NO127902B - - Google Patents
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- Publication number
- NO127902B NO127902B NO04018/68A NO401868A NO127902B NO 127902 B NO127902 B NO 127902B NO 04018/68 A NO04018/68 A NO 04018/68A NO 401868 A NO401868 A NO 401868A NO 127902 B NO127902 B NO 127902B
- Authority
- NO
- Norway
- Prior art keywords
- roller
- roll
- work
- predetermined value
- gap
- Prior art date
Links
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 2
- 238000005259 measurement Methods 0.000 description 8
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002826 coolant Substances 0.000 description 1
- 238000013000 roll bending Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/58—Roll-force control; Roll-gap control
- B21B37/62—Roll-force control; Roll-gap control by control of a hydraulic adjusting device
-
- 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
- B21B38/10—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring roll-gap, e.g. pass indicators
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Metal Rolling (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Description
Reguleringsanordning for valsestoler. Adjustment device for roller chairs.
Oppfinnelsen vedrører - en reguler ingsanordning for valsestoler, for oppnåelse av _;jevn..bånd tykke Ise på det frembrakte valsegods. The invention relates to - a regulation device for rolling mills, for achieving _;uniform..thick bands of ice on the produced rolled stock.
Ved de kjente reguleringsanordninger av denne art er det anbrakt kpaft.måleanordninger,,. som måler den .tilbake.virkende"-kraft fra valsegodset på valsene, idet måleresultatet benyttes, som reguler ings st ørrelse for. valseinnstillingen. Herunder kan riktignok i beste tilfelle tykkelsesawikelser på det. innkommende valsegods bli utregulert, men ikke urundheter i valsene eller inhomogeni-teter i valsegodsets materiale. Særlig ved hydraulisk forspente valsestoler blir disse forstyrrende påvirkninger til og med for-sterket ved benyttelsen av slike reguleringsanordninger. Videre hører det til teknikkens stilling regulering av valsespalten hvor det ved forskjellige utførelsesformer foregår en direkte måling av,valseavstanden enten ved måling på innbygningsdeler eller ved måling på valsens ytre mantelflate. Men ved slik måling vil for eksempel lagereksentrisiteter, bevegelsesmonnet for innbygningsdelen, termisk utvidelse og slitasje av valseaksel, belegg av avrevet metall; slagg og kjølemedium, samt valseakseeksentrisitet innvirke på måleresultatet og skape feil.i dette. In the known regulating devices of this kind, kpaft.measuring devices are placed,,. which measures the "back-acting" force from the rolling stock on the rolls, as the measurement result is used as a regulation size for the roll setting. Here, it is true that, in the best case, thickness deviations of the incoming rolling stock can be regulated out, but not irregularities in the rolls or inhomogeneity -teter in the material of the rolled goods. Especially in the case of hydraulically pre-stressed roller stands, these disturbing influences are even amplified by the use of such regulating devices. Furthermore, the state of the art includes regulation of the roller gap where, in different embodiments, a direct measurement of the roller distance takes place either by measurement on built-in parts or when measuring on the outer casing surface of the roll. However, with such measurement, for example, bearing eccentricities, the range of motion for the built-in part, thermal expansion and wear of the roll shaft, coating of torn metal, slag and coolant, as well as roll axis eccentricity will affect the measurement result and create errors.i this.
Det er også kjent- anordninger hvor et fall i måleverdien There are also known devices where a drop in the measured value
ikke fremkalles av valsens opplagring eller av valsens ender men derimot av valsetappenes ender. Når det på valsetappenes ender, fer eksempel ifølge US-patentskrift 2.684.001, er påsatt skiver av et metall som absorberer røntgenstråler oppnår man ved valsebøyningen en avvikelse i målestørrelse som i tillegg har en tendens til på ukontrollert måte å gi motsattvirkende utvidelse jav valsespalten. Den nevnte valseakseeksentrisitet, belegg av materialsjikt, varme-utvidelse og slitasje av valsen kan det ikke uten videre kompenser-es for. Videre har endetappene tendens til å bøye seg noe plastisk under drift av valsen og derved øke målefeilene. Ifølge det nevnte kjente utførelseseksempel løper måleretningen i valsens lengderet-ning og er følgelig uegnet for den tilsiktete regulering av båndtykkelsen over båndets lengde. is not caused by the roller's bearing or by the ends of the roller, but instead by the ends of the roller pins. When, for example according to US patent 2,684,001, discs of a metal that absorbs X-rays are attached to the ends of the roll pins, a deviation in measurement size is obtained during the roll bending, which also tends to cause an uncontrolled expansion of the roll gap. The mentioned roll axis eccentricity, coating of material layer, thermal expansion and wear of the roll cannot be easily compensated for. Furthermore, the end pins tend to bend somewhat plastically during operation of the roller and thereby increase measurement errors. According to the aforementioned known design example, the measuring direction runs in the longitudinal direction of the roll and is consequently unsuitable for the intended regulation of the tape thickness over the length of the tape.
Med den foreliggende oppfinnelse tar man-sikte på å unngå With the present invention, one aims to avoid
de nevnte ulemper med de kjente anordninger. the aforementioned disadvantages of the known devices.
Reguleringsanordningen ifølge oppfinnelsen er kjennetegnet ved at en fotoelektrisk eller elektromagnetisk pulsgiver é6gi er plassert ved arbeidsvalsenes ender og som måler avstanden mellom arbeidsvalsene direkte og uten berøring, via en i og for seg kjent innretning for sammenlikning med en forutbestemt verdi og en spalteåpningsangiver er forbundet med en hydraulisk innstillingsanordning som regulerer, -valsespalten til den forutbestemte verdi. Med en slik regulering er det mulig å fremstille valsegods med en jevn båndtykkelse. En slik berøringsløs måling krever en særlig rask regulering og kompensasjon for alle forstyrrende påvirkninger. Pulsgiveren kan være plasert foran eller bak valsespalten eller i innbygningsdelens plan, etter behov. Det kan også velges en slik plasering at pulsgiveren i vesentlig grad kan være beskyttet mot beskadigelse under drift "av valsen. The regulation device according to the invention is characterized by the fact that a photoelectric or electromagnetic pulse generator é6gi is placed at the ends of the work rollers and which measures the distance between the work rollers directly and without contact, via a device known per se for comparison with a predetermined value and a gap opening indicator is connected to a hydraulic setting device which regulates the roll gap to the predetermined value. With such regulation, it is possible to produce rolled stock with a uniform strip thickness. Such non-contact measurement requires particularly fast regulation and compensation for all disturbing influences. The pulse transmitter can be placed in front of or behind the roller gap or in the plan of the built-in part, as required. It is also possible to choose such a location that the pulse transmitter can be protected to a significant extent against damage during operation of the roller.
Ifølge et ."•ytterligere trinn ved den foreliggende oppfinnelse blir det foreslått å utforme måleanordningen slik,' for eksempel ved plassering av flere målepunkter over valsespaltens lengde,- at • "-den også fastslår en avbøyning av arbeidsvalsene og utlikner denne ved hjelp av en valsebøyeånordning. Derved blir det ikke bare opp- . nådd lave toleranser for valsegodset i valseretningen, men også en jevn båndtykkelsé i tverretningen. According to a further step of the present invention, it is proposed to design the measuring device in such a way, for example by placing several measuring points over the length of the roll gap, that it also determines a deflection of the work rolls and compensates for this by means of a roller bending device. Thereby, it is not only up- . reached low tolerances for the rolled stock in the rolling direction, but also a uniform strip thickness in the transverse direction.
I tillegg til den beskrevne måleanordning for avstanden mellom arbeidsvalsene kan det være anordnet en.ytterligere måleanordning for å fastslå båndtykkelsen på det frembrakte valsegods, hvormed reguleringsanordningens funksjron kan overvåkes og eventuelt en etterre^gulering av skalverdi-bestemmelsen blir gjort mulig. In addition to the described measuring device for the distance between the work rolls, an additional measuring device can be arranged to determine the strip thickness of the produced rolled stock, with which the function of the regulating device can be monitored and, if necessary, a subsequent adjustment of the target value determination is made possible.
I tegningen er et utførelseseksempel av oppfinnelsen gjengitt skjematisk i et perspektivriss av en quarto-båndvalsestol. In the drawing, an embodiment of the invention is shown schematically in a perspective view of a quarto band roller chair.
Støttevalser I er lagret i innbygningsdeler 2 for støtte-valsene. Arbeidsvalser 3, som ligger mellom støttevalséne, er lagret i arbeidsvalse-innbygningsdeler 4. Por innstillingen av valsene er det anbrakt en hydraulisk drevet innstillingsanordning 5 på hver valsestolside. En berøringsløst arbeidende måleanordning 6 ved arbeidsvalsenes 3 ender tjener til å fastslå størrelsen på valsespaltene. Et er-signal 7 fra måleanordningen 6 blir tilført en skalverdi-sammenlikningsanordning 8 og sammenliknet med en skalverdi 9. Det slik frembrakte differens-signal 10 blir i en giver 11 for innstillingsstørrelsen omvandlet til en hydraulisk puls 12, hvormed valsespalten blir regulert ved hjelp av innstillingsan-ordningen 5. Support rollers I are stored in built-in parts 2 for the support rollers. Work rollers 3, which lie between the support rollers, are stored in work roller built-in parts 4. For the setting of the rollers, a hydraulically driven setting device 5 is placed on each side of the roller seat. A non-contact measuring device 6 at the ends of the work rolls 3 serves to determine the size of the roll gaps. An actual signal 7 from the measuring device 6 is supplied to a target value comparison device 8 and compared with a target value 9. The difference signal 10 produced in this way is converted into a hydraulic pulse 12 in a sensor 11 for the setting quantity, with which the roller gap is regulated using setting arrangement 5.
Claims (2)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19671602033 DE1602033A1 (en) | 1967-10-21 | 1967-10-21 | Control device for rolling stands |
Publications (1)
Publication Number | Publication Date |
---|---|
NO127902B true NO127902B (en) | 1973-09-03 |
Family
ID=5680996
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO04018/68A NO127902B (en) | 1967-10-21 | 1968-10-10 |
Country Status (12)
Country | Link |
---|---|
US (1) | US3570288A (en) |
AT (1) | AT296197B (en) |
BE (1) | BE722275A (en) |
CH (1) | CH472917A (en) |
DE (1) | DE1602033A1 (en) |
DK (1) | DK122107B (en) |
FR (1) | FR1596628A (en) |
GB (1) | GB1243828A (en) |
LU (1) | LU57124A1 (en) |
NL (1) | NL6814409A (en) |
NO (1) | NO127902B (en) |
SE (1) | SE329985B (en) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3736782A (en) * | 1969-10-22 | 1973-06-05 | Hitachi Ltd | Thrusting devices for rolling mills |
JPS5125429B2 (en) * | 1971-11-16 | 1976-07-30 | ||
DE2224833C3 (en) * | 1972-05-20 | 1981-05-21 | Vereinigte Flugtechnische Werke Gmbh, 2800 Bremen | Device for measuring the gap of a pair of work rolls for a roll stand |
DE2224909A1 (en) * | 1972-05-20 | 1973-11-22 | Ver Flugtechnische Werke | ARRANGEMENT FOR MEASURING THE GAP OF A PAIR OF ROLLS FOR A ROLLING STAND |
JPS5225824B2 (en) * | 1972-10-16 | 1977-07-09 | ||
DE2346543C3 (en) * | 1973-09-15 | 1980-04-03 | Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover | Five-roll calender for the production of thermoplastic films |
GB1507987A (en) * | 1974-07-15 | 1978-04-19 | British Steel Corp | Mill stand roll parameter monitor |
US3974672A (en) * | 1975-09-19 | 1976-08-17 | Herbst John F | Mill hydraulic screw-down |
US4054043A (en) * | 1976-12-02 | 1977-10-18 | Blaw-Knox Foundry & Mill Machinery, Inc. | Closed loop integrated gauge and crown control for rolling mills |
DE2701593C2 (en) * | 1977-01-15 | 1986-07-10 | Wilhelm Hegenscheidt Gmbh, 5140 Erkelenz | Process for sizing rolling of rotating bodies and roll stand for carrying out the process |
DE3109536C3 (en) * | 1981-03-13 | 1994-04-14 | Escher Wyss Ag | Control arrangement for a four-high metal rolling mill |
US4523444A (en) * | 1982-12-13 | 1985-06-18 | Fuchs Jr Francis J | Methods of and apparatus for controlling the gap between a mandrel and die during extrusion |
US4979556A (en) * | 1989-04-04 | 1990-12-25 | Hunter Engineering Company, Inc. | Thickness control for a continuous caster |
CH688180A5 (en) * | 1991-02-01 | 1997-06-13 | Pechiney Rhenalu | Measuring device for roll gap control. |
US5297408A (en) * | 1991-02-19 | 1994-03-29 | Keiichiro Yoshida | Method of an apparatus for controlling hydraulic rolling reduction in a rolling mill |
DE4141260A1 (en) * | 1991-12-14 | 1993-06-17 | Ibn Gmbh Dresden | DEVICE FOR MEASURING THE CENTER DISTANCE OF ROLLS TO EACH OTHER |
DE4226158C2 (en) * | 1992-08-07 | 2003-04-10 | Kloeckner Humboldt Wedag | Process and plant for pressure treatment of granular goods |
DE10054580A1 (en) * | 2000-11-03 | 2002-05-08 | Sms Demag Ag | Roll stand used for rolling steel or high grade steel has working rollers which can be displaced parallel to the rolling direction to adjust the width of the roll gap |
BR0214472B1 (en) | 2001-12-12 | 2010-09-21 | a device for measuring the space between the working rollers of an upstream of hot-rolling rollers or up to a cold-rolling rollers. | |
JP5737617B2 (en) * | 2011-04-01 | 2015-06-17 | 株式会社Ihi | Apparatus and method for continuous compression of electrode strip |
-
1967
- 1967-10-21 DE DE19671602033 patent/DE1602033A1/en active Pending
-
1968
- 1968-10-08 NL NL6814409A patent/NL6814409A/xx unknown
- 1968-10-10 SE SE13701/68A patent/SE329985B/xx unknown
- 1968-10-10 DK DK486768AA patent/DK122107B/en unknown
- 1968-10-10 NO NO04018/68A patent/NO127902B/no unknown
- 1968-10-14 BE BE722275D patent/BE722275A/xx unknown
- 1968-10-16 FR FR1596628D patent/FR1596628A/fr not_active Expired
- 1968-10-16 CH CH1542968A patent/CH472917A/en not_active IP Right Cessation
- 1968-10-16 AT AT1009868A patent/AT296197B/en not_active IP Right Cessation
- 1968-10-18 GB GB49486/68A patent/GB1243828A/en not_active Expired
- 1968-10-18 LU LU57124A patent/LU57124A1/xx unknown
- 1968-10-18 US US776303A patent/US3570288A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
FR1596628A (en) | 1970-06-22 |
SE329985B (en) | 1970-11-02 |
LU57124A1 (en) | 1969-01-27 |
DK122107B (en) | 1972-01-24 |
BE722275A (en) | 1969-03-14 |
CH472917A (en) | 1969-05-31 |
DE1602033A1 (en) | 1970-04-23 |
AT296197B (en) | 1972-02-10 |
NL6814409A (en) | 1969-04-23 |
GB1243828A (en) | 1971-08-25 |
US3570288A (en) | 1971-03-16 |
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