EP3461769B1 - Procédé et un dispositif d'enveloppe d'une machine à papier - Google Patents

Procédé et un dispositif d'enveloppe d'une machine à papier Download PDF

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Publication number
EP3461769B1
EP3461769B1 EP17193946.5A EP17193946A EP3461769B1 EP 3461769 B1 EP3461769 B1 EP 3461769B1 EP 17193946 A EP17193946 A EP 17193946A EP 3461769 B1 EP3461769 B1 EP 3461769B1
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EP
European Patent Office
Prior art keywords
speed
rotating speed
roll
motor
material web
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP17193946.5A
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German (de)
English (en)
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EP3461769A1 (fr
Inventor
Andreas Steixner
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.)
Siemens Energy Global GmbH and Co KG
Original Assignee
Siemens AG
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Filing date
Publication date
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Application filed by Siemens AG filed Critical Siemens AG
Priority to ES17193946T priority Critical patent/ES2820648T3/es
Priority to EP17193946.5A priority patent/EP3461769B1/fr
Publication of EP3461769A1 publication Critical patent/EP3461769A1/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
    • B65H26/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/10—Speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2553/00—Sensing or detecting means
    • B65H2553/40—Sensing or detecting means using optical, e.g. photographic, elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2555/00—Actuating means
    • B65H2555/20—Actuating means angular
    • 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
    • B65H2601/20—Avoiding or preventing undesirable effects
    • B65H2601/26—Damages to handling machine
    • B65H2601/261—Clogging

Definitions

  • the invention relates to a method and a system, in particular a winding device of a paper machine.
  • the invention further relates to a computer program product.
  • Winding devices are used to wind up a paper web in a paper machine.
  • the diameter of the paper roll changes with every revolution.
  • a continuous determination of the speed of rotation and the diameter of the paper roll are therefore advantageous.
  • the diameter of the paper roll has been determined using a laser-based sensor.
  • the optical components of the laser-based sensor often have to be cleaned disadvantageously. If the laser-assisted sensor is not cleaned in time, the laser-assisted sensor can fail. A sensor failure can result in a paper machine failure.
  • U.S. 4,951,567 A. discloses a security system for a printing press with at least one machine drive, a braking device and an electronic control therefor.
  • the control electronics enable the drive arrangement to be braked electronically and has a monitoring circuit to which the setpoint and actual values of the rotational speed of the drive arrangement can be fed and which activates the braking device in the event of an impermissibly high deviation between a setpoint and an actual value.
  • US 2002/017212 A1 discloses a method for detecting errors in the transport of a web in a printing press, in which the web speed by a non-contact measurement is determined according to the Doppler principle.
  • a first local path speed at a first measuring position and at least one second local path speed at a second measuring position are determined by means of microwaves.
  • An actual value is determined from the first local web speed and at least the second local web speed.
  • a deviation of the actual value from a predetermined target value is determined and compared with a predetermined threshold value.
  • the object is achieved by a method according to claim 1 and by a winding device according to claim 9.
  • the laser-based sensor can be replaced by another encoder to determine the speed of rotation.
  • the speed of rotation can also be determined with the aid of a frequency converter.
  • a value of the speed of the web is preferably determined from the respective rotational speed.
  • the first speed of the web is preferably compared with the second speed of the web.
  • the first rotational speed is preferably compared with the second rotational speed.
  • a warning signal can be provided.
  • the respective speed of the web can be compared with a predetermined speed for the web.
  • the specified speed is an example of a maximum speed.
  • the roller has a variable diameter.
  • the diameter of the roll can change over time.
  • the diameter of the roll can change due to the web of material wound or unwound on the roll.
  • the diameter of the roll is a measure of the number of wound or unwound layers of the web.
  • the motor is preferably used to drive the roller.
  • the motor preferably has the first transmitter.
  • the motor also has the second encoder.
  • the respective motor of the system can be switched off.
  • the web can be moved at the lowest possible speed.
  • the second encoder is preferably also assigned to the motor.
  • the second encoder can also be assigned directly to the roller with the variable diameter.
  • the rotation speed of the roller is determined directly by assigning the second encoder to the roller.
  • the second transmitter can also be assigned to another role, in particular another role, preferably with a constant diameter.
  • the second encoder can thus also be assigned to a further motor, the further motor serving to drive the further roller.
  • the speed of the material web can easily be determined using the speed of the roll.
  • the second encoder can also be assigned to a roller with a constant diameter. By determining the speed of rotation of the roll with the constant diameter, the speed of the web can easily be determined. In this case, the speed of the web is proportional to the product of the diameter and the respective speed of rotation of the roll.
  • the second rotational speed can also be provided with the aid of the frequency converter.
  • the second rotational speed is preferably determined using the frequency converter by analyzing the motor current provided.
  • the tangential speed of the respective roll corresponds to the speed of the web.
  • the speed of the material web can be determined twice and thus particularly reliably.
  • the invention is particularly advantageously used to obtain a SIL-2 certification for a system, in particular for a paper machine.
  • the first speed of the web is determined by the speed of rotation of a further roll.
  • the further roller preferably has a constant diameter. On the basis of the constant diameter, the speed of the material web can be inferred directly from the rotational speed of the further roll.
  • the speed of rotation of the further roller is determined with at least one encoder.
  • the rotational speed of the further roller is advantageously determined using a first encoder and a second encoder.
  • the first encoder and the second encoder are advantageously arranged on the motor that drives the roller with the constant diameter.
  • the first and / or second speed is based on the first rotational speed and / or the second rotational speed the web is determined via the respective tangential speed of the roll.
  • the tangential speed of a roll can be determined by the respective speed of rotation of the roll.
  • the respective tangential speed is proportional to the speed of rotation of the respective roller.
  • the diameter is preferably adjusted by simulating or calculating the diameter of the roll.
  • the respective tangential speed of the roll corresponds to the speed of the web.
  • the calculation can be simplified by calculating the speed of the web based on the respective tangential speed. Parameters such as a modulus of elasticity of the web can also be advantageously determined.
  • the diameter of the roller is variable.
  • the diameter of the roll usually changes in the case of a roll in which the web is wound up or unwound. With a constant thickness, the change in the diameter of the web is proportional to the number of layers of the web that are (still) wound on the roll.
  • the invention can be applied to a winding device.
  • a winding device with a SIL-2 certification can also be provided.
  • the diameter of a further roller is constant and the second transmitter is assigned to the further roller.
  • the second roller is advantageously used to deflect the web.
  • the further roll therefore has a constant tangential speed at a constant web speed.
  • the speed of the web is proportional to the speed of rotation of the further roll.
  • the second encoder can be assigned to the further motor.
  • the respective speed of the material web can be determined particularly easily on the basis of the respective rotational speed.
  • the first and second rotational speeds are compared in terms of magnitude and direction, and a warning signal is output at different rotational speeds.
  • the comparison is preferably carried out in a control device and / or with the aid of a computer program.
  • a comparison of the respective rotational speeds and / or a comparison of the respectively determined speed of the material web can take place.
  • the respectively determined tangential speeds of the respective roll can also be compared with one another. By comparing the respective rotational speeds, the system can be brought into the safe state if the (rotational) speeds deviate.
  • a comparison of the (rotational or tangential) speeds can advantageously be used to determine a web break or other disruption.
  • first rotational speed and / or the second rotational speed are each provided to a first control device and an optional second control device.
  • the control device is preferably used to determine the respective speed of the material web on the basis of the rotational speed provided in each case. If the first speed deviates from the second speed of the material web, the first control device and / or the optional second control device can provide the warning signal. If two control devices are present, the control devices are advantageously designed redundantly.
  • the speed of the material web is preferably determined using the first rotational speed in the first control device and the speed of the material web is determined using the second rotational speed using a second control device.
  • the respective determination of the speed of the material web is preferably carried out independently of one another from the respective rotational speed.
  • the first speed can also be determined independently, in particular redundantly, in the respective control device from the determination of the second speed.
  • the speed of the material web is determined based on the first rotational speed in a first time period and the speed of the material web is determined based on the second rotational speed in a second time period.
  • the time periods can be disjoint and / or alternate.
  • the second control device preferably takes over the tasks of the first Control device. With a redundant design of the control devices, taking over the tasks is simplified.
  • the multiple determination of the speed of rotation also enables the tangential speed of the respective roll to be determined multiple times and / or the speed of the material web to be determined multiple times.
  • the operational safety of the system can be increased by the double execution of the control device.
  • the second encoder determines the rotational speed of the respective roller directly.
  • the first and the second transmitter are each positioned on a roller in such a way that the respective transmitter directly determines the rotational speed of the respective roller.
  • the direct or immediate determination of the respective rotational speed is preferably carried out by arranging the respective encoder on the respective roller.
  • the speed of the material web can take place independently of any inaccuracies that may occur during the transmission of the respective rotational speed.
  • the first and the second transmitter are further preferably positioned on the roller with the variable diameter.
  • the direct determination is made by positioning the respective encoder on the respective role. Due to the direct positioning of the second encoder on the roller, inaccuracies in the transmission of the rotary movement between the motor and roller can be excluded.
  • the respective rotational speed is provided, the respective control device controlling or regulating the respective rotational speed of the motor such that the respective speed of the web does not exceed a maximum speed.
  • the (re) determination of the respective rotational speed from the determined speed of the material web is advantageously carried out analogously to a control loop.
  • the respective rotational speed is preferably provided to the frequency converter.
  • the frequency converter controls or regulates the speed of rotation of the motor.
  • a maximum rotational speed can result from the specification of a maximum speed of the material web.
  • SIL2 certification of the system can be achieved.
  • the first rotational speed and / or the second rotational speed ensure that the speed of the material web does not exceed a predetermined value.
  • the set value for the speed of the web is preferably a maximum value, e.g. 20 m / s.
  • the maximum value is preferably predetermined.
  • the maximum value is preferably different for different operating modes of the system.
  • a safe one Operating mode for example after starting the system, can be designed particularly safely.
  • a plausibility check is carried out to determine whether the first speed, which was determined from the first rotational speed, is equal to the second speed, which was determined from the second rotational speed.
  • the plausibility check is preferably carried out in the control device. In the case of two control devices, the plausibility check is advantageously carried out redundantly in the respective control device. The plausibility checks are preferably carried out independently of one another.
  • the plausibility check can advantageously be used to check whether the sensors and / or the control device are functioning properly.
  • Both the first and the second transmitter are preferably positioned on the respective motor.
  • the second transmitter can be positioned on the roller itself.
  • the second encoder can then directly determine the speed of rotation of the roller.
  • the second encoder can also be assigned to the shaft of the respective role.
  • the second encoder can also be assigned to a further role, in particular with a constant diameter.
  • the other roller can also be driven by another motor.
  • the second encoder can be assigned to the other motor.
  • a particularly safe mode of operation results if, in the event of failure of one of the encoders, the respective rotational speed is determined with the help of the other encoder.
  • the system can then continue to be operated in a safe mode until the error has been rectified.
  • the system can be operated in a particularly simple manner.
  • “fail-safe” drive components are preferably provided, such as a “fail-safe” frequency converter.
  • F-CPU's F-CPU's
  • Drive components from Siemens AG are particularly suitable.
  • the rotation speed provided is preferably checked with a further rotation speed, which was calculated as an example.
  • the system has a first and a second control device, the respective control device being designed in each case for specifying the rotational speed of the respective motor.
  • the first and the second control device are preferably designed redundantly.
  • the operational safety can be increased further by the multiple configuration of the respective control device.
  • the frequency converter comprises a rotation speed determination, the rotation speed determination being designed to provide the second rotation speed and / or the second speed of the material web.
  • Modern frequency converters generally have a rotational speed determination. This is usually used to provide the speed of rotation of the motor connected to the frequency converter.
  • the second encoder can advantageously be saved and / or the control device can be relieved.
  • the system is a paper machine, in particular a winding device.
  • the invention can be used for a winding device and / or an unwinding device of a web.
  • the web is preferably a cellulose-containing web, such as a paper web.
  • Another possible application of the invention is a tubular bag machine or a wire winding machine.
  • the first and second sensors are preferably assigned to the motor that rotates the variable diameter roller.
  • both encoders are positioned on the same motor. In this way, an offset due to deviations or slippage between the two rotational speeds can be avoided.
  • the respective rotational speed can be provided by the frequency converter, in particular by determining the rotational speed.
  • a failure of the encoder does not necessarily lead to the system being brought into a safe state.
  • the function of the respective encoder can be checked by comparing the respective rotational speed of the encoder with the rotational speed that is provided by the frequency converter.
  • Such a comparison can take place at the beginning of the operating time of the system and / or at recurring times during the operation of the system.
  • a plausibility check of the speeds and / or the rotational speeds serves to provide the warning signal, the warning signal being provided if the first (rotational) speed deviates from the second (rotational) speed.
  • the computing unit can be designed as a microcontroller.
  • the computing unit can also be integrated in the respective control device.
  • FIG 1 shows a winding device.
  • the winding device serves to wind up a web 1.
  • the web 1 is an example of a paper web that is produced in a paper machine.
  • the web 1 moves at a speed V1, V2 in the direction of a roll 3, the roll 3 having a variable (increasing in time) diameter d due to the wound web 1.
  • the role 3 rotates on a shaft 11 and is positioned by the shaft 11. Part of the web 1 is already rolled up on the roll 3. This part is referred to as the wound web 1a.
  • the wound web 1a defines the diameter d of the roll 3.
  • the speed V of the paper web is determined with a first sensor 9a and a second sensor 9b.
  • the first encoder 9a is used to determine the first rotational speed D1 of the roller with a variable diameter d.
  • the second encoder 9b is used to determine the second rotational speed D2 of the roller 3 with a variable diameter d.
  • the first transmitter 9a and the second transmitter 9b each transmit a signal to a control device 13.
  • the control device 13 is used in particular to determine the speed V of the web 1.
  • the speed V of the web 1 is determined, for example, by calculating the tangential speed Vt of the roll 3 with variable diameter d.
  • the first encoder 9a is positioned in the motor 5.
  • the motor 5 is supplied with a motor current by a frequency converter 7.
  • the frequency converter 7 has a rotational speed determination 7F.
  • the rotational speed determination 7F serves to determine the second rotational speed D2.
  • the second rotational speed D2 which was determined with the aid of the rotational speed determination 7F of the converter, is also made available to the control device 13.
  • the rotational speed determination 7F is preferably designed as a "fail-safe" rotational speed determination 7F.
  • the first speed V1 of the material web 1 is preferably provided from the first rotational speed D1 with the aid of the control device 13.
  • the second speed V2 of the web 1 is provided from the second rotational speed D2.
  • the second speed V2 of the web 1 is alternatively or additionally provided by the frequency converter 7.
  • the control device 13 is preferably used to ensure a maximum speed of the web 1.
  • the control device 13 is preferably used to control the motor 5 by providing control signals to the frequency converter 7. If the first speed V1 deviates from the second speed V2, the control device provides a warning signal WS.
  • the warning signal WS is used to transfer the system to a safe state.
  • FIG 2 shows the detail of a control device 13.
  • the control device 13 or a module of the control device each has an input for the first rotational speed D1 and for the second rotational speed D2.
  • a comparison module 15 the first rotational speed D1 is compared with the second rotational speed D2. If the first rotational speed D1 and the second rotational speed D2 deviate, a warning signal is output.
  • the warning signal is used in particular to bring the system into a safe state.
  • the respective rotational speed D1, D2 is also provided to a calculation unit F1, F2.
  • the respective calculation unit F1, F2 is used to calculate the respective speed V of the web 1.
  • the first calculation unit F1 can be assigned to the first control device 13a and the second calculation unit F2 to the second control device 13b.
  • the speed V of the web 1 or the respective tangential speed Vt can first be determined from the respective rotational speed D1, D2 and these can be compared with one another.
  • FIG 3 shows two control devices 13a, 13b.
  • the control devices 13a, 13b are preferably designed redundantly.
  • the redundant design of the control devices 13a, 13b can ensure an increase in operational reliability, insofar as one of the control devices 13a, 13b can control the system if one of the control devices 13a, 13b fails.
  • first rotational speed D1 and the second rotational speed D2 are respectively provided to the first control device 13a and that of the second control device 13b.
  • the first control device 13a and / or the second control device 13b calculate the tangential speed Vt of the respective roller 3, 4 from at least one of the rotational speeds D1, D2.
  • the respective control devices 13a, 13b preferably also calculate the first and / or second speed V1, V2 der Material web 1.
  • the respective speed V1, V2 and / or the tangential speed Vt is provided to the frequency converter 7 in each case.
  • the frequency converter 7 controls the rotational speed D1, D2 of the motor 5 and the roller 3 on the basis of the speed V and / or the tangential speed Vt of the roller 3.
  • FIG 4 shows a section of a paper machine.
  • the web 1, in particular a cellulose-containing web such as paper is passed over a further roll 4 and the roll 3 is rolled up with a variable diameter d.
  • the diameter d of the roll 3 changes due to the rolling / unrolling of the web 1 onto the roll 3.
  • Another roll 4 has a constant diameter d.
  • the first encoder 9a is assigned to the roller 3 with the variable diameter d.
  • the second encoder 9b is assigned to the further roller 4 with the constant diameter d.
  • Roll 3 and further roll 4 are preferably each assigned to a motor. In this case, the respective transmitter 9a, 9b be assigned to the respective motor 5, which moves the respective roller 3, 4 (rotating).
  • FIG 5 shows another winding device. Shown is a web 1 which is moved along a further roll 4 at a speed v1, v2. The material web 1 is rolled up on a roll 3 with a variable diameter d. Both the roller 3 with a variable diameter d and the further roller 4 with a constant diameter are each driven by a motor 5.
  • the respective motor 5 has a first sensor 9a and a second sensor 9b. Depending on the configuration, some of the sensors 9a, 9b can also be arranged directly on one of the rollers 3, 4.
  • the respective motor 5 has a first sensor 9a and a second sensor 9b. Depending on the configuration, some of the sensors 9a, 9b can also be arranged directly on one of the rollers 3, 4.
  • the respective motor 5 has a first sensor 9a and a second sensor 9b. Depending on the configuration, some of the sensors 9a, 9b can also be arranged directly on one of the rollers 3, 4.
  • the respective roller has a tangential speed Vt. If the web of material breaks, the respective tangential speeds Vt of the rollers 3, 4 would differ. With a normally provided function of the winding device or a normally provided function of the paper machine, the tangential speeds Vt are essentially the same.
  • the respectively determined rotational speeds D1, D2 are made available to the control device 13.
  • the control device 13 can also be designed redundantly with a further control device (not shown).
  • the operational safety can be increased by double monitoring of the respective rotational speeds of the rollers 3, 4.
  • the invention relates to a method and an installation.
  • the method is used for a particularly safe operation of the system.
  • a first rotational speed D1 and a second rotational speed D2 are determined.
  • a speed V1, V2 of a material web 1 is determined in each case.
  • the first rotational speed D1 is determined using a first encoder 9a determined.
  • the second rotational speed D2 is determined with the aid of a second encoder 9b and / or a rotational speed determination 7F, in particular as part of a frequency converter 7.
  • Fields of application of the invention are in particular a paper machine, a printing machine, a tubular bag machine or a winding device.

Landscapes

  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Claims (11)

  1. Procédé pour faire fonctionner un dispositif d'enroulement d'une machine à papier, le dispositif d'enroulement ayant un rouleau (3) de diamètre (d) variable et un moteur (5), le moteur (5) servant à entraîner le rouleau (3, 4), dans lequel on alimente le moteur (5) en un courant de moteur par un convertisseur (7) de fréquence, dans lequel on détermine une première vitesse (D1) de rotation du rouleau (3, 4) ou du moteur (5), et une deuxième vitesse (D2) de rotation du rouleau (3, 4) ou du moteur (5), dans lequel on détermine la première vitesse (D1) de rotation par une premier capteur (9a), et dans lequel on se procure la deuxième vitesse (D2) de rotation
    - par le convertisseur (7) de fréquence,
    et dans lequel, à l'aide de la première vitesse (D1) de rotation, on détermine une première vitesse (v1) de la bande (1), dans lequel, à l'aide de la deuxième vitesse (D2), on détermine une deuxième vitesse (v2) de la bande (1), et dans lequel il se produit un écart imprévu de la première vitesse (V1) de la bande (1) à la deuxième vitesse (V2) de la bande (1), on fait passer le dispositif d'enroulement dans un état sécurisé.
  2. Procédé suivant la revendication 1, dans lequel on détermine la vitesse (v1, v2) de la bande (1) par la vitesse (D1, D2) de rotation d'un autre rouleau (4).
  3. Procédé suivant la revendication 1 ou 2, dans lequel, à l'aide de la première vitesse (D1) de rotation et/ou de la deuxième vitesse (D2) de rotation, on détermine la première vitesse (V1) de la bande (1) et la deuxième vitesse (V2) de la bande (1), respectivement à l'aide d'une vitesse (Vt) tangentielle du rouleau (3, 4).
  4. Procédé suivant l'une des revendications précédentes, dans lequel le diamètre (d) du rouleau (3) est variable.
  5. Procédé suivant l'une des revendications précédentes, dans lequel on compare, en valeur absolue et en direction, la première vitesse (D1) de rotation et la deuxième vitesse (D2) de rotation et, si les vitesses (D1, D2) de rotation sont différentes, on émet un signal d'alerte.
  6. Procédé suivant l'une des revendications précédentes, dans lequel on met la première vitesse (D1) de rotation et/ou la deuxième vitesse (D2) de rotation, respectivement, à disposition d'un premier dispositif (13a) de commande et d'un deuxième dispositif (13b) de commande, le dispositif (13, 13a, 13b) respectif de commande mettant à dispositif du moteur la vitesse (D1, D2) de rotation respective.
  7. Procédé suivant l'une des revendications précédentes, dans lequel, à l'aide de la première vitesse (V1 et/ou de la deuxième vitesse (V2), on met à dispositif la vitesse (D1, D2) de rotation respective, de manière à ce que la vitesse (V1, V2) respective de la bande (1) ne dépasse pas une vitesse maximum.
  8. Procédé suivant l'une des revendications précédentes, dans lequel on effectue un contrôle de vraisemblance pour savoir, à l'aide de la première vitesse (D1) de rotation et de la deuxième vitesse (D2) de rotation, si la bande (1) a la même vitesse (V1, V2).
  9. Dispositif d'enroulement d'une machine à papier, comportant un rouleau (3), le rouleau étant constitué notamment pour la réception ou la distribution d'une bande (1), le rouleau (3, 4) étant relié à un moteur (5), le moteur (5) étant constitué pour entraîner le rouleau (3) à une vitesse (D1, D2) de rotation, le moteur (5) étant relié à un convertisseur (7) de fréquence, un premier capteur (9a) étant associé au moteur (5) et le premier capteur (9a) étant prévu pour disposer d'une premier vitesse (D1) de rotation, dans lequel
    - le convertisseur (7) de fréquence est prévu pour mettre une deuxième vitesse (D2) de rotation à disposition du dispositif (13, 13a, 13b) de commande,
    dans lequel, à l'aide de la première vitesse (D1) de rotation, on détermine une première vitesse (V1) de la bande (1) et à l'aide de la deuxième vitesse (D2) de rotation, on détermine une deuxième vitesse (V2) de la bande (1), dans lequel le dispositif (13, 13a, 13b) de commande est constitué pour l'émission d'un signal (WS) d'alerte, si la première vitesse (D1) de rotation et la deuxième vitesse (D2) de rotation ou la première vitesse (V1) de la bande et la deuxième vitesse (V2) de la bande sont différentes.
  10. Dispositif d'enroulement suivant la revendication 9, comportant un premier dispositif (13a) de commande et un deuxième dispositif (13b) de commande, les dispositifs (13a, 13b) de commande étant constitués chacun pour la prescription de la vitesse (D1, D2) de rotation respective du moteur (5) respectif.
  11. Dispositif d'enroulement suivant l'une des revendications 9 ou 10, dans lequel le convertisseur (7) de fréquence a une détermination (7F) de la vitesse de rotation et la détermination (7F) de la vitesse de rotation est prévue pour la mise à disposition de la deuxième vitesse (D2) de rotation et/ou de la deuxième vitesse (V2) de rotation de la bande (1°).
EP17193946.5A 2017-09-29 2017-09-29 Procédé et un dispositif d'enveloppe d'une machine à papier Active EP3461769B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ES17193946T ES2820648T3 (es) 2017-09-29 2017-09-29 Procedimiento y dispositivo de bobinado de una máquina para fabricar papel
EP17193946.5A EP3461769B1 (fr) 2017-09-29 2017-09-29 Procédé et un dispositif d'enveloppe d'une machine à papier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17193946.5A EP3461769B1 (fr) 2017-09-29 2017-09-29 Procédé et un dispositif d'enveloppe d'une machine à papier

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EP3461769A1 EP3461769A1 (fr) 2019-04-03
EP3461769B1 true EP3461769B1 (fr) 2020-07-01

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4951567A (en) 1986-05-02 1990-08-28 Heidelberger Druckmaschinen Ag Electronic safety system for a printing machine
US5405069A (en) 1992-02-25 1995-04-11 International Business Machines Corporation Paper motion detection system
DE4441864A1 (de) 1993-12-18 1995-06-22 Hengstler Gmbh Vorrichtung zur berührungslosen Geschwindigkeitsmessung
GB2301093A (en) 1995-05-22 1996-11-27 Heidelberg Harris Sa Web transportation disruption detection
US20020017212A1 (en) 2000-07-14 2002-02-14 Tobias Muller Method and device for detecting faults during transport of a web
US20120078576A1 (en) 2009-05-28 2012-03-29 Johannes Starkl Monitoring System and Apparatus Comprising Such a Monitoring System
WO2017102189A1 (fr) 2015-12-17 2017-06-22 Siemens Aktiengesellschaft Dispositif de contrôle protégé contre les erreurs de la vitesse d'un entraînement

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4951567A (en) 1986-05-02 1990-08-28 Heidelberger Druckmaschinen Ag Electronic safety system for a printing machine
US5405069A (en) 1992-02-25 1995-04-11 International Business Machines Corporation Paper motion detection system
DE4441864A1 (de) 1993-12-18 1995-06-22 Hengstler Gmbh Vorrichtung zur berührungslosen Geschwindigkeitsmessung
GB2301093A (en) 1995-05-22 1996-11-27 Heidelberg Harris Sa Web transportation disruption detection
US20020017212A1 (en) 2000-07-14 2002-02-14 Tobias Muller Method and device for detecting faults during transport of a web
US20120078576A1 (en) 2009-05-28 2012-03-29 Johannes Starkl Monitoring System and Apparatus Comprising Such a Monitoring System
WO2017102189A1 (fr) 2015-12-17 2017-06-22 Siemens Aktiengesellschaft Dispositif de contrôle protégé contre les erreurs de la vitesse d'un entraînement

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
WOLFGANG WALENSKI: "Der Rollenoffsetdruck", 1995, FACHSCHRIFTEN-VERLAG, article "Das Papier", pages: 250 - 267, XP055794176

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