• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    1. Method of continuously producing chip boards, fibre boards and like boards, with which a fleece formed on a support and consisting of lignocellulose and/or cellulose-containing chips, fibres and the like, mixed with at least one bonding agent, is pressed while being heated in a calander press with a heated pressurising drum embraced over a part of its circumference by a steel band running over guide rollers and pressurising rollers and is discharged in the form of a continuous length of board, the fleece being compressed at the leading end of the pressing gap and then being heated while enclosed between heated pressurising drums and steel band and while being simultaneously advanced and is brought to the necessary hardening temperature, an additional application of pressure being applied to the steel strip, at least at one further circumferential position of the heated pressurising drum and thus to the fleece, which is under the radial holding pressure of the steel band, and thereafter the fleece is cured to form a finally compressed length of board, characterised in that the additional application of pressure only takes place after a time when the particles are heated to a temperature at which they are fully transformed into their yieldable state, and which corresponds substantially to the final hardening temperature of the bonding agent being used.
    公开号:SU1671155A3
    申请号:SU864028414
    申请日:1986-10-29
    公开日:1991-08-15
    发明作者:Штайнингер Ханс-Петер
    申请人:Вильхельм Менде Гмбх Унд Ко.(Фирма)；
    IPC主号:
    专利说明:

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    with
    The invention relates to methods for the continuous manufacture of wood-fiber fibrous, etc. boards and can be applied in the woodworking industry.
    The purpose of the invention is to improve the quality of the plates, reduce material consumption and increase productivity.
    The method is carried out as follows.
    On the base, a layer-carpet is formed from at least one of the thinner lignocellulosic and / or cellulose-containing chips or fibers. Formed layer-carpet enters the press gap formed by a heated drum and an endless steel band, partially covering the press drum. The tension ribbon is infinite on heated pressure rolls, which
    installed at the beginning and at the end of the press gap. The carpet layer at the start of the press nip is compressed to a value that is in the range above or below the nominal thickness of the finished plate, or to a value substantially smaller than the thickness of the finished plate. When the carpet enters the calender press into the gap between the heated drum and the steel tape during transport, the carpet is heated for a time until all particles are in their elastic state and the adhering material is brought to the required curing temperature.
    After the particles have been transformed into an elastic state, at least one additional pressure is exerted on the steel strip and thereby on the carpet layer using a pressure roll, which is rigidly flexed. Layer carpet at the time of impact
    about
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    additional pressure is under the radial holding pressure of the steel tape. Thereafter, the carpet layer is finally pressed out and withdrawn from the press nip.
    In the area of the press drum, in which the particles are transformed into an elastic state, the steel belt is further heated from the outside by means of contact and / or radiant heat.
    It is possible to preheat the bed before entering the press nip, preferably with high frequency energy.
    The additional pressure may be limited during the pressing for a short time, since, due to the compliance of the chips, the pressure immediately exerts its effect and the chips remain in a compressed state. For additional application of pressure, it is advisable to use heated rolls, the temperature of which is between the temperature of the inlet roll and the temperature of the pressure roll.
    The diameter of the pressure roller can be noticeably smaller than the diameter of the pressure wagon provided at the outlet, since the carpet layer which is pliable and heated to the required temperature for curing the binding substance in the positions in which these pressure rollers should come into action is much easier than at the beginning of the press gap.
    The invention provides for improving the quality of the plates and reducing the consumption of the binder and reducing the cost of the installation, since the additional pressure affects the material in which the particles are in a compliant state.
    权利要求:
    Claims (9)
    [1]
    1. A method of continuous manufacture of chipboard and fiber boards by forming an at-base carpet of mixed with at least one binding lignocellulosic and / or cellulose-containing wood shavings or fibers, followed by pressing in a calender press using a heated press drum, partially covered with the formation of a pressure gap with a steel tape passing through heated pressure rolls at the inlet and outlet of the pressure gap, while the layer-cover at the beginning of the compression pressure gap to a value comprised within the range above or below the nominal thickness of the plates, after which the carpet is heated with simultaneous transmission and exert additional pressure on the carpet through the layer
    steel tape under radical holding pressure, followed by solidification of the coating layer and its removal in the form of a continuous tape, characterized in that, in order to improve the quality of the plates, reduce material consumption and increase labor productivity, the time during which the particles
    They are heated to a temperature at which they become elastic, and the substance is brought to a curing temperature.
    [2]
    2. The method according to claim 1, wherein
    in that the steel strip is heated from the outside by means of contact and / or radiant heat in the area of the circumference of the heated press drum, in which the particles become elastic.
    [3]
    3. The method according to paragraphs. 1 and 2, characterized in that the length of the zone of the circumference of the drum, in which the particles of the layer of the carpet are transformed into an elastic state, vary depending on the predetermined thickness of the continuous plate being manufactured.
    [4]
    4. The method according to paragraphs. 1-3, characterized in that the carpet layer is compacted and / or heated before entering the pressing channel.
    [5]
    5. The method according to p. 4, different
    by preheating using high frequency energy.
    [6]
    6. Method according to paragraphs. 1-5, characterized in that the additional pressure on
    the carpet layer is carried out briefly.
    [7]
    7. Method according to paragraphs. 1-6, characterized in that the additional pressure is carried out with a roller, the temperature of which is between the temperature
    pressure roller at the entrance and the temperature of the press drum.
    [8]
    8. Method according to paragraphs. 1-7, characterized in that the additional pressure is carried out by means of a pressure roll,
    0 made tough to bend.
    [9]
    9. Method according to paragraphs. 1-8, characterized in that the additional pressure on the carpet layer is carried out by means of a nudging roll, the diameter of which is less than the diameter of the pressure roll at the entrance to the press nip.
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1056887A3|1983-11-23|Apparatus for continuously making wood-splinter and woodwool slabs from fibrous web
    SU1671155A3|1991-08-15|Method of continuous manufacture of particle-board and fibreboard
    RU2068339C1|1996-10-27|Device and method for continuous manufacture of wood particle boards
    SU1505434A3|1989-08-30|Apparatus for continuous manufacturing of endless particle-board web
    US6176951B1|2001-01-23|Process for the production of boards of wood-based material
    FI96494C|1996-07-10|Process for the manufacture of particle board or the like. and the corresponding double-band press
    CA2283592C|2001-04-24|A method of manufacturing chipboards, fibre boards and the like boards
    US6287410B1|2001-09-11|System and method for making compressed wood product
    US3021244A|1962-02-13|Process for producing high density hardboard
    CA2132230C|2000-06-20|Process and plant for the continuous production of particleboards
    RU2120372C1|1998-10-20|Lignocellulose panel manufacture method
    US2907071A|1959-10-06|Process for producing hard board
    RU2066634C1|1996-09-20|Device for continuous manufacture of wood-particle boards, fiber boards and the like
    US2744848A|1956-05-08|Making fiberboard of uniform density and thickness
    US20140096887A1|2014-04-10|Method and plant for producing material boards, and a device for compressing the narrow sides of a pressed-material mat
    US5658407A|1997-08-19|Method and apparatus for pre-pressing fibrous materials during the manufacture of fiberboard materials
    CS276955B6|1992-10-14|Press for continuous manufacture of thin particle boards and fibreboards
    EP0819043B1|2002-02-06|Method of manufacturing lignocellulosic board
    EP1688230B1|2008-05-28|Method for continuous manufacturing of fiberboards from wood
    SU1685259A3|1991-10-15|Installation for continuous making and finishing of sheet web of fibrous material
    CA2226508C|2006-05-23|A method of continuous production of lignocellulosic boards
    US4389182A|1983-06-21|Continuously operable chipboard press
    FI73380B|1987-06-30|FRAMEWORK FOR FRAMSTAELLNING AV FIBERERS ENLIGT DEN TORRA METODEN.
    US2919742A|1960-01-05|Mat forming method and apparatus
    SU571387A1|1977-09-05|Press for continuous making of wooden panels
    同族专利:
    公开号 | 公开日
    JPS62174101A|1987-07-30|
    FI864310A|1987-05-01|
    DK516486A|1987-05-01|
    DK164807C|1993-01-11|
    ES2017460B3|1991-02-16|
    FI84149C|1991-10-25|
    DD250290A5|1987-10-08|
    JP2635560B2|1997-07-30|
    US4946635A|1990-08-07|
    DK164807B|1992-08-24|
    EP0220701A1|1987-05-06|
    AT55311T|1990-08-15|
    CN86107430A|1987-06-03|
    DE3538531A1|1987-05-07|
    DK516486D0|1986-10-29|
    DE3673321D1|1990-09-13|
    EP0220701B1|1990-08-08|
    FI84149B|1991-07-15|
    MX168066B|1993-05-03|
    FI864310A0|1986-10-24|
    CN1012807B|1991-06-12|
    DE3538531C2|1988-10-27|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE2034853C3|1970-07-14|1974-07-11|Mende & Co W|
    BE757468A|1970-07-14|1971-03-16|Mende & Co W|SYSTEM FOR CONTINUOUS MANUFACTURING OF AGGLOMERATED CHIP BOARDS|
    US3874962A|1970-10-14|1975-04-01|Berstorff Gmbh Masch Hermann|Apparatus for the continuous production of thin wood-wool boards|
    DE2053351C3|1970-10-30|1974-11-07|Wilhelm Mende & Co, 3371 Teichhuette|Device for the production of an endless thin chipboard sheet|
    DE2100132A1|1971-01-04|1972-07-13|Bison-Werke Bahre & Greten GmbH & Co KG, 3257 Springe|Device for the continuous production of panels, in particular chipboard|
    DE2126935C3|1971-05-29|1973-11-22|Mende & Co W|Pressing process for the production of unge schhffener chipboard and device for carrying out the pressing process|
    DE2218074C3|1972-04-14|1980-10-02|Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover|Device for the continuous production of laminated chipboard sheets|
    US4097640A|1972-07-08|1978-06-27|Karl Kroyer St. Anne's Limited|Production of fibrous sheet material|
    DE2360141C3|1973-12-03|1980-06-04|Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover|Device for the continuous production of an endless chipboard web, fibreboard web or the like|
    DE2710000A1|1977-03-08|1978-09-14|Berstorff Gmbh Masch Hermann|EQUIPMENT FOR THE CONTINUOUS MANUFACTURING OF CHIPBOARD, FIBERBOARD OR THE SAME|DE3734180C2|1987-10-09|1998-01-29|Kuesters Eduard Maschf|Double belt press for the production of chipboard and the like|
    DE3800513C2|1988-01-11|1993-04-22|Bison-Werke Baehre & Greten Gmbh & Co Kg, 3257 Springe, De|
    DE3937421C1|1989-11-10|1991-01-24|Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover, De|
    US5295805A|1990-03-02|1994-03-22|Ryoka Techno Engineering & Construction Co.|Rotating cylindrical treatment apparatus|
    CA2100320C|1992-08-31|2011-02-08|Michael J. Deaner|Advanced polymer wood composite|
    US5948524A|1996-01-08|1999-09-07|Andersen Corporation|Advanced engineering resin and wood fiber composite|
    GB2324061B|1997-04-10|2002-05-08|Findlay Alice Rosemary|A moulded door skin|
    JP4268318B2|2000-06-29|2009-05-27|芝浦メカトロニクス株式会社|Substrate transport apparatus and substrate transport method|
    DE202004015471U1|2004-10-04|2006-02-09|M. Kaindl Kommanditgesellschaft|Lightweight panel and a panel with a lightweight board|
    JP4580736B2|2004-11-18|2010-11-17|ユニ・チャーム株式会社|Absorbent core molding drum|
    ES2686624T3|2005-01-27|2018-10-18|Ecowater Systems, Llc|Control procedure of a reverse osmosis water treatment system|
    JP5017152B2|2008-03-14|2012-09-05|株式会社コガネイ|connector|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE3538531A|DE3538531C2|1985-10-30|1985-10-30|
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