EP0507731A1 - Procédé et dispositif pour fabriquer d'une pièce moulée fibreuse - Google Patents

Procédé et dispositif pour fabriquer d'une pièce moulée fibreuse Download PDF

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Publication number
EP0507731A1
EP0507731A1 EP92810208A EP92810208A EP0507731A1 EP 0507731 A1 EP0507731 A1 EP 0507731A1 EP 92810208 A EP92810208 A EP 92810208A EP 92810208 A EP92810208 A EP 92810208A EP 0507731 A1 EP0507731 A1 EP 0507731A1
Authority
EP
European Patent Office
Prior art keywords
press
molded part
depositing
material components
blanks
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
EP92810208A
Other languages
German (de)
English (en)
Other versions
EP0507731B1 (fr
Inventor
Othmar Weibel
Willi Haeseker
Giovanni Ghigliotti
Michele Vescera
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.)
Matec Holding AG
Original Assignee
Matec Holding AG
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 Matec Holding AG filed Critical Matec Holding AG
Publication of EP0507731A1 publication Critical patent/EP0507731A1/fr
Application granted granted Critical
Publication of EP0507731B1 publication Critical patent/EP0507731B1/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
    • B27N3/10—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
    • B27N5/00—Manufacture of non-flat articles

Definitions

  • the present invention relates to a method for producing fibrous press-molded parts, as are used in automobile construction, in which suitable material components, in particular fibers, binders and additives, are fed into a feed channel by means of a first device, in which the supplied material components are deposited on a transport device by means of a second device for forming a molded blank, in which the deposited molded blank is fed to a heating device in which the molded blank is subjected to a heat treatment for predrying and condensing the binders, in order then to be pressed in a preform press into a preform in which the preform is fed to a molding press and in which a press molded part is produced from the preform, as well as a device for performing this method and a molded part produced therewith.
  • suitable material components in particular fibers, binders and additives
  • the materials to be processed are placed evenly on a conveyor belt in order to initially produce a nonwoven fabric with a constant thickness and constant density.
  • This prefabricated nonwoven fabric is then passed through a contour device with which any relief shapes are cut out of the nonwoven fabric, milled, sawn and / or suctioned off. With this contour-imparting treatment of the nonwoven, molded parts can be produced which come close to the above-mentioned requirements.
  • each new contour to be shaped also requires a change in the contour tools, be it cutting rollers, contour saws or milling head arrangements. These tool changes are expensive and mean that molded parts are only manufactured in large quantities and large stocks have to be accepted.
  • the object of the present invention to provide a method which overcomes the disadvantages of the known ones Procedure overcomes.
  • the aim of the present invention is to create a cost-effective and flexible method which does not generate waste a priori, which does not require any new contour tools for the production of differently shaped parts and which enables optimum utilization of the entire system.
  • controllable depositing device is connected to a control device which coordinates the individual devices required for the manufacturing process in order to optimally utilize the respective molding presses. For example, with it the speed of the supplied material components and their composition can be varied, the transport speed and the residence time in the heating device or the presses can be varied.
  • presses for different molded parts are used at the same time and the controllable depositing device is controlled in such a way that a molded part blank corresponding to the press mold is deposited for a specific press.
  • the present invention allows rapid and individual production of molded blanks and leads to one flexible and optimally utilizable, ie cost-effective manufacturing plant. Any defective moldings detected during quality control, or fragments or cutting remnants can be put back into the feed device and used again in the present invention without additional effort.
  • FIG. 1 shows a spatial representation of a device according to the invention in its simplest embodiment.
  • the system 1 shown in FIG. 1 for carrying out the method according to the invention has a first device 2.
  • This device 2 comprises a container 3 for holding suitable raw materials, in particular fibrous materials with predominantly organic fibers, ie cotton, sisal, banana fibers etc., and a shredder 4 in which this raw material is broken up according to the requirements.
  • This first device 2 also has an inlet 5 through which powdered binders and additives are added to the fibers.
  • These are essentially resin compounds of the type usually used and well known to those skilled in the art.
  • Can be used as additives materials containing chitin are also suitable. These materials give the end products their inherent stability and are extremely lightweight.
  • the device 2 conveys the material components mixed in the desired composition into a feed channel 6, which can be moved like a trunk at its outer end.
  • the shredder 4 is equipped with an adjustable roller in order to be able to adjust the delivery quantity and the nature of the raw material.
  • the first device 2 is provided with control mechanisms, for example flaps, in order to control the desired air-fiber-resin mixture and its feed rate in the feed channel 6.
  • the trunk-like end of the feed channel 6 is held and guided by a controllable arm 7 of the controllable depositing device 8.
  • This arm moves the trunk-like end of the feed channel in a predetermined manner over a predetermined area of the transport device 9 in order to form a fiber material depot 11, in short a molded part blank, which corresponds to a desired geometric distribution.
  • the outlet opening of the feed channel 6 is shaped and equipped accordingly.
  • the material to be processed can also be deposited in an appropriately dimensioned drip tray.
  • these shells suitably have deep-drawn bottom contours.
  • the laying surface on which the molded part blanks 11 are built is permeable to air and, as part of the second device 12, lies above a suction device 13 which the fiber material is held in its stored contour.
  • the transport device 9 shown in the present FIG. 1 essentially comprises a conveyor belt 14, with which the deposited fiber material forming the blank 11 is brought to a heating device 15.
  • the binders in particular phenolic resins, are condensed in this heating device 15.
  • This heat treatment i.e. Temperature control and duration depends essentially on the composition of the binders used and is known to the person skilled in the art, for example, from EP-A-76429. According to the invention, this treatment is controlled via a control device 18 coupled to the controllable depositing device 8.
  • the vapors produced during this treatment are usually collected in a fume cupboard 16 and carried away.
  • the molded part blanks 11 treated in this way are then fed to a preform press 17 and are compacted, preformed and fixed in a known manner therein by means of hot steam.
  • the production plant 1 shown in the present FIG. 1 has two molding presses 18, 19 which form the desired molds 21 from the preforms. These presses preferably have cutting tools on their periphery in order to cut off any protruding edges of the molded parts.
  • the transport device comprises a rotatable one Transport table on which several blanks 11 can be placed.
  • This carousel-like transport table essentially serves for the coordinated loading of the molding presses and, according to the invention, is coupled to the controllable depositing device 8 via the control device 18.
  • their controls are also connected in a suitable manner to the control device 18.

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)
  • Nonwoven Fabrics (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
EP92810208A 1991-03-26 1992-03-23 Procédé et dispositif pour fabriquer d'une pièce moulée fibreuse Expired - Lifetime EP0507731B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH917/91 1991-03-26
CH917/91A CH683406A5 (de) 1991-03-26 1991-03-26 Verfahren und Vorrichtung zum Herstellen eines fibrösen Formteils.

Publications (2)

Publication Number Publication Date
EP0507731A1 true EP0507731A1 (fr) 1992-10-07
EP0507731B1 EP0507731B1 (fr) 1994-12-14

Family

ID=4198181

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92810208A Expired - Lifetime EP0507731B1 (fr) 1991-03-26 1992-03-23 Procédé et dispositif pour fabriquer d'une pièce moulée fibreuse

Country Status (8)

Country Link
US (1) US5215696A (fr)
EP (1) EP0507731B1 (fr)
JP (1) JPH05169478A (fr)
BR (1) BR9201041A (fr)
CA (1) CA2063966A1 (fr)
CH (1) CH683406A5 (fr)
DE (1) DE59200932D1 (fr)
ES (1) ES2065769T3 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5935509A (en) * 1998-03-24 1999-08-10 Cambridge Industries, Inc. Process for manufacturing fiber preforms and an apparatus for the process
JP2006519729A (ja) * 2003-03-12 2006-08-31 コリンズ・アンド・アイクマン・プロダクツ・コーポレーション デカップラ層を含む車両内部構成部材を形成する改善された方法
EP1606087A2 (fr) * 2003-03-12 2005-12-21 Collins & Aikman Products Co. Procedes ameliores pour produire des decoupleurs pour composants d'interieur de vehicule
WO2004080763A2 (fr) * 2003-03-12 2004-09-23 Collins & Aikman Products Co. Appareil rotatif de formation de decoupleurs pour elements d'interieur de vehicule
US20070151658A1 (en) * 2004-03-12 2007-07-05 Surendra Khambete Contoured mold for forming decouplers for attenuating sound in a vehicle
EP1908574A1 (fr) * 2006-10-05 2008-04-09 Novameer B.V. Procédé pour la fabrication de produits troisdimensionels en polymères auto-renforcés
RU2019143350A (ru) 2017-06-02 2021-07-09 Хюхтамаки Молдед Файбер Текнолоджи Б.В. Трехмерное формованное изделие из распушенной целлюлозы и способ его изготовления

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2206700A5 (fr) * 1972-11-10 1974-06-07 Gudin Michel
US4038531A (en) * 1976-05-18 1977-07-26 Weyerhaeuser Company Process control apparatus for controlling a particleboard manufacturing system
EP0069162A1 (fr) * 1981-07-04 1983-01-12 Carl Schenck Ag Procédé et dispositif pour contrôler la répartition de densité dans une nappe de particules dispersée
EP0089013A1 (fr) * 1982-03-12 1983-09-21 DEUTSCHE FIBRIT GESELLSCHAFT Ebers & Dr. Müller mbH Procédé de fabrication de corps plats de forme quelconque avec des composés de bois défibré
EP0162118A1 (fr) * 1984-04-16 1985-11-27 Bison-Werke Bähre & Greten GmbH & Co. KG Procédé et dispositif pour obtenir une répartition prédéterminée de poids par unité de surface dans une première couche de fibres
EP0225629A2 (fr) * 1985-12-09 1987-06-16 Toyota Jidosha Kabushiki Kaisha Produits de bois moulés
EP0264746A2 (fr) * 1986-10-12 1988-04-27 Daiwa Co., Ltd. Appareil pour recouvrir l'arrière d'un tapis de voiture
US4904517A (en) * 1987-11-27 1990-02-27 Macmillan Bloedel Research Ribbed waferboard product

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2759837A (en) * 1952-10-13 1956-08-21 Weyerhaeuser Timber Co Process of forming molded cellulose products
US4379101A (en) * 1980-06-04 1983-04-05 Allen Industries, Inc. Forming apparatus and method
DE3139267A1 (de) * 1981-10-02 1983-04-21 Johann Borgers Gmbh & Co Kg, 4290 Bocholt Verfahren zur herstellung geruchsarmer, mit phenolharz verfestigter vliesstoffe
FR2529917A1 (fr) * 1982-07-06 1984-01-13 Saint Gobain Isover Procede et dispositif pour la formation de feutre de fibres contenant un produit additionnel
CA1236813A (fr) * 1984-04-16 1988-05-17 Wolfgang Heller Methode et dispositif pour en venir a l'uniformite predeterminable du volume massique en sens transverse d'une precouche ou d'une couche
DE3877579D1 (de) * 1988-11-05 1993-02-25 Werzalit Ag & Co Langgestrecktes verkleidungsprofil, vorrichtung und verfahren zu seiner herstellung.
US5034181A (en) * 1989-09-27 1991-07-23 Process First, Inc. Apparatus for and method of manufacturing preforms
WO1991012944A1 (fr) * 1990-02-23 1991-09-05 Wellman Machinery Of Michigan Appareil et procede d'application de fibres de preforme
US5093059A (en) * 1991-01-18 1992-03-03 Shell Oil Company Method for the transport of a homogeneous mixture of chopped fibers

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2206700A5 (fr) * 1972-11-10 1974-06-07 Gudin Michel
US4038531A (en) * 1976-05-18 1977-07-26 Weyerhaeuser Company Process control apparatus for controlling a particleboard manufacturing system
EP0069162A1 (fr) * 1981-07-04 1983-01-12 Carl Schenck Ag Procédé et dispositif pour contrôler la répartition de densité dans une nappe de particules dispersée
EP0089013A1 (fr) * 1982-03-12 1983-09-21 DEUTSCHE FIBRIT GESELLSCHAFT Ebers & Dr. Müller mbH Procédé de fabrication de corps plats de forme quelconque avec des composés de bois défibré
EP0162118A1 (fr) * 1984-04-16 1985-11-27 Bison-Werke Bähre & Greten GmbH & Co. KG Procédé et dispositif pour obtenir une répartition prédéterminée de poids par unité de surface dans une première couche de fibres
EP0225629A2 (fr) * 1985-12-09 1987-06-16 Toyota Jidosha Kabushiki Kaisha Produits de bois moulés
EP0264746A2 (fr) * 1986-10-12 1988-04-27 Daiwa Co., Ltd. Appareil pour recouvrir l'arrière d'un tapis de voiture
US4904517A (en) * 1987-11-27 1990-02-27 Macmillan Bloedel Research Ribbed waferboard product

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
HOLZ ALS ROH- UND WERKSTOFF Bd. 45, Nr. 10, Oktober 1987, BERLIN Seiten 429 - 437; LOBENHOFFER: 'Verfahren zur optimalen Regelung eines Formstrangs zur Herstellung von' *

Also Published As

Publication number Publication date
EP0507731B1 (fr) 1994-12-14
ES2065769T3 (es) 1995-02-16
CH683406A5 (de) 1994-03-15
BR9201041A (pt) 1992-11-24
CA2063966A1 (fr) 1992-09-27
DE59200932D1 (de) 1995-01-26
US5215696A (en) 1993-06-01
JPH05169478A (ja) 1993-07-09

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