EP2328696B1 - Procédé pour commander et/ou régler un mouvement de glissement d'un rouleau relativement à une bande, dispositif de commande et/ou de réglage, code de programme lisible par machine, support d'enregistrement et installation industrielle - Google Patents

Procédé pour commander et/ou régler un mouvement de glissement d'un rouleau relativement à une bande, dispositif de commande et/ou de réglage, code de programme lisible par machine, support d'enregistrement et installation industrielle Download PDF

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Publication number
EP2328696B1
EP2328696B1 EP09780693A EP09780693A EP2328696B1 EP 2328696 B1 EP2328696 B1 EP 2328696B1 EP 09780693 A EP09780693 A EP 09780693A EP 09780693 A EP09780693 A EP 09780693A EP 2328696 B1 EP2328696 B1 EP 2328696B1
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EP
European Patent Office
Prior art keywords
control
roll
roller
strip
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.)
Active
Application number
EP09780693A
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German (de)
English (en)
Other versions
EP2328696A1 (fr
Inventor
Ralf Smukalski
Hans-Joachim Felkl
Wilfried Tautz
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
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 Siemens AG filed Critical Siemens AG
Priority to PL09780693T priority Critical patent/PL2328696T3/pl
Publication of EP2328696A1 publication Critical patent/EP2328696A1/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
    • 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
    • B65H23/188—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in connection with running-web
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
    • B21D1/05—Stretching combined with rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/48—Tension control; Compression control
    • 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
    • B65H2301/30—Orientation, displacement, position of the handled material
    • B65H2301/31—Features of transport path
    • B65H2301/312—Features of transport path for transport path involving at least two planes of transport forming an angle between each other
    • B65H2301/3123—S-shaped
    • 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
    • B65H2601/00—Problem to be solved or advantage achieved
    • B65H2601/20—Avoiding or preventing undesirable effects
    • B65H2601/25—Damages to handled material
    • B65H2601/253—Damages to handled material to particular parts of material
    • B65H2601/2532—Surface
    • 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
    • B65H2601/25—Damages to handled material
    • B65H2601/254—Permanent deformation
    • 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
    • B65H2601/50—Diminishing, minimizing or reducing
    • B65H2601/52—Diminishing, minimizing or reducing entities relating to handling machine
    • B65H2601/522—Wear of friction surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/173—Metal

Definitions

  • the invention relates to a method for controlling and / or compensating for a sliding movement of a roller relative to a belt. Furthermore, the invention relates to a control and / or regulating device, a machine-readable program code, a storage medium and an industrial plant for carrying out the method.
  • Roller assemblies also called a tensioning roller set, as used for the invention are, for example.
  • a tensioning roller set When rolling metal strip, especially in cold rolling, and treatment lines, such as. used in the coating, pickling, heating or similar processes of metal strips.
  • These roller assemblies are used to adjust the belt tension for a metal belt to be machined.
  • the belt tension substantially influences the machining process, for example the decrease in thickness during rolling of a rolling stock.
  • roll composites can also be used in the textile industry, for example, for textile tapes or in the plastics industry or other industries in which strip-shaped material is processed, and thus also the method disclosed in the context of this application.
  • Slipping rollers can also lead to a significant loss of quality in the metal band produced or treated or to be treated. By slipping the metal strip over a roller, for example, its surface can be damaged, which possibly leads to production committee.
  • the invention is therefore based on the object to detect a slipping of a belt relative to a role in a system and this, in particular during operation of the system, to reduce or remedy.
  • the object is achieved by means of a method for controlling and / or compensating for a sliding movement of a roller relative to a belt, in particular a cold strip to be processed in a metalworking device, which is guided at an adjustable belt speed by a roller assembly comprising the roller and at least one further roller, wherein an occurrence of the sliding movement is monitored by detecting at least one technical operating size of the roll, and that when a sliding movement of the roll an actual peripheral speed of the roll and / or at least one of the at least one further roll and / or the belt speed are changed such that the Actual circumferential speed of the slipping roller and the belt speed are approximated to each other, wherein at least one of the rollers of the roller assembly as a leading role for specifying an operating parameter and at least one of the rollers as the predetermined Betri ebsparameter using the following role is formed, wherein a control of the peripheral speed of the at least one leading role by means of a PI control, wherein a control of the peripheral speed of at least one of the following roles
  • a method for detecting a sliding movement of a roller relative to a belt, in particular metal belt can be used to monitor the occurrence of belt slips.
  • the monitoring preferably takes place constantly during operation the role of composite, even during any necessary control interventions to resolve the determined band slippage.
  • At least one first operating variable of a first roller of the roller assembly is determined. Furthermore, at least one second operating variable of at least one of the further rollers of the roller assembly is determined. Based on a determined deviation of the first of the second operating variable, a sliding movement can be detected early and safely.
  • an operating variable it is advantageous to use a moment of the motor driving the monitored rollers and / or the peripheral speed of the roller.
  • a detection of a sliding movement can be carried out as follows:
  • a sliding movement relative to the metal band for example. Detected when the slave role at a motor or generating torque of the master roller driving motor for a predetermined time interval has a peripheral speed, the higher or lower is, as the peripheral speed of a comparison role, which is also covered by the roller assembly.
  • a slave pulley is considered to be slipping if, at the moment of the motor driving the master pulley, it has a revolving speed which is higher by more than 0.015 m / s for a period of more than two seconds is the revolution speed of the master roll, or at regenerative moment of the master roll driving motor has a circulation speed slower by more than 0.015 m / s for a period of more than 2 seconds, than the rotational speed of the master roll ,
  • a sliding movement relative to the metal band for example. Detected if the slave rollers at a motor or generator torque of the master roller driving motor for a predetermined time interval each have a rotational speed, the lower or is higher than the rotational speed of the master roll.
  • a master-role is then recognized as slipping, for example, when motor torque of the leading role driving motor, all the following roles have a circulation speed by more than 0.015 m / s for a period of is less than the idler speed of the leading roller for more than two seconds or, in the case of regenerative torque of the idler motor, the peripheral speeds of all following rollers are more than 0.015 m / s for a period of more than 2 seconds is higher than the rotational speed of the leading roller.
  • a motor torque is meant a torque at which the motor driving the roller drives the belt.
  • a regenerative motor is meant a torque at which the belt drives the motor driving the roller.
  • a role of a roller assembly is referred to, if this is the leading role in normal operation, that is, when no belt slipping in the roller assembly, which is in particular PI-controlled.
  • a role of a group of rolls is referred to as a slave roll, if this is a following roll in normal operation, which in particular is P-controlled.
  • that role is the master role in a role composite on which the largest Werner GmbH occurs or at which the effect caused by Glaswoods Sitch greatest force acts in the role composite.
  • Roller assemblies are understood to be tensioning roller sets which are designed for the targeted adjustment of a belt tension, in particular tension, of a belt and which have at least two rollers.
  • This method has the particular advantage that it is automated during operation of the plant, i. without the intervention of operating personnel, which on the one hand saves resources, increases the operational safety of the installation by rapid intervention and the operation of the installation as such, e.g. In terms of throughput, is improved. It is not necessary to switch off the system to eliminate belt slipping.
  • Operating parameters can be understood as meaning all control parameters which influence the operation of a roll. For example. These may be control components, such as an I-part of a PI-controlled peripheral speed of a leading role, which is used for a P-control of the peripheral speed of a following role. Also come as operating parameters operating variables, such as rotational speed, torque, speed, etc. are taken into account. In addition, further operating parameters in the form of various desired and actual values are available to the person skilled in the art.
  • the leading role and the following role interact with each other, with operating parameters of the leading role influencing the operating parameters of the following role.
  • By changing the regulation for a specific role from P-control operation to PI control operation it is achieved that, in particular, the control dead time for this role is reduced.
  • the actual peripheral speed of at least one of the at least one following roller is thereby adapted so that the slippage of one of the rollers in the roller assembly is eliminated.
  • significant changes in throughput of the system can be avoided by changing from P-mode control to PI control mode, for example by switching a peripheral speed controller associated with the particular roller, since the belt speed in the roller assembly can preferably be maintained.
  • P-controllers and PI-controllers are well known from control engineering and will not be explained further here.
  • At least one of the at least one following roller switches or controls the regulation of the at least one following roller from a P control to a PI control.
  • This causes the skidding following roller (s), i. Slave roll (n,) again follows the tape speed.
  • the master roll engages the tape no negligible polishing effect will occur on at least one slipping subsequent roll, i. Slave role, up.
  • control of all the following roles is changed from a P-control to a PI control in case of slipping movement of the leading role or switched.
  • the switching of the control operation is preferably carried out in a period of time after the occurrence of the sliding movement, in which the following rollers still have fixed band contact, ie a moment of the following rollers driving motors has not fallen below a predetermined threshold, so that the strip tension of the guided belt is maintained ,
  • control is switched back from a PI control to a P control of at least one of the at least one following roller as a function of a measure of an amount of torque of the motor driving this roller and / or as a function of the desired value Circumferential speed of the leading roller and / or as a function of the belt speed.
  • a switch back of the controller takes place when the role recognized as slipping the tape again. Then, the controller of the respective role is switched again from a PI control operation in a P control operation.
  • a threshold value can be used for an amount of a relative actual engine torque achieved by the motor driving the roller detected as being slipping. This is determined by the moment required for the roller to which a certain force acts due to the drop in tension over the roller. Possibly.
  • a gear factor is to be considered here. This required torque is set in relation, for example in the form of a quotient, with a normalization moment which, for example, is the maximum torque permitted at the motor shaft. From this, the relative target torque of the motor is formed. If the relative actual torque exceeds a certain part of the relative target torque, about 50 percent, then the role is again referred to as gripping detected and there is a switching back of the controller from PI control mode in the P-control mode.
  • a limit target revolution speed of the leading roller i. Master role, and / or a limit tape speed are provided, which falls below a switching or switching back of the controller takes place.
  • the probability of occurrence of belt chutes is significantly reduced, so that in There is generally no need to change the control mode of the controller from a P control operation in a PI control operation and thus also no need to change from a PI control operation to a P control operation.
  • this has the disadvantage that the throughput of the belt processing equipment is reduced due to the reduced belt speed.
  • a moment of the motor driving the roller is changed essentially without a jump when switching and / or switching back the control. This ensures that the rotational speed of the transferred from the slipping state in the gripping state role is not changed abruptly. An abrupt change in the speed of rotation of the roll can lead to re-occurrence of belt slippage. This is avoided by essentially instantaneously changing a moment of the motor driving the roller.
  • control and / or regulating device for a roller assembly of a system for processing metal strip, in particular cold rolling mill and / or treatment line, with a machine-readable program code which has control commands which in the execution of the Control and / or regulating device for carrying out the method according to one of claims 1 to 6 cause.
  • the object is also achieved by machine-readable program code for a control and / or regulating device for a roller assembly of a system for processing metal strip, in particular cold rolling mill and / or a treatment line, wherein the program code has control commands that the control and / or regulating device for performing of the method according to any one of claims 1 to 6.
  • an industrial plant for processing strip, in particular metal strip, with at least one roller composite comprising at least two rollers for adjusting a belt tension of the metal strip and with a control and / or regulating device according to claim 7 , which is operatively connected to at least one device for operating the rollers.
  • the treatment line 1 may include a plurality of areas for processing the metal strip B, for example, a rolling area, a metal strip coating area, a metal strip cleaning area, a cold strip thermal conditioning area, and others. These are in FIG. 1 not shown.
  • the treatment line 1 has at least one roller assembly 2.
  • the roller assembly 2 comprises in the embodiment four rollers 3, which guide the cold strip.
  • the roller assembly 2 is used to adjust the belt tension of the metal strip B in the treatment line 1.
  • the roller assembly 2 is disposed between areas of the treatment line 1, in which different belt tensions for the purpose of processing the metal strip B are set.
  • roller assemblies with more or fewer rollers than four in an industrial plant, in particular for the above-mentioned treatment line 1.
  • a roller composite has at least two rollers.
  • the roller assembly 2 comprises in the exemplary embodiment, a leading roller 3-1, which follows a predetermined target peripheral speed. Furthermore, the roller assembly 2 comprises three following rollers 3-2. The following rollers 3-2 and the leading roller 3-1 have the same target circumferential speed. However, the following rollers 3-2 are operated with a P control while the leading roller 3-1 is operated with a PI control. Not all rollers 3-1 or 3-2 must be constantly driven, but at least the leading roller 3-1.
  • That role is the leading role 3-1, in which the largest absolute Buchüber GmbH within the roller assembly 2 occurs.
  • Under absolute train translation is the quotient of higher applied to the role of actual or target tension and lower on the role of the present or target tensile stress understood. Possibly.
  • the master function of a roll can be changed from a first roll to another roll during non-slip normal operation.
  • roller assembly 2 for an industrial plant 1
  • at least one roller 3 of the roller assembly 2 is thus preferably designed as a leading roller 3-1.
  • the respective rollers 3 of the roller assembly 2 are each assigned drives 4, which drive the respective roller 3.
  • the respective drive unit 4 comprises at least one motor, as well as possibly a transmission for transmitting mechanical energy to the respective roller 3 of the roller assembly 2.
  • the peripheral speed of the rollers 3 is set with the drive units 4.
  • the drive units 4 and, if appropriate, the rollers 3 driven by the drive units 4 are in each case operatively connected to a control and / or regulating device 5.
  • the control and / or regulating device 5 By depositing a machine-readable program code 7, which is supplied by means of a storage medium 6, on which this machine-readable program code 7 is stored, the control and / or regulating device 5, the control and / or regulating device 5 is designed such that it in execution of the deposited program codes 7 can cause the implementation of an embodiment of the method according to the invention.
  • the program code 7 is stored on the control and / or regulating device 5 programmed memory.
  • the control and / or regulating device 5 operating variables of the rollers 3 of the roller assembly 2 are supplied, based on which the control and / or regulating device 5 an occurrence of Band slips in the roller assembly 2 monitored for a respective role 3. If belt slippage occurs for a roller 3, the belt slippage for the respectively recognized roller 3 is reduced or eliminated by executing the program code 7 stored in the control and / or regulating device 5.
  • FIG. 2 shows a schematic, exemplary flowchart for performing a method for controlling and / or compensating for a sliding movement of a roller, which in the form of a machine-readable program code, for example on the control and / or regulating device 5 of FIG. 1 can be deposited.
  • the flowchart in FIG. 2 assumes that when starting the procedure, the tape is already threaded into the role composite.
  • a first method step 20 the band is guided through the roller assembly, as is usually the case during operation of a treatment line 1 FIG. 1 the case is.
  • a continuous monitoring of the rollers of the roller assembly takes place on a sliding movement.
  • the monitoring preferably takes place permanently as long as the roller assembly is operated.
  • operating variables of the rollers preferably all rollers, for example their peripheral speed and / or their actual torques, are fed to a control and / or regulating device.
  • the belt speed of the metal strip can also be detected and fed to the control and / or regulating device 5.
  • a sliding movement relative to the metal band is detected when the roller has a circumferential speed which is higher or lower at a motor or generator torque of the motor driving the leading roller for a predeterminable time interval.
  • a comparison roller which is also included in the roller assembly.
  • a following role 3-2 out FIG. 1 For example, it is considered to be slipping if, at the moment of the motor driving the following roller, it has a rotational speed higher than the leading roller speed by more than 0.015 m / s for a period of more than two seconds, or if it is regenerative Moment of the leading role driving motor has a circulation speed that is slower than more than 0.015 m / s for a period of more than 2 seconds, as the rotational speed of the leading role.
  • the leading role 3-1 FIG. 1 detected as slipping when, for example, at engine torque of the leading role driving motor, all the following rollers have a rotational speed which is greater than 0.015 m / s for a period of more than two seconds in amount less than the rotational speed of the leading role or at generator torque of the leading roller driving motor, the peripheral speeds of all following rollers are more than 0.015 m / s for a period of more than 2 seconds in amount higher than the circulating speed of the leading roller.
  • a motor torque is meant a torque at which the motor driving the roller drives the belt.
  • a regenerative motor is meant a torque at which the belt drives the motor driving the roller.
  • a relative movement of the strip occurs to a circumference of a roll of the roll composite, then according to FIG. 2 in a method step 22 queried whether the sliding movement is present in a leading role.
  • a leading role is understood in the context of this embodiment, a role whose peripheral speed control is done by means of a PI control and the target peripheral speed is arbitrarily specified. Frequently, such a leading role is also referred to as master role or Speedmaster.
  • FIG. 2 queried in a method step 23, if necessary in addition to a subsequent role of the roller assembly slips.
  • the following role is understood in the context of this embodiment, a role whose circulation speed control in normal operation, i. in a metal band cross-operating state, via a P-control, wherein an I-part of the PI controller of the leading role for the P-controller of the following role is taken.
  • This I component which has been taken over for the following role, can possibly be assigned a weighting factor.
  • the target peripheral speed of a following roller and the target peripheral speed of the leading roller are usually identical.
  • a switching of the control mode of the peripheral speed controller of all subsequent rollers from a P-control mode to a PI control mode takes place. This ensures the fastest possible adaptation of the peripheral speeds of the following rollers to the belt speed, whereby a shutdown of the system, here about a treatment line, can be avoided in a sliding leading role as a result. A loss of control over the belt tension of the belt can also be avoided.
  • a method step 26 corresponding operating variables are again detected by this for monitoring the band slippage of the leading roller. From these it is determined whether further, i. After changing the control mode from P-control to PI control, for all following rollers, still slipping.
  • a method step 27 it is queried whether the slippage of the leading roller has been eliminated. If this is not the case, the corresponding PI control operation is retained for all following roles. These changes are retained until the leading role slip has been resolved.
  • control mode is switched back from a PI control mode to a P-mode control mode for all following rollers.
  • a torque limit is predetermined, which must be reached or exceeded by the motor driving the role, so that the role is recognized as gripping and thus no longer slipping.
  • This is for example, at 50% of the relative engine torque of the case.
  • the relative engine torque is formed, for example, from the desired torque, formed from the force applied to a roller and the radius of the roller, and possibly a gear factor, and the maximum permissible torque of the motor shaft. For this purpose, a varied percentage may also be taken, provided that this appears suitable with regard to the respective plant.
  • the presence of a sliding movement can then be recognized or considered as eliminated if, for example, the deviation of a belt speed from an actual peripheral speed of a roller exceeds or falls below a definable limiting value, which may be determined from plant-specific tests.
  • the switching back of the control mode of the peripheral speed controller from the PI control mode to the P control mode is carried out such that the moments of the following rollers driving motors are not changed abruptly. This avoids that an abrupt change in the peripheral speed of the following rollers caused by this again initiates a belt slippage for one of the rollers of the roller assembly.
  • a query is made as to whether the method should be ended. If this is not the case, the monitoring of all rollers of the roller assembly is continued in the presence of a sliding movement for a roller relative to the belt.
  • a step 25 the normal operation of the peripheral speed controller of the slipping following roller is switched over from a P control operation to a PI control operation. This ensures that the peripheral speed of the following roller approaches the belt speed again as quickly as possible.
  • a method step 28 operating variables of the following roller identified as slipping in method step 23 are detected. From these operating variables it is determined whether the corresponding following role continues to slip even after switching over the control operation of the peripheral speed controller. This takes place, for example, according to the method described at the beginning of the description of the drawing for detecting belt slips of the following rollers.
  • the operating variables ascertained in method step 28 are preferably compared by means of predefinable, optionally plant-specific threshold values whose overshoot or undershoot gives information as to whether a sliding movement is present or not.
  • step 29 it is queried whether the slippage of the roller has been eliminated. If this is not the case, the operating variables of the corresponding roller for monitoring the sliding movement continue to be recorded. Further, the following role continues to be operated with changed control operation of the peripheral speed controller.
  • step 29 If a query is made in step 29 as to whether the slippage has been remedied and if this has been found to be eliminated, then the control operation of the following roller is changed from a PI control operation to a P control operation on the one hand.
  • a torque limit is predetermined, which must be reached or exceeded by the motor driving the following roller, so that the following roller is again recognized as being gripping and therefore no longer slipping.
  • the relative engine torque is formed, for example, from the desired torque, formed from the force applied to a roller and the radius of the roller, and possibly a gear factor, and the maximum permissible torque of the motor shaft. For this purpose, a varied percentage may also be taken, provided that this appears suitable with regard to the respective plant. Nor is necessarily the use of the here described relative engine torque of the following role driving motor required.
  • a query is made as to whether the method should be ended. If this is not the case, the process continues to be carried out in order to identify and eliminate belt slips within the roller assembly.
  • FIG. 3 shows a schematic flow diagram for an alternative embodiment of the method according to the invention.
  • the strip is first guided through the roller assembly.
  • a method step 21 there are recorded operating variables of the respective rollers of the roller assembly in order to monitor them with regard to a sliding movement of band relative to a roller of the roller assembly.
  • a query is made as to whether a roll is recognized as slipping. If this is not the case, the slippage continues to be monitored until a slipping motion is detected.
  • a reduction of the strip speed of the strip guided by the roll composite is effected in a method step 34 by a control and / or regulating device.
  • a control and / or regulating device By reducing the belt speed, the likelihood of slipping is reduced, so that it can be assumed that the slipping roller picks up again at a certain threshold belt speed.
  • the reduction of the belt speed preferably takes place as a function of the intensity of the detected sliding movement, for example the amount of the torque difference present between the set torque and the actual torque in the present sliding movement.
  • the target circumferential speed of the slipping roller or even the non-slipping rollers of the roller composite is to be adapted to the changed belt speed accordingly.
  • a method step 35 once again one or more operating variables of the rollers of the roller assembly are detected in order to detect the presence of belt chutes within the roller assembly.
  • step 36 it is queried whether the slippage of the roller has been eliminated. If this is not the case, then in step 34, the belt speed is further reduced.
  • step 36 The reduction of the belt speed and the check whether the slippage has been eliminated are continued until, in step 36, it is stated that there is no more slipping movement of the belt relative to the roller.
  • the belt speed of the belt can be increased again by the roller assembly in order to increase the throughput of the treatment line.
  • this is associated with the risk that again a belt slippage occurs in the role composite.
  • a query is made as to whether the method should be ended. If this is not the case, continuous monitoring of the tape's guiding process by the roll group continues.
  • step 32 whether the procedure should be terminated, can be affirmed. This ends the procedure.
  • a disadvantage of the according FIG. 3 The method used is that the system is subject to high throughput fluctuations to avoid belt slippage. Nevertheless, this variant of the invention also considerably improves the operation of strip processing industrial plants, in particular rolling mills and / or cold strip processing lines.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Control Of Heat Treatment Processes (AREA)
  • Control Of Metal Rolling (AREA)
  • Control Of Transmission Device (AREA)

Abstract

L'invention concerne une installation industrielle (1), un dispositif de commande et/ou de réglage (5), un code de programme (7) lisible par machine, un support d'enregistrement (6) et un procédé pour commander et/ou régler un mouvement de glissement d'un rouleau (3, 3-1, 3-2) relativement à une bande (B), notamment un feuillard laminé à froid dans une installation de métallurgie, ce feuillard étant guidé à une vitesse réglable à travers un ensemble de rouleaux (2) comportant le rouleau (3, 3-1, 3-2) et au moins un autre rouleau (3, 3-1, 3-2). Selon l'invention, l'occurrence d'un mouvement de glissement est surveillée (21) par la saisie d'au moins un paramètre technique de fonctionnement du rouleau (3, 3-1, 3-2) et, en cas de mouvement de glissement du rouleau (3, 3-1, 3-2), une vitesse circonférentielle réelle du rouleau (3, 3-1, 3-2) et/ou d'au moins un autre rouleau (3, 3-1, 3-2) et/ou la vitesse du feuillard sont modifiées (24, 25, 26, 27, 34) de façon que la vitesse circonférentielle réelle du rouleau (3, 3-1, 3-2) glissant et la vitesse du feuillard se rapprochent l'une de l'autre, permettant ainsi de détecter le glissement d'un feuillard relativement à un rouleau dans une installation industrielle et de réduire voire de supprimer ce glissement, notamment pendant le fonctionnement de l'installation.

Claims (9)

  1. Procédé de commande et/ou de réglage d'un mouvement de glissement d'un rouleau ( 3, 3-1, 3-2 ) par rapport à une bande ( B ), notamment d'un feuillard à froid à façonner dans un dispositif de façonnage du métal, qui est guidé à une vitesse de feuillard réglable dans un ensemble ( 2 ) de rouleaux ayant le rouleau ( 3, 3-1, 3-2 ) et au moins un autre rouleau ( 3, 3-1, 3-2 ), une apparition du mouvement de glissement étant contrôlée ( 21 ) en relevant au moins une grandeur de fonctionnement technique du rouleau ( 3, 3-1, 3-2 ) et en ce que, lorsqu'un mouvement de glissement du rouleau ( 3, 3-1, 3-2 ) apparaît, une vitesse périphérique réelle du rouleau ( 3, 3-1, 3-2 ) et/ou au moins de l'un des au moins un autre rouleau ( 3, 3-1, 3-2 ) et/ou la vitesse du feuillard étant modifiée ( 24, 25, 26, 27, 34 ), de manière à ce que la vitesse périphérique réelle du rouleau (3, 3-1, 3-2) glissant et la vitesse du feuillard se rapprochent l'une de l'autre,
    caractérisé en ce qu'au moins l'un des rouleaux (3, 3-1, 3-2 ) de l'ensemble ( 2 ) de rouleaux est constitué en rouleau ( 3, 3-1, 3-2 ) menant pour la prescription d'un paramètre de fonctionnement et au moins l'un des rouleaux est constitué en rouleau ( 3-2 ) suivant utilisant le paramètre de fonctionnement prescrit, une régulation de la vitesse périphérique du au moins un rouleau ( 3-1 ) menant s'effectuant au moyen d'une régulation PI, une régulation de la vitesse périphérique du au moins un des rouleaux ( 3-2 ) suivant s'effectuant au moyen d'une régulation P, dans lequel, lorsque apparaît un mouvement de glissement de l'un des rouleaux ( 3, 3-1, 3-2 ), la régulation d'au moins un rouleau ( 3-2 ) suivant passe d'une régulation P à une régulation PI.
  2. Procédé suivant la revendication 1,
    caractérisé en ce que, lorsque apparaît un mouvement de glissement d'au moins l'un des au moins un rouleau ( 3-2 ) suivant, la régulation du au moins un rouleau ( 3-2 ) suivant passe d'une régulation P à une régulation PI.
  3. Procédé suivant la revendication 1 ou 2,
    caractérisé en ce que, lorsqu'un mouvement de glissement du rouleau ( 3-1 ) menant se produit, la régulation de tous les rouleaux ( 3-2 ) suivants passe d'une régulation P à une régulation PI.
  4. Procédé suivant l'une des revendications 1 à 3,
    caractérisé en ce qu'un retour ( 30, 31 ) d'une régulation PI à une régulation P d'au moins l'un des au moins un rouleau ( 3-2 ) suivant s'effectue en fonction d'une mesure de la valeur du couple du moteur ( 4 ) entraînant ce rouleau ( 3-2 ) et/ou en fonction de la vitesse périphérique de consigne du rouleau (3-1) menant et/ou en fonction de la vitesse du feuillard.
  5. Procédé suivant l'une des revendications 1 à 4,
    caractérisé en ce que, lors d'une commutation et/ou d'un retour ( 30, 31 ) de la régulation, un couple du moteur ( 4 ) entraînant les rouleaux ( 3, 3-1, 3-2 ) est modifié sensiblement sans saut.
  6. Dispositif ( 5 ) de commande et/ou de régulation pour un ensemble ( 2 ) de rouleaux d'une installation, notamment d'un laminoir à froid, et/ou d'une ligne de façonnage pour le façonnage de feuillard ( B ), notamment de feuillard métallique, comprenant un code ( 7 ) de programme, qui peut être exécuté par une machine et qui comporte des instructions de commande, qui, lorsqu'elles sont exécutées, font que le dispositif ( 5 ) de commande et/ou de régulation effectue le procédé suivant l'une des revendications précédentes.
  7. Code (7) de programme pouvant être exécuté par une machine pour un dispositif ( 5 ) de commande et/ou de régulation pour un ensemble ( 2 ) de rouleaux d'une installation ( 2 ) de façonnage de bande ( B ), notamment un laminoir à froid et/ou une ligne de traitement, le code ( 7 ) de programme ayant des instructions de commande, qui font que le dispositif ( 5 ) de commande et/ou de régulation effectue le procédé suivant l'une des revendications 1 à 5.
  8. Support ( 6 ) de mémoire ayant un code ( 7 ) de programme suivant la revendication 7, qui y mémorisé et qui peut être exécuté par une machine.
  9. Installation ( 1 ) industrielle, notamment laminoir à froid et/ou ligne de façonnage pour le façonnage de bande ( B ), notamment de feuillard métallique, ayant au moins un ensemble ( 2 ) de rouleaux comprenant au moins deux rouleaux (3, 3-1, 3-2 ) pour le réglage d'une tension du feuillard (B) et ayant un dispositif ( 5 ) de commande et/ou de régulation suivant la revendication 6, qui est relié efficacement à au moins un dispositif ( 4, 3, 3-1, 3-2 ) d'entraînement des rouleaux ( 3, 3-1, 3-2 ).
EP09780693A 2008-08-27 2009-07-16 Procédé pour commander et/ou régler un mouvement de glissement d'un rouleau relativement à une bande, dispositif de commande et/ou de réglage, code de programme lisible par machine, support d'enregistrement et installation industrielle Active EP2328696B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL09780693T PL2328696T3 (pl) 2008-08-27 2009-07-16 Sposób sterowania i/lub regulacji do usuwania poślizgu rolki względem taśmy, urządzenie sterujące i/lub regulacyjne, odczytywalny maszynowo kod programowy, nośnik pamięci i instalacja przemysłowa

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008040008A DE102008040008A1 (de) 2008-08-27 2008-08-27 Verfahren zum Aussteuern und/oder Ausregeln einer Rutschbewegung einer Rolle relativ zu einem Band, Steuer- und/oder Regeleinrichtung, Maschinenlesbarer Programmcode, Speichermedium und Industrieanlage
PCT/EP2009/059133 WO2010023030A1 (fr) 2008-08-27 2009-07-16 Procédé pour commander et/ou régler un mouvement de glissement d'un rouleau relativement à une bande, dispositif de commande et/ou de réglage, code de programme lisible par machine, support d'enregistrement et installation industrielle

Publications (2)

Publication Number Publication Date
EP2328696A1 EP2328696A1 (fr) 2011-06-08
EP2328696B1 true EP2328696B1 (fr) 2012-05-23

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EP09780693A Active EP2328696B1 (fr) 2008-08-27 2009-07-16 Procédé pour commander et/ou régler un mouvement de glissement d'un rouleau relativement à une bande, dispositif de commande et/ou de réglage, code de programme lisible par machine, support d'enregistrement et installation industrielle

Country Status (7)

Country Link
EP (1) EP2328696B1 (fr)
CN (1) CN102131596B (fr)
BR (1) BRPI0918572A2 (fr)
DE (1) DE102008040008A1 (fr)
PL (1) PL2328696T3 (fr)
RU (1) RU2477188C2 (fr)
WO (1) WO2010023030A1 (fr)

Families Citing this family (6)

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CN105598210B (zh) * 2015-12-31 2017-10-31 中铝西南铝冷连轧板带有限公司 带材打滑检测方法
CN109092906B (zh) * 2018-11-08 2019-11-05 东北大学 一种五机架冷连轧机组打滑现象的在线调整方法
CN111085548B (zh) * 2019-12-24 2021-06-18 鞍钢冷轧钢板（莆田）有限公司 一种消除张力辊组打滑的方法
CN111250550B (zh) * 2020-01-15 2022-03-18 首钢京唐钢铁联合有限责任公司 一种张力辊组的控制方法和控制系统
CN111268494A (zh) * 2020-02-12 2020-06-12 Oppo（重庆）智能科技有限公司 撕离型纸装置
CN112626331B (zh) * 2020-11-30 2021-11-09 北京科技大学 一种判断连续退火炉内炉辊打滑的方法

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Publication number Priority date Publication date Assignee Title
US3459351A (en) * 1967-09-26 1969-08-05 Wilson Lee Eng Co Inc Method and apparatus for tensioning a moving strip
US3764050A (en) * 1972-02-16 1973-10-09 B & K Machining Int Ltd Differential drive for tension rollers
GB1577125A (en) * 1977-06-17 1980-10-22 Head Wrightson Mach Drive for bridle rolls
RU2251373C2 (ru) * 2003-05-19 2005-05-10 Квасенков Олег Иванович Способ производства некурительного изделия из махорки
DE102006048421B4 (de) * 2006-10-12 2012-08-30 Siemens Ag Verfahren zum Regeln eines Istzuges auf einen Sollzug mittels eines mittels eines Modells der Zugregelstrecke adaptierten Zugreglers

Also Published As

Publication number Publication date
CN102131596B (zh) 2014-03-12
WO2010023030A1 (fr) 2010-03-04
RU2477188C2 (ru) 2013-03-10
BRPI0918572A2 (pt) 2015-12-01
DE102008040008A1 (de) 2010-03-04
RU2011111400A (ru) 2012-10-10
EP2328696A1 (fr) 2011-06-08
CN102131596A (zh) 2011-07-20
PL2328696T3 (pl) 2012-10-31

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