EP0018555A1 - Dispositif de réglage pour un dévidoir - Google Patents

Dispositif de réglage pour un dévidoir Download PDF

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Publication number
EP0018555A1
EP0018555A1 EP80102079A EP80102079A EP0018555A1 EP 0018555 A1 EP0018555 A1 EP 0018555A1 EP 80102079 A EP80102079 A EP 80102079A EP 80102079 A EP80102079 A EP 80102079A EP 0018555 A1 EP0018555 A1 EP 0018555A1
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EP
European Patent Office
Prior art keywords
drive
inertia
moment
winding
speed
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.)
Granted
Application number
EP80102079A
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German (de)
English (en)
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EP0018555B1 (fr
Inventor
Manfred Rubruck
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 AG
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Siemens AG
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Filing date
Publication date
Priority claimed from DE19792917868 external-priority patent/DE2917868A1/de
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP0018555A1 publication Critical patent/EP0018555A1/fr
Application granted granted Critical
Publication of EP0018555B1 publication Critical patent/EP0018555B1/fr
Expired legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/18—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
    • B65H23/182—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in unwinding mechanisms or in connection with unwinding operations
    • B65H23/1825—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in unwinding mechanisms or in connection with unwinding operations and controlling web tension

Definitions

  • the invention relates to a control arrangement for a roller carrier, which is known from DE- O S 27 32 644.
  • a control arrangement for a roller carrier is described, in which a web with a predetermined web tension is unwound from a rotatably mounted roller, the roller being assigned an electromotive drive or braking device with a speed controller and a computer that continuously optimizes control parameters for the speed controller the route parameters determined.
  • Control arrangements for roller carriers with fixed control parameters of the speed controller work unsatisfactorily since the time constant of the route changes within wide limits during an unwinding process.
  • the change in the time constant is caused by the sharp decrease in the moment of inertia of the winding as the diameter decreases.
  • DE-OS 27 32 644 provides for a continuous determination of optimized control parameters depending on the changing route parameters.
  • the current moment of inertia is determined by the computer from input variables for the web width and the specific material density, as well as from the current radius of the winding.
  • the web width could also be determined by a mechanical measuring device.
  • the present invention has for its object to develop the control arrangement for a roll carrier according to DE-OS 27 32 644 so that an input or detection of the specific density of the web material and the web width is no longer necessary.
  • this object is achieved in that the computer determines the optimized controller gain and / or the optimized readjustment time of the speed controller from an initial value of the moment of inertia and the instantaneous radius of the winding determined during the run-up of the new roll.
  • control arrangement In the control arrangement according to the invention, input devices or measuring devices for the specific material density and the web width are no longer required.
  • the optimized controller parameters are determined completely automatically from the changing route parameters. In addition to reducing the design effort, this also provides greater security against incorrect operation.
  • a circuit arrangement determines the initial value of the moment of inertia of the winding from measured values for the synchronous speed, for the time until the synchronous speed is reached, for the drive torque of the drive machine and for the initial value of the winding radius, as well as from predetermined values for the moment of inertia of the drive and the radius of the drive rollers of the belt drive.
  • a circuit arrangement is provided according to a further preferred embodiment of the invention, the starting value of the moment of inertia of the winding from measured values for the synchronous speed, for the time until the synchronous speed is reached, for the drive torque of the drive machine and from a predetermined value for the moment of inertia of the drive is determined.
  • roller carrier 3 with a belt drive 4, which can be pivoted from its normal unwinding position (FIG. 1) by a rotary drive (not shown) via an intermediate position (FIG. 2) into the adhesive position (FIG. 3).
  • roller carriers are designed with two arms or three arms.
  • the running roll (roll 2) is rotatably mounted on one arm of the roll carrier 3.
  • the running roll is identified in each case by the reference number 2, the individual stages of the winding being indicated by 2a, 2b, 2c during the unwinding process.
  • a web B is drawn off from the winding 2 in the direction of the arrow, for example a paper web which is fed to a train group (also not shown) via deflection rollers (not shown).
  • the new roller 1 has already been inserted on the other arm of the roller carrier 3.
  • the running roller 2a runs in the unwinding position of the roller carrier 3 under the belt drive 4.
  • the belt drive 4 is assigned an electromotive drive with an electrical machine 5, which is fed by a converter 6.
  • the converter 6 is one Control set 33 driven by ignition pulses, the control voltage of which is formed by a current regulator 32, to which a comparator 31 is connected upstream on the input side.
  • the electrical machine 5 is coupled to a tachometer generator 7 for generating a tacho voltage proportional to the actual speed value.
  • the web B should enter the downstream processing machine with a constant web tension, for example a printing machine.
  • the web tension is controlled by the belt drive 4.
  • the belt drive 4 is controlled by a control device with a position controller 8, a speed controller 13 and the subordinate current controller 32 depending on the position of a dancer roller, for example in such a way that the dancer roller 9 is in the middle of it Adjustment range remains.
  • the dancer roller 9 is weight-loaded or receives a pneumatic preload.
  • An actual value for the position of the dancer roller 9 is tapped at a schematically represented potentiometer 14 and compared in a comparator 10 with a position setpoint by an adjusting device 11.
  • the position difference controls the position controller 8, the output voltage of which forms the speed setpoint for the speed controller 13.
  • the setpoint speed value is compared in a further comparator 12 with the tachometer voltage of the tachometer generator 7 as the actual speed value, which is connected to the comparator 12 via the closed switching contact 23.
  • the control difference formed in the comparator 12 controls the speed controller 13, the output signal of which is supplied to the comparator 31 as a current setpoint via the switching contacts of switches 25 and 26 in the position shown.
  • the comparator 31 compares the current setpoint with that of a current transducer 34 detected actual current value compared and supplied to the current controller 32 as a control difference.
  • the output voltage of the current regulator 32 forms the control voltage for the control set 33 of the converter 6.
  • the output voltage of the speed regulator 13 determines the speed of the machine 5 and, via the belt drive 4, the speed of the winding 2a.
  • the problem with such a speed control lies in the considerable changes in the properties of the controlled system during the unwinding process.
  • the diameter of the roll of 1m to 0.1m decrease.
  • webs with different widths can be used in a range of approximately 1: 4.
  • the specific weight of the web material used can also vary. Accordingly, the mass of the wrap can change over a very wide range.
  • the mass of the winding has a significant share in the total moment of inertia of the controlled system.
  • the parameters mentioned can change the moment of inertia of the winding in a range greater than 1: 1000.
  • control parameters of the speed controller 13 are usually set such that the stability conditions are met in the entire control range. With such permanently set control parameters, however, the speed control cannot work optimally in the entire control range, since the route parameters change in a very wide range due to the large differences in the moment of inertia of the winding. Control parameters for the speed controller 13, which are optimized by a computing device 50, are therefore continuously determined from the route parameters and the speed controller is set accordingly.
  • the optimization condition (1) generally applies to the optimized loop gain: the optimization factor a for the desired control behavior can be chosen to be 0.7.
  • the delay time T u of the path is essentially the sum of the armature time constant of the machine 5 and the dead time of the converter 6. These times are independent of the moment of inertia of the winding. In this view, the delay time T u can be regarded as approximately constant.
  • the loop gain V K of the control loop is the product of the controller gain V R and the section gain V S.
  • the system gain V s is the product of all individual gains, for example the gains of the sensors, the subordinate controllers, the converter and the drive.
  • the distance gain V s is approximately independent of the moment of inertia of the winding and can therefore also be regarded as constant.
  • the loop gain V K is the product of the controller gain V R and the distance gain V S according to Eq. (2):
  • the time that the drive needs to move a new roll with a constant torque from standstill to a certain speed can be used accelerate.
  • Eq. (5) can be converted to Eq. (5.1) according to the initial value J o of the total moment of inertia related to the drive:
  • FIG. 2 shows the roll carrier in an intermediate position during the counterclockwise pivoting process from the unwinding position shown in FIG. 1 to the gluing position shown in FIG.
  • the belt drive 4 was lifted off and at the same time the switching contacts of the switching devices were reversed into the switching positions shown.
  • the speed control of the winding 2b is no longer carried out via the belt drive, but via the induction brake 17.
  • the actual position value from the dancer roller 9 is tapped at the potentiometer 14 and compared in the comparator 10 with the position setpoint by the setting device 11.
  • the output voltage of the position controller 8 forms the speed setpoint, which is compared in the further comparator 12 with an actual speed value.
  • This actual speed value is supplied in this position of the roller carrier via the closed switching contact 24 from the tachometer generator 19, which is coupled to the winding 2b.
  • the output voltage of the speed controller 13 is supplied to the control unit 36 of a further converter 16 via the switch contact of the changeover switch 25 and via an adapter as the control voltage.
  • the converter 16 is the actuator for the induction brake 17, which acts on the winding 2b.
  • a speed controller 30 and an upstream ramp generator 37 are provided.
  • the ramp generator 37 which can be designed, for example, as an integrator with a downstream limiter, leads the setpoint for the speed controller 30 according to a fixed ramp function to the synchronous speed n, at which the peripheral speed of the new roll matches the web speed.
  • the slope of the ramp function is selected so that the machine 5 is operated approximately with a constant armature current in this run-up phase.
  • a tachometer generator 21 is provided which is driven by the running web B via a friction wheel 22.
  • the tachometer voltage of the tachometer generator 21 is thus a measure of the web speed.
  • the required synchronous speed n s has a fixed relationship to this, since the peripheral speed of the new roll corresponds to the speed of the belt strap of the belt drive 4, which in turn is known via the speed of the work machine 5 and the transmission ratio of the belt drive.
  • the output voltage of the ramp generator 37 is compared with the tachometer voltage of the tachometer generator 7 in a comparator 29.
  • the control difference controls the speed controller 30.
  • the output voltage of the speed controller 30 is used via the changeover switch 26 as a setpoint for the lower-level current controller 32.
  • the new role is thus accelerated to the synchronous speed n via the speed control with the speed controller 30 and the subordinate current controller 32, the ramp generator 37 ensuring a smooth ramp-up with a largely constant armature current and thus also a largely constant drive torque.
  • the bonding operation is performed by pressing the expiring web B to the live flag with a K 15 provided new reel 1 by a brush roller 40. Behind the splice is of the old roll running web cut by a fly knife 41. Immediately after the gluing process, the belt drive takes over the speed control of the new roll. To do this, it is generally necessary to slow down the new roller.
  • the belt drive with the electrical machine 5 and the power converter 6 is therefore designed as a 4-quadrant drive, preferably with a power converter in countercurrent connection free of circulating current.
  • the ramp-up of the new role 1 is used to determine the values required to solve Eq. (6.2). First, the determination of the winding radius is described using FIG. 4
  • a marking 51 which is recognized by a probe 52, is attached to a disk attached to the winding core or the axis of the winding 2. The probe 52 generates a pulse as the mark 51 passes each revolution of the roll 2.
  • the web B drives a digital pulse generator 54 via a friction wheel 53, the pulse disk of which bears a larger number of markings which are scanned by a further probe 55.
  • the probe 55 thus generates a predetermined number of pulses for a certain web length.
  • the pulses of the probe 55 are counted by a counter 60.
  • the counting device is released by a first pulse from the probe 52 and counts the pulses from the probe 55 until a second pulse from the probe 52 arrives.
  • the number of pulses of the probe 55 between two successive pulses of the probe 52 is a measure of the web length drawn off during one revolution of the roll 2 and thus also a Measure of the radius R of the roll 2.
  • a further marking 56 is attached to a disk attached to the winding core or the axis of the new roll 1 and is recognized by a further probe 57.
  • the radius R Wo of the new roll 1 can be determined in a further counting device 61 in that the number of pulses of the probe 55 between two pulses of the probe 57 can be counted.
  • the determination of the radius R Wo thus takes place in that when the synchronous run is reached at the end of the start-up of the new roller 1, a switch 58 is closed by a corresponding command.
  • the counting device 61 now counts the pulses of the probe 55 during one revolution of the new roller 1.
  • the number of pulses of the probe 55 is directly a measure of the radius R Wo of the new roller 1.
  • the synchronous speed n is required, at which the speed of the running web B coincides with the peripheral speed of the new roll 1.
  • the synchronous speed n s can be derived from the speed of the machine 5 detected by the tachogenerator 7, taking into account the transmission ratio r / R Wo or directly the tachometer voltage of the tachometer generator 20 can be determined.
  • the machine 5 can in principle be regulated to a constant torque. For the present case, however, it is sufficient if the moment of the machine 5 is considered to be directly proportional to the armature current. It is then easily possible to regulate the armature current by configuring the ramp generator 37 accordingly.
  • the moment of inertia J m of the drive is known and can be assumed to be constant. It can be determined during commissioning.
  • the circuit arrangement 80 contains an integrator 81, which is connected to a potentiometer 83 via a switch 82 at the start of the startup of the new roller.
  • the switch 82 operated by a command stage 92 is opened again when the roller has reached the synchronous speed. This can be determined by monitoring the control difference, which controls the speed controller 30.
  • the integrator 81 thus integrates a constant input voltage until the synchronous speed is reached.
  • the output voltage of the integrator 81 is thus a measure of the ramp-up time t.
  • a divider 84 is connected downstream of the integrator 81, the dividend input of which is connected to the output of the integrator 81 and the divider input of which is connected to the tachometer generator 7.
  • the output of the division element 84 is connected to the one input of a multiplier 85, the second input of which is connected to a voltage which represents the armature current I a of the machine.
  • the armature current is a measure of the drive torque of the machine. In order to take the proportionality factors into account, the measuring voltage for the armature current is conducted via a potentiometer 86.
  • the output voltage of the multiplier 85 is compared in a comparator 87 with a voltage which is set to a value corresponding to the moment of inertia J M of the machine, for example at a further potentiometer 88.
  • the output voltage of the comparator 87 is fed to the one input of a multiplier 89, the other input is supplied with a voltage that corresponds to the value (R wo / r) 2 .
  • This voltage can be tapped, for example, at a potentiometer 90 which is at a voltage determined by the counting device 61 or whose tap can be changed by the counting device 61.
  • the output voltage of the multi-lizer 89 is a measure of the desired initial value J Wo of the moment of inertia of a winding under a belt drive. It is fed to the computer 50 via a switch 91.
  • the switch 91 is closed by the command stage 92 as soon as the synchronous speed has been reached and is opened again immediately after the takeover of the initial value J Wo of the moment of inertia of the winding.
  • T So the initial value of the time constant of the route is required. Given the assumption of a linear ramp-up, T So results from Eq. (7):
  • the time constant T S of the path which changes continuously as the winding radius P W decreases, can be determined using the relationship (8):
  • Equation (8.2g) is the function (4) we are looking for for a reel with a belt drive.
  • Eq. (2.4g) is continuously calculated by the computing device 50 and the optimized controller gain is predefined for the speed controller 13.
  • the optimization condition (12) applies for a good control of disturbance variables at 20% overshoot: Since - as already mentioned - the delay time T of the section can be regarded as constant, the reset time T I of the speed controller can be set permanently for such a control behavior.
  • the optimized reset time T I of the speed controller 13 can be continuously determined from Eq. (12).
  • the running roller 2c is driven directly by an electric machine 63, or braked.
  • the speed of the machine 63 and thus the speed of the running roller 2c is detected by a tachometer generator 64.
  • the machine 63 is fed by a converter 65, which is designed as a four-quadrant actuator.
  • the speed of the machine 63 is regulated by a speed controller 69, to which a current controller 67 is subordinate.
  • a position control with a dancer roller 9 for obtaining an actual position value, an adjusting device 11 for setting a desired position value, a comparator 10 for forming the position difference from the desired position value and actual position value and a position controller 8 are provided.
  • the exit The voltage of the position controller 8 forms the setpoint for the speed controller 69, the actual value of which is supplied by the tachometer generator 64.
  • the controller gain and the reset time of the speed controller 69 are set by a computing device 70, which will be explained later.
  • the output signal of the speed controller 69 is the target value for the lower-level current controller 67, which is compared in a comparator 68 with the actual current value.
  • the output voltage of the subordinate current regulator 67 controls the ignition angle of the ignition pulses of a headset 66.
  • the new roller 1 is assigned a direct drive of the same design. Its structure is described together with its function in accelerating the new role to the synchronous speed n.
  • the electric machine 71 for driving the new roller is fed by a converter 73, which is also designed as a four-quadrant actuator.
  • a speed controller 77 with a subordinate current controller 75 is assigned to the converter 73.
  • the ramp function generator 37 is again active, which increases the setpoint for the speed controller 77 according to a predetermined ramp function until the synchronous speed is reached.
  • the output signal of the ramp generator 37 is compared in a comparator 78 with the actual speed value tapped by a tachometer generator 72. The speed difference controls the speed controller 77.
  • the output voltage of the speed controller 77 forms the target value for the subordinate current controller 75 and is compared with the actual current value in a comparator 76.
  • the control difference controls the current controller 75.
  • the output voltage of the current regulator 75 is the control voltage for the control set 74 for generating the ignition pulses for the converter 73.
  • the new roller 1 is accelerated to the synchronous speed in the manner described.
  • the data are determined which are necessary for calculating the initial value of the moment of inertia of the new roll and the initial value of its radius.
  • the specification of optimized controller parameters by the computing device 70 to the speed controller 69 is ended.
  • the computing device 70 takes over the data determined when the new roll starts up and calculates the initial value of the moment of inertia of the new roll and the initial value of the radius of the optimized controller parameters for the speed control of the new roller 1 following the gluing process.
  • the ramp generator 37 is switched off and instead the output signal of the position controller 8 is switched to the comparison point 78 of the speed controller 77.
  • the starting values of the optimized controller parameters are input to the speed controller 77 by the computing device 70.
  • the computing device 70 then continuously determines the optimized controller parameters from the decrease in the radius of the winding.
  • the drive 63 is switched off, the remaining roll is removed and a new roll is inserted.
  • the drive 63 is stopped until the next gluing process.
  • Equations (1) to (3) apply to the controller optimization in the same way for the required calculations:
  • the initial value of the moment of inertia of the winding can thus be calculated according to Eq. (14.1d) if one considers the synchronous speed n s , the run-up time t to
  • Equation (8) again applies to the instantaneous value of the time constant T S of the segment:
  • Eq. (15.1) takes the form (15.2):
  • the circuit arrangement 100 contains an integrator 96, which is connected to a potentiometer 93 via a switch 94 at the start of the startup of the new roller.
  • the switch 94 operated by a command stage 103 is opened again when the roller has reached the synchronous speed n s .
  • the integrator 96 thus integrates a constant input voltage until the synchronous speed is reached.
  • the output voltage of the integrator 96 is a measure of the ramp-up time t.
  • the integrator 96 is followed by a division element 97, the dividend input of which is connected to the output of the integrator 96 and the divisor input of which is connected to the tachometer generator 72, which is assigned to the direct drive 71 for the new / reel 1 in the illustration in FIG.
  • the divider input of the division element 97 is connected to the other tachometer generator 64.
  • the output of the division element 97 is connected to the one input of a multiplier element 98, the second input of which is connected to the current measuring transducer 79 for detecting the armature current of the direct drive 71 of the new roller 1.
  • this input of the multiplier 98 is connected to the current measuring transducer 104 of the other direct drive.
  • the armature current of the machine accelerating the new roller 1 is in turn a measure of the drive torque.
  • the measuring voltage for the armature current is passed through a potentiometer 105.
  • the output voltage of multiplier 98 is compared in a comparator 99 with a voltage which is set to a value corresponding to the moment of inertia J of the machine, for example on a further potentiometer 102.
  • the output voltage of the comparator 99 is a measure of the desired initial value J Wo of the moment of inertia of the winding at a Direct drive. It is fed to the computer 70 via a switch 101.
  • the switch 101 is closed by the command stage 103 as soon as the synchronous speed has been reached and is opened again immediately after the initial value of the moment of inertia has been transferred to the computer 70.
  • the speed controller 13 contains an operational amplifier, the feedback of which is connected to the series connection of a capacitor and an ohmic resistor. The inverting input of the operational amplifier is acted upon by the control difference via an input resistor and a multiplier 106.
  • the readjustment time of the controller which is defined as the product of the resistance value of the input resistance in the inverting input and the capacitance of the capacitor in the feedback loop, remains constant, since the Time constant of the route does not change.
  • the controller gain is the quotient of the resistance value of the resistance in the feedback and the input resistance. This gain, which is predetermined by the controller circuitry, can be changed by a factor V, which is fed to the multiplier 106 at its second input.
  • the factor V is supplied by the computer 50 as a corresponding voltage.
  • the computer 50 continuously calculates Eq. (2.4 g) to determine the optimized controller gain.
  • the computer 50 requires the initial value J Wo of the moment of inertia of the winding, which is input to it by the circuit arrangement 80 according to FIG. 5 at the end of the acceleration process of the new roll.
  • the computer 50 also requires the initial value R Wo and the current value R of the winding radius. These values are supplied to him in the manner described for FIG. 4.
  • the optimized controller gain is continuously determined by a computer 70 according to Eq. (2.5d).
  • the required initial value J Wo of the moment of inertia of the winding is entered by the circuit arrangement 100 according to FIG. 7 at the end of the acceleration of the new roll.
  • the current winding radius R W is determined in a known manner, for example as shown in FIG. 4. The initial value of the winding radius is not required in this case.
  • a capacitor with variable capacitance can be switched on in the feedback of the speed controller.

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  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
EP80102079A 1979-05-03 1980-04-17 Dispositif de réglage pour un dévidoir Expired EP0018555B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19792917868 DE2917868A1 (de) 1977-07-19 1979-05-03 Regelanordnung fuer einen rollentraeger
DE2917868 1979-05-03

Publications (2)

Publication Number Publication Date
EP0018555A1 true EP0018555A1 (fr) 1980-11-12
EP0018555B1 EP0018555B1 (fr) 1982-10-27

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EP80102079A Expired EP0018555B1 (fr) 1979-05-03 1980-04-17 Dispositif de réglage pour un dévidoir

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EP (1) EP0018555B1 (fr)

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EP0189782A2 (fr) * 1985-01-28 1986-08-06 Japan Tobacco Inc. Appareil de commande du débit dans un système d'alimentation en matériau d'emballage
EP0249114A1 (fr) * 1986-06-12 1987-12-16 Wolff Walsrode Aktiengesellschaft Dispositif et procédé de déroulage pour des matériaux hautement élastiques
FR2629067A1 (fr) * 1988-03-28 1989-09-29 Polygraph Leipzig Procede et installation pour accelerer une bobine de remplacement dans une installation de traitement de produits en bandes, en particulier pour des rotatives d'imprimerie
DE4103477A1 (de) * 1990-06-11 1991-12-12 Plamag Plauener Maschinenbau A Regelanordnung fuer abwickeleinrichtung fuer bahnen
CN103359515A (zh) * 2013-07-27 2013-10-23 杭州新余宏机械有限公司 卷材尾端自动换接料装置及方法
EP2246760B1 (fr) * 2009-04-30 2016-10-05 Robert Bosch GmbH Procédé de détermination d'au moins un paramètre de réglage d'une articulation de réglage dans un circuit de réglage de tension de bande pour une machine de traitement

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DD153485A3 (de) * 1979-08-16 1982-01-13 Guenter Despang Anordnung zur steuerung von abwickeleinrichtungen fuer bahnfoermiges gut
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US5595803A (en) 1983-03-31 1997-01-21 P. P. Payne Limited Filmic packaging material and a tear adherent thereto
US5203935A (en) * 1983-03-31 1993-04-20 Payne Packaging Limited Method of producing packaging material having a tear tape
US4752842A (en) * 1984-01-25 1988-06-21 Sony Corporation Tape driving system for a magnetic transfer apparatus
US4691499A (en) * 1984-04-16 1987-09-08 Fuji Machinery Company, Ltd. Method of tensioning a web of packaging material
DE3634662A1 (de) * 1985-10-11 1987-04-16 Hitachi Ltd Bandtransporteinrichtung und -verfahren
US4729519A (en) * 1986-10-14 1988-03-08 Webquip Corporation Web handling apparatus
US4729522A (en) * 1986-10-14 1988-03-08 Webquip Corporation Web handling apparatus
US5253819A (en) * 1991-09-04 1993-10-19 Butler Automatic, Inc. Speed match splicing method and apparatus
US5326041A (en) * 1992-11-02 1994-07-05 Alexander Machinery, Inc. Web roll control and method
US5503349A (en) * 1993-07-09 1996-04-02 Certek Corporation Roll-stand brake
DE19616322B4 (de) * 1995-04-28 2007-01-04 MEGTEC Systems, Inc., De Pere Vertikale Klebepresse
US5671895A (en) * 1996-03-07 1997-09-30 Martin Automatic, Inc. System and method for controlling the speed and tension of an unwinding running web
DE10024120B4 (de) * 2000-05-18 2005-08-25 Maschinenfabrik Wifag Rollenwechsler mit Motorbremse
US7458538B2 (en) * 2002-11-13 2008-12-02 Fabio Perini S.P.A. Unwinding device for reels of web material with dual drive mechanism and relative unwinding method
EP1697243A2 (fr) * 2003-12-01 2006-09-06 KOENIG & BAUER Aktiengesellschaft Changeur de bobines et procede pour effectuer un changement de bobines automatique
JP4426370B2 (ja) * 2004-04-30 2010-03-03 株式会社小森コーポレーション 帯状体供給装置の制動力制御方法及び装置
FI119806B (fi) * 2007-02-06 2009-03-31 Metso Paper Inc Menetelmä käytön kapasiteettireservin hyödyntämiseksi kuiturainan rullauksessa
DE102007049680A1 (de) * 2007-10-17 2009-04-23 Robert Bosch Gmbh Verfahren zum Berechnen des Durchmessers einer Warenbahnwicklung auf einer Rolle sowie Wickelsteuerungssystem
US9434573B2 (en) 2010-10-25 2016-09-06 The Procter & Gamble Company Alternative method for reducing web feed rate variations induced by parent roll geometry variations
US8757535B2 (en) 2010-10-25 2014-06-24 The Procter & Gamble Company Method for reducing web feed rate variations induced by parent roll geometry variations
US9434572B2 (en) 2010-10-25 2016-09-06 The Procter & Gamble Company Alternative method for reducing web feed rate variations induced by parent roll geometry variations
US8733687B2 (en) 2010-10-25 2014-05-27 The Procter & Gamble Company Alternative apparatus for reducing web feed rate variations induced by parent roll geometry variations
US8733685B2 (en) 2010-10-25 2014-05-27 The Procter & Gamble Company Apparatus for reducing web feed rate variations induced by parent roll geometry variations
US8740130B2 (en) 2010-10-25 2014-06-03 The Procter & Gamble Company Alternative method for reducing web feed rate variations induced by parent roll geometry variations
US8733686B2 (en) 2010-10-25 2014-05-27 The Procter & Gamble Company Alternative apparatus for reducing web feed rate variations induced by parent roll geometry variations
US9221641B2 (en) * 2012-05-08 2015-12-29 Kimberly-Clark Worldwide, Inc. Controller and system for controllably rotating a roll of material
DE102017131417A1 (de) * 2017-12-29 2019-07-04 Weber Maschinenbau Gmbh Breidenbach Vorrichtung zum Verpacken von Objekten

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EP0189782A2 (fr) * 1985-01-28 1986-08-06 Japan Tobacco Inc. Appareil de commande du débit dans un système d'alimentation en matériau d'emballage
EP0189782A3 (en) * 1985-01-28 1988-02-24 Japan Tobacco Inc. Apparatus for controlling amount of delivery in wrapping material feed system
EP0249114A1 (fr) * 1986-06-12 1987-12-16 Wolff Walsrode Aktiengesellschaft Dispositif et procédé de déroulage pour des matériaux hautement élastiques
FR2629067A1 (fr) * 1988-03-28 1989-09-29 Polygraph Leipzig Procede et installation pour accelerer une bobine de remplacement dans une installation de traitement de produits en bandes, en particulier pour des rotatives d'imprimerie
DE4103477A1 (de) * 1990-06-11 1991-12-12 Plamag Plauener Maschinenbau A Regelanordnung fuer abwickeleinrichtung fuer bahnen
EP2246760B1 (fr) * 2009-04-30 2016-10-05 Robert Bosch GmbH Procédé de détermination d'au moins un paramètre de réglage d'une articulation de réglage dans un circuit de réglage de tension de bande pour une machine de traitement
CN103359515A (zh) * 2013-07-27 2013-10-23 杭州新余宏机械有限公司 卷材尾端自动换接料装置及方法

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EP0018555B1 (fr) 1982-10-27
US4278213A (en) 1981-07-14

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