EP0378757A2 - Procédé et dispositif pour fabriquer des objets sculptés pressés - Google Patents

Procédé et dispositif pour fabriquer des objets sculptés pressés Download PDF

Info

Publication number: EP0378757A2
Authority: EP; European Patent Office
Prior art keywords: pressing tool; hot; press; molding compound; tool lower
Prior art date: 1989-01-20
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

EP89119453A

Other languages

German (de)

English (en)

Other versions

EP0378757B1 (fr

EP0378757A3 (fr

Inventor

Norbert Jenniges

Hubertus Kropff

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.)

Rain Carbon Germany GmbH

Original Assignee

Ruetgerswerke 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.)

1989-01-20

Filing date

1989-10-20

Publication date

1990-07-25

1989-10-20 Application filed by Ruetgerswerke AG filed Critical Ruetgerswerke AG

1989-10-20 Priority to AT89119453T priority Critical patent/ATE93443T1/de

1990-07-25 Publication of EP0378757A2 publication Critical patent/EP0378757A2/fr

1991-11-06 Publication of EP0378757A3 publication Critical patent/EP0378757A3/fr

1993-08-25 Application granted granted Critical

1993-08-25 Publication of EP0378757B1 publication Critical patent/EP0378757B1/fr

2009-10-20 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Images

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
- B27N5/00—Manufacture of non-flat articles

Definitions

the invention relates to a method for producing pressed profile bodies from a non-rising mixture of fillers mixed with a thermosetting binder. From DE-PS 23 09 975 such a method is known, in which the mixture is pre-pressed in such a way and then cured to its final shape in a hot press that a cold pressing tool lower part filled with the undensified mixture is inserted into a press and there when the press is closed with simultaneous pre-pressing, it is pressed into the upper part of the hot pressing tool that a second, lower part of the pressing tool is then inserted instead of the first lower part of the pressing tool.
the non-rising mixture often consists of lignocellulosic fibrous materials, such as shredded ones and dried wood shavings, bagasse fibers and the like. ⁇ ., which are mixed with a thermosetting resin such as melamine, urea formaldehyde or phenol formaldehyde resin.
a thermosetting resin such as melamine, urea formaldehyde or phenol formaldehyde resin.
fibers of other materials such as glass fibers, rock wool, can be used alone or in a mixture thereof, to which appropriate, preferably organic binders have been added.
the known method is intended for the production of relatively small profiled bodies, such as round blanks from a diameter of five centimeters, or grid-like networks consisting of rings and connecting webs with small wall thicknesses, such as decorative grids or ceiling grid elements.
the moldings produced by this process have a perfectly shaped visible surface and are of sufficient quality, even if the back must generally be reworked by grinding or milling.
the method is very complex since, like all known methods, it works at least in two stages, i. H. with a pre-press and a hot press tool.
This method (EP 0 177 628 A1), in which the preform is implemented twice, is designed to be even more complex.
the object was therefore to develop a less time-consuming and costly process for the production of the moldings described, with which they can be produced without an unacceptable loss of quality.
the object is achieved by a method in which a cold pressing tool lower part filled with the molding compound is inserted into the hot press, there the pressing compound is pressed while closing the hot press with simultaneous pre-compression into a hot pressing tool upper part and pressed into its final shape without changing the pressing tool lower part and is cured.
a device is used to carry out the new method, in which the hot press is equipped with a liftable and lowerable, heatable hot pressing tool upper part and two pressing tool lower parts, the pressing tool lower parts being arranged to be movable alternately under the hot pressing tool upper part, into the hot pressing tool upper part of the spatial shape of the profile body corresponding depressions are embedded, which are surrounded by an edge increasing the height of each depression, and each Pressing tool lower part with the molding compound to be filled with cavities and a surrounding frame, which is provided with a reversible lifting and lowering device, in which the frame can be lowered during pressing that the bottoms of the cavities, press the molding compound so far into the depressions of the hot pressing tool part can that the profile body is compressed to its final shape.
the invention is explained in more detail below using an exemplary embodiment.
the figure shows schematically the side view of an embodiment of the device for performing the method.
the hot pressing tool upper part 2 is fastened in a lowerable manner in the frame 1 of the press.
the pressing tool lower parts 4 and 5 are horizontally displaceable.
the pressing tool lower part 4 is shown in the filling position and has a frame 7 which surrounds the cavities 6 to be filled with the molding compound and which - as indicated by the springs 8 - is provided with a reversible lifting and lowering device.
the frame 7 can, as indicated by the holes 9, be provided with cooling.
the depressions 10 corresponding to the shape of the profile body are embedded in the hot pressing tool upper part 2.
the height of the depression is increased by the edge 11 attached to the lower part of the hot pressing tool 2.
the floors 12 of the cavities 6 of the pressing tool lower parts 4 and 5 fit exactly into the areas left free at the edge 11
the hot pressing tool upper part is provided with heating coils 13.
An amount of molding compound is filled into the pressing tool lower part 5 such that the cavities 6 are completely filled.
the pressing tool lower part 5 is then moved horizontally until the cavities 6 and the depressions 10 in the hot pressing tool upper part 2 are aligned, and then the hot pressing tool upper part 2 is lowered. As soon as it has reached the pressing tool lower part 5, it takes its frame 7 with it.
the molding compound located in the cavities 6 is increasingly compressed and pressed into the recesses 10 in a pre-compressed form.
the hot pressing tool upper part 2 has reached its lowest position, the bottoms 12 have penetrated so far into the areas left at the edge 11 that the molding compound in the depressions 10 is compressed to its final shape and is cured by the heaters 13 switched on in the hot pressing tool upper part 2.
the finished profile bodies are then ejected by the ejectors 14.
the pressing tool lower part 4 is filled with the molding compound and is now moved into the press, the pressing tool lower part 5 assuming the dashed position where the profile body is removed and the molding compound is filled in for the next cycle.
the bottoms 12 of the cavities 6 in the press tool lower parts can be provided with heating and / or a cooling device.

Landscapes

Life Sciences & Earth Sciences (AREA)
Engineering & Computer Science (AREA)
Manufacturing & Machinery (AREA)
Wood Science & Technology (AREA)
Forests & Forestry (AREA)
Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Press Drives And Press Lines (AREA)

EP89119453A 1989-01-20 1989-10-20 Procédé et dispositif pour fabriquer des objets sculptés pressés Expired - Lifetime EP0378757B1 (fr)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
AT89119453T ATE93443T1 (de)	1989-01-20	1989-10-20	Verfahren und vorrichtung zur herstellung von gepressten profilkoerpern.

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE3901572		1989-01-20
DE3901572A DE3901572A1 (de)	1989-01-20	1989-01-20	Verfahren und vorrichtung zur herstellung von gepressten profilkoerpern

Publications (3)

Publication Number	Publication Date
EP0378757A2 true EP0378757A2 (fr)	1990-07-25
EP0378757A3 EP0378757A3 (fr)	1991-11-06
EP0378757B1 EP0378757B1 (fr)	1993-08-25

Family

ID=6372441

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP89119453A Expired - Lifetime EP0378757B1 (fr)	1989-01-20	1989-10-20	Procédé et dispositif pour fabriquer des objets sculptés pressés

Country Status (3)

Country	Link
EP (1)	EP0378757B1 (fr)
AT (1)	ATE93443T1 (fr)
DE (2)	DE3901572A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE102005012106B4 (de) *	2005-03-09	2012-06-28	Decoma (Germany) Gmbh	Werkzeug und Vorrichtung zum Prägen

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1528297A1 (de) *	1964-11-25	1970-02-05	Winsnes Per Oystein	Vorrichtung zur Herstellung von geformten Teilen aus Fasermasse,Holzspan oder andere
CH436698A (de) *	1966-08-03	1967-05-31	Plastopress Ag	Verfahren zur Herstellung eines insbesondere das Aussehen von massivem Holz aufweisenden Gegenstandes
SE392420B (sv) *	1972-05-08	1977-03-28	Svensk Hardbetongteknik Ab	Forfarande och anleggning for framstellning av produkter av plastmassa, hoggradigt tillsatt med fyllnadsmaterial
DE2838167A1 (de) *	1978-09-01	1980-03-13	Volkswagenwerk Ag	Formwerkzeug zum verformen von matten aus mit bindemitteln versetztem holzfasermaterial
DE3108414A1 (de) *	1981-03-06	1982-09-23	Furnier- Und Sperrholzwerk J.F. Werz Jr. Kg Werzalit-Pressholzwerk, 7141 Oberstenfeld	Vorrichtung zur herstellung von aus einem nicht steigfaehigen gemisch von faserstoffen und bindemitteln gepressten profilkoerpern
EP0131638B1 (fr) *	1983-07-09	1987-11-25	Werzalit - Werke J.F. Werz KG	Dispositif pour fabriquer des objets de forme pressés
CA1291614C (fr) *	1985-12-09	1991-11-05	Sadao Ikeda	Methode de fabrication de produits moules en bois

1989
- 1989-01-20 DE DE3901572A patent/DE3901572A1/de not_active Withdrawn
- 1989-10-20 AT AT89119453T patent/ATE93443T1/de not_active IP Right Cessation
- 1989-10-20 DE DE89119453T patent/DE58905393D1/de not_active Expired - Fee Related
- 1989-10-20 EP EP89119453A patent/EP0378757B1/fr not_active Expired - Lifetime

Also Published As

Publication number	Publication date
DE3901572A1 (de)	1990-08-02
DE58905393D1 (de)	1993-09-30
EP0378757B1 (fr)	1993-08-25
EP0378757A3 (fr)	1991-11-06
ATE93443T1 (de)	1993-09-15

Publication	Publication Date	Title
DE3712972C2 (de)	1998-07-16	Warmformgepreßter Gegenstand und Verfahren zum Warmformpressen
DE2548739C3 (de)	1978-09-21	Verfahren zur Herstellung von gepreßten Profilkörpern aus einem nicht steigfähigen Gemisch t
DE69925737T2 (de)	2006-03-23	Verfahren zur herstellung von formgepressten türverkleidungen aus flächigem holzverbundwerkstoff, sowie die so erhaltene türverkleidung und tür
DE69936870T2 (de)	2007-12-20	Verfahren zum dampfpressen einer platte aus verbundwerkstoff mit mindestens einer bearbeiteten oberfläche
EP1420127B1 (fr)	2007-02-28	Panneau et procédé de fabrication d'un panneau
DE69511242T2 (de)	1999-12-02	Verfahren zum herstellen von lignocelluloseplatten
EP0344231A1 (fr)	1989-12-06	Procede de fabrication d'un corps en resine synthetique, eventuellement en forme de panneau, moule par compression et produit preliminaire utilise dans ce procede
DE3522910A1 (de)	1986-03-27	Verfahren und vorrichtung zur herstellung von bloecken aus beliebigem material und bloecke als unmittelbares erzeugnis dieses verfahrens
DE4030586A1 (de)	1991-04-11	Verfahren zum formpressen von plattenfoermigem holzfasermaterial sowie durch formpressen hergestellte plattenfoermige holzfaserelemente, beispielsweise tuerschalen oder tuerelemente
DE10161929A1 (de)	2003-06-18	Platte aus einem planebenen Kern und mit diesem verbundenen gewölbten Teilen und Verfahren zur Herstellung einer derartigen Platte
DE3686244T2 (de)	1993-01-07	Herstellungsverfahren geformter holzprodukte.
CH346362A (de)	1960-05-15	Vorrichtung zum Pressen von Hohlkörpern
EP0177628B1 (fr)	1989-03-22	Procédé et dispositif pour la fabrication d'articles profilés par pressage
EP0131638B1 (fr)	1987-11-25	Dispositif pour fabriquer des objets de forme pressés
DE2547499A1 (de)	1977-04-28	Verfahren zum unloesbaren befestigen einer dekor-auflage auf traegern
EP0406783A2 (fr)	1991-01-09	Procédé de fabrication d'objets creux à partir de fibres lignocellulosiques
EP0378757A2 (fr)	1990-07-25	Procédé et dispositif pour fabriquer des objets sculptés pressés
EP0123697B1 (fr)	1990-06-27	Presse pour la fabrication de corps profilés
DE2309975C3 (de)	1977-08-04	Verfahren und Vorrichtung zur Herstellung von aus einem nicht steigfähigen Gemisch aus Faserstoffen und Bindemitteln gepreßten Profilkörpern
EP0117256B1 (fr)	1986-07-30	Presse pour la fabrication de corps profilés
DE3108414A1 (de)	1982-09-23	Vorrichtung zur herstellung von aus einem nicht steigfaehigen gemisch von faserstoffen und bindemitteln gepressten profilkoerpern
EP0084074B1 (fr)	1986-01-02	Procédé de fabrication d'objets pressés en forme à partir d'un mélange non expansible
DE68903544T2 (de)	1993-04-01	Methode zur herstellung von faserplatten.
DE2309975B2 (de)	1976-12-16	Verfahren und vorrichtung zur herstellung von aus einem nicht steigfaehigen gemisch aus faserstoffen und bindemitteln gepressten profilkoerpern
DE8106306U1 (de)	1983-02-10	Vorrichtung zur herstellung von aus einem nicht steigfaehigen gemisch von faserstoffen und bindemitteln gepressten profilkoerpern

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1990-06-09	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
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1990-09-12	GBC	Gb: translation of claims filed (gb section 78(7)/1977)
1990-09-28	EL	Fr: translation of claims filed
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