EP3838437A1 - Vorrichtung zur verarbeitung von streifenmaterial und verfahren zur verarbeitung von streifenmaterial - Google Patents

Vorrichtung zur verarbeitung von streifenmaterial und verfahren zur verarbeitung von streifenmaterial Download PDF

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Publication number
EP3838437A1
EP3838437A1 EP19383135.1A EP19383135A EP3838437A1 EP 3838437 A1 EP3838437 A1 EP 3838437A1 EP 19383135 A EP19383135 A EP 19383135A EP 3838437 A1 EP3838437 A1 EP 3838437A1
Authority
EP
European Patent Office
Prior art keywords
rollers
strip material
levelling
leveller
processing
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.)
Pending
Application number
EP19383135.1A
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English (en)
French (fr)
Inventor
Iñaki VÁZQUEZ
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sarcoil Processing Lines SL
Original Assignee
Sarcoil Processing Lines SL
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sarcoil Processing Lines SL filed Critical Sarcoil Processing Lines SL
Priority to EP19383135.1A priority Critical patent/EP3838437A1/de
Publication of EP3838437A1 publication Critical patent/EP3838437A1/de
Pending legal-status Critical Current

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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 present invention relates to a system for processing strip material from a coil, wherein the system comprises a leveller which in turn comprises a first set of rollers and a second set of rollers configured to process the strip material, in addition to a single drive motor configured to drive both sets of rollers by applying torque to said first and second sets of rollers.
  • Another object of the present invention is a system for processing strip material and an associated method, wherein the second set of rollers has at least one freewheel (or any other transmission system), that makes it possible to adjust the different angular speeds of each of the rollers of the second set of rollers when they come into contact with the strip material.
  • the device for processing strip material of the present invention comprises first pull rollers positioned at the infeed and outside the leveller, which facilitate the insertion of the strip from the coil into the leveller, and second pull rollers, at the outfeed and outside the leveller, which produce a tension between the first group of rollers of the leveller and the second pull rollers.
  • the devices, systems and processes for levelling strips by means of rollers are used to modify the flatness quality derived from the internal stresses of the material itself. These internal stresses cause the length of the longitudinal fibres of the material to be different, causing pouching to occur along the material.
  • the material in movement may be a strip material (for example, a metal) that is taken from a roll or coil of the strip material and processed using a levelling machine or system by means of rollers, or it may be a pre-cut strip material that is cut into pre-determined lengths or sizes.
  • the strip material is levelled, flattened and otherwise conditioned before cutting and stacking, by means of rollers to remove or substantially reduce undesirable features of the strip material due to defects in the shape and residual internal stresses resulting from the process of manufacturing the coiled material and/or storing the coiled material.
  • Levellers are well known machines that can substantially flatten a strip material (for example, eliminate defects in the shape and release the residual internal stresses) as the strip material is pulled from the coil and passed through these machines.
  • European patent EP2624978B1 is known in the state of the art and discloses a device and method for processing strip material that comprises a first drive unit system to drive a first working roller, in which the first drive unit system includes a first motor; a second drive unit system to drive a second working roller, in which the second drive system includes a second motor; and a controller to provide a first instruction reference to the first drive unit system, wherein the controller measures a first torsion torque output value of the first drive unit system when the first drive unit system operates at the first instruction reference, determines a second torsion torque output value such that the second torsion torque output value is different from the first torsion torque output value and that the second torsion torque output value and the first torsion torque output value define a torsion torque ratio, and drives the second drive unit system at the second torsion torque output value to maintain the torsion torque ratio, wherein the first motor is a master drive unit, and the second motor is a slave drive unit.
  • European patent EP2058059B2 is also known and discloses a leveller and a method for levelling strip material that comprises a first plurality of working rollers to process a strip material, a second plurality of working rollers to process the strip material; and a motor to drive the first plurality of working rollers and the second plurality of working rollers, wherein the motor applies a first torque to the first plurality of working rollers and a second torque to the second plurality of working rollers, wherein the leveller further comprises means for determining the second torque using a measured output value of the first torque, with the second torque being higher than the first.
  • the present invention relates to a device for processing strip or band material, wherein the material preferably comes from a coil, and wherein the device comprises:
  • the device further comprises a first set of traction rollers outside the leveller and positioned at the infeed of the same, driven by means of a second motor.
  • the device further comprises a second set of traction rollers outside the leveller and positioned at the outfeed of the same, driven by means of a third motor.
  • the second set of traction rollers is configured to carry out the threading of the strip material into the leveller.
  • the first set of levelling rollers configured to process the strip material and the second set of levelling rollers configured to process the strip material make up the totality of the rollers of the leveller.
  • the totality of the rollers are driven by the same motor, with none of them rotating freely, except when the material produces different angular speeds produced by the interlocking difference that is generated between the infeed rollers and the outfeed rollers of the leveller.
  • the first set of levelling rollers configured to process the strip material are infeed rollers of the leveller and the second set of levelling rollers configured to process the strip material are outfeed rollers of the leveller.
  • the leveller further comprises at least one coupling/uncoupling device, preferably a freewheel, configured to uncouple the transmission of the torque of the first drive motor to the second set of levelling rollers, which avoids the rapid wear of the rollers of the second set of levelling rollers configured to process the strip material because they are not driven by the first drive motor, but rather rotate freely due to the forward movement of the strip material.
  • at least one coupling/uncoupling device preferably a freewheel
  • the coupling/uncoupling device is also configured to adjust the different angular speeds of each one of the rollers of the second set of levelling rollers, if there is a difference in angular speeds between said rollers of the second set of levelling rollers.
  • the first set of levelling rollers configured to process the strip material are coupled directly to the first drive motor.
  • the first traction or pull rollers positioned outside the leveller at the infeed of the same are also configured to produce additional tension during the processing of the strip material, in the case that the material is oiled and slippage occurs in the first set of levelling rollers with the processed material.
  • This additional tension is due to the fact that the drive generated by the first and only motor of the leveller and configured to drive the first and second sets of levelling rollers produces a slipping of the levelling rollers with the material, producing a loss of tension required at all times for the correct levelling of the material. This is when these first pull rollers assist the first set of levelling rollers to brake the material.
  • the rollers of the first set of levelling rollers configured to process the strip material are in turn configured to operate as a brake when the second pull rollers positioned at the outfeed of the leveller are operating.
  • the invention also relates to a method for processing strip material, which comprises:
  • the method comprises a threading step carried out by means of a first set of traction rollers outside the leveller and positioned at the infeed of the same, driven by means of a second motor.
  • the method comprises a pulling step carried out by means of a second set of traction rollers outside the leveller and positioned at the outfeed of the same, driven by means of a third motor.
  • the step of processing a strip material is carried out solely by means of the first set of levelling rollers configured to process the strip material and the second set of levelling rollers configured to process the strip material through the leveller.
  • the different angular speeds of each one of the rollers of the second set of levelling rollers are adjusted to each other, if there is a difference in angular speeds between said rollers of the second set of levelling rollers.
  • the method for processing strip material comprises a threading step of the strip material into the leveller by means of at least one pair of pull rollers positioned outside and before the leveller.
  • the pulling step carried out by means of a second set of traction rollers outside the leveller and positioned at the outfeed of the same is also optionally carried out by the first set of levelling rollers configured to process the strip material acting as a brake.
  • Figure 3 illustrates a leveller (100) that comprises a first set of levelling rollers (1, 2, 3, 9, 10, 11) configured to process the strip material (200) and a second set of levelling rollers (4, 5, 6, 7, 8, 12, 13, 14, 15, 16, 17) configured to process the strip material (200); with both sets making up the totality of rollers of the leveller (100), and in addition, a first and only drive motor (20) configured to drive the first set of levelling rollers (1, 2, 3, 9, 10, 11) configured to process the strip material (200) by directly applying a torque to the first set of levelling rollers (1, 2, 3, 9, 10, 11) and to the second set of levelling rollers (4, 5, 6, 7, 8, 12, 13, 14, 15 ,16, 17) by means of a coupling/uncoupling system, preferably one or more freewheels (21, 22).
  • a coupling/uncoupling system preferably one or more freewheels (21, 22).
  • Both the first set of levelling rollers (1, 2, 3, 9, 10, 11) configured to process the strip material (200) as well as the second set of levelling rollers (4, 5, 6, 7, 8, 12, 13, 14, 15 ,16, 17) configured to process the strip material (200) comprise a plurality of upper rollers (1, 2, 3, 4, 5, 6, 7, 8) and a plurality of lower rollers (9, 10, 11, 12, 13, 14, 15, 16, 17), wherein the upper rollers (1, 2, 3, 4, 5, 6, 7, 8) are offset with respect to the lower rollers (9, 10, 11, 12, 13, 14, 15, 16, 17) in one forward direction of the strip material (200) through the leveller (100), such that the strip material (200) is fed between the upper rollers (1, 2, 3, 4, 5, 6, 7, 8) and the lower rollers (9, 10, 11, 12, 13, 14, 15, 16, 17) alternately.
  • the coupling/uncoupling system of the leveller (100) comprises two or more freewheels (21, 22) (or another uncoupling system) configured to uncouple the transmission of the torque of the first and only drive motor (20) to the second set of levelling rollers (4, 5, 6, 7, 8, 12, 13, 14, 15 ,16, 17), such that they rotate freely due to the forward movement of the strip material (200).
  • the first set of levelling rollers (1, 2, 3, 9, 10, 11) configured to process the strip material (200) are coupled directly to the first and only drive motor (20), as shown in Figure 3 .
  • the device for processing strip material further comprises a first pair of pull rollers (29) positioned outside and before the leveller (100) and configured to carry out the threading of the strip material (200) into the leveller (100).
  • the device for processing strip material further comprises at least one second pair of pull rollers (30, 31) at the outfeed and outside the leveller (100) and configured to produce the tension on the strip material (200) and improve the levelling.
  • the rollers of the first set of levelling rollers (1, 2, 3, 9, 10, 11) configured to process the strip material (200) are in turn configured to operate as a brake when the at least one second pair of pull rollers (30, 31) are operating.
  • the single drive motor (20) is connected to two input shafts (23, 24) that connect the single drive motor (20) to a second roller (3) of the plurality of upper rollers (1, 2, 3, 4, 5, 6, 7, 8) and to a second roller (10) of the plurality of lower rollers (9, 10, 11, 12, 13, 14, 15, 16, 17), with both second rollers (3, 10) belonging to the first set of levelling rollers (1, 2, 3, 9, 10, 11) configured to process the strip material (200), preferably infeed rollers of the leveller (100).
  • the method for processing strip material (200) comprises:
  • the second set of levelling rollers (4, 5, 6, 7, 8, 12, 13, 14, 15 ,16, 17) In the step of uncoupling the second set of levelling rollers (4, 5, 6, 7, 8, 12, 13, 14, 15 ,16, 17) so that they rotate freely if the strip material pulls them at a different rotational speed than the first set of levelling rollers (1, 2, 3, 9, 10, 11), preferably by means of a coupling/uncoupling system of the leveller, more preferably by means of two or more freewheels (21, 22), the different angular speeds of each one of the rollers of the second set of levelling rollers (4, 5, 6, 7, 8, 12, 13, 14, 15 ,16, 17) are adjusted to each other, if there is a difference in angular speeds between said rollers of the second set of levelling rollers (4, 5, 6, 7, 8, 12, 13, 14, 15 ,16, 17).
  • the threading step is carried out before the processing step of a strip material (200).
  • the method further comprises a sub-step of braking the rollers of the first set of rollers configured to process the strip material, preferably by driving the first and only drive motor (20) in a direction opposite the forward direction of the strip material (200) through the leveller (100).

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)
EP19383135.1A 2019-12-18 2019-12-18 Vorrichtung zur verarbeitung von streifenmaterial und verfahren zur verarbeitung von streifenmaterial Pending EP3838437A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19383135.1A EP3838437A1 (de) 2019-12-18 2019-12-18 Vorrichtung zur verarbeitung von streifenmaterial und verfahren zur verarbeitung von streifenmaterial

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19383135.1A EP3838437A1 (de) 2019-12-18 2019-12-18 Vorrichtung zur verarbeitung von streifenmaterial und verfahren zur verarbeitung von streifenmaterial

Publications (1)

Publication Number Publication Date
EP3838437A1 true EP3838437A1 (de) 2021-06-23

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EP19383135.1A Pending EP3838437A1 (de) 2019-12-18 2019-12-18 Vorrichtung zur verarbeitung von streifenmaterial und verfahren zur verarbeitung von streifenmaterial

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113751535A (zh) * 2021-07-30 2021-12-07 泰安华鲁锻压机床有限公司 一种四驱合流矫直机驱动装置

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60223615A (ja) * 1984-04-20 1985-11-08 Sumitomo Metal Ind Ltd ロ−ラレベリング方法
DE3913713A1 (de) * 1989-04-26 1990-10-31 Schleifenbaum & Steinmetz Gmbh Verfahren und vorrichtung zur behandlung von blechen und metallbaendern
SE517210C2 (sv) * 1996-09-17 2002-05-07 Toshio Nagata Kraftöverföringsanordning och anordning för torsionsavkänning hos kraftöverföringsaxel
EP1584384A1 (de) * 2004-04-07 2005-10-12 Sundwig GmbH Richtmaschine mit Wechselkassette
JP2008006491A (ja) * 2006-06-30 2008-01-17 Jfe Steel Kk レベリングロールのスリップ疵防止方法およびレベラー
EP2624978B1 (de) 2010-10-06 2015-04-01 The Bradbury Company, Inc. Vorrichtung und verfahren zur erhöhung der effizienz von walzenformungs- und nivelliersystemen
US20180093310A1 (en) * 2016-10-05 2018-04-05 Allor Manufacturing Inc. Device and method for leveling a metal plate
EP2058059B2 (de) 2007-11-07 2020-01-15 The Bradbury Company, Inc. Verfahren und Vorrichtung zum Antreiben von Materialbearbeitungsmaschinen

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60223615A (ja) * 1984-04-20 1985-11-08 Sumitomo Metal Ind Ltd ロ−ラレベリング方法
DE3913713A1 (de) * 1989-04-26 1990-10-31 Schleifenbaum & Steinmetz Gmbh Verfahren und vorrichtung zur behandlung von blechen und metallbaendern
SE517210C2 (sv) * 1996-09-17 2002-05-07 Toshio Nagata Kraftöverföringsanordning och anordning för torsionsavkänning hos kraftöverföringsaxel
EP1584384A1 (de) * 2004-04-07 2005-10-12 Sundwig GmbH Richtmaschine mit Wechselkassette
JP2008006491A (ja) * 2006-06-30 2008-01-17 Jfe Steel Kk レベリングロールのスリップ疵防止方法およびレベラー
EP2058059B2 (de) 2007-11-07 2020-01-15 The Bradbury Company, Inc. Verfahren und Vorrichtung zum Antreiben von Materialbearbeitungsmaschinen
EP2624978B1 (de) 2010-10-06 2015-04-01 The Bradbury Company, Inc. Vorrichtung und verfahren zur erhöhung der effizienz von walzenformungs- und nivelliersystemen
US20180093310A1 (en) * 2016-10-05 2018-04-05 Allor Manufacturing Inc. Device and method for leveling a metal plate

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113751535A (zh) * 2021-07-30 2021-12-07 泰安华鲁锻压机床有限公司 一种四驱合流矫直机驱动装置

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