EP0605067B1 - Porte-filière - Google Patents

Porte-filière Download PDF

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Publication number
EP0605067B1
EP0605067B1 EP93250261A EP93250261A EP0605067B1 EP 0605067 B1 EP0605067 B1 EP 0605067B1 EP 93250261 A EP93250261 A EP 93250261A EP 93250261 A EP93250261 A EP 93250261A EP 0605067 B1 EP0605067 B1 EP 0605067B1
Authority
EP
European Patent Office
Prior art keywords
ring holder
rollers
guide
tube
ring
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 - Lifetime
Application number
EP93250261A
Other languages
German (de)
English (en)
Other versions
EP0605067A1 (fr
Inventor
Karl-Heinz Dipl.-Ing. Kemmerling
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
Mannesmann 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 Mannesmann AG filed Critical Mannesmann AG
Publication of EP0605067A1 publication Critical patent/EP0605067A1/fr
Application granted granted Critical
Publication of EP0605067B1 publication Critical patent/EP0605067B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B21C3/00—Profiling tools for metal drawing; Combinations of dies and mandrels
    • B21C3/02—Dies; Selection of material therefor; Cleaning thereof
    • B21C3/08—Dies; Selection of material therefor; Cleaning thereof with section defined by rollers, balls, or the like
    • 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
    • B21C3/02—Dies; Selection of material therefor; Cleaning thereof
    • B21C3/12—Die holders; Rotating dies
    • B21C3/14—Die holders combined with devices for guiding the drawing material or combined with devices for cooling heating, or lubricating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B39/14—Guiding, positioning or aligning work
    • B21B39/16—Guiding, positioning or aligning work immediately before entering or after leaving the pass
    • B21B39/165—Guides or guide rollers for rods, bars, rounds, tubes ; Aligning guides

Definitions

  • the invention relates to a drawing ring holder for a continuous drum drawing machine for drawing tubes with a drawing ring accommodated in the drawing ring holder and a guide arranged upstream in the drawing direction for centrically feeding the front pipe into the drawing tool (DE-C 10 09 146).
  • the tube bundle lying on a discharge table is passed through a drawing ring (drawing tool) in order to then be wound onto a drum that exerts the drawing force.
  • a drawing ring drawing tool
  • the drawing ring holder is often equipped with a straightening roller set, which sets up the tube bent by the tube bundle and feeds it to the actual deformation tool, the drawing ring.
  • the drawing ring holder is gimbal-suspended in order to set an equilibrium position in the start-up phase between the front pipe emerging from the basket of the discharge table and the finished pipe wound on the drawing drum.
  • the inside diameter of the guide which is usually designed as a nozzle according to the prior art, should correspond as far as possible to the soot diameter of the front pipe.
  • the problem often arises in practice that the transition from the reduced-diameter drawing bar to the tube diameter has a process-related thickening due to the folding process, which the guide must pass. This means that the inside diameter of the guide of this thickening must be dimensioned accordingly, and is therefore too large to guide the rest of the front pipe in perfect alignment with the drawing ring.
  • the aim of the present invention is to design a drawing ring holder with a guide so that on the one hand the transition area between the drawing die and the outer tube outer diameter slides easily through the guide and yet the guide can enclose the front tube so precisely so that optimal feeding to the drawing ring is guaranteed.
  • the invention therefore proposes to replace the known nozzle-shaped insertion ring by a two-roller set which can be opened when the thickened fishing end is inserted and which is closed at the start of the drawing in such a way that the outer tube is securely encompassed on the outer circumference and inserted flush into the drawing ring.
  • roller sets for guiding rod-shaped rolling stock and wire and for pulling wire is known from DD-A-1 280 053, but this prior art is concerned with the wear-resistant material of the guiding devices.
  • the rollers can be spread apart by spring force and brought together by pressure medium.
  • the springs arranged between the two rollers or their chocks spread apart the rollers for introducing the fishing end, while piston-cylinder units place the rollers on the outer circumference of the downtube during the actual drawing process.
  • the rollers In the retracted state, the rollers completely enclose the outer circumference of the front tube, so that exact guidance is ensured in all circumferential areas.
  • the rollers are stored in a cassette which can be exchangeably fastened to the drawing ring holder.
  • the drawing ring holder according to the invention permits a particularly secure guidance of the front tube and thereby results in even better qualities with regard to the tolerances of the drawn, in particular thin-walled tubes.
  • FIG 1 the principle of the known continuous drum drawing machine with its most important units is roughly simplified.
  • the front pipe 4 lies in a coiled form as a tube bundle in the basket of the discharge table 1. From there it is guided with its pointed fishing end through the drawing ring holder 6 and drawn onto the drawing drum 2 by means of drawing pliers, not shown. This is set into rotation, as a result of which the tube winds in several turns on the drawing drum 2 in the manner shown at 5, before it falls into the basket of the receiving table 3 lying under the drawing drum 2.
  • a two-roller set is shown enlarged in FIG.
  • the rollers 10 are calibrated according to the outer circumference of the front tube 4 and encompass the tube almost completely.
  • the rollers are mounted in chocks 13, which can be spread apart by springs at 11. With the aid of the cylinders indicated at 12, the chocks 13 and thus the rollers 10 can be brought together against the force of the springs 11, so that they enclose the tube, as shown in the drawing figure. When the cylinders 12 are relieved, the springs 11 cause them to spread apart, so that local thickening of the tube can happen at the end of the rod.
  • roller set 9 shown is arranged in a cassette 14 which, when the drawing dimension is changed, can be completely replaced with its roller set 9 by a roller set 9 of corresponding diameter.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Extraction Processes (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)

Claims (3)

  1. Porte-filière pour une machine d'étirage à tambour en continu pour étirer des tubes, comportant une filière reçue dans un porte-filière et un guide disposé en amont dans le sens d'étirage pour l'amenée centrale du prétube dans l'outil d'étirage,
    caractérisé en ce que le guide est constitué d'un jeu de deux rouleaux (9) calibré, dont le calibre correspond au diamètre externe du prétube (4) et dont les rouleaux (10) entourant complètement la périphérie externe du prétube (4) dans l'état en contact, librement rotatifs, peuvent être écartés l'un de l'autre à force (11,12) lors de l'introduction de l'extrémité épaissie transversalement à leurs axes et rapprochés lors du début de l'étirage.
  2. Porte-filière selon la revendication 1,
    caractérisé en ce que les rouleaux (10) peuvent être écartés par une force élastique et rapprochés en étant actionnés par un fluide sous pression.
  3. Porte-filière selon la revendication 1 ou 2,
    caractérisé en ce que les rouleaux (10) sont montés dans une cassette (14) fixée de façon interchangeable au porte-filière (6).
EP93250261A 1992-11-04 1993-09-27 Porte-filière Expired - Lifetime EP0605067B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4237833 1992-11-04
DE4237833 1992-11-04

Publications (2)

Publication Number Publication Date
EP0605067A1 EP0605067A1 (fr) 1994-07-06
EP0605067B1 true EP0605067B1 (fr) 1997-10-22

Family

ID=6472466

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93250261A Expired - Lifetime EP0605067B1 (fr) 1992-11-04 1993-09-27 Porte-filière

Country Status (2)

Country Link
EP (1) EP0605067B1 (fr)
DE (1) DE59307570D1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103274157B (zh) * 2013-06-08 2016-06-22 通用电气传感与检测（常州）有限公司 三辊主动旋转自开合圆柱体输送机构
CN110369522B (zh) * 2019-08-14 2024-07-23 广东科莱博科技有限公司 一种管坯推送装置及推送方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT174038B (de) * 1951-06-01 1953-02-25 Boehler & Co Ag Geb Einführungsvorrichtung für Walzgut
DE2714018C3 (de) * 1977-03-30 1980-07-10 Schumag Gmbh, 5100 Aachen Verfahren und Vorrichtung zum Herstellen von mit großer Genauigkeit geradem Stabmaterial durch Ziehen mit einem Ziehstein
US4329861A (en) * 1980-08-21 1982-05-18 Orion Machinery And Engineering Corporation Method and apparatus for drawing and cooling wire
IT1185129B (it) * 1985-06-28 1987-11-04 Innocenti Santeustacchio Spa Metodo ed apparecchiatura per guidare una billetta in entrata ad un laminatoio presso-perforatore
DD280053A1 (de) * 1989-02-17 1990-06-27 Freiberg Bergakademie Vorrichtung zum fuehren von metallischem walz- und ziehgut

Also Published As

Publication number Publication date
EP0605067A1 (fr) 1994-07-06
DE59307570D1 (de) 1997-11-27

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