.
  4. A device as claimed in claim 1, wherein, before the cut, the material web wraps around the core to about one quarter of its circumference.
  5. A device as claimed in claim 1, wherein at the instant of the transverse cutting of the material web the attaching brush rests on the core.
  6. A device as claimed in claim 1, wherein the cutting and attaching device (9) can be pivoted into the path of the material web (1) immediately before the cutting operation and can be pivoted out once more immediately thereafter.
  7. A device as claimed in claim 1, wherein, at least during the winding of one roll of tape, a pressure roller (10, 10') that can be pivoted away rests on each core (4, 8).
  8. A device as claimed in claim 1, wherein the surface of the core has contact-adhesive properties, so that after the cutting operation the material web adheres to the core.
  9. A device as claimed in claim 1, wherein immediately before the cutting operation the surface of the core is sprayed with an adhesive or with water (27).
  10. A device as claimed in claim 1, wherein a compensating shaft (18) of adjustable (19) mass is arranged with respect to the drive shaft (16) so as to lie opposite the cutting knife (12).
EP94104858A 1993-04-02 1994-03-28 Web cutting and attaching device in winders Expired - Lifetime EP0618163B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4310900A DE4310900A1 (en) 1993-04-02 1993-04-02 Cutting and application device for material webs on winding machines
DE4310900 1993-04-02

Publications (3)

Publication Number Publication Date
EP0618163A2 EP0618163A2 (en) 1994-10-05
EP0618163A3 EP0618163A3 (en) 1995-01-25
EP0618163B1 true EP0618163B1 (en) 1998-06-10

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ID=6484617

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Application Number Title Priority Date Filing Date
EP94104858A Expired - Lifetime EP0618163B1 (en) 1993-04-02 1994-03-28 Web cutting and attaching device in winders

Country Status (5)

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US (1) US5520352A (en)
EP (1) EP0618163B1 (en)
JP (1) JPH072393A (en)
KR (1) KR100310513B1 (en)
DE (2) DE4310900A1 (en)

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DE19615526A1 (en) * 1996-04-19 1997-11-27 Voith Sulzer Papiermasch Gmbh Tee knife to cut a running web
US5909856A (en) * 1997-03-05 1999-06-08 Myer; William R. Duplex slitter/rewinder with automatic splicing and surface/center winding
CA2303119A1 (en) * 1997-07-15 1999-01-28 Kaiser Aluminum & Chemical Corporation High speed transfer of strip in a continuous strip processing application
US6003421A (en) * 1997-08-15 1999-12-21 Milich; Bruce Apparatus and method for cutting elongated webs of material
DE19801874A1 (en) * 1998-01-20 1999-07-22 Voith Sulzer Papiertech Patent Method and device for winding partial webs into partial web rolls
DE19914524A1 (en) * 1999-03-30 2000-10-05 Voith Sulzer Papiertech Patent Apparatus for cutting a moving continuous sheet of material into lengths comprises a blade carrier and/or at least one actuator element made at least partially of a composite material
KR20020034645A (en) * 2000-11-02 2002-05-09 정진구 Cutter grill
US8201768B2 (en) * 2006-10-09 2012-06-19 Windmoeller & Hoelscher Kg Pivotable positioning roller in the reversing winder
ES2540377B1 (en) * 2013-12-05 2016-04-21 Tkt Brainpower Engineering, S.L. Cutting device for flexible material

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Also Published As

Publication number Publication date
DE4310900A1 (en) 1994-10-06
US5520352A (en) 1996-05-28
KR100310513B1 (en) 2001-12-28
JPH072393A (en) 1995-01-06
DE59406164D1 (en) 1998-07-16
EP0618163A3 (en) 1995-01-25
EP0618163A2 (en) 1994-10-05

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