EP0454619B1 - Machine de cintrage d'une tôle en forme de cylindre - Google Patents

Machine de cintrage d'une tôle en forme de cylindre Download PDF

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Publication number
EP0454619B1
EP0454619B1 EP91810267A EP91810267A EP0454619B1 EP 0454619 B1 EP0454619 B1 EP 0454619B1 EP 91810267 A EP91810267 A EP 91810267A EP 91810267 A EP91810267 A EP 91810267A EP 0454619 B1 EP0454619 B1 EP 0454619B1
Authority
EP
European Patent Office
Prior art keywords
roll
machine
rollers
roller
rolls
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.)
Expired - Lifetime
Application number
EP91810267A
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German (de)
English (en)
Other versions
EP0454619A1 (fr
Inventor
Wilhelm Kirchhoff
Simon Schneider
Hans Zeugin
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.)
Chr Haeusler AG
Europipe GmbH
Original Assignee
Chr Haeusler AG
Europipe GmbH
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.)
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Publication date
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Publication of EP0454619A1 publication Critical patent/EP0454619A1/fr
Application granted granted Critical
Publication of EP0454619B1 publication Critical patent/EP0454619B1/fr
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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
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • 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 object of the present invention is therefore to create a forming machine which is suitable for the relatively rapid deformation of thick workpieces into correspondingly thick-walled cylindrical ones
  • “Relatively fast” here means less than 5 minutes to produce a hollow cylindrical body of 10 to 15 m in length and up to a wall thickness of 35 mm.
  • All the rollers are expediently provided with electric or hydraulic motors at both ends, one of the two motors serving to drive the top roller being able to be uncoupled from the roller end and pivoted away.
  • the rollers themselves can be connected in some way to the corresponding ends of the C-shaped stands: it is possible, for example, to provide the top roller with a groove for each stand and to accommodate a band in each groove, the ends of which at the C - Stand is hung up so as to hang up the roller.
  • the lower rollers resting on the support rollers can at best be secured by additional guide means.
  • the forming machine shown in FIG. 1 has four C-shaped stands, designated as a whole by 1 to 4, each formed from two vertical plates A and B, all of which stand on two supports, designated 8 or 9, or on a base and are connected to each other by a shield 10 and a frame part 11. To increase the rigidity, it is of course readily possible to connect the plates of a stand and the stands standing next to one another by further connecting elements.
  • a stub shaft 30 is mounted in the two plates A and B of each C-stand, which is provided with an eccentric disc 31 and a lever arm 32.
  • the free end of the lever arm 32 is connected in an articulated manner to the piston rod 33 of the hydraulic cylinder 34, so that the lever 32 and with it the eccentric disc 31 are rotated by the displacement of the piston rod in the cylinder.
  • the support plate 23 lying on it is displaced upwards or downwards and also somewhat laterally.
  • a block 22 is horizontally displaceably mounted, which can be moved horizontally by the eccentric 36 seated on the shaft 35, the rotating or adjusting mechanism for the shaft 35 mounted in the two plates A and B being shown here purely schematically and with 37 and the connection plate provided with the bore for the eccentric 36 is designated 38.
  • the piston 40 of a hydraulic cylinder 41 is supported which, depending on the loading with the hydraulic fluid, can move up and down on the inclined sliding surface D.
  • a carrier 12 is attached, in which the two support rollers 13 and 14 are freely rotatable. These support rollers 13 and 14 serve to support the upper roller 15, which is suspended here on the carrier 12 or on the shield 10 by means of bands not shown in the drawing and guided in the grooves 15b of this upper roller 15.
  • All three rollers i.e. the upper roller 15 and the lower rollers 24 and 42, of which the latter is the bending roller, are each provided with a drive at their two ends, expediently a hydraulic or electric motor, one of the two being used to drive the Upper roller 15 serving motors can be detachably coupled from the roller and is mounted in such a way that it can be pivoted away from the roller in the same way as is known in other, that is to say ordinary, three- or four-roller machines in which a hollow cylinder is formed Workpiece can be extended laterally.
  • FIG. 3 shows that when the workpiece, that is to say the sheet metal plate 43, is inserted between the upper roller 15 and the lower roller 24, the two lower rollers, that is to say the actual lower roller 24 and the bending roller 42, are at the same height, so that the workpiece 43 is comfortably horizontal can be introduced.
  • the axis 24a of the lower roller 24 is offset to the left by the distance X with respect to the axis 15a of the upper roller 15, as is already shown in FIG.
  • the bending roller 42 is raised in that the hydraulic fluid flowing in pushes the cylinder 41 upwards on the sliding surface D until it has assumed the position shown in FIG.
  • the entire three-roll mill is then put into operation, so that the workpiece 43 is bent as shown in FIG.
  • the rolling process is stopped and the lower rollers 24 and 42 are moved downwards until the workpiece 43 can be pulled out of the forming machine in the axial direction.
  • one of the two drive motors is pivoted away from the top roller 15, as is known in three or four-roller machines.
  • the bending roller 42 is then moved down again until it is at the same height as the lower roller 24.
  • the workpiece can now be introduced into the forming machine with the edge 43b parallel to the edge 43a, the bending roller 42 raised again and the rolling process started again, as shown in FIG. 5.
  • the state shown in FIG. 5 As soon as the state shown in FIG.
  • the main advantage that can be achieved with the above machine is that, as it were, sheets of any thickness and very long can be given a hollow cylindrical shape, since the C-shaped stands, which in themselves can be present in any number and of which each is provided with a pair of support rollers for each roller, which absorb the bending forces and thereby prevent the dreaded bending of the rollers, which is feared in conventional three- or four-roller bending machines and is difficult to control.
  • the size of the distance from the C-stand to the C-stand depends on the size of the load for which the forming machine is designed. For example, a distance of 80-150 cm, ie approximately 120 cm, from the center of the stand to the center of the stand may be appropriate.
  • the workpiece Due to the fact that the workpiece is rolled round in a uniform operation, it is treated very gently, which is particularly important for steels with a high degree of purity, where pre- or reworking of the edges by rollers results in additional strengthening and thus a deterioration in quality Has.
  • this device it is also possible with this device to install an automatic readjustment which contains the element measuring the curvature of the workpiece and a computer controlled by it, which in turn controls the displacement of the lower roller 24 and the bending roller 42.
  • the disadvantage of working with a forming machine, as described above, is that the workpiece has to be turned after the first operation, i.e. when it is half finished and removed from the machine, which is not just what is required Aids but also a large space and a corresponding amount of time are necessary.
  • FIG. 7 where they form a tube production system together with a stitching system.
  • the two forming machines are labeled 50 and 51.
  • the forming machine 50 is supplied with the rectangularly cut sheet metal plates 52 by the conveyor device 53, and first in the longitudinal direction L of the system and then in the transverse direction Q perpendicular thereto.
  • the plate 52 is deformed in the manner described above with reference to FIGS. 3 and 4.
  • the half-machined workpiece 52 is then moved out of the forming machine 50 to the right using aids known per se in the manner already described above and then by means of a cross conveyor, which is indicated in FIG.
  • the second forming machine 51 fed. While the first forming machine 50 is set up in such a way that the opening of the C-stands is directed against the conveyor 53, the forming machine 51 is set up in mirror image, that is, in such a way that the opening of its C-stands is directed against the cross conveyor 54. As a result, the space-consuming turning of the workpiece 52 can be dispensed with and this can be fed to the forming machine 51 in the manner in which it is moved out of the forming machine 50. In the forming machine 51, the second part of the shaping takes place as described above with reference to FIGS. 5 and 6, with FIGS.
  • the entire system can work every two to three minutes, i.e. the system, which contains two forming machines, delivers a cylindrical tube every 2 to 3 minutes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)

Claims (4)

  1. Machine de cintrage pour le roulage cylindrique d'une plaque (43) avec deux rouleaux inférieurs (24, 42) reposant sur des paires de galets d'appui (17, 18, 20, 21) répartis et disposés sur toute la longueur de la machine et avec un rouleau supérieur (15) contre lequel portent plusieurs paires de galets d'appui (13, 14) disposés et répartis de la même façon que les galets d'appui des rouleaux inférieurs dont chacun est fixé sur un bras en forme de C s'étendant vers le haut de bâti à partir des parties de construction portant les galets d'appui des rouleaux inférieurs, l'un au moins des trois rouleaux de mise en forme étant déplaçable dans une direction se trouvant dans un plan perpendiculaire aux axes des rouleaux, caractérisée,
    - en ce que les bras en forme de C s'étendant vers le haut formant des bâtis (1 à 4) qui sont destinés à résister aux efforts de roulage sont constitués par deux plaques verticales disposées côte à côte et reliées à leurs extrémités supérieures par une plaque frontale (10) et à leurs extrémités inférieures par un cadre (11) de façon que sur la plaque frontale (10) soient montés un support (12) avec une paire de galets (13, 14) destinés à l'appui du rouleau supérieur fixe (15) dans la zone de chaque bâti (1 à 4) et les paires de galets d'appui (17, 18, 20, 21) pour les rouleaux inférieurs (24, 42) supportés par lesdits galets et,
    - en ce que chacune des paires des galets d'appui des deux rouleaux inférieurs est déplaçable dans une direction qui se trouve dans un plan perpendiculaire aux axes des rouleaux (15a, 24a) en vue de la modification de la distance entre les rouleaux inférieurs et le rouleau supérieur (15) et à savoir l'un des rouleaux inférieurs dans deux directions au moins sensiblement perpendiculaires l'une par rapport à l'autre et l'autre rouleau dans une direction différente des précédentes.
  2. Machine à cintrer selon la revendication 1, caractérisée en ce que tous les rouleaux de cintrage sont équipés à leurs deux extrémités de moteurs hydrauliques ou électriques.
  3. Machine à cintrer selon la revendication 2, caractérisée en ce que le dispositif d'entraînement du rouleau supérieur (15) est réalisé de manière à pouvoir être désacouplé et à pouvoir être dégagé par pivotement à l'une des extrémités.
  4. Installation pour le cintrage cylindrique de plaques de tôle, caractérisée en ce qu'elle est constituée par deux machines à cintrer (50, 51) selon la revendication 1, un dispositif d'amenée (53) pour l'alimentation de plaques de tôle à la première machine (50), un dispositif d'amenée (54) pour le transport des plaques partiellement cintrées de la première machine (50) vers la deuxième machine (51) et un dispositif pour l'évacuation des plaques cintrées en forme de cylindre hors de la deuxième machine.
EP91810267A 1990-04-12 1991-04-11 Machine de cintrage d'une tôle en forme de cylindre Expired - Lifetime EP0454619B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1272/90 1990-04-12
CH01272/90A CH688437A5 (de) 1990-04-12 1990-04-12 Zum Zylindrisch-Biegen einer Platte dienende Umformmaschine.

Publications (2)

Publication Number Publication Date
EP0454619A1 EP0454619A1 (fr) 1991-10-30
EP0454619B1 true EP0454619B1 (fr) 1994-09-07

Family

ID=4206530

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91810267A Expired - Lifetime EP0454619B1 (fr) 1990-04-12 1991-04-11 Machine de cintrage d'une tôle en forme de cylindre

Country Status (9)

Country Link
US (1) US5115658A (fr)
EP (1) EP0454619B1 (fr)
JP (1) JPH04228226A (fr)
KR (1) KR910018095A (fr)
AT (1) ATE110994T1 (fr)
CH (1) CH688437A5 (fr)
DE (1) DE59102791D1 (fr)
ES (1) ES2062737T3 (fr)
RU (1) RU2036738C1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102672015A (zh) * 2012-05-18 2012-09-19 湖州南浔振建机电成套设备有限公司 金属板件拉伸压弯模具
CN104259268A (zh) * 2014-09-27 2015-01-07 滁州市川奇水泥制品有限公司 一种水泥电杆圆环形钢板圈滚压机

Families Citing this family (24)

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US5632174A (en) * 1995-08-04 1997-05-27 Hunter; Dennis Metal bending machine
AU1299897A (en) * 1996-01-30 1997-08-22 Chr. Haeusler Ag Sheet-metal bending machine
DE19717472A1 (de) * 1997-04-25 1998-10-29 Suban Ag Verfahren und Vorrichtung zum Profilbiegen mit modularen Biegestationen
TW449509B (en) * 1998-11-04 2001-08-11 Kawasaki Steel Co Bending rolls, and pipe formed thereby
US6725699B1 (en) 1999-03-05 2004-04-27 Elpatronic Ag Method for circulary bending a sheet and multicylinder device for carrying out the method
KR100492636B1 (ko) * 2002-11-07 2005-05-30 박윤배 철판 밴딩머신
JP3904529B2 (ja) * 2003-03-31 2007-04-11 株式会社栗本鐵工所 パイプ成形方法及び装置
CN1318157C (zh) * 2004-09-13 2007-05-30 张先荣 下辊中心距水平可调的三辊卷板机
FR2876927B1 (fr) * 2004-10-25 2008-05-16 Jammes Ind Sa Sa Machine a cintrer les toles et ligne de fabrication incorporant une telle machine
WO2009059582A2 (fr) * 2007-11-05 2009-05-14 Bergrohr Gmbh Siegen Machine de pliage pour feuilles de tôle
JP4439573B2 (ja) * 2008-07-29 2010-03-24 株式会社富士機械工作所 円筒成形装置
EP2419227B1 (fr) 2009-04-16 2013-02-13 Bergrohr GmbH Siegen Presse à cintrer pour feuilles de tôle
DE102010041296A1 (de) * 2010-09-23 2012-03-29 Theodor Gräbener GmbH & Co. KG Vierwalzenbiegemaschine und Verfahren zum An- und Rundbiegen bzw.-walzen von Blechen
JP5931485B2 (ja) * 2012-02-14 2016-06-08 株式会社栗本鐵工所 ベンディングロール
CN105711050B (zh) * 2016-03-24 2020-12-18 中山市悦辰电子实业有限公司 一种弧形音箱壳体成型方法
CN105772546B (zh) * 2016-05-03 2017-12-26 贝克尔船舶系统（江苏）有限公司 导流罩外板成型工艺
CN106964677B (zh) * 2017-04-27 2020-04-17 嵊州市杭艺玻璃制品有限公司 一种用于汽车配件生产的铝板卷取装置
CN107321824A (zh) * 2017-07-10 2017-11-07 南京理工大学 一种位置可以自由调节的四辊卷板挠度补偿装置
KR102468677B1 (ko) * 2022-02-07 2022-11-17 김성영 금속판재의 곡면가공용 벤딩장치
KR102447449B1 (ko) * 2022-02-07 2022-09-23 김성영 금속판재의 곡면 및 절곡가공 겸용 벤딩장치
DE102022103815B4 (de) 2022-02-17 2023-12-28 Haeusler Ag Duggingen Biegen eines Blechs zu einem Rohrstück
CN114951368B (zh) * 2022-08-02 2023-03-24 启东市春晨机械有限公司 一种可调折弯半径的折弯机
CN115533525B (zh) * 2022-11-25 2023-03-14 成都永贵东洋轨道交通装备有限公司 一种大型框体自动送料-弯曲-焊接流水生产线
CN118417384B (zh) * 2024-07-05 2024-10-01 江苏金强钢轮有限公司 一种钢圈加工的折弯装置

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102672015A (zh) * 2012-05-18 2012-09-19 湖州南浔振建机电成套设备有限公司 金属板件拉伸压弯模具
CN104259268A (zh) * 2014-09-27 2015-01-07 滁州市川奇水泥制品有限公司 一种水泥电杆圆环形钢板圈滚压机

Also Published As

Publication number Publication date
JPH04228226A (ja) 1992-08-18
EP0454619A1 (fr) 1991-10-30
ES2062737T3 (es) 1994-12-16
CH688437A5 (de) 1997-09-30
US5115658A (en) 1992-05-26
ATE110994T1 (de) 1994-09-15
KR910018095A (ko) 1991-11-30
RU2036738C1 (ru) 1995-06-09
DE59102791D1 (de) 1994-10-13

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