EP0414172A2 - Drainage element for presses - Google Patents

Drainage element for presses Download PDF

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Publication number
EP0414172A2
EP0414172A2 EP90115864A EP90115864A EP0414172A2 EP 0414172 A2 EP0414172 A2 EP 0414172A2 EP 90115864 A EP90115864 A EP 90115864A EP 90115864 A EP90115864 A EP 90115864A EP 0414172 A2 EP0414172 A2 EP 0414172A2
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EP
European Patent Office
Prior art keywords
sleeve
drainage element
element according
socket
ring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP90115864A
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German (de)
French (fr)
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EP0414172A3 (en
EP0414172B1 (en
Inventor
Alexandr Chara
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Bucher Guyer AG
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Bucher Guyer AG
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Filing date
Publication date
Application filed by Bucher Guyer AG filed Critical Bucher Guyer AG
Priority to AT90115864T priority Critical patent/ATE94807T1/en
Publication of EP0414172A2 publication Critical patent/EP0414172A2/en
Publication of EP0414172A3 publication Critical patent/EP0414172A3/en
Application granted granted Critical
Publication of EP0414172B1 publication Critical patent/EP0414172B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
    • B30B9/26—Permeable casings or strainers
    • B30B9/262—Permeable casings or strainers means disposed in the casing facilitating the squeezing-out of liquid

Definitions

  • the invention relates to a drainage element for presses for separating liquids from solid substances, in particular for fruit, grape or fruit presses, consisting of a core which is fastened in a socket connected to the container shell and is in the form of a rod and is surrounded by a liquid-permeable filter sleeve.
  • a larger number of such drainage elements is arranged, for example, in the pressing chamber of a fruit press having a pneumatically actuated membrane on the container wall above or below the juice collecting channels.
  • the flexible drainage elements protruding into the press room are deformed.
  • the squeezed juice penetrates the filter cover of the drainage element and is guided out of the press chamber along the rod-shaped core and directed into juice collection channels.
  • the respective end of the drainage element is detachably fastened in a socket connected to the container wall, the core provided with longitudinal grooves for transporting the liquid protruding into a juice collecting channel.
  • a sleeve which closely surrounds it and which has a flanged edge at the end facing away from the pressing chamber and between which and the socket the stocking-like filter cover which is flushed around the latter is clamped, the latter securing the core in the axial direction by a latter penetrating pin and against the flanged edge of the sleeve and between the end of the Core and the bottom of the juice collection channel an insert is provided.
  • a disadvantage of this known embodiment is that the filter sleeve in the area of the transition point, where the drainage element protrudes from the socket into the pressing space, is pressed by the pressing pressure into the longitudinal drainage grooves of the core and thus impair the drainage. At this point, the frequent movements of the core result in high wear and tear.
  • the invention has for its object to avoid the disadvantages mentioned and to provide a fastening of the drainage element, the manufacture of which is simple and allows rapid assembly and functionality.
  • the retaining ring is arranged in an annular groove provided on the sleeve or the socket. This enables a compact design to be achieved.
  • the retaining ring is designed as an O-ring.
  • the sleeve is made of an elastic material.
  • the annular groove provided in the sleeve preferably has an insertion angle ( ⁇ ) which is approximately at right angles to the pulling direction of the filter sleeve.
  • the insertion angle ( ⁇ ) is greater than 90 °.
  • the sleeve has an outer cone tapering in the direction of the press chamber, which cooperates with a corresponding inner cone of the socket, the filter sleeve being arranged between the socket and the socket.
  • the sleeve is axially secured in the direction of the liquid collecting space by means of a releasable pin which is arranged at the end of the core and passes through a hole in the core and the socket.
  • An end plate is expediently arranged between the sleeve and the pin.
  • the retaining ring or the O-ring takes over the function of sealing the solids from the pressing chamber.
  • the advantages achieved with the invention also consist in the fact that, due to the wedge effect of the O-ring, the holding force increases with increasing tensile force on the filter sleeve and thus a secure fastening is ensured even with high tensile forces.
  • the construction of the attachment allows a thin-walled design of the socket, in which the drainage element is used for anchoring. This results in low material costs and an inexpensive manufacture.
  • the assembly and disassembly of the filter cover is simplified and facilitated.
  • a plurality of drainage elements 2 are arranged in a press chamber 1 of a fruit press (not shown in more detail).
  • Each drainage element 2 consists of a rod-shaped, flexible core 3, which is surrounded by a stocking-like filter cover 4.
  • the ends of the drainage element 2 are each inserted in a socket 6, which is arranged axially immovably in a passage opening 7 of the container shell 5.
  • the socket 6 protrudes with its longer part into a liquid collecting space or juice collecting channel 8, which is delimited by a wall 9 or U-shaped.
  • a pin 10 is provided, each of which penetrates a hole in the socket 6 and the core 3.
  • a pressing member for example a membrane, is moved against the container wall 5, the flexible drainage elements 2 buckling and the squeezed juice passing through the liquid-permeable filter sleeve 4 to the core 3 and being conducted via liquid channels in the core 3 into the liquid collecting space or juice collecting channel 8.
  • an elastic sleeve 11 is pushed onto the end of the core 3 and has an outer cone 12 that tapers in the direction of the press chamber 1.
  • the end of the filter sleeve 4 is pulled over the sleeve 11 and held in an annular groove 14 of the sleeve 11 with a retaining ring designed as an O-ring 13.
  • the drainage element 2 is pushed into the socket 6 from the side of the container wall 5 facing away from the pressing chamber 1 until the outer cone 12 of the sleeve 11 with the coated filter sleeve 4 comes to rest against a corresponding inner cone 15 of the socket 6.
  • an end plate 16 is pushed onto the core 3, to which the pin 10 connects, which axially secures the sleeve 11 on the core 3 and, as already described, fixes the end of the drainage element 2 in the socket 6.
  • the annular groove 14 in the sleeve 11 has an insertion angle ( ⁇ ) of approximately 90 ° (FIG. 2).
  • the O-ring 13 inserted into the annular groove 14 and covering the filter sleeve 4 is held in the annular groove 14 by the inner wall of the socket 6.
  • considerable tensile forces arise at the attachment point of the filter cover 4, which act in the direction of the arrow 17 in FIG. 3.
  • an elastic deformation occurs on the front flank 18 of the annular groove 14 in the direction of pull, as shown in FIG. 3.
  • the O-ring 13 rolls on the inner wall of the socket 6 in the pulling direction 17 of the filter sleeve 4 (arrow 19 in FIGS. 2 and 3) and is deformed so that it acts as a wedge and braces the filter sleeve 4 against the flank 18 of the annular groove 14.
  • the tension increases with increasing tensile force, so that a secure attachment of the filter cover 4 is ensured even with very high forces.
  • the insertion angle ( ⁇ ) of the annular groove 14 is selected to be greater than 90 ° (FIG. 4) in order to increase the wedge effect of the O-ring 13 when tensile forces occur achieve.
  • a wedge opening is formed between the flank 18 of the annular groove 14 and the inner wall of the socket 6, into which the O-ring 13 by rolling (arrow 19) on the inner wall of the socket 6 when the filter sleeve 4 is subjected to tensile forces is drawn in and deformed into a wedge, which braces the filter sleeve 4 against the flank 18 of the annular groove 14.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filtration Of Liquid (AREA)
  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
  • External Artificial Organs (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Feeding Of Workpieces (AREA)
  • Finger-Pressure Massage (AREA)
  • Food-Manufacturing Devices (AREA)
  • Jellies, Jams, And Syrups (AREA)
  • Sink And Installation For Waste Water (AREA)
  • Centrifugal Separators (AREA)

Abstract

To fasten filter covering (4) of a drainage element (2) for a fruit press, rod-shaped, flexible core (3) of drainage element (2) carries an elastic sleeve (11) on its end. Filter covering (4) is pulled over sleeve (11) and is held by an O-ring (13) in a annular slot (14) of sleeve (11). The end of drainage element (2) is detachably fastened in a holder (6) that is placed in container wall (5) of the fruit press to be axially immovable and that overlaps filter covering (4) and O-ring (13). During pulling action on filter covering (4) in the direction of arrow (17), annular slot (14) and O-ring (13) are deformed so that O-ring (13) acts as a wedge and solidly braces filter covering (4) against sleeve (11).

Description

Die Erfindung betrifft ein Drainageelement für Pressen zum Ausscheiden von Flüssigkeiten aus festen Stoffen, insbesondere für Obst-, Trauben- oder Früchtepressen, be­stehend aus einem in einer mit dem Behältermantel verbun­denen Fassung befestigten, stabförmig ausgebildeten und von einer flüssigkeitsdurchlässigen Filterhülle umgebe­nen Kern.The invention relates to a drainage element for presses for separating liquids from solid substances, in particular for fruit, grape or fruit presses, consisting of a core which is fastened in a socket connected to the container shell and is in the form of a rod and is surrounded by a liquid-permeable filter sleeve.

Eine grössere Anzahl derartiger Drainageelemente ist bei­spielsweise im Pressraum einer eine pneumatisch betätig­baren Membran aufweisenden Früchtepresse an der Behälter­wand über bzw. unter den Saftsammelkanälen angeordnet. Beim Pressen verformen sich die in den Pressraum hinein­ragenden flexiblen Drainageelemente. Dabei durchdringt der ausgepresste Saft die Filterhülle des Drainageelemen­tes und wird entlang dem stabförmigen Kern aus dem Press­raum herausgeführt und in Saftsammelkanäle geleitet. Hierzu ist das jeweilige Ende des Drainageelementes in einer mit der Behälterwandung verbundenen Fassung lösbar befestigt, wobei der mit Längsrillen zum Transport der Flüssigkeit versehene Kern in einen Saftsammelkanal ragt.A larger number of such drainage elements is arranged, for example, in the pressing chamber of a fruit press having a pneumatically actuated membrane on the container wall above or below the juice collecting channels. During pressing, the flexible drainage elements protruding into the press room are deformed. The squeezed juice penetrates the filter cover of the drainage element and is guided out of the press chamber along the rod-shaped core and directed into juice collection channels. For this purpose, the respective end of the drainage element is detachably fastened in a socket connected to the container wall, the core provided with longitudinal grooves for transporting the liquid protruding into a juice collecting channel.

Zur Befestigung des Kerns ist eine diesen eng umgebende Büchse vorgesehen, die an dem dem Pressraum abgewandten Ende einen gebördelten Rand aufweist und zwischen wel­cher und der Fassung die um letztere nach aussen umge­spülpte strumpfähnliche Filterhülle eingespannt ist, wobei zur Sicherung des Kerns in axialer Richtung ein letzteren durchdringender und an dem gebördelten Rand der Büchse anliegender Stift und zwischen dem Ende des Kerns und dem Boden des Saftsammelkanals eine Einlage vorgesehen ist.For the attachment of the core there is provided a sleeve which closely surrounds it and which has a flanged edge at the end facing away from the pressing chamber and between which and the socket the stocking-like filter cover which is flushed around the latter is clamped, the latter securing the core in the axial direction by a latter penetrating pin and against the flanged edge of the sleeve and between the end of the Core and the bottom of the juice collection channel an insert is provided.

Nachteilig bei dieser bekannten Ausführung ist, dass die Filterhülle im Bereich der Uebergangsstelle, wo das Drai­nageelement aus der Fassung in den Pressraum ragt, durch den Pressdruck in die längsverlaufenden Abflussnuten des Kerns gepresst werden und so die Drainage beeinträchti­gen.
An dieser Stelle tritt durch die häufigen Bewegungen des Kerns eine hohe Beanspruchung mit entsprechenden Ver­schleiss auf.A disadvantage of this known embodiment is that the filter sleeve in the area of the transition point, where the drainage element protrudes from the socket into the pressing space, is pressed by the pressing pressure into the longitudinal drainage grooves of the core and thus impair the drainage.
At this point, the frequent movements of the core result in high wear and tear.

Der Erfindung liegt die Aufgabe zugrunde, die genannten Nachteile zu vermeiden und eine Befestigung des Draina­geelementes zu schaffen, deren Herstellung einfach ist und eine rasche Montage und Funktionstauglichkeit er­laubt.The invention has for its object to avoid the disadvantages mentioned and to provide a fastening of the drainage element, the manufacture of which is simple and allows rapid assembly and functionality.

Nach einem vorteilhaften Merkmal der Erfindung ist der Haltering in einer an der Muffe oder der Fassung vorge­sehenen Ringnut angeordnet.
Dadurch kann eine kompakte Bauweise erreicht werden.According to an advantageous feature of the invention, the retaining ring is arranged in an annular groove provided on the sleeve or the socket.
This enables a compact design to be achieved.

Nach einem weiteren Merkmal der Erfindung ist der Halte­ring als O-Ring ausgebildet.According to a further feature of the invention, the retaining ring is designed as an O-ring.

Zur Schonung der Filterhülle und des Ker.ns ist die Muffe aus einem elastischen Material gebildet.To protect the filter cover and the core, the sleeve is made of an elastic material.

Vorzugsweise weist die in der Muffe vorgesehene Ringnut einen etwa rechtwinklig zur Zugrichtung der Filterhülle verlaufenden Einstichwinkel (α) auf.The annular groove provided in the sleeve preferably has an insertion angle (α) which is approximately at right angles to the pulling direction of the filter sleeve.

Bei Zugeinwirkung auf die Filterhülle tritt eine elasti­sche Verformung der Ringnut und des O-Ringes auf, wobei der O-Ring als Keil wirkt und die Filterhülle gegen die Flanke der Ringnut presst.When the filter sleeve is subjected to tension, the ring groove and the O-ring are deformed elastically, the O-ring acting as a wedge and pressing the filter sleeve against the flank of the ring groove.

In einer anderen Ausführungsform der Erfindung, bei der die Muffe aus einem weniger oder nicht elastischen Mate­rial besteht, ist der Einstichwinkel (α) grösser als 90°.In another embodiment of the invention, in which the sleeve consists of a less or non-elastic material, the insertion angle (α) is greater than 90 °.

Zur axialen Sicherung der Muffe in Richtung des Pressrau­mes weist die Muffe einen sich in Richtung des Pressrau­mes verjüngenden Aussenkonus auf, der mit einem entspre­chenden Innenkonus der Fassung zusammenwirkt, wobei die Filterhülle zwischen der Muffe und der Fassung angeord­net ist.To axially secure the sleeve in the direction of the press chamber, the sleeve has an outer cone tapering in the direction of the press chamber, which cooperates with a corresponding inner cone of the socket, the filter sleeve being arranged between the socket and the socket.

Die axiale Sicherung der Muffe in Richtung des Flüssig­keitssammelraumes erfolgt durch einen am Ende des Kerns angeordneten, lösbaren Stift, der je eine Bohrung des Kerns und der Fassung durchsetzt.The sleeve is axially secured in the direction of the liquid collecting space by means of a releasable pin which is arranged at the end of the core and passes through a hole in the core and the socket.

Zweckmässigerweise ist zwischen der Muffe und dem Stift eine Endscheibe angeordnet.An end plate is expediently arranged between the sleeve and the pin.

Nach einem weiteren Merkmal der Erfindung übernimmt der Haltering bzw. der O-Ring die Funktion der Abdichtung der Feststoffe aus dem Pressraum.According to a further feature of the invention, the retaining ring or the O-ring takes over the function of sealing the solids from the pressing chamber.

Die mit der Erfindung erzielten Vorteile bestehen auch darin, dass sich aufgrund der Keilwirkung des O-Ringes die Haltekraft mit zunehmender Zugkraft an der Filterhül­le erhöht und somit eine sichere Befestigung auch bei hohen Zugkräften gewährleistet ist. Die Konstruktion der Befestigung gestattet eine dünnwandige Gestaltung der Fassung, in die das Drainageelement zur Verankerung ein gesetzt wird. Dadurch ergeben sich niedrige Materialko­ sten und eine kostengünstige Herstellung. Ausserdem wird die Montage und Demontage der Filterhülle vereinfacht und erleichtert.The advantages achieved with the invention also consist in the fact that, due to the wedge effect of the O-ring, the holding force increases with increasing tensile force on the filter sleeve and thus a secure fastening is ensured even with high tensile forces. The construction of the attachment allows a thin-walled design of the socket, in which the drainage element is used for anchoring. This results in low material costs and an inexpensive manufacture. In addition, the assembly and disassembly of the filter cover is simplified and facilitated.

Die Erfindung ist in der folgenden Beschreibung und der Zeichnung, die zwei Ausführugsbeispiele darstellt, näher erläutert. Es zeigen

  • Fig. 1 einen Längsschnitt durch das Ende eines Drainageelementes und seiner Befestigung,
  • Fig. 2 einen vergrösserten Ausschnitt der Filterhüllen-Befestigung nach Fig. 1,
  • Fig. 3 die Filterhüllen-Befestigung nach Fig. 2 bei Zugeinwirkung auf die Filterhülle und
  • Fig. 4 eine andere Form der Ringnut für die Filterhüllen-Befestigung nach Fig. 2.
The invention is explained in more detail in the following description and the drawing, which represents two exemplary embodiments. Show it
  • 1 shows a longitudinal section through the end of a drainage element and its attachment,
  • 2 shows an enlarged section of the filter sleeve attachment according to FIG. 1,
  • Fig. 3, the filter sleeve attachment according to Fig. 2 when the filter sleeve and
  • 4 shows another form of the annular groove for the filter sleeve attachment according to FIG. 2.

Wie aus Fig. 1 ersichtlich, sind in einem Pressraum 1 einer nicht näher dargestellten Früchtepresse mehrere Drainageelemente 2 angeordnet. Jedes Drainageelement 2 besteht aus einem stabförmigen, flexiblen Kern 3, der von einer strumpfartigen Filterhülle 4 umgeben ist. Die Enden des Drainageelementes 2 sind in je eine Fassung 6 eingesetzt, die in einer Durchtrittsöffnung 7 des Behäl­termantels 5 axial unverschiebbar angeordnet ist. Die Fassung 6 ragt mit ihrem längeren Teil in einen Flüssig­keitssammelraum oder Saftsammelkanal 8, der durch eine Wand 9 begrenzt bzw. U-förmig ausgebildet ist. Zur lös­baren Befestigung des Drainageelementes 2 in der Fassung 6 ist ein Stift 10 vorgesehen, der je eine Bohrung der Fassung 6 und des Kerns 3 durchsetzt. Beim Pressvorgang wird ein Pressorgan, bspw. eine Membran gegen die Behäl­terwand 5 bewegt, wobei die flexiblen Drainageelemente 2 ausknicken und der ausgepresste Saft durch die flüssig­keitsdurchlässige Filterhülle 4 hindurch zum Kern 3 ge­langt und über Flüssigkeitskanäle im Kern 3 in den Flüs­sigkeitssammelraum bzw. Saftsammelkanal 8 geleitet wird.As can be seen from FIG. 1, a plurality of drainage elements 2 are arranged in a press chamber 1 of a fruit press (not shown in more detail). Each drainage element 2 consists of a rod-shaped, flexible core 3, which is surrounded by a stocking-like filter cover 4. The ends of the drainage element 2 are each inserted in a socket 6, which is arranged axially immovably in a passage opening 7 of the container shell 5. The socket 6 protrudes with its longer part into a liquid collecting space or juice collecting channel 8, which is delimited by a wall 9 or U-shaped. For the releasable fastening of the drainage element 2 in the socket 6, a pin 10 is provided, each of which penetrates a hole in the socket 6 and the core 3. During the pressing process a pressing member, for example a membrane, is moved against the container wall 5, the flexible drainage elements 2 buckling and the squeezed juice passing through the liquid-permeable filter sleeve 4 to the core 3 and being conducted via liquid channels in the core 3 into the liquid collecting space or juice collecting channel 8.

Zur Befestigung der Filterhülle 4 ist auf das Ende des Kerns 3 eine elastische Muffe 11 aufgeschoben, die einen sich in Richtung des Pressraumes 1 verjüngenden Aussenko­nus 12 aufweist. Das Ende der Filterhülle 4 wird über die Muffe 11 gezogen und mit einem als O-Ring 13 ausge­bildeten Haltering in einer Ringnut 14 der Muffe 11 fest­gehalten. Danach wird das Drainageelement 2 von der dem Pressraum 1 abgewandten Seite der Behälterwand 5 aus in die Fassung 6 eingeschoben, bis der Aussenkonus 12 der Muffe 11 mit der übergezogenen Filterhülle 4 an einem entsprechenen Innenkonus 15 der Fassung 6 zur Anlage kommt. Anschliessend an die Muffe 11 ist auf den Kern 3 eine Endscheibe 16 aufgeschoben, an die sich der Stift 10 anschliesst, der die Muffe 11 auf dem Kern 3 axial si­chert und, wie bereits beschrieben, das Ende des Draina­gelementes 2 in der Fassung 6 fixiert.To fasten the filter cover 4, an elastic sleeve 11 is pushed onto the end of the core 3 and has an outer cone 12 that tapers in the direction of the press chamber 1. The end of the filter sleeve 4 is pulled over the sleeve 11 and held in an annular groove 14 of the sleeve 11 with a retaining ring designed as an O-ring 13. Then the drainage element 2 is pushed into the socket 6 from the side of the container wall 5 facing away from the pressing chamber 1 until the outer cone 12 of the sleeve 11 with the coated filter sleeve 4 comes to rest against a corresponding inner cone 15 of the socket 6. Following the sleeve 11, an end plate 16 is pushed onto the core 3, to which the pin 10 connects, which axially secures the sleeve 11 on the core 3 and, as already described, fixes the end of the drainage element 2 in the socket 6.

Die Ringnut 14 in der Muffe 11 weist einen Einstichwin­kel (α) von ca. 90° auf (Fig. 2). Der in die Ringnut 14 eingelegte, die Filterhülle 4 überdeckende O-Ring 13 wird durch die Innenwandung der Fassung 6 in der Ringnut 14 gehalten. Durch die beim Pressvorgang stattfindenden elastischen Verformungen des Drainageelementes 2 entste­hen an der Befestigungsstelle der Filterhülle 4 erhebli­che Zugkräfte, die in Richtung des Pfeiles 17 der Fig. 3 wirken. Infolge dieser Zugkräfte tritt eine elastische Verformung an der in Zugrichtung vorderen Flanke 18 der Ringnut 14 auf, wie in Fig. 3 dargestellt. Der O-Ring 13 rollt sich dabei an der Innenwandung der Fassung 6 in Zugrichtung 17 der Filterhülle 4 ab (Pfeil 19 in Fig. 2 und 3) und wird so verformt, dass er als Keil wirkt und die Filterhülle 4 gegen die Flanke 18 der Ringnut 14 ver­spannt. Die Verspannung erhöht sich mit zunehmender Zug­kraft, so dass auch bei sehr hohen Kräften eine sichere Befestigung der Filterhülle 4 gewährleistet ist.The annular groove 14 in the sleeve 11 has an insertion angle (α) of approximately 90 ° (FIG. 2). The O-ring 13 inserted into the annular groove 14 and covering the filter sleeve 4 is held in the annular groove 14 by the inner wall of the socket 6. As a result of the elastic deformations of the drainage element 2 taking place during the pressing process, considerable tensile forces arise at the attachment point of the filter cover 4, which act in the direction of the arrow 17 in FIG. 3. As a result of these tensile forces, an elastic deformation occurs on the front flank 18 of the annular groove 14 in the direction of pull, as shown in FIG. 3. The O-ring 13 rolls on the inner wall of the socket 6 in the pulling direction 17 of the filter sleeve 4 (arrow 19 in FIGS. 2 and 3) and is deformed so that it acts as a wedge and braces the filter sleeve 4 against the flank 18 of the annular groove 14. The tension increases with increasing tensile force, so that a secure attachment of the filter cover 4 is ensured even with very high forces.

Wird für die Muffe 11 ein weniger oder nicht elastisches Material verwendet, so empfiehlt es sich, den Einstich­winkel (α) der Ringnut 14 grösser als 90° (Fig. 4) zu wählen, um den Keileffekt des O-Ringes 13 bei auftreten­den Zugkräften zu erzielen. Wie in Fig. 4 dargestellt, wird zwischen der Flanke 18 der Ringnut 14 und der Innen­wandung der Fassung 6 eine Keilöffnung gebildet, in die der O-Ring 13 durch Abrollen (Pfeil 19) auf der Innenwan­dung der Fassung 6 bei Zugeinwirkungen auf die Filterhül­le 4 hineingezogen und zu einem Keil verformt wird, der die Filterhülle 4 gegen die Flanke 18 der Ringnut 14 ver­spannt.If a less or non-elastic material is used for the sleeve 11, it is advisable to select the insertion angle (α) of the annular groove 14 to be greater than 90 ° (FIG. 4) in order to increase the wedge effect of the O-ring 13 when tensile forces occur achieve. As shown in Fig. 4, a wedge opening is formed between the flank 18 of the annular groove 14 and the inner wall of the socket 6, into which the O-ring 13 by rolling (arrow 19) on the inner wall of the socket 6 when the filter sleeve 4 is subjected to tensile forces is drawn in and deformed into a wedge, which braces the filter sleeve 4 against the flank 18 of the annular groove 14.

Claims (14)

1. Drainageelement für Pressen zum Ausscheiden von Flüs­sigkeiten aus festen Stoffen, insbesondere für Obst-, Trauben- oder Früchtepressen, bestehend aus einem in einer mit dem Behältermantel verbundenen Fassung befestigten, stabförmig ausgebildeten und von einer flüssigkeitsdurchlässigen Filterhülle umge­benen, flexiblen Kern, dadurch gekennzeichnet, dass das dem Behältermantel (5) zugewandte Ende des Kerns (3) eine Muffe (11) aufweist, zwischen die (11) und der diese umgebenden Fassung (6) die Filterhülle (4) mittels Haltering (13) in einer Ringnut (14) veran­kert ist.1. Drainage element for presses for separating liquids from solid substances, in particular for fruit, grape or fruit presses, consisting of a flexible core which is fastened in a socket connected to the container jacket and is in the form of a rod and is surrounded by a liquid-permeable filter shell, characterized in that that the end of the core (3) facing the container jacket (5) has a sleeve (11), between the (11) and the surrounding frame (6) the filter sleeve (4) by means of a retaining ring (13) in an annular groove (14) is anchored. 2. Drainageelement nach Anspruch 1, dadurch gekennzeich­net, dass der Haltering (13) in einer an der Muffe (11) oder der Fassung (6) vorgesehenen Ringnut (14) angeordnet ist.2. Drainage element according to claim 1, characterized in that the retaining ring (13) is arranged in an annular groove (14) provided on the sleeve (11) or the socket (6). 3. Drainageelement nach einem der Ansprüche 1 und 2, da­durch gekennzeichnet, dass der Haltering (13) als O-Ring ausgebilet ist.3. Drainage element according to one of claims 1 and 2, characterized in that the retaining ring (13) is designed as an O-ring. 4. Drainageelement nach einem der Ansprüche 1 bis 3, da­durch gekennzeichnet, dass die Muffe (11) aus einem elastischen Material gebildet ist.4. Drainage element according to one of claims 1 to 3, characterized in that the sleeve (11) is formed from an elastic material. 5. Drainageelement nach einem der Ansprüche 1 bis 4, da­durch gekennzeichnet, dass die in der Muffe (11) vor­gesehene Ringnut (14) einen etwa rechtwinklig zur Zugrichtung (17) der Filterhülle (4) verlaufenden Einstichwinkel (α) aufweist.5. Drainage element according to one of claims 1 to 4, characterized in that the annular groove (14) provided in the sleeve (11) has an insertion angle (α) running approximately at right angles to the pulling direction (17) of the filter sleeve (4). 6. Drainageelement nach einem der Ansprüche 1 bis 4, da­durch gekennzeichnet, dass der Einstichwinkel (α) der Ringnut (14) grösser als 90° ausgebildet ist.6. Drainage element according to one of claims 1 to 4, characterized in that the insertion angle (α) of the annular groove (14) is greater than 90 °. 7. Drainageelement nach einem der Ansprüche 1 bis 6, da­durch gekennzeichnet, dass die Fassung (6) pressraum­seitig mit einem an einer Schulter aufliegenden Bund versehen ist und anschliessend an letzteren eine in einen erweiterten zylindrischen Teil übergehende kon­ische Form aufweist.7. Drainage element according to one of claims 1 to 6, characterized in that the socket (6) is provided on the press space side with a collar resting on a shoulder and then has a conical shape which merges into an enlarged cylindrical part on the latter. 8. Drainageelement nach Anspruch 7, dadurch gekennzeich­net, dass die Schulter durch eine Durchtrittsöffnung (7) in der Behälterwand (5) des Pressraumes (1) ge­bildet ist.8. Drainage element according to claim 7, characterized in that the shoulder is formed by a passage opening (7) in the container wall (5) of the pressing space (1). 9. Drainageelement nach einem der Ansprüche 1 bis 8, da­durch gekennzeichnet, dass die Muffe (11) einen an die konische Form der Fassung (6) anlegbaren koni­schen Teil aufweist.9. Drainage element according to one of claims 1 to 8, characterized in that the sleeve (11) has a conical part which can be placed on the conical shape of the holder (6). 10. Drainageelement nach Anspruch 9, dadurch gekennzeich­net, dass die Muffe (11) beiderends des konischen Teils zylindrisch ausgebildet ist.10. Drainage element according to claim 9, characterized in that the sleeve (11) is cylindrical at both ends of the conical part. 11. Drainageelement nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass die Muffe (11) durch einen am Ende des Kerns (4) angeordneten, lösbaren Stift (10) axial gesichert ist, der je eine Bohrung der Kerns (3) und der Fassung (6) durchsetzt.11. Drainage element according to one of claims 1 to 10, characterized in that the sleeve (11) is axially secured by a releasable pin (10) arranged at the end of the core (4), each of which has a bore in the core (3) and the version (6) penetrates. 12. Drainageelement nach Anspruch 11, dadurch gekenn­zeichnet, dass zwischen der Muffe (11) und dem Stift (10) eine Endscheibe (16) angeordnet ist.12. Drainage element according to claim 11, characterized in that an end plate (16) is arranged between the sleeve (11) and the pin (10). 13. Drainageelement nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, dass der Haltering bzw. O-Ring (13) eine Abdichtung für die Feststoffe bildet.13. Drainage element according to one of claims 1 to 12, characterized in that the retaining ring or O-ring (13) forms a seal for the solids. 14. Verfahren zur Herstellung eines Drainageelementes nach einem der Ansprüche 1 bis 13, dadurch gekenn­zeichnet, dass die Fassung (6) nach dem Einsetzen in die Durchtrittsöffnung (7) mittels entgegengesetzt vordringendem konischen Dorn durch Ziehen erweitert wird, so dass die Fassung (6) mit der die Schulter bildenden Wand fest verbunden ist.14. A method for producing a drainage element according to one of claims 1 to 13, characterized in that the socket (6) after insertion into the passage opening (7) is expanded by pulling by means of an oppositely advancing conical mandrel, so that the socket (6) is firmly connected to the wall forming the shoulder.
EP90115864A 1989-08-22 1990-08-18 Drainage element for presses Expired - Lifetime EP0414172B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90115864T ATE94807T1 (en) 1989-08-22 1990-08-18 DRAINAGE ELEMENT FOR PRESSES.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3041/89 1989-08-22
CH3041/89A CH679565A5 (en) 1989-08-22 1989-08-22

Publications (3)

Publication Number Publication Date
EP0414172A2 true EP0414172A2 (en) 1991-02-27
EP0414172A3 EP0414172A3 (en) 1991-04-17
EP0414172B1 EP0414172B1 (en) 1993-09-22

Family

ID=4247293

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90115864A Expired - Lifetime EP0414172B1 (en) 1989-08-22 1990-08-18 Drainage element for presses

Country Status (11)

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US (1) US5130022A (en)
EP (1) EP0414172B1 (en)
AT (1) ATE94807T1 (en)
CA (1) CA2023175C (en)
CH (1) CH679565A5 (en)
CZ (1) CZ278431B6 (en)
DD (1) DD297113A5 (en)
DE (1) DE59002821D1 (en)
HU (1) HU206449B (en)
SK (1) SK277751B6 (en)
YU (1) YU47560B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995017299A1 (en) * 1993-12-23 1995-06-29 Bucher-Guyer Ag Maschinenfabrik Drainage component for presses to separate liquids from solids
WO1995032090A1 (en) * 1994-05-19 1995-11-30 Bucher-Guyer Ag Maschinenfabrik Filter wrapper for a draining element for presses to separate liquids from solids
WO1996022185A1 (en) * 1995-01-16 1996-07-25 Bucher-Guyer Ag Maschinenfabrik Filter shell for a drainage element for presses used to extract liquids from solids

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH684068A5 (en) * 1991-10-02 1994-07-15 Bucher Guyer Ag Masch Drainage element for presses.
US5366620A (en) * 1993-04-01 1994-11-22 Upchurch Scientific, Inc. Inlet filter
US5340546A (en) * 1993-04-05 1994-08-23 David Bromley Gas filter
CH691359A5 (en) * 1995-10-12 2001-07-13 Bucher Guyer Ag Drainage for a press for separating liquids from solids.
US8110016B2 (en) * 2008-12-11 2012-02-07 Dow Global Technologies Llc Fluid filter assembly including seal
US8496825B1 (en) 2010-10-26 2013-07-30 Dow Global Technologies Llc Spiral wound module including membrane sheet with regions having different permeabilities

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH397424A (en) * 1962-09-21 1965-08-15 Bucher Guyer Ag Masch Press for extracting juice from fruit, grapes and the like
CH413599A (en) * 1962-09-21 1966-05-15 Bucher Guyer Ag Masch Press for extracting juice from fruit, grapes and the like
DE3132466A1 (en) * 1981-08-17 1983-02-24 Bucher-Guyer AG Maschinenfabrik, 8166 Niederweningen, Zürich FASTENING DEVICE FOR A DRAINAGE ELEMENT IN A PRESS

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2418341A1 (en) * 1974-04-16 1975-11-06 Bucher Guyer Ag Masch DRAINAGE SYSTEM FOR PRESSES FOR JUICE PRODUCTION FROM FRUIT, GRAPES AND THE SAME PRESSED MATERIAL

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH397424A (en) * 1962-09-21 1965-08-15 Bucher Guyer Ag Masch Press for extracting juice from fruit, grapes and the like
CH413599A (en) * 1962-09-21 1966-05-15 Bucher Guyer Ag Masch Press for extracting juice from fruit, grapes and the like
DE3132466A1 (en) * 1981-08-17 1983-02-24 Bucher-Guyer AG Maschinenfabrik, 8166 Niederweningen, Zürich FASTENING DEVICE FOR A DRAINAGE ELEMENT IN A PRESS

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995017299A1 (en) * 1993-12-23 1995-06-29 Bucher-Guyer Ag Maschinenfabrik Drainage component for presses to separate liquids from solids
AU675743B2 (en) * 1993-12-23 1997-02-13 Bucher-Guyer Ag Maschinenfabrik Drainage component for presses to separate liquids from solids
WO1995032090A1 (en) * 1994-05-19 1995-11-30 Bucher-Guyer Ag Maschinenfabrik Filter wrapper for a draining element for presses to separate liquids from solids
US5732621A (en) * 1994-05-19 1998-03-31 Bucher-Guyer Ag Filter sleeve for a drain element for presses to remove liquids from solids
WO1996022185A1 (en) * 1995-01-16 1996-07-25 Bucher-Guyer Ag Maschinenfabrik Filter shell for a drainage element for presses used to extract liquids from solids
US5752438A (en) * 1995-01-16 1998-05-19 Bucher-Guyer Ag Filter envelope for a drainage element for presses used for separating fluids from solid materials

Also Published As

Publication number Publication date
DD297113A5 (en) 1992-01-02
SK277751B6 (en) 1994-12-07
CH679565A5 (en) 1992-03-13
US5130022A (en) 1992-07-14
CS407390A3 (en) 1992-01-15
ATE94807T1 (en) 1993-10-15
YU47560B (en) 1995-10-03
CA2023175C (en) 2000-05-02
HUT59576A (en) 1992-06-29
HU905086D0 (en) 1991-01-28
YU134290A (en) 1994-04-05
CZ278431B6 (en) 1994-01-19
CA2023175A1 (en) 1991-02-23
DE59002821D1 (en) 1993-10-28
EP0414172A3 (en) 1991-04-17
HU206449B (en) 1992-11-30
EP0414172B1 (en) 1993-09-22

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