EP4329959A1 - Drahtrichtmaschine und verfahren zum geraderichten von draht oder bandmaterial - Google Patents
Drahtrichtmaschine und verfahren zum geraderichten von draht oder bandmaterialInfo
- Publication number
- EP4329959A1 EP4329959A1 EP22724254.2A EP22724254A EP4329959A1 EP 4329959 A1 EP4329959 A1 EP 4329959A1 EP 22724254 A EP22724254 A EP 22724254A EP 4329959 A1 EP4329959 A1 EP 4329959A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- straightening
- wire
- straightening rollers
- axis
- model
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F1/00—Bending wire other than coiling; Straightening wire
- B21F1/02—Straightening
-
- 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
- B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
- B21D3/02—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers
- B21D3/05—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers arranged on axes rectangular to the path of the work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F1/00—Bending wire other than coiling; Straightening wire
- B21F1/02—Straightening
- B21F1/026—Straightening and cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
-
- 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 wire or strip material by means of a dressing device with straightening rollers which act in an offset manner on opposite sides of the material passing through, some of which are automatically adjusted depending on a model which has been determined on the basis of input data of the material, that the requirements for straightness are met, with the position of at least one straightening roller being continuously adapted on the basis of the data recorded during passage through the dressage device, which are representative of the straightness achieved, with an X-axis within the model in the direction of travel of the material, and a Y and a Z axis perpendicular to each other and to the X axis.
- the invention also relates to a wire straightening machine or a device for straightening wire or strip material with a dressing device with two rows of non-driven straightening rollers arranged longitudinally offset opposite one another, which during operation act on a material passing between the rows in order to straighten it, wherein some straightening rollers are automatically controlled depending on a model and can be adjusted to the material in such a way that the requirements for the straightness of the material emerging from the dressing device are met, with an X-axis in the direction of flow of the material within the model, as well as a Y - and a Z-axis perpendicular to each other and to the X-axis.
- WO 2020/172694 teaches a method and a device in which a wire can be straightened in an adjustable straightening device. For this, either the temperature of the wire, the forces on the straightening rollers or the deflection of the straightened free wire after leaving the straightening device are measured, entered into a model and used to adjust the position of some straightening rollers on the wire.
- the disadvantage is that when measuring the wire deflection, a free wire must be present, which cannot immediately be further processed in an automated manner.
- WO 2015/144539 A1 discloses a method in which, within a test measurement, a relationship is determined, among other things, between forces that act on straightening rollers and "property to be straightened", such as the flatness of the straightened material allows the adjustment of straightening rollers within a straightening process based on the properties of the straightening material, but without measuring forces.
- the disadvantage is that the procedure only takes place as part of a test measurement.
- the object of the invention is to provide a closed loop control for an autonomous method for straightening material of unknown, variable curvature, with the end of the wire not being free, with the straightening machine not being built particularly much longer than conventionally, and with no separate test drive must be carried out.
- this is achieved in that the deflection of the material after it has passed through the arrangement of straightening rollers in the Y and Z directions is measured by means of three sensors arranged along the X axis of the material and the measured values obtained are entered into the A controlling model can be entered at the position of the adjustable straightening rollers.
- dressage devices are run through successively by wire or strip material, with one dressage device having horizontally arranged straightening rollers and the other vertically arranged straightening rollers.
- the material is cut to predetermined lengths downstream of the third sensor, viewed in the throughput direction.
- the position of the material is measured behind all straightening rollers, seen in the throughput direction, by measuring the deviation of the material from the throughput axis (the X-axis) in the direction of the straightening rollers (Y-axis) and perpendicular to these two axes (the Z-axis). ).
- Known optical measuring methods for example, using laser distance sensors (so-called laser scanners) or ultrasonic sensors, can be used for this purpose. It is conceivable that the position measurement is only carried out at the beginning of the process for calibration purposes, while the measurement of the forces acting on the straightening rollers during ongoing operation is sufficient for carrying out the process according to the invention.
- the invention also relates to a device for implementing the method according to the invention.
- the invention consists in such a device in that three sensors spaced apart from one another in the X direction for measuring the deflection of the material in the Z and Y direction in the direction of movement of the material are arranged behind the training device, all of which are obtained Measured values can be supplied to the model that controls the adjustment of the adjustable straightening rollers.
- wire cutters are arranged behind the third sensor, viewed in the throughput direction.
- the wire runs through two dressing devices in succession, one dressing device having horizontally arranged straightening rollers and the other vertically arranged straightening rollers.
- a second dressing device with two rows of non-driven straightening rollers arranged longitudinally offset opposite one another is arranged behind the third sensor second dressage device acts on the material offset by 90° compared to the first.
- FIG. 1 shows a training device with a wire running through it
- FIG. 2 shows the same training device with indicated measuring points
- FIG. 3 shows the graphic model of a wire deflection
- FIG. 1 shows a training device with a wire running through it
- FIG. 2 shows the same training device with indicated measuring points
- FIG. 3 shows the graphic model of a wire deflection
- FIG. 1 shows a training device with a wire running through it
- FIG. 2 shows the same training device with indicated measuring points
- FIG. 3 shows the graphic model of a wire deflection
- the straightening rollers 3, 4, 6, 10 have no rotary drive, the dressage device is traversed by the wire as material 1, the len by Vorschubrol not shown in the direction of arrow 2 is moved.
- the wire runs through two successive dressing devices offset by 90°, one dressing device having horizontal straightening rollers and the other dressing device having vertical straightening rollers.
- the main working range of the invention covers wire diameters between about 4 mm and about 20 mm.
- the first two straightening rollers 3 of the lower Rei in FIG. 1 have fixed axes of rotation.
- the subsequent to this lower straightening roller 4 is individually adjustable by means of an indicated at 5 adjusting device to the continuous Materi al 1.
- the three first straightening rollers 6 of the upper Rei he are jointly adjustable to the material 1 and are mounted for this purpose on a common carrier 7, which is adjustable in height by means of a lever 8 by a servomotor 9.
- the subsequent to the upper straightening rollers 6 upper straightening roller 10 is individually adjustable by means of an indicated at 11 Stellvor direction to the material.
- Fig. 2 shows that after the straightening rollers 3, 4, 6, 10 in the straightening system there are three sensors 13, 14, 15 which measure the position of the straightened wire in the Y-direction and in the Z-direction (not shown, as perpendicular to the paper plane).
- the three sensors 13, 14, 15 spaced apart from one another in the X-direction determine the magnitude and direction of any curvature that is still present.
- Fig. 3 shows the model, wherein the curvature b is based on a predetermined length 1 be. 1 is a section along the X-axis, starting behind the straightening rollers of the dressage devices. It can also be located between two training devices that are offset or rotated by 90° to one another. Ideally, all three sensors 13, 14, 15 are located in section 1.
- the wire has a curvature in the cut state (eg b/1>2 mm/m according to FIG. 3), this can already be seen in the clamped state of the material 1 in front of the shears 16 or other elements of the straightening machine.
- the curvature is not as pronounced in the clamped state as after a cut through the scissors 16.
- connection is non-linear and not directly proportional, because the wire works against a clamped state and can deviate in all directions.
- the prevailing opinion is that the curvature of a wire can only be determined with sufficient accuracy if one end of the wire is free.
- the behavior of the wire with curvature when clamped at both ends can be modeled.
- the curvature of the wire material 1 in the Y and Z directions is determined from the three position measurements.
- the curvature b of FIG. 3 becomes a vector in three-dimensional space. This vector goes into a non-linear model, from which a prediction of the actual curvature, which would have to be compensated for by a new adjustment of the straightening rollers 3, 4, 6, 10, is calculated.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wire Processing (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ATA50312/2021A AT524979B1 (de) | 2021-04-27 | 2021-04-27 | Drahtrichtmaschine und Verfahren zum Geraderichten von Draht oder Bandmaterial |
| PCT/IB2022/053875 WO2022229850A1 (de) | 2021-04-27 | 2022-04-26 | Drahtrichtmaschine und verfahren zum geraderichten von draht oder bandmaterial |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP4329959A1 true EP4329959A1 (de) | 2024-03-06 |
| EP4329959B1 EP4329959B1 (de) | 2025-03-19 |
Family
ID=81748657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22724254.2A Active EP4329959B1 (de) | 2021-04-27 | 2022-04-26 | Drahtrichtmaschine und verfahren zum geraderichten von draht oder bandmaterial |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20240207921A1 (de) |
| EP (1) | EP4329959B1 (de) |
| CN (1) | CN117241901A (de) |
| AT (1) | AT524979B1 (de) |
| BR (1) | BR112023019770A2 (de) |
| IL (1) | IL308038A (de) |
| WO (1) | WO2022229850A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7700658B2 (ja) * | 2021-12-06 | 2025-07-01 | オムロン株式会社 | 線材の矯正機の制御装置、制御システム、および制御方法 |
| CN116571597B (zh) * | 2023-07-11 | 2023-10-31 | 磐吉奥科技股份有限公司 | 拨叉整形设备 |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1239175A (en) | 1916-09-18 | 1917-09-04 | Albert P Gilbert | Wire-straightening machine. |
| DE3729619A1 (de) | 1987-09-04 | 1989-03-16 | Reika Werk Gmbh Maschf | Verfahren und einrichtung zum richten von laengsverschieblichen und um ihre laengsachse sich drehenden rohren |
| DE19503850C1 (de) * | 1995-02-06 | 1996-06-13 | Post Friedhelm Sondermasch | Nichtrotierender Richtapparat für Biegemaschinen mit integrierter Meßvorrichtung |
| US5676010A (en) * | 1996-09-20 | 1997-10-14 | The Whitaker Corporation | Wire straightening device |
| DE19653569C2 (de) * | 1996-12-20 | 1999-07-22 | Witels App Masch Albert Gmbh | Verfahren zur automatisierten Führung eines Richtprozesses |
| DE19750816A1 (de) | 1997-11-17 | 1999-05-20 | Schloemann Siemag Ag | Rollenrichtmaschine zum Richten eines Walzprofils |
| FR2818563B1 (fr) * | 2000-12-27 | 2003-02-07 | Usinor | Procede de regulation en temps reel d'une planeuse |
| DE102014205900A1 (de) | 2014-03-28 | 2015-10-01 | Sms Group Gmbh | Verfahren zum Anstellen einer Richtwalze einer Richtwalzanlage |
| TWI647021B (zh) * | 2017-02-08 | 2019-01-11 | 國立清華大學 | 智慧捲料整平驗證系統及其方法 |
| EP3595824B1 (de) * | 2017-03-13 | 2023-06-07 | SMS Group GmbH | Verfahren zum betreiben einer rollenrichtmaschine |
| EP3930936B1 (de) * | 2019-02-25 | 2023-12-20 | Schnell S.p.A. | Verfahren und vorrichtung zur erkennung der krümmung von länglichen metallelementen |
| AT522234B1 (de) * | 2019-02-28 | 2022-05-15 | Evg Entwicklungs U Verwertungs Ges M B H | Verfahren und Vorrichtung zum Geraderichten von Draht oder Bandmaterial |
| IT201900006816A1 (it) * | 2019-05-14 | 2020-11-14 | Schnell Spa | Metodo e apparecchiatura per rilevare la configurazione di elementi di foggia allungata |
-
2021
- 2021-04-27 AT ATA50312/2021A patent/AT524979B1/de active
-
2022
- 2022-04-26 US US18/557,387 patent/US20240207921A1/en active Pending
- 2022-04-26 BR BR112023019770A patent/BR112023019770A2/pt unknown
- 2022-04-26 CN CN202280031099.4A patent/CN117241901A/zh active Pending
- 2022-04-26 EP EP22724254.2A patent/EP4329959B1/de active Active
- 2022-04-26 IL IL308038A patent/IL308038A/en unknown
- 2022-04-26 WO PCT/IB2022/053875 patent/WO2022229850A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022229850A1 (de) | 2022-11-03 |
| AT524979B1 (de) | 2025-07-15 |
| BR112023019770A2 (pt) | 2023-10-31 |
| US20240207921A1 (en) | 2024-06-27 |
| EP4329959B1 (de) | 2025-03-19 |
| IL308038A (en) | 2023-12-01 |
| AT524979A1 (de) | 2022-11-15 |
| CN117241901A (zh) | 2023-12-15 |
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