EP0204290B2 - Machine à cintrer les tôles pour fabriquer une enveloppe de cône à partir d une tôle découpée - Google Patents

Machine à cintrer les tôles pour fabriquer une enveloppe de cône à partir d une tôle découpée Download PDF

Info

Publication number
EP0204290B2
EP0204290B2 EP86107426A EP86107426A EP0204290B2 EP 0204290 B2 EP0204290 B2 EP 0204290B2 EP 86107426 A EP86107426 A EP 86107426A EP 86107426 A EP86107426 A EP 86107426A EP 0204290 B2 EP0204290 B2 EP 0204290B2
Authority
EP
European Patent Office
Prior art keywords
workpiece
roller
bending
sheet
conical shell
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
EP86107426A
Other languages
German (de)
English (en)
Other versions
EP0204290A2 (fr
EP0204290B1 (fr
EP0204290A3 (en
Inventor
Hans Zeugin
Heinz Ludwig
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
Original Assignee
Chr Haeusler 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=4231875&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0204290(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Chr Haeusler AG filed Critical Chr Haeusler AG
Priority to AT86107426T priority Critical patent/ATE47676T1/de
Publication of EP0204290A2 publication Critical patent/EP0204290A2/fr
Publication of EP0204290A3 publication Critical patent/EP0204290A3/de
Publication of EP0204290B1 publication Critical patent/EP0204290B1/fr
Application granted granted Critical
Publication of EP0204290B2 publication Critical patent/EP0204290B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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

  • 3-roll machines or 4-roll machines are used, which form the cut sheet, which has two arched edges of different lengths arranged opposite one another, in one or more passages to form the cone. Since the surface lines of a cone are not parallel to each other, the sheet must not be moved straight through the machines; it must change its direction much more continuously such that the surface lines always run parallel to the roller axes, or, which is synonymous, so that that point of each curved edge which is between the transport rollers always indicates the direction of advance.
  • the conventional roll-sheet metal rounding machines have a brake shoe against which the shorter of the two curved edges rests and from which it is braked, so that the change in direction is ensured.
  • the roll sheet metal rounding machine which is provided with two superposed feed rolls, the lower of which can be pivoted to open the roll gap on one side, and at least one laterally offset with respect to the feed rolls and which can be moved obliquely up and down relative to them , it is now possible to get by without a brake shoe causing the edge upsetting, since it is characterized by a clamping device acting on the shorter of the two curved edges for braking the workpiece feed and a computing unit controlling this clamping device and the roll feed, to which the size or the number of Feed steps as well as those sizes with which the geometry of the cone jacket to be produced can be determined, so that the workpiece to be machined is gradually shifted and ver by the interaction of the feed roller and the clamping device is pivoted that between two feed steps by moving a bending roller upwards, a step-by-step bending of the sheet metal plate, which is then held by the feed rollers then placed in parallel, can always take place perpendicular to the surface line.
  • the rollers serving as feed rollers are displaced in such a way that the roll gap opens to one side in such a way that the rollers clamp the workpiece only at a relatively narrow point on the longer of the two arcuate edges, so that it is not held in the remaining area and can be pivoted relatively easily, it is possible to keep the forces acting on the workpiece edge so small that they do not damage this edge even if it is already designed as a welding edge.
  • the two transport rollers are then returned to their original position, in which they run parallel to each other and hold the workpiece along the entire surface line so that it does not shift during the subsequent bending process.
  • 1 denotes the top roller, 2 the bottom roller, 3 and 4 the two side rollers.
  • the workpiece ie here the finished machined cone jacket, is designated by 5.
  • the bearings of the individual rollers are not shown, and it is known to mount the top roller in such a way that one of its bearings can be folded down so that the finished workpiece can be removed from the machine.
  • the hydraulic cylinders which are used to move the roller bearings and which are shown as if they were attacking the geometric axes of the rollers are only indicated schematically.
  • the hydraulic cylinders of the lower roller are designated with 21 and 22, those of the side rollers with 31 and 32 and 41 respectively.
  • the second cylinder belonging to the side roller 4 is not visible in the drawing. Also not shown in the drawing are the drive elements of the top roller and the bottom roller.
  • a metal plate tailored for the production of a cone serves as the workpiece. If a straight cone is to be made, then the plate points two concentric, arcuate edges and two straight edges connecting these edges, the extensions of which intersect at the center of the arcuate edges. If a slanted cone is to be produced or a cone with a non-circular cross section, the workpiece naturally has a somewhat different shape, known per se.
  • the workpiece 5 is, as usual, inserted into the roll plate rounding machine and held on the entire length of the workpiece between the upper roll 1 and the lower roll 2. Then its free edge is bent by infeed of the side roller 3 serving as a bending roller. Then the side roller 3 is removed again from the workpiece 5 and the lower roller 2 is pivoted such that the gap opens in the direction toward the hydraulic cylinder 21, as can be seen from FIG. 1, where only the longer arcuate edge 5a of the workpiece 5 is clamped between the two rollers 1 and 2. Now the workpiece is advanced a very small distance by turning the rollers.
  • a controllable clamping device (not shown) causes the workpiece to pivot so that the surface lines of the workpiece to be generated are located between the two transport rollers 1 and 2.
  • a measuring roller or an optical scanning device that is to say a reading device for reading surface lines drawn on the workpiece, in order to measure the feed at the shorter of the two arcuate edges.
  • the size of this feed can be compared with the feed caused by the roller rotation on the longer arcuate edge. If the ratio determined in this way does not correspond to the ratio of the lengths of the two arcuate edges entered, the opening angle of the gap between the rollers is changed or the clamping device is actuated in order to obtain the correct relationship between feed and pivoting. Since such calculation values, which issue control commands when the measured values deviate from an entered target value, are known per se, they are not described in more detail here.
  • the transport rollers can be brought back to their starting position, in which they are arranged axially parallel, so that the workpiece is held evenly over its entire length and the infeed of the lateral bending roller 3 causing the curvature of the workpiece does not cause the workpiece to move between the rollers 1 and 2 results.
  • the transport rollers are adjusted again and a transport step is carried out, followed by another bending step.

Claims (2)

1. Machine à cintrer les tôles pour la fabrication d'une enveloppe conique à partir d'un flan prédécoupé en tôle comportant deux rouleaux d'avance (1, 2) disposés l'un au-dessus de l'autre, le rouleau inférieur étant basculable en vue d'une ouverture unilatérale de la fente de laminage, et au moins un rouleau de cintrage (3, 4) décalé latéralement et déplaçable obliquement vers le haut et vers le bas par rapport aux rouleaux d'avance (1, 2), caractérisée par un dispositif de serrage destiné à ralentir l'avance du flan sur le bord le plus court des deux bords en forme d'arcs de cercle dudit flan, et par un calculateur qui commande ledit dispositif de serrage et l'avance des rouleaux, calculateur dans lequel on peut introduire la valeur ou le nombre de pas d'avance ainsi que les grandeurs qui permettent de déterminer la géométrie de l'enveloppe conique à réaliser, afin que le flan à transformer avance et pivote toujours de telle façon que sous l'action conjuguée des rouleaux d'avance (1, 2) et du dispositif de serrage entre deux pas d'avance, par un déplacement vers le haut et l'un des rouleaux de cintrage, un cintrage pas à pas du plan de tôle maintenu fixe entre les rouleaux d'avance (1, 2) alors disposé parallèlement se fasse toujours perpendiculairement à la génératrice de l'enveloppe.
2. Machine selon la revendication 1, caractérisée en ce que le calculateur présente un appareil de lecture pour la lecture des génératrices de l'enveloppe conique tracées sur le flan.
EP86107426A 1985-06-04 1986-06-02 Machine à cintrer les tôles pour fabriquer une enveloppe de cône à partir d une tôle découpée Expired - Lifetime EP0204290B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86107426T ATE47676T1 (de) 1985-06-04 1986-06-02 Verfahren zur herstellung eines konusmantels mit einer walzen-blechrundmaschine und maschine zur durchfuehrung des verfahrens.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH235685 1985-06-04
CH2356/85 1985-06-04

Publications (4)

Publication Number Publication Date
EP0204290A2 EP0204290A2 (fr) 1986-12-10
EP0204290A3 EP0204290A3 (en) 1987-05-27
EP0204290B1 EP0204290B1 (fr) 1989-11-02
EP0204290B2 true EP0204290B2 (fr) 1993-09-15

Family

ID=4231875

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86107426A Expired - Lifetime EP0204290B2 (fr) 1985-06-04 1986-06-02 Machine à cintrer les tôles pour fabriquer une enveloppe de cône à partir d une tôle découpée

Country Status (4)

Country Link
US (1) US4735076A (fr)
EP (1) EP0204290B2 (fr)
AT (1) ATE47676T1 (fr)
DE (1) DE3666673D1 (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE508883C2 (sv) * 1996-05-24 1998-11-16 Ribea Engineering Ab Valsningsförfarande och maskin för framställning av en konisk mantel av plåt, samt ämne härför
WO2008102388A1 (fr) * 2007-02-21 2008-08-28 Boldrini S.P.A. Appareil pour cintrer des plaques avec des rouleaux
KR100931838B1 (ko) * 2007-11-27 2009-12-15 김용우 너클이 있는 편심 콘의 제조공법
CN103492094A (zh) * 2011-04-27 2014-01-01 乌兹特工业设施建设制造有限公司 塔的制造方法
CN103639252B (zh) * 2013-12-17 2016-08-24 泰安华鲁锻压机床有限公司 一种柔性全自动卷板生产线
CN104148456A (zh) * 2014-01-28 2014-11-19 成都陵川常友汽车部件制造有限公司 一种板材制管卷圆机的改进结构
JP6020515B2 (ja) * 2014-05-30 2016-11-02 トヨタ自動車株式会社 サブマフラ外筒の製造方法及び製造装置
CN104289563B (zh) * 2014-09-01 2017-02-08 六安市胜锋暖通工程有限公司 一种简易卷板机
US11219933B2 (en) 2017-11-10 2022-01-11 Promau S.R.L. Apparatus and method for support and controlled advancement of a metal sheet in a bending machine for obtaining cylindrical or truncated cone structures
US11267026B2 (en) 2019-06-17 2022-03-08 Metal Design Systems, Inc. Sheet metal rolling machine for forming complex shapes
CN110961501B (zh) * 2019-12-21 2021-07-27 南陵金鲁机械制造有限公司 一种新型的大小头卷圆机
US11767087B2 (en) * 2021-06-30 2023-09-26 FabX Industries, Inc. Automated method for nose cone manufacturing
CN115283514B (zh) * 2022-04-18 2023-10-10 苏州优缘建材有限公司 一种铝板材弧形折边装置及铝板折边方法
CN116037729B (zh) * 2023-03-07 2023-06-27 广州高谱机械科技有限公司 一种型材弯曲的防变形机构及其组成的弯曲设备
CN116274526B (zh) * 2023-04-04 2023-12-05 江苏龙胜机床制造有限公司 一种锥桶卷板机
CN117340058A (zh) * 2023-12-06 2024-01-05 成都彩堂钣金有限公司 一种弯折深度可调节型的钢板折弯机

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE534391C (de) * 1930-06-18 1931-09-25 Wagner & Co Werkzeugmaschinenf Verfahren zum Biegen konischer Blechschuesse
US2674294A (en) * 1953-02-19 1954-04-06 Broderna Ekbergs Platslagerifa Plate bending machine
US3016082A (en) * 1957-05-10 1962-01-09 Whiteley Read Engineers Ltd Roll bending machines for curving plate members
US3091279A (en) * 1960-05-04 1963-05-28 Lockheed Aircrat Corp Method and apparatus for forming conically shaped articles
US3459020A (en) * 1965-02-01 1969-08-05 Hitachi Shipbuilding Eng Co Plate-bending roll for steel plates and the like
US3505852A (en) * 1968-03-07 1970-04-14 Bend Rite Inc Tube bending machine
CH494604A (de) * 1968-08-10 1970-08-15 Haeusler Christian Rundmaschine zur Herstellung eines Konus aus einem kreisringsegmentförmigen Blech
US4195509A (en) * 1976-06-12 1980-04-01 Hinrichs Gesellschaft Mit Beschrankter Haftung Device for bending ring segment-shaped plate blanks into conically shaped parts
DE2847965C2 (de) * 1978-11-04 1980-12-11 Schaefer Maschbau Wilhelm Vierwalzenbiegemaschine

Also Published As

Publication number Publication date
US4735076A (en) 1988-04-05
ATE47676T1 (de) 1989-11-15
EP0204290A2 (fr) 1986-12-10
EP0204290B1 (fr) 1989-11-02
EP0204290A3 (en) 1987-05-27
DE3666673D1 (en) 1989-12-07

Similar Documents

Publication Publication Date Title
EP0204290B2 (fr) Machine à cintrer les tôles pour fabriquer une enveloppe de cône à partir d une tôle découpée
DE2156551A1 (de) Verfahren und vorrichtung zur herstellung von schuesselartigen koerpern
EP0910486A1 (fr) Procede et dispositif de pliage de profiles a postes modulaires multiples
DE1477088C3 (fr)
EP0275876B1 (fr) Procédé et appareil de dressage d'une pièce
EP1908536B1 (fr) Dispositif pour le cintrage par fluoformage mécanisé de profilés
DE4124715A1 (de) Verfahren und vorrichtung zum biegen einer metallrohrleitung geringen durchmessers
EP2576095B1 (fr) Dispositif pour déformer un élément d'un semi-produit notamment plan
DE2346797A1 (de) Automatisches richtverfahren und richtpresse dafuer mit einer richtstelle
DE2533484A1 (de) Walzmaschine zum walzen von ringfoermigen werkstuecken
WO2000021699A1 (fr) Outil utilise pour produire une partie d'engrenage a denture exterieure
EP0739847A1 (fr) Méthode pour plier en accordéon une feuille en bande
EP1197272A2 (fr) Machine à cintrer à deux rouleaux ainsi que procédé pour cintrer des tôles
DE2818909C2 (de) Richtmaschine für Stangen, Rohre oder dergleichen Werkstücke
DE2528850C3 (de) Pilgerschrittwalzwerk zum Rohrkaltwalzen
DE2456782A1 (de) Verfahren und vorrichtung zum richten von profilstahl
EP0103667B1 (fr) Dispositif de guidage à quatre rouleaux pour laminoirs
DE2825234C2 (de) Vorrichtung zum Herstellen gewölbter Abschlußwände
DE10031652C1 (de) Werkzeug und Verfahren zum Querwalzen von Verzahnungen sowie Verfahren zur Auslegung eines solchen Werkzeuges
DE4425561C2 (de) Verfahren und Vorrichtung zum spitzenlosen Kurzhubhonen von Rollen
DE2503854A1 (de) Verfahren und vorrichtung zum formen grossformatiger wellelemente aus metall mit hoher abmessungsgenauigkeit
DE2218396A1 (de) Vorrichtung zum einziehen von zylindrischen dosenruempfen mit einer naht laengs einer mantellinie, insbesondere mit einer geloeteten falznaht, im rotationsverfahren
DE3435209A1 (de) Verfahren und vorrichtung zum radialen aufweiten von ringen
CH651230A5 (de) Fuenfwalzenbiegemaschine.
CH676210A5 (fr)

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT DE FR GB IT SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT DE FR GB IT SE

17P Request for examination filed

Effective date: 19870713

17Q First examination report despatched

Effective date: 19880804

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT DE FR GB IT SE

REF Corresponds to:

Ref document number: 47676

Country of ref document: AT

Date of ref document: 19891115

Kind code of ref document: T

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
REF Corresponds to:

Ref document number: 3666673

Country of ref document: DE

Date of ref document: 19891207

ET Fr: translation filed
ITF It: translation for a ep patent filed

Owner name: BARZANO' E ZANARDO MILANO S.P.A.

ITF It: translation for a ep patent filed

Owner name: MODIANO & ASSOCIATI S.R.L.

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19900602

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: WILHELM SCHAEFER MASCHINENBAU GMBH & CO.

Effective date: 19900713

ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19920529

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19920720

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19930602

RTI2 Title (correction)

Free format text: A SHEETMETAL ROLLING MACHINE FOR MAKING A CONICAL SHELL FROM A SHEETMETAL BLANK.

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19930603

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19930628

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19930712

Year of fee payment: 8

PUAH Patent maintained in amended form

Free format text: ORIGINAL CODE: 0009272

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT MAINTAINED AS AMENDED

27A Patent maintained in amended form

Effective date: 19930915

AK Designated contracting states

Kind code of ref document: B2

Designated state(s): AT DE FR GB IT SE

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19930602

EN3 Fr: translation not filed ** decision concerning opposition
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19940204

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

EUG Se: european patent has lapsed

Ref document number: 86107426.8

Effective date: 19940111

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19950301

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050602