EP2177292B1 - Vorrichtung zum Richten und Zuführen von einem halbstarren Materialstreifen in eine Maschine - Google Patents

Vorrichtung zum Richten und Zuführen von einem halbstarren Materialstreifen in eine Maschine Download PDF

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Publication number
EP2177292B1
EP2177292B1 EP09360045A EP09360045A EP2177292B1 EP 2177292 B1 EP2177292 B1 EP 2177292B1 EP 09360045 A EP09360045 A EP 09360045A EP 09360045 A EP09360045 A EP 09360045A EP 2177292 B1 EP2177292 B1 EP 2177292B1
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European Patent Office
Prior art keywords
cam
opening
straightening rolls
closing
strip
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EP09360045A
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English (en)
French (fr)
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EP2177292A1 (de
Inventor
Laurent Boeuf
Marc Aubry
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Dimeco Alipresse SAS
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Dimeco Alipresse SAS
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    • 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
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02—Advancing work in relation to the stroke of the die or tool
    • B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
    • B21D43/08—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by rollers
    • B21D43/09—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by rollers by one or more pairs of rollers for feeding sheet or strip material
    • 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
    • B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
    • B21D1/02—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling by rollers
    • 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

Definitions

  • the present invention relates to a device for straightening and feeding a strip of semi-rigid material in a machine, in particular a metal sheet in a press or the like, the device comprising at least one lower frame carrying a set of rollers lower straighteners, an upper frame carrying a set of upper straightening rollers arranged in staggered relation to the lower straightening rollers, traction means of the material strip arranged upstream and downstream of said straightening roll sets, means for adjusting the straightening rollers; position of the upper straightening rollers with respect to the lower straightening rollers, and opening and closing means of said upper and lower stretches arranged for, in the closed position, to clamp the strip of material between the upper and lower straightening rollers, and in position opening, release the material web constraints of said rectifier rollers.
  • semi-rigid material strip is not limited to a strip itself having a certain width, but also to a wire, a cable, a strand or the like.
  • the invention applies to any type of semi-rigid material and in particular sheet metal.
  • One of the particular applications concerns the work of metal sheets wound in coils, which feed lines of cutting, punching, stamping, folding, etc. to manufacture metal parts for example for the automotive industry.
  • presses or the like fed by a reel of reels, a steel straightener which unrolls the sheet of its reel and straightens it to remove its bending, and a device for stepwise advance of the sheet in the press which alternately holds and releases the sheet according to the advance and cutting cycles of the press.
  • the rectifier and the feed device are separate modules and separated by a sheet supply to ensure continuous operation of the press, or form a single machine , commonly called "straightener-feed", the sheet reserve being located upstream at the reel
  • the invention relates more particularly to this type of machine which combines the straightening of the sheet and the supply of this sheet in the press.
  • This machine has a function commonly called "pinching-out" of the sheet, synchronized with the feeding and cutting cycles of the press.
  • the sheet is clamped between the lower rectifier rollers and the upper rectifier rollers to undergo the straightening operation.
  • the cutting or stamping phase of the sheet in the press it is necessary to release the sheet of its stresses, thus to peel the sheet, to allow its automatic repositioning in the press tool.
  • the stripping function is performed by opening the upper apron in a rotational movement about a pivot axis offset on one side of the aprons in the manner of a jaw, or by lifting the upper apron in a vertical translation movement along specific guide columns.
  • These movements are generated by hydraulic or electromechanical actuators, which necessarily require a power supply to maintain the pinched position.
  • These mechanisms are bulky, complex to implement and very expensive both in need of equipment than in need of energy. Moreover, they generate a strong inertia and are therefore limited in rhythm. They are not suitable for equipping machines already in service. In these machines, the straightening rolls can be carried by a single cradle, which prohibits the individual adjustment of the penetration of each of the rectifier rollers.
  • the present invention aims at overcoming these disadvantages by proposing a "rectifier-feeder” device provided with a “pinching-stripping" function performed by compact, simple, economical, reliable means, generating a very low inertia, so that it can respond to high speeds, not requiring energy to maintain the pinched position, which can be adapted to machines already in use, while allowing a precise and individual adjustment of the penetration of each of the rectifier rollers.
  • the invention relates to a device of the type indicated in the preamble, characterized in that said means for opening and closing said chassis are integrated with said position adjustment means of the upper rectifier rollers, are arranged to move the frame upper relative to the lower frame in a translation movement perpendicular to said frame, and comprise the guide members in vertical translation of said adjusting means.
  • the mechanical means used to add the pinch-out function to a straightening device are optimized by using the vertical translation guide function already present in the position adjustment means of the straightening rollers.
  • the means for opening and closing the frames comprise a lifting module arranged between the upper frame and the upper rectifying rollers, and coupled to at least one mechanism lifting device arranged to move the lifting module, and simultaneously the upper frame and the upper rectifier rollers, in vertical translation between said closing and opening positions and vice versa.
  • the lifting mechanism advantageously comprises at least one cam driven in rotation about a fixed axis of rotation by at least one actuator, this cam cooperating with at least one rolling member secured to said lifting module and having a cam profile arranged to that the closed position corresponds to a stable state of the device and that the open position corresponds to a temporary unstable state of this device.
  • the cam comprises two first flats separated by an angle of about 90 ° and connected by a first substantially circular sector, this cam cooperating with a first upper rolling member and secured to the module lifting, so that the first substantially circular sector defines the unstable opening position of the device and that the first flats form rolling ramps on which runs the upper rolling member between the closed and open positions.
  • This cam advantageously comprises a second flat diametrically opposed to the first substantially circular sector and connected to the first flats by second substantially circular sectors, this cam cooperating with a second lower rolling member, integral with the lifting module and diametrically opposite the body of upper bearing, so that the second substantially circular sectors define the stable closing position of the device.
  • the interval separating the two upper and lower running members integral with said lifting module is advantageously greater than the largest transverse dimension of the cam and provides a clearance defining the opening stroke of said device.
  • the lifting mechanism may comprise at least one control lever articulated on the one hand to the actuator and on the other hand to the fixed axis of rotation of the cam.
  • the lifting mechanism comprises two actuators mounted in opposition on a fixed frame, each actuator being coupled to the fixed axis of rotation of a cam by a control lever, the actuators being mechanically connected to operate in opposition and add up their efforts.
  • These actuators may be chosen from the group comprising a bistable pneumatic cylinder, a servomotor, this list not being exhaustive.
  • the traction means of the material web preferably comprise clean opening and closing means and a central control unit is arranged to simultaneously control the means for opening and closing the chassis. and the means for opening and closing these traction means.
  • the device 1 for straightening and feeding a strip of semi-rigid material 2 in a machine according to the invention, in particular a metal sheet in a press or the like comprises, in a manner known and with reference to the figures, a lower chassis 3 carrying a set of lower rectifier rollers 30, an upper chassis 4 carrying a set of upper rectifier rollers 40 arranged in staggered relation to the lower rectifier rollers 30, traction means 5 of the web of material 2 arranged upstream and downstream of said set of rectifying rollers 30, 40 and adjusting means 6 of the vertical position of the upper rectifier rollers 40 with respect to the lower rectifier rollers 30 having guide members 60 in vertical translation of each upper rectifier roll 40.
  • the lower frame 3 is fixed and constitutes the supporting structure of the entire device 1. It carries a set of four parallel lower straightening rollers, aligned in the same horizontal plane, separated by a regular spacing and driven in rotation by a set of motor pinions 31 meshing with receiving gears 32 provided at one end of each lower rectifier roll 30 (cf. Fig. 5 and 7 ).
  • the upper frame 4 is movable and carries a set of three upper rectifier rollers 40, parallel, separated by a regular spacing equal to that of the lower rectifier rollers 30 but interposed between them.
  • Adjacent lower straighteners 30 is adjustable to adjust the degree of straightening to a given material band.
  • each upper rectifier roll 40 is carried at its two ends by two guide members 60 having bearings and sliding in two housings 61 provided in the lower frame 3.
  • the means of adjustment in position 6 comprise for each upper rectifier roll 40 two threaded rods 62 extending vertically through said upper frame 4 and provided with a lower end 63 in engagement with each guide member 60 and an upper end 64 with an impression to be maneuvered by a suitable tool 65 which can be manual or automatic.
  • the screwing and unscrewing of the threaded rods 62 generates the descent and the rise of the corresponding upper rectifier roll 40.
  • the threaded rods 62 are mechanically coupled by a pinion gear 66 and chain 67.
  • the traction means 5 of the strip of material 2 arranged upstream and downstream of the sets of rectifying rollers 30, 40 comprise in known manner each a fixed lower tractor roll 50 carried by the lower chassis 3, an upper mobile tractor roller 51 by a bearing 52 sliding in a housing 53 of the lower chassis 3.
  • An actuator 54 such as a motor is coupled to at least one of the lower tractor rollers 50, meshing with the driving pinions 32 to rotate the lower rectifier rollers 30.
  • They also include means for opening and closing 55 of the upper tractor roller 51 relative to the tractor roller 50 arranged for the closed position to clamp the strip of material to advance it and in the open position to release the strip of material.
  • These opening and closing means 55 comprise actuators arranged at the right of each end of the upper tractive rollers 51 and controlled by a central control unit (not shown).
  • These actuators are, in the example shown, constituted by cylinders 55 preferably pneumatic whose rod 56 is engaged with the sliding bearing 52, but can be replaced by servomotors or any other known actuator pneumatic, hydraulic or electrical.
  • the device 1 for straightening and feeding a strip of material 2 in a machine comprises means for opening and closing 7 of the upper frame 4 and lower 3 arranged for, in the closed position, to pinch the Band material 2 between the upper and lower rectifier rollers 40, and in the open position, release the material web 2 from the stresses of the straightening rollers 30, 40.
  • These opening and closing means 7 of the frames 3, 4 are controlled by the central control unit (not shown) simultaneously with the traction means 5 to be able to release the material strip 2 from any constraint.
  • the opening and closing means 7 are different from the prior art in that they are integrated with the adjustment means 6 of the position of the upper rectifier rollers 40 and are arranged to move the mobile upper frame 4 and the rectifier rollers. 40 in relation to the lower fixed chassis 3 and lower rectifier rollers 30 in a translation movement perpendicular to said frame 3 and 4. They use the guide members 60 in vertical translation of the adjustment means 6.
  • they comprise a lifting module 70 arranged between the upper frame 4 and the upper rectifying rollers 40, and coupled to a lifting mechanism 71, 72 arranged to move the lifting module 70, simultaneously driving the upper frame 4 and the set of rollers upper straighteners 40, in vertical translation between the closed position corresponding to the clamping function of the stripe of m 2 and the open position corresponding to the stripping function of the material web 2.
  • the lifting mechanism comprises at least one cam 71 and preferably two cams 71 parallel, spaced apart from each other and arranged in the zones d end of the lifting module 70 to distribute the forces.
  • Each cam 71 is rotated about a fixed axis of rotation A by at least one actuator 72, the fixed axis of rotation A and the actuator 72 being carried by a fixed frame 73 extending the lower frame 3.
  • the Actuator 72 is in the example shown constituted by a bistable pneumatic cylinder. Any other actuator 72 may be suitable, for example a servomotor.
  • the lifting mechanism comprises two cylinders 72 mounted in opposition to the fixed frame 73 and mechanically connected to operate in opposition and add up their efforts. More particularly, each jack 72 is mounted on the fixed frame 73 by a hinge pin F and the rods 76 of the two cylinders 72 are interconnected by an assembly of articulated stirrups 77. Each cam 71 is rotated by a control lever 78 coupled on the one hand to the corresponding actuator 72 by a hinge G provided on one of the stirrups 77 and on the other hand to the fixed axis of rotation A of the cam 71.
  • Each cam 71 is disposed between an upper rolling member 74 and a lower rolling member 75, consisting respectively of an upper roller and a lower roller, diametrically opposed and rotatable about integral axes of rotation of the module. 70 and parallel to the fixed axis of rotation of the cam 71.
  • the interval E between the rolling members 74, 75 is greater than the largest transverse dimension D of the cam 71 and provides a clearance which is for example a few millimeters and which defines the opening stroke C of the device 1 (cf. Fig. 2 ).
  • Each cam 71 has a cam profile arranged so that the closed position corresponds to a stable state of the device 1 and the open position corresponds to an unstable temporary state of said device. More particularly, each cam 71 has two first flats 711 separated by an angle of about 90 ° and connected by a first substantially circular sector 712, which cooperate with the upper rolling member 74 secured to the lifting module 70, so that that the first substantially circular sector 712 defines the open position of the device 1 (cf. Fig. 2 ) and that the first flats 711 form rolling ramps on which this upper rolling member 74 circulates between the closed and open positions. In the closed position (cf. Fig. 1 and 3 ), the first flats 711 delimit with the upper rolling member 74 a clearance corresponding to the opening stroke C of the device 1.
  • Each cam 71 also has a second flat 713 diametrically opposed to the first substantially circular sector 712 and connected to the first flats 711 by second substantially circular sectors 714 which cooperate with the lower rolling member 75 integral with the lifting module 70 to define the position stable closure of the device 1.
  • the second flat 713 defines with the lower rolling member 75 a clearance corresponding to the opening stroke C of the device 1.
  • the lifting module 70 is guided in vertical translation both by the guide members 60 of the rollers upper straighteners 40 and the side portions of the fixed frame 73 which are not shown in the figures.
  • the device 1 is in the stable closed position, the material strip 2 is clamped between the lower rectifier rollers 30 and the upper rectifier rollers 40 and undergoes a straightening step during its advance.
  • the jack 72 on the right is in the stable retracted position and the jack 72 on the left in the stable output position, the control levers 78 are oriented to the right and the cams 71 are tangentially supported by their second sector 714 on the lower running gear.
  • 75 now the lifting module 70 in the low position and simultaneously the upper frame 4 and the upper rectifier rollers 40 in the stable position and without energy. In this position, the clearance corresponding to the opening stroke C is situated between the first flat surface 711 corresponding to the cams 71 and the upper rolling members 74.
  • the figure 2 represents the device 1 in unstable and temporary opening position, in which the strip of material 2 no longer advances and is released from the constraints of the rectifier rollers 30 and 40 and can self-center relative to the press tools.
  • the cylinders 72 are in operation and under pressure, the right cylinder is in the partially extended position and the left cylinder in the partially retracted position, the control levers 78 have rotated about 1 ⁇ 4 of a turn in the direction of the leading arrow R1. with them the cams 71.
  • the second sector 714 of the cams 71 leaves the lower rolling members 75, and the first flat 711 of the cams 71 meets the upper rolling members 74 causing the vertical lifting of the lifting module 70 in the up position and simultaneously of the upper frame 4 and the upper rectifier rollers 40, until reaching the first sector 712 of the cams 71 corresponding to the maximum opening stroke C and defining the unstable, temporary and energy-free opening position .
  • the clearance corresponding to the opening stroke C is transferred between the corresponding second flat 713 of the cams 71 and the lower rolling members 75.
  • the figure 3 illustrates the device 1 income in stable closed position, the material strip 2 is again pinched between the lower rectifier rollers 30 and the upper rectifier rollers 40 to continue the straightening step during its advance.
  • the cylinders 72 continued their work in the same direction, the right cylinder being in the stable output position and the left cylinder in the stable retracted position, the control levers 78 continued their rotation about 1 ⁇ 4 turn in the direction of the arrow R2 driving with them the cams 71.
  • the first sector 712 of the cams 71 leaves the upper rolling members 74 which roll on the other first flat 711 of the cams 71 causing the vertical lowering of the module lifting 70 in the low position and simultaneously the upper frame 4 and the upper rectifier rollers 40 until the second sector 714 of the cams 71 meets the lower rolling members 75 corresponding to the stable closed position and without energy.
  • the cylinders 72 are fed in the opposite direction.
  • the angular displacement of the cams 71 is limited to one angle of about 90 ° which is sufficient to generate these cycles. In fact, it is easy to understand that this mechanism has a very fast response time enabling it to reach high cycle rates.
  • the parts, subassemblies and assemblies composing the device 1 according to the invention are produced by reproducible industrial processes.
  • This device 1 is not limited to the straightening of a sheet and the supply of this rectified sheet in a press, but extends to any other application requiring these straightening and feeding functions in any type of machine.
  • the invention achieves the goals.
  • it makes it possible to perform the "pinching / peeling" function grafted onto a straightening machine by means of an optimized mechanism by means of which the clamping function is stable and without energy input.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)
  • Press Drives And Press Lines (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Claims (10)

  1. Vorrichtung (1) zum Richten und Zuführen von einem halbstarren Materialstreifen (2) in eine Maschine, insbesondere von einem Blech in eine Presse oder in eine ähnliche Maschine, wobei die Vorrichtung mindestens ein mit einem Satz unterer Richtwalzen (30) ausgestattetes unteres Gestell (3) beträgt, ein mit einem Satz oberer, in Bezug auf die unteren Richtwalzen (30) versetzt angeordneter Richtwalzen (40) ausgestattetes oberes Gestell (4), den besagten Richtwalzen-Sätzen (30, 40) vor- und nachgeschaltete Zugmittel (5) für den Materialstreifen, Einstellmittel (6) für die vertikale Lage der oberen Richtwalzen (40) in Bezug auf die unteren Richtwalzen (30) bestehend aus Führungsbauteilen (60) für die vertikale Bewegung jeder oberen Richtwalze (40), und Mittel (7) zum Öffnen und Schließen des besagten oberen (4) und unteren (3) Gestells die ausgelegt sind, um in geschlossener Stellung den Materialstreifen (2) zwischen den unteren (30) und oberen (40) Richtwalzen einzuklemmen und, in offener Stellung, den Materialstreifen (2) von der Beanspruchung durch die besagten Richtwalzen (30, 40) zu befreien, dadurch gekennzeichnet, dass die besagten Mittel (7) zum Öffnen und Schließen der besagten Gestelle (3, 4) in den besagten Einstellmittel (6) für die vertikale Lage der oberen Richtwalzen (40) integriert sind, dass sie ausgelegt sind, um das obere Gestell (4) in Bezug auf das untere Gestell (3) in einer zu den besagten Gestellen (3, 4) senkrechten Bewegung zu verschieben, und die Führungsbauteile (60) für die vertikale Bewegung der besagten Einstellmittel (6) betragen.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die besagten Mittel (7) zum Öffnen und Schließen der besagten Gestelle ein zwischen dem oberen Gestell (4) und den oberen Richtwalzen (40) angeordnetes Hebemodul (70) betragen, das an mindestens ein Hebe-Mechanismus (71, 72) gekoppelt ist, welcher ausgelegt ist, um das besagte Hebemodul (70) und gleichzeitig das besagte obere Gestell (4) und die besagten oberen Richtwalzen (40) in einer vertikalen Bewegung zwischen der besagten offenen und geschlossenen Stellung und umgekehrt anzutreiben.
  3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass der besagte Hebe-Mechanismus mindestens eine Kurvenscheibe (71) beträgt, die durch mindestens einen Antrieb (72) um eine feste Drehachse (A) in Drehung angetrieben wird, wobei diese Kurvenscheibe (71) mit mindestens einem an dem besagten Hebemodul (70) befestigten Wälzorgan (74, 75) zusammenarbeitet und ein Kurvenprofil aufweist, das so ausgelegt ist, dass die geschlossene Stellung einem stabilen Zustand der besagten Vorrichtung (1) entspricht, und dass die offene Stellung einem vorübergehenden unstabilen Zustand der besagten Vorrichtung (1) entspricht.
  4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass die besagte Kurvenscheibe (71) zwei erste Abflachungen (711) beträgt, die durch einen Winkel von ca. 90° getrennt sind und durch einen ersten merklich kreisförmigen Sektor (712) verbunden sind, wobei diese Kurvenscheibe (71) mit einem ersten oberen, an dem besagten Hebemodul (70) befestigten Wälzorgan (74) zusammenarbeitet, so dass der besagte erste merklich kreisförmige Sektor (712) die besagte unstabile offene Stellung der Vorrichtung (1) bestimmt und dass die besagten ersten Abflachungen (711) Wälzrampen bilden, auf denen das besagte obere Wälzorgan (74) zwischen der geschlossenen und der offenen Stellung zirkuliert.
  5. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass die besagte Kurvenscheibe (71) eine zweite Abflachung (713) beträgt, die dem besagten ersten merklich kreisförmigen Sektor (712) diametral entgegen gesetzt angeordnet ist und die über zweite merklich kreisförmige Sektoren (714) mit den ersten Abflachungen (711) verbunden ist, wobei diese Kurvenscheibe (71) mit einem zweiten an dem besagten Hebemodul (70) befestigten und diametral dem besagten oberen Wälzorgan (74) entgegen gesetzt angeordneten unteren Wälzorgan (75) zusammenarbeitet, so das die besagten zweiten merklich kreisförmigen Sektoren (714) die besagte stabile geschlossene Stellung der Vorrichtung (1) bestimmen und dass die besagte zweite Abflachung (713) einen Freifahr-Bereich bildet, der den Öffnungs-Hub (C) der besagten Vorrichtung bestimmt.
  6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass der Abstand (E), der die beiden an dem besagten Hebemodul (70) befestigten oberes (74) und unteres (75) Wälzorgan trennt größer ist, als die größte Quer-Abmessung (D) der besagten Kurvenscheibe (71) und ein Spiel festlegt, dass den Öffnungs-Hub (C) der besagten Vorrichtung (1) bestimmt.
  7. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass der besagte HubMechanismus mindestens einen Steuerhebel (78) beträgt, der einerseits an dem besagten Antrieb (72) und andererseits an der besagten festen Drehachse (A) der besagten Kurvenscheibe (71) angelenkt ist.
  8. Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, dass der besagte HubMechanismus zwei auf einem festen Gestell (73) gegenüberstehend montierte Antriebe (72) beträgt, wobei jeder Antrieb (72) über einen Steuerhebel (78) an die feste Drehachse (A) einer Kurvenscheibe (71) gekoppelt ist, wobei die besagten Antriebe (72) mechanisch verbunden sind um gegenläufig zu funktionieren und ihre Kräfte zu addieren.
  9. Vorrichtung nach irgendwelchem der Ansprüche 3 bis 8, dadurch gekennzeichnet, dass der besagte Antrieb (72) in der Gruppe bestehend aus einem bistabilen Pneumatikzylinder, einem Servomotor, gewählt wird
  10. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die besagten Zugmittel (5) für den Materialstreifen (2) eigene Mittel zum Öffnen und Schließen betragen und dadurch, dass die besagte Vorrichtung eine zentrale Steuereinheit beträgt, die ausgelegt ist, um gleichzeitig die Mittel (7) zum Öffnen und Schließen der besagten Gestelle (3, 4) und die Mittel zum Öffnen und Schließen der besagten Zugmittel (5) für den Materialstreifen anzusteuern.
EP09360045A 2008-10-17 2009-10-15 Vorrichtung zum Richten und Zuführen von einem halbstarren Materialstreifen in eine Maschine Active EP2177292B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0805757A FR2937267B1 (fr) 2008-10-17 2008-10-17 Dispositif de redressage et d'amenee d'une bande de matiere semi-rigide dans une machine.

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EP2177292A1 EP2177292A1 (de) 2010-04-21
EP2177292B1 true EP2177292B1 (de) 2011-05-04

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US (1) US20100095727A1 (de)
EP (1) EP2177292B1 (de)
AT (1) ATE507909T1 (de)
DE (1) DE602009001229D1 (de)
FR (1) FR2937267B1 (de)

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EP2177292A1 (de) 2010-04-21
FR2937267A1 (fr) 2010-04-23
US20100095727A1 (en) 2010-04-22
FR2937267B1 (fr) 2010-11-12
DE602009001229D1 (de) 2011-06-16
ATE507909T1 (de) 2011-05-15

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