EP0732287A2 - Dispositif pour stabiliser une bande - Google Patents

Dispositif pour stabiliser une bande Download PDF

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Publication number
EP0732287A2
EP0732287A2 EP96102507A EP96102507A EP0732287A2 EP 0732287 A2 EP0732287 A2 EP 0732287A2 EP 96102507 A EP96102507 A EP 96102507A EP 96102507 A EP96102507 A EP 96102507A EP 0732287 A2 EP0732287 A2 EP 0732287A2
Authority
EP
European Patent Office
Prior art keywords
suction
web
suction box
zone
box
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Withdrawn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
EP96102507A
Other languages
German (de)
English (en)
Other versions
EP0732287A3 (fr
Inventor
Bernd Kaufmann
Herbert Illenberger
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 Sulzer Papiermaschinen GmbH
Original Assignee
Voith Sulzer Papiermaschinen 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 Sulzer Papiermaschinen GmbH filed Critical Voith Sulzer Papiermaschinen GmbH
Publication of EP0732287A2 publication Critical patent/EP0732287A2/fr
Publication of EP0732287A3 publication Critical patent/EP0732287A3/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Withdrawn legal-status Critical Current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
    • B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B65H19/18—Attaching, e.g. pasting, the replacement web to the expiring web
    • B65H19/1857—Support arrangement of web rolls
    • B65H19/1863—Support arrangement of web rolls with translatory or arcuated movement of the roll supports
    • 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
    • B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B65H19/18—Attaching, e.g. pasting, the replacement web to the expiring web
    • B65H19/1805—Flying splicing, i.e. the expiring web moving during splicing contact
    • B65H19/181—Flying splicing, i.e. the expiring web moving during splicing contact taking place on the replacement roll
    • B65H19/1821—Flying splicing, i.e. the expiring web moving during splicing contact taking place on the replacement roll the replacement web being accelerated or running prior to splicing contact
    • 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
    • B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
    • B65H23/022—Registering, tensioning, smoothing or guiding webs transversely by tentering devices
    • 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
    • B65H23/24—Registering, tensioning, smoothing or guiding webs longitudinally by fluid action, e.g. to retard the running web
    • B65H23/245—Suction retarders
    • 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
    • B65H2301/413—Supporting web roll
    • B65H2301/4136—Mounting arrangements not otherwise provided for
    • B65H2301/41361—Mounting arrangements not otherwise provided for sequentially used roll supports for the same web roll
    • 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
    • B65H2301/417—Handling or changing web rolls
    • B65H2301/4171—Handling web roll
    • B65H2301/4173—Handling web roll by central portion, e.g. gripping central portion
    • B65H2301/41734—Handling web roll by central portion, e.g. gripping central portion involving rail

Definitions

  • the invention relates to a device for stabilizing a web with a suction box according to the preamble of claim 1.
  • suction boxes are used, among other things, for web stabilization in unwinding stations of a paper coating machine.
  • the paper webs are made endless in these unwinding stations so that continuous processing is possible. This making endless is done by gluing it to the next full wrap before one wrap is completely empty. The remaining web of the almost empty secondary reel is cut off with a toothed knock-off knife and instead the new web start of the large reel is pulled through the coating machine.
  • This flying gluing process is mostly referred to as "flying splice" in the paper industry; see Voith p2827.
  • a problem in such unwinding stations is that the separation process is carried out as safely as possible.
  • a web stabilizer is arranged behind the tee knife.
  • This has the disadvantage that a relatively long residual flag remains after the cutting process (this is at least the length of the material web from the interface to the point of contact between the adhesive roller and the new roll).
  • a relatively long residual flag remains after the cutting process (this is at least the length of the material web from the interface to the point of contact between the adhesive roller and the new roll).
  • the object on which the invention is based is to achieve a separation process which is as clean and safe as possible, the ripple arising in the material web being to be eliminated as far as possible.
  • the suction zone according to the invention acts - in the presence of negative pressure - in such a way that the paper web is sucked in uniformly over its entire width, thereby smoothing out any waves that extend in the direction of web travel. This enables a clean separation of the web from the secondary winding.
  • the outlet rounding 18 Shortly before the secondary winding 2 (i.e. the material web that is unwinding) comes to an end, the primary winding 1 is accelerated in rotation until the Circumferential speed of the primary winding 1 and the web speed match.
  • the suction box 4 is subjected to a defined negative pressure, as a result of which the material web 7 no longer slides over the suction box, but rather is drawn into the depression (suction zone 25) shown in FIGS. 1, 5 and 6.
  • This results in a good smoothing effect of the web ie there is a compensation of the waves that previously ran in the longitudinal direction of the web) between the adhesive roller 5 and the paper guide roller 6 in front of it.
  • the tee knife 10, 10 can also leveled in front of and behind the suction box, tee knife 10, 10 'both between the suction box 4 and the adhesive roller 5 and between the suction box and the paper guide roller 6 in front of it.
  • the first position (tee knife 10) has the advantage that the remaining flag is considerably shorter.
  • control electronics By marking on the circumference of the primary winding 1, control electronics recognize where the prepared adhesive point is on the circumference of the primary winding 1. If an adhesive process is now initiated (manually or automatically), the adhesive roller 5 is suddenly pressed against a primary winding 1 and the knock-off knife 10 is moved against the web 7 depending on the rotation of the adhesive point. The already unwound web of the secondary winding 2 is then kept away from the adhesive nip N in a manner known per se by means of blowing devices (not shown here).
  • FIG. 3 is intended to illustrate the reinforcing effect of the web ripple in the vertical plane 8 intended for the direction of travel by the interaction of the web movement together with the movement of the knock-off knife 10, as is formed in the prior art.
  • the reinforced waves are shown in dash-dotted lines in the resulting sectional plane 9, in which the cutting knife engages obliquely.
  • FIG. 4 shows various errors of the web discount without a suction box.
  • Section 11 represents the error-free cut, i. H. only the jagged effect on the paper web, caused by the serrated cutting knife, is noticeable.
  • the serrated line is overlaid with a paper ripple.
  • Section 13 on the other hand, could have produced a corresponding cutting line, similar to section 12.
  • Section 14 also shows the ripple of the paper web.
  • the ripple was much lower at this point, so that the serrated shape was not so much overlaid by an arch shape.
  • the suction box shown in Figure 5 is a sheet metal construction. Instead of many suction openings 19 facing the web, as shown in FIGS. 11 to 13, only a single one can also be present, as shown in FIG.
  • the suction box contains rounded suction zone edges 16 that can be formed independently of one another, inlet and outlet curves 17 and 18, and end suction zone ends 20.
  • the suction box 4 shown in Figure 6 is of simple construction, but made from the semi-finished tube.
  • the area between the mutually facing pipe jacket lines must be almost airtight, possibly by means of a connecting part.
  • the suction openings 19 are either in at least one tube 17 or 18.
  • the suction device 15 can be arranged on the pipe ends or arbitrarily on the pipe jacket.
  • the suction zone 25 is delimited on the end face by terminations 20. These are wedge-shaped here due to the shape to be sealed.
  • FIG. 7 is a section through a suction box made of pipes, as has already been explained in FIG. 6.
  • FIG. 8 shows the associated view A.
  • the web is partially drawn into the suction zone 25. This creates a wave extending transversely to the running direction 22 of the web 7 (this is the concavely drawn line), whereby - as already mentioned - the existing waves running in the longitudinal direction 22 (the longitudinal waves can be seen in FIG. 3) are smoothed and thereby a clean knocking off of the web 7 from the secondary winding 2 is achieved.
  • so-called spreader elements are provided on the suction box 4. These elements can either be spreader slots 23 or spreader cams 24.
  • the spreader elements are preferably arranged at each end of the suction box 4. Seen in the direction of web travel 22, these are inclined towards the nearest edge 21 of the web. Its incline increases from element to element, deviating up to approx. 30 ° from the web running direction.
  • the suction openings 19 provided in addition to the spreader slots 23 are required so that the rounded suction zone edges 16 are wrapped well.
  • FIGS. 9 and 10 represent an analogous solution to FIGS. 7 and 8.
  • an elongated cam is used as the spreader element. Because of the tight wrapping of these cams 24, their edges have a good spreading effect.
  • a so-called spreading effect with the spreading elements 23 and 24 results from the material web 7 sliding over the previously described inclined edge of the spreading elements 23 and 24. This additionally supports the smoothing of the web.
  • FIGS. 6 to 10 show a suction zone open towards the web 7, in FIG. 14 the suction zone 25 is delimited by a plate 30. As a result, the web is not drawn into the "depression".
  • a large number of suction openings 19 are incorporated in the plate 30.
  • the suction openings 19 are preferably arranged in parallel one behind the other, as shown in FIGS. 11 to 13. So that a uniform negative pressure prevails over the entire web width when the suction device 15 is connected, and the web is thus free of waves and is guided over the suction zone 25, the areas of the suction openings 19 are designed to be continuously larger.
  • the starting point for the continuous area enlargement of the openings 19 in the longitudinal direction of the plate 30 is the location of the suction device applied. This means that where the suction device 15 acts, the suction effect is also greatest. In this area, the suction openings 19 can be made smaller than those which are arranged in an area remote from the suction device. Instead of the plate 30 shown and described, a sieve-like structure would also be conceivable.
  • suction openings 19 can be used instead of the only longitudinal suction opening 19 shown in FIG.

Landscapes

  • Replacement Of Web Rolls (AREA)
  • Advancing Webs (AREA)
EP96102507A 1995-03-17 1996-03-01 Dispositif pour stabiliser une bande Withdrawn EP0732287A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29504553U 1995-03-17
DE29504553U DE29504553U1 (de) 1995-03-17 1995-03-17 Vorrichtung zum Stabilisieren einer Warenbahn

Publications (2)

Publication Number Publication Date
EP0732287A2 true EP0732287A2 (fr) 1996-09-18
EP0732287A3 EP0732287A3 (fr) 1997-05-21

Family

ID=8005481

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96102507A Withdrawn EP0732287A3 (fr) 1995-03-17 1996-03-01 Dispositif pour stabiliser une bande

Country Status (5)

Country Link
US (1) US5779184A (fr)
EP (1) EP0732287A3 (fr)
BR (1) BR9600665A (fr)
CA (1) CA2171990A1 (fr)
DE (1) DE29504553U1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0959033A2 (fr) * 1998-05-18 1999-11-24 Kabushiki Kaisha Tokyo Kikai Seisakusho Méthode et dispositif pour atténuer le flottement d'une bande, et application au raccordement de bandes
WO2004018337A1 (fr) * 2002-08-20 2004-03-04 Metso Paper, Inc. Dispositif relie a un dispositif de raccordement permettant le deroulement continu d'une nappe fibreuse, en particulier une bande de papier ou de carton
EP1488711A1 (fr) * 2003-06-20 2004-12-22 Hauni Maschinenbau AG Procédé et dispositif pour la mise en oeuvre d'une machine de l'industrie du tabac
ITFI20110277A1 (it) * 2011-12-29 2013-06-30 Celli Nonwovens Spa "svolgitore di bobine di materiale nastriforme"

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19804415C1 (de) * 1998-02-05 1999-08-26 Vits Maschinenbau Gmbh Verfahren und Vorrichtung zum Kürzen der Fahne im Anschluß an einen fliegenden Rollenwechsel
US6161793A (en) * 1999-01-22 2000-12-19 Lindstrand; Bruce L. Paper unwind splicer for drawing from the top or bottom of a reel
US6285994B1 (en) * 1999-05-25 2001-09-04 International Business Machines Corporation Method and system for efficiently searching an encoded vector index
DE19931797C1 (de) * 1999-07-08 2000-12-07 Vits Maschinenbau Gmbh Verfahren und Vorrichtung zum Kürzen der Fahne im Anschluß an einen fliegenden Rollenwechsel
FI114907B (fi) * 2000-02-15 2005-01-31 Metso Paper Inc Menetelmä ja laitteisto aukirullauksessa
IT1318105B1 (it) * 2000-07-05 2003-07-23 Giovanni Gambini Dispositivo per la giunzione di un lembo finale di una bobina di carta in esaurimento con il lembo iniziale di una nuova bobina.
WO2004074754A1 (fr) 2003-02-14 2004-09-02 3M Innovative Properties Company Dispositif de positionnement de bande
TW200512147A (en) * 2003-07-25 2005-04-01 Black Clawson Converting Machinery Inc Method and apparatus for splicing webs
DE102004038769A1 (de) * 2004-08-09 2006-02-23 Voith Fabrics Patent Gmbh Vorrichtung zur Bahnstabilisierung
ITRM20070233A1 (it) * 2007-04-20 2008-10-21 Danieli Off Mecc Sistema di guida per un nastro metallico in uscita da un laminatoio
US8163118B2 (en) 2009-06-21 2012-04-24 Jere F. Irwin Thermoformable web splicer and method
WO2012142405A1 (fr) 2011-04-13 2012-10-18 Megtec Systems, Inc. Méthode et appareil de revêtement de sections indépendantes
JP5964954B2 (ja) 2011-06-03 2016-08-03 メグテック システムズ インコーポレイテッド ウェブリフター／スタビライザー及び方法
US10104784B2 (en) 2015-11-06 2018-10-16 Nxp B.V. Method for making an electronic product with flexible substrate
US9994407B2 (en) 2015-11-06 2018-06-12 Nxp B.V. System and method for processing a flexible substrate
US10457512B2 (en) 2016-09-19 2019-10-29 New Era Converting Machinery, Inc. Automatic lapless butt material splice

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Publication number Priority date Publication date Assignee Title
US2710153A (en) * 1954-03-11 1955-06-07 Research Corp Web tension control system
US4002047A (en) * 1975-07-07 1977-01-11 Baldwin-Gegenheimer Corporation Sheet material decurling apparatus
DE3815277A1 (de) * 1987-06-23 1989-01-12 Voith Gmbh J M Saugkasten
JPH06320492A (ja) * 1993-05-10 1994-11-22 Hitachi Maxell Ltd ウエブの分断方法とウエブの分断装置

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DE675879C (de) * 1937-10-12 1939-05-20 Carl Richard Merten Jigger mit Breithaltern
DE853255C (de) * 1946-06-26 1952-10-23 Beloit Iron Works Stoffverteilkasten fuer den Auflauf einer Papiermaschine
US3132544A (en) * 1959-03-25 1964-05-12 Sonobond Corp Positioning and splicing apparatus for positioning and splicing webs
DE1499016B (fr) * 1965-04-01 1970-02-12
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IT227176Y1 (it) * 1992-11-11 1997-09-15 Ocme Srl Dispositivo per la giunzione di film di materiale plastico termoestraibile in una macchina utilizzante detto film
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IT1263427B (it) * 1993-06-01 1996-08-05 Gd Spa Dispositivo per la giunzione automatica di nastri di ridotte dimensioni trasversali.
DE4336298A1 (de) * 1993-10-25 1995-04-27 Bachofen & Meier Maschf Abwickelvorrichtung mit einer Spliceeinrichtung

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Publication number Priority date Publication date Assignee Title
US2710153A (en) * 1954-03-11 1955-06-07 Research Corp Web tension control system
US4002047A (en) * 1975-07-07 1977-01-11 Baldwin-Gegenheimer Corporation Sheet material decurling apparatus
DE3815277A1 (de) * 1987-06-23 1989-01-12 Voith Gmbh J M Saugkasten
JPH06320492A (ja) * 1993-05-10 1994-11-22 Hitachi Maxell Ltd ウエブの分断方法とウエブの分断装置

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PATENT ABSTRACTS OF JAPAN vol. 095, no. 002, 31.März 1995 & JP 06 320492 A (HITACHI MAXELL LTD), 22.November 1994, *

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0959033A2 (fr) * 1998-05-18 1999-11-24 Kabushiki Kaisha Tokyo Kikai Seisakusho Méthode et dispositif pour atténuer le flottement d'une bande, et application au raccordement de bandes
EP0959033A3 (fr) * 1998-05-18 2000-09-27 Kabushiki Kaisha Tokyo Kikai Seisakusho Méthode et dispositif pour atténuer le flottement d'une bande, et application au raccordement de bandes
US6241179B1 (en) 1998-05-18 2001-06-05 Kabushiki Kaisha Tokyo Kikai Seisakusho Method and apparatus for web flutter containment, and application to web splicing
WO2004018337A1 (fr) * 2002-08-20 2004-03-04 Metso Paper, Inc. Dispositif relie a un dispositif de raccordement permettant le deroulement continu d'une nappe fibreuse, en particulier une bande de papier ou de carton
EP1488711A1 (fr) * 2003-06-20 2004-12-22 Hauni Maschinenbau AG Procédé et dispositif pour la mise en oeuvre d'une machine de l'industrie du tabac
ITFI20110277A1 (it) * 2011-12-29 2013-06-30 Celli Nonwovens Spa "svolgitore di bobine di materiale nastriforme"
WO2013098765A2 (fr) 2011-12-29 2013-07-04 A.Celli Nonwovens S.P.A. Dérouleur de rouleaux de matière en bande
WO2013098765A3 (fr) * 2011-12-29 2013-10-31 A.Celli Nonwovens S.P.A. Dérouleur de rouleaux de matière en bande
CN104105649A (zh) * 2011-12-29 2014-10-15 A.塞利无纺股份公司 幅材材料的卷筒的退绕机
RU2602193C2 (ru) * 2011-12-29 2016-11-10 А.Челли Нонуовенз С.П.А. Разматыватель катушек с рулонным материалом
CN104105649B (zh) * 2011-12-29 2016-12-07 A.塞利无纺股份公司 幅材材料的卷筒的退绕机
US9550644B2 (en) 2011-12-29 2017-01-24 A.Celli Nonwovens S.P.A. Unwinder of reels of web material

Also Published As

Publication number Publication date
DE29504553U1 (de) 1995-06-14
US5779184A (en) 1998-07-14
CA2171990A1 (fr) 1996-09-18
EP0732287A3 (fr) 1997-05-21
BR9600665A (pt) 1997-12-30

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