EP0466653B1 - Procedure for manufacture of a coffin from formed pulp material - Google Patents

Procedure for manufacture of a coffin from formed pulp material Download PDF

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Publication number
EP0466653B1
EP0466653B1 EP91810532A EP91810532A EP0466653B1 EP 0466653 B1 EP0466653 B1 EP 0466653B1 EP 91810532 A EP91810532 A EP 91810532A EP 91810532 A EP91810532 A EP 91810532A EP 0466653 B1 EP0466653 B1 EP 0466653B1
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EP
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Prior art keywords
coffin
moulding
pulp
die
core
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EP91810532A
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German (de)
French (fr)
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EP0466653A1 (en
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Alois Koch
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Individual
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G17/00—Coffins; Funeral wrappings; Funeral urns
    • A61G17/007—Coffins; Funeral wrappings; Funeral urns characterised by the construction material used, e.g. biodegradable material; Use of several materials
    • A61G17/0073—Cardboard
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21J—FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE
    • D21J3/00—Manufacture of articles by pressing wet fibre pulp, or papier-mâché, between moulds
    • D21J3/10—Manufacture of articles by pressing wet fibre pulp, or papier-mâché, between moulds of hollow bodies
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21J—FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE
    • D21J7/00—Manufacture of hollow articles from fibre suspensions or papier-mâché by deposition of fibres in or on a wire-net mould

Definitions

  • the invention relates to a method for producing a coffin from molded pulp material according to the preamble of claim 1
  • a method for producing a coffin from molded pulp material is known from DE-A 26 44 487.
  • the open half of the coffin body is formed by pressing a mold made of a permeable material, for example a sieve-like material, into the sludge of a paper pulp in the upside-down state of the coffin body, in such a way that the coffin part formed in the mold with its open part End is directed downwards.
  • a suction device is placed on the interior of the mold to pull the paper pulp against the mold surface.
  • the mold with the applied paper pulp is lifted out of the sludge of the paper pulp and a further suction device is applied to the interior of the mold in order to suck the water out of the paper pulp located on the mold and to compress it. Compressed air is then applied to the interior of the mold in order to detach the absorbent body from the mold and subsequently dry the coffin under the action of heat.
  • the strength of a coffin manufactured in this way is insufficient; in particular, the layer thickness of the paper pulp that is sucked in can fluctuate, so that weaknesses in strength cannot be avoided and the surface of the coffin can also have unevenness.
  • Another disadvantage is that unhomogeneous spots can arise in the coffin body during drainage.
  • the advantage is in particular that the pulp material emulsion is pumped into the molding press between the punch and the die under adjustable pressure and, at the same time, the pulp material suspension is dewatered via the perforated die designed as a core under reduced pressure.
  • the gap between the stamp and the die, which forms the filling mold, can be adjusted over a wide range and a controlled pressing process ensures the required strength of the coffin compact, the compact being homogeneous and the surfaces of which have a smooth press skin.
  • Another advantage is that all of the provided and required reinforcements, in particular in the coffin corners and in the areas of the carrying handles, are formed simultaneously during the pressing process in accordance with the stamp and die outer surfaces.
  • the activation of the waterproof binder admixed in the pulp material takes place during the heat treatment in the flow channel or already during the pressing process, if known heating devices are used in the punch and in the die. This increases the strength of the coffin significantly, which is particularly important for coffins of larger dimensions.
  • a stamp 16 and a die 20 of a partially illustrated molding press 10 are shown, an upper pressure press preferably being used in which the upper press table 14 is vertically movable and the die 20 is designed to be stationary.
  • the stamp 16 which can be moved via a press piston 12, forms the outer compact surface with its outer stamp surface.
  • the die 20 is as an opening 22, for example formed of holes or similar slits and the like., permeable core, and represents an inverted coffin half, the downwardly open coffin half is closed with a sealing plate 24, and that between the perforated die 20 and the sealing plate 24, a core cavity 26 arises.
  • the outer die surface 20 'forms the inner compact surface.
  • a vacuum for dewatering the pulp material suspension or, respectively, via the openings 22 in a filling mold 30 provided between the punch 16 and the die 20 can an overpressure for demolding the compact 40 can be generated.
  • the gap a between the punch 16 and the die 20, which forms the filling mold 30, can be adjusted over a wide range depending on the coffin size for the required strengths.
  • the coffin half 40 shown in FIG. 2 is reinforced in the areas of the coffin corners 42 and the carrying handles 44 in the interior of the coffin.
  • the interlocking flanges 46 of the lower and upper part serve to screw the two coffin halves.
  • the open lower and upper parts 40 are each closed off with an outwardly pointing edge 48, each of which fit a groove 50 running over the edge circumference, into which a wooden strip 52 is inserted, which engages in the grooves 50 of the lower and upper parts 40, making an immovable Adjust when joining the lower and upper parts 40 is ensured.
  • the pulp material is processed in a known manner in a material preparation (not shown), cellulose fibers, waste paper and / or wood chips together with water and a water-resistant binder known per se in a pulp mixer to form a pumpable pulp material suspension 54 be dissolved and mixed.
  • the upper press table 24 is brought into the starting position together with the plunger 16 by the pressing piston 12, whereby an adjustable gap a is formed in the opened filling mold 30.
  • the pulp suspension is pumped into the filling mold 30 delimited by the outer punch 16 'and die surfaces 20'.
  • the perforated die 20 designed as a core is covered with a sheet-like textile structure 32, preferably a felt cloth, in order to retain the cellulose fibers.
  • a negative pressure is applied in the core cavity 26 via the suction and compressed air line 36, so that the pulp suspension 54 pumped under pressure into the filling mold 30 of the molding press 10 is simultaneously dewatered by the suction effect via the openings 22 of the die 20 and thus the pulp is pre-compressed.
  • the unmolded compact 40 is removed from the opened mold 10 and fed to a pass-through channel for heat treatment, controlled temperature control not only drying but also activating the binder contained in the compact 40, thereby achieving the final strength of the compact 40
  • the punch 16 and the die 20 of the molding press 10 could also be designed to be heatable in a known manner, so that the activation of the waterproof binder could take place in a controlled manner during the pressing process.
  • the coffin upper and inner surfaces are refined in a known manner, the lower and upper parts are screwed to the flanges 46, wooden strips 52 engaging in the grooves 50 of the lower and upper part edges 48 are inserted over the edge circumference and the Carrying handles attached.
  • the right side of the molding press 10 according to FIG. 1 is shown with the open filling mold 30 (gap a), in which the pulp suspension 54 has already been pumped in.
  • the left side of the molding press 10 shows the closed filling mold 30 '(gap a') with the finished compact 40 provided with the reinforcements.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Paper (AREA)
  • Fertilizers (AREA)

Abstract

The invention provides a coffin made of moulded pulp and comprising a bottom part and a top part. The halves of the coffin can also be identical and are each formed in a single operation as a moulding (40) in a positive mould (30) of a moulding press (10). They are moulded in such a way that reinforcements are provided in the corners (42) of the bottom and top parts (40) and in the region of the handles. The hydraulic moulding press (10), which can operate with a pressure of 2000 t, comprises a moveable ram (16) and a fixed die (20), which is designed as a core made permeable by openings (22). The perforated die (20) forms an inverted coffin half, the downwardly open coffin half being sealed off by a sealing plate (24). A vacuum for dewatering the pulp suspension and a positive pressure for releasing the moulding (40) from the mould can be produced in the cavity (26) of the core and thus via openings (22) in the positive mould (30, 30') via a suction- air or compressed-air line (36). The water-resistant binder contained in the pulp can be activated either during a subsequent heat treatment or during the moulding process itself, the required final strength of the coffin thereby being guaranteed. <IMAGE>

Description

Die Erfindung betrifft ein Verfahren zum Herstellen eines Sarges aus geformtem Pulpestoff nach dem Oberbegriff von Anspruch 1
Ein derartiges Verfahren ist aus der DE-A 26 44 487 bekannt. Die Formung der offenen Sargkörper-Hälfte erfolgt dadurch, dass eine Form aus einem durchlässigen Material, beispielsweise einem siebartigen Stoff, im umgedrehten Zustand des Sargkörpers in einen Schlamm eines Papierbreies eingedrückt wird, und zwar so, dass der in der Form gebildete Sargteil mit dessen offenem Ende nach unten gerichtet ist. An den Innenraum der Form wird eine Saugvorrichtung angelegt, um den Papierbrei gegen die Formoberfläche zu ziehen. Die Form mit dem aufgebrachten Papierbrei wird aus dem Schlamm des Papierbreies herausgehoben und eine weitere Saugvorrichtung wird an den Innenraum der Form angelegt, um das Wasser aus dem an der Form befindlichen Papierbrei abzusaugen und diesen zu verdichten. An den Innenraum der Form wird dann Druckluft angelegt, um den Saugkörper aus der Form zu lösen und nachfolgend unter Wärmeeinwirkung den Sarg zu trocknen.The invention relates to a method for producing a coffin from molded pulp material according to the preamble of claim 1
Such a method is known from DE-A 26 44 487. The open half of the coffin body is formed by pressing a mold made of a permeable material, for example a sieve-like material, into the sludge of a paper pulp in the upside-down state of the coffin body, in such a way that the coffin part formed in the mold with its open part End is directed downwards. A suction device is placed on the interior of the mold to pull the paper pulp against the mold surface. The mold with the applied paper pulp is lifted out of the sludge of the paper pulp and a further suction device is applied to the interior of the mold in order to suck the water out of the paper pulp located on the mold and to compress it. Compressed air is then applied to the interior of the mold in order to detach the absorbent body from the mold and subsequently dry the coffin under the action of heat.

Die Festigkeit eines derart hergestellten Sarges ist ungenügend, insbesondere kann die angesaugte Schichtdicke des Papierbreies schwanken, so dass Festigkeits-Schwachstellen nicht zu vermeiden sind und zusätzlich die Sargoberflächen Unebenheiten aufweisen können. Ein weiterer Nachteil besteht darin, dass während der Entwässerung im Sargkörper unhomogene Stellen entstehen können.The strength of a coffin manufactured in this way is insufficient; in particular, the layer thickness of the paper pulp that is sucked in can fluctuate, so that weaknesses in strength cannot be avoided and the surface of the coffin can also have unevenness. Another disadvantage is that unhomogeneous spots can arise in the coffin body during drainage.

Es ist Aufhabe der Erfindung einen Sarg aus Pulpestoff derart gleichmässig herzustellen, dass in einem Arbeitsvorgang jede gewünschte Wandstärke einschl. enstsprechender Verstärkungen, insbesondere in den Ecken und in den Bereichen der Traggriffe erzielt wird, wobei die gewünschte Festigkeit des Sarges jeweils kontrolliert gewährleistet sein muss.It is the object of the invention to produce a coffin of pulp material in such a uniform manner that any desired wall thickness, including corresponding reinforcements, in particular in the corners and in the areas of the carrying handles, is achieved in one operation, the desired strength of the coffin having to be ensured in a controlled manner.

Die vorgenannte Aufgabe wird durch die Merkmale von Anspruch 1 gelöst.The above object is achieved by the features of claim 1.

Der Vorteil besteht insbesondere darin, dass die Pulpestoff-Emulsion in der Formpresse zwischen dem Stempel und dem Gesenk unter einstellbarem Druck eingepumpt wird und gleichzeitig über das perforierte, als Kern ausgebildete Gesenk bei unterdruck eine Entwässerung der Pulpestoff-Suspension erfolgt.The advantage is in particular that the pulp material emulsion is pumped into the molding press between the punch and the die under adjustable pressure and, at the same time, the pulp material suspension is dewatered via the perforated die designed as a core under reduced pressure.

Der Spalt zwischen dem Stempel und dem Gesenk, der die Füllform bildet, ist in einem weiten Bereich einstellbar und ein kontrollierter Pressvorgang gewährleistet die erforderliche Festigkeit des Sarg-Presslings, wobei der Pressling homogen ausgebildet ist und dessen Oberflächen eine glatte Presshaut aufweisen.The gap between the stamp and the die, which forms the filling mold, can be adjusted over a wide range and a controlled pressing process ensures the required strength of the coffin compact, the compact being homogeneous and the surfaces of which have a smooth press skin.

Ein weiterer Vorteil besteht darin, dass alle vorgesehenen und erforderlichen Verstärkungen, insbesondere in den Sarg-Ecken und in Bereichen der Traggriffe gleichzeitig während des Pressvorganges entsprechend der Stempel- und Gesenk-Aussenoberflächen gebildet werden.Another advantage is that all of the provided and required reinforcements, in particular in the coffin corners and in the areas of the carrying handles, are formed simultaneously during the pressing process in accordance with the stamp and die outer surfaces.

Die Aktivierung des im Pulpestoff zugemischten wasserfesten Bindemittels erfolgt während der Wärmebehandlung im Durchlaufkanal ober bereits während des Pressvorganges, falls an sich bekannte Heizvorrichtungen im Stempel und im Gesenk zur Anwendung kommen. Dadurch wird die Festigkeit des Sarges zusätzlich wesentlich erhöht, was insbesondere für Särge grösserer Abmessungen von Wichtigkeit ist.The activation of the waterproof binder admixed in the pulp material takes place during the heat treatment in the flow channel or already during the pressing process, if known heating devices are used in the punch and in the die. This increases the strength of the coffin significantly, which is particularly important for coffins of larger dimensions.

Die Erfindung wird anhand der vereinfachten Zeichnung näher erläutert.The invention is explained in more detail with reference to the simplified drawing.

Es zeigen schematisch

Fig.1
einen Querschnitt durch einen Stempel und ein Gesenk einer Formpresse, und
Fig.2
eine perspektivische Darstellung einer Sargkörper-Hälfte.
They show schematically
Fig. 1
a cross section through a stamp and a die of a molding press, and
Fig. 2
a perspective view of a coffin body half.

Zur Durchführung des erfindungsgemässen Verfahrens wird ein Stempel 16 und ein Gesenk 20 einer teilweise dargestellten Formpresse 10 gezeigt, wobei vorzugsweise eine Oberdruckpresse zur Anwendung kommt, bei welcher der obere Pressentisch 14 vertikal beweglich und das Gesenk 20 feststehend ausgebildet sind. Der über einen Presskolben 12 bewegbare Stempel 16 bildet mit seiner äusseren Stempelfläche die äussere Pressling-Oberfläche. Das Gesenk 20 ist als ein über Oeffnungen 22, beispielsweise über Löcher bzw. analoge Schlitze u.dgl., durchlässiger Kern ausgebildet, und stellt eine umgekehrte Sarghälfte dar, wobei die nach unten offene Sarghälfte mit einer Abdichtplatte 24 abgeschlossen ist, und dass zwischen dem perforierten Gesenk 20 und der Abdichtplatte 24 ein Kern-Hohlraum 26 entsteht. Die äussere Gesenkfläche 20′ bildet die innere Pressling-Oberfläche. Durch eine in den Hohlraum 26 des Gesenkes 20 führende Saug- bzw. Druckluft-Leitung 36, kann im Hohlraum 26 und somit über die Oeffnungen 22 in einer zwischen Stempel 16 und Gesenk 20 vorgesehenen Füllform 30 ein Unterdruck zur Entwässerung der Pulpestoff-Suspension bzw. ein Ueberdruck zum Entformen des Presslings 40 erzeugt werden. Der Spalt a zwischen dem Stempel 16 und dem Gesenk 20, der die Füllform 30 bildet, ist in weitem Bereich je nach Sarggrösse für erforderliche Festigkeiten einstellbar.In order to carry out the method according to the invention, a stamp 16 and a die 20 of a partially illustrated molding press 10 are shown, an upper pressure press preferably being used in which the upper press table 14 is vertically movable and the die 20 is designed to be stationary. The stamp 16, which can be moved via a press piston 12, forms the outer compact surface with its outer stamp surface. The die 20 is as an opening 22, for example formed of holes or similar slits and the like., permeable core, and represents an inverted coffin half, the downwardly open coffin half is closed with a sealing plate 24, and that between the perforated die 20 and the sealing plate 24, a core cavity 26 arises. The outer die surface 20 'forms the inner compact surface. By means of a suction or compressed air line 36 leading into the cavity 26 of the die 20, a vacuum for dewatering the pulp material suspension or, respectively, via the openings 22 in a filling mold 30 provided between the punch 16 and the die 20 can an overpressure for demolding the compact 40 can be generated. The gap a between the punch 16 and the die 20, which forms the filling mold 30, can be adjusted over a wide range depending on the coffin size for the required strengths.

Für die Zuführung der Pulpestoff-Suspension 54 in die Füllform 30 sind im Stempel 16 mehrere, gemäss Fig.1 zwei Zuführleitungen 34 vorgesehen, die jeweils mit einem Ventil-Schieber 18 versehen sind.For the supply of the pulp suspension 54 into the filling mold 30, several, according to FIG. 1, two supply lines 34 are provided in the punch 16, each of which is provided with a valve slide 18.

Die in Fig.2 dargestellte Sarghälfte 40 ist in den Bereichen der Sarg-Ecken 42 und der Traggriffe 44 im Sarginneren verstärkt. Die ineinander greifenden Flansche 46 des Unter- und Oberteiles dienen zur Verschraubung der beiden Sarghälften. Die offenen Unter- und Oberteile 40 sind jeweils mit einer nach aussen weisenden Kante 48 abgeschossen, die jeweils eine über den Kanten-Umfang verlaufende Nut 50 einpassen, in welche eine in den Nuten 50 der Unter- und Oberteile 40 eingreifende Holzleiste 52 eingesetzt ist, wodurch ein unverschiebbares Anpassen beim Zusammenfügen der Unter- und Oberteile 40 sichergestellt wird.The coffin half 40 shown in FIG. 2 is reinforced in the areas of the coffin corners 42 and the carrying handles 44 in the interior of the coffin. The interlocking flanges 46 of the lower and upper part serve to screw the two coffin halves. The open lower and upper parts 40 are each closed off with an outwardly pointing edge 48, each of which fit a groove 50 running over the edge circumference, into which a wooden strip 52 is inserted, which engages in the grooves 50 of the lower and upper parts 40, making an immovable Adjust when joining the lower and upper parts 40 is ensured.

Gemäss dem erfindungsgemässen Verfahren wird der Pulpestoff in bekannter Weise in einer nicht dargestellten Material-Vorbereitung aufbereitet, wobei Zellulosefasern, Altpapier und/oder Holzspäne zusammen mit Wasser und einem wasserfesten, an sich bekannten Bindemittel in einem Pulpe-Mixer zu einer pumpfähigen Pulpestoff-Suspension 54 aufgelöst und vermischt werden. Durch den Presskolben 12 wird der obere Pressentisch 24 zusammen mit dem Stempel 16 in die Ausgangslage gebracht, wodurch ein einstellbarer Spalt a in der geöffneten Füllform 30 gebildet wird. Ueber Zuführleitungen 34 wird die Pulpestoff-Suspension in die durch die von den äusseren Stempel- 16′ und Gesenk-Oberflächen 20′ begrenzte Füllform 30 eingepumpt. Das perforierte, als Kern ausgebildete Gesenk 20 wird mit einem flächenartigen Textilgebilde 32, vorzugsweise einem Filztuch abgedeckt, um die Zellulosefasern zurückzuhalten. Im Kern-Hohlraum 26 wird über die Saug- und Druckluft-Leitung 36 ein Unterdruck angelegt, so dass die unter Druck in die Füllform 30 der Formpresse 10 eingepumpte Pulpestoff-Suspension 54 gleichzeitig durch die Saugwirkung über die Oeffnungen 22 des Gesenkes 20 entwässert und damit der Pulpestoff vorverdichtet wird.According to the method according to the invention, the pulp material is processed in a known manner in a material preparation (not shown), cellulose fibers, waste paper and / or wood chips together with water and a water-resistant binder known per se in a pulp mixer to form a pumpable pulp material suspension 54 be dissolved and mixed. The upper press table 24 is brought into the starting position together with the plunger 16 by the pressing piston 12, whereby an adjustable gap a is formed in the opened filling mold 30. Via feed lines 34, the pulp suspension is pumped into the filling mold 30 delimited by the outer punch 16 'and die surfaces 20'. The perforated die 20 designed as a core is covered with a sheet-like textile structure 32, preferably a felt cloth, in order to retain the cellulose fibers. A negative pressure is applied in the core cavity 26 via the suction and compressed air line 36, so that the pulp suspension 54 pumped under pressure into the filling mold 30 of the molding press 10 is simultaneously dewatered by the suction effect via the openings 22 of the die 20 and thus the pulp is pre-compressed.

Nachdem die Pulpestoff-Suspension 54 in die Füllform 30 eingepumpt ist und zum grösseren Teil die Suspension 54 durch Saugwirkung über das perforierte Gesenk 20 weitgehend entwässert ist, kann der eigentliche Pressvorgang erfolgen, so dass der Pulpestoff weiter verdichtet und auf eine vorbestimmte Wandstärke a entsprechend dem eingestellten Spalt a′ zusammengepresst wird. Gleichzeitig im gleichen Arbeitsvorgang werden auch die erforderlichen Verstärkungen 42,44 des Sargpresslings 40, insbesondere in den Ecken und in Bereichen der Traggriffe ausgebildet. Nachdem der Stempel 16 in die Ausgangslage zurückgefahren ist, wird im Hohlraum 26 des Gesenkes 20 ein auf den über die Oeffnungen 22 des Gesenkes 20 wirkender Ueberdruck angelegt, wodurch der Pressling 40 aus der Füllform 30′ entformt wirdAfter the pulp suspension 54 is pumped into the filling mold 30 and for the most part the suspension 54 is largely dewatered by suction through the perforated die 20, the actual pressing process can take place, so that the pulp is further compressed and to a predetermined wall thickness a corresponding to that set gap a 'is compressed. At the same time in the same The required reinforcements 42, 44 of the coffin compact 40 are also formed, in particular in the corners and in the areas of the carrying handles. After the plunger 16 has moved back into the starting position, an overpressure acting on the openings 22 of the die 20 is applied in the cavity 26 of the die 20, whereby the compact 40 is removed from the filling mold 30 '

Der entformte Pressling 40 wird aus der geöffneten Form 10 entnommen und einem Durchlaufkanal zur Wärmebehandlung zugeführt, wobei durch gesteuerte Temperaturregelung nicht nur eine Trocknung sondern auch eine Aktivierung des im Pressling 40 enthaltenen Bindemittels erfolgt, wodurch die Endfestigkeit des Presslings 40 erreicht wirdThe unmolded compact 40 is removed from the opened mold 10 and fed to a pass-through channel for heat treatment, controlled temperature control not only drying but also activating the binder contained in the compact 40, thereby achieving the final strength of the compact 40

Der Stempel 16 und das Gesenk 20 der Formpresse 10 könnte auch gemäss Anspruch 4 in bekannter Weise beheizbar ausgebildet sein, so dass die Aktivierung des wasserfesten Bindemittels bereits während des Pressvorganges gesteuert erfolgen könnte.The punch 16 and the die 20 of the molding press 10 could also be designed to be heatable in a known manner, so that the activation of the waterproof binder could take place in a controlled manner during the pressing process.

Nach der Wärmebehandlung und Abkühlung werden in bekannter Weise die Sarg-Ober- und Innenflächen veredelt, die Unter-und Oberteile an den Flanschen 46 verschraubt, in die Nuten 50 der Unter- und Oberteil-Kanten 48 eingreifende Holzleisten 52 über den Kantenumfang eingesetzt und die Traggriffe angebracht.After the heat treatment and cooling, the coffin upper and inner surfaces are refined in a known manner, the lower and upper parts are screwed to the flanges 46, wooden strips 52 engaging in the grooves 50 of the lower and upper part edges 48 are inserted over the edge circumference and the Carrying handles attached.

Zur besseren Anschaulichkeit wird die rechte Seite der Formpresse 10 gemäss Fig.1 mit der offenen Füllform 30 (Spalt a) gezeigt, in welcher die Pulpestoff-Suspension 54 bereits eingepumpt ist. Die linke Seite der Formpresse 10 zeigt die geschlossene Füllform 30′ (Spalt a′) mit dem fertigen mit den Verstärkungen versehenen Pressling 40.For the sake of clarity, the right side of the molding press 10 according to FIG. 1 is shown with the open filling mold 30 (gap a), in which the pulp suspension 54 has already been pumped in. The left side of the molding press 10 shows the closed filling mold 30 '(gap a') with the finished compact 40 provided with the reinforcements.

Claims (2)

  1. Process for the production of a coffin for burial or cremation, made from moulded pulp of cellulose fibres, comprising one moulding (40) for the upper and one for the lower part with reinforcements in the corners (42) and in the area of the carrying handles (44), where
    - cellulose fibres, waste paper and/or wood chips are dissolved with water and a water-resistant binding agent additive in a pulp mixer to form a pumpable pulp suspension (54),
    - the mould for the moulding (40) is designed as a perforated core,
    - in a first step, a negative pressure is applied to the core cavity (26) via a suction or compressed air line (36) and the water extracted from the pulp suspension (54),
    - in a second step, compressed air is applied to the core cavity (26) against the moulding (40) through the compressed air line (36) and the moulding (40) deformed,
    - after opening the moulding press (10), the moulding (40) is removed and passed to a processing channel in which it undergoes a temperature-controlled heat treatment, where at the same time the binding agent contained in the pulp is activated,
    - after heat treatment, the outer and inner surfaces of the coffin are finished in a known manner, the lower and upper parts screwed together, a wooden strip (52) engaging in grooves on the edges (48) of the lower and upper parts inserted and carrying handles fitted,
    characterized in that
    - the pumpable pulp suspension (54) is pumped under pressure via several supply lines (34) into an open positive mould (30) previously presented between the upper die (16) and the perforated core designed as a lower die (20) with openings (22), where the lower die (20) is covered by a textile fabric (32) and the core cavity (26) is sealed on the outside below and over the entire surface of the lower die (20) by a sealing plate (24),
    - the pulp is compressed further by the upper die (16) of the moulding press (10) and compressed to a predetermined wall thickness (a'), as soon as the pulp has been drained to the required density and thus precompressed, where at the same time the necessary reinforcements (42 44) are formed in the corners and in the areas of the carrying handles.
  2. Process according to Claim 1, characterized in that to activate the binding agent contained in the pump, the upper die (16) and lower die (20) are controllably heated in the moulding press (10).
EP91810532A 1990-07-11 1991-07-05 Procedure for manufacture of a coffin from formed pulp material Expired - Lifetime EP0466653B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH231090 1990-07-11
CH2310/90 1990-07-11

Publications (2)

Publication Number Publication Date
EP0466653A1 EP0466653A1 (en) 1992-01-15
EP0466653B1 true EP0466653B1 (en) 1995-03-01

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EP91810532A Expired - Lifetime EP0466653B1 (en) 1990-07-11 1991-07-05 Procedure for manufacture of a coffin from formed pulp material

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EP (1) EP0466653B1 (en)
AT (1) ATE119020T1 (en)
DE (1) DE59104750D1 (en)

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GB9722547D0 (en) * 1997-10-25 1997-12-24 Pinco 976 Limited Improvements relating to forming machines
US6849141B2 (en) 1998-09-15 2005-02-01 Batesville Services, Inc. Casket lid and method of making same
US6243931B1 (en) 1998-09-15 2001-06-12 Batesville Services, Inc. Casket lid and method and making same
AU2006235827B2 (en) * 1998-09-15 2008-04-10 Batesville Services, Inc. Casket lid and method of making same
US6210531B1 (en) 1998-10-26 2001-04-03 Px Technologies, Ltd. Forming machines
DE10039713A1 (en) * 2000-08-07 2002-02-21 Bernd Kuenne Dimensionally stable object, e.g. a container, is made of fibre materials
JP4601531B2 (en) * 2004-10-12 2010-12-22 花王株式会社 MANUFACTURING METHOD AND DEVICE FOR FIBER MOLDED ARTICLE, FIBER MOLDING INTERMEDIATE AND FIBER MOLDED
US10435848B2 (en) * 2014-12-22 2019-10-08 Celwise Ab Tool or tool part, system including such a tool or tool part, method of producing such a tool or tool part and method of molding a product from a pulp slurry
SE539867C2 (en) 2015-06-23 2017-12-27 Organoclick Ab Large Lightweight Coffin and Method for its Manufacture
SE539866C2 (en) 2015-06-23 2017-12-27 Organoclick Ab Pulp Molding Apparatus and Molds for Use Therein
SE539902C2 (en) 2015-06-23 2018-01-09 Organoclick Ab Large Lightweight Three Dimensional Object and Method for Producing the Object
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GR1009985B (en) * 2016-08-24 2021-04-22 Φωτιος Κωνσταντινου Κουτροπουλος Method for the construction of assemblable coffin surfaces with compressed wood pulp casting
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Also Published As

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DE59104750D1 (en) 1995-04-06
EP0466653A1 (en) 1992-01-15
ATE119020T1 (en) 1995-03-15

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