EP0805008A1 - Dispositif de collage pour installations de fabrication de plaques composites en bois, et installation l'utilisant - Google Patents

Dispositif de collage pour installations de fabrication de plaques composites en bois, et installation l'utilisant Download PDF

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Publication number
EP0805008A1
EP0805008A1 EP97106328A EP97106328A EP0805008A1 EP 0805008 A1 EP0805008 A1 EP 0805008A1 EP 97106328 A EP97106328 A EP 97106328A EP 97106328 A EP97106328 A EP 97106328A EP 0805008 A1 EP0805008 A1 EP 0805008A1
Authority
EP
European Patent Office
Prior art keywords
gluing
cylindrical shell
gluing unit
wood
machine
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.)
Withdrawn
Application number
EP97106328A
Other languages
German (de)
English (en)
Inventor
Luigi Frati
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.)
Costruzioni Meccaniche Pomponesco CMP SpA
Original Assignee
Costruzioni Meccaniche Pomponesco CMP SpA
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 Costruzioni Meccaniche Pomponesco CMP SpA filed Critical Costruzioni Meccaniche Pomponesco CMP SpA
Publication of EP0805008A1 publication Critical patent/EP0805008A1/fr
Withdrawn legal-status Critical Current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
    • B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G11/00—Applying adhesives or glue to surfaces of wood to be joined
    • 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
    • B27N1/0236—Mixing the material with binding agent using rotating stirrers, e.g. the agent being fed through the shaft of the stirrer with the stirrers rotating about an horizontal axis, e.g. in consecutive casings
    • B27N1/0245—Mixing the material with binding agent using rotating stirrers, e.g. the agent being fed through the shaft of the stirrer with the stirrers rotating about an horizontal axis, e.g. in consecutive casings with a single stirrer shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
    • B01F27/62—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis comprising liquid feeding, e.g. spraying means
    • 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
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
    • E04C2/12—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of solid wood
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
    • E04C2/16—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of fibres, chips, vegetable stems, or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/11—Stirrers characterised by the configuration of the stirrers
    • B01F27/112—Stirrers characterised by the configuration of the stirrers with arms, paddles, vanes or blades

Definitions

  • This invention relates to a gluing unit usable in production plants for wood-based panels, ie fibreboard and chipboard panels.
  • chipboard production plants comprise a gluing machine provided with a cylindrical shell of substantially horizontal axis, at one end of which the wood chips are fed tangentially by gravity through an upper entry opening.
  • a number of liquid glue feed nozzles arranged in the upper part of the cylindrical shell and offset from the vertical plane passing through the shell axis, these nozzles being distributed along a generating line of the shell and facing tangentially inwards.
  • a rotary shaft carrying radial paddles distributed along it to mix the mass of chips passing through the shell with the liquid glue sprayed by said nozzles.
  • a lower exit opening which enables the mass of chips and liquid glue to be removed by gravity for subsequent operations. At this exit a discharge adjustment device can be provided.
  • fibreboard production plants comprise a gluing machine also provided with a cylindrical shell of substantially horizontal axis, to one end of which the wood fibres are fed tangentially through an upper entry opening, entrained by a stream of low pressure air.
  • the liquid glue is fed at the head of the machine close to the fibre entry opening, and is effected by nozzles positioned on the head itself and directed parallel to the axis of the cylindrical shell.
  • This machine is also provided with a coaxial rotary shaft carrying radial paddles to mix together the wood fibre mass and liquid glue passing through the shell transported by the air stream, to then leave from the exit opening located at the other end of the shell.
  • a discharge adjustment device can be provided at the exit opening.
  • An object of the present invention is to provide a gluing unit which can be used both in wood fibreboard production plants and in chipboard production plants.
  • a further object of the invention is to provide a gluing unit for fibreboard or chipboard production plants by which a decidedly better, ie more uniform, glue distribution is obtained within the wood mass than that obtainable with the known gluing machines briefly described heretofore.
  • the gluing unit comprising a gluing machine provided with a cylindrical shell of substantially horizontal axis, at one end of which there is provided an entry opening through which the wood fibres or chips are fed, at the other end there being provided an exit opening for the wood mass sprayed with liquid glue; within the cylindrical shell there being provided a mixing means for the wood chip or fibre mass passing through the cylindrical shell, the machine also comprising spray nozzles for spraying liquid glue onto the wood mass passing through the cylindrical shell, characterised in that said nozzles are distributed along the entire or a large part of the length of the cylindrical shell.
  • liquid glue spray nozzles can be positioned on the cylindrical shell and/or in its interior.
  • the gluing machine of such a gluing unit provided with nozzles distributed along the entire or a large part of the length of the cylindrical shell of the machine, can be used both if the wood mass consists of wood fibres and if it consists of chips, in both cases it providing results which, for equal quantities of liquid glue, are at least comparable to but usually better than those of relative known gluing machines, whether the mass of material within which the liquid glue is to be distributed is fed by gravity or pneumatically.
  • the gluing unit according to the present invention comprises several gluing machines of the aforesaid type arranged in cascade.
  • the total quantity of liquid glue to be sprayed onto the wood fibre or chip mass to be processed is therefore divided between the various gluing machines.
  • liquid glue distribution is better, for equal results it is possible to use less reactive glues, ie glues with a low free and hence evolvable formaldehyde content, with a consequent lesser environmental impact.
  • the gluing unit 10 is composed of a single gluing machine having an overall cylindrical shell 12. This latter has an entry opening 14 at the top of the left end (with reference to Figure 1) of the machine 10, this opening being shaped in such a manner as to tangentially introduce the wood fibres or chips into the shell 12. This latter has an exit opening 16 at the bottom of its right end.
  • the machine 10 is provided with a rotary shaft 18 coaxial to the shell 12, its ends projecting from the relative heads 20 and 22 through corresponding holes to be rotatably supported by respective supports 24 and 26.
  • the shaft 18 is rotated (in the direction indicated in Figure 1 by the arrow A) by an electric motor (not shown) and carries a series of radial paddles 28, the function of which is described hereinafter.
  • the modified gluing machine 10' shown in Figure 3 differs from that of Figure 1 only in that the spray nozzles 30' are arranged on the mixing shaft 18', this latter being hollow to enable it and hence the nozzles 30' to be fed with liquid glue through its appropriately arranged right end.
  • the further modified gluing machine 10'' shown in Figure 4 differs from the preceding in that the mixing means consists of two consecutive aligned shafts 18A and 18B, and in that the spray nozzles are positioned both on the cylindrical shell 12 (the nozzles 30) and in the interior of this latter (the nozzles 30' positioned on the two shafts 18A and 18B).
  • the shaft 18A passes through the head 20 and the shaft 18B passes through the head 22, each being driven by a relative motor (not shown).
  • the two shafts are hollow to enable the nozzles 30' to be fed, and can rotate in either the same or opposite directions (as indicated in Figure 4 by the arrows A and B).
  • the nozzles can be fed not only with liquid glue, but also with other known liquid components, to be added to the glue or to be fed independently by separate nozzles.
  • Wood fibres or chips are fed through the entry opening 14 to the machine 10 (as indicated by the arrow B of Figure 1) by gravity and/or with the aid of a light air stream (low pressure pneumatic transport).
  • this feed is mixed and made to advance within the shell 12, while being simultaneously struck during the entire or a large part of its travel within the shell 12 by the liquid glue sprayed by the nozzles 30, to finally leave from the exit opening 16 (as indicated by the arrow C of Figure 1).
  • a fibre or chip mass with an optimum distribution of liquid glue therein is obtained at the exit opening.
  • the gluing unit can be composed of several gluing machines similar to those heretofore described and arranged in cascade, in the sense that the wood fibre or chip mass leaving the exit opening of one machine is fed to the entry opening of the gluing machine positioned downstream of the preceding. Consequently the total quantity of liquid glue is distributed between the gluing machines of one and the same gluing unit. It has been found that even better results (ie an even more uniform liquid glue distribution) are obtained if in a gluing unit composed of several gluing machines, the mixing shaft of one gluing machine rotates in the opposite direction to the mixing shaft of the immediately upstream and/or immediately downstream machine.
  • the glue can be fed, metered and sprayed to one or more machines by using one or more pumping units.
  • Figures 5 and 9 show a gluing unit 40 composed of four gluing machines 40A, 40B, 40C and 40D similar to that of Figure 3 or 4 and arranged in cascade.
  • the wood fibres or chips are fed through the entry opening 54 and leave, mixed with the glue, from the exit opening 56.
  • the relative mixing shafts (not shown for simplicity) can rotate in the same or, better still, different directions (as indicated by the arrows of Figure 5).
  • Figure 6 shows a further example of a gluing unit 50 formed again from four gluing machines 50A, 50B, 50C and 50D of the aforesaid type, again arranged in cascade but with a different plan configuration than that of Figure 5.
  • the number and arrangement of the gluing machines (60A, 60B, 60C, 60D and 60E) are again different, there being five machines arranged in a meandering configuration.
  • Figure 8 shows a gluing unit 70 formed from three machines 70A, 70B and 70C arranged in a roughly triangular configuration.
  • the choice of the configuration in which to arrange the constituent machines of a gluing unit is generally determined by the space available in the plant of which the unit forms part.
  • the final result is that, by virtue of the gluing unit of the present invention, with a plant for producing wood fibreboard panels or a plant for producing chipboard panels, the panels obtained are of decidedly better quality than those obtainable from plants using known gluing machines, and in particular panels free from lumps or stains, in addition to possessing excellent mechanical and technical characteristics; or alternatively, for the same result, a significant saving in liquid glue can be obtained or less reactive glues can be used, ie of low formaldehyde content and hence of lesser environmental impact.
  • a plant for producing wood-based panels can also comprise several gluing units in parallel, each unit consisting of several gluing machines in cascade.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Forests & Forestry (AREA)
  • Civil Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Structural Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Chemical & Material Sciences (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Coating Apparatus (AREA)
  • Panels For Use In Building Construction (AREA)
EP97106328A 1996-05-02 1997-04-17 Dispositif de collage pour installations de fabrication de plaques composites en bois, et installation l'utilisant Withdrawn EP0805008A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT96MI000862A IT1282399B1 (it) 1996-05-02 1996-05-02 Unita'incollatrice per impianti di produzione di pannelli a base di legno,nonche' impianto utilizzante tale unita' incollatrice
ITMI960862 1996-05-02

Publications (1)

Publication Number Publication Date
EP0805008A1 true EP0805008A1 (fr) 1997-11-05

Family

ID=11374184

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97106328A Withdrawn EP0805008A1 (fr) 1996-05-02 1997-04-17 Dispositif de collage pour installations de fabrication de plaques composites en bois, et installation l'utilisant

Country Status (5)

Country Link
EP (1) EP0805008A1 (fr)
KR (1) KR970073913A (fr)
CA (1) CA2204175A1 (fr)
IT (1) IT1282399B1 (fr)
TR (1) TR199700331A2 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1018415A1 (fr) * 1999-01-07 2000-07-12 C.M.P. Costruzioni Meccaniche Pomponesco S.p.A. Machine verticale à mélanger pour la fabrication de panneaux de particules
EP2347874A1 (fr) * 2010-01-22 2011-07-27 Kronotec AG Procédé et dispositif de mélange d'un mélange de particules avec une colle
WO2012167991A1 (fr) * 2011-06-07 2012-12-13 Fritz Egger Gmbh & Co. Og Dispositif et procédé d'humidification de particules de bois
CN103189171A (zh) * 2010-10-01 2013-07-03 克洛诺普鲁斯技术股份公司 用于粘结木材颗粒的方法和装置
WO2017216140A3 (fr) * 2016-06-14 2018-03-15 Interbran Systems Ag Mélangeur
CN108356952A (zh) * 2017-12-27 2018-08-03 合肥市硕理机电科技有限公司 一种碎木搅拌压块装置
IT201800002264A1 (it) * 2018-01-31 2019-07-31 Fava S P A Macchina impastatrice ad alta velocità, adatta in particolare alla miscelazione di impasto di sfarinati con acqua/liquidi per la produzione del formato couscous e pasta alimentare.

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109849426B (zh) * 2019-01-09 2020-08-07 中科国兴（绵阳）科技有限公司 一种纸箱模压生产系统及生产工艺

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB759009A (en) * 1954-05-08 1956-10-10 Draiswerke Gmbh Improved mixing apparatus
DE1104164B (de) * 1956-11-16 1961-04-06 Max Himmelheber Dipl Ing Vorrichtung an Beleimungsmischern fuer die abgestufte Beleimung von Span- und aehnlichen, fuer die Herstellung von Spanwerk-stoffen dienenden Gutgemischen
GB961410A (en) * 1961-04-15 1964-06-24 Draiswerke Gmbh Improvements relating to continuously operating glueing machines
DE1228402B (de) * 1965-12-18 1966-11-10 Max Himmelheber Dipl Ing Holzfaserstoffbeleimungsmaschine
US3924835A (en) * 1972-10-28 1975-12-09 Dierks & Soehne Mixer for particulate materials
DE2653711A1 (de) * 1976-11-26 1978-06-01 Draiswerke Gmbh Vorrichtung zum kontinuierlichen beleimen von holzspaenen
DE2738971A1 (de) * 1977-08-30 1979-03-22 Draiswerke Gmbh Verfahren und vorrichtung zum beleimen von holzspaenen

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB759009A (en) * 1954-05-08 1956-10-10 Draiswerke Gmbh Improved mixing apparatus
DE1104164B (de) * 1956-11-16 1961-04-06 Max Himmelheber Dipl Ing Vorrichtung an Beleimungsmischern fuer die abgestufte Beleimung von Span- und aehnlichen, fuer die Herstellung von Spanwerk-stoffen dienenden Gutgemischen
GB961410A (en) * 1961-04-15 1964-06-24 Draiswerke Gmbh Improvements relating to continuously operating glueing machines
DE1228402B (de) * 1965-12-18 1966-11-10 Max Himmelheber Dipl Ing Holzfaserstoffbeleimungsmaschine
US3924835A (en) * 1972-10-28 1975-12-09 Dierks & Soehne Mixer for particulate materials
DE2653711A1 (de) * 1976-11-26 1978-06-01 Draiswerke Gmbh Vorrichtung zum kontinuierlichen beleimen von holzspaenen
DE2738971A1 (de) * 1977-08-30 1979-03-22 Draiswerke Gmbh Verfahren und vorrichtung zum beleimen von holzspaenen

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1018415A1 (fr) * 1999-01-07 2000-07-12 C.M.P. Costruzioni Meccaniche Pomponesco S.p.A. Machine verticale à mélanger pour la fabrication de panneaux de particules
EP2347874A1 (fr) * 2010-01-22 2011-07-27 Kronotec AG Procédé et dispositif de mélange d'un mélange de particules avec une colle
CN103189171A (zh) * 2010-10-01 2013-07-03 克洛诺普鲁斯技术股份公司 用于粘结木材颗粒的方法和装置
CN103189171B (zh) * 2010-10-01 2016-06-15 克洛诺普鲁斯技术股份公司 用于粘结木材颗粒的方法和装置
WO2012167991A1 (fr) * 2011-06-07 2012-12-13 Fritz Egger Gmbh & Co. Og Dispositif et procédé d'humidification de particules de bois
WO2017216140A3 (fr) * 2016-06-14 2018-03-15 Interbran Systems Ag Mélangeur
CN108356952A (zh) * 2017-12-27 2018-08-03 合肥市硕理机电科技有限公司 一种碎木搅拌压块装置
IT201800002264A1 (it) * 2018-01-31 2019-07-31 Fava S P A Macchina impastatrice ad alta velocità, adatta in particolare alla miscelazione di impasto di sfarinati con acqua/liquidi per la produzione del formato couscous e pasta alimentare.

Also Published As

Publication number Publication date
TR199700331A2 (xx) 1997-11-21
KR970073913A (ko) 1997-12-10
ITMI960862A1 (it) 1997-11-02
IT1282399B1 (it) 1998-03-20
CA2204175A1 (fr) 1997-11-02
ITMI960862A0 (fr) 1996-05-02

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