EP3934997A1 - Entraînement de machines de découpe de bobines - Google Patents

Entraînement de machines de découpe de bobines

Info

Publication number
EP3934997A1
EP3934997A1 EP19817691.9A EP19817691A EP3934997A1 EP 3934997 A1 EP3934997 A1 EP 3934997A1 EP 19817691 A EP19817691 A EP 19817691A EP 3934997 A1 EP3934997 A1 EP 3934997A1
Authority
EP
European Patent Office
Prior art keywords
roll
winding
drive
web
parent
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
EP19817691.9A
Other languages
German (de)
English (en)
Other versions
EP3934997C0 (fr
EP3934997B1 (fr
Inventor
Ewald Wetschenbacher
Alexander Stengler
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.)
Voith Patent GmbH
Original Assignee
Voith Patent GmbH
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 Voith Patent GmbH filed Critical Voith Patent GmbH
Publication of EP3934997A1 publication Critical patent/EP3934997A1/fr
Application granted granted Critical
Publication of EP3934997C0 publication Critical patent/EP3934997C0/fr
Publication of EP3934997B1 publication Critical patent/EP3934997B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B65H18/14—Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web
    • B65H18/20—Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web the web roll being supported on two parallel rollers at least one of which is driven
    • 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
    • B65H18/14—Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web
    • B65H18/145—Reel-to-reel type web winding and unwinding 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
    • B65H23/044—Sensing web tension
    • 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
    • B65H23/185—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 motor-controlled
    • 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
    • B65H23/198—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 motor-controlled (Controlling electrical drive motors therefor)
    • 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
    • B65H2301/4148—Winding slitting

Definitions

  • the invention relates to a method for winding a material web onto a winding tube to form a winding roll in roll cutting machines after longitudinal cutting of a material web unwound from a parent roll, the parent roll and the winding roll being driven.
  • the invention also relates to a device for winding a material web onto a winding tube to form a winding roll in roll cutting machines after longitudinal cutting of a material web unwound from a parent roll, comprising two axially parallel support rollers for supporting the winding roll with the formation of two winding gaps, the material web in the first winding gap is guided to the winding roll with at least partial looping of the first support roller and the second support roller downstream of the first support roller in the material web running direction is free from being looped by the material web and a drive with a control unit is assigned to each of the mother roll and the first support roller, in particular for carrying out the method.
  • the invention is explained below in connection with the treatment of a paper web. However, it can also be used accordingly for other railways that are to be handled similarly. These are, for example, but not exhaustively, sheets of cardboard, cardboard, plastic or metal foils.
  • Paper webs are produced in a paper machine in relatively large widths of up to over 11 m. The production is almost endless.
  • the direction of movement of the goods in the paper machine defines the longitudinal direction for all machines and equipment in the paper mill and the transverse direction in the horizontal plane perpendicular to it.
  • the paper web produced is wound onto a winding core in full width.
  • This winding core is replaced cyclically, usually while production is running.
  • the web-wide winding roll produced in this way is usually referred to as the parent roll or full reel.
  • the paper web wound on a master roll must be cut into several parallel partial webs, the widths of which are suitable for the respective later user. These widths can vary greatly from case to case, so that the division of the paper web is usually carried out according to an individually definable cutting pattern.
  • the partial webs are then wound up into winding rolls, which are called partial web or finished rolls and which are output together as so-called roll litter.
  • the pattern can be changed from roll to roll.
  • the longitudinal cutting and winding are expediently carried out in a single machine, which is then often referred to as a roll cutting device.
  • winding devices described above i.e. those for producing parent rolls as well as those for producing partial or finished rolls, have in common that the web to be wound to form a winding roll forms a winding gap with at least one winding roller on which it is supported or on which it is rests or rests on and which is accordingly referred to as a support or support roller.
  • These winding rollers which are in direct contact with the winding rollers that are being formed, thus also represent the tools that act directly and by means of which the winding quality can be influenced.
  • While the main drive of the winding roll is speed-controlled and determines the speed of the winder, the drive of the parent roll is torque-controlled with superimposed web tension control.
  • the parent roll is relatively inhomogeneous in terms of specific weight, since it is usually wound harder in the core than on the outside. Therefore, the calculation of the flywheel mass and consequently the control of the drive torque when accelerating and braking is very imprecise.
  • Such machines are described, for example, in DE 30 30 798 A1 and DE 10 2010 039 007 A1.
  • the object of the invention is to improve the winding result in slitting machines.
  • the object was achieved in that the web tension between the parent roll and the winding roll is measured and, depending on the operating state, the drive of the mother roll or the drive of the winding rolls takes place in such a way that the web tension is within a predetermined interval.
  • the drive of the winding rollers should take over the control of the web tension when accelerating and braking the unwinding.
  • the drive of the parent roll determines the line speed. The same is advantageous for crawler gear.
  • the drive of the parent roll should take over the control of the web tension, as has been usual and proven up to now.
  • the drive of the winding rolls determines the line speed in this operating state.
  • the parent roll should be driven at times speed-controlled / -regulated and at times torque-controlled / -regulated.
  • the parent roll should be speed-controlled / -regulated during the crawl speed, when accelerating or when braking the unwinding, and torque-controlled / -regulated at the production speed of the unwinding.
  • the winding roll should be driven at least predominantly in a speed-controlled manner.
  • the device it is essential that between the master roll and the first support roller there is at least one web tension detecting sensor which, depending on the operating state, can be connected by the machine control to the control unit of the drive of the mother roll or the control unit of the drive of the first support roller.
  • the preferred embodiment of a roll winding device according to the invention shown in the figure is implemented in connection with a roll cutting device designed as a support roll winding device.
  • Essential components of this roll cutting device are an unwinding device 15, in which the paper web 1, in its width essentially the working width of a paper machine upstream of the roll cutting device and corresponding to the paper machine (not shown here), is drawn off from a master roll 4, a cutting section 17 in which the paper web 1 is used Production of partial webs in selectable width formats is divided longitudinally according to their running direction and a winding arrangement 16 located in the area of their winding.
  • the master roll 4 is assigned its own drive 8 with a control unit.
  • the cutting section 17 usually comprises disk-shaped cutting devices as essential components, which are shown here in the form of upper knives 18 and lower knives 19 that act on one another.
  • this area is delimited by deflection rollers 20 in the example shown.
  • the at least one winding roll 3 to be wound and the support roller 21 form essential elements of the winding arrangement 16. Although only the end face of a single winding roll 3 is visible in the figure, it is assumed here that in the Image plane extending Y-direction further Winding rolls 3 behind the winding roll 3 shown are located in the winding bed formed from the two support rollers 5, 6.
  • the core of the winding rolls 3 that form in the course of the winding process consists of a winding tube 2 with which the beginning of a finite section of a partial web of material web 1 is connected and then spanned by continuous winding to form so-called winding layers.
  • the two axially parallel support rollers 5, 6 serve to support the winding roll 3 with the formation of two winding gaps 11, 12, whereby in the first winding gap 11 the material web 1 is guided to the winding roll 3 with partial wrapping around the first supporting roller 5 and that of the first supporting roller 5 in the web running direction 7 downstream second support roller 6 is free from being wrapped around by the material web 1.
  • a drive 9, 10 with a control unit is assigned to each of the two support rollers 5, 6.
  • first support roller 5 is speed-controlled in the web running direction 7 of the paper web 1 and the second support roller 6 is torque-controlled, the torque control of the second support roller 6 being independent of the influence of the actual value of the speed of the first support roller 5 and the load sharing takes place in such a way that the winding roll 3 is driven at least predominantly with speed control.
  • the support rollers 5, 6 can have an elastic mounting. Likewise, at least one of the two support rollers 5, 6 can have a coating or sheathing that becomes effective on the material web 1.
  • the unwinding and winding process must therefore be adapted to one another.
  • the drive 8 of the parent roll 4 and the drives 9, 10 of the support rollers 5, 6 are connected to the machine control 14 via their respective control units.
  • the web tension of the material web 1 between the master roll 4 and the first support roller 5 is detected by a sensor 13 and transmitted to the machine unit 14.
  • a controller is understood here to mean the entirety of the functional components required to carry out control and regulation tasks and their links. This includes control devices, regulators, devices for recording actual values, disturbance variables and actuating devices as well as their interconnections.
  • the purpose of the machine control system 14 is to ensure that, depending on the operating state, the drive 8 of the parent roll 4 or the drive 9, 10 of the winding rolls 3 takes place in such a way that the web tension is within a predetermined interval.
  • the senor 13 is connected by the machine control 14 to the control unit of the drive 8 of the master roll 4 or the control unit of the drive 9 of the first carrier roll 5, depending on the operating state for a higher-level web tension control.
  • the drive 8 of the parent roll 4 is torque-controlled with a superordinate web tension control so that the web tension is within a predetermined interval.
  • the drive 9 of the first support roller 5 is only speed-controlled.
  • the drive 9 of the first support roller 5 is speed-controlled with superordinate web tension control, so that the web tension is within a predetermined interval.
  • the drive 8 of the parent roll 4 is only speed-controlled. This means that the master roll 4 is driven at times with speed control and at times with torque control.
  • the relevant centrifugal mass is essentially determined by the winding roll 3, which is considerably lighter than the parent roll 4, which minimizes the fluctuations in the web tension.

Landscapes

  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Replacement Of Web Rolls (AREA)

Abstract

L'invention concerne un procédé ainsi qu'un dispositif permettant d'enrouler une bande de matériau (1) sur un bobinot d'enroulement (2) pour former une bobine enroulée (3) dans des machines de découpe de bobines après la découpe longitudinale d'une bande de matériau (1) déroulée à partir d'une bobine mère (4), la bobine mère (4) et la bobine enroulée (3) étant entraînées et la traction de bande entre la bobine mère (4) et la bobine enroulée (3) étant mesurée. Selon l'invention, le résultat de l'enroulement dans des machines de découpe de bobines est amélioré par le fait que, en fonction de l'état de fonctionnement, l'entraînement (8) de la bobine mère (4) ou l'entraînement (9,10) de la bobine enroulée (3) est effectué de façon à ce que la tension de bande se situe dans un intervalle prédéfini.
EP19817691.9A 2019-03-05 2019-12-10 Entraînement de machines de découpe de bobines Active EP3934997B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019105485.0A DE102019105485A1 (de) 2019-03-05 2019-03-05 Rollenschneidmaschinen-Antrieb
PCT/EP2019/084303 WO2020177910A1 (fr) 2019-03-05 2019-12-10 Entraînement de machines de découpe de bobines

Publications (3)

Publication Number Publication Date
EP3934997A1 true EP3934997A1 (fr) 2022-01-12
EP3934997C0 EP3934997C0 (fr) 2024-02-21
EP3934997B1 EP3934997B1 (fr) 2024-02-21

Family

ID=68841133

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19817691.9A Active EP3934997B1 (fr) 2019-03-05 2019-12-10 Entraînement de machines de découpe de bobines

Country Status (4)

Country Link
EP (1) EP3934997B1 (fr)
CN (1) CN113518752B (fr)
DE (1) DE102019105485A1 (fr)
WO (1) WO2020177910A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021119111A1 (de) 2021-07-23 2022-09-22 Voith Patent Gmbh Verfahren und Vorrichtung zum Aufwickeln einer Materialbahn in einer Rollenschneidmaschine

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3810589A (en) * 1972-01-28 1974-05-14 J Mousseau Process and apparatus for winding sheet material
US4238082A (en) * 1979-08-14 1980-12-09 Lund Morten A Method and apparatus for slitting and rewinding web materials
CN2097192U (zh) * 1990-12-08 1992-02-26 常州轻工机械厂 复卷机
DE4402874A1 (de) * 1994-02-01 1995-08-03 Beloit Technologies Inc System zur Erzeugung einer einwandfreien Wickelstruktur
CN2207371Y (zh) * 1994-04-01 1995-09-13 河南省周口市实用机械研究所 电脑控制精密盘纸分切机
JPH09172795A (ja) * 1995-12-18 1997-06-30 Toshiba Corp 巻取機制御装置
DE60127645T2 (de) * 2000-11-07 2008-01-31 Tsudakoma Kogyo K.K., Kanazawa Vorrichtung zum Steuern der Warenaufwicklung bei Webmaschinen
DE102008002315A1 (de) * 2008-06-09 2009-12-10 Voith Patent Gmbh Verfahren zur Optimierung der Betriebsweise einer Vorrichtung zum Aufwickeln einer Materialbahn in einer Rollenschneidmaschine und Rollenschneidmaschine
FI20086059L (fi) * 2008-11-10 2010-05-11 Metso Paper Inc Menetelmä kuiturainan pituusleikkurin yhteydessä
DE102010039007A1 (de) * 2010-08-06 2012-02-09 Voith Patent Gmbh Verfahren zum Aufwickeln einer Materialbahn und Rollenschneidvorrichtung
CN203033520U (zh) * 2012-12-25 2013-07-03 广州鹿山新材料股份有限公司 一种胶膜分切设备
CN203033522U (zh) * 2012-12-28 2013-07-03 湖南晶鑫科技股份有限公司 一种新型分切机
CN205099047U (zh) * 2015-10-27 2016-03-23 吉安市三江超纤无纺有限公司 一种面膜用无纺布裁切收卷装置
CN108217270A (zh) * 2018-03-19 2018-06-29 浙江德龙科技有限公司 一种传动及张力控制系统及其控制方法
CN109051948A (zh) * 2018-07-09 2018-12-21 广东辰宇电气有限公司 一种复卷机电气控制系统

Also Published As

Publication number Publication date
DE102019105485A1 (de) 2020-09-10
EP3934997C0 (fr) 2024-02-21
CN113518752A (zh) 2021-10-19
WO2020177910A1 (fr) 2020-09-10
CN113518752B (zh) 2023-07-28
EP3934997B1 (fr) 2024-02-21

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