EP0907432B1 - Machine a cintrage de toles a rouleaux presseurs decales - Google Patents
Machine a cintrage de toles a rouleaux presseurs decales Download PDFInfo
- Publication number
- EP0907432B1 EP0907432B1 EP97919438A EP97919438A EP0907432B1 EP 0907432 B1 EP0907432 B1 EP 0907432B1 EP 97919438 A EP97919438 A EP 97919438A EP 97919438 A EP97919438 A EP 97919438A EP 0907432 B1 EP0907432 B1 EP 0907432B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- support
- rolls
- roll
- supported
- bending
- 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
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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
- B21D5/14—Bending sheet metal along straight lines, e.g. to form simple curves by passing between rollers
Definitions
- the present invention is in the field working with sheet materials, such as sheets, with a view to bending them, and more precisely it has for object a machine, called “rolling machine”, intended to bend the sheets according to the preamble of claim 1.
- the object of the present invention is to make available to non-specialized workshops a bending machine which authorizes the bending of sheets fairly wide, thin, and / or made of a material of low hardness.
- the support roller fixed axis is arranged above the set of rollers pressers so that these can be maneuvered vertically from bottom to top by the chocks sloping when they are applied against the sheet metal to be bent, and from top to bottom by the effect of their weight after the bending operation.
- the first difficulty lies in the fact that, so that the contact lines of pressure rollers with the support roller can be fairly close to each other, relative to the measurement diameters of the pressure rollers, so that a sheet introduced between the first pressure roller and the support roller, comes into oblique contact with the upper quarter of the second pressure roller, it is necessary that the diameter pressure rollers is much lower (about 1/3) the diameter of the support roller, and that these rollers are as close as possible to each other; or expected that the flexural strength of a cylindrical beam varies roughly like the power four (D4) of its diameter, their small diameter will cause flexibility important, in practice unacceptable, rollers pressers.
- D4 power four
- the term "as close as possible” means that their center distance e is between d and 1, 5x d , d being the diameter, preferably identical for each, of the pressure rollers, d being itself between 0.2xD and 0.5xD, D being the diameter of the support roller, the effective length of the latter being between 5xD and 10xD, the smallest bending diameter it is possible to obtain with a specific machine being between approximately 1.2 and 1.4xD; it will be noted that the choice of these dimensional relationships also comes under the invention because of the innumerable theoretical possibilities which they offer, a large number of which would prove to be inappropriate in practice, and that only an intuitive appreciation based on a great experience has allowed to eliminate a priori.
- a solution proposed by the invention to solve the problem of bending the rollers pressers consisted in dividing the pressure rollers into sections, each section being supported in rotation, at its ends, by a support piece, the support pieces themselves resting on a beam, preferably in I, so-called intermediate, itself taking indirect support on the general frame of the machine.
- the rollers being shaped in sections, the problem of the "marking" of the sheets by the end edges of the sections; this problem was solved by shifting the sections in the axial direction, so that the edge end of a section of a pressure roller either always opposite a cylindrical part of a section on the other roller, except for the ends of the rollers themselves; preferably the offset chosen is only slightly more than the thickness of the pieces support, which thickness has been minimized by a judicious choice of the suspension of the sections, and thanks a Z-shaped configuration of the support parts; thanks to what, even very thin sheets can be bent without being marked.
- a second solution proposed by the invention more particularly suitable for bending following a smaller radius, but always considering the problem of bending, consisted in adding to the pressure rollers divided into sections supported in rotation, a second stage of small diameter rollers arranged above the previous ones and also supported by the same support parts conformed in Z.
- the rolls of the second stage are continuous over the whole sheet passage width, and are based either on cut rollers with Z-shaped support pieces, more simply on rollers spread over the width of passage and supported by ordinary support parts.
- a rolling machine of the invention consists mainly of a frame made of a massive 1-I frame beam, a roller upper large diameter D, called support roller 2, towards which can be requested from bottom to high, two trains 3,4 of smaller diameter rollers, said pressure rollers, each consisting of a plurality sections of rollers; pressure rollers are supported through support parts such as 5 by an I-beam called intermediate 6.
- the intermediate beam 6 can be operated in vertical translation, between guides ends 26, by an operating device of the kind ramp 7 of cams and sloping wedges 8 resting on the beam-frame 1; the ramp 7 is moved in horizontal translation by a couple of jacks such as 9; the setting of the amplitude of the vertical displacement of the support beam, so the gap between the pressure rollers and the support roller, gap which determines the bending radius, is operated by the horizontal displacement of a stop 10, by means of a screw 11 which can be driven manually in rotation by a crank with gravitational indicator dial 12.
- Support roller 2 is supported at a first end 13, from which it is rotated by a hydraulic motor 14, by a first bearing 15 very robust with double span, and at its other end 16 by a retractable bearing 17 formed in a tiltable part called "gate" 18; this arrangement allows the axial removal of the sheets after bending
- the pressure rollers each consist of a plurality of sections 31, .32, 33 .. of equal length, and it is noted that the adjacent ends of four adjacent sections are supported by a common support part, such as 51, consisting of a thin wall 53 in Z forming with a sole 54 an angle bracket assembly, this conformation gives the support part a particularly high rigidity, which allows the desired small thickness of the wall and allows two adjacent ends of two sections of the same roller to be as close as possible and thus to have to offset two facing rollers, for example 31 and 41, only by a minimum distance l
- the roller sections each consist of a hollow cylinder, such as 44 visible in section, rotatably mounted on a coaxial central shaft 45 by bearings such as 46 arranged in the vicinity of each end of the section; the tree being itself fixedly engaged in a bore opening 57 of the wall adjacent 53 of a support piece 5 (fig.4); each bore, except for those of the end support parts rollers, supports two neighboring trees coaxial.
- Ramp 7 itself is maneuverable in thrust by a couple of hydraulic cylinders such as 9 through a cross piece called "stirrup" 23, to which the ramp is connected.
- the gate 18 to bearing 17 is articulated on the frame 1 to be able to tilt (arrow 19) under the effect of a jack 20 between a vertical position in which the bearing 17 encloses the cylindrical-conical end 16, of the support roller 2, and a horizontal position (not shown) in which it releases the end roller to allow removal of the bent sheet.
- a jack 20 between a vertical position in which the bearing 17 encloses the cylindrical-conical end 16, of the support roller 2, and a horizontal position (not shown) in which it releases the end roller to allow removal of the bent sheet.
- the gate cylinder 20, the cylinders 9 for operating the ramp 7 and the hydraulic motor 14 for driving the support roller 2 are supplied with fluid under pressure by a common hydraulic power plant not shown but which is advantageously fixed in the vicinity from the end of the general frame where the engine is located.
- the adjustment means mainly constituted by gravitational dials
- the operator who does not have to have a particular qualification, to make the various adjustments from an empirically established table, for obtain the desired bend.
- the hydraulic motor can be replaced by a simple electric gear motor or by a brushless type electric motor, and the cylinders hydraulic by ball screws and spindle motor; we also note that the manual operating device can adjustment means can be replaced by a set placed under digital control so that you can do vary the bending radius in a programmed manner during of the passage of the same sheet, and thus finally obtain an oval, elliptical or polygonal shell with angles rounded.
- a rolling machine relaunch of the second solution has a stage lower rollers such as 31, of axis 31 ′, which are at number of three and which serve as support for the two pressure rollers 32, of axis 32 ', of small diameter and enough close together, located above them.
- roller 32 of the previous figure is a full roller while a support roller 31 is mounted on a bearing balls on a fixed shaft 33; rollers 31 and 32 are supported by support parts 34 in Z such as the part of fig. 8, similar to that of fig, 4, on which are shown the axes 31 'and 32' of the rollers
- the pressure rollers 42 are continuous, that is to say that they extend over the entire width of passage of the sheets, lengthwise of the rolling machine; Rolls; Coils 42 are supported from place to place by couples rollers such as 58 arranged on either side of a intermediate support part such as 44, or on one side an end support piece such as 45.
- the machine can be equipped with automatic variation means radius of curvature during the rolling operation, so as to produce ferrules (rolled sheets) with profile non-circular (for example elliptical, or triangular to rounded corners, etc.).
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Delivering By Means Of Belts And Rollers (AREA)
- Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
- Manufacture Of Wood Veneers (AREA)
- Press Drives And Press Lines (AREA)
- Veneer Processing And Manufacture Of Plywood (AREA)
Description
- de caractéristiques permanentes du rouleau d'appui et de ses organes, de compensation de flexion, entraínement et de maintien, et des moyens de manoeuvre des rouleaux presseurs, et
- de caractéristiques alternatives, grosso modo au nombre de trois, des rouleaux presseurs proprement dits, et de leurs moyens support
- la fig.1 ; est une élévation de coté d'une rouleuse de l'invention en comportant, à ce titre, les caractéristiques premières et secondes, ces dernières relevant d'une première solution de réalisation des rouleaux presseurs,
- la fig.2 est une coupe selon AA de la rouleuse de la figure précédente, illustrant schématiquement et à plus grande échelle la disposition et les rapports dimensionnels des différents rouleaux,
- la fig.3 illustre en plan et à plus grande échelle la disposition constructive des rouleaux presseurs et de leurs pièces support,
- la fig.4 est illustration en perspective d'un palier de la figure précédente, et
- la fig.5 est une vue partielle en perspective écorchée de la rouleuse de la fig.1,
- la fig.6 est illustration schématique en coupe transversale d'une rouleuse selon la deuxième solution de réalisation des rouleaux presseurs,
- la fig.7 est un coupe selon AA de la figure précédente
- la fig.8 est illustration en perspective d'un palier de la figure précédente, et
- la fig.9 est une illustration schématique simplifiée en perpective des rouleaux d'une rouleuse selon la troisième solution de réalisation des rouleaux presseurs, et
- les fig.10 et 11 illustrent, vus en bout, les rouleaux presseurs de la figure précédente avec leur galets support et leur pièces support d'extrémité (fig.10) et intermédiaire (fig.11), et
- la fig.12 illustre dans une direction perpendiculaire à celle des figures précédentes, l'agencement des galets support sur leur pièce support.
- d :
- diamètre des rouleaux presseurs (113 mm),
- e :
- entraxe des rouleaux presseurs (120 mm),
- D :
- diamètre du rouleau0 d'appui (310 mm),
- L :
- longueur efficiente du rouleau d'appui 2080 mm);
Claims (9)
- Machine de cintrage de tôles, dite rouleuse, du type de rouleuse constituée principalement d'un rouleau supérieur, dit d'appui (2) de diamètre D autour duquel est destinée à s'enrouler la tôle après cintrage, supporté à une extrémité, dite seconde (16), par un palier escamotable (17) pour permettre le retrait, par translation axiale, de la tôle roulée, et de rouleaux inférieurs, dits presseurs (3,4), destinés à faire pression sur le rouleau d'appui , caractérisée :en ce que le rouleau d'appui (2) autour duquel s'enroule la tôle après cintrage, est relié à son autre extrémité, dite première (13), à un moteur (14) et est supporté à cette première extrémité par un palier fixe (15), l'axe du rouleau d'appui restant fixe, et,en ce que les rouleaux presseurs (3,4,31,32,33,41, 42, 43) sont lisses et disposés par paire à entraxe (e) fixe et supportés par une pluralité de paliers (5,51,52) ou de rouleaux (31,31') ou de galets (58), supportés eux-mêmes par une poutre (6) reposant elle-même sur le bâti (1) par l'intermédiaire d'un dispositif de manoeuvre en translation verticale.
- Machine selon la revendication 1, caractérisé :
en ce que l'entraxe e des rouleaux presseurs (3,4) est compris entre d et 1,5xd, d étant leur diamètre, d étant lui même compris entre 0,2xD et 0,5xD, D étant le diamètre du rouleau d'appui (2), la longueur effective L de ce dernier étant elle-même comprise entre 5xD et 10xD. - Machine selon l'une quelconque des revendications 1 et 2, caractérisée :
en ce que les rouleaux presseurs (3,4,32) sont divisés en tronçons (31,32, 32',33,..), chaque tronçon étant supporté en rotation, à ses extrémités, par une pièce support (5,51,52,..) les pièces support reposant elles-mêmes sur la poutre intermédiaire (6), - Machine selon la revendication 3, caractérisée :en ce que les tronçons (31,32,33) d'un rouleau sont décalés par rapport à ceux (41,42,43) de l'autre rouleau dans le sens axial, et sont supportés par des pièces support (51) constituées d'une paroi mince (53) en Z formant avec une semelle (54) en ensemble en cornièrede telle sorte que le bord d'extrémité d'un tronçon d'un rouleau presseur soit toujours en regard d'une partie cylindrique d'un tronçon de l'autre rouleau, à l'exception des extrémités des rouleaux eux-mêmes (fig.1-4).
- Machine selon la revendication 3, caractérisé :
en ce que les rouleaux presseurs (32) divisés en tronçons forment un second étage de rouleaux de petit diamètre (32, axe 32') disposés au dessus des rouleaux précédents (31, axe 31'), et supportés eux aussi par des pièces support en Z (51), les rouleaux presseurs (32) et support (31) étant en tronçons discontinus. - Machine selon l'une quelconque des revendications 1 et 2, caractérisée :
en ce que les rouleaux presseurs(42) sont continus sur toute la largeur de passage des tôles, et forment un second étage de rouleaux reposant soit sur des rouleaux tronçonnés (31), soit sur des galets (58). - Machine selon l'une quelconque des revendication 3 à 6, caractérisée :
en ce que les tronçons de rouleau sont constitués chacun d'un cylindre creux, (44) monté rotatif sur un arbre central coaxial (45) par des roulements (46) disposés au voisinage de chacune des extrémités du tronçon, l'arbre étant lui-même engagé fixement dans un alésage débouchant (57) de la paroi adjacente (53) d'une pièce support (5, 51), chaque alésage, à l'exception de ceux des pièces support d'extrémité des rouleaux, supportant deux arbre voisins coaxiaux. - Machine selon l'une quelconque des revendications précédentes, caractérisée :en ce que le rouleau d'appui est supporté à une première extrémité (13) par un premier palier (15) à double portée, et à son autre extrémité (16) par un palier escamotable (17) ménagé dans une pièce basculable (18) dite portillon, eten ce que le portillon (18) à palier (17) est articulé sur le bâti (1) pour pouvoir basculer (flèche 19) sous l'effet d'un vérin (20) entre une position verticale dans laquelle le palier (17) enserre une extrémité cylindro-conique (16) du rouleau d'appui (2), et une position horizontale dans laquelle il libère l'extrémité du rouleau pour permettre le retrait de la tôle cintrée.
- Machine selon l'une quelconque des revendications précédentes, caractérisée :
en ce que le dispositif de manoeuvre en translation verticale est un mécanisme à "rampe de cames" (23) et à "cales pentées" (8).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9607375 | 1996-06-06 | ||
FR9607375A FR2750061B1 (fr) | 1996-06-06 | 1996-06-06 | Machine de cintrage de toles a rouleaux presseurs decales |
PCT/FR1997/000563 WO1997046336A1 (fr) | 1996-06-06 | 1997-03-28 | Machine a cintrage de toles a rouleaux presseurs decales |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0907432A1 EP0907432A1 (fr) | 1999-04-14 |
EP0907432B1 true EP0907432B1 (fr) | 2001-06-13 |
Family
ID=9493034
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97919438A Expired - Lifetime EP0907432B1 (fr) | 1996-06-06 | 1997-03-28 | Machine a cintrage de toles a rouleaux presseurs decales |
Country Status (12)
Country | Link |
---|---|
US (1) | US6079247A (fr) |
EP (1) | EP0907432B1 (fr) |
CN (1) | CN1089282C (fr) |
AT (1) | ATE202020T1 (fr) |
AU (1) | AU2391497A (fr) |
CA (1) | CA2257192A1 (fr) |
DE (2) | DE69705221D1 (fr) |
ES (1) | ES2158553T3 (fr) |
FR (1) | FR2750061B1 (fr) |
TW (1) | TW383236B (fr) |
WO (1) | WO1997046336A1 (fr) |
ZA (1) | ZA974614B (fr) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6918306B1 (en) * | 2003-09-08 | 2005-07-19 | The United States Of America As Represented By The Secretary Of The Navy | Adjustable flexure loading apparatus for testing long span beams |
CN102950174A (zh) * | 2012-11-19 | 2013-03-06 | 无锡九条龙汽车设备有限公司 | 一种下弯曲辊装置 |
JP6435205B2 (ja) * | 2015-02-06 | 2018-12-05 | 株式会社エフテック | ロール成形装置 |
CN106140912A (zh) * | 2015-04-15 | 2016-11-23 | 浙江工商职业技术学院 | 金属带压印机压印深度调整机构 |
CN107755479B (zh) * | 2017-11-16 | 2023-07-25 | 安徽德系重工科技有限公司 | 一种分体式四辊波纹卷板机 |
CN108817149B (zh) * | 2018-05-29 | 2019-08-30 | 江苏金泽重机集团有限公司 | 一种水平下调式数控卷板机 |
CN110962198B (zh) * | 2019-12-23 | 2021-08-10 | 河北金融学院 | 原木卷曲成型装置 |
CN112108851A (zh) * | 2020-10-20 | 2020-12-22 | 广东昌恒智能科技有限公司 | 一种轴承压入滚筒装置及方法 |
CN113210467A (zh) * | 2021-05-21 | 2021-08-06 | 安徽省航天机床制造股份有限公司 | 一种带支撑辊的变中心距卷板机 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB189503142A (en) * | 1895-02-13 | 1895-03-23 | Wallace Fairweather | Improvements in Roller Bending-machines. |
DE420013C (de) * | 1923-07-25 | 1925-10-16 | Hugo Junkers Dr Ing | Vorrichtung zur Herstellung von Laengsnaht-Rohren |
FR974789A (fr) * | 1948-04-21 | 1951-02-26 | Joshua Bigwood & Son | Perfectionnements apportés aux machines pour courber les tôles |
US4056962A (en) * | 1976-08-13 | 1977-11-08 | Edeco-West, Inc. | Rolling machine assembly |
FR2528334A1 (fr) * | 1982-06-09 | 1983-12-16 | Jammes Ind Sa | Machine de cintrage incorporant des moyens de maintien paralleles des rouleaux |
FR2528335A1 (fr) * | 1982-06-09 | 1983-12-16 | Jammes Ind Sa | Machine de cintrage a rouleaux creneles incorporant des moyens de prise en compte de l'epaisseur des toles et des moyens compensateurs de fleche |
US4706488A (en) * | 1984-05-16 | 1987-11-17 | Kaiser Steel Corporation | Method of roll forming cylindrical pipe |
FR2637206B1 (fr) * | 1988-10-05 | 1994-05-27 | Jammes Ind Sa | Rouleuse a rouleaux creneles automatisable |
JPH03118924A (ja) * | 1989-10-01 | 1991-05-21 | Iwate Pref Gov Chiyuushiyou Kigyo Shinko Koushiya | ベンディング装置 |
CN2136701Y (zh) * | 1992-07-25 | 1993-06-23 | 南通市重型机器厂 | 卷制薄板的小型卷板机 |
-
1996
- 1996-06-06 FR FR9607375A patent/FR2750061B1/fr not_active Expired - Fee Related
-
1997
- 1997-03-28 CN CN97195213A patent/CN1089282C/zh not_active Expired - Fee Related
- 1997-03-28 CA CA002257192A patent/CA2257192A1/fr not_active Abandoned
- 1997-03-28 US US09/194,630 patent/US6079247A/en not_active Expired - Lifetime
- 1997-03-28 EP EP97919438A patent/EP0907432B1/fr not_active Expired - Lifetime
- 1997-03-28 WO PCT/FR1997/000563 patent/WO1997046336A1/fr active IP Right Grant
- 1997-03-28 AT AT97919438T patent/ATE202020T1/de not_active IP Right Cessation
- 1997-03-28 DE DE69705221A patent/DE69705221D1/de not_active Expired - Lifetime
- 1997-03-28 ES ES97919438T patent/ES2158553T3/es not_active Expired - Lifetime
- 1997-03-28 AU AU23914/97A patent/AU2391497A/en not_active Abandoned
- 1997-03-28 DE DE69705221T patent/DE69705221T4/de not_active Expired - Lifetime
- 1997-05-27 ZA ZA9704614A patent/ZA974614B/xx unknown
- 1997-06-03 TW TW086107585A patent/TW383236B/zh not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
ZA974614B (en) | 1997-12-30 |
US6079247A (en) | 2000-06-27 |
FR2750061A1 (fr) | 1997-12-26 |
AU2391497A (en) | 1998-01-05 |
FR2750061B1 (fr) | 1998-09-11 |
CN1221360A (zh) | 1999-06-30 |
CA2257192A1 (fr) | 1997-12-11 |
ATE202020T1 (de) | 2001-06-15 |
CN1089282C (zh) | 2002-08-21 |
DE69705221D1 (de) | 2001-07-19 |
DE69705221T2 (de) | 2002-03-14 |
DE69705221T4 (de) | 2003-05-08 |
EP0907432A1 (fr) | 1999-04-14 |
ES2158553T3 (es) | 2001-09-01 |
TW383236B (en) | 2000-03-01 |
WO1997046336A1 (fr) | 1997-12-11 |
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