EP2105219A1 - Unité à dresser de rotor destinée à dresser un fil d'acier de construction - Google Patents

Unité à dresser de rotor destinée à dresser un fil d'acier de construction Download PDF

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Publication number
EP2105219A1
EP2105219A1 EP09003424A EP09003424A EP2105219A1 EP 2105219 A1 EP2105219 A1 EP 2105219A1 EP 09003424 A EP09003424 A EP 09003424A EP 09003424 A EP09003424 A EP 09003424A EP 2105219 A1 EP2105219 A1 EP 2105219A1
Authority
EP
European Patent Office
Prior art keywords
straightening
rotor
unit according
rotor housing
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.)
Withdrawn
Application number
EP09003424A
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German (de)
English (en)
Inventor
Erich Nussbaumer
Karl Friedrich Enderes
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.)
Progress Maschinen and Automation AG
Original Assignee
Progress Maschinen and Automation 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 Progress Maschinen and Automation AG filed Critical Progress Maschinen and Automation AG
Publication of EP2105219A1 publication Critical patent/EP2105219A1/fr
Withdrawn legal-status Critical Current

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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
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F1/00—Bending wire other than coiling; Straightening wire
    • B21F1/02—Straightening
    • B21F1/023—Straightening in a device rotating about the wire axis

Definitions

  • the invention relates to a rotor straightening unit for straightening steel wire, with at least three straightening elements, which are arranged in a rotatably mounted rotor housing with respect to the feed direction of Baudstahldrahtes one behind the other and laterally offset from each other or can be arranged.
  • the present invention is directed to the rotor-straightening technique, in which two basic types of rotor straightening units are used.
  • Rotorricht.en with fixed straightening elements such as directional nozzles or Richtsteinen
  • Rotorricht.en with rotatable straightening elements so-called straightening rollers.
  • Rotor straightening units with rotating straightening rollers have the advantage that they protect the surface of the structural steel wire. If, in this case, the alignment elements are essentially parabolically or hyperbolic about a directionally normal to the longitudinal axis of the rotor straightening unit, the straightening elements configured in this way can simultaneously carry out the longitudinal transport of the same during rotation around the structural steel wire.
  • the rotor straightening unit builds even larger, since the storage of the straightening rollers requires a certain space, while the extremely high speeds required when straightening thin Baustrahldraht to achieve a good straightening result, can not be achieved, Therefore, the diameter range of the structural steel wire, in which a satisfactory result is achieved with such a rotor straightening units, is relatively small.
  • rotor straightening units with rotatable straightening elements have a less precise wire guidance, which is why such straightening rotors are used primarily for machines with low product performance in the middle wire diameter range.
  • rotor straightening units with fixed straightening elements can achieve the extremely high rotational speeds required for thin wire diameters, they have the disadvantage that the surface of the structural steel wire is slightly roughened during the straightening process.
  • the fixed straightening elements are subject to a higher compared to rotatably mounted straightening elements Reibungsverschl debut, which additionally increases when straightening steel wire with a thick wire diameter.
  • the object of the invention is to provide a rotor straightening unit which combines the advantages of the two above-mentioned rotor straightening units and eliminates or at least reduces their disadvantages.
  • a rotor straightening unit in that at least one straightening element is stationary during operation relative to the rotor housing and at least one straightening element is rotatably mounted in the rotor housing.
  • the rotor straightening unit according to the invention with fixed and rotatable straightening elements builds hardly larger than conventional rotor straightening units with exclusively fixed straightening elements, since the rotatably mounted straightening element is arranged in the valley of the straightening arch.
  • the rotor straightening unit according to the invention combines in itself the advantages of the two previously known systems, wherein according to a preferred embodiment of the invention it is provided that the number of straightening elements arranged in the rotor housing is odd, the middle straightening element being rotatably mounted relative to the rotor housing and the two sides of the middle one Straightening element arranged straightening elements are mounted fixed in operation relative to the rotor housing.
  • At least one guide element mounted fixedly in operation relative to the rotor housing is formed by a directional nozzle with a passage opening for the structural steel wire, wherein the passage opening of the directional nozzle advantageously extends substantially parallel to the axis of rotation of the rotor housing ,
  • At least one guide element which is fixedly mounted relative to the rotor housing during operation, comprises a guide block with a guide groove for the structural steel wire is formed, wherein the guide is advantageously formed in cross-section substantially semicircular.
  • an embodiment of the invention provides that at least one rotatably mounted in the rotor housing straightening element is formed by a straightening roller.
  • the straightening roll has an inwardly curved lateral surface.
  • the straightening roller may be formed, for example, as a rotation body with an anticlastic surface, wherein trained as Rotationshyperboloiden straightening rollers have been found to be particularly suitable.
  • a particularly gentle material straightening the steel wire can be achieved according to a further embodiment of the invention, if in the feed direction of the steel wire behind a directional nozzle a straightening roller and then turn a directional nozzle is arranged, where it does not matter, whether before and after a straightening each exactly one straightening element or a group of several straightening elements is arranged.
  • a basic idea of the invention is to equip a rotor straightening unit with both fixed and rotatable straightening elements, wherein a rotatably mounted straightening element is arranged between two fixed straightening elements, whereby a rotor straightening unit is created with which high speeds are driven on the one hand due to their compact construction can and on the other hand due to the central, rotatably mounted straightening element on which the greatest pressure occurs during straightening, protects the surface of the structural steel wire.
  • the rotor straightening unit according to the invention is therefore suitable both for structural steel wires with large and small diameter and therefore versatile.
  • the thickness of the steel wire to be straightened u.a. also the number of fixed straightening elements required, i. In thin mild steel wires, it has been found in practice to be beneficial if at least two fixed straightening elements are arranged before and after the central, rotatably mounted straightening element, while in structural steel wires with thick diameters, the arrangement of only one fixed straightening element before and after the middle rotatable straightening element is sufficient to achieve a satisfactory straightening result can.
  • At least one of the straightening elements is arranged variably adjustable relative to the rotor housing in its relative position, wherein it has proved to be advantageous if all straightening elements are arranged variably adjustable in their relative position relative to the rotor housing.
  • a further embodiment of the invention provides that the change in position of the (the) straightening elements (s) relative to the rotor housing by means of an adjusting device which comprises an adjusting device according to a preferred embodiment of the invention for each straightening element.
  • the invention further relates to a device for straightening structural steel wire, wherein the structural steel wire is aligned over a guideway, with a rotor straightening unit according to one of claims 1 to 15
  • the Fig. 1a shows a rotor straightening unit 1 according to the prior art, in which the rotor housing 3 between two bearing blocks 11 of a drive shaft 12 moves about the longitudinal axis D of the rotor housing 3 is rotatably mounted.
  • five guide elements 5 in the rotor housing 3 are arranged behind one another and offset laterally relative to one another in such a way that the steel wire 2 to be straightened passes through a directional arc B as it passes through the rotor housing 3.
  • the straightening elements 5 are rotatably mounted in the rotor housing 3 relative to this about its axis of rotation d.
  • Such a rotor straightening unit 1 which is also referred to as parabolic or hyperbolic Richtrotorü protects, as already mentioned above, the surface of the steel wire 2, but due to the compelling arrangement of the rotatable straightening elements 5 on both sides of the steel wire 2, a correspondingly large rotor housing 3, which negatively affects the acceleration and braking values.
  • the high speed required for mild steel mild steel wires 2 can not be achieved to obtain a satisfactory straightening result.
  • a second known from the prior art rotor straightening unit 1 is shown, which differs from the embodiment according to Fig. 1a differs by the type of directional elements 4 used.
  • the straightening elements 4 are stationary in operation relative to the rotor housing 3 and are of so-called directional nozzles with a passage opening 6 for the structural steel wire 2 (FIGS. Fig. 2b ) educated.
  • a rotor straightening unit can build smaller, which is why the recoverable speeds are much higher than in rotor straightening units according to the embodiment according to Fig. 1a ,
  • the surface of the structural steel wire 2 is easily roughened as it passes through the steel wire 2 during the straightening process.
  • the fixed straightening elements 4 are subject to a much higher friction wear than the rotatable arranged straightening elements 5, in particular in structural steel wires 2 with a thick diameter.
  • Fig. 2a shown straightening element 4 'formed by a guide stone, which has a guide groove 7 for guiding the structural steel wire 2.
  • this guide groove 7 has a semicircular cross-section.
  • a straightening element 4 is formed in the form of a directional nozzle with a passage opening 6 for the structural wire 2.
  • the lateral surface of the passage opening 6 is generally convexly curved, as this approach from the illustration according to Fig. 1b is apparent.
  • This convex design of the lateral surface of the passage opening 6 serves to reduce friction and thus the conservation of the surface of the structural wire 2.
  • FIG. 2c A trained in the form of a straightening straightening element 5 is in Fig. 2c shown.
  • This straightening element 5 has an inwardly curved lateral surface 8 and rotates as it passes by the structural steel wire 2 about the axis of rotation d, which runs essentially normal to the feed direction V of the structural steel wire 2. Due to the concave lateral surface 8 and the rotation of the straightening element 5 about a direction normal to the feed axis d results in a relatively low frictional resistance between the straightening element 5 and the passing structural steel wire 2, whereby the surface of the steel wire 2 is hardly affected during the straightening process.
  • FIG. 3a a first embodiment of a rotor straightening unit 1 according to the invention is shown. The same parts are provided with the same reference numerals, which is why a further detailed description is omitted.
  • the rotor straightening unit 1 according to the invention differs from those in the Fig. 1a and 1b illustrated rotor straightening units 1 according to the prior art, characterized in that in the rotor housing 3 in operation relative to this fixed straightening elements 4 and rotatably mounted straightening elements 5 are arranged.
  • a total of five guide elements 4, 5 are arranged in the rotor housing 3 in such a way that the structural steel wire 2 passes through a directional arc B as it passes through the rotor housing 3.
  • the first, the second, the fourth and the fifth directional element 4 are fixedly disposed in the rotor housing 3 during operation relative to this and are each formed by a directional nozzle, while the central straightening element 5 is rotatably arranged around the rotation axis d in the rotor housing 3 and is formed in the form of a straightening roller.
  • the middle, rotatably mounted straightening element 5 is arranged at the apex S of the directional arch B, so that the main pressure during straightening on this central, rotatably mounted straightening element 5 loads. Since the average straightening element 5 is experienced by the extremely high heat generation three to four times more heavily loaded than the arranged in the beginning and end of the directional arc B fixed guide elements 4, can be at least halved with the inventive arrangement, the wear and friction on steel wire.
  • the rotor straightening unit 1 covers a very large diameter range of mild steel wires 2, wherein thin mild steel wires 2 are directed with all five straightening elements 4, 5, while in mild steel 2 with thick diameters serve the second and fourth straightening element 4 only as a guide for the structural steel wire 2 so that it does not bulge during the straightening process.
  • the straightening of the structural steel wire 2 takes place essentially by means of the first and fifth straightening element 4 and the third straightening element 5. It would even be possible in a rotor straightening unit 1, which is used exclusively for straightening mild steel wires 2 with thick diameters, to the second and completely dispense with the fourth directional element 4.
  • FIG. 3b shown embodiment of a rotor straightening unit 1 according to the invention substantially corresponds to the embodiment according to Fig. 3a
  • it is equipped with an adjusting device 9, by means of which the relative position of the Straightening elements 4, 5 relative to the rotor housing 3, preferably transversely to its longitudinal axis, is variably adjustable provided.
  • the adjusting device 9 for each of the straightening elements 4, 5 has its own adjusting unit 10, which may be formed either manually or automatically adjustable.
  • the actuating units 10 are arranged on opposite sides of a rotor housing 3, resulting in a compact design for the entire rotor straightening unit 1, even if the rotor straightening unit 1 has an automatic adjusting device 9.
  • the unbalance occurring during a rotation of the rotor straightening unit 1 can be kept relatively small by the opposing arrangement of the actuating units 10, so that also in the embodiment according to FIG Fig. 3b relatively high speeds can be driven.
  • Rotorricht.en for straightening steel wire are understood, of course, not in a limiting sense, but just a few examples of numerous ways to realize the inventive idea of a Rotorrichtread with fixed relative to the rotor housing in operation and rotatably mounted in the rotor housing directional elements.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wire Processing (AREA)
EP09003424A 2008-03-28 2009-03-10 Unité à dresser de rotor destinée à dresser un fil d'acier de construction Withdrawn EP2105219A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT4942008 2008-03-28

Publications (1)

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EP2105219A1 true EP2105219A1 (fr) 2009-09-30

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ID=40793141

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09003424A Withdrawn EP2105219A1 (fr) 2008-03-28 2009-03-10 Unité à dresser de rotor destinée à dresser un fil d'acier de construction

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EP (1) EP2105219A1 (fr)
AT (1) AT11798U1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104438961A (zh) * 2014-12-18 2015-03-25 周盈裕 一种拉线的矫直机
CN111570669A (zh) * 2020-05-20 2020-08-25 刘志文 一种盘螺钢矫形修复系统

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1936679A (en) * 1930-07-02 1933-11-28 Jacob T Leech Wire straightening mechanism
DE2411880A1 (de) * 1974-03-12 1975-09-18 Lindemann Hans Richtmaschine fuer strangfoermige werkstuecke
DE19519575A1 (de) * 1994-06-13 1995-12-14 Rockford Mfg Group Drahtrichtmaschine
EP1952906A2 (fr) * 2007-02-02 2008-08-06 Schumag AG Rotor d'une machine à dresser, machine à dresser et procédé de dressage

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1936679A (en) * 1930-07-02 1933-11-28 Jacob T Leech Wire straightening mechanism
DE2411880A1 (de) * 1974-03-12 1975-09-18 Lindemann Hans Richtmaschine fuer strangfoermige werkstuecke
DE19519575A1 (de) * 1994-06-13 1995-12-14 Rockford Mfg Group Drahtrichtmaschine
EP1952906A2 (fr) * 2007-02-02 2008-08-06 Schumag AG Rotor d'une machine à dresser, machine à dresser et procédé de dressage

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104438961A (zh) * 2014-12-18 2015-03-25 周盈裕 一种拉线的矫直机
CN111570669A (zh) * 2020-05-20 2020-08-25 刘志文 一种盘螺钢矫形修复系统
CN111570669B (zh) * 2020-05-20 2021-08-27 河津市宏达特种钢有限公司 一种盘螺钢矫形修复系统

Also Published As

Publication number Publication date
AT11798U1 (de) 2011-05-15

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