DE1573712A1 - Method for measuring the distribution of tensile stresses across the width of strip-shaped material under longitudinal tension and the associated measuring devices - Google Patents

Method for measuring the distribution of tensile stresses across the width of strip-shaped material under longitudinal tension and the associated measuring devices

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Publication number
DE1573712A1
DE1573712A1 DE19661573712 DE1573712A DE1573712A1 DE 1573712 A1 DE1573712 A1 DE 1573712A1 DE 19661573712 DE19661573712 DE 19661573712 DE 1573712 A DE1573712 A DE 1573712A DE 1573712 A1 DE1573712 A1 DE 1573712A1
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Germany
Prior art keywords
deflection
measuring
belt
strip
tension
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.)
Pending
Application number
DE19661573712
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German (de)
Inventor
Dr Wolfgang Muehlberg
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Individual
Original Assignee
Individual
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Publication date
Application filed by Individual filed Critical Individual
Publication of DE1573712A1 publication Critical patent/DE1573712A1/en
Pending legal-status Critical Current

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Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
    • B21B38/02—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring flatness or profile of strips
    • 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
    • G01L5/042—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 by measuring vibrational characteristics of the flexible member
    • 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
    • G01L5/08—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 using fluid means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
    • B21B38/06—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring tension or compression

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Description

Verfahren zum Messen der Verteilung von Zugspannungen über die Breite von unter Läugsaug stehendem bendförmigen Gut und sugehörtge @eßverrichtungen.Method of measuring the distribution of tensile stresses across the width of bend-shaped goods standing under lye and sugehörtge @ eating activities.

In der Patentanmeldung M 67 742 IXb/42k wurde ein Vorfahren beschrieben, das darin besteht, mittels mechanischer Vorrichtungen oder durch flüssige oder Gasförmige Medien, die unter entoperchenden Druck periodisch aus Düsen austreten, auf dem darunter laufenden Band Auslenkungen aus einer fixierten Moßekeme, resp Schwingungen hervorrufen, die ein Maß für die @@@@sugspannung der betreffenden Zous darstellen. Das Band wirkt dabei als Anber über den Pelen einzelner hufeisenförmiger Bauermagmete, die unter dem Band und gegenäber den die auslonkung verurascherden @räften angebracht sind. In den Spulon auf den Sekonkeln der Hufeisonmagnete wird durch die Auslenkung und damit Äm@erung des Abstandes des Bandes von den Magnetpelen eine Induktion@spannung erzeugt, deren Höhs von der Größe der Auslonkung abbängt. Diese @pannungaspitzen können in geeigmeter Weise sichtbar g@m@cht und als @eßgeber für die Einstellung der Walsen eines Walsgorüntes horungezegon worden. Dieses Vorfahren ist aber nur anwerdbar bei magzetischem Walsgut.In the patent application M 67 742 IXb / 42k an ancestor was described, that consists in mechanical devices or by liquid or gaseous Media that periodically emerge from nozzles under de-perching pressure on the one below moving belt deflections from a fixed core, or cause vibrations, which represent a measure of the voltage of the Zous in question. The tape works while anber over the peles of individual horseshoe-shaped peasant magmets, which under the tape and opposite to which the Auslonkung verurascherden @ forces are attached. The deflection and In this way, the distance between the strip and the magnetic tubes is reduced by an induction voltage The height of which depends on the size of the recess. These @tension peaks can be visibly g @ m @ cht in a suitable manner and as @ eßgeber for the setting of the Walsen of a Walsgorüntes horungezegon. But this ancestor is only applicable to magical whale material.

Derüber hinaus besteht allg@mein, aber vorne@@lich für nicht magnetisches @atorial, die Möglichkeit, die angeregten Banischwingungen auf akustischen Wege aufzunch@on und in geeigmotor Weise nichtbar zu m@chen/ @@ wurde nun gefunden, daß man die Auslenkung des Bardes mittels mechanischer Vorricktungen oder durch unter entspreckendem Druck aus 3 @äsen (Rand links, Mitte, Rand roe@ts) austrotende flüssige oder gesförmige Medion dadurch laufend kontrollieren kann, daß non durch @ @üsen, die unterhalb des Baudes und gegenüber den die Auslonkung ersougenden Verrichtungen angeordnet sind, einen gleich mässigen stron einer Flüssigkeit oder eines Gases gegen das Band leitet. @o durch die Abstands@nderungen des auslen@@nden @@@@@@ gegen die outsprockerd a@@g@bildeten Däsen korvergoruf@@@m Druckänderungen im Flässigkeits- oder dasstron kann @@n als Moßworte bonutsen.In addition, there is general @@ lich, but in front for non-magnetic @atorial, the possibility of the stimulated Bani vibrations in acoustic ways to start @ on and in a suitable motorized way not to m @ chen / @@ has now been found that the deflection of the bar by means of mechanical Vorricktungen or by under corresponding pressure from 3 @ äsen (edge left, middle, edge red @ ts) exuding liquid or ge-shaped Medion can be continuously controlled by the fact that non by @ @ üsen, those below the building and across from the activities that were carried out by the excavation are arranged, a uniform stream of a liquid or a gas heads against the tape. @o by changing the spacing of the auslen @@ nden @@@@@@ against the outsprockerd a @@ g @ formed Däsen korvergoruf @@@ m pressure changes in the fluidity or dasstron can bonutsen @@ n as mandatory words.

Bei der @@@ougung der Auslenkung des @@@@@@ durch z.b. @@uckkühl-@@@@@ien oder Druckluft ist es bei dieses @@@@@@@@kung auch räge lich, anstelle der periodisch stoßertigen Belastungen des Bandes einen konstant unter entsprechenen Druck aus Düsen austretenden Flüssigkeite- oder Gasstrom zur Auslenkung des Bandes zu verwenden.When @@@ ougung the deflection of the @@@@@@ by e.g. @@ uckkühl - @@@@@ ien or compressed air is also a problem for this @@@@@@@@ kung lich, instead of the periodically impactful loads on the belt a constant below corresponding Pressure of liquid or gas flow exiting nozzles to deflect the belt to use.

Des weiteren kann man die Bandspannungen vornchmlich am Bandrande als Auslenkung des Bandes 1 aus einer durch Rollen 2 und 2' fixierten Meßebens erfassen,Fig.1. Zur Fixierung dieser Meßebene werden die beiden Rollen 2 und 2' beispielsweise durch einen Zahnriemen 5 und Zahnkrhnse 4 und 4' zwangssynchronisiert. Die Auslenkung f des Bandes 1 infolge einer konstanten Auslonkkraft D wird zweckmässig jeweils nach einer Rollommirchung gemessen, da= mit die Moßfchlor aus den Ercontrizitäten der Rollen kompensiert werden.Furthermore, one can see the belt tension at the edge of the belt as the deflection of the band 1 from a measuring surface fixed by rollers 2 and 2 ', FIG. To fix this measuring plane, the two rollers 2 and 2 'are, for example, through a toothed belt 5 and toothed racks 4 and 4 'forcibly synchronized. The deflection f of the band 1 due to a constant Auslonkkraft D is appropriate in each case measured after a roll-up, there = with the Moßfchlor from the ercontricities of the roles are compensated.

Die kanstants Auslonkkraft D kann von einem mit konstanten Druck aus einer Düse ausströmonden gasförmigen oder flüssigen Modium ü% 3i-..rfl- ji FG Q- - POrO---½Cc. ft'&& .L'E3-O.?!ÜLfÖ &W.,r?f:.OiOj QWC--.O --- --. o - o<w>-c-D'-o-mJ?ft-o-Q«-Ü JJ%iT-¾ß0 dw--- oLrDM--f?.-,. ß»--o-Lm?.t.zb , - 0 Es genügt dabei, daß bei gegebezem Gosamtzug Z = #o.F ( #e ?.?ci.(-jQ?c¼.r.b' %-\)G) o ?.ffi'.---h:'Ifl.tuÖ..ffiM%D } --- -WÄF - ?-D :(.-?W%?.& Fj)f?kL;??ffitC:. ? e-,t.?,o ?%flW¼!?Ei.»C½7f? c--<L i"-1-E4M-C\--- L---c:-' CftOQC) PM»'? CiW½---- ffl£¼r.t?.,r..? ö'1%..££.; \jF ¾o L½ Gm?rc.ts.&b-. Ü-'(q- c''-zi'- re )---.Ö?-,-D M-:;flsr..r)..wrtJ.m...- %,(JCr½Lc Q)MG% Öfyc,-o..-1 ß----C QÄ'Q-{, ).%c.,r(.Q..p;. ;---) C; M--('j%-- ffiGb %--Cd--c%-0 .-..ßß.2%'.'1 Q%.-Q b'c-- e->\3 ,.t ;-rn - ½. Fp------- 1r.-.2-.. .------4--L .Q --,,, -----.- y, -----s-.'.3ü-J.The kanstants Auslonkkraft D can from a constant pressure a nozzle emitting gaseous or liquid Modium ü% 3i - .. rfl- ji FG Q- - POrO --- ½Cc. ft '&& .L'E3-O.?! ÜLfÖ & W., r? f: .OiOj QWC -. O --- -. o - o <w> -c-D'-o-mJ? ft-o-Q «-Ü YY% iT-¾ß0 dw --- oLrDM - f? .- ,. ß »- o-Lm? .t.zb, - 0 It is sufficient that given the overall train Z = # o.F (#e?.? Ci. (- jQ? C¼.r.b ' % - \) G) o? .Ffi '.--- h:' Ifl.tuÖ..ffiM% D} --- -WÄF -? -D: (.-? W%?. & Fj) f? kL; ?? ffitC :. ? e-, t.?, o?% flW¼!? Ei. »C½7f? c - <L i "-1-E4M-C \ --- L --- c: - 'CftOQC) PM»'? CiW½ ---- ffl £ ¼r.t?., r ..? ö'1% .. ££ .; \ jF ¾o L½ Gm? rc.ts. & b-. Ü - '(q- c' '- zi'- re) ---. Ö? -, - D M - :; flsr..r) .. wrtJ.m ...-%, (JCr½Lc Q) MG% Öfyc, -o ..- 1 ß ---- C QÄ'Q- {,).% C ., r (.Q..p ;. ; ---) C; M - ('j% - ffiGb% - Cd - c% -0 .- .. ßß.2%'. '1 Q% .- Q b'c-- e -> \ 3, .t ; -rn - ½. Fp ------- 1r .-. 2- .. .------ 4 - L .Q - ,,, -----.- y, ----- s- . '. 3ü-J.

L-3?r.½7 ?%?f½2$?Ct t:.,}-o ßj%-i ;ß iQM'jO 0. C.Ym M½Q-?'m rJ-.ffi der Ablerkrelle in der Dreirellen-Zugreßein@iektung gebracht werden.L-3? R.½7?%? F½2 $? Ct t:.,} - o ßj% -i; ß iQM'jO 0. C.Ym M½Q -? 'M rJ-.ffi the deflection claw in the three-wheel tension control.

Zwischen der Auslenkung f eines unter @ängssug stch in @@@@@beseich @@ und der in der Raxdzenn verk@@den @@g #El läßt sich nach den Fig. 5, 6 und 7 ein ein @@@@@@@@g ableiten.Between the deflection f one under @ ängssug stch in @@@@@ beseich @@ and the @@ den @@ g #El in the Raxdzenn can be found in Figs. 5, 6 and 7 derive an a @@@@@@@@ g.

-- - & 2). - k'-Wj23'½ Kipr-K2 .-..j-.- £.$-!c U22W47.C-. L @@@dse@ @@ infolge einer konstanten Au@@@@@@h @it D keinen Ein-@@@ auf die anderen Ferdsenen aus@bt. @@@ @@olswei@@ käaute ein aus Kontr@@lgrü@@@@@@ anderen Band,and @@@ vergeschen@ @@@@@@@@ art@@@ @@@verrichtung sur gleichen @eit messen, ohnd daß @@@ @@@ gegenseitig beeirflußen. Infolge Fchlens einer quer gerichteten@ das Band straffenden Bandspannung ##q erfolgt durch die Auslenk kung f infolge der konstanten Auslenkekraft D lediglich eine um mehrere Größenordnungen gegenüber der Auslenkung f kleinere Bewegung des Bandrandes zur Mitte hin. - - & 2). - k'-Wj23'½ Kipr-K2 .- .. j -.- £. $ -! c U22W47.C-. L @@@ dse @ @@ as a result of a constant Au @@@@@@ h @it D no one - @@@ on the other Ferdsenen from @ bt. @@@ @@ olswei @@ chewed one from Kontr @@ lgrü @@@@@@ other band, and @@@ vergeschen @ @@@@@@@@ art @@@ @@@ performance on the same @ time measure, ohnd that @@@ @@@ each other influence. As a result of a transverse @ tightening the ligament Belt tension ## q takes place through the deflection f as a result of the constant deflection force D only one which is several orders of magnitude smaller than the deflection f Movement of the tape edge towards the center.

In den Fig. 5, 6 und 7 ist der Zusammenhang zwischen der Auslenkung f infolge der konstanten Auslenkekraft D und der Bandzugspannung #R1 am Bandrands R1 dargestellt.5, 6 and 7 show the relationship between the deflection f due to the constant deflection force D and the belt tension # R1 at the edge of the belt R1 shown.

Nach den Fig. 5 und 7 läßt sich folgende Proportion aufstellen: 1 D : #R1.d = f : a ; #R1 = D.a 2 2 d.f #R1 = D.a . 1 2 d f Die Auslsnkung f des Bandes, die nach vorstehender Formel ein eindeutiges Maß für die Bandzugspannung in der betreffenden Zone darstellt, kann auf verschiedens Weise erfaßt werden. Das allgeiin ffi' alle 3ELndteriaUen azmendbare ?fahren Ur die tsung der Bandauslenkung f ist ein an sich bekanntes und vielfach an @ewandtes pneumatisches Verfahren. Die Auslenkung f des Bandes wird als Druckänderung eines gasförmigen oder flüssigen Mediums, das aus einer entsprechend ausgebildeten Düse gegen das Band @@@@@@@ gemessen. eine weitere Möglichkeit zur Erfassung der Bandauslenkung f, @@lerdings nur anwendbar bei magnetischem Bandmaterial, besteht dar@n, daß unterhalb der Auslenkvorrichtung ein hufeinenförmiger @lektromagnet angebracht wird, dessen Windungen auf dem einen Schankel infolge einer angelegten Wechselspannung ein Magnetfeld erzeugen, dessen Fluß über das als Anker dienende Band in den Windungen des anderen Schenkels eine Spannung indusiert, die abhängig ist von dem Abstand des Bandes von den beiden Magnetpolen.According to FIGS. 5 and 7, the following proportions can be established: 1 D: # R1.d = f: a; # R1 = D.a 2 2 d.f # R1 = D.a. 1 2 d f The deflection f of the belt, which, according to the formula above, is a clear measure of the tension in the belt represents the zone concerned can be detected in various ways. The general ffi 'all 3 regions can be displaced? Ur the solution of the band deflection f is a known and often used pneumatic process. The deflection f of the tape is called a change in pressure of a gaseous or liquid medium, the measured from a suitably designed nozzle against the tape @@@@@@@. one Another possibility for recording the belt deflection f, @@ but only applicable In the case of magnetic tape material, there is a fact that below the deflection device a hoof-shaped electro-magnet is attached, its turns on one Schankel generate a magnetic field as a result of an applied alternating voltage, whose Flow over the band serving as an anchor in the turns of the other leg one Voltage induced, which is dependent on the distance between the tape and the two magnetic poles.

Claims (1)

Patentansprüche. Claims. 1) Verfahren zum Messen der Verteilung der Bandzugspannung huber die Breite von unter Längszug stehendem bandförmigen Gut, dadurch gekennzeichnet, daß die in den Bandzonen links, Mitte und rechts hervorgerufene Auslenkung des Bandes erfaßt wird. e) Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß bei bekanntem Gesamkzug und damit bekannter mittlerer Bandzugspannung die Bandzugspannung nur in einer äußersten Rendzone oder aus Kontrollgründen in beiden äußersten Randzonen als Auslenkung des Bandes infolge einer konstanten Auslenkkraft erfaßt wird.1) Method of measuring the distribution of belt tension over the Width of strip-shaped material under longitudinal tension, characterized in that the deflection of the band caused in the band zones on the left, middle and right is detected. e) The method according to claim 1, characterized in that when known Total tension and thus known mean belt tension is only the belt tension in an outermost rend zone or, for control reasons, in both outermost edge zones is detected as the deflection of the belt as a result of a constant deflection force. 3) Verfahren nach den Ansprüchen 1 und 2, dadurch gekennzeichnet. daß die Auslenkung als Druckänderung in einem pneumatischen oder hydraulischen Meßsystem erfaßt wird.3) Method according to claims 1 and 2, characterized. that the deflection as a pressure change in a pneumatic or hydraulic measuring system is detected. ) Verfahren nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, daß die Auslenkung des Bandes aus der Meßebene als Änderung der Spannung im Sekundärkreis eines hufeisenförmigen Magneten, dessen Primärwindungen an einer Wechselspannung liegen, angezeigt wird.) Process according to Claims 1 and 2, characterized in that the deflection of the strip from the measuring plane as a change in the voltage in the secondary circuit a horseshoe-shaped magnet, whose primary turns are connected to an alternating voltage is displayed. 5) Verfahren nach den Ansprüchen 1 bis 4, dadurch gekennzeichnet, daß die Meßebene durch Zwengssynchronisation zweier Rollen firiert wird und daß der Meßwert der Bandeuslenkung zur @ompensation von Rundlauffehlern der Rollen jeweils bei der gleichen Rollenstellung abgenommen wird.5) Method according to claims 1 to 4, characterized in that that the measuring plane is fired by forced synchronization of two roles and that the measured value of the belt deflection to compensate for radial run-out errors in each case is removed with the same roll position.
DE19661573712 1965-12-22 1966-09-06 Method for measuring the distribution of tensile stresses across the width of strip-shaped material under longitudinal tension and the associated measuring devices Pending DE1573712A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEM0067742 1965-12-22
DEM0070826 1966-09-06

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DE1573712A1 true DE1573712A1 (en) 1970-05-21

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DE19651573696 Pending DE1573696A1 (en) 1965-12-22 1965-12-22 Method for measuring the distribution of tensile stresses across the width of strip-shaped material and the associated measuring device
DE19661573712 Pending DE1573712A1 (en) 1965-12-22 1966-09-06 Method for measuring the distribution of tensile stresses across the width of strip-shaped material under longitudinal tension and the associated measuring devices

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DE19651573696 Pending DE1573696A1 (en) 1965-12-22 1965-12-22 Method for measuring the distribution of tensile stresses across the width of strip-shaped material and the associated measuring device

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0215743A2 (en) * 1985-09-20 1987-03-25 Randolph Norwood Mitchell Shapemetering apparatus for continuous monitoring and/or correction of the profile and flatness of rolled metal strip and the like
WO1998038482A1 (en) * 1997-02-26 1998-09-03 Siemens Aktiengesellschaft Device for measuring tensile stress distribution in a metal strip

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0215743A2 (en) * 1985-09-20 1987-03-25 Randolph Norwood Mitchell Shapemetering apparatus for continuous monitoring and/or correction of the profile and flatness of rolled metal strip and the like
EP0215743A3 (en) * 1985-09-20 1989-02-22 Randolph Norwood Mitchell Shapemetering process and apparatus for continuous monitoring and/or correction of the profile and flatness of rolled metal strip and the like
WO1998038482A1 (en) * 1997-02-26 1998-09-03 Siemens Aktiengesellschaft Device for measuring tensile stress distribution in a metal strip
US6289750B1 (en) 1997-02-26 2001-09-18 Siemens Aktiengesellschaft Device for measuring tensile stress distribution in a metal strip

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Publication number Publication date
DE1573696A1 (en) 1969-10-02

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