EP1912768B1 - Dispositif de coupe transversale comprenant un systeme d'amortissement des oscillations - Google Patents

Dispositif de coupe transversale comprenant un systeme d'amortissement des oscillations Download PDF

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Publication number
EP1912768B1
EP1912768B1 EP06762666A EP06762666A EP1912768B1 EP 1912768 B1 EP1912768 B1 EP 1912768B1 EP 06762666 A EP06762666 A EP 06762666A EP 06762666 A EP06762666 A EP 06762666A EP 1912768 B1 EP1912768 B1 EP 1912768B1
Authority
EP
European Patent Office
Prior art keywords
blade shaft
deformation
cross
shaft
blade
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
EP06762666A
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German (de)
English (en)
Other versions
EP1912768A1 (fr
Inventor
Hansjörg Klein
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.)
Bielomatik Leuze GmbH and Co KG
Original Assignee
Bielomatik Leuze 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
Application filed by Bielomatik Leuze GmbH and Co KG filed Critical Bielomatik Leuze GmbH and Co KG
Publication of EP1912768A1 publication Critical patent/EP1912768A1/fr
Application granted granted Critical
Publication of EP1912768B1 publication Critical patent/EP1912768B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/56—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which travels with the work otherwise than in the direction of the cut, i.e. flying cutter
    • B26D1/62—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which travels with the work otherwise than in the direction of the cut, i.e. flying cutter and is rotating about an axis parallel to the line of cut, e.g. mounted on a rotary cylinder
    • B26D1/626—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which travels with the work otherwise than in the direction of the cut, i.e. flying cutter and is rotating about an axis parallel to the line of cut, e.g. mounted on a rotary cylinder for thin material, e.g. for sheets, strips or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2628—Means for adjusting the position of the cutting member
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2628—Means for adjusting the position of the cutting member
    • B26D7/265—Journals, bearings or supports for positioning rollers or cylinders relatively to each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/08—Means for treating work or cutting member to facilitate cutting

Definitions

  • the invention relates to a cross cutter with at least one blade shaft, and a blade shaft.
  • a cross cutter having a cutterhead provided for severing sheets from an endless web of paper or similar material, the cutterhead being provided with at least one knife at a circumference transverse to the direction of advance of the endless web.
  • the knife drum is assigned a second knife, which is arranged on the opposite side of the material web and can be arranged fixed or likewise on a rotatable cutterhead.
  • a high rotational speed of the cutterhead is required. In this case, natural oscillations occur on the cutterhead, which can lead to undesirable cutouts or at least to a reduction in the quality of cut.
  • a cross cutter with at least one rotating knife roller low mass helmets known.
  • the knife roll carries at least one cutting blade and cooperates with at least one counter knife and is supported on machine-mounted rollers that are intended to absorb unwanted bending vibrations of the knife roller.
  • the support rollers are in mechanical contact with the knife roller via cylindrical running surfaces and thus enable a power transmission from the knife roller in a machine bed of the cross cutter.
  • this cross cutter and knife diameter can be used with a small diameter, since no cavity must be provided for Schwlfitungsdämpfungs announced.
  • the cylindrical running surfaces must be provided on the knife roller, so that retrofitting of a cross Schnelders with this type of vibration damping is almost impossible. A retrofit would require significant modifications to the machine bed and the knife rollers.
  • a rotating knife with an electronically controlled active damping system is known to control blade cylinder vibrations.
  • the system uses a pair of electromagnetic actuators to apply opposing tractive forces to the ferromagnetic portion of a lever arm coupled outside of the range of a knife cylinder to its support shaft.
  • the object underlying the invention is to provide a vibration damping for a cross cutter, a method for operating a vibration-damped cross cutter and a suitable for the vibration-damped cross cutter blade shaft, which allow re-equipment or retrofitting a cross cutter with a vibration damping.
  • the means for deformation compensation allow the application of a repulsion or attraction force on the blade shaft.
  • a force can be applied without a physical, in particular mechanical contact between the means and the knife shaft, which force is opposite to the static and / or dynamic deformation of the knife shaft. This force can thus for a Reduction or complete extinction of the vibrations of the knife shaft can be used.
  • Suitable means for deformation compensation are devices which are capable of exerting forces on the blade shaft without contact by emitting force fields or particles.
  • magnetic devices, electrostatically operated devices or devices for the emission of streams of matter, in particular a Preseluftstrahls come into question.
  • Deformation compensation means are means for damping vibrations, in particular vibration waves, of the blade shaft and also comprise means which allow only partial compensation of the deformation of the blade shaft.
  • non-contact means for deformation compensation With the aid of non-contact means for deformation compensation, new cross-cutters can be equipped and existing cross-cutters retrofitted.
  • the non-contact means of deformation compensation allow the use of knife shafts with a particularly slim contour in cross cutters, whereby the overall properties of the cross cutter are improved.
  • the means for the deformation compensation at least one, preferably mounted on a machine bed, magnetic device which can be controlled by a control unit.
  • the magnetic device which may be embodied, in particular, as an electrically controllable magnetic coil or as a permanent magnet, allows non-contact exertion of force on the knife shaft, which is typically made of metal, in particular steel.
  • the magnet device can tighten the blade shaft. It is additionally or alternatively also possible to equip the knife shaft with magnetic or magnetizable elements that occur in the direction of the magnetic device and can be attracted to this or repelled.
  • At least one deformation measuring device is provided, which is designed to detect a deformation of at least one blade shaft and to provide a deformation signal.
  • a deformation measuring device makes it possible to determine the static and / or dynamic deformation of the blade shaft by scanning a surface or a reference geometry of the blade shaft. The scanning can be done by touching the surface or the reference geometry or alternatively also without contact.
  • a deformation measuring device can in particular mechanical buttons that the
  • the deformation of the knife shaft determined by the deformation measuring device can be made available in the form of a deformation signal for further processing.
  • the deformation signal can be made available in particular as an analog or digital electrical, optical or mechanical signal.
  • the deformation measuring device is provided for a deformation determination orthogonal to a rotational axis of the blade shaft.
  • An attachment of the deformation measuring device orthogonal to the axis of rotation of the blade shaft allows a particularly advantageous determination of the blade shaft deformation.
  • Such an arrangement of the deformation measuring device is particularly preferred with a view to retrofitting existing cross-cutters, since space in the spatial direction orthogonal to the axis of rotation of the cutter shaft is still most readily available for accommodating corresponding deformation measuring devices.
  • the deformation measuring device is arranged in an amplitude range of an eigenform of the blade shaft. Due to the excitation of the blade shaft during the cutting process, different oscillation states occur depending on the rotational speed of the blade shaft. These vibration states are significantly influenced by resonant vibrations of different orders.
  • a natural vibration of the first order which is also referred to as the first eigenmode, has a wavelength which corresponds at least approximately to twice the length of the knife roller. Natural oscillations or higher-order eigenmodes have wavelengths each with an integer fraction of the wavelength of the first eigenmode.
  • the second dominates Eigenform ie the wavelength of the natural vibration of the blade shaft corresponds to the length of the blade shaft.
  • the amplitude of the natural oscillation ie the maximum value of the deflection of the blade shaft occurs in each case in areas which are located on a quarter or three quarters of the blade wavelength. Vibration minima, ie areas with little or no deflection can be found on the end side and on half the length of the blade shaft when considering the second eigenmode.
  • a deformation measuring device is assigned to the locations along the axis of rotation of the cutter shaft at which the amplitudes of the second mode shape are present. This ensures that a particularly advantageous determination of the deformation of the blade shaft by the deformation measuring device can be achieved with respect to the second eigenform of the blade shaft and thus a particularly precise deformation signal can be made available.
  • the deformation measuring device is provided as Abstarsdsmess adopted for determining a spacing of the blade shaft of a countershaft or for determining a spacing of at least one blade shaft from the machine bed.
  • a determination of the distance between the blade shaft and a countershaft, which may be designed in particular as a further blade shaft, is based on the consideration that the two waves due to the occurring cutting forces dynamically substantially identical, but deform in opposite directions. In the area of the amplitudes of the natural oscillations, therefore, there is a particularly pronounced spacing or approach of the knife shafts, which is easy to detect by measurement.
  • each knife shaft can thereby be assigned one or more deformation measuring devices which provide the deformation signals necessary for individual deformation compensation for each cutter shaft.
  • the deformation measuring devices are on the typically extremely stiff designed machine bed and calibrated on the blade shaft, so that an exact measurement of a distance between the deformation measuring device and a surface of the blade shaft can be done.
  • at least one knife shaft is associated with a plurality of deformation measuring devices.
  • the means for deformation compensation assigned to a control unit which is designed for controlling a deliverable from the means force field.
  • the control unit allows influencing of the force field, which can be delivered by the means for deformation compensation for non-contact power application to the blade shaft.
  • the control device is set up in such a way that a deflection of the blade shaft caused by the inherent vibrations occurring and, in particular, a deformation signal caused thereby is answered with a force action of the deformation compensation means on the blade shaft which can be determined by the control unit.
  • control unit It can be stored in the control unit, a map or an algorithm that dictates the control or regulation of the force field in response to external parameters such as the rotational speed of the blade shaft and / or determined by the deformation measuring deformation of the blade shaft and thus a needs-based delivery of allows the blade shaft forces to exercise.
  • control the deformation compensation means which are influenced by the control unit, as a function of the deformation signal generated by the deformation measuring device, so that a closed control loop is produced and a control for deformation compensation is present.
  • the use of a magnetic coil mounted on the machine bed for non-contact exertion of force on the knife shaft allows influencing the magnetic forces without moving parts, since the magnetic force of the magnetic coil can be influenced solely by the provided electrical power.
  • a magnetic device designed with permanent magnets however, a mechanical actuator must be made available, which in particular by inserting or ejecting a shielding or by approximating or removing the permanent magnet of the blade shaft allows influencing the application of force between the permanent magnet and the blade shaft.
  • the magnetic coil or the adjusting device associated with the permanent magnet can be operated in such a way that the natural oscillations of the blade shaft can be compensated for at least substantially by a corresponding exertion of magnetic forces.
  • means for exerting attractive forces are associated with a first blade shaft and means for exerting repulsive forces are associated with a second blade shaft.
  • the material web to be trimmed in particular a paper web
  • runs essentially horizontally so that the counter-rotating knife shafts are arranged vertically one above the other and are aligned horizontally with their axes of rotation.
  • an arrangement of means for deformation compensation is expensive. It is therefore advisable to arrange the means for deformation compensation for the knife shaft arranged vertically below the material web in the vertical direction below this cutter shaft.
  • the means for deformation compensation for the blade shaft above the material web can be arranged in particular above this blade shaft.
  • both knife shafts already bend by their own weight statically in vertical direction down through.
  • the means for deformation compensation can be a substantially vertically upward Repulsive force can be exercised, which allows a favorable static and dynamic deformation compensation.
  • the application of substantially vertically upward attraction forces enables advantageous static and dynamic deformation compensation. That is, in a preferred embodiment of the invention, both cutter shafts are at least substantially acted upon by forces in a vertical upward direction, wherein for the lower blade shaft repulsion forces and for the upper blade shaft attraction forces are used
  • a method for deformation compensation of a knife shaft comprises the steps of: detecting a deformation of the knife shaft and providing a deformation signal by a deformation device, processing the deformation signal in a control unit, providing a compensation signal by the control unit for controlling at least one deformation compensation means for applying a compensating force to the cutter shaft ,
  • an assumed deformation of the blade shaft can also be used to control the means for deformation compensation.
  • the corresponding compensation signal can be determined by the control unit, for example as a function of a rotational speed of the blade shaft and the means for deformation compensation for exercising the compensation force available, so that there is a controlled deformation compensation.
  • the method makes use of a closed control loop, in which the deformation of the blade shaft is determined and provided as Deformatlonsslgnal the control unit, which in turn generates based on an empirically determined correlation table or algorithm, a compensation signal, which is suitable, the means for deformation compensation in such a way to control that the natural vibration of the blade shaft can be at least substantially attenuated or completely eliminated.
  • a knife shaft for a cross cutter with at least one cutting blade wherein in a peripheral region at least partially magnetic means are provided for a deformation compensation.
  • a fitted blade shaft is particularly suitable for use in a cross cutter with two counter-rotating blade shafts as the lower blade shaft, since the lower blade shaft can preferably vibration damped by repulsive forces and thus deformation compensated.
  • the magnetic devices which are designed in particular as permanent magnets and / or electrically operable magnetic coils, the necessary repulsion forces can be exerted to compensate for the static and the dynamic deflection in cooperation with in particular attached to the machine bed magnetic devices.
  • FIG. 1 In the illustration of a cross cutter according to the Fig. 1 it is a schematic block diagram in which, with the exception of the machine bed, not shown, the essential components of the cross cutter are shown.
  • the cross cutter 1 has an upper cutter shaft 2 and a lower cutter shaft 3, each of which is rotatably received in ball bearings 4 about axes of rotation 5 at the ends.
  • the axes of rotation 5 are aligned parallel to each other and allow an opposite rotation of the upper blade shaft 2 and the lower blade shaft 3.
  • the blade shafts 2, 3 are each equipped with cutting blades, not shown, which extend parallel to the axis of rotation 5 on the circumference of the respective blade shaft 2, 3 , Since it is in the representation according to the Fig.
  • the knife shafts 2, 3 are arranged apart from each other in order to better represent the respective assignment of the further components described in detail below.
  • the knife shafts 2, 3 are preferably arranged at a distance of approximately 5 to 10 mm, so that the material web to be cut can be passed between the knife shafts 2, 3.
  • Both knife shafts 2, 3 are in the present embodiment in each case as optical distance sensors designed deformation measuring 6 associated with a non-contact distance measurement from the machine bed not shown to the surface of the blade shafts 2, 3 allow.
  • the deformation measuring devices 6 are mounted on the machine bed of the cross cutter 1 and can in particular be calibrated so that they lie at resting knife shafts 2, 3 exactly in the middle of your measuring range, ie at its operating point and for example deliver a zero signal to the respective control units 7. This ensures that the inherent oscillations of the knife shafts 2, 3 occurring during operation with positive or negative amplitude can be measured accurately over the largest possible range.
  • the respective control units 7 assigned to a blade shaft 2 or 3 are coupled to one another via a control line 8 in order to be able to carry out a plausibility check of the distance values determined by the deformation measuring devices 6 and a coordinated influencing of the blade shafts 2, 3 via the means for deformation compensation.
  • the upper blade shaft 2 is designed substantially as a steel cylinder and has, as in the Fig. 2 is shown in more detail, a circular cross section. Exemplary is in the Fig. 2 a cutting blade 10 shown, typical blade shafts have 3 or 4 with the same angular pitch distributed over the circumference cutting blade 10.
  • the metallic material of the upper blade shaft 2 allows the blade shaft 2 to be attracted by the coil assemblies 9, so that a force can be exerted from the coil assemblies 9 in a substantially vertical upward direction on the upper blade shaft 2.
  • vibration damping are according to the Fig.
  • the upper cutter shaft 2 associated with three coil assemblies 9, which allow the exercise of a magnetic force on the upper cutter shaft 2 in an angular range of about 60 °, so that vibrations, in particular natural vibrations of the upper cutter shaft 2, can be damped over this angular range.
  • the lower blade shaft 3 In the lower blade shaft 3 are each provided in the areas of the blade shaft 3, in which the second eigenmode of the natural vibration each have their maximum amplitude, distributed around the circumference, with the positive pole radially outwardly directed permanent magnets.
  • the permanent magnets can be acted upon by the control unit 7 controllable, arranged in the vertical direction below the lower blade shaft 3 coil assemblies 9 with a repulsive force and thus allow deformation compensation of the lower blade shaft 3 substantially in a vertical upward direction.
  • the cutting blades 10 are arranged on the blade shafts 2, 3, that they lead to a slight radial overlap of the blades during synchronization of the blade shafts 2, 3, whereby a received between the blade shafts 2, 3 paper web 11, in a conveying direction 12 is conveyed between the cutter shafts 2, 3, can be divided.
  • the upper blade shaft 2 is made of a solid metal material and by the exerted by the coil assemblies 9 Magnetic forces can be attracted in the vertical direction upwards, are provided in the lower blade shaft 3 arranged in the radial direction, flush with the blade shaft surface permanent magnets 13 are provided, each having a same direction polarity, in this case the positive pole, pointing radially outward.
  • one or both blade shafts can be made of particular carbon fiber reinforced composite materials, which are provided at least in the region of the magnet assembly with metallic inserts.
  • three cutting blades are provided with an angular pitch of 120 ° for the upper blade shaft and the lower blade shaft, wherein permanent magnets are provided in peripheral regions between the cutting blades of the lower blade shaft, which allow repulsion through the coil assemblies ,
  • the deformation measuring devices are designed for determining a surface tension in the knife shaft and are designed in particular as piezoelectric elements, as strain gauges or as optically scannable stretch film and thus make it possible to determine the deformation of the knife shaft.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Cutting Devices (AREA)
  • Nonmetal Cutting Devices (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Milling Processes (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Sawing (AREA)

Claims (8)

  1. Dispositif de coupe transversale comprenant au moins un arbre à lames (2, 3) et des moyens de compensation de la déformation pour au moins un arbre à lames (2, 3), caractérisé en ce que des moyens (9, 13) de compensation de la déformation sont prévus pour exercer une force sans contact sur l'au moins un arbre à lames (2, 3), qui présentent un dispositif magnétique monté sur un socle de machine, notamment une bobine magnétique ou un aimant permanent, lequel peut être commandé par une unité de commande (7), et qui permettent d'exercer une force de répulsion ou d'attraction sur un arbre à lames (2, 3).
  2. Dispositif de coupe transversale selon la revendication 1, caractérisé en ce qu'il est prévu au moins un dispositif de mesure de la déformation (6) qui est configuré pour déterminer une déformation d'au moins un arbre à lames (2, 3) et pour délivrer un signal de déformation.
  3. Dispositif de coupe transversale selon la revendication 2, caractérisé en ce que le dispositif de mesure de la déformation (6) est prévu pour déterminer une déformation orthogonalement par rapport à un axe de rotation (5) de l'arbre à lames (2, 3).
  4. Dispositif de coupe transversale selon la revendication 3, caractérisé en ce que le dispositif de mesure de la déformation (6) est disposé dans une plage d'amplitude d'une forme propre de l'arbre à lames (2, 3), notamment de la deuxième forme propre.
  5. Dispositif de coupe transversale selon la revendication 1, caractérisé en ce que le dispositif de mesure de la déformation (6) est prévu en tant que dispositif de mesure de l'écart pour déterminer un espacement entre l'arbre à lames (2, 3) et un contre-arbre, notamment un autre arbre à lames (2, 3), ou pour déterminer un espacement entre au moins un arbre à lames (2, 3) et le socle de la machine.
  6. Dispositif de coupe transversale selon la revendication 2, caractérisé en ce qu'aux moyens (9, 13) de compensation de la déformation est associée une unité de commande (7) qui est configurée pour commander un champ de force pouvant être diffusé par les moyens (9, 13), notamment pour une régulation en fonction du signal de déformation généré par le dispositif de mesure de la déformation (6).
  7. Dispositif de coupe transversale selon la revendication 1, caractérisé en ce que des moyens destinés à exercer des forces d'attraction sont associés à un premier arbre à lames (2, 3) et des moyens pour exercer des forces de répulsion sont associés à un deuxième arbre à lames (2, 3).
  8. Arbre à lames (2, 3) pour un dispositif de coupe transversale, lequel arbre est équipé d'au moins une lame de coupe (10), caractérisé en ce que des dispositifs magnétiques (13), notamment des aimants permanents et/ou des bobines magnétiques à commande électrique, sont prévus pour une compensation de la déformation au moins dans certaines sections dans une zone périphérique de l'arbre à lames (2, 3).
EP06762666A 2005-07-22 2006-07-18 Dispositif de coupe transversale comprenant un systeme d'amortissement des oscillations Not-in-force EP1912768B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005035138A DE102005035138A1 (de) 2005-07-22 2005-07-22 Querschneider mit Schwingungsdämpfung
PCT/EP2006/007030 WO2007009735A1 (fr) 2005-07-22 2006-07-18 Dispositif de coupe transversale comprenant un systeme d'amortissement des oscillations

Publications (2)

Publication Number Publication Date
EP1912768A1 EP1912768A1 (fr) 2008-04-23
EP1912768B1 true EP1912768B1 (fr) 2010-10-27

Family

ID=37114279

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06762666A Not-in-force EP1912768B1 (fr) 2005-07-22 2006-07-18 Dispositif de coupe transversale comprenant un systeme d'amortissement des oscillations

Country Status (5)

Country Link
EP (1) EP1912768B1 (fr)
AT (1) ATE485927T1 (fr)
DE (2) DE102005035138A1 (fr)
ES (1) ES2354453T3 (fr)
WO (1) WO2007009735A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007006683A1 (de) * 2007-02-10 2008-08-28 WINKLER + DüNNEBIER AG Vorrichtung und Verfahren zur aktiven Schwingungsdämpfung bei gegenläufig rotierenden Walzen
CZ309850B6 (cs) * 2022-01-13 2023-12-13 České vysoké učení technické v Praze Způsob snížení deformace pracovního hřídele a sestava pro jeho provádění

Citations (2)

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Publication number Priority date Publication date Assignee Title
US4062097A (en) * 1975-12-31 1977-12-13 Valmet Oy Roll having magnetic deflection compensation
GB2033540A (en) * 1978-10-19 1980-05-21 Valmet Oy To its deflection roll magnetically compensated and/or adjusted with respect

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Publication number Priority date Publication date Assignee Title
DE949212C (de) * 1955-01-09 1956-09-13 Jagenberg Werke Ag Befestigung von Schneidbuechsen auf Walzenkoerpern an Rollenschneidemaschinen
FR1158121A (fr) * 1955-10-08 1958-06-06 Sucker Gmbh Geb Procédé pour adapter la forme d'un cylindre de machine textile à celle d'un contrecylindre
DE1817747A1 (de) * 1968-11-14 1970-10-08 Bhs Bayerische Berg Walzenlagerung
DE2851747C2 (de) * 1978-11-30 1986-05-28 Kleinewefers Gmbh, 4150 Krefeld Druckbehandlungs- oder Transportwalze, insbesondere Kalanderwalze
DE2917937B2 (de) * 1979-05-04 1981-04-23 Bielomatik Leuze Gmbh + Co, 7442 Neuffen Querschneider mit wenigstens einer rotierenden Messerwalze
DE2923516A1 (de) * 1979-06-09 1980-12-11 Will E C H Gmbh & Co Messertrommel fuer querschneider
US5570620A (en) * 1993-12-22 1996-11-05 Best Cutting Die Company Panel cutting apparatus
US6299571B1 (en) * 1999-10-22 2001-10-09 Morrison Berkshire, Inc. System and method for controlling deflection of a dynamic surface
WO2001078954A2 (fr) * 2000-04-14 2001-10-25 Marquip, Llc Couteau rotatif avec amortissement electromagnetique actif des vibrations
US6389941B1 (en) * 2000-04-14 2002-05-21 Marquip, Llc Rotary knife with electromagnetic active vibration control

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4062097A (en) * 1975-12-31 1977-12-13 Valmet Oy Roll having magnetic deflection compensation
GB2033540A (en) * 1978-10-19 1980-05-21 Valmet Oy To its deflection roll magnetically compensated and/or adjusted with respect

Also Published As

Publication number Publication date
EP1912768A1 (fr) 2008-04-23
ES2354453T3 (es) 2011-03-15
DE502006008186D1 (de) 2010-12-09
WO2007009735A1 (fr) 2007-01-25
ATE485927T1 (de) 2010-11-15
DE102005035138A1 (de) 2007-01-25

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