EP1457272B1 - Device for changing rolls on calenders - Google Patents

Device for changing rolls on calenders Download PDF

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Publication number
EP1457272B1
EP1457272B1 EP04001048A EP04001048A EP1457272B1 EP 1457272 B1 EP1457272 B1 EP 1457272B1 EP 04001048 A EP04001048 A EP 04001048A EP 04001048 A EP04001048 A EP 04001048A EP 1457272 B1 EP1457272 B1 EP 1457272B1
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EP
European Patent Office
Prior art keywords
roll
rolls
carrier
roll carrier
roller
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
EP04001048A
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German (de)
French (fr)
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EP1457272A2 (en
EP1457272A3 (en
Inventor
Werner Wedekind
Jeanette Militzer
Torsten Raasch
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Harburg Freudenberger Maschinenbau GmbH
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Harburg Freudenberger Maschinenbau GmbH
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Publication of EP1457272A2 publication Critical patent/EP1457272A2/en
Publication of EP1457272A3 publication Critical patent/EP1457272A3/en
Application granted granted Critical
Publication of EP1457272B1 publication Critical patent/EP1457272B1/en
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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • D21G1/02—Rolls; Their bearings
    • D21G1/0293—Provisions or constructions to facilitate the removal of the rolls
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/08—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts

Definitions

  • Apparatus for changing rollers on calenders for producing profiled sheets intended for the construction of tires comprising at least one roll support, which is rotatably supported by at least one calender stand and which is designed for the at least temporary simultaneous holding of at least two rolls and in which a frame base of the calender stand supports a mating roll with a smooth surface and the rolls are provided with a profiled surface for producing the profile of the profiled sheet.
  • the material to be processed is conveyed between two rolls, of which the lower roll has a smooth surface and the upper roll has a profiled surface.
  • the profile of the upper roller determines the profile of the product produced.
  • the upper roller consists of a roller core and an exchangeable roll shell.
  • a calender in which in the region of a lower part a counter roll and in the region of a rotatably mounted upper part an arrangement of two, three or four rolls is arranged.
  • a calender is described according to the preamble of claim 1 for the production of tread strips for tire manufacturing, in which above a counter-roller a turret-like arrangement with four profile rollers is positioned.
  • the four profile rollers are rotatable by one positioned whale carrier positioned.
  • the active profile roll used in each case is positioned immediately above the mating roll in order to produce the respectively required profile webs.
  • Object of the present invention is therefore to construct a device of the aforementioned type such that the production of a large number of different products supported and implementation of the change process is possible with little expenditure of time.
  • rollers are arranged interchangeably on the roller carrier and that the roller carrier for each of the rollers has at least one guide, in which the rollers with a roller bearing relative to a rotational axis of the roller carrier in the radial direction can be used and removed.
  • rollers on the roller carrier it is possible to provide an arbitrarily large number of different rollers, each associated with a particular product.
  • the replacement of the active production roller against the planned for the implementation of the next production step roller can then be carried out in a very small amount of time.
  • a replacement of one of the rollers with simultaneous production use of another roller is supported by the fact that an insertion and removal of the rollers is provided in the roller carrier in the vertical direction.
  • roller carrier is mounted by means of rollers in the region of a Gestellobermaschines the calender stand.
  • the roll carrier be formed from at least one rotor disk, which has a toothing for connection to at least one drive gear wheel.
  • a typical arrangement with two rolls for material processing is provided by the fact that adjacent to the roll carrier a counter roll for the rolls is arranged.
  • the counter roll and at least one of the rolls have a longitudinal axis offset relative to each other.
  • a replacement process of the rollers is supported by the fact that the roller carrier is arranged vertically adjustable.
  • roller carrier is arranged pivotably together with the frame upper part.
  • a typical field of application is defined by the fact that the calender is designed for the production of profiled sheets.
  • the calender is designed to process elastomeric materials.
  • a preferred field of application is that the calender is designed for the production of tire treads.
  • a gap extends between the mating roll and the adjacent roll in a production positioning.
  • a typical dimensioning is that the gap has a dimension in the range of 0.2 to 10 mm.
  • a simple drive concept is provided by the fact that at least two motors are used to drive the rollers.
  • the counter-roller is coupled to a motor.
  • a simple drive concept for the replaceable rollers is provided by the fact that all of the rollers arranged in the area of the roller carrier together have exactly one motor associated therewith.
  • a further simplification of the drive system is achieved in that the motors are designed as geared motors.
  • a compound of a selectable roller in the region of the roller carrier with the associated drive is effected in that the motor is connectable via a coupling with one of the rollers.
  • a backlash-free fixation of the roller carrier in a production positioning at the same time mechanically relieved rollers is characterized in that the roller carrier of a lifting device is free of play in an associated storage einpreßbar.
  • a play-free arrangement of the roller in the region of the roller carrier in a production positioning takes place thereby, that the roller bearings can be pressed by a lifting device without play in the associated guide of the roller carrier.
  • rollers are provided with a heating device.
  • a structurally simple supply of the required heat energy can be effected in that the heating device is formed from hot water lines.
  • FIG. 1 shows a calender (1), which is provided with a calender stand (2).
  • the calender stand (2) consists of a frame base (3) and a frame top (4).
  • a roller carrier (5) is arranged, which supports the rollers (6, 7) in the illustrated embodiment (2).
  • rollers (6, 7) are arranged rotatably via roller bearings (8) in the region of the roller carrier (5).
  • a counter-roller (9) is arranged, which is rotatably mounted on roller bearings (10).
  • a motor (11) is provided for a drive of the roller (9).
  • a motor (11) can be used in particular a geared motor.
  • a motor (12) is provided, which may also be designed as a geared motor.
  • the motor (12) is connected via a coupling (13) in each case with that of the rollers (6, 7), which is arranged adjacent to the counter-roller (9).
  • the counter-roller (9) is formed with a smooth surface.
  • the rollers (6, 7) have at least partially a profiled surface or are smooth.
  • heaters (14) are used for temperature control of the rollers (6, 7) heaters (14) are used.
  • the heating devices (14) can be designed as pipelines for a hot water circuit.
  • the side view according to FIG. 2 illustrates that the Gestelloberteil (4) of two lifting devices (15) relative to the frame base (3) is positionable.
  • the lifting device (15) is designed as a hydraulic cylinder.
  • the lifting movement is performed with a simultaneous pivotal movement about a pivot bearing (16) around. This makes it possible, for example, with two lifting devices (15) for different execution of the lifting movement to specify an inclined position in the working state in order to realize a defined skew or to perform a control of a positioning of the rollers.
  • the roller carrier (6) consists of two separate rotor discs (17).
  • the rotor disks (17) are mounted in a guide track (18) of the frame upper part (4).
  • the storage is carried out using rollers (19) which are supported by the rotor disk (17) and roll along the guide track (18).
  • the rotor disk (17) has a toothing (20) in which gear wheels (21) engage in order to provide a drive for the rotor disk (17).
  • lifting devices (22) By means of lifting devices (22), it is possible here to brace the rotor disk (17) in the area of the upper frame part in such a way that a play-free mounting in the production positioning is provided.
  • Lifting devices (23) clamp the roller bearings (10) in the area of the rotor disk (17). This also ensures a play-free arrangement.
  • Both the lifting device (22) and the lifting device (23) can be formed by hydraulic cylinders.
  • FIG. 3 shows the arrangement according to FIG. 2 after activation of the lifting device (15).
  • the frame upper part (4) is pivoted about the pivot bearing (16).
  • the lifting devices (22, 23) are moved back so that a rotation of the rotor disc (17) in the region of the frame upper part (4) possible is.
  • the rotor disk (17) can be rotated in this operating state by 180 °, so that the plotted above in the drawing roller (6) with the roller (7) reverses the position.
  • the production can be continued immediately. For this process, a return of the extruder head is not required.
  • the entire change process typically takes a maximum of five minutes.
  • the upper roller (6) can be exchanged for another roller (6) without the production process in the region of the roller (7) having to be interrupted. Also, after replacing the roller (6), it is possible to provide it with its optimum operating temperature using the heater (14). In the roll replacement process according to FIG. 3 In this way, an optimally prepared roller (6) can be provided.
  • the roller carrier (5) has guides (25) for the roller bearings (8) which extend relative to an axis of rotation (26) of the roller carrier (5) substantially in a radial direction (27).
  • FIG. 4 illustrates in a side view of the calender (1) the arrangement of the motors (11, 12). Due to the design of the motors (11, 12) as gear motors, a single drive of the rollers (6, 7, 9) can be carried out using bevel gear. This avoids both the use of transmission shafts and the use of additional brakes, since the engine braking properties realized also provide the necessary braking forces for an emergency stop operation.
  • FIG. 5 shows in an enlarged view a partial illustration of a cross section of the rotor disk (17) in the region of one of the rollers (19). It can be seen in particular that the rollers (19) in the illustrated production positioning in the region of a trough-like guideway (18) engage in the frame top part (4).
  • FIG. 5 illustrates a positioning of the rotor disk (17) relative to the frame top (4) during activation of the lifting devices (22). This is in the operating state according to FIG. 5 to recognize a gap (24) between the rotor disk (17) and the guide track (18). After a distortion of the components using the lifting device (22), the rotor disk (17) is pressed against the guide track (18).

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  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)

Abstract

The changing device for a calender roll unit (1) has a roll carrier able to rotate in a calender stand (2), holding at least two rolls (6, 7). The rolls can be changed on the carrier, which has at least one guide for each roll, into which the rolls can be inserted with a roll bearing (8) relative to the axis of rotation of the roll carrier in the radial direction.

Description

Vorrichtung zum Wechseln von Walzen an Kalandern zur Herstellung von Profilbahnen, die zum Aufbau von Reifen vorgesehen sind, die mindestens einen Walzenträger aufweist, der drehbeweglich von mindestens einem Kalanderständer gehaltert ist und der zur mindestens zeitweiligen gleichzeitigen Halterung von mindestens zwei Walzen ausgebildet ist und bei der ein Gestellunterteil des Kalanderständers eine Gegenwalze mit einer glatten Oberfläche haltert und die Walzen mit einer profilierten Oberfläche zur Herstellung des Profils der Profilbahn versehen sind.Apparatus for changing rollers on calenders for producing profiled sheets intended for the construction of tires, comprising at least one roll support, which is rotatably supported by at least one calender stand and which is designed for the at least temporary simultaneous holding of at least two rolls and in which a frame base of the calender stand supports a mating roll with a smooth surface and the rolls are provided with a profiled surface for producing the profile of the profiled sheet.

Mit Hilfe des Kalanders werden Profilstreifen hergestellt. Typischerweise wird das zu verarbeitende Material zwischen zwei Walzen hindurch gefördert, von denen die untere Walze mit einer glatten Oberfläche und die obere Walze mit einer profilierten Oberfläche versehen ist. Das Profil der oberen Walze legt das Profil des hergestellten Produktes fest.With the help of the calender profile strips are produced. Typically, the material to be processed is conveyed between two rolls, of which the lower roll has a smooth surface and the upper roll has a profiled surface. The profile of the upper roller determines the profile of the product produced.

Zur Herstellung unterschiedlicher Produkte ist es erforderlich, das Profil im Bereich der oberen Walze an das aktuelle Produkt anzupassen. Dies kann beispielsweise dadurch erfolgen, daß die obere Walze aus einem Walzenkern und einem austauschbaren Walzenmantel besteht.To produce different products, it is necessary to adapt the profile in the area of the upper roller to the current product. This can be done, for example, that the upper roller consists of a roller core and an exchangeable roll shell.

Ebenfalls ist es beispielsweise aus der DE 44 12 862 C1 bekannt, im Bereich eines drehbeweglich angeordneten Walzenträgers vier unterschiedliche Walzen zu positionieren. Bei einer Drehung des Walzenträgers wird die jeweils benötigte Walze oberhalb der unteren Walze positioniert. Bei einer Verwendung dieser Vorrichtung ist es somit möglich, ohne einen Walzenwechsel wahlweise vier unterschiedliche Produkte zu fertigen.It is also for example from the DE 44 12 862 C1 known to position four different rollers in the region of a rotatably arranged roller carrier. Upon rotation of the roller carrier, the respective required roller is positioned above the lower roller. When using this device, it is thus possible to manufacture four different products without a roll change.

Aus der US-A-5,761,945 ist bereits eine Vorrichtung zur Bearbeitung von Metallstreifen bekannt, bei der eine Anordnung von zwei gegenläufigen walzenförmigen Einrichtungen verwendet ist. Jede der walzenförmigen Einrichtungen weist von einer Hauptwelle getragene Seitenscheiben auf, die eine Mehrzahl von Querstreben haltern. An den Querstreben sind Werkzeuge zur Bearbeitung des Metallstreifens angeordnet.From the US-A-5,761,945 An apparatus for processing metal strips is already known, in which an arrangement of two counter-rotating cylindrical devices is used. Each of the roller-shaped devices has side disks supported by a main shaft, which support a plurality of cross braces. On the cross struts tools for processing the metal strip are arranged.

Aus der US-A-2,997,944 ist ein Kalander bekannt, bei dem im Bereich eines Unterteiles eine Gegenwalze und im Bereich eines drehbeweglich gelagerten Oberteiles eine Anordnung von zwei, drei oder vier Walzen angeordnet ist.From the US-A-2,997,944 a calender is known, in which in the region of a lower part a counter roll and in the region of a rotatably mounted upper part an arrangement of two, three or four rolls is arranged.

In der bereits erwähnten DE 44 12 862 C1 wird ein Kalander gemäß dem Oberbegriff vom Anspruch 1 zur Herstellung von Profilstreifen für die Reifenherstellung beschrieben, bei der oberhalb einer Gegenwalze eine revolverartige Anordnung mit vier Profilwalzen positioniert ist. Die vier Profilwalzen werden von einem drehbeweglich gelagerten Walzenträger positioniert. Die jeweils aktiv verwendete Profilwalze ist unmittelbar oberhalb der Gegenwalze positioniert, um die jeweils benötigten Profilbahnen herzustellen.In the already mentioned DE 44 12 862 C1 a calender is described according to the preamble of claim 1 for the production of tread strips for tire manufacturing, in which above a counter-roller a turret-like arrangement with four profile rollers is positioned. The four profile rollers are rotatable by one positioned whale carrier positioned. The active profile roll used in each case is positioned immediately above the mating roll in order to produce the respectively required profile webs.

Die aus dem Stand der Technik bekannten Vorrichtungen zum Wechseln von Walzen sind noch nicht in optimaler Weise dafür geeignet, eine Durchführung des Wechselvorganges sowohl mit einem geringen Zeitaufwand als auch mit einer großen Flexibilität im Hinblick auf die verwendbaren Walzen durchzuführen.The known from the prior art devices for changing rolls are not yet optimally suited to carry out an implementation of the change process both with a small amount of time and with a great deal of flexibility in terms of usable rolls.

Aufgabe der vorliegenden Erfindung ist es daher, eine vorrichtung der einleitend genannten Art derart zu konstruieren, daß die Herstellung einer großen Anzahl unterschiedlicher Produkte unterstützt und eine Durchführung des Wechselvorganges mit geringem Zeitaufwand ermöglicht wird.Object of the present invention is therefore to construct a device of the aforementioned type such that the production of a large number of different products supported and implementation of the change process is possible with little expenditure of time.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Walzen austauschbar am Walzenträger angeordnet sind und daß der Walzenträger für jede der Walzen mindestens eine Führung aufweist, in die die Walzen mit einem Walzenlager relativ zu einer Drehachse des Walzenträgers in radialer Richtung einsetzbar und entnehmbar sind.This object is achieved in that the rollers are arranged interchangeably on the roller carrier and that the roller carrier for each of the rollers has at least one guide, in which the rollers with a roller bearing relative to a rotational axis of the roller carrier in the radial direction can be used and removed.

Durch die austauschbare Anordnung der Walzen am Walzenträger ist es möglich, eine beliebig große Anzahl unterschiedlicher Walzen bereitzustellen, die jeweils einem bestimmten Produkt zugeordnet sind. Insbesondere ist es möglich, noch während der Produktionsdurchführung mit der aktuell benutzten Walze die für die Durchführung des nächsten Produktionsvorganges vorgesehene Walze im Bereich des Walzenträgers zu positionieren und zur Durchführung der nachfolgenden Produktion zu temperieren. Der Austausch der aktiven Produktionswalze gegen die für die Durchführung des nächsten Produktionsschrittes vorgesehene Walze kann dann mit sehr geringem zeitaufwand durchgeführt werden.The interchangeable arrangement of the rollers on the roller carrier, it is possible to provide an arbitrarily large number of different rollers, each associated with a particular product. In particular, it is still possible to position the roll intended for the implementation of the next production process in the area of the roll carrier during the production run with the currently used roll, and to temper it to carry out the subsequent production. The replacement of the active production roller against the planned for the implementation of the next production step roller can then be carried out in a very small amount of time.

Eine Auswechselung einer der Walzen bei gleichzeitigem Produktionseinsatz einer weiteren Walze wird dadurch unterstützt, daß ein Einsetzen und Entnehmen der Walzen in den Walzenträger in lotrechter Richtung vorgesehen ist.A replacement of one of the rollers with simultaneous production use of another roller is supported by the fact that an insertion and removal of the rollers is provided in the roller carrier in the vertical direction.

Eine vorteilhafte Lagerung wird dadurch bereitgestellt, daß der Walzenträger mittels Rollen im Bereich eines Gestelloberteiles des Kalanderständers gelagert ist.An advantageous storage is provided by the fact that the roller carrier is mounted by means of rollers in the region of a Gestelloberteiles the calender stand.

Zur Durchführung einer Positionierung einer Walze in einer Produktionspositionierung wird vorgeschlagen, daß der walzenträger aus mindestens einer Rotorscheibe ausgebildet ist, die eine Verzahnung zur Verbindung mit mindestens einem Antriebszahnrad aufweist.For carrying out a positioning of a roll in a production positioning, it is proposed that the roll carrier be formed from at least one rotor disk, which has a toothing for connection to at least one drive gear wheel.

Eine typische Anordnung mit zwei Walzen zur Materialbearbeitung wird dadurch bereitgestellt, daß benachbart zum Walzenträger eine Gegenwalze für die Walzen angeordnet ist.A typical arrangement with two rolls for material processing is provided by the fact that adjacent to the roll carrier a counter roll for the rolls is arranged.

Zur Gewährleistung eines konstanten Walzenabstandes in Längsrichtung der Walzen auch bei einer auftretenden Walzendurchbiegung wird vorgeschlagen, daß die Gegenwalze und mindestens eine der Walzen relativ zueinander einen Längsachsenversatz aufweisen.To ensure a constant roll spacing in the longitudinal direction of the rolls, even in the event of roll deflection occurring, it is proposed that the counter roll and at least one of the rolls have a longitudinal axis offset relative to each other.

Ein Auswechslungsvorgang der Walzen wird dadurch unterstützt, daß der Walzenträger höhenverstellbar angeordnet ist.A replacement process of the rollers is supported by the fact that the roller carrier is arranged vertically adjustable.

Eine einfache Höhenverstellbarkeit wird dadurch bereitgestellt, daß der Walzenträger gemeinsam mit dem Gestelloberteil verschwenkbar angeordnet ist.A simple height adjustment is provided by the fact that the roller carrier is arranged pivotably together with the frame upper part.

Zur Bereitstellung der erforderlichen Verstellkräfte wird vorgeschlagen, daß zur Positionierung des Walzenträgers ein hydraulischer Antrieb verwendet ist.To provide the necessary adjustment forces, it is proposed that a hydraulic drive be used to position the roller carrier.

Ein typisches Anwendungsgebiet wird dadurch definiert, daß der Kalander zur Herstellung von Profilbahnen ausgebildet ist.A typical field of application is defined by the fact that the calender is designed for the production of profiled sheets.

Insbesondere ist daran gedacht, daß der Kalander zur Verarbeitung von elastomeren Materialien ausgebildet ist.In particular, it is contemplated that the calender is designed to process elastomeric materials.

Ein bevorzugtes Anwendungsgebiet besteht darin, daß der Kalander zur Herstellung von Profilbahnen für Reifen ausgebildet ist.A preferred field of application is that the calender is designed for the production of tire treads.

Zur Unterstützung einer zweckmäßigen Materialverarbeitung ist vorgesehen, daß sich zwischen der Gegenwalze und der benachbarten Walze in einer Produktionspositionierung ein Spalt erstreckt.To assist a suitable material processing, it is provided that a gap extends between the mating roll and the adjacent roll in a production positioning.

Eine typische Dimensionierung besteht darin, daß der Spalt eine Dimensionierung im Bereich von 0,2 bis 10 mm aufweist.A typical dimensioning is that the gap has a dimension in the range of 0.2 to 10 mm.

Ein einfaches Antriebskonzept wird dadurch bereitgestellt, daß zum Antrieb der Walzen mindestens zwei Motoren verwendet sind.A simple drive concept is provided by the fact that at least two motors are used to drive the rollers.

Für einen Antrieb der stationären Gegenwalze ist vorgesehen, daß die Gegenwalze mit einem Motor gekoppelt ist.For a drive of the stationary counter-roller is provided that the counter-roller is coupled to a motor.

Ein einfaches Antriebskonzept für die auswechselbaren Walzen wird dadurch bereitgestellt, daß allen im Bereich des Walzenträgers angeordneten Walzen gemeinsam genau ein Motor zugeordnet ist.A simple drive concept for the replaceable rollers is provided by the fact that all of the rollers arranged in the area of the roller carrier together have exactly one motor associated therewith.

Eine weitere Vereinfachung des Antriebssystems erfolgt dadurch, daß die Motoren als Getriebemotoren ausgebildet sind.A further simplification of the drive system is achieved in that the motors are designed as geared motors.

Eine Verbindung einer auswählbaren Walze im Bereich des Walzenträgers mit dem zugeordneten Antrieb erfolgt dadurch, daß der Motor über eine Kupplung mit einer der Walzen verbindbar ist.A compound of a selectable roller in the region of the roller carrier with the associated drive is effected in that the motor is connectable via a coupling with one of the rollers.

Eine spielfreie Fixierung des Walzenträgers in einer Produktionspositionierung bei gleichzeitig mechanisch entlasteten Rollen erfolgt dadurch, daß der Walzenträger von einer Hubeinrichtung spielfrei in eine zugeordnete Lagerung einpreßbar ist.A backlash-free fixation of the roller carrier in a production positioning at the same time mechanically relieved rollers is characterized in that the roller carrier of a lifting device is free of play in an associated storage einpreßbar.

Eine vorteilhafte Bereitstellung der erforderlichen Stellkräfte kann dadurch erfolgen, daß die Hubeinrichtung hydraulisch ausgebildet ist.An advantageous provision of the required actuating forces can be effected in that the lifting device is designed hydraulically.

Eine spielfreie Anordnung der Walze im Bereich des Walzenträgers in einer Produktionspositionierung erfolgt dadurch, daß die Walzenlager von einer Hubeinrichtung spielfrei in die zugeordnete Führung des Walzenträgers einpreßbar sind.A play-free arrangement of the roller in the region of the roller carrier in a production positioning takes place thereby, that the roller bearings can be pressed by a lifting device without play in the associated guide of the roller carrier.

Auch bei dieser Fixierung ist insbesondere daran gedacht, daß die Hubeinrichtung hydraulisch ausgebildet ist.Also in this fixation is especially thought that the lifting device is hydraulically formed.

Zur Bereitstellung einer optimalen Verarbeitungstemperatur für das zu verarbeitende Material wird vorgeschlagen, daß die Walzen mit einer Heizeinrichtung versehen sind.To provide an optimum processing temperature for the material to be processed, it is proposed that the rollers are provided with a heating device.

Eine konstruktiv einfache Zufuhr der erforderlichen Wärmeenergie kann dadurch erfolgen, daß die Heizeinrichtung aus Heißwasserleitungen ausgebildet ist.A structurally simple supply of the required heat energy can be effected in that the heating device is formed from hot water lines.

In den Zeichnungen sind Ausführungsbeispiele der Erfindung schematisch dargestellt. Es zeigen:

Fig. 1
Eine Seitenansicht eines Kalanders mit geschnitten dargestellten Walzenlagern,
Fig. 2
eine Seitenansicht des Kalanders gemäß Blickrichtung 2 in Figur 1,
Fig. 3
der Kalander gemäß Figur 2 nach einem Anheben und Verschwenken eines den Walzenträger halternden Gestelloberteiles,
Fig. 4
eine Seitenansicht des Kalanders gemäß Blickrichtung IV in Figur 1 und
Fig. 5
eine vergrößerte schematische Darstellung zur Veranschaulichung einer Rollenführung des Walzenträgers im Bereich des Gestelloberteiles.
In the drawings, embodiments of the invention are shown schematically. Show it:
Fig. 1
A side view of a calender with cut roller bearings illustrated,
Fig. 2
a side view of the calender according to viewing direction 2 in FIG. 1 .
Fig. 3
the calender according to FIG. 2 after a lifting and pivoting of a roll carrier supporting the roll carrier,
Fig. 4
a side view of the calender according to viewing direction IV in FIG. 1 and
Fig. 5
an enlarged schematic representation for illustrating a roller guide of the roller carrier in the region of the frame top.

Figur 1 zeigt einen Kalander (1), der mit einem Kalanderständer (2) versehen ist. Der Kalanderständer (2) besteht aus einem Gestellunterteil (3) sowie einem Gestelloberteil (4). Im Bereich des Gestelloberteiles (4) ist ein Walzenträger (5) angeordnet, der beim dargestellten Ausführungsbeispiel (2) die Walzen (6, 7) haltert. FIG. 1 shows a calender (1), which is provided with a calender stand (2). The calender stand (2) consists of a frame base (3) and a frame top (4). In the region of the frame upper part (4), a roller carrier (5) is arranged, which supports the rollers (6, 7) in the illustrated embodiment (2).

Die Walzen (6, 7) sind über Walzenlager (8) drehbeweglich im Bereich des Walzenträgers (5) angeordnet. Im Bereich des Gestellunterteiles (3) ist eine Gegenwalze (9) angeordnet, die über Walzenlager (10) drehbeweglich gelagert ist. Für einen Antrieb der Walze (9) ist ein Motor (11) vorgesehen. Als Motor (11) kann insbesondere ein Getriebemotor verwendet werden.The rollers (6, 7) are arranged rotatably via roller bearings (8) in the region of the roller carrier (5). In the region of the lower frame part (3), a counter-roller (9) is arranged, which is rotatably mounted on roller bearings (10). For a drive of the roller (9), a motor (11) is provided. As a motor (11) can be used in particular a geared motor.

Für einen Antrieb der Walzen (6, 7) im Bereich des Walzenträgers (5) ist ein Motor (12) vorgesehen, der ebenfalls als ein Getriebemotor ausgebildet sein kann. Der Motor (12) wird über eine Kupplung (13) jeweils mit derjenigen der Walzen (6, 7) verbunden, die benachbart zur Gegenwalze (9) angeordnet ist.For a drive of the rollers (6, 7) in the region of the roller carrier (5), a motor (12) is provided, which may also be designed as a geared motor. The motor (12) is connected via a coupling (13) in each case with that of the rollers (6, 7), which is arranged adjacent to the counter-roller (9).

Die Gegenwalze (9) ist mit einer glatten Oberfläche ausgebildet. Die Walzen (6, 7) weisen mindestens bereichsweise eine profilierte Oberfläche auf oder sind glatt ausgebildet. Zur Temperierung der Walzen (6, 7) sind Heizeinrichtungen (14) verwendet. Die Heizeinrichtungen (14) können als Rohrleitungen für einen Heißwasserkreislauf ausgebildet sein.The counter-roller (9) is formed with a smooth surface. The rollers (6, 7) have at least partially a profiled surface or are smooth. For temperature control of the rollers (6, 7) heaters (14) are used. The heating devices (14) can be designed as pipelines for a hot water circuit.

Die Seitenansicht gemäß Figur 2 veranschaulicht, daß das Gestelloberteil (4) von zwei Hubeinrichtungen (15) relativ zum Gestellunterteil (3) positionierbar ist. Die Hubeinrichtung (15) ist als ein Hydraulikzylinder ausgebildet.The side view according to FIG. 2 illustrates that the Gestelloberteil (4) of two lifting devices (15) relative to the frame base (3) is positionable. The lifting device (15) is designed as a hydraulic cylinder.

Die Hubbewegung wird mit einer gleichzeitigen Schwenkbewegung um ein Schwenklager (16) herum durchgeführt. Hierdurch ist es beispielsweise möglich, mit zwei Hubeinrichtungen (15) zur unterschiedlichen Durchführung der Hubbewegung eine Schrägstellung im Arbeitszustand vorzugeben, um eine definierte Schrägstellung zu realisieren oder um eine Steuerung einer Positionierung der Walzen durchzuführen.The lifting movement is performed with a simultaneous pivotal movement about a pivot bearing (16) around. This makes it possible, for example, with two lifting devices (15) for different execution of the lifting movement to specify an inclined position in the working state in order to realize a defined skew or to perform a control of a positioning of the rollers.

Beim dargestellten Ausführungsbeispiel besteht der Walzenträger (6) aus zwei separaten Rotorscheiben (17). Die Rotorscheiben (17) sind in einer Führungsbahn (18) des Gestelloberteiles (4) gelagert. Die Lagerung erfolgt unter Verwendung von Rollen (19), die von der Rotorscheibe (17) getragen sind und an der Führungsbahn (18) entlang rollen. Die Rotorscheibe (17) weist eine Verzahnung (20) auf, in die Zahnräder (21) eingreifen, um einen Antrieb für die Rotorscheibe (17) bereitzustellen.In the illustrated embodiment, the roller carrier (6) consists of two separate rotor discs (17). The rotor disks (17) are mounted in a guide track (18) of the frame upper part (4). The storage is carried out using rollers (19) which are supported by the rotor disk (17) and roll along the guide track (18). The rotor disk (17) has a toothing (20) in which gear wheels (21) engage in order to provide a drive for the rotor disk (17).

Über Hubeinrichtungen (22) ist es möglich, die Rotorscheibe (17) im Bereich des Gestelloberteiles hier derart zu verspannen, daß eine spielfreie Halterung in der Produktionspositionierung bereitgestellt wird. Über Hubeinrichtungen (23) werden die Walzenlager (10) im Bereich der Rotorscheibe (17) verspannt. Auch hierdurch wird eine spielfreie Anordnung gewährleistet. Sowohl die Hubeinrichtung (22) als auch die Hubeinrichtung (23) können von Hydraulikzylindern ausgebildet werden.By means of lifting devices (22), it is possible here to brace the rotor disk (17) in the area of the upper frame part in such a way that a play-free mounting in the production positioning is provided. Lifting devices (23) clamp the roller bearings (10) in the area of the rotor disk (17). This also ensures a play-free arrangement. Both the lifting device (22) and the lifting device (23) can be formed by hydraulic cylinders.

Figur 3 zeigt die Anordnung gemäß Figur 2 nach einer Aktivierung der Hubeinrichtung (15). Nach einem Ausfahren der Hydraulikzylinder ist das Gestelloberteil (4) um das Schwenklager (16) herum verschwenkt. Die Hubeinrichtungen (22, 23) sind zurückgefahren, so daß eine Rotation der Rotorscheibe (17) im Bereich des Gestelloberteiles (4) möglich ist. Die Rotorscheibe (17) kann in diesem Betriebszustand um 180° Grad gedreht werden, so daß die in der Zeichnung oben eingezeichnete Walze (6) mit der Walze (7) die Position vertauscht. Nach einem Zurückfahren der Hubeinrichtung (15) kann unmittelbar die Produktion fortgesetzt werden. Für diesen Vorgang ist ein Zurückfahren des Extruderkopfes nicht erforderlich. Der gesamte Wechselvorgang dauert typischerweise maximal fünf Minuten. FIG. 3 shows the arrangement according to FIG. 2 after activation of the lifting device (15). After extension of the hydraulic cylinder, the frame upper part (4) is pivoted about the pivot bearing (16). The lifting devices (22, 23) are moved back so that a rotation of the rotor disc (17) in the region of the frame upper part (4) possible is. The rotor disk (17) can be rotated in this operating state by 180 °, so that the plotted above in the drawing roller (6) with the roller (7) reverses the position. After a return of the lifting device (15), the production can be continued immediately. For this process, a return of the extruder head is not required. The entire change process typically takes a maximum of five minutes.

Im Betriebszustand gemäß Figur 2 kann die obere Walze (6) gegen eine andere Walze (6) ausgetauscht werden, ohne daß der Produktionsvorgang im Bereich der Walze (7) unterbrochen werden müßte. Ebenfalls ist es nach einem Austauschen der Walze (6) möglich, diese unter Verwendung der Heizeinrichtung (14) mit ihrer optimalen Betriebstemperatur zu versehen. Beim Walzenaustauschvorgang gemäß Figur 3 kann hierdurch eine optimal vorbereitete Walze (6) bereitgestellt werden.In the operating state according to FIG. 2 the upper roller (6) can be exchanged for another roller (6) without the production process in the region of the roller (7) having to be interrupted. Also, after replacing the roller (6), it is possible to provide it with its optimum operating temperature using the heater (14). In the roll replacement process according to FIG. 3 In this way, an optimally prepared roller (6) can be provided.

Der Walzenträger (5) weist Führungen (25) für die Walzenlager (8) auf, die sich relativ zu einer Drehachse (26) des Walzenträgers (5) im wesentlichen in einer radialen Richtung (27) erstrecken.The roller carrier (5) has guides (25) for the roller bearings (8) which extend relative to an axis of rotation (26) of the roller carrier (5) substantially in a radial direction (27).

Figur 4 veranschaulicht in einer Seitendarstellung des Kalanders (1) die Anordnung der Motoren (11, 12). Durch die Ausbildung der Motoren (11, 12) als Getriebemotoren kann ein Einzelantrieb der Walzen (6, 7, 9) unter Verwendung von Kegelradgetrieben erfolgen. Es wird hierdurch sowohl die Verwendung von Getriebewellen als auch die Verwendung von zusätzlichen Bremsen vermieden, da die realisierten Motorbremseigenschaften auch für ein Not-Aus-Betrieb die erforderlichen Bremskräfte zur Verfügung stellen. FIG. 4 illustrates in a side view of the calender (1) the arrangement of the motors (11, 12). Due to the design of the motors (11, 12) as gear motors, a single drive of the rollers (6, 7, 9) can be carried out using bevel gear. This avoids both the use of transmission shafts and the use of additional brakes, since the engine braking properties realized also provide the necessary braking forces for an emergency stop operation.

Figur 5 zeigt in einer vergrößerten Darstellung eine teilweise Abbildung eines Querschnittes der Rotorscheibe (17) im Bereich einer der Rollen (19). Zu erkennen ist insbesondere, daß die Rollen (19) in der dargestellten Produktionspositionierung im Bereich einer muldenartigen Führungsbahn (18) in das Gestelloberteil (4) eingreifen. Figur 5 veranschaulicht eine Positionierung der Rotorscheibe (17) relativ zum Gestelloberteil (4) während einer Aktivierung der Hubeinrichtungen (22). Hierdurch ist im Betriebszustand gemäß Figur 5 noch ein Spalt (24) zwischen der Rotorscheibe (17) und der Führungsbahn (18) zu erkennen. Nach einem Verspannen der Bauteile unter Verwendung der Hubeinrichtung (22) wird die Rotorscheibe (17) gegen die Führungsbahn (18) gedrückt. FIG. 5 shows in an enlarged view a partial illustration of a cross section of the rotor disk (17) in the region of one of the rollers (19). It can be seen in particular that the rollers (19) in the illustrated production positioning in the region of a trough-like guideway (18) engage in the frame top part (4). FIG. 5 illustrates a positioning of the rotor disk (17) relative to the frame top (4) during activation of the lifting devices (22). This is in the operating state according to FIG. 5 to recognize a gap (24) between the rotor disk (17) and the guide track (18). After a distortion of the components using the lifting device (22), the rotor disk (17) is pressed against the guide track (18).

Im Bereich der sonstigen einander gegenüberliegenden Begrenzungsflächen des Gestelloberteiles (4) und der Rollen (19) verbleibt aber auch nach einer Aktivierung der Hubeinrichtungen (22) ein Spalt. Hierdurch wird gewährleistet, daß die Rotorscheibe (17) im unverspannten Zustand ausschließlich über die Rollen (19) geführt wird und daß im verspannten Zustand ein flächiger Druckkontakt zwischen den Rollen (19) und dem Gestelloberteil (4) vermieden wird, so daß die Rollen (19) von den Druckkräften der Hubeinrichtung (22) unbelastet sind.In the area of the other, opposite boundary surfaces of the frame upper part (4) and the rollers (19), however, a gap also remains after activation of the lifting devices (22). This ensures that the rotor disc (17) is guided in the unstressed state exclusively on the rollers (19) and that in the clamped state, a flat pressure contact between the rollers (19) and the frame top (4) is avoided, so that the rollers ( 19) are unloaded by the pressure forces of the lifting device (22).

Claims (23)

  1. Device for changing rolls (6, 7) on calanders (1) for producing profiled webs which are intended for the construction of tyres, said device comprising at least one roll carrier (5) which is held in a rotatable manner by at least one calander stand (2) and which is designed to simultaneously hold at least two rolls (6, 7) at least temporarily, and in which a frame lower part (3) of the calander stand (2) holds a counter-roll (9) with a smooth surface and the rolls (6, 7) are provided with a profiled surface for producing the profile of the profiled web, characterised in that the rolls (6, 7) are arranged on the roll carrier (5) in an exchangeable manner, and in that the roll carrier (5) has at least one guide (25) for each of the rolls (6, 7), in which the rolls (6, 7) with a roll mount (8) can be inserted and removed in the radial direction (27) relative to an axis of rotation (26) of the roll carrier (5).
  2. Device according to claim 1, characterised in that the rolls (6, 7) are inserted in and removed from the roll carrier (5) in the vertical direction.
  3. Device according to claim 1 or 2, characterised in that the roll carrier (5) is mounted by means of rollers (19) in the region of a frame upper part (4) of the calander stand (2).
  4. Device according to one of claims 1 to 3, characterised in that the roll carrier (5) is formed of at least one rotor disc (17) which has a toothing (20) for connection to at least one toothed drive wheel (21).
  5. Device according to one of claims 1 to 4, characterised in that a counter-roll (9) for the rolls (6, 7) is arranged adjacent to the roll carrier (5).
  6. Device according to one of claims 1 to 5, characterised in that the counter-roll (9) and at least one of the rolls (6, 7) have a longitudinal axis offset relative to one another.
  7. Device according to one of claims 1 to 6, characterised in that the roll carrier (5) is arranged in a height-adjustable manner.
  8. Device according to one of claims 1 to 7, characterised in that the roll carrier (5) is arranged such that it can be pivoted together with the frame upper part (4).
  9. Device according to one of claims 1 to 8, characterised in that a hydraulic drive is used for positioning the roll carrier (5).
  10. Device according to one of claims 1 to 9, characterised in that the calander (1) is designed for processing elastomeric materials.
  11. Device according to one of claims 1 to 10, characterised in that a gap extends between the counter-roll (9) and the adjacent roll (6, 7) in a product positioning.
  12. Device according to claim 11, characterised in that the gap has a size in the range from 0.2 to 10 mm.
  13. Device according to one of claims 1 to 12, characterised in that at least two motors (11, 12) are used for driving the rolls (6, 7, 9).
  14. Device according to one of claims 1 to 13, characterised in that the counter-roll (9) is coupled to one motor (11).
  15. Device according to one of claims 1 to 14, characterised in that one motor (12) is assigned jointly to all the rolls (6, 7) arranged in the region of the roll carrier (5).
  16. Device according to one of claims 1 to 15, characterised in that the motors (11, 12) are designed as gear motors.
  17. Device according to one of claims 1 to 16, characterised in that the motor (12) can be connected via a clutch (13) to one of the rolls (6, 7).
  18. Device according to one of claims 1 to 17, characterised in that the roll carrier (5) can be pressed by a lifting device (22) without play into an associated mount.
  19. Device according to claim 18, characterised in that the lifting device (22) is hydraulic.
  20. Device according to one of claims 1 to 19, characterised in that the roll mounts (8) can be pressed by a lifting device (23) without play into the associated guide of the roll carrier (5).
  21. Device according to claim 20, characterised in that the lifting device (23) is hydraulic.
  22. Device according to one of claims 1 to 21, characterised in that the rolls (6, 7) are provided with a heating device (14).
  23. Device according to claim 22, characterised in that the heating device (14) is formed of hot water lines.
EP04001048A 2003-03-11 2004-01-20 Device for changing rolls on calenders Expired - Lifetime EP1457272B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10310468 2003-03-11
DE10310468A DE10310468A1 (en) 2003-03-11 2003-03-11 Device for changing rolls on calenders

Publications (3)

Publication Number Publication Date
EP1457272A2 EP1457272A2 (en) 2004-09-15
EP1457272A3 EP1457272A3 (en) 2006-01-04
EP1457272B1 true EP1457272B1 (en) 2008-04-16

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ID=32748185

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Application Number Title Priority Date Filing Date
EP04001048A Expired - Lifetime EP1457272B1 (en) 2003-03-11 2004-01-20 Device for changing rolls on calenders

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EP (1) EP1457272B1 (en)
AT (1) ATE392274T1 (en)
DE (2) DE10310468A1 (en)
ES (1) ES2305587T3 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007049871A1 (en) * 2007-10-18 2009-04-23 Continental Aktiengesellschaft Device for changing the cross-sectional shape of an extruded round cord made of a rubber mixture
EP3415676B1 (en) * 2014-09-23 2023-07-19 Andritz Küsters GmbH Calendar
CN106077102B (en) * 2016-07-13 2017-10-17 邯钢集团邯宝钢铁有限公司 A kind of Mill speedy erection system
CN114671596B (en) * 2022-05-07 2023-09-26 信义光伏产业(安徽)控股有限公司 Online replacement method for connecting shaft of glass production calender

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US494904A (en) * 1893-04-04 Edwin henry story
GB868498A (en) * 1958-02-04 1961-05-17 Edward Cecil Mills Improvements relating to roller presses and mills for performing mangling, calendering, embossing and similar and other pressure-applying operations
DE3416212C2 (en) * 1984-05-02 1986-12-18 Kleinewefers Gmbh, 4150 Krefeld Device for changing at least one roll for a calender
AU7935594A (en) * 1993-10-18 1995-05-08 Jack-Eric Vandenbroucke Quick automated tool changer roll forming apparatus
DE4412862C1 (en) * 1994-04-14 1995-08-10 Berstorff Gmbh Masch Hermann Rapid roll changer, for high quality calendering and embossing of
DE19856517C2 (en) * 1998-12-08 2001-02-15 Voith Paper Patent Gmbh Device for exchanging rolls in a calender

Also Published As

Publication number Publication date
EP1457272A2 (en) 2004-09-15
DE502004006806D1 (en) 2008-05-29
ATE392274T1 (en) 2008-05-15
ES2305587T3 (en) 2008-11-01
DE10310468A1 (en) 2004-09-23
EP1457272A3 (en) 2006-01-04

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