DE1752994A1 - Device to avoid buckling when pushing rods and tubes into the drawing die of a drawing bench - Google Patents

Device to avoid buckling when pushing rods and tubes into the drawing die of a drawing bench

Info

Publication number
DE1752994A1
DE1752994A1 DE19681752994 DE1752994A DE1752994A1 DE 1752994 A1 DE1752994 A1 DE 1752994A1 DE 19681752994 DE19681752994 DE 19681752994 DE 1752994 A DE1752994 A DE 1752994A DE 1752994 A1 DE1752994 A1 DE 1752994A1
Authority
DE
Germany
Prior art keywords
tubes
die
pushing rods
drawing die
avoid buckling
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.)
Pending
Application number
DE19681752994
Other languages
German (de)
Inventor
Rolf Dipl-Ing Thelemann
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.)
THELEMANN ROLF DIPL ING
Original Assignee
THELEMANN ROLF DIPL ING
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 THELEMANN ROLF DIPL ING filed Critical THELEMANN ROLF DIPL ING
Priority to DE19681752994 priority Critical patent/DE1752994A1/en
Publication of DE1752994A1 publication Critical patent/DE1752994A1/en
Pending 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
    • 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
    • B21C5/006—Pointing; Push-pointing of solid material, e.g. wire or profiles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Extraction Processes (AREA)

Description

Beschreibung !Description !

n Torrichtung zur Vermeidung des Auskniokene beim Einstoßen von Stangen und Rohren in die Ziehmatrize einer Ziehbank. " n Door direction to avoid kneeling when pushing rods and tubes into the drawing die of a draw bench. "

Die Erfindung betrifft eine "Vorrichtung zur Vermeidung des Ausknickene beim Einstoßen von Stangen und Rohren in die Matrize einer Ziehbank.The invention relates to an "avoidance device." the buckling when pushing rods and tubes into the die of a drawbench.

Beim Einstoßen von Stangen oder Rohren mittels der bekannten Einstoßvorrichtung mit hin- und herbewegbaren Klemm backen zum angellossn Ziehen von dünnen Stangen und Rohren ist es erforderlich, das Ziehgut swisohen der Einstoßvor richtung und der Ziehmatrize zu stützen, um ein Ausknioken des Ziehguteβ bu vermeiden·When pushing rods or pipes using the known Push-in device with clamping jaws that can be moved to and fro for pulling thin rods and tubes it is necessary to swisohen the drawing material in the push-in device and to support the drawing die in order to prevent the drawn material from kinking

Es ist eine Einstoßvorrichtung bekannt, die mittels einer beweglichen Spannzange das Ziehgut erfaßt und es in 2 Teilhüben duroh die Matrize hindurchdrückt. Bei diesem Vorgang ist das Ziehgut im Bereich der Teilhüb· sioh frei überlassen und hätte beispielsweise beim Einstoßen von Ziehgut mit geringem Querschnitt ein Aueknicken zur Folge. Ausserdem ist diese Einstelleinrichtung sehr aufwendig und daher unwirt schaftlich bei häufigem Programmweohsel.A push-in device is known which grips the material to be drawn by means of a movable collet and moves it in two partial strokes by pushing the die through. During this process, the material to be drawn is left free in the area of the partial stroke and would, for example, result in buckling when pushing in drawn material with a small cross-section. Also is this setting device is very expensive and therefore uneconomical if the program changes frequently.

109816/0822 ~2~ bad original109816/0822 ~ 2 ~ bad original

Weiterhin ist eine Vorrichtung zum Einstoßen von Stangen in die Ziehmatrize einer Ziehbank mit hin- und herbewegbaren Klemmbacken bekannt, bei der 4*e» an den vorderen Abschnitten der Innenflächen der Klemmbacken und am Ziehgut im Raum zwischen den Klemmbacken und der Ziehmatrize gleitend anliegende Zuaatzbacken angeordnet sind, die, entgegen einem elastischen Andruokmittel, gegenüber den Klemmbacken verschiebbar sind· Diese Vorrichtung ist nicht geeignet sum kniokfreien Einstoßen von beispiels -weise Ziehgut mit geringem Querschnitt gleloher Kanten -länge bzw. kleinem Durchmesser mit der Neigung sun Aus -knicken in mehrere Richtungen, da die Klemmbacken und führungsbacken nloht in ein und demselben Quersohnittsumfang nebeneinander untergebracht werden können·Furthermore, a device for pushing rods into the drawing die of a draw bench with clamping jaws that can be moved to and fro is known, in which 4 * e »on the front sections of the inner surfaces of the clamping jaws and Additional jaws that slide against the drawn material in the space between the clamping jaws and the drawing die are arranged, which, contrary to an elastic Andruokmittel, opposite The clamping jaws can be moved · This device is not suitable for knock-free pushing in of, for example, drawn material with a small cross-section, smooth edge length or small diameter with the inclination of sun buckling in several directions, since the clamping jaws and guide jaws do not need to be in one and the same Transverse circumference can be accommodated next to each other

Der Erfindung liegt daher die Aufgab« zugrunde, die Torgenannten Mängel au beseitigen und eine einfaohe, funktionssichere Vorrichtung tu sohaffen, die ein Aueknieken beim Einstoßen von Stangen oder Rohren in die Matrise einer Ziehbank vermeidet· Diese Aufgabe wird erflndungegemäß daduroh gelöst, daß in einem Gehäuse bewegliche FUhrungetei-Ie durch federnde Elemente getrennt angeordnet sind, die Bohrungen bzw· Offnungen aufweisen, die dem Querschnitt des einzustoßenden Zlehgutes entsprechen·The invention is therefore based on the object of eliminating the deficiencies mentioned above and providing a simple, functionally reliable device that will cause you to kneel down Pushing rods or tubes into the matrix of a Drawbench avoids · This object is achieved according to the invention in that movable guide parts are arranged in a housing separated by resilient elements which Have bores or openings that correspond to the cross-section of the chip to be pushed in

Ein Ausführungsbeispiel ist in der Zeichnung dargestellt und wird im folgenden näher beschrieben t An exemplary embodiment is shown in the drawing and will be described in more detail below t

109816/0822 " ' Ϊ» ο*««.109816/0822 "'Ϊ» ο * ««.

Der iÄngeeohnitt zeigt die Stellung der mitgehenden Dornetange (l) eine aufgeschobene Rohrluppe (2) ror dem Einstoßen der Rohrluppe (2) in die Ziehmatrize (3) mittels Einstoßzange (4) deren Backen (5) und (6) die Rohrluppe (2) gefaßt haben und diese in Pfeilriohtung einBtoöen. Die aufklappbare Halterung (7) trägt das Gehäuse (8) der erfindungsgemäßen Vorrichtung in der das Ziehgut (2) stützende bewegliche ?ührungsteile (9) und (lo) angeordnet sind und deren Abstand durch federnde Elemente (11) roneinander getrennt so bemessen ist, da!? das Ziehgut (2) knioksicher über die geseilte Bin -stoßlänge geführt ist· Die mitgehende Dornstange (1) j et von den Ziehbacken (12) und (13) der Ziehzange (14) ge -faßt.The iÄngeeohnitt shows the position of the others Dornetange (l) ror a slipped tube tube (2) pushing the tubular blank (2) into the drawing die (3) using pliers (4) whose jaws (5) and (6) die Have grasped the tube bobbin (2) and align it with the arrow tooeing. The hinged holder (7) carries the housing (8) of the device according to the invention in which the Drawings (2) supporting movable guide parts (9) and (lo) are arranged and their distance is measured separately from one another by resilient elements (11) so that there!? the drawn material (2) is guided over the rope joint length so that it is safe from kneeling · The accompanying mandrel bar (1) j et of the pulling jaws (12) and (13) of the pulling pliers (14).

Alle neuen in der Beschreibung/oder der Zeichnung offenbarten Ein«el~ und Kombinationsnerkmal« des Anmeldtgegenstandes werden als erfindungswesentlich angesehen.All new single and combination features of the subject of the application disclosed in the description / or the drawing are regarded as essential to the invention.

In Betracht gezogene Druckschriften :Considered publications:

Deutsohe Patentschrift 949 555f deutsche Auslegeschrift 1 232 916.German patent specification 949 555f German interpretation document 1 232 916.

109816/0822 ^14111 109816/0822 ^ 14111

BAD ORIGINALBATH ORIGINAL

Claims (1)

16.3.6816.3.68 PatentansprücheClaims Vorrichtung zur Vermeidung dee Aueknickene beim Ein» stoßen yon Stangen und Rohren in die Matriee einer Ziehbank, die zwischen den Spannbacken der Einetoßrorriohtune einereeite und der Matrize andererseits angeordnet ist und sich in Ziehaohsenrichtung um mindestens die läng« des beabsichtigten linstoßhubee federnd**u-■ammendrüokbar ist, daduroh gekennzeichnet, daß in einem uehftuae bewegliche TUhrungsteile duroh federnde Kiemente getrennt angeordnet sind, die Bohrungen bsw. öffnungen aufweisen, die de« Querschnitt de· einmusteßenden liehgut entspreohen.Device to avoid dee kinks when entering » push yon rods and tubes into the matrix of a drawbench, which is arranged between the clamping jaws of the Einetoßrorriohtune on the one hand and the die on the other hand and in the direction of the puller neck by at least which is resiliently depressible along the intended linear stroke, because it is characterized by the fact that in a uehftuae movable guide parts duroh resilient Kiemente are arranged separately, the bsw bsw. have openings which correspond to the cross-section of the items to be loaned. ORIGINAL 109816/0822ORIGINAL 109816/0822
DE19681752994 1968-08-17 1968-08-17 Device to avoid buckling when pushing rods and tubes into the drawing die of a drawing bench Pending DE1752994A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19681752994 DE1752994A1 (en) 1968-08-17 1968-08-17 Device to avoid buckling when pushing rods and tubes into the drawing die of a drawing bench

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681752994 DE1752994A1 (en) 1968-08-17 1968-08-17 Device to avoid buckling when pushing rods and tubes into the drawing die of a drawing bench

Publications (1)

Publication Number Publication Date
DE1752994A1 true DE1752994A1 (en) 1971-04-15

Family

ID=5693076

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19681752994 Pending DE1752994A1 (en) 1968-08-17 1968-08-17 Device to avoid buckling when pushing rods and tubes into the drawing die of a drawing bench

Country Status (1)

Country Link
DE (1) DE1752994A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0288086A2 (en) * 1987-04-24 1988-10-26 DANIELI & C. OFFICINE MECCANICHE S.p.A. Device for the reverse drawing of bars and relative method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0288086A2 (en) * 1987-04-24 1988-10-26 DANIELI & C. OFFICINE MECCANICHE S.p.A. Device for the reverse drawing of bars and relative method
EP0288086A3 (en) * 1987-04-24 1989-02-08 DANIELI & C. OFFICINE MECCANICHE S.p.A. Device for the reverse drawing of bars and relative method

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