EP0035009A1 - Dispositif pour soutenir le cylindre de travail d'une machine à cintrer ou dresser les tôles - Google Patents

Dispositif pour soutenir le cylindre de travail d'une machine à cintrer ou dresser les tôles Download PDF

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Publication number
EP0035009A1
EP0035009A1 EP81890015A EP81890015A EP0035009A1 EP 0035009 A1 EP0035009 A1 EP 0035009A1 EP 81890015 A EP81890015 A EP 81890015A EP 81890015 A EP81890015 A EP 81890015A EP 0035009 A1 EP0035009 A1 EP 0035009A1
Authority
EP
European Patent Office
Prior art keywords
support
support rollers
ruler
work roll
engagement
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
Application number
EP81890015A
Other languages
German (de)
English (en)
Other versions
EP0035009B1 (fr
Inventor
Thomas Dipl.Ing. Neff
Friedrich Dipl.Ing. Thiele
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.)
Voestalpine AG
Original Assignee
Voestalpine AG
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Filing date
Publication date
Application filed by Voestalpine AG filed Critical Voestalpine AG
Publication of EP0035009A1 publication Critical patent/EP0035009A1/fr
Application granted granted Critical
Publication of EP0035009B1 publication Critical patent/EP0035009B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/14—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories having counter-pressure devices acting on rolls to inhibit deflection of same under load; Back-up rolls
    • 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
    • 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
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/14—Bending sheet metal along straight lines, e.g. to form simple curves by passing between rollers

Definitions

  • the invention relates to a device for supporting a work roll of a sheet metal bending or straightening machine with support rollers distributed over the length of the work roll, which are supported on actuators on a support.
  • a disadvantage of such an adjustment of the support roller position is that it is derived from the judging result, which on the one hand includes an assessment of the judging result and the measurement problems associated with it and on the other hand changes in conditions can only be taken into account after the fact.
  • the invention is therefore based on the object to avoid these deficiencies and to improve a device for supporting a work roll of a sheet metal bending or straightening machine of the type described in such a way that the desired course of the work roll can be ensured even under changing load conditions.
  • each actuating drive is assigned a reference point which determines the desired position of the support rollers when the support beam is unloaded and is fixed in space with respect to the position of the work roll, and a measuring device for the deviation of the actual position from the desired position given by the reference point and that the actuators can be controlled via a control device as a function of the measured actual value difference.
  • the adjustment of the support rollers is not adjusted to the travel of the actuators, but to a fixed reference point, the load-related deflections of the work roll can be compensated for regardless of the deflection of the support bracket for the support rollers.
  • the deviations from the target position of the work roll can be determined with the aid of the measuring devices provided, which determine the actual position of the support rollers, with respect to a fixed reference system, which allows simple adjustment of the actuators in order to maintain the target position.
  • This room Fixed reference system is given by the reference points against which the position of the support rollers is measured. If the work roll cannot be adjusted, these reference points for setting the actuators are actually fixed in space. If there is an option for the work roll, the reference points must of course be stationary with regard to the position of the work roll, because it is important to maintain the desired position of the support rollers. With an adjustment of the work roll, the reference points must also be adjusted by the same amount.
  • the position of the work roll is regulated by the employment of the support rollers with respect to a fixed reference system, any deformation of the work roll is immediately detected and compensated for by a corresponding adjustment of the support rollers, so that the sheet to be straightened or the one to be bent Sheet metal sections are processed under constant working conditions. It is not necessary to check the judging result or the roll-in result to correct the machine setting.
  • the reference points are formed by a ruler running parallel to the work roll, this results in particularly simple construction conditions because the reference points are defined together. It is only necessary to ensure that the forces that occur cannot act on the ruler in order to be able to actually ensure fixed reference points. For this reason, the ruler should be supported without torque. With such a moment-free support, the ruler can also be mounted on the support bracket for the support rollers, because the support forum cannot affect the ruler.
  • the storage of the ruler on the support has the advantage that the spatial assignment of the ruler to the work roll is retained even when the work roll is adjusted, since the support for the support rollers is also adjusted. In the case of non-adjustable work rolls, however, it is cheaper if the ruler is on its own storage outside the carrier trestle is stored. With the provision of separate pedestals, any change in the position of the ruler due to load can be excluded.
  • the design of the measuring device provided for this being immaterial, particularly simple ratios can be achieved in that the measuring device each consists of a sensor assigned to the support rollers and a sensor provided on the ruler.
  • Inductive or capacitive sensors which allow contactless measurement, can serve as sensors.
  • the arrangement of the sensors on the ruler has the advantage that the sensors do not have to be moved with the support rollers.
  • the lower work rolls 1 of a sheet straightening machine are supported against undesired bending by support rollers 2 distributed over the length of the work rolls 1.
  • the also required Ab Support of the upper work rolls 3 is carried out in the usual way via further support rollers, but this is not shown for reasons of clarity.
  • the support rollers 2 for the lower work rolls 1 can be adjusted with the aid of actuators 4 which are mounted on a carrier 5.
  • the carrier 5 is held in the side uprights 6 of the machine frame.
  • the forces acting on the work rolls 1 are therefore partly carried away via the support rollers 2 and the actuators 4 on the carrier 5, so that this carrier 5 is subjected to a bending stress. If the support 5 bends, the support rollers 2 are taken along in accordance with the local deflection, so that the course of the work rolls 1 originally set via the support rollers 2 can no longer be guaranteed.
  • a ruler 7 is provided parallel to the work rolls, the fixed reference point and thus independent of the deflection of the support 5 for measuring the respective position of the individual support rolls 2 forms.
  • the measuring device 8 for determining the actual position of the support rollers 2 consists in each case of an inductive or capacitive transducer 9 which interacts with a corresponding sensor 10.
  • the sensors 9 are arranged on the ruler 7, while the sensors 10 belong to the support rollers 2.
  • the actuators 4 as a hydraulic cylinder shown in FIG. 1, there is a particular design simplification if the sensors 10 are connected directly to the piston 11.
  • each actuator 4 can be adjusted accordingly via the measured difference between the actual value and the target value.
  • control devices 14 are provided which are connected to the transducers 9 and which actuate the actuators 4 as a function of the setpoint / actual value difference which has been determined. In Fi g . 4, this control is indicated by a corresponding control valve 15, which controls the pressure applied to the respective hydraulic cylinder.
  • the control of the actuators can of course vary depending on the type of construction.
  • the support rollers 2 for the work rolls 1 of a straightening machine are mounted in rows in a common frame 16, so that. each row of support rollers can be adjusted for itself via the frame 16, which results in the same position of the support rollers 2 on all work rolls 1 and thus a design simplification, although of course each work roll is supported differently over its length over the support rolls distributed over the length of the work roll can be.
  • the actuating drives 4 acting on the frame 16 are designed in the exemplary embodiment according to FIG. 2 as wedge drives which are acted upon by hydraulic cylinders 17 acting in opposite directions. Instead of one hydraulic cylinder 17 each, only one common hydraulic cylinder can be provided for the wedge drives assigned to a frame 16, but this only permits parallel adjustment of the frame 16.
  • the actuation of the actuators 4 via the hydraulic cylinders 17 takes place in turn via corresponding control devices 14 which are connected to corresponding sensors 9 for determining the actual position of the support rollers 2, as indicated in FIG. 4.
  • the work rolls are supported differently by correspondingly arranged support rollers 2 as a function of the load occurring, as is shown in FIG. 3 using a three-roll bending machine.
  • the support rollers 2, which are mounted in groups in a common frame 16 similarly to the straightening machine according to FIG. 2, are adjusted in the same way via the actuating drives 4 if there would be a deflection of the work rolls 1 due to changing load conditions.
  • the changes in the work roll deflection determined via the measuring devices 8 lead to a correction of the support roll adjustment via a set actual value comparison, so that the shape of the work rolls is independent of the occurring load conditions can be kept constant.
  • the higher load forces occurring when the sheets 18 are bent do not therefore result in a greater deflection of the work rolls.
  • the straight course of the generatrix of the rolled sheets 18 is therefore retained over the entire bending range.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
EP81890015A 1980-02-21 1981-01-27 Dispositif pour soutenir le cylindre de travail d'une machine à cintrer ou dresser les tôles Expired EP0035009B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT953/80 1980-02-21
AT0095380A AT365485B (de) 1980-02-21 1980-02-21 Vorrichtung zum abstuetzen einer arbeitswalze einer blechbiege- oder -richtmaschine

Publications (2)

Publication Number Publication Date
EP0035009A1 true EP0035009A1 (fr) 1981-09-02
EP0035009B1 EP0035009B1 (fr) 1983-07-06

Family

ID=3503618

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81890015A Expired EP0035009B1 (fr) 1980-02-21 1981-01-27 Dispositif pour soutenir le cylindre de travail d'une machine à cintrer ou dresser les tôles

Country Status (3)

Country Link
EP (1) EP0035009B1 (fr)
AT (1) AT365485B (fr)
DE (1) DE3160541D1 (fr)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3437777A1 (de) * 1984-10-16 1986-04-24 Fr. W. Schnutz GmbH & Co, 5900 Siegen Stuetzwalzenverstellung fuer richtmaschinen
EP0274722A3 (en) * 1987-01-10 1989-12-20 Sms Schloemann-Siemag Aktiengesellschaft Straightening machine for plate and strips
EP0570770A1 (fr) * 1992-05-21 1993-11-24 Sms Schloemann-Siemag Aktiengesellschaft Procédé et machine de dressage pour dresser des tôles et bandes
EP0556408A4 (fr) * 1991-09-10 1995-05-24 Nippon Steel Corp
EP0767014A1 (fr) * 1995-10-06 1997-04-09 Kvaerner Clecim Planeuse à cylindres parallèles
FR2816856A1 (fr) * 2000-11-17 2002-05-24 Usinor Dispositif et procede de calibrage d'une planeuse multi-rouleaux
US7530250B2 (en) 2004-08-28 2009-05-12 Sms Demag Ag Method for straightening a metal strip and straightening machine
CN102357581A (zh) * 2011-09-23 2012-02-22 中冶南方工程技术有限公司 带材拉伸弯曲矫直机
WO2013135688A1 (fr) * 2012-03-15 2013-09-19 Sms Siemag Ag Dispositif servant à redresser une bande métallique
CN106216436A (zh) * 2016-08-29 2016-12-14 苏州康鸿智能装备股份有限公司 一种智能测量整形机构
DE102017124027A1 (de) 2017-10-16 2019-04-18 Schuler Automation Gmbh & Co. Kg Verfahren, Vorrichtung und Computerprogrammprodukt zum Einstellen der Biegung zumindest einer Richtwalze einer Walzenrichtmaschine
WO2019187995A1 (fr) * 2018-03-28 2019-10-03 新東工業株式会社 Dispositif de presse à rouleaux
US11292047B2 (en) * 2019-05-03 2022-04-05 Ford Global Technologies Mechanical die pressure monitoring system
DE102021101054A1 (de) 2021-01-19 2022-07-21 Kohler Maschinenbau Gmbh Richtmaschine zum Richten von Metallbändern oder flächigen Metallteilen sowie Verfahren zum Betreiben einer solchen

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3337957A1 (de) * 1983-10-19 1985-05-02 SMS Schloemann-Siemag AG, 4000 Düsseldorf Blechrichtmaschine
FR2851943B1 (fr) * 2003-03-07 2005-04-08 Dispositif et procede de calibrage d'une planeuse a rouleaux par barre instrumentee

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2555677A1 (de) * 1975-12-08 1977-06-23 Escher Wyss Ag Verfahren zur einstellung der anpresskraft eines walzwerkes sowie vorrichtung zur ausfuehrung des verfahrens

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1602146A1 (de) * 1967-06-10 1970-05-06 Siemens Ag In einem Bandwalzwerk quer zur Laufrichtung des Bandes angeordnete hohle Walze
DE1934496A1 (de) * 1969-07-08 1971-01-21 Schloemann Ag Walzenrichtmaschine fuer Blech und Band
CH589806A5 (fr) * 1975-03-04 1977-07-15 Escher Wyss Ag
FI52394C (fi) * 1975-12-31 1977-08-10 Valmet Oy Taipumakompensoitu, päistään kuormitettu tela, etenkin paperikoneen pu ristintela.
CH626273A5 (fr) * 1978-04-18 1981-11-13 Escher Wyss Ag
DE2824217A1 (de) * 1978-06-02 1979-12-06 Schloemann Siemag Ag Richtmaschine fuer bleche und baender

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2555677A1 (de) * 1975-12-08 1977-06-23 Escher Wyss Ag Verfahren zur einstellung der anpresskraft eines walzwerkes sowie vorrichtung zur ausfuehrung des verfahrens

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3437777A1 (de) * 1984-10-16 1986-04-24 Fr. W. Schnutz GmbH & Co, 5900 Siegen Stuetzwalzenverstellung fuer richtmaschinen
EP0182062A3 (en) * 1984-10-16 1987-09-30 Schnutz Fr W Gmbh & Co Backing-up roll adjustment for straightening machines
EP0274722A3 (en) * 1987-01-10 1989-12-20 Sms Schloemann-Siemag Aktiengesellschaft Straightening machine for plate and strips
EP0556408A4 (fr) * 1991-09-10 1995-05-24 Nippon Steel Corp
US5609054A (en) * 1991-09-10 1997-03-11 Nippon Steel Corporation Rolling mill for flat products
EP0570770A1 (fr) * 1992-05-21 1993-11-24 Sms Schloemann-Siemag Aktiengesellschaft Procédé et machine de dressage pour dresser des tôles et bandes
EP0767014A1 (fr) * 1995-10-06 1997-04-09 Kvaerner Clecim Planeuse à cylindres parallèles
FR2739578A1 (fr) * 1995-10-06 1997-04-11 Clecim Sa Planeuse a cylindres paralleles
US5758534A (en) * 1995-10-06 1998-06-02 Kvaerner Clecim Leveling machine with a parallel cylinders
FR2816856A1 (fr) * 2000-11-17 2002-05-24 Usinor Dispositif et procede de calibrage d'une planeuse multi-rouleaux
WO2002040191A3 (fr) * 2000-11-17 2003-01-16 Usinor Sa Dispositif et procede de calibrage d'une planeuse multi-rouleaux
KR100780462B1 (ko) * 2000-11-17 2007-11-28 아르셀러 프랑스 다중 롤 교정기를 조정하기 위한 장치 및 방법
US7530250B2 (en) 2004-08-28 2009-05-12 Sms Demag Ag Method for straightening a metal strip and straightening machine
CN102357581A (zh) * 2011-09-23 2012-02-22 中冶南方工程技术有限公司 带材拉伸弯曲矫直机
WO2013135688A1 (fr) * 2012-03-15 2013-09-19 Sms Siemag Ag Dispositif servant à redresser une bande métallique
JP2015509852A (ja) * 2012-03-15 2015-04-02 エス・エム・エス・ジーマーク・アクチエンゲゼルシャフト ストリップを矯正するための装置
CN106216436A (zh) * 2016-08-29 2016-12-14 苏州康鸿智能装备股份有限公司 一种智能测量整形机构
DE102017124027A1 (de) 2017-10-16 2019-04-18 Schuler Automation Gmbh & Co. Kg Verfahren, Vorrichtung und Computerprogrammprodukt zum Einstellen der Biegung zumindest einer Richtwalze einer Walzenrichtmaschine
WO2019076886A1 (fr) * 2017-10-16 2019-04-25 Schuler Pressen Gmbh Procédé, dispositif et produit programme d'ordinateur pour régler la courbure d'au moins un galet de dressage d'une machine de dressage à galets
CN111328299A (zh) * 2017-10-16 2020-06-23 舒勒压力机有限责任公司 用于设置辊式矫直机的至少一个矫直辊的弯曲的方法、装置和计算机程序产品
US11596989B2 (en) 2017-10-16 2023-03-07 Schuler Pressen Gmbh Method and computer program product for setting the bending of at least one straightening roller of a roller straightening machine
WO2019187995A1 (fr) * 2018-03-28 2019-10-03 新東工業株式会社 Dispositif de presse à rouleaux
JPWO2019187995A1 (ja) * 2018-03-28 2021-04-08 新東工業株式会社 ロールプレス装置
US11292047B2 (en) * 2019-05-03 2022-04-05 Ford Global Technologies Mechanical die pressure monitoring system
DE102021101054A1 (de) 2021-01-19 2022-07-21 Kohler Maschinenbau Gmbh Richtmaschine zum Richten von Metallbändern oder flächigen Metallteilen sowie Verfahren zum Betreiben einer solchen

Also Published As

Publication number Publication date
EP0035009B1 (fr) 1983-07-06
ATA95380A (de) 1981-06-15
DE3160541D1 (en) 1983-08-11
AT365485B (de) 1982-01-25

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