EP2192066A2 - Procédé et agencement pour le contrôle de l'opération d'un dispositif d'enroulement - Google Patents

Procédé et agencement pour le contrôle de l'opération d'un dispositif d'enroulement Download PDF

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Publication number
EP2192066A2
EP2192066A2 EP09175640A EP09175640A EP2192066A2 EP 2192066 A2 EP2192066 A2 EP 2192066A2 EP 09175640 A EP09175640 A EP 09175640A EP 09175640 A EP09175640 A EP 09175640A EP 2192066 A2 EP2192066 A2 EP 2192066A2
Authority
EP
European Patent Office
Prior art keywords
winding
machine reel
quality indicator
wound
parameter
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.)
Withdrawn
Application number
EP09175640A
Other languages
German (de)
English (en)
Other versions
EP2192066A3 (fr
Inventor
Tatu PITKÄNEN
Matti M. Kemppainen
Jari Tiitta
Marko Tiilikainen
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.)
Valmet Technologies Oy
Original Assignee
Metso Paper Oy
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 Metso Paper Oy filed Critical Metso Paper Oy
Publication of EP2192066A2 publication Critical patent/EP2192066A2/fr
Publication of EP2192066A3 publication Critical patent/EP2192066A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/08—Web-winding mechanisms
    • B65H18/26—Mechanisms for controlling contact pressure on winding-web package, e.g. for regulating the quantity of air between web layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/08—Web-winding mechanisms
    • 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
    • B65H23/195—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in winding mechanisms or in connection with winding operations
    • 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
    • B65H2301/414—Winding
    • B65H2301/4146—Winding involving particular drive arrangement
    • B65H2301/41466—Winding involving particular drive arrangement combinations of drives
    • B65H2301/41468—Winding involving particular drive arrangement combinations of drives centre and nip drive
    • 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
    • B65H2511/14—Diameter, e.g. of roll or package
    • 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
    • B65H2515/10—Mass, e.g. mass flow rate; Weight; Inertia
    • 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
    • B65H2515/12—Density
    • 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
    • B65H2515/84—Quality; Condition, e.g. degree of wear
    • 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
    • B65H2557/60—Details of processes or procedures
    • B65H2557/61—Details of processes or procedures for calibrating

Definitions

  • the invention relates to a method and an arrangement for controlling the operation of a winder device.
  • the invention also relates to a winder device.
  • Fig. 1 shows an illustration of principle of a winder device in which paper or other material being wound 101 is wound around a winding shaft 102.
  • said winding shaft is often called a reel spool and the unit formed by the reel spool and the material wound around it is called a machine reel 104.
  • a winding drum 103 which is pressed against the machine reel with a support apparatus 105 which includes a power output apparatus, such as e.g. hydraulic cylinders and pistons or servo-controlled screw guides, for producing a pressing force.
  • the material being wound 101 travels from a nip between the winding drum 103 and the machine reel 104.
  • a torque M1 To the winding drum 103 is applied a torque M1 and to the winding shaft 102 is applied a torque M2.
  • the device producing the torque M2 is often called a centre drive.
  • the winding drum 103 is pressed against the machine reel 104 for providing a radial component Fn (-Fn) of a force prevailing between the winding drum and the machine reel, which is called a nip force.
  • Said nip force is typically expressed as force per machine-reel width (kN/m).
  • Other forces related to winding are a tangential peripheral force prevailing on the surface of the machine reel 104 caused by the torque M2 and a tangential force caused by the torque M1 which the winding drum applies to the material being wound 101.
  • a rider roll 106 which is pressed against the machine reel 104 with a support apparatus 107.
  • the rider roll can be structured such that a cross-directional force profile of a force between the rider roll and the machine reel can be adjusted.
  • a torque M3 To the rider roll can be applied a torque M3, whereby the rider roll applies a tangential surface draw to the machine reel.
  • the nip force between the winding drum and the machine reel, the peripheral force provided with the centre drive of the machine reel, the web tension of the material being wound 101, the tangential force applied to the machine reel by the winding drum as well as the surface draw applied to the machine reel surface by the rider roll and the shape of the force profile represent control parameters of the winding process i.e. winding parameters by adjusting which the properties, such as the hardness, of the machine reel being formed can be affected.
  • the aim is to form a reel of the material being wound 101 which fulfils the conditions set by the winding process and further processing in relation to handling and reel
  • the values of said winding parameters function as specifications for the force and torque control of the drives of the winder device.
  • the operating personnel of the winder device determine suitable values for the winding parameters by means of experience and manually performed measurements.
  • the operator of the winder device can e.g. tap finished reels to determine whether the hardness of the finished reels is suitable and, if required, change the value of one or more winding parameters.
  • such a control method is slow and laborious.
  • the invention relates to a novel method for controlling the operation of a winder device, in which method during the winding process:
  • the method according to the invention employs measurement and determination methods by means of which it is possible to determine the quality properties of a machine reel being formed during the winding process of said machine reel.
  • Said measurement and determination methods are e.g. the hardness measurement of the reel, which can be based on e.g. measuring an impact caused by a spring force, the thickness measurement of an air foil, the determination of the reel density, and the determination of the tangential tension WOT (wound on tension) of the top layer of the machine reel.
  • one or more winding parameters are adjusted, which can be e.g.
  • the invention also relates to a novel arrangement for controlling the operation of a winder device.
  • measuring and data-processing means to determine at least one quality indicator representing the properties of a machine reel being formed during the winding process by means of a measurement applied to said machine reel and a controller apparatus which is arranged to provide:
  • Said first control circuit and second control circuit are advantageously cascaded in relation to each other such that said second control circuit is arranged to operate as an inner control loop and said first control circuit is arranged to operate as an outer control loop the output of which is arranged to operate as the specification to be given to said second control circuit.
  • the invention also relates to a novel winder device which consists of:
  • Fig. 1 was described above in this document in connection with the description of prior art.
  • Fig. 2 shows a side view of a winder device which contains an arrangement according to an embodiment of the invention for controlling the operation of said winder device.
  • a winding shaft 202 around which paper or other material being wound 201 is wound, whereby a machine reel 204 is formed.
  • a winding drum 203 which is pressed against the machine reel with a support apparatus 205 which includes a power output apparatus, such as e.g. hydraulic cylinders and pistons or servo-controlled screw guides, for producing a pressing force.
  • the material being wound 201 travels from a nip between the winding drum 203 and the machine reel 204.
  • a torque M1 and to the winding shaft 202 is applied a torque M2.
  • the winding drum 203 is pressed against the machine reel 204 for providing a nip force Fn (-Fn) between the winding drum and the machine reel.
  • Fn nip force
  • the rider roll can be structured such that a cross-directional (z direction of the co-ordinates 250) force profile of a force between the rider roll and the machine reel can be adjusted.
  • a torque M3 whereby the rider roll applies a tangential surface draw to the machine reel.
  • the nip force between the winding drum and the machine reel, the peripheral force provided with the centre drive of the machine reel, the web tension of the material being wound 201, the tangential force applied to the machine reel by the winding drum as well as the surface draw applied to the machine reel surface by the rider roll and the shape of the force profile represent control parameters of the winding process i.e. winding parameters by adjusting which the properties, such as the hardness, of the machine reel 204 being formed can be affected.
  • measuring and data-processing means 208 to determine at least one quality indicator representing the properties of the machine reel being formed 204 during the winding process by means of a measurement applied to said machine reel. Said measurement is performed during said winding process.
  • controller apparatus 212 which is arranged to provide a first control circuit for adjusting a specification of at least one winding parameter affecting said winding process during said winding process based on said at least one quality indicator and a second control circuit for controlling said winder device during said winding process based on the specification of said at least one winding parameter.
  • Said first control circuit and second control circuit are advantageously cascaded in relation to each other such that said second control circuit is arranged to operate as the inner control loop and said first control circuit is arranged to operate as the outer control loop the output of which is arranged to operate as the specification to be given to said second control circuit.
  • the controller apparatus 212 is arranged to control the operation of motors 209, 210 and 211 producing torques M1, M2 and M3 and the operation of the support apparatuses 207 and 205. By controlling the operation of the motors 209, 210 and 211 and the support apparatuses 207 and 205, the controller apparatus is able to adjust winding parameters.
  • the measuring and data-processing means 208 are arranged to determine the density of the top layers of the machine reel 204. Then, the determined density represents a quality indicator defined of the machine reel based on which a specification of at least one winding parameter is adjusted.
  • the measuring and data-processing means 208 can be arranged to determine said density e.g. on the basis of the peripheral speed of the machine reel v k [m/s], the rotation speed of the machine reel ⁇ [rotations/s], the web speed of the material being wound 201 v r [m/s] and the basis weight of said material being wound m A [g/m 2 ].
  • the peripheral speed of the machine reel and the web speed of the material being wound can be determined e.g. with contact measuring devices, such as e.g. measuring wheels, or contact-free measuring devices, such as e.g. surface-speed lasers.
  • the peripheral speed of the machine reel is not necessarily equal to the web speed of the material being wound, because the material being wound may stretch in the winding process.
  • the density of a part of the machine reel formed in the time period T 1 ... T 2 can be calculated by means of equations (2)-(4).
  • the measuring and data-processing means 208 are arranged to determine a tangential tension WOT (wound on tension) prevailing on the top layer of the machine reel based on the remainder v k - v r of the peripheral speed of the machine reel 204 and the web speed of the material being wound 201, the web tension T r of the material being wound and the elastic properties of the material being wound. Then, the determined tangential tension WOT represents a quality indicator defined of the machine reel based on which a specification of at least one winding parameter is adjusted.
  • the peripheral speed of the machine reel and the web speed of the material being wound can be determined e.g. with contact measuring devices, such as e.g. measuring wheels, or contact-free measuring devices, such as e.g. surface-speed lasers.
  • ⁇ E describes the additional tension obtained by the material in the winding process.
  • the measuring and data-processing means 208 are arranged to determine the hardness of the surface of said machine reel. Then, the determined hardness represents a quality indicator based on which a specification of at least one winding parameter is adjusted.
  • the measurement of the hardness of the machine-reel surface can be based e.g. on the measurement of an impact motion caused by a spring force.
  • the controller apparatus 212 is arranged to adjust specifications of several winding parameters in a predetermined priority order based on at least one quality indicator.
  • the specification of a winding parameter being lower in said priority order is arranged to be adjusted as a response to a situation in which a sufficient change has not been achieved in said at least one quality indicator by adjusting the specification of a winding parameter upper in said priority order.
  • ranges of variation i.e. the lowest permissible value and the highest permissible value are defined for each winding parameter.
  • the priority order of said winding parameters can be e.g.
  • the web tension r 3 is not adjusted until the controls of the other winding parameters r 2 , r 1 , r 4 and r 5 have not provided a desired result i.e. there is a situation in which the quality indicator differs from its target value and the control measure has set each of said other winding parameters to its lowest or highest permissible value.
  • Said priority order can also be asymmetric such that the position of each winding parameter in said priority order is dependent on the direction of change in the winding parameter in question. For instance, the web tension can be last in said priority order if the web tension should be increased, but first if the web tension should be decreased.
  • the controller apparatus 212 is arranged to adjust specifications of several winding parameters based on at least one quality indicator.
  • Said winding parameters are attached with predetermined weighing coefficients which are arranged to express the ratio of a change in the specification of each winding parameter and a change in said at least one quality indicator.
  • the determinable quality indicators are one or more of the following: density p, hardness h and tangential tension prevailing on the top layer WOT.
  • Equation (8) corresponds an example in which the specification of the winding parameter is adjusted on the basis of three determined quality indicators (p, h, WOT). It should be noted that the number of used quality indicators can be some other than three and/or that the quality indicator (quality indicators) can be some other quantity (quantities) representing the properties of the machine reel.
  • the controller apparatus 212 is arranged to adjust the specification of said at least one winding parameter based on at least one control variable given by the operator in addition to at least one quality indicator.
  • the control variable given by the operator can be e.g. a nominal value r i,ref0 of the specification of the winding parameter in equation (8).
  • the controller apparatus 212 is arranged to adjust the form profile of the rider roll 206 of the winding device based on at least one of the following: temporal variation of the form profile of the machine reel 204 and air volume measured from the machine reel.
  • the form profile of the machine reel means variation in the radius of the machine reel as a function of the axial direction.
  • Fig. 3 shows a control diagram which illustrates the control of a winder device implemented with an arrangement according to an embodiment of the invention.
  • the control circuit 301 forms an outer closed control loop and the control circuit 302 forms an inner closed control loop which is part of said outer closed control loop.
  • Target values 303 of the quality indicators of the machine reel are compared to quality indicators 311 determined by means of measurements from the machine reel (block 309). It is e.g. possible to measure the diameter/hardness profile of the machine reel e.g. by a measuring roll in which the measurement is based on a pressure-sensitive film.
  • the measuring roll in which the measurement is based on the pressure-sensitive film, can be e.g.
  • the specifications of the winding parameters are adjusted (block 304).
  • the specifications of the winding parameters can be further adjusted (set) on the basis of control variables given by the operator (block 305). For instance based on the variation of the diameter/hardness profile of the machine reel, it is possible to increase or decrease the target density of the machine reel and/or the tangential tension WOT (wound on tension) prevailing on the top layer of the machine reel and/or to change the mutual ratios of various winding parameters. For example in a situation, in which the variation of the diameter/hardness profile of the machine reel is great i.e.
  • the machine reel is lumpy, whereby air easily remains within the machine reel, it is worthwhile to increase the peripheral force instead of increasing the nip force, because the increase in the nip force would hinder the exit of air from the machine reel and thus would have an undesired effect.
  • specifications 313 of the winding parameters are formed (block 306).
  • the specifications 313 of the winding parameters are compared to prevailing winding parameters 312. Based on difference variables given by the comparison, forces produced by the operating system of the winder device and/or torques are adjusted (block 307).
  • Friction, mass inertias and other possible mechanical factors have an effect according to known laws of physics on how the forces and torque affect prevailing winding parameters.
  • Fig. 4 shows a block diagram of a method according to an embodiment of the invention for controlling the operation of a winder device. In the method:
  • said quality indicator represents the density of the top layers of said machine reel.
  • said density is determined on the basis of the peripheral speed of said machine reel, the rotation speed of said machine reel, the web speed of the material being wound, and the basis weight of said material being wound.
  • said density is determined on the basis of the distance between the rotation axis of said machine reel and the rotation axis of the winding drum, the radius of said winding drum, the web speed of the material being wound, and the basis weight of said material being wound.
  • said quality indicator represents the tangential tension prevailing on the top layer of said machine reel, which is determined on the basis of the remainder of the peripheral speed of said machine reel and the web speed of the material being wound, the web tension of said material being wound, and the elastic properties of said material being wound.
  • said quality indicator represents the hardness of the surface of said machine reel.
  • specifications of several winding parameters of said winding process are adjusted by means of said at least one quality indicator and the specifications of said winding parameters are adjusted in a predetermined priority order such that the specification of a winding parameter being lower in said priority order is adjusted as a response to a situation in which a sufficient change has not been achieved in said at least one quality indicator by adjusting the specification of a winding parameter being upper in said priority order.
  • said at least one winding parameter is one or more of the following: nip force between the winding drum and said machine reel, peripheral force provided with the centre drive of said machine reel, web tension of the material being wound, and surface draw applied to the surface of said machine reel by the rider roll.
  • the specification of said at least one winding parameter is adjusted based on at least one control variable given by the operator in addition to said at least one quality indicator.
  • the form profile of the rider roll of said winding device is adjusted based on at least one of the following: temporal variation of the form profile of said machine reel and air volume measured from said machine reel.
  • specifications of several winding parameters of said winding process are adjusted based on said at least one quality indicator and in said winding parameters are attached predetermined weighing coefficients which represent a ratio of the change in the specification of each winding parameter and the change in said at least one quality indicator.
  • measuring and data-processing means (208) to determine at least one quality indicator representing the properties of a machine reel being formed (204) during the winding process by means of a measurement applied to the machine reel. From the machine reel, it is possible to determine e.g. hardness, density and/or top-layer tangential tension.
  • controller apparatus (212) which is arranged to provide a first control circuit for adjusting specifications of winding parameters based on a determined quality indicator and a second control circuit for controlling the winder device based on the specifications of the winding parameters.
  • the arrangement according to the invention is able to adjust the quality properties of the machine reel being formed by closed control already during the winding process.

Landscapes

  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Winding Of Webs (AREA)
EP09175640A 2008-11-26 2009-11-11 Procédé et agencement pour le contrôle de l'opération d'un dispositif d'enroulement Withdrawn EP2192066A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI20086135A FI121270B (fi) 2008-11-26 2008-11-26 Menetelmä ja järjestely rullainlaitteen toiminnan säätämiseksi

Publications (2)

Publication Number Publication Date
EP2192066A2 true EP2192066A2 (fr) 2010-06-02
EP2192066A3 EP2192066A3 (fr) 2010-11-10

Family

ID=40097379

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09175640A Withdrawn EP2192066A3 (fr) 2008-11-26 2009-11-11 Procédé et agencement pour le contrôle de l'opération d'un dispositif d'enroulement

Country Status (3)

Country Link
EP (1) EP2192066A3 (fr)
CA (1) CA2684129A1 (fr)
FI (1) FI121270B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3027546A4 (fr) * 2013-07-30 2017-03-15 Kimberly-Clark Worldwide, Inc. Mesure du diamètre d'un rouleau de matériau dans un système d'enroulement
WO2017144784A1 (fr) * 2016-02-25 2017-08-31 Valmet Technologies Oy Procédé, système et produit de programme informatique pour la surveillance d'état d'un élément continu se déplaçant dans une machine de finissage de bandes de fibres ou de papier

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102874628A (zh) * 2012-10-12 2013-01-16 无锡市张泾宇钢机械厂 一种钢带收卷机的压臂压辊结构

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6047275A (en) * 1997-10-14 2000-04-04 Allen-Bradley Company, Llc Fuzzy logic winder analyzer
US7000864B2 (en) * 2002-06-10 2006-02-21 The Procter & Gamble Company Consumer product winding control and adjustment

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3027546A4 (fr) * 2013-07-30 2017-03-15 Kimberly-Clark Worldwide, Inc. Mesure du diamètre d'un rouleau de matériau dans un système d'enroulement
WO2017144784A1 (fr) * 2016-02-25 2017-08-31 Valmet Technologies Oy Procédé, système et produit de programme informatique pour la surveillance d'état d'un élément continu se déplaçant dans une machine de finissage de bandes de fibres ou de papier
CN108699773A (zh) * 2016-02-25 2018-10-23 维美德技术有限公司 用于纤维幅材或纸张整理机中运动的连续元件的状况监测的方法、系统和计算机程序产品
US10662584B2 (en) 2016-02-25 2020-05-26 Valmet Technologies Oy Method, system and a computer program product for condition monitoring of a continuous element moving in a fiber web or paper finishing machine

Also Published As

Publication number Publication date
FI20086135A0 (fi) 2008-11-26
EP2192066A3 (fr) 2010-11-10
FI121270B (fi) 2010-09-15
CA2684129A1 (fr) 2010-05-26
FI20086135L (fi) 2010-05-27

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