EP1773701B1 - Procede dans une enrouleuse et enrouleuse - Google Patents

Procede dans une enrouleuse et enrouleuse Download PDF

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Publication number
EP1773701B1
EP1773701B1 EP05761410A EP05761410A EP1773701B1 EP 1773701 B1 EP1773701 B1 EP 1773701B1 EP 05761410 A EP05761410 A EP 05761410A EP 05761410 A EP05761410 A EP 05761410A EP 1773701 B1 EP1773701 B1 EP 1773701B1
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EP
European Patent Office
Prior art keywords
supporting member
reeling
measuring means
reeler
profile
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
EP05761410A
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German (de)
English (en)
Other versions
EP1773701A2 (fr
Inventor
Petteri Lannes
Tatu PITKÄNEN
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
Original Assignee
Metso Paper 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 Metso Paper Oy filed Critical Metso Paper Oy
Priority to EP10175579A priority Critical patent/EP2256074A1/fr
Publication of EP1773701A2 publication Critical patent/EP1773701A2/fr
Application granted granted Critical
Publication of EP1773701B1 publication Critical patent/EP1773701B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/08—Web-winding mechanisms
    • B65H18/14—Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web
    • B65H18/22—Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web by friction band
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
    • B65H2515/30—Forces; Stresses
    • B65H2515/31—Tensile forces
    • B65H2515/314—Tension profile, i.e. distribution of tension, e.g. across the material feeding direction or along diameter of web roll

Definitions

  • the invention relates to a method in a reeler, wherein the reeling nip is formed by a reeling core or a growing machine reel and at least one loop of an endless supporting member that is substantially continuous in the axial direction of the reeling core.
  • the invention also relates to a reeler for implementing the aforementioned method.
  • a paper web which is typically several meters wide and which has been produced and/or treated in the preceding machine sections, is reeled around a reeling shaft, i.e. a reel spool to form a machine reel.
  • a reeling shaft i.e. a reel spool
  • a reeling cylinder that is bearing-mounted rotatable is typically used for guiding the paper web on the machine reel, wherein the nip contact between the reeling cylinder and the machine reel is utilized to influence the quality of the reel produced thereby.
  • the ends of the reel spool are affected by means of a suitable loading mechanism to adjust the nip contact between the machine reel that is being formed and the reeling cylinder.
  • a suitable loading mechanism to adjust the nip contact between the machine reel that is being formed and the reeling cylinder.
  • the publication EP-860391 discloses a reeler, in which the web is guided on a reel via a supporting member formed of several endless belts or wires arranged next to each other in the longitudinal direction of the guide roll, said supporting member being passed via the guide rolls.
  • a reeler in which the web is guided on a reel via a supporting member formed of several endless belts or wires arranged next to each other in the longitudinal direction of the guide roll, said supporting member being passed via the guide rolls.
  • each belt loop requires separate belt tensioning means for controlling the pressure of the reeling nip, which means cause a lack of space in the surroundings of the reeler.
  • WO publication 98/55384 discloses a reeler in which the reeling nip is formed by means of a loop of a supporting member and a reel spool.
  • the total tension of the belt is controlled by means of load cells attached to a guide roll guiding the belt.
  • the total tension of the belt thus attained is also used for controlling the nip pressure of the reeling nip.
  • the purpose of the present invention is thus to provide a method in a reeler, by means of which the above-mentioned problems can be avoided and the tension profile of a belt reeler or the cross-directional linear load profile of the reeling nip can be accurately and reliably determined, in which belt reeler, i.e. a reel up, the reeling nip is formed by means of a flexible supporting member, such as belt or a wire, in the form of an endless loop that is continuous in the axial direction of the reeling core.
  • a flexible supporting member such as belt or a wire
  • CD-profile of the reeling nip, or other parameters connected to the operation of the supporting member. If the target of the measurement is the cross-directional linear load profile of the reeling nip, the above-mentioned parameters can be determined directly from that. It is also an aim of the invention to provide a reeler implementing the aforementioned method.
  • the method in a reeler according to the invention is characterized in that the cross-directional linear load profile of the reeling nip is measured by means of at least one measuring means that is arranged to the supporting member.
  • the reeler according to the invention is characterized in that at least one measuring means is arranged to the supporting member in order to measure the cross-directional linear load profile of the reeling nip.
  • endless supporting member refers to a flexible belt or wire in the form of an endless loop that is substantially continuous in the axial direction of the reeling core, the width of which belt or wire is substantially equal to the width of the web to be reeled, and which travels in the machine direction by the effect of the rotating movement of the guide rolls.
  • the belt reeler in turn, refers to a reeler in which the reeling nip is formed by means of the above-presented supporting member and a growing machine reel.
  • the reeling core refers to a core or a reel spool, around which the web of paper, paperboard, tissue or the like is reeled.
  • the variables proportional to the tension of the endless supporting member that is substantially continuous in the longitudinal direction of the reeling core, or the cross-directional linear load profile of the reeling nip are measured with at least one measuring sensor placed in at least one guide roll controlling the supporting member or in the supporting member itself. Of the measured variables proportional to the tension of the supporting member is determined the cross-directional tension profile of the supporting member.
  • the measuring sensor is, for example, a sensor operating on piezoelectric principle, for example an EMFi film, which changes the pressure or force directed to it into an electric output signal.
  • Other sensors operating on piezoelectric principle such as, for example, PVDF film and separate piezocrystal sensors, can also be used in the measuring.
  • strain gauges can be attached on the surface of the roll or the supporting member suitably spaced to measure the tension of the supporting member, of which measurement it is possible to form a tension profile.
  • Suitable sensors are typically of such a type that they are capable of changing the pressure or load exerted thereto into a signal that can be conducted via a suitable conductor or wirelessly to a data processing unit, in which it can be processed in a manner known from processing of measurement signals.
  • the above-mentioned sensors When the above-mentioned sensors are attached to the guide roll, they measure the load or pressure directed by the supporting member to the surface of the guide roll, in which case a greater pressure/force is directed to the sensor at the tight zones of the belt than at the slack zones, in which case a cross-directional tension profile of the supporting member, i.e. a CD-profile is created.
  • a cross-directional tension profile of the supporting member i.e. a CD-profile
  • sensors attached to the guide roll When sensors attached to the guide roll are used in the measuring, they are arranged to the roll either to circle the roll in a spiral-like manner over its entire length or to extend over the length of the roll directly in its axial direction.
  • the film-like sensors can be placed to the roll as a narrow band or as separate sequential strips.
  • the sensors can be arranged either on the surface of the roll, on top of the roll coating or under the coating layer/layers in such a manner, however, that the coating over the sensor does not cause significant deterioration of the measuring accuracy.
  • the measuring results provided by the sensors attached to the roll are transferred advantageously wirelessly from the roll, for example, by means of a slide ring or a transfer method based on telemetry.
  • the sensors attached to the supporting member may also be point-like sensors, narrow, band-like sensors or separate strips positioned successively.
  • the sensors are arranged to the supporting member in such a manner that they extend substantially over its width.
  • the measuring sensors can be arranged so that they replace the wire threads or they can be arranged between the wire threads.
  • the essential aspect is that they do not leave marks on the web to be reeled.
  • the supporting member can also be formed entirely of several overlapping layers, at least one of which operates as the sensor performing the measurements.
  • the measuring sensors arranged to the supporting member measure the variables needed for determining the tension profile of the supporting member in the reeling nip, i.e. when the part of the supporting member comprising the measuring sensors and the reel spool or the machine reel that is being formed are in contact with each other.
  • the cross-directional linear load profile of the reeling nip is attained directly from these measurements, and a calculatory conversion tension profile -> cross-directional profile of the linear load is not necessary.
  • the measurement results from the measuring sensors attached to the supporting member can be transferred out of the sensor in a number of different ways, for example by means of slide wires positioned on the surface of the supporting member and brushes attached to one guide roll, wherein the measurement information can be transferred outside through the guide roll.
  • the measurement information can be transferred out of the supporting member in a wireless manner as well, for example by means of a transmitter positioned in the supporting member, and the signal transmitted by said transmitter is received in a receiver positioned in the vicinity of the supporting member.
  • a beam-like data transmission means perpendicularly to the width of the supporting member and transmitting information in a contactless or contact-oriented manner.
  • the tension profile of the endless supporting member determined from the measurements of the supporting member, it is possible to determine the cross-directional linear load profile of the reeling nip of the belt reeler, by means of which it is possible to determine the structure of the growing machine reel.
  • it is possible to determine other parameters of the machine reel such as the diameter profile of the machine reel forming in the reeling.
  • the tension profile of the supporting member can be utilized in monitoring the condition of the supporting member, in monitoring the position of the supporting member and in determining the average tension of the supporting member. If the measured variable is the cross-directional linear load profile of the reeling nip, the above-mentioned parameters can be determined directly from the measurement results.
  • the endless supporting member travels in the machine direction of the paper machine guided by at least two guide rolls.
  • at least one guide roll used in the measurement is after the reeling nip in the machine direction. It has surprisingly been noted that the form of the surface of the growing machine reel, i.e.
  • the bumps and dents in the reel and therefore also the cross-directional linear load profile of the reeling nip in the longitudinal direction of the machine reel (in the CD-direction) is copied in the reeling nip to the endless supporting member that is in contact with the machine reel, and therefore it shows in the tension measurement results of the supporting member measured after the reeling nip and the tension profile formed from them.
  • the determination of the tension profile of the supporting member can also take place by placing the above-mentioned measuring sensors to two guide rolls in such a manner that one of the rolls is located before the reeling nip and the other one after it, in which case the measuring values proportional to the tension provided by the rolls and the tension profiles formed of them can be compared and the tension profile of the supporting member can be determined on the basis of their difference. If the tension profile is used in determining the cross-directional linear load profile of the reeling nip, it is advantageous to use the tension profile formed of at least one of the measuring results attained from the roll comprising a measuring sensor, which roll directs the supporting member and is within the loop of the supporting member.
  • Another tension profile used in the determination is formed on the basis of other measurements received from the guide roll that is in contact with the belt.
  • the tension profile of the supporting member and the cross-directional linear load profile of the reeling nip can be determined from the difference between the thus formed tension profiles.
  • the cross-directional tension profile of the supporting member is determined on the basis of the measuring results of measuring sensors placed in at least one guide roll directing the supporting member, and so that the reeling nip is closed, i.e. the forming machine reel is in contact with the supporting member as well as without the machine reel contacting the supporting member.
  • the formed cross-directional tension profile of the supporting member loaded with a machine reel to such a tension profile that is formed of an unloaded supporting member, it is possible to determine the form profile of the surface of the machine roll, i.e. the structure of the roll from these.
  • the cross-directional linear load profile of the reeling nip is also provided by the same difference.
  • the tension profile of the supporting member determined from the variables proportional to the tension of the supporting member or the measured cross-directional linear load profile of the reeling nip can also be utilized in monitoring the condition of the supporting member. Local wearing of the texture of the supporting member causes a change in the tension profile or the cross-directional linear load profile of the reeling nip, which can be recognised from the profile and thus information on the condition of the supporting member can be received. In this manner, it is possible to monitor the condition of the supporting member and to anticipate, for example, the need for changing the supporting member, i.e. the belt or the wire, before the worn or damaged supporting member has time to cause damages to the reeled web or other damages.
  • the tension profile of the supporting member determined from the variables proportional to the tension of the supporting member or the measured cross-directional linear load profile of the reeling nip according to the invention can also be applied in the belt reeler in monitoring the position of the supporting member in the longitudinal direction of the roll directing the supporting member and through that in adjusting the controller of the supporting member as well.
  • the method of the patent publication FI-20012528 that is known as such can be applied here.
  • the measurement of variables proportional to the tension of the supporting member according to the invention and the determination of the tension profile of the supporting member is simple and fast.
  • the sensors used in the measurement do not take space in the vicinity of the reeler and they can be easily placed to the guide rolls in contact with the supporting member, and they do not cause wearing of the supporting member.
  • the sensors When the sensors have been placed to the supporting member, it is possible to measure the cross-directional linear load profile of the reeling nip between the reel and the supporting member directly without measuring the variables proportional to belt tension.
  • a calculatory conversion from the tension profile of the supporting member to the cross-directional linear load profile is not needed either.
  • the invention utilizes in a new and excellent manner the methods known as such for measuring the variables proportional to the tension of the texture of a paper machine and for determining the tension profile, or for measuring the cross-directional linear load profile of the reeling nip, and introduces new way to monitor the parameters connected to the operation of the supporting member, such as the condition of the supporting member and its position on the guide rolls.
  • Fig. 1 illustrates a continuously operating reeler, where a paper web W, which is normally several meters wide and comes from a preceding section of a paper machine or a finishing apparatus for paper, travels via a reeling nip N1 to a reel R.
  • Said reeler is a so-called belt reeler in which the reeling nip is formed by means of a flexible supporting member 1 in the form of an endless loop, such as a belt or a wire.
  • the supporting member 1 is guided via two guide rolls 2 and 3, at the location of each of which the run of the member 1 turns to the opposite direction.
  • the first guide roll 2 can form a "hard nip" with the reel being started at the initial stage of the reeling in such a manner that the supporting member 1 is in contact with the reel at a point where the member travels supported by the guide roll 2 on the surface of the roll.
  • the second guide roll 3 can be a driven roll, i.e. a traction roll, or separate drives can be arranged for both rolls.
  • the web travels guided by the supporting member 1 onto the machine reel R, which is formed around a reeling core, i.e. a reel spool 5 rotatable with a center drive of its own.
  • the reel spool 5 it is possible for the reel spool 5 to move in the machine direction with respect to the loop of the supporting member 1, and this is arranged in such a manner that the bearing housings at the ends of the reel spool that enable the rotation of the reel spool 2 are at both ends of the reel spool supported on carriages, i.e. transfer devices 6 that move on supporting structures 7.
  • the bearing housings at the ends of the reel spool that enable the rotation of the reel spool 2 are at both ends of the reel spool supported on carriages, i.e. transfer devices 6 that move on supporting structures 7.
  • the reel change station there is also a storage of empty reel spools 5 (not shown), from which the rolls are brought to the change station at the location of the first guide roll 2 in order to change the web going to the machine reel R that is becoming full.
  • the reel change takes place at production speed i.e. the paper web passed at high speed to the full reel is changed to travel onto a new, empty reel spool brought to the
  • the endless belt loop 1 is also in contact with a guide roll 4, which can be provided with a drive or which can be driveless, and which guides the supporting member 1 from below the loop of the supporting member.
  • Measuring means 9 measuring variables proportional to the tension of the supporting member are placed to at least one guide roll 2, 3 and/or 4.
  • the measuring sensor 9 is, for example, a known sensor operating on piezoelectric principle, for example an EMFi film or PVDF film, which are capable of changing a mechanical input variable, such as pressure or load into an electric output variable that can be processed by means of measurement technology.
  • the gradient of the rotation angle of the roll of the spiral in selected as suitable, for example according to the overlap angle of the belt loop, i.e. the supporting member 1. If necessary, for example in order to specify the measurement or in case an individual sensor is broken, several sensor spirals can be installed side by side over the length of the roll.
  • An advantage of the in a spiral-like manner placed, band-like measuring sensors is that only one measuring channel per spiral is needed for transferring the measurement data out of the roll, which may take place wirelessly, for example by means of a telemetry transmitter 10 place in the roll.
  • the measurement data signal is received with a receiver 11.
  • the receiver in itself can also comprise a data processing unit, where the measurement signals are processed and the tension profile is determined and the desired parameters are determined from it or the measurement signal can be transferred from the receiver 11 to the data processing unit 12 for processing.
  • the EMFi film or the PVDF film can be placed in the roll also by placing individual film strips sequentially in a spiral-like manner to circle the roll over its entire length.
  • the strip-like measuring sensors can also be positioned in the guide roll sequentially in the axial direction of the roll, as shown in Fig. 3 . Thus, each sensor strip produces a measurement signal that represents the pressure exerted on the sensor element at the location of said strip, and by combining the measurements the tension profile of the supporting member is produced.
  • the strip-like sensors each require a separate measurement channel.
  • the guide roll used in the measuring can be any of the guide rolls of Fig. 1 . It can therefore also be a drive roll, where the measuring sensors 9 are placed. It is most advantageous to use the guide roll located after the reeling nip N1, i.e. roll 3, because, for example, local bumps in the machine reel are copied to the tension profile of the belt in the reeling nip and thus appear easily in the tension profile of the supporting member.
  • Determining the cross-directional linear load profile of the reeling nip N1 takes place in the data processing unit 12 marked in Fig. 1 from the cross-directional tension profile of the supporting member 1 formed on the basis of the measurements from the guide roll in a calculatory manner by using transfer functions or, in the simplest way, by means of scaling factors.
  • Fig. 1 also shows a new reel spool 5, which is still in a primary reeling device 8, where it is accelerated to web speed by using the primary reeling device and brought in contact with a guide roll 2, in which case a so-called hard nip has been formed.
  • the variables proportional to the tension of the supporting member, and thus also the linear load profile of the reeling nip can be attained directly from the measuring sensor 9 attached to the roll 2.
  • the machine reel R is transferred to the transfer devices 6 and transferred forward in the machine direction along the supporting member 1.
  • the measurement of variables is performed at the guide roll 2 or 3 closest to the machine reel R, which roll is equipped with a measuring sensor, most advantageously at the guide roll 3 that is after the reeling nip N1 in the machine direction.
  • Fig. 4 shows a supporting member 1, whose both guide rolls 2 and 3 are equipped with measuring means 9 and at least roll 3 is a drive roll. Both rolls 2 and 3 are placed inside the loop of the supporting member 1.
  • the machine reel R being formed is in nip contact with the supporting member 1, thus forming a reeling nip N1.
  • One change in the tension profile of the reeling nip N1, which has transferred to the supporting member in the reeling nip N1 has been illustrated with a wave form 12. Therefore, measured variables proportional to the tension are attained from both guide rolls 2 and 3, of which variables are determined tension profiles, whose difference can be used to determine the tension profile, and further from that, the cross-directional linear load profile of the reeling nip N1.
  • the measurement results from it and the tension profile formed from them are used as a reference profile, in which case the actual tension profile in the reeling nip is determined from the variables measured after the reeling nip and the difference of the tension profile and reference profile determined from them.
  • the measurement results from the guide roll 2 it is also possible to use the measurement results from the guide roll 2 together with the measurement result from the guide roll 4 (not shown) placed advantageously below the supporting member 1.
  • Fig. 5 shows a possibility for measuring variables proportional to the tension of the supporting member, wherein the measuring sensor 9 is arranged to the supporting member 1.
  • the measuring sensors When the measuring sensors are arranged to the supporting member, they measure variables proportional to the tension of the supporting member in the reeling nip N1, i.e. when the measuring sensors 9 arranged to the supporting member 1 and the reel spool 5 or the machine reel R that is being formed are in contact with each other.
  • the determination of the tension profile from the measurement results takes place is the data processing unit, as presented above. It is possible to obtain the cross-directional linear load profile of the reeling nip directly from these measurements.
  • point-like sensors 9 When point-like sensors 9 are used in the measurement, they are arranged in a row within suitable intervals from each other, diagonally across the width of the supporting member 1, as shown in the figure. When a film-like narrow band sensor 9 is used, it is also positioned directly in a diagonal position across the width of the supporting member. This alternative is shown in Fig. 5 as well.
  • the straight line formed both by the point-like and band-like sensors forms an angle ⁇ with the edge of the supporting member 1. The width of the angle is selected in accordance with the desired measurement resolution.
  • Fig. 6 also shows the positioning of measuring sensors 9 composed of strain gauges, which is conducted by positioning them successively, within a fixed distance from each other, and as shown in the preceding alternative, perpendicularly across the width of the supporting member 1. Strain gauges are able to separate a tension state in at least two different directions T 1 and T 2 , which are illustrated with arrows in Fig. 6 .
  • the supporting member 1 can also be formed entirely so that it can measure variables proportional to the tension of the supporting member and/or the cross-directional linear load profile of the reeling nip N1.
  • the supporting member can, for example, be formed of several overlapping layers, at least one of which operates as the sensor performing the measurements.
  • Fig. 7 shows a cross-section of a supporting member 7 formed in layers, which supporting member comprises surface layers 13, between which there is a sensor layer 14 operating as a sensor.
  • the sensor layer 14 can be, for example, an EMFi film, which is placed between protective layers. The sensor layer can naturally be placed elsewhere than between the layers as well.
  • curve A shows the cross-sectional tension profile of the supporting member 1 loaded with a growing machine reel R, which profile is determined with some variable proportional to the tension or the supporting member, measured with a guide roll 2, 3 or 4.
  • Curve B shows the tension profile of an unloaded supporting member 1 determined from the measurements of the same guide roll
  • curve C shows the final tension profile of the growing machine reel R determined from the difference of curves A and B, i.e. the form profile of the surface.
  • the measurement of the unloaded supporting member 1 can also be performed by loading the supporting member 1 with an empty reel spool 5. Since the reel spool is empty, the effect of the paper web W being reeled does not show in the tension profile B.
  • the measurement can also be performed by using more than one guide rolls equipped with a measuring sensor, in which case the determination of the tension profile taking place on the basis of the measurements is more reliable.
  • the cross-directional measurement results of the tension profile of the supporting member or the cross-directional linear load profile of the reeling nip determined in connection with the invention can also be utilized in monitoring the supporting member. This possibility provides and great advantage, because the purchase and assembly expenses of separate systems are thus avoided and space is saved, because there is no need to assemble separate apparatuses for monitoring the supporting member.
  • the measurement results can, for example, be utilized in monitoring the condition of the supporting member 1, which is illustrated in Fig. 9 .
  • the wear of the supporting member, changes in the porosity or thickness, blockages in the openings between the wire threads forming the supporting member, and the wire threads breaking cause changes in the tension profile or in the cross-directional linear load profile of the reeling nip, where they can be detected.
  • any of the measurement results of the variables proportional to the tension of the guide roll 2, 3 or 4, which is in contact with the supporting member 1 and to which is placed a measuring sensors over its entire length, and the tension profile of the supporting member attained from that, or the cross-directional linear load profile measured by measuring sensor attached to the supporting member in the reeling nip can be used in monitoring the condition of the supporting member.
  • the measurement of the variables proportional to the tension of the supporting member performed with the guide rolls for monitoring the condition of the supporting member are performed when the reeling nip N1 is open, i.e. when the reel spool 5 or the growing machine reel R are not in contact with the supporting member 1.
  • curve D represents a tension profile formed of a supporting member 9 in a good condition on the basis of measurements or a cross-directional linear load profile of the reeling nip
  • curve E represents the tension/nip pressure profile curve of a supporting member that is worn or has experienced changes, wherein a change in the tension/nip pressure profile, which is marked in the figure with an arrow, can be detected.
  • identifying a change it is possible to apply, for example, a neural network, which learns to identify the effect of the wear or failure of the supporting member. Processing the measuring results and determining the condition monitoring parameters of the supporting member takes place in the data processing unit.
  • One possibility to utilize the measurement results of the tension profile of the supporting member determined in connection with the invention or the cross-directional linear load profile of the reeling nip is to monitor the location of the edges of the supporting member.
  • the measurement results of the variables proportional to the tension of any guide roll 2, 3 or 4, which is in contact with the supporting member 1 and in which is placed a measuring sensor over the entire length of the roll can be used in a manner known as such from the patent publication FI-20012528 for monitoring the position of the edge of the supporting member in the longitudinal direction of the guide roll.
  • the measurement can be performed when the reeling nip N1 is either open or closed.
  • the cross-directional linear load profile measured with measuring sensors attached to the supporting member in the reeling nip can be used for this purpose. In Fig.
  • curve F shows the CD-profile of the machine-directional tension determined from the supporting member 1 on the basis of the measurements.
  • the dashed lines G and G' illustrate the location of the edges of the supporting member 1. If the supporting member travels over the allowed edge limits, it is easily and quickly detected from the profile and correction procedures can be performed.
  • the location of the edges of the supporting member is also possible to monitor by assembling separate, short sensor spirals at both ends of the guide roll, which monitor the location of the edges of the supporting member both at their own end of the roll, but do not extend from one end of the guide roll to the other.
  • the supporting member 1 can, for example, be supported by more guide rolls than what is presented above in the description. Further, measuring sensors can be placed to all guide rolls or a part of the rolls can be without a measuring sensor, in which case they operate only as rolls guiding the belt loop.
  • the invention can be applied in reelers of machines manufacturing paper, paperboard, tissue or a similar web-like product and in finishing devices connected to them.

Landscapes

  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Paper (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Traffic Control Systems (AREA)
  • Tension Adjustment In Filamentary Materials (AREA)
  • Basic Packing Technique (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Claims (24)

  1. Procédé dans une enrouleuse, dans lequel une ligne de contact d'enroulement (N1) est formée par un noyau d'enroulement (5) ou une bobine croissante (R) de machine et au moins une boucle d'un élément support sans fin (1) qui est sensiblement continu dans le sens axial du noyau d'enroulement (5), caractérisé en ce que le profil de charge linéaire transversal de la ligne de contact d'enroulement (N1) est mesuré au moyen d'au moins un moyen de mesure (9) qui est agencé sur l'élément support (1).
  2. Procédé selon la revendication 1, caractérisé en ce que le moyen de mesure (9) est composé d'au moins un capteur étroit de type bande.
  3. Procédé selon la revendication 1, caractérisé en ce que le moyen de mesure (9) est composé de plusieurs capteurs séparés.
  4. Procédé selon la revendication 1, caractérisé en ce que le moyen de mesure (9) est formé de l'un des suivants : un capteur piézoélectrique, un capteur à piézo-cristal, un capteur capacitif, résistif, ou inductif, un capteur de mesure de charge et un capteur de mesure de force.
  5. Procédé selon la revendication 2 ou 3, caractérisé en ce que le moyen de mesure (9) encercle le cylindre de guidage (2, 3, 4) d'une manière de type en spirale sensiblement sur la totalité de sa longueur.
  6. Procédé selon la revendication 3, caractérisé en ce que le moyen de mesure (9) s'étend sensiblement sur la totalité de la longueur du cylindre de guidage (2, 3, 4) en ligne droite dans son sens axial.
  7. Procédé selon la revendication 1, caractérisé en ce que le moyen de mesure s'étend diagonalement selon une ligne droite sur la largeur de l'élément support (1), laquelle ligne forme un angle α avec le bord de l'élément support (1).
  8. Procédé selon la revendication 1, caractérisé en ce que le moyen de mesure (9) s'étend perpendiculairement sur la largeur de l'élément support (1).
  9. Procédé selon la revendication 1, caractérisé en ce que le moyen de mesure (9) est agencé à l'intérieur de la structure de l'élément support (1).
  10. Procédé selon la revendication 1, caractérisé en ce que le profil de charge linéaire transversal de la ligne de contact d'enroulement (N1) est mesuré de façon répétée et au moyen de celui-ci, l'un des suivants est surveillé : l'état de l'élément support (1) et la position de l'élément support (1) dans le sens longitudinal du cylindre de guidage (2, 3, 4).
  11. Procédé selon la revendication 1, caractérisé en ce que le profil de charge linéaire transversal de la ligne de contact d'enroulement (N1) est mesuré de façon répétée et au moyen de celui-ci, l'un des suivants est surveillé : la tension moyenne de l'élément support sans fin (1) et le profil de diamètre de la bobine croissante (R) de machine se formant lors de l'enroulement.
  12. Procédé selon la revendication 1, caractérisé en ce que la largeur de l'élément support sans fin (1) est sensiblement la même que la largeur de la bande (W) devant être enroulée.
  13. Enrouleuse, dans laquelle une ligne de contact d'enroulement (N1) est formée par un noyau d'enroulement (5) ou une bobine croissante (R) de machine et au moins une boucle d'un élément support sans fin (1) qui est sensiblement continu dans le sens axial du noyau d'enroulement (5), caractérisée en ce qu'au moins un moyen de mesure (9) est agencé sur l'élément support afin de mesurer le profil de charge linéaire transversal de la ligne de contact d'enroulement (N1).
  14. Enrouleuse selon la revendication 13, caractérisée en ce que le moyen de mesure (9) est composé d'au moins un capteur étroit de type bande.
  15. Enrouleuse selon la revendication 13, caractérisée en ce que le moyen de mesure (9) est composé de plusieurs capteurs séparés.
  16. Enrouleuse selon la revendication 13, caractérisée en ce que le moyen de mesure (9) est formé de l'un des suivants : un capteur piézoélectrique, un capteur à piézo-cristal, un capteur capacitif, résistif, ou inductif, un capteur de mesure de charge et un capteur de mesure de force.
  17. Enrouleuse selon la revendication 14 ou 15, caractérisée en ce que le moyen de mesure (9) est agencé pour encercler le cylindre de guidage (2, 3, 4) d'une manière de type en spirale sensiblement sur la totalité de sa longueur.
  18. Enrouleuse selon la revendication 15, caractérisée en ce que le moyen de mesure (9) est agencé pour s'étendre sensiblement sur la totalité de la longueur du cylindre de guidage (2, 3, 4) en ligne droite dans son sens axial.
  19. Enrouleuse selon la revendication 13, caractérisée en ce que le moyen de mesure (9) est agencé selon une ligne droite, qui s'étend diagonalement sur la largeur de l'élément support (1), et forme un angle α avec le bord de l'élément support (1).
  20. Enrouleuse selon la revendication 13, caractérisée en ce que le moyen de mesure (9) est agencé perpendiculairement sur la largeur de l'élément support (1).
  21. Enrouleuse selon la revendication 13, caractérisée en ce que le moyen de mesure (9) est agencé à l'intérieur de la structure de l'élément support (1).
  22. Enrouleuse selon la revendication 13, caractérisée en ce que le moyen de mesure (12) est en outre agencé pour surveiller l'un des suivants sur la base du profil de charge linéaire transversal de la ligne de contact d'enroulement (N1) mesuré de façon répétée : l'état de l'élément support sans fin et la position de l'élément support sans fin (1) dans le sens longitudinal du cylindre de guidage (2, 3, 4).
  23. Enrouleuse selon la revendication 13, caractérisée en ce que le moyen de mesure (12) est en outre agencé pour déterminer l'un des suivants sur la base du profil de charge linéaire transversal de la ligne de contact d'enroulement (N1) mesuré de façon répétée : la tension moyenne de l'élément support sans fin (1) et le profil de diamètre de la bobine croissante (R) de machine se formant lors de l'enroulement.
  24. Enrouleuse selon la revendication 13, caractérisée en ce que la largeur de l'élément support sans fin (1) est sensiblement la même que la largeur de la bande (W) étant enroulée.
EP05761410A 2004-06-30 2005-06-30 Procede dans une enrouleuse et enrouleuse Not-in-force EP1773701B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10175579A EP2256074A1 (fr) 2004-06-30 2005-06-30 Procédé dans une enrouleuse et enrouleuse

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20045254A FI118727B (fi) 2004-06-30 2004-06-30 Menetelmä rullaimessa ja rullain
PCT/FI2005/050254 WO2006003258A2 (fr) 2004-06-30 2005-06-30 Procede dans une enrouleuse et enrouleuse

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP10175579.1 Division-Into 2010-09-07

Publications (2)

Publication Number Publication Date
EP1773701A2 EP1773701A2 (fr) 2007-04-18
EP1773701B1 true EP1773701B1 (fr) 2011-03-23

Family

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Family Applications (2)

Application Number Title Priority Date Filing Date
EP05761410A Not-in-force EP1773701B1 (fr) 2004-06-30 2005-06-30 Procede dans une enrouleuse et enrouleuse
EP10175579A Withdrawn EP2256074A1 (fr) 2004-06-30 2005-06-30 Procédé dans une enrouleuse et enrouleuse

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP10175579A Withdrawn EP2256074A1 (fr) 2004-06-30 2005-06-30 Procédé dans une enrouleuse et enrouleuse

Country Status (6)

Country Link
US (1) US20090166465A1 (fr)
EP (2) EP1773701B1 (fr)
AT (1) ATE502886T1 (fr)
DE (1) DE602005027075D1 (fr)
FI (1) FI118727B (fr)
WO (1) WO2006003258A2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI118728B (fi) 2004-06-30 2008-02-29 Metso Paper Inc Menetelmä ja laitteisto rullausnipin nippiprofiilin säätämiseksi
FI122978B (fi) 2010-10-25 2012-09-28 Metso Paper Inc Menetelmä kuiturainakoneen kiinnirullauksessa ja kiinnirullauskonsepti
DE102019120122A1 (de) * 2019-07-25 2021-01-28 Saint-Gobain Isover G+H Ag Verfahren zum Aufwickeln einer Materialbahn, insbesondere aus einem kompressiblen, zusammenpressbaren Material sowie Vorrichtung zum Durchführen des Verfahrens

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US4476076A (en) * 1980-01-14 1984-10-09 Whitney & Company, Inc. Method of open forming an expanded polyester resin article involving a controlled induction period
FI74260C (fi) * 1985-11-20 1988-01-11 Valmet Paper Machinery Inc Upprullningsanordning.
FI81770C (fi) * 1987-05-20 1990-12-10 Valmet Paper Machinery Inc Foerfarande vid styrning av pappers rullstol.
US5048353A (en) * 1990-03-01 1991-09-17 Beloit Corporation Method and apparatus for roll profile measurement
FI91383C (fi) * 1990-10-26 1997-01-22 Valmet Paper Machinery Inc Menetelmä kiinnirullauksessa
US5150850A (en) * 1991-05-10 1992-09-29 Beloit Corporation Method for winding a traveling web on a belted two drum wound web roll winder
FI89308C (fi) * 1992-09-16 1993-09-10 Valmet Paper Machinery Inc Foerfarande och anordning foer maetning av nypkraften och/eller -trycket av ett nyp som bildas av en roterande vals eller ett band som anvaends vid framstaellning av papper
DE4401959C2 (de) 1994-01-24 1996-07-25 Voith Gmbh J M Tragtrommelroller für eine Papiermaschine
FI106248B (fi) 1997-02-13 2000-12-29 Valmet Corp Kiinnirullain ja menetelmä paperirainan tai vastaavan kiinnirullauksessa
CA2328189A1 (fr) 1997-06-02 1998-12-10 Andrew D. White Procede et appareil pour enrouler une bande de papier en mouvement
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FI113804B (fi) 2001-03-26 2004-06-15 Metso Automation Oy Menetelmä ja laitteisto jatkuvan liikkuvan elimen kireyden mittaamiseksi
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Also Published As

Publication number Publication date
EP2256074A1 (fr) 2010-12-01
WO2006003258A3 (fr) 2006-04-13
US20090166465A1 (en) 2009-07-02
WO2006003258A2 (fr) 2006-01-12
ATE502886T1 (de) 2011-04-15
FI20045254A (fi) 2005-12-31
FI20045254A0 (fi) 2004-06-30
DE602005027075D1 (de) 2011-05-05
FI118727B (fi) 2008-02-29
EP1773701A2 (fr) 2007-04-18

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