DE537757C - Formation of Ziehangeln on pipes u. Like. By folding - Google Patents

Formation of Ziehangeln on pipes u. Like. By folding

Info

Publication number
DE537757C
DE537757C DEI34671D DEI0034671D DE537757C DE 537757 C DE537757 C DE 537757C DE I34671 D DEI34671 D DE I34671D DE I0034671 D DEI0034671 D DE I0034671D DE 537757 C DE537757 C DE 537757C
Authority
DE
Germany
Prior art keywords
folding
pipes
formation
pipe
ziehangeln
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
DEI34671D
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.)
JOHANNES INGRISCH DIPL ING
Original Assignee
JOHANNES INGRISCH DIPL ING
Publication date
Priority to DEI34671D priority Critical patent/DE537757C/en
Application granted granted Critical
Publication of DE537757C publication Critical patent/DE537757C/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
    • B21C5/00—Pointing; Push-pointing
    • B21C5/003—Pointing; Push-pointing of hollow material, e.g. tube
    • 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
    • B21C5/00—Pointing; Push-pointing

Description

Bildung von Ziehangeln an Rohren u. dgl. durch Falten Bei der Erzeugung von Röhren u. dgl. aus Flußeisen, Stahllegierungen und anderen Metallen hat das Ziehverfahren im warmen und kalten Zustand eine wesentliche Bedeutung Zur Vorbereitung des Ziehens muß das Rohr mit einer Ziehangel versehen; d. h. ein Rohrende so eingeschnürt werden, daß es durch den Ziehring hindurchgeschoben und auf der anderen Ziehringseite von der Zange erfaßt werden kann.Formation of drawstrings on pipes and the like by folding during production of pipes and the like made of fluoro iron, steel alloys and other metals Drawing process in the warm and cold state is essential to preparation before pulling, the pipe must be provided with a pulling lever; d. H. one pipe end so constricted that it is pushed through the drawing ring and on the other side of the drawing ring can be grasped by the pliers.

Die Herstellung der Ziehangeln erfolgt nach Anwärmen des Rohrendes mit Hämmern, Pressen oder anderen geeigneten Einrichtungen in der Weise, daß das Rohr unter Drehung zwischen den Arbeitsgesenken verjüngt wird. Bei der Ziehangel kommt es darauf an, daß sie zentrisch zur Rohrachse sitzt und ungeschwächt bleibt, denn sie muß die ganze eingeleitete Ziehkraft aufnehmen. Dieses kann in der bekannten Weise, da von der Geschicklichkeit des betreffenden Arbeiters abhängig, nicht in der erforderlichen Gleichmäßigkeit erreicht werden. Das Abreißen auf diese Art hergestellter Ziehangeln ist daher eine recht häufige, die laufende Erzeugung störende Erscheinung.The drawing rods are produced after the end of the pipe has been heated with hammers, presses or other suitable devices in such a way that the Tube is tapered with rotation between the working dies. At the Ziehangel what matters is that it is centered on the pipe axis and remains undiminished, because it has to absorb all the pulling force introduced. This can be done in the known Wise, as it depends on the skill of the worker concerned, not in the required uniformity can be achieved. Demolition made in this way Tugging is therefore a very common phenomenon that disrupts ongoing production.

Erfindungsgemäß wird das Angeln mittels Faltens des Rohrendes ausgeführt, und zwar so, daß das Rohrende mittels Presse, Hammers o. dgl. zunächst aus seiner runden Form in die eines gleichseitigen Vielecks umgedrückt und dieses Vieleck weiter verengt wird, wobei die Vieleckseiten nach innen eingewölbt werden, bis sich die Einwölbungen fast treffen. Die so gebildeten Strahlen werden dann alle nach einer Richtung hin abgebogen. Es entsteht so eine Ziehangel, die zentrisch zurRohrachse angeordnet ist und deren Gesamtquerschnitt gleich dem des Rohres bleibt.According to the invention, the fishing is carried out by folding the end of the pipe, in such a way that the end of the pipe by means of a press, hammer or the like round shape into that of an equilateral polygon and this polygon further is narrowed, the polygon sides are arched inward until the Almost hitting bulges. The rays formed in this way then all become one Turned towards. The result is a pulling hinge that is centric to the pipe axis is arranged and the total cross-section remains the same as that of the pipe.

Die Abb. i bis 6 zeigen das Falten eines Rohrendes zu einer Ziehangel von quadratischem Querschnitt. Es stellen dar: Abb. i den runden kohrquerschnitt, Abb. 2 die quadratische Form, Abb.3 das Einwölben der Quadratseiten, Abb. ¢ die Fortsetzung dieser Einwölbung, Abb. 5 das Abbiegen der Strahlen und Abb. 6 die fertige Angel.Figs. I to 6 show the folding of a pipe end to form a pull rod of square cross-section. It shows: Fig. I the round cross-section, Fig. 2 the square shape, Fig.3 the bulging of the square sides, Fig. ¢ the Continuation of this bulge, Fig. 5 the turning of the rays and Fig. 6 the finished one Fishing rod.

Claims (1)

PATENTANSPRUCH Bildung von Ziehangeln anRohren u. dgl. durch Falten, dadurch gekennzeichnet, daß das Rohrende so zusammengedrückt wird, daß sein Querschnitt nacheinander die Form eines gleichseitigen Vielecks (2), eines Vielecks mit einwärts gewölbten Seiten (3), eines Sternes (4), eines Schaufelrades (5) und schließlich die Fertigform ähnlich einer Rosette (6) erhält. PATENT CLAIM Formation of pull rods on pipes and the like by folding, characterized in that the pipe end is compressed so that its cross-section successively takes the form of an equilateral polygon (2), a polygon with inwardly curved sides (3), a star (4) , a paddle wheel (5) and finally the finished form similar to a rosette (6).
DEI34671D Formation of Ziehangeln on pipes u. Like. By folding Expired DE537757C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEI34671D DE537757C (en) Formation of Ziehangeln on pipes u. Like. By folding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI34671D DE537757C (en) Formation of Ziehangeln on pipes u. Like. By folding

Publications (1)

Publication Number Publication Date
DE537757C true DE537757C (en) 1931-11-06

Family

ID=7188774

Family Applications (1)

Application Number Title Priority Date Filing Date
DEI34671D Expired DE537757C (en) Formation of Ziehangeln on pipes u. Like. By folding

Country Status (1)

Country Link
DE (1) DE537757C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1085125B (en) * 1957-10-26 1960-07-14 Bremshey & Co Device for producing pull rods on pipes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1085125B (en) * 1957-10-26 1960-07-14 Bremshey & Co Device for producing pull rods on pipes

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