EP3976334A1 - Vorrichtung und verfahren zur herstellung eines vlieses - Google Patents
Vorrichtung und verfahren zur herstellung eines vliesesInfo
- Publication number
- EP3976334A1 EP3976334A1 EP20732745.3A EP20732745A EP3976334A1 EP 3976334 A1 EP3976334 A1 EP 3976334A1 EP 20732745 A EP20732745 A EP 20732745A EP 3976334 A1 EP3976334 A1 EP 3976334A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- forming belt
- separation roller
- wall
- litter space
- outlet opening
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
- B27N3/10—Moulding of mats
- B27N3/14—Distributing or orienting the particles or fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N1/00—Pretreatment of moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N1/00—Pretreatment of moulding material
- B27N1/02—Mixing the material with binding agent
- B27N1/029—Feeding; Proportioning; Controlling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
- B27N3/10—Moulding of mats
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
- B27N3/10—Moulding of mats
- B27N3/12—Moulding of mats from fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
- B27N3/18—Auxiliary operations, e.g. preheating, humidifying, cutting-off
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N7/00—After-treatment, e.g. reducing swelling or shrinkage, surfacing; Protecting the edges of boards against access of humidity
- B27N7/005—Coating boards, e.g. with a finishing or decorating layer
Definitions
- the above disclosures are suitable for generating single-layer fiber mats, also called pressed material mats, preferably in the course of the production of medium-density fiber boards (MDF), which are designed to be relatively homogeneous in their structure.
- MDF medium-density fiber boards
- the (high) circumferential speed of the needle roller and the vacuum boxes influencing the air flow advantageously generate at least one turbulent air flow in the first litter space, preferably in the vicinity of the guide plate near the exit opening of the separation roller. This turbulence
- Fractional parts of the material as these have a lower momentum. In this way, the fine particles separate from the rest of the flow of material and accumulate in the first litter space against the direction of production.
- the invention and the separation in the device for producing the nonwoven create a fine surface on the
- a sieve preferably a harp sieve, can be arranged between the first and the second litter space.
- This arrangement of the harp screen has the advantage that excessively large or coarser particles of the material are avoided from the first into the second litter space and the surface quality is improved.
- Separation roller can be designed with a conical shape or with a cross-section that reduces the size of the material flow
- Turbulence existing air in the first litter space can be adjusted.
- a supply air could be arranged on the second wall and / or on the guide plate, preferably between them.
- adjustable supply air flaps can preferably be arranged in the first litter space.
- the supply air can be used in order to be able to control the turbulence more carefully, which advantageously even differentiates transversely to the transport direction the molding tape can be adjustable.
- a supply air flap can also be adjustable across the width, for example, across the width
- Transport direction can be moved out and retracted from the device, or retreat areas are arranged within the device, in which the disruptive elements can be moved in order to arrange them quasi “invisible” or non-disruptive for the corresponding air flows.
- the device itself but at least the separation roller, preferably with an outlet opening and / or the guide plate and / or the litter spaces could be arranged adjustable in their distance from the forming belt in order to be able to react easily to operational changes or to be able to set different operating conditions .
- Embodiment predominantly enter the litter space with a predominantly vertical vector component.
- the guide plate can be adjusted longitudinally and / or transversely in its distance from the forming band by adjusting and / or bending, preferably in sections and particularly preferably by adjusting a longitudinal and / or transversely multi-part guide plate.
- a vacuum can be applied by means of a vacuum connection, and / or at the entrance of the forming belt an air guiding device can be used to set the supply air between the forming belt and the air guiding device in the second litter space, which is particularly preferably set in sections across the width of the forming belt .
- Molding tape with a permeability of less than 850 m 3 / h, preferably from 250 m 3 / h to 680 m 3 / h, particularly preferably from 360 m 3 / h to 500 m 3 / h, can be used.
- the scattering space 27 is at the bottom by the forming belt 2 and at the top by a guide plate 7 and correspondingly proportionally by the
- Separation roller 3 combs see. the circular mark and a separate rotated sectional drawing at the bottom left of the drawing. This is used to introduce as little entrained and accelerated air as possible into the return of the second wall 6 and at the same time to clean the elevations 31 with a correspondingly sharp contour.
- Embodiment through a sieve (not shown), for example a
- the smaller / lighter material will concentrate due to the separation and can be removed from the first litter space 27 through the harp screen and through the vacuum boxes 11 and / or the vacuum connection 12 in the second litter space 28 .
- This separated material portion is now enriched in the second litter space 28 as a very fine material and there on the Shaping tape deposited. This forms a very thin top layer of the
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Nonwoven Fabrics (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102019114038.2A DE102019114038A1 (de) | 2019-05-26 | 2019-05-26 | Vorrichtung und Verfahren zur Herstellung eines Vlieses |
| PCT/EP2020/064476 WO2020239713A1 (de) | 2019-05-26 | 2020-05-25 | Vorrichtung und verfahren zur herstellung eines vlieses |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3976334A1 true EP3976334A1 (de) | 2022-04-06 |
| EP3976334B1 EP3976334B1 (de) | 2023-09-06 |
Family
ID=71094268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20732745.3A Active EP3976334B1 (de) | 2019-05-26 | 2020-05-25 | Vorrichtung und verfahren zur herstellung eines vlieses |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3976334B1 (de) |
| DE (1) | DE102019114038A1 (de) |
| WO (1) | WO2020239713A1 (de) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2635301A (en) * | 1948-09-30 | 1953-04-21 | Plywood Res Foundation | Web or mat forming device |
| DE19640622C2 (de) * | 1996-10-01 | 1998-11-12 | Moeller Plast Gmbh | Baustoff und Verfahren sowie Vorrichtung zur Herstellung eines Baustoffs |
| DE10025177B4 (de) * | 2000-05-24 | 2004-04-15 | Flakeboard Company Limited, St.Stephen | Verfahren und Vorrichtung zur Auflösung von Ungleichmäßigkeiten in Holzfaserströmen |
| DE202004004037U1 (de) * | 2004-03-12 | 2004-05-13 | Binos Technologies Gmbh & Co. Kg | Vorrichtung zur Herstellung von Span- un Faserplatten |
| CN101259633B (zh) * | 2007-03-05 | 2011-04-27 | 上海人造板机器厂有限公司 | 中密度纤维板真空机械铺装机 |
-
2019
- 2019-05-26 DE DE102019114038.2A patent/DE102019114038A1/de not_active Withdrawn
-
2020
- 2020-05-25 EP EP20732745.3A patent/EP3976334B1/de active Active
- 2020-05-25 WO PCT/EP2020/064476 patent/WO2020239713A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020239713A1 (de) | 2020-12-03 |
| DE102019114038A1 (de) | 2020-11-26 |
| EP3976334B1 (de) | 2023-09-06 |
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