EP1981792B1 - Dispositif de traitement d'une bande de matiere - Google Patents

Dispositif de traitement d'une bande de matiere Download PDF

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Publication number
EP1981792B1
EP1981792B1 EP07711452A EP07711452A EP1981792B1 EP 1981792 B1 EP1981792 B1 EP 1981792B1 EP 07711452 A EP07711452 A EP 07711452A EP 07711452 A EP07711452 A EP 07711452A EP 1981792 B1 EP1981792 B1 EP 1981792B1
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EP
European Patent Office
Prior art keywords
drive
material web
traction mechanism
beams
lower beam
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
EP07711452A
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German (de)
English (en)
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EP1981792A1 (fr
Inventor
Edmund Mundorf
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Individual
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Individual
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Publication date
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Publication of EP1981792A1 publication Critical patent/EP1981792A1/fr
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Publication of EP1981792B1 publication Critical patent/EP1981792B1/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
    • B65H23/26—Registering, tensioning, smoothing or guiding webs longitudinally by transverse stationary or adjustable bars or rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00—Advancing webs
    • B65H20/16—Advancing webs by web-gripping means, e.g. grippers, clips
    • B65H20/18—Advancing webs by web-gripping means, e.g. grippers, clips to effect step-by-step advancement of web

Definitions

  • the invention relates to a device for processing a material web conveyed in a conveying direction, comprising a top bar arranged above the material web and a bottom bar arranged below the material web, which each extend transversely to the conveying direction of the material web and cyclically for processing the material web of at least the upper or lower bar is movable to the plant to each other with the interposition of the material web, wherein a drive is provided for moving upper and / or lower beam.
  • a material web in the context of the invention are in particular film webs made of plastic, laminates, paper and / or parchment webs into consideration.
  • z. B. for transverse welding or cross-cutting of plastic films z. B. in film welding machines for the assembly of plastic film to bags, bags and the like used more.
  • the movable upper and lower beams cause the desired processing of the same with the intermittent position of the web when intermittently merging until it abuts each other, for which purpose they are equipped with appropriate tools.
  • welding bars for welding the material web cutting bars for cutting the material web, punching bars for punching out areas of the material web, embossing bars for embossing the material web or Perforierbalken be provided for perforating the web.
  • An essential feature of the known devices for processing a material web is that upper and lower beams for processing the material web by means of a drive to each other with the interposition of the web are brought to bear and subsequently moved away from each other to release the web and a feed of the web in To allow conveying direction until the next working cycle to edit the same.
  • the drives used so far are usually via crank mechanisms, cam and eccentric drives acting on upper and lower beam strong electric motors, position and servomotors or directly connected to the upper or lower beam linear actuators, such as pneumatic cylinders used.
  • These drives are also inherent that they can be difficult to adapt to changing requirements in terms of contact pressure, residence time on the surface of the web and number of cycles in the case of production changes.
  • a knife folding machine is known, whose arranged above and below a material web folding blade by means of a drive transversely to the conveying direction of the material web are movable.
  • Object of the present invention is to propose an apparatus for processing a material web, which overcomes the disadvantages of the prior art mentioned above and also can be produced in a rational manner beyond.
  • the invention proposes the formation of a device for processing a conveyed in a conveying direction material web according to the features of claim 1.
  • the invention proposes, starting from the known devices, a novel drive for the upper and lower beams, with which the aforementioned disadvantages of the prior art are overcome in a surprisingly simple manner.
  • the drive according to the invention comprises a traction mechanism drive circulating between an upper deflection roller and a lower deflection roller, which is operatively connected to a drive motor and is divided between the deflection rollers into two travels, which necessarily move in opposite directions during movement of the traction mechanism drive. Accordingly, the upper beam is connected to one strand and / or the lower beam to the other strand of the traction mechanism, so that when driving the traction mechanism drive in one direction, the desired movement of the upper and lower beam is directly effected.
  • the upper beam and the lower beam movable i. form opposite to each other, including the upper beam is connected to one strand and the lower beam to the other strand.
  • the upper beam may also be provided to either only perform the upper beam movably and to connect it to a strand, while the lower beam is fixedly held in the device and not connected to a strand, or else the aforesaid configuration is reversed so that the upper beam is fixed and not connected to a strand and the lower beam is made movable and connected to a strand.
  • a fixed upper beam and movable lower beam is e.g. for the production of sealing seams, while the reverse configuration, i. fixed lower beam and movable upper beam e.g. for the processing of laminates with paper backing on the underside, as is advantageous for delivery note bags.
  • the traction drive used in the context of the device according to the invention is not subject to any general constructive restrictions, as long as it is able to transmit the required drive forces as possible without slippage.
  • the traction mechanism drive is designed as a positive traction mechanism drive with a continuously rotating between the pulleys timing belt or an endlessly circulating chain, which are not only inexpensive, but can also reliably transmit the required driving forces.
  • the traction mechanism drive as a frictional traction mechanism drive with corresponding belt or articulated coupling rods attached to the deflection rollers, which in each case form a run of the traction mechanism drive.
  • each a traction drive provided and the respective upper pulleys and lower Pulleys of each traction drive are arranged on respective common shafts, so that they can synchronously transmit the driving forces at both ends of the upper and lower beam at the local attachment points.
  • the upper and lower beam guide columns are preferably provided, wherein the upper and lower beams are guided by means of corresponding slide bushes on the guide columns.
  • the invention is not limited to the formation of such guide columns and bushes, but it can also be selected by the skilled artisan other suitable linear guides for the upper and lower beam.
  • the upper beam and the lower beam have the same masses.
  • the inventive fastening of the upper beam on the one run and the lower beam on the other strand of the traction mechanism is achieved that cancel the respective masses of upper and lower beams on the traction mechanism, so that a load-neutral suspension of upper and lower beams is achieved within the device.
  • the required drive motor for the traction mechanism drive can then be considerably smaller in terms of power than was the case with the known devices, since upper and lower beams can already be moved with low drive forces and high reaction speed owing to the load-neutral suspension.
  • the load-neutral suspension of upper and lower beam also offers the advantage that the applied to the material web during processing defined Anvik devise can be set extremely accurate and repeatable, so that the device of the invention also allows the processing of material webs, the only so far largest Difficulties were workable.
  • the welding of material webs of biopolymers may be mentioned which, due to the extremely narrow temperature window of the biopolymers used, place the highest demands on the accuracy of the device used for this purpose during welding. It has been found in the context of the invention that these requirements of a Inventively designed device can be achieved easily.
  • the device of the invention is characterized by the load-neutral suspension of upper and lower beams by a particularly smooth and smooth running.
  • the drive motor of the device according to the invention comprises a rotating motor, for. B. a three-phase, positioning or servomotor with a downstream eccentric, which converts the rotational movement of the motor into a linear movement and is in operative connection with the traction drive.
  • a rotating motor for. B. a three-phase, positioning or servomotor with a downstream eccentric, which converts the rotational movement of the motor into a linear movement and is in operative connection with the traction drive.
  • the eccentric gear it would also be conceivable to connect a rotating motor directly to the traction mechanism drive, if the rotating motor is a stepping motor which carries out a defined rotation angle.
  • rotating motor is a stepper motor or one with a downstream eccentric gear
  • various modes of operation are available according to the invention which allow different types of film processing.
  • the rotating motor for processing the material web cyclically with a reversing rotational movement can be operated by 90 ° or 180 ° to perform during rotation by 90 ° or 180 ° power strokes of the processing of the material web, which will be explained in more detail below.
  • the rotating motor for processing the material web can be cyclically operable with a rotational movement through 360 ° in order to carry out a working cycle for processing the material web.
  • a rotational movement through 360 ° in order to carry out a working cycle for processing the material web.
  • a linear drive can be provided, which is cyclically actuated in response to the movement of the rotating motor.
  • This linear drive can be operated the same or opposite to the eccentric gear as required.
  • the linear drive which may be formed for example as a pneumatic or hydraulic cylinder, serves to increase the contact pressure of upper and lower beams on the web during processing, while the linear drive in opposite operation to the eccentric gear touching the web prevented by upper and lower beams by the direction of movement of the upper and lower beams is superimposed on each other with an opposite movement, so that a system of upper and lower beams together with the interposition of the material web is prevented in total.
  • Such an operation thus makes it possible to generate controlled dropouts of the processing of the material web in a work cycle, to z. B. in the welding of foil bags only in every second power stroke to make a weld.
  • the drive motor comprises a linear motor which is directly in operative connection with the traction mechanism drive and causes the movement of the upper and lower beams.
  • a control device may be provided, by means of which the drive motor and / or the linear drive can be controlled with variable speed, so that the drive can run in different subsections of a power stroke differently schell and thus in training of upper and lower beam As welding bar a freely adjustable welding time extension can be effected.
  • the apparatus described above with the drive designed according to the invention can not only be designed as upper and lower beams as welding bars, but also comprise cutting bars, punching bars, embossing bars or perforating bars or any other suitable tool for processing the material web.
  • the dwell time or acceleration time can be individually set to all workable materials and can be adjusted by an automatic RESET function z. B. monitored by a subsequent web feed signal and reset in a timely manner to prevent incorrect operation and tearing of the web.
  • the maximum possible dwell or welding time setting is indicated by the machine control.
  • the device for processing a conveyed in a conveying direction F by means not shown conveyors material web 1 is shown.
  • the device comprises two upper and lower beams 2, 3 which can be moved toward one another in clockwise direction in the direction of the arrow P1 or P2 between side parts 7a, 7b FIGS. 1 and 2 shown closed position with the interposition of the material web 1 to each other come to rest, with the upper beam 2 above and the lower beam 3 is below the material web 1 and both the upper beam 2 as well as the lower beam 3 transverse to the conveying direction F of the web 1 extend.
  • the upper beam 2 and the lower beam 3 are provided for welding the material web 1 and therefore carry along their material web 1 facing surface a corresponding tool, here welding bar 21, 31, with the devices not shown on the for the welding of Material web 1 required temperature can be brought.
  • FIG. 1 From the illustration in FIG. 1 can be seen also a series of adjusting screws 20, 30, with which the attached to the upper beam 2 and lower beam 3 welding bars 21, 31 aligned on flat and deflections can be compensated.
  • a traction mechanism 9 is provided for driving the upper beam 2 and lower beam 3, which is formed by an endless over an upper guide roller 5 above the upper beam 2 and a lower guide roller 6 below the lower beam 3 guided toothed belt or chain, wherein the traction mechanism 9 in the Region between upper guide roller 5 and lower guide roller 6 is divided into two strands 9a, 9b.
  • the upper beam 2 and the lower beam 3 are formed with the same masses, which can be effected on the one hand by structurally identical training or by appropriate attachment of additional weights on upper or lower beam 2, 3 as needed.
  • a load-neutral suspension of upper and lower beams 2, 3 causes the traction mechanism 9, as the respective masses of upper and lower beams 2, 3 cancel each other within the traction mechanism 9.
  • the upper beam 2 and the lower beam 3 regardless of their actual mass due to the respective counterweight in the form of the lower beam 3 and upper beam 2 with low inertia and little effort in the direction of arrow P1 or P2 or opposite thereto movable.
  • a drive motor 4 is provided, which in the exemplary embodiment FIG. 1 is formed by a rotating electric motor with a downstream gear 4a, which is followed by an eccentric drive 40 on the drive shaft, which via its eccentric pinion 40a and the eccentric housing 40b, the rotational movement of the drive motor 4 according to Arrow M1 in FIG. 2 converted into a linear or translational movement M2.1.
  • a linear drive 42 in the form z. B.
  • a pneumatic cylinder (spring), whose piston rod is formed at its free end with a condyle 42 a, which in turn is connected to a drive lever 43.
  • the drive lever 43 in turn is rigidly connected to the axle 44, on which the upper deflection rollers 5 of the traction mechanism drives 9 are arranged.
  • the drive motor 4 performs a rotational movement according to arrow M1
  • it is converted by the eccentric gear 40 into a linear movement M2.1, which in turn is converted via the drive lever 43 into a rotational movement M3 of the axle 44 and thus the deflection rollers 5 of the traction mechanism 9.
  • the two strands 9a, 9b of the traction mechanism drive 9 move in opposite directions in the direction of arrow M4 or M5, so that the upper and lower beams 2, 3 are moved in opposite directions to one another or removed from each other.
  • a tensioning device 41 is provided, by means of which the distance between the axes 44, 60 set from each other and thus the tension of the traction mechanism 9 can be adjusted.
  • FIGS. 3a to 3c shown operating mode can be seen in the FIG. 3a in that the eccentric pinion 40a is in its highest position and consequently the eccentric housing 40b is in its lowest position. In this position, which corresponds to a maintenance or mounting position, the upper beam 2 and the lower beam 3 are furthest away from each other. This position can be approached outside the cyclic operation, as explained below.
  • the two operating positions are in the FIGS. 3b and 3c shown.
  • FIG. 3b is accordingly the feed position in which the material web 1 is cyclically advanced by a certain amount.
  • the drive motor 4 is rotated by 90 °, as a result of which the eccentric pinion 40a is moved into a 6 o'clock position and the eccentric housing 40b is located in its lowest position.
  • FIGS. 3a to 3c shown operation is particularly suitable for welding and embossing a web, for example, in the creation of sealing seams, since high welding performance can be achieved here.
  • FIGS. 4a to 4d a modified mode of operation of the device according to the invention.
  • FIGS. 4b to 4d represent individual positions of a work cycle, however, which is achieved via a reversing operation of the drive motor 4 in a 180 ° rotation according to arrow M1.
  • the representation corresponds to FIG. 4b the previously explained FIG. 3b and the illustration according to Figure 4c according to the representation Figure 3c ie in FIG. 4b the feed position is shown while in Figure 4c the upper and lower beams 2, 3 come to rest against each other and edit the material web 1 and upon further rotation in the position according to FIG. 4d in which the eccentric pinion 40a is located at a 3 o'clock position, the upper beam 2 and the lower beam 3 according to the situation in FIG FIG. 4b are lifted off each other, so that a feed of the material web 1 can take place.
  • the upper and lower beams 2, 3 are then first applied again with the material web 1 interposed therebetween Figure 4c until again a reopening of upper and lower beams 2, 3 and corresponding feed of the material web 1 according to FIG. 4b is reached.
  • the drive motor 4 With a single reversing of the drive motor 4 by 180 ° in the clockwise and 180 ° counterclockwise thus two successive work cycles and processing of the material web in addition to the same feed. Due to this higher number of cycles, in which the return stroke is simultaneously working cycle, the device operated in this way is suitable, for example, for cutting and perforating the material web 1, which can be effected by attaching appropriate tools to the upper beam 2 and lower beam 3.
  • FIGS. 5a to 5c a third mode of operation of the device in which the drive motor 4 is not reversing, but in a rotational direction according to arrow M1 is operated by 360 °.
  • the positions according to Figure 5a and 5c are identical and correspond to those of FIGS. 4a and 3a ie both an operating and assembly position, in which upper and lower beams 2, 3 are lifted from each other and in which also the feed of the material web 1 takes place, while in the intermediate position according to FIG. 5b , the the Figure 4c respectively.
  • Figure 3c corresponds, the upper and lower beams 2, 3 with the interposition of the web 1 to each other come to rest and processing of the web 1 is carried out. It is obvious that in this mode of operation the device faces a larger opening stroke FIG. 4b and FIG. 3b is reached, so that this mode of operation is particularly suitable for cutting a material web 1.
  • linear actuator 42 may be provided in the form of, for example, a pneumatic cylinder.
  • This linear drive 42 can be actuated in response to the movement of the drive motor 4, in which the associated piston rod with rod end 42a according to arrow M2.2 off or retracted.
  • the stroke between the open and closed positions of the upper and lower beams 2, 3 can be defined in all embodiments described above on the eccentric gear 40 and the drive lever 43, depending on the requirement of processing and / or material web to be processed.
  • the device according to FIGS. 6a, 6b differs from the above-explained device by the type of drive of the traction mechanism 9.
  • the drive is effected via a linear motor 400, such as a pneumatic cylinder, which is disposed between an attachment point 400a and the drive lever 43.
  • a linear motor 400 such as a pneumatic cylinder
  • the piston rod of the linear motor 400 is extended, as shown in the FIG. 6a is represented by the traction mechanism drive and its two strands 9a, 9b of the upper beam 2 and the lower beam 3 with the interposition of the web 1 to each other brought to rest, with the power of the linear motor 400, a defined contact pressure can be generated.
  • FIG. 7 is a versus the representation in FIG. 2 modified embodiment of the device shown, which differs in that the lower beam 3 is fixedly supported in the device and has no connection to one of the two strands 9a, 9b, while the upper beam 2 is guided in the manner already described movable and by clamping device 22nd is attached to the run 9a, so that its movement takes place in accordance with the movement of the run 9a according to arrow M4.
  • the fixed lower beam 3 is positioned accurately in a manner not shown by means of a dowel pin 35 in the device.

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  • Treatment Of Fiber Materials (AREA)
  • Machines For Laying And Maintaining Railways (AREA)

Claims (15)

  1. Dispositif de traitement d'une bande de matière (1) transportée dans un sens de transport (F), comprenant une poutre supérieure (2) disposée au-dessus de la bande de matière (1) et une poutre inférieure (3) disposée en dessous de la bande de matière (1), qui s'étendent respectivement de manière transversale au sens de transport (F) de la bande de matière (1) et au moins la poutre supérieure ou inférieure (2, 3) peut être déplacée de manière cadencée jusqu'à ce qu'elles s'appuient l'une contre l'autre après avoir intercalé la bande de matière pour le traitement de la bande de matière (1), un entraînement étant prévu pour déplacer les poutres supérieure et/ou inférieure (2, 3), caractérisé en ce que l'entraînement comprend un entraînement de moyen de traction (9) tournant entre un galet de renvoi supérieur (5) et un galet de renvoi inférieur (6), qui est en relation active avec un moteur d'entraînement (4, 400) et se divise en deux brins (9a, 9b) entre les galets de renvoi (5, 6), et la poutre supérieure (2) est reliée à l'un des brins (9a) et la poutre inférieure (3) à l'autre brin (9b) de l'entraînement de moyen de traction (9).
  2. Dispositif selon la revendication 1, caractérisé en ce que la poutre supérieure (2) et la poutre inférieure (3) peuvent être déplacées de manière cadencée en sens contraire jusqu'à ce qu'elles s'appuient l'une contre l'autre après avoir intercalé la bande de matière (1).
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que l'entraînement de moyen de traction (9) est réalisé sous forme d'entraînement de moyen de traction à correspondance de forme avec une courroie dentée tournant sans fin entre les galets de renvoi (5, 6) ou avec une chaîne tournant sans fin.
  4. Dispositif selon l'une quelconque des revendications 1 à 3, caractérisé en ce que respectivement un entraînement de moyen de traction (9) est prévu de part et d'autre des poutres supérieure et inférieure (2, 3) et les galets de renvoi respectivement supérieur (5) et inférieur (6) sont disposés sur des arbres (44, 60) respectivement communs.
  5. Dispositif selon l'une quelconque des revendications 1 à 4, caractérisé en ce que des colonnes de guidage (8) sont prévues, et en ce que les poutres supérieure et inférieure (2, 3) sont guidées sur les colonnes de guidage (8) à l'aide de douilles de glissement (23, 33).
  6. Dispositif selon l'une quelconque des revendications 1 à 5, caractérisé en ce que la poutre supérieure (2) et la poutre inférieure (3) ont des masses identiques.
  7. Dispositif selon l'une quelconque des revendications 1 à 6, caractérisé en ce que le moteur d'entraînement (4) comprend un moteur rotatif avec une transmission excentrique (40) disposée en aval qui est en relation active avec l'entraînement de moyen de traction (9).
  8. Dispositif selon la revendication 7, caractérisé en ce que le moteur rotatif peut être exploité de manière cadencée avec un mouvement de rotation réversible de 90° ou 180° pour traiter la bande de matière.
  9. Dispositif selon la revendication 7, caractérisé en ce que le moteur rotatif peut être exploité de manière cadencée avec un mouvement de rotation de 360° pour traiter la bande de matière.
  10. Dispositif selon l'une quelconque des revendications 7 à 9, caractérisé en ce qu'un entraînement linéaire (42), qui peut être actionné de manière cadencée en fonction du mouvement du moteur rotatif, est prévu entre la transmission excentrique (40) et l'entraînement de moyen de traction (9).
  11. Dispositif selon la revendication 10, caractérisé en ce que l'entraînement linéaire (42) peut être exploité dans le même sens ou dans le sens opposé par rapport à la transmission excentrique (40).
  12. Dispositif selon l'une quelconque des revendications 1 à 6, caractérisé en ce que le moteur d'entraînement (4) comprend un moteur linéaire (400), qui est en relation active avec l'entraînement de moyen de traction (9).
  13. Dispositif selon l'une quelconque des revendications 1 à 12, caractérisé en ce qu'un dispositif de commande est prévu, au moyen duquel le moteur d'entraînement (4, 400) peut être commandé avec une vitesse variable.
  14. Dispositif selon l'une quelconque des revendications 10 ou 11 ou 13, caractérisé en ce qu'un dispositif de commande est prévu, au moyen duquel l'entraînement linéaire (42) peut être commandé avec une vitesse variable.
  15. Dispositif selon l'une quelconque des revendications 1 à 14, caractérisé en ce que la poutre supérieure et inférieure (2, 3) sont réalisées sous forme de poutre de soudage, de poutre de coupe, de poutre de poinçonnage, de poutre d'estampage ou de poutre de perforation.
EP07711452A 2006-02-10 2007-02-07 Dispositif de traitement d'une bande de matiere Not-in-force EP1981792B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102006006466 2006-02-10
DE102006006601A DE102006006601A1 (de) 2006-02-10 2006-02-13 Vorrichtung zum Bearbeiten einer Materialbahn
PCT/EP2007/001018 WO2007090616A1 (fr) 2006-02-10 2007-02-07 Dispositif de traitement d'une bande de matiere

Publications (2)

Publication Number Publication Date
EP1981792A1 EP1981792A1 (fr) 2008-10-22
EP1981792B1 true EP1981792B1 (fr) 2009-11-04

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP07711452A Not-in-force EP1981792B1 (fr) 2006-02-10 2007-02-07 Dispositif de traitement d'une bande de matiere

Country Status (4)

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EP (1) EP1981792B1 (fr)
AT (1) ATE447535T1 (fr)
DE (2) DE102006006601A1 (fr)
WO (1) WO2007090616A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009035132A1 (de) 2009-07-29 2011-02-03 Edmund Mundorf Vorrichtung zum Bearbeiten einer Materialbahn

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1028456B (it) * 1975-01-17 1979-01-30 Sitund Holdings S A Dispositivo di saldatura e taglio per macchine da imballaggio
US4063400A (en) * 1976-10-22 1977-12-20 Weldotron Corporation Continuous film sealing machine
DE4241974C1 (de) * 1992-12-12 1993-11-25 Lemo Maschb Gmbh Vorrichtung zur Steuerung von Schweißwerkzeugen an Folienschweißmaschinen, insbesondere bei der Herstellung von Beuteln, Säcken oder dgl. aus thermoplastischen Kunststoffolienbahnen
AT407236B (de) * 1998-10-05 2001-01-25 Starlinger & Co Gmbh Vorrichtung zur trennung übereinanderliegender materialbahnen
DE10317834B3 (de) * 2003-04-16 2004-10-21 Parker Hannifin Gmbh Zuschneideanlage mit zwei gegeneinander verfahrbaren Greiferbalken
DE10322079A1 (de) * 2003-05-15 2004-12-02 Karl Rabofsky Gmbh Messerfaltmaschine mit mechanischer und kompensatorischer elektrischer Kopplung der Faltmesserbewegungen

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WO2007090616A1 (fr) 2007-08-16
ATE447535T1 (de) 2009-11-15
EP1981792A1 (fr) 2008-10-22
DE502007001901D1 (de) 2009-12-17
DE102006006601A1 (de) 2007-08-16

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