EP1155987B1 - Antrieb für einen Rollenwechsler - Google Patents

Antrieb für einen Rollenwechsler Download PDF

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Publication number
EP1155987B1
EP1155987B1 EP01810485A EP01810485A EP1155987B1 EP 1155987 B1 EP1155987 B1 EP 1155987B1 EP 01810485 A EP01810485 A EP 01810485A EP 01810485 A EP01810485 A EP 01810485A EP 1155987 B1 EP1155987 B1 EP 1155987B1
Authority
EP
European Patent Office
Prior art keywords
motor
drive
reel changer
motors
control unit
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
EP01810485A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1155987A2 (de
EP1155987A3 (de
Inventor
Daniel Burri
Erich Kaufmann
Ulrich Kohli
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.)
Wifag Maschinenfabrik AG
Original Assignee
Wifag Maschinenfabrik AG
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 Wifag Maschinenfabrik AG filed Critical Wifag Maschinenfabrik AG
Publication of EP1155987A2 publication Critical patent/EP1155987A2/de
Publication of EP1155987A3 publication Critical patent/EP1155987A3/de
Application granted granted Critical
Publication of EP1155987B1 publication Critical patent/EP1155987B1/de
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
    • B65H19/00—Changing the web roll
    • B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B65H19/12—Lifting, transporting, or inserting the web roll; Removing empty core
    • B65H19/126—Lifting, transporting, or inserting the web roll; Removing empty core with both-ends supporting arrangements
    • 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
    • B65H2301/413—Supporting web roll
    • B65H2301/41306—Slot arrangement, e.g. saddle shaft bearing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/10—Size; Dimensions
    • B65H2511/11—Length
    • B65H2511/112—Length of a loop, e.g. a free loop or a loop of dancer 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
    • 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
    • B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
    • B65H2515/30—Forces; Stresses
    • B65H2515/31—Tensile forces
    • 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
    • B65H2515/30—Forces; Stresses
    • B65H2515/32—Torque e.g. braking torque
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2557/00—Means for control not provided for in groups B65H2551/00 - B65H2555/00
    • B65H2557/20—Calculating means; Controlling methods

Definitions

  • the present invention relates to a drive for a reel changer, as used in particular in rotary printing processes in newspaper, offset or commercial printing.
  • Reel changers are used for unwinding of web-like material which is wound on rolls, and are mainly used in conjunction with rotary printing machines, such as. As in the offset printing of newspapers or gravure printing of magazines to supply the printing machines paper webs, which are then printed in the printing presses.
  • the drive according to the invention can also be used in a reel changer in which a web of material other than paper is to be unwound.
  • the invention will be described below by way of example with reference to a roll changer for a printing press.
  • the term "reel changer” as used herein includes any driven device for unwinding a web, but without a concrete change of the web must be made during operation or such a changing device must be provided at all.
  • a printing press is to be fed as continuously as possible into a paper web during the current printing operation, preferably at a predetermined paper speed and web tension.
  • paper webs are controlled by the respective paper rolls and unrolled as evenly as possible, wherein it is desirable that a completely unwound, that is empty paper roll in the full run automatically replaced by a full role, so it can be changed.
  • the paper web of the unrolled roll is usually glued to the paper web of the full roll during the current printing operation, wherein preferably a transverse to the conveying direction of the adhesive strip is to be applied.
  • DE 39 06 506 C2 discloses a Abrollwagen for band-shaped material, wherein at least one drive motor is coupled to the shaft of a central wheel, which is formed as a motor-generator.
  • GB-A-2 043 298 shows a control apparatus for machines for feeding continuous webs of material in which the paper roll is driven by a motor which can also be used as a brake.
  • DE 197 25 786 C1 discloses a controller for an inverter-fed asynchronous motor in an actuator which converts the electrical energy generated in the engine at the place of origin into heat energy and releases it to the environment, so that a return of electrical energy is largely prevented in the DC link to prevent the destruction of components with limited dielectric strength.
  • a bobbin changer a rotary printing machine is known, wherein a drive, and a disc brake is provided as a separate braking device, which transmit a torque via a clutch. This coupling compensates for an axial offset.
  • the drive for a reel changer according to the invention has at least one motor for driving the reel changer, in particular the central axis or the core of the unwinding paper roll, wherein a drive electronics is provided for this motor, so that the motor can be driven on the one hand, as it is z. B. during acceleration or synchronization or uniform unwinding of the paper roll is required.
  • the motor can be controlled via the control electronics so that this motor is operated as a generator, that gives off energy, whereby a braking effect can be generated. The generated thereby obtained from the rotational energy of electrical energy can, for. B. be fed back into an electrical network.
  • phase shift is understood to mean the angle which, in the case of a three-phase or alternating current motor, lies between the voltage signal or signals which would have to be applied in order to drive the electric motor in synchronism at the instantaneous rotational speed and the applied drive signals to generate the desired braking effect.
  • an electric motor connected to a rotating axle is to be controlled in such a way that it generates a braking force directed in the opposite direction to the direction of rotation of the axle.
  • the voltage applied to the electric motor voltages should not be limited to pure sinusoidal, but may have other suitable waveforms, such. B. truncated subsegments of a full sine wave, as z. B. in a phase control is known.
  • Such a drive electronics for an engine can thus cause a controlled acceleration and deceleration, and a simple braking, as well as a rapid stop of the roller using a simple motor, the motor depending on the desired mode as a simple electric motor for accelerating or driving, as Generator or operated as an active brake.
  • the motor depending on the desired mode as a simple electric motor for accelerating or driving, as Generator or operated as an active brake.
  • active cooling or passive cooling elements such as. B. cooling fins or the like provided on the engine.
  • the drive or motor of the reel changer has to be designed larger in terms of torque and power than in a reel splitter with additional brake elements, which is particularly due to the engine load when braking full rolls of paper in a quick stop.
  • auxiliary brakes since it can be dispensed with auxiliary brakes by this design of the engine, overall, a more cost-effective structure of the reel changer.
  • the control arrangement and control functions of a reel changer are simplified by the arrangement described above, since the coordination of drive and braking operations is easy to overlook. It must z. B. no longer be taken to ensure that the drive of an engine is safely switched off when a brake is actuated, since drive and braking done via the same engine. Furthermore, the important for the running costs advantage that braking operations can be performed without wear, resulting in z. B. when using mechanical auxiliary brakes is not the case.
  • the motor is provided as the center drive of the paper roll, so that the torque or the driving force of the motor z. B. acts on spigot on the core of a paper roll.
  • a center drive in contrast to a peripheral drive in which a roll of paper is driven by straps on its circumference, the advantage that due to the gurlless drive to be attached in the transverse direction of a paper web adhesive strip for connecting two paper webs can be relatively easily applied.
  • the workload in the splice preparation and gluing the paper rolls can thus be reduced by a center drive, so that when a roll change the gluing of the paper web of a Neurolle on the paper web an Altrolle by the free from the drive system not blocked access to the entire paper web can be easily performed.
  • a center drive it is advantageous to drive a reel changer via such a center drive, wherein it is not absolutely necessary to provide a motor with the functionality described above.
  • a center drive so both an engine can be provided, which does not require additional auxiliary brakes, since this engine generates sufficient braking force.
  • a known motor with additional auxiliary brakes for driving Such a center drive may be used with or without any single or a combination of multiple elements of the reel changer drive described herein without necessarily using the specifically described engine functionality.
  • the present invention should not be limited to a center drive, but also other types of drives, such. B. include the described circumferential drive.
  • At least two motors are particularly advantageously provided for driving or braking the roll changer, wherein it is also conceivable to provide three, four or, depending on the application possibility, a larger number of motors.
  • the motors are connected on both sides of the roller via clamping pins with the roller core, so that the roller can be driven from both sides.
  • On each side of the roll core in such an arrangement compared to a unilateral center drive thus only half the torque is effective, whereby the mechanical stress on the core during acceleration or braking is significantly reduced. It is advantageous to use motors of the same design.
  • the control depending on the desired mode of the reel changer can be done so that z. B. in a simple braking process all motors are operated as generators.
  • z. B. one or more motors are actively braked, ie these motors are supplied with electrical signals so that they produce a rotational direction counteracting braking force.
  • at least one engine can continue to run in generator mode, so that the energy obtained from this engine z. B. is fed via an inverter in the or the actively braking motors.
  • all proposed motors are actively braked by supplying suitable electrical signals. It is Z. B. conceivable to provide two motors on each side, wherein in a deceleration operation, a motor is operated as a generator and generates the necessary energy for active braking of the other engine.
  • the motors used are three-phase asynchronous motors, wherein generally other types of motors can be used, such.
  • a common control electronics is provided when using multiple motors, so that the respective motors can be controlled easily in a matching manner with the same speed and torque to exert an acceleration or braking force on the arranged in the roll changer paper roll.
  • the drive is to be designed so that at least one motor is operated as a generator at the same time, wherein at least one other motor is operated by applying suitable voltage signals so that it generates an active braking effect, so when using a plurality of motors z.
  • the control electronics is preferably designed so that different drive characteristics of the motors used, which, for. B. in identical engines Manufacturing tolerances can result as parameters are entered or mapped as motor models, so that the control electronics torque differences, which can occur when using the same signals for different engines, can prevent.
  • So z. B. a correction algorithm for one or more of the motors or drives may be provided, which compensates for differences in performance of the respective drives characterized in that at least one of the motors or drives control signals are supplied, which with compensating control variables, such as. B. a correction current or a correction voltage, applied or superimposed.
  • suitable sensors are provided on the motors or the paper webs and controls in the control electronics, so that the output signals for controlling the motor of individual or more of the desired and / or actual values of certain parameters, such.
  • the paper web speed for example, measured on the circumference of the paper roll, the web tension, the roller position of a pendulum roller or the like depend.
  • the control electronics advantageously controls the motor (s) in such a way that as a function of measured input signals the unwinding speed of the paper web is regulated on the circumference of the paper roll, ie, for example. B. is held equal to the paper speed of the printing press.
  • an additionally provided pendulum roller is preferably held in a certain position.
  • control electronics implement a control, which z. B. consists of an upstream control function for the position of the pendulum roller and a downstream control function for the desired paper speed, wherein the difference of setpoint and actual value of the pendulum roller position is determined to control the pendulum roller position and based on a speed correction value is generated.
  • This speed correction value is then summed with the measured paper web speed of the printing machine, this sum forming the desired value of the speed control function.
  • This speed control function further takes into account the difference between the sum formed and the actual value of the unwinding speed of the paper web on the circumference of the paper roll and generates a control value which is used to control the motors, ie, for. B. activates the frequency converter of the control electronics.
  • control electronics is designed so that it has a drive controller and a power stage with a supply or supply unit and a frequency converter.
  • the power stage includes a regenerative supply unit, which can feed a braking energy generated by a motor braking energy back into an electrical network.
  • each of the motors in parallel at the output of the control electronics, z. B. to connect to the frequency converter, each of the motors can then always be operated with the same voltage and with the same design of the motors each receives the same fraction of the total current of the frequency converter.
  • the motors can also be connected in series at the output of the control electronics or the frequency converter, so that always the same current flows through the motors, in each case proportionately applied to the voltage of the frequency converter to the motors, so that z. B. in four identical motors used in each case a quarter of the voltage of the frequency converter is applied to a single motor.
  • control electronics provided control functions as programs, which z. B. can be performed cyclically on digital controllers or computer systems.
  • control functions can be implemented as programs, which z. B. can be performed cyclically on digital controllers or computer systems.
  • control functions can be implemented as analog circuits or the like.
  • the invention further relates to a method for driving a reel changer, wherein at least one motor of the reel changer is controlled so that it can be operated depending on the desired mode as a drive motor, as a generator for easy braking or as an active brake, wherein in the latter mode suitable voltage signals are supplied, which can generate a relatively large active counterforce against a momentary rotational movement.
  • z. B. as stated above, suitable phase-shifted AC signals are used.
  • the motor is driven so that to accelerate the engine, in which a larger force is required, other drive signals are applied, as in synchronous operation of the engine in continuous printing operation. So z. B. the amplitude of the applied voltages in the Acceleration phase can be increased, which is gradually reduced during startup to a smaller extent.
  • Figure 1 shows in plan view a reel changer with on both sides of the core of the paper roll provided clamping pin 2, which are driven by the provided on each side of electric motors 1a and 1b as a center drive, so as to transmit a torque for driving or braking on the paper roll 3, which as continuous paper web 4 is unwound in the printing operation.
  • a pendulum roller 19 is provided, the function of which will be described in more detail with reference to FIG.
  • FIG. 2 shows a reel changer which, unlike that shown in FIG. 1, is not driven directly by electric motors acting axially on the core 18 of the paper reel 3, but is driven by a motor offset laterally from the paper reel 3.
  • the paper web 4, which has been unwound continuously from the paper roll 3, is guided via a first stationarily mounted roll 20a to the oscillating roll 9 and from this via a second stationarily mounted roll 20b.
  • the pendulum roller 19 can be actively moved up or down to influence the tension or speed of the guided paper web 4 depending on a certain predetermined control algorithm. It is also possible that the pendulum roller 19 only acts on the paper web 4 due to its own weight or via a spring mechanism in order to ensure a desired web tension or web speed.
  • FIG. 3 shows a block diagram of a control electronics 9, which has a drive controller 5, in which certain signals of various actual values recorded by sensors be entered, such.
  • a control or control algorithm is provided in the drive controller 5, so that the drive controller 5 based on its input control or control algorithms and input signals the power stage 8 so controls that connected to the power stage 8 electric motors 1 a and 1 b in the desired mode be controlled, such. B. for accelerating or decelerating a paper roll.
  • the power level 8 is composed of a feed unit 7, which energy z. B. is supplied from a power grid. To this feed unit 7, a frequency converter 6 is connected, which the supplied primary energy from z. B. the power grid in suitable drive or drive signals for the connected electric motors 1a and 1b converts. If the motors 1a, 1b are operated in generator mode, the feed unit 7 can feed the energy recovered back into the grid.
  • FIG. 4 shows a control which generates a manipulated variable 17 for the frequency converter 6 shown in FIG.
  • the pendulum roller control 12 As an input signal of the pendulum roller control 12, the difference between the desired value 10 and the actual value 11 of the pendulum roller position is formed.
  • the pendulum roller control 12 generates as output a speed correction value 13, to which the target value of the paper speed of a printing press is added. From the sum of the signals 13 and 15, the actual value 14 of the paper speed of the supplied paper web is subtracted, which is preferably measured at the periphery of the paper roll 3.
  • the difference thus formed is supplied to the cruise control 16 as an input signal, wherein the desired manipulated variable 17 is generated for the frequency converter using an algorithm.

Landscapes

  • Replacement Of Web Rolls (AREA)
  • Control Of Multiple Motors (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Rotary Presses (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Automatic Tape Cassette Changers (AREA)
  • Liquid Crystal (AREA)
  • Braking Arrangements (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Valve Device For Special Equipments (AREA)
  • Advancing Webs (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
EP01810485A 2000-05-18 2001-05-16 Antrieb für einen Rollenwechsler Expired - Lifetime EP1155987B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10024120A DE10024120B4 (de) 2000-05-18 2000-05-18 Rollenwechsler mit Motorbremse
DE10024120 2000-05-18

Publications (3)

Publication Number Publication Date
EP1155987A2 EP1155987A2 (de) 2001-11-21
EP1155987A3 EP1155987A3 (de) 2003-10-15
EP1155987B1 true EP1155987B1 (de) 2006-12-27

Family

ID=7642361

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01810485A Expired - Lifetime EP1155987B1 (de) 2000-05-18 2001-05-16 Antrieb für einen Rollenwechsler

Country Status (8)

Country Link
US (1) US20020008173A1 (zh)
EP (1) EP1155987B1 (zh)
JP (1) JP3486176B2 (zh)
CN (1) CN1266013C (zh)
AT (1) ATE349390T1 (zh)
DE (2) DE10024120B4 (zh)
DK (1) DK1155987T3 (zh)
ES (1) ES2278714T3 (zh)

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DE102012208840A1 (de) 2011-06-01 2012-12-06 Koenig & Bauer Aktiengesellschaft Druckmaschine
DE102011088776B3 (de) * 2011-12-16 2013-01-17 Koenig & Bauer Aktiengesellschaft Rotationsdruckmaschine
WO2013020790A1 (de) 2011-08-09 2013-02-14 Koenig & Bauer Aktiengesellschaft Druckmaschine
DE102011080654A1 (de) 2011-08-09 2013-02-14 Koenig & Bauer Aktiengesellschaft Rollenabspulvorrichtung einer Rollen-Rotationsdruckmaschine
DE102011080657A1 (de) 2011-08-09 2013-02-14 Koenig & Bauer Aktiengesellschaft Rollenabspulvorrichtung einer Rollen-Rotationsdruckmaschine
WO2013087249A1 (de) 2011-12-16 2013-06-20 Koenig & Bauer Aktiengesellschaft Rollen-druckmaschine
WO2014086900A1 (de) 2012-12-06 2014-06-12 Koenig & Bauer Aktiengesellschaft Rollen-druckmaschine

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WO2012163614A1 (de) 2011-06-01 2012-12-06 Koenig & Bauer Aktiengesellschaft Druckmaschine und ein verfahren zur regelung einer bahnspannung
DE102012208840A1 (de) 2011-06-01 2012-12-06 Koenig & Bauer Aktiengesellschaft Druckmaschine
US9114636B2 (en) 2011-06-01 2015-08-25 Koenig & Bauer Aktiengesellschaft Printing machine and method for adjusting a web tension
DE102011080657A1 (de) 2011-08-09 2013-02-14 Koenig & Bauer Aktiengesellschaft Rollenabspulvorrichtung einer Rollen-Rotationsdruckmaschine
DE102011080650A1 (de) 2011-08-09 2013-02-14 Koenig & Bauer Aktiengesellschaft Rotationsdruckmaschine
DE102011080654A1 (de) 2011-08-09 2013-02-14 Koenig & Bauer Aktiengesellschaft Rollenabspulvorrichtung einer Rollen-Rotationsdruckmaschine
WO2013020790A1 (de) 2011-08-09 2013-02-14 Koenig & Bauer Aktiengesellschaft Druckmaschine
WO2013020729A1 (de) 2011-08-09 2013-02-14 Koenig & Bauer Aktiengesellschaft Rollenabspulvorrichtung einer rollen-druckmaschine
DE102011080654B4 (de) * 2011-08-09 2014-07-17 Koenig & Bauer Aktiengesellschaft Rollenabspulvorrichtung einer Rollen-Rotationsdruckmaschine
DE102011080657B4 (de) * 2011-08-09 2014-11-13 Koenig & Bauer Aktiengesellschaft Rollenabspulvorrichtung einer Rollen-Rotationsdruckmaschine
US8905346B2 (en) 2011-08-09 2014-12-09 Koenig & Bauer Aktiengesellschaft Roll unwinding device for a web printing press
WO2013087249A1 (de) 2011-12-16 2013-06-20 Koenig & Bauer Aktiengesellschaft Rollen-druckmaschine
DE102011088776B3 (de) * 2011-12-16 2013-01-17 Koenig & Bauer Aktiengesellschaft Rotationsdruckmaschine
WO2014086900A1 (de) 2012-12-06 2014-06-12 Koenig & Bauer Aktiengesellschaft Rollen-druckmaschine
DE102012222488A1 (de) 2012-12-06 2014-06-12 Koenig & Bauer Aktiengesellschaft Rollen-Druckmaschine

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US20020008173A1 (en) 2002-01-24
DE10024120A1 (de) 2001-11-29
DE50111715D1 (de) 2007-02-08
EP1155987A2 (de) 2001-11-21
JP2002029031A (ja) 2002-01-29
ATE349390T1 (de) 2007-01-15
EP1155987A3 (de) 2003-10-15
ES2278714T3 (es) 2007-08-16
JP3486176B2 (ja) 2004-01-13
CN1266013C (zh) 2006-07-26
CN1328951A (zh) 2002-01-02
DK1155987T3 (da) 2007-04-10
DE10024120B4 (de) 2005-08-25

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