EP1260470B1 - Méthode et dispositif pour l'amortissement actif de vibrations dans des enrouleuses - Google Patents

Méthode et dispositif pour l'amortissement actif de vibrations dans des enrouleuses Download PDF

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Publication number
EP1260470B1
EP1260470B1 EP02010992A EP02010992A EP1260470B1 EP 1260470 B1 EP1260470 B1 EP 1260470B1 EP 02010992 A EP02010992 A EP 02010992A EP 02010992 A EP02010992 A EP 02010992A EP 1260470 B1 EP1260470 B1 EP 1260470B1
Authority
EP
European Patent Office
Prior art keywords
winding
roll
bodies
vibration
roller
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.)
Expired - Lifetime
Application number
EP02010992A
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German (de)
English (en)
Other versions
EP1260470A2 (fr
EP1260470A3 (fr
Inventor
Hermann Albert Dipl.-Ing. Stitz
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.)
Voith Paper GmbH and Co KG
Original Assignee
Voith Paper 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 Voith Paper GmbH and Co KG filed Critical Voith Paper GmbH and Co KG
Publication of EP1260470A2 publication Critical patent/EP1260470A2/fr
Publication of EP1260470A3 publication Critical patent/EP1260470A3/fr
Application granted granted Critical
Publication of EP1260470B1 publication Critical patent/EP1260470B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B65H18/00—Winding webs
    • B65H18/08—Web-winding mechanisms
    • B65H18/14—Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web
    • B65H18/16—Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web by friction roller
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/08—Web-winding mechanisms
    • B65H18/14—Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web
    • B65H18/20—Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web the web roll being supported on two parallel rollers at least one of which is driven
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
    • B65H2515/50—Vibrations; Oscillations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2601/00—Problem to be solved or advantage achieved
    • B65H2601/10—Ensuring correct operation
    • B65H2601/12—Compensating; Taking-up
    • B65H2601/125—Vibration
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S242/00—Winding, tensioning, or guiding
    • Y10S242/907—Vibration creation or dampening

Definitions

  • the invention relates to a method for damping vibrations during the winding of material webs - in particular paper and Kartonbahnen- according to the preamble of claim 1, and a winding machine according to the preamble of claim. 8
  • US 5 961 899 A shows a calender with several rolls arranged one above the other.
  • the lower roller is stationary.
  • the rollers above are mounted on levers.
  • error sensors are arranged at the bearings of the two lower rollers.
  • error sensor Between the lower roller bearing and the bearing above Roller is arranged another error sensor.
  • speed sensors There are also speed sensors that detect the speed of the two lower rollers.
  • Winding machines are known in many different constructions and serve to wind a web to winding rolls. In the production of paper or board webs takes place the winding of the finished, several meters wide, web either at the end of the paper machine or at the end of a downstream coater.
  • Such winding machines are known, for example, from the documents DE 40 07 329 A1 and EP 0 792 829 A2.
  • the winding machine from the document DE 40 07 329 A1 corresponds to the design of the so-called Pope-Rollers.
  • EP 0 792 829 A2 another type of Pope roller is shown in which during winding the winding axis remains stationary, but the pressure roller is moved horizontally in response to the growing winding.
  • the web is divided by several longitudinal cuts in single tracks, which are wound on sleeves, which are usually made of cardboard.
  • This winding on sleeves is done either on so-called support roll winding machines or on so-called backup roll winding machines.
  • a carrier roll winding machine is known, in which the webs is wound in an upper gusset between the two support rollers.
  • guide heads engage in order to an axial
  • the document WO 93/15988 discloses a winding machine which has only one roller. This winding machine is called a backup roll winding machine. In the upper region of this support roller, the winding rollers are - with respect to the apex line of the support roller - alternately offset to each other. For holding the winding rollers on the support roller engage in the sleeves of the winding roll on both sides guide heads, which are connected to reduce the weight of the winding rollers on the support roller with piston-cylinder units.
  • winding machines have in common that always at least one roller and at least one winding roll together form a pressure line. Some of these winding machines also have an additional pressure roller, which provides the winding rollers from above with an additional contact pressure. Also, the said winding machines is common that it may, for example, by imbalance of the rollers and, above all, by the winding rollers to vibrate. The vibrations due to imbalance are synchronous with the rotational frequencies of the rollers or the winding rollers. Fluctuations - for example in the thickness - of the material to be wound up, however, lead to circumferential bumps in the surface of the wound rolls. As a result, additional vibrations are triggered, which can lead to the winding roll out of the winding bed in the case of support rollers winding machines in extreme cases.
  • Shifting the axis of rotation looks at a "belly" of the winding roll - in its otherwise circular shape - in such a way that the axes of rotation of the roll and the winding roll for a short time at a greater distance from each other for the duration of the "belly".
  • a "dent" in the winding roll is correspondingly a reduction of the distance of the axes of rotation.
  • the axis of rotation of the winding roll or the roller or can be displaced simultaneously both axes of rotation.
  • the vibration damping according to the invention can also be described as follows: Depending on a roller and a winding roll roll with their lateral surfaces from each other so that the cylindrical circumference of the roller follows the quasi-cylindrical surface of the winding roll.
  • a roller by means of short-term increase of force deliberately pressed against a "bump”, so would by elasticities of the winding roll and possibly also the roll cover, the winding roll from the "bump” are accelerated away. This would create vibrations.
  • a roller must not necessarily be moved axially parallel, but it can be individually reacted to the bearings with the axis displacement.
  • an additional energy is used, which is independent of a current energy state of the oscillating system (winding roll and carrier roll or pressure roller). As a result, the additional energy does not cause the vibrating system to vibrate. If the additional energy is supplied, for example, by a high-performance hydraulic pump and this hydraulic pump is additionally driven only in its lower power range, so also in the upper part of the pump characteristic declining performance, not the vibration system excite.
  • the type of vibration damping according to the invention is an active vibration damping.
  • the momentary vibration forces are proportional to the momentary vibration accelerations.
  • the vibration forces for the evaluation of the vibration can be measured, but also the acceleration itself or the related physical quantities such as displacement and speed.
  • suitable differentiation and / or arithmetic either the forces can be determined or one uses the abovementioned physical quantities also without further processing for the control process of the active vibration damping.
  • the active vibration damping is already known from the automotive industry, where then the noise inside the vehicle are measured at a very high sampling rate, then then by means of a targeted control of speakers, which then - in contrast to the invention vibration damping oscillate in antiphase and thus a sound cancellation to effect.
  • the required energies for active damping, in relation to the winding technique only make up a tiny fraction of the total. This becomes all the clearer when you realize that according to the current state of the art, a finished winding roll on the Pope scooter can weigh over 100 tons.
  • FIG. 1 shows a carrier roll winding machine with two rolls a, b.
  • body Since according to the invention winding roll and / or roller can experience an active vibration damping and because of the avoidance of or-formulations in the characterizing part of the main claims and in the dependent claims, reference is made here to the correspondence to the term "body”.
  • a material web 16 partially wraps around the roller a and is wound on a sleeve 15 by the direction of rotation of the rollers a, b.
  • a pressure roller d may optionally be present.
  • the roller b has two bearings 7 (due to the side view in FIG. 1, only one bearing can be represented).
  • a transducer 9 is arranged on at least one of the bearings 7, a transducer 9 is arranged.
  • This transducer 9 is not affected by forces, since it is not in the power flow between the winding roll c and an abutment 18.
  • the transducer 9 is an accelerometer, it is capable of registering oscillations of the bearing 7.
  • the bearing 7 is held by means of a strut 17 and an abutment 19 substantially in its horizontal position.
  • an actuator 11 preferably in the form of a hydraulic cylinder, is arranged between the bearing 7 and the abutment 18, an actuator 11, preferably in the form of a hydraulic cylinder, is arranged. Connecting lines of the hydraulic cylinder have been omitted here for clarity.
  • actuators 11 and linear motors can be used.
  • the vibration damping is particularly difficult because not only the vibrations on a nip (roller and winding roll) occur, but at the same time provides a second nip for vibrations. Therefore, there are interactions between the three bodies (rolls a, b, and roll c). By means of a suitable calculation model, the necessary axis-parallel movements of the roller b are calculated from the bearing forces. In this way, especially the problems of interactions are to be solved as far as possible.
  • FIG 3 is to illustrate a further arrangement of the actuators 11, 12 in a carrier roll winding machine.
  • the actuators 11, 12 are aligned horizontally.
  • the guides 13, 14 must be formed on one side only supporting because of the weight of the winding roll c. Now, if the actuators 11, 12 are aligned horizontally, it can be sensitively responded because the horizontal component allows for a large travel small vertical components.
  • each individual winding roller c can be provided with guide heads in FIG. 4, alternatively or additionally an active vibration damping could act on each individual winding roller.
  • FIG. 1 The engagement of guide heads in the winding rollers c - in conjunction with the active vibration damping according to the invention is shown in FIG.
  • the dashed double circles on the roller d show the sleeves 15 in position during the winding start.
  • the winding rollers c are arranged alternately to their apex line and perpendicular to the plane of the drawing. Therefore, the ends of the sleeves 15 of each winding roller c are accessible to guide heads.
  • the winding rollers c are lifted by actuators so that not the full weight of the winding roll c comes to fruition.
  • the contact pressure of the winding roll c on the roll d can be made smaller than the normal force of the winding roll own weight.
  • the mechanism for lifting the winding roll c is now combined with the active vibration damping. It is understood that here by means of the guide heads but also an additional contact pressure could be realized.
  • the active vibration damping can be used not only in support or backup roll winding machines, ie for longitudinally divided webs 16, but also for the Pope scooter and its advancements. Here then can act both on the bearings of the pressure roller, as well as on the bearings of the winding axis active vibration damping. Furthermore, the present invention can also be applied to wrapping machines and also to uncoiling stations for coating machines.

Landscapes

  • Winding Of Webs (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Vibration Prevention Devices (AREA)

Claims (12)

  1. Procédé d'amortissement des oscillations dans des enrouleuses pour bandes de matériau, notamment des bandes de papier et de carton, ayant les caractéristiques suivantes :
    - au moins deux corps cylindriques roulant l'un sur l'autre (a, b, c, d) forment ensemble une ligne de contact,
    - l'un des corps (a, b, c, d) est un rouleau d'enroulement et l'autre corps (a, b, c, d) est un cylindre s'appliquant sur lui,
    - les deux corps (a, b, c, d) forment par déséquilibre ou défaut de rotondité l'un avec l'autre un système capable d'osciller,
    caractérisé en ce que
    - au moins l'un des corps (a, b, c, d) du système oscillant subit un amortissement actif vis-à-vis des forces d'oscillation,
    - autrement dit, une pluralité de mesures des forces d'oscillation ont lieu pour chaque rotation de l'un des corps (a, b, c, d),
    - en fonction de la valeur de mesure actuelle, l'axe de rotation (1, 2, 3, 4, 5) d'au moins un corps (a, b, c, d) est décalé de telle sorte que les forces d'oscillation soient réduites,
    - le décalage de l'axe de rotation (1, 2, 3, 4, 5) s'effectue au moyen d'une énergie supplémentaire apportée depuis l'extérieur au système.
  2. Procédé selon la revendication 1, caractérisé en ce que pour chaque rotation de l'un des corps (a, b, c, d), on obtient au moins quatre valeurs de mesure.
  3. Procédé selon l'une quelconque des revendications 1 ou 2, caractérisé en ce qu'avant d'obtenir une nouvelle valeur de mesure, le décalage de l'axe de rotation (1, 2, 3, 4, 5) résultant de la dernière valeur de mesure est achevé, de sorte que l'on dispose ainsi d'un traitement des données en temps réel.
  4. Procédé selon l'une quelconque des revendications 1 à 3, caractérisé en ce que les valeurs de mesure sont traitées dans un programme informatique.
  5. Procédé selon la revendication 4, caractérisé en ce que le programme informatique contient un algorithme qui enregistre le déroulement dans le temps des valeurs de mesure en fonction du déroulement du corps, l'algorithme reconnaissant, par la succession des valeurs de mesure, la rotation suivante du corps rotatif et de ce fait parvenant plus rapidement au cours de son traitement des données aux valeurs pour le décalage de l'axe de rotation.
  6. Procédé selon la revendication 5, caractérisé en ce que l'algorithme est capable d'apprentissage dans le cadre des paramètres du système oscillant et est donc auto-adaptatif.
  7. Procédé selon l'une quelconque des revendications 1 à 6, caractérisé en ce que le nombre des valeurs de mesure est plus faible au début de l'enroulement et augmente avec l'augmentation du diamètre des rouleaux d'enroulement.
  8. Dispositif pour mettre en oeuvre le procédé selon l'une quelconque des revendications 1 à 7, au moyen d'une enrouleuse ayant au moins deux corps (a, b, c, d), l'un des corps (a, b, c, d) étant un cylindre et l'autre corps (a, b, c, d) étant un rouleau d'enroulement et au moins un corps (a, b, c, d) étant pourvu au niveau des extrémités de son axe de rotation (1, 2, 3, 4, 5) de paliers décalables (6, 7, 8) auxquels s'applique une énergie supplémentaire sous forme d'organes de réglage (11, 12), caractérisé en ce que l'on associe à ces paliers (6, 7, 8) des enregistreurs de valeurs de mesure de la force d'oscillation (9, 10) et les organes de réglage (11, 12) décalent les paliers en fonction du signal des enregistreurs de valeurs de mesure de la force d'oscillation (9, 10) de telle sorte que les forces d'oscillation soient réduites.
  9. Dispositif selon la revendication 8, caractérisé en ce que l'organe de réglage (11, 12) est constitué d'un cylindre hydraulique.
  10. Dispositif selon l'une quelconque des revendications 8 ou 9, caractérisé en ce que l'énergie supplémentaire est orientée verticalement.
  11. Dispositif selon l'une quelconque des revendications 8 ou 9, caractérisé en ce que l'énergie supplémentaire est orientée horizontalement.
  12. Dispositif selon l'une quelconque des revendications 8 ou 9, caractérisé en ce que l'énergie supplémentaire est orientée dans la direction de l'axe de rotation (1, 2, 3, 4, 5) du corps associé (a, b, c, d).
EP02010992A 2001-05-23 2002-05-17 Méthode et dispositif pour l'amortissement actif de vibrations dans des enrouleuses Expired - Lifetime EP1260470B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10125192 2001-05-23
DE10125192A DE10125192A1 (de) 2001-05-23 2001-05-23 Verfahren und Vorrichtung zur aktiven Schwingungsdämpfung bei Wickelmaschinen

Publications (3)

Publication Number Publication Date
EP1260470A2 EP1260470A2 (fr) 2002-11-27
EP1260470A3 EP1260470A3 (fr) 2004-05-12
EP1260470B1 true EP1260470B1 (fr) 2006-09-13

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EP02010992A Expired - Lifetime EP1260470B1 (fr) 2001-05-23 2002-05-17 Méthode et dispositif pour l'amortissement actif de vibrations dans des enrouleuses

Country Status (4)

Country Link
US (1) US7588208B2 (fr)
EP (1) EP1260470B1 (fr)
AT (1) ATE339376T1 (fr)
DE (2) DE10125192A1 (fr)

Cited By (1)

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EP2080722A2 (fr) 2008-01-18 2009-07-22 Voith Patent GmbH Dispositif d'enroulement de rouleaux et procédé destiné à enrouler une bande de matériau sur un rouleau

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2080722A2 (fr) 2008-01-18 2009-07-22 Voith Patent GmbH Dispositif d'enroulement de rouleaux et procédé destiné à enrouler une bande de matériau sur un rouleau
DE102008000096A1 (de) 2008-01-18 2009-07-23 Voith Patent Gmbh Rollenwickelvorrichtung und Verfahren zum Aufwickeln einer Materialbahn zu einer Wickelrolle

Also Published As

Publication number Publication date
ATE339376T1 (de) 2006-10-15
US20020185567A1 (en) 2002-12-12
EP1260470A2 (fr) 2002-11-27
DE10125192A1 (de) 2002-11-28
DE50208106D1 (de) 2006-10-26
US7588208B2 (en) 2009-09-15
EP1260470A3 (fr) 2004-05-12

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