EP2578525A2 - Dispositif d'enroulement et procédé d'enroulement d'une bande de papier ou de carton à largeur de bande - Google Patents

Dispositif d'enroulement et procédé d'enroulement d'une bande de papier ou de carton à largeur de bande Download PDF

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Publication number
EP2578525A2
EP2578525A2 EP12186267.6A EP12186267A EP2578525A2 EP 2578525 A2 EP2578525 A2 EP 2578525A2 EP 12186267 A EP12186267 A EP 12186267A EP 2578525 A2 EP2578525 A2 EP 2578525A2
Authority
EP
European Patent Office
Prior art keywords
web
paper
winding
drum
nip
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Withdrawn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
EP12186267.6A
Other languages
German (de)
English (en)
Other versions
EP2578525A3 (fr
Inventor
Walter Kaipf
Ewald Wetschenbacher
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 EP2578525A2 publication Critical patent/EP2578525A2/fr
Publication of EP2578525A3 publication Critical patent/EP2578525A3/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Withdrawn legal-status Critical Current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
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/28—Attaching the leading end of the web to the replacement web-roll core or spindle
    • 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
    • B65H2301/4141—Preparing winding process
    • B65H2301/41414—Preparing winding process involving pulper or doctor blade or air knife
    • 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
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/52—Auxiliary process performed during handling process for starting
    • B65H2301/522—Threading web into machine
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2405/00—Parts for holding the handled material
    • B65H2405/40—Holders, supports for rolls
    • B65H2405/45—Shafts for winding/unwinding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/10—Means using fluid made only for exhausting gaseous medium
    • B65H2406/12—Means using fluid made only for exhausting gaseous medium producing gas blast
    • B65H2406/122—Nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/84—Paper-making machines

Definitions

  • the invention relates to a winding device for web-width winding a fibrous web, in particular paper or board web, with a drum and a spool, between which a nip is formed.
  • the invention relates to a method for web-width winding a paper or board web, wherein the paper or board web is passed through a nip formed between a drum and a spool.
  • Relative space information in this document always refer to the direction of the paper or board web to be produced or processed.
  • the running direction of the train itself is referred to as the main direction (Main Direction).
  • the width of the web thus extends in the transverse direction (transverse direction).
  • the side where the web enters a pressure or nip is called "in front of the nip", the side where the web leaves the nip is behind the nip.
  • a fibrous web in addition to a paper or a board web, in particular a tissue web can be understood.
  • a full winding roll ie as a winding core with a finite number of winding layers stored on it. It has become naturalized various places, both forms, so both the winding core for itself and the full winding roll briefly just to call Tambour. To confusions It should be noted in advance that in this document to simplify the speech design of a tambour is spoken only in the sense of a hub.
  • the paper or board web is usually guided over the drum in the nip between the drum and drum, wherein the drum is driven and the drum is stored mostly essentially axially parallel to the drum mounted. If the drum has reached the desired diameter, ie a corresponding length of paper or cardboard web was wound on the spool, an exchange of the spool takes place in a flying change, ie without interrupting the production.
  • the paper or board web is usually knocked off at full production speed and listed immediately on the pre-accelerated empty drum.
  • the strip-shaped end of the paper or board web is transported via ropes or vacuum belts into the nip between drum and drum.
  • Nipauslauf so in the web running direction behind the nip, an operator leads the strip by means of a blowing device in a pulper, whose opening is arranged below the drum. It depends on the skill of the operator, whether the strip of paper or board web is safely detected and directed down specifically.
  • the paper or board web must be held in position simultaneously in the transverse direction of the machine.
  • a paper web can today reach speeds of 2000 m / min.
  • Heavyweight board webs can reach very high speeds of up to 1200 m / min on modern high-performance machines, so that in the case of a slight awkwardness of the operator, considerable paper or board masses can accumulate within a few seconds in the work area and lead to expansion of the production outage.
  • the invention is based on the object to support the listing of the tip or the strip on the spool with simple means.
  • this object is achieved in a winding device of the type mentioned in that at least a portion of the drum has circumferential grooves, wherein a blowing device is arranged in front of the nip, with a gas, in particular air, is inflatable into the circumferential grooves.
  • the attraction or adhesion between drum and paper or board web which has a significant share in the success of a Auf Mexicovorgangs, can be influenced by means of the blowing device.
  • the blowing device Once the blowing device is in operation and blows gas, in particular air, in the direction of rotation of the main cylinder in the circumferential grooves, the tambour exerts a greater attraction to the paper or board web.
  • the paper or board web strip is therefore guided on the spool. It is advantageous if the gas, in particular the air, is blown in the tangential direction into the, preferably radial, circumferential grooves.
  • the portion of the main cylinder having circumferential grooves extends only over an edge region, preferably with a width of about 0.2 meters to about 1.0 meters. Such an area is in most cases quite sufficient to ensure a safe performance process.
  • a large number of circumferential grooves can already be mounted on a partial area designed in this way, so that (due to the rotation of the main cylinder) a sufficiently broad surface is created, which forms a high adhesion to the paper or cardboard web to be picked up due to the gas blown into the circumferential grooves.
  • the processing or cost of providing a suitably trained drum is low.
  • a partial region formed in this way with circumferential grooves can preferably be arranged peripherally or approximately centrally in the Y direction.
  • a central arrangement is useful if the tail strip is to be cut centrally from the web.
  • the subsequent "spreading" is then in both directions (positive and negative Y direction) only less than half the working width to overcome.
  • both edge regions are equipped with a correspondingly grooved portion.
  • the first winding layers can create very clean on the drum to form the important core development.
  • the circumferential portion of the drum has at least one Third, preferably over half, most preferably over two-thirds of the area to be covered by the wound fibrous web in the axial direction (Y-direction) to be covered.
  • the listing of the tip or the strip of the running fibrous web is not only to support the tambour with simple means but also to make it particularly secure. Because of this, it is now possible, at least in sections, to guide a narrow strip after its transition to the spool, even during the subsequent "spreading" of the fibrous web, ie to take specific influence on the fibrous web and thus control the course of the threading process to have. It is now also possible to divide broader strips than heretofore usual from her web running path into the pulper on the tambour. These strips may then have, for example, about half of the fibrous web width.
  • the partial region of the main cylinder having circumferential grooves extends over the entire width of the region to be covered by the fibrous web to be wound in the axial direction (Y direction).
  • a plurality of individual nozzles can be arranged next to each other, wherein the nozzles are applied in series simultaneously or successively with pressure.
  • a beam for example in the form of a tube, has nozzle-like openings which essentially correspond in number and spacing to the circumferential grooves of the spool.
  • the blowing device coaxially with the drum, that is arranged in the Y direction, is movable and preferably during operation, very preferably motorized, movable.
  • a single nozzle or a small group of nozzles can be arranged to be movable in the transverse direction and then preferably be moved synchronously with the "Breitfahren" in Y-direction on the spool propagating fibrous web.
  • a very elegant and accurate performance is possible. Only a small amount of blowing air is needed, which saves process costs in the long term, although the manufacturing costs due to the required utilities should be slightly higher.
  • blowing device in particular the nozzle (s) of the blowing device, is preferably adjustable during operation.
  • blowing device During operation means not primarily while the blowing device is really active. Rather, it means that it is adjustable during the ongoing production of the paper or board web. As a result, it is in particular adaptable to different conditions and, for example, adaptable to a different spool shape or groove position without the production having to be interrupted. It is particularly preferred that the blowing device without manual intervention of an operator, ie automated, is adjustable.
  • the blowing device has a plurality of nozzles, wherein the nozzles are aligned according to the position and the nature of the circumferential grooves of a spool.
  • the blowing device is dimensioned such that the exit velocity of the gas pressurized by it is about 5% to 50%, preferably about 10% to 20% higher than the web speed.
  • the air blown into the circumferential grooves increases the velocity of the boundary air layer entrained with the web on one side, ie specifically on the underside, and influences the force ratio acting on the web. Similar to the wing of an aircraft, a force component arises in the direction of the side at which the gas flowing around has a higher velocity. At the specified speed range, the resulting force component, which is beneficial to the winding process, is higher than the pressure component produced in the respective groove.
  • blowing device is designed such that the pressure applied by her gas assumes a substantially laminar flow shape.
  • an airflow volume and / or an airflow pressure of at least one nozzle of the blowing device is changeable changeable, in particular during ongoing production.
  • a control device which controls at least one of the at least one blowing device as a function of the material web width.
  • the blowing device is activated and preferably turned off immediately thereafter.
  • the control device controls the air flow volume and / or the air flow pressure of the individual blowing devices. With the help of the control device can thus be carried out a partially automated Aufach a paper or board web on the spool.
  • the control device can be connected to a sensor which determines the width of the paper or board web.
  • An ideal Anwickelmen is therefore achievable when the presentation, that is, the passing of the paper or board web from its web travel path in the pulper to the spool, synchronously to the "spreading" of the paper or board web passes from its strip width to the full web width.
  • blowing device in particular the nozzle, is movable into a test position.
  • the blowing device in its test position is preferably particularly easily accessible to operating personnel.
  • the blowing device may even be movable in particular laterally out of the work area covered by the running paper or board web, in particular extendable.
  • the object is achieved in a method of the type mentioned above in that, depending on a web width of the paper or board web, a gas, in particular air, is blown by means of a blowing device in the circumferential grooves of the spool.
  • the circumferential grooves of the spool are preferably formed in edge regions or in a central region in the lateral surface of the spool.
  • the blowing device is arranged in front of the nip and blows a gas, in particular air, in the direction of the nip, that is to say in the direction of rotation or in the web running direction.
  • the blowing device is switched on, the attractive force of the spool increases to such an extent that the paper or cardboard web is wound onto the spool.
  • the gas in particular the air, is blown into the circumferential grooves at an exit velocity which is approximately 5% to 50%, preferably approximately 10% to 20%, higher than the speed of the paper or board web.
  • an air flow volume and / or an air flow pressure of at least one nozzle of the blowing device is controlled. It is of very particular advantage if the blowing device or the nozzle or the nozzles of the blowing device are controlled in dependence on the instantaneous fibrous web width and in particular with a movable in the Y direction cutting or separating device is synchronized. If the blowing device has a plurality of nozzles, it is particularly preferred for the nozzles to be controlled individually or in groups individually.
  • an air flow volume and / or an air flow pressure of the blowing devices is controlled.
  • the control can be carried out with the aid of a control unit depending on the width of the paper or board web.
  • the control unit may, for example, be connected to a tip cutter or obtain the information about the web width from a sensor device. This allows automated insertion and winding of the paper or board web on the spool.
  • Fig. 1 schematically a winding device 1 with a drum 2 and a drum 3 is shown, wherein between drum 2 and drum 3, a nip 4 is formed.
  • the winding device 1 is arranged at the end of a paper machine, not shown.
  • a paper or Cardboard web 5 is to be wound at the end of the paper machine on the winding device 1 web width, wherein the paper or board web 5 is wound on the spool 3.
  • the paper or board web 5 After a demolition, the paper or board web 5 must be reinserted into the nip 4.
  • one end of the paper or board web 5 is cut with the help of a lace cutter, so that a, usually marginal, narrower strip 5a (see. Fig. 2 ) of the paper or board web 5, which is easier to handle, is introduced into the nip 4, for example with the aid of ropes or vacuum bands.
  • This strip is not yet to be wound up on the spool 3. Rather, the paper or board web 5 should not follow behind the nip 4 not the drum 3, but the drum 2.
  • the paper or board web 5 or the strip 5a With the help of a scraper 6, the paper or board web 5 or the strip 5a is then lifted from a surface of the drum 2 and a Pulperö réelle 7 and thus fed to a pulper for reprocessing.
  • a blowing device 8 is now provided according to the invention, which is arranged in front of the nip 4 and a gas, in this case air, in the web running direction X of the paper or board web 5 blowing towards the nip 4. This is then preferably tangential and in the direction of rotation (arrow) of the main cylinder 3.
  • the blowing air passes in circumferential grooves 9, which are introduced at least in edge regions 10 of the main cylinder 3 ( Fig. 2 ), wherein the circumferential grooves 9 directly into the surface of the metallic Tambour stressess or in one, on it located, usually polymeric, Tambourbezug 15 may be introduced.
  • the adhesion between the spool 3 and the paper or board web 5 is significantly increased, whereby the threading onto the spool 3 takes place.
  • the at least one nozzle 11 of the blowing device 8 in the example shown in different degrees of freedom can be aligned and in the illustrated case also during operation adjustable.
  • the nozzle is mounted directly on a ball head in order to allow a precise tangential alignment with the circumferential grooves 9 of the main cylinder 3.
  • the distance to the nip 4 is adjustable to some extent. Preferred spacing ranges may be between about 0.05 meters and 0.60 meters.
  • the nozzle 11 is arranged to be movable in the transverse direction in order, for example, to follow the movement of the separating device 14 when the fibrous web 5 is extended.
  • the pointing in the Y direction double arrow with the reference numeral 13 for the working area of the blowing device 8 is marked.
  • the working area 13 extends in the transverse direction Y and can cover, for example, only a small part of the full web width b of the fibrous web to be produced or refined. However, for safe performance, for example, it can amount to about half or even more. It is thus preferable for a single nozzle 11 or a group of juxtaposed nozzles 11 to be moved during a threading operation along a guide aligned in the Y direction in order in each case to blow air into the circumferential grooves 9 where contacting of the paper sheets to be fed is effected. or cardboard web 5 with the drum 3 (immediately) is imminent and the blowing air as possible at least approximately for a full wrapping of the first winding layer.
  • a strip-shaped end 5a of the paper or board web can be listed on the spool 3.
  • the blowing device 8 provided according to the invention.
  • the activation of the blowing device 8 can take place in an automated sequence sequence.
  • the insertion process is thus possible in a shorter time than was previously known in the prior art, whereby overall productivity is increased. In this case, a risk of tearing off of the strip 5a of the paper or board web 5 is drastically reduced. A repetition of the insertion process is therefore usually not required. At the same time, operator safety increases significantly. Rather, a fully automatic control by means of a control device 12 is possible.
  • the control unit 12 is the schematic representation of the winding device 1 according to also shown here only schematically. The three superimposed circular arc sections on the control device 12, the blowing device 8 and the separating or cutting device 14 is intended to indicate a radio contact between these units. It goes without saying that a wired connection can also exist.
  • connection may include back and forth signals between the controller 12 and the modules operatively associated therewith (eg, at least 8 and 14).
  • the control unit 12 may of course also be part of a higher-level control device or be in contact with other control units.
  • the insertion operations described above by means of a strip-shaped insertion section 5a having a small width b ', the paper or board web to be fed to the winding process, relate preferred to online processes, that is, to a winding at the end of an ongoing production.
  • the width b ' may for example be 2% to 15% of the full fibrous web width b.
  • a full fibrous web width b typically ranges between 4.5 meters and 11.5 meters and depends heavily on the basis weight and desired productivity of the papermill or board mill's manufacturing or processing line.
  • a device according to the invention and a method according to the invention are, of course, also applicable to offline processes, that is to say to manufacturing or finishing processes of a paper or board web, which stand apart from the uninterrupted production process of the paper or board machine.
  • the paper or board web 5 it is particularly conceivable for the paper or board web 5 to be fed directly to the winding process by means of the device according to the invention in order to minimize the required scrap.
  • the gas in particular the air
  • the gas is then blown into the circumferential grooves 9 of the main cylinder 3 as a function of a controllable or controllable starting signal.
  • the start signal can be given for example by the operator himself on the basis of his observations or depend on a, determined by sensors, stable inflow of the fibrous web and then preferably automated synchronized with the movement in the Y direction of Schneidbe-ziehungêt separator 14.
  • the tambour 3 used in a known manner has circumferential grooves 9 in a known manner only in a narrow, approximately 0.2 m to 1.0 m wide marginal subarea. This is usually sufficient to ensure a safe and wrinkle-free Auf lakevorgang.
  • a tambour 3 use over a large portion in the Y direction has circumferential grooves and exemplified in FIG. 3 again shown separately.
  • the circumferential grooves 9 are radially aligned.
  • Such a spool 3 can then have a groove in particular over its entire working area.
  • Such a work area can correspond to the working area 13 of the blowing device 8 and moreover corresponds substantially to the full web width b of the fibrous web 5 to be produced or processed. It is conceivable that the circumferential grooves 9 are deeper towards the edge than in the central region. In order to ensure equality of side of the main cylinder 3, however, it is advantageous if the depth of the respective circumferential grooves 9, viewed from the center, extends symmetrically to both end-side edge regions of the main cylinder 3.

Landscapes

  • Replacement Of Web Rolls (AREA)
  • Winding Of Webs (AREA)
EP12186267.6A 2011-10-04 2012-09-27 Dispositif d'enroulement et procédé d'enroulement d'une bande de papier ou de carton à largeur de bande Withdrawn EP2578525A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201110083943 DE102011083943A1 (de) 2011-10-04 2011-10-04 Wickelvorrichtung und Verfahren zum Wickeln einer bahnbreiten Papier- oder Kartonbahn

Publications (2)

Publication Number Publication Date
EP2578525A2 true EP2578525A2 (fr) 2013-04-10
EP2578525A3 EP2578525A3 (fr) 2013-11-13

Family

ID=46963594

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12186267.6A Withdrawn EP2578525A3 (fr) 2011-10-04 2012-09-27 Dispositif d'enroulement et procédé d'enroulement d'une bande de papier ou de carton à largeur de bande

Country Status (2)

Country Link
EP (1) EP2578525A3 (fr)
DE (1) DE102011083943A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT16578U1 (de) * 2014-08-25 2020-01-15 Voith Patent Gmbh Tambour
CN113329962A (zh) * 2019-01-24 2021-08-31 福伊特专利有限公司 卷绕时的料幅转移

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112722944B (zh) * 2020-12-24 2023-02-10 重庆瑞霆塑胶有限公司 一种吹膜机的换卷装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4147287A (en) * 1978-01-05 1979-04-03 Crown Zellerbach Corporation Reel threading system
DE19848813A1 (de) * 1998-10-22 2000-04-27 Voith Sulzer Papiertech Patent Wickelmaschine
JP2001114459A (ja) * 1999-10-18 2001-04-24 Mitsubishi Heavy Ind Ltd リール枠替装置及びリール枠替方法
DE20104166U1 (de) * 2001-03-10 2001-06-21 Voith Paper Patent GmbH, 89522 Heidenheim Bahnaufwickelvorrichtung
DE102004037436A1 (de) * 2004-07-30 2006-03-23 Voith Paper Patent Gmbh Verfahren zum Überführen einer laufenden Faserstoffbahn auf einen Wickelkern sowie Vorrichtung zur Durchführung des Verfahrens

Non-Patent Citations (1)

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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT16578U1 (de) * 2014-08-25 2020-01-15 Voith Patent Gmbh Tambour
CN113329962A (zh) * 2019-01-24 2021-08-31 福伊特专利有限公司 卷绕时的料幅转移
CN113329962B (zh) * 2019-01-24 2023-11-03 福伊特专利有限公司 卷绕时的料幅转移

Also Published As

Publication number Publication date
EP2578525A3 (fr) 2013-11-13
DE102011083943A1 (de) 2013-04-04

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