EP0804301B1 - Verfahren zur verpackung von vorgerichtetem draht aus kupferlegierung in trommeln - Google Patents

Verfahren zur verpackung von vorgerichtetem draht aus kupferlegierung in trommeln Download PDF

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Publication number
EP0804301B1
EP0804301B1 EP95941759A EP95941759A EP0804301B1 EP 0804301 B1 EP0804301 B1 EP 0804301B1 EP 95941759 A EP95941759 A EP 95941759A EP 95941759 A EP95941759 A EP 95941759A EP 0804301 B1 EP0804301 B1 EP 0804301B1
Authority
EP
European Patent Office
Prior art keywords
wire
drum
fil
une
mpa
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
EP95941759A
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English (en)
French (fr)
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EP0804301A1 (de
Inventor
Robert Gillespie
Laurent Michard
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.)
Trefimetaux SAS
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Trefimetaux SAS
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Publication of EP0804301A1 publication Critical patent/EP0804301A1/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F1/00—Bending wire other than coiling; Straightening wire
    • B21F1/02—Straightening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C19/00—Devices for straightening wire or like work combined with or specially adapted for use in connection with drawing or winding machines or apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/02—Winding-up or coiling
    • B21C47/10—Winding-up or coiling by means of a moving guide
    • B21C47/14—Winding-up or coiling by means of a moving guide by means of a rotating guide, e.g. laying the material around a stationary reel or drum

Definitions

  • the invention relates to the packaging of alloy wires of pre-erected copper, in the form of barrel crowns, and in view of uses which may require in particular training the wire before use. Only the generic term "wire” will be used in what follows to designate all of the deliverable long semi-finished products in the form of crowns, even those of non-circular section.
  • This technique is applied to wires for welding in highly cold worked steel, of mechanical strength typically between 600 and 1200 N / mm 2 and of diameter ranging from 0.8 to 1.6 mm.
  • the pre-dressing technique allows the pre-trained wire to slide correctly in a sheath several tens of meters long, which makes it possible to supply a mobile welding station from a heavy wire storage unit, which it remains fixed.
  • the material is in rotation, the tool remaining fixed. This requires that the material presents itself in the form of relatively short sections (generally 3 to 4 m) and sufficiently straight so that they can be rotated.
  • the packaging according to the invention which solves the problems encountered with the bar turner do not increase appreciably the constraints at the wire producer.
  • said wire unwound, straight with an arrow less than 5 mm feeds a bar turning machine equipped with a straightener.
  • the wire has a deflection less than 0.5 mm / m, level that may be required for high precision machining.
  • brass is preferably chosen, taking into account the use (bar turning) that is made of pre-erected wire of this first object, but as it will be indicated below, other or harder alloys "brittle" that brass can be used.
  • the upper limits of diameter and mechanical resistance pre-erected wire result in particular from the need to limit the energy stored by the pre-erected wire during the casked. Beyond a certain threshold, the energy stored would be too large to be contained by the armature of a was, and could even present a danger in case of rupture of a barrel, resulting in the total release of constraints.
  • the invention solves a problem of productivity and / or level of quality of great economic importance. Furthermore, the solution to this problem could not be anticipated or suggested by the means mentioned in the prior art and relating to the conditioning of steel wires for welding. On the one hand, for those skilled in the art of turning brass, wire dressing is perceived as an essential operation, inseparable from machining according to method B. The possibility of eliminating wire dressing cannot come to mind of this skilled person.
  • wires for EDM are described in numerous patents, for example in European application no. 526 361-A1 in the name of the plaintiff.
  • the Applicant has found that the solution found with the wire for bar turning also applies to the wire for EDM.
  • the technical problem to be solved is as follows: when the wire breaks, the wire must be threaded automatically, so that EDM can continue without the need for manual intervention. For this, the EDM wire must not have any memory effect which means that the end of a wire initially in coil or in crown, tends to form a loop winding on itself. Thus, after breakage of the wire, the end of the wire retains its trajectory as if there had been no breakage of the wire.
  • the problem has been resolved by heat treating the wire and / or straightening it before winding.
  • the invention allows the elimination of these treatments, and avoids the use of coils, with the constraints linked to their use.
  • the use of spools limits the quantity of thread per spool (standard weight of 5 kg), even if this quantity tends to increase.
  • the coils must be mounted on a motorized reel, which generates both additional costs and vibrations incompatible with the precision of EDM machining.
  • said barrel may be a sealed barrel, and contain possibly other means (desiccant bags, products likely to fix ammonia, protective products adsorbent on the surface of the wire) to avoid these risks.
  • the invention ensures hermetic storage of the wire crown pre-erected (15), which avoids the risks of corrosion under constraint of the wire ("season cracking" in English), in humid atmosphere or in the presence of ammonia.
  • Other ways can also be used to further limit these risks: installation of desiccant sachets, or products likely to fix ammonia, or protective products adsorbents on the surface of the wire, insulation of drums to limit the impact of temperature variations ambient.
  • the invention also includes the use of a packaging process any pre-erected wire, whether it is wire steel, or a non-ferrous alloy other than copper, for directly supply wire to machining machines, especially lathes and lathe machines, or cold stamping.
  • machining machines especially lathes and lathe machines, or cold stamping.
  • the plaintiff has was able to verify the applicability to the steel wire, of the concept developed with copper alloys, such as brasses, and previously discussed.
  • the precision currently accessible with a spreader bar close to 4 mm / m is 10 ⁇ m, while that accessible with a spreader bar of 0.5 mm / m or less is of the order of 5 ⁇ m.
  • productivity gain is around 15% when we go from a bar of 4mm / m of arrow to a bar of 1mm of arrow or less.
  • the Applicant has carried out numerous other tests in varying the nature of the copper alloy and its geometric or mechanical characteristics, techniques machining, and the geometry of the machined parts.
  • the pre-straightened wire according to the invention made it possible to avoid treatment thermal of the crowns necessary to erase “the memory of the brass ", and to obtain, without heat treatment, parts with an arrow of 0.05 mm, for a tolerance of 0.07 mm.
  • the Applicant has also used the pre-drawn wire according to the invention to manufacture parts, no longer by machining, but by cold stamping. It also observed that, in the case of very long pieces, typically from 30 to 50 mm, the problem of deflection also arises, due to the residual deformation caused during the bending preceding the placing in barrels, and can lead to discard of the final part, despite repeated adjustments of the dressing device. In this case also, the pre-erected wire of the example made it possible to considerably limit the value of the arrow.
  • a typical example of parts obtained by cold stamping, taking into account tight geometrical tolerances, are the anodes of alkaline batteries.
  • the tests also related to wires of different diameters (tests with brass wires of 3 and 6 mm in diameter), and of different mechanical strengths: "hard” or “brittle” alloys such as lead bronze (Cu-Sn-Pb), or lead nickel silver (Cu-Zn-Ni-Mn-Pb), within the limits as they appear in claim 1. These limits result from the need to obtain a deflection of less than 5 mm / m for the bar subjected to rotation for machining (method B). If wires that are too large and / or too strong are used, this results in a residual deflection greater than this limit value of 5 mm / m of bar.
  • “hard” or “brittle” alloys such as lead bronze (Cu-Sn-Pb), or lead nickel silver (Cu-Zn-Ni-Mn-Pb)
  • This wire according to the invention has been tested on an EDM machine, compared to a standard wire.
  • a standard wire includes a thermal or mechanical dressing treatment before winding.
  • the barrel wire according to the invention behaved in a manner similar to that of the coil wire, heat treated or mechanically straightened, according to the prior art.
  • prewired alloy wires of Cu-Sn-Pb composition (“lead bronze"), and Cu-Zn-Ni-Mn-Pb (“nickel silver at lead ”) could thus be packaged in barrels.
  • the Applicant has observed that the packaging according to the invention allowed, for an equal barrel size, double the amount of wire compared to traditional wire packaging in barrels (500 kg according to the invention instead of 250 kg according to the prior art). That is that, in traditional packaging, turns must be relatively "ventilated” so as to limit the problems of entanglement at the reel, while all turns are fully blocked and with a compact stack in the case of the invention.
  • Pre-dressing wire 1 Pre-dressed wire 2 Keg 3 Wire feed system 4 Small motorized capstan 5 Trainer 2 shots 6 Large motorized capstan 7 Pair of rollers at 90 ° and rotated 8 Drum lowering system 9 Plastic washer 10 Support legs 11 Elastic 12 Rigid rod 13 Ring 14 Pre-erected wire crown 15 Drum 16

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wire Processing (AREA)
  • Metal Extraction Processes (AREA)
  • Metal Rolling (AREA)
  • Gasket Seals (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
  • Coiling Of Filamentary Materials In General (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)

Claims (7)

  1. Verfahren zur Verpackung von vorgerichtetem Metalldraht in zylinderförmigen Behältern, bei dem
    a) der vorzurichtende Draht eine Reihe von Richtwalzen durchläuft und dabei von einer Antriebsrolle großen Durchmessers angetrieben wird, welche die Geradlinigkeit des Drahtes sicherstellt,
    b) der Draht dann eine Drehung erfährt, indem er zwei nicht motorisierte Walzenpaare durchläuft, welche in zwei Querebenen liegen und sich um den Draht drehen,
    c) der Draht, der von einer sich in gleicher Weise drehenden Trommel geführt wird, unten im Behälter abgelegt wird,
    d) der Behälter sich mit fortschreitender Befüllung abwärts bewegt, so daß der Abstand zwischen der freien Oberfläche des Drahtes und der Trommelbasis konstant bleibt,
    wobei der Draht aus einer Kupferlegierung besteht und einen Durchmesser von weniger als 6 mm sowie eine mechanische Festigkeit von 400 MPa bis 750 MPa aufweist, so daß der abgerollte Draht geradlinig ist mit einem Durchhang pro Meter von weniger als 5 mm und eine Abstechdrehmaschine versorgen kann.
  2. Verfahren nach Anspruch 1, bei dem die Kupferlegierung ein Messing ist.
  3. Verfahren zur Verpackung von vorgerichtetem Metalldraht in zylinderförmigen Behältern, bei dem
    a) der vorzurichtende Draht eine Reihe von Richtwalzen durchläuft und dabei von einer Antriebsrolle großen Durchmessers angetrieben wird, welche die Geradlinigkeit des Drahtes sicherstellt,
    b) der Draht dann eine Drehung erfährt, indem er zwei nicht motorisierte Walzenpaare durchläuft, welche in zwei Querebenen liegen und sich um den Draht drehen,
    c) der Draht, der von einer sich in gleicher Weise drehenden Trommel geführt wird, unten im Behälter abgelegt wird,
    d) der Behälter sich mit fortschreitender Befüllung abwärts bewegt, so daß der Abstand zwischen der freien Oberfläche des Drahtes und der Trommelbasis konstant bleibt,
    wobei der Draht ein Draht zur elektroerosiven Bearbeitung ist, der außen eine Legierungsschicht aus Cu-Zn aufweist, einen Durchmesser von 0,15 mm bis 0,35 mm und eine mechanische Festigkeit von 500 MPa bis 1100 MPa hat, so daß der abgerollte Draht geradlinig ist mit einem Durchhang pro Meter von weniger als 30 mm.
  4. Verfahren nach einem der Ansprüche 1 bis 3, bei dem zur Vermeidung von Spannungskorrosionsgefahren des Drahtes der Behälter ein dichter Behälter ist und eventuell weitere Mittel enthält (Trockenmittelbeutel, Produkte, die zur Ammoniakanlagerung geeignet sind, Schutzmittel, die an der Oberfläche des Drahtes adsorbieren), um diese Gefahren zu vermeiden.
  5. Verwendung eines Verfahrens zur Verpackung in Behältern nach einem der Ansprüche 1 bis 2 oder nach den Ansprüchen 1 bis 2 und 4 zur direkten Metalldrahtversorgung von Bearbeitungsmaschinen, insbesondere Drehmaschinen und Abstechdrehmaschinen, oder Kaltprägewerkzeugen.
  6. Verwendung nach Anspruch 5, bei der der Metalldraht ein Draht aus Stahl oder einer Nichteisenlegierung ist.
  7. Verwendung eines Verfahrens zur Verpackung in Behältern nach Anspruch 3 oder nach den Ansprüchen 3 und 4 zur Drahtversorgung einer elektroerosiven Bearbeitungsmaschine.
EP95941759A 1995-01-16 1995-12-04 Verfahren zur verpackung von vorgerichtetem draht aus kupferlegierung in trommeln Expired - Lifetime EP0804301B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9500607A FR2729373A1 (fr) 1995-01-16 1995-01-16 Conditionnement en fut de fil d'alliage de cuivre pre-dresse
FR9500607 1995-01-16
PCT/FR1995/001594 WO1996022166A1 (fr) 1995-01-16 1995-12-04 Conditionnement en fut de fil d'alliage de cuivre pre-dresse

Publications (2)

Publication Number Publication Date
EP0804301A1 EP0804301A1 (de) 1997-11-05
EP0804301B1 true EP0804301B1 (de) 1999-02-24

Family

ID=9475305

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95941759A Expired - Lifetime EP0804301B1 (de) 1995-01-16 1995-12-04 Verfahren zur verpackung von vorgerichtetem draht aus kupferlegierung in trommeln

Country Status (11)

Country Link
EP (1) EP0804301B1 (de)
JP (1) JP2919975B2 (de)
KR (1) KR100387022B1 (de)
CN (1) CN1080606C (de)
AT (1) ATE176878T1 (de)
AU (1) AU4307196A (de)
CA (1) CA2209766C (de)
DE (1) DE69507967T2 (de)
FR (1) FR2729373A1 (de)
TW (1) TW383237B (de)
WO (1) WO1996022166A1 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19811209C2 (de) * 1998-03-10 2000-02-24 Ethicon Gmbh Verfahren und Vorrichtung zum Richten von Draht
US6019303A (en) * 1998-12-16 2000-02-01 Lincoln Global, Inc. Method and apparatus for packing wire in a storage drum
FR2867166B1 (fr) * 2004-03-02 2006-06-02 Laurent Bernard Edmond Michard Conditionnement de fil metallique pre-dresse, et dispositif pour le remplissage d'un tel conditionnement
US20060196794A1 (en) * 2005-03-07 2006-09-07 Lincoln Global, Inc. Welding wire container and method of making the same
US20060266794A1 (en) 2005-05-25 2006-11-30 Lincoln Global, Inc. Method and apparatus for packaging wire in a wire container
US8894001B2 (en) * 2009-06-03 2014-11-25 Grant Calverley Gyroglider power-generation, control apparatus and method
CN103480677A (zh) * 2013-09-30 2014-01-01 无锡常欣科技股份有限公司 收线机的校直器支架装置
GB201401597D0 (en) * 2014-01-30 2014-03-19 Harrison Spinks Components Ltd Coiling apparatus and method
DE202015104530U1 (de) * 2015-08-26 2016-12-01 Dirk Hagenbäumer Transportsicherung für einen in einem Behältnis, insbesondere Fass, eingespulten Draht, insbesondere Schweißdraht
FR3051696B1 (fr) * 2016-05-27 2018-06-15 Compagnie Generale Des Etablissements Michelin Dispositif et procede de traction et de dressage d'un monofilament metallique
CN106044372A (zh) * 2016-07-29 2016-10-26 河南省西工机电设备有限公司 一种防乱丝飞轮盘机构的高速桶装机
CN107042270A (zh) * 2016-12-20 2017-08-15 陈关莲 弹簧机送料机构
CN110146324B (zh) * 2019-06-14 2021-09-17 上海外高桥造船有限公司 焊丝化学元素分析用铁屑取样装置及其取样方法
US12240034B2 (en) 2022-01-03 2025-03-04 Lincoln Global, Inc. Wire straightening solution for bulk packaging
CN117381090B (zh) * 2023-11-13 2024-05-07 北京工业大学 一种适用于激光增材制造技术的送料装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1894703A (en) * 1931-06-03 1933-01-17 Nat Standard Co Wire straightening apparatus
BE531234A (de) * 1953-08-18
DE1452981C3 (de) * 1964-06-11 1975-10-30 Ferrotest Gmbh, Basel (Schweiz) Vorrichtung zum Richten und Kaltverfestigen von zu Bunden gewickeltem Drahtmaterial aus Stahl
AT368044B (de) * 1981-03-26 1982-08-25 Voest Alpine Ag Verfahren und vorrichtung zum aufwickeln gerichte-ter blechbaender
JPS58157931A (ja) * 1982-03-16 1983-09-20 Furukawa Electric Co Ltd:The 高力導電用銅合金
JPS62220218A (ja) * 1986-03-19 1987-09-28 Nippon Steel Weld Prod & Eng Co Ltd 溶接ワイヤ装填装置

Also Published As

Publication number Publication date
WO1996022166A1 (fr) 1996-07-25
JPH10510763A (ja) 1998-10-20
DE69507967D1 (de) 1999-04-01
CN1080606C (zh) 2002-03-13
HK1001515A1 (en) 1998-06-26
CA2209766C (fr) 2005-05-17
CA2209766A1 (fr) 1996-07-25
CN1172444A (zh) 1998-02-04
ATE176878T1 (de) 1999-03-15
EP0804301A1 (de) 1997-11-05
TW383237B (en) 2000-03-01
FR2729373A1 (fr) 1996-07-19
MX9704982A (es) 1998-06-30
JP2919975B2 (ja) 1999-07-19
AU4307196A (en) 1996-08-07
FR2729373B1 (de) 1997-02-28
KR19980701422A (ko) 1998-05-15
KR100387022B1 (ko) 2003-08-14
DE69507967T2 (de) 1999-08-19

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