DE276537C - - Google Patents

Info

Publication number
DE276537C
DE276537C DENDAT276537D DE276537DA DE276537C DE 276537 C DE276537 C DE 276537C DE NDAT276537 D DENDAT276537 D DE NDAT276537D DE 276537D A DE276537D A DE 276537DA DE 276537 C DE276537 C DE 276537C
Authority
DE
Germany
Prior art keywords
die
elbows
piece
elbow
angle piece
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.)
Active
Application number
DENDAT276537D
Other languages
German (de)
Publication of DE276537C publication Critical patent/DE276537C/de
Active 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
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/28—Making tube fittings for connecting pipes, e.g. U-pieces
    • B21C37/29—Making branched pieces, e.g. T-pieces
    • 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
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/28—Making tube fittings for connecting pipes, e.g. U-pieces

Landscapes

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

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

PATENTSCHRIFTPATENT LETTERING

- M 276537 KLASSE 7b. GRUPPE- M 276537 CLASS 7b. GROUP

von geraden Rohrstücken.of straight pipe sections.

Patentiert im Deutschen Reiche vom 6. August 1911 ab.Patented in the German Empire on August 6, 1911.

Die Erfindung betrifft eine Vorrichtung zur Herstellung von rohrförmigen Hohlkörpern von Knie- oder Winkelstücken durch Biegen von geraden Rohrstücken.The invention relates to a device for producing tubular hollow bodies of elbows or elbows by bending straight pieces of pipe.

Bisher wurden Knie- oder Winkelstücke zur Verbindung von Rohren zumeist aus Guß hergestellt. Man hat allerdings auch schon vorgeschlagen, derartige Rohrverbindungsstücke aus Schmiedeeisen zu schweißen; doch war es ίο bisher schwer möglich, derartige Winkelstücke vollkommen dicht und nahtlos herzustellen, so daß sie hohen Druck aushalten können. Der vorliegende Erfindungsgegenstand soll die Herstellung derartiger Verbindungsstücke ermöglichen. So far, knee or elbow pieces for connecting pipes have mostly been made of cast iron. However, it has also been proposed to weld such pipe connectors made of wrought iron; but it was ίο Up to now it has been difficult to produce such angle pieces completely tightly and seamlessly, so that they can withstand high pressure. The present subject matter of the invention is intended to Allow production of such connectors.

Fig. ι zeigt ein entsprechend vorgearbeitetes Werkstück im Längsschnitt,Fig. Ι shows a correspondingly pre-machined workpiece in longitudinal section,

Fig. 2 einen Schnitt durch die Vorrichtung zur Herstellung eines rechtwinkligen Knieao Stückes und2 shows a section through the device for producing a right-angled knee ao Piece and

Fig. 3 einen Schnitt durch eine Vorrichtung zur Herstellung eines Winkelstückes von 135 °.3 shows a section through a device for producing an angle piece of 135 °.

Ein dem herzustellenden Winkelstück entsprechend an seinen Enden abgeschnittenes Rohrstück α (Fig. 1) wird erwärmt, auf den mit einem Absatz b versehenen und bei c entsprechend abgerundeten Dorn d gesteckt und alsdann mittels dieses Domes durch die dem zu bildenden Winkelstück entsprechend ausgesparte Matrize e getrieben. Bei dieser Pressung erhält das Rohrstück α bei f die äußere Krümmung, während die innere Krümmung bei g durch einen mit einem stiefeiförmig gebogenen Ende versehenen zweiten Dorn h erfolgt, der gleichfalls einen Absatz i besitzt und am anderen Ende in die Matrize reicht. Über diesen zweiten Dorn h wird das freie Rohrende geschoben. A pipe section α (Fig. 1) cut at its ends according to the elbow to be produced is heated, placed on the mandrel d provided with a shoulder b and correspondingly rounded at c and then driven by means of this dome through the die e corresponding to the elbow to be formed . With this pressing, the pipe section α is given the outer curvature at f , while the inner curvature at g is achieved by a second mandrel h , which is provided with a stepped end and which also has a shoulder i and extends into the die at the other end. The free end of the pipe is pushed over this second mandrel h.

In entsprechender Weise erfolgt das Biegen eines Rohrstückes in die aus Fig. 3 ersiehtliehe Form. Hierbei kann durch Anwendung eines Domes d mit einem Ansatz k- und einer entsprechend gestalteten Matrize das Winkelstück eine muffenartige Erweiterung erhalten.A pipe section is bent into the shape shown in FIG. 3 in a corresponding manner. Here, by using a dome d with an attachment k and a correspondingly shaped die, the angle piece can be given a sleeve-like extension.

Das Einführen und Herausziehen des Dornes h aus dem Winkelstück, wird durch die Verjüngung m ermöglicht. The taper m enables the mandrel h to be inserted and withdrawn from the elbow.

Claims (2)

Patent-An Sprüche:Patent-to sayings: i. Vorrichtung zur Herstellung von Knie- oder Winkelstücken durch Biegen von geraden Rohrstücken, dadurch gekennzeichnet, daß ein mit abgeschrägten Stirnenden versehenes nahtloses Rohrstück (α) im warmen Zustande mittels eines abgesetzten, an seinem Ende der äußeren Winkelstückkrümmung (f) entsprechendi. Device for the production of elbows or elbows by bending straight pipe pieces, characterized in that a seamless pipe piece (α) provided with beveled front ends in the warm state by means of a stepped piece corresponding to the outer elbow curve (f) at its end abgerundeten Domes (d) durch eine Matrize (e) von der Gestalt des fertigen Winkelstückes über einen in das andere Ende der Matrize reichenden, der inneren Winkelstückkrümmung (g) entsprechend abgerundeten zweiten Dorn (h) getrieben wird.The rounded dome (d) is driven through a die (e) of the shape of the finished angle piece over a second spike (h) which extends into the other end of the die and corresponds to the inner angle piece curvature (g). 2. Vorrichtung nach Anspruch i, dadurch gekennzeichnet, daß zwecks gleichzeitiger Herstellung einer muffenartigen Erweiterung der Winkelstückenden die Dorne mit einer Verstärkung (k) versehen sind.2. Apparatus according to claim i, characterized in that the mandrels are provided with a reinforcement (k) for the purpose of simultaneously producing a sleeve-like extension of the elbow ends. Hierzu ι Blatt Zeichnungen.For this purpose ι sheet of drawings.
DENDAT276537D Active DE276537C (en)

Publications (1)

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DE276537C true DE276537C (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2466877A (en) * 1943-11-08 1949-04-12 W C Norris Method of and means for bending pipe
US2516372A (en) * 1945-09-17 1950-07-25 W C Norris Manufacturer Inc Method of and means for forming pipe bends
DE917302C (en) * 1951-12-23 1954-08-30 Hermann Huehn Process for the production of threaded pipe sockets with internal thread for connecting the drain cocks to washing kettles and the like. like
US2740455A (en) * 1952-12-08 1956-04-03 Northern Indiana Brass Co Apparatus for making short radius elbows
US2831523A (en) * 1955-05-20 1958-04-22 Nibco Method and means for making elbows by forcing tubular stock through a die
US2927368A (en) * 1956-05-14 1960-03-08 Bent Tube Inc Method of forming a tubular article having an abrupt change in direction

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2466877A (en) * 1943-11-08 1949-04-12 W C Norris Method of and means for bending pipe
US2516372A (en) * 1945-09-17 1950-07-25 W C Norris Manufacturer Inc Method of and means for forming pipe bends
DE917302C (en) * 1951-12-23 1954-08-30 Hermann Huehn Process for the production of threaded pipe sockets with internal thread for connecting the drain cocks to washing kettles and the like. like
US2740455A (en) * 1952-12-08 1956-04-03 Northern Indiana Brass Co Apparatus for making short radius elbows
US2831523A (en) * 1955-05-20 1958-04-22 Nibco Method and means for making elbows by forcing tubular stock through a die
US2927368A (en) * 1956-05-14 1960-03-08 Bent Tube Inc Method of forming a tubular article having an abrupt change in direction

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