WO1993013892A1 - Procede de dressage de fils metalliques - Google Patents

Procede de dressage de fils metalliques Download PDF

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Publication number
WO1993013892A1
WO1993013892A1 PCT/GR1993/000002 GR9300002W WO9313892A1 WO 1993013892 A1 WO1993013892 A1 WO 1993013892A1 GR 9300002 W GR9300002 W GR 9300002W WO 9313892 A1 WO9313892 A1 WO 9313892A1
Authority
WO
WIPO (PCT)
Prior art keywords
wire
circular
straightening
holes
grooves
Prior art date
Application number
PCT/GR1993/000002
Other languages
English (en)
Inventor
A. Panagiotis Anagnostopoulos
P. Antonios Anagnostopoulos
Original Assignee
Anagnostopoulos A Panagiotis
Anagnostopoulos P Antonios
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 Anagnostopoulos A Panagiotis, Anagnostopoulos P Antonios filed Critical Anagnostopoulos A Panagiotis
Priority to EP93901874A priority Critical patent/EP0615475A1/fr
Publication of WO1993013892A1 publication Critical patent/WO1993013892A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
    • B21D3/02—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers
    • B21D3/04—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers arranged on axes skew to the path of the work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
    • B21D3/02—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers
    • B21D3/08—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers which move in an orbit without rotating round the work
    • 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 refers to a method for straightening wire of circular cross-section, which is characterised by the progress of wire through successive circular holes, created either on solid bodies (e.g. plates) ( Figure la, lb) or by pairs of cylinders tangential by a straight line parallel to their axes which are able to be driven independently, wherein the holes are formed by opening grooves of se i- circular cross-section on the surface of the cylinders, in a plane vertical to the cyliners' axes, whilst on the contact line between the two bodies, the circular hole (Figure 2) is formed by the two grooves, wherein the bodies bearing the holes (plates) or the cylinder pairs that form holes at their contact points, execute a circular translational motion (Figure la), on a plane vertical to the direction of the wire advancement, resulting to a cyclic-type bending of the wire at its instantaneous contact point with the circumference of the hole, while the wire advancement is achieved either by an external mechanism in the case of the holes on the plates, or
  • the rotor of Figure (3) includes rods (300), one edge of which (301) touches and presses radially the wire to be straightened (303), during the rotation of the rotor, whilst their other edge (302) is secured on the rotor interior.
  • the wire is successively bent by the rod edges (301) and it is finally straightened according to the theory stipulated in paragraph 2 herebelow.
  • the rotor carries interior bushes (406) which rotate along with the rotor body (410) and the wire (405) is forced to pass through those bushes.
  • the geometrical axes of the bushes (407) are parallel to the rotor rotation axis (409), without coinciding with it, and they are located in a distance from the rotor rotation axis, so that during the rotor's rotation the bushes rotate eccentrically in relation to the rotor axis.
  • the wire is forced to pass through said bushes in such a way that their eccentric rotation may bend the wire in a cyclic way as in method (1) hereinabove.
  • the wire of diameter d is subject to bendings ⁇ i for straightening purposes, equal to the number of bushes ( Figure 5) .
  • the axes of symmetry of the straightening bushes are usually parallel to the rotation axis X-X of rotor and located on a plane (E), which is called wire straightening plane.
  • the straightening plane (E) is rotated, as expected, around the rotation axis X-X of rotor, in the direction of rotation ⁇ 2 and at the same frequency as the rotor.
  • the wire has no rotation ⁇ l around this axis, as it is retained by the coil which is originating from, as well as by reversing rollers for the inward and outward advancement of the wire from the rotor.
  • the wire gains speed ⁇ in the direction of axis X-X ( Figure 6) .
  • the respective advancement step on the rotor X-X is: S-Ut -..(2)
  • the internally mounted bushes are supported on ball bearings, in order to be able to rotate about their geometrical axis. This way, the contact and friction between the bushes and the wire to one point of the inner bush is avoided and therefore the increased local wear is also avoided.
  • rollers of a particular exterior surface type are on the rotor interior, which contacts the wire to be straightened at an angle.
  • the external surface of these rollers is formed by one of the conic sections (ellipse, cycle, hyperbola, parabola, intersected straight lines) by their rotation by 360° ( Figure 7).
  • their intersection is a straight line (property of surfaces resulting from rotation, of conic sections).
  • the straightening rollers (801) formed in this way, are secured on the interior of the rotor (802) ( Figure 8) with their geometric axis being at an angle in relation to the rotor rotation axis.
  • the straightening rotor is driven by an independent motor. This way, the straightening machine becomes very bulky.
  • the novelty of the invention consists of the achievement of the method for the straightening of wire of circular cross- section, by the radial bending as in the state-of-the-art methods, but with the following differences:
  • Points ⁇ - and ⁇ 2 of the solid perform simultaneously circular motions - rotations - around the fixed points A and
  • any point ⁇ 3 of solid C ( Figure 9b) performs a circular motion on the same plane, which is proved by the drawing of straight lines A ⁇ and BJ7, being respectively parallel to ⁇ 3 and ⁇ 2 ⁇ 3 and by observing that the triangle ATB is equal to the fixed triangle • Then point r is the fixed rotation centre of ⁇ 3 with
  • the wire is not in touch with the same always area of the inner circle surface.
  • the wire is again in contact with the area of the inner surface of the circular holes ( Figure 14), which is nearest to the axis X-X of the wire and which is considered to be its stable equilibrium position.
  • the areas of the circular holes nearest to the axis X-X change in such a way that during one cylcle for solid C, the wire "sweeps" all the inner surface of the circular hole.
  • Another big difference of the present straightening machine is its capacity to straighten many wires simultaneously, which may be placed at short distances next to the other. This is achieved by installing many straightening rings (holes) on the same solid C
  • the machine has the capability of straightening many wires of different diameter each.
  • Wire advancement without using any external means is accomplished by the synchronised rotation of the two cylinders (20) and (21).
  • This synchronisation is achieved by the use of the gears (26) and (27) which are attached on the cylinders' axes.
  • the rotation of either of those two axes e.g. axis (28) of cylinder (20) provides the wires thrust due to the pressure exerted on them at point by the cylinders.
  • the rotation of shaft (28) by an externally driven shaft (34) may be achieved by different transmission systems, such as:
  • Camshafts (2) and (3) rotate at the same direction, being in synchronisation through the sprockets (4) and (5) and the chain (6) .
  • the sprockets are driven by motor (8) through transmission system (7).
  • Each one of the movable straightening rings (9) is located on each one of the solids (1), whilst the two Tunmovable straightening rings (10) are located on the fixed frame, one being located before the entry point of the wire to the machine and the other being located after the exit point of the wire from the machine.
  • the X-X axis determines the average advancement direction of the wire though the machine and it is the final straight line of the straightened wire.
  • the intersections of the X-X axis with the planes of solids (1) are the centers of rotation of rings' axes (9) during their rotation (11) caused by the motion of solids (1) ( Figure 15a).
  • the movable (9) and immovable (10) rings are located on the rotating wire straightening plane,, and they achieve the straightening of the wire, which is pulled by the rollers.
  • camshafts (2) and (3) Many facilities are provided in the construction of camshafts (2) and (3) , such as:
  • the pairs of the camshafts may rotate either at the same or opposite direction.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wire Processing (AREA)
  • Ropes Or Cables (AREA)

Abstract

Procédé de dressage de fils métalliques à section transversale circulaire, caractérisé par le passage d'un fil dans une succession de trous circulaires formés soit sur des corps solides (par exemple des plaques) (Figure 1a, 1b), soit par des paires de cylindres tangentiels selon une ligne droite parallèle à leurs axes, lesquels peuvent être entraînés indépendamment les uns des autres. Les trous sont formés par des rainures à section transversale en demi-cercle ménagées à la surface des cylindres dans un plan vertical par rapport aux axes de ceux-ci, le trou circulaire (Figure 2) étant formé par les deux rainures au niveau de la ligne de contact entre les deux corps. Les corps portant les trous (plaques), ou les paires de cylindres formant des trous au niveau de leurs points de contact, s'animent d'un mouvement de translation circulaire (Figure 1a) dans un plan vertical par rapport au sens de l'avance du fil, ce qui provoque un fléchissement de type cyclique du fil au niveau de son point de contact instantané avec la circonférence du trou. Par ailleurs, le fil avance sous l'action soit d'un mécanisme extérieur dans le cas des trous ménagés dans les plaques, soit de la rotation coordonnée des paires de cylindres (entraînés par un mécanisme indépendant), et de l'avance du fil dû aux forces de frottement subies par les rainures pendant le mouvement de translation circulaire, et dans le même sens que la rotation des cylindres.
PCT/GR1993/000002 1992-01-21 1993-01-20 Procede de dressage de fils metalliques WO1993013892A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP93901874A EP0615475A1 (fr) 1992-01-21 1993-01-20 Procede de dressage de fils metalliques

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GR920100023 1992-01-21
GR92100023 1992-01-21

Publications (1)

Publication Number Publication Date
WO1993013892A1 true WO1993013892A1 (fr) 1993-07-22

Family

ID=10941012

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GR1993/000002 WO1993013892A1 (fr) 1992-01-21 1993-01-20 Procede de dressage de fils metalliques

Country Status (3)

Country Link
EP (1) EP0615475A1 (fr)
GR (1) GR1001338B (fr)
WO (1) WO1993013892A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102353348A (zh) * 2011-06-28 2012-02-15 中铁建电气化局集团康远新材料有限公司 电气化铁路施工接触线硬点检测及自动校直的方法
WO2016103218A1 (fr) 2014-12-23 2016-06-30 Schnell S.P.A. Appareil pour le redressage d'éléments de forme allongée
CN109351886A (zh) * 2018-11-21 2019-02-19 大连绿云科技有限公司 一种多功能钢筋拉直装置及方法
CN109822009A (zh) * 2019-03-19 2019-05-31 安徽蔚能环保科技有限公司 一种除尘袋笼支架用钢筋调直装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR410237A (fr) * 1909-12-11 1910-05-14 Metallurg De Gorcy Soc Procédé et machine pour le redressage automatique des fils
US2084746A (en) * 1930-09-25 1937-06-22 F B Shuster Company Straightening machine for long stock
GB619463A (en) * 1946-12-12 1949-03-09 Harold John Taplin A new or improved method of and means for straightening metal wire or rod
GB1032127A (en) * 1961-12-12 1966-06-08 Mannesmann Meer Ag Cold-straightening
DE2059145A1 (de) * 1970-12-01 1972-12-21 Bihler Kg Otto Vorrichtung zum Richten von bandfoermigem Material
GB1466638A (en) * 1975-06-23 1977-03-09 Babasov M Device for drawing and straightening cylindrically shaped stock
GB1472024A (en) * 1975-05-08 1977-04-27 Semenenko J Paired-roll straightening machine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR410237A (fr) * 1909-12-11 1910-05-14 Metallurg De Gorcy Soc Procédé et machine pour le redressage automatique des fils
US2084746A (en) * 1930-09-25 1937-06-22 F B Shuster Company Straightening machine for long stock
GB619463A (en) * 1946-12-12 1949-03-09 Harold John Taplin A new or improved method of and means for straightening metal wire or rod
GB1032127A (en) * 1961-12-12 1966-06-08 Mannesmann Meer Ag Cold-straightening
DE2059145A1 (de) * 1970-12-01 1972-12-21 Bihler Kg Otto Vorrichtung zum Richten von bandfoermigem Material
GB1472024A (en) * 1975-05-08 1977-04-27 Semenenko J Paired-roll straightening machine
GB1466638A (en) * 1975-06-23 1977-03-09 Babasov M Device for drawing and straightening cylindrically shaped stock

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102353348A (zh) * 2011-06-28 2012-02-15 中铁建电气化局集团康远新材料有限公司 电气化铁路施工接触线硬点检测及自动校直的方法
WO2016103218A1 (fr) 2014-12-23 2016-06-30 Schnell S.P.A. Appareil pour le redressage d'éléments de forme allongée
CN109351886A (zh) * 2018-11-21 2019-02-19 大连绿云科技有限公司 一种多功能钢筋拉直装置及方法
CN109822009A (zh) * 2019-03-19 2019-05-31 安徽蔚能环保科技有限公司 一种除尘袋笼支架用钢筋调直装置
CN109822009B (zh) * 2019-03-19 2023-10-13 安徽蔚能环保科技股份有限公司 一种除尘袋笼支架用钢筋调直装置

Also Published As

Publication number Publication date
GR1001338B (el) 1993-08-31
EP0615475A1 (fr) 1994-09-21

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