EP0115552B1 - Apparatus for manufacturing moulded articles - Google Patents
Apparatus for manufacturing moulded articles Download PDFInfo
- Publication number
- EP0115552B1 EP0115552B1 EP83101104A EP83101104A EP0115552B1 EP 0115552 B1 EP0115552 B1 EP 0115552B1 EP 83101104 A EP83101104 A EP 83101104A EP 83101104 A EP83101104 A EP 83101104A EP 0115552 B1 EP0115552 B1 EP 0115552B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressed
- compound
- dividers
- pressing tool
- mixture
- 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
Links
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
-
- 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
- B27N5/02—Hollow articles
Definitions
- the invention relates to a device for the production of thin-walled molded parts from a non-rising mixture of fibers and a thermosetting synthetic resin with a pressing tool lower part, which has the mold cavities to be compressed, and a complementary pressing tool upper part, in which during the filling of the mixture to be pressed into the molding cavities of the molding tool lower part projecting molding compound dividers are provided.
- the invention relates to the production of such relatively thin-walled molded parts, in which at least two components of the molded part are at a steep angle to one another.
- the lower die part and the upper die part are provided with corresponding depressions or elevations.
- the mixture to be pressed is filled into the lower part of the pressing tool in the required quantity and filling level.
- the upper part of the pressing tool is subsequently retracted, it should compress the mixture, in particular in the depressions of the lower part of the pressing tool, towards the steep side faces.
- this can often not be achieved because the filled mixture has a bond due to its fibrous structure, which can no longer be separated by the retracting pressing tool upper part.
- a device has therefore already become known (DE-A-3 045 702) in which a stamp which is pushed approximately centrally into the bottom of the mold cavity and is actuated by a spring is arranged in the mold cavities of the press tool lower part.
- This known device is quite complex and presumably also susceptible because the stamp must be arranged in a sealed manner in each mold cavity in such a way that nothing of the material to be pressed can end up in the space into which the stamp is lowered during the pressing, but nevertheless the ease of movement of the stamp must be ensured.
- the object on which the invention is based is therefore to specify a device for producing molded parts from a non-ascending mixture which is simple in construction and easy to handle and yet permits uniform compression of the mixture to be pressed during pressing.
- This object is achieved in that the shape of the molding compound adapted to the shape of the mold cavities are attached to a frame and can be inserted with this before the filling of the mixture between the pressing tool part and the pressing tool part and lowered against the pressing tool part so that the molding compound parts in the Protrude mold cavities.
- the molding compound divider is used before the mixture to be pressed is poured into the pressing tool lower part.
- the molding compound divider can carry out a vibration in one or more direction (s) which includes an angle other than zero with the pressing direction.
- the molding compound divider is removed from the lower part of the pressing tool before the upper part of the pressing tool moves into the lower part of the pressing tool and presses the molded part in the desired manner without fluctuations in density
- the new device can be used in cold pressing and / or hot pressing.
- FIG. 7 shows the top view of the underside of a conical molding compound divider.
- FIG. 1 shows an exemplary embodiment of a possible molded part 1 to be produced with the device according to the invention.
- This molded part 1 is an angular strip, as is required, for example, for the protection of the edges when packaging cuboid devices such as electric cookers, washing machines or the like .
- Fig. 1 shows only the cross section of the angle bar whose longitudinal extension extends into the plane of the drawing with the cross section unchanged.
- angle strips 1 are generally not produced as individual molded parts, but the pressed molded part consists of a multiple arrangement as can be seen in FIG. 2 and from which the individual angle strips 1 are obtained by separating the lines 2.
- FIG. 3 shows a press with the molding compound dividers according to the invention, which are provided for producing a molded part, as shown in FIG. 2.
- the press has a press tool lower part 3, which is designed according to the shape of the molded part to be pressed.
- Fig. 3 illustrates that the shape of the pressing tool lower part 3 has very steep surfaces which can merge directly or with the interposition of a flat surface.
- the press in Fig. 3 is shown during the filling process i.e. the pressing tool upper part 4, which is also designed according to the molded part to be pressed, is in its upper end position.
- the molding compound dividers 6 are located between the pressing tool upper part 4 and the pressing tool lower part 3.
- the molding compound dividers have the shape of knife-like webs which are fastened parallel to one another on a frame (indicated by line 7). If necessary, the knife-like webs can even protrude to the bottom of the depressions in the lower press part 3.
- the molding compound dividers 6 have taken up their position in the press, the mixture is filled, for example, up to line 8 into the pressing tool lower part, the molding compound dividers also being able to vibrate during filling or after filling.
- the mixture for producing the molded part consists of fibers such as lignocellulose-containing fibers, crushed and dried wood chips, bagasse fibers and the like. and a thermosetting resin such as a melamine-urea formaldehyde or phenol formaldehyde resin.
- a thermosetting resin such as a melamine-urea formaldehyde or phenol formaldehyde resin.
- fibers of other materials such as glass fibers and others alone or a plurality of these mixed with one another, to which appropriate, preferably organic, binders have been added.
- the molding compound is removed from the space between the upper pressing section and the lower pressing section. Then the upper part of the pressing tool is lowered onto the lower part of the pressing tool and the molded part - if it is a one-step pressing process - is finished pressed.
- the press in FIGS. 3 and 4 is designed such that the pressing tool lower part 3 is stationary and the pressing tool upper part 4 is arranged to be movable vertically from top to bottom. In principle, however, it does not matter which of the pressing tools acts against the corresponding counter-tool on the molding compound from above. It is also possible that the lower tool is retracted upwards or that both tools are moved against each other.
- the molded part consists of a series of pot-like depressions with steep walls, which are kept at a distance from more or less flat surfaces arranged between them.
- Such molded parts have, for example, the shape of egg crates.
- the device for producing such molded parts is constructed in exactly the same way as the device shown in FIG. 3.
- Only the molding compound dividers projecting into the depression of the pressing tool must have a corresponding shape, for example a pyramid-shaped shape (FIG. 5), the shape of a cross-shaped knife arrangement (FIG. 6) or the shape of a cone (FIG. 7).
- Figures 5 to 7 show the top view from below of such a molding compound divider.
- any other shapes of the molding compound divider are also conceivable, but all the shapes are more or less similar to the shape of the molding to be pressed.
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)
- Compressor (AREA)
- Mechanical Operated Clutches (AREA)
- Moulding By Coating Moulds (AREA)
- Reinforced Plastic Materials (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
Abstract
Description
Die Erfindung betrifft eine Vorrichtung zur Herstellung von dünnwandigen Formteilen aus einem nicht steigfähigen Gemisch von Fasern und einem wärmehärtbaren Kunstharz mit einem Preßwerkzeugunterteil, welches das zu verpressende Gemisch aufnehmende Formhohlräume aufweist, und einem komplementär ausgebildeten Preßwerkzeugoberteil, bei der während des Einfüllens des zu verpressenden Gemisches in die Formhohlräume des Preßwerkzeugunterteils hineinragende Preßmasseteiler vorgesehen sind.The invention relates to a device for the production of thin-walled molded parts from a non-rising mixture of fibers and a thermosetting synthetic resin with a pressing tool lower part, which has the mold cavities to be compressed, and a complementary pressing tool upper part, in which during the filling of the mixture to be pressed into the molding cavities of the molding tool lower part projecting molding compound dividers are provided.
Eine derartige Vorrichtung ist aus der DE-A-3 045 702 bekannt.Such a device is known from DE-A-3 045 702.
Die Erfindung bezieht sich auf die Herstellung solcher verhältnismäßig dünnwandiger Formteile, bei denen wenigstens zwei Bestandteile der Formteiles unter einem steilen Winkel zueinander stehen. Für die Herstellung derartiger Formteile sind das Preßwerkzeugunterteil und das Preßwerkzeugoberteil mit entsprechenden Vertiefungen bzw. Erhöhungen versehen. Das zu verpressende Gemisch wird in der erforderlichen Menge und Füllhöhe in das Preßwerkzeugunterteil eingefüllt. Beim nachfolgenden Einfahren des Preßwerkzeugoberteits sollte dieses das Gemisch insbesondere in den Vertiefungen des Preßwerkzeugunterteils zu den steilen Seitenflächen hin verdichten. Das kann jedoch häufig nicht verwirklicht werden weil das eingefüllte Gemisch wegen seiner faserigen Struktur einen Verbund eingegangen ist, der durch das einfahrende Preßwerkzeugoberteil nicht mehr zu trennen ist.The invention relates to the production of such relatively thin-walled molded parts, in which at least two components of the molded part are at a steep angle to one another. For the production of such molded parts, the lower die part and the upper die part are provided with corresponding depressions or elevations. The mixture to be pressed is filled into the lower part of the pressing tool in the required quantity and filling level. When the upper part of the pressing tool is subsequently retracted, it should compress the mixture, in particular in the depressions of the lower part of the pressing tool, towards the steep side faces. However, this can often not be achieved because the filled mixture has a bond due to its fibrous structure, which can no longer be separated by the retracting pressing tool upper part.
Das führt zu einer unerwünschten Ansammlung einer zu großen Menge des zu verpressenden Gemisches am Boden der Vertiefungen des Preßwerkzeugunterteils und zu einer zu großen Verdichtung dieser Gemischmenge. Daraus resultiert wieder eine ungleichmäßige Dichte und daher eine ungteichmäßige Festigkeit des fertigen Formteils.This leads to an undesirable accumulation of too large an amount of the mixture to be pressed at the bottom of the depressions of the lower part of the press tool and to an excessive compression of this amount of mixture. This again results in an uneven density and therefore an uneven density of the finished molded part.
Es ist daher schon eine Vorrichtung bekannt geworden (DE-A-3 045 702) bei welcher in den Formhohlraumen des Preßwerkzeugunterteils ein etwa zentrisch in den Boden des Formhohlraumes schiebbaren Stempel angeordnet ist, welcher von einer Feder betätigt ist.A device has therefore already become known (DE-A-3 045 702) in which a stamp which is pushed approximately centrally into the bottom of the mold cavity and is actuated by a spring is arranged in the mold cavities of the press tool lower part.
Diese bekannte Vorrichtung ist recht aufwendig und vermutlich auch anfällig, weil der Stempel in jedem Formhohlraum derart abgedichtet andeordnet sein muß, daß nichts von dem zu pressenden Werkstoff in den Raum gelanden kann, in den der Stempel beim Pressen abgesenkt wird, aber dennoch stets die Leichtgängigkeit des Stempels sichergestellt sein muß.This known device is quite complex and presumably also susceptible because the stamp must be arranged in a sealed manner in each mold cavity in such a way that nothing of the material to be pressed can end up in the space into which the stamp is lowered during the pressing, but nevertheless the ease of movement of the stamp must be ensured.
Die der Erfindung zugrunde liegende Aufgabe besteht deshalb darin eine Vorrichtung zur Herstellung von Formteilen aus einem nicht steigfähigen gemisch anzugeben, welche einfach aufgebaut und einfach zu handhaben ist und dennoch eine gleichmäßige Verdichtung des zu verpressenden Gemisches beim Pressen gestattet.The object on which the invention is based is therefore to specify a device for producing molded parts from a non-ascending mixture which is simple in construction and easy to handle and yet permits uniform compression of the mixture to be pressed during pressing.
Diese Aufgabe ist erfindungsgemäß dadurch gelöst, daß die in ihrer Gestalt an die Gestalt der Formhohlraume angepaßten Preßmasseteiler an einem Rahmen befestigt sind und mit diesem vor dem Einfüllen des Gemisches derart zwischen Preßwerkzeugoberteil und Preßwerkzeugunterteil einführbar und gegen das Preßwerkzeugunterteil absenkbar sind, daß die Preßmasseteiler in die Formhohlraume hineinragen.This object is achieved in that the shape of the molding compound adapted to the shape of the mold cavities are attached to a frame and can be inserted with this before the filling of the mixture between the pressing tool part and the pressing tool part and lowered against the pressing tool part so that the molding compound parts in the Protrude mold cavities.
Bei der erfindungsgemäßen Vorrichtung wird der Preßmasseteiler vor dem Einfüllen des zu verpressenden Gemisches in das Preßwerkzeugunterteil eingesetzt. Während des Einfüllens oder nach dem Einfüllen des zu verpressenden Gemisches kann der Preßmasseteiler eine Vibration in einer oder mehreren Richtung(en) ausführen welche mit der Preßrichtung einen von Null verschiedenen Winkel einschließt. Nachdem die erforderliche Menge des zu verpressenden Gemisches in das Preßwerkzeugunterteil eingefüllt worden ist, wird der Preßmasseteiler aus dem Preßwerkzeugunterteil entfernt, bevor das Preßwerkzeugoberteil in das Preßwerkzeugunterteil einfährt und das Formteil in der erwünschten Weise ohne Dichteschwankungen preßtIn the device according to the invention, the molding compound divider is used before the mixture to be pressed is poured into the pressing tool lower part. During the filling or after the filling of the mixture to be pressed, the molding compound divider can carry out a vibration in one or more direction (s) which includes an angle other than zero with the pressing direction. After the required amount of the mixture to be pressed has been poured into the lower part of the pressing tool, the molding compound divider is removed from the lower part of the pressing tool before the upper part of the pressing tool moves into the lower part of the pressing tool and presses the molded part in the desired manner without fluctuations in density
Die neue Vorrichtung kann beim Kaltpressen und/oder Heißpressen verwendet werden.The new device can be used in cold pressing and / or hot pressing.
Weitere vorteilhafte Einzelheiten der Erfindung sind in den Ansprüchen 2 bis 6 enthalten. Sie ist nachstehend anhand der Figuren 1 bis 7 näher erläutert. Es zeigen:
- Fig. 1 in Vorderansicht ein mit der Vorrichtung herstellbares Formteil,
- Fig. 2 in Vorderansicht eine Mehrfachanordnung des Formteils gemäß Fig. 1,
- Fig. 3 im Querschnitt eine Presse zur Herstellung des Formteils gemäß Fig. 2 mit dem erfindungsgemäßen Preßmasseteiler während des Füllvorganges,
- Fig. 4 den Querschnitt der Presse gemäß Fig. 3 am Ende des Preßvorganges,
- Fig. 5 die Draufsicht auf die Unterseite eines pyramidenförmigen Preßmasseteilers,
- Fig. 6 die Draufsicht auf die Unterseite eines Preßmasseteilers in Form einer kreuzförmigen Messeranordnung
- 1 is a front view of a molded part producible with the device,
- 2 is a front view of a multiple arrangement of the molded part according to FIG. 1,
- 3 shows in cross section a press for producing the molded part according to FIG. 2 with the molding compound divider according to the invention during the filling process,
- 4 shows the cross section of the press according to FIG. 3 at the end of the pressing process,
- 5 shows the top view of the underside of a pyramid-shaped molding compound divider,
- Fig. 6 is a plan view of the underside of a molding compound divider in the form of a cross-shaped knife arrangement
und Fig. 7 die Draufsicht auf die Unterseite eines kegelförmigen Preßmasseteilers.and FIG. 7 shows the top view of the underside of a conical molding compound divider.
Fig 1 zeigt als Ausführungsbeispiel ein mögliches, mit der erfindungsgemäßen Vorrichtung herzustellendes Formteil 1. Bei diesem Formteil 1 handelt es sich um eine Winkelleiste, wie sie beispielsweise bei der Verpackung von quaderförmigen Geräten wie Elektroherden, Waschmaschinen oder dgl., zum Schutz der Kanten benötigt werden. Fig. 1 zeigt nur den Querschnitt der Winkelleiste deren Langserstreckung bei unverändertem Querschnitt in die Zeichenebene hinein verläuft.1 shows an exemplary embodiment of a possible molded part 1 to be produced with the device according to the invention. This molded part 1 is an angular strip, as is required, for example, for the protection of the edges when packaging cuboid devices such as electric cookers, washing machines or the like . Fig. 1 shows only the cross section of the angle bar whose longitudinal extension extends into the plane of the drawing with the cross section unchanged.
Solche Winkelleisten 1 werden jedoch in der Regel nicht als einzelne Formteile hergestellt sondern das gepreßte Formteil besteht aus einer Mehrfachanordnung wie sie aus Fig. 2 erkennbar ist und aus welcher durch Abtrennen an den Linien 2 die einzelnen Winkelleisten 1 gewonnen werden.However, such angle strips 1 are generally not produced as individual molded parts, but the pressed molded part consists of a multiple arrangement as can be seen in FIG. 2 and from which the individual angle strips 1 are obtained by separating the
Fig. 3 zeigt eine Presse mit den erfindungsgemäßen Preßmasseteilern, welche zur Hersteltung eines Formteils, wie es in Fig. 2 gezeigt ist, vorgesehen sind. Die Presse besitzt ein Preßwerkzeugunterteil 3, das entsprechend der Form des zu pressenden Formteiles gestaltet ist. Fig. 3 verdeutlicht, daß die Form des Preßwerkzeugunterteils 3 sehr steile Flächen aufweist welche unmittelbar oder unter Zwischenschaltung einer ebenen Fläche ineinander übergehen können. Die Presse in Fig. 3 ist während des Füllvorganges gezeigt d.h. das Preßwerkzeugoberteil 4 das gleichfalls entsprechend des zu pressenden Formteils gestaltet ist, befindet sich in seiner oberen Endlage.FIG. 3 shows a press with the molding compound dividers according to the invention, which are provided for producing a molded part, as shown in FIG. 2. The press has a press tool lower part 3, which is designed according to the shape of the molded part to be pressed. Fig. 3 illustrates that the shape of the pressing tool lower part 3 has very steep surfaces which can merge directly or with the interposition of a flat surface. The press in Fig. 3 is shown during the filling process i.e. the pressing tool upper part 4, which is also designed according to the molded part to be pressed, is in its upper end position.
Während des Fullvorganges befinden sich die Preßmasseteiler 6 zwischen dem Preßwerkzeugoberteil 4 und dem Preßwerkzeugunterteil 3. Bei dem aus Fig. 3 ersichtlichen Ausführungsbeispiel weisen die Preßmasseteiler die Gestalt von messerartigen Stegen auf welche parallel zueinander an einem Rahmen (durch die Linie 7 angedeutet) befestigt sind. Die messerartigen Stege können erforderlichenfalls sogar bis auf den Boden der Vertiefungen im Preßwerkzeugunterteil 3 ragen. Wenn die Preßmasseteiler 6 ihre Lage in der Presse eingenommen haben dann wird das Gemisch beispielsweise bis zur Linie 8 in das Preßwerkzeugunterteil eingefüllt, wobei während des Füllens oder nach dem Füllen die Preßmasseteiler auch eine Vibration ausführen können.During the filling process, the
Das Gemisch zur Herstellung des Formteils besteht aus Fasern wie lignozellulosehaltigen Fasern zerkleinerten und getrockneten Holzspänen, Bagassefasern u.ä. und einem wärmehartenden Kunstharz, wie einem Melamin-Harnstofformaldehyd- oder Phenolformaldehydharz. Anstelle der vorstehend genannten Fasern können aber auch Fasern anderer Werkstoffe, wie Glasfasern und andere allein oder mehrere derselben miteinander gemischt, verwendet werden, denen entsprechende, vorzugsweise organische, Bindemittel zugesetzt sind.The mixture for producing the molded part consists of fibers such as lignocellulose-containing fibers, crushed and dried wood chips, bagasse fibers and the like. and a thermosetting resin such as a melamine-urea formaldehyde or phenol formaldehyde resin. Instead of the fibers mentioned above, it is also possible to use fibers of other materials, such as glass fibers and others alone or a plurality of these mixed with one another, to which appropriate, preferably organic, binders have been added.
Nach dem Einfüllen des Gemisches in das Preßwerkzeugunterteil und ggf. der Vibration der Preßmasseteiler werden die Preßmasseteiler aus dem Raum zwischen Preßwerkzeugoberteil und Preßwerkzeugunterteil entfernt. Danach wird das Preßwerkzeugoberteil auf das Preßwerkzeugunterteil abgesenkt und dabei das Formteil - wenn es sich um ein einstufiges Preßverfahren handelt - fertig gepreßt.After the mixture has been introduced into the lower part of the pressing tool and, if appropriate, the vibration of the molding compound, the molding compound is removed from the space between the upper pressing section and the lower pressing section. Then the upper part of the pressing tool is lowered onto the lower part of the pressing tool and the molded part - if it is a one-step pressing process - is finished pressed.
Die Presse während des Pressens des Formteils ist aus Fig 4 ersichtlich. Danach wird das Preßwerkzeugoberteil 4 wieder nach oben verfahren und das Formteil aus der Presse entnommen.The press during the pressing of the molded part can be seen in FIG. 4. Then the pressing tool upper part 4 is moved up again and the molded part is removed from the press.
Die Presse in den Figuren 3 und 4 ist derart ausgebildet daß das Preßwerkzeugunterteil 3 feststehend und das Preßwerkzeugoberteil 4 vertikal von oben nach unten beweglich angeordnet ist. Es ist aber im Prinzip gleichgültig welches der Preßwerkzeuge von oben her gegen das entsprechende Gegenwerkzeug auf die Preßmasse einwirkt. Es ist ebenso möglich daß das untere Werkzeug nach oben eingefahren wird oder daß beide Werkzeuge gegeneinander bewegt werden.The press in FIGS. 3 and 4 is designed such that the pressing tool lower part 3 is stationary and the pressing tool upper part 4 is arranged to be movable vertically from top to bottom. In principle, however, it does not matter which of the pressing tools acts against the corresponding counter-tool on the molding compound from above. It is also possible that the lower tool is retracted upwards or that both tools are moved against each other.
Ebenso ist es möglich daß mit der Presse anders gestaltete Formteile hergestellt werden. So ist es denkbar, daß das Formteil aus der Aneinanderreihung einer Mehrzahl von topfartigen Vertiefungen mit steilen Wanden besteht, welche von zwischen ihnen angeordneten, mehr oder weniger ebenen Flächen auf Abstand gehalten werden. Solche Formteile besitzen beispielsweise die Gestalt von Eiersteigen.It is also possible that differently shaped parts are produced with the press. It is conceivable that the molded part consists of a series of pot-like depressions with steep walls, which are kept at a distance from more or less flat surfaces arranged between them. Such molded parts have, for example, the shape of egg crates.
Die Vorrichtung für die Herstellung solcher Formteile ist im Prinzip genau so aufgebaut wie der aus Fig 3 ersichtliche Vorrichtung. Lediglich die in die Vertiefung des Preßwerkzeuges hineinragenden Preßmasseteiler müssen eine entsprechende Gestalt aufweisen, beispielsweise eine pyramidenförmige Gestalt (Fig 5), die Gestalt einer kreuzformigen Messeranordnung (Fig 6) oder die Gestalt eines Kegels (Fig 7). Die Figuren 5 bis 7 zeigen die Draufsicht von unten her auf einen solchen Preßmasseteiler. Es sind aber auch beliebige andere Formen des Preßmasseteilers denkbar, jedoch weisen alle Formen eine mehr oder minder große Ähnlichkeit mit der Form des zu pressenden Formteils auf.In principle, the device for producing such molded parts is constructed in exactly the same way as the device shown in FIG. 3. Only the molding compound dividers projecting into the depression of the pressing tool must have a corresponding shape, for example a pyramid-shaped shape (FIG. 5), the shape of a cross-shaped knife arrangement (FIG. 6) or the shape of a cone (FIG. 7). Figures 5 to 7 show the top view from below of such a molding compound divider. However, any other shapes of the molding compound divider are also conceivable, but all the shapes are more or less similar to the shape of the molding to be pressed.
Claims (6)
characterized in that said pressed-compound dividers (6) which, in their shapes, are adapted to the shapes of said moulding cavities, are mounted to a frame (7) and, together there with and prior to the filling-in of said mixture, are in such a way insertable between said upper pressing tool part (4) and said lower pressing tool part (3), and capable of being lowered against said lower pressing tool part (3) in such a way that said pressed-compound dividers project into said moulding cavities.
Priority Applications (10)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP83101104A EP0115552B1 (en) | 1983-02-05 | 1983-02-05 | Apparatus for manufacturing moulded articles |
| DE8383101104T DE3374283D1 (en) | 1983-02-05 | 1983-02-05 | Apparatus for manufacturing moulded articles |
| AT83101104T ATE30532T1 (en) | 1983-02-05 | 1983-02-05 | DEVICE FOR THE PRODUCTION OF MOLDED PARTS. |
| US06/573,561 US4544344A (en) | 1983-02-05 | 1984-01-26 | Arrangement for producing shaped parts |
| JP59016198A JPS59165624A (en) | 1983-02-05 | 1984-02-02 | Device for manufacturing molding member |
| CA000446735A CA1221215A (en) | 1983-02-05 | 1984-02-03 | Arrangement for and method of producing shaped parts |
| ES529464A ES529464A0 (en) | 1983-02-05 | 1984-02-04 | DEVICE FOR THE MANUFACTURE OF MOLDED PARTS |
| AU26019/84A AU569499B2 (en) | 1983-02-05 | 1984-03-22 | Compression moulding |
| IN716/CAL/84A IN162424B (en) | 1983-02-05 | 1984-10-11 | |
| US06/716,233 US4629594A (en) | 1983-02-05 | 1985-03-26 | Method of producing shaped parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP83101104A EP0115552B1 (en) | 1983-02-05 | 1983-02-05 | Apparatus for manufacturing moulded articles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0115552A1 EP0115552A1 (en) | 1984-08-15 |
| EP0115552B1 true EP0115552B1 (en) | 1987-11-04 |
Family
ID=8190280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP83101104A Expired EP0115552B1 (en) | 1983-02-05 | 1983-02-05 | Apparatus for manufacturing moulded articles |
Country Status (9)
| Country | Link |
|---|---|
| US (2) | US4544344A (en) |
| EP (1) | EP0115552B1 (en) |
| JP (1) | JPS59165624A (en) |
| AT (1) | ATE30532T1 (en) |
| AU (1) | AU569499B2 (en) |
| CA (1) | CA1221215A (en) |
| DE (1) | DE3374283D1 (en) |
| ES (1) | ES529464A0 (en) |
| IN (1) | IN162424B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4751034A (en) * | 1986-03-14 | 1988-06-14 | Delong Edward A | Method of molding using dissociated lignocellulosic material and the product so produced |
| SE461775B (en) * | 1986-04-24 | 1990-03-26 | Swedoor Ab | PROCEDURE FOR MANUFACTURE OF DEEP SHAPED DISC |
| ATE152031T1 (en) * | 1993-08-26 | 1997-05-15 | Werzalit Ag & Co | DEVICE FOR USE WHEN FILLING A MIXTURE INTO A PRESSING TOOL |
| 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 |
| WO2009121016A2 (en) | 2008-03-28 | 2009-10-01 | Noble Environmental Technologies Corporation | Engineered molded fiberboard panels, methods of making the panels, and products fabricated from the panels |
| US7967595B1 (en) | 2009-04-02 | 2011-06-28 | John Paul Schofield | Machine and method for reshaping multiple plastic bottles into rock shapes |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1092183B (en) * | 1955-10-05 | 1960-11-03 | G Gassareck Fa | Method and device for pressing pyramidal or truncated cone-shaped hollow bodies closed on one side from a dry, powdery or small-grained molding compound, e.g. If necessary, short wood chips or the like mixed with a binder. |
| DE1254353B (en) * | 1959-10-16 | 1967-11-16 | Interbygg Shwan & Co | Manufacture of building panels by curing polyester molding compounds |
| US3340574A (en) * | 1965-07-22 | 1967-09-12 | Kirkhof Mfg Corp | Universal forming press |
| US3518334A (en) * | 1968-10-01 | 1970-06-30 | Kirkhof Mfg Corp | Method of forming three dimensional plastic articles |
| BE790805A (en) * | 1971-12-10 | 1973-02-15 | Eternit Nv | DEVICE FOR MANUFACTURING SHAPE BODIES FROM FIBER MATERIAL |
| US4061813A (en) * | 1974-06-11 | 1977-12-06 | The United States Of America As Represented By The Secretary Of Agriculture | Combination sheathing support - member building product |
| SU589065A1 (en) * | 1974-12-23 | 1978-01-25 | Ленинградский зональный научно-исследовательский и проектный институт типового и экспериментального проектирования жилых и общественных зданий | Moulding device for compacting mixtures and mortars |
| DE2534774A1 (en) * | 1975-08-04 | 1977-02-17 | Inselkammer Hans | Press mould for prods. of wood chips and fibres - esp. mouldings with very uneven contours and uniform thickness |
| DD130121A5 (en) * | 1976-04-28 | 1978-03-08 | Werz Furnier Sperrholz | METHOD AND DEVICE FOR PRODUCING A MATTE A |
| US4158537A (en) * | 1977-12-12 | 1979-06-19 | United Technologies Corporation | Selective loading of plastic molding compression molds |
| JPS5567438A (en) * | 1978-11-15 | 1980-05-21 | Matsushita Electric Works Ltd | Preparation of flushplate decorated with pattern |
| US4221751A (en) * | 1979-03-07 | 1980-09-09 | Board Of Control Of Michigan Technological University | Articles molded from papermill sludge |
| DE3045702A1 (en) * | 1980-12-04 | 1982-07-08 | Valentin 6503 Mainz-Kastel Schollmayer | Moulding hollow wood chipboard receptacles - in mould with central spring-loaded retractable plunger in mould cavity base to provide uniform chip distribution |
-
1983
- 1983-02-05 DE DE8383101104T patent/DE3374283D1/en not_active Expired
- 1983-02-05 AT AT83101104T patent/ATE30532T1/en not_active IP Right Cessation
- 1983-02-05 EP EP83101104A patent/EP0115552B1/en not_active Expired
-
1984
- 1984-01-26 US US06/573,561 patent/US4544344A/en not_active Expired - Lifetime
- 1984-02-02 JP JP59016198A patent/JPS59165624A/en active Granted
- 1984-02-03 CA CA000446735A patent/CA1221215A/en not_active Expired
- 1984-02-04 ES ES529464A patent/ES529464A0/en active Granted
- 1984-03-22 AU AU26019/84A patent/AU569499B2/en not_active Ceased
- 1984-10-11 IN IN716/CAL/84A patent/IN162424B/en unknown
-
1985
- 1985-03-26 US US06/716,233 patent/US4629594A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CA1221215A (en) | 1987-05-05 |
| US4629594A (en) | 1986-12-16 |
| EP0115552A1 (en) | 1984-08-15 |
| ATE30532T1 (en) | 1987-11-15 |
| ES8504551A1 (en) | 1985-05-01 |
| JPS59165624A (en) | 1984-09-18 |
| AU2601984A (en) | 1985-09-26 |
| AU569499B2 (en) | 1988-02-04 |
| DE3374283D1 (en) | 1987-12-10 |
| JPH0434485B2 (en) | 1992-06-08 |
| US4544344A (en) | 1985-10-01 |
| IN162424B (en) | 1988-05-28 |
| ES529464A0 (en) | 1985-05-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE3712972A1 (en) | HOT MOLDED OBJECT AND METHOD FOR HOT MOLDING | |
| EP0115552B1 (en) | Apparatus for manufacturing moulded articles | |
| CH346362A (en) | Device for pressing hollow bodies | |
| DE69119932T2 (en) | Slider for filling ceramic molds in two stages, in particular for producing pressure-glazed ceramic plates | |
| EP0406783B1 (en) | Process for making hollow articles from lignocellulosic fibres | |
| CH627126A5 (en) | ||
| DE2832295C3 (en) | Form table for precast concrete slabs | |
| DE1471256B2 (en) | Process for the production of sound-absorbing self-supporting ceiling and wall panels from a mat or a fleece made of mineral wool | |
| DE1035352B (en) | Device for the production of molded bodies from wood chips, wood fiber materials or the like by pressing | |
| DE2436663C3 (en) | Method and device for the production of objects made of plastic with a high filler content | |
| DE19622001A1 (en) | System for manufacturing concrete blocks | |
| EP0177628A1 (en) | Method and apparatus for the production of pressed profiled articles | |
| EP0130359B1 (en) | Method of manufacturing cross-bars, sections, beams or the like of compressed small size vegetal parts | |
| DE2035053C3 (en) | Press for making hair parts | |
| DE8714786U1 (en) | Stamps for stone forming machines | |
| DE2121062A1 (en) | Thin panels of very viscous plastic masses ie quartz sand with - synthetic resin bonding agent | |
| DE4444906C2 (en) | Multi-layer garden table top | |
| DE2948082A1 (en) | Extruded chipboard beam - pressed without slider is turned over for optimum strength properties | |
| DE2709467C3 (en) | Method and device for producing a mat from non-flowable molding compound for molded bodies | |
| EP0197255B1 (en) | Method for the production of a pressed profiled body | |
| EP0084074B1 (en) | Method of manufacturing pressed shaped articles of a non-expandable composition | |
| DE2151704A1 (en) | COMPONENT MADE FROM PRESSED LIGHTWEIGHT MATERIAL | |
| EP0257106A1 (en) | Method and apparatus for making articles from bonded fibres | |
| DE1031955B (en) | Device for pressing hollow moldings | |
| DE886066C (en) | Process for the production of dam plates, door leaves or the like. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |
|
| AK | Designated contracting states |
Designated state(s): AT BE CH DE FR GB IT LI NL SE |
|
| 17P | Request for examination filed |
Effective date: 19840911 |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: WERZALIT - WERKE J.F. WERZ KG |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH DE FR GB IT LI NL SE |
|
| REF | Corresponds to: |
Ref document number: 30532 Country of ref document: AT Date of ref document: 19871115 Kind code of ref document: T |
|
| GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) | ||
| REF | Corresponds to: |
Ref document number: 3374283 Country of ref document: DE Date of ref document: 19871210 |
|
| ET | Fr: translation filed | ||
| ITF | It: translation for a ep patent filed | ||
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed | ||
| ITTA | It: last paid annual fee | ||
| EAL | Se: european patent in force in sweden |
Ref document number: 83101104.4 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20000127 Year of fee payment: 18 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20000131 Year of fee payment: 18 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 20000201 Year of fee payment: 18 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 20000210 Year of fee payment: 18 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 20000215 Year of fee payment: 18 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20000228 Year of fee payment: 18 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: BE Payment date: 20000413 Year of fee payment: 18 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20010205 Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20010205 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20010206 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20010228 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20010228 Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20010228 |
|
| BERE | Be: lapsed |
Owner name: WERZALIT-WERKE J.F. WERZ K.G. Effective date: 20010228 |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20010205 |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
| EUG | Se: european patent has lapsed |
Ref document number: 83101104.4 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20011031 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20011201 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 20020228 Year of fee payment: 20 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20030205 |
|
| NLV7 | Nl: ceased due to reaching the maximum lifetime of a patent |
Effective date: 20030205 |