EP1074318A2 - Verfahren zur Regelung des Draht-Zuges zwischen Fertigblock und Nachblock in Drahtwalzstrassen - Google Patents
Verfahren zur Regelung des Draht-Zuges zwischen Fertigblock und Nachblock in Drahtwalzstrassen Download PDFInfo
- Publication number
- EP1074318A2 EP1074318A2 EP00114720A EP00114720A EP1074318A2 EP 1074318 A2 EP1074318 A2 EP 1074318A2 EP 00114720 A EP00114720 A EP 00114720A EP 00114720 A EP00114720 A EP 00114720A EP 1074318 A2 EP1074318 A2 EP 1074318A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- block
- wire
- values
- speeds
- finishing
- 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.)
- Withdrawn
Links
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
- B21B37/48—Tension control; Compression control
- B21B37/52—Tension control; Compression control by drive motor control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/16—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section
- B21B1/18—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section in a continuous process
Definitions
- the invention relates to a method for regulating the wire tension between the finished block and postblocking of wire rolling mills, in which the speeds of the drives of the finished block and that of the postblock depending on measurements of the Thickness of the wire passing through the blocks can be variably regulated.
- Modern high-performance wire mills consist of a rough road, one or more intermediate lines and a finishing block for the Rolling stock.
- the mill stands in Vorstrasse and Eisenstrasse are proportionate heavily built and designed for high rolling pressures.
- the subsequent finishing block consists of several, usually 6 to 10 alternately Rolling units offset by approx. 90 ° from each other in the rolling line close together in a block, and their rolling units driven directly and together by a drive via a transfer case become.
- This prefabricated block is usually followed by a water cooling section with a temperature compensation section for the wire. Depending on its dimensions and quality, the cooling zones can be controlled so that even at high rolling speeds a predetermined temperature profile is reached in the wire.
- a known rolling process of the type mentioned with a rolling mill training described (EP 0 219 316 B1) provides in front of and behind the finished block means for measuring the strength of the entering the finished block and the thickness of the wire emerging from this finished block before and in addition, as drives for the finished block and the post-block, each speed-controllable Engines. There is also a wire between the finished block and the post block only touching, but not deforming, from its own speed-controllable Motor driven drive roller pair provided.
- the two devices for measuring the wire thickness in front of and behind the finished block transmit their measured values to a computer, which also includes speed values the drive motors of the finishing block and the post block and the Speed value of the drive motor of the drive roller pair are supplied.
- the computer determines the wire thickness by comparing the measurement results and behind the finished block, the elongation caused in this by the rolling process of the wire strand.
- the computer determines from the values of the acute speeds of the drive motors of the finishing block, the post block, and of the pair of driving rollers is the volume of the wire strand emerging from the finished block per unit of time and the ratio of the speeds of the drives of Ready block and post block and gives one out of these and the speed value of the Driving roller pair calculated control value for the speed of the drive of the secondary block to generate the intended train on the wire strand.
- the computer constantly compares the above-mentioned actual values with the calculated ones Values or empirical values and sets the determined values in speed control values for the drives of finished block and post block. In addition, at small wire thicknesses the speeds of the emerging from the finished block Wire too high to be within the technically limited distance between finished block and postblock enough time for a regulation to To make available.
- the invention has for its object this method, which is significant and often trouble-prone expenditure on measuring devices and computer capacity requires to improve so that the effort is reduced and the susceptibility to failure be minimized.
- This object is achieved in that the regulation of the speed of the drives of the finished block and depending on this the regulation of the speed of the drive of the post-block is effected with manipulated values based on measurements of the strength of the wire before it enters the finished block and computer processing the corresponding measured values in comparison with pre-calculated theoretical values or based on experience.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Metal Rolling (AREA)
- Metal Extraction Processes (AREA)
- Wire Processing (AREA)
Abstract
Description
Claims (1)
- Verfahren zur Regelung des Drahtzuges zwischen Fertigblock und Nachblock von Drahtwalzstraßen, bei dem die Drehzahlen der Antriebe des Fertigblocks und des Nachblocks in Abhängigkeit von Messungen der Stärke des die Blöcke durchlaufenden Drahts verändert geregelt werden,
dadurch gekennzeichnet,
daß die Regelung der Drehzahlen des Antriebs des Fertigblocks und abhängig von dieser die Regelung der Drehzahlen des Antriebs des Nachblocks mit Stellwerten bewirkt wird, die auf Messungen des Drahts vor dessen Eintritt in den Fertigblock und Rechner-Bearbeitung der entsprechenden Meßwerte im Vergleich mit vorerrechneten, theoretischen Werten oder Erfahrungs-Werten beruhen.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1999136140 DE19936140A1 (de) | 1999-07-31 | 1999-07-31 | Verfahren zur Regelung des Draht-Zuges zwischen Fertigblock und Nachblock in Drahtwalzstraßen |
| DE19936140 | 1999-07-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1074318A2 true EP1074318A2 (de) | 2001-02-07 |
| EP1074318A3 EP1074318A3 (de) | 2003-09-17 |
Family
ID=7916781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00114720A Withdrawn EP1074318A3 (de) | 1999-07-31 | 2000-07-08 | Verfahren zur Regelung des Draht-Zuges zwischen Fertigblock und Nachblock in Drahtwalzstrassen |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1074318A3 (de) |
| BR (1) | BR0003203A (de) |
| DE (1) | DE19936140A1 (de) |
| MX (1) | MXPA00007444A (de) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1452062A1 (de) * | 1965-01-15 | 1969-10-30 | Schloemann Ag | Verfahren zum Regeln der Querschnittsabmessungen beim kontinuierlichen Walzen von Draht oder Feinstahl |
| US4665730A (en) * | 1985-10-09 | 1987-05-19 | Morgan Construction Company | Method of controlling product tension in a rolling mill |
| DE4117054A1 (de) * | 1991-05-22 | 1992-11-26 | Mannesmann Ag | Sizing-geruest gruppe |
| IT1297570B1 (it) * | 1997-12-04 | 1999-12-17 | Automation Spa Centro | Procedimento di controllo del tiro del laminato |
-
1999
- 1999-07-31 DE DE1999136140 patent/DE19936140A1/de not_active Withdrawn
-
2000
- 2000-07-08 EP EP00114720A patent/EP1074318A3/de not_active Withdrawn
- 2000-07-28 BR BR0003203-4A patent/BR0003203A/pt not_active Application Discontinuation
- 2000-07-28 MX MXPA00007444 patent/MXPA00007444A/es unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BR0003203A (pt) | 2001-03-13 |
| EP1074318A3 (de) | 2003-09-17 |
| MXPA00007444A (es) | 2002-07-22 |
| DE19936140A1 (de) | 2001-02-01 |
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| AKX | Designation fees paid |
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| GRAP | Despatch of communication of intention to grant a patent |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| 18D | Application deemed to be withdrawn |
Effective date: 20041215 |