EP0111025A1 - Dispositif de production de plaques agglomérées - Google Patents

Dispositif de production de plaques agglomérées Download PDF

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Publication number
EP0111025A1
EP0111025A1 EP82111490A EP82111490A EP0111025A1 EP 0111025 A1 EP0111025 A1 EP 0111025A1 EP 82111490 A EP82111490 A EP 82111490A EP 82111490 A EP82111490 A EP 82111490A EP 0111025 A1 EP0111025 A1 EP 0111025A1
Authority
EP
European Patent Office
Prior art keywords
rollers
bulk material
bulk
curtain
production
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
EP82111490A
Other languages
German (de)
English (en)
Other versions
EP0111025B1 (fr
Inventor
Dieter Dr. Arnold
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 AT82111490T priority Critical patent/ATE20320T1/de
Priority to EP82111490A priority patent/EP0111025B1/fr
Priority to DE8282111490T priority patent/DE3271697D1/de
Priority to US06/541,047 priority patent/US4524810A/en
Priority to CA000440754A priority patent/CA1206116A/fr
Priority to FI834487A priority patent/FI73167C/fi
Publication of EP0111025A1 publication Critical patent/EP0111025A1/fr
Application granted granted Critical
Publication of EP0111025B1 publication Critical patent/EP0111025B1/fr
Expired legal-status Critical Current

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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

Definitions

  • the invention relates to a method for influencing the density distribution in a bulk material in the production of synthetic wood panels.
  • Synthetic wood panels with non - uniform material properties lead to rejects or a reduction in the lifespan of workpieces made from these building materials during further processing.
  • the density of the finished board (wood as raw and material 40 (1982) page 385), measured over the cross-section of an artificial wood board, serves as the basis for the individual strength values, it is necessary, according to the area of application for the synthetic wood board, for a predetermined density distribution already at To achieve fleece production, since a change in the density distribution can no longer take place during the subsequent pressing.
  • the inventor Therefore, the task is based on compensating for errors in the density distribution occurring during the discharge of bulk material over the bulk width. This object is achieved with the characterizing features of claim 1) in that the discharged bulk material veil is subjected to mixing before entering the dividing cycle.
  • the process step of mixing before the dividing cycle makes it possible to obtain a quantity of bulk material that is always uniform over the width of the bed, which, with uniform carrying-down, be it as a fleece by means of throwing rollers or by means of a blower on a forming belt, which is preferably provided with documents does not separate.
  • the oscillating movements of the diaphragm walls formed by the roller jacket surfaces carry out mixing processes transversely to the bulk flow in such a way that, in the case of a streaky bulk curtain, areas of lower density between the individual longitudinal strands are present, material is transported from the strand core area into the area of low density and thus a compensating effect in the density distribution across the direction of progress of the bulk material veil is achieved.
  • a leveling effect occurs over the spreading width, which is particularly reinforced by adjusting the slot width between the roll surface areas.
  • a further embodiment of the subject matter of the invention is protected in the characterizing part of claim 4.). In this way, a leveling effect is achieved by the oscillating rotating rollers over a certain length of the bulk material curtain.
  • the method according to the invention and the inventive device proposed for carrying out this method can be used in the course of the production of synthetic wood panels such as chipboard or fiberboard in all types of manufacture, so it is independent of whether the production of synthetic wood panels by means of throwing scatter or by means of a blower or with the aid of an association of these two options for deferral takes place.
  • the present invention is also suitable in the same way for depositing synthetic wood nonwovens on a forming belt directly or on documents which are transported by a forming belt.
  • a bulk material veil 10 discharged from a floor belt bunker via discharge rollers 16 (cf. FIG. 3) generally has the cross section shown in FIG. 1. It's him Obviously, a synthetic wood panel to be produced from this will have a non-uniform density across its cross-section if it is pressed into a panel in a heating press.
  • slot walls are produced by specifying a slot 9 and in accordance with double arrows 13, 14 and oscillating rollers 1, 2 (see FIG. 2).
  • a density of the bulk material curtain 10 is produced (see FIG. 2).
  • rollers 1, 2 shows a pair of rollers 1, 2, the axes 3, 4 of which run parallel to one another.
  • spindles 5, 6, which connect roller bearings 7, 7 'and 8, -8' the rollers 1, 2 can be adjusted in parallel in accordance with the circumstances, so that a corresponding slot 9 is formed in which a uniform bulk material veil 10 is created.
  • the surfaces of the rollers 1, 2 can also be roughened.
  • the rollers 1, 2 can also be provided according to the invention with a plastic coating which has a high coefficient of friction in the axial direction, so that the bulk material veil 10 in the slot 9 is intensified evenly if it is a bulk material veil that contains a large part of fine bulk material is.
  • the method according to the invention can be adapted to practically all bulk material veils 10, even if the material for the bulk material veil is designed differently, such as fine material, mixed material, coarse material, rectangular chips (strands), square chips (wafers) ) ⁇ With practically constant density.
  • rotation of smooth rollers 1, 2 adapted to the falling speed of the bulk material curtain 10, the direction of rotation of the two rollers according to arrows 11, 12 towards slot 9, is achieved by rollers 1, 2 the falling speed of the bulk curtain 10 does not change.
  • the outer edge of the bulk material veil 10 is leveled such that the material 1 of the bulk material veil 10 touching the rollers 1, 2 is pushed off in the axial direction in areas a, in which less Material passes through the slot. This inevitably results in density compensation across the bulk width of the bulk curtain.
  • the uniformity of the bulk material curtain in the transverse direction can be significantly improved if a plurality of such rollers 1, 2 (see FIG. 3) are arranged one behind the other in the direction of fall of the bulk material curtain with different slot widths.
  • glued bulk material 17 is discharged from a floor belt bunker with a floor belt 15 and discharge rollers 16 for the production of synthetic wood panels.
  • a discharge scraper belt can also take the place of the discharge rollers 16.
  • the glued bulk material 17 is discharged and fed as smooth material curtain 10 to the smooth rollers 1, 2, which were explained in more detail in FIG. 2 i.
  • a plane 18 conceived by the axes 3, 4, in which the axes 3, 4 extend is oriented essentially orthogonally to the direction of fall of the bulk material curtain 10.
  • the bulk material veil 10 is then fed via a distribution device 19 to either a throwing device 20 or a blower device 21.
  • a distribution device 19 to either a throwing device 20 or a blower device 21.
  • associations of these depot facilities are also possible.
  • a synthetic wood fleece 24 is deposited on a forming belt 22, which carries documents 23 and moves in the direction of the arrow.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
EP82111490A 1982-12-10 1982-12-10 Dispositif de production de plaques agglomérées Expired EP0111025B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
AT82111490T ATE20320T1 (de) 1982-12-10 1982-12-10 Vorrichtung zur herstellung von kunstholzplatten.
EP82111490A EP0111025B1 (fr) 1982-12-10 1982-12-10 Dispositif de production de plaques agglomérées
DE8282111490T DE3271697D1 (en) 1982-12-10 1982-12-10 Device for the production of particle board
US06/541,047 US4524810A (en) 1982-12-10 1983-10-12 Method and apparatus for controlling the density distribution of bulk material
CA000440754A CA1206116A (fr) 1982-12-10 1983-11-08 Methode et dispositif de regulation de la densite de materiaux en vrac etales allant a la presse
FI834487A FI73167C (fi) 1982-12-10 1983-12-08 Anordning foer framstaellning av traematerialplattor.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP82111490A EP0111025B1 (fr) 1982-12-10 1982-12-10 Dispositif de production de plaques agglomérées

Publications (2)

Publication Number Publication Date
EP0111025A1 true EP0111025A1 (fr) 1984-06-20
EP0111025B1 EP0111025B1 (fr) 1986-06-11

Family

ID=8189390

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82111490A Expired EP0111025B1 (fr) 1982-12-10 1982-12-10 Dispositif de production de plaques agglomérées

Country Status (6)

Country Link
US (1) US4524810A (fr)
EP (1) EP0111025B1 (fr)
AT (1) ATE20320T1 (fr)
CA (1) CA1206116A (fr)
DE (1) DE3271697D1 (fr)
FI (1) FI73167C (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202013007861U1 (de) * 2013-09-05 2014-09-08 Novega Produktionssysteme Gmbh Vorrichtung zum Dosieren von Schüttgut
CN106042137A (zh) * 2015-04-10 2016-10-26 梅菲尔资产管理股份公司 铺装头、用于制造板坯的方法和板坯

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5074225A (en) * 1989-10-18 1991-12-24 Petrie A Stephen Mechanism for feeding solid materials
US6159412A (en) * 1996-09-11 2000-12-12 Dupont Canada Inc. Method for manufacture of liquid crystalline polymer films
DE102005046319A1 (de) 2005-09-27 2007-03-29 Endress + Hauser Flowtec Ag Verfahren zum Messen eines in einer Rohrleitung strömenden Mediums sowie Meßsystem dafür
DE102018112166A1 (de) * 2018-05-22 2019-11-28 Dieffenbacher GmbH Maschinen- und Anlagenbau Vorrichtung und Verfahren zur Streuung eines Vlieses auf einem Formband

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD61094A (fr) * 1900-01-01
DE483969C (de) * 1928-06-07 1929-10-08 A T G Allg Transportanlagen Ge Vorrichtung zur UEberladung von Foerdergut
DE812115C (de) * 1949-07-06 1951-08-27 Heinrich Dr-Ing Strombeck Verfahren zur Vorbereitung des Spaenegemisches fuer Spanplatten
DE1506890A1 (de) * 1966-06-02 1969-08-14 Fahrni Fred Vorrichtung zum Verteilen von schuettfaehigem Gut
DE3109151A1 (de) * 1981-03-11 1982-10-14 G. Siempelkamp Gmbh & Co, 4150 Krefeld "vorrichtung zum aufstreuen von spanplatten-streugut auf ein formband"

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3497113A (en) * 1967-12-22 1970-02-24 United States Steel Corp Distributor for falling granular material
US3576262A (en) * 1969-06-06 1971-04-27 Us Interior Rotary particle distributor for minimizing particle size segregation in a bin

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD61094A (fr) * 1900-01-01
DE483969C (de) * 1928-06-07 1929-10-08 A T G Allg Transportanlagen Ge Vorrichtung zur UEberladung von Foerdergut
DE812115C (de) * 1949-07-06 1951-08-27 Heinrich Dr-Ing Strombeck Verfahren zur Vorbereitung des Spaenegemisches fuer Spanplatten
DE1506890A1 (de) * 1966-06-02 1969-08-14 Fahrni Fred Vorrichtung zum Verteilen von schuettfaehigem Gut
DE3109151A1 (de) * 1981-03-11 1982-10-14 G. Siempelkamp Gmbh & Co, 4150 Krefeld "vorrichtung zum aufstreuen von spanplatten-streugut auf ein formband"

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202013007861U1 (de) * 2013-09-05 2014-09-08 Novega Produktionssysteme Gmbh Vorrichtung zum Dosieren von Schüttgut
CN106042137A (zh) * 2015-04-10 2016-10-26 梅菲尔资产管理股份公司 铺装头、用于制造板坯的方法和板坯
CN106042137B (zh) * 2015-04-10 2021-01-01 梅菲尔资产管理股份公司 铺装头、用于制造板坯的方法和板坯

Also Published As

Publication number Publication date
FI834487A (fi) 1984-06-11
ATE20320T1 (de) 1986-06-15
FI73167C (fi) 1987-09-10
US4524810A (en) 1985-06-25
FI73167B (fi) 1987-05-29
EP0111025B1 (fr) 1986-06-11
DE3271697D1 (en) 1986-07-17
CA1206116A (fr) 1986-06-17
FI834487A0 (fi) 1983-12-08

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