EP2390017B1 - Roll-bending machine with three rollers - Google Patents

Roll-bending machine with three rollers Download PDF

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Publication number
EP2390017B1
EP2390017B1 EP10164147.0A EP10164147A EP2390017B1 EP 2390017 B1 EP2390017 B1 EP 2390017B1 EP 10164147 A EP10164147 A EP 10164147A EP 2390017 B1 EP2390017 B1 EP 2390017B1
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EP
European Patent Office
Prior art keywords
roller
bending machine
roll
hydraulic cylinders
carriages
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.)
Active
Application number
EP10164147.0A
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German (de)
French (fr)
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EP2390017A1 (en
Inventor
David Senn
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.)
Haeusler Holding AG
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Haeusler Holding AG
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Priority to EP10164147.0A priority Critical patent/EP2390017B1/en
Priority to PT101641470T priority patent/PT2390017E/en
Publication of EP2390017A1 publication Critical patent/EP2390017A1/en
Application granted granted Critical
Publication of EP2390017B1 publication Critical patent/EP2390017B1/en
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    • 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 three-roll round bending machine with a top roll and two bottom rolls, according to the preamble of claim 1.
  • Bending machines of this type for the round rolling of sheets are known.
  • the adjustment of the top roller for applying the forming force to the sheet to be bent takes place in the conventional machines at least on the drive side by hydraulic cylinders which are arranged centrally above or below the upper roller.
  • This construction has several disadvantages. On the one hand, cones can not be bent around the drive stand. Secondly, due to this design details, not only does the machine have a great overall height or depth, but it also has a high weight.
  • the invention has for its object to overcome these disadvantages of conventional round bending machines.
  • each of the two bearings are assigned at the same distance from the roll axis two lying in a plane perpendicular to the roll axis hydraulic cylinder.
  • the bearings of the lower rollers are provided with hydraulic cylinders for their horizontal adjustment.
  • the machine shown schematically in the figures is a three-roll bending machine for bending a sheet with a top roll 2 and two bottom rolls 3.
  • the top roll with its drive 1 is the drive side in a first carriage 4 and at its other end in a similar to the first carriage 5 stored.
  • the respective one roller end associated carriage is guided in each case one anchored to the foundation machine frame 6 in the vertical direction movable.
  • On both sides of each carriage vertically acting hydraulic cylinders 7 are arranged, which are supported on the one hand in the machine stand and on the other hand with their piston 8 move the carriage vertically. By pressurizing the hydraulic cylinder 7 thus the carriages 4, 5 are pressed down and with them the upper roller 2 against the lower rollers or against the passing therebetween sheet.
  • the two lower rollers 3 are also mounted in two bearing blocks or carriage 9, which are guided horizontally in the machine frame.
  • Horizontal-acting hydraulic cylinders 10 are arranged to the axial planes of the lower rollers so that their pistons, when pressurized, move the bearing blocks 9 and with them the position of the lower rollers and thus vary the bending geometry.
  • the drive of the lower rollers is moved inwards to allow the described storage and movement of the upper roller.
  • the four hydraulic cylinders 7 for adjusting the top roller are identical. This has the advantage that for a possibly necessary replacement only a single model must be maintained.
  • An advantage of the solution according to the invention is that a comparatively compact design is possible, which also provides a weight reduction of about 25% compared to the conventional design. This allows for a weaker design of the foundation for the machine. The height of the machine and thus the space required is lower.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Press Drives And Press Lines (AREA)

Description

Die Erfindung betrifft eine Dreiwalzen-Rundbiegemaschine mit einer Oberwalze und zwei Unterwalzen, gemäss dem Oberbegriff des Anspruchs 1.The invention relates to a three-roll round bending machine with a top roll and two bottom rolls, according to the preamble of claim 1.

Rundbiegemaschinen dieser Art zum Rundwalzen von Blechen sind bekannt. Die Verstellung der Oberwalze zum Aufbringen der Umformkraft auf das zu biegende Blech erfolgt bei den herkömmlichen Maschinen mindestens auf der Antriebsseite durch Hydraulikzylinder, die zentrisch über oder unter der Oberwalze angeordnet sind. Diese Konstruktion hat mehrere Nachteile. Zum einen können Konen nicht um den Antriebsständer gebogen werden. Zum zweiten ergibt sich allein aufgrund dieses Konstruktionsdetails nicht nur eine grosse Bauhöhe bzw. -tiefe der Maschine, sondern auch ein hohes Gewicht.Bending machines of this type for the round rolling of sheets are known. The adjustment of the top roller for applying the forming force to the sheet to be bent takes place in the conventional machines at least on the drive side by hydraulic cylinders which are arranged centrally above or below the upper roller. This construction has several disadvantages. On the one hand, cones can not be bent around the drive stand. Secondly, due to this design details, not only does the machine have a great overall height or depth, but it also has a high weight.

Aus JP 08 150418 ist beispielsweise eine Dreiwalzen-Rundbiegemaschine bekannt, bei welcher die dem Verstellen der Oberwalze dienenden Hydraulikzylinder oberhalb des Ni-veaus der Oberwalze angeordnet sind. Dadurch ist der Raum oberhalb der Oberwalze nicht frei. Zudem hat diese Anlage eine grosse Bauhöhe und benötigt drei Hydraulikzylinder pro Lager.Out JP 08 150418 For example, a three-roll bending machine is known in which the adjustment of the upper roll serving hydraulic cylinder are arranged above the Ni-vale of the upper roll. As a result, the space above the top roller is not free. In addition, this system has a large height and requires three hydraulic cylinders per bearing.

Des Weiteren ist im Falle der Verwendung von ziehenden Zylindern ein sehr tiefes und aufwendiges Fundament oder bei der Verwendung von drückenden Zylindern eine sehr hohe Bauweise des Klapplagers notwendig.Furthermore, in the case of the use of towing cylinders, a very deep and complex foundation or, when using pressing cylinders, a very high construction of the folding bearing is necessary.

Der Erfindung liegt die Aufgabe zugrunde, diese Nachteile der herkömmlichen Rundbiegemaschinen zu beheben.The invention has for its object to overcome these disadvantages of conventional round bending machines.

Erfindungsgemäss wird dies durch eine Dreiwalzen-Rundbiegemaschine mit den Merkmalen des Anspruchs 1 erreicht.According to the invention this is achieved by a three-roll bending machine with the features of claim 1.

Gemäss einer bevorzugten Ausführungsform der Erfindung sind jedem der beiden Lager in gleichem Abstand von der Walzenachse zwei in einer zur Walzenachse senkrechten Ebene liegende Hydraulikzylinder zugeordnet. Bei einer weiteren bevorzugten Ausführungsform sind auch die Lager der Unterwalzen mit Hydraulikzylindern zu deren horizontaler Verstellung versehen.According to a preferred embodiment of the invention, each of the two bearings are assigned at the same distance from the roll axis two lying in a plane perpendicular to the roll axis hydraulic cylinder. In a further preferred embodiment, the bearings of the lower rollers are provided with hydraulic cylinders for their horizontal adjustment.

Im Folgenden wird anhand der beiliegenden Zeichnungen ein bevorzugtes Ausführungsbeispiel der Erfindung beschrieben. Es zeigen

Fig. 1
eine schematische perspektivische Ansicht einer Ausführungsform einen Dreiwalzen-Rundbiegemaschine nach der Erfindung
Fig. 2
eine Seitenansicht der in Fig. 1 gezeigten Maschine, teilweise im Schnitt
Fig. 3
eine Frontansicht der in Fig. 1 gezeigten Maschine, teilweise im Schnitt
In the following, a preferred embodiment of the invention will be described with reference to the accompanying drawings. Show it
Fig. 1
a schematic perspective view of an embodiment of a three-roll bending machine according to the invention
Fig. 2
a side view of in Fig. 1 shown machine, partly in section
Fig. 3
a front view of in Fig. 1 shown machine, partly in section

Die in den Figuren schematisch gezeigte Maschine ist eine Dreiwalzen-Rundbiegemaschine zum Rundbiegen eines Blechs mit einer Oberwalze 2 und zwei Unterwalzen 3. Die Oberwalze mit ihrem Antrieb 1 ist antriebsseitig in einem ersten Schlitten 4 und mit ihrem anderen Ende in einem mit dem ersten ähnlichen Schlitten 5 gelagert. Der jeweils einem Walzenende zugeordnete Schlitten ist in je einem mit dem Fundament verankerten Maschinenständer 6 in vertikaler Richtung beweglich geführt. Zu beiden Seiten jedes Schlittens sind senkrecht wirkende Hydraulikzylinder 7 angeordnet, die einerseits im Maschinenständer abgestützt sind und andererseits mit ihrem Kolben 8 den Schlitten vertikal bewegen. Durch Druckbeaufschlagung der Hydraulikzylinder 7 werden somit die Schlitten 4, 5 nach unten und mit ihnen die Oberwalze 2 gegen die Unterwalzen bzw. gegen das dazwischen durchlaufende Blech gepresst.The machine shown schematically in the figures is a three-roll bending machine for bending a sheet with a top roll 2 and two bottom rolls 3. The top roll with its drive 1 is the drive side in a first carriage 4 and at its other end in a similar to the first carriage 5 stored. The respective one roller end associated carriage is guided in each case one anchored to the foundation machine frame 6 in the vertical direction movable. On both sides of each carriage vertically acting hydraulic cylinders 7 are arranged, which are supported on the one hand in the machine stand and on the other hand with their piston 8 move the carriage vertically. By pressurizing the hydraulic cylinder 7 thus the carriages 4, 5 are pressed down and with them the upper roller 2 against the lower rollers or against the passing therebetween sheet.

Die beiden Unterwalzen 3 sind ebenfalls in je zwei Lagerblöcken oder Schlitten 9 gelagert, die in den Maschinenständer horizontal geführt sind. Horizontal wirkende Hydraulikzylinder 10 sind so zu den Achsebenen der Unterwalzen angeordnet, dass ihre Kolben bei Druckbeaufschlagung die Lagerblöcke 9 und mit ihnen die Position der Unterwalzen verschieben und damit die Biegegeometrie variieren.The two lower rollers 3 are also mounted in two bearing blocks or carriage 9, which are guided horizontally in the machine frame. Horizontal-acting hydraulic cylinders 10 are arranged to the axial planes of the lower rollers so that their pistons, when pressurized, move the bearing blocks 9 and with them the position of the lower rollers and thus vary the bending geometry.

Im Vergleich zur herkömmlichen Bauweise, bei welcher der Antrieb der Unterwalzen von deren Stirnseite her erfolgt, ist beim vorliegenden Ausführungsbeispiel der Antrieb der Unterwalzen nach innen verlegt, um die beschriebene Lagerung und Bewegung der Oberwalze zu ermöglichen.Compared to the conventional construction, in which the drive of the lower rollers takes place from the front side, in the present embodiment, the drive of the lower rollers is moved inwards to allow the described storage and movement of the upper roller.

Bei dem vorliegenden Ausführungsbeispiel sind die vier Hydraulikzylinder 7 für das Verstellen der Oberwalze identisch. Dies hat den Vorteil, dass für einen ggf. nötigen Austausch nur ein einziges Modell vorgehalten werden muss.In the present embodiment, the four hydraulic cylinders 7 for adjusting the top roller are identical. This has the advantage that for a possibly necessary replacement only a single model must be maintained.

Ein Vorteil der erfindungsgemässen Lösung besteht darin, dass eine vergleichsweise kompakte Bauweise möglich wird, die ausserdem eine Gewichtsreduktion von ca. 25% gegenüber der herkömmlichen Bauweise erbringt. Dies ermöglicht eine schwächere Auslegung des Fundaments für die Maschine. Auch die Bauhöhe der Maschine und damit der Raumbedarf ist geringer.An advantage of the solution according to the invention is that a comparatively compact design is possible, which also provides a weight reduction of about 25% compared to the conventional design. This allows for a weaker design of the foundation for the machine. The height of the machine and thus the space required is lower.

Ein weiterer wesentlicher Vorteil besteht darin, dass alle Hydraulikzylinder in gleicher Weise mit Druckbeaufschlagung arbeiten, d.h. dass ihre Kolbenfläche beaufschlagt ist. Durch die symmetrische Anordnung sind die Angriffspunkte für jede Walze symmetrisch zur Walzenmitte.Another significant advantage is that all hydraulic cylinders operate in the same way with pressurization, i. that their piston surface is acted upon. Due to the symmetrical arrangement, the points of application for each roller are symmetrical to the roller center.

Durch den niedrigeren Aufbau auf der Antriebsseite können Konen um den Antriebsständer gebogen werden. Es treten keine Schubkräfte auf das Klapplager auf. Schliesslich gestaltet sich auch der Aus- und Einbau der Hydraulikzylinder sehr einfach, wodurch die Anlage wartungsfreundlich ist.Due to the lower design on the drive side, cones can be bent around the drive stand. There are no pushing forces on the folding bearing. Finally, the removal and installation of the hydraulic cylinder is very simple, making the system easy to maintain.

Claims (4)

  1. Three-roller bending machine having one top roller (2) and two bottom rollers (3) which are rotatably supported in a machine frame (6), the top roller and/or the bottom rollers being motor-driven and hydraulically movable, characterized in that the top roller (2) has two bearing ends supported in carriages (4, 5) of the same type, and hydraulic cylinders (7), used for moving the carriages, for applying a forming force to a metal sheet to be bent are situated in pairs to the side of the top roller.
  2. Three-roller bending machine according to Claim 1, characterized in that two hydraulic cylinders (7) situated in a plane perpendicular to the roller axis are associated with each of the two carriages, at the same distance from the roller axis.
  3. Three-roller bending machine according to Claim 1, characterized in that the hydraulic cylinders used for moving the top roller have identical dimensions and types of stresses.
  4. Three-roller bending machine according to Claim 1, characterized in that the bottom rollers (3) are provided with an internal drive.
EP10164147.0A 2010-05-27 2010-05-27 Roll-bending machine with three rollers Active EP2390017B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP10164147.0A EP2390017B1 (en) 2010-05-27 2010-05-27 Roll-bending machine with three rollers
PT101641470T PT2390017E (en) 2010-05-27 2010-05-27 Roll-bending machine with three rollers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10164147.0A EP2390017B1 (en) 2010-05-27 2010-05-27 Roll-bending machine with three rollers

Publications (2)

Publication Number Publication Date
EP2390017A1 EP2390017A1 (en) 2011-11-30
EP2390017B1 true EP2390017B1 (en) 2015-07-22

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PT (1) PT2390017E (en)

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CN102380528A (en) * 2011-12-06 2012-03-21 南通恒力重工机械有限公司 Upper-roller device for downward adjusting plate-reeling machine
CN102672017A (en) * 2012-05-31 2012-09-19 江阴大地装备股份有限公司 Bending machine
CN102716947B (en) * 2012-06-25 2015-05-13 长治市钜星锻压机械设备制造有限公司 Plate reeling machine with balance mechanism
CN103071704A (en) * 2013-01-10 2013-05-01 长治钢铁（集团）锻压机械制造有限公司 Veneer reeling machine with oil cylinder arranged at lower part
ITTO20130081A1 (en) * 2013-01-31 2014-08-01 Roccia S R L CALENDER PREFERABLY WITH A DOUBLE CALL WITH A LOWER STRUCTURE
CN103920757A (en) * 2014-03-20 2014-07-16 成都市龙泉驿区齐盛机械厂 Novel veneer reeling machine
CN103934322A (en) * 2014-04-22 2014-07-23 南通超力卷板机制造有限公司 Three-roller plate rolling machine
CN105170725A (en) * 2015-07-23 2015-12-23 浙江德清森朗装饰材料有限公司 Plate rolling machine
CN105195565B (en) * 2015-10-09 2017-06-23 安徽省航天机床制造股份有限公司 All-hydraulic four-roller numerical control plate bending roll
CN105363845A (en) * 2015-12-04 2016-03-02 苏州明远冲压件厂 Electric non-dismantling returned material rolling device
CN105363848A (en) * 2015-12-04 2016-03-02 苏州明远冲压件厂 Disassembly-free discharging circle rolling device
CN105344757A (en) * 2015-12-04 2016-02-24 苏州明远冲压件厂 Non-dismantling circle rolling device
CN105382060A (en) * 2015-12-04 2016-03-09 苏州明远冲压件厂 Returned material edge rolling device
CN105363842A (en) * 2015-12-04 2016-03-02 苏州明远冲压件厂 Pneumatic non-dismantling returned material edge rolling device
CN106140905A (en) * 2016-08-19 2016-11-23 南通超力卷板机制造有限公司 The control system of three roller symmetrical expression numerical control plate bending rolls
CN106670274A (en) * 2016-11-17 2017-05-17 新乡市金鑫化工设备有限责任公司 Hydraulic plate rolling machine
CN107737822A (en) * 2017-09-07 2018-02-27 江苏吉航重型机床有限公司 A kind of three rolls plate bending machine
CN112091547B (en) * 2020-10-13 2021-07-30 安徽玄同机电科技有限公司 Winding mechanism for winding thin-skin annular parts
CN111992599B (en) * 2020-10-29 2021-01-22 江苏金汇铝板带有限公司 Sector arc strip forming device and method for aluminum plate production
CN113458197A (en) * 2021-05-13 2021-10-01 汪新纪 Flexible roll-bending numerical control plate bending machine
CN113976690A (en) * 2021-11-19 2022-01-28 安徽开乐专用车辆股份有限公司 Free floating carrier roller device for rolling and forming asymmetric large-angle conical workpiece
CN114393043A (en) * 2021-12-29 2022-04-26 江苏华能节能科技有限公司 High-silicon aluminum alloy rolling equipment with adjustable thickness

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DE3128259C2 (en) * 1981-07-17 1985-05-23 Schäfer, August Wilhelm, 5901 Wilnsdorf Three roll bending machine
JPS61193724A (en) * 1985-02-23 1986-08-28 Nippon Kokan Kk <Nkk> Bending roller device
JP2818121B2 (en) * 1994-11-29 1998-10-30 富士車輌株式会社 Bending roll machine
US5632174A (en) * 1995-08-04 1997-05-27 Hunter; Dennis Metal bending machine

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Publication number Publication date
PT2390017E (en) 2015-11-04
EP2390017A1 (en) 2011-11-30

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