EP0290637B1 - Verfahren zum Betrieb einer Walzenmaschine und Steueranordnung zur Durchführung dieses Verfahrens - Google Patents

Verfahren zum Betrieb einer Walzenmaschine und Steueranordnung zur Durchführung dieses Verfahrens Download PDF

Info

Publication number
EP0290637B1
EP0290637B1 EP87106762A EP87106762A EP0290637B1 EP 0290637 B1 EP0290637 B1 EP 0290637B1 EP 87106762 A EP87106762 A EP 87106762A EP 87106762 A EP87106762 A EP 87106762A EP 0290637 B1 EP0290637 B1 EP 0290637B1
Authority
EP
European Patent Office
Prior art keywords
pressure
change
load parameter
zone
action
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
EP87106762A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0290637A1 (de
Inventor
Rolf Van Haag
Rainer Dr. Schmidt
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.)
Kleinewefers GmbH
Original Assignee
Kleinewefers 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8196973&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0290637(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Kleinewefers GmbH filed Critical Kleinewefers GmbH
Priority to AT87106762T priority Critical patent/ATE60096T1/de
Priority to EP87106762A priority patent/EP0290637B1/de
Priority to DE8787106762T priority patent/DE3767476D1/de
Priority to FI882142A priority patent/FI89525C/fi
Priority to US07/192,594 priority patent/US4903517A/en
Priority to JP63112322A priority patent/JPS63288294A/ja
Publication of EP0290637A1 publication Critical patent/EP0290637A1/de
Publication of EP0290637B1 publication Critical patent/EP0290637B1/de
Application granted granted Critical
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
    • B21B37/30—Control of flatness or profile during rolling of strip, sheets or plates using roll camber control
    • B21B37/36—Control of flatness or profile during rolling of strip, sheets or plates using roll camber control by radial displacement of the roll sleeve on a stationary roll beam by means of hydraulic supports
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F7/00—Other details of machines for making continuous webs of paper
    • D21F7/06—Indicating or regulating the thickness of the layer; Signal devices
    • 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 method for operating a roller machine having at least two rollers for the treatment of web material in a press nip, in particular a calender or smoothing unit for paper, plastic or textile webs, in which the press nip has a number of zones, each one Actuating point which can be subjected to adjustable pressure - including individual bearing elements or groups of bearing elements which can be acted upon with the same pressure and which support the roller shell of a bending compensation roller on a non-rotatable carrier which penetrates the shell - in which method a working pressure is determined for each active point with the aid of a computing operation, which depends on the setpoint profile of a load parameter in the press nip, and on a control arrangement for a roll machine having at least two rolls for the treatment of web material in a press nip, in particular calender or smoothing unit for paper, plastics Off- or textile webs, in which the press nip has a number of zones, each of which has an effective point which can be
  • the web material is mainly influenced by the line load (force per unit length) or compressive stress (force per unit area) prevailing in the press nip. It is therefore of interest to specify a setpoint value for a load parameter which is equal to or depends on the aforementioned variables and to ensure in operation that this value is at least approximately maintained. However, this is encountering difficulties because it is not possible to measure the forces occurring in the press nip during operation.
  • a method of the type described at the outset and an associated control arrangement are known (GB-A-2 156 101) in which the desired gap pressure distribution can be controlled.
  • a computing device which can be supplied with setting values for the desired pressure profile and which emits the control signals for pressure control valves. These control signals are calculated as a function of the web width, the bending properties of the roll shell, the number and construction of the bearing elements, etc.
  • the computing device can also approximate the pressure profile using a mathematical calculation model based on the possible settings of the roll. Details of the calculation model are not given.
  • a method is already known (DE-A-2 825 706), in which a simplified mechanical model of the roller machine is used to determine the force distribution in the press nip.
  • the rollers are replaced by bars.
  • Pressure measuring elements are arranged in zones distributed between two rollers which simulate the press nip. On the other side of the bar, they are each assigned a pressure element simulating a bearing element.
  • a controller is provided for each zone, to which on the one hand an adjustable setpoint and on the other hand the actual value measured by the pressure measuring element of a load parameter prevailing in the zone in question are supplied.
  • the controller specifies a working pressure for the zone in question, which is supplied to both the bearing element of the original machine and the pressure element of the mechanical model. If the setpoint is changed in one zone, this affects the neighboring zones because of the rigidity of the bars, so that the working pressure can also be readjusted there with the help of the controllers assigned to these zones.
  • Calenders, smoothing units and other roller machines are of considerable size.
  • the rollers are several meters long. It is extremely difficult to build a mechanical model that can replicate the original machine in every detail.
  • essential data of the original machine change, for example when rollers with an elastic cover are turned off, which changes weight and rigidity, or when overhanging weights are varied, for example when a guide roller arrangement is changed as a result of a different web guide.
  • the mechanical model cannot take all of this into account.
  • a method is also known (DE-A-3 117 516) in which auxiliary correction signals are triggered by an external correction of the pressure control signal for a bearing element group, which act on the group control signals of adjacent bearing element groups in a compensating effect.
  • the conditions in the press nip are completely ignored here.
  • a change in one zone leads to a compensating change in the neighboring zones.
  • the auxiliary correction signals used for this do not guarantee that the conditions in the other zones will remain unchanged if the line load changes in one zone.
  • EP-A-0 140 776 There is also a control arrangement (EP-A-0 140 776) in which the shape and position of the roll shell and thus the profile and the thickness of the sheet to be rolled are regulated.
  • position sensors and pressure sensors are used in connection with a computing device.
  • the invention has for its object to provide a method of the type described above, with the help of which it is possible with relatively little effort and without a mechanical model to control the individual active points in such a way that in the event of a change in the setpoint of the Load parameters in one zone the actual value of the load parameter can be adjusted in this zone and retains its previous value practically unchanged in the other zones.
  • a pressure reaction matrix is formed, the elements of which indicate the change in the load parameter in all zones when there is a change in pressure at only one active site, in order to adapt the actual value of the load parameter to the target value using the pressure reaction matrix for the active site Zone
  • a pressure change which completely or partially compensates for the difference between the actual value and the setpoint value and for all other zones a changed actual value resulting from this pressure change is calculated so that this calculation is repeated, the compensating pressure change being provided successively in each case at a different active point until an error function dependent on the differences falls below a tolerance value, and that the working pressure for each active point is changed by the sum of all pressure changes calculated for this active point.
  • a machematic tool is created by forming the pressure reaction matrix, which describes the roller machine to be controlled very precisely. Changes to the machine (turning off elastic rollers; replacing rollers; converting overhanging weights etc.) can be taken into account very simply by changing the die or individual die members.
  • the elements of the pressure reaction matrix can be obtained in various ways. For example, they can be determined by measurements on the machine using material which reacts in a pressure-dependent manner and is to be introduced into the press nip. This includes NCR paper, which is then evaluated with a whiteness measuring device (e.g. from Elrepho).
  • a whiteness measuring device e.g. from Elrepho
  • the terms of the pressure response matrix are determined by calculations using a mathematical model of the machine.
  • a mathematical model includes all the essential properties of the machine, such as the stiffness of the roll or of the support and of the roll casing, elasticity modules of the hard and covered rolls, overhanging weights and the like.
  • the calculation using the finite element method is particularly recommended, as is used in practice for numerous cases. However, there are also other types of calculation, for example using the transfer matrix method.
  • a plurality of two-dimensional pressure reaction matrices are formed for different operating states of the machine and optionally used for the calculation depending on the operating state. This takes into account the fact that the conditions within the machine do not change linearly, so that optimum accuracy can only be obtained if different matrices are used for the calculation in different operating states.
  • the matrices can be selected automatically or by the machine operator.
  • pressure reaction matrices can be provided for at least two different target value ranges of the load parameter, for at least two different diameters of at least one roller, or for several mean temperatures of the roller surfaces.
  • Different matrices can also be provided for different roll weights when changing rolls, for different overhanging weights, for different roll hardnesses, bed numbers or web properties.
  • the temperature is measured over the length of the roller and the corresponding pressure reaction matrix or the temperature-dependent correction element is selected automatically as a function thereof.
  • a reaction matrix with links for all zones and effective points of all bending compensation rollers should be formed. This takes into account the fact that when the pressure at the point of action of a roller changes, not only the other zones of this roller but also all zones of each additional roller experience a change in the load parameter.
  • the bending compensation roller has external hydraulic cylinders as additional active points, it is advisable to assign an edge zone to each of them to determine the change in load parameters. In this way, the pressure for these outer hydraulic cylinders can also be calculated in the sense of an adaptation to the desired target value of the load parameter in the press nip.
  • the calculation steps should be repeated at least as often as there are zones. As a rule, however, at least twice the number of iteration steps is run through before the tolerance value is undershot.
  • the square root of the sum of the error squares for all zones has proven to be particularly suitable for the error function. This function ensures that the deviation of the calculated new actual value of the load parameter from the associated setpoint is particularly small in all zones.
  • the method described so far can also be integrated into a higher-level control loop.
  • the setpoint profile can be changeable as a function of a web data control loop.
  • individual bearing elements or groups of bearing elements subjected to the same pressure which support the roll shell of a bending compensation roller on a non-rotatable carrier passing through the shell, are assigned, which control arrangement generates control signals for pressure control valves in the feed lines to the active points and has a computing device which is assigned input devices and memories for the target values of the load parameter assigned to the zones, as well as outputs for the control signals, for carrying out the method according to the invention is characterized in that the computing device has memories for the members associated with at least one pressure reaction matrix which change the Specify the load parameters in all zones when there is a pressure change at only one effective point, and that the computing device for obtaining the control signals for carrying out calculation steps in which the actual reaction value of the load parameter is adjusted to the target value using the pressure reaction matrix for the effective point of a zone Difference between the actual value and the target value, completely or partially compensating for the pressure change, and for all other zones a changed actual value resulting from this pressure change is calculated, and on the repetition of the calculation is programmed,
  • a control device is expediently connected between the computing device and the pressure control valves, which converts sudden changes in the control signals output by the computing device into a ramp function.
  • the ramp function ensures a gradual change in the actual load parameter value in the press nip. This ensures that no undesirable vibrations or the like. occur.
  • a temperature measuring device which can measure the roller temperature in the individual zones, and that the computing device has an input for the temperature measured values.
  • This measuring device can have an individual measuring point for each zone or a measuring sensor which is moved back and forth along the roller.
  • a web data measuring device is recommended, which is capable of measuring actual values of web data at least in several places across the web width, and a converter connected upstream of the zone setpoint input devices, which determines the zone setpoints based on the web data.
  • the computing device can be integrated into a higher-level control loop or a control system.
  • an upper roller 2 and a lower roller 3 work together, which form a press nip 4 between them.
  • the upper roller 2 is fixed in place in the frame 5.
  • the lower roller 3 has a jacket 6, which is supported with the interposition of the press nip 4 facing primary bearing elements 7 and secondary bearing elements 8 arranged on the opposite side, and via roller bearings 9 and 10 located at the ends on a carrier 11 penetrating the jacket.
  • Both the top roller 2 and the bottom roller 3 can be provided with an elastic cover.
  • the carrier is held in a rotationally fixed manner at its free ends in spherical bearings 12 and 13 which can be pressed upwards in the active plane by means of hydraulic cylinders 14 and 15, respectively.
  • Hydraulic cylinders 14 and 15 are supplied with hydraulic fluid via pressure control valves V L and V R.
  • the primary bearing elements 7 are combined in pairs into groups which are supplied with pressure fluid via pressure control valves V1 to V6. Similar valves can also be provided for the pairs of secondary bearing elements 8.
  • the hydraulic cylinders 14 and 15 mentioned and the groups of primary bearing elements 7 are referred to below as "active points" which can be subjected to adjustable pressure. Each working point is assigned a specific zone in the press nip, namely the hydraulic cylinder 14 the one edge zone Z L and the other hydraulic cylinder 15 the edge zone Z R.
  • the zones Z to Z 6 located in between each correspond to the groups of primary bearing elements 7 shown below.
  • the secondary bearing elements 8 only serve to clamp the roll shell and are supplied with constant pressure. Only if they should be loaded with changeable pressure during operation are they to be regarded as "active sites" in the aforementioned sense and would then be assigned to zones Z and Z s .
  • a programmable computing device 16 In order to determine the control signals which are supplied to the pressure control valves mentioned in order to determine the pressure to be emitted by them, a programmable computing device 16 is provided which uses input points 17 with setpoints q sa " for a load parameter prevailing in the press nip 4, in particular the line load or compressive stress, The computing device 16 outputs control signals pson, which correspond to the pressure to be supplied to the individual active points, via a data line 18. These control signals are fed to a programmable logic controller 19, which compares these control signals with the actual pressure values p is , via the lines 20 are supplied, and then emits corresponding actuation signals y to the valves via lines 21. In addition, the controller 19 ensures that, in the event of sudden changes in the pressure setpoint p , the actuation signals output via lines 21 should run according to a ramp function, a so only a gradual change occurs.
  • a memory 22 is connected to the computing device 16, which on the one hand holds the target values of the load parameter in the individual zones and on the other hand a plurality of pressure reaction matrices, as will be explained in detail later. The latter are introduced via the input point 23.
  • the computing device 16 is connected to a temperature sensor 24 which, in a known manner, measures the surface temperature T of one roller, in particular of the related roller 2, at various points along its length, as is known, for example, from DE-PS 31 31 799.
  • the setpoint qs.11 of the load parameter can be set manually at the input points 17, as illustrated on the left in FIG. 1.
  • the setpoint can also come from an upstream converter 25, to which a measuring device 26 - also known from DE-PS-31 31 799 - supplies web data w measured over the width of the web, such as web thickness, gloss, smoothness or the like.
  • this train data can be influenced by changing the line load in corresponding zones.
  • FIG. 3 shows a roller machine 101 in which a central roller 102 is fixedly mounted in the frame 105.
  • a lower roller 103 can be pressed upward in a manner similar to that of FIGS. 1 and 2, while an upper roller 127 can be pressed against the central roller 102 in the manner of a spatula.
  • two press nips 104 and 128 are available.
  • a supercalender 201 is provided, in which six related rollers 229 to 234 and four hard rollers 235 to 238 are arranged between a lower bending compensation roller 203 and an upper bending compensation roller 227.
  • the lower roller 203 corresponds to the roller 3 in Fig. 1 with the difference that the bearings 12 and 13 for the carrier 11 are held fixed to the frame during operation.
  • the roller 227 corresponds to an upside down roller 3 of FIG. 1 with the difference that the coupling of the roller shell 6 to the carrier 11 by the roller bearings 9 and 10 is omitted and the shell 6 as a whole thus move radially relative to the carrier 11 can.
  • a finite element model of the roller machine is created.
  • the finite element method is a numerical calculation method with which complex problems are broken down into small individual problems (elements) that are accessible to a solution.
  • a roller system can be broken down into three-dimensional elements or into two-dimensional elements.
  • a three-dimensional description reproduces the structure more precisely, but leads to a more complex calculation.
  • a two-dimensional calculation model for the supercalender of FIG. 4 is shown in FIGS. 5 and 6.
  • the horizontal lines correspond from top to bottom of the roller shell 6 of the top roller 227, the covered roller 229, the hard roller 235, the covered roller 230, the hard roller 236, the covered roller 231, the hard roller 237, the covered roller 232, the covered roller 233, the hard roller 238, the related roller 234 and the roller shell 6 of the lower roller 203.
  • the latter is supported by its roller bearings 9 and 10 at the specified points.
  • the horizontal lines a thus correspond to the rolls or roll shells.
  • the vertical connections b are contact elements that simulate the elastic behavior of the roll covers - or when the web material becomes smooth.
  • the influence of the bearing elements 7 and 8 and the hydraulic cylinders 14 and 15 is represented by forces at the corresponding points of attack.
  • the subdivision into individual fields is such that a finite element is present at least for each of the zones, so that a zone-by-zone assignment is exactly possible for the load application.
  • Each roller is included in the calculation with regard to its rigidity and its weight, whereby outer diameter, inner diameter, modulus of elasticity, transverse number and density can be entered.
  • the compression behavior of the elastic coverings is also entered depending on the material and diameter pairing for the contact elements b.
  • the overhanging weights caused by bearings, guide rollers, protective brackets etc. are applied as forces at the roller bearing points.
  • FIG. 5 changes under load, as is indicated in FIG. 6 in a greatly enlarged deformation. It can be seen that the compression elements b in particular have been greatly reduced. Considerable compression can be found in the area of the two adjacent rollers 232 and 233.
  • the effective point pressures are calculated so that there is a constant basic line load in the lower press nip. This can be done for different stress levels. With the characteristic field obtained in this way, uniform distance loads can be set in the calender.
  • the pressure of each individual active point is changed by a certain amount based on the constant setpoint of the load parameter.
  • the change in the load parameter is determined at certain reference points, in particular in the middle of the zones Z to Z 6 and at the edge of the zones Z L and Z R. If these changes are summarized in a matrix, the so-called pressure reaction matrix R ij of the calender is obtained, as shown in the appendix to the formula (1).
  • Ap means the change in pressure
  • Aq the change in the load parameter
  • the numbers 1, 2 ... i, j ... n mean the numbering of the zones or active points.
  • the rows each correspond to a zone, the columns each to an effective point.
  • the pressure reaction matrix R, j has a number of rows and columns corresponding to twice the number of zones, because every change in the pressure in an effective point of the one bending compensation roller not only has an influence on the other zone of this roller, but also on all zones of the other bending compensation roller. For example, if you change the working pressure of an effective point in the upper bending compensation roller, the line load in the gap of the lower bending compensation roller also changes.
  • the pressures p, p j for the individual active points, which are to be sent to the machine as control signal p are calculated according to the formulas (7) from the original working pressure and the sum of all pressure changes calculated in the iteration steps.
  • the error function F corresponds to the square root of the sum of the error squares of the load parameters in the individual zones.
  • the iteration approximation can also be used when the calender is to be put into operation. Then the actual value of the load parameter in the columns of the reaction matrix is set equal to the basic line load.
  • the computing device 16 checks in which zone the greatest deviation between the target value and the actual value is present. This zone is fully regulated in one step, whereupon the calculation scheme proceeds as described.
  • the setpoint can be specified by path data w with the aid of the converter 25, so that the process described is carried out by the path or even integrated into a higher-level control loop.
  • the computing device can also automatically select the correct reaction matrix for the respective calculation process.
  • the average load that comes closest to one of the matrices can be derived from the setpoint profile.
  • the temperature reaction pressure matrix can also be selected with the aid of the temperature sensor 24.
  • the roll temperature changes, its diameter changes and, in the case of plastic-related rolls, the hardness (modulus of elasticity) of the roll surface also changes. This can lead to a change in the distributed load distribution. If the overall temperature level changes, this can be taken into account by means of a different pressure reaction matrix. However, if the temperature changes in the longitudinal direction of the roller, undesirable changes in the load parameter result. If, for example, the line load in one zone is increased compared to the other zones, the roller cover in this zone heats up due to the increased flexing work, which results in an increase in diameter. As a result, the line load continues to increase until the desired setpoint of the load parameter can no longer be maintained. Taking into account the measurement of the roller temperature T, the control can make such a correction that the desired setpoint remains set despite the heating of the cover.
  • temperature reaction matrices D ij (T m ) are created for different mean temperatures, each taking into account the change Aq of the load parameter in a zone for different temperature changes ⁇ T 1 , AT 2 ..., as shown in (8) .
  • Here corresponds to Numbering of parameter changes and temperature changes of the zone numbering.
  • an IBM 7535 device from IBM or a DEC 11/53 device from Digital Equipment Corporation can be used as computing device 16.
  • a commercially available memory of 500 kB is sufficient as the memory 22.
  • Devices S 5 for example, come as programmable logic controller 19 ­ 150 U from Siemens or the device A 500 from AEG.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • External Artificial Organs (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Control And Safety Of Cranes (AREA)
  • Control Of Metal Rolling (AREA)
EP87106762A 1987-05-09 1987-05-09 Verfahren zum Betrieb einer Walzenmaschine und Steueranordnung zur Durchführung dieses Verfahrens Expired - Lifetime EP0290637B1 (de)

Priority Applications (6)

Application Number Priority Date Filing Date Title
AT87106762T ATE60096T1 (de) 1987-05-09 1987-05-09 Verfahren zum betrieb einer walzenmaschine und steueranordnung zur durchfuehrung dieses verfahrens.
EP87106762A EP0290637B1 (de) 1987-05-09 1987-05-09 Verfahren zum Betrieb einer Walzenmaschine und Steueranordnung zur Durchführung dieses Verfahrens
DE8787106762T DE3767476D1 (de) 1987-05-09 1987-05-09 Verfahren zum betrieb einer walzenmaschine und steueranordnung zur durchfuehrung dieses verfahrens.
FI882142A FI89525C (fi) 1987-05-09 1988-05-06 Foerfarande foer att driva en valsmaskin och regleringsanordning foer att genomfoera detta foerfarande
US07/192,594 US4903517A (en) 1987-05-09 1988-05-09 Method of and apparatus for regulating the operation of calenders and like machines
JP63112322A JPS63288294A (ja) 1987-05-09 1988-05-09 ロール機械の運転方法および装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP87106762A EP0290637B1 (de) 1987-05-09 1987-05-09 Verfahren zum Betrieb einer Walzenmaschine und Steueranordnung zur Durchführung dieses Verfahrens

Publications (2)

Publication Number Publication Date
EP0290637A1 EP0290637A1 (de) 1988-11-17
EP0290637B1 true EP0290637B1 (de) 1991-01-16

Family

ID=8196973

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87106762A Expired - Lifetime EP0290637B1 (de) 1987-05-09 1987-05-09 Verfahren zum Betrieb einer Walzenmaschine und Steueranordnung zur Durchführung dieses Verfahrens

Country Status (6)

Country Link
US (1) US4903517A (fi)
EP (1) EP0290637B1 (fi)
JP (1) JPS63288294A (fi)
AT (1) ATE60096T1 (fi)
DE (1) DE3767476D1 (fi)
FI (1) FI89525C (fi)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3936128A1 (de) * 1989-10-30 1991-05-02 Escher Wyss Gmbh Kalander zur oberflaechenbearbeitung von materialbahnen
US5122963A (en) * 1990-03-07 1992-06-16 Process Automation Business, Inc. Actuation cell response and mapping determinations for web forming machines
DE4026773A1 (de) * 1990-08-24 1992-03-05 Voith Gmbh J M Linienkraftregelbares mehrwalzen-glaettwerk
DE4030537C1 (fi) * 1990-09-27 1991-10-10 Kleinewefers Gmbh, 4150 Krefeld, De
DE4107440C2 (de) * 1991-03-08 1993-12-02 Kleinewefers Gmbh Durchbiegungssteuerbare und beheizbare Walze
DE4345345C2 (de) * 1993-06-24 2002-03-07 Voith Paper Patent Gmbh Walze
FI95062C (fi) * 1993-12-29 1995-12-11 Valmet Paper Machinery Inc Kalanteri
FI95940C (fi) * 1994-06-15 1996-04-10 Valmet Corp Gradienttikalanteri
DE4440267A1 (de) * 1994-07-22 1996-05-15 Kuesters Eduard Maschf Verfahren zur Steuerung einer Walze
US5562027A (en) * 1995-02-16 1996-10-08 Stowe Woodward Licensco, Inc. Dynamic nip pressure and temperature sensing system
DE19511145C2 (de) * 1995-03-27 2000-07-13 Voith Sulzer Finishing Gmbh Kalander für die zweiseitige Papierbehandlung
DE19521402C2 (de) * 1995-06-13 2002-02-07 Voith Paper Gmbh Kalander für die Behandlung einer Papierbahn
US5743177A (en) * 1996-02-29 1998-04-28 Union Camp Corporation Enhanced cross-directional caliper control system
ATE315126T1 (de) * 1997-05-07 2006-02-15 Metso Paper Inc Verfahren und vorrichtung zur berechnung und steuerung der linearen lastverteilung in einem mehrspalt-kalander und mehrspalt-kalander
US5979305A (en) * 1998-03-26 1999-11-09 Appleton Papers, Inc. Method and apparatus for controlling deflection of a roll
FI111744B (fi) * 1998-06-15 2003-09-15 Metso Paper Inc Menetelmä vyöhykesäädettävän telan säätämiseksi
FI111743B (fi) * 1998-06-15 2003-09-15 Metso Paper Inc Menetelmä ja järjestelmä nippiprofiilin säätämiseksi
DE10210357B4 (de) * 2002-03-08 2005-12-22 Voith Paper Patent Gmbh Walzenanordnung
FI114413B (fi) * 2002-03-18 2004-10-15 Ville Jaervinen Menetelmä nippivoiman määrittämiseksi ja nippivoiman tasaamiseksi kahden pyörivän telan välillä
FI113794B (fi) 2002-11-14 2004-06-15 Metso Paper Inc Menetelmä ja järjestely pitkänomaisen telavälineen paikan ja/tai voiman säätämiseksi
FI115984B (fi) * 2003-11-27 2005-08-31 Metso Paper Inc Menetelmä ja järjestely värähtelyn estämiseksi moninippikalanterissa tai -kalanteriryhmässä
US7572214B2 (en) * 2005-05-04 2009-08-11 Stowe Woodward L.L.C. Suction roll with sensors for detecting operational parameters having apertures
US7823428B1 (en) * 2006-10-23 2010-11-02 Wright State University Analytical method for use in optimizing dimensional quality in hot and cold rolling mills
DE112008000260A5 (de) * 2007-02-17 2009-12-31 Oerlikon Textile Gmbh & Co. Kg Verfahren und Vorrichtung zur Herstellung einer elastischen Materialbahn
DE102007052812A1 (de) * 2007-11-06 2009-05-07 Siemens Ag Glättwerk, Papiermaschine mit einem Glättwerk und Glättungsverfahren für Bahnware
US9097595B2 (en) * 2008-11-14 2015-08-04 Stowe Woodward, L.L.C. System and method for detecting and measuring vibration in an industrial roll
US8346501B2 (en) * 2009-06-22 2013-01-01 Stowe Woodward, L.L.C. Industrial roll with sensors arranged to self-identify angular location
US8236141B2 (en) * 2009-06-23 2012-08-07 Stowe Woodward, L.L.C. Industrial roll with sensors having conformable conductive sheets
US8475347B2 (en) 2010-06-04 2013-07-02 Stowe Woodward Licensco, Llc Industrial roll with multiple sensor arrays
EP2729290B1 (en) * 2011-07-07 2020-12-30 DSM IP Assets B.V. Process for making a polymeric film
CN103998682B (zh) 2012-01-17 2016-10-26 斯托·伍德沃德许可有限责任公司 确定旋转辊的角位置的系统和方法
US9650744B2 (en) 2014-09-12 2017-05-16 Stowe Woodward Licensco Llc Suction roll with sensors for detecting operational parameters
JP6810169B2 (ja) 2016-04-26 2021-01-06 ストウ・ウッドワード・ライセンスコ，リミテッド・ライアビリティ・カンパニー 陸上距離を向上させるスルーホールおよび盲ドリル穴のパターンを備えた吸込ロール
IT202200011375A1 (it) * 2022-05-30 2023-11-30 Ramina S R L Macchina per la calandratura

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2825706A1 (de) * 1978-05-22 1979-11-29 Escher Wyss Ag Vorrichtung zur bestimmung der in einer walzvorrichtung mit mindestens einer durchbiegungseinstellwalze und mindestens einer gegenwalze wirkenden druckkraefte
DE3022491C2 (de) * 1980-06-14 1983-01-27 Kleinewefers Gmbh, 4150 Krefeld Druckbehandlungswalze
DE3033482C2 (de) * 1980-09-05 1983-06-23 Kleinewefers Gmbh, 4150 Krefeld Walze mit elektromagnetischer Heizung
DE3042616C2 (de) * 1980-11-12 1983-04-07 Kleinewefers Gmbh, 4150 Krefeld Druckbehandlungswalze mit hydraulischer Abstützung
DE3117516C2 (de) * 1981-05-02 1984-07-26 Escher Wyss AG, Zürich Anordnung zum Steuern einer Durchbiegungseinstellwalze
DE3131799C2 (de) * 1981-08-12 1984-08-30 Kleinewefers Gmbh, 4150 Krefeld Walzenpresse für Papier- und ähnliche Bahnen, insbesondere Kalander
FR2553312B1 (fr) * 1983-10-14 1987-05-22 Clecim Sa Procede de reglage de l'epaisseur et du profil d'un produit plat en cours de laminage
JPH07120275B2 (ja) * 1983-12-28 1995-12-20 株式会社日立製作所 シミューションプログラム生成方法
DE3410136A1 (de) * 1984-03-20 1985-10-03 Küsters, Eduard, 4150 Krefeld Verfahren zur steuerung der liniendruckverteilung in walzenanordnungen
DE3516535A1 (de) * 1985-05-08 1986-11-13 Kleinewefers Gmbh Walzenaggregat mit durchbiegungssteuerbarer und temperierbarer walze
FI76872C (fi) * 1987-02-23 1988-12-12 Valmet Paper Machinery Inc Foerfarande och anordning foer styrning av zonvals.

Also Published As

Publication number Publication date
FI882142A0 (fi) 1988-05-06
FI89525C (fi) 1993-10-11
ATE60096T1 (de) 1991-02-15
FI882142A (fi) 1988-11-10
JPH049234B2 (fi) 1992-02-19
DE3767476D1 (de) 1991-02-21
EP0290637A1 (de) 1988-11-17
FI89525B (fi) 1993-06-30
JPS63288294A (ja) 1988-11-25
US4903517A (en) 1990-02-27

Similar Documents

Publication Publication Date Title
EP0290637B1 (de) Verfahren zum Betrieb einer Walzenmaschine und Steueranordnung zur Durchführung dieses Verfahrens
DE2823738C2 (de) Verfahren zum Einebnen (Glätten) einer Papierbahn
EP0201783B1 (de) Walzenaggregat mit durchbiegungssteuerbarer und temperierbarer Walze
AT400328B (de) Verfahren zur beherrschung des aufrollens einer papier- oder ähnlichen bahn
DE3416210C2 (fi)
DE3117398C2 (fi)
AT390287B (de) Verfahren und vorrichtung zum kalandrieren einer papierbahn
CH626273A5 (fi)
DE602004010293T2 (de) Verfahren zur erhöhung der steuergenauigkeit des weges eines produkts in einer richtmaschine mit ineinandergreifenden walzen und zur durchführung desselben verwendete richtanlage
DE19650576C2 (de) Kalander
DE3535458C1 (de) Verfahren zum Regeln der Feuchtigkeit einer textilen Warenbahn oder dgl.durch Abquetschen und Vorrichtung zur Durchfuehrung dieses Verfahrens
EP0035009B1 (de) Vorrichtung zum Abstützen einer Arbeitswalze einer Blechbiege- oder -richtmaschine
DE3117516A1 (de) "anordnung zum steuern einer durchbiegungseinstellwalze"
DE2856525A1 (de) Verfahren und vorrichtung zur verarbeitung mit matrizenwalzen bzw. praegerollen
DE3416211C2 (de) Verfahren zum Kalandrieren von einseitig mit einer Magnetschicht versehenen Bahnen und Kalander zur Durchführung dieses Verfahrens
DE3007452A1 (de) Verfahren zur steuerung oder regelung des auf eine materialbahn ausgeuebten druckes im walzenspalt eines walzwerkes, insbesondere eines kalanders, und walzwerk mit einer vorrichtung zur durchfuehrung des verfahrens
AT522234A1 (de) Verfahren und Vorrichtung zum Geraderichten von Draht oder Bandmaterial
DE3433827A1 (de) Regeleinrichtung in einer walzenpresse
EP1341661A1 (de) Verfahren zur steuerung/regelung der verteilung der spritzmasse sowie mehrkavitäten - spritzgiesswerkzeug
DE10117454A1 (de) Verfahren zur Registerregelung
DE60122590T2 (de) Verfahren zum Regeln einer oder mehrerer Oberflächenqualitätsvariablen bei einem Faserflachmaterial in einem Schuhkalander
DE3300251C2 (fi)
EP0140196A2 (de) Kalander
AT399175B (de) Kalander zur oberflächenbearbeitung von materialbahnen
DE3728046A1 (de) Verfahren zum kompensieren der durchbiegung des lippenbalkens einer papiermaschine und eine in dem verfahren angewendete vorrichtung

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19880212

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE ES FR GB IT LI NL SE

17Q First examination report despatched

Effective date: 19890511

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES FR GB IT LI NL SE

REF Corresponds to:

Ref document number: 60096

Country of ref document: AT

Date of ref document: 19910215

Kind code of ref document: T

ITF It: translation for a ep patent filed

Owner name: JACOBACCI & PERANI S.P.A.

ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
REF Corresponds to:

Ref document number: 3767476

Country of ref document: DE

Date of ref document: 19910221

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19910427

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19910531

Ref country code: CH

Effective date: 19910531

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: SULZER-ESCHER WYSS GMBH

Effective date: 19911015

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

NLR1 Nl: opposition has been filed with the epo

Opponent name: SULZER-ESCHER WYSS GMBH

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

R26 Opposition filed (corrected)

Opponent name: SULZER-ESCHER WYSS GMBH

Effective date: 19911015

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19930503

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19930531

Year of fee payment: 7

PLBM Termination of opposition procedure: date of legal effect published

Free format text: ORIGINAL CODE: 0009276

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: OPPOSITION PROCEDURE CLOSED

27C Opposition proceedings terminated

Effective date: 19930401

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19940531

NLR2 Nl: decision of opposition
BERE Be: lapsed

Owner name: KLEINEWEFERS G.M.B.H.

Effective date: 19940531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19941201

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
EAL Se: european patent in force in sweden

Ref document number: 87106762.5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19960415

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19960419

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19960422

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19960423

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19960425

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19970509

Ref country code: AT

Effective date: 19970509

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19970510

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19970509

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980130

EUG Se: european patent has lapsed

Ref document number: 87106762.5

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980203

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050509