DE2004444B2 - Device for the production of thin-walled pipes - Google Patents

Device for the production of thin-walled pipes

Info

Publication number
DE2004444B2
DE2004444B2 DE19702004444 DE2004444A DE2004444B2 DE 2004444 B2 DE2004444 B2 DE 2004444B2 DE 19702004444 DE19702004444 DE 19702004444 DE 2004444 A DE2004444 A DE 2004444A DE 2004444 B2 DE2004444 B2 DE 2004444B2
Authority
DE
Germany
Prior art keywords
mandrel
thin
production
driven
walled pipes
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.)
Granted
Application number
DE19702004444
Other languages
German (de)
Other versions
DE2004444A1 (en
DE2004444C3 (en
Inventor
Guenter 4000 Duesseldorf Schulz
Erhard Dipl.-Ing. 4000 Duesseldorf Thon
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.)
Vodafone GmbH
Original Assignee
Mannesmannroehren Werke 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
Application filed by Mannesmannroehren Werke AG filed Critical Mannesmannroehren Werke AG
Priority to DE19702004444 priority Critical patent/DE2004444C3/en
Publication of DE2004444A1 publication Critical patent/DE2004444A1/en
Publication of DE2004444B2 publication Critical patent/DE2004444B2/en
Application granted granted Critical
Publication of DE2004444C3 publication Critical patent/DE2004444C3/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B23/00—Tube-rolling not restricted to methods provided for in only one of groups B21B17/00, B21B19/00, B21B21/00, e.g. combined processes planetary tube rolling, auxiliary arrangements, e.g. lubricating, special tube blanks, continuous casting combined with tube rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
    • B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes
    • B21C1/22—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes specially adapted for making tubular articles
    • B21C1/24—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes specially adapted for making tubular articles by means of mandrels
    • B21C1/26—Push-bench drawing

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Description

2020th

Die Erfindung betrifft eine Vorrichtung zur Herstellung von Dünnwandrohren gemäß dem Oberbegriff des Patentanspruchs. Eine derartige Vorrichtung ist aus der DE-PS 6 35 015 bekannt Die Walzen bilden bei dieser Vorrichtung ein nahezu geschlossenes Kaliber. Nachteilig dabei ist, daß einerseits bei wechselnden Abmessungen jeweils neue Walzensätze in das Walzgerüst eingesetzt werden müssen und zum anderen kann aufgrund der Art der Vorrichtung nicht mit aufeinander- J0 folgenden Rohren gearbeitet werden. Zum vorbekannten Stand der Technik ist noch auf die DE-AS 10 17 576 bzw. 11 29 440 und die US 30 30 835 zu verweisen, wonach allerdings in anderem Zusammenhang, das kontinuierliche Rohrwalzen über einen Dorn der r> Fachwelt grundsätzlich schon bekannt istThe invention relates to a device for producing thin-walled pipes according to the preamble of the patent claim. Such a device is known from DE-PS 6 35 015. In this device, the rollers form an almost closed caliber. This has the disadvantage that one hand must be used in varying dimensions each new sets of rolls in the roll stand and on the other hand the device can not use successive J0 following tubes to work because of the way. For prior art, is still to refer to DE-AS 10 17 576 and 11 29 440 and US 30 30 835, which is already known, however, in another context, the continuous tube rolling over a mandrel of r> experts generally

Aufgabe der Erfindung ist es ausgehend von der eingangs genannten DE-PS 6 35 015 daher, die vorbekannte Vorrichtung so auszugestalten, daß damit nahezu kontinuierlich Dünnwandrohre mit ggf. wech- w selnden Durchmessern hergestellt werden können, ohne daß jeweils ein neues Werkzeug eingesetzt werden muß.The object of the invention is, starting from the aforementioned DE-PS 6 35 015 therefore to design the known device so that so selnden diameters can be made nearly continuous thin-wall pipes with optionally alternating w without respectively a new tool has to be used .

Gelöst wird diese Aufgabe erfindungsgemäß durch die im Kennzeichen des Anspruchs angegebenen Merkmale. <r> This object is achieved according to the invention by the features specified in the characterizing part of the claim. < r >

Die auf den Dorn aufgeschobene Rohrluppe haftet am Dornkopf vorzugsweise mit radialer Vorspannung. Beim Vorschieben der Luppe wird durch Abwälzen der nicht angetriebenen Druckrollen die Rohrwand auf dem Dornstangenkopf reduziert, wobei das fertige Dünnwandrohr frei aus dem Gerüst austritt und von einem Rollgang geführt wird.The tubular blank pushed onto the mandrel adheres to the mandrel head, preferably with radial prestress. When the hollow shell is pushed forward, the non-driven pressure rollers roll over the pipe wall on the Reduced mandrel head, with the finished thin-walled tube emerging freely from the framework and from a Roller table is guided.

Noch während des Auswalzens der Luppe wird durch Offnen der ersten Dornhalterung ein weiteres Roh«- auf den Dorn aufgeschoben. Nach Schließen der ersten und Öffnen der zweiten Dornstangsnhalterung wird die nächste Rohrluppe bis dicht an das in Bearbeitung befindliche Rohr herangeschoben und ermöglicht so eine nahezu kontinuierliche Fertigung.While the shell is being rolled out, a further blank is opened by opening the first mandrel holder the thorn pushed open. After closing the first and opening the second mandrel holder, the The next pipe bobbin is pushed right up to the pipe being processed, thus enabling an almost continuous production.

In der beigefügten Zeichnung ist die Vorrichtung schematisch dargestellt Es zeigtIn the accompanying drawing the device is shown schematically. It shows

Fig.la einen Längsschnitt durch die Gesamtanlage (Einführungsseite),Fig.la is a longitudinal section through the entire system (Introductory page),

Fig. Ib einen Längsschnitt durch die Gesamtanlage (Walzseite), Fig.2 eine Einzelheit an der Dornstangenhalterung in vergrößertem Maßstab,Fig. Ib a longitudinal section through the entire system (Rolling side), Fig. 2 a detail of the mandrel bar holder on a larger scale,

Fig.3 einen Schnitt durch das Gerüst in vergrößertem Maßstab.3 shows a section through the framework on an enlarged scale Scale.

Wie Fig.la und Ib zeigen wird die von einer Rohrauflage kommende Rohrluppe (1) von einem höhenverstellbaren Einlaufrollgang (2) bei geöffneter Dornstangenhalterung I über den Dorn (3) bis zur Dornstangenhalterung II geschoben. Nach Schließen der Dornstangenhalterung I wird die Dornstangenhalterung II geöffnet und das Rohr durch eine Vorschubeinrichtung (4), die ebenfalls wie die Rohrluppe (1), der Dorn (3) und die Dornstangenhalterungen I und II um die Rohrachse bewegt wird, durch das Gerüst (5) gedrückt In dem Gerüst (5) wird die auf dem Dornkopf (3') radial vorgespannte Rohrluppe von den Druckrollen (6) der mit Vorschubgeschwindigkeit angetriebenen Druckrollenhalter (7) erfaßt und in ihrer Wandstärke reduziert Das ausgewalzte Rohr (9) wird von einem Auslaufrollgang (8) geführt Gleichzeitig hat sich die Dornstangenhalterung I wieder geöffnet und ein weiteres Rohr kann auf den Dorn aufgeschoben werden, ohne daß die Bearbeitung des ersten Rohres unterbrochen wird. Das Offnen und Schließen erfolgt über mehrere Spannzylinder (10), die mit gleichem Abstand über den Dornumfang angeordnet sind, damit sich eine geschlossene Laufbahn für die rotierenden Spannbakken ergibtAs Fig.la and Ib show, this is done by a Pipe support coming pipe blank (1) from a height-adjustable infeed roller table (2) when it is open Mandrel bar holder I pushed over the mandrel (3) to the mandrel bar holder II. After closing the mandrel bar holder I, the mandrel bar holder II is opened and the pipe is opened by a feed device (4), which also like the tube blank (1), the mandrel (3) and the mandrel rod holders I and II around the pipe axis is moved, pushed through the frame (5) In the frame (5) the on the mandrel head (3 ') radially pretensioned tube blank from the pressure rollers (6) driven at the feed speed Pressure roller holder (7) detected and reduced in their wall thickness. The rolled tube (9) is from a Outfeed roller table (8) guided At the same time, the mandrel bar holder I has opened again and closed Another tube can be pushed onto the mandrel without interrupting the machining of the first tube will. The opening and closing takes place via several clamping cylinders (10), which are equidistant are arranged over the circumference of the mandrel so that there is a closed track for the rotating clamping jaws results

Zur Anpassung an unterschiedliche Rohrluppen-Durchmesser sind die Druckrollenhalter quer zur Walzrichtung verstellbar; damit wird die Kalibergröße verändert.The pressure roller holders are transverse to the Adjustable rolling direction; this changes the size of the caliber.

Hierzu 4 Blatt ZeichnungenFor this purpose 4 sheets of drawings

Claims (1)

Patentanspruch:Claim: Vorrichtung zur Herstellung von Dünnwandrohren durch Walzen Ober einen Dorn mit mechanisch um die Dornachse drehbaren Dornhalterungen und einer mit gleicher Umdrehungsgeschwindigkeit umlaufenden Vorschubeinrichtung, sowie einem ortsfesten Walzgerüst mit um den Rohrumfang verteilter., nicht angetriebenen Druckrüllen, dadurch gekennzeichnet, daß zwei oder mehr angetriebene, scheibenförmige, quer zur Walzrichtung verstellbare Druckrollenhalter (7) für die nicht angetriebenen Druckrollen (6) vorgesehen sind, wobei die Drehachsen der Druckrollenhalter (7) 1S quer zur Vorschubrichtung der Rohre angeordnet sind.Device for the production of thin-walled pipes by rolling over a mandrel with mandrel holders mechanically rotatable around the mandrel axis and a feed device rotating at the same speed of rotation, as well as a stationary roll stand with non-driven pressure grooves distributed around the circumference of the pipe, characterized in that two or more driven, disk-shaped , pressure roller holders (7) adjustable transversely to the rolling direction are provided for the non-driven pressure rollers (6), the axes of rotation of the pressure roller holders (7) 1S being arranged transversely to the feed direction of the pipes.
DE19702004444 1970-01-31 1970-01-31 Device for the production of thin-walled pipes Expired DE2004444C3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19702004444 DE2004444C3 (en) 1970-01-31 1970-01-31 Device for the production of thin-walled pipes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702004444 DE2004444C3 (en) 1970-01-31 1970-01-31 Device for the production of thin-walled pipes

Publications (3)

Publication Number Publication Date
DE2004444A1 DE2004444A1 (en) 1971-08-05
DE2004444B2 true DE2004444B2 (en) 1979-08-09
DE2004444C3 DE2004444C3 (en) 1980-05-14

Family

ID=5761086

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19702004444 Expired DE2004444C3 (en) 1970-01-31 1970-01-31 Device for the production of thin-walled pipes

Country Status (1)

Country Link
DE (1) DE2004444C3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4313648C2 (en) * 1993-04-21 1997-10-09 Mannesmann Ag Method and device for producing seamless tubes by pressure rolling
DE102007041149B3 (en) 2007-08-30 2009-04-02 Technische Universität Dresden Method and device for cross rolling stepped hollow shafts or cylindrical hollow parts from a tube

Also Published As

Publication number Publication date
DE2004444A1 (en) 1971-08-05
DE2004444C3 (en) 1980-05-14

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)
EHJ Ceased/non-payment of the annual fee