FI113024B - System för att definiera en tryckprofil i ett pressnyp - Google Patents

System för att definiera en tryckprofil i ett pressnyp Download PDF

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Publication number
FI113024B
FI113024B FI973344A FI973344A FI113024B FI 113024 B FI113024 B FI 113024B FI 973344 A FI973344 A FI 973344A FI 973344 A FI973344 A FI 973344A FI 113024 B FI113024 B FI 113024B
Authority
FI
Finland
Prior art keywords
roll
pressure
sensors
nip
computer
Prior art date
Application number
FI973344A
Other languages
English (en)
Finnish (fi)
Other versions
FI973344A (sv
FI973344A0 (sv
Inventor
Robert H Moore
Original Assignee
Stowe Woodward Llc
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 Stowe Woodward Llc filed Critical Stowe Woodward Llc
Publication of FI973344A publication Critical patent/FI973344A/sv
Publication of FI973344A0 publication Critical patent/FI973344A0/sv
Application granted granted Critical
Publication of FI113024B publication Critical patent/FI113024B/sv

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/06—Means for regulating the pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/005—Control arrangements
    • B30B11/006—Control arrangements for roller presses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/26—Programme control arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B3/00—Presses characterised by the use of rotary pressing members, e.g. rollers, rings, discs
    • B30B3/005—Roll constructions
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • D21G1/002—Opening or closing mechanisms; Regulating the pressure
    • D21G1/004—Regulating the pressure
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
    • G01K11/02—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using evaporation or sublimation, e.g. by observing boiling
    • G01K11/04—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using evaporation or sublimation, e.g. by observing boiling from material contained in a hollow body having parts which are deformable or displaceable under the pressure developed by the vapour
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/0061—Force sensors associated with industrial machines or actuators
    • G01L5/0076—Force sensors associated with manufacturing machines
    • G01L5/0085—Force sensors adapted for insertion between cooperating machine elements, e.g. for measuring the nip force between rollers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/04—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
    • G01L5/045—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands for measuring the tension across the width of a band-shaped flexible member

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
  • Measuring Fluid Pressure (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Fixing For Electrophotography (AREA)

Claims (4)

1. System (1) för att definiera en tryckprofil i ett pressnyp, vilket omfattar: 5 en första vals (6) som är utformad att bilda ett pressnyp med ätminstone en andra vals (2) , vilken första vals ärkännetecknad av att ett flertal sensorer (4) är placerade utspridda pä periferin och parallellt med axeln runt nämnda vals för 10 att detektera ett tryck riktat mot den första valsen (6), när den första valsen roterande pressas mot nämnda ätminstone ena andra (2) vals, varvid sensorerna (4) genererar trycksignaler, som motsvarar trycket som respektive sensor (4) har detekterat; 15 en dator (18) som omf attar en mikroprocessor (26) för att beräkna trycket frän nämnda trycksignaler, som er-hälls frän ätminstone en av nämnda sensorer (4); och en bildskärm (20) som är kopplad tili datorn (18) för visuell presentation av nämnda tryckmätningar.
2. System enligt patentkrav 1 för att definiera en tryckprofil, kännetecknat av att sensorn är fiberop-: tisk, och att nämnda ätminstone ena fiberoptiska sensor ''· omfattar en optisk fiber monterad längs den första valsen och parallellt med valsens (6) axel.
3. System enligt patentkrav 2 för att definiera en • t tryckprofil, kännetecknat av att nämnda ätminstone ena fiberoptiska sensor omfattar en optisk fiber lindad runt nämnda vals.
4. System enligt patentkrav 2 för att definiera en 30 tryckprofil, kännetecknat av att nämnda första vals j (6) är en sugvals (29) . -it » > I
FI973344A 1995-02-16 1997-08-14 System för att definiera en tryckprofil i ett pressnyp FI113024B (sv)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US08/390,408 US5562027A (en) 1995-02-16 1995-02-16 Dynamic nip pressure and temperature sensing system
US39040895 1995-02-16
PCT/US1996/002656 WO1996025288A1 (en) 1995-02-16 1996-02-16 Dynamic nip pressure sensing system
US9602656 1996-02-16

Publications (3)

Publication Number Publication Date
FI973344A FI973344A (sv) 1997-08-14
FI973344A0 FI973344A0 (sv) 1997-08-14
FI113024B true FI113024B (sv) 2004-02-27

Family

ID=23542364

Family Applications (1)

Application Number Title Priority Date Filing Date
FI973344A FI113024B (sv) 1995-02-16 1997-08-14 System för att definiera en tryckprofil i ett pressnyp

Country Status (10)

Country Link
US (1) US5562027A (sv)
EP (1) EP0809570B1 (sv)
JP (1) JP3230817B2 (sv)
AT (1) ATE238164T1 (sv)
AU (1) AU695189B2 (sv)
BR (1) BR9607401A (sv)
CA (1) CA2211260C (sv)
DE (1) DE69627639T2 (sv)
FI (1) FI113024B (sv)
WO (1) WO1996025288A1 (sv)

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Also Published As

Publication number Publication date
AU695189B2 (en) 1998-08-06
JP3230817B2 (ja) 2001-11-19
FI973344A (sv) 1997-08-14
EP0809570B1 (en) 2003-04-23
WO1996025288A1 (en) 1996-08-22
BR9607401A (pt) 1998-06-30
MX9706274A (es) 1998-08-30
ATE238164T1 (de) 2003-05-15
AU5175396A (en) 1996-09-04
CA2211260A1 (en) 1996-08-22
CA2211260C (en) 2003-12-23
DE69627639T2 (de) 2004-05-27
DE69627639D1 (de) 2003-05-28
JPH11500530A (ja) 1999-01-12
EP0809570A4 (en) 1999-03-24
EP0809570A1 (en) 1997-12-03
US5562027A (en) 1996-10-08
FI973344A0 (sv) 1997-08-14

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