US20100139880A1 - Wireless moisture measurement for the roll coatings of fiber web machines and measuring equipment - Google Patents

Wireless moisture measurement for the roll coatings of fiber web machines and measuring equipment Download PDF

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Publication number
US20100139880A1
US20100139880A1 US12/450,178 US45017808A US2010139880A1 US 20100139880 A1 US20100139880 A1 US 20100139880A1 US 45017808 A US45017808 A US 45017808A US 2010139880 A1 US2010139880 A1 US 2010139880A1
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United States
Prior art keywords
roll
radio
fiber web
coating
moisture
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Abandoned
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US12/450,178
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English (en)
Inventor
Mikko Vuolanto
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Valmet Technologies Oy
Original Assignee
Metso Paper Oy
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Filing date
Publication date
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Assigned to METSO PAPER, INC. reassignment METSO PAPER, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: VUOLANTO, MIKKO
Publication of US20100139880A1 publication Critical patent/US20100139880A1/en
Assigned to VALMET TECHNOLOGIES, INC. reassignment VALMET TECHNOLOGIES, INC. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: METSO PAPER, INC.
Abandoned legal-status Critical Current

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    • 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
    • D21F7/003—Indicating or regulating the moisture content of the layer
    • 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
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • D21G1/02—Rolls; Their bearings

Definitions

  • the invention relates to measuring moisture in a fiber web machine. More precisely, the invention relates to measuring moisture in a coated roll wirelessly, particularly by utilizing a radio-frequency identifier.
  • Modern fiber web machines such as paper, board, tissue and finishing machines or their sub-units often include rolls that are coated by a polymer material.
  • coating materials are epoxy, rubber, polyurethane and fiber-reinforced polymer coatings, i.e. composite coatings.
  • Particularly problematic coatings with respect to moisture absorption are polyurethane coatings, and to some extent also epoxy coatings, especially their fiber-reinforced varieties.
  • the object of the invention is a more precise way of defining moisture in the coating of a roll.
  • a fiber web machine that comprises a radio-frequency identifier, so that moisture can be measured from roll or from roll coating of the fiber web machine.
  • a fiber web machine roll that comprises a roll frame and a polymer coating on the frame, the roll including means for measuring moisture wirelessly from the roll or from the roll coating.
  • a method for measuring moisture from a coating of a roll in a fiber web machine in which method data from the roll or from the roll coating is received wirelessly for defining the moisture content.
  • a method for defining moisture from a coating of a roll in a fiber web machine in which method data from the roll or from the roll coating is transmitted wirelessly, said data indicating the moisture of the roll coating or the roll.
  • the roll can thus be utilized better than in the prior art. From the roll, it can be read or otherwise detected when it needs drying. In addition, the drying times can be optimized. Also the number of cases where the roll is broken due to corrosion in the roll frame can be remarkably reduced, and at best completely eliminated.
  • FIG. 1 is a schematical illustration describing a roll in a fiber web machine provided with roll coating; radio-frequency remote identifiers are also illustrated according to an embodiment of the invention,
  • FIG. 2 is a cross-sectional illustration of a roll, where both the roll coating and the radio-frequency remote identifiers are visible according to embodiments of the invention.
  • FIG. 3 illustrates an example of the layout of a radio-frequency remote identifier.
  • the various embodiments of the invention are connected to a fiber web machine.
  • the fiber web machine comprises, i.e. includes, a radio-frequency identifier in the roll coating of a fiber web machine, or in the vicinity of said coating.
  • the radio-frequency identifier is an RFID tag that measures or transmits the moisture content in the roll coating or in the vicinity of the roll coating.
  • the various embodiments of the invention can contain many different additional features or properties.
  • FIG. 1 illustrates one of the numerous embodiments of the invention.
  • the schematical illustration shows a fiber web machine roll 100 comprising a roll frame and either a penetrating axle or axle stubs, both of which are referred to by the reference number 103 .
  • the roll frame 103 can be made of metal, such as cast iron or steel, or of fiber reinforced plastic composite.
  • the roll 100 is provided with a roll coating 101 .
  • the roll coating can be for example polyurethane, and typically it is connected to the roll frame 100 by a glue layer or another adhesive layer.
  • a radio-frequency identifier 104 is in FIG. 1 shown as enlarged. The radio-frequency identifier 104 is located for example on the boundary surface of the roll coating 101 and the roll 100 .
  • the remote identifier 104 can also be placed in the roll coating, in the roll 100 or in the vicinity thereof.
  • Several radio-frequency identifiers 104 can be placed in the roll coating, in the vicinity thereof and on the roll, so that the moisture in the roll, in the roll frame and/or in the roll coating 101 can be detected.
  • FIG. 1 there are shown three radio-frequency remote identifiers 104 . This is only an illustrative example, and the number of radio-frequency identifiers can vary from one up to a considerable number.
  • FIG. 2 illustrates an embodiment of the invention in a cross-sectional image of the roll 100 .
  • the roll coating 101 and the radio-frequency identifiers 104 are visible according to an embodiment of the invention.
  • FIG. 2 is an illustration in principle of the various different alternatives for placing the identifiers 104 of the example in the roll 100 .
  • the radio-frequency identifiers 104 can also be placed in a regular order on the roll 100 . Further, the identifiers 104 can be placed in predetermined locations on the roll 100 . It is advantageous to place the identifiers 104 in the roll 100 axially at several points, at different radial depths, in the roll coating 101 and on the boundary surface.
  • the radio-frequency identifier 104 can also be embedded in the roll frame. Now the roll frame can be made for example of fiber reinforced composite or a corresponding material.
  • radio-frequency identifiers 104 for instance RDIF-tags.
  • the radio-frequency identifiers 104 react to moisture by switching off their operation, when the percentage of moisture surpasses a given value, for instance when the percentage of moisture grows too high. Consequently, by reading the radio-frequency identifiers 104 , it is easy to observe the proceeding of moisture in the structure, respectively in the roll 100 , in the roll frame 102 and in the coating 101 .
  • the moisture properties of the roll 100 and the roll coating 101 can be measured and defined, even at a distance.
  • Respectively roll-specific and/or position-specific working and/or drying times can be defined for the roll 100 .
  • the radio-frequency identifier 104 or tag is thus arranged to function as a moisture fuse.
  • the radio-frequency identifier 104 for example an RFID tag, includes or comprises an integrated moisture sensor.
  • the radio-frequency identifier 104 includes or comprises an integrated moisture sensor.
  • an embodiment of the invention is connected to the reading technique of a radio-frequency identifier 104 , where a radio-frequency identifier 104 is used as a transfer path or transfer medium.
  • a radio-frequency identifier 104 is used as a transfer path or transfer medium.
  • the RFID reading technique is used so that RFID reading standards are employed as a transfer path for sensor data.
  • a separate moisture detector (alternatively called moisture sensor).
  • the moisture detector (not illustrated) is connected to a radio-frequency identifier 104 .
  • the applied transmission protocol is for example the NFC transmission protocol, which is an expanded 13.56 MHz RFID standard.
  • the radio-frequency identifier 104 is thus arranged to indicate the moisture of the roll coating.
  • Radio-frequency identification i.e. for instance RFID (Radio frequency identification)
  • RFID Radio frequency identification
  • An RFID identifier is a small device that can be included in the product in the manufacturing step, for instance in connection with the casting of the coating, or it can be attached thereto afterwards, for instance with glue or adhesive tape, etc.
  • RFID identifiers include an antenna in order to be able to transmit and receive radio-frequency requests to and from an RFID transceiver.
  • RFID identifiers can be active, passive or semi-passive.
  • Passive RFID identifiers do not have their own power source.
  • the extremely low electric current required for the use of the device is induced by the radio-frequency scanning received in the antenna, by which scanning the identifier is capable of sending a response.
  • the response of a passive RFID identifier is short, typically an ID number.
  • the device lacks its own power source, it is made fairly small: for example, an RFID can be placed even under the skin, having a size of for example 0.4 mm ⁇ 0.4 mm, and being thinner than a sheet of paper, i.e. in practice nearly invisible.
  • the reading ranges of passive identifiers vary between 0 mm and 5 meters.
  • a semi-passive RFID identifier includes a power source but does not have an active transmitter. However, the own power source results in a larger operational range than with a passive identifier and enables a wider functionality, including the storage of data in the specific memory (ROM, WORM) of the identifier.
  • active RFID identifiers include a power source, and they can have a longer range and a bigger memory than passive identifiers. They can also record additional data sent by a transceiver. At present, the smallest active RFID identifiers are more or less of the same size as a coin, but thinner. With many active identifiers, their reading ranges are tens of meters, and their battery life extends to several years.
  • a radio-frequency identifier is an advantageous and cost-effective method for measuring moisture from the coating of a fiber web machine roll.
  • Wirelessness constitutes a particular advantage in those positions of a fiber web machine where the roll surface is subjected to stronger wet exposure, for instance in the suction, control and lead rollers of the wire element or the press, or at the coating/web sizing station, but is also handy in the conditions of the dry end of the machine, where the roll may be exposed to steam.
  • radio-frequency identifier for example an RFID identifier
  • radio frequency areas can be used: high-frequency identifiers (13.56 MHz), UHF identifiers (868-956 MHz) and microwave identifiers (2.45 GHz) or higher frequencies.

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  • Arrangements For Transmission Of Measured Signals (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
US12/450,178 2007-04-05 2008-04-04 Wireless moisture measurement for the roll coatings of fiber web machines and measuring equipment Abandoned US20100139880A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI20070269A FI20070269A (fi) 2007-04-05 2007-04-05 Langaton kosteudenmittaus kuiturainakoneen telapinnoittteisiin ja laitteisto tähän
FI20070269 2007-04-05
PCT/FI2008/050164 WO2008122693A1 (en) 2007-04-05 2008-04-04 Wireless moisture measurement for the roll coatings of fiber web machines and measuring equipment

Publications (1)

Publication Number Publication Date
US20100139880A1 true US20100139880A1 (en) 2010-06-10

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US12/450,178 Abandoned US20100139880A1 (en) 2007-04-05 2008-04-04 Wireless moisture measurement for the roll coatings of fiber web machines and measuring equipment

Country Status (5)

Country Link
US (1) US20100139880A1 (de)
AT (2) AT507150A2 (de)
DE (1) DE112008000817T5 (de)
FI (1) FI20070269A (de)
WO (1) WO2008122693A1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170044714A1 (en) * 2014-09-22 2017-02-16 The Procter & Gamble Company Method for making a papermaking belt
US10161895B2 (en) 2014-12-23 2018-12-25 3M Innovative Properties Company Electronic moisture sensor
US11079340B2 (en) 2014-12-23 2021-08-03 3M Innovative Properties Company Methods of monitoring wetness utilizing a resonant circuit
DE102021114931A1 (de) 2021-06-10 2022-12-15 Voith Patent Gmbh Walzenmantel mit Beschädigungsfrüherkennung

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008044343A1 (de) * 2008-12-04 2010-06-10 Voith Patent Gmbh Automatisierungssystem
DE102016110416B4 (de) * 2016-06-06 2020-06-04 Turck Holding Gmbh Feuchteleiter und Verfahren zu dessen Herstellung
JP7194930B2 (ja) 2018-08-15 2022-12-23 公立大学法人大阪 水分検知センサおよび車輌の座席シート用表皮材

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5703574A (en) * 1993-03-17 1997-12-30 Valmet Corporation Method and device for transferring a measurement signal from a revolving roll used in a paper making machine
US20070169060A1 (en) * 2004-05-19 2007-07-19 Boek Karl J Production optimization

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7392715B2 (en) * 2004-10-29 2008-07-01 Stowe Woodward Ag Wireless sensors in roll covers

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5703574A (en) * 1993-03-17 1997-12-30 Valmet Corporation Method and device for transferring a measurement signal from a revolving roll used in a paper making machine
US20070169060A1 (en) * 2004-05-19 2007-07-19 Boek Karl J Production optimization

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170044714A1 (en) * 2014-09-22 2017-02-16 The Procter & Gamble Company Method for making a papermaking belt
US10161895B2 (en) 2014-12-23 2018-12-25 3M Innovative Properties Company Electronic moisture sensor
US11079340B2 (en) 2014-12-23 2021-08-03 3M Innovative Properties Company Methods of monitoring wetness utilizing a resonant circuit
DE102021114931A1 (de) 2021-06-10 2022-12-15 Voith Patent Gmbh Walzenmantel mit Beschädigungsfrüherkennung

Also Published As

Publication number Publication date
WO2008122693A1 (en) 2008-10-16
FI20070269A0 (fi) 2007-04-05
AT12263U1 (de) 2012-02-15
AT507150A2 (de) 2010-02-15
FI20070269A (fi) 2008-10-06
DE112008000817T5 (de) 2010-02-11

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AS Assignment

Owner name: METSO PAPER, INC.,FINLAND

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:VUOLANTO, MIKKO;REEL/FRAME:023868/0219

Effective date: 20100111

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION

AS Assignment

Owner name: VALMET TECHNOLOGIES, INC., FINLAND

Free format text: CHANGE OF NAME;ASSIGNOR:METSO PAPER, INC.;REEL/FRAME:032551/0426

Effective date: 20131212