EP1589132A1 - Karde mit einer drehbaren Absaugübertragungsvorrichtung - Google Patents

Karde mit einer drehbaren Absaugübertragungsvorrichtung Download PDF

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Publication number
EP1589132A1
EP1589132A1 EP04370011A EP04370011A EP1589132A1 EP 1589132 A1 EP1589132 A1 EP 1589132A1 EP 04370011 A EP04370011 A EP 04370011A EP 04370011 A EP04370011 A EP 04370011A EP 1589132 A1 EP1589132 A1 EP 1589132A1
Authority
EP
European Patent Office
Prior art keywords
cylinder
detaching
fiber web
card
condenser
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
EP04370011A
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English (en)
French (fr)
Other versions
EP1589132B1 (de
Inventor
Jean-Lois Dupont
Gauthier Berteloot
Marc Brabant
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.)
Asselin Thibeau SAS
Original Assignee
Thibeau 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 filed Critical Thibeau SA
Priority to ES04370011T priority Critical patent/ES2286577T3/es
Priority to EP20040370011 priority patent/EP1589132B1/de
Priority to DE602004006962T priority patent/DE602004006962T2/de
Priority to CN 200510065693 priority patent/CN1690265B/zh
Publication of EP1589132A1 publication Critical patent/EP1589132A1/de
Application granted granted Critical
Publication of EP1589132B1 publication Critical patent/EP1589132B1/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
    • 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

Definitions

  • the present invention relates to the production of nonwovens by means of a card of the type comprising at least one detaching cylinder ensuring the recovery of a fiber web at the exit of the card with a point of turn back up.
  • Her main objects are a new card whose output has been perfected so as to improve the quality of the veil of fibers produced.
  • the invention preferably, but not exclusively, its application to high-speed production of nonwovens composed of synthetic fibers of the polypropylene, polyethylene, ... fiber type natural cotton type, ..., or viscose-type artificial fibers, ...
  • a first known card output configuration allowing the production of a parallel fiber web, implements in, for cylinders for forming the fiber web, one or more rollers successive.
  • a second known card output configuration allowing the production of a scrambled fiber veil, uses, as cylinders formation of the fiber web, a cylinder commonly referred to as "counter-drum Followed by a doffer cylinder.
  • a third known card output configuration allowing the production of a condensed fiber web, uses, as a cylinders forming the fiber veil, a doffer cylinder, followed by less a condenser cylinder.
  • a fourth known card output configuration implements, as cylinders forming the fiber web, a counter-drum cylinder followed by a doffer cylinder and a condenser cylinder.
  • the fiber web produced by the card is then to be consolidated by any appropriate means (calendering, needling, ...) in order to forming a consolidated nonwoven having a greater mechanical strength. More particularly, in the case of forming multi-layer nonwovens, this fiber veil is superimposed before consolidation with one or more fiber sails which may, depending on the case, be produced in parallel with the means of the same card (frame with several outputs) or cards different. Also in the case of the formation of nonwovens composites, this fiber web can be superimposed with one or more other layers of fibers obtained by different techniques ( fiber type "melt-blown," spun ", ...)
  • the term "detacher” is used to designate a Cylinder whose peripheral seal is neutral (ie, unoriented) in contrast with the oriented lining of the sail forming cylinders (condenser, doffer, counter-drum). Most of the time, this is a cylinder having an isosceles tip seal. It can also be of a cylinder having longitudinal grooves all over its periphery, a smooth cylinder, or a perforated cylinder with a fixed suction sector such as for example that described in the patent French No. 1,500,746.
  • the detaching cylinder [EP 0704561: cylinder (4) or (22) / EP 1300492: cylinder (15a) or (15b) / EP 1318217: cylinder (31)] takes up the fiber web at the periphery of the last sail formation cylinder of the card with a cusp down, the veil of fibers thus being taken up in the lower part by the detacher cylinder. It is the same with regard to the solution of the FIG. 1 of the European patent application EP 1046731 [release cylinder (4)].
  • the detaching cylinder [EP 1046731: FIG. - cylinder (4) or (4a)] takes up the veil of fibers at the periphery of the last sail formation cylinder of the card with a cusp upwards, the veil of fibers being thus taken up in the upper part by the cylinder spotter.
  • Carding configuration for the formation of a fiber web condensed illustrated in Figure 2 of the European patent application EP 1046731 has the advantage of implementing a single cylinder condenser [cylinder (22) or (24)] at the end of the card, and is therefore more advantageous for example that the card configuration of the request for European patent EP 1 300492 which implements two cylinders successive condensers [figure 1 - successive condenser cylinders (12a) / 13 (a) or condenser cylinders (12b) / 13b)].
  • the present invention aims to improve the quality of a fiber web produced by means of a card, and taken out of the card by a cylinder detacher with a cusp up, and more particularly aims to reduce the risk of bubble formation in such a sail.
  • the invention which has for its first object a card for the formation of at least one veil of fibers, which is of the type of of FIG. 2 of the European patent application EP 1 046 731 in that it comprises on the one hand a detaching cylinder whose function is to collect on its periphery and with a cusp up, the veil of fibers previously formed, and on the other hand a conveying surface of the veil of fibers, positioned downstream of the detaching cylinder.
  • a transfer member rotating rotor with the function of transferring the fiber webs between the detaching cylinder and the transport surface while maintaining by suction the fiber veil.
  • the suction of the transfer member is adjusted so as to reduce, and preferably so as to avoid the formation of bubbles in the fiber web.
  • Another object of the invention is a training method a carded fiber web.
  • This process is known, in particular by FIG. of the European Patent Application EP 1046731, in that a veil is formed fibers by means of one or more successive cylinders of a card, detach this fiber web from the periphery of the last formation cylinder of sail by means of a detaching cylinder and with a point of curl upward, and the fiber web is deposited on a surface transport.
  • the veil of fibers between the detaching cylinder and the transport surface by keeping it by suction against the surface of a rotary transfer member.
  • the detaching cylinder is rotated with a circumferential speed of at least 130 m / min and more preferably still greater than or equal to 150 m / min.
  • FIG. 1 shows a first variant embodiment of a card which conforms to the invention and which, in the particular example illustrated, has two upper and lower outputs for production in parallel of two fibrous webs V1 and V2.
  • the card could only have one exit.
  • This card features usual way a main carding drum 1 (commonly called “big drum") which allows the parallelization of fibers in cooperating in a manner known per se with carding members mounted to the periphery of the carding drum.
  • main carding drum 1 commonly called “big drum”
  • European patent EP 1318217 of the applicant For a complete description of these elements (carding members and card elements upstream of the drum of carding 1), reference should be made to the description of the application for European patent EP 1318217 of the applicant.
  • the two outputs lower and upper of the card are identical, the two fibrous webs V1 and V2 products being similar.
  • the two outputs could present different configurations.
  • Each output of the card of Figure 1 comprises successively from the carding drum 1: a doffer cylinder 2, a cylinder condenser 3, a detacher cylinder 4 with isosceles tips 4a, a cylinder of suction transfer 5, and a conveyor belt 6.
  • the comb cylinder 2 and the condenser cylinder 3 constitute the cylinders for forming the fibrous web (V1 or V2).
  • these cylinders make it possible to form a condensed fibrous web (V1 or V2), presenting a better isotropy of its mechanical properties, comparatively for example to a parallel veil.
  • the cylinders Comber 2 and condenser 3 comprise, in a known manner, a filling oriented device 2a, 3a whose teeth are inclined in the direction contrary to the rotation of these cylinders; the condenser cylinder 3 is driven rotation in the opposite direction of the doffer cylinder 2, and with a circumferential speed significantly lower than that of the doffer cylinder 2.
  • the detaching cylinder 4 is driven by rotation in the same direction as the condenser cylinder 3 and with a circumferential speed at least equal to and preferably greater than of the condenser cylinder 3, and draws the condensed web (V1 or V2) from the periphery of the condenser cylinder 3. More precisely, the fibrous veil arrives in the sampling zone from above the condenser cylinder 3, and is picked up by the detaching cylinder 4 with a cusp P to the high ; in other words, the detaching cylinder 4, which is rotated in the same direction as the last sail forming cylinder (i.e. condenser cylinder 3 in the example of FIG. 1) takes up the fibrous veil on its periphery to route it up.
  • the fibrous web is conveyed to the periphery of the detaching cylinder 4 to the suction transfer cylinder 5.
  • the suction transfer cylinder has a cylindrical envelope 5a which is perforated over its entire surface and which is rotatable, and a chamber fixed suction defined by two fixed inner walls 5c.
  • This room 5b suction extends over the entire length of the cylindrical casing 5a and on a limited sector of this envelope (suction sector AB).
  • This chamber 5b is connected to a fan or equivalent allowing depressurize the suction chamber 5b, and thereby create through the cylindrical shell 5a and the suction sector AB, a sufficient suction to press the fibrous web to the surface of the cylinder of transfer 5.
  • the perforated cylindrical casing 5a of the cylinder of transfer 5 is rotated, for example by means of an engine individual, in the opposite direction of the detaching cylinder 4.
  • the speed circumferential circumference of the cylindrical envelope 5a of the transfer cylinder 5 can as the case may be equal to or greater than the circumferential speed of the detaching cylinder 4, or being less than the circumferential speed of the detachment cylinder 4.
  • the fibrous veil is removed, without cusp, from the periphery of the detaching cylinder by the cylinder of transfer 5, and is conveyed by the suction transfer cylinder 5 to the surface of the conveyor belt 6. Between the detacher cylinder 4 and the belt transport 6, the fibrous web is constantly maintained by suction against the cylindrical casing 5a of the transfer cylinder 5.
  • the veil fibrous material Downstream of the suction section (AB) of the transfer cylinder 5, the veil fibrous material is deposited on the surface of the conveyor belt 6.
  • the conveyor belt is permeable to the air, and to help the recovery of the fibrous veil by the transport 6, the fibrous web is aspirated locally through the web of transport 6, and over the entire width of this band, by means of a box 7.
  • the man of the trade will refer to the description of the European patent application EP 0 704 561 from the applicant.
  • the fibrous veil is thus plated by suction against the conveyor belt 6.
  • the conveyor belt 6 is driven at a linear speed which, depending on the case, may be greater or equal to the circumferential speed of the transfer cylinder 5, or on the contrary less than the circumferential speed of the transfer cylinder 5 (condensation of the veil during its transfer on the conveyor belt 6).
  • Table I below corresponds to a nonlimiting example of operation of the card just described, for the parallel production of two substantially identical condensed fiber webs V1 and V2 formed from a fiber mixture.
  • polypropylene and viscose fibers of average length of the order of 38mm.
  • organs Large drum (1) Pewear Cylinder (2) Condenser Cylinder (3) Cylinder Detacher (4) Transfer Cylinder (5) Transport band (6) Weight of the veil (gr / m 2 ) / 8.5 15.6 / 1 / Circumferential (or linear) speed (m / min) 1000-1560 220 120 130-200 130-200 150-200
  • the cylindrical envelope 5a of the transfer cylinder 5 was perforated a multitude of identical holes regularly distributed throughout the the surface of the envelope, and with a perforation rate (ie the ratio between the total area of the perforations and the total area of the envelope cylindrical) of between 25% and 35%.
  • a perforation rate ie the ratio between the total area of the perforations and the total area of the envelope cylindrical
  • the air speeds through the perforations of the cylindrical envelope 5a were included between 0.5m / s and 3m / s.
  • the invention is not limited to these parameters particular of the aspiration which are given only as an indication. he particularly those skilled in the art to adapt on a case-by-case basis parameters, and in particular to adjust the power of the suction of such so that it is sufficient for the veil of fibers to be transferred without bubble formation in the veil.
  • a suction on the transfer cylinder 5 is capable of producing, especially at high speed (typically greater than 150 m / min) a quality fibrous web, free of bubbles.
  • the aspiration to transfer cylinder level would physically maintain in place the fibers of the veil during its transfer to the strip of transport, and incidentally reduce the phenomenon of loosening of fibers sufficiently to prevent the formation of bubbles.
  • the plaintiff however, is not bound by this explanation.
  • FIG. 3 shows another variant embodiment of a card according to the invention, which differs from the variant of FIG. by the implementation on each output only of a doffer cylinder 2, the condenser cylinders having been removed.
  • the detaching cylinder 4 takes directly the fibrous veil at the periphery of the doffer cylinder 2, with a cusp P upwards. This card allows output two parallel fiber veils.
  • the variant of Figure 4 is similar to that of Figure 1 (on this Figure 4 the carding drum 1 has not been shown), and differs from it by optimizing the position of the suction transfer cylinder 5 by relative to the detaching cylinder 4.
  • aspirant of the variant of Figure 4 is closer to the last cylinder of formation of the veil (condenser cylinder 3), and the course of the veil between the last veil forming cylinder (condenser cylinder 3) and the transport 6 is shorter (especially at the periphery of the stripper cylinder 4), which further reduces the risk of loosening fibers.
  • the detaching cylinder 4 is advantageously a suction cylinder so that the fiber web in output of the doffer cylinder is constantly maintained by suction at the periphery of the detacher cylinder 4, up to the area of recovery by the cylinder suction transfer 5. This avoids the risk of loosening fibers from the web to the periphery of the detaching cylinder 4.
  • the card has three outputs of Identical sail formation (doffer cylinder 2 / condenser cylinder 3 / cylinder detacher 4) and a single rotary 5 'suction transfer member common to the three cylinders detacher 4.
  • This sucking transfer member 5 ' has a transport belt 5'a inclined and permeable to air, and a aspiration through and over the entire width of said strip is implemented by means of suction boxes 5'b.
  • This aspiration is implemented on the entire area of the conveyor belt that extends from the cylinder detacher 4 up to the area of recovery by the conveyor belt 6.
  • the three fiber webs V1, V2, V3 are superimposed on the surface of the suction belt 5'a, being constantly maintained by suction on the surface of this band 5'a, then are deposited on the strip of transport 6.
  • FIG. 7 differs from that of FIG. the orientation of the conveyor belt 6, and by the implementation of a suction cylinder 8, which is positioned in the junction zone between transport belts 5'a and 6, which is used to transfer the sails superimposed V1, V2 and V3 between the conveyor belt 5'a and the strip of transport 6.
  • the conveyor belt 6 could be provided for two-way operation, and allow the transport of the fiber web or sails to two different consolidation according to the training direction of the band of transport.
  • the invention is not limited to particular embodiments have been described with reference to the appended figures.
  • the invention may apply to any card output configuration in which the detaching cylinder takes from the periphery the veil of fibers previously formed, with a cusp (P) upward.
  • the cylinders of formation of sail arranged upstream of the detacher cylinder are not limited to the types of cylinders of the appended figures (that is to say, doffer, condenser or transfer).
  • the invention can also be applied to a card having a counter-drum cylinder as a formation cylinder sailing.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
EP20040370011 2004-04-22 2004-04-22 Karde mit einer drehbaren Absaugübertragungsvorrichtung Expired - Lifetime EP1589132B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
ES04370011T ES2286577T3 (es) 2004-04-22 2004-04-22 Maquina de cardar con un organo de transferencia rotativo aspirante.
EP20040370011 EP1589132B1 (de) 2004-04-22 2004-04-22 Karde mit einer drehbaren Absaugübertragungsvorrichtung
DE602004006962T DE602004006962T2 (de) 2004-04-22 2004-04-22 Karde mit einer drehbaren Absaugübertragungsvorrichtung
CN 200510065693 CN1690265B (zh) 2004-04-22 2005-04-21 使用一个旋转吸引传送机构以减少形成气泡的危险的形成一种纤维网的梳理机和方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20040370011 EP1589132B1 (de) 2004-04-22 2004-04-22 Karde mit einer drehbaren Absaugübertragungsvorrichtung

Publications (2)

Publication Number Publication Date
EP1589132A1 true EP1589132A1 (de) 2005-10-26
EP1589132B1 EP1589132B1 (de) 2007-06-13

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EP20040370011 Expired - Lifetime EP1589132B1 (de) 2004-04-22 2004-04-22 Karde mit einer drehbaren Absaugübertragungsvorrichtung

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EP (1) EP1589132B1 (de)
CN (1) CN1690265B (de)
DE (1) DE602004006962T2 (de)
ES (1) ES2286577T3 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105200570A (zh) * 2015-11-04 2015-12-30 河北宇腾羊绒制品有限公司 一种羊绒分梳装置
EP3575455A1 (de) * 2018-05-31 2019-12-04 Andritz Asselin-Thibeau System zur bildung eines vlieses
WO2020144084A1 (fr) 2019-01-08 2020-07-16 Andritz Perfojet Sas Installation et procede de production de non-tisses

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2957092B1 (fr) * 2010-03-08 2012-03-23 Asselin Thibeau Chariot mobile d'entree d'etaleur nappeur comportant un rouleau de detour avec cannelures ou annelures
DE102015102810A1 (de) * 2015-02-27 2016-09-01 TRüTZSCHLER GMBH & CO. KG Krempelanlage und Verfahren zur Verfestigung mindestens eines Faserflors
CN105063892B (zh) * 2015-08-04 2017-12-19 佛山市格菲林卫材科技有限公司 具有双向导流功能的热风无纺布面料的生产装置
CN107059246A (zh) * 2017-02-21 2017-08-18 昆山盛纺非织造材料研发中心有限公司 热风非织造布梳理机及双梳理系统
DE102017118111A1 (de) * 2017-08-09 2019-02-14 TRüTZSCHLER GMBH & CO. KG Karde
DE102019104851A1 (de) * 2019-02-26 2020-08-27 Adler Pelzer Holding Gmbh Vorrichtung zur Herstellung von Nadelvliesen

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0704561A1 (de) * 1994-09-30 1996-04-03 A. Thibeau Et Cie (S.A.) Vorrichtung zur Abnahme und zum Transportieren mit hoher Geschwindigkeit eines Faservlieses am Ende einer Karde
US6050469A (en) * 1995-03-22 2000-04-18 Thibeau Et Cie Suction cylinder which transfers fiber web from a conveyer belt to two calendering cylinders
EP1046731A1 (de) * 1999-04-20 2000-10-25 F.O.R. ING. GRAZIANO S.p.A. Kardiervorrichtung, insbesondere zur Vorbereitung von Vliesen für Faserverbundmaterialien
EP1300492A1 (de) * 2001-10-03 2003-04-09 Thibeau Verfahren und Anlage zur Herstellung eines verdichteten Vliesstoffes und Vorrichtung zur Verdichtung eines Vliesstoffes
EP1386986A1 (de) * 2002-07-31 2004-02-04 Erko Textilmaschinen GmbH Vorrichtung zur Abnahme eines Faservlieses von einer Karde, mit einer Absaugwalze

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0704561A1 (de) * 1994-09-30 1996-04-03 A. Thibeau Et Cie (S.A.) Vorrichtung zur Abnahme und zum Transportieren mit hoher Geschwindigkeit eines Faservlieses am Ende einer Karde
US6050469A (en) * 1995-03-22 2000-04-18 Thibeau Et Cie Suction cylinder which transfers fiber web from a conveyer belt to two calendering cylinders
EP1046731A1 (de) * 1999-04-20 2000-10-25 F.O.R. ING. GRAZIANO S.p.A. Kardiervorrichtung, insbesondere zur Vorbereitung von Vliesen für Faserverbundmaterialien
EP1300492A1 (de) * 2001-10-03 2003-04-09 Thibeau Verfahren und Anlage zur Herstellung eines verdichteten Vliesstoffes und Vorrichtung zur Verdichtung eines Vliesstoffes
EP1386986A1 (de) * 2002-07-31 2004-02-04 Erko Textilmaschinen GmbH Vorrichtung zur Abnahme eines Faservlieses von einer Karde, mit einer Absaugwalze

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105200570A (zh) * 2015-11-04 2015-12-30 河北宇腾羊绒制品有限公司 一种羊绒分梳装置
EP3575455A1 (de) * 2018-05-31 2019-12-04 Andritz Asselin-Thibeau System zur bildung eines vlieses
FR3081885A1 (fr) * 2018-05-31 2019-12-06 Andritz Asselin-Thibeau Systeme de formation d’une nappe de fibres
EP3575455B1 (de) 2018-05-31 2022-10-05 Andritz Asselin-Thibeau System zur bildung eines vlieses
TWI825101B (zh) * 2018-05-31 2023-12-11 法商安德里茲阿斯蘭帝博公司 用於形成纖維絮墊之設備
US12006603B2 (en) 2018-05-31 2024-06-11 Andritz Asselin-Thibeau System for forming a fibre batt
WO2020144084A1 (fr) 2019-01-08 2020-07-16 Andritz Perfojet Sas Installation et procede de production de non-tisses
US20220056624A1 (en) * 2019-01-08 2022-02-24 Andritz Perfojet Sas Apparatus and method for producing nonwovens
US11987916B2 (en) * 2019-01-08 2024-05-21 Andritz Perfojet Sas Apparatus and method for producing nonwovens

Also Published As

Publication number Publication date
DE602004006962T2 (de) 2008-02-07
CN1690265B (zh) 2011-04-13
DE602004006962D1 (de) 2007-07-26
ES2286577T3 (es) 2007-12-01
CN1690265A (zh) 2005-11-02
EP1589132B1 (de) 2007-06-13

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