DK201000282A - Method and apparatus for the dry forming of a fibre web - Google Patents
Method and apparatus for the dry forming of a fibre web Download PDFInfo
- Publication number
- DK201000282A DK201000282A DKPA201000282A DKPA201000282A DK201000282A DK 201000282 A DK201000282 A DK 201000282A DK PA201000282 A DKPA201000282 A DK PA201000282A DK PA201000282 A DKPA201000282 A DK PA201000282A DK 201000282 A DK201000282 A DK 201000282A
- Authority
- DK
- Denmark
- Prior art keywords
- depositing belt
- material layer
- fibres
- depositing
- belt
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract 10
- 239000000835 fiber Substances 0.000 title claims abstract 3
- 238000000151 deposition Methods 0.000 claims abstract 25
- 239000000463 material Substances 0.000 claims abstract 16
- 230000005284 excitation Effects 0.000 claims 4
- 238000000605 extraction Methods 0.000 claims 2
- 230000008021 deposition Effects 0.000 claims 1
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
-
- 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
- D04H1/736—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 characterised by the apparatus for arranging fibres
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Nonwoven Fabrics (AREA)
- Preliminary Treatment Of Fibers (AREA)
Abstract
The invention relates to a method and an apparatus for the dry forming of a fibre web, in which a multiplicity of fibres are deposited onto an air-permeab depositing belt within a forming zone by means of an air stream. For this purpose, the air is suction extracted on an underside of the depositing belt, 50 that the fibres are deposited on a top side of the depositing belt 50 as to form a material layer. In order to obtain as uniform a mass distribution as possible within the material layer on the top side of the depositing belt, the material layer is guided on the top side of the depositing belt through a compensation zone in which a compensating distribution of the fibres on the top side of the depositing belt is brought about by an exciting of the material layer to vibrat ion.
Claims (14)
1. Method for the dry forming of a fibre web, in which a multiplicity of fibres are deposited onto an air-permeable depositing belt within a forming zone by means of an air stream, in which the air is suction-extracted on an underside of the depositing belt, and in which the material layer of the fibres which is produced on a top side of the depositing belt is conveyed out of the forming zone by the depositing belt, characterized in that the material layer is guided on the top side of the depositing belt through a compensation zone in which a compensating distribution of the fibres on the top side of the depositing belt is brought about by a vibration of the material layer.
2. Method according to Claim 1, characterized in that vibration excitation acts directly on the material layer or is transmitted indirectly to the material layer by the depositing belt.
3. Method according to Claim 1 or 2, characterized in that the material layer and/or the depositing belt are/is excited to vibrations by at least one vibration actuator.
4. Method according to Claim 1 or 2, characterized in that the material layer and/or the depositing belt are/is excited to vibrations by a pulsating air stream or by an airborne sound.
5. Method according to one of Claims 1 to 4, characterized in that, within the compensation zone, the material layer is excited to vibrations linearly or areally over a machine width.
6. Method according to Claim 5, characterized in that the areal excitation is restricted to predefined area regions of the material layer within the compensation zone .
7. Method according to one of Claims 1 to 6, characterized in that the vibration excitation of the material layer within the compensation zone and/or within the machine width takes place with variable frequencies and/or variable amplitudes.
8. Apparatus for carrying out the method according to one of Claims 1 to 7, with a forming device (1) which deposits a multiplicity of fibres within a forming zone by means of an air stream, with an air-permeable depositing belt (5) which is assigned to the forming device (1) for the uptake of the fibres and which is designed to be continuously drivable for the conveyance of the material layer (7) formed by deposition of the fibres, and with a suction-extraction device (9) which is arranged on that side of the depositing belt (5) which lies opposite the forming device (1), characterized in that the depositing belt (5) is assigned a compensation device (11), by means of which a compensating distribution of the fibres on the top side of the depositing belt (5) is brought about by a vibration of the material layer (7).
9. Apparatus according to Claim 8, characterized in that the compensation device (11) has at least one vibration actuator (12) which is coupled to the depositing belt (5) .
10. Apparatus according to Claim 9, characterized in that the vibration actuator (12) is formed by one or more rotating camshafts (17), the camshaft (17), or camshafts (17), extending, with a plurality of cams (18) arranged on the circumference, transversely with respect to the depositing belt (5).
11. Apparatus according to Claim 9, characterized in that the vibration actuator (12) is formed by at least one, or more, vibrating elements (16), the vibrating element (16) or vibrating elements (16) being supported on an underside of the depositing belt (5).
12. Apparatus according to Claim 8, characterized in that the compensation device (11) has at least one airborne-sound source (19) which is arranged above or below the depositing belt.
13. Apparatus according to one of Claims 8 to 12, characterized in that the compensation device (11) has a control unit (22) for controlling the vibration excitation which is connected to the vibration actuator (12).
14. Apparatus according to one of Claims 8 to 13, characterized in that the suction-extraction device (9) has on the underside of the depositing belt (5) a suction connection piece (10.2) which is assigned to the compensation device (11)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009016864 | 2009-04-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DK201000282A true DK201000282A (en) | 2010-10-09 |
Family
ID=42733429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DKPA201000282A DK201000282A (en) | 2009-04-08 | 2010-04-06 | Method and apparatus for the dry forming of a fibre web |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN101858015A (en) |
| DE (1) | DE102010013710A1 (en) |
| DK (1) | DK201000282A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010052010A1 (en) * | 2010-11-19 | 2012-05-24 | Oerlikon Textile Gmbh & Co. Kg | Apparatus for dry forming a fibrous web |
| DE102012111815A1 (en) * | 2011-12-22 | 2013-06-27 | Oerlikon Textile Gmbh & Co. Kg | Device useful for dry molding a fiber web, comprises molding head, which has fiber outlet having a molding wire which is arranged above a storage tape and comprises a number of clamping plates connected by rigid holding device |
| CN105899347B (en) * | 2014-01-21 | 2019-07-12 | 欧瑞康纺织有限及两合公司 | Method and apparatus for making membranes |
| US10208412B2 (en) | 2016-06-16 | 2019-02-19 | Goodrich Corporation | Systems and methods for forming a composite structure |
| CN106387226B (en) * | 2016-11-01 | 2023-09-22 | 福建农林大学 | A jasmine tea flower maintenance device and its use method |
| DE102017129220A1 (en) * | 2017-12-08 | 2019-06-13 | TRüTZSCHLER GMBH & CO. KG | Device for the hydrodynamic consolidation of nonwovens, woven or knitted fabrics |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4318967A1 (en) | 1993-06-08 | 1994-12-15 | Thueringisches Inst Textil | Process for the production of directed short-fibre fleeces |
| DE10022110B4 (en) | 2000-05-08 | 2007-10-25 | Dieter Ronnenberg | Influencing a web property profile by means of at least one sound field |
| DK200500842A (en) | 2005-06-09 | 2006-12-10 | Dan Web Holding As | Apparatus and method for dry forming a fibrous material |
-
2010
- 2010-03-23 CN CN201010145618A patent/CN101858015A/en active Pending
- 2010-04-01 DE DE102010013710A patent/DE102010013710A1/en not_active Withdrawn
- 2010-04-06 DK DKPA201000282A patent/DK201000282A/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| DE102010013710A1 (en) | 2010-10-14 |
| CN101858015A (en) | 2010-10-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AHS | Application shelved for other reasons than non-payment |