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 shapeInfo
- 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
Links
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
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)
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)
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)
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 |
-
1944
- 1944-10-29 DE DEE1421D patent/DE906443C/en not_active Expired
Patent Citations (1)
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)
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 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1379265A (en) | Method of and a strip mill for reducing strip | |
DE906443C (en) | 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 | |
DE881334C (en) | Method and device for the production of profiles of uniform wall thickness, in particular gutters, from metal strips | |
DE279903C (en) | ||
DE854872C (en) | Rolling mill with two or more rolls | |
DE428482C (en) | Sheet metal bending machine with support of the lower pressure roller between and on the bearings | |
DE534391C (en) | Method for bending conical sheet metal sections | |
DE1452153A1 (en) | Rolling mill for the production of flat products, e.g. of sheets and strips | |
DE549779C (en) | Three-roll bending device for pipes, rods or the like. | |
DE741884C (en) | Rolling mill for cold rolling completely flat metal strips and strips | |
DE397271C (en) | Device for bending sheet metal ends | |
AT151616B (en) | Method and device for the production of pipes and profiles of all kinds by cold means by bending strips and sheet metal strips. | |
DE716228C (en) | Device for bending the longitudinal edges of sheet metal shots for cylindrical bodies | |
DE1251260B (en) | Back-up roll arrangement for absorbing the rolling pressure of the work rolls of a sheet metal rolling mill | |
DE378451C (en) | Process for the production of roller baskets | |
DE643497C (en) | Process for the production of bar and profile iron, in particular of concrete iron bars | |
DE1752959A1 (en) | Method and device for avoiding flatness deviations on cold-rolled metal strip | |
DE10221C (en) | Device for rolling grooved rails | |
DE307856C (en) | How to roll out I and U irons in universal rolling mills by turning the flanges | |
DE497089C (en) | Cutting shoe made of flat iron, the bent lower end of which offers the stamp a flexible abutment against the side pressure | |
DE469821C (en) | Rolling device for rolling stock with undercut profiles | |
DE894181C (en) | Bending roller for bar bender | |
DE499100C (en) | Roller wedge for machine parts that can be moved like a slide | |
DE607011C (en) | Process for producing paper of a certain thickness across its entire width in the paper machine | |
AT142936B (en) | Device for shaping flat, pre-rolled dough pieces into rolls or sticks (Berlin sticks). |