EP0060965A2 - Appareil de dressage de tôles - Google Patents

Appareil de dressage de tôles Download PDF

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Publication number
EP0060965A2
EP0060965A2 EP81890180A EP81890180A EP0060965A2 EP 0060965 A2 EP0060965 A2 EP 0060965A2 EP 81890180 A EP81890180 A EP 81890180A EP 81890180 A EP81890180 A EP 81890180A EP 0060965 A2 EP0060965 A2 EP 0060965A2
Authority
EP
European Patent Office
Prior art keywords
frame
rollers
straightening
cylinder
adjustable
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
EP81890180A
Other languages
German (de)
English (en)
Other versions
EP0060965A3 (en
EP0060965B1 (fr
Inventor
Karl Palmannshofer
Werner Pölzl
Leopold Zamecnik
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
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 Voestalpine AG filed Critical Voestalpine AG
Publication of EP0060965A2 publication Critical patent/EP0060965A2/fr
Publication of EP0060965A3 publication Critical patent/EP0060965A3/de
Application granted granted Critical
Publication of EP0060965B1 publication Critical patent/EP0060965B1/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
    • 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 device for straightening sheet metal strips with two opposing sets of freely rotatable straightening rollers mounted in a frame and with a pair of drive rollers arranged downstream of the straightening rollers.
  • a disadvantage of such a driver stand is the distance between the straightening rolls and the driver rolls of the driver stand, which determines the length of the non-straightenable start of the belt.
  • the invention is therefore based on the object to avoid these deficiencies and to improve a device for straightening sheet metal strips of the type described in such a way that the non-straightenable strip start is kept to a minimum in the case of freely rotatable straightening rollers and a separate driver frame is unnecessary.
  • the frame consists of a lower part and an upper part which can be placed on the lower part and braced relative thereto by means of a tensioning device, that both frame parts each carry one of the two drive rollers of the pair of drive rollers in addition to a straightening roller set, and that at least one drive roller is adjustably mounted perpendicular to its axis and transversely to the direction of belt travel and is supported on the associated frame part by means of at least one spring or one cylinder.
  • the drive roller pair can be connected directly to the straightening roller sets due to the position of the drive rollers via the adjustable upper part of the frame, so that the distance between the straightening rollers and the driving rollers actually increases due to the lack of a separate adjusting device for the driving rollers a minimum can remain limited. Since the bending forces which occur, which are considerable when straightening thick sheet metal strips, in such a straightening device, however, via the tensioning device between the upper and lower part of the frame must be applied, the clamping device must be made comparatively heavy.
  • the straightening rollers of the upper straightening roller set can be adjusted to different extents via a corresponding actuator, so that the space available in the area of the lower straightening roller set is larger, so that the driving roller assigned to the lower part of the frame can be stored in an adjustable manner without increasing the distance to the straightening rollers to have to.
  • the adjustable drive roller can also be rotatably mounted in a rocker which is articulated on the associated frame part and acted upon by the spring or the cylinder. Such storage does not require extensive, lateral guide parts.
  • a spring is used to limit the pressure forces between the drive rollers, essentially constant pressure forces must be expected. With very different bandwidths, however, constant compressive forces lead to very different compressive stresses, so that in such cases it would be desirable to set the maximum compressive forces that can be applied.
  • This setting can be easily achieved with the aid of a support for the adjustable drive roller by a cylinder, specifically by means of a variable application pressure of the cylinder supporting the adjustable drive roller, for example via an adjustable pressure limiting valve.
  • a support via cylinders has the advantage that the drive rollers can be released even though the two frame parts are braced against each other.
  • the belt pass plane of the drive rollers needs to be selected somewhat higher than that of the straightening rollers, so that after the lower, adjustable drive roller has been lowered, the belt can run through the cylinder supporting it without contact between the drive rollers.
  • the belt drive can therefore also be provided by a subordinate driver frame.
  • the frame of the illustrated devices for straightening sheet metal strips is composed of two parts, a fixed frame lower part 1 and an upper part 3 articulated on the lower part via an axis 2, the upper part of the frame being positioned against the lower part with the aid of a tensioning cylinder 4 mounted on the lower part 1 and opposite the latter can be braced.
  • the straightening rollers 6, which are supported on support rollers 5, are mounted in the two frame parts 1 and 3 without a drive.
  • the upper straightening rollers with their support rollers can be adjusted via corresponding actuators 7.
  • the bending radius of the sheet metal strip between the opposing straightening roller sets can thus be selected in accordance with the material properties and the strip thicknesses.
  • the threading of a sheet metal strip can be supported by two driven drive rollers 8, which are arranged upstream of the straightening rollers 6 in the direction of strip travel, the upper drive roller 8 being held in a rocker arm 9 mounted on the lower frame part 1 in order to engage it.
  • a cylinder 10 is articulated between the rocker 9 and the lower frame part 1, which causes the upper drive roller 8 to be adjusted. So that when the band is threaded it cannot get lost, a band lifter 11 is pivotally mounted in the lower part 1 and can be pivoted up into the path of the band to be threaded using an actuating cylinder 12, so that the band start against a guide wall 13 of the upper part of the frame 3 out and is safely guided by this between the straightening rollers.
  • a pair of driving rollers is arranged downstream of the straightening rollers in the direction of belt travel, the driving rollers 14 and 15 of which in the two frame parts 1 and 3 are directly connected to the Straightening rollers 6 are stored.
  • the driving roller 14 of the lower part 1 is mounted in a rocker arm 16 which can be pivoted about the axis 17 of the lower part 1.
  • a compression spring 18 is used according to FIGS. 1 and 2, which is designed according to the embodiment as a plate spring assembly.
  • This resilient support of the lower drive roller 14 requires that the pressure forces acting between the drive rollers 14 and 15 and the band carried out between them do not depend on the tensioning force of the tensioning cylinder 4, but are limited by the force of the spring 18. Since the design of the tensioning cylinder 4 must be matched to the largest, still permissible dimensions of a sheet metal strip to be straightened with the aid of this device, an excessive proportion of these tensioning forces would act on the drive rollers 14, 15 and on the strip guided between them with a smaller sheet thickness. what is prevented by the spring 18.
  • FIGS. 3 and 4 The construction of the device for straightening sheet metal strips shown in FIGS. 3 and 4 is basically the same as the construction according to FIGS. 1 and 2. The difference is that according to FIGS. 3 and 4 instead of the compression spring 18 supporting the rocker arm 16 a cylinder 19 is provided. A constant application can also be effected via this cylinder 19 force applied to the rocker 16, so that again the more v sam nascent between the drive rollers 14 and 15 compressive forces are limited.
  • the cylinder 19 offers the advantage, however, that its pressure can be changed, for example, via an adjustable pressure relief valve. This gives you the option of being able to choose the maximum pressure loads according to the belt dimensions and properties.
  • the cylinder 19 allows the lower drive roller 14 to be lowered below the pass plane of the sheet metal strip, as is indicated in FIG. 4. This is associated with an exemption of the drive rollers 14 and 15, which permits straightening with a belt tension via a separate drive frame.
  • the device shown can therefore also interact with other belt processing device without a drive.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)
EP19810890180 1981-03-23 1981-10-23 Appareil de dressage de tôles Expired EP0060965B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT134381A AT368411B (de) 1981-03-23 1981-03-23 Vorrichtung zum richten von blechbaendern
AT1343/81 1981-03-23

Publications (3)

Publication Number Publication Date
EP0060965A2 true EP0060965A2 (fr) 1982-09-29
EP0060965A3 EP0060965A3 (en) 1983-06-22
EP0060965B1 EP0060965B1 (fr) 1986-01-02

Family

ID=3511847

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19810890180 Expired EP0060965B1 (fr) 1981-03-23 1981-10-23 Appareil de dressage de tôles

Country Status (3)

Country Link
EP (1) EP0060965B1 (fr)
AT (1) AT368411B (fr)
DE (1) DE3173398D1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989007992A1 (fr) * 1988-03-01 1989-09-08 Davy Mckee (Sheffield) Limited Laminage de bande de metal
EP0510278A1 (fr) * 1991-04-23 1992-10-28 Kohan Sendan Kikai Kabushiki Kaisha Dresseuse à rouleaux
FR2796321A1 (fr) * 1999-07-12 2001-01-19 B S B Procede et dispositif d'introduction d'une extremite d'une bande de matiere dans un dispositif redresseur, et systeme d'alimentation d'une presse correspondant
WO2002076649A1 (fr) * 2001-03-21 2002-10-03 Sms Demag Aktiengesellschaft Machine a pre-dresser pour dresser en particulier le debut et la fin de toles ou de bandes metalliques laminees
EP2177292A1 (fr) * 2008-10-17 2010-04-21 Dimeco Alipresse S.A.S. Dispositif de redressage et d'amenée d'une bande de matière semi-rigide dans une machine
CN102950171A (zh) * 2012-11-19 2013-03-06 无锡九条龙汽车设备有限公司 一种上矫直辊装置
WO2014128614A1 (fr) 2013-02-19 2014-08-28 F.I.M.I. - Fabbrica Impianti Macchine Industriali - S.P.A. Dispositif de mise à niveau de rouleau pour tôles métalliques et procédé de mise à niveau d'une tôle métallique avec celui-ci
CN106077159A (zh) * 2016-08-26 2016-11-09 刘书雄 一种工业钢板压直机

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102688905A (zh) * 2012-06-15 2012-09-26 中冶华天南京工程技术有限公司 上下辊可调节式夹送辊装置
CN112605163B (zh) * 2020-12-04 2022-12-30 江永县青鹤铝业有限公司 一种间断给料结构及铝合金板材矫形喷漆装置
CN113275415B (zh) * 2021-06-23 2023-09-05 内蒙古工业大学 一种压直机机械装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2158163A1 (en) * 1971-11-05 1973-06-15 Canto Fernand Strip dresser - with operational speeds which can be varied in very short response times
DE2233932A1 (de) * 1972-07-11 1974-01-24 Demag Ag Stossdaempfer fuer eine walzenanstellvorrichtung
DE2723720A1 (de) * 1976-06-25 1977-12-29 Voest Ag Vorrichtung zum aufrechterhalten einer waehrend eines richtvorganges auf ein metallband ausgeuebten, bestimmten zugspannung
FR2379330A1 (fr) * 1977-02-04 1978-09-01 Zerhoch Vorrichtungs Masch Machine a dresser les toles et materiaux plats
DE3042383A1 (de) * 1979-11-22 1981-06-11 Aida Engineering, Ltd., Sagamihara, Kanagawa Glaettvorrichtung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2158163A1 (en) * 1971-11-05 1973-06-15 Canto Fernand Strip dresser - with operational speeds which can be varied in very short response times
DE2233932A1 (de) * 1972-07-11 1974-01-24 Demag Ag Stossdaempfer fuer eine walzenanstellvorrichtung
DE2723720A1 (de) * 1976-06-25 1977-12-29 Voest Ag Vorrichtung zum aufrechterhalten einer waehrend eines richtvorganges auf ein metallband ausgeuebten, bestimmten zugspannung
FR2379330A1 (fr) * 1977-02-04 1978-09-01 Zerhoch Vorrichtungs Masch Machine a dresser les toles et materiaux plats
DE3042383A1 (de) * 1979-11-22 1981-06-11 Aida Engineering, Ltd., Sagamihara, Kanagawa Glaettvorrichtung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
KUZNECHNO-SHTAMPOVOCHNOE PROIZVODSTVO, Nr. 10, 1978, Seiten 36-39, Moscou, (SU) *

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989007992A1 (fr) * 1988-03-01 1989-09-08 Davy Mckee (Sheffield) Limited Laminage de bande de metal
EP0510278A1 (fr) * 1991-04-23 1992-10-28 Kohan Sendan Kikai Kabushiki Kaisha Dresseuse à rouleaux
FR2796321A1 (fr) * 1999-07-12 2001-01-19 B S B Procede et dispositif d'introduction d'une extremite d'une bande de matiere dans un dispositif redresseur, et systeme d'alimentation d'une presse correspondant
WO2002076649A1 (fr) * 2001-03-21 2002-10-03 Sms Demag Aktiengesellschaft Machine a pre-dresser pour dresser en particulier le debut et la fin de toles ou de bandes metalliques laminees
EP2177292A1 (fr) * 2008-10-17 2010-04-21 Dimeco Alipresse S.A.S. Dispositif de redressage et d'amenée d'une bande de matière semi-rigide dans une machine
FR2937267A1 (fr) * 2008-10-17 2010-04-23 Dimeco Alipresse Dispositif de redressage et d'amenee d'une bande de matiere semi-rigide dans une machine.
CN102950171A (zh) * 2012-11-19 2013-03-06 无锡九条龙汽车设备有限公司 一种上矫直辊装置
WO2014128614A1 (fr) 2013-02-19 2014-08-28 F.I.M.I. - Fabbrica Impianti Macchine Industriali - S.P.A. Dispositif de mise à niveau de rouleau pour tôles métalliques et procédé de mise à niveau d'une tôle métallique avec celui-ci
US9901967B2 (en) 2013-02-19 2018-02-27 F.I.M.I.—Fabbrica Impianti Macchine Industriali—S.P.A. Roll leveller for metal sheets and a process for levelling a metal sheet with it
CN106077159A (zh) * 2016-08-26 2016-11-09 刘书雄 一种工业钢板压直机
CN106077159B (zh) * 2016-08-26 2018-08-28 杭州宝伟汽车零部件有限公司 一种工业钢板压直机

Also Published As

Publication number Publication date
EP0060965A3 (en) 1983-06-22
AT368411B (de) 1982-10-11
DE3173398D1 (en) 1986-02-13
ATA134381A (de) 1982-02-15
EP0060965B1 (fr) 1986-01-02

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