EP0733729A1 - Saugzylinder, der die Übergabe von Faservlies zwischen einem Transportband und zwei Kalanderwalzen ermöglicht - Google Patents

Saugzylinder, der die Übergabe von Faservlies zwischen einem Transportband und zwei Kalanderwalzen ermöglicht Download PDF

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Publication number
EP0733729A1
EP0733729A1 EP96490017A EP96490017A EP0733729A1 EP 0733729 A1 EP0733729 A1 EP 0733729A1 EP 96490017 A EP96490017 A EP 96490017A EP 96490017 A EP96490017 A EP 96490017A EP 0733729 A1 EP0733729 A1 EP 0733729A1
Authority
EP
European Patent Office
Prior art keywords
cylinder
calendering
suction
conveyor belt
web
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
EP96490017A
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English (en)
French (fr)
Other versions
EP0733729B1 (de
Inventor
Marc Brabant
Jean-Louis Dupont
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.)
Thibeau SA
Original Assignee
Thibeau SA
Thibeau et Cie SA
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 Thibeau SA, Thibeau et Cie SA filed Critical Thibeau SA
Publication of EP0733729A1 publication Critical patent/EP0733729A1/de
Application granted granted Critical
Publication of EP0733729B1 publication Critical patent/EP0733729B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G25/00—Lap-forming devices not integral with machines specified above
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
    • D01G15/02—Carding machines
    • D01G15/12—Details
    • D01G15/46—Doffing or like arrangements for removing fibres from carding elements; Web-dividing apparatus; Condensers
    • D01G15/465—Doffing arrangements for removing fibres using, or cooperating with, pneumatic means

Definitions

  • the present invention relates to the transfer of a fibrous web between a conveyor belt and two calendering cylinders. It more particularly relates to the new use of a suction cylinder to achieve such a transfer.
  • the invention finds its application in particular to conveyor belts interposed between the outlet of a card and the calendering cylinders.
  • the web undergoes in the intermediate zone between the conveyor belt and the calendering cylinders a flutter, which is detrimental to its cohesion.
  • the conveyor belt and the calendering cylinders due to their movement, generate aeraulic turbulence, which is all the more important the greater the speed of the calendering cylinders of the conveyor belt, and which results in a risk of formation of transverse folds in the veil during its transfer.
  • the direct recovery of the fibrous web from the conveyor belt by the calendering cylinders must in practice be carried out with a significant stretch of the fibrous web in the direction of its length, this stretching being able to reach 50% with linear speeds of the conveyor belt of the order of 100m / min.
  • the fibrous veil at the end of the card and before calendering has very low cohesion. Consequently, when one provokes a stretching in the direction of the length, one reduces all the more the cohesion of this veil.
  • the stretching of the veil becomes too great, a poor quality veil is obtained as regards its appearance, its regularity in weight and the isotropy of its mechanical properties.
  • This drawback linked to the stretching of the web is particularly critical in the case of scrambled and / or condensed webs which have a lower longitudinal resistance than the parallel webs.
  • the object of the present invention is to provide a device for transferring a fibrous web between a conveyor belt and two calendering rolls, which makes it possible to solve the aforementioned problems.
  • this transfer device consists of a suction cylinder which has a fixed suction sector, which is rotated in the same direction as the conveyor belt and in the direction of reverse rotation of the lower calendering cylinder.
  • This suction cylinder is interposed on the course of the web between the conveyor belt and the two calendering cylinders, being tangent or almost tangent to the lower calendering cylinder; in other words, the distance separating the surfaces of the suction cylinder and the lower calendering cylinder is zero or less than the thickness of the web, so that these two cylinders delimit between them a pre-calendering zone, at the level from which the fibrous web undergoes compression which causes it to adhere to the surface of the lower calendering cylinder.
  • the suction cylinder is further positioned near the conveyor belt so that the fibrous web is pressed against the surface of said cylinder by suction, and is held there by suction to said pre-calendering zone. Beyond this pre-calendering zone, the fibrous web is entrained on the surface of the lower calendering cylinder up to the upper calendering cylinder.
  • the aforementioned characteristics of the device of the invention make it possible to reduce the stretching and to reduce the risks of floating of the web during its transfer, that being applied continuously to the surface of the suction cylinder, then to the surface of the lower calendering cylinder. .
  • the directions of rotation of the suction cylinder and the lower calendering cylinder being reversed, the transfer of the web between these two cylinders is advantageously done without a cusp, and therefore without modification of the structure of the fibrous web.
  • suction cylinders in the textile sector are already widespread. It is notably known from French patent N ° 1500746 to use a suction cylinder to detach a fibrous web at the end of the card. In French patent N ° 2612949, it is taught to use at least two adjacent perforated hollow cylinders to consolidate a veil or a textile web. In the French certificate of addition FR.81.287, it is envisaged to use a condensing cylinder aspirant in a facility for the manufacture of wire, in order to remove the large drum usually used. In addition, to facilitate the recovery of the veil at the periphery of the condensing cylinder a suction detaching cylinder is used.
  • the present invention therefore resides in the new application of a suction cylinder which is moreover already known as such.
  • the suction cylinder performs a new function of transferring a fibrous web between a conveyor belt and two calendering cylinders, with a view to obtaining the abovementioned results and advantages.
  • suction cylinder it is possible in the context of the invention to position the suction cylinder at the end of the conveyor belt, and in the extension of said band.
  • this alternative embodiment has the drawback of generating a risk of the fibrous web floating in its passage from the conveyor belt to the surface of the suction cylinder.
  • the suction cylinder will be tangent or almost tangent to the belt of the conveyor belt, and will allow compression of the fibrous web between these two members. This avoids any risk of the veil floating during its transfer.
  • a fibrous web 1 from a card is conveyed by a conveyor belt 2 near two calendering cylinders 3 a , 3 b heated .
  • the surface of the calendering rollers 3 a and 3 b is brought to a temperature close to the softening temperature of the fibers of the fleece, so as to thermally bond these fibers by compression and heating, during the passage of the fleece. between the two calendering cylinders.
  • the conveyor belt 2 consists in a known manner of an endless belt 2 a stretched between drums 2 b driven in rotation.
  • the band 2 has is permeable to air and will, for example made of polypropylene.
  • Only the end portion of the nearest conveyor belt of the two calendering cylinders 3a, 3b has been shown.
  • the transfer of the fibrous web 1 between the conveyor belt 2 and the two calendering cylinders 3 a , 3 b is carried out by means of a suction cylinder 4.
  • this cylinder is hollow with a perforated peripheral wall 5.
  • two fixed partitions 6 a , 6 b delimiting between them a suction sector AB which is symbolized in FIG. 1 by a grid.
  • the depression of the sector delimited by the partitions 6 a , 6 b is known and will therefore not be detailed.
  • French patent N ° 1500746 which is an integral part of the present description.
  • the suction cylinder 4 is on the one hand almost tangent to the point T 1 to the belt 2 a of the conveyor 2 and on the other hand almost tangent to the lower calendering cylinder 3 a at the point T 2 . Furthermore, the suction cylinder 4 is positively driven in rotation in the direction of the arrow F so as to have a peripheral speed substantially equal to the linear speed of routing of the fibrous web 1 by the conveyor 2.
  • the two calendering cylinders 3 a , 3 b are rotated in opposite directions, the direction of rotation of the lower cylinder 3 a being opposite to the direction of rotation of the suction cylinder 4.
  • the distance d 1 between the surface 5a of the peripheral wall 5 of the suction cylinder 4 and the strip 2 a of the conveyor 2, at the point of tangency T 1 , is chosen to be sufficiently small so that the fibrous web 1 undergoes compression during its passage between the suction cylinder 4 and the conveyor 2. During compression, the air contained in the web escapes through the perforations in the wall 5.
  • the suction cylinder 4 and the lower calendering cylinder 3 a define between them a zone for pre-calendering the fibrous web, on either side of the point T 2 .
  • the fibers of the sail undergo a slight softening under the combined effects of compression and heating.
  • the distance d 2 which separates the surface 5 a from the peripheral wall 5 of the cylinder 4 and the surface of the lower calendering cylinder 3 a , at point T 2 is sufficiently small so that under the combined effects of heating and compression, the fibrous web adheres to the surface of the lower calendering cylinder 3 a beyond point T 2 .
  • the peripheral wall 5 of the suction cylinder 4 will be made of a perforated metal sheet, and will therefore not be damaged by heating and compression.
  • the transfer of the web 1 between the conveyor belt 2 and the calendering cylinders 3 a , 3 b takes place as follows.
  • the fibrous veil undergoes a compression between the strip 2 a and the suction cylinder 4.
  • the fibrous veil 1 is pressed against the periphery of the suction cylinder 4 under the effect of the suction flow generated in the sector AB, and is driven by the suction cylinder 4 in rotation up to the pre-calendering zone centered on the point T 2 .
  • the web is constantly maintained by suction at the periphery of the cylinder 4, the points A and B corresponding to the beginning and the end of the suction sector being in the example illustrated respectively upstream of the point T 1 and downstream of point T 2 , with respect to the direction of travel of the web 1.
  • the fibrous web adheres to the surface of the lower calendering cylinder 3 a , and is conveyed by this cylinder up to the calendering point T 3 .
  • the point A which marks the beginning of the suction sector of the cylinder 4 is located upstream of the point of tangency T 1 relative to the direction of travel of the web, so that the suction flow facilitates the expulsion of the air contained in the web during compression between the suction cylinder 4 and the strip 2 a of the conveyor 2.
  • the partition 6 a could indeed be mounted so that point A is merged with point T 1 , or even is positioned slightly downstream of this point, while preferably remaining in the compression zone of the web.
  • the end of the suction sector (B) could be confused with point T 2 , or even be positioned slightly upstream of this point, while preferably remaining in the pre-calendering zone of the web.
  • the angular positioning of the two partitions 6 a , 6 b will preferably be adjustable.
  • the relative position of the three cylinders 3 a , 3 b , 4, and of the conveyor belt 2 is judiciously chosen so as to limit the distance of travel of the web between the points T 1 and T 3 , which increases the reliability of the veil transfer.
  • the lower cylinder 3 a is positioned relative to the suction cylinder 4 so as to minimize the distance between the points T 1 and T 2 , while maintaining a distance e 1 sufficient to avoid the creation of a zone of turbulence in the intermediate zone between the suction cylinder 4, the conveyor belt 2 and the calendering cylinder 3 a .
  • the calendering cylinder 3 b is positioned relative to the suction cylinder 4 so as to limit the portion of the periphery of the lower calendering cylinder 3 a which is in contact, between the points T 2 and T 3 , with the fibrous veil, while maintaining a spacing e 2 which is sufficient to avoid the creation of a zone of turbulence at the intersection of the three cylinders, due to the opposing surface air currents generated by the rotation of the cylinders 4 and 3 b (arrows E, F).
  • the peripheral linear speed of the two calendering cylinders 3 a , 3 b was worth 250 m / min; the peripheral speed of the suction cylinder 4 was identical to the running speed of the strip 2 a and was 217 m / min. There was therefore obtained a transfer of the fibrous web between the conveyor belt and the two calendering rolls with a stretch of the order of 15%.
  • the suction cylinder 4 is not necessarily positioned above the conveyor belt 2 a as illustrated in FIG. 1, but could for example be placed directly downstream of the drive drum 2 b of such that the portion of its periphery corresponding to the suction sector AB is substantially in the extension of the fibrous web arriving at the level of the drum 2 b.
  • the suction cylinder 4 may generally be constituted by any cylinder whose l he peripheral envelope is breathable.
EP96490017A 1995-03-22 1996-03-11 Saugzylinder, der die Übergabe von Faservlies zwischen einem Transportband und zwei Kalanderwalzen ermöglicht Expired - Lifetime EP0733729B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9503573A FR2732042B1 (fr) 1995-03-22 1995-03-22 Cylindre aspirant permettant le transfert d'un voile fibreux entre un tapis de transport et deux cylindres de calandrage
FR9503573 1995-03-22

Publications (2)

Publication Number Publication Date
EP0733729A1 true EP0733729A1 (de) 1996-09-25
EP0733729B1 EP0733729B1 (de) 1997-12-29

Family

ID=9477453

Family Applications (1)

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EP96490017A Expired - Lifetime EP0733729B1 (de) 1995-03-22 1996-03-11 Saugzylinder, der die Übergabe von Faservlies zwischen einem Transportband und zwei Kalanderwalzen ermöglicht

Country Status (7)

Country Link
US (1) US6050469A (de)
EP (1) EP0733729B1 (de)
JP (1) JPH08260375A (de)
AT (1) ATE161591T1 (de)
DE (2) DE69600129T2 (de)
DK (1) DK0733729T3 (de)
FR (1) FR2732042B1 (de)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0837163A1 (de) * 1996-10-11 1998-04-22 Oskar Dilo Maschinenfabrik KG Anlage und Verfahren für die Vliesherstellung aus Fasermaterial
EP0899370A2 (de) * 1997-08-28 1999-03-03 Spinnbau GmbH Vlieskalander
WO2000056960A1 (fr) * 1999-03-23 2000-09-28 Asselin Etaleur-nappeur
EP2085504A1 (de) 2008-02-04 2009-08-05 ALBIS Spa Saugvorrichtung zum Überführen einer Vliesstoffbahn
EP2417952A1 (de) * 2010-08-12 2012-02-15 Johnson & Johnson do Brasil Industria e Comercio de Produtos Para Saude Ltda. Verfahren und Vorrichtung zur Herstellung eines faserigen Artikels
EP2417951A1 (de) * 2010-08-12 2012-02-15 Johnson & Johnson do Brasil Industria e Comercio de Produtos Para Saude Ltda. Verfahren und Vorrichtung zur Herstellung eines faserigen Artikels mit dreidimensionalem Profil und aufnahmefähiger Artikel mit dem geformten faserigen Artikel
AU2011211354B2 (en) * 2010-08-12 2015-11-05 JNTL Consumer Health (Brazil) Ltda. Apparatus for making a fibrous article
AU2011211389B2 (en) * 2010-08-12 2016-03-17 JNTL Consumer Health (Brazil) Ltda. Method for making a fibrous article
AU2011211422B2 (en) * 2010-08-12 2016-03-17 JNTL Consumer Health (Brazil) Ltda. Apparatus for making a fibrous article having a three dimensional profile
AU2011211440B2 (en) * 2010-08-12 2016-05-19 JNTL Consumer Health (Brazil) Ltda. Method for making a fibrous article

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19813341A1 (de) * 1998-03-26 1999-09-30 Truetzschler Gmbh & Co Kg Vorrichtung an einer Krempel oder Karde zur Herstellung eines Faservlieses
DE10105843A1 (de) * 2001-01-16 2002-07-18 Fleissner Gerold Verfahren und Vorrichtung zum Transport eines Vlieses zwischen zwei mit Abstand voneinander angeordneten Walzen
ITTO20010039A1 (it) * 2001-01-19 2002-07-19 F O R Ing Graziano S P A Apparecchiatura per la produzione di tessuto non tessuto coesionato termicamente mediante calandratura.
US20030075579A1 (en) * 2001-07-31 2003-04-24 Bruce Dover Array of processing drums and method of processing carbon fibers
FR2830263B1 (fr) * 2001-10-03 2004-08-06 Thibeau Procede et installation pour la production d'un non-tisse condense, et dispositif de condensation d'un non-tisse
US7909282B2 (en) * 2002-02-28 2011-03-22 Kimberly-Clark Worldwide, Inc. Center/surface rewinder and winder
US8042761B2 (en) * 2002-02-28 2011-10-25 Kimberly-Clark Worldwide, Inc. Center/surface rewinder and winder
US8757533B2 (en) * 2002-02-28 2014-06-24 Kimberly-Clark Worldwide, Inc. Center/surface rewinder and winder
FR2840326B1 (fr) * 2002-05-28 2004-07-30 Asselin Chariot mobile d'entree d'etaleur-nappeur et etaleur-nappeur equipe dudit chariot
FR2840325B1 (fr) * 2002-05-28 2004-07-30 Asselin Rouleau aspirant pour le traitement d'un voile de fibres textiles ou produit equivalent
ITTO20020485A1 (it) * 2002-06-10 2003-12-10 F O R Ing Graziano S P A Carda per la preparazione di veli randomizzati per tessuti non tessuti.
DE10234803A1 (de) * 2002-07-31 2004-02-12 Erko Textilmaschinen Gmbh Vorrichtung zur Abnahme eines Faservlieses von einer Karde, mit einer Absaugwalze
FR2845698B1 (fr) * 2002-10-11 2005-03-18 Rieter Perfojet Procede et installation de production d'un non-tisse ayant de bonnes proprietes de resistance a la traction
DE50308225D1 (de) * 2003-07-29 2007-10-31 Spinnbau Gmbh Vlieskrempel und Verfahren zur Herstellung eines Faservlieses
ES2286577T3 (es) * 2004-04-22 2007-12-01 Asselin-Thibeau Maquina de cardar con un organo de transferencia rotativo aspirante.
ITTO20040115U1 (it) * 2004-09-24 2004-12-24 Fincarde S P A Sistema per il trasferimento di un velo di fibre proveniente da una carda.
US8535780B2 (en) 2009-10-06 2013-09-17 Kimberly-Clark Worldwide, Inc. Coreless tissue rolls and method of making the same
US8364290B2 (en) 2010-03-30 2013-01-29 Kimberly-Clark Worldwide, Inc. Asynchronous control of machine motion
US8714472B2 (en) 2010-03-30 2014-05-06 Kimberly-Clark Worldwide, Inc. Winder registration and inspection system
JP5400101B2 (ja) * 2011-07-27 2014-01-29 富士フイルム株式会社 媒体搬送装置及び画像形成装置
US9352921B2 (en) 2014-03-26 2016-05-31 Kimberly-Clark Worldwide, Inc. Method and apparatus for applying adhesive to a moving web being wound into a roll

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FR81287E (fr) * 1962-03-13 1963-08-23 Dollfus Mieg & Compagnie Procédé et installation pour la fabrication de fils, notamment de coton
DE1241319B (de) * 1961-03-14 1967-05-24 Dr Ernst Fehrer Vorrichtung zum Herstellen von Faservliesen oder Faserwattebahnen mit laengeren und sperrigen Fasern
EP0155656A2 (de) * 1984-03-22 1985-09-25 Spinnbau GmbH Vorrichtung zum Einleiten eines Flores in ein nachgeschaltetes Walzensystem
EP0282996A2 (de) * 1987-03-19 1988-09-21 Japan Cotton Technical And Economic Research Institute Mengyokaikan Vorrichtung zur Beseitigung von kurzen Fasern

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US1519985A (en) * 1921-05-19 1924-12-16 Fredrick D Simmons Transfer roll in paper-making machines
US3112054A (en) * 1961-02-07 1963-11-26 Fleissner G M B H Fa Apparatus for orienting textile bands
DE1510449A1 (de) * 1965-11-26 1971-03-18 Tessiltecnica Di M Mealli Abnahmevorrichtung fuer eine Textilfaserbahn,insbesondere gekrempelter,garnettierter oder wiederaufbereiteter Fasern
AU1189470A (en) * 1969-02-28 1971-09-02 Kimberly-Clark Corporation Method and apparatus for controlling and transferring cross-laid sheets
US3780960A (en) * 1971-10-06 1973-12-25 Rengo Co Ltd Web splicing apparatus
DE3710407A1 (de) * 1987-03-28 1988-10-13 Hollingsworth Gmbh Vorrichtung zum verfestigen eines textilvlieses u. dgl.
US5518490A (en) * 1994-08-19 1996-05-21 Paper Converting Machine Company Apparatus and method for the production of zipper-type closure bags

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1241319B (de) * 1961-03-14 1967-05-24 Dr Ernst Fehrer Vorrichtung zum Herstellen von Faservliesen oder Faserwattebahnen mit laengeren und sperrigen Fasern
FR81287E (fr) * 1962-03-13 1963-08-23 Dollfus Mieg & Compagnie Procédé et installation pour la fabrication de fils, notamment de coton
EP0155656A2 (de) * 1984-03-22 1985-09-25 Spinnbau GmbH Vorrichtung zum Einleiten eines Flores in ein nachgeschaltetes Walzensystem
EP0282996A2 (de) * 1987-03-19 1988-09-21 Japan Cotton Technical And Economic Research Institute Mengyokaikan Vorrichtung zur Beseitigung von kurzen Fasern

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0837163A1 (de) * 1996-10-11 1998-04-22 Oskar Dilo Maschinenfabrik KG Anlage und Verfahren für die Vliesherstellung aus Fasermaterial
EP0899370A2 (de) * 1997-08-28 1999-03-03 Spinnbau GmbH Vlieskalander
EP0899370A3 (de) * 1997-08-28 1999-09-08 Spinnbau GmbH Vlieskalander
WO2000056960A1 (fr) * 1999-03-23 2000-09-28 Asselin Etaleur-nappeur
FR2791364A1 (fr) * 1999-03-23 2000-09-29 Asselin Etaleur-nappeur
US6550107B1 (en) 1999-03-23 2003-04-22 Asselin Distributor layer
EP2085504A1 (de) 2008-02-04 2009-08-05 ALBIS Spa Saugvorrichtung zum Überführen einer Vliesstoffbahn
EP2417952A1 (de) * 2010-08-12 2012-02-15 Johnson & Johnson do Brasil Industria e Comercio de Produtos Para Saude Ltda. Verfahren und Vorrichtung zur Herstellung eines faserigen Artikels
EP2417951A1 (de) * 2010-08-12 2012-02-15 Johnson & Johnson do Brasil Industria e Comercio de Produtos Para Saude Ltda. Verfahren und Vorrichtung zur Herstellung eines faserigen Artikels mit dreidimensionalem Profil und aufnahmefähiger Artikel mit dem geformten faserigen Artikel
AU2011211354B2 (en) * 2010-08-12 2015-11-05 JNTL Consumer Health (Brazil) Ltda. Apparatus for making a fibrous article
AU2011211389B2 (en) * 2010-08-12 2016-03-17 JNTL Consumer Health (Brazil) Ltda. Method for making a fibrous article
AU2011211422B2 (en) * 2010-08-12 2016-03-17 JNTL Consumer Health (Brazil) Ltda. Apparatus for making a fibrous article having a three dimensional profile
AU2011211440B2 (en) * 2010-08-12 2016-05-19 JNTL Consumer Health (Brazil) Ltda. Method for making a fibrous article

Also Published As

Publication number Publication date
US6050469A (en) 2000-04-18
FR2732042B1 (fr) 1997-06-13
DE69600129T2 (de) 1998-06-04
DE69600129D1 (de) 1998-02-05
DE733729T1 (de) 1997-06-05
EP0733729B1 (de) 1997-12-29
JPH08260375A (ja) 1996-10-08
ATE161591T1 (de) 1998-01-15
FR2732042A1 (fr) 1996-09-27
DK0733729T3 (da) 1998-01-19

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