EP0554698B1 - Walzenmaschine - Google Patents

Walzenmaschine Download PDF

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Publication number
EP0554698B1
EP0554698B1 EP93100640A EP93100640A EP0554698B1 EP 0554698 B1 EP0554698 B1 EP 0554698B1 EP 93100640 A EP93100640 A EP 93100640A EP 93100640 A EP93100640 A EP 93100640A EP 0554698 B1 EP0554698 B1 EP 0554698B1
Authority
EP
European Patent Office
Prior art keywords
edge
support
web
roll
cooling
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
EP93100640A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0554698A1 (de
Inventor
Hans-Rolf Dipl.-Ing. Conrad
Jürgen Dr. Baumeister
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.)
Voith Sulzer Finishing GmbH
Original Assignee
Voith Sulzer Finishing 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 Voith Sulzer Finishing GmbH filed Critical Voith Sulzer Finishing GmbH
Publication of EP0554698A1 publication Critical patent/EP0554698A1/de
Application granted granted Critical
Publication of EP0554698B1 publication Critical patent/EP0554698B1/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
    • D21G1/02—Rolls; Their bearings
    • D21G1/0253—Heating or cooling the rolls; Regulating the temperature
    • D21G1/0286—Regulating the axial or circumferential temperature profile of the roll
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus

Definitions

  • the invention relates to a roller machine, in particular a calender, with a cooling device for the edge region of an elastic roller that is not covered by the web to be treated, the cooling device being movable along a guide extending parallel to the roller axis.
  • Such a roller machine is known from US-A-1 714 261.
  • the covers of elastic rollers are sensitive to excessive temperatures. The most endangered part of the covers is in the edge area, which extends between the edge of the web and the end of the cover. Here the heat of the heated counter-roller, which works together with the elastic roller, is not dissipated through the web. It is therefore already known to cool these edge areas by means of stationary cooling devices. Air nozzles, air blow boxes, two-substance or atomizing nozzles, moistening rollers and the like are common. the like
  • the size of the edge area also changes. If the edge area increases, the cooling effect is insufficient, with the result that the cover is destroyed by excessively high temperatures.
  • the invention has for its object to achieve reliable cooling of the edge areas regardless of the width or a traversing of the web.
  • the cooling device is attached to a support which can be moved along the guide by an actuator, that the support carries a sensor that detects the web edge and is offset relative to the cooling device in the direction of the center of the roll and that the servomotor adjusts the support in dependence on the sensor signals such that the sensor remains in the area of the web edge.
  • the support tracks the course of the web edge.
  • the cooling device is at a fixed distance from the web edge. This can be chosen so small without difficulty that there are no sections between the cooled area and the web edge in which higher temperatures occur. If necessary, the cooling device can exert its effectiveness over a certain axial length, so that even wider edge areas can be protected against temperature increases. If the web width changes, the support is automatically moved to the new position. If the train shifts, the support executes a corresponding subsequent movement.
  • the support carries an edge temperature measuring device which detects the surface temperature of the roller in the edge area, and that an adjusting device is provided which changes the cooling capacity of the cooling device as a function of the measured edge temperature.
  • the use of the boundary temperature measuring device makes it possible to adapt the cooling capacity to the respective conditions. By Inclusion of the boundary temperature measuring device in the support ensures that the measurement is carried out at the correct point at which the cooling device is also effective.
  • a web area temperature measuring device which detects the surface temperature of the roll in the web area, and that the setting device has a controller which tracks the edge temperature of the web area temperature.
  • the cooling device preferably has a plurality of cooling points which can be switched on by the setting device as a function of the measured edge temperature. As a result, the cooling capacity is gradually changed. Instead, the cooling capacity can also be changed continuously, in the case of air cooling, for example by means of a controllable fan or an adjustable orifice, in the case of water-air dual-substance cooling, for example by changing the water supply by means of a control valve.
  • a limit temperature detector is also recommended, which responds when the boundary temperature exceeds a specified limit. In this case, the roller machine must be switched off or at least the heating power of the counter roller reduced.
  • the cooling device has a plurality of axially offset cooling points and that an adjusting device determines the number of switched-on cooling points as a function of the position of the support. In this way, edge zones of different widths can be cooled uniformly, the current width being automatically taken into account.
  • the servomotor is a rotary motor that drives a threaded spindle that engages an internal thread on the support. This results in a simple structure in which the spindle also serves as a linear guide.
  • the servomotor is a linear motor. It can be operated pneumatically, hydraulically, electrically or in another way.
  • the guide has a garage position in which the support is located axially outside the roller surface. Whenever the roller machine is switched off, the support can be moved to its garage position in which it does not hinder a roller change.
  • a lower roller 1 and an upper roller 2 form a nip 3, in which a web 4 with the width B is treated, in particular smoothed or provided with a gloss.
  • the lower roller 1 is fixed at its ends 5. It carries an elastic cover 6 with the width A. On both sides of the web 4, therefore, an edge region 9 or 10 remains between the web edge 7 and the reference end 8.
  • the upper roller 2 is a heated steel roller, which is connected to a heat transfer medium via a line system 11 is loaded and is loaded at its ends with a downward force P in order to apply the required line load.
  • the heat transferred from the upper roller 2 is dissipated from the web 4 over the width B. In contrast, this heat dissipation is absent in the edge regions 9 and 10. If the heat is not dissipated in any other way, the cover heats up in an inadmissible manner and can ultimately be thermally destroyed. In addition, it must be taken into account that there are webs of different widths B and that occasionally a traversing, that is to say a gradual back and forth movement in the direction of the roller axis, can also be observed.
  • a support 12 or 12a is assigned to each of the edge regions 9 and 10, which is supported in the direction of the double arrow X with the aid of a servomotor 13 or 13a can be moved back and forth.
  • a sensor 14 or 14a detects the web edge 7 and controls the servomotor 13, 13a in such a way that the sensor remains in the region of the web edge 7.
  • the support itself carries a cooling device and an edge temperature measuring device for monitoring the cooling effect. If the roller machine is switched off arbitrarily or automatically in the event of a web break, each support moves into a garage position 15, which is illustrated in broken lines in FIG. 1 and in which the support is shifted to such an extent that it does not pull in the paper web and replace the rollers with special needs.
  • a frame 18 is fastened to the machine stand 16 via connecting plates 17, one of which is illustrated, which has an upper support 19, a lower support 20 and two end plates 21 and 22.
  • On the lower support 20 are two bearings 23 and 24, in which a threaded spindle 25 is mounted, which can be driven by the output shaft 26 of the servomotor 13.
  • Fig. 2 it can be seen that the cooling device 30 and the edge temperature measuring device 34 are arranged approximately in the same vertical plane 41 and that the sensor 14 is located in a vertical plane 42 which is opposite the vertical plane 41 by an amount a in the direction of the Center of the roller is offset.
  • the support 12 is set by the motor 13 with the aid of the signals from the sensor 14 so that the sensor 14 is located in the region of the web edge 7.
  • the cooling device 30 is then directed onto the adjoining edge region 10.
  • the cooling capacity can be regulated as a function of the temperature which the edge temperature measuring device 34 detects. If the web edge 7 is displaced by changing the web width B or by traversing, the support 12 follows this edge movement.
  • the energy sources required for operation air, water, electricity
  • edge measurement can also be carried out at a certain distance from the gap 3, in which case a guide roller 43 is then expediently used.
  • FIG. 4 illustrates a support 112 which, as the cooling device 130, has four cooling points 131, each in the form of a two-component spray nozzle, and an edge temperature measuring device 134 has.
  • the cooling capacity can be changed by switching individual cooling points 131 on and off.
  • a support 212 is illustrated which, as the cooling device 230, has four cooling points 231 horizontally next to one another, each in the form of a two-component spray nozzle.
  • An edge temperature measuring device 234 is assigned to each cooling point 231.
  • a sensor 214 is attached to the support 212, which is offset relative to the cooling device 230 in the direction of the center of the roll.
  • a web area temperature measuring device 44 (FIG. 1) is provided for the purpose of temperature control of the edge areas. Your measured temperature value forms the setpoint for the temperature control in the peripheral areas 9 and 10.
  • a control circuit such as can be used in connection with the support according to FIG. 5 is illustrated in FIG. 6.
  • a switching device 45 is assigned to the servomotor 13, with the aid of which the support 212 is adjusted as a function of the signals from the sensor 214 in such a way that the sensor remains constantly in the region of the web edge 7. If the sensor 214 operates optically, it receives a reflected beam when the sensor is completely in the edge region and no reflected beam when the sensor is completely in the web region. The edge 7 can therefore be detected very precisely.
  • the cooling points 231 are each provided with an adjusting device 46 which is controlled by an adjusting device 47.
  • Another signal line 48 reports the position of the Supports 212, which is also a measure of the width of the edge area.
  • the number of active cooling points 231 is automatically determined.
  • the required cooling capacity is then set in the setting device 47 with the aid of the controller and set by the actuator 46.
  • a warning device 49 is provided which responds when the boundary temperature exceeds a predetermined limit value.
  • control circuit according to FIG. 6 can also be used for a support according to FIG. 4.
  • the actuators 46 are simple switches that switch the cooling points 139 arranged in a vertical plane on or off, depending on the cooling requirement required.
  • an air chamber or an air blowing nozzle can also be used as the cooling device.
  • the two-substance nozzles are expediently radially adjustable with respect to the roller surface in order to be able to set the optimal cooling effect.

Landscapes

  • Paper (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Soil Working Implements (AREA)
  • Vehicle Body Suspensions (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Transmissions By Endless Flexible Members (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Transplanting Machines (AREA)
  • Rolls And Other Rotary Bodies (AREA)
EP93100640A 1992-02-01 1993-01-18 Walzenmaschine Expired - Lifetime EP0554698B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4202917A DE4202917C1 (fi) 1992-02-01 1992-02-01
DE4202917 1992-02-01

Publications (2)

Publication Number Publication Date
EP0554698A1 EP0554698A1 (de) 1993-08-11
EP0554698B1 true EP0554698B1 (de) 1995-09-06

Family

ID=6450787

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93100640A Expired - Lifetime EP0554698B1 (de) 1992-02-01 1993-01-18 Walzenmaschine

Country Status (8)

Country Link
US (1) US5289766A (fi)
EP (1) EP0554698B1 (fi)
JP (1) JPH0765278B2 (fi)
AT (1) ATE127553T1 (fi)
CA (1) CA2088079C (fi)
DE (2) DE4202917C1 (fi)
FI (1) FI98390C (fi)
NO (1) NO930272L (fi)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5611396A (en) * 1994-08-19 1997-03-18 Abb Industrial Systems, Inc. Method and apparatus for throttle valve control of a calender roll actuator
DE19540898A1 (de) * 1995-11-02 1997-05-07 Voith Sulzer Papiermasch Gmbh Verfahren und Vorrichtung zur Behandlung einer Faserstoff- oder Papierbahn in einer Preßvorrichtung
DE19607475C1 (de) * 1996-02-28 1997-04-10 Voith Sulzer Finishing Gmbh Kalander zum Satinieren von Papier
FI2640U1 (fi) * 1996-03-22 1996-11-22 Valmet Corp Tela, erityisesti soft- tai superkalanterin tela
US5848486A (en) * 1997-05-29 1998-12-15 Finishtech, Ltd. Line of sight temperature control and method for laundry ironers
US6000328A (en) * 1998-03-05 1999-12-14 Impact Systems, Inc. Gloss control system using air jets
DE19822531B4 (de) * 1998-05-19 2006-11-30 Voith Patent Gmbh Kalanderwalze
DE19824542B4 (de) * 1998-06-03 2005-07-14 Voith Paper Patent Gmbh Walze, Kalander und Verfahren zum Betrieb einer Walze
FI108072B (fi) * 2000-03-31 2001-11-15 Metso Paper Inc Menetelmä telan päällä olevan polymeeripinnan reunaosan ja keskiosan reuna-alueen välisen lämpötilaeron pienentämiseksi ja menetelmässä käytetty laitteisto
FI113675B (fi) * 2000-04-05 2004-05-31 Metso Paper Inc Menetelmä polymeeripinnan vahingoittumisen estämiseksi kalanterilla ja kalanteri
FI4742U1 (fi) * 2000-10-11 2000-12-13 Valmet Corp Kalanteri
FI110273B (fi) * 2001-05-07 2002-12-31 Metso Paper Inc Järjestely paperikoneen tai sellukoneen telan reuna-alueen jäähdyttämiseksi
DE102004037575A1 (de) * 2004-08-03 2006-03-16 Daimlerchrysler Ag Prüfvorrichtung und Prüfverfahren zur fertigungsintegrierbaren, zerstörungsfreien Prüfung insbesondere von Membran-Elektroden-Anordnungen zur Verwendung in Brennsoffzellen
SE531300C2 (sv) * 2006-01-31 2009-02-17 Tetra Laval Holdings & Finance Ett system och ett sätt att reglera och utjämna temperaturen hos två samverkande cylindrar som bildar ett nyp genom vilket en bana leds
DE102010015858B4 (de) 2010-03-08 2012-01-26 Andritz Küsters Gmbh Verfestigungsverfahren einer Filamente aus thermoplastischem Material umfassenden Lage zu einer Vliesbahn sowie Thermobonding-Kalander
DE102019207163A1 (de) * 2019-05-16 2020-11-19 Sms Group Gmbh Sprühkopf zur Kühlschmierung eines Gesenks einer Umformmaschine

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1253298A (en) * 1917-08-10 1918-01-15 Jacob A Temple Device for cooling calender-rolls.
US1714261A (en) * 1927-11-11 1929-05-21 J O Ross Engineering Corp Paper-converting machinery
DE1208145B (de) * 1962-02-02 1965-12-30 Driam S A Vorrichtung zum Fuehren von Metallstreifen
US3203678A (en) * 1963-05-01 1965-08-31 Warren S D Co Temperature control system for rolls
US3257938A (en) * 1963-09-24 1966-06-28 Lodding Engineering Corp Swivel nozzle for sheet caliper control of paper
US3254593A (en) * 1963-10-03 1966-06-07 Beloit Corp Gloss calender drive system and method
AT283899B (de) * 1968-02-20 1970-08-25 Brunnschweiler Societa Per Azi Verfahren und Vorrichtung zur Kühlung eines Glättwerkes
US3489344A (en) * 1968-11-12 1970-01-13 Beloit Corp Roll temperature control
US4114528A (en) * 1976-03-02 1978-09-19 Midland-Ross Corporation Apparatus for web caliper control
JPS60169524A (ja) * 1984-02-14 1985-09-03 Mitsubishi Heavy Ind Ltd 金属ストリツプ冷却装置
US4702015A (en) * 1986-02-28 1987-10-27 Thermo Electron - Web Systems, Inc. Evaporative-cooling apparatus and method for the control of web or web-production machine component surface temperatures
FI83249C (fi) * 1988-03-15 1991-06-10 Valmet Paper Machinery Inc Kalandreringsanlaeggning och -foerfarande.
DE3829862C1 (fi) * 1988-09-02 1989-08-10 Eduard Kuesters, Maschinenfabrik, Gmbh & Co Kg, 4150 Krefeld, De
DE9016548U1 (fi) * 1990-12-06 1991-02-21 J.M. Voith Gmbh, 7920 Heidenheim, De

Also Published As

Publication number Publication date
US5289766A (en) 1994-03-01
FI930393A (fi) 1993-08-02
EP0554698A1 (de) 1993-08-11
DE59300545D1 (de) 1995-10-12
ATE127553T1 (de) 1995-09-15
NO930272D0 (no) 1993-01-27
FI930393A0 (fi) 1993-01-29
JPH0765278B2 (ja) 1995-07-12
JPH05272088A (ja) 1993-10-19
DE4202917C1 (fi) 1993-08-12
CA2088079C (en) 1996-02-27
FI98390C (fi) 1997-06-10
FI98390B (fi) 1997-02-28
NO930272L (no) 1993-08-02
CA2088079A1 (en) 1993-08-02

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