EP1435288A2 - Presse à fonctionnement continu - Google Patents

Presse à fonctionnement continu Download PDF

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Publication number
EP1435288A2
EP1435288A2 EP03029959A EP03029959A EP1435288A2 EP 1435288 A2 EP1435288 A2 EP 1435288A2 EP 03029959 A EP03029959 A EP 03029959A EP 03029959 A EP03029959 A EP 03029959A EP 1435288 A2 EP1435288 A2 EP 1435288A2
Authority
EP
European Patent Office
Prior art keywords
pressure
continuously operating
press
operating press
heating plates
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
EP03029959A
Other languages
German (de)
English (en)
Other versions
EP1435288A3 (fr
EP1435288B1 (fr
Inventor
Detlef Dipl.-Ing. Kroll
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.)
Dieffenbacher GmbH and Co KG
Original Assignee
Dieffenbacher 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 Dieffenbacher GmbH and Co KG filed Critical Dieffenbacher GmbH and Co KG
Publication of EP1435288A2 publication Critical patent/EP1435288A2/fr
Publication of EP1435288A3 publication Critical patent/EP1435288A3/fr
Application granted granted Critical
Publication of EP1435288B1 publication Critical patent/EP1435288B1/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
    • 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
    • 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
    • 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
    • B30B5/065—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 using anti-friction means for the pressing band
    • B30B5/067—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 using anti-friction means for the pressing band using anti-friction roller means

Definitions

  • the invention relates to a wide, continuously operating press according to the preamble of claim 1.
  • a process for the continuous production of wood-based panels, in particular boards in the thickness range 1 to 9 mm, using the dry process is known. Such a method is described, for example, in DE 101 63 090, it being possible in particular to produce plates with low adhesive contents using this method.
  • DE 101 09 316 describes a process for the continuous production of a wood-based panel with very short pressing times. A very reactive adhesive system is used for this. These short press times result in a feed rate of almost 1,000 mm / s.
  • DE 195 18 879 discloses a method with which, after precompression, the chip fiber mat in the inlet gap in the following main press lines by means of flexible press frames and / or press segments decompresses and compresses a low-pressure zone with a steep incline or fall angle tangent ⁇ and ⁇ 1 of approximately 0.05 for a vertical stroke of 0 to approximately 10 mm increasing extremely short at maximum production speed during production (online).
  • the existing processes and systems have some disadvantages in the production of thin plates. This essentially concerns the average density achieved and the surface density of the plate.
  • Thin boards with a thickness of 2 to 4 mm from the wet process are partly replaced by fiberboard of the same thickness from the dry process and chipboard with a thickness of about 15 mm.
  • the 15 mm chipboard absorbs about the same force as the fiberboard. But by using the thick chipboard, the furniture becomes heavier, so that only a limited use is possible.
  • the thin panels are mainly used as furniture back panels and drawer bottoms. With this use, they can also be coated or painted on one side. In recent times, the direct painting of the board surface has become increasingly popular. The previously necessary grinding process is no longer necessary. For an economically direct painting, however, the panels must meet certain requirements.
  • the surface density must be over 1000 kg / m 3 and the maximum density must be directly on the surface. At a lower density, the lacquer is absorbed by the plate, which leads to higher costs due to the increased use of lacquer.
  • the relatively stiff heating plates have very little possibility of deformation both in the longitudinal and in the transverse direction, especially in the case of short presses.
  • the technological deformability of the fiberboard to be produced is limited in the longitudinal direction.
  • a further disadvantage has turned out to be that, despite the corresponding number of cylinder arrangements in the transverse direction, the heating plates, particularly in the case of thin plates and HDF plate production, are too stiff in the high-pressure range to avoid these material densifications in the fiber mat, in the fiber mat. In the past, this has repeatedly led to steel strip damage.
  • the invention has for its object to provide a continuously operating press of the type mentioned, with which a greater deformability and elasticity of the heating plates and their action on the material to be pressed is possible within the pressing area and with which, with very short pressing times, thin fiberboard with an optimal density profile, in particular a high density in the outer layers with a difference in density between the outer and middle layers can be produced.
  • the solution according to the invention has the particular advantage that the Deformability and elasticity of those placed under the heating plates significantly thinner rolling plates, with a thickness of approx. 2 to 20 mm both in Is used transversely as well as in the longitudinal direction. While in the uncritical Areas with less pressure and less deformability required Roll-off plate fully supported by the heating plates is used in the critical High pressure and deformation areas the rolling plate from the heating plate decoupled by additional pressure elements and can be elastically essential be deformed more.
  • the press length is continuous working press is less than 11 m
  • the infeed area is a length of 1.3 m to 1.7 m and has an articulation in the upper part
  • the upper heating plate after 1.8 to 2.4 m mat contact for one Relief shock is designed to widen the press nip, for which the Heating plate thickness is between 90 - 100 mm and compared to Roll bars with flexible roll plates with a thickness of 2 mm to 20 mm is provided.
  • thin fiberboard can be produced in the shortest pressing times with optimal density profiles and high density differences between the cover layers and the middle layer, with a density of over 1000 kg / m 3 in the cover layers and below 600 kg / m in the middle layer 3 , with an average density of the plate less than 750 kg / m 3 , can be achieved.
  • the relief shock can be between two heating plates with the printing units be designed so that the load is reduced by up to 2.5 mm is possible, the bending with these soft heating plates and on it adjacent rolling plates according to DE 40 10 308 by means of an ankle between two heating plates can be reached over a very short distance.
  • the heating plate or the heating plates after the inlet is up to Relief surge very flexible.
  • the high flexibility of heating and Roll-off plates in this area therefore allow the density profile in the To design cover layers in a wider area than before.
  • the heating plate can also be divided and the impacts with the pressure units are carried out as load impacts.
  • the load impacts are preferably arranged at 5 m or after 5 and 7 m.
  • the temperature of the Steel straps with mat contact In addition to the flexibility of the heating plates, the temperature of the Steel straps with mat contact. The temperature must be above 140 ° C preferably 155 ° C, so at the time of maximum Adequate heating of the mat surfaces took place under pressure Has. Roll bar heating in the return is also an advantage.
  • the exact thickness setting must be made using the Wide possibility of transverse deformation of the heating plate be provided. This can be done using multipots, for example become.
  • a spreading station (not shown) either a three- or a two-layer mat on one gas permeable molding tape 6 sprinkled on, then with molding tape 6 introduced into the continuously operating press 3 via the inlet gap 19 and pressed there to a fiberboard 5.
  • the continuously operating press 3 consists in its main parts of the upper frame part 7, the lower frame part 8 and frames 20 connecting them.
  • the heating plate 14 arranged in the frame part 8 are made by means of hydraulic cylinder piston units (not shown) moved up and down against the lower heating plate 12 and locked in the selected position.
  • a steel band 9 is arranged and guided all around the lower frame part 8 and in steel band 10 around the upper frame part 7.
  • the steel strips 9 and 10 are pulled by drive drums 21 and 22 through the press nip 23 and deflected at the beginning by means of inlet drums 17 and 18.
  • the steel belts 9 and 10 are also provided with a rolling rod carpet formed from roller rods 16 all around.
  • a rolling rod carpet formed from roller rods 16 all around.
  • hardened rolling plates 15 of low density are attached to them.
  • the application of the rolling plates 15 on the heating plates 12 and 14 is shown in detail in DE 40 10 308 C2.
  • the continuous press 3 is for a discharge or load shock after the inlet area from 1.8 m to 2.4 m with a Relief push device 11 in or between two heating plates 14 and 14 and or 12 and 12, which forms the press nip 23 to widen and for which the heating plate thickness is between 90 mm and 100 mm as well opposite the roller bars 16 is provided with flexible rolling plates 15.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Press Drives And Press Lines (AREA)
EP03029959A 2002-12-30 2003-12-30 Presse à fonctionnement continu Expired - Lifetime EP1435288B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10261729A DE10261729A1 (de) 2002-12-30 2002-12-30 Kontinuierlich arbeitende Presse
DE10261729 2002-12-30

Publications (3)

Publication Number Publication Date
EP1435288A2 true EP1435288A2 (fr) 2004-07-07
EP1435288A3 EP1435288A3 (fr) 2005-12-21
EP1435288B1 EP1435288B1 (fr) 2010-09-29

Family

ID=32478117

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03029959A Expired - Lifetime EP1435288B1 (fr) 2002-12-30 2003-12-30 Presse à fonctionnement continu

Country Status (3)

Country Link
EP (1) EP1435288B1 (fr)
AT (1) ATE482821T1 (fr)
DE (2) DE10261729A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1676696A3 (fr) * 2005-01-03 2006-12-06 Dieffenbacher GmbH & Co. KG Presse fonctionnant en continu pour la fabrication de panneaux
EP2156931A1 (fr) * 2007-06-02 2010-02-24 Yoshino Gypsum Co., Ltd. Appareil et procédé pour fabriquer une plaque de plâtre
CN1970262B (zh) * 2005-11-11 2012-07-18 迪芬巴赫有限两合公司 在人造板生产过程中对持续工作辊轧机的挤入式楔型轧制装置进行调节的方法
WO2021119701A1 (fr) * 2019-12-19 2021-06-24 Berndorf Band Gmbh Presse à double bande comprenant au moins un dispositif de pression
CN114616093A (zh) * 2019-10-18 2022-06-10 瓦林格创新股份有限公司 用于制造建筑镶板的连续压制装置和方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4010308C2 (de) * 1990-03-30 1995-04-06 Dieffenbacher Gmbh Maschf Kontinuierlich arbeitende Presse
DE19518879A1 (de) * 1995-05-28 1996-12-05 Dieffenbacher Gmbh Maschf Verfahren und Anlage zur Herstellung von Spanplatten
DE19918492C5 (de) * 1999-04-23 2006-10-05 Siempelkamp Maschinen- Und Anlagenbau Gmbh & Co. Kg Verfahren zum Verpressen von Preßgutmatten zu Preßgutplatten im Zuge der Herstellung von Spanplatten, Faserplatten und anderen Holzwerkstoffplatten
DE10109316A1 (de) * 2001-02-27 2002-09-05 Dieffenbacher Gmbh Maschf Verfahren zur kontinuierlichen Herstellung von Holzwerkstoffplatten
DE10123793C2 (de) * 2001-05-16 2003-08-21 Metso Paper Inc Verfahren zur kontinuierlichen Herstellung von Holzspanplatten und ähnlichen bahnförmigen Plattenwerkstoffen und entsprechende Doppelbandpresse
DE10261730A1 (de) * 2002-12-30 2004-07-08 Dieffenbacher Gmbh + Co. Kg Verfahren mit Anlage und kontinuierlich arbeitende Presse zur Herstellung von Holzwerkstoffplatten

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1676696A3 (fr) * 2005-01-03 2006-12-06 Dieffenbacher GmbH & Co. KG Presse fonctionnant en continu pour la fabrication de panneaux
CN1970262B (zh) * 2005-11-11 2012-07-18 迪芬巴赫有限两合公司 在人造板生产过程中对持续工作辊轧机的挤入式楔型轧制装置进行调节的方法
EP2156931A1 (fr) * 2007-06-02 2010-02-24 Yoshino Gypsum Co., Ltd. Appareil et procédé pour fabriquer une plaque de plâtre
EP2156931A4 (fr) * 2007-06-02 2012-03-28 Yoshino Gypsum Co Appareil et procédé pour fabriquer une plaque de plâtre
CN114616093A (zh) * 2019-10-18 2022-06-10 瓦林格创新股份有限公司 用于制造建筑镶板的连续压制装置和方法
EP4045302A4 (fr) * 2019-10-18 2024-05-01 Vaelinge Innovation Ab Agencement de presse continue et procédé de fabrication de panneaux de construction
WO2021119701A1 (fr) * 2019-12-19 2021-06-24 Berndorf Band Gmbh Presse à double bande comprenant au moins un dispositif de pression
CN114746263A (zh) * 2019-12-19 2022-07-12 百德福钢带有限公司 具有至少一个压制装置的双带式压机

Also Published As

Publication number Publication date
DE50313126D1 (de) 2010-11-11
ATE482821T1 (de) 2010-10-15
EP1435288A3 (fr) 2005-12-21
DE10261729A1 (de) 2004-07-08
EP1435288B1 (fr) 2010-09-29

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