EP0071033B1 - Dépôt d'un voile de fibres - Google Patents

Dépôt d'un voile de fibres Download PDF

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Publication number
EP0071033B1
EP0071033B1 EP82105836A EP82105836A EP0071033B1 EP 0071033 B1 EP0071033 B1 EP 0071033B1 EP 82105836 A EP82105836 A EP 82105836A EP 82105836 A EP82105836 A EP 82105836A EP 0071033 B1 EP0071033 B1 EP 0071033B1
Authority
EP
European Patent Office
Prior art keywords
fleece
delivery
belts
web
layering apparatus
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.)
Expired
Application number
EP82105836A
Other languages
German (de)
English (en)
Other versions
EP0071033A1 (fr
Inventor
Johann P. Dipl.-Ing. Dilo
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.)
Oskar Dilo Maschinenfabrik KG
Original Assignee
Oskar Dilo Maschinenfabrik KG
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 Oskar Dilo Maschinenfabrik KG filed Critical Oskar Dilo Maschinenfabrik KG
Priority to AT82105836T priority Critical patent/ATE11577T1/de
Publication of EP0071033A1 publication Critical patent/EP0071033A1/fr
Application granted granted Critical
Publication of EP0071033B1 publication Critical patent/EP0071033B1/fr
Expired 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
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/74—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being orientated, e.g. in parallel (anisotropic fleeces)

Definitions

  • the invention relates to a pile layer for forming a nonwoven fabric consisting of a plurality of pile layers, with the pile web consisting of textile fibers supplied, on a movable base or on the already laid pile web, which is laid in a zigzag shape and on which lies between two end positions Movable slides arranged conveying means and the continuously fed card web supporting and meanwhile storing and transporting conveyor belts.
  • Pile layers of this type have a number of disadvantages.
  • the masses moved back and forth are relatively large, which limits the performance, and on the other hand, a fiber bulge forms at the edges of the nonwoven, since the card web is fed at a constant speed during the reciprocating movement of the carriage while the sled has a momentary standstill there and a deceleration and acceleration phase in front of and behind it.
  • the transfer of the card web from one conveyor belt to the other is stretched and compressed, which leads to an inhomogeneity of the card web.
  • the second type of pile layer is the flat layer, which has a lower overall height.
  • a disadvantage of these pile layers is the relatively large mass that can be moved back and forth. They have the advantage over steep-arm layers that the pile elongation and compression is less than with the former, but the formation of marginal ridges is not eliminated with them.
  • the card web is continuously guided from the entry point to the delivery point between two conveyor belts lying parallel to one another, thereby protecting the pile, which is sensitive to air turbulence, which enables high delivery speeds.
  • the pile delivery speed is controlled in such a way that it becomes zero at the turning points of the carriage in order to avoid the thickening in the area of the fleece edges.
  • these flat layers have the extremely serious disadvantage that they are mechanically very complex and that large masses have to be moved back and forth. This is particularly evident from the fact that the conveyor belts guiding the card web generally have a width of 2.5 m. In operation, it can be disadvantageous that air is torn between the belts, in particular at high speeds, which form air cushions which impair the cohesion of the pile and cause malfunctions.
  • the invention has for its object to propose a novel pile layer in a flat construction, which avoids the aforementioned disadvantages of the known pile layers and which allows a very high working speed with better quality of the nonwoven fabric produced.
  • the supplied card web is moved by means of air-permeable conveying means, against the surface of which the card web is pressed by means of an adjustable and controllable air flow.
  • This measure ensures that practically half of the funds previously required for guiding and supporting the card web can be dispensed with.
  • this method treats the cardboard web more gently while it is led through the machine to the depositing point and practically does not change its homogeneity.
  • the air flow pressing the card web against the surface of the conveying means is advantageously generated by means of a vacuum located on the rear side of the conveying means.
  • two air-permeable conveyor belts arranged at a distance one above the other are in a stationary rest position, that is to say that they do not carry out any translational back and forth movement.
  • the transfer of the card web from the first upper conveyor belt to the second conveyor belt below it follows by means of a pile transfer roller which is moved back and forth between two end positions between the two conveyor belts;
  • the card web is removed from the lower conveyor belt by means of a reciprocating pile removal and depositing device and laid in the usual way.
  • the translationally reciprocable masses only consist of the pile transfer roller which is reciprocated between the two conveyor belts and the reciprocating pile removal and depositing device.
  • the laying device 11 of the pile layer consists of two horizontal, parallel and spaced-apart endless conveyor belts 12 and 13, which are permeable to air and guided over the deflection rollers 14, 15 and 16, 17, respectively.
  • the conveyor belts 12 and 13 can be of a wide variety of structures. They can consist of a mesh, a perforated plate, a wire rack or any other suitable material.
  • a further conveyor belt 18 is arranged below the feed end of the upper conveyor belt 12, with which the card web 19 to be laid is continuously fed to the lower run 20 of the upper conveyor belt 12.
  • a pile transfer roller 24 is provided between them, which advantageously also has an air-permeable jacket 25, behind which there is at least a portion circumferential vacuum chamber 26 carried by the axis of the roller 24.
  • the pile transfer roller 24 can be moved back and forth between two end positions A and B.
  • the card web 19 resting on the upper run 23 is guided to the underside, from where it is removed from the lower run 28 of the lower conveyor belt 13 by means of the pile removal and depositing device 27 and while of the back and forth of the carriage of the pile removal and depositing device 27 is placed on the already formed layers of the nonwoven fabric 29, which lies on a conveyor belt 30, which is moved transversely or lengthwise to the laying device 11.
  • the vacuum in the vacuum chambers can be regulated and controlled in order to obtain a correspondingly desired air flow.
  • the air flow in this area must either be reduced or interrupted, which is done either by reducing or releasing the vacuum, or by covering the openings of the vacuum chambers, for example by means of a cover plate 31 or 32, which is moved with the associated movable elements between the conveyor belt 12 or 13 and the vacuum chambers 21 or 22.
  • both the upper and lower conveyor belts 12, 13 are each kinematically coupled to the pile transfer roller, which is expediently carried out by means of toothed belts, roller chains or the like which rotate synchronously with the conveyor belts and a gearwheel which engages with them and is coupled to the pile transfer roller. as is also the case with respect to the drive mechanism of the pile removal and deposit device 27 shown in FIG.
  • Fig. 2 which shows a plan view of the underside of the pile picking and depositing device 27, the drive mechanism is apparent.
  • the pile removal and depositing device 27, which can be moved back and forth under the lower run 28 of the lower conveyor belt 13, consists of a slide 27a running on rails, on which the two rollers 33 and 34 are rotatably mounted;
  • the rollers 33 and 34 are coupled to one another and rotate in opposite directions to one another via gears 33b, 34b which are seated on their shafts 33a, 34a and are in engagement with one another.
  • the two toothed belts 33d and 34d can be driven via a manual transmission.
  • the mode of operation of the pile layer designed according to the invention is as follows: the pile transfer roller 24 is in position B and the lower conveyor belt 13 is stationary.
  • the card web 19 is fed by means of the feed conveyor belt 18 to the lower run 20 of the upper conveyor belt 12 moving at a constant speed.
  • the pile moves during this card web feed Transfer roller 24 to the left until the end position A.
  • the lower conveyor belt 13 is set in motion.
  • the pile transfer roller 34 transfers the card web 19 to the upper run 23 of the lower conveyor belt 12, which brings the card web to the underside of the lower run 28.
  • the Waize33 takes the card web 19 from the lower run 28 of the lower conveyor belt 13, which is deposited by the second roller 34 onto the upper layer of the nonwoven fabric 29 .
  • the lower conveyor belt 13 is at a standstill.
  • the movement of the removal and depositing device 27 is reversed so that it then moves against the left end position.
  • the lower conveyor belt 13 then runs, from which the card web 19 is removed by the roller 33 and deposited to form a further layer.
  • the card web layer deposited by the removal and depositing device 27 is expediently pressed against the nonwoven fabric 29 by means of the pressure rollers 35, 36.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Manufacturing Of Multi-Layer Textile Fabrics (AREA)
  • Nonwoven Fabrics (AREA)
  • Laminated Bodies (AREA)

Claims (10)

1. Déposeur de voile pour former un non-tissé constitué de plusieurs plis, avec les moyens de transfert placés sur un chariot se déplaçant alternativement entre deux positions limites déposant le voile introduit constitué de fibres textiles sur un support mobile ou sur le voile déjà déposé en zigzag sur le support, ainsi qu'avec les bandes transporteuses supportant, stockant entre-temps et transportant le voile alimenté en continu, caractérisé en ce que, le voile introduit (19) est transporté grâce à des moyens de transfert (12, 13, 17, 24, 33, 34) perméables à l'air, contre la surface desquels le voile (19) est appliqué au moyen d'un courant d'air modifiable et réglable.
2. Déposeur de voile selon la revendication 1, caractérisé en ce que le courant d'air est créé au moyen d'un vide appliqué sur la face dorsale des moyens de transfert (12, 13, 24, 33, 34) dans des zones prédéterminées.
3. Déposeur de voile selon la revendication 2, caractérisé en ce que sur la face dorsale des moyens de transfert perméables à l'air (12,13,17, 24, 33, 34) une pluralité de caisses à vide (21, 22, 26) sont disposées contre les moyens de transfert totalement ou partiellement ouvertes, dans lesquelles règne un vide réglable.
4. Déposeur de voile selon l'une des revendications 1 à 3, caractérisé par une bande transporteuse (12) sans fin supérieure, à poste fixe et perméable à l'air et, située en dessous avec un écart, parallèlement à la première, une bande transporteuse (13) sans fin à poste fixe et perméable à l'air, les deux bandes étant entraînées au moyen de deux cylindres de renvoi (14, 15 ; 16, 17) et entre lesquelles est disposé un cylindre de transfert de voile (24) de préférence perméable à l'air, qui se déplace entre deux positions limites alternativement ; et un dispositif de réception et de dépôt (27) placé en dessous de la bande transporteuse inférieure (13).
5. Déposeur de voile selon l'une des revendications 1 à 4, caractérisé en ce que le voile (19) est décollé de sa face de repos sur la table inférieure (20, 28) de la bande transporteuse (12, 13) par suppression du vide dans la zone d'action du cylindre de transfert de voile (24) et du dispositif de réception de voile (27).
6. Déposeur de voile selon l'une des revendications 1 à 5, caractérisé en ce que le voile introduit à vitesse constante par la table inférieure (20) de la bande transporteuse supérieure (12) est toujours entraîné dans la même direction à vitesse constante.
7. Déposeur de voile selon l'une des revendications 1 à 6, caractérisé en ce que la bande transporteuse inférieure (13) peut être entraînée périodiquement en sens inverse de la bande supérieure (12).
8. Déposeur de voile selon les revendications 6 et 7, caractérisé en ce que la bande transporteuse supérieure, comme l'inférieure (12, 13) sont couplées cinématiquement avec le cylindre de transfert de voile (24).
9. Déposeur de voile selon la revendication 8, caractérisé en ce que l'accouplement des bandes transporteuses (12, 13) avec le cylindre de transfert de voile (24) se fait au moyen de courroies crantées, de chaînes à rouleaux ou analogues qui défilent en synchronisme avec les bandes transporteuses et d'un engrenage couplé au cylindre de transfert qui est en prise avec ces courroies.
10. Déposeur de voile selon la revendication 8, caractérisé en ce que le dispositif de réception et de dépôt (27) est constitué de deux cylindres (33, 34) parallèles, couplés au moyen d'engrenages (33b, 34b) logés sur un chariot (27a) animé d'un mouvement de va-et-vient en dessous de la bande transporteuse inférieure, ces cylindres sont mis en mouvement par l'intermédiaire des engrenages qui leur sont solidaires (33c, 34c) et des courroies crantées (33d, 34d) ou des chaînes qui sont en prise avec chacun d'entre eux et sont mises en mouvement chacune alternativement.
EP82105836A 1981-07-01 1982-06-30 Dépôt d'un voile de fibres Expired EP0071033B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82105836T ATE11577T1 (de) 1981-07-01 1982-06-30 Florleger.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813125946 DE3125946A1 (de) 1981-07-01 1981-07-01 "florleger"
DE3125946 1981-07-01

Publications (2)

Publication Number Publication Date
EP0071033A1 EP0071033A1 (fr) 1983-02-09
EP0071033B1 true EP0071033B1 (fr) 1985-01-30

Family

ID=6135859

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82105836A Expired EP0071033B1 (fr) 1981-07-01 1982-06-30 Dépôt d'un voile de fibres

Country Status (5)

Country Link
US (1) US4481694A (fr)
EP (1) EP0071033B1 (fr)
JP (1) JPS5836254A (fr)
AT (1) ATE11577T1 (fr)
DE (2) DE3125946A1 (fr)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2553102B1 (fr) * 1983-10-07 1986-01-31 Asselin Ets Etaleur-nappeur
IT1184011B (it) * 1985-12-11 1987-10-22 Fonderie Officine Riunite Ing Dispositivo per la produzione di veli sovrapposti di tessuto non tessuto con fibre disposte longitudinalmente particolarmante per l alimentazione di una trapuntatrice ad aghi
DE3644535A1 (de) * 1986-12-24 1988-07-14 Truetzschler & Co Verfahren und vorrichtung zum erkennen von fremdkoerpern wie fremdfasern, bindfaeden, kunststoffbaendchen, draehten o. dgl. innerhalb von bzw. zwischen textilfaserflocken
BE1002605A3 (fr) * 1988-11-30 1991-04-09 Houget Duesberg Bosson Procede et dispositif pour la fabrication de textiles non-tisses.
US4984772A (en) * 1989-05-15 1991-01-15 E. I. Du Pont De Nemours And Company High speed crosslapper
DE4010174A1 (de) * 1990-03-30 1991-10-02 Hollingsworth Gmbh Verfahren zum ablegen eines vlieses oder dgl., sowie vliesbandleger
IT1241874B (it) * 1990-07-18 1994-02-01 Veneto Feltrificio Spa Metodo ed impianto per la fabbricazione di falde per feltri.
DE4444206A1 (de) * 1994-12-13 1996-06-20 Fleissner Maschf Gmbh Co Verfahren und Vorrichtung zum Veredeln von Krempelvliesen
DE19618806A1 (de) * 1995-05-26 1996-11-28 Fehrer Ernst Verfahren und Vorrichtung zum Täfeln eines Vliesbandes
AT402948B (de) * 1995-05-26 1997-09-25 Fehrer Ernst Verfahren und vorrichtung zum täfeln eines vliesbandes
US6331268B1 (en) 1999-08-13 2001-12-18 First Quality Nonwovens, Inc. Nonwoven fabric with high CD elongation and method of making same
DE102006028448A1 (de) * 2006-06-21 2007-12-27 ERKO Trützschler GmbH Kreuzleger
DE102009055912A1 (de) * 2009-11-27 2011-06-09 Thüringisches Institut für Textil- und Kunststoff-Forschung e.V. Verfahren zur kontinuierlichen Herstellung von Stapelfasergelegen aus endlich langen Verstärkungsfasern mit gerichteter Faserorientierung
CN102502315B (zh) * 2011-09-30 2015-04-29 江苏朝阳液压机械集团有限公司 新型墙体材料自动铺料机
DE202013105029U1 (de) 2013-11-08 2015-02-10 Autefa Solutions Germany Gmbh Vliesleger
CN104139993B (zh) * 2014-08-19 2016-04-13 江苏朝阳液压机械集团有限公司 一种面料铺装机
CN106437156B (zh) * 2016-10-10 2019-03-15 湖北银土建设工程有限公司 一种无纺布施工装置
CN107034587A (zh) * 2017-05-15 2017-08-11 常州维盛无纺科技有限公司 超低基重无纺布的双向梳理铺网装置及多层铺网成型系统

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3973291A (en) * 1970-08-28 1976-08-10 Scott Paper Company Method for forming fibrous pads
US3638279A (en) * 1970-10-20 1972-02-01 Msl Ind Inc Cross lapper
FR2234395B1 (fr) * 1973-06-19 1976-09-17 Asselin Robert
DE2551898A1 (de) * 1975-11-19 1977-06-02 Krupp Gmbh Florleger
US4194270A (en) * 1976-03-06 1980-03-25 Eduard Hille Apparatus for laying fiber fleeces or the like on a moving withdrawal belt
DE2654895C2 (de) * 1976-12-03 1986-06-12 Hergeth Hollingsworth GmbH, 4408 Dülmen Regelvorrichtung für ein periodisch schwingendes Teil
US4290170A (en) * 1980-03-27 1981-09-22 Union Carbide Corporation Device for aligning the attenuating fiber mats

Also Published As

Publication number Publication date
US4481694A (en) 1984-11-13
EP0071033A1 (fr) 1983-02-09
JPS5836254A (ja) 1983-03-03
JPH0248651B2 (fr) 1990-10-25
DE3262133D1 (en) 1985-03-14
ATE11577T1 (de) 1985-02-15
DE3125946A1 (de) 1983-01-20

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