EP2516737B1 - Anordnung zur regelung der position einer walze oder des spaltdrucks eines walzenspalts einer faserstoffbahnmaschine - Google Patents

Anordnung zur regelung der position einer walze oder des spaltdrucks eines walzenspalts einer faserstoffbahnmaschine Download PDF

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Publication number
EP2516737B1
EP2516737B1 EP20100763181 EP10763181A EP2516737B1 EP 2516737 B1 EP2516737 B1 EP 2516737B1 EP 20100763181 EP20100763181 EP 20100763181 EP 10763181 A EP10763181 A EP 10763181A EP 2516737 B1 EP2516737 B1 EP 2516737B1
Authority
EP
European Patent Office
Prior art keywords
digital
valve
shut
hydraulic
hydraulic chamber
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.)
Not-in-force
Application number
EP20100763181
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German (de)
English (en)
French (fr)
Other versions
EP2516737A1 (de
Inventor
Ville Hopponen
Arto Ikonen
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.)
Valmet Technologies Oy
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Valmet Technologies Oy
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 Valmet Technologies Oy filed Critical Valmet Technologies Oy
Publication of EP2516737A1 publication Critical patent/EP2516737A1/de
Application granted granted Critical
Publication of EP2516737B1 publication Critical patent/EP2516737B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • D21G1/004—Regulating the pressure
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/06—Means for regulating the pressure
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G9/00—Other accessories for paper-making machines
    • D21G9/0009—Paper-making control systems
    • D21G9/0036—Paper-making control systems controlling the press or drying section

Definitions

  • the present invention relates to an arrangement for controlling the position of a roll or the nip pressure of a nip formed between two rolls in a machine for producing or treating a fibrous web, in particular in a paper, board or tissue machine, and more particularly to an arrangement, in which a digital valve is provided as a switching valve between a fluid pressure driven actuator and a digital valve controller which controls the actuator. Moreover, the present invention relates to a control method as well as a diagnostic and maintenance method for such an arrangement.
  • a regulator constituted by digital valves which controls a hydraulic adjusting cylinder by varying a hydraulic fluid pressure or a hydraulic fluid flow to adjust a position of a roller of a nip forming roller pair and a roller pressure in the nip is, for example, US Pat WO-A-2004/044316 known.
  • digital valve stands for a valve that can be moved between two consecutive states directly from the first state, for example, the fully open state, to the second state, for example, the fully closed state, and back.
  • the digital valve When the digital valve is fully open is, it is traversed by the total volume flow rate of this valve approved fluid flow. In the fully closed state, however, the valve does not flow through the fluid.
  • Such a digital valve is therefore also referred to as on-off valve or on-off digital valve.
  • a digital valve module constructed from such on-off digital valves may therefore have N 2 flow conditions, where N is the number of digital valves in the digital valve module.
  • a digital valve module of a controller described above which has twelve digital valves, each with different volume flow rates, therefore achieves a maximum control resolution of 2 12 different volume throughputs, ie 4096 different volume throughputs. This achieves a good approximation to the continuous adjustment of the volume flow rate of known servo or proportional valves. Since the digital valves contained in a single digital valve module have only two states (open or closed), they work very fast compared to known servo or proportional valves. Also known are digital valves having more than two states, such as a three-position digital valve, where the valve in the first position allows flow in one direction, in the second position allows flow in another direction, and in the third Position does not allow flow or prevents flow (off state).
  • the in the regulator of WO-A-2004/044316 used digital valves are arranged in one or more digital valve packages or digital valve modules and allow precise control of the with Piston rod of the hydraulic cylinder roller connected by the hydraulic pressure to the hydraulic chambers of the hydraulic cylinder fluid pressure or fluid flow can be controlled digitally, ie stepwise by opening a desired number of digital valves.
  • the digital valves in the controller each have different throughputs through differently sized passage openings of the individual digital valves. Different combinations of the digital valves with the differently sized passage openings can consequently lead different fluid flow volumes to the hydraulic cylinder with a wide resolution, ie with a large number of different possible throughput volumes.
  • the pressure of the hydraulic fluid in the hydraulic cylinder is thus regulated by the opening of one or more suitable digital valves, the fluid flow rate passing through the valves typically being doubled each time it passes from one digital valve to the next larger digital valve.
  • the maximum possible volume throughput of a digital valve is always twice the maximum possible volume throughput of the previously connected digital valve.
  • the normally closed digital valves are valves that are urged to a closed position (off position) by a spring or the like in an unactuated state, eg, a state in which, for example, no power is supplied to a switching solenoid.
  • Normally open digital valves are valves that are urged into an open position (on position) by a spring or the like in an unactuated state, eg in a state in which, for example, no current is supplied to a switching electromagnet.
  • a power failure or malfunction of the regulator may cause one through digital valves controlled hydraulic device that determines the position of a roller in a fiber web machine, for example, can not be reset to a starting position.
  • a nip which is formed inter alia by this roller, so it can not be opened in case of power failure. For example, then a passing through the nip fiber web can not be removed from the nip.
  • each servo or proportional valve to be replaced in a fiber web machine is replaced by a plurality of digital valves. Accordingly, the number of valves required increases by a multiple, which undesirably increases the statistical error rate of the hydraulic control in the fiber web machine.
  • the present invention is therefore based on the object to provide an improved arrangement for controlling the position of a roller or the nip pressure of a nip and a control method as well as a diagnosis and maintenance method for the improved arrangement, whereby the aforementioned problems are solved.
  • An arrangement according to the invention for controlling the position of a roll or the nip pressure of a nip formed between two rolls, in particular for a fiber machine such as a paper, board or tissue machine has at least one fluid pressure driven actuator for varying the roll position or the nip pressure.
  • the actuator is in this case a hydraulic cylinder, preferably an oil-hydraulic cylinder, which can be connected directly to a roll of the paper, board or tissue machine, the force of the hydraulic cylinder and thereby the position of the roll or a pressure in a nip to be controlled, which is formed inter alia by the roller.
  • the arrangement according to the invention has at least one digital valve controller, which is preferably connected both to a fluid pump with pressure accumulator and to a fluid collecting container (tank or accumulator).
  • the regulator is connected to the at least one actuator driven by fluid pressure or to a plurality of actuators actuated by a fluid pressure and has a multiplicity of digital valves which serve to control a fluid pressure acting in the actuator by adjusting the actuator to control through the individual digital valves passing through fluid flow.
  • the controller comprises at least two digital valve modules, each with a plurality of digital valves, wherein a digital valve module is connected to a rod-side hydraulic chamber acting as an actuator hydraulic cylinder and the other digital valve module with a piston-side hydraulic chamber of the hydraulic cylinder, so that a translational adjustment of the hydraulic cylinder by a targeted control of the rod-side hydraulic chamber and / or the piston-side hydraulic chamber takes place.
  • Each digital valve module has a plurality of digital valves, more preferably twelve digital valves, the controller may also have more than two digital valve modules, each having more than twelve digital valves as needed.
  • the arrangement according to the invention also has at least one first digital, normally open shut-off valve, which is provided in each case between regulator and actuator.
  • a digital shut-off valve is provided between each digital valve module of the regulator and a hydraulic chamber connected to this digital valve module.
  • the at least one first digital shut-off valve may be a hydraulically controlled / actuated digital valve, the hydraulic supply of which is preferably controlled by a control valve.
  • Such a control valve may be an electromagnetically actuated, normally closed digital valve. Instead of the electromagnetically actuated digital valve but any other type of control valve can be used.
  • a normally closed digital valve is between the two digital valve modules of the regulator provided, which serves as a digital connection valve. Through this communication valve, connection can be made between the conduit leading from the one digital valve module to the rod-side hydraulic chamber and the conduit leading from the other digital valve module to the piston-side hydraulic chamber.
  • the arrangement according to the invention preferably further has at least one second digital shut-off valve which is provided in parallel with each first digital shut-off valve.
  • the second digital shut-off valve is preferably a normally closed digital valve.
  • two or more hydraulic cylinders arranged in parallel may also be connected to the controller, to which the system described above is adapted.
  • a first digital shut-off valve may be provided between each digital valve module of the regulator and each hydraulic chamber, and / or one or more connecting valves previously described can interconnect the lines to the hydraulic chambers provided by the further hydraulic cylinders.
  • a pressure sensor and / or a flow sensor or the like is respectively arranged between the at least one first shut-off valve and the at least one hydraulic cylinder or a hydraulic chamber of the hydraulic cylinder, whereby a regulation of the hydraulic pressure in the cylinder is made possible.
  • the controller i. at least one of the digital valve modules or even each digital valve module of the controller has at least one normally open digital valve that can serve as a safety valve.
  • a safety valve With such a safety valve, a possibly necessary discharge of fluid through the regulator is ensured in the event of a power failure, a malfunction of the regulator or the like. As a result, emergency power devices or the like used to date become superfluous.
  • a further hydraulic cylinder can preferably be connected to the controller in parallel to the first hydraulic cylinder.
  • a rod-side hydraulic chamber of the first hydraulic cylinder and a rod-side hydraulic chamber of the further hydraulic cylinder connected to the same digital valve module of the controller
  • a piston-side hydraulic chamber of the first hydraulic cylinder and a piston-side hydraulic chamber of the further hydraulic cylinder are connected to the same digital valve module of the controller.
  • a rod-side hydraulic chamber of the first hydraulic cylinder and a piston-side hydraulic chamber of the further hydraulic cylinder are connected to the same digital valve module of the controller, so a cross-arrangement as an alternative also conceivable.
  • the step of opening at least one first shut-off valve preferably further comprises opening a further first digital shut-off valve which is arranged between the one digital valve module and a parallel-connected hydraulic chamber of the further hydraulic cylinder. This means that in the step of opening at least one first shut-off valve, the lines between the parallel connected to the digital valve module hydraulic chambers of the first and the other hydraulic cylinder and the corresponding digital valve module are opened.
  • the step of supplying hydraulic fluid to the hydraulic chamber to be controlled preferably comprises supplying hydraulic fluid in parallel to the parallel connected hydraulic chamber such that hydraulic fluid parallel to the parallel hydraulic chambers passes through the pressure accumulator connected to the digital valve regulator, e.g. The pump is supplied.
  • the step of closing the shut-off valve preferably further comprises closing all shut-off valves present in the arrangement so that a hydraulic pressure supplied to all the hydraulic chambers to be triggered is included can be maintained without accepting pressure losses.
  • a hydraulic pressure is directly transferred between the hydraulic chambers of the hydraulic cylinder without relying on an external pressure accumulator which supplies the required fluid pressure.
  • pressure can be controlled by a single digital valve as compared with a plurality of digital valves in the regulator, thereby realizing energy-saving pressure control.
  • a further hydraulic cylinder is preferably connected to the regulator parallel to the first hydraulic cylinder, similar to that already described in the first control method according to the invention.
  • the step of opening at least one first digital shut-off valve preferably comprises opening at least one further first digital shut-off valve, which is respectively provided between the one digital valve module and the one hydraulic chamber of the further hydraulic cylinder and between the other digital valve module and the other hydraulic chamber, so that hydraulic pressure between the hydraulic chambers of the hydraulic cylinder can be exchanged or transmitted with each other.
  • a second digital shut-off valve is arranged in parallel to the first digital shut-off valve, and the step of opening at least one digital shut-off valve preferably comprises opening the first digital shut-off valve and the second digital shut-off valve, so that a hydraulic pressure can be passed through the parallel cut-off valves simultaneously.
  • the first digital shut-off valve may be a normally-open digital valve
  • the second digital shut-off valve may be a normally closed shut-off valve, so that the first digital shut-off valve may serve as a safety valve for a power failure, malfunction or the like, to allow any desired draining of To allow fluid from the cylinder.
  • the described diagnosis and maintenance method can thus be carried out during operation of the hydraulic cylinder, without adversely affecting their functionality or temporarily putting the hydraulic cylinders out of operation. A smooth operation of the fiber web machine can be ensured.
  • the shut-off valve may be a hydraulically controlled digital valve, the hydraulic supply of which is preferably controlled by a control valve.
  • the control valve may further preferably be an electromagnetically operable, normally closed digital valve that controls the step of closing the at least one shut-off valve.
  • Fig. 1 an arrangement with a digital valve controller 1 with four digital valve modules 11, 12, 13, 14 is shown, whose respective common input line to a pump 2 and their respective common output line are connected to a fluid collecting container 3.
  • Each digital valve module 11, 12, 13, 14 is comprised of a total of twelve digital valves, with the input side of each digital valve module 11, 12, 13, 14 connected to the common input line being connected to six normally closed (NC) input digital valves.
  • NC normally closed
  • the six normally closed (NC) input digital valves open into a common supply line 111, 121, 131, 141 which in turn is provided with five normally closed (NC) output digital valves and a normally open (NO) output digital valve 112, 122, 132 , 142, wherein the output digital valves via the output side of each digital valve module 11, 12, 13, 14 in the common Lead out output line.
  • the normally open (NO) output digital valve 112, 122, 132, 142 of each digital valve module 11, 12, 13, 14 serves as a safety valve 112, 122, 132, 142, which in case of power failure, malfunction or the like, a release of the regulating fluid allows.
  • the supply lines 111, 121, 131, 141 are each connected via a normally open (NO) digital valve 15, 16, 17, 18 with a hydraulic chamber 41, 42, 51, 52 of a hydraulic cylinder 4, 5. More specifically, the supply pipe 111 of the digital valve module 11 is connected to the rod-side hydraulic chamber 41 of the hydraulic cylinder 4 via the digital valve 15 acting as the shut-off valve, the supply pipe 121 of the digital valve module 12 is connected to the piston-side hydraulic chamber 42 of the hydraulic cylinder 4 via the digital valve 16 acting as the shut-off valve, the supply pipe 131 of the digital valve module 13 is connected to the rod-side hydraulic chamber 51 of the hydraulic cylinder 5 via the digital valve 17 acting as the shut-off valve, and the supply pipe 141 of the digital valve module 14 is connected to the piston-side hydraulic chamber 52 of the hydraulic cylinder 5 via the digital valve 18 also acting as the shut-off valve.
  • NO normally open
  • the hydraulic cylinders 4, 5, which are used in a fiber web machine, in particular in a paper, board or tissue machine usually for positioning a roller (not shown), depending on the movement of the roller to be positioned either the piston-side hydraulic chamber 42, 52 of the cylinders 4, 5 for advancing the roller or the rod-side hydraulic chamber 41, 51 of the cylinders 4, 5 for the rearward movement of the roller with hydraulic fluid pressure applied.
  • the desired hydraulic fluid pressure supplied by the pump 2 is thereby precisely adjusted via an on-off combination of the digital valves of each digital valve module 11, 12, 13, 14, as previously described.
  • Regulation of the position of each of the hydraulic cylinders 4, 5 is enabled by the feedback of a linear sensor (not shown) by which positioning of a piston rod 43, 53 of each cylinder 4, 5 is accurately controlled by a hydraulic pressure to be set by the digital valve controller 1 can be.
  • shut-off valves 15, 16, 17, 18 are hydraulic digital valves, which are driven by a driven by an electromagnet 191, digital control valve 19.
  • a hydraulic fluid pressure, which is used to drive the shut-off valves 15, 16, 17, 18, is also supplied by the pump 2 via the input line of the digital valve module 11.
  • the common connection of the control valve 19 with each of the shut-off valves 15, 16, 17, 18 enables all shut-off valves 15, 16, 17, 18 to be simultaneously and thereby power-saving controlled to be either open or closed. With such a control arrangement, it is also conceivable to control more than four shut-off valves simultaneously and energy-saving.
  • the normally closed (NC) digital valves of the digital valve controller 1 have the same structure as the control valve 19, which is urged in the unactuated, ie in the de-energized state by a spring element 192 in a closed position.
  • a position of the piston rods 43, 53 achieved thereby in each hydraulic cylinder 4, 5 can be maintained, by the shut-off valves 15, 16, 17, 18 are closed.
  • various diagnostic and maintenance procedures of the digital valve modules 11, 12, 13, 14 may be performed to verify that all digital valves of the digital valve controller 1 are functioning properly. Such a diagnosis and maintenance method has already been described earlier.
  • a hydraulic fluid supply to the shut-off valves 15, 16, 17, 18 is interrupted, with the result that the hydraulic fluid acting on the shut-off valves 15, 16, 17, 18 can be drained through a drain (not shown) and the shut-off valves 15, 16 , 17, 18 are urged by an respectively provided spring element 151, 161, 171, 181 in an open position.
  • a hydraulic pressure acting on the hydraulic cylinders 4, 5 can be reduced via the open shut-off valves 15, 16, 17, 18 and the safety valve 112, 122, 132, 142 provided in each digital valve module 12, 13, 14, 15. This prevents that the hydraulic cylinders 4, 5 are detected or locked in a fixed position.
  • the rollers positioned by the hydraulic cylinders 4, 5 can be moved by hand or by a security system (not shown) to a starting position, for example a paper, board or tissue web running over the rollers in a paper, board or tissue machine to free.
  • a security system not shown
  • a digital valve controller 1 has two digital valve modules 11, 12, whose structure with those of the digital valve modules 11, 12 from Fig. 1 matches.
  • Each digital valve module 11, 12 is thus as in the in Fig. 1 shown arrangement of twelve digital valves, wherein the common input line of each digital valve module 11, 12 is connected to six normally closed (NC) input digital valves.
  • the six normally closed (NC) input digital valves open into a common supply line 111, 121, which in turn is connected to five normally closed (NC) output digital valves and a normally open (NO) output digital valve 112, 122, the output Digital valves in the common output line of each digital valve module 11, 12 open.
  • the normally open (NO) output digital valve 112, 122 of each digital valve module 11, 12 serves as a safety valve 112, 122, which allows a discharge of the fluid to be controlled in the event of a power failure, malfunction or the like.
  • the supply lines 111, 121 are each connected via a control unit 7 to a hydraulic chamber 41, 42, 51, 52 of a hydraulic cylinder 4, 5, wherein the control unit 7 from a normally open (NO) digital valve 71 and a normally closed (NC) digital valve 72nd consists. Between both digital valve modules 11, 12 a normally closed (NC) digital valve 6 is provided, which serves as a connecting valve 6 and the supply lines 111, 121 can selectively connect to each other.
  • NO normally open
  • NC normally closed
  • the supply line 111 of the digital valve module 11 is connected via the corresponding control unit 7 to the rod-side hydraulic chamber 41 of the hydraulic cylinder 4 and / or the rod-side hydraulic chamber 51 of the hydraulic cylinder 5, and the supply line 121 of the digital valve module 12 is above the corresponding one Control unit 7 with the piston-side hydraulic chamber 42nd the hydraulic cylinder 4 and / or the piston-side hydraulic chamber 52 of the hydraulic cylinder 5 is connected.
  • the supply line 111 is short-circuited to the supply line 121, so that the rod-side hydraulic chamber 41 of the hydraulic cylinder 4 and / or the rod-side hydraulic chamber 51 of the hydraulic cylinder 5 directly to the piston-side hydraulic chamber 42 of the hydraulic cylinder 4 and / or the piston-side hydraulic chamber 52 of the hydraulic cylinder 5 is connected, whereby a direct hydraulic pressure exchange between the chambers 41, 42, 51, 52 can be caused.
  • the normally open (NO) digital valve 71 of each control unit 7 serves as a safety valve similar to the safety valve 112, 122 in each digital valve module 11, 12 to allow for pressure relief in the event of a power failure, malfunction or the like.
  • both digital valves 71, 72 of each control unit 7 can be switched open, whereby a larger fluid flow to the corresponding hydraulic chamber 41, 42, 51, 52 is made possible. As a result, a fast control of a hydraulic chamber 41, 42, 51, 52 can be achieved.
  • a respective pressure sensor or a flow sensor 8 is provided to measure a hydraulic pressure or a hydraulic fluid flow and to allow a hydraulic pressure control.
  • the desired pressures in each hydraulic chamber 41, 42, 51, 52 are adjusted, and the digital valves 71, 72 of FIG Control units 7 closed, which corresponds to a pressure fluid saving mode.
  • the pressure measuring sensors 8 provided between the control units 7 and the hydraulic chambers 41, 42, 51, 52 indicate a pressure loss
  • one or both digital valves 71, 72 of the corresponding control unit 7 are opened to make a pressure correction to the set value.
  • the two digital valve modules 11, 12 can be connected to one another on the basis of the connecting valve 6, so that the digital valve controller 1 can be able to supply the corresponding hydraulic pressure chambers 41, 42, 51, 52 with the desired hydraulic pressure.
  • a normally open digital valve acting as a safety valve is also conceivable in other applications.
  • a safety valve is in a squeegee device for coating a fibrous web, such as e.g. a paper, board or tissue web in the digital printing system for adjusting the pressure of the doctor bar on the fiber web conceivable to allow removal of the doctor bar from the fiber web in case of power failure or malfunction of the doctor device.
  • regulator assemblies may be used in any pressure and / or flow control of a fluid pressure driven system or actuator.

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  • Fluid-Pressure Circuits (AREA)
EP20100763181 2009-12-23 2010-10-05 Anordnung zur regelung der position einer walze oder des spaltdrucks eines walzenspalts einer faserstoffbahnmaschine Not-in-force EP2516737B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200910055308 DE102009055308A1 (de) 2009-12-23 2009-12-23 Anordnung zur Regelung der Position einer Walze oder des Spaltdrucks eines Walzenspalts in einer Faserstoffbahnmaschine
PCT/EP2010/064840 WO2011076453A1 (de) 2009-12-23 2010-10-05 Anordnung zur regelung der position einer walze oder des spaltdrucks eines walzenspalts in einer faserstoffbahnmaschine

Publications (2)

Publication Number Publication Date
EP2516737A1 EP2516737A1 (de) 2012-10-31
EP2516737B1 true EP2516737B1 (de) 2015-04-29

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ID=43037671

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20100763181 Not-in-force EP2516737B1 (de) 2009-12-23 2010-10-05 Anordnung zur regelung der position einer walze oder des spaltdrucks eines walzenspalts einer faserstoffbahnmaschine

Country Status (5)

Country Link
EP (1) EP2516737B1 (zh)
JP (1) JP5719853B2 (zh)
CN (1) CN102666981B (zh)
DE (1) DE102009055308A1 (zh)
WO (1) WO2011076453A1 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2543890B1 (en) * 2011-07-04 2018-09-05 Valmet Technologies, Inc. Safety component
EP2584570A1 (en) * 2011-10-21 2013-04-24 Metso Paper Inc. Booster for a digital hydraulic controller and method for using a booster in connection with a digital hydraulic controller

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3130056C2 (de) * 1981-07-30 1983-11-17 Festo-Maschinenfabrik Gottlieb Stoll, 7300 Esslingen Steuerventilanordnung für einen Druckmittel-Arbeitszylinder
JPS58211001A (ja) * 1982-06-02 1983-12-08 Hitachi Constr Mach Co Ltd 制御弁集合装置
JPS6381899U (zh) * 1986-11-17 1988-05-30
FI115144B (fi) * 1999-10-13 2005-03-15 Metso Paper Inc Kalanterointimenetelmä
FI113794B (fi) * 2002-11-14 2004-06-15 Metso Paper Inc Menetelmä ja järjestely pitkänomaisen telavälineen paikan ja/tai voiman säätämiseksi
FI114647B (fi) * 2003-07-02 2004-11-30 Metso Paper Inc Sovitelma rainan hallitsemiseksi paperi- tai kartonkikoneen puristinosalla
FI120317B (fi) * 2007-12-14 2009-09-15 Metso Paper Inc Menetelmä materiaalirainan valmistuksen aikaisten häiriöiden käsittelemiseksi ja laitteisto menetelmän toteuttamiseksi kalanterissa
JP3145754U (ja) * 2008-07-02 2008-10-23 清太郎 坂本 エアーシリンダ装置

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Publication number Publication date
WO2011076453A1 (de) 2011-06-30
JP5719853B2 (ja) 2015-05-20
DE102009055308A1 (de) 2011-06-30
CN102666981B (zh) 2015-02-18
CN102666981A (zh) 2012-09-12
JP2013515867A (ja) 2013-05-09
EP2516737A1 (de) 2012-10-31

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