EP0443053A1 - Procédé et dispositif pour fabriquer des pièces moulées - Google Patents

Procédé et dispositif pour fabriquer des pièces moulées Download PDF

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Publication number
EP0443053A1
EP0443053A1 EP90103198A EP90103198A EP0443053A1 EP 0443053 A1 EP0443053 A1 EP 0443053A1 EP 90103198 A EP90103198 A EP 90103198A EP 90103198 A EP90103198 A EP 90103198A EP 0443053 A1 EP0443053 A1 EP 0443053A1
Authority
EP
European Patent Office
Prior art keywords
mixture
press
pressing
hot gases
vapors
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
EP90103198A
Other languages
German (de)
English (en)
Other versions
EP0443053B1 (fr
Inventor
Edmund Munk
Helmuth Huber
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.)
Werzalit AG and Co KG
Original Assignee
Werzalit AG 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
Priority to DK90103198.9T priority Critical patent/DK0443053T3/da
Application filed by Werzalit AG and Co KG filed Critical Werzalit AG and Co KG
Priority to AT90103198T priority patent/ATE95464T1/de
Priority to EP90103198A priority patent/EP0443053B1/fr
Priority to ES90103198T priority patent/ES2045591T3/es
Priority to DE90103198T priority patent/DE59003016D1/de
Priority to JP2247649A priority patent/JPH0622818B2/ja
Priority to US07/585,820 priority patent/US5078938A/en
Priority to CA002036584A priority patent/CA2036584C/fr
Publication of EP0443053A1 publication Critical patent/EP0443053A1/fr
Application granted granted Critical
Publication of EP0443053B1 publication Critical patent/EP0443053B1/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
    • B27N3/086—Presses with means for extracting or introducing gases or liquids in the mat
    • 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
    • B27N5/00—Manufacture of non-flat articles

Definitions

  • the application relates to a process for the production of moldings from a non-flowable mixture of chip and / or fiber materials and thermosetting binders, in which the mixture is pressed and cured in a press with a mold closed on all sides, and in which a part of the Curing heat energy required is applied by hot gases or vapors introduced into the mixture during pressing.
  • Such a method is known (DE-C-1 284 624).
  • the known method is intended to prevent particles from being torn out of the pre-pressed profile body, which then clog the channels during hot pressing, through which the vapors and gases formed in the molding compound are discharged or hot gases are fed into the interior of the mold.
  • Problems have been proposed for the known method of pressing depressions that are distributed over the surface of the pre-compact at least on one of its sides during the pre-pressing.
  • the present invention is concerned with a process for the production of molded parts from a non-flowable mixture, in which the profile body is pressed out of the mixture in a hot pressing process, namely a measure for the rapid and uniform introduction of the gases or vapors into the closed one Mold are specified so that the pressing and curing time is reduced to a minimum.
  • the hot gases and vapors can be introduced into the mixture in the mold in the shortest possible time and can be distributed evenly there. This not only leads to an even distribution of the heat in the molding compound, but also to rapid heating of the molding compound. This process is apparently promoted by the fact that the chip or fiber components of the molding compound deposit in the preform in such a way that the larger number of chips or fibers is at right angles to the pressing direction.
  • the press shown in FIG. 1 has a fixed pressing tool lower part 1.
  • the frame-like pressing tool upper part 3 comprising the filling space 2 is guided vertically thereon. It can be closed with the lid 4 and - as indicated by the arrows 5 - vertically displaceable.
  • the supply channels 6 for the hot gases and vapors are arranged horizontally, one end of which leads into the filling space 2 and the other end of which leads to a collecting line 7 leading to a reservoir (not shown) for hot gases or vapors.
  • the method according to the invention now proceeds in the following way: After opening the cover 4, the filling space 2 is filled with the mixture. Then the cover 4 is closed and a force is exerted in the vertical direction on the press tool upper part 3 with cover 4. At the same time, hot gases or vapors are passed through the collecting line 7 and the supply channels 6 into the filled mixture. In this way, the molded part 8 is pressed and cured from the mixture, if necessary with additional heating of the lower pressing part 1, upper pressing part 3 and cover 4.
  • Fig. 2 shows the press after completion of the pressing process.
  • the molded part 8 can be ejected after opening the cover 4. From Fig. 2 it is clear that the supply channels 6 are arranged in the pressing tool upper part 3 only in the areas in which the pressing tool upper part 3 is moved past the pressing tool lower part 1.
  • Fig. 3 shows an apparatus for producing pallets pressed from the mixture, in which the method according to the invention is used to accelerate the pressing and hardening of the strong edge.
  • the pallet consists in a manner known per se from a largely flat plate 9, which has several Pot-shaped feet 10 is provided.
  • the press consists of a fixed pressing tool lower part 11 and a movable pressing tool upper part 12. In the area of the edge 13 of the pallet, the pressing tool lower part 11 is provided with the feed channels 6, which open into the collecting line 7 at one end.
  • the device according to FIG. 4 differs from the device according to FIGS. 1 and 2 in that the pressing tool upper part 3 still has a central part 14, which also has feed channels 6 and a collecting line 7.
  • the gases still in the molded part after the hot pressing are quickly removed from the molded part or the press.
  • One way to achieve this is to arrange reversible valves - not shown - in the feed channels. These valves are to be controlled in such a way that the path for the gases to be removed is opened after the mold is closed.
  • Another possibility is to provide degassing channels in the press tool lower part 1 and / or in the cover 4, through which the gases to be discharged can escape, not shown.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Moulding By Coating Moulds (AREA)
  • Reinforced Plastic Materials (AREA)
EP90103198A 1990-02-20 1990-02-20 Procédé et dispositif pour fabriquer des pièces moulées Expired - Lifetime EP0443053B1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
AT90103198T ATE95464T1 (de) 1990-02-20 1990-02-20 Verfahren und vorrichtung zur herstellung von formteilen.
EP90103198A EP0443053B1 (fr) 1990-02-20 1990-02-20 Procédé et dispositif pour fabriquer des pièces moulées
ES90103198T ES2045591T3 (es) 1990-02-20 1990-02-20 Procedimiento y dispositivo para la fabricacion de partes moldeadas.
DE90103198T DE59003016D1 (de) 1990-02-20 1990-02-20 Verfahren und Vorrichtung zur Herstellung von Formteilen.
DK90103198.9T DK0443053T3 (da) 1990-02-20 1990-02-20 Fremgangsmåde og anordning til fremstilling af formdele
JP2247649A JPH0622818B2 (ja) 1990-02-20 1990-09-19 成形部材を製造するための方法並びに装置
US07/585,820 US5078938A (en) 1990-02-20 1990-09-20 Method and apparatus for making a molded article from a nonflowable mixture of chip and/or fiber material and a thermally hardenable binder
CA002036584A CA2036584C (fr) 1990-02-20 1991-02-19 Methode et appareil de moulage d'articles a partir d'un melange solide de copeaux, de fibres agglomeres au moyen d'un liant thermodurcissable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP90103198A EP0443053B1 (fr) 1990-02-20 1990-02-20 Procédé et dispositif pour fabriquer des pièces moulées

Publications (2)

Publication Number Publication Date
EP0443053A1 true EP0443053A1 (fr) 1991-08-28
EP0443053B1 EP0443053B1 (fr) 1993-10-06

Family

ID=8203665

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90103198A Expired - Lifetime EP0443053B1 (fr) 1990-02-20 1990-02-20 Procédé et dispositif pour fabriquer des pièces moulées

Country Status (8)

Country Link
US (1) US5078938A (fr)
EP (1) EP0443053B1 (fr)
JP (1) JPH0622818B2 (fr)
AT (1) ATE95464T1 (fr)
CA (1) CA2036584C (fr)
DE (1) DE59003016D1 (fr)
DK (1) DK0443053T3 (fr)
ES (1) ES2045591T3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0908281A1 (fr) * 1997-10-10 1999-04-14 Werzalit Ag + Co. Procédé et dispositif pour fabriquer des articles moulés
EP0956936A1 (fr) * 1998-05-15 1999-11-17 Werzalit Ag + Co. Presse à fonctions multiples pour la fabrication d'objets moulés
DE19825172C2 (de) * 1998-06-05 2003-02-06 Karl-Heinz Schallenmueller Vorrichtung zur Herstellung von Formteilen
DE4430528C2 (de) * 1994-08-27 2003-09-18 Werzalit Ag & Co Verfahren und Vorrichtung zur Herstellung von Formteilen

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2685249B1 (fr) * 1991-12-24 1994-02-11 Snecma Procede de fabrication d'une pale de soufflante en materiau composite et outillage de moulage.
US6187234B1 (en) 1998-06-23 2001-02-13 Masonite Corporation Method for steam pressing composite board having at least one finished surface
US6318989B1 (en) 1998-06-23 2001-11-20 Masonite Corporation Steam injection press platen for pressing fibrous materials
US5980798A (en) * 1998-07-08 1999-11-09 Masonite Corporation Method for steam pressing composite board having at least one finished surface
US6243931B1 (en) 1998-09-15 2001-06-12 Batesville Services, Inc. Casket lid and method and making same
US6849141B2 (en) * 1998-09-15 2005-02-01 Batesville Services, Inc. Casket lid and method of making same
US6132656A (en) * 1998-09-16 2000-10-17 Masonite Corporation Consolidated cellulosic product, apparatus and steam injection methods of making the same
US6561787B2 (en) 1999-09-29 2003-05-13 Kansas State University Research Foundation Apparatus for forming biodegradable and edible feed packaging materials
US6887064B2 (en) * 2002-06-18 2005-05-03 Sung Kuk Soh Method and apparatus for producing non-planar formed parts using compaction molding compounds, and parts formed using same
DE102008026258A1 (de) * 2008-06-02 2009-12-03 Pfleiderer Ag Verfahren zur Herstellung eines Holzwerksoff-Formteiles
EP2349663B1 (fr) 2008-10-21 2016-12-14 Uniboard Canada Inc. Panneaux de particules monocouches gaufres et procedes de preparation associes
US8623263B2 (en) * 2009-08-05 2014-01-07 Ocv Intellectual Capital, Llc Process for curing a porous muffler preform
US20110031660A1 (en) * 2009-08-05 2011-02-10 Huff Norman T Method of forming a muffler preform

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE714341C (de) * 1937-09-24 1941-11-27 Schwenk E Fa Vorrichtung zur Herstellung von Presskoerpern, insbesondere Bauplatten
US2854896A (en) * 1952-11-19 1958-10-07 Rexolit Holzstoffplatten Ges M Process for producing shaped articles, particularly plates
EP0063404A1 (fr) * 1981-04-14 1982-10-27 Carbocol Inc. Agglomération de fibres de bois par la vapeur d'eau

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3122787A (en) * 1960-11-18 1964-03-03 Owens Illinois Glass Co Apparatus and method for molding cellular articles
US3280237A (en) * 1963-04-22 1966-10-18 Weyerhaeuser Co Method of pressing composite consolidated articles
CH488539A (de) * 1968-03-19 1970-04-15 Bucher Guyer Ag Masch Formmaschine zum Verarbeiten von expandierbaren Kunststoffen
US3891738A (en) * 1972-11-10 1975-06-24 Canadian Patents Dev Method and apparatus for pressing particleboard
CA1075140A (fr) * 1976-09-23 1980-04-08 Donald W. Nyberg Appareil pour la fabrication de panneaux d'agglomeres
US4316865A (en) * 1978-06-05 1982-02-23 Saint-Gobain Industries Method for heat treatment of fibrous mats
US4379101A (en) * 1980-06-04 1983-04-05 Allen Industries, Inc. Forming apparatus and method
US4326844A (en) * 1980-08-25 1982-04-27 Owens-Corning Fiberglas Corporation Method and apparatus for curing fibrous mineral material
US4393019A (en) * 1981-11-30 1983-07-12 The United States Of America As Represented By The Secretary Of Agriculture Method of pressing reconstituted lignocellulosic materials
US4517147A (en) * 1984-02-03 1985-05-14 Weyerhaeuser Company Pressing process for composite wood panels
DE3411590A1 (de) * 1984-03-29 1985-10-10 G. Siempelkamp Gmbh & Co, 4150 Krefeld Anlage fuer die herstellung einer holzwerkstoffplatte aus einer holzwerkstoffmatte durch pressen und dampfhaertung, insbes. fuer die herstellung von spanplatten, faserplatten u. dgl.
CA1255470A (fr) * 1985-05-15 1989-06-13 Karl Walter Fabrication d'un panneau de bois reconstitue
CN1009443B (zh) * 1986-11-14 1990-09-05 库特·赫尔德·法布里肯特 制造复合木材制品板的方法和设备
DE3804416A1 (de) * 1988-02-10 1989-08-24 Kiss G H Gitterdaempfung
US4850849A (en) * 1988-04-29 1989-07-25 Forintek Canada Corp. Apparatus for steam pressing compressible mat material
US4937024A (en) * 1989-06-26 1990-06-26 Borden, Inc. Method for bonding lignocellulosic material with gaseous esters

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE714341C (de) * 1937-09-24 1941-11-27 Schwenk E Fa Vorrichtung zur Herstellung von Presskoerpern, insbesondere Bauplatten
US2854896A (en) * 1952-11-19 1958-10-07 Rexolit Holzstoffplatten Ges M Process for producing shaped articles, particularly plates
EP0063404A1 (fr) * 1981-04-14 1982-10-27 Carbocol Inc. Agglomération de fibres de bois par la vapeur d'eau

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4430528C2 (de) * 1994-08-27 2003-09-18 Werzalit Ag & Co Verfahren und Vorrichtung zur Herstellung von Formteilen
EP0908281A1 (fr) * 1997-10-10 1999-04-14 Werzalit Ag + Co. Procédé et dispositif pour fabriquer des articles moulés
US5972262A (en) * 1997-10-10 1999-10-26 Werzalit Ag + Co Method of and device for producing shaped parts
EP0956936A1 (fr) * 1998-05-15 1999-11-17 Werzalit Ag + Co. Presse à fonctions multiples pour la fabrication d'objets moulés
US6238199B1 (en) 1998-05-15 2001-05-29 Werzalit Ag + Co. Multi-purpose press for producing formed parts
DE19825172C2 (de) * 1998-06-05 2003-02-06 Karl-Heinz Schallenmueller Vorrichtung zur Herstellung von Formteilen

Also Published As

Publication number Publication date
US5078938A (en) 1992-01-07
ES2045591T3 (es) 1994-01-16
DK0443053T3 (da) 1993-11-22
JPH03248814A (ja) 1991-11-06
ATE95464T1 (de) 1993-10-15
CA2036584C (fr) 1995-02-07
CA2036584A1 (fr) 1991-08-21
JPH0622818B2 (ja) 1994-03-30
EP0443053B1 (fr) 1993-10-06
DE59003016D1 (de) 1993-11-11

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