EP0011612B1 - Dispositif pour formage à froid de fil métallique - Google Patents

Dispositif pour formage à froid de fil métallique Download PDF

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Publication number
EP0011612B1
EP0011612B1 EP19790890049 EP79890049A EP0011612B1 EP 0011612 B1 EP0011612 B1 EP 0011612B1 EP 19790890049 EP19790890049 EP 19790890049 EP 79890049 A EP79890049 A EP 79890049A EP 0011612 B1 EP0011612 B1 EP 0011612B1
Authority
EP
European Patent Office
Prior art keywords
nozzles
metal wire
group
forming rolls
deformation
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
EP19790890049
Other languages
German (de)
English (en)
Other versions
EP0011612A1 (fr
Inventor
Hubert Jeitler
Walter Taschler
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.)
Rista-Drahtwerk Hufnagl & Co GmbH
Original Assignee
Rista-Drahtwerk Hufnagl & Co GmbH
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 Rista-Drahtwerk Hufnagl & Co GmbH filed Critical Rista-Drahtwerk Hufnagl & Co GmbH
Publication of EP0011612A1 publication Critical patent/EP0011612A1/fr
Application granted granted Critical
Publication of EP0011612B1 publication Critical patent/EP0011612B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/16—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section
    • B21B1/163—Rolling or cold-forming of concrete reinforcement bars or wire ; Rolls therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0239—Lubricating
    • B21B45/0245—Lubricating devices
    • B21B45/0248—Lubricating devices using liquid lubricants, e.g. for sections, for tubes
    • B21B45/0257—Lubricating devices using liquid lubricants, e.g. for sections, for tubes for wire, rods, rounds, bars
    • 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

Definitions

  • the invention relates to a device for cold-forming metal wire with at least one group of deformation rollers mounted in a star shape around a deformation opening for the metal wire in a tool holder, wherein a number of nozzles are arranged on the tool holder around the axis of the metal wire, through which a lubricant emulsion is feedable.
  • devices such as are known for example from AT-A-309366, several groups of deformation rollers arranged in a star shape around the deformation opening are e.g. B. three or six deformation rollers in succession acting on the wire to be deformed, causing difficulties with cooling.
  • From FR-E-87530, as well as from DE-A-2362 051 devices of the type mentioned at the beginning are known in which lubricant emulsion is applied to the wire to be deformed via nozzles.
  • the invention has for its object to improve the cooling and lubrication in the aforementioned device for cold forming metal wire and thus to enable higher rates of deformation.
  • This object is achieved in that two groups of deformation rollers are provided, the deformation rollers of one group being offset in relation to the deformation rollers of the other group when viewed in the axial direction of the wire, that the nozzles are aligned such that their spraying directions are directed onto the deformation opening of the group of deforming rollers and are inclined at an angle of 10 ° to 25 ° against the axis of the metal wire, and that the nozzles are arranged so that the rays of the lubricant emulsion between the deforming rollers of the closer group pass through to the more distant group of deforming rollers.
  • the nozzles are arranged around the axis of the metal wire and are directed towards the deformation opening not only improves the cooling and lubrication in the critical area, but it also, since the lubricant emulsion in such an arrangement also hits the wire itself, on the latter adhering mill scale removed and thus achieved an improvement in the surface quality of the deformed wire.
  • the nozzles are only slightly inclined and are inclined at 10 ° to 25 ° to the axis of the metal wire. This slight inclination of the spray directions to the axis of the wire ensures that the lubricant emulsion gets as far as possible into the deformation opening.
  • This slight inclination is advantageous in the arrangement according to the invention, in which the jets of the lubricant emulsion or parts of these jets strike the deformation rollers of the group located nearer between the deformation rollers of the closer group, since with such a slight inclination of the axis of the metal wire, the rays or parts of the beams still strike the deformation rollers of the group located further away in the region of the deformation opening. In this way, it is possible to find sufficiency with a smaller number of nozzles, although the deformation rollers of both groups in the region of the deformation openings are acted upon and cooled with the lubricant emulsion from both sides.
  • individual nozzles can be aimed directly at the space between the deformation rollers of the closer group, or the marginal jets of the lubricant emulsion emerging from the nozzles can hit the deformation rollers of the more distant group, so that the lubricant emulsion emerging from the nozzles is better utilized.
  • nozzles with opposite spray directions are preferably arranged on the sides of the two groups of the deformation rollers facing away from one another, the spray directions of which point towards the deformation opening or openings. In this way, each deformation roller is acted on from two sides in the region of the deformation opening, as a result of which the cooling is further improved.
  • the nozzles can expediently be countersunk in the axial lids of the tool holder.
  • a collecting container for the lubricant emulsion can be arranged below the tool holder with the deformation rollers. From there, the lubricant emulsion can be pumped to the nozzles inside the tool holder after sieving and filtering.
  • the device has two groups 1, 2, each around a deformation opening 3 for the wire 4, which have deformation rollers 15 arranged in a star shape.
  • Each group 1, 2 consists of three deformation rollers 15, which are arranged at angles of 120 ° to each other, only two deformation rollers being shown in the drawing for the sake of clarity.
  • a role group can also more than three, e.g. B. include six deformation rollers 15.
  • the deformation rollers of both groups 1, 2 are mounted in a radially adjustable manner in a tool holder denoted by 5 in a manner which is not explained in more detail here.
  • nozzles 7 are arranged distributed around the axis of the metal wire 4, which are connected via an annular chamber 8 and a bore 9 in the cover 6 to a lubricant emulsion supply line indicated at 10.
  • the spray directions of the nozzles 7 are aligned with the deformation opening 3 of group 1 or 2 of deformation rollers.
  • the rays of the lubricant emulsion emerging from the nozzles 7 arranged on the left in the drawing can largely pass unhindered between the adjacent deformation rollers 2 of deformation rollers 15, which are rotationally offset with respect to the roller group 1.
  • the nozzles 7 located in front of and behind the two groups 1, 2 of deformation rollers 15 are each arranged in the opposite spray direction, all nozzles 7 being only slightly inclined to the axis of the metal wire 4.
  • the tool holder with the deformation rollers is surrounded by a housing 11 with through openings for the metal wire on both sides.
  • a collecting container 12 for the lubricant emulsion is arranged below the tool holder 5 .
  • the axis of the metal wire 4 is surrounded by compressed air nozzles 13 arranged counter to the running direction thereof with a supply device for compressed air indicated at 14 .
  • the compressed air retains the lubricant emulsion within the housing 11.
  • the deformation rollers 15 of the device shown in the drawing are driveless.
  • the wire 4 is pulled through the deformation opening 3 by means of a drawing machine, not shown in the drawing, in a known manner.
  • a drawing machine not shown in the drawing
  • the deformation rollers 15 can be designed in a known manner for processing smooth wire, or with grooves for rolling a profile into the wire.

Landscapes

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

Claims (4)

1. Dispositif pour la déformation à froid d'un fil métallique (4), comprenant au moins un groupe (5) de rouleaux (15) à déformation arrangés en forme d'étoile dans un porte-outil tout autour d'un orifice (3) de déformation, un nombre de buses (7) étant arrangé sur le porte-outil (5) tout autour de l'axe de fil (4) métallique pour amener une émulsion d'un lubrifiant, caractérisé en ce que deux groupes (1 et 2) de rouleaux (15) à déformation sont prévus, les rouleaux(15) à déformation d'un groupe (1 ou 2) étant, vu en direction de l'axe du fil (4), décalés par rapport aux rouleaux(15) à déformation de l'autre groupe, en ce que les buses (7) sont orientées d'une manière que leurs directions d'éjection sont dirigées vers l'orifice (3) de déformation du groupe (1 respectivement 2) de rouleaux (15) à déformation et qu'elles sont inclinées vers l'axe du fil (4) métallique d'un angle de 10° à 25°, et en ce que les buses (7) sont orientées d'une manière que les jets de l'émulsion du lubrifiant débitent à travers et entre les rouleaux (15) à déformation du groupe (1 ou 2) situé plus proche sur le groupe (2 ou 1) de rouleaux (15) à déformation situé plus loin.
2. Dispositif selon la revendication 1, caractérisé en ce que des buses (7) avec des directions d'éjection opposées sont prévues à l'extérieur des groupes (1 et 2) de rouleaux (15) à déformation, les directions d'éjection de ces buses étant dirigées vers l'orifice ou les orifices (3) de déformation.
3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que les buses (7) sont arrangées dans des couvercles (6) axiales du porte-outil (5).
4. Dispositif selon une des revendications 1 à 3, caractérisé en ce que, après la sortie du fil (4) métallique des rouleaux à déformation, l'axe du fil (4) métallique est entouré de buses (13) à air comprimé arrangées en direction opposée à la direction du transport du fil métallique.
EP19790890049 1978-11-14 1979-11-13 Dispositif pour formage à froid de fil métallique Expired EP0011612B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0813178A AT367320B (de) 1978-11-14 1978-11-14 Vorrichtung zum kaltverformen von metalldraht
AT8131/78 1978-11-14

Publications (2)

Publication Number Publication Date
EP0011612A1 EP0011612A1 (fr) 1980-05-28
EP0011612B1 true EP0011612B1 (fr) 1983-02-16

Family

ID=3602837

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19790890049 Expired EP0011612B1 (fr) 1978-11-14 1979-11-13 Dispositif pour formage à froid de fil métallique

Country Status (3)

Country Link
EP (1) EP0011612B1 (fr)
AT (1) AT367320B (fr)
DE (1) DE2964851D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110496864A (zh) * 2019-07-02 2019-11-26 首钢智新迁安电磁材料有限公司 一种冷轧设备及冷轧处理方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU84257A1 (fr) * 1982-07-05 1984-03-22 Lamitref Aluminium Procede de fabrication de fil metallique,fil metallique ainsi obtenu et unite de production utilisee pour appliquer ce procede
DE3914218C2 (de) * 1989-04-27 1994-08-18 Mannesmann Ag Verfahren und Vorrichtung zum Abschrecken eines metallischen langgestreckten, zylindrischen Körpers
AT515603B1 (de) * 2014-04-07 2023-10-15 P & F Maschb Gmbh Drahtziehmaschine und Verfahren zur Herstellung eines gezogenen Drahtes

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB519604A (en) * 1939-01-09 1940-04-01 American Rolling Mill Co Improvements in processes and devices for reducing sheet metal
LU38520A1 (fr) * 1959-04-17
FR1422965A (fr) * 1964-11-16 1966-01-03 Ct De Rech S De Pont A Mousson Procédé perfectionné de fabrication de fils métalliques
DE1813179A1 (de) * 1968-12-06 1970-06-25 Hufnagl Walter Mehrfachrollkopf
DE2362051A1 (de) * 1973-12-13 1975-06-19 Hufnagl Walter Verfahren zum herstellen von bewehrungsstaehlen (bewehrungsstaeben)
GB1528753A (en) * 1976-04-27 1978-10-18 Gkn Somerset Wire Ltd Wiping device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110496864A (zh) * 2019-07-02 2019-11-26 首钢智新迁安电磁材料有限公司 一种冷轧设备及冷轧处理方法
CN110496864B (zh) * 2019-07-02 2022-01-11 首钢智新迁安电磁材料有限公司 一种冷轧设备及冷轧处理方法

Also Published As

Publication number Publication date
EP0011612A1 (fr) 1980-05-28
DE2964851D1 (en) 1983-03-24
AT367320B (de) 1982-06-25
ATA813178A (de) 1981-11-15

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