DE617062C - Machine for forming pipes - Google Patents

Machine for forming pipes

Info

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
Application number
DEK129489D
Other languages
German (de)
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.)
TH Kieserling and Albrecht GmbH and Co
Original Assignee
TH Kieserling and Albrecht GmbH and Co
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 TH Kieserling and Albrecht GmbH and Co filed Critical TH Kieserling and Albrecht GmbH and Co
Priority to DEK129489D priority Critical patent/DE617062C/en
Application granted granted Critical
Publication of DE617062C publication Critical patent/DE617062C/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
    • B21D5/06Bending 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
    • B21D5/10Bending 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
    • B21D5/12Bending 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

Maschine zum Formen von RohrenMachine for forming pipes

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)

Patentanspruch:Claim: Maschine zum Formen von Rohren, bei der ans einem Blechband durch hintereinander <e9inen .Teil des Rohrumfanges bearbeitende, außen und innen wirkende Kaliberrollen, von denen nur die äußeren angetrieben wierdeo, ein Schlitzrohr gebildet wird, dadurch, gekennzeichnet, daß .die zwischen dem erslten und letzten Rollensatz liegendem "Wialzrollen derart in verschiedenen Ebenen angeordnet sind, daß sie nacheinander nur den durch sie erfaßten Teal des Blechbandes gleich in die sFcmfi eiaes 4iem fertigen Rohre entsprechenden Krieisringstüdbes umbiegen.Machine for the forming of pipes, with the one sheet metal strip through one behind the other <e9a part of the pipe circumference Machining, outside and inside acting caliber rolls, of which only the outer ones are driven wierdeo, a slotted tube is, characterized in that .the between the first and the last Roll set lying "Wialzwalzen so in different levels are arranged so that they are only the same in the teal of the sheet metal strip covered by them one after the other the sFcmfi eiaes 4iem finished pipes corresponding Bend Krieisringstüdbes. Hierzu 1 Blatt Zeichnungen1 sheet of drawings
DEK129489D 1933-03-18 1933-03-18 Machine for forming pipes Expired DE617062C (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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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