EP0931601B1 - Vorrichtung zur Reinigung von Draht für die Herstellung von gezogenen Metalldrähten - Google Patents

Vorrichtung zur Reinigung von Draht für die Herstellung von gezogenen Metalldrähten Download PDF

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Publication number
EP0931601B1
EP0931601B1 EP98830031A EP98830031A EP0931601B1 EP 0931601 B1 EP0931601 B1 EP 0931601B1 EP 98830031 A EP98830031 A EP 98830031A EP 98830031 A EP98830031 A EP 98830031A EP 0931601 B1 EP0931601 B1 EP 0931601B1
Authority
EP
European Patent Office
Prior art keywords
wire rod
jaws
advance
line
operating elements
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
EP98830031A
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English (en)
French (fr)
Other versions
EP0931601A1 (de
Inventor
Giulio Lisciani
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.)
R Lisciani Trafilerie Srl
Original Assignee
R Lisciani Trafilerie Srl
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
Priority to PT98830031T priority Critical patent/PT931601E/pt
Priority to EP98830031A priority patent/EP0931601B1/de
Priority to AT98830031T priority patent/ATE226489T1/de
Priority to DK98830031T priority patent/DK0931601T3/da
Priority to DE69808879T priority patent/DE69808879T2/de
Application filed by R Lisciani Trafilerie Srl filed Critical R Lisciani Trafilerie Srl
Priority to ES98830031T priority patent/ES2185136T3/es
Priority to SI9830315T priority patent/SI0931601T1/xx
Publication of EP0931601A1 publication Critical patent/EP0931601A1/de
Application granted granted Critical
Publication of EP0931601B1 publication Critical patent/EP0931601B1/de
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
    • B21C9/00—Cooling, heating or lubricating drawing material
    • 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
    • B21C43/00—Devices for cleaning metal products combined with or specially adapted for use with machines or apparatus provided for in this subclass
    • B21C43/02—Devices for cleaning metal products combined with or specially adapted for use with machines or apparatus provided for in this subclass combined with or specially adapted for use in connection with drawing or winding machines or apparatus
    • B21C43/04—Devices for de-scaling wire or like flexible work

Definitions

  • the present invention relates to the mechanical cleaning of lengthened semi-finished iron products commonly called wire rods, destined in particular to the production of drawn metal wires.
  • Drawing is a technological process whereby semi-finished products with roughly round cross section are reduced into wires with progressive reductions in cross section effected by moving through a succession of die plates of decreasing diameters.
  • Such a process applied to iron products necessarily requires a preliminary preparation of the semi-finished item which influences very heavily the drawing process itself.
  • the present invention relates specifically to a device for mechanical cleaning of wire rod for the production of drawn metal wires, comprising a press having clamping jaws which during use of the device support a layer of steel wool, wrapped around the wire rod, thereby pressing it against the wire rod as it advances between the jaws themselves, in such a way as to remove the oxide particles externally coating the underlying metal, holding the steel wool layer to prevent it from being tugged by the wire rod itself; operating elements which support the jaws and which are slidingly guided one with respect to the other transversely to the line of advance of the wire rod; and means for driving the operating elements able to allow to tighten or to move mutually away the jaws with respect to the line of advance of the wire rod.
  • a device is already known from document IT 01.266.365 (EP-A-0 630 697) in the name of the same Applicant.
  • the device recalled above has proven itself to be particularly advantageous thanks to the fact that it combines the advantages of a reduced influence on the natural environment, characteristic of mechanical methods, with numerous other advantages, among them a considerable simplicity of construction, low plant costs, low operating costs, a practically nil ratio of tooling costs per unit of product, a consistent cleaning quality, regardless of the quantity of wire rod being processed.
  • anchoring in addition to being entrusted to the natural microporosities of the metal which characteristically presents a rough, orange peel-like surface, is entrusted to a series of parallel scratches, obtained longitudinally to the wire rod, by the removal of material effected by the steel wool.
  • the object of the present invention therefore is to solve the problems mentioned above. According to the invention this object is attained by a device for mechanical cleaning of the wire rod, of the type indicated in the preamble to claim 1, wherein the jaws which clamp the steel wool on the wire rod are adapted to rotate around the line of advance of the wire rod which advances between the jaws.
  • Such a characteristic allows to obtain on the outer surface of the wire rod helicoidal grooves which, with the same longitudinal development of the wire rod increase the length of the scratches extending correspondingly the anchoring areas of the lubricant.
  • the device according to the invention through the variation of the rotating speed of the jaws, for the same speed of advance of the wire rod, in the device according to the invention it is possible to increase or decrease, as needed, the pitch of the helicoidal scratches allowing an actual control of the mechanical forming of the anchoring areas of the lubricant.
  • the invention relates to a device 1 for mechanical cleaning of iron wire rod 2, employed in particular for the production of metal wires by means of drawing.
  • the device 1 essentially comprises ( Figures 1, 2 and 3) a press 3 coaxial with, and revolving around, a line of advance 2a along which the wire rod 2 advances with continuous motion, in a way known in the prior art, towards a drawing plant located downstream and not shown since it does not interest the invention.
  • the press 3 is provided with jaws 4a,4b for clamping the wire rod 2 supported by operating elements 6a,6b borne by a cylindrical body 14 internally hollow (see also Figure 4) which is axially crossed by the wire rod 2 and is rotatively mounted on a casing 18 which supports the cylindrical body 14 itself in correspondence with its own opposite ends, by means of related rolling supports 19.
  • the operating elements 6a,6b of the press 3 ( Figures 1 and 2) together with the related jaws 4a,4b, are actuated by a plurality of plane metal plates in mutual assembly.
  • the plates individually present essentially rectangular lengthened shape and are provided with a part crossed by an ample polygonal opening 16 which identifies the jaws 4a,4b which, in turn, present closed annular conformation and bear in particular "V" shaped operative surfaces 8a,8b.
  • the plates are housed in the cylindrical body 14 moving through prismatic guides 15 obtained in the cylindrical body 14 itself and oriented radially thereto. They are also set side by side, and are assembled in mutual succession in order to form opposite and monolithic plate packs 11, wherein individual plates are stacked longitudinally to the wire rod 2 and are held together by pairs of cylindrical rods 12 which cross the plates of each pack 11 and which are provided at their ends with arresting bolts 13.
  • each of the packs 11 succeed each other along the direction of advance 2a of the wire rod 2 alternating in an orderly manner with the corresponding plates of the opposite pack 11 in such a way as to make the overall jaws 4a,4b of the press 3 able mutually to penetrate within each other; jaws 4a,4b which by virtue of the "V" conformation of the operative surfaces 8a,8b of the individual plates surround in combination with each other the wire rod 2 for its entire length of crossing of the press 3.
  • the operating elements 6a,6b of the press 3 and of the jaws 4a,4b integral and monolithic therewith are slidingly movable within the guide 15 of the cylindrical body 14 and can slide one with respect to the other in a direction transverse to the line of advance 2a of the wire rod 2, and in the two senses of such transverse direction with opposing motions.
  • the driving means 7 of the operating elements 6a,6b comprise a pulley 19, integral with the cylindrical body 14, and a motor 20 operatively connected by a transmission belt 21 which transmits to the cylindrical body 14 a rotation around the line of advance 2a of the wire rod 2.
  • the operating elements 6a,6b of the press 3 are subjected to centrifugal forces which, directed radially to the cylindrical body 14, tend to move the operating elements 6a,6b away from each other and consequently clamp the jaws 4a,4b against the wire rod 2 interposed thereto (as shown in Figure 3).
  • the operating elements 6a,6b instead remain motionless maintaining the ability to float freely within the guides 15 of the cylindrical body 14.
  • the device 1 also comprises means 10 for synchronising the relative sliding motion of the jaws 4a,4b with respect to the wire rod 2.
  • Such synchronisation means more in particular comprise a wheel 10a externally toothed, supported coaxially and externally to a bush 21 for centring the wire rod 2, and racks 10b,10c which mesh bilaterally with the gear wheel 10a and which, being integral respectively with the jaws 4a,4b of the press 3, allow to move the jaws 4a,4b away or nearer by rigorously identical quantities with respect to the line of advance 2a of the wire rod 2.
  • the operation of the device 1 which can be described with reference to Figure 3, entails placing between the jaws 4a,4b of the press 3 a layer 5 of steel wool which is wrapped manually around the wire rod 2.
  • the motor 20 is started which, through the transmission belt 7 makes the cylindrical body 14 rotate around the line of advance 2a with a pre-set angular velocity.
  • centrifugal forces which place in motion the operating elements 6a,6b which translate in radial direction to the cylindrical body 14 moving away from each other until their slide is stopped by the contact of the jaws 4a,4b with the wire rod 2.
  • the annular conformation of the jaws 4a,4b allows to press the steel wool against the wire rod 2 advancing between the jaws 4a,4b themselves allowing to impart on the wire rod 2 a tangential force suitable for removing the oxide externally coating the underlying metal, and able to retain at the same time the steel wool layer 5 preventing it from being removed from the press 3 as a consequence of the tugging action effected by the wire rod 2.
  • the rotating motion of the press 3 around the line of advance 2a together with the clamping force of the jaws 4a,4b allows the steel wool layer 5 to cut into the surface of the wire rod 2 making helicoidal scratches therein which are more or less inclined with respect to the line of advance 2a depending on the ratio between the speed of advance of the wire rod 2 and the velocity of rotation of the cylindrical body 14 of the press 3.
  • the invention thus fully attains the purposes described above and further presents the possibility of allowing to modulate the control of the density of the scratches to be made on the unit of length of the wire rod 2 simply through the modulation of the velocity of rotation of the press 3. It should also be noted that the device 1 presents high characteristics of intrinsic safety for the operator during the operations for setting the steel wool layer 5. It also has the additional advantage of a certain simplicity of construction which ensures a high operating reliability and low construction and operating costs.
  • the structure of the device 1 into packs 11 of plates lastly allows to construct modular devices 1 wherein simply by varying the number of plates comprising the individual packs 11 it is possible to increase or reduce the mechanical cleaning capacity according to specific needs.
  • the invention thus conceived can be subject to numerous modifications and variations, without thereby departing from the scope of the invention as defined in the appended claims. Moreover, all components may be replaced with technically equivalent elements.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Extraction Processes (AREA)
  • Wire Processing (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Laminated Bodies (AREA)

Claims (9)

  1. Vorrichtung (1) zur Reinigung von Draht (2) zur Herstellung von gezogenen Metalldrähten, umfassend eine Presse (3) mit Spannbacken (4b, 4b), die eine um den Draht (2) herum gewickelte Stahlwollschicht (2) abstützen, indem sie diese gegen den zwischen den Spannbacken (4a, 4b) vorrückenden Draht (2) drücken und sie festhalten, um deren Mitnahme seitens des Drahtes (2) zu vermeiden; Arbeitselemente (6a, 6b), welche die Spannbacken (4a, 4b) abstützen und zueinander quer zur Vorrücklinie des Drahtes (2) gleitend geführt sind; und Betätigungsmittel (7) der Arbeitselemente (9a, 6b), um die Spannbacken (4a, 4b) gegenüber der Vorrücklinie des Drahtes (2) gegenseitig zu spannen oder zu entfernen, dadurch gekennzeichnet, dass die Spannbacken (4a, 4b) schwenkbar um die Vorrücklinie des Drahtes (2) angepasst sind.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Spannbacken (4a, 4b) Arbeitsflächen (8a, 8b) aufweisen, die in gegenseitiger Aufeinanderfolge zum die Presse (3) durchlaufenden Draht (2) ausgebildet sind.
  3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Betätigungsmittel (7) dazu ausgelegt sind, die Spannbacken (4a, 4b) in Anschlag am Draht (2) mit Kräften zu spannen, die im Sinne einer Auseinanderbewegung der Arbeitselementen (6a, 6b) gerichtet sind.
  4. Vorrichtung nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die Betätigungsmittel (7) dazu ausgelegt sind, um den Arbeitselementen (6a, 6b) eine derartige Drehung um den Draht (2) herum aufzuerlegen, dass Zentrifugalkräfte eingeleitet werden, die Spannbacken (4a, 4b) am Draht (2) spannen.
  5. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass sie konzentrierte Massen (9a, 9b) umfasst, die an den Spannbacken (4a, 4b) festliegen.
  6. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass sie Gleichlaufmittel (10) der Gleitbewegung bezüglich der zur Vorrücklinie des Drahts (2) querliegenden Spannbacken (4a, 4b) umfasst.
  7. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, dass die Gleichlaufmittel (10) ein Rad (10a) mit Außenzahnung umfassen, das koaxial zur Vorrücklinie des Drahtes (2) gelagert ist, und Zahnstangen (10b, 10c), die mit dem Zahnrad (10a) kämmen und gegenüber den Spannbacken (4a, 4b) der Presse (3) festliegen.
  8. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass sie mindestens drei Spannbacken (4a, 4b) umfassen, die aneinandergereiht sind und längs des Drahtes (2) aufeinanderfolgen, wobei sie sich geordnet die eine gegenüber der anderen abwechseln.
  9. Vorrichtung nach Anspruch 8, dadurch gekennzeichnet, dass sie eine Vielzahl von Spannbacken (4a, 4b) umfasst, die jeweils in Pakete (11) mit einer längs der Vorrücklinie des Drahtes (2) ausgerichteten Stapellänge besitzen.
EP98830031A 1998-01-23 1998-01-23 Vorrichtung zur Reinigung von Draht für die Herstellung von gezogenen Metalldrähten Expired - Lifetime EP0931601B1 (de)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP98830031A EP0931601B1 (de) 1998-01-23 1998-01-23 Vorrichtung zur Reinigung von Draht für die Herstellung von gezogenen Metalldrähten
AT98830031T ATE226489T1 (de) 1998-01-23 1998-01-23 Vorrichtung zur reinigung von draht für die herstellung von gezogenen metalldrähten
DK98830031T DK0931601T3 (da) 1998-01-23 1998-01-23 Indretning til mekanisk rensning af valsetråd til produktion af trukne metaltråde
DE69808879T DE69808879T2 (de) 1998-01-23 1998-01-23 Vorrichtung zur Reinigung von Draht für die Herstellung von gezogenen Metalldrähten
PT98830031T PT931601E (pt) 1998-01-23 1998-01-23 Dispositivo para a limpeza mecanica de fio laminado destinado a producao arames metalicos estirados
ES98830031T ES2185136T3 (es) 1998-01-23 1998-01-23 Dispositivo para la limpieza mecanica de alambron para la produccion de alambres metalicos trefilados.
SI9830315T SI0931601T1 (en) 1998-01-23 1998-01-23 Device for mechanical cleaning of wire rod for the production of drawn metal wires

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP98830031A EP0931601B1 (de) 1998-01-23 1998-01-23 Vorrichtung zur Reinigung von Draht für die Herstellung von gezogenen Metalldrähten

Publications (2)

Publication Number Publication Date
EP0931601A1 EP0931601A1 (de) 1999-07-28
EP0931601B1 true EP0931601B1 (de) 2002-10-23

Family

ID=8236523

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98830031A Expired - Lifetime EP0931601B1 (de) 1998-01-23 1998-01-23 Vorrichtung zur Reinigung von Draht für die Herstellung von gezogenen Metalldrähten

Country Status (7)

Country Link
EP (1) EP0931601B1 (de)
AT (1) ATE226489T1 (de)
DE (1) DE69808879T2 (de)
DK (1) DK0931601T3 (de)
ES (1) ES2185136T3 (de)
PT (1) PT931601E (de)
SI (1) SI0931601T1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITRN990037A1 (it) 1999-12-23 2001-06-23 Lisciani Trafilerie Srl R Dispositivo per pulitura meccanica di vergella per fili metallici profilati
DE10334492A1 (de) * 2003-07-29 2005-02-24 Meier Technische Beratungen Gmbh Frau Anita Meier Vorrichtung zum Reinigen und Polieren von Drahtoberflächen sowie zur Verbesserung der Drahtqualität für die Weiterverarbeitung
CN102974718B (zh) * 2012-12-06 2014-12-17 江苏永鼎股份有限公司 一种金属加强件表面高效处理装置
FR3057473A1 (fr) * 2016-10-18 2018-04-20 Compagnie Generale Des Etablissements Michelin Nettoyage de fils metalliques par systeme centrifuge a lames
PL3890901T3 (pl) * 2018-12-03 2022-10-31 Lisciani Technologies S.R.L. Urządzenie do mechanicznego czyszczenia walcówki do wytwarzania ciągnionych drutów metalowych
CN114798806B (zh) * 2022-05-25 2023-01-06 宁波日高金属精线材料有限公司 一种金属线材氧化皮拉拔酸洗工艺

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH251466A (it) * 1946-07-01 1947-10-31 Salvi Carlantonio Macchina per il decapaggio meccanico di laminati e trafilati.
NL77710C (de) * 1948-10-18
US3081524A (en) * 1957-05-17 1963-03-19 Westinghouse Electric Corp Scale breaking apparatus for drawn wire
DE3821362C1 (en) * 1988-06-24 1989-05-03 Benteler Ag, 4790 Paderborn, De Apparatus for smoothing a mandrel bar
IT1266365B1 (it) * 1993-05-21 1996-12-27 Lisciani Trafilerie Dispositivo statico per pulitura meccanica della vergella nelle linee di trafilatura di fili di acciaio.

Also Published As

Publication number Publication date
ES2185136T3 (es) 2003-04-16
PT931601E (pt) 2003-03-31
DK0931601T3 (da) 2003-02-17
SI0931601T1 (en) 2003-04-30
DE69808879D1 (de) 2002-11-28
DE69808879T2 (de) 2003-06-05
ATE226489T1 (de) 2002-11-15
EP0931601A1 (de) 1999-07-28

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