EP0937521A2 - Procédé et installation de planage de bandes métalliques - Google Patents
Procédé et installation de planage de bandes métalliques Download PDFInfo
- Publication number
- EP0937521A2 EP0937521A2 EP98124099A EP98124099A EP0937521A2 EP 0937521 A2 EP0937521 A2 EP 0937521A2 EP 98124099 A EP98124099 A EP 98124099A EP 98124099 A EP98124099 A EP 98124099A EP 0937521 A2 EP0937521 A2 EP 0937521A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- straightening
- rollers
- roller mill
- roller
- strip
- 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- Withdrawn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
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
- B21D1/02—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling by rollers
Definitions
- the invention relates to a method for straightening Metal strips and a straightening machine for this in the preamble of claim 1 or claim 7 defined genus.
- the drive for the straightening rollers is an oil bath-operated transfer case with cardan shafts, and three-phase or direct-current motors serve as the drive motor.
- the inventive method and the inventive designed straightening machines have the advantage Metal strips with variable strip thickness with an acceptable to be able to direct technical effort and thereby to achieve sufficient flatness of the belt.
- Such Metal strips with variable strip thickness or Material thickness course over continuously defined Metal strip sections are e.g. for the production of so-called Flat beam wipers needed for vehicles like them are known from US 3 192 551.
- the straightening rolls load-bearing roller mill which is controlled by CNC the course of the strip thickness takes place with little tax expenditure optimal plasticization of the individual, different thick band areas and thus a reduction of the internal stresses achieved so that a largely flatness of the metal strip is guaranteed, even after cutting the Metal strip is maintained in defined strip sections.
- the CNC-controlled can be moved parallel to the straightening roller axes.
- the wedge pairs are preferably displaced by means of hydraulic working cylinder operated by servo valves become.
- the servo valves are operated by electric servomotors actuated, which in turn by a control unit after a controlled program considering the strip thickness become.
- the front view of the straightening machine for straightening metal strips which can be seen in FIG. 1 in a front view with a view of the so-called strip inlet side, has as its core a lower roller mill 11 and an upper roller mill 12, each of which supports and supports a large number of straightening rollers 13 and 14, respectively are.
- a straightening roller 13 of the lower roller mill 11 and a straightening roller 14 of the upper roller mill 12 lie opposite one another at an adjustable distance and with an offset and form a pair of rollers.
- the individual straightening rollers 13, 14 are from a drive motor 15 designed as a three-phase or direct current motor is driven via a transfer case 16.
- the lower roller mill 11 is arranged in a stationary manner on a machine bed 17, while the upper roller mill 12 is designed to be vertically displaceable on a machine stand 18 fastened to the machine bed 17.
- the upper roller mill 12 can be moved vertically on the machine stand 18 by means of handwheels or servomotors (not shown here) and the distance between the straightening rollers 13, 14 can thus be changed.
- the Straightening rollers 13, 14 are set so that the metal strip 10 a bend in succession between each pair of rollers changing bending directions with from the belt inlet to the Belt runout experiences decreasing degree of bending.
- the running direction of the metal strip 10, usually from a supply roll withdrawn and fed to the straightening machine is shown in FIG. 2 marked with 19.
- To support the straightening rollers 13, 14 serve support rollers 20, as shown schematically in Fig. 2 are shown, the support directly or - as here - Is carried out via spiral grooved intermediate rollers 21.
- the spiral groove of the intermediate rollers 21 also brings an additional cleaning effect.
- Fig. 5 is a section of a metal strip 10 with variable Strip thickness curve shown in side view, whose Material thickness d is in one piece successive belt sections 101 over the Section length changes, the material thickness d in the Center of band section 101 is largest and to the ends of the band section 101 decreases. Beginning and end of individual band sections 101 are through so-called trigger holes 22 marked in metal tape 10.
- the embodiment varies the material thickness d within of each band cut 101 between a maximum value of 1.2mm and a minimum value of 0.4mm.
- This upper roller mill 12 becomes one pendulum movement dependent on the strip thickness d Belt running direction 19 driven at which the distance between the straightening rollers 13, 14 of the individual roller pairs from Belt inlet 23 to the belt outlet 24 of the roller mills 11, 12 increases or vice versa from the tape outlet 24 to the tape inlet 23 decreases.
- roller mill 12 driven by a drive device 25, which in turn from a control unit 26 according to a program is controlled by the variable strip thickness profile of the metal band 10 dependent pendulum movement of the upper Rolling mill 12 specifies.
- Substantial part of the Drive device 25 are two wedge pairs 27, one of which each a pair of wedges 27 on the tape inlet side 23 and the tape exit side 24 of the upper roller mill 12 is arranged is.
- Each wedge pair 27 consists of the two wedges 271, 272, over which the upper roller mill 12 on the Machine stand 18 supports.
- the two wedges are 271.272 rigidly connected to each other and towards their bevel 27a displaceable parallel to the axes of the straightening rollers 14 educated.
- Fig. 1 only the wedge pair 27 on the Belt inlet side 23 of the upper roller mill 12 can be seen.
- the Wedge pair 27, not shown, on the tape outlet side 24 of the upper roller mill 12 is identical and arranged.
- the displacement movement of each wedge pair 27 is from a fluid operated, e.g. hydraulic, working cylinder 28 causes, which is controlled by a servo valve 29.
- the Servor valve 29 is driven by an electric stepper motor 30 actuated, which in turn is controlled by a control unit 31 becomes.
- Fig. 3 is controlled by the tape section length l Displacement path s of each wedge pair 27 is shown, namely in Fig. 3a for the wedge pair 27 on the tape inlet side 23 of the upper roller mill 12 and in Fig. 3b for the wedge pair 27 the tape exit side 24 of the upper roller mill 12. How the shifting movements of the two wedge pairs 27 with different control functions causes. These control functions are based on one initially empirically refined sinusoidal curve.
- a blown air device is combined with the sensor 31, the two blower nozzles 32, 33 shown schematically in FIG. 1 of which generate a compressed air jet directed towards the center of the band for cleaning the trigger holes 22.
- Every chair segment 121 - 123 is a similar drive device 25 assigned, with each drive device 25 in FIG the pair of wedges 27 on the strip inlet side 23 of the respective Chair segments 121 - 123 and the wedge pair 27 'on the Belt exit side 24 of each chair segment 121-123 is represented symbolically.
- Each of the three here Drive devices 25 is as described above is built up and controlled by the control unit so that each chair segment 121 - 123 an individual pendulum movement runs in the tape running direction 19.
- the drive motor 15 has an incremental angle encoder 34, which signals to the Control unit 26 delivers.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Straightening Metal Sheet-Like Bodies (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19806668 | 1998-02-18 | ||
| DE19806668A DE19806668A1 (de) | 1998-02-18 | 1998-02-18 | Verfahren zum Richten von Metallbändern und Richtmaschine hierzu |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0937521A2 true EP0937521A2 (fr) | 1999-08-25 |
| EP0937521A3 EP0937521A3 (fr) | 2001-01-31 |
Family
ID=7858099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98124099A Withdrawn EP0937521A3 (fr) | 1998-02-18 | 1998-12-18 | Procédé et installation de planage de bandes métalliques |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0937521A3 (fr) |
| DE (1) | DE19806668A1 (fr) |
| ZA (1) | ZA991242B (fr) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102020117682A1 (de) | 2020-07-03 | 2022-01-05 | Kohler Maschinenbau Gmbh | Richtmaschine und Verfahren zum Richten eines Metallbandes oder eines flächigen Metallteils |
| CN115255033A (zh) * | 2022-08-03 | 2022-11-01 | 南京弘煊科技有限公司 | 一种伺服驱动板材矫平装置及矫平控制方法 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105772505B (zh) * | 2014-12-23 | 2017-12-26 | 宝山钢铁股份有限公司 | 冷轧变厚度板轧制方法 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2424876A1 (de) * | 1974-05-22 | 1975-11-27 | Physitronik Geraetebau Gmbh | Verfahren und vorrichtung zur steuerung des vorschubes einer werkzeugmaschine |
| JPS62187521A (ja) * | 1986-02-13 | 1987-08-15 | Ishikawajima Harima Heavy Ind Co Ltd | ロ−ラ矯正機の圧下制御方法 |
| JPS62214825A (ja) * | 1986-03-17 | 1987-09-21 | Mitsubishi Heavy Ind Ltd | ロ−ラレベラ |
| US5255548A (en) * | 1992-03-02 | 1993-10-26 | Mesta International | Method for roller levelling of heavy plate |
-
1998
- 1998-02-18 DE DE19806668A patent/DE19806668A1/de not_active Withdrawn
- 1998-12-18 EP EP98124099A patent/EP0937521A3/fr not_active Withdrawn
-
1999
- 1999-02-17 ZA ZA9901242A patent/ZA991242B/xx unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102020117682A1 (de) | 2020-07-03 | 2022-01-05 | Kohler Maschinenbau Gmbh | Richtmaschine und Verfahren zum Richten eines Metallbandes oder eines flächigen Metallteils |
| CN115255033A (zh) * | 2022-08-03 | 2022-11-01 | 南京弘煊科技有限公司 | 一种伺服驱动板材矫平装置及矫平控制方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0937521A3 (fr) | 2001-01-31 |
| ZA991242B (en) | 2000-08-17 |
| DE19806668A1 (de) | 1999-08-19 |
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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 |
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