EP0255590B1 - Ziehvorrichtung für Rohre mit endseitig gewölbter Rohrwand - Google Patents

Ziehvorrichtung für Rohre mit endseitig gewölbter Rohrwand Download PDF

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Publication number
EP0255590B1
EP0255590B1 EP87108656A EP87108656A EP0255590B1 EP 0255590 B1 EP0255590 B1 EP 0255590B1 EP 87108656 A EP87108656 A EP 87108656A EP 87108656 A EP87108656 A EP 87108656A EP 0255590 B1 EP0255590 B1 EP 0255590B1
Authority
EP
European Patent Office
Prior art keywords
rod
tube
stopper
transport
dished
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
EP87108656A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0255590A3 (en
EP0255590A2 (de
Inventor
Rudolf Bültmann
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT87108656T priority Critical patent/ATE45519T1/de
Publication of EP0255590A2 publication Critical patent/EP0255590A2/de
Publication of EP0255590A3 publication Critical patent/EP0255590A3/de
Application granted granted Critical
Publication of EP0255590B1 publication Critical patent/EP0255590B1/de
Expired legal-status Critical Current

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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
    • 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
    • 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
    • B21C3/00—Profiling tools for metal drawing; Combinations of dies and mandrels
    • B21C3/16—Mandrels; Mounting or adjusting same

Definitions

  • the invention relates to a drawing device for pipes with an end-curved pipe wall in the manner according to the features of the preamble in the claim.
  • a domed, domed wall is present in particular in the case of pipes with a larger diameter.
  • the head of the nail-shaped drawbar lies against the inside of the arch, the shaft protrudes so far that the jaws of the pulling carriage can grip it.
  • the drawbar has an axial rod on the back, which is received by the stopper rod, which is designed as a tube. This guide prevents the drawing head from tilting during the return movement of the drawing bar from the drawn tube, which could result in damage to the drawing material.
  • transport rollers are attached in the area of the drawing nozzle, which, when the return transport is to take place, move transversely in such a way that they abut the axial rod.
  • the transport rollers move out of the way again, so that the stopper and stopper rod are free to receive a new pipe.
  • the known system is to be developed in such a way that a complete return transport of the drawing bar can be carried out in one operation.
  • the transport rollers can find a free section on the axial rod immediately after the end of the drawing process, because the holding tube which surrounds the rod is provided with slots for the transport rollers to pass through. Because in this case the transport rollers are not in front of but behind the pulling plug, a complete stop of the drawing bar on the pulling plug is also possible.
  • the simple measure according to the invention thus makes a significant contribution to the automatic sequence of the drawing process.
  • a drawing iron 13 with a drawing nozzle 14 and an associated drawing carriage 18 with clamping jaws 19 can be seen in the figures.
  • the tube to be drawn the so-called blank 10 with a dome-like curved tube wall 12
  • a head 16 of the drawing bar rests on the inside of the tube against the curvature 12, while a shaft 17 of the drawing bar extends through the tube opening and the nozzle and protrudes so far that the clamping jaws 19 are able to clamp the shaft 17.
  • the end of the pull plug 20 lies against the head 16.
  • the pulling plug is held by a plug rod 23, which in this case is designed as a tube and slidably receives an axial rod 22, which is part of the drawing bar 15.
  • the pulling is in progress.
  • a piece 11 of the tube is already calibrated.
  • the pulling plug 20 is pushed into the pulling nozzle.
  • the two transport rollers 24 are provided for returning the drawing bar to the position 16 ', where the drawing head rests against the pulling plug, which are each attached to brackets 26 by means of sliding devices 25.
  • the transport rollers 24 rest against the axial rod 22 for the return transport of the drawing bar, wherein slots 27 are formed for the passage in the tube 23.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Extraction Processes (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Vehicle Body Suspensions (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Buffer Packaging (AREA)
EP87108656A 1986-08-02 1987-06-16 Ziehvorrichtung für Rohre mit endseitig gewölbter Rohrwand Expired EP0255590B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87108656T ATE45519T1 (de) 1986-08-02 1987-06-16 Ziehvorrichtung fuer rohre mit endseitig gewoelbter rohrwand.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3626235A DE3626235C1 (de) 1986-08-02 1986-08-02 Ziehvorrichtung fuer Rohre mit endseitig gewoelbter Rohrwand
DE3626235 1986-08-02

Publications (3)

Publication Number Publication Date
EP0255590A2 EP0255590A2 (de) 1988-02-10
EP0255590A3 EP0255590A3 (en) 1988-04-20
EP0255590B1 true EP0255590B1 (de) 1989-08-16

Family

ID=6306578

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87108656A Expired EP0255590B1 (de) 1986-08-02 1987-06-16 Ziehvorrichtung für Rohre mit endseitig gewölbter Rohrwand

Country Status (4)

Country Link
EP (1) EP0255590B1 (un)
AT (1) ATE45519T1 (un)
DE (1) DE3626235C1 (un)
ES (1) ES2010205B3 (un)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5057312B2 (ja) 2006-12-14 2012-10-24 シーティーエー・テクノロジー・プロプリエタリー・リミテッド 多流路銅管の製造方法及び該管を製造する装置
DE102010022123C5 (de) * 2010-05-20 2023-03-02 Leonhard Kurz Stiftung & Co. Kg Sicherheitselement
CN107188394B (zh) * 2017-07-25 2019-12-10 成都光明派特贵金属有限公司 玻璃出料管拉拔模组、玻璃出料管制造方法及玻璃出料管
CN112024624A (zh) * 2020-07-22 2020-12-04 无锡科拓精密合金有限公司 一种内壁高光洁度无缝钢管的冷拔加工方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE569686C (de) * 1927-12-22 1933-02-06 Ver Deutsche Metallwerke Ag Verfahren zur Herstellung von Rohren durch Ziehen auf einem Dorn
CH394996A (de) * 1961-09-02 1965-07-15 Kieserling & Albrecht Verfahren zum Ziehen von Rohren, insbesondere von dünnwandigen Rohren aus Nichteisenmetallen, über Stopfen in mehreren aufeinanderfolgenden Zügen und Ziehbank zur Durchführung des Verfahrens
DE1602313A1 (de) * 1967-08-09 1970-08-06 Mannesmann Meer Ag Ziehen von grossen Rohren mit Fremdangel
DE3215717A1 (de) * 1982-04-28 1983-11-03 Bültmann KG, 5982 Neuenrade Rohr-ziehvorrichtung

Also Published As

Publication number Publication date
ES2010205B3 (es) 1989-11-01
ATE45519T1 (de) 1989-09-15
DE3626235C1 (de) 1987-11-26
EP0255590A3 (en) 1988-04-20
EP0255590A2 (de) 1988-02-10

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