EP1952906B1 - Rotor d'une machine à dresser et machine à dresser - Google Patents

Rotor d'une machine à dresser et machine à dresser Download PDF

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Publication number
EP1952906B1
EP1952906B1 EP20080001318 EP08001318A EP1952906B1 EP 1952906 B1 EP1952906 B1 EP 1952906B1 EP 20080001318 EP20080001318 EP 20080001318 EP 08001318 A EP08001318 A EP 08001318A EP 1952906 B1 EP1952906 B1 EP 1952906B1
Authority
EP
European Patent Office
Prior art keywords
rotor
straightening
balancing
straightening rotor
respect
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.)
Not-in-force
Application number
EP20080001318
Other languages
German (de)
English (en)
Other versions
EP1952906A2 (fr
EP1952906A3 (fr
Inventor
Heiner Kudrus
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.)
SMS Schumag GmbH and Co KG
Original Assignee
SMS Schumag GmbH and Co KG
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 claimed from DE102007026728A external-priority patent/DE102007026728A1/de
Application filed by SMS Schumag GmbH and Co KG filed Critical SMS Schumag GmbH and Co KG
Publication of EP1952906A2 publication Critical patent/EP1952906A2/fr
Publication of EP1952906A3 publication Critical patent/EP1952906A3/fr
Application granted granted Critical
Publication of EP1952906B1 publication Critical patent/EP1952906B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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 straightening rotor and a rotor straightener.
  • Such a rotor judge is for example from the US 1,936,679 , of the DE 10 34 576 B or DE 39 10 221 A1 known.
  • a rod or a similar workpiece is guided by a peripheral frame of a straightening rotor and radially deflected by means of some straightening elements such that he or she loses its former curvature and a desired course, preferably a straight course, receives.
  • the straightening rotor after the DE 39 10 221 A1 has three internal other directional elements, but all of which are arranged offset radially. With a central straightening element and two outlet and two inlet-side straightening elements, all of which are mounted in a rotating frame, the straightening rotor works according to the DE 10 34 576 B ,
  • Such rotor straighteners are not to be confused with non-rotating straightening devices, such as those from the DE 195 03 850 C1 or from the DE 43 25 492 A1 are known and in which already a high degree of automation in the adjustment of the straightening elements is achieved, as in these documents and also by Marcus Paech in his article " innovative straightening technique "in wire 2/1999, pages 46 to 51 is set out.
  • the invention proposes on the one hand before a straightening rotor, which is characterized by at least two freely positionable balancing means which are arranged axially with respect to a rotational axis of the straightening rotor substantially symmetrical to a median plane.
  • the balancing means can be oriented substantially mirror-symmetrically with respect to the center plane or substantially point-symmetrically with respect to a center of gravity of the straightening rotor or with respect to a center point of the straightening rotor. While the focus in the present case, the theoretical or actual result of a mass distribution of the straightening rotor in represents an idealized state, the latter represents a calculated size due to the spatial distribution of the straightening rotor. It is understood that deviations from these points can be compensated by the balancing means accordingly.
  • Such a symmetrical arrangement is in itself relatively easy to provide and in particular allows alignment of both the center of gravity and a center of gravity axis to minimize any imbalances and thus to allow maximum speed.
  • the balancing means are effective in the second order, that is to say in particular with respect to the center of gravity axis, which should be alignable in its absolute position and in its direction.
  • the latter can be particularly structurally particularly easy to implement by exactly two balancing means, which are effective in second order accordingly.
  • the balancing means are balancing masses which are displaceable in the circumferential direction.
  • alignment of the center of gravity axis can be realized in a particularly simple and precise manner, which enables a more reliable adjustment especially at high speeds than is possible with prior art arrangements, since centrifugal forces acting on the balancing masses occur during one movement play no role in the circumferential direction.
  • Balancing masses displaceable in the circumferential direction can be realized particularly simply by means of balancing disks, wherein in a particularly simple embodiment such a balancing disk can have a recess asymmetrically with respect to its central axis, so that the center of gravity or the center of gravity axis of the balancing disk deviates from the central axis. With two such balancing disks, the total center of gravity can then be aligned as desired within a maximum radius defined by the mass eccentricity of the balancing disks.
  • Such balancing discs can be adjusted in particular relatively precisely - and, if necessary, even at high speeds - accordingly.
  • the invention proposes a rotor straightener with a straightening rotor according to the invention, which is characterized by a device for measuring unbalance of the straightening rotor.
  • the measuring device is or can be effective during straightening, so that influences that occur during straightening can be detected accordingly.
  • the measuring device detects imbalance second order, so that by appropriate balancing the axis of gravity of the straightening rotor can be optimally aligned.
  • the measuring device can preferably comprise a decoupled measurement evaluation, so that the measurement evaluation can be applied to a plurality of rotor jars. In this way, costs can be saved, whereby possibly even the sensor system can be decoupled.
  • the rotor judge after FIG. 1 has a straightening rotor 1, which rotates about a workpiece 2, which passes through this.
  • the straightening rotor 1 has a frame 4, which is mounted in bearing blocks 5 and carries a total of five straightening elements 6 to 10.
  • the workpiece 2 is bent radially relative to the axis 3 of the straightening rotor 1, while this rotates and it passes through this.
  • straightening elements 7, 8 and 9 as a directional nozzles (not numbered) formed in a conventional manner.
  • advantageous vibrations avoids, vibrations in the embodiment after FIG. 2 avoided by particularly narrow inlet and outlet side directional nozzles, which leave less than 0.2 mm clearance to the workpiece 2.
  • balancing means 20 are provided (numbered example) on the frame.
  • the balancing means are substantially mirror-symmetrically with respect to a center plane (not shown) of the straightening rotor 1, which is perpendicular to the axis 3 and extends in the middle by the straightening element 8, arranged.
  • two balancing means can be provided which can be aligned or positioned freely, in particular independently of the straightening elements.
  • a center of gravity axis can thereby be readily optimized in the desired manner with respect to the axis 3 in the second order.
  • the balancing means 20 are in the embodiments after FIGS. 1 to 3 formed by with respect to the frame 4 rotatable balancing disks 21A to 21D.
  • the disks 21A to 21D have, as in FIG. 4 shown balancing recesses 22, so that the balancing disks 21A to 21D each have eccentric centers of gravity with respect to its outer circumference and its center point 23.
  • the common center of mass m1 or m2 of the balancing disks 21A and 21B or 21C and 21D can be adjusted within a maximum radius.
  • the arrangement of the balancing disks 21A to 21D on both sides of the straightening rotor 1 accordingly permits second-order balancing, so that a center of gravity axis can be readily aligned with respect to the rotation axis 3.
  • the balancing disks 21A to 21D can be provided with scales, in particular during a manual operation, so that the balancing disks 21A to 21D can be adjusted reliably.
  • the balancing wheels 21A to 21D can be coupled to a motor drive, on the one hand fixed, from the outside the balancing discs 21A to 21D act or on the other hand may be provided co-rotating. In this respect, the balancing wheels 21A to 21D rotate about the axis 3 of the straightening rotor, so that they can be displaced, in particular, almost without the action of centrifugal force.
  • the rotor judge declines FIG. 1 a device 30 for unbalance measurement.
  • This includes two sensors 31 and a tachometer 32, which are connected by means of cable 33 with a measurement evaluation 34. By separating the cable 33, the measurement evaluation 34 can be decoupled and made available to other rotor straighteners.
  • the gauge 30 is effective during straightening and detects second order imbalances.
  • the balancing means 20 can be adjusted during rotation, the results of the measuring device 30 can be used directly for balancing, in which case advantageously the measurement evaluation 34 should not be decoupled.
  • an angular position for the manual adjustment of the balancing disks 21A to 21D can also be predefined on the basis of the measurement evaluation.
  • the in the Figures 5 and 6 Straightening machine shown comprises on the one hand a straightening rotor 101 which rotates about a workpiece 102, which passes through this, and on the other hand, a stationary drive 103.
  • the straightening rotor 101 has a frame 104 which is mounted on bearings 105 and carries a total of five straightening elements 106 to 110. Via the straightening elements 106 to 110, the workpiece 102 is bent radially with respect to the axis of the straightening rotor as it rotates and passes through it.
  • the straightening elements 107, 108 and 109 are configured as directional nozzles 115 (numbered as an example), wherein - in particular for the protection of the workpiece at high rotational speeds - these nozzles are roller-mounted.
  • the inlet side and outlet side straightening elements 106 and 110 have one Multi-side guide, which are formed in this embodiment by toroidal rollers 111 (exemplified) with offset axes.
  • a guide with more than two rollers or a guide can be provided on corresponding more multi-sided on the workpiece 2 scenes. It is essential that on the inlet side or outlet side in the present embodiment, a multi-sided guide is provided in order to avoid vibrations of the workpiece, even at high speeds can. Also can be transmitted by tilting the axis feed to the workpiece 102.
  • the straightening elements 106 to 110 are adjustable to the frame.
  • the threaded bolt 112 serves as an actuator and as a fixation for the rollers 111
  • the bolt 113 is used as an actuator for the directional nozzles 115.
  • the threaded bolt 114 causes a distortion of the respective directional nozzle 115 supporting member and the respective threaded bolt 113 and thus serves to fix the straightening elements 107 to 109.
  • a lateral guide and in particular a recording of torques about the axes of the threaded bolts 112, 113 and 114 are not illustrated guide rails with grooves, in which projections 116 (in FIG. 2 exemplarily numbered) sliding intervene.
  • the threaded bolts 114 are first released. Subsequently, the directional nozzles 116 are displaced via the threaded bolt 113 in the desired manner. Finally, the threaded bolts 114 are tightened again and fixed in this way the directional nozzles 116.
  • plates 117 (exemplified quantified) are provided in this embodiment, to compensate for an adjustment caused by the adjustment, which are also in operative connection with the threaded bolt 113 and projections 118 are guided in the aforementioned grooves.
  • the bolts 113 are provided in the region of the plates 117 with a thread whose pitch deviates from the thread pitch of the rest of the bolt.
  • the plates 117 can perform a direction of the nozzles 116 proportional but different strong and / or differently directed movement without a separate drive must be provided.
  • the straightening rotor 101 also has at its ends circumferentially distributed balancing elements 119, which are mounted as threaded bolts in radially directed threaded bores of used as a balancing means 120 side walls of the frame 104 and therefore represent immediately balancing masses. By turning these balancing elements 119 beyond the action of the plates 117 beyond the straightening rotor 101 can be balanced.
  • the threaded holes are arranged substantially point-symmetrically with respect to a center of the straightening rotor (not shown), wherein the center lies in an axis of rotation of the straightening rotor 101 and is located exactly on the middle between the side walls.
  • two balancing means can be provided which can be aligned or positioned freely, in particular independently of the straightening elements.
  • a center of gravity axis can thereby be readily optimized in the desired manner with respect to the axis of rotation.
  • the bolts 112, 113 and 114 and the bolts 119 each have an identical head, which can be brought into engagement with a connecting piece 121 of the stationary drive 103.
  • the connector 121 on the one hand radially along the arrow 130 and a linear actuator 122 axially along the arrow 131 with respect to the rotor axis displaced.
  • the stationary drive 103 between an operating position in which the rotor 101 can rotate freely, and various adjustment and balancing positions in which it is engaged with the respective bolts 112, 113, 114, and 119 engaged.
  • the rotor 101 may present the bolts 112, 113, 114, and 119 to the stationary drive 103 by staying in an appropriate rotational position and being in respective adjustment or balance positions.
  • connection between connector 121 and respective bolt 112, 113, 114, and 119 can be separated by moving the connector 121 along the arrow 130 away from the rotor 101, wherein the movement in the direction of the arrow 130 on the one hand only by the component 123 or but also by moving the linear actuator 122 may be conditional.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Testing Of Balance (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Claims (11)

  1. Rotor dirigé (1 ; 101), caractérisé par au moins deux moyens d'équilibrage (20 ; 120) librement positionnables, qui sont disposés axialement par rapport à un axe de rotation (3) du rotor dirigé (1 ; 101) sensiblement symétriquement par rapport au plan médian du rotor dirigé (1 ; 101).
  2. Rotor dirigé selon la revendication 1, caractérisé en ce que les moyens d'équilibrage (20 ; 120) sont orientés sensiblement symétriquement par rapport au plan médian du rotor dirigé (1 ; 101).
  3. Rotor dirigé selon la revendication 1, caractérisé en ce que les moyens d'équilibrage (20 ; 120) sont orientés sensiblement symétriquement par rapport à un centre de gravité ou par rapport à un centre du rotor dirigé (1 ; 101).
  4. Rotor dirigé selon l'une quelconque des revendications précédentes, caractérisé par des moyens d'équilibrage (20 ; 120) efficaces dans un second ordre.
  5. Rotor dirigé selon la revendication 4, caractérisé par exactement deux moyens d'équilibrage (20 ; 120) efficaces dans un second ordre.
  6. Rotor dirigé selon l'une quelconque des revendications précédentes, caractérisé par des masses d'équilibrage (21A-21D) pouvant être déplacées dans le sens périphérique.
  7. Rotor dirigé selon l'une quelconque des revendications précédentes, caractérisé par des moyens d'équilibrage comprenant au moins deux disques d'équilibrage (21A-21D).
  8. Orientateur de rotor comprenant un rotor dirigé (1 ; 101) selon l'une quelconque des revendications précédentes, caractérisé par un dispositif (30) pour la mesure du déséquilibre du rotor dirigé.
  9. Orientateur de rotor selon la revendication 8, caractérisé en ce que le dispositif de mesure (30) est efficace pendant l'orientation.
  10. Orientateur de rotor selon la revendication 8 ou 9, caractérisé en ce que le dispositif de mesure (30) enregistre des déséquilibres de second ordre.
  11. Orientateur de rotor selon l'une quelconque des revendications 8 à 10, caractérisé en ce que le dispositif de mesure (30) comprend une analyse de mesure (34) pouvant être dissociée.
EP20080001318 2007-02-02 2008-01-24 Rotor d'une machine à dresser et machine à dresser Not-in-force EP1952906B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007006080 2007-02-02
DE102007026728A DE102007026728A1 (de) 2007-02-02 2007-06-06 Richtrotor, Rotorrichter sowie Richtverfahren

Publications (3)

Publication Number Publication Date
EP1952906A2 EP1952906A2 (fr) 2008-08-06
EP1952906A3 EP1952906A3 (fr) 2008-09-03
EP1952906B1 true EP1952906B1 (fr) 2010-06-02

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP20080001318 Not-in-force EP1952906B1 (fr) 2007-02-02 2008-01-24 Rotor d'une machine à dresser et machine à dresser

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EP (1) EP1952906B1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT11798U1 (de) * 2008-03-28 2011-05-15 Progress Maschinen & Automation Ag Rotorrichteinheit zum richten von baustahldraht
IT1398481B1 (it) 2010-02-17 2013-03-01 Schnell Spa Metodo e apparecchiatura per raddrizzare tondini di ferro e simili
WO2016103218A1 (fr) 2014-12-23 2016-06-30 Schnell S.P.A. Appareil pour le redressage d'éléments de forme allongée

Family Cites Families (13)

* 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
DE1034576B (de) 1954-11-16 1958-07-24 Evg Entwicklung Verwert Ges Vorrichtung zum Richten von Draehten
US3335764A (en) * 1965-05-19 1967-08-15 Hugh A Pilling Apparatus for straightening wire
DE2523831C3 (de) 1975-05-30 1978-07-27 Louis, Hans, 5650 Solingen Vorrichtung zum Richten von Draht
JPS6076236A (ja) * 1983-10-04 1985-04-30 High Frequency Heattreat Co Ltd 線材の超高速矯正方法及び回転コマ型線材矯正機
DE3546029C2 (de) 1985-12-24 1997-03-13 Stihl Maschf Andreas Handgeführtes, verbrennungsmotorisch angetriebenes Arbeitsgerät
CH673605A5 (fr) * 1987-10-01 1990-03-30 Schlatter Ag
DE3910221A1 (de) 1989-03-30 1990-10-04 Peddinghaus Carl Ullrich Dr Richtmaschine fuer draht, insbesondere fuer betonstahldraht
DE4311566A1 (de) 1993-04-08 1994-10-13 Peddinghaus Rolf Richtmaschine für Draht
DE4325492A1 (de) 1993-07-29 1995-02-02 Meyer Roth Pastor Maschf Richtmaschine für strang- oder bandförmiges Richtgut
DE19503850C1 (de) 1995-02-06 1996-06-13 Post Friedhelm Sondermasch Nichtrotierender Richtapparat für Biegemaschinen mit integrierter Meßvorrichtung
DE19709733C2 (de) 1997-03-10 2000-04-13 Theis Klaus Vorrichtung zum rotierenden Richten von Draht
DE10391154D2 (de) 2002-04-04 2005-02-24 Schumag Ag Vorrichtung und Verfahren zum Richten von Halbzeug

Also Published As

Publication number Publication date
EP1952906A2 (fr) 2008-08-06
EP1952906A3 (fr) 2008-09-03

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