EP0429699B1 - Dispositif pour la formation de nattes de fibres imprégnées d'un agent liant pour la fabrication de panneaux de fibres - Google Patents

Dispositif pour la formation de nattes de fibres imprégnées d'un agent liant pour la fabrication de panneaux de fibres Download PDF

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Publication number
EP0429699B1
EP0429699B1 EP89121955A EP89121955A EP0429699B1 EP 0429699 B1 EP0429699 B1 EP 0429699B1 EP 89121955 A EP89121955 A EP 89121955A EP 89121955 A EP89121955 A EP 89121955A EP 0429699 B1 EP0429699 B1 EP 0429699B1
Authority
EP
European Patent Office
Prior art keywords
air
material impregnated
binding agent
spreading
glued
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.)
Expired - Lifetime
Application number
EP89121955A
Other languages
German (de)
English (en)
Other versions
EP0429699A1 (fr
Inventor
Josef Wiesinger
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.)
KRONOSPAN ANSTALT
Original Assignee
KRONOSPAN ANSTALT
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 KRONOSPAN ANSTALT filed Critical KRONOSPAN ANSTALT
Priority to AT89121955T priority Critical patent/ATE117620T1/de
Priority to EP89121955A priority patent/EP0429699B1/fr
Priority to DE58908950T priority patent/DE58908950D1/de
Priority to PL90287935A priority patent/PL164093B1/pl
Priority to HU907668A priority patent/HU213274B/hu
Publication of EP0429699A1 publication Critical patent/EP0429699A1/fr
Application granted granted Critical
Publication of EP0429699B1 publication Critical patent/EP0429699B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B27N1/00—Pretreatment of moulding material
    • B27N1/02—Mixing the material with binding agent
    • 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 device for spreading or the like for the production of press plates.
  • certain mats made of glued fiber or chip material which have a gluing machine for the fiber or chip material, transport devices for the glued pourable material connected to the outlet of the gluing machine, at least one dosing hopper for the glued material, at least one spreading space, the bottom of which forms a plate press forms a running conveyor belt, and has at least one air nozzle opening into the spreading space and supplied with compressed air by a fan.
  • gluing machines By means of such wind scattering machines, glued pourable fiber or chip material is previously piled up in a gluing machine such as a special mixer to form a mat-shaped web of a certain thickness and as uniform a consistency as possible, which is gradually compacted by means of pressure rollers during removal from the wind scattering machine and then cut into plates of a predetermined size, which is pressed in a hot press to the end product, namely the fiber or chipboard.
  • the invention has for its object, or the like when spreading mats. to avoid excessive and non-uniform drying of the pourable material from glued fiber and chip material.
  • the air sucked in by the fans can be removed from the transport system between the outlet or failure of the gluing machine and the dosing bunker, it being also possible to add further moist air from the dosing bunker in addition to the moist air sucked in by the transport system remove. It is also possible to draw in and remove humid air from the dosing hopper using the fans.
  • Fresh air can also be added in a controlled amount. In this way, the moisture content of the grit can be influenced in a targeted manner.
  • the quality of fiber and chipboard can be specifically improved in a simple manner, because the moisture content of the material poured into a mat or a fleece can be controlled uniformly.
  • glue can be saved because the correct moisture management of the pourable material allows the glue added to it to be used optimally.
  • excessive moisture formation is avoided so that the entire device can be kept sufficiently dry to prevent undesirable material deposits and material caking.
  • the wind scattering machine (1) shown in Fig. 1 has two dosing bunkers (2 and 3), under each of which there is a spreading space (4 and 5). Under the two spreading spaces (4 and 5) there is an endless conveyor belt (6) which leads the glued chip in the two spreading spaces (4 and 5) in the direction of arrow (7) to a processing station (8), which is only indicated schematically, where the mat-shaped chip material is compacted and finally pressed to chipboard.
  • the glued chip and fiber material is brought in by a closed conveyor (9) and fed through a double hopper (10) to two counter-rotating screw conveyors (11 and 12) which distribute the glued chip or fiber material in an approximately uniform distribution to the two dosing bunkers (2 and 3) feeds.
  • each dosing hopper there are four rakes (14), each rotatable about a horizontal axis (13), onto which the glued chip or fiber material is poured by the screw conveyors (11 and 12). These rakes (14) loosen up the heaped-up material that falls down onto a horizontal conveyor belt (15 or 16) located in the dosing hopper.
  • the conveyor belt (15) arranged in the dosing hopper (2) is driven in such a way that its upper run - seen in FIG. 1 - runs to the right, while the conveyor belt (16) arranged in the dosing hopper (3) is driven in the opposite direction.
  • each conveyor belt (15 and 16) there are pendulum flaps (17) running across the width of the conveyor belt in question, which lead into the spreading space (4 and 5) below.
  • a metering roller (18) is rotatably mounted about a horizontal axis (19), which ensures that the conveyor belts (15 and 16) the loosened glued chip or fiber material in Dispense uniform quantity distribution into the pendulum flaps (17).
  • Each blowing air device (20 or 21) has a housing (22), which is angular in side view, for introducing air. At the upper end of this housing (22) there is an opening (23) with a control flap (24) through which fresh air can be supplied. At the end of the approximately horizontally extending leg (25) there is a further opening (26) which leads into the metering bunker (2 or 3) located below it and through which air can be removed from the relevant metering bunker.
  • a control flap (27) in the horizontal leg (25) of the housing (22) serves to control the air supply from the dosing hopper in question.
  • Two fans (28) are arranged in the lower part of the housing (22), which suck in air and blow through nozzles (29) into the respective spreading space (4 or 5).
  • the blown-out air hits the glued fiber or chip material poured through the pendulum flap (17) approximately at right angles in the spreading space, so that the same is loosely scattered onto the conveyor belt (6).
  • the two spreading rooms (4 and 5) there are several hanging sieves (30) that work as fly chip catchers. This means that light chips are prevented from getting onto the fine surface of the chipboard.
  • the screens (30) are provided with vibrator motors to keep them clean.
  • the air in the dosing bunkers (2 and 3) is relatively humid, one can also work with relatively humid blown air, so that excessive drying of the fiber or chip material during Scattering process is avoided.
  • the proportion of fresh air drawn in by the fans (28) can be kept relatively low compared to the proportion of moist air drawn in from the dosing bunkers.
  • an exhaust air line (31 or 32) is connected, which open into each other and lead to a filter, not shown, with the help of the residues in the exhaust air of the evaporation of the glue component and other components of the processed chip or fiber material can be removed.
  • the chip or fiber material glued in a gluing machine (33) is passed through encapsulated conveyors (34, 35, 36) and an interposed double funnel (10) into the two dosing bunkers (2 and 3) of the wind scattering machine.
  • the wind scattering machine is essentially designed as explained in connection with FIG. 1.
  • a suction line (38) is connected to the suction nozzle (37) of each of the fans (28) working in the spreading spaces of the wind scattering machine and has a plurality of branches (39) which flow into the relevant dosing hopper (2 or 3) in the housing of the relevant conveyor (35 or 36) and open into the housing of the conveyor (34). This means that moist air can be drawn in from various points in the entire system.
  • control flaps used to control the intake air are not shown in FIG. 2.
  • FIG. 3 differs from the embodiment according to FIG. 2 only in that the suction line (38) is connected exclusively to the conveying devices (34, 35, 36) and thus only moist air is sucked in from the transport system.
  • the amount of moist air sucked in is controlled by an air amount control. It is also possible to add fresh air in a controlled amount. In this way, the moisture of the spreading material or the scattered glued fiber or chip material can be influenced and adjusted.
  • the advantages of the spreading device according to the invention lie in an improvement in the quality of the spreading material, the possibility of saving glue and the possibility of keeping the entire system dry.

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)
  • Treatment Of Fiber Materials (AREA)
  • Press Drives And Press Lines (AREA)

Claims (3)

  1. Machine pour épandre des matelas d'une matière en fibres ou copeaux encollée destinée à la fabrication de panneaux agglomérés ou analogues, et comprenant une encolleuse (33), des dispositifs transporteurs (11,12,34,35,36) pour véhiculer la matière particulaire encollée et qui font suite à la sortie de l'encolleuse, au moins une trémie doseuse (2, 3) pour la matière encollée, au moins une chambre d'épandage (4, 5) dont le fond est formé d'une bande transporteuse (6) qui aboutit à une presse à plateaux (8), et au moins une buse d'air (29) qui débouche dans la chambre d'épandage et qui est alimentée en air comprimé par au moins un ventilateur (28),
    caractérisée
    en ce que les dispositifs transporteurs (11, 12, 34, 35, 36) et/ou les trémies doseuses (2, 3) sont munies d'un caisson qui est raccordé au côté aspiration des ventilateurs (28).
  2. Machine selon la revendication 1, caractérisée en ce que le coté aspiration des ventilateurs (28) est raccordé à une source d'air neuf (23) et en ce que des régulateurs de débit d'air (24 ; 27) sont agencés dans les conduites d'amenée (25 ; 38, 39) pour l'air humide et pour l'air neuf.
  3. Machine selon la revendication 2, caractérisée en ce que les régulateurs de débit d'air (27) sont des obturateurs de réglage mobiles.
EP89121955A 1989-11-28 1989-11-28 Dispositif pour la formation de nattes de fibres imprégnées d'un agent liant pour la fabrication de panneaux de fibres Expired - Lifetime EP0429699B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
AT89121955T ATE117620T1 (de) 1989-11-28 1989-11-28 Vorrichtung zum streuen von matten aus beleimtem faser- oder spanmaterial für die herstellung von pressplatten od.dgl.
EP89121955A EP0429699B1 (fr) 1989-11-28 1989-11-28 Dispositif pour la formation de nattes de fibres imprégnées d'un agent liant pour la fabrication de panneaux de fibres
DE58908950T DE58908950D1 (de) 1989-11-28 1989-11-28 Vorrichtung zum Streuen von Matten aus beleimtem Faser- oder Spanmaterial für die Herstellung von Pressplatten od.dgl.
PL90287935A PL164093B1 (pl) 1989-11-28 1990-11-26 Urzadzenie do formowania mat z rozsypywanych wiórów lub materialów wlóknistych powleczonych klejem Jako pólproduktu w procesie wytwarzania plyt prasowanych PL
HU907668A HU213274B (en) 1989-11-28 1990-11-27 Apparatus for spraying glued fibrous material for producing fibre-plate or like that

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP89121955A EP0429699B1 (fr) 1989-11-28 1989-11-28 Dispositif pour la formation de nattes de fibres imprégnées d'un agent liant pour la fabrication de panneaux de fibres

Publications (2)

Publication Number Publication Date
EP0429699A1 EP0429699A1 (fr) 1991-06-05
EP0429699B1 true EP0429699B1 (fr) 1995-01-25

Family

ID=8202172

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89121955A Expired - Lifetime EP0429699B1 (fr) 1989-11-28 1989-11-28 Dispositif pour la formation de nattes de fibres imprégnées d'un agent liant pour la fabrication de panneaux de fibres

Country Status (5)

Country Link
EP (1) EP0429699B1 (fr)
AT (1) ATE117620T1 (fr)
DE (1) DE58908950D1 (fr)
HU (1) HU213274B (fr)
PL (1) PL164093B1 (fr)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1048013B (de) * 1957-07-26 1958-12-31 Draiswerke Ges Mit Beschraenkt Verfahren und Vorrichtung zur kontinuierlichen Beleimung bzw. Befeuchtung von span- und faserartigen Stoffen
DE2009199B2 (de) * 1970-02-27 1973-01-25 Mit windsichtung arbeitende vorrichtung zur streuung eines vlieses aus beleimten spaenen pflanzlicher herkunft mit grossem feingutanteil

Also Published As

Publication number Publication date
HU213274B (en) 1997-04-28
PL164093B1 (pl) 1994-06-30
ATE117620T1 (de) 1995-02-15
EP0429699A1 (fr) 1991-06-05
HU907668D0 (en) 1991-06-28
HUT57120A (en) 1991-11-28
DE58908950D1 (de) 1995-03-09
PL287935A1 (en) 1991-07-15

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