US20160010284A1 - Roll - Google Patents

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Publication number
US20160010284A1
US20160010284A1 US14/865,417 US201514865417A US2016010284A1 US 20160010284 A1 US20160010284 A1 US 20160010284A1 US 201514865417 A US201514865417 A US 201514865417A US 2016010284 A1 US2016010284 A1 US 2016010284A1
Authority
US
United States
Prior art keywords
roll
glass fiber
cover
bore
core
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.)
Abandoned
Application number
US14/865,417
Other languages
English (en)
Inventor
Martin Breineder
Hubert Bischof
Matthias Schmitt
Yang Shieh
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Voith Patent GmbH
Original Assignee
Voith Patent GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Voith Patent GmbH filed Critical Voith Patent GmbH
Assigned to VOITH PATENT GMBH reassignment VOITH PATENT GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SCHMITT, MATTHIAS, SHIEH, Yang, BISCHOF, HUBERT, BREINEDER, MARTIN
Publication of US20160010284A1 publication Critical patent/US20160010284A1/en
Abandoned legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/002—Tissue paper; Absorbent paper
    • D21H27/004—Tissue paper; Absorbent paper characterised by specific parameters
    • D21H27/005—Tissue paper; Absorbent paper characterised by specific parameters relating to physical or mechanical properties, e.g. tensile strength, stretch, softness
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/36—Guiding mechanisms
    • D21F1/40—Rolls
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/08—Pressure rolls
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/10—Suction rolls, e.g. couch rolls
    • 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
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
    • D21H13/36—Inorganic fibres or flakes
    • D21H13/38—Inorganic fibres or flakes siliceous
    • D21H13/40—Inorganic fibres or flakes siliceous vitreous, e.g. mineral wool, glass fibres

Definitions

  • the invention relates to a roll for a machine for producing, processing and/or finishing a fibrous web such as a paper, cardboard or tissue web.
  • Rolls are provided in many locations in machines for the production of paper and other web materials. They serve various purposes, for example dewatering, smoothing, rerouting and guiding of the fibrous web. In many locations the rolls are equipped with a sensor system in order to determine operating parameters of the machine and to input automatic control into the process control system.
  • Such sensor systems are generally in the form of sensors that are embedded in a roll cover or in the region of same.
  • the sensors may for example be glass fibers which are inscribed with Bragg grating that are reflective for light coupled into the glass fiber. Processing of the measured data recorded by the sensors occurs in an evaluation device that is connected with the sensors.
  • the evaluation device is arranged on an end cap of the roll and rotates with same. Alternatively it can be located separately from the roll.
  • a system for the determination of the pressure profile in a roll nip is known from EP 0809570 B1, including a first roll which is designed so that it forms a roll nip together with at least one additional roll, whereby the first roll includes several sensors at circumferential and axial locations around the roll in order to capture the pressurization upon the first roll when the first roll is pressed, rotating against the at least one additional roll.
  • the sensors supply pressure signals which are representative of the pressure that is captured by each sensor.
  • a computer is provided with a micro-processor in order to calculate values from the pressure signals of the pressure captured by at least one of the sensors, and a display that is connected with the computer in order to provide a visual illustration of the pressure measurements.
  • the at least one sensor is a fiber optic sensor including one optical fiber that is arranged along the length of the first roll and parallel to the axis of the roll.
  • Rubber or polyurethane roll covers which are suitable for application with such sensors are normally produced oversized so that the roll cover protrudes beyond a roll core and can then be trimmed to the desired measurement. With this approach, a glass fiber that is arranged in the cover or on the boundary interface between the cover and the core would be cut.
  • the invention provides that at least one glass fiber is arranged in a reversibly closable bore in the roll casing and in the recess aligned therewith in the roll cap. This ensures simple, non-destructive—even multiple—assembly and disassembly, which also offers protection from environmental influences such as heat and moisture which could damage the glass fiber.
  • the bore and the recess are dimensioned such that a fiber plug that is arranged terminally on the glass fiber can be inserted into the bore and the recess. In spite of this, the dimensioning is then still small enough as not to affect the stability of the involved roll components.
  • An extension cable can then easily be connected to the fiber plug.
  • a bore hole can preferably be incorporated in the roll cover, wherein at least one of the glass fibers is arranged, leading out of the roll cover, extending in the roll casing and feeding into the bore. In this location the glass fiber is protected and positioned without significant curvature.
  • a sleeve is arranged in the bore in which the fiber plug is fastened, preferably screwed in.
  • the bore and/or the recess can be provided, at least in sections with a thread.
  • the recess can be sealed gas-tight by a screw during a tempering process of the roll.
  • the glass fiber and the fiber plug are thus optimally protected during the heat and water vapor-involving curing process from the effects of said influences.
  • the screw can advantageously be replaced by a banjo bolt through which the at least one glass fiber can be led out of the roll. This renders the assembly and disassembly very simple and damage-proof.
  • the roll cover can consist at least partially of rubber or polyurethane or a combination thereof, or with a fiber composite material.
  • FIG. 1 illustrates a schematized view of the end of a roll according to the invention with one glass fiber and one passage for same, before a tempering process;
  • FIG. 2 illustrates a schematized view as shown in FIG. 1 , in a sectional view of the region of the passage after the tempering process.
  • FIG. 1 is a simplified illustration of a roll 1 for use in a machine for the production, processing and/or finishing of a fibrous web; for example a paper, cardboard or tissue web.
  • Roll 1 includes a roll core 2 which can consist of metal or a composite material and a roll cover 3 arranged thereupon which consists of an elastic material such as rubber or polyurethane.
  • Roll cover 3 is normally attached to roll core 2 by way of an adhesion promoting layer or a base layer.
  • glass fibers 4 can be embedded into roll cover 3 or at a boundary interface between roll core 2 and roll cover 3 .
  • glass fiber 4 When embedding glass fibers 4 into roll cover 3 , glass fiber 4 must be directed laterally through roll core 2 to a roll end face 5 in order to prevent glass fiber 4 being severed and thus destroyed when trimming roll cover 3 .
  • a bore at an approximate angle of 45° is implemented through roll cover 3 and roll core 2 into which then a protective hose is inserted that is cut off flush at its exit point from the cover, which however protrudes up to 2 m at roll end face 5 .
  • Glass fiber 4 is threaded into this hose (starting with the fiber end) and pulled through until a terminal fiber plug reaches the end of the protective hose at roll end face 5 .
  • glass fiber 4 is then for example wound onto roll cover 3 and fastened before an additional cover layer is applied over it.
  • a disadvantage with this system is in particular that a roll cap 6 can no longer be removed after insertion of glass fiber 4 without destroying said glass fiber during the process. This would necessitate a completely new cover on roll 1 if the sensor technology is still to be used. This is particularly problematic for suction rolls and zone-controlled rolls since roll caps 6 must be opened more frequently with these type of rolls.
  • vulcanization of rubber uses water vapor for energy transfer, representing a critical factor that attacks glass fiber 4 and leads to brittleness. This can also destroy glass fiber 4 . Since vulcanization with water vapor is a proven method in the production of rubber covers it, is meaningful not to change the process, but instead to develop a protection system for glass fiber 4 .
  • a bore 7 is introduced in roll core 2 at the transition to roll cap 6 and parallel to roll cover 3 that is large enough to accommodate a fiber plug 8 and to be able to connect same manually to an extension cable 9 .
  • the diameter of bore 7 is approximately 13 to 19 mm.
  • the transfer of glass fiber 4 from roll cover 3 occurs through a bore hole 10 that progresses in a diameter of approximately 5 mm diagonally out of roll cover 3 into roll core 2 and ends in bore 7 while avoiding strong curvature.
  • Glass fiber 4 is protected in borehole 10 either by a retractable protective hose that has the same dimensions as bore hole 10 , or by a sheathing of glass fiber 4 .
  • a sleeve 11 is arranged, preferable screwed in, into which fiber plug 8 is screwed at the exit from bore hole 10 .
  • Glass fiber 4 is inserted into bore hole 10 with some clearance in order to compensate for possible expansions during the tempering process.
  • Extension cable 9 that is designed as a sheathed glass fiber 4 is guided through the banjo bolt and connected to the permanently mounted fiber plug 8 in roll core 2 .
  • extension cable 9 is first threaded through banjo bolt 15 and connected on sleeve 11 in roll core 2 , before banjo bolt 15 is screwed into roll cap 6 .
  • the hole in banjo bolt 15 is closed by a sealing material, such as silicone, however in a way that the fiber still has some clearance.
  • the end of extension cable 9 that is not illustrated in further detail can now be connected to an evaluation device that is also not illustrated in further detail and that is mounted for example on the roll end face 5 on roll cap 6 .
  • Extension cable 9 is attached for this purpose on roll end face 5 , inserted into the evaluation device and is also attached there. Sheathed glass fiber 4 always has some clearance to allow disassembly.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)
  • Rolls And Other Rotary Bodies (AREA)
US14/865,417 2013-03-27 2015-09-25 Roll Abandoned US20160010284A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102013205450.5A DE102013205450B3 (de) 2013-03-27 2013-03-27 Walze
DE102013205450.5 2013-03-27
PCT/EP2014/055791 WO2014154607A1 (de) 2013-03-27 2014-03-24 Walze

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2014/055791 Continuation WO2014154607A1 (de) 2013-03-27 2014-03-24 Walze

Publications (1)

Publication Number Publication Date
US20160010284A1 true US20160010284A1 (en) 2016-01-14

Family

ID=50343787

Family Applications (1)

Application Number Title Priority Date Filing Date
US14/865,417 Abandoned US20160010284A1 (en) 2013-03-27 2015-09-25 Roll

Country Status (4)

Country Link
US (1) US20160010284A1 (de)
DE (1) DE102013205450B3 (de)
FI (1) FI11108U1 (de)
WO (1) WO2014154607A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114207398A (zh) * 2019-07-24 2022-03-18 舍弗罗尔斯有限两合公司 工业辊、特别是用于造纸的工业辊、将聚合物纤维引入工业辊的空管中的方法和聚合物纤维的用途

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5048351A (en) * 1988-12-24 1991-09-17 Schlumberger Industries Limited Mass flow sensor
US5379652A (en) * 1992-09-16 1995-01-10 Valmet Paper Machinery Inc. Method and device for measuring the nip force and/or nip pressure in a nip
US5383371A (en) * 1991-10-14 1995-01-24 Valmet Paper Machinery, Incorporated Method and device for measurement of the nip force and/or nip pressure in a nip formed by a revolving roll or a band that is used in the manufacture of paper
US20050028059A1 (en) * 2003-08-01 2005-02-03 Jean-Francois Cote Processor interface for test access port
US20100324856A1 (en) * 2009-06-22 2010-12-23 Kisang Pak Industrial Roll With Sensors Arranged To Self-Identify Angular Location
US20110226070A1 (en) * 2008-09-23 2011-09-22 Antje Berendes Industrial roll with optical roll cover sensor system
US20130312926A1 (en) * 2012-05-25 2013-11-28 Yang Shieh Roll for a papermaking machine
US20140374460A1 (en) * 2012-01-12 2014-12-25 Voith Patent Gmbh Roll with sensors for a machine for producing and/or processing a material web and machine for producing and/or processing a material web
US20150013927A1 (en) * 2012-02-28 2015-01-15 Voith Patent Gmbh Machine for producing a fiber web

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5562027A (en) * 1995-02-16 1996-10-08 Stowe Woodward Licensco, Inc. Dynamic nip pressure and temperature sensing system
CA2830088A1 (en) * 2011-02-25 2012-08-30 Voith Patent Gmbh Paper machine roller with fiber bragg sensors

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5048351A (en) * 1988-12-24 1991-09-17 Schlumberger Industries Limited Mass flow sensor
US5383371A (en) * 1991-10-14 1995-01-24 Valmet Paper Machinery, Incorporated Method and device for measurement of the nip force and/or nip pressure in a nip formed by a revolving roll or a band that is used in the manufacture of paper
US5379652A (en) * 1992-09-16 1995-01-10 Valmet Paper Machinery Inc. Method and device for measuring the nip force and/or nip pressure in a nip
US20050028059A1 (en) * 2003-08-01 2005-02-03 Jean-Francois Cote Processor interface for test access port
US20110226070A1 (en) * 2008-09-23 2011-09-22 Antje Berendes Industrial roll with optical roll cover sensor system
US20100324856A1 (en) * 2009-06-22 2010-12-23 Kisang Pak Industrial Roll With Sensors Arranged To Self-Identify Angular Location
US20140374460A1 (en) * 2012-01-12 2014-12-25 Voith Patent Gmbh Roll with sensors for a machine for producing and/or processing a material web and machine for producing and/or processing a material web
US20150013927A1 (en) * 2012-02-28 2015-01-15 Voith Patent Gmbh Machine for producing a fiber web
US20130312926A1 (en) * 2012-05-25 2013-11-28 Yang Shieh Roll for a papermaking machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114207398A (zh) * 2019-07-24 2022-03-18 舍弗罗尔斯有限两合公司 工业辊、特别是用于造纸的工业辊、将聚合物纤维引入工业辊的空管中的方法和聚合物纤维的用途
US20220145540A1 (en) * 2019-07-24 2022-05-12 SchäferRolls GmbH & Co. KG Technical roll, in particular for paper manufacturing, method for introducing a polymer fibre into an empty conduit of a technical roll, and use of a polymer fibre
US11913171B2 (en) * 2019-07-24 2024-02-27 SchäferRolls GmbH & Co. KG Technical roll, in particular for paper manufacturing, method for introducing a polymer fibre into an empty conduit of a technical roll, and use of a polymer fibre

Also Published As

Publication number Publication date
DE102013205450B3 (de) 2014-07-10
FI11108U1 (fi) 2016-01-20
WO2014154607A1 (de) 2014-10-02

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AS Assignment

Owner name: VOITH PATENT GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BREINEDER, MARTIN;BISCHOF, HUBERT;SCHMITT, MATTHIAS;AND OTHERS;SIGNING DATES FROM 20151022 TO 20151026;REEL/FRAME:037240/0552

STCB Information on status: application discontinuation

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