EP0285942A1 - Device for guiding the rolls of an essentially vertical calender - Google Patents

Device for guiding the rolls of an essentially vertical calender Download PDF

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Publication number
EP0285942A1
EP0285942A1 EP88104921A EP88104921A EP0285942A1 EP 0285942 A1 EP0285942 A1 EP 0285942A1 EP 88104921 A EP88104921 A EP 88104921A EP 88104921 A EP88104921 A EP 88104921A EP 0285942 A1 EP0285942 A1 EP 0285942A1
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EP
European Patent Office
Prior art keywords
roller
base part
force
calender
force element
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.)
Granted
Application number
EP88104921A
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German (de)
French (fr)
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EP0285942B1 (en
Inventor
Hans Dr. Dahl
Josef Schneid
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Sulzer Escher Wyss GmbH
Original Assignee
Sulzer Escher Wyss GmbH
Escher Wyss GmbH
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Application filed by Sulzer Escher Wyss GmbH, Escher Wyss GmbH filed Critical Sulzer Escher Wyss GmbH
Priority to AT88104921T priority Critical patent/ATE63342T1/en
Publication of EP0285942A1 publication Critical patent/EP0285942A1/en
Application granted granted Critical
Publication of EP0285942B1 publication Critical patent/EP0285942B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • D21G1/002—Opening or closing mechanisms; Regulating the pressure

Definitions

  • the invention relates to a device for guiding the rolls of a substantially vertical calender, wherein to compensate for overhanging loads at each roll end of a roll a movable lever-like part containing the roll bearing is provided, which is pivotable substantially vertically, the pivot axis parallel to the axis of the roll runs, and on which acts a force element, which is able to apply the force necessary to compensate for the overhanging loads and, if necessary, no longer allow this force to act so that the roller can be lowered.
  • the force element is supported on a part, which is separately attached to the frame of the calender.
  • This has the disadvantage that when changing the diameter of one or more rollers e.g. by regrinding, the adjustment of both parts 17 and 18 of the German patent application 36 40 161 is difficult.
  • the object of the invention is to provide a device in which this adjustment is made by changing the position of a single part so that e.g. the adjustment can be done by motor.
  • each roll end has a vertically adjustable on the stand of the calender, In the set position, fixable base part is assigned, in which the movable part, on which the bearing of the roller end is located, has its pivotable bearing point, the force element being arranged between the base part and the movable part.
  • the base part can be guided essentially vertically in a sliding guide on the frame of the calender. This results in a simple and reliable guidance of the base part in the vertical direction.
  • the base part can be fixed by means of an adjustable positioning device.
  • the base part can preferably be fixed by means of an adjusting ring which is screwed onto a threaded spindle on which the base part rests.
  • the threaded spindle can be rotated by a motor, and in order to avoid an unintentional adjustment of the adjusting ring when the threaded spindle rotates, the force element can be actuated in the opposite direction to form the relief force. As a result, the base part is lifted off the adjusting ring so that it can rotate with the threaded spindle and is not adjusted.
  • An adjustable stop can be arranged between each base part and the movable part, against which the movable part is supported when the calender is open when the roller is lowered.
  • the device for compensating overhanging loads is simultaneously suitable for the rapid opening of the calender, with the moving parts moving apart with the rollers.
  • the force element can be dimensioned to apply a force exceeding the weight of the roller, an adjustable stop being arranged between the base part and the movable part, by means of which the movement of the movable part is limited when the roller is lifted upwards. This gives the possibility of opening the calender by moving the rollers upwards.
  • the movable part can be in the form of a one-armed lever, the force element acting between the axis of rotation and the roller bearing. This results in an embodiment which takes up little space and does not pose any problems when placed on the calender frame.
  • the movable part can also have the form of a two-armed lever, the force element acting on the arm of the lever facing away from the roller bearing.
  • This arrangement has the advantage that it can require lower forces of the force element.
  • the force element can preferably be a cylinder-piston device which can be acted upon by suitable pressures with hydraulic or gaseous medium.
  • the calender shown in Figures 1 and 2 of the drawing has a frame 1 on which a vertical sliding guide 2 is formed.
  • Two pressure cylinders are arranged along the slide guide 2, a lower 3 with a piston 4 and an upper pressure cylinder 5 with a piston 6.
  • the lower pressure cylinder 3 is shown free-standing, while the upper pressure cylinder 5 is fixed to the slide guide.
  • Base parts 7 are arranged on the slide guide 2, in which lever-like movable parts 10 are mounted on pins 8, each of which carries a bearing 11 of a roller 12 or 13 at its ends.
  • the rollers 12 located at the ends are preferably deflection compensation rollers, while the intermediate rollers 13 are hard or soft rollers in a known manner as required, which need to be reground periodically.
  • the movement of the movable part 10 is limited downwards by an adjustable stop 14, upwards by an also adjustable stop 14 ⁇ .
  • the movable part 10 is under the influence of a force element 15, in this case a cylinder-piston device, which can be connected by supply lines 16, 17 to a source of hydraulic pressure medium or a pressure of suitable pressure.
  • a vertical threaded spindle 18 with a motor drive 20 is provided, on which adjusting rings 21 are screwed, each ring being assigned to a base part 7.
  • the setting rings 21 form vertically adjustable stop parts on which the corresponding base part rests during operation.
  • FIGS. 3, 4 and 5 show different embodiments of the base parts 7 with the movable parts 10.
  • FIG. 3 corresponds to an enlargement of the embodiment according to FIGS. 1 and 2.
  • FIG. 4 shows an embodiment in which the base part 7 lies completely in front of the frame 1.
  • the force element 15 is located between the pivot axis of the movable part 10 given by the pin 8 and the roller bearing 11 or the roller axis A.
  • the movable part 10 has the shape of a two-armed lever, with pins 8 arranged in its central region, the force element 15 acting on the arm of the lever facing away from the roller bearing 11.
  • the rollers are in the position in which they press against one another and roll a material web (not shown).
  • the adjusting rings 21 are set on the threaded spindle 18 so that the base parts 7 supported by them are in a position in which the movable parts 10 run essentially horizontally.
  • the force elements 15 thereby develop an upward force, which the overhanging loads, i.e. balances the weight of the bearings 11 and any parts attached to them. As a result, the rollers are essentially kept free from the bending influences of these loads.
  • the force elements 15 are dimensioned for applying a force that exceeds the weight of the respective roller.
  • the upper pressure cylinder 5 is depressurized, the piston 6 being drawn in.
  • the force elements 15 are exposed to a higher pressure through the feed line 17 than what is required to compensate for the overhanging loads, so that they abut the upper stops 14 '.
  • the adjusting rings 21 can in principle be brought to the correct height by hand.
  • the threaded spindle 18 can preferably be driven by a motor, the adjusting rings 21, on which the base parts 7 rest, being held in place by friction or by an external device and being unable to rotate with the threaded spindle 18. They are therefore moved either downwards or upwards along the threaded spindle.
  • the sliding guide 2 of the base parts 7 are replaced by parallel links or a similar lever arrangement.
  • the base parts can be fixed using cables or chains that can be adjusted using rollers or pinions.
  • a gear movable along a vertical rack or chain is also conceivable.
  • the stops 14, 14 ⁇ can be replaced by hydraulic stops and combined with the force element, as described in German patent application 36 40 161.
  • the opening speed of the individual rollers in terms of size as well as the course can e.g. can be controlled by throttles, so that e.g. hard hitting is avoided.
  • the force element 15 also need not be a cylinder-piston device, but e.g. a pressure chamber made of elastic material like a bellows. Also magnetic or mechanical elements e.g. Feathers are conceivable.

Landscapes

  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Paper (AREA)
  • Preventing Unauthorised Actuation Of Valves (AREA)
  • Supply And Installment Of Electrical Components (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Finger-Pressure Massage (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Drying Of Solid Materials (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Photographic Developing Apparatuses (AREA)

Abstract

The calender is provided with base parts 7, which are vertically adjustable on the frame l of the calender and in which there are mounted, in a manner, movable, lever-shaped pivotable elements 10, at the ends of which the roll bearings 11 are located. Force elements 15, which serve to compensate for overhanging loads, are arranged between the base parts 7 and the movable elements 10. At the same time, stops 14, 14' are provided, against which the elements 10 support themselves when the calender is open. <IMAGE>

Description

Die Erfindung betrifft eine Vorrichtung zur Führung der Walzen eines im wesentlichen vertikalen Kalanders, wobei zur Kompensation überhängender Lasten an jedem Walzenende einer Walze ein die Walzenlagerung enthaltender beweglicher hebelartiger Teil vorgesehen ist, welcher im wesentlichen vertikal schwenkbar ist, wobei die Schwenkachse parallel zur Achse der Walze verläuft, und auf welchen ein Kraftelement einwirkt, welches in der Lage ist, die zum Kompensieren der überhängenden Lasten nötige Kraft aufzubringen und gegebenenfalls diese Kraft nicht mehr wirken zu lassen, damit die Walze abgesenkt werden kann.The invention relates to a device for guiding the rolls of a substantially vertical calender, wherein to compensate for overhanging loads at each roll end of a roll a movable lever-like part containing the roll bearing is provided, which is pivotable substantially vertically, the pivot axis parallel to the axis of the roll runs, and on which acts a force element, which is able to apply the force necessary to compensate for the overhanging loads and, if necessary, no longer allow this force to act so that the roller can be lowered.

Eine derartige Vorrichtung is in der nicht vorveröffentlichten deutschen Patentanmeldung 36 40 161 vorgeschlagen worden.Such a device has been proposed in the unpublished German patent application 36 40 161.

Bei dieser Vorrichtung ist das Kraftelement jeweils auf einem Teil abgestützt, welcher gesondert am Gerüst des Kalanders befestigt ist. Das hat den Nachteil, daß bei einer Änderung des Durchmessers einer oder mehrerer Walzen z.B. durch Nachschleifen, die Nachstellung beider Teile 17 und 18 der deutschen Patentanmeldung 36 40 161 schwierig ist.In this device, the force element is supported on a part, which is separately attached to the frame of the calender. This has the disadvantage that when changing the diameter of one or more rollers e.g. by regrinding, the adjustment of both parts 17 and 18 of the German patent application 36 40 161 is difficult.

Die Erfindung hat die Schaffung einer Vorrichtung zum Ziel, bei welcher diese Nachstellung durch Veränderung der Lage eines einzigen Teiles geschieht, so daß z.B. die Verstellung motorisch erfolgen kann.The object of the invention is to provide a device in which this adjustment is made by changing the position of a single part so that e.g. the adjustment can be done by motor.

Die erfindungsgemäße Vorrichtung, durch welche dieses Ziel erreicht wird, ist dadurch gekennzeichnet, daß jedem Walzenende ein am Gerüst des Kalanders vertikal verstellbarer, in der eingestellten Lage fixierbarer Basisteil zugeordnet ist, in welchem der bewegliche Teil, auf welchem sich die Lagerung des Walzenendes befindet, seine schwenkbare Lagerstelle hat, wobei das Kraftelement zwischen dem Basisteil und dem beweglichen Teil angeordnet ist.The device according to the invention, by means of which this goal is achieved, is characterized in that each roll end has a vertically adjustable on the stand of the calender, In the set position, fixable base part is assigned, in which the movable part, on which the bearing of the roller end is located, has its pivotable bearing point, the force element being arranged between the base part and the movable part.

Dabei kann der Basisteil in einer Gleitführung am Gerüst des Kalanders im wesentlichen vertikal geführt sein. Dadurch wird eine einfache und zuverlässige Führung des Basisteiles in vertikaler Richtung erhalten.The base part can be guided essentially vertically in a sliding guide on the frame of the calender. This results in a simple and reliable guidance of the base part in the vertical direction.

Die Fixierung des Basisteiles kann mittels einer verstellbaren Positioniervorrichtung erfolgen. Vorzugsweise kann die Fixierung des Basisteiles mittels eines Einstellringes erfolgen, welcher an einer Gewindespindel aufgeschraubt ist, auf welchem der Basisteil aufliegt.The base part can be fixed by means of an adjustable positioning device. The base part can preferably be fixed by means of an adjusting ring which is screwed onto a threaded spindle on which the base part rests.

Dabei kann die Gewindespindel motorisch drehbar sein, und zur Vermeidung einer ungewollten Verstellung des Einstellringes bei einer Drehung der Gewindespindel, das Kraftelement in umgekehrtem sinn zur Bildung der Entlastungskraft betätigbar sein. Dadurch wird der Basisteil vom Einstellring abgehoben, so daß sich dieser mit der Gewindespindel drehen kann und nicht verstellt wird.The threaded spindle can be rotated by a motor, and in order to avoid an unintentional adjustment of the adjusting ring when the threaded spindle rotates, the force element can be actuated in the opposite direction to form the relief force. As a result, the base part is lifted off the adjusting ring so that it can rotate with the threaded spindle and is not adjusted.

Zwischen jedem Basisteil und dem beweglichen Teil kann ein verstellbarer Anschlag angeordnet sein, gegen welchen sich der bewegliche Teil bei nach unten geöffnetem Kalander abstützt, wenn die Walze abgesenkt wird.An adjustable stop can be arranged between each base part and the movable part, against which the movable part is supported when the calender is open when the roller is lowered.

Dadurch wird die Vorrichtung zur Kompensation überhängender Lasten gleichzeitig zur raschen Öffnung des Kalanders geeignet, wobei sich die beweglichen Teile mit den Walzen auseinander bewegen.As a result, the device for compensating overhanging loads is simultaneously suitable for the rapid opening of the calender, with the moving parts moving apart with the rollers.

Das Kraftelement kann zum Aufbringen einer das Gewicht der Walze übersteigenden Kraft dimensioniert sein, wobei zwischen dem Basisteil und dem beweglichen Teil ein verstellbarer Anschlag angeordnet ist, durch welchen die Bewegung des beweglichen Teiles bei einem Abheben der Walze nach oben begrenzt ist. Dadurch wird die Möglichkeit gewonnen, den Kalander durch eine Bewegung der Walzen nach oben zu öffnen.The force element can be dimensioned to apply a force exceeding the weight of the roller, an adjustable stop being arranged between the base part and the movable part, by means of which the movement of the movable part is limited when the roller is lifted upwards. This gives the possibility of opening the calender by moving the rollers upwards.

Der bewegliche Teil kann die Form eines einarmigen Hebels haben, wobei das Kraftelement zwischen der Drehachse und der Walzenlagerung angreift. Dadurch wird eine Ausführungsform erhalten, welche wenig Raum beansprucht und bei der Anordnung am Gerüst des Kalanders keine Probleme bietet.The movable part can be in the form of a one-armed lever, the force element acting between the axis of rotation and the roller bearing. This results in an embodiment which takes up little space and does not pose any problems when placed on the calender frame.

Der bewegliche Teil kann jedoch auch die Form eines zweiarmigen Hebels haben, wobei das Kraftelement am von der Walzenlagerung abgewandten Arm des Hebels angreift. Diese Anordnung hat den Vorteil, daß sie geringere Kräfte des Kraftelementes erfordern kann.However, the movable part can also have the form of a two-armed lever, the force element acting on the arm of the lever facing away from the roller bearing. This arrangement has the advantage that it can require lower forces of the force element.

Vorzugsweise kann das Kraftelement eine Zylinder-Kolbenvorrichtung sein, die mit hydraulischem oder gasförmigem Medium geeigneter Drücke beaufschlagbar ist.The force element can preferably be a cylinder-piston device which can be acted upon by suitable pressures with hydraulic or gaseous medium.

Die Erfindung wird anhand einer in der Zeichnung schematisch dargestellten Ausführungsform erläutert.The invention is explained with reference to an embodiment shown schematically in the drawing.

Es zeigen:

  • Fig. 1 einen Kalander mit der erfindungsgemäßen Vorrichtung in geschlossenem Zustand,
  • Fig. 2 den Kalander aus Fig. 1 in geöffnetem Zustand,
  • Fig. 3 eine erste Ausführungsform der Erfindung, bei welcher der bewegliche Teil die Form eines einarmigen Hebels hat,
  • Fig. 4 eine andere Ausführungsform dieser Art und
  • Fig. 5 eine Ausführungsform, bei welcher der bewegliche Teil die Form eines zweiarmigen Hebels hat.
Show it:
  • 1 shows a calender with the device according to the invention in the closed state,
  • 2 the calender from FIG. 1 in the open state,
  • 3 shows a first embodiment of the invention, in which the movable part is in the form of a one-armed lever,
  • Fig. 4 shows another embodiment of this type and
  • Fig. 5 shows an embodiment in which the movable part is in the form of a has two-armed lever.

In der Zeichnung sind jeweils einander entsprechende Teile mit gleichen Bezugszeichen bezeichnet.In the drawing, corresponding parts are identified by the same reference numerals.

Der in den Figuren 1 und 2 der Zeichnung dargestellte Kalander hat eine Gerüst 1, auf welchem eine vertikale Gleitführung 2 ausgebildet ist. Entlang der Gleitführung 2 sind zwei Anpresszylinder angeordnet, ein unterer 3 mit einem Kolben 4 und ein oberer Anpresszylinder 5 mit einem Kolben 6. Der untere Anpresszylinder 3 ist freistehend dargestellt, während der obere Anpresszylinder 5 an der Gleitführung fixiert ist. An der Gleitführung 2 sind Basisteile 7 angeordnet, in welchen auf Zapfen 8 hebelartige bewegliche Teile 10 gelagert sind, die an ihren Enden jeweils eine Lagerung 11 einer Walze 12 bzw. 13 tragen. Die an den Enden befindlichen Walzen 12 sind vorzugsweise Durchbiegungsausgleichwalzen, während die Zwischenwalzen 13 in bekannter Weise nach Bedarf harte oder weiche Walzen sind, welche periodisch nachgeschliffen werden müssen.The calender shown in Figures 1 and 2 of the drawing has a frame 1 on which a vertical sliding guide 2 is formed. Two pressure cylinders are arranged along the slide guide 2, a lower 3 with a piston 4 and an upper pressure cylinder 5 with a piston 6. The lower pressure cylinder 3 is shown free-standing, while the upper pressure cylinder 5 is fixed to the slide guide. Base parts 7 are arranged on the slide guide 2, in which lever-like movable parts 10 are mounted on pins 8, each of which carries a bearing 11 of a roller 12 or 13 at its ends. The rollers 12 located at the ends are preferably deflection compensation rollers, while the intermediate rollers 13 are hard or soft rollers in a known manner as required, which need to be reground periodically.

Die Bewegung des beweglichen Teiles 10 ist nach unten durch einen verstellbaren Anschlag 14 begrenzt, nach oben durch einen ebenfalls verstellbaren Anschlag 14ʹ. Der bewegliche Teil 10 steht unter dem Einfluß eines Kraftelementes 15, in diesem Falle einer Zylinder-Kolbenvorrichtung, die durch Zuleitungen 16, 17 mit einer Quelle von hydraulischem Druckmittel oder mit Druckgas geeigneten Druckes verbunden werden kann. Außerdem ist noch eine vertikale Gewindespindel 18 mit motorischem Antrieb 20 vorgesehen, auf welcher Einstellringe 21 aufgeschraubt sind, wobei jeder Ring einem Basisteil 7 zugeordnet ist. Die Einstellringe 21 bilden vertikal verstellbare Anschlagteile, auf welchen der entsprechende Basisteil jeweils im Betrieb aufliegt.The movement of the movable part 10 is limited downwards by an adjustable stop 14, upwards by an also adjustable stop 14ʹ. The movable part 10 is under the influence of a force element 15, in this case a cylinder-piston device, which can be connected by supply lines 16, 17 to a source of hydraulic pressure medium or a pressure of suitable pressure. In addition, a vertical threaded spindle 18 with a motor drive 20 is provided, on which adjusting rings 21 are screwed, each ring being assigned to a base part 7. The setting rings 21 form vertically adjustable stop parts on which the corresponding base part rests during operation.

In den Figuren 3, 4 und 5 sind verschiedene Ausführungsformen der Basisteile 7 mit dem beweglichen Teilen 10 dargestellt.FIGS. 3, 4 and 5 show different embodiments of the base parts 7 with the movable parts 10.

Die Figur 3 entspricht einer Vergrößerung der Ausführungsform nach den Figuren 1 und 2. Die Figur 4 zeigt eine Ausführungsform, bei welcher der Basisteil 7 vollständig vor dem Gerüst 1 liegt.FIG. 3 corresponds to an enlargement of the embodiment according to FIGS. 1 and 2. FIG. 4 shows an embodiment in which the base part 7 lies completely in front of the frame 1.

Bei beiden diesen Ausführungen nach Figur 3 und 4 befindet sich das Kraftelement 15 zwischen der durch den Zapfen 8 gegebenen Schwenkachse des beweglichen Teiles 10 und der Walzenlagerung 11 bzw. der Walzenachse A.In both of these versions according to FIGS. 3 and 4, the force element 15 is located between the pivot axis of the movable part 10 given by the pin 8 and the roller bearing 11 or the roller axis A.

Nach der Figur 5 hingegen hat der bewegliche Teil 10 die Form eines zweiarmigen Hebels, mit in seinem mittleren Bereich angeordneten Zapfen 8, wobei das Kraftelement 15 am von der Walzenlagerung 11 abgewandten Arm des Hebels angreift.According to FIG. 5, however, the movable part 10 has the shape of a two-armed lever, with pins 8 arranged in its central region, the force element 15 acting on the arm of the lever facing away from the roller bearing 11.

Im Betrieb, bei geschlossenem Kalander nach Figur 1, befinden sich die Walzen in der stellung, in welcher sie gegeneinander drücken und eine nicht dargestellte Materialbahn walzen. Die Einstellringe 21 sind auf der Gewindespindel 18 so eingestellt, daß die von ihnen gestützten Basisteile 7 in einer Lage sind, in welcher die beweglichen Teile 10 im wesentlichen horizontal verlaufen. Dabei entwickeln die Kraftelemente 15 eine nach oben gerichtete Kraft, welche die überhängenden Lasten, d.h. das Gewicht der Lagerungen 11 und eventueller an ihnen befestigter Teile ausgleicht. Dadurch werden die Walzen von Biegeeinflüssen dieser Lasten im wesentlichen freigehalten.In operation, with the calender closed according to FIG. 1, the rollers are in the position in which they press against one another and roll a material web (not shown). The adjusting rings 21 are set on the threaded spindle 18 so that the base parts 7 supported by them are in a position in which the movable parts 10 run essentially horizontally. The force elements 15 thereby develop an upward force, which the overhanging loads, i.e. balances the weight of the bearings 11 and any parts attached to them. As a result, the rollers are essentially kept free from the bending influences of these loads.

Wenn der Kalander geöffnet werden soll, werden der Anpresszylinder 3 und die Kraftelemente 15 kraftlos gemacht, wobei der Kolben 4 gesenkt wird und die beweglichen Teile 10 gegen ihre Anschläge 14 fallen. Dabei sind diese Anschläge so gestaffelt, daß die beweglichen Teile 10 auseinander bewegt werden. Diese Stellung ist in der Figur 2 dargestellt.When the calender is to be opened, the pressure cylinder 3 and the force elements 15 are rendered powerless, the piston 4 being lowered and the moving parts 10 falling against their stops 14. These stops are staggered so that the moving parts 10 are moved apart. This position is shown in Figure 2.

Es ist aber auch eine Öffnung des Kalanders nach oben möglich, die nicht dargestellt ist. In diesem Fall sind die Kraftelemente 15 zum Aufbringen einer das Gewicht der jeweiligen Walze übersteigenden Kraft dimensioniert. Es wird der obere Anpresszylinder 5 drucklos gemacht, wobei der Kolben 6 eingezogen wird. Gleichzeitig werden die Kraftelemente 15 durch die Zuführleitung 17 einem höheren Druck ausgesetzt, als welcher zur Kompensation der überhängenden Lasten erforderlich ist, so daß sie gegen die oberen Anschläge 14ʹ stoßen. Es erfolgt wieder eine gestaffelte Öffnung der einzelnen beweglichen Teile 10 und damit der Walzen 12, 13, die in der Figur 2 dargestellt ist.However, it is also possible to open the calender upwards, which is not shown. In this case, the force elements 15 are dimensioned for applying a force that exceeds the weight of the respective roller. The upper pressure cylinder 5 is depressurized, the piston 6 being drawn in. At the same time, the force elements 15 are exposed to a higher pressure through the feed line 17 than what is required to compensate for the overhanging loads, so that they abut the upper stops 14 '. There is again a staggered opening of the individual movable parts 10 and thus of the rollers 12, 13, which is shown in FIG. 2.

Bei einer Ersteinstellung oder wenn nach einem Nachschleifen der Walzen die Basisteile 7 nachgestellt werden sollen, können im Prinzip die Einstellringe 21 von Hand auf die richtige Höhe gebracht werden.In the case of an initial setting or if the base parts 7 are to be readjusted after regrinding of the rollers, the adjusting rings 21 can in principle be brought to the correct height by hand.

Vorzugsweise kann jedoch die Gewindespindel 18 motorisch angetrieben werden, wobei die Einstellringe 21, auf welchen die Basisteile 7 aufliegen, durch Reibung oder durch eine äußere Vorrichtung festgehalten werden und sich mit der Gewindespindel 18 nicht drehen können. Sie werden daher entlang der Gewindespindel entweder abwärts oder aufwärts bewegt.However, the threaded spindle 18 can preferably be driven by a motor, the adjusting rings 21, on which the base parts 7 rest, being held in place by friction or by an external device and being unable to rotate with the threaded spindle 18. They are therefore moved either downwards or upwards along the threaded spindle.

Wenn ein Einstellring nicht verstellt werden soll oder nicht mehr, da er seine gewünschte Stellung erreicht hat, wird die Kraftwirkung seines Kraftelementes 15 umgekehrt, d.h., daß das Druckmittel in der Figur 1 durch die Leitung 16 anstatt durch die Leitung 17 zugeführt wird. Dadurch wird der betreffende Basisteil 7 geringfügig vom Einstellring 21 abgehoben. Dabei wird der Einstellring 21 entlastet, dreht sich frei mit der Gewindespindel 18, und die axiale Bewegung unterbleibt.Die Vorrichtung kann aber auch so gestaltet und eingestellt sein, daß sich bei einer Anhebung der aufeinander abgestützten Walzen 12, 13 , z.B. durch den Kolben 4, das bewegliche Teil 10 an dem oberen Anschlag 14ʹ abstützt und das Basisteil nach oben bewegt. Auch dabei wird der Einstellring 21 entlastet.If an adjusting ring is not to be adjusted or no longer because it has reached its desired position, the force effect of its force element 15 is reversed, ie the pressure medium in FIG. 1 is supplied through line 16 instead of line 17. As a result, the relevant base part 7 is slightly lifted off the adjusting ring 21. The setting ring 21 is relieved, rotates freely with the threaded spindle 18, and the axial movement does not occur. However, the device can also be designed and adjusted such that when the rollers 12, 13 supported on one another are raised, for example by the piston 4 , The movable part 10 is supported on the upper stop 14ʹ and moves the base part upwards. Here too, the adjusting ring 21 relieved.

Es versteht sich, daß die dargestellten Ausführungen nur Beispiele sind und in verschiedener Weise abgeändert werden können.It is understood that the versions shown are only examples and can be modified in various ways.

So kann z.B. die Gleitführung 2 der Basisteile 7 durch Parallellenker oder eine ähnliche Hebelanordnung ersetzt werden.For example, the sliding guide 2 of the base parts 7 are replaced by parallel links or a similar lever arrangement.

Die Fixierung der Basisteile kann durch Seilzüge oder Ketten erfolgen, die über Rollen oder Ritzel verstellt werden können. Auch ist ein entlang einer vertikalen Zahnstange oder Kette bewegliches Getriebe denkbar.The base parts can be fixed using cables or chains that can be adjusted using rollers or pinions. A gear movable along a vertical rack or chain is also conceivable.

Die Anschläge 14, 14ʹ, können durch hydraulische Anschläge ersetzt und mit dem Kraftelement kombiniert sein, wie in der deutschen Patentanmeldung 36 40 161 beschrieben. Dabei kann die Öffnungsgeschwindigkeit der einzelnen Walzen bezüglich der Größe wie auch des Verlaufes z.B. durch Drosseln steuerbar sein, so daß z.B. hartes Anschlagen vermieden wird.The stops 14, 14ʹ, can be replaced by hydraulic stops and combined with the force element, as described in German patent application 36 40 161. The opening speed of the individual rollers in terms of size as well as the course can e.g. can be controlled by throttles, so that e.g. hard hitting is avoided.

Auch braucht das Kraftelement 15 nicht eine Zylinder-Kolbenvorrichtung zu sein, sondern z.B. eine Druckkammer aus elastischem Material nach der Art eines Balges. Auch magnetische oder mechanische Elemente z.B. Federn sind denkbar.The force element 15 also need not be a cylinder-piston device, but e.g. a pressure chamber made of elastic material like a bellows. Also magnetic or mechanical elements e.g. Feathers are conceivable.

Claims (13)

1. Vorrichtung zur Führung der Walzen (12, 13) eines im wesentlichen vertikalen Kalanders, wobei zur Kompensation überhängender Lasten an jedem Walzenende einer Walze (12, 13), ein die Walzenlagerung (11) enthaltender beweglicher hebelartiger Teil (10) vorgesehen ist, welcher im wesentlichen vertikal schwenkbar ist, wobei die Schwenkachse parallel zur Achse (A) der Walze verläuft, und auf welchen ein Kraftelement (15) einwirkt, welches in der Lage ist, die zum Kompensieren der überhängenden Lasten nötige Kraft aufzubringen und gegebenenfalls diese Kraft nicht mehr wirken zu lassen, damit die Walze (12, 13) abgesenkt werden kann, dadurch gekennzeichnet, daß jedem Walzenende ein am Gerüst (1) des Kalanders vertikal verstellbarer, in der eingestellten Lage fixierbarer Basisteil (7) zugeordnet ist, in welchem der bewegliche Teil (10), auf welchem sich die Lagerung (11) des Walzenendes befindet, seine schwenkbare Lagerstelle (8) hat, wobei das Kraftelement (15) zwischen dem Basisteil (7) und dem beweglichen Teil (10) angeordnet ist.1. Device for guiding the rollers (12, 13) of a substantially vertical calender, wherein a movable lever-like part (10) containing the roller bearing (11) is provided at each roller end of a roller (12, 13) to compensate for overhanging loads, which is essentially vertically pivotable, the pivot axis running parallel to the axis (A) of the roller, and on which acts a force element (15) which is capable of applying the force necessary to compensate for the overhanging loads and, if appropriate, not this force to let more work so that the roller (12, 13) can be lowered, characterized in that each roller end is assigned a base part (7) which is vertically adjustable on the stand (1) of the calender and fixable in the set position, in which the movable part Part (10), on which the bearing (11) of the roller end is located, has its pivotable bearing point (8), the force element (15) between the base part (7) and d the movable part (10) is arranged. 2. Vorrichtung nach Patentanspruch 1, dadurch gekennzeichnet, daß der Basisteil (7) in einer Gleitführung (2) am Gerüst (1) des Kalanders im wesentlichen vertikal geführt ist.2. Device according to claim 1, characterized in that the base part (7) in a sliding guide (2) on the frame (1) of the calender is guided substantially vertically. 3. Vorrichtung nach Patentanspruch 1 oder 2, dadurch gekennzeichnet, daß die Fixierung des Basisteils (7) mittels einer verstellbaren Positioniervorrichtung (18, 21) erfolgt.3. Device according to claim 1 or 2, characterized in that the fixing of the base part (7) by means of an adjustable positioning device (18, 21). 4. Vorrichtung nach Patentanspruch 1 oder 3, dadurch gekennzeichnet, daß die Fixierung des Basisteiles (7) mittels eines Einstellringes (21) erfolgt, welcher an einer vertikalen Gewindespindel (18) aufgeschraubt ist, auf welchem der Basisteil (7) aufliegt.4. Device according to claim 1 or 3, characterized in that the The base part (7) is fixed by means of an adjusting ring (21) which is screwed onto a vertical threaded spindle (18) on which the base part (7) rests. 5. Vorrichtung nach Patentanspruch 4, dadurch gekennzeichnet, daß die Gewindespindel (18) motorisch (20) drehbar ist.5. Device according to claim 4, characterized in that the threaded spindle (18) is rotatable by motor (20). 6. Vorrichtung nach Patentanspruch 1, dadurch gekennzeichnet, daß die relative Beweglichkeit zwischen dem Basisteil (7) und dem beweglichen Teil (10) so eingeschränkt ist, daß dadurch die Bewegung der Walze (12, 13) nach unten begrenzt werden kann und/oder daß die Bewegung der Walze (12, 13) nach oben zur Mitnahme des Basisteiles (7) führen kann.6. The device according to claim 1, characterized in that the relative mobility between the base part (7) and the movable part (10) is limited so that the movement of the roller (12, 13) can be limited downwards and / or that the movement of the roller (12, 13) upwards can lead to the entrainment of the base part (7). 7. Vorrichtung nach Patentanspruch 6, dadurch gekennzeichnet, daß die relative Beweglichkeit durch eine oder zwei verstellbare Anschläge (14, 14ʹ) am Basisteil (7) eingeschränkt wird.7. The device according to claim 6, characterized in that the relative mobility is limited by one or two adjustable stops (14, 14ʹ) on the base part (7). 8. Vorrichtung nach Patentanspruch 7, dadurch gekennzeichnet,daß das Kraftelement (15) zum Aufbringen einer das Gewicht der Walze (12, 13) übersteigenden Kraft dimensioniert ist, und daß der zwischen dem Basisteil (7) und dem beweglichen Teil (10) angeordnete verstellbare Anschlag (14ʹ) die Bewegung des beweglichen Teiles (10) bei einem Abheben der Walze (12, 13) nach oben begrenzt.8. The device according to claim 7, characterized in that the force element (15) is dimensioned for applying a force exceeding the weight of the roller (12, 13), and that the one arranged between the base part (7) and the movable part (10) adjustable stop (14ʹ) limits the movement of the movable part (10) when lifting the roller (12, 13) upwards. 9. Vorrichtung nach Patentanspruch 1, dadurch gekennzeichnet, daß der bewegliche Teil (10) die Form eines einarmigen Hebels hat, wobei das Kraftelement (15) zwischen der Drehachse (8) und der Walzenlagerung (11) angreift (Fig. 3,4).9. The device according to claim 1, characterized in that the movable part (10) has the shape of a one-armed lever, the force element (15) acting between the axis of rotation (8) and the roller bearing (11) (Fig. 3,4) . 10. Vorrichtung nach Patentanspruch 1, dadurch gekennzeichnet, daß der bewegliche Teil (10) die Form eines zweiarmigen Hebels hat, wobei das Kraftelement (15) am von der Walzenlagerung (11) abgewandten Arm des Hebels angreift (Fig. 5).10. The device according to claim 1, characterized in that the movable Part (10) has the shape of a two-armed lever, the force element (15) acting on the arm of the lever facing away from the roller bearing (11) (FIG. 5). 11. Vorrichtung nach einem der vorangehanden Patentansprüche, dadurch gekennzeichnet, daß das Kraftelement (15) eine Zylinder-Kolbenvorrichtung ist, die mit hydraulischem oder gasförmigem Medium geeigneter Drücke beaufschlagbar ist.11. Device according to one of the preceding claims, characterized in that the force element (15) is a cylinder-piston device which can be acted upon by suitable pressures with hydraulic or gaseous medium. 12. Vorrichtung nach einem der vorangehanden Patentansprüche, dadurch gekennzeichnet, daß das Kraftelement (15) so gestaltet ist, daß die damit erzeugte Kraft mindestens die bei geschlossenem Kalander auf den Einstellring (21) wirkenden Gewichtskräfte aufnehmen kann, wodurch das Basisteil (7) zur Vermeidung einer ungewollten Verstellung des Einstellrings (21) bei einer Drehung der Gewindespindel (18) vom Einstellring (21) abgehoben werden kann.12. Device according to one of the preceding claims, characterized in that the force element (15) is designed so that the force thus generated can absorb at least the weight forces acting on the adjusting ring (21) when the calender is closed, whereby the base part (7) for Avoiding an unintentional adjustment of the adjusting ring (21) when the threaded spindle (18) rotates from the adjusting ring (21). 13. Vorrichtung nach Patentanspruch 12, dadurch gekennzeichnet, daß das Kraftelement (15) eine beidseitig druckbeaufschlagbare Zylinder-Kolbenvorrichtung ist, dessen Kraftrichtung zur Aufnahme der bei geschlossenem Kalander auf den Einstellring (21) wirkenden Gewichtskräfte umgekehrt im Vergleich zur Kompensation der überhängenden Lasten ist.13. The apparatus according to claim 12, characterized in that the force element (15) is a cylinder piston device which can be pressurized on both sides, the direction of the force thereof for receiving the weight forces acting on the adjusting ring (21) when the calender is closed is reversed in comparison to the compensation of the overhanging loads.
EP88104921A 1987-04-03 1988-03-26 Device for guiding the rolls of an essentially vertical calender Expired - Lifetime EP0285942B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88104921T ATE63342T1 (en) 1987-04-03 1988-03-26 DEVICE FOR GUIDING THE ROLLERS OF A SUBSTANTIALLY VERTICAL CALENDER.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3711334 1987-04-03
DE19873711334 DE3711334A1 (en) 1987-04-03 1987-04-03 DEVICE FOR GUIDING THE ROLLS OF AN ESSENTIAL VERTICAL CALANDER

Publications (2)

Publication Number Publication Date
EP0285942A1 true EP0285942A1 (en) 1988-10-12
EP0285942B1 EP0285942B1 (en) 1991-05-08

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ID=6324838

Family Applications (1)

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EP88104921A Expired - Lifetime EP0285942B1 (en) 1987-04-03 1988-03-26 Device for guiding the rolls of an essentially vertical calender

Country Status (8)

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US (1) US4890551A (en)
EP (1) EP0285942B1 (en)
JP (1) JP2633616B2 (en)
AT (1) ATE63342T1 (en)
CA (1) CA1297276C (en)
DE (2) DE3711334A1 (en)
ES (1) ES2022504B3 (en)
FI (1) FI880785A (en)

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FR2642447A1 (en) * 1989-01-27 1990-08-03 Valmet Paper Machinery Inc CALENDER, ESPECIALLY SUPERCALANDER
EP0425138A2 (en) * 1989-10-25 1991-05-02 Valmet-Karhula Inc. Actuator of module construction for rolls of a machine calender
EP0498045A1 (en) * 1991-02-07 1992-08-12 Sulzer-Escher Wyss Gmbh Device for roll height adjustment
DE4202047A1 (en) * 1992-01-27 1993-07-29 Escher Wyss Gmbh Roller line force correction - applies controlled forces to axes of intermediate rollers
US5655442A (en) * 1995-03-09 1997-08-12 Voith Sulzer Finishing Gmbh Calender for the treatment of a paper web

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DE3735243A1 (en) * 1987-10-17 1989-04-27 Escher Wyss Gmbh DEVICE FOR NEUTRALIZING OVERLOAD LOADS
DE3936048A1 (en) * 1989-10-28 1991-05-02 Escher Wyss Gmbh METHOD FOR POSITIONING CALANDER ROLLS AND CALANDER FOR IMPLEMENTING THE METHOD
DE4314670C2 (en) * 1993-05-04 1996-02-01 Kleinewefers Gmbh calender
DE19508350C1 (en) * 1995-03-09 1996-04-04 Voith Sulzer Finishing Gmbh Calender for surface treatment of paper and cardboard with stack of rolls
DE19508352B4 (en) * 1995-03-09 2005-07-21 Voith Paper Patent Gmbh Calender for the treatment of a paper web
DE19520109C1 (en) * 1995-06-01 1996-06-13 Voith Sulzer Finishing Gmbh Calender for total or part satinising avoiding uncontrolled friction
FI107626B (en) * 1996-05-06 2001-09-14 Metso Paper Inc Method of rapidly opening the roll system in a calender, especially super calender and a hydraulic system for the rolling system of a calender, especially super calender
DE19711241C2 (en) * 1997-03-18 2002-08-29 Voith Paper Patent Gmbh Calender for paper and similar web material
US20030126998A1 (en) * 1998-03-17 2003-07-10 Eduard Kusters Maschinenfabrik Gmbh & Co. Kg Calender arrangement
DE19811474A1 (en) * 1998-03-17 1999-09-23 Kuesters Eduard Maschf Vertical arrangement of glazing rollers employed in paper manufacture
US7096779B2 (en) 1998-03-17 2006-08-29 Eduard Küsters Maschinenfabrik GmbH & Co. KG Calender arrangement
DE19820087B4 (en) * 1998-05-06 2005-06-23 Eduard Küsters Maschinenfabrik GmbH & Co. KG Calender for the treatment of a web
DE19832214C1 (en) * 1998-07-17 1999-11-11 Voith Sulzer Papiertech Patent Stacked-roller calendar including lower, flexurally-compensated roller
DE19945780C1 (en) * 1999-09-24 2001-01-18 Voith Paper Patent Gmbh Mounting support for the intermediate roller in a calender assembly for finishing paper/cardboard webs has an overload safety system triggered by a breach of a set force threshold value
US6612228B1 (en) * 2000-07-14 2003-09-02 Metso Paper, Inc. Calender and method for rebuilding a calender
EP1243694B1 (en) * 2001-03-22 2004-07-07 Eduard Küsters Maschinenfabrik GmbH & Co. KG Calender
FI5264U1 (en) * 2001-11-06 2002-02-28 Metso Paper Inc Arrangements for opening and closing a roller pin in a shoe calendar

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FR2642447A1 (en) * 1989-01-27 1990-08-03 Valmet Paper Machinery Inc CALENDER, ESPECIALLY SUPERCALANDER
AT400858B (en) * 1989-01-27 1996-04-25 Valmet Paper Machinery Inc CALENDAR, SPECIALLY SUPER CALENDAR
EP0425138A2 (en) * 1989-10-25 1991-05-02 Valmet-Karhula Inc. Actuator of module construction for rolls of a machine calender
EP0425138A3 (en) * 1989-10-25 1991-10-23 Valmet-Karhula Inc. Actuator of module construction for rolls of a machine calender
EP0498045A1 (en) * 1991-02-07 1992-08-12 Sulzer-Escher Wyss Gmbh Device for roll height adjustment
US5231924A (en) * 1991-02-07 1993-08-03 Sulzer-Escher Wyss Gmbh Apparatus for the vertical adjustment of rolls
DE4202047A1 (en) * 1992-01-27 1993-07-29 Escher Wyss Gmbh Roller line force correction - applies controlled forces to axes of intermediate rollers
US5655442A (en) * 1995-03-09 1997-08-12 Voith Sulzer Finishing Gmbh Calender for the treatment of a paper web

Also Published As

Publication number Publication date
FI880785A (en) 1988-10-04
DE3711334A1 (en) 1988-10-13
ES2022504B3 (en) 1991-12-01
JPS63256792A (en) 1988-10-24
JP2633616B2 (en) 1997-07-23
DE3862669D1 (en) 1991-06-13
CA1297276C (en) 1992-03-17
EP0285942B1 (en) 1991-05-08
FI880785A0 (en) 1988-02-19
US4890551A (en) 1990-01-02
ATE63342T1 (en) 1991-05-15

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