EP0292581A1 - Méthode pour répandre une nappe de copeaux - Google Patents

Méthode pour répandre une nappe de copeaux Download PDF

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Publication number
EP0292581A1
EP0292581A1 EP87107526A EP87107526A EP0292581A1 EP 0292581 A1 EP0292581 A1 EP 0292581A1 EP 87107526 A EP87107526 A EP 87107526A EP 87107526 A EP87107526 A EP 87107526A EP 0292581 A1 EP0292581 A1 EP 0292581A1
Authority
EP
European Patent Office
Prior art keywords
fleece
width
supply
felt
receiving device
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
EP87107526A
Other languages
German (de)
English (en)
Other versions
EP0292581B1 (fr
Inventor
Walter Henschel
Manfred Riesner
Uwe Dr. Kunstmann
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.)
Carl Schenck AG
Original Assignee
Carl Schenck AG
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 Carl Schenck AG filed Critical Carl Schenck AG
Priority to EP87107526A priority Critical patent/EP0292581B1/fr
Priority to DE8787107526T priority patent/DE3766247D1/de
Priority to AT87107526T priority patent/ATE58325T1/de
Priority to US07/191,041 priority patent/US4931243A/en
Priority to CA000566410A priority patent/CA1300552C/fr
Priority to FI882166A priority patent/FI85959C/fi
Publication of EP0292581A1 publication Critical patent/EP0292581A1/fr
Application granted granted Critical
Publication of EP0292581B1 publication Critical patent/EP0292581B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • B27N3/146—Controlling mat weight distribution

Definitions

  • the invention relates to a method for spreading a chip fleece from a supply in a width corresponding to the fleece width onto a base moving under the supply in accordance with a fleece height distribution predetermined in the fleece transversely to the fleece direction.
  • a method for influencing the density distribution of a chip fleece to be scattered and a device for this purpose have become known from European patent specification 0 068 l62, which is characterized in that a partial quantity resulting therefrom is drawn from at least one partial flow over part of its width in accordance with a predetermined density distribution becomes.
  • European patent specification 0 109 456 has disclosed a method and a device for equalizing the density distribution in a synthetic wood panel, in which, depending on the weight distribution of the bulk material discharged from a supply, measured by a discharge cross section, a separation command for those present in the corresponding partial cross sections is issued by one predetermined target density distribution different weight of the bulk material for their separation ge is forming.
  • a separation command for those present in the corresponding partial cross sections is issued by one predetermined target density distribution different weight of the bulk material for their separation ge is forming.
  • the present invention is based on the object of eliminating errors which are caused by discharge elements in the transverse distribution of the chip fleece and of carrying out a control and control of the transverse distribution. This object is achieved with the characterizing features of claim 1.
  • the errors caused by the removal devices are eliminated by dividing the spreading material removed from the supply over the entire spreading width and by changing the direction of the individual particles. There is a quasi-uniform alignment of chip particles falling unevenly into a cascade. This allows correct removal from the uniform chip veil to be carried out via the predetermined fleece distribution curve when the fleece is deposited.
  • a method and a device for dividing a conveying flow have become known from the German laid-open specification 29 42 l63, which is characterized in that the conveying flow is continuous Current divider is supplied and the steady partial flows along the flow divider and several are continuously promoted by the flow divider.
  • chip quantities supplied to this current divider are exactly divided, but this also means that the distribution errors present in the spreading material are passed on via a distribution chute.
  • the object on which the invention is based is achieved on the basis of the state of the art which has become so well known by the characterizing features of claim 2.
  • a conveyor device is provided in the receiving device. This makes it possible, according to the invention, on the one hand, to transport back the partial quantity present in the receiving device or, according to the invention, to distribute it evenly over the spreading width and by arranging a weir which extends over the entire width of the fleece, a uniform application of a fleece layer either below the fleece to be built up or onto it put on the fleece.
  • At least one spreader roller is additionally provided under the last cascade. This ensures that the chips are easily separated in the transition area to the cover layers. In addition, braking and flattening of the chips is supported at the same time.
  • the receiving device has closable openings separated by webs, which can be displaced with respect to one another transversely to the nonwoven direction with the rake interacting with them.
  • the webs of the receiving device are designed as rakes.
  • a particularly advantageous embodiment consists in that two rakes provided one above the other and above the receiving device can be displaced relative to one another transversely to the fleece direction. This arrangement allows the opening width into the receiving device to be regulated in the simplest form, which inevitably leads to a regulation of the receiving amount.
  • a device is proposed according to the invention in which a light beam emitted by a light source strikes the chip fleece across its width across the direction of progress, that a video camera records this light line and passes this information on to a computer by deriving control information for the recording device that the lines of light recorded over a length of the fleece correspond to the width of the fleece in the computer and then the plate surface is displayed in a color grid assigned to the height layers on a monitor.
  • a light beam emitted by a light source strikes the chip fleece across its width across the direction of progress, that a video camera records this light line and passes this information on to a computer by deriving control information for the recording device that the lines of light recorded over a length of the fleece correspond to the width of the fleece in the computer and then the plate surface is displayed in a color grid assigned to the height layers on a monitor.
  • FIG. 1 bulk material 2 to be scattered from a chip supply (not shown) via a rake-like dividing device 1 for the production of chipboard, waverboard and OSB boards is fed via a distribution chute 3 to the rake pairs 5, 6, 7 located in a housing 4.
  • the pairs of rakes consist of rods of the same length that extend over the width of the fleece and are spaced from one another and are preferably attached to cross rods 8 with one end each.
  • the cross bars 8 extend flat if over the entire width of the housing 4, which is adapted to the fleece width.
  • the number shown in FIG. 1 and the inclination of the rakes represent only one exemplary embodiment.
  • the computing pair 5 forms the first cascade
  • the computing pairs 6 and 7 form the second cascade.
  • the inclination of the pairs of rakes to one another is initiated via the cross bars 8 from outside the housing 4.
  • two spreader rollers 9 are arranged below the last cascade. These serve to change and evenly brake the evenly distributed material in its direction of fall and / or to achieve a simple separation of the chip material if a particle board or an OSB plate is produced from several chip layers and the present device, for example for the production of the Middle class is used.
  • a pick-up device 11 is also provided on a rake of the pair of rakes 7, by means of which too much scattered material is picked up.
  • the function of this receiving device is explained in more detail in connection with FIG. 2.
  • the supporting device 11 can also be located behind the rake which is the most upstream in the direction of the nonwoven which is built up on a support (in this case, the left rake of the computing pair 8).
  • a fleece holding device 12 is shown below the housing 4, which extends over the entire spreading width.
  • the fleece receiving device l2 can be a conveyor belt that extends over the width of the chip fleece, or overlapping flexible or rigid underlays or a combination of such fleece carriers.
  • the fleece receiving device l2 moves in the direction of an arrow l3, so that the final fleece height l4 for the fleece formed under this housing is reached at the left end of the housing 4.
  • This image generated in this way is fed to a computer 18.
  • the fleece height l4 picked up over the fleece width corresponds to a predetermined fleece height
  • no control command l9 is passed on to an adjustment mechanism 20 (cf. FIG. 3) in the pick-up device 11.
  • the course of the fleece height over the width of a scattered fleece is represented by a first monitor 2l connected to the computer l8, and the height layers are shown on a second monitor 22 in a grid over the length of a finished chipboard.
  • a plurality of light beams l5 from a fixed one If the light source 23 is emitted or projected onto the nonwoven surface, then with a fixed video camera l7 nonwoven surfaces can be recorded which differ significantly in height without the scattering accuracy being reduced thereby.
  • the bulk material 2 falling into the housing 4 according to FIG. 2 via a rake-like dividing device 1 is divided via the distribution chute 3.
  • the errors of the part of the non-redirected bulk material 2 will remain until the end of the distribution chute. If a partial stream 25 thus provided with errors strikes the computing pair 5, this is resolved into a further partial stream 26 and the previous partial stream 25 by the right computing unit of the computing pair 5.
  • the further partial stream 26 divides again on the left-hand rake of the computing pair 7, so that any irregularities present on the distribution chute 3 are thereby compensated.
  • the partial flow 25, which could still have distribution errors from the distribution chute 3, will come into the area of the receiving device 11, which also extends over the entire later fleece width.
  • the partial stream 25 is also divided here.
  • the distribution error arriving via the distribution chute 3 has already become so small that this error can be regarded as practically balanced .
  • openings 27 of the receiving device are opened more or less according to a double arrow 28, so that they open too much occurring quantity of bulk material discharged from the supply, not shown, can flow into the receiving device 11.
  • a distribution screw 29 is provided in the receiving device 11, through which the incoming material can be transported away.
  • a conveyor device (99) which is moved back and forth perpendicularly to the image plane, can serve, as shown in more detail in FIG. 3, to even out excess bulk material 30 within the receiving device. If the receiving device 11 has an overflow edge 3l in its lower part, the excess material 30 that has been poured over will emerge and, depending on the arrangement of the receiving device, be placed downstream or upstream in the area of the last cascade as a nonwoven underlay or as a nonwoven underlay.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Dental Preparations (AREA)
  • Pens And Brushes (AREA)
  • Collation Of Sheets And Webs (AREA)
  • Control Of Conveyors (AREA)
  • Nonwoven Fabrics (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
EP87107526A 1987-05-23 1987-05-23 Méthode pour répandre une nappe de copeaux Expired - Lifetime EP0292581B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP87107526A EP0292581B1 (fr) 1987-05-23 1987-05-23 Méthode pour répandre une nappe de copeaux
DE8787107526T DE3766247D1 (de) 1987-05-23 1987-05-23 Verfahren zum streuen eines spaenevlieses.
AT87107526T ATE58325T1 (de) 1987-05-23 1987-05-23 Verfahren zum streuen eines spaenevlieses.
US07/191,041 US4931243A (en) 1987-05-23 1988-05-06 Process and apparatus for spreading a chip web
CA000566410A CA1300552C (fr) 1987-05-23 1988-05-10 Procede de dechargement de copeaux sur une bande continue et appareil connexe
FI882166A FI85959C (fi) 1987-05-23 1988-05-10 Foerfarande foer att utstroe en spaonmatta.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP87107526A EP0292581B1 (fr) 1987-05-23 1987-05-23 Méthode pour répandre une nappe de copeaux

Publications (2)

Publication Number Publication Date
EP0292581A1 true EP0292581A1 (fr) 1988-11-30
EP0292581B1 EP0292581B1 (fr) 1990-11-14

Family

ID=8197020

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87107526A Expired - Lifetime EP0292581B1 (fr) 1987-05-23 1987-05-23 Méthode pour répandre une nappe de copeaux

Country Status (6)

Country Link
US (1) US4931243A (fr)
EP (1) EP0292581B1 (fr)
AT (1) ATE58325T1 (fr)
CA (1) CA1300552C (fr)
DE (1) DE3766247D1 (fr)
FI (1) FI85959C (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0800901A1 (fr) * 1996-04-10 1997-10-15 Schenck Panel Production Systems GmbH Procédé et appareil pour fabriquer un mat
DE19916447A1 (de) * 1999-04-12 2000-10-19 Dieffenbacher Schenck Panel Formstation
DE10101380A1 (de) * 2001-01-13 2002-07-18 Dieffenbacher Schenck Panel Vorrichtung und Strecke zur Sichterbeschickung
DE10224497A1 (de) * 2002-05-31 2003-12-11 Dieffenbacher Gmbh Maschf Vorrichtung zur Längsorientierung von länglichen Holzspänen
US7004300B2 (en) 2002-07-08 2006-02-28 Maschinenfabrik J. Dieffenbacher Gmbh & Co. Adjustable disc roll for longitudinally orienting elongated wood chips
EP2531332A1 (fr) * 2010-02-05 2012-12-12 Dieffenbacher GmbH Maschinen- und Anlagenbau Procédé et installation de réalisation d'une nappe de matière particulaire à partir d'au moins une couche de matière particulaire, et nappe de matière particulaire à comprimer dans une presse au cours de la réalisation de plaques en matériau dérivés du bois
EP2531331B1 (fr) * 2010-02-05 2018-07-11 Dieffenbacher GmbH Maschinen- und Anlagenbau Procédé et installation de fabrication d'un mat de matériau granulaire constitué d'au moins une couche distribuée
CN109843568A (zh) * 2016-10-06 2019-06-04 瑞士卢森技术股份公司 木质材料板压制设备及监测木质材料板压制设备的方法
DE202018102823U1 (de) 2018-05-22 2019-08-26 Dieffenbacher GmbH Maschinen- und Anlagenbau Vorrichtung zur Streuung eines Vlieses auf einem Formband
EP3572197A1 (fr) 2018-05-22 2019-11-27 Dieffenbacher Gmbh Maschinen- Und Anlagenbau Dispositif et procédé d'étalement d'un non tissé sur une bande de formage

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH681990A5 (fr) * 1989-04-14 1993-06-30 Matec Holding
DE4117252A1 (de) * 1991-05-27 1992-12-03 Winkler Duennebier Kg Masch Vorrichtung zum aufloesen von flockenverklumpungen
CA2173944C (fr) * 1993-10-19 1999-08-10 Michael Francis Vonderhaar Procede et dispositif de formation d'un flux intermittent d'application de particules sur une nappe fibreuse
ES2202188T3 (es) * 1999-11-17 2004-04-01 Alexanderwerk Aktiengesellschaft Instalacion de compactado para productos a granel.
DE10342903B4 (de) * 2003-09-17 2006-03-09 Siempelkamp Maschinen- Und Anlagenbau Gmbh & Co. Kg Streugutbunker mit einer Austragsvorrichtung zum Streuen von Streugut
DE102005062953B4 (de) * 2005-12-29 2008-07-03 Glunz Ag Verfahren und Vorrichtung zur Herstellung von Formkörpern, insbesondere Platten, aus Lignocellulose haltigen Fasern mit Faseranalyse
DE102006047002A1 (de) * 2006-10-02 2008-04-03 Dieffenbacher Gmbh + Co. Kg Verfahren, Vorrichtung und Anlage zum Feststellen und Ausscheiden von Unregelmäßigkeiten aus einem bewegten Materialstrom im Zuge der Herstellung von Werkstoffplatten
CN104988663B (zh) * 2015-07-03 2017-10-03 苏州宝丽洁纳米材料科技股份有限公司 一种无纺布纤维流向监测装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR984650A (fr) * 1949-04-08 1951-07-09 Appareil pour saupoudrer des produits pulvérulents dans la fabrication de matériaux de construction
US2943365A (en) * 1956-12-03 1960-07-05 Schubert Felting apparatus
DE2024490A1 (en) * 1969-05-20 1971-02-04 Teutoburger Sperrholzwerk Georg Nau GmbH, 4931 Pwitsheide Chip board with plywood surface
FR2285239A1 (fr) * 1974-09-18 1976-04-16 Schenck Ag Carl Dispositif pour la fabrication d'une nappe de copeaux deverses
DE2942163A1 (de) * 1979-10-18 1981-04-30 Carl Schenck Ag, 6100 Darmstadt Verfahren und vorrichtung zum aufteilen eines foerderstromes
EP0069162A1 (fr) * 1981-07-04 1983-01-12 Carl Schenck Ag Procédé et dispositif pour contrôler la répartition de densité dans une nappe de particules dispersée
EP0230483A1 (fr) * 1986-01-20 1987-08-05 Carl Schenck Ag Procédé pour uniformiser des particules de dispersion et machine pour exécuter ce procédé

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH352129A (de) * 1956-06-27 1961-02-15 Loedige Wilhelm Vorrichtung zum Herstellen von gepressten Platten aus faserigen Stoffen
US4353686A (en) * 1981-01-19 1982-10-12 Formica Corporation Apparatus for air-layer fibrous webs
DE3109151A1 (de) * 1981-03-11 1982-10-14 G. Siempelkamp Gmbh & Co, 4150 Krefeld "vorrichtung zum aufstreuen von spanplatten-streugut auf ein formband"
DE3273054D1 (en) * 1982-11-20 1986-10-09 Schenck Ag Carl Method of and apparatus for equalizing the density distribution in an artificial-wood panel

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR984650A (fr) * 1949-04-08 1951-07-09 Appareil pour saupoudrer des produits pulvérulents dans la fabrication de matériaux de construction
US2943365A (en) * 1956-12-03 1960-07-05 Schubert Felting apparatus
DE2024490A1 (en) * 1969-05-20 1971-02-04 Teutoburger Sperrholzwerk Georg Nau GmbH, 4931 Pwitsheide Chip board with plywood surface
FR2285239A1 (fr) * 1974-09-18 1976-04-16 Schenck Ag Carl Dispositif pour la fabrication d'une nappe de copeaux deverses
DE2942163A1 (de) * 1979-10-18 1981-04-30 Carl Schenck Ag, 6100 Darmstadt Verfahren und vorrichtung zum aufteilen eines foerderstromes
EP0069162A1 (fr) * 1981-07-04 1983-01-12 Carl Schenck Ag Procédé et dispositif pour contrôler la répartition de densité dans une nappe de particules dispersée
EP0230483A1 (fr) * 1986-01-20 1987-08-05 Carl Schenck Ag Procédé pour uniformiser des particules de dispersion et machine pour exécuter ce procédé

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5922254A (en) * 1996-04-10 1999-07-13 Schenck Panel Production System, Gmbh Method and apparatus for producing a mat of preset width and thickness for wood material boards or similar boards
EP0800901A1 (fr) * 1996-04-10 1997-10-15 Schenck Panel Production Systems GmbH Procédé et appareil pour fabriquer un mat
DE19916447A1 (de) * 1999-04-12 2000-10-19 Dieffenbacher Schenck Panel Formstation
US6695605B1 (en) 1999-04-12 2004-02-24 Dieffenbacher Schenck Panel Gmbh Forming station with a compartmentalized chute
DE10101380B4 (de) * 2001-01-13 2008-12-24 Dieffenbacher Gmbh + Co. Kg Sichterbeschickungungsstrecke bei Anlagen zur Herstellung von Holzfaserplatten
DE10101380A1 (de) * 2001-01-13 2002-07-18 Dieffenbacher Schenck Panel Vorrichtung und Strecke zur Sichterbeschickung
DE10224497A1 (de) * 2002-05-31 2003-12-11 Dieffenbacher Gmbh Maschf Vorrichtung zur Längsorientierung von länglichen Holzspänen
US7004300B2 (en) 2002-07-08 2006-02-28 Maschinenfabrik J. Dieffenbacher Gmbh & Co. Adjustable disc roll for longitudinally orienting elongated wood chips
EP2531332A1 (fr) * 2010-02-05 2012-12-12 Dieffenbacher GmbH Maschinen- und Anlagenbau Procédé et installation de réalisation d'une nappe de matière particulaire à partir d'au moins une couche de matière particulaire, et nappe de matière particulaire à comprimer dans une presse au cours de la réalisation de plaques en matériau dérivés du bois
EP2531331B1 (fr) * 2010-02-05 2018-07-11 Dieffenbacher GmbH Maschinen- und Anlagenbau Procédé et installation de fabrication d'un mat de matériau granulaire constitué d'au moins une couche distribuée
CN109843568A (zh) * 2016-10-06 2019-06-04 瑞士卢森技术股份公司 木质材料板压制设备及监测木质材料板压制设备的方法
DE202018102823U1 (de) 2018-05-22 2019-08-26 Dieffenbacher GmbH Maschinen- und Anlagenbau Vorrichtung zur Streuung eines Vlieses auf einem Formband
EP3572197A1 (fr) 2018-05-22 2019-11-27 Dieffenbacher Gmbh Maschinen- Und Anlagenbau Dispositif et procédé d'étalement d'un non tissé sur une bande de formage
CN110509392A (zh) * 2018-05-22 2019-11-29 迪芬巴赫机械工程有限公司 用于在成型带上散布料毡的设备和方法

Also Published As

Publication number Publication date
EP0292581B1 (fr) 1990-11-14
DE3766247D1 (de) 1990-12-20
FI85959C (fi) 1992-06-25
CA1300552C (fr) 1992-05-12
FI85959B (fi) 1992-03-13
FI882166A0 (fi) 1988-05-10
ATE58325T1 (de) 1990-11-15
US4931243A (en) 1990-06-05
FI882166A (fi) 1988-11-24

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