• 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:
    A method of continuously manufacturing chip and fiberboard webs having uniform thickness across their width in a press comprising a centrally disposed press cylinder journalled to rotate in bearings in uprights and at least one pressure roller, and preferably three pressure rollers, disposed adjacent the periphery of the press cylinder. An endless steel band carrying the material for forming the web is subjected to tensile stress and is guided around the press cylinder and through the nip defined between the press cylinder and the pressure roller. The material is pressed between the endless steel band and the surface of the press cylinder. The pressure roller is journalled for rotation in bearings at each of its ends. When the press is in its loaded state, the bearing body at one end of the pressure roller is displaced by the application of a preselected pressure towards the axis of rotation of the press cylinder. The spacing between the external surface of the press cylinder and that of the pressure roller is measured at such end and the same spacing is then set at the other end of the pressure roller by adjusting the bearing body at that end. By means of a microprocessor, it is possible to preselect specific gap sizes at all of the pressure rollers so as to produce a specific thickness of board, with the pressure rollers being held exactly parallel.
    公开号:SU1724006A3
    申请号:SU894742633
    申请日:1989-12-18
    公开日:1992-03-30
    发明作者:Герсбек Рольф
    申请人:Херманн Бершторфф Машиненбау Гмбх (Фирма)；
    IPC主号:
    专利说明:

    In presses of this type, continuously pressed webs with a certain thickness of the webs tend to bend, which is not significant for many applications.
    However, in order to broaden the field of application of chip and fiber boards, which are economically manufactured in this way, it was possible to reduce the tendency to bend by using press drums of a larger diameter. Therefore, instead of conventional drums with a diameter of 3000 mm, central drums with a diameter of 5000 mm began to be used, due to which the radius of curvature increased and, consequently, the tendency to curvature of the fabricated particle and fibrous webs decreased.
    This type of pressing drums has a weight of about 110 tons, therefore providing support for the drum and pressure rolls is costly.
    Great difficulties arise in the manufacture of chipboard and fiber cloths with small thickness tolerances on the width of the web, which is usually 2,200 or 2,500 mm, because of the weight of the drum and the mounting gaps that are inevitably present in the supports and between the parts of the columns connected to the thread Difficult to control characteristics occur.
    For example, a layer of fibers with a thickness of 8 cm is fed to a transport tape, which is first preformed in a prepress to a thickness of 5 cm to ensure transfer to a press. This fiber layer is then compressed in a press to, for example, 3 mm. The pressing process takes place first in the gap between the first pinch roller and the central pressing drum. Then, the pressed chips from an endless steel belt under tension are subject to surface pressure up to 20 N / cm2. In the adjacent gap between the near roll and the pressure drum, the compressed chips experience very high linear pressure.
    A sheet 3 mm thick pressed in this way may have only very small thickness tolerances of +0.2 mm for further processing. With a weight of the central drum of about 110 tons and the air in the supports and between the parts of the bed connected on the thread, this problem is very difficult to solve. The object of the invention is to develop a continuous press for the manufacture of equal thickness and full width of chipboard and fiber plates. Even if there are different thicknesses of placer layer of fiber, hedgehog; about
    27: 1, the compressed tile itself must have extremely small thickness tolerances.
    The purpose of the invention is to increase the quality of chipboard and fiberboard by reducing their thickness.
    According to the proposal, it is very simple, in spite of the different thicknesses of the placer of the structural cake or layer of fibers, webs are pressed with very small tolerances, while it is impossible to provide a strictly identical thickness to the cakes of shavings or layers of fibers.
    5 On one side of the nip roll, the support is moved with high pressure, ensuring sufficient compression of the cake of chips or die layer in the direction of the pressing drum. With
    When a certain pressure is reached, which the hydraulic cylinder of the support develops, the distance between the corresponding drum shells is established with the aid of a track sensor.
    5 On the basis of this recorded distance on one side of the gap, the distance is set on the opposite side by means of interacting with the bearing.
    0 supporting the hydraulic cylinder and using the displacement sensor connected to the microprocessor. Using the reading of the displacement sensor, the microprocessor controls the hydrocycic valve of the liquid. In this case, the reactive hydraulic cylinder is controlled not from pressure, but from displacement, maintaining the exact position of the support at this pressure value on this side.
    0 Fig. 1 schematically shows a rotary press, a longitudinal section; in fig. 2 - pressure roller and part of the central pressing drum, cross section.
    5 The press consists of a bed 1, carrying the central pressing drum 2 and pressure rolls 3-5. The endless steel belt 6 is under a high tension of the tension roller 7, which can be moved in the direction of the arrow 8. The steel belt fits the pressing drum 2, the discharge roller 9, the tension roller 7 and the pressure roller 3.
    The pressure rolls 3-5 are made with the possibility of movement in the direction shown by the arrows using a hydraulic cylinder (not shown),
    On both sides of the pressure roll 3 are the installation device with hydraulic cylinders 10 and 11, interacting
    with supports 12 and 13. Valve assemblies 14 and 15 connected to microprocessor 16 are connected to hydraulic cylinders.
    In addition, a displacement sensor 17 and 18 are connected to the microprocessor 16, which in this case, coming from the middle points of the supports 12 and 13, perceive the movement of the supports.
    The thickness between the side of the pressing drum 2 and the side of the pressure roll 3 is labeled 19 on one side and 20 on the opposite side.
    Using a transfer belt 6, a loose layer of fiber is introduced into the press and pressed into a fiber board with a thickness of, for example, 3 mm.
    When pressing the fibrous web with a thickness of 3 mm, in accordance with this thickness, a press nip is established between the pressure rolls 3-5 and the pressing drum 2, taking into account the thickness of the tension tape 6 of about 1.8 mm.
    The pressing process of the fiber layer 21 is carried out by surface compression by tensioning the endless steel belt 6 passing through the back of the center press drum 2. High linear pressure is created in the gaps between the respective pressure rolls 3-5 and the pressure drum 2.
    To set the same 3 mm wide gap of the pressing gap, it is necessary to set the same distances 19 and 20 on both sides. For this purpose, first by appropriately controlling the valve unit 14 by means of a microprocessor 16, a pressure is created, for example, 200 bar on the chip cake or fiber layer causing compression about 5: 1 or 17: 1. The sensor 17 detects the movement of the support body 12 and transmits to the microprocessor 16. If a gap 19 of 3 mm is reached on this side, the microprocessor stops the valve assembly 14 of the hydraulic cylinder 10.
    Then, the microprocessor 16 turns on the valve assembly 15, so that the hydraulic cylinder 11 of the support 12 is displaced in the direction of the pressing drum 2. Moving
    is taken into account by the sensor 18 and supplied to the microprocessor 16. When the thickness of the gap reaches 20 in 3 mm, the microprocessor stops the valve assembly 15 and extends the piston rod from the hydraulic cylinder, so the 3 mm clearance is maintained and, regardless of the pressure of the hydraulic cylinder 11, it can be completely other than the pressure of the hydraulic cylinder 10. In any case, maintained strictly
    an equal distance of 19. and 20, despite the various pressures of the hydraulic cylinders 10 and 11 and the different placer thicknesses of chip cake or a layer of fibers 21.
    A device thus designed to evenly set the gap is installed in each pressure roll 3–5, and these devices, correlated with microprocessors not shown, are adjusted for all the gaps equally.
    or in different ways
    权利要求:
    Claims (1)
    [1]
    Claims of the Invention A press for the continuous manufacture of particle and fiber plates, containing a central drive pressure drum installed in columns with an endless tensioned steel belt, at least one pressure roll mounted in bearing supports that are configured to move s in the direction of the pressure drum axis by means of hydraulic cylinders , characterized in that, in order to improve the quality of chipboard and wood-based boards by reducing their thickness packed with sensors for moving the bearings of the pressure rolls and a microprocessor associated with the sensors, which is connected to the pressure valves of the hydraulic cylinders.
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1724006A3|1992-03-30|Press for continuous manufacture of chip and fibrous plates
    CA1330520C|1994-07-05|Method and apparatus for compressing a self-supportedweb
    KR100290218B1|2001-05-15|Chip board continuous manufacturing method and apparatus
    FI73164C|1987-09-10|KONTINUERLIGT ARBETANDE PRESS.
    FI59356B|1981-04-30|ANORDING FOR CONTAINER TRYCKBEHANDLING AV BANOR
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    CN101637929B|2014-04-02|Continuous press for producing artificial board, operating method thereof and a controlling and adjusting device of the continuously press
    US5320036A|1994-06-14|Continuously operating material press
    EP0302884B1|1994-06-08|Belt and drum pressing apparatus
    SU645535A3|1979-01-30|Continuous action press
    US3938927A|1976-02-17|Apparatus for the continuous manufacture of chipboard panels, fibre panels or the like
    US5501145A|1996-03-26|Multi-purpose calendar
    US4932855A|1990-06-12|Press for the continuous production of chip-boards and fiber boards
    CA1158087A|1983-12-06|Method and apparatus for continuous production ofstrip material
    PL90071B1|1976-12-31|
    FI67509B|1984-12-31|KONTINUERLIGT ARBETANDE SKIVPRESS
    US5527422A|1996-06-18|Machine for continuous manufacture of chipboards, fibreboards or similar products
    US5223071A|1993-06-29|Apparatus for producing chip and fiberboard webs of uniform thickness
    US20090320697A1|2009-12-31|Continuous press and method for manufacturing composite materials with progressive symmetrical pressure
    US5096408A|1992-03-17|Continuously operating press
    FI107134B|2001-06-15|Continuous pressure
    US3792953A|1974-02-19|Machine for compressing a traveling web
    US4043733A|1977-08-23|Endless belt guide arrangement for a continuously operating press
    US3915612A|1975-10-28|Apparatus for the continuous manufacture of pressed panels for loose materials
    US4619195A|1986-10-28|Dual-belt press for a continuously advancing web of material
    同族专利:
    公开号 | 公开日
    IT1236922B|1993-04-26|
    DE3903022C1|1990-04-26|
    CN1044613A|1990-08-15|
    IT8922814D0|1989-12-22|
    AT396084B|1993-05-25|
    ATA276789A|1992-10-15|
    JP2816359B2|1998-10-27|
    GB2228226B|1992-11-18|
    GB9000853D0|1990-03-14|
    CN1014218B|1991-10-09|
    JPH02247099A|1990-10-02|
    GB2228226A|1990-08-22|
    US5057167A|1991-10-15|
    IT8922814A1|1991-06-22|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3006225A|1957-07-08|1961-10-31|Industrial Nucleonics Corp|Special mill controls|
    FR1376499A|1963-03-19|1964-10-31|Improvements in the clamping of rolls of crushers and other roll machines|
    GB1209467A|1967-09-27|1970-10-21|Arnost Michael Brichta|System for the control of nip and limitation of nip force on mill or calender rolls for rubber, plastics, paper and other materials|
    DE2050325A1|1970-10-14|1972-04-20|Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover|Device for the continuous production of thin chipboard|
    US3874962A|1970-10-14|1975-04-01|Berstorff Gmbh Masch Hermann|Apparatus for the continuous production of thin wood-wool boards|
    AT318223B|1971-02-10|1974-10-10|Berstorff Gmbh Masch Hermann|Device for the continuous production of thin chipboard|
    AT310424B|1971-02-10|1973-09-25|Berstorff Gmbh Masch Hermann|Device for the continuous production of thin chipboard|
    DE2114876C3|1971-03-27|1975-12-18|Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover|Device for the continuous production of thin chipboard|
    DE2329599A1|1973-06-09|1975-01-02|Baehre & Greten|EQUIPMENT FOR THE CONTINUOUS PRODUCTION OF CHIPBOARD|JPH0661859B2|1991-02-28|1994-08-17|清二 加川|Porous film manufacturing equipment|
    US5352108A|1991-10-18|1994-10-04|Norito Sudo|Porous film and porous film manufacturing apparatus|
    US6004668A|1992-08-31|1999-12-21|Andersen Corporation|Advanced polymer wood composite|
    CA2100319C|1992-08-31|2003-10-07|Michael J. Deaner|Advanced polymer/wood composite structural member|
    CA2100320C|1992-08-31|2011-02-08|Michael J. Deaner|Advanced polymer wood composite|
    US5406768A|1992-09-01|1995-04-18|Andersen Corporation|Advanced polymer and wood fiber composite structural component|
    US5441801A|1993-02-12|1995-08-15|Andersen Corporation|Advanced polymer/wood composite pellet process|
    CA2100001A1|1993-06-25|1994-12-26|Timothy D. Hanna|Alkali metal salts as surface treatments for fiberboard|
    JPH07258992A|1994-03-17|1995-10-09|Nippon Paper Ind Co Ltd|Calender apparatus for papermaking|
    DE4439419A1|1994-11-04|1996-05-09|Roehm Gmbh|Process for the thermal bonding of acrylic plastic parts|
    US5948524A|1996-01-08|1999-09-07|Andersen Corporation|Advanced engineering resin and wood fiber composite|
    US5730817A|1996-04-22|1998-03-24|Helisys, Inc.|Laminated object manufacturing system|
    US5847016A|1996-05-16|1998-12-08|Marley Mouldings Inc.|Polymer and wood flour composite extrusion|
    US6180257B1|1996-10-29|2001-01-30|Crane Plastics Company Limited Partnership|Compression molding of synthetic wood material|
    US5945131A|1997-04-16|1999-08-31|Velcro Industries B.V.|Continuous molding of fastener products and the like and products produced thereby|
    US20030187102A1|1997-09-02|2003-10-02|Marshall Medoff|Compositions and composites of cellulosic and lignocellulosic materials and resins, and methods of making the same|
    US6464913B1|1997-09-05|2002-10-15|Crane Plastics Company Limited Partnership|In-line compounding and extrusion system|
    US6344268B1|1998-04-03|2002-02-05|Certainteed Corporation|Foamed polymer-fiber composite|
    AT3590U1|1998-11-13|2000-05-25|Holzindustrie Preding Ges M B|WOODEN ELEMENT|
    US6280667B1|1999-04-19|2001-08-28|Andersen Corporation|Process for making thermoplastic-biofiber composite materials and articles including a poly component|
    US6662515B2|2000-03-31|2003-12-16|Crane Plastics Company Llc|Synthetic wood post cap|
    US6578368B1|2001-01-19|2003-06-17|Crane Plastics Company Llc|Cryogenic cooling of extruded and compression molded materials|
    US6637213B2|2001-01-19|2003-10-28|Crane Plastics Company Llc|Cooling of extruded and compression molded materials|
    JP2003102770A|2001-09-28|2003-04-08|Johnson & Johnson Kk|Seal device|
    US6632863B2|2001-10-25|2003-10-14|Crane Plastics Company Llc|Cellulose/polyolefin composite pellet|
    US6780359B1|2002-01-29|2004-08-24|Crane Plastics Company Llc|Synthetic wood composite material and method for molding|
    CN100344426C|2002-07-09|2007-10-24|戴文龙|Method for making surface layer material having preconcerted density and equipment thereof|
    DE10237535A1|2002-08-16|2004-03-04|Voith Paper Patent Gmbh|Device for the production of material webs|
    DE20303207U1|2003-02-26|2003-06-05|Kronospan Tech Co Ltd|Press device for plate making|
    DE202004004037U1|2004-03-12|2004-05-13|Binos Technologies Gmbh & Co. Kg|Device for the production of chipboard and fiberboard|
    DE102004021423A1|2004-04-30|2005-12-01|Siemens Ag|Method and device for determining the efficiency of a heat exchanger|
    US8074339B1|2004-11-22|2011-12-13|The Crane Group Companies Limited|Methods of manufacturing a lattice having a distressed appearance|
    US20150328347A1|2005-03-24|2015-11-19|Xyleco, Inc.|Fibrous materials and composites|
    US7708214B2|2005-08-24|2010-05-04|Xyleco, Inc.|Fibrous materials and composites|
    ES2397791T3|2005-03-24|2013-03-11|Xyleco, Inc.|Fibrous material manufacturing method|
    US8167275B1|2005-11-30|2012-05-01|The Crane Group Companies Limited|Rail system and method for assembly|
    US7743567B1|2006-01-20|2010-06-29|The Crane Group Companies Limited|Fiberglass/cellulosic composite and method for molding|
    US8460797B1|2006-12-29|2013-06-11|Timbertech Limited|Capped component and method for forming|
    DE102007060581A1|2007-12-13|2009-06-18|Heidelberger Druckmaschinen Ag|Rotary embosser|
    WO2015045077A1|2013-09-26|2015-04-02|Ykk株式会社|Hook-and-loop fastener molding apparatus and method of operation for same, as well as manufacturing method for hook-and-loop fastener|
    CN105599068B|2015-12-21|2018-07-06|北京林业大学|A kind of roll-in hot press, veneer lengthening system and veneer lengthening method|
    CN106626194A|2016-11-14|2017-05-10|苏州亨达尔工业材料有限公司|Double-face plasticator|
    DE102018131533B3|2018-12-10|2020-03-05|Nordischer Maschinenbau Rud. Baader Gmbh + Co. Kg|Device and method for separating mixed materials of different flowability|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE3903022A|DE3903022C1|1989-02-02|1989-02-02|
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