EP1556534A2 - Procede d'exploitation d'un dispositif de pose d'un non-tisse selon le procede de la pose en flux d'air - Google Patents

Procede d'exploitation d'un dispositif de pose d'un non-tisse selon le procede de la pose en flux d'air

Info

Publication number: EP1556534A2
Authority: EP; European Patent Office
Prior art keywords: laying; drum; fibers; laying drum; fleece
Prior art date: 2002-10-23
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

EP03809347A

Other languages

German (de)

English (en)

Other versions

EP1556534B1 (fr

Inventor

Bruno Ehrenhoefer

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.)

Truetzschler Nonwovens GmbH

Original Assignee

Fleissner 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.)

2002-10-23

Filing date

2003-10-22

Publication date

2005-07-27

2003-10-22 Application filed by Fleissner GmbH filed Critical Fleissner GmbH

2005-07-27 Publication of EP1556534A2 publication Critical patent/EP1556534A2/fr

2008-02-13 Application granted granted Critical

2008-02-13 Publication of EP1556534B1 publication Critical patent/EP1556534B1/fr

2023-10-22 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

Classifications

- 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
- D04H1/72—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 randomly arranged
- D04H1/732—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 randomly arranged by fluid current, e.g. air-lay

Definitions

a method for operating a device for laying a fleece of finite fibers by the air laying method is known, the device consisting of a rotatably mounted laying drum, the jacket of which is permeable to the fibers.
An air stream flows through the laying drum radially in the direction of an endless belt carrying the fleece to be laid and running along the laying drum, the fibers to be laid into a fleece being fed to the end face of the laying drum in the axial direction.
the pulp fibers are fed in the area of the outside diameter of the laying drum, that is to say eccentrically.
a comb drum whose combs only touch the lateral surface of the laying drum along one line, is likewise eccentrically mounted within the laying drum.
This laying drum is assigned a second drum in parallel, which are connected to one another by pipes which also engage on the end faces.
a laying device therefore consists of two laying drums, between which fibers flow in the circuit.
the laying drums extend over the entire working width, which can reach up to 4 or 5 m.
the drums In order to achieve an even distribution of the fibers on the endless belt, the drums must have an appropriate diameter. However, this is limited by the required dimensions of the ball bearings, which are arranged on their outer diameter for the rotatable mounting of the laying drum. The reason for this are the necessary eccentric openings in the end faces of the laying drums.
the diameter of the ball bearings cannot be built in any size. At a higher speed - as is necessary here when operating the laying drums - the balls of the ball bearings run too quickly in the bearing shells if the diameters are too large, which means that the lubricating film breaks off.
the invention has for its object to find a solution to the problem.
the laying drums should be able to be produced in any desired diameter, which results from the respective width of the fleece to be laid.
is a Larger diameter of the laying drums is advantageous for the production speed of the fleece to be laid.
the solution has been found in that the fibers are guided centrally into the laying drum.
the fibers are advantageously fed centrally to both end faces of the laying drum.
the device for laying a fleece made of finite fibers as well as pulp fibers according to the air laying method is provided with a permeable laying drum rotatably mounted in a housing with an end opening for feeding the fibers, the laying drum being arranged above an endless belt carrying the fleece to be laid, the below is a suction box for extracting the air supplied to the laying drum radially above.
the end opening for feeding the fibers into the laying drum is now arranged centrally.
the axis of the laying drum is thus designed as a fiber feed tube, which only has to have a diameter large enough that the necessary amount of fibers can be introduced. This means that the diameter of the ball bearings required for the rotatable mounting of the laying drum is completely independent of the outside diameter of the laying drum.
the laying drums can be built to any size, the ball bearings will never run hot even at high peripheral speeds.
a comb drum is to be stored in the laying drum, the combs of which rub against the inside of the casing of the laying drum and convey the fibers through the openings in the casing.
This comb drum is also mounted centrally in the laying drum, namely this comb drum forms the fiber insertion opening in the axis and the bearing of the laying drum is then arranged around the corresponding insertion tube.
Fig. 1 shows a section longitudinally through a laying drum as it is stored in the housing and
Fig. 2 shows a cross section through two laying drums arranged one behind the other.
a laying drum 3 is rotatably mounted in a housing 1, which is arranged above a leading endless belt 2, a laying drum 3 is rotatably mounted.
a further ball bearing 7 is arranged in the tubular axis 6 of the laying drum 3 and supports the tubular axis 8 of a comb drum 9.
the central opening 10 of this tube axis 8 is so large that the fibers flowing in through this opening 10 can be introduced in time and completely over the length of the drum 3.
the diameter of the laying drum 3 is independent of this and can take any dimension determined by other parameters.
Such a fiber insertion opening 10 is provided on both end faces of the laying drum. The fibers are therefore not circulated between two drums, but only one laying drum 3 forms a laying unit.
the comb drum 9 consists of two circular end plates 11, 12 which have the fiber inflow openings 10 in the center. On the outer circumference are attached around tubular brackets 13 which extend parallel and to the right of the inner shell of the laying drum 3. Radially on the outside, radially directed combs 14 are centered in the tubes 13 and end at the level of the inner surface of the jacket of the laying drum 3. Both the laying drum 3 and the comb drum 9 run in a driven manner, with a relative speed between the drums, this can be directed in the same direction or in the opposite direction.
a suction box 15 is arranged below the endless belt 2, through which the air 16 fed to the top of the laying drum 3 is sucked off.
the fibers emerging from the laying drum 3 reach the endless belt 2 with the air stream, are deposited there and form the fleece to be produced.
the endless belt 2 or the fleece lying thereon is sealed by a sealing roller 17, 18 to the suction box or to the housing 1.
Any number of single-drum devices can be arranged one behind the other from these constructions of a laying device. So there are no pairs of drums necessary.
the adjacent laying devices only require a wall 19 for separation.

Landscapes

Engineering & Computer Science (AREA)
Textile Engineering (AREA)
Preliminary Treatment Of Fibers (AREA)
Nonwoven Fabrics (AREA)
Looms (AREA)
Spinning Or Twisting Of Yarns (AREA)

EP03809347A 2002-10-23 2003-10-22 Procede d'exploitation d'un dispositif de pose d'un non-tisse selon le procede de la pose en flux d'air Expired - Lifetime EP1556534B1 (fr)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
DE10249533		2002-10-23
DE10249533A DE10249533A1 (de)	2002-10-23	2002-10-23	Verfahren zum Betreiben einer Vorrichtung zum Legen eines Vlieses nach dem Luftlegeverfahren und Vorrichtung dazu
PCT/EP2003/050742 WO2004038080A2 (fr)	2002-10-23	2003-10-22	Procede d'exploitation d'un dispositif de pose d'un non-tisse selon le procede de la pose en flux d'air

Publications (2)

Publication Number	Publication Date
EP1556534A2 true EP1556534A2 (fr)	2005-07-27
EP1556534B1 EP1556534B1 (fr)	2008-02-13

Family

ID=32087151

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP03809347A Expired - Lifetime EP1556534B1 (fr)	2002-10-23	2003-10-22	Procede d'exploitation d'un dispositif de pose d'un non-tisse selon le procede de la pose en flux d'air

Country Status (5)

Country	Link
EP (1)	EP1556534B1 (fr)
AT (1)	ATE386148T1 (fr)
DE (2)	DE10249533A1 (fr)
DK (1)	DK1556534T3 (fr)
WO (1)	WO2004038080A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP6354154B2 (ja)	2013-12-25	2018-07-11	セイコーエプソン株式会社	シート製造装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
AU547989B2 (en) *	1980-01-18	1985-11-14	Christensen, J.H.M.	A system for dry forming of paper or other sheet material of particles of fibres
US4640810A (en) *	1984-06-12	1987-02-03	Scan Web Of North America, Inc.	System for producing an air laid web
FI107818B (fi) *	1999-05-27	2001-10-15	Bki Holding Corp	Sihtiputki käytettäväksi rainamateriaalin kuivamuodostuksessa

2002
- 2002-10-23 DE DE10249533A patent/DE10249533A1/de not_active Withdrawn
2003
- 2003-10-22 AT AT03809347T patent/ATE386148T1/de not_active IP Right Cessation
- 2003-10-22 DE DE50309173T patent/DE50309173D1/de not_active Expired - Lifetime
- 2003-10-22 EP EP03809347A patent/EP1556534B1/fr not_active Expired - Lifetime
- 2003-10-22 WO PCT/EP2003/050742 patent/WO2004038080A2/fr not_active Ceased
- 2003-10-22 DK DK03809347T patent/DK1556534T3/da active

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004038080A2 *

Also Published As

Publication number	Publication date
DE10249533A1 (de)	2004-05-06
DE50309173D1 (de)	2008-03-27
EP1556534B1 (fr)	2008-02-13
DK1556534T3 (da)	2008-06-09
WO2004038080A2 (fr)	2004-05-06
WO2004038080A3 (fr)	2004-11-25
ATE386148T1 (de)	2008-03-15

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