DE906443C - Auxiliary device for pre-bending the edge strips of flat steel sheets to be bent by means of a three-roll bending machine, in particular in a ring shape - Google Patents

Auxiliary device for pre-bending the edge strips of flat steel sheets to be bent by means of a three-roll bending machine, in particular in a ring shape

Info

Publication number
DE906443C
DE906443C DEE1421D DEE0001421D DE906443C DE 906443 C DE906443 C DE 906443C DE E1421 D DEE1421 D DE E1421D DE E0001421 D DEE0001421 D DE E0001421D DE 906443 C DE906443 C DE 906443C
Authority
DE
Germany
Prior art keywords
bent
bending
auxiliary device
steel sheets
ring shape
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
Application number
DEE1421D
Other languages
German (de)
Inventor
Adolf Mueller
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.)
Eisenwerk Rothe Erde GmbH
Original Assignee
Eisenwerk Rothe Erde 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.)
Filing date
Publication date
Application filed by Eisenwerk Rothe Erde GmbH filed Critical Eisenwerk Rothe Erde GmbH
Priority to DEE1421D priority Critical patent/DE906443C/en
Application granted granted Critical
Publication of DE906443C publication Critical patent/DE906443C/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D5/00Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/14Bending sheet metal along straight lines, e.g. to form simple curves by passing between rollers

Landscapes

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

Description

Es Sind -Hilfsvorrichtungen zum Vorbiegen der Randstreifen von mittels einer Dreiwalzenbiegemaschine, insbesondere in Ringform zu biegenden Flachstahltafeln bekannt, bestehend aus zwei Rollen mit dem gewünschten Biegeradius entsprechender Profilierung ihrer zusammenwirkenden Umflächen, zwischen denen der vorzubiegende Randstreifen der Länge nach durchgezogen wird. Für jeden Vorbiegeradius muß je ein Rollenpaar in Vorrat gehalten und jeweils bei Wechsel des Biegeradius ein-und ausgebaut werden. Diese bekannten Hilfsvorrichtungen sind unwirtschaftlich, da einerseits die Rollen als Profilrollen teuer sind und der jeweilige Rollenwechsel zeitraubend ist.There are auxiliary devices for pre-bending the edge strips by means of a three-roll bending machine, in particular flat steel sheets to be bent in a ring shape known, consisting of two rollers with the desired bending radius corresponding Profiling of their interacting peripheral surfaces, between which the one to be bent Edge strip is pulled through lengthways. For each pre-bending radius there must be one Pair of rollers kept in stock and installed and removed each time the bending radius changes will. These known auxiliary devices are uneconomical because on the one hand the roles as profile roles are expensive and the respective role change time-consuming is.

Die Erfindung schlägt als Hilfsvorrichtung eine einfache Auflage für den vorzubiegenden Randstreifen der zu rundenden Blechtafeln vor, die -nachdem gewünschten Biegeradius- gekrümmt--ist und auf die Unterwalzen aufgelegt wird.The invention proposes a simple support for an auxiliary device pre-bend the edge strips of the metal sheets to be rounded, the -after the desired Bending radius - is curved - and is placed on the lower rollers.

Zur Erläuterung der Erfindung ist in den Abb. z und 2 schematisch eine Dreiwalzenbiegemaschine mit der erfindungsgemäß vorgeschlagenen Auflage in;Stirnansicht und in Draufsicht bei abgenommener Druckwalze dargestellt. Mit z ist das zu biegende Blech bezeichnet. Das Ende des Bleches wird auf die Auflage 2- gelegt, die .eine--Krümmung entsprechend dem gewünschten Ringdurchmesser aufweist. Die Auflage wird in die !Dreiwalzenbiegemaschine eingeführt unter entspzechender Einstellung der Druckwalze 3. Das Blech wird aufgelegt und das eine Ende in die strichpunktierte Krümmung gewalzt. Nachdem auch das andere Ende in gleicher Weise vorgebogen ist, wird der übrige Teil des Bleches ohne die Auflage 2 unter entsprechender Verstellung der Druckwalze 3 durch die Drei -walzen- biegemaschine Erleichterung des Vorbiegens ist an der Auflage 2 ein Anschlag q. zur Begrenzung der Länge des vorzuschiebenden Endteiles vorgesehen. An der Auflage sind fernerhin äsen und.Aufhängebolzen 5 zum Einhängen der Vorrichtung in einen Kran angebracht. Zur Handhabung dient eine Stange 6.To explain the invention is in Figs. Z and 2 schematically a three-roll bending machine with the support proposed according to the invention in; and shown in plan view with the print roller removed. With z it is to be bent Sheet called. The end of the sheet is placed on the support 2-, the .eine - curvature has according to the desired ring diameter. The edition is in the! Three-roll bending machine introduced with the corresponding setting of the pressure roller 3. The sheet is placed on top and one end rolled into the dash-dotted curve. After that the other too End is pre-bent in the same way, the rest of the sheet is without the Edition 2 with corresponding adjustment of the pressure roller 3 by the three-roller- bending machine Pre-bending is facilitated by a stop q on support 2. intended to limit the length of the end part to be pushed forward. At the edition are also äsen und. Aufhängebolzen 5 for hanging the device in a Crane attached. A rod 6 is used for handling.

Die Auflage besteht aus einem starken Blech, dessen Abmessungen und Qualitäten sich nach der Stärke und Festigkeit des zu biegenden Bleches richten. Zur Verstärkung der Auflage, die immerhin recht erhebliche Drücke bei höheren Temperaturen auszuhalten hat, können auf der,Rückseite der Auflage längs _ verlaufende Versteifungsrippen aufgesetzt sein, wobei zweckmäßigerweise in den Auflagewalzen der Dreiwalzenbiegemaschine entsprechende Ringnuten vorgesehen sind.The support consists of a strong sheet metal, its dimensions and Qualities depend on the strength and strength of the sheet to be bent. To strengthen the edition, the at least quite considerable pressures at higher temperatures has to endure, stiffening ribs running lengthways on the back of the support be placed, advantageously in the support rollers of the three-roller bending machine corresponding annular grooves are provided.

Claims (2)

PATENTANSPRÜCHE: z. Hilfsvorrichtung zum Vorbiegen der Randstreifen von mittels einer Dreiwalzenbiegemaschine, insbesondere in Ringform zu biegenden Flachstahltafeln, gekennzeichnet durch eine dem .Biegeradius entsprechend gekrümmte, auf die Unterwalzen aufzulegende Unterlage für den vorzuformenden Randstreifen. PATENT CLAIMS: e.g. Auxiliary device for pre-bending the edge strips to be bent by means of a three-roll bending machine, in particular in a ring shape Flat steel sheets, characterized by a curved shape corresponding to the bending radius, Underlay to be placed on the lower rollers for the edge strip to be preformed. 2. Hilfsvorrichtung nach Anspruch z, dadurch gekennzeichnet, daß .die Auflage in Walzrichtung verlaufende, rückseitige Versteifungsrippen aufweist. Angezogene Druckschriften: Deutsche Patentschrift Nr. 397 27r.2. Auxiliary device according to claim z, characterized in that .the support in Has rear stiffening ribs running in the direction of rolling. Referred publications: German patent specification No. 397 27r.
DEE1421D 1944-10-29 1944-10-29 Auxiliary device for pre-bending the edge strips of flat steel sheets to be bent by means of a three-roll bending machine, in particular in a ring shape Expired DE906443C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEE1421D DE906443C (en) 1944-10-29 1944-10-29 Auxiliary device for pre-bending the edge strips of flat steel sheets to be bent by means of a three-roll bending machine, in particular in a ring shape

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEE1421D DE906443C (en) 1944-10-29 1944-10-29 Auxiliary device for pre-bending the edge strips of flat steel sheets to be bent by means of a three-roll bending machine, in particular in a ring shape

Publications (1)

Publication Number Publication Date
DE906443C true DE906443C (en) 1954-03-15

Family

ID=7065249

Family Applications (1)

Application Number Title Priority Date Filing Date
DEE1421D Expired DE906443C (en) 1944-10-29 1944-10-29 Auxiliary device for pre-bending the edge strips of flat steel sheets to be bent by means of a three-roll bending machine, in particular in a ring shape

Country Status (1)

Country Link
DE (1) DE906443C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2640800A1 (en) * 1975-09-10 1977-03-24 Ultra Centrifuge Nederland Nv METHOD AND DEVICE FOR BENDING FLAT TAPE MATERIALS INTO A CYLINDRICAL SHAPE
EP0049079A1 (en) * 1980-09-19 1982-04-07 Kenneth Michael Hume Method for rolling plate

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE397271C (en) * 1923-09-22 1924-06-19 Froriep G M B H Maschf Device for bending sheet metal ends

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE397271C (en) * 1923-09-22 1924-06-19 Froriep G M B H Maschf Device for bending sheet metal ends

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2640800A1 (en) * 1975-09-10 1977-03-24 Ultra Centrifuge Nederland Nv METHOD AND DEVICE FOR BENDING FLAT TAPE MATERIALS INTO A CYLINDRICAL SHAPE
EP0049079A1 (en) * 1980-09-19 1982-04-07 Kenneth Michael Hume Method for rolling plate

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