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EP0908281B1 - Method and apparatus for manufacturing moulded articles - Google Patents

Method and apparatus for manufacturing moulded articles Download PDF

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Publication number
EP0908281B1
EP0908281B1 EP97117550A EP97117550A EP0908281B1 EP 0908281 B1 EP0908281 B1 EP 0908281B1 EP 97117550 A EP97117550 A EP 97117550A EP 97117550 A EP97117550 A EP 97117550A EP 0908281 B1 EP0908281 B1 EP 0908281B1
Authority
EP
European Patent Office
Prior art keywords
pressing
stroke
press
mixture
mold
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.)
Expired - Lifetime
Application number
EP97117550A
Other languages
German (de)
French (fr)
Other versions
EP0908281A1 (en
Inventor
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
Application filed by Werzalit AG and Co KG filed Critical Werzalit AG and Co KG
Priority to ES97117550T priority Critical patent/ES2222492T3/en
Priority to EP97117550A priority patent/EP0908281B1/en
Priority to AT97117550T priority patent/ATE268252T1/en
Priority to DE59711690T priority patent/DE59711690D1/en
Priority to US09/139,911 priority patent/US5972262A/en
Priority to JP10287782A priority patent/JPH11188749A/en
Publication of EP0908281A1 publication Critical patent/EP0908281A1/en
Application granted granted Critical
Publication of EP0908281B1 publication Critical patent/EP0908281B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/22—Extrusion presses; Dies therefor
    • B30B11/26—Extrusion presses; Dies therefor using press rams
    • B30B11/265—Extrusion presses; Dies therefor using press rams with precompression means
    • 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
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08—Moulding or pressing
    • B27N3/28—Moulding or pressing characterised by using extrusion presses

Definitions

  • the invention relates to a method for producing Molded parts made from a non-flowable mixture of chip and / or Fiber materials and thermosetting binders, where the mixture in a press with all sides closed mold pressed and hardened and in which a part of those required for curing Amount of heat due to pressing into the mixture imported hot gases or vapors is applied, which in the mixture in the mold in a Direction is introduced, which is essentially is perpendicular to the pressing direction.
  • the technical problem underlying the invention is to continue the known method in the manner to develop that molded parts are manufactured endlessly can whose volume is fully cured.
  • This technical problem is solved according to the invention in that the mixture in the mold is pressed by at least two press strokes in such a way that the mold is closed on the first press stroke, the mixture being slightly compressed, and the mixture is pressed on the second press stroke, whereby the hot gases or vapors are introduced into the mixture after the first press stroke and the mixture is additionally heated by a heating device after the second press stroke.
  • This procedure allows one to mix from the mixture endlessly produce strand-shaped molding, which the amount of heat required during the pressing process sufficient and even in volume has been distributed distributed.
  • the end product is a strand-shaped molded part, which has a uniform hardness having.
  • the strand-shaped molding can after Harden the mixture into the required sizes become.
  • the Press device a tube 1 of greater length, i.e. the length of the tube is a multiple of the press stroke.
  • the plunger 2 is arranged to be longitudinally displaceable.
  • the filling opening 3 is provided laterally in the tube 1, which is at the end of the filling shaft 4, by which the mixture to be pressed into the mold inside the tube 1 is transported. Seen in the pressing direction are behind the filling opening in the pipe wall Feed channels 5 for the hot gases or vapors provided which via the manifold 6 with a (Not shown) reservoir are connected.
  • a heater 7 is provided in the tube wall, for example an electrical or a hot liquid operated heating.
  • the surface of the plunger is structured, for example with corrugation 8 Mistake.
  • Fig.1 Pressing device The mode of operation shown in Fig.1 Pressing device is as follows: In the one shown in Fig. 1 Position of the plunger can be the mixture to be pressed through the filling shaft 4 and the filling opening 3 in the Press mold 9 arrive. When the mold 9 is filled, the plunger 2 causes the first press stroke execute, causing the plunger to the end of the Arrow 10 is moved. This is the right end the mold has been closed. Now that will be minor compressed mixture through from the supply channels 5 introduced hot gases or vapors and through the heater 7 such a quantity of heat supplied, which for curing of the binder in the mixture is required.
  • the plunger 2 is caused to the second Execute press stroke, as shown by arrow 11.
  • the mixture will reach its final density pressed and hardens.
  • the Plunger 2 that is already in the pressing device Form part 12 pushed.
  • the corrugation 8 in the plunger 2 ensures that a corresponding corrugation also the end faces of the pressed molded parts, so that they connect more easily into a strand.
  • the inner contour of the tube 1 is corresponding to that manufactured molded part.
  • the tube 1 can for example have a circular cross section.
  • the cross section can also be square or polygonal his. It is also possible. that the cross section in Press area reduced, so that the second press stroke still there is an additional pressing pressure from the circumference.
  • FIG Press device are the parts that function in their function the parts of the pressing device shown in Fig. 1 are identical, provided with the same reference numerals. There is a difference between the pressing devices in that the tube 1 obliquely with respect to the horizontal is arranged. In this way, the filling of the Mixture in the mold 9 can be facilitated.
  • the plunger 2 is hollow and in it the tubular extension 13 arranged, the rear End can be connected to a feed line 14, so that after the first press stroke also hot gases or vapors from the inside be introduced into the slightly compressed mixture can.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)

Abstract

The material mixture is within an enclosed press mold (9), compressed in two stroke movements. During the first stroke, the mold (9) is closed so that the mixture is lightly compressed and, in the second stroke, is fully compressed. In an Independent claim the press has a long tube (1) containing a press piston (2) with a longitudinal movement within it. A radial filling opening (3) is at the press mold (9), together with a number of other openings (5) to deliver hot gas or steam into the mold from at least one reservoir collection channel (6). The movements of the press piston (2) are controlled to give a light pressure stroke followed by a higher pressure stroke. The hot gas or steam is fed into the press mold after the first press stroke movement. After the second press stroke, the compressed material temp. is raised additionally by a heater (7). The press assembly is aligned at an angle or vertically. The press piston (2) is hollow, with a tubular extension into the press zone, and a feed channel at its trailing end for hot gas or steam and vapor escape openings at the leading end. The press piston has a structured surface (8) towards the compression zone of the mold. The filling system has a filling shaft (4), parallel to the press mold, with its lower section open to the press stroke zone and a horizontal filling plunger sliding towards the stroke movement zone of the press mold.

Description

Die Erfindung betrifft ein Verfahren zur Herstellung von Formteilen aus einem nicht fließfähigen Gemisch von Spanund/oder Faserwerkstoffen und wärmehärtbaren Bindemitteln, bei dem das Gemisch in einer Presse mit allseitig geschlossener Preßform fertiggepreßt und dabei ausgehärtet wird und bei dem ein Teil der zum Aushärten benötigten Wärmemenge durch während des Pressens in das Gemisch eingeführte heiße Gase oder Dämpfe aufgebracht wird , welche in das in der Preßform befindliche Gemisch in einer Richtung eingebracht wird , welche im wesentlichen rechtwinklig zur Preßrichtung ist.The invention relates to a method for producing Molded parts made from a non-flowable mixture of chip and / or Fiber materials and thermosetting binders, where the mixture in a press with all sides closed mold pressed and hardened and in which a part of those required for curing Amount of heat due to pressing into the mixture imported hot gases or vapors is applied, which in the mixture in the mold in a Direction is introduced, which is essentially is perpendicular to the pressing direction.

Ein solches Verfahren ist bekannt ( EP-A-0 443 053 ).Es hat sich in der Praxis bei der Herstellung von solchen Formteilen bewährt , welche als Einzelstücke oder als Mehrfachnutzen hergestellt werden.Such a method is known (EP-A-0 443 053) has been in practice in the manufacture of such Proven molded parts, which as individual pieces or as Multiple uses can be produced.

Das der Erfindung zugrunde liegende technische Problem besteht darin, das bekannte Verfahren in der Weise weiter zu entwickeln , daß Formteile endlos hergestellt werden können, deren Volumen vollständig ausgehärtet ist.The technical problem underlying the invention is to continue the known method in the manner to develop that molded parts are manufactured endlessly can whose volume is fully cured.

Dieses technische Problem ist erfindungsgemäß dadurch gelöst, daß das in der Preßform befindliche Gemisch durch wenigstens zwei Preßhübe in der Weise gepreßt wird, daß beim ersten Preßhub die Preßform geschlossen wird, wobei das Gemisch gering verdichtet wird, und das Gemisch beim zweiten Preßhub fertiggepreßt wird wobei
die heißen Gase oder Dämpfe nach dem ersten Preßhub in das Gemisch eingeführt werden und das Gemisch nach dem zweiten Preßhub zusätzlich von einer Heizeinrichtung geheizt wird.This technical problem is solved according to the invention in that the mixture in the mold is pressed by at least two press strokes in such a way that the mold is closed on the first press stroke, the mixture being slightly compressed, and the mixture is pressed on the second press stroke, whereby
the hot gases or vapors are introduced into the mixture after the first press stroke and the mixture is additionally heated by a heating device after the second press stroke.

Dieses Verfahren gestattet es, aus dem Gemisch ein strangförmiges Formteil endlos herzustellen, welchem während des Preßvorganges die erforderliche Wärmemenge in ausreichender Weise und in dem Volumen gleichmäßig verteilt zugeführt worden ist. Das Endprodukt ist ein strangförmiges Formteil, welches eine gleichmäßige Härte aufweist. Das strangförmige Formteil kann nach dem Aushärten des Gemischs in die benötigten Größen zerteilt werden.This procedure allows one to mix from the mixture endlessly produce strand-shaped molding, which the amount of heat required during the pressing process sufficient and even in volume has been distributed distributed. The end product is a strand-shaped molded part, which has a uniform hardness having. The strand-shaped molding can after Harden the mixture into the required sizes become.

Vorteilhafte Vorrichtungen zur Durchführung des Verfahrens sind in den Ansprüchen 3 bis 8 enthalten. Verfahren und Vorrichtung sind nachstehend anhand der Figuren 1 bis 3 erläutert. Es zeigen :

Fig. 1
ein Ausführungsbeispiel der Vorrichtung zur Durchführung des Verfahrens, bei welcher die Preßform horizontal angeordnet ist,
Fig. 2
ein Ausführungsbeispiel der Vorrichtung zur Durchführung des Verfahrens, bei welcher die Preßform schräg angeordnet ist und
Fig. 3
ein Ausführungsbeispiel der Vorrichtung zur Durchführung des Verfahrens, bei welcher die Preßform vertikal angeordnet ist.
Advantageous devices for performing the method are contained in claims 3 to 8. The method and the device are explained below with reference to FIGS. 1 to 3. Show it :
Fig. 1
An embodiment of the device for performing the method, in which the mold is arranged horizontally,
Fig. 2
an embodiment of the device for performing the method in which the mold is arranged obliquely and
Fig. 3
an embodiment of the device for performing the method in which the mold is arranged vertically.

Wie aus Fig. 1 zu erkennen ist, enthält die Preßvorrichtung ein Rohr 1 größerer Länge,d.h. die Länge des Rohres beträgt ein Vielfaches des Preßhubes . Im Rohr 1 ist längsverschiebbar der Preßkolben 2 angeordnet. Seitlich im Rohr 1 ist die Füllöffnung 3 vorgesehen, welche sich am Ende des Füllschachtes 4 befindet, durch welche das zu pressende Gemisch in die Preßform im Inneren des Rohres 1 befördert wird. In Preßrichtung gesehen hinter der Füllöffnung sind in der Rohrwand Zuführungskanäle 5 für die heißen Gase oder Dämpfe vorgesehen, welche über die Sammelleitung 6 mit einem (nicht gezeigten ) Reservoir verbunden sind. Außerdem ist in der Rohrwandung eine Heizung 7 vorgesehen,beispielweise eine elektrisch oder durch eine heiße Flüssigkeit betriebene Heizung. Die Oberfläche des Preßkolbens ist strukturiert, beispielweise mit einer Riffelung 8 versehen.As can be seen from Fig. 1, the Press device a tube 1 of greater length, i.e. the length of the tube is a multiple of the press stroke. In the pipe 1, the plunger 2 is arranged to be longitudinally displaceable. The filling opening 3 is provided laterally in the tube 1, which is at the end of the filling shaft 4, by which the mixture to be pressed into the mold inside the tube 1 is transported. Seen in the pressing direction are behind the filling opening in the pipe wall Feed channels 5 for the hot gases or vapors provided which via the manifold 6 with a (Not shown) reservoir are connected. Besides, is A heater 7 is provided in the tube wall, for example an electrical or a hot liquid operated heating. The surface of the plunger is structured, for example with corrugation 8 Mistake.

Die Funktionswise der aus Fig.1 ersichtlichen Preßvorrichtung ist wie folgt :Bei der in Fig. 1 gezeigten Stellung des Preßkolbens kann das zu pressende Gemisch durch den Füllschacht 4 und die Füllöffnung 3 in die Preßform 9 gelangen. Wenn die Preßform 9 gefüllt ist, wird der Preßkolben 2 veranlaßt, den ersten Preßhub auszuführen, wodurch der Preßkolben bis an das Ende des Pfeiles 10 verschoben wird. Dadurch ist das rechte Ende der Preßform verschlossen worden. Nun wird dem geringfügig komprimierten Gemisch durch aus den Zuführungskanälen 5 eingeleitete heiße Gase oder Dämpfe und durch die Heizung 7 eine solche Wärmemenge zugeführt, welche zur Aushärtung des im Gemisch befindlichen Bindemittels benötigt wird. The mode of operation shown in Fig.1 Pressing device is as follows: In the one shown in Fig. 1 Position of the plunger can be the mixture to be pressed through the filling shaft 4 and the filling opening 3 in the Press mold 9 arrive. When the mold 9 is filled, the plunger 2 causes the first press stroke execute, causing the plunger to the end of the Arrow 10 is moved. This is the right end the mold has been closed. Now that will be minor compressed mixture through from the supply channels 5 introduced hot gases or vapors and through the heater 7 such a quantity of heat supplied, which for curing of the binder in the mixture is required.

Danach wird der Preßkolben 2 veranlaßt, den zweiten Preßhub auszuführen, wie durch den Pfeil 11 verdeutlicht. Dabei wird das Gemisch auf seine endgültige Dichte fertiggepreßt und härtet aus.Beim zweiten Preßhub hat der Preßkolben 2 das schon in der Preßvorrichtung befindliche Formteil 12 weitergeschoben. Die Riffelung 8 im Preßkolben 2 sorgt dafür, daß eine entsprechende Riffelung auch an den Endflächen der gepreßten Formteile entsteht, so daß sich diese leichter zu einem Strang verbinden.Then the plunger 2 is caused to the second Execute press stroke, as shown by arrow 11. The mixture will reach its final density pressed and hardens. On the second press stroke the Plunger 2 that is already in the pressing device Form part 12 pushed. The corrugation 8 in the plunger 2 ensures that a corresponding corrugation also the end faces of the pressed molded parts, so that they connect more easily into a strand.

Die Innenkontur des Rohres 1 ist entsprechend dem herzustellenden Formteil ausgebildet. Das Rohr 1 kann beispielsweise einen kreisförmigen Querschnitt aufweisen. Der Querschnitt kann aber auch quadratisch oder mehreckig sein. Es ist auch möglich. daß sich der Querschnitt im Preßbereich verringert , so daß beim zweiten Preßhub noch ein zusätzlicher Preßdruck vom Umfang her erfolgt.The inner contour of the tube 1 is corresponding to that manufactured molded part. The tube 1 can for example have a circular cross section. The cross section can also be square or polygonal his. It is also possible. that the cross section in Press area reduced, so that the second press stroke still there is an additional pressing pressure from the circumference.

Bei der in Fig. 2 gezeigten Ausführungsform der Preßvorrichtung sind die Teile, die in ihrer Funktion mit den Teilen der in Fig. 1 gezeigten Preßvorrichtung identisch sind, mit den gleichen Bezugszeichen versehen. Ein Unterschied zwischen den Preßvorrichtungen besteht darin, daß das Rohr 1 gegenüber der Horizontalen schräg angeordnet ist. Auf diese Weise kann das Einfüllen des Gemischs in die Preßform 9 erleichtert werden. Außerdem ist der Preßkolben 2 hohl ausgebildet und in ihm die rohrförmige Verlängerung 13 angeordnet, deren hinteres Ende mit einer Zuleitung 14 verbindbar ist, so daß nach dem ersten Preßhub auch von innen heiße Gase oder Dämpfe in das geringfügig verdichtete Gemisch eingeleitet werden können. In the embodiment shown in FIG Press device are the parts that function in their function the parts of the pressing device shown in Fig. 1 are identical, provided with the same reference numerals. There is a difference between the pressing devices in that the tube 1 obliquely with respect to the horizontal is arranged. In this way, the filling of the Mixture in the mold 9 can be facilitated. Moreover the plunger 2 is hollow and in it the tubular extension 13 arranged, the rear End can be connected to a feed line 14, so that after the first press stroke also hot gases or vapors from the inside be introduced into the slightly compressed mixture can.

Die Preßvorrichtung gemäß Fig. 3 ist senkrecht angeordnet und der Füllschacht 4 erstreckt sich parallel zum Rohr 1. Zum Einbringen des Gemischs in die Preßform 9 ist ein in einer im rechten Winkel zu Füllschacht 4 angeordnete Führung 15 geführter Füllschieber 16 vorgesehen.3 is arranged vertically and the filling shaft 4 extends parallel to the pipe 1. To introduce the mixture into the mold 9 is a one arranged at right angles to filling shaft 4 Guide 15 guided fill slide 16 provided.

Claims (8)

  1. A method of producing shaped parts compressed from a non-flowable mixture consisting of chips or shavings and/or fibrous materials mixed with heat-hardenable binding agents, with the mixture being subjected to the finish pressing in a power press comprising a pressing mould closed on all sides, and hardened in the course of this, and with part of the heat energy required for the hardening being produced by hot gases or fumes introduced into the mixture during the pressig procedure, said hot gases or fumes are introduced into said mixture as contained inside said pressing mould, in a direction extending essentially rectangularly in relation to the pressing direction, said mixture in the pressing mould (9) being pressed in that way by at least two pressing strokes, and the pressing piston (2) being shifted and the thus the feed opening (3) of the pressing mould being closed, whereupon the mixture being low compressed and the mixture being finish pressed at the second stroke, characterized in that the hot gases or fumes being introduced into the mixture after the first pressing stroke and that after the second pressing stroke the mixture being additionally heated by a heating device (7).
  2. Device for producing shaped parts compressed from a non-flowable mixture consisting of chips or shavings and/or fibrous materials mixed with heat-hardenable binding agents, charaterized by the following features:
    a) the pressing device has a tube (1) of larger length in which a pressing piston (2) is shiftably arranged in a longitudal way,
    b) at the pressing mould (9) a radial arranged feed opening (3) is provided,
    c) adjacent at the feed opening (3), when looking in direction of the stroke, and within the stroke section of the pressing piston (2) a plurality of feeding channels (5) is arranged in the tube wall which disemboguing in at least one collecting line (6) being connected with a reservoir for the hot gases or fumes, and which introduce the hot gases or fumes in a direction being essential rectangulary in relation to the pressing direction,
    d) the pressing piston (2) being controllable in that it when being actuated firstly performs a low first pressing stroke and afterwards a huger second pressing stroke, that the pressing mould is closed, that the hot gases or fumes are introduced after the first pressing stroke into the mixture, and that the mixture is additionally heated after the second pressing stroke by a heating device.
  3. Device according to claim 2,
    characterized in that the pressing device is horizontally arranged.
  4. Device according to claim 2,
       characterized in that the pressing device is tiltedly arranged.
  5. Device according to claim 2,
       characterized in that the pressing device is vertically arranged.
  6. Device according to one of claims 2 to 5,
    characterized by the following features:
    a) the presseing piston (2) is cavernously built and provided with an tubular extension (13) which is protruding into the pressing mould,
    b) the ventral end of the tubular extension being connectably provided with an inlet pipe (14) for hot gases or fumes,
    c) in the front section of the tubular extension within the compressing area of the mixture there are provided exhaust openings.
  7. Device according to one of claims 2 to 6,
    characterized in that the surface of the pressing piston being oriented towards the compressing section is provided with a structure.
  8. Device according to claims 2, 5, 6 and 7,
    characterized in that filling device is consisting of a feeding chute (4) which is parallel arranged to the pressing mould, the lower end of it being opened in direction to the stroke area and in which a feeding slide (16) being horizontally shiftable in direction of the stroke area is provided.
EP97117550A 1997-10-10 1997-10-10 Method and apparatus for manufacturing moulded articles Expired - Lifetime EP0908281B1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
ES97117550T ES2222492T3 (en) 1997-10-10 1997-10-10 PROCEDURE AND DEVICE FOR THE MANUFACTURE OF PREFORMED PARTS.
EP97117550A EP0908281B1 (en) 1997-10-10 1997-10-10 Method and apparatus for manufacturing moulded articles
AT97117550T ATE268252T1 (en) 1997-10-10 1997-10-10 METHOD AND DEVICE FOR PRODUCING MOLDED PARTS
DE59711690T DE59711690D1 (en) 1997-10-10 1997-10-10 Method and device for producing molded parts
US09/139,911 US5972262A (en) 1997-10-10 1998-08-26 Method of and device for producing shaped parts
JP10287782A JPH11188749A (en) 1997-10-10 1998-10-09 Method and apparatus for producing molded articles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP97117550A EP0908281B1 (en) 1997-10-10 1997-10-10 Method and apparatus for manufacturing moulded articles

Publications (2)

Publication Number Publication Date
EP0908281A1 EP0908281A1 (en) 1999-04-14
EP0908281B1 true EP0908281B1 (en) 2004-06-02

Family

ID=8227463

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97117550A Expired - Lifetime EP0908281B1 (en) 1997-10-10 1997-10-10 Method and apparatus for manufacturing moulded articles

Country Status (6)

Country Link
US (1) US5972262A (en)
EP (1) EP0908281B1 (en)
JP (1) JPH11188749A (en)
AT (1) ATE268252T1 (en)
DE (1) DE59711690D1 (en)
ES (1) ES2222492T3 (en)

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US10414064B1 (en) 2019-03-14 2019-09-17 Agriboard International, Llc Efficient method and apparatus for producing compressed structural fiberboard
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DE3844192A1 (en) * 1988-12-29 1990-07-05 Karl Schedlbauer METHOD AND DEVICE FOR CONTROLLING THE COMPRESSION AND / OR FOR GENERATING A HIGHER COMPRESSED EDGE ZONE WITH IMPROVED SURFACE IN THE EXTRACTION OF SMALL PARTS, IN PARTICULAR VEGETABLE SMALL PARTS WITH BINDERS
CA2009909A1 (en) * 1989-02-14 1990-08-14 Thomas Tisch Production process and apparatus
EP0443053B1 (en) * 1990-02-20 1993-10-06 Werzalit Ag + Co. Method and device for the production of shaped parts
RU2041816C1 (en) * 1992-06-10 1995-08-20 Михаил Васильевич Бирюков Method of making the profiled pressed articles and device for its realization
US5413746A (en) * 1992-06-10 1995-05-09 Birjukov; Mikhail V. Method for molding shaped products and an apparatus for carrying out same

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EP0908281A1 (en) 1999-04-14
JPH11188749A (en) 1999-07-13
DE59711690D1 (en) 2004-07-08
ES2222492T3 (en) 2005-02-01
ATE268252T1 (en) 2004-06-15
US5972262A (en) 1999-10-26

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