EP0458806B1 - Verfahren und anlage zur herstellung von holzspanplatten und ähnlichen plattenwerkstoffen - Google Patents

Verfahren und anlage zur herstellung von holzspanplatten und ähnlichen plattenwerkstoffen Download PDF

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Publication number
EP0458806B1
EP0458806B1 EP90902252A EP90902252A EP0458806B1 EP 0458806 B1 EP0458806 B1 EP 0458806B1 EP 90902252 A EP90902252 A EP 90902252A EP 90902252 A EP90902252 A EP 90902252A EP 0458806 B1 EP0458806 B1 EP 0458806B1
Authority
EP
European Patent Office
Prior art keywords
edge
loose fill
web
heat
edge strip
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
EP90902252A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0458806A1 (de
Inventor
André VANDEN AVENNE
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.)
Eduard Kuesters Maschinenfabrik GmbH and Co KG
Original Assignee
Eduard Kuesters Maschinenfabrik 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 Eduard Kuesters Maschinenfabrik GmbH and Co KG filed Critical Eduard Kuesters Maschinenfabrik GmbH and Co KG
Publication of EP0458806A1 publication Critical patent/EP0458806A1/de
Application granted granted Critical
Publication of EP0458806B1 publication Critical patent/EP0458806B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B5/00—Presses characterised by the use of pressing means other than those mentioned in the preceding groups
    • B30B5/04—Presses characterised by the use of pressing means other than those mentioned in the preceding groups wherein the pressing means is in the form of an endless band
    • B30B5/06—Presses characterised by the use of pressing means other than those mentioned in the preceding groups wherein the pressing means is in the form of an endless band co-operating with another endless band
    • 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
    • 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
    • B27N3/18—Auxiliary operations, e.g. preheating, humidifying, cutting-off
    • B27N3/183—Forming the mat-edges, e.g. by cutting
    • 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
    • B27N3/24—Moulding or pressing characterised by using continuously acting presses having endless belts or chains moved within the compression zone

Definitions

  • the invention relates to a method of the type corresponding to the preamble of claim 1 and a corresponding system, as are known from DE-PS 23 55 797.
  • the form strips had no thermal contact with the support structure or the one from the edge DE-PS 23 55 797 known construction transferring the heat from the support structure to the form belts, the entire width of which rolls more so that the temperature of the form belts dropped considerably towards the edge.
  • the edge areas contracted lengthways and, since the wide central area of the forming tapes was at the working temperature, considerable thermal stresses developed. Such thermal stresses became critical in the area of the deflecting drums, because the thermal stresses were superimposed there with the stresses due to the considerable longitudinal tension of the forming tapes and the stresses due to their deflection due to the stretching of the outer fiber.
  • the invention has for its object to design a generic method and such a system so that a sufficient heat transfer of the form belts at the edge ensuring the same can be achieved on the roller chains with less equipment.
  • the webs that remain between the suctioned-off edge strip sections surprisingly hold the shaped tapes in their area in contact with the roller chains in such a way that sufficient heat transfer is ensured and the bowl-shaped deformation of the shaped tapes, which is caused by the uneven temperature distribution, is within acceptable limits in practice holds.
  • the formation of the form belts in the outer areas also prevents the caking of lubricant on the roller running surfaces there and maintains the lubrication of the rollers.
  • the actual spreading width used can be adapted to the plate width used, without the spreading machine having to be adjusted in its working width, which would be very expensive, and without having to saw off wide continuous edge strips of the finished plate.
  • the vacuumed edge strips should be "narrow". What is meant is that with a width of the panel web of approximately 2 m, the edge strip section can be, for example, 2 to 30 cm wide (claim 2).
  • the length of the webs in the longitudinal direction of the web can be about 2 to 20 cm (claim 3), it being recommended that this length is at most as long as the length of the edge strip sections that have been vacuumed off, because otherwise the simplification effect is not sufficiently noticeable.
  • the ratio of the length of the vacuumed edge strip sections to that of the webs can be approximately 3: 1 to 15: 1 (claim 4), the length of the vacuumed edge strip sections being in the range of approximately 30 to 100 cm (claim 5).
  • the apparatus aspect of the invention is the subject of claim 6.
  • a double belt press for the production of chipboard, fiberboard and other plate-shaped materials is shown, which consist of particles bound by means of a binder that cures under pressure and heat. It comprises an upper forming belt 1 made of sheet steel of approximately 1 to 1.5 mm in thickness and an equally lower forming belt 2. Between the forming belts 1, 2, a web 4 is compressed from a bed 4 'in a pressing section 3, which is made of a pourable material exists that results in one of the aforementioned materials after pressing.
  • the upper forming belt 1 runs around rollers or drums 5,6 arranged transversely to the web 4, of which the drum 6 can be pivoted in a fixed stand 7, the drum 5 in a support 8 on the floor about an axis running transversely to the web 4 Stand 9 is mounted.
  • the stand 9 is moved via the hydraulic cylinder 10 and the forming belt 1 is stretched in this way.
  • the forming belt 2 runs over drums 11, 12 arranged transversely to the web 4, of which the drum 11 is mounted in a fixed stand 13, the drum 12 in a stand 14 movable on rails is.
  • the stand 14 can be moved in the longitudinal direction of the web by hydraulic cylinders 15 and the forming belt 2 can be tensioned in this way.
  • the form belts are driven by the drums.
  • the shaping belts 1, 2 run through the device in the sense indicated by the arrows 16, so that the bed 4 ′ applied on the right-hand side according to FIG. 1 by means not shown is drawn into the pressing section 3.
  • the running compressed web 4 is removed in the left region of the forming belt 2 according to FIG. 1 by suitable devices, not shown.
  • an upper support structure 17 is provided in the inner region of the forming belt 1, which cooperates with a lower supporting structure 18 provided in the inner region of the lower forming belt 2.
  • the support structures 17, 18 support the areas of the shaping tapes 1, 2 facing the web 4 against the web and press them flatly against one another with great force.
  • the support structures 17, 18 each consist of individual supports 19, 20, which are arranged opposite one another above and below the forming belts 1, 2 and the web 4 (FIG. 2). Each pair of supports 19, 20 is clamped by lateral spindles 21 (FIG. 3), so that individual pressure members which are self-contained are formed.
  • Strong plates 26, 27 are located between the carriers 19, 20 and the shaping bands 1, 2, which transmit the force exerted by the individual carriers 19, 20 evenly to the shaping bands 1, 2 and contain the channels 40 (FIG. 4). in which heating elements are arranged or through which a heating medium is passed.
  • Roller chains 30 are arranged between the mutually facing sides of the plates 26, 27 and the shaping belts 1, 2, on which the shaping belts 1, 2 roll relative to the plates 26, 27 and which run endlessly in a vertical longitudinal plane around the plates 26, 27.
  • the rollers of the roller chains 30 transmit both the pressure and the heat of the plates 26, 27 to the shaping belts 1, 2 and thus the web 4 that forms.
  • roller chains 30 can either in the actual pressing area, i.e. between the carriers 19, 20 and the plates 26, 27 can be returned, as is indicated in FIG. 2 for the plates 26 and in FIG. 4.
  • This embodiment has the advantage that the roller chains 30 maintain their temperature substantially constant during circulation.
  • the plates 26, 27 are made up of a heating and support plate 43 and a return plate 44 separate therefrom with return grooves 42 for the roller chains 30. It is a partial cross section through an edge region located above the web 4 according to FIG. 2.
  • the plates 43 have the heating channels 40, which are connected to one another at the ends via pipe elbows 45 to form a closed conduit, and smooth running surfaces 41, which form the common rolling surfaces for the roller chains 30 arranged next to one another, which can be seen in FIG. 4.
  • roller chains 30 roll between them and the facing running surfaces 41 of the plates 43. Adjacent roller chains 30 lie directly opposite one another with their outer end faces.
  • a bed 33 of wood shavings or other suitable particles is then applied in the usual way, the width of which corresponds to the nominal working width 34 and is characterized by the position of the edge 31 in FIG. 4.
  • These wood chips or other particles are provided with binders, which is to be indicated in the drop area 39 in FIG. 2 by the dotted lines.
  • a suction device 50 is arranged in front of the inlet between the forming belts 1, 2, by means of the edge strips 38 (see FIG. 5) of the bed 33 which can be sucked off intermittently by corresponding actuation of the valve 51, so that the Bulk 33 is "notched" at the edge.
  • the length of the vacuumed edge strip sections 38 is denoted by 36 in FIG. 5 and its width from the edge 31 corresponding to the maximum working width to the edge 32 which represents the actual limitation of the respective working width.
  • Webs 37 remain between the vacuumed edge sections 38, in which the bed 33 up to the full working width 34, ie 4 and 5 stops up to the edge 31.
  • the length of the webs 37 in the longitudinal direction of the web 4 is designated 46.
  • the shaped strips 1, 2 are supported in the manner shown in FIG. 4 and pressed against the roller chains 30, 30.
  • the edge strip sections 38 which extend in the longitudinal direction of the web 4 between the webs 37, there is no chip material and there is no support.
  • the interrupted support in the toothed edge of the web 4 enables sufficient heat transfer in the edge zone.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
EP90902252A 1989-02-18 1990-02-09 Verfahren und anlage zur herstellung von holzspanplatten und ähnlichen plattenwerkstoffen Expired - Lifetime EP0458806B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3904982A DE3904982C1 (sv) 1989-02-18 1989-02-18
DE3904982 1989-02-18

Publications (2)

Publication Number Publication Date
EP0458806A1 EP0458806A1 (de) 1991-12-04
EP0458806B1 true EP0458806B1 (de) 1993-06-09

Family

ID=6374395

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90902252A Expired - Lifetime EP0458806B1 (de) 1989-02-18 1990-02-09 Verfahren und anlage zur herstellung von holzspanplatten und ähnlichen plattenwerkstoffen

Country Status (23)

Country Link
US (1) US5284609A (sv)
EP (1) EP0458806B1 (sv)
JP (1) JPH06102327B2 (sv)
CN (1) CN1014877B (sv)
AR (1) AR245028A1 (sv)
AT (1) ATE90263T1 (sv)
AU (1) AU616104B2 (sv)
BR (1) BR9006032A (sv)
CA (1) CA2010216C (sv)
CS (1) CS276676B6 (sv)
DD (1) DD297359A5 (sv)
DE (2) DE3904982C1 (sv)
DK (1) DK0458806T3 (sv)
ES (1) ES2020441A6 (sv)
FI (1) FI92297C (sv)
HR (1) HRP930918A2 (sv)
HU (1) HU205034B (sv)
MX (1) MX173742B (sv)
NO (1) NO910635D0 (sv)
PL (1) PL162881B1 (sv)
RU (1) RU1836209C (sv)
WO (1) WO1990009263A1 (sv)
YU (1) YU47643B (sv)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19622279A1 (de) * 1996-06-03 1997-12-04 Dieffenbacher Gmbh Maschf Verfahren zur Herstellung von Spanplatten
DE29800338U1 (de) * 1998-01-10 1999-05-20 Eduard Küsters Maschinenfabrik GmbH & Co. KG, 47805 Krefeld Doppelbandpresse
DE19856866C5 (de) * 1998-12-09 2010-09-23 Siempelkamp Maschinen- Und Anlagenbau Gmbh & Co. Kg Doppelbandpresse zur kontinuierlichen Herstellung von Plattenwerkstoffen
AU3032599A (en) * 1998-03-10 1999-09-27 Eduard Kusters Maschinenfabrik Gmbh & Co. Kg Method and double strap press for continuously producing materials in the form of plates
DE10124928A1 (de) * 2001-05-21 2002-12-05 Metso Paper Inc Doppelbandpresse
DE10228936A1 (de) * 2002-06-28 2004-01-22 Metso Paper Inc. Verfahren und Doppelbandpresse zur kontinuierlichen Herstellung von Plattenwerkstoffen
DE102014016867B3 (de) * 2014-11-14 2015-09-17 Siempelkamp Maschinen- Und Anlagenbau Gmbh Vorrichtung und Verfahren zur Behandlung von streufähigem Gut
PT3292995T (pt) * 2016-09-07 2022-05-24 SWISS KRONO Tec AG Prensa a quente para painéis à base de madeira e processo para operar uma prensa a quente para painéis à base de madeira
CN108582401B (zh) * 2018-03-15 2020-09-08 泗阳蓝阳托盘设备科技有限公司 植物纤维制品滚压机
CA3157151A1 (en) * 2019-10-18 2021-04-22 Valinge Innovation Ab A continuous press arrangement and a method for manufacture of building panels
CN112497416B (zh) * 2020-11-13 2022-03-18 新沂市大自然木业有限公司 一种纤维板热压成型设备及其工作方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1216531B (de) * 1958-03-22 1966-05-12 Ernst Baer Verfahren und Anlage zur Herstellung von Platten aus streufaehigen Holzspaenen oder aehnlichem Gut
DE1199974B (de) * 1963-09-07 1965-09-02 Baehre Metallwerk K G Vorrichtung zur Queraufteilung eines endlosen Vlieses, besonders aus Holzspaenen
US3993426A (en) * 1971-11-22 1976-11-23 Eduard Kusters Continuous press having improved anti-friction rollers
DE2355797C3 (de) * 1973-11-08 1981-04-16 Küsters, Eduard, 4150 Krefeld Presse zur Ausübung einer Flächenpressung
DE2243465C3 (de) * 1972-09-04 1979-11-22 Kuesters, Eduard, 4150 Krefeld Kontinuierlich arbeitende Presse
DE2819943B2 (de) * 1978-05-06 1980-07-10 Kuesters, Eduard, 4150 Krefeld Formband für eine Presse zur Ausübung einer Flächenpressung
DE3704940A1 (de) * 1987-02-17 1988-08-25 Kuesters Eduard Maschf Verfahren und anlage zur herstellung von holzspanplatten und aehnlichen plattenwerkstoffen

Also Published As

Publication number Publication date
CA2010216A1 (en) 1990-08-18
DD297359A5 (de) 1992-01-09
RU1836209C (ru) 1993-08-23
US5284609A (en) 1994-02-08
HU901435D0 (en) 1991-07-29
DE3904982C1 (sv) 1990-02-01
CS9000773A2 (en) 1991-07-16
CN1044916A (zh) 1990-08-29
HUT57119A (en) 1991-11-28
WO1990009263A1 (de) 1990-08-23
FI92297B (sv) 1994-07-15
BR9006032A (pt) 1991-08-06
JPH04501830A (ja) 1992-04-02
FI92297C (sv) 1994-10-25
MX173742B (es) 1994-03-25
DK0458806T3 (da) 1993-08-23
NO910635L (no) 1991-02-18
YU47643B (sh) 1995-12-04
PL162881B1 (pl) 1994-01-31
AR245028A1 (es) 1993-12-30
DE59001713D1 (de) 1993-07-15
HRP930918A2 (en) 1995-10-31
FI913806A0 (sv) 1991-08-12
JPH06102327B2 (ja) 1994-12-14
ES2020441A6 (es) 1991-08-01
YU29690A (sh) 1994-05-10
AU5027990A (en) 1990-09-05
AU616104B2 (en) 1991-10-17
CA2010216C (en) 1996-11-12
ATE90263T1 (de) 1993-06-15
NO910635D0 (no) 1991-02-18
CN1014877B (zh) 1991-11-27
CS276676B6 (en) 1992-07-15
HU205034B (en) 1992-03-30
EP0458806A1 (de) 1991-12-04

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