EP2101970B1 - Installation pour encoller des fibres pour la production de panneaux de fibres - Google Patents

Installation pour encoller des fibres pour la production de panneaux de fibres Download PDF

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Publication number
EP2101970B1
EP2101970B1 EP07819382.8A EP07819382A EP2101970B1 EP 2101970 B1 EP2101970 B1 EP 2101970B1 EP 07819382 A EP07819382 A EP 07819382A EP 2101970 B1 EP2101970 B1 EP 2101970B1
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EP
European Patent Office
Prior art keywords
spray nozzles
plant
accordance
chute
glueing
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.)
Active
Application number
EP07819382.8A
Other languages
German (de)
English (en)
Other versions
EP2101970A1 (fr
Inventor
Dieter Aengenvoort
Michael SCHÖLER
Klaus Schürmann
Lothar Sebastian
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.)
Siempelkamp Maschinen und Anlagenbau GmbH and Co KG
Original Assignee
Siempelkamp Maschinen und Anlagenbau GmbH and Co KG
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 Siempelkamp Maschinen und Anlagenbau GmbH and Co KG filed Critical Siempelkamp Maschinen und Anlagenbau GmbH and Co KG
Publication of EP2101970A1 publication Critical patent/EP2101970A1/fr
Application granted granted Critical
Publication of EP2101970B1 publication Critical patent/EP2101970B1/fr
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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
    • B27N1/0227—Mixing the material with binding agent using rotating stirrers, e.g. the agent being fed through the shaft of the stirrer
    • B27N1/0254—Mixing the material with binding agent using rotating stirrers, e.g. the agent being fed through the shaft of the stirrer with means for spraying the agent on the material before it is introduced in the mixer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/70—Spray-mixers, e.g. for mixing intersecting sheets of material
    • B01F25/72—Spray-mixers, e.g. for mixing intersecting sheets of material with nozzles
    • B01F25/721—Spray-mixers, e.g. for mixing intersecting sheets of material with nozzles for spraying a fluid on falling particles or on a liquid curtain
    • 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
    • B27N1/0263—Mixing the material with binding agent by spraying the agent on the falling material, e.g. with the material sliding along an inclined surface, using rotating elements or nozzles
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/17—Surface bonding means and/or assemblymeans with work feeding or handling means
    • Y10T156/1798—Surface bonding means and/or assemblymeans with work feeding or handling means with liquid adhesive or adhesive activator applying means

Definitions

  • the invention relates to a system according to claim 1 for gluing fibers for the production of fiberboard, especially MDF boards or the like wood-based panels, with a Faserzu slaughter founded with at least one acted upon with conveying air for the fiber transport fiber feed line, which z. B. an arcuate Faserumlenk ein opens into a fiber outlet tube, with a downstream of the fiber outlet tube chute, with a z. B. arranged between the fiber outlet tube and the chute gluing device with spray nozzles for spraying emerging from the fiber outlet tube and entering the chute fibers with glue drops and with a chute downstream collecting device with a transport device for collecting and optionally discharging the fibers and a suction device for suction Air from the chute through the conveyor belt.
  • the transport device is preferably as an air-permeable conveyor belt, z. B. screen belt, is formed, wherein the suction device is arranged below the conveyor belt. Furthermore, a jacket air supply device is preferably provided below the gluing device and consequently in the upper region of the chute with one or more jacket air ducts for generating a jacket air flow surrounding the fiber flow in the chute.
  • a pneumatic supply of the fibers which enter from the usually vertically arranged fiber outlet tube in the region of the gluing device. There they are treated by means of the spray nozzles with glue drops.
  • MDF boards means medium density fiber boards.
  • Beleimen for fiber for the production of fiberboard of the type described above are for example from the DE 102 47 412 A1 . DE 102 47 413 A1 . DE 102 47 414 A1 and DE 10 2004 001 527 A1 known.
  • the spray nozzles are arranged on at least one nozzle ring surrounding the fiber stream emerging from the fiber outlet pipe or they form a nozzle ring surrounded by the fiber stream.
  • the angle of attack of the spray nozzles against the fiber flow and / or the distance of the spray nozzles from the fiber flow is adjustable.
  • the spray nozzles can be changed in position, z. B. slidably disposed on the nozzle ring.
  • the known system allows an adjustment of the spray nozzle position to the requirements.
  • the extent known measures have proven in principle, but they are capable of further development.
  • the invention has for its object to provide a system of the type described above, with which fibers for the production of fiberboard MDF boards in particular can gleam properly in a rational and economical manner. In particular, soiling of the system should be avoided and proper operation guaranteed.
  • the invention teaches in a generic system for gluing fibers for the production of fibreboard of the embodiment described above, that the spray nozzles or at least some of the spray nozzles from a waiting position in a working position for gluing the fibers are convertible and vice versa.
  • the spray nozzles (or some of the spray nozzles) are preferably attached to pivot levers and can be pivoted with these pivoting levers from the waiting position into the working position and swung out of the working position into the waiting position.
  • the invention is based on the recognition that a perfect gluing is guaranteed and, above all, soiling and system dysfunctions can be reliably avoided if it is ensured that the spray nozzles are not "permanently” arranged in the gluing area, but the possibility exists of the spray nozzles only if necessary in the Beleimungs Scheme and consequently in the working position.
  • the possibility that the spray nozzles are usually positioned as the starting position in their waiting position and are only pivoted into the working position, when actually fibers from the fiber outlet tube enter the chute and thus must be glued. If, for structural reasons, the risk exists that outside the gluing operation glue from the nozzles penetrates, z. B.
  • the invention ensures that such unwanted glue drops do not enter the Beleimungs Championship and in particular not in the chute or on the downstream conveyor belt, but can be collected outside the actual Beleimungs Kunststoffes. Moreover, the arrangement of the spray nozzles in a waiting position that easy and proper maintenance or repair of the nozzles is possible because they can be moved out of the work area in a simple manner and thus easily accessible for repair or maintenance.
  • the invention proposes that each spray nozzle is fastened individually to a pivoting lever, wherein the individual pivoting levers can be pivoted in and out individually or together or in groups.
  • a plurality of spray nozzles are arranged on the nozzle ring, z. B. 10 to 20 spray nozzles.
  • the arrangement is preferably made so that, taking into account the spray characteristics of the spray nozzles, a complete spraying over the entire circumference takes place, with excessive overlaps of the individual sprays to be avoided.
  • the invention proposes that the pivot levers are pivotable by means of rotary actuators, preferably each individual pivot lever is associated with a separate pivot drive, it is expedient if each individual pivot drive is controlled separately.
  • These part-turn actuators can be used as pneumatic or hydraulic drives, eg. B. be designed as linear actuators, which are connected to the rotatably mounted pivoting lever.
  • the pivot levers each have at least one pivot arm and at least one articulation arm.
  • the pivot lever may be formed as a substantially L-shaped pivot lever.
  • the part-turn actuators, z As the pneumatic linear actuators or pneumatic cylinder piston assemblies can be suspended even pivotally or movably on a corresponding frame.
  • the spray nozzles are associated with one or more drip pans, which are arranged in the waiting position below the respective spray nozzle. It may be appropriate, every single spray nozzle its own Assign catch tray, but it can also be provided drip pans for multiple spray nozzles. In any case, there is no possibility to collect the glue leaving the spray nozzles outside of the gluing operation in the drip pans and to remove it and if necessary to reuse it. In this way, contamination of the system are particularly reliably avoided. In addition, a particularly high Leimaus beat done.
  • the invention proposes that the spray nozzles are connected to a control device which pivots the spray nozzles in the glueing operation from the waiting position to the working position and (automatically) swings out of the working position in the waiting position when interrupting the gluing operation.
  • a control device which pivots the spray nozzles in the glueing operation from the waiting position to the working position and (automatically) swings out of the working position in the waiting position when interrupting the gluing operation.
  • at least one fiber sensor detecting the gluing operation can be connected to the control device, which is arranged in the region of the fibers entering the chute from the fiber outlet tube.
  • This fiber sensor can be designed as an optical sensor.
  • the invention is based on the recognition that it is expedient to first hold the spray nozzles in the waiting position and only to permit pivoting into the working position, even if fibers from the fiber outlet tube actually enter the chute through the gluing area.
  • a corresponding signal for the control device, which indicates the gluing operation can in principle be tapped from
  • the spray nozzles are formed in a conventional manner as two-fluid nozzles and connected to a glue supply line and to a first compressed air line for the atomizing air.
  • the spray nozzles at least have a movably guided cleaning pin, which is preferably guided movably within the outlet opening of the nozzle, so that by actuation of this pin, a clogging of the nozzle opening can be prevented or additions can be broken.
  • a second compressed air line is provided at the nozzle, which supplies control air for this cleaning pen.
  • a plant for gluing fibers 1 for the production of fiberboard, in particular MDF boards is shown.
  • the system is set up for continuous operation and has a fiber feed device 2 with a fiber feed line 3 which can be charged with conveying air F for fiber transport and which opens into a fiber outlet tube 5 via an arcuate fiber deflection line 4.
  • a chute 6 is provided, which is downstream of the fiber outlet pipe 5.
  • a gluing device 7 with a plurality of spray nozzles 8 for spraying the emerging from the fiber outlet tube 5 and entering the chute 6 fibers 1 arranged with glue drops.
  • 16 spray nozzles are provided, which form a nozzle ring surrounding the fiber stream.
  • the chute 6 is a collecting device 9 with a transport device 10 for collecting and optionally discharging the fibers 1 and a suction device 11 for sucking air from the chute 6 are arranged.
  • the transport device 10 is an air-permeable conveyor belt, z. B. screen belt 10 is formed.
  • the suction device 11 is arranged below the conveyor belt 10 so that it sucks the air out of the chute 6 through the conveyor belt 10.
  • the fibers are for gluing means of conveying air F or transport air on the substantially vertically arranged straight fiber feed line 3 and the adjoining arcuate Faserumlenktechnisch 4 and finally on the fiber outlet tube 5, which is also formed substantially perpendicular and straight, in the Beleimungs Scheme between Fiber outlet pipe 5 and chute 6 blown.
  • the glued by means of gluing device 7 fibers then fall through the chute 6 on the conveyor belt 10 and are discharged with this.
  • the chute 6 has a downwardly widening cross section.
  • a jacket air feed device 12 is provided below the glueing device 7, wherein this sleeve air feed device 12 generates a plurality of fan air ducts 13 for generating a fan air flow M surrounding the fiber flow in the chute. Consequently, by means of the suction device 11, both the conveying air F and the jacket air M as well as any ambient air U entering or entering the chute 6 are extracted.
  • the spray nozzles 8 can be transferred from a waiting position into a working position for gluing the fibers and vice versa.
  • Each spray nozzle is on one Pivoting lever 14 attached. With these pivoting levers 14, the spray nozzle 8 can be pivoted from the waiting position into the working position and swung out of the working position into the waiting position.
  • the spray nozzles 8 with their pivot levers 14 in the working position.
  • the waiting position is dash-dotted only indicated.
  • Each spray nozzle 8 is individually attached to a separate pivot lever 14, wherein the individual pivot lever 14 individually or jointly and are swinging out. Further shows in particular Fig.
  • rotary actuators 15 are designed as pneumatic linear actuators, namely pneumatic cylinder piston assemblies, which are connected to the rotatably mounted pivot lever 14.
  • rotary drives can be connected to the pivot lever 14.
  • a linear drives and a spindle drive or the like could be used.
  • Each pivot lever 14 has, on the one hand, a pivot arm 14a and, on the other hand, a pivot arm 14b. At the pivot arm 14a the spray nozzles 8 are connected end.
  • the pneumatic cylinder piston arrangements are connected to the articulated arms 14b as drives 15, the pivoting levers 14 consequently having a substantially L-shaped form.
  • the pneumatic linear drives 15 are hinged on the one hand to the pivot lever 14, namely to the pivot arm 14b and on the other hand to a suspension 16 on a frame or housing 17 pivotally.
  • each spray nozzle 8 is associated with a collecting trough 18, which is arranged in the waiting position below the respective spray nozzle 8.
  • a control device which is connected to the spray nozzles or the rotary actuators 15, wherein said control device swings the spray nozzles 8 in Beleimungs peaceful from the waiting position to the working position and the interruption of the Beleimungs horres automatically pivots from the working position to the waiting position. Furthermore, this control device can control the spray nozzles 8 themselves and consequently the glue outlet. It is provided that the control device pivots the spray nozzles 8 exclusively during the gluing operation in the working position. In this way, in particular contamination of the system is avoided, since possibly dripping glue outside the operating times can not penetrate into the chute 6, but is collected in the waiting position of the drip pans 18.
  • a fiber sensor 19 is arranged, which z. B. may be formed as an optical sensor and generates a signal that depends on whether fibers 1 exit from the fiber outlet tube 5 or not.
  • This fiber sensor 19 is also connected to the control device.
  • the spray nozzles 8 are formed as two-fluid nozzles and to a glue supply line 20 and a first compressed air supply line 21 is connected, which supplies the atomizing air.
  • the spray nozzles 8 also have a non-illustrated, movably guided cleaning pin with which the nozzle opening 23 of the spray nozzle can be cleaned or avoids soiling.
  • a second compressed air line 22 is provided, which supplies control air for the cleaning pen.
  • the figures show that the shell air M is introduced via a throttle ring construction with adjustable throttle ring 24 and a shell air deflection in the chute.
  • an inner shell ring 25 is disposed within the chute 6, which is connected to form a sharp edge K to a bottom plate or a bottom ring 26 of the gluing space.
  • Sharp edge means in the context of the invention in particular a non-rounded edge with an edge angle ⁇ between shell ring 25 and bottom ring 26 with ⁇ ⁇ 120 °, preferably ⁇ ⁇ 90 °.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Claims (12)

  1. Installation destiné au collage de fibres (1) pour la fabrication de panneaux de fibres, en particulier de panneaux MDF ou de panneaux de matériau à base de bois similaires, comprenant un dispositif d'alimentation en fibres (2) avec au moins une ligne d'amenée de fibres (3) pouvant être alimentée en air de transport (F) pour le transport des fibres, laquelle débouche dans un tube de sortie des fibres (5) via par exemple une ligne de déviation des fibres (4) coudée,
    comprenant une goulotte d'évacuation (6) en aval du tube de sortie des fibres (5),
    comprenant un dispositif de collage (7) avec des buses de pulvérisation (8) pour pulvériser les fibres sortant du tube de sortie des fibres (5) et entrant dans la goulotte d'évacuation (6) avec des gouttes de colle et
    comprenant un dispositif de collecte (9) en aval de la goulotte d'évacuation (6) avec un dispositif de transport (10) pour collecter et le cas échéant évacuer les fibres, et un dispositif d'aspiration (11) pour aspirer l'air hors de la goulotte d'évacuation à travers le dispositif de transport, caractérisée en ce que
    les buses de pulvérisation (8) ou au moins quelques-unes des buses de pulvérisation (8) peuvent passer d'une position d'attente à une position de travail pour coller les fibres en fonction collage et peuvent passer de la position de travail à la position d'attente à l'interruption de la fonction collage.
  2. Installation selon la revendication 1, caractérisée en ce que les buses de pulvérisation (8) ou quelques-unes des buses de pulvérisation (8) sont fixées sur des leviers pivotants (14) et peuvent, avec ces leviers pivotants (14), basculer de la position d'attente à la position de travail ainsi que de la position de travail à la position d'attente.
  3. Installation selon la revendication 2, caractérisée en ce que chaque buse de pulvérisation (8) est fixée individuellement sur un levier pivotant (14), sachant que les différents leviers pivotants (14) peuvent être rentrés et sortis par pivotement individuellement, respectivement, en groupes.
  4. Installation selon la revendication 2 ou 3, caractérisée en ce que les leviers pivotants (14) peuvent être rentrés et sortis par pivotement avec des entraînements pivotants (15).
  5. Installation selon la revendication 4, caractérisée en ce que les entraînements pivotants (15) sont conçus en tant qu'entraînements pneumatiques ou hydrauliques qui sont raccordés aux leviers pivotants (14) positionnés en pouvant tourner.
  6. Installation selon la revendication 5, caractérisée en ce que les leviers pivotants (14) présentent respectivement au moins un bras pivotant (14a) sur lequel les buses de pulvérisation (8) sont disposées, et présentent au moins un bras articulé (14b) sur lequel l'entraînement pivotant (15) est raccordé.
  7. Installation selon l'une des revendications 1 à 6, caractérisée en ce que les buses de pulvérisation (8) sont attribuées à une ou plusieurs cuve(s) de collecte (18) qui est/sont disposé(e)s en-dessous de la buse de pulvérisation (8) respective dans la position d'attente.
  8. Installation selon l'une des revendications 1 à 7, caractérisée en ce que les buses de pulvérisation (8) sont reliées à un dispositif de commande qui bascule les buses de pulvérisation (8) de la position d'attente à la position de travail en fonction collage et les bascule de la position de travail à la position d'attente à l'interruption de la fonction collage.
  9. Installation selon la revendication 8, caractérisée en ce qu'au moins un capteur de fibres (19) détectant la fonction collage est raccordé au dispositif de commande.
  10. Installation selon la revendication 9, caractérisée en ce que le capteur de fibres (19) est conçu en tant que capteur optique.
  11. Installation selon l'une des revendications 1 à 10, dans laquelle les buses de pulvérisation (8) sont reliées en tant que buses bi-matière à une ligne d'amenée de colle (20) et à une première ligne d'air comprimé (21) pour l'air vaporisé, caractérisée en ce que les buses de pulvérisation (8) présentent au moins une tige de nettoyage (23) dirigée de façon mobile, laquelle reçoit de l'air de commande par une seconde ligne d'air comprimé (22).
  12. Installation selon l'une des revendications 1 à 11, caractérisée en ce que le dispositif de collage (7) est disposé entre le tube de sortie des fibres (5) et la goulotte d'évacuation (6).
EP07819382.8A 2006-12-13 2007-10-27 Installation pour encoller des fibres pour la production de panneaux de fibres Active EP2101970B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006058625A DE102006058625B3 (de) 2006-12-13 2006-12-13 Anlage zum Beleimen von Fasern für die Herstellung von Faserplatten
PCT/EP2007/009339 WO2008071260A1 (fr) 2006-12-13 2007-10-27 Installation pour encoller des fibres pour la production de panneaux de fibres

Publications (2)

Publication Number Publication Date
EP2101970A1 EP2101970A1 (fr) 2009-09-23
EP2101970B1 true EP2101970B1 (fr) 2015-03-11

Family

ID=39081789

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07819382.8A Active EP2101970B1 (fr) 2006-12-13 2007-10-27 Installation pour encoller des fibres pour la production de panneaux de fibres

Country Status (6)

Country Link
US (1) US7942180B2 (fr)
EP (1) EP2101970B1 (fr)
CN (1) CN101522379B (fr)
CA (1) CA2669628C (fr)
DE (1) DE102006058625B3 (fr)
WO (1) WO2008071260A1 (fr)

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DE102004001527B4 (de) * 2004-01-10 2006-02-16 Büttner Gesellschaft für Trocknungs- und Umwelttechnik mbH Anlage und Verfahren zum Beleimen von Fasern für die Herstellung von Faserplatten, insbesondere MDF-Platten u. dgl. Holzwerkstoffplatten
CN2767098Y (zh) * 2005-01-26 2006-03-29 东北林业大学 人造板并行在线调施胶控制装置
CN2846076Y (zh) * 2005-12-22 2006-12-13 陕西科技大学 一种纸质中密度纤维板施胶装置

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DE102006058625B3 (de) 2008-06-05
CN101522379A (zh) 2009-09-02
US20100065218A1 (en) 2010-03-18
CA2669628A1 (fr) 2008-06-19
CN101522379B (zh) 2011-04-27
US7942180B2 (en) 2011-05-17
EP2101970A1 (fr) 2009-09-23
CA2669628C (fr) 2015-02-10
WO2008071260A1 (fr) 2008-06-19

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