EP0230563B1 - Vorrichtung zum zueinander Positionieren von Walzenflächen - Google Patents

Vorrichtung zum zueinander Positionieren von Walzenflächen Download PDF

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Publication number
EP0230563B1
EP0230563B1 EP86116695A EP86116695A EP0230563B1 EP 0230563 B1 EP0230563 B1 EP 0230563B1 EP 86116695 A EP86116695 A EP 86116695A EP 86116695 A EP86116695 A EP 86116695A EP 0230563 B1 EP0230563 B1 EP 0230563B1
Authority
EP
European Patent Office
Prior art keywords
piston
pressure
pressure chamber
roller
servo motor
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
EP86116695A
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German (de)
English (en)
French (fr)
Other versions
EP0230563A1 (de
Inventor
Wolf-Gunter Stotz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sulzer Escher Wyss GmbH
Original Assignee
Sulzer Escher Wyss GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sulzer Escher Wyss GmbH filed Critical Sulzer Escher Wyss GmbH
Priority to AT86116695T priority Critical patent/ATE50608T1/de
Publication of EP0230563A1 publication Critical patent/EP0230563A1/de
Application granted granted Critical
Publication of EP0230563B1 publication Critical patent/EP0230563B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • D21G1/002—Opening or closing mechanisms; Regulating the pressure

Definitions

  • the invention relates to a device for positioning roller surfaces of rollers, in particular intermediate rollers in a calender, which lift the roller surface, to relieve it, to lower it from a working position into another desired position and to hold it, for which purpose on both sides of the roller Actuators with pistons and cylinders to which hydraulic pressure medium can be applied are provided, to which regulating devices are assigned, which are arranged between a pressure source, the pressure chamber of the servomotor and a container for the pressure medium.
  • such a device is used to quickly remove the roller surfaces from one another via a defined path and to relieve the load in order to compensate for undesired weights, including the so-called edge loads on the individual roller.
  • the so-called deflection adjustment rollers such as. B. developed the NIPCO rollers (registered trademark) with which the desired line forces can be set in the contact points, even different zones across the web width.
  • the deflection adjustment rolls are also used successfully in multi-roll calenders for finishing the paper webs, e.g. B. as the bottom and / or the top roller and possibly also a middle roller of the roll package of the calender.
  • deflection adjustment rollers have a stationary support, around which a roller jacket is rotatably arranged. In between, adjustable support elements are provided so that the jacket can change its position to the wearer and z. B. is freely movable in the pressing direction.
  • a construction already known from the German specification DE-A-1 184 621 relates to a pressure generating system for roll calenders with a fixed counter roll and a hydraulically loaded work roll.
  • the working pressure is controlled by a hydraulic-pneumatic double-piston pressure intensifier. This enables the contact pressure to be regulated independently of the position of the work roll. It is also described that the movement of the work roll relative to the counter roll can be limited by creating an oil compensation volume in the hydraulic system. However, these elements are not sufficient to e.g. B. to solve the problem of edge weights.
  • Such adhesive devices also often serve as a simultaneous device for lifting a roller, especially if a roller of larger diameter is to be installed in place of a roller of smaller diameter.
  • the device should be able to absorb the so-called marginal loads for compensation.
  • the device should use simple, proven components and should be easy and reliable to adjust.
  • each servomotor is arranged between the respective roller surface and an associated frame, that each regulating device has means for applying different pressure to the pressure chamber up to the maximum pressure of the pressure source and for regulating the discharge of the medium from the pressure chamber until it stops has a preselected residual volume of the medium in the pressure chamber, so that the lowering path of the roller surface is automatically always of the same size from any working position currently occupied into the lowered position to be held.
  • the device uses known, proven components.
  • the regulating device specified in the further patent claims and preferably to be used also uses known elements and is simple to understand and works reliably.
  • the lowering path remains with changing Arbe i ts of the roll face automatically position the same length.
  • the device is described using an example where the work surfaces are roll surfaces 1 of seven work rolls arranged in a calender 2.
  • the work surfaces i.e. the individual rollers are lifted, relieved, lowered or held in a desired position when the lowest roller surface is lowered. Furthermore, it is possible with the device to remove the individual rollers from one another upwards. When the individual roller is relieved, the so-called edge loads, as described above, are also absorbed and counteracted with a force against the effects of the edge loads on the deformation of the respective roller.
  • a main component of the device is a hydraulic servomotor 3 with a piston 4 and a cylinder 5, which is arranged on the frame 6 at both ends of the respective roller.
  • the servomotor 3 is provided between the respective roller surface 1 and its associated frame 6.
  • the device can only be seen from one side.
  • a reflection of it also results from the opposite side of the calender.
  • Each servomotor 3 is assigned a regulating device 7 which, as can be seen particularly in FIGS. 4, 5 and 6, is provided between a pressure source 8, the pressure chamber 9 of the servomotor 3 and a container 10 for the hydraulic medium.
  • this regulating device 7 it is possible to apply different pressure of the hydraulic medium to the pressure chamber 9 up to the maximum pressure which can be taken from the pressure source 8.
  • three deflection adjustment rolls 12 1 , 12 2 and 12 3 are arranged with roll sleeves which are freely movable in the pressing direction, the roll 12 being the lowest, the roll 12 1 the top and the roll 12 2 being in the middle of the roll pack arranged.
  • FIG. 1 In the calender shown in FIG. 1 is a z. B. from DE-OS-3 004 657.2 known regulating device, which enables the whole roll package to take a stable position, whereby and then always with changing diameters of the individual rollers between the individual rollers, the desired workers be achieved.
  • the roll surfaces are the surfaces of the roll bales 15, whose pins 16 are mounted on one end of a lever 17.
  • the other end of the lever 17 is pivotally attached to the frame. This pivoting movement enables the roller to move substantially in the vertical direction.
  • the deflection adjustment rollers 12 are each mounted on a fixed, standing frame part 14.
  • the carrier 13 of the deflection compensation roller 12 is immovably mounted relative to the frame 6, the servomotor 3 is arranged between the roller shell 11 and the stationary carrier 13. This arrangement can be seen in FIGS. 2 and 3.
  • the servomotor 3 can move the roller jacket 11 in the vertical direction with respect to the carrier 13 and that also means with respect to the other rollers of the roller package of the calender and also relieve the pressure on the roller jacket in the region of its ends.
  • the servomotor 3 is on the one hand, i.e. e.g. B. with the cylinder on the lever 17 with bolt 41 and on the other hand with its piston rod 40 attached to the frame 6, in this case by means of a bolt 42 to a support member 18 which is itself immovably attached to the frame 6.
  • roller package with the other rollers guided by means of the lever 17 has the essential advantage that a possible edge and pinching of the individual rollers to the frame 6 is prevented, as was often the case with the earlier designs.
  • Clamping is understood to be the clamping of the roller or its slide guide during its vertical movement.
  • a calender in which no deflection adjustment rollers are used. All rollers are conventional rollers with roller balls and pins 16. The pins of the top roller are mounted in the frame part 14 fastened to the frame 6. The bottom roll can be lifted by means of a key i TiO n istsmotors 46 with piston 44 in the pressure chamber 45, or be lowered. The rollers between the top and bottom rollers are supported in supports 14 1 , which have a slide part 14 2 , which is vertically displaceable in the slide guide 43 to the frame. The servomotor 3 is supported on the one hand on the support 14 and on the other hand on the frame 6 on the support part 18.
  • the lifting process is shown in FIG. 4: If the solenoid valve 19 is in a first position, which is shown in FIG. 4, the full pressure flows into the pressure chamber 9 of the servomotor 3 from the pressure source 8 through the line 20, valve channel 19 1 and further through the second solenoid valve 23 through its channels 24.
  • FIG. 5 shows the relief, in technical terms the nip relieving: If you want to apply a reduced pressure to the pressure chamber 9, you move the first solenoid valve 19 into a second position, which is shown in FIG. 5. The pressure from the pressure source 8 is reduced to a desired level in the reduction valve 22 and the pressure medium continues to flow through the line 21 and through the now open channel 19 2 of the first solenoid valve 19 through the paths 24 1 and 24 2 in the second solenoid valve 23 in the pressure chamber 9.
  • This reduced pressure which is set by means of the reduction valve 22, is just so high that its effect in the pressure chamber z. B. to record the overhanging weights or marginal loads mentioned, or to counteract them.
  • FIGS. 4-9 Such a hydraulic stop is shown in FIGS. 4-9 in examples.
  • a cylinder piston unit 26 is provided, where a piston 27 delimits two cylinder spaces 28 and 29 from one another.
  • This unit 26 is connected in parallel to the line 30, which leads to the pressure chamber 9 of the servomotor 3.
  • the parallel connection is made with respect to the pressure space 28 of the unit by means of the line 30 1 and with respect to the pressure space 29 by means of a line 30 2 .
  • the parallel-connected cylinder-piston unit 26 is the element that enables the individual roller to automatically take up the position because the pressure is the same on both sides of the piston 27, even when the position of the piston 4 is changed.
  • a stop 36 is provided on the piston rod 32.
  • the piston rod protrudes from the unit 26 through the end wall 35 and is provided with an adjustable stop 36. By moving this stop 36, the path of the piston 27 away from the stop on the end face 35 can be limited as desired.
  • the hydraulic stop specified above is thus constructed and a desired residual volume can be held in the pressure chamber 9 of the servomotor.
  • the outflow of the pressure medium from the space 28 of the unit 26 can be throttled. This can be achieved by means of a throttle device 39 which is arranged in the discharge path from the pressure chamber 9 or 28 and which is adjustable as a function of time or as a function of the stroke of the piston 27.
  • a throttle device (not shown) can be arranged for damping vibrations or flutter in the system between the pressure chamber 9 of the servomotor and the pressure source 8.
  • the hydraulic system shown bleeds itself automatically.
  • the connections to the individual pressure chambers 9 of the servo motor 3 and 28 and 29 of the cylinder-piston unit are each provided at the top of the relevant space.
  • the container 10, which is open to the atmosphere, is arranged at the top of the system and is provided with an overflow 10 1 for connection to the pressure source.
  • the cylinder-piston unit 26 is shown as a separate component, which must be connected to the solenoid valve 23 by lines as well as to the pressure chamber 9.
  • a servomotor 3 integrated with the cylinder piston unit is also proposed. Such is shown in Figure 7.
  • the pressure chamber 9 of the servomotor and the pressure chambers 28 and 29 of the cylinder piston unit are accommodated in a common cylinder 5 of the servomotor 3, so that the pressure chamber 9 passes directly into the pressure chamber 29 and not via lines, as described above for the cylinder piston unit 26.
  • a stop 31 is provided, at which the piston 27 is to come to rest.
  • the piston 27 is additionally loaded in this case by means of a spring 37, which is arranged in the pressure chamber 28, so that the piston is always moved to the stop 31, even if the pressure of the pressure medium on both sides of the piston 27 is the same.
  • the path of the piston 27 away from the stop 31 can be limited, for example, by an adjustable set screw 38 which is directed against the side 34 of the piston 27 which is additionally loaded with the spring 37.
  • the function of this servomotor 3 integrated with the unit 26 is same as described above with Figures 4-6.
  • the pressure chamber 9 is connected to the line 30 to which the line 30 'is connected, which leads into the pressure chamber 28.
  • FIG. 8 shows a cylinder piston unit 26 which differs from the units shown in FIGS. 4, 5 and 6 by the arrangement of the stop.
  • the stop is now not housed on the piston rod 32, but is realized by means of an adjusting screw 38 1 , which is directed against the surface of the piston 27 inclined towards the pressure chamber 28.
  • FIG. 9 shows another embodiment of the cylinder-piston unit which has no piston rod on the piston 27.
  • the piston 27 is pressed against the stop 31 here by means of a compression spring 37.
  • the invention is by no means limited only to the subjects of the exemplary embodiments shown and described for their explanation. This also applies to the subject of the regulating device 7, which can also be used with other, e.g. B. electronically controlled means and other valve combinations is conceivable.
  • This device for positioning roller surfaces in a calender would also be applicable in those pressing devices where not only cylindrical, but also flat or corrugated pressing surfaces, which are pressed against one another for the treatment of a good, and are arranged one above the other in several floors, for example, be used.

Landscapes

  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Paper (AREA)
  • Check Valves (AREA)
  • Self-Closing Valves And Venting Or Aerating Valves (AREA)
  • Soil Working Implements (AREA)
  • Rolls And Other Rotary Bodies (AREA)
EP86116695A 1985-12-23 1986-12-01 Vorrichtung zum zueinander Positionieren von Walzenflächen Expired - Lifetime EP0230563B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86116695T ATE50608T1 (de) 1985-12-23 1986-12-01 Vorrichtung zum zueinander positionieren von walzenflaechen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH549285 1985-12-23
CH5492/85 1985-12-23

Publications (2)

Publication Number Publication Date
EP0230563A1 EP0230563A1 (de) 1987-08-05
EP0230563B1 true EP0230563B1 (de) 1990-02-28

Family

ID=4294496

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86116695A Expired - Lifetime EP0230563B1 (de) 1985-12-23 1986-12-01 Vorrichtung zum zueinander Positionieren von Walzenflächen

Country Status (7)

Country Link
US (1) US4736678A (enrdf_load_stackoverflow)
EP (1) EP0230563B1 (enrdf_load_stackoverflow)
JP (1) JPS62156385A (enrdf_load_stackoverflow)
AT (1) ATE50608T1 (enrdf_load_stackoverflow)
CA (1) CA1262418A (enrdf_load_stackoverflow)
DE (2) DE3640161A1 (enrdf_load_stackoverflow)
FI (1) FI86091C (enrdf_load_stackoverflow)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3702245C3 (de) * 1987-01-27 1993-12-23 Kleinewefers Gmbh Kalander
DE3711334A1 (de) * 1987-04-03 1988-10-13 Escher Wyss Gmbh Vorrichtung zur fuehrung der walzen eines im wesentlichen vertikalen kalanders
DE3713560A1 (de) * 1987-04-23 1988-11-03 Escher Wyss Gmbh Kalander mit verschiebbaren lagerteilen
DE3713561A1 (de) * 1987-04-23 1988-11-10 Escher Wyss Gmbh Kalander mit niprelieving
DE8801758U1 (de) * 1987-08-28 1988-05-05 Sulzer-Escher Wyss AG, Zürich Druckwalze
DE3735243A1 (de) * 1987-10-17 1989-04-27 Escher Wyss Gmbh Vorrichtung zum neutralisieren von ueberhanglasten
DE3803490A1 (de) * 1988-02-05 1989-08-17 Rexroth Mannesmann Gmbh Sicherheitsanordnung fuer stellzylinder, insbesondere fuer kalander mit verstellbaren walzen
DE3936048A1 (de) * 1989-10-28 1991-05-02 Escher Wyss Gmbh Verfahren zum positionieren von kalanderwalzen sowie kalander zur ausfuehrung des verfahrens
DE3936128A1 (de) * 1989-10-30 1991-05-02 Escher Wyss Gmbh Kalander zur oberflaechenbearbeitung von materialbahnen
CH683606A5 (fr) * 1990-04-26 1994-04-15 Bobst Sa Dispositif avec vérin à précontrainte de contrôle de la pression de travail entre deux cylindres rotatifs coatifs dans une machine de traitement de matière en bande.
US5165266A (en) * 1991-11-04 1992-11-24 International Rolling Mill Consultants, Inc. Chockless roll support system
DE29521610U1 (de) * 1995-03-09 1997-11-20 Voith Sulzer Finishing GmbH, 47803 Krefeld Kalander für die Behandlung einer Papierbahn
DE19511145C2 (de) * 1995-03-27 2000-07-13 Voith Sulzer Finishing Gmbh Kalander für die zweiseitige Papierbehandlung
US5743177A (en) * 1996-02-29 1998-04-28 Union Camp Corporation Enhanced cross-directional caliper control system
FI107626B (fi) * 1996-05-06 2001-09-14 Metso Paper Inc Menetelmä kalanterin, etenkin superkalanterin telaston pika-avauksessa ja hydraulijärjestelmä kalanterin, etenkin superkalanterin telastoa varten
DE19757472C2 (de) * 1997-12-23 2000-09-07 Voith Sulzer Papiermasch Gmbh Kalander für eine Bahn, insbesondere Papierbahn
DE19800331A1 (de) * 1998-01-08 1999-07-15 Voith Sulzer Papiertech Patent Papierkalander und Verfahren zu dessen Betrieb
US20030126998A1 (en) * 1998-03-17 2003-07-10 Eduard Kusters Maschinenfabrik Gmbh & Co. Kg Calender arrangement
US7096779B2 (en) 1998-03-17 2006-08-29 Eduard Küsters Maschinenfabrik GmbH & Co. KG Calender arrangement
DE19820089C2 (de) * 1998-05-06 2000-06-15 Kuesters Eduard Maschf Verfahren zum Kalandrieren einer Warenbahn mit einem vertikalen Mehrwalzen-Kalander
DE19963944C1 (de) * 1999-12-31 2001-06-13 Koenig & Bauer Ag Verfahren zum Einstellen einer Walze einer Druckmaschine
DE10010772C1 (de) * 2000-03-04 2001-05-10 Voith Paper Patent Gmbh Kalander
FI116855B (fi) * 2002-06-06 2006-03-15 Metso Paper Inc Järjestely telanippien sulkemiseksi
FI5496U1 (fi) * 2002-06-10 2002-08-28 Metso Paper Inc Moninippikalanterin kevennyssylinterirakenne
DE102007047658A1 (de) 2007-10-05 2009-04-09 Hte Ag The High Throughput Experimentation Company Parallelreaktor mit Anpressverschluss
FI121933B (fi) * 2007-12-03 2011-06-15 Metso Paper Inc Menetelmä ja hydrauliikkasovitelma monitelakalanterin telaston avaamiseksi

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1184621B (de) * 1962-11-03 1964-12-31 Jean Hiedemann Fa Druckgebungssystem fuer Walzenkalander, insbesondere zum Praegen von Papier, Pappe od. dgl.
US3331313A (en) * 1965-09-24 1967-07-18 Black Clawson Co Calender stacks having transverse pressure sensing and adjustment means
US3611917A (en) * 1967-06-09 1971-10-12 Dominion Eng Works Ltd Calender stack with swimming roll
US3654833A (en) * 1970-06-29 1972-04-11 Eaton Yale & Towne Hydraulic control circuit
US3777656A (en) * 1972-02-17 1973-12-11 Bruderhaus Maschinen Gmbh Calender and method of operating the same
DE2943644A1 (de) * 1979-10-29 1981-05-07 Küsters, Eduard, 4150 Krefeld Walzenanordnung zur druckbehandlung von warenbahnen
US4266475A (en) * 1979-11-26 1981-05-12 Appleton Machine Company Positioning mechanism for calender rolls
DE3004915C2 (de) * 1980-02-09 1982-07-15 Kleinewefers Gmbh, 4150 Krefeld Kalander
US4485734A (en) * 1983-03-24 1984-12-04 Appleton Machine Company Four column positioning mechanism for calender machines
FI79875C (fi) * 1983-10-17 1990-03-12 Escher Wyss Ag Kalander.
IT1173599B (it) * 1984-05-10 1987-06-24 Carle & Montanri Spa Circuito di comando della pressione sui supporti dei cilindri di raffinatrici di cioccolato

Also Published As

Publication number Publication date
EP0230563A1 (de) 1987-08-05
DE3669182D1 (de) 1990-04-05
FI865143A0 (fi) 1986-12-17
JPS62156385A (ja) 1987-07-11
US4736678A (en) 1988-04-12
FI865143A7 (fi) 1987-06-24
FI86091C (fi) 1992-07-10
ATE50608T1 (de) 1990-03-15
DE3640161C2 (enrdf_load_stackoverflow) 1989-01-26
CA1262418A (en) 1989-10-24
DE3640161A1 (de) 1987-07-02
FI86091B (fi) 1992-03-31

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