DE617062C - Machine for forming pipes - Google Patents
Machine for forming pipesInfo
- Publication number
- DE617062C DE617062C DEK129489D DEK0129489D DE617062C DE 617062 C DE617062 C DE 617062C DE K129489 D DEK129489 D DE K129489D DE K0129489 D DEK0129489 D DE K0129489D DE 617062 C DE617062 C DE 617062C
- Authority
- DE
- Germany
- Prior art keywords
- rollers
- machine
- sheet metal
- pipes
- metal strip
- 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
- B21D5/06—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles
- B21D5/10—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles for making tubes
- B21D5/12—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles for making tubes making use of forming-rollers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Description
DEUTSCHES REICHGERMAN EMPIRE
AUSGEGEBEN AM 13. AUGUST 1935ISSUED ON AUGUST 13, 1935
REICHSPATENTAMTREICH PATENT OFFICE
PATENTSCHRIFTPATENT LETTERING
■··■ KLASSE 7b GRUPPE■ ·· ■ CLASS 7b GROUP
TT K 129489 φ bK 129489 φ b
Patentiert im Deutschen Reiche vom 18. März 1933 abPatented in the German Empire on March 18, 1933
Die Erfindung betrifft eine Maschine zumThe invention relates to a machine for
Formen von Rohren aus Bandeisen oder Blechstreifen, bei welcher das Band unter Einwirkung einer Anzahl von Roüensätzen zum geschlossenen Rohr geformt wird.Forming pipes from steel strips or sheet metal strips, in which the band is underneath Action of a number of tube sets is formed into the closed tube.
Beim Biegen von Rohren aus Blechbändern hat man schon die verschiedensten Verfahren und diesen Verfahren entsprechend angepaßte Maschinen zur Anwendung gebracht. Man hat einen Bandeisenstreifen mit Biegebacken und einen Dorn herumgepreßt; man hat vielfach Walzen benutzt. Die Maschinen, die mit Dom arbeiten, lassen nur die Herstellung von Rohren kleineren Durchmessers zu, wobei vielfach noch die notwendige genaue Lage der Schweißnaht kaum erreichbar ist. Arbeitet man ohne Dorn, so kann man Rohre beliebigen Durchmessers herstellen, wobei man die Genauigkeit bisher dadurch zu erreichen versuchte, daß man eine Anzahl Kaliberrollen hintereinander zur Einwirkung brachte, die im Verein mit innenliegenden Gegenrollen allmählich die Kreisform des Rohres, ausi dem 'erst flachen, dann im Querschnitt muldenförmigem Blechstreifen erzeugte. Immer bot es aber Schwierigkeiten, Rohre, insbesondere größeren Durchmessers und geringerer Wandstärke, herzustellen und die genau richtige Lage der Blechbänder für die Verschiwieißung einzuhalten. Außerdem zeigte sich bei den bisherigen Maschinen der Nachteil einer außerordentlich großen Baulänge, da entweder zahlreiche Rollensätze oder Roüensätze mit Walzen großen Durchmessers1 'erforderlich waren.When bending pipes from sheet metal strips, a wide variety of processes and machines adapted to these processes have already been used. A strip of iron with bending jaws and a mandrel were pressed around; rollers have been used many times. The machines that work with a dome only allow the production of pipes with a smaller diameter, and in many cases the exact position of the weld seam is hardly achievable. If you work without a mandrel, you can produce pipes of any diameter, although up to now the aim has been to achieve accuracy by applying a number of caliber rollers one after the other, which, in conjunction with internal counter rollers, gradually take on the circular shape of the pipe, from which it is first flat , then produced trough-shaped sheet metal strips in cross-section. However, it has always been difficult to manufacture pipes, especially larger diameters and thinner walls, and to maintain the precisely correct position of the sheet metal strips for welding. In addition, the previous machines had the disadvantage of an extremely long overall length, since either numerous sets of rollers or sets of rollers with large-diameter rollers 1 'were required.
Die Erfindung geht von dem Gedanken aus, daß .man die Baulähge der Maschine bei Erhöhung der Genauigkeit der Arbeit wesentlich vermindern) kann, wenn man jeweils nur einzelne .Teile des Blechstreifens zwischen den äußeren Kaliberwalzen und den inneren Gegenrollen bearbeitet und diese Tedle sofort in die fertige Kreisform biegt. Demgemäß sind auf der neuen Maschine die zwischen dem 'ersten und letzten Rollensatz +5 liegenden Wialzrolleini derart in verschiedenen Ebenen angeordnet, daß sie nacheinander nur den durch sie erfaßten .Teil des Blechbandes gleich in die Form 'eines dem fertigen Rohre 'entsprechenden) Kreisringsttückes umbiegen. Infolge der geringen Größe der Walzrollen können die RoUensätze .eng aneinander gerückt werden; außerdem kommt, man mit einer sehr geringen Anzahl von Rollensätzen aus. Die Baulänge der Maschine is't entsprechend klein, und die Rohre werden auch bei dünnem Blech genau rund, während die Stoßkanten eine gerade, geschlossene Naht bilden, wie sie zum Schweißen unbedingt erforderlich ist.The invention is based on the idea that .man the overall length of the machine when increasing the accuracy of the work significantly), if one in each case only individual parts of the sheet metal strip between the outer caliber rollers and the machined inner counter rollers and this tedle immediately bends into the finished circular shape. Accordingly, on the new machine, those between the first and last roller set are +5 lying Wialzrolleini so arranged in different levels that they only follow one another the .part of the sheet metal band captured by them into the shape of one of the finished tubes 'Bend the corresponding) circular ring piece. Due to the small size of the rolling rollers the RoUensätze can be moved close together; besides, you come with a very small number of sets of roles. The overall length of the machine is not appropriate small, and the pipes are exactly round even with thin sheet metal, while the abutting edges Form a straight, closed seam, which is absolutely necessary for welding is.
In der Zeichnung ist das neue Verfahren beispielswieisie veranschaulicht. Gemäß Abb. 1 erhält das Band durch die Rollen 1 und 2 seine erste Vorbiegung. Abb. 2 bis 4 zeigen das allmähliche Weiterbiegen des Bandes. Die unteren Rollen 3, 4 und 5 werden ange-In the drawing, the new method is illustrated by way of example. According to Fig. 1 the tape receives its first pre-bend from rollers 1 and 2. Fig. 2 to 4 show the gradual further bending of the tape. The lower rollers 3, 4 and 5 are
trieben, wogegen die oberen Rollen 6, J
und 8 lose mitlaufen. Letiztere sind in Haltern
9, io und ii, die fest mit der Maschine
verbunden sind, drehbar gelagert,
Das bisher rinnenartiig geformte, ofiiene Profil wird in dem Rollensatz der Abb. 5
weitergebogen und in den Rollen der Abb. 6 und 7 fast ganz geschlossen·. Die angetriebenen Rollen 12, 1-3 und 14 umschließen das
Rohr an einem großen .Teil seines Umfanges,
und die Rollen 15 und i& bilden die
inneren Gegens'tützen. Diese werden von einem, mit dem Maschinenkörper fest yerbundenen
Halter 17 getragen, laufen lose mit und berühren sich in>
der Matte, sum ihre Zapfen
von Seitendruek zu entlasten. In den Rollensätzen der Abb. 6 und 7 wierden die
Stoßkanten nacheinander beigiebogen, die Rollen
18, 19 und 20, 21 werden angetrieben, die inneren Rollen 22 und 23 laufen lose.drifted, while the upper rollers 6, J and 8 run loosely. The last ones are rotatably mounted in holders 9, io and ii, which are firmly connected to the machine,
The previously channel-like, open profile is bent further in the set of rollers in Fig. 5 and almost completely closed in the rollers in Figs. 6 and 7. The driven rollers 12, 1-3 and 14 enclose the pipe on a large part of its circumference, and the rollers 15 and i & form the inner counter-supports. These are carried by a holder 17 that is firmly connected to the machine body, run loosely and touch each other in the mat, in order to relieve their pins from side pressure. In the roller sets of Figs. 6 and 7, the abutting edges are bent in one after the other, the rollers 18, 19 and 20, 21 are driven, the inner rollers 22 and 23 run loosely.
In AbTj. 8 ist der letzte Rollensatz dargestellt, der aus den vier den ganzen Umfang des Rohres umfassenden angetriebenen Rollen 24, 25, 26, 27 besteht. Das Rohr wird hier vollständig geschlossen und erhält durch das Einwirken der Rollen auf den ganzen Umfang seine genaue runde Form.In AbTj. 8 the last set of rollers is shown, which consists of the four driven rollers 24, 25, 26, 27 encompassing the entire circumference of the pipe. The pipe will here completely closed and preserved by the action of the roles on the whole Circumference its exact round shape.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEK129489D DE617062C (en) | 1933-03-18 | 1933-03-18 | Machine for forming pipes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEK129489D DE617062C (en) | 1933-03-18 | 1933-03-18 | Machine for forming pipes |
Publications (1)
Publication Number | Publication Date |
---|---|
DE617062C true DE617062C (en) | 1935-08-13 |
Family
ID=7246870
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEK129489D Expired DE617062C (en) | 1933-03-18 | 1933-03-18 | Machine for forming pipes |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE617062C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3159199A (en) * | 1962-07-30 | 1964-12-01 | Abbey Etna Machine Co | Cluster roll assembly for tube mills |
WO1995029020A1 (en) * | 1994-04-20 | 1995-11-02 | Knudson Gary Art | Half-round gutter making apparatus |
-
1933
- 1933-03-18 DE DEK129489D patent/DE617062C/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3159199A (en) * | 1962-07-30 | 1964-12-01 | Abbey Etna Machine Co | Cluster roll assembly for tube mills |
WO1995029020A1 (en) * | 1994-04-20 | 1995-11-02 | Knudson Gary Art | Half-round gutter making apparatus |
US5551272A (en) * | 1994-04-20 | 1996-09-03 | Knudson; Gary A. | Half-round gutter making apparatus |
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