EP2424689B1 - Appareil pour compenser les variations de tension dans un cordon de matière en mouvement et/ou pour ajuster ladite tension - Google Patents

Appareil pour compenser les variations de tension dans un cordon de matière en mouvement et/ou pour ajuster ladite tension Download PDF

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Publication number
EP2424689B1
EP2424689B1 EP10719295.7A EP10719295A EP2424689B1 EP 2424689 B1 EP2424689 B1 EP 2424689B1 EP 10719295 A EP10719295 A EP 10719295A EP 2424689 B1 EP2424689 B1 EP 2424689B1
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EP
European Patent Office
Prior art keywords
tension
adjusting
path
dancer roller
strip
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.)
Active
Application number
EP10719295.7A
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German (de)
English (en)
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EP2424689A1 (fr
Inventor
Klaus Schmitz
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.)
Otto Junker GmbH
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Otto Junker GmbH
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Filing date
Publication date
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Publication of EP2424689A1 publication Critical patent/EP2424689A1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/16—Registering, tensioning, smoothing or guiding webs longitudinally by weighted or spring-pressed movable bars or rollers
    • 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
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/003—Regulation of tension or speed; Braking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/18—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
    • B65H23/188—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in connection with running-web
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/20—Location in space
    • B65H2511/21—Angle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/173—Metal

Definitions

  • the invention relates to a device for compensating Werbergankept and / or for adjusting the tension on a funded flexible metallic strand of material, in particular a metal strip, with at least one of the strand of material wrap around the movable dancer roll, wherein the at least one dancer roll along a trajectory inclined to the vertical web is displaced and wherein the inclination angle of the web is adjustable by means of an adjusting unit.
  • a dancer roll arrangement comprises a roll integrated in the strip line of a strip treatment plant and capable of being acted upon by a certain force, which forms a loop in the strip whose loop length changes with the position of the roll.
  • This mobility can compensate for short-term fluctuations of the strip tension.
  • it may be necessary to move the line from the dancer roll to the strip force applied with thick and wide bands requiring higher forces exerted by the dancer roll on them than delicate, thin bands.
  • the force exerted by the dancer roll on the sensitive tape force must be limited to avoid damage to the tape material.
  • FIGS. 1 to 5 typical dancer roller assemblies known in the art are shown.
  • the present invention seeks to provide a device for compensation of Switzerlandschwankept and / or for adjusting the tension on a funded flexible metallic strand of material, in particular a material strip, which is very simple and thus with little effort into existing Treatment systems for metallic material strands, in particular metal strips integrate. Furthermore, the device should allow the compensation of short-term tensile fluctuations in thick, heavy as well as thin, sensitive strands of material, with a change of material strands during operation with appropriate adjustment of the tension should be easily possible.
  • the object is achieved with a device according to the preamble of claim 1, characterized in that the Verstelleineheit is designed to be controllable during operation.
  • the adjusting unit is designed to be controllable for adjusting the inclination angle of the web, i. a change in inclination can be triggered by a corresponding control command in the automated operation of a treatment plant for the metallic material strands, in particular a strip processing plant. This is particularly advantageous if, during continuous operation of the treatment plant, a change in the material strand takes place, the ends of both strands being stapled to one another.
  • the present invention is based on the idea that by a suitable inclination of the direction of movement of the dancer to the vertical and thus the weight force vector of the dancer a precise adjustment of the web tension during operation without additional, the inertial mass of the arrangement increasing weights and without actuators is enabled.
  • wire or tape-shaped material tapes for transporting goods of various kinds, but also metal cables, wires and the like understood.
  • the dancer roll between two pulleys is arranged so in operation, the flexible metallic strand of material forms a band loop together with the dancer roll.
  • the dancer roll displaceable according to the invention on a path that can be tilted to the vertical, its wrap angle is relatively constant both during the dancer movement along the inclinable path and during an adjustment of the inclination angle can be held, so that the forces exerted on the material strand tensile forces are precisely controlled at any time.
  • the inclinable to the vertical path is linear.
  • a strictly linearly formed path for example a linear guide
  • the inclination angle set to the vertical is precisely maintained irrespective of the dancer roller's current position in the dancer movement, so that the tensile force continuously exerted on the flexible material strand corresponds exactly to the value preset by the choice of the inclination angle of the path equivalent.
  • This can be realized constructively, for example, by the bearing of the dancer roller being guided essentially without friction on a linear guide.
  • Linear motion guides are particularly suitable for this purpose.
  • structurally different type linear guides are here as "linear guides" used, for example, roller guides and rail guides of all kinds as well as sliding guides or air cushion guides or magnetic guides.
  • the axis of the dancer roll may be guided in a linear slot or in a gap between two mutually parallel carriers.
  • the adjusting unit may comprise an electromechanical drive, in particular a spindle drive, or an actuator, in particular a hydraulically or pneumatically operated cylinder, so that the linear guide for adjusting the inclination angle of the web is pivotable about a pivot point.
  • an electromechanical drive in particular a spindle drive
  • an actuator in particular a hydraulically or pneumatically operated cylinder
  • the track inclinable to the vertical can be curved, in particular curved in an arc of a circle, wherein the radius of curvature must be selected to be large in relation to the dancer roller deflection along the curved path.
  • a suitable ratio between radius of curvature and dancer roll deflection is about ⁇ 3: 1.
  • this variant can be realized by using a rocker on which the bearing of the dancer roll is guided, wherein the pivot point of the rocker for adjusting the inclination angle of the web on which the dancer roll is displaceable, in turn displaced.
  • the adjusting unit may comprise an actuator, so that the pivot point of the rocker along a linear, substantially vertically oriented trajectory is displaced.
  • the adjustment unit may comprise an actuator whose kinematics make it possible for the pivot point of the rocker, at the end of which the dancer roll is arranged, to be displaced along a curved, substantially vertically oriented path curve. This trajectory can be predetermined by a further rocker, on which the pivot point is pivotally mounted.
  • the dancer roller When using the dancer roller to adjust the web tension in very heavy flexible metallic material strands that require corresponding tensile forces, it may be appropriate to displace the at least one dancer roll along the path inclinable to the vertical by force of an actuator, in particular a hydraulic or pneumatic cylinder , This opens up the possibility, in addition to the force generated by the dancer roll itself, i. the downgrade force on the tiltable track to generate another force that increases the train. It makes sense to use the actuator when a vanishing tilt angle is selected, i. E. the full weight force acts on the flexible metallic strand of material.
  • an actuator in particular a hydraulic or pneumatic cylinder
  • Another aspect of the present invention relates to a treatment plant for sheet-like metallic material with a device for adjusting the tension and / or for compensation of tension fluctuations in the web-shaped material according to one of claims 1 to 10.
  • the above-mentioned object is procedurally achieved with a method for operating a treatment plant for flexible metallic material strands, in particular metal strips, with a device for adjusting the tension and / or compensation of tension fluctuations in the material strand according to one of claims 1 to 11, characterized in that when changing the material strand during operation of the treatment plant, the adjustment of the tension by adjusting the inclination angle of the web by means of the adjustment takes place.
  • the decisive advantage of the method is that due to the possibility of adjusting the tension during operation of the treatment plant no risk of damage to sensitive material strands due to excessive tensile forces, as in a change from heavy, durable material strands on lighter sensitive strands during operation always an optimal strip tension is set.
  • an optimal strip tension is set.
  • Fig. 1 shows a dancer roll arrangement known from the prior art with a dancer roller 100 arranged between two deflection rollers 110, 120.
  • the belt M in this case a metal belt, which is guided essentially horizontally in a belt treatment system (not shown in detail), is moved out of the horizontal by the deflection roller 110
  • the dancer roll 100 wraps around with a wrap angle in the range of 180 ° and is then led to the vertical slightly inclined to the second guide roller 120, where it is deflected in the horizontal direction.
  • the dancer roll 100 is in the arrangement of Fig. 1 displaceable on a vertically oriented linear guide 130, so that approximately the entire weight of the dancer roller 100 and its storage 110a acts on the metal strip M. This can lead to unacceptably high belt tension, especially for thin and correspondingly sensitive metal bands.
  • Fig. 3 another solution known from the prior art is shown.
  • the force acting on the metal strip M weight of the dancer roller 100 and its storage on the linear guide 130 is compensated by a counterweight 140, wherein the counterweight 140 may be selected such that the resulting acting on the metal strip M tensile force corresponds to the desired value.
  • the problem with this arrangement is that the inertial mass of the dancer roller assembly is correspondingly increased by the counterweight, so that in the compensatory movements of the dancer roller 100, the inertial force of both the dancer roller 100 itself and the counterweight 140 must be overcome. This ultimately leads to short-term fluctuations in the strip tension can not be compensated in a satisfactory manner due to inertia.
  • Fig. 4 shows the dancer roll arrangement Fig. 2
  • the rocker 230 ' is extended beyond the pivot point 240, and a weight 250 along the rocker 230' is displaceable in such a way that it strengthens or attenuates the tensile force exerted by the weight of the dancer roll on the belt M by a corresponding counter-torque.
  • Fig. 5 again shows the dancer roll arrangement Fig. 2 ,
  • an actuator 260 in the form of a hydraulic or pneumatic cylinder on the rocker 230 engages and thus in to Fig. 4 analogous to the on the band M through the dancer roll 200 exerts tensile force exerted or weakens.
  • Fig. 6 is a device for compensating Switzerlandschwankept and for adjusting the tension on web-shaped material present a metal strip M - shown with a displaceable along a tiltable path to the vertical dancer roller 2 in a first embodiment.
  • the metal strip M is guided for this purpose around a deflection roller 3 and then forms with the dancer roller 2 a belt loop with a wrap angle in the range of 180 °, before it is deflected again via another roller 1.
  • the deflection takes place in a direction inclined to the horizontal direction. It is understood, however, that a deflection in the horizontal or in another direction is also possible.
  • the inclinable orbit of the device Fig. 6 is presently designed as a linear guide 4, on which the dancer roll by means of a subframe 2a, on which the bearing blocks of the dancer roll are arranged, can be moved substantially without friction.
  • the linear guide 4 can be pivoted to adjust the inclination angle ⁇ about a pivot point X by means not shown in detail, an electromechanical drive, in particular a spindle drive, comprehensive adjustment.
  • the angle of inclination ⁇ for the linear unit 4 is set such that the resulting tensile force F z corresponds to the required value.
  • the adjusting unit is designed to be controllable. This means that when changing the strip thickness or - width - here are the ends of different thicknesses or broad bands stapled together - on a control command of the general machine control out the appropriate adjustment of the strip tension by changing the inclination of the linear guide 4 during operation of a strip processing plant (see. Fig. 9 ).
  • Fig. 8 is a further device for compensation of Switzerlandschwankept and / or for adjusting the tension on a metal strip in a second embodiment shown.
  • the dancer roller 2 can not be moved without friction along a linear unit, but is suspended on a rocker 6 whose length is chosen to be large compared to the adjustment of the dancer roller 2, so that the deflections of the dancer roller 2 in operation of the device to a good approximation linear are.
  • a suitable ratio between radius of curvature and dancer roll deflection is about ⁇ 3: 1.
  • the inclination to the vertical of this quasi linearly deflectable dancer roll 2 can now be adjusted again to exert the desired strip tension on the metal strip M.
  • the suspension of the rocker ie its fulcrum, along a predetermined trajectory by means of an adjustment unit, not shown, movable.
  • Fig. 8 are two differently set inclination angle ⁇ , ⁇ 'shown.
  • the subframe 6a of the rocker 6 is moved to a lower position A, which has a comparatively small angle ⁇ ⁇ 30 ° equivalent.
  • the subframe 6a of the rocker 6 is moved into an upper position B by means of an adjusting drive of the adjusting unit, which corresponds to an enlarged angle ⁇ ' ⁇ 50 °.
  • a treatment plant for metallic bands with a device according to Fig. 6 shown.
  • the metal strip M for example a copper or copper alloy strip
  • the band M is deflected on the roller 3 and forms with the dancer roller. 2 a sling, with the dancer roll 2 in connection with Fig. 6 described manner along a to the vertical by the angle ⁇ by means of an activatable by the general machine control adjustment (not shown) tiltable web.
  • the metal strip is deflected by a further roller 1 back into the horizontal and finally wound up by a second roller 10.
  • the general machine control sends a corresponding control command to the adjustment unit for the adjustment of the inclination angle ⁇ of the tiltable track, whereupon this adapts the inclination angle ⁇ accordingly, so that the dancer roller 2 always exerts an optimal strip tension on the metal strip M.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Claims (12)

  1. Dispositif destiné à compenser des variations de traction et / ou à régler la tension de traction dans un tronçon de matériau métallique, flexible (M), en mouvement, en particulier dans un ruban métallique, avec au moins un rouleau fou (2), mobile, autour duquel le tronçon de matériau peut s'enrouler, sachant que le rouleau fou (2) au moins prévu peut être déplacé le long d'une voie inclinable verticalement (4) et l'angle d'inclinaison (ϕ) de la voie (4) pouvant être réglé au moyen d'une unité de réglage,
    caractérisé en ce que
    l'unité de réglage peut être commandée pendant le fonctionnement.
  2. Dispositif selon la revendication 1,
    caractérisé en ce que
    le rouleau fou (2) est disposé entre deux rouleaux de renvoi (1, 3) de telle sorte que, pendant le fonctionnement, le tronçon de matériau métallique, flexible (M) forme, en coopération avec le rouleau fou (2), une boucle de cordon.
  3. Dispositif selon la revendication 1 ou 2,
    caractérisé en ce que
    la voie inclinable verticalement (4) est linéaire.
  4. Dispositif selon la revendication 3,
    caractérisé en ce que
    le support du rouleau fou (2) est guidé sensiblement sans friction sur un système de guidage linéaire (4).
  5. Dispositif selon la revendication 4,
    caractérisé en ce que
    l'unité de réglage est dotée d'un entraînement électromécanique, en particulier d'un entraînement à broche, ou d'un organe de réglage, en particulier d'un cylindre hydraulique ou pneumatique, de telle sorte que le dispositif de guidage linéaire (4) puisse être pivoté autour d'un point de rotation (X) pour le réglage de l'angle d'inclinaison (ϕ).
  6. Dispositif selon la revendication 1 où 2,
    caractérisé en ce que
    la voie inclinable verticalement (4) est courbée, en particulier en forme d'arc de cercle, sachant que le rayon de courbure est choisi grand par rapport à la déviation du rouleau fou (2) le long de la voie courbée.
  7. Dispositif selon la revendication 6
    caractérisé en ce que
    le support du rouleau fou (2) est guidé sur un bras oscillant (6), sachant que le point de rotation du bras oscillant peut être déplacé pour le réglage de l'angle d'inclinaison (ϕ).
  8. Dispositif selon la revendication 7,
    caractérisé en ce que
    l'unité de réglage comprend un mécanisme de commande, de telle sorte que le point de rotation du bras oscillant (6) puisse être déplacé le long d'une trajectoire linéaire (7), qui est orientée sensiblement verticalement.
  9. Dispositif selon la revendication 7,
    caractérisé en ce que
    le point de rotation du bras oscillant (6) peut être déplacé au moyen du mécanisme de commande de l'unité de réglage le long d'une trajectoire curviligne, qui est orientée sensiblement verticalement.
  10. Dispositif selon l'une des revendications 1 à 9,
    caractérisé en ce que
    le rouleau fou (2) au moins prévu peut être déplacé le long de la voie inclinable verticalement (4) sous l'effet d'un actionneur (5), en particulier d'un cylindre hydraulique ou pneumatique.
  11. Installation de traitement pour matériau métallique en forme de bande, qui est doté d'un dispositif destiné à régler la tension de traction et ou à compenser des variations de tension de traction dans le matériau en forme de bande selon l'une des revendications 1 à 10.
  12. Procédé de fonctionnement d'une installation de traitement de tronçons de matériau métallique, flexible (M), en particulier de rubans métalliques, avec un dispositif, qui est destiné à régler la tension de traction et / ou à compenser des variations de tension de traction dans le tronçon de matériau (M) selon l'une des revendications 1 à 10,
    caractérisé en ce que
    lors d'un changement de tronçon de matériau (M) en cours de fonctionnement de l'installation de traitement, l'adaptation de la tension de traction est effectuée par réglage de l'angle d'inclinaison (ϕ) de la voie au moyen de l'unité de réglage.
EP10719295.7A 2009-04-28 2010-04-20 Appareil pour compenser les variations de tension dans un cordon de matière en mouvement et/ou pour ajuster ladite tension Active EP2424689B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009018914A DE102009018914A1 (de) 2009-04-28 2009-04-28 Vorrichtung zur Kompensation von Zugschwankungen und/oder zur Einstellung der Zugspannung an einem geförderten flexiblen Materialstrang
PCT/EP2010/055221 WO2010124969A1 (fr) 2009-04-28 2010-04-20 Dispositif pour compenser des variations de tension et/ou ajuster la contrainte de traction au niveau d'une bande de matériau flexible transportée

Publications (2)

Publication Number Publication Date
EP2424689A1 EP2424689A1 (fr) 2012-03-07
EP2424689B1 true EP2424689B1 (fr) 2013-11-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP10719295.7A Active EP2424689B1 (fr) 2009-04-28 2010-04-20 Appareil pour compenser les variations de tension dans un cordon de matière en mouvement et/ou pour ajuster ladite tension

Country Status (6)

Country Link
US (1) US20120018564A1 (fr)
EP (1) EP2424689B1 (fr)
JP (1) JP2012525261A (fr)
CN (1) CN102413957A (fr)
DE (2) DE102009018914A1 (fr)
WO (1) WO2010124969A1 (fr)

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Also Published As

Publication number Publication date
DE102009018914A1 (de) 2010-11-18
EP2424689A1 (fr) 2012-03-07
CN102413957A (zh) 2012-04-11
WO2010124969A1 (fr) 2010-11-04
DE202009009097U1 (de) 2009-11-05
JP2012525261A (ja) 2012-10-22
US20120018564A1 (en) 2012-01-26

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