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
  • B21F1/023—Straightening in a device rotating about the wire axis
• • 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
  • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, 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 dressage device with ver on opposite sides of the material passing through sets attacking straightening rollers, some of which are dependent on a model, which based on input data of the material and its passage through the dressage device determined data of the material and the dressage device has been determined stochastically, are automatically set so that the requirements for straightness are met, the position of at least one straightening roller is continuously adapted on the basis of the data recorded when passing through the dressage device, which for the straightness achieved are representative.
• the invention has the task of specifying a closed loop Re for an autonomous method to straighten straightening material of unknown, variable curvature.
• the process should ensure the desired straightness of the straightened wire with greater reliability. In the method mentioned at the outset, this is achieved in that
• the temperature of the material is measured at the exit of each straightening roller or every straightening block.
• the measurement (i) of the forces acting on the straightening rollers is expediently carried out by means of strain gauges arranged on the bearing bolts of the straightening rollers, which measure the bending moments in the axial, vertical and / or horizontal direction.
• the measurement (ii) of the temperature records the deformation energy introduced into the object to be straightened. This measurement can be used to correct material properties that flow into the model, if necessary. It is possible that this measurement is only carried out at the beginning of a straightening process or for calibrating a straightening device.
• the measurement (iii) of the position of the material is expediently carried out after each of the straightening rollers by measuring the deviation of the material from the axis of passage in the pitch direction of the straightening rollers.
• Known optical or non-contact (eg magnetic) measuring methods come into consideration for this. This also applies to the appropriate measurement of the vibrations occurring on the wire material passing through, whose measured value is also entered into the model that controls the adjustment of the adjustable straightening rollers. It is conceivable that the position measurement (iii) is only carried out at the beginning of the method for calibration purposes, while the measurement of the forces acting on the straightening rollers is sufficient to carry out the method according to the invention during operation.
• two dressage devices as mentioned above are passed through one behind the other by the material, one dressage device having horizontally arranged straightening rollers and the other vertically arranged straightening rollers.
• the invention also relates to a device for carrying out the method according to the invention with a Dressurvor device with two mutually offset longitudinally arranged rows of non-powered straightening rollers that act on a wire passing through between the rows in order to straighten it, with some straightening rollers depending on one Model can be adjusted automatically to the material in such a way that the requirements for the straightness of the material emerging from the dressage device are met, the model being determined stochastically on the basis of input data entered for the wire and data from the dressage device and the material recorded in the dressage device is.
• a device is mentioned in the DE-A cited above.
• the invention consists in the fact that the straightening rollers of one row that first act on the material have fixed axes and the straightening roller that then acts on the same side of the material can be individually adjusted to the material passing through, and that the straightening rollers of the opposite row all of that Material can be hired, the first acting on the material straightening rollers of this series together and the straightening roller acting on the material at the same row individually adjustable or is, and the size and direction of the forces acting on the straightening rollers with means of this self-arranged measuring devices, such as strain gauges, as well as the temperature of the material can be measured by means of measuring devices arranged at the entrance and exit of the dressage device, with all measured values obtained being fed to the model controlling the adjustment of the adjustable straightening rollers.
• the temperature of the material can be measured following one or more straightening rollers by means of measuring devices arranged there in each case, whereby all measured values obtained can also be fed to the model controlling the adjustment of the adjustable straightening rollers.
• the position of the material following one or more straightening rollers can be measured by means of measuring devices arranged there, with all measured values obtained also being able to be fed to the model controlling the adjustment of the adjustable straightening rollers.
• Fig. 1 shows a training device with a wire running through it
• Fig. 2 shows the same training device with indicated measuring points of the forces occurring on the individual straightening rollers and the wire temperature
• Fig. 3 shows a straightening roller with a strain gauge arranged on it shows.
• the dressage device of FIGS. 1 and 2 has two rows of horizontal rows that are horizontally offset from one another Straightening rollers 3, 4, 6, 10. One row engages the wire to be straightened at the bottom and the other row engages the wire to be straightened at the top.
• the material 1 to be straightened can also be strip material (not shown); In the following, the term material denotes the wire or strip material.
• the straightening rollers 3, 4, 6, 10 have no rotary drive, the training device is traversed by the wire as material 1, which is moved in the direction of the arrow 2 by feed rollers (not shown). Normally, the wire passes through two dressage devices, each offset by 90 °, one behind the other, one training device having horizontal straightening rollers and the other training device having vertical straightening rollers.
• the main working area of the invention comprises wire diameters between approximately 4 mm and approximately 20 mm.
• the first two straightening rollers 3 of the lower row in FIGS. 1 and 2 have fixed axes of rotation.
• the at this closing lower straightening roller 4 is individually adjustable by means of an adjusting device indicated at 5 to the material 1 going through de.
• the three first straightening rollers 6 of the upper row can be adjusted together against the material 1 and for this purpose are mounted on a common carrier 7 which can be adjusted in height by means of a lever 8 by a servomotor 9.
• the upper straightening roller 10 adjoining the upper straightening rollers 6 can be individually adjusted to the material by means of an adjusting device indicated at 11.
• the material 1 heats up during straightening by a Richtrol lengarnitur.
• the temperature measuring devices are at the Points 16 indicated. The temperature can also be measured at the exit of each of the straightening rollers 3, 4, 6, 10.
• the measuring devices arranged following each of the straightening rollers 3, 4, 6, 10 for determining the position of the wire are not shown in FIG. These are known optical or magnetic measuring devices which measure the deviation of the material 1 from the axis of passage in or parallel to the setting direction of the straightening rollers 6, 4, 10, i.e. in the case shown, measure in the vertical direction.
• a vibration measuring device is also not shown, which measures the vibrations that occur on the wire when the corrugated wires are straightened in order to eliminate the disturbance variables resulting therefrom.
• strain gauges 17 are in the bearing pin 12 Straightening roller provided.
• the strain gauges 17 are arranged parallel to one another in the bearing pin 12. They are also around the axis of the bearing pin 12 around in quadrant intervals (offset by 90 °).
• other pressure or bending measuring sensors can be used in or on the bearing pin 12, e.g. Piezo sensors with a simple structure.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Wire Processing (AREA)
• Straightening Metal Sheet-Like Bodies (AREA)

Priority Applications (9)

Applications Claiming Priority (2)

Publications (2)

Family

ID=72050633

Family Applications (1)

Country Status (12)

Cited By (1)

Families Citing this family (2)

Citations (1)

Family Cites Families (15)

• 2019
  • 2019-02-28 AT ATA77/2019A patent/AT522234B1/de active
• 2020
  • 2020-01-28 EP EP20754611.0A patent/EP3930940B1/de active Active
  • 2020-01-28 CN CN202080011741.3A patent/CN113382812B/zh active Active
  • 2020-01-28 JP JP2021549711A patent/JP2022521767A/ja active Pending
  • 2020-01-28 CA CA3125331A patent/CA3125331A1/en active Pending
  • 2020-01-28 WO PCT/AT2020/000001 patent/WO2020172694A2/de unknown
  • 2020-01-28 US US17/310,885 patent/US20220143677A1/en active Pending
  • 2020-01-28 KR KR1020217030385A patent/KR20210132683A/ko unknown
  • 2020-01-28 BR BR112021013352-6A patent/BR112021013352A2/pt unknown
  • 2020-02-13 TW TW109104502A patent/TWI732455B/zh active
• 2021
  • 2021-06-30 ZA ZA2021/04559A patent/ZA202104559B/en unknown
  • 2021-08-17 IL IL285670A patent/IL285670A/en unknown

Patent Citations (1)

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