EP0750548B1 - Filter shell for a drainage element for presses used to extract liquids from solids - Google Patents

Filter shell for a drainage element for presses used to extract liquids from solids Download PDF

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Publication number
EP0750548B1
EP0750548B1 EP96900072A EP96900072A EP0750548B1 EP 0750548 B1 EP0750548 B1 EP 0750548B1 EP 96900072 A EP96900072 A EP 96900072A EP 96900072 A EP96900072 A EP 96900072A EP 0750548 B1 EP0750548 B1 EP 0750548B1
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EP
European Patent Office
Prior art keywords
filter cover
ring
cover according
filter
secured
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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EP96900072A
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German (de)
French (fr)
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EP0750548A1 (en
Inventor
Eduard Hartmann
Alexandr Chara
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Bucher Guyer AG
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Bucher Guyer AG
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Publication of EP0750548A1 publication Critical patent/EP0750548A1/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B30PRESSES
    • B30BPRESSES IN GENERAL
    • B30B9/00Presses specially adapted for particular purposes
    • B30B9/02Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
    • B30B9/26Permeable casings or strainers
    • B30B9/262Permeable casings or strainers means disposed in the casing facilitating the squeezing-out of liquid

Definitions

  • the invention relates to a filter cover for a Drainage element for feeding to excrete Liquids from solid materials, especially for Fruit presses, the drainage element one rod-shaped, flexible drainage core with flow paths for Deriving the squeezed liquid from the press room the press and a surrounding the drainage core, includes liquid-permeable filter cover, and at least one end of the drainage element on one Juice collector plate, pressure plate, or on the press jacket of the Press is attached.
  • Fig. 1 shows a longitudinal section through the known Attachment of a drainage element in a fruit press.
  • a press space 2 delimited by a pressure plate 1 a known fruit press, not shown, are one A large number of drainage elements 3 are arranged.
  • a drainage element 3 consists essentially of a elastic drainage core 4, over the outside Grooves 5, as section A-A shows, the liquid during the pressing process is led out of the pressing chamber 2, and a stocking-shaped filter 6 stretched over it Solid-liquid separation.
  • Each at the ends of the Drainage element 3 are the drainage core 4 and the filter 6 fixed in a core holder 7.
  • the filter 6 will passed over an elastic cuff 8 and with an O-ring 9 fixed.
  • a disc 10 serves to support the cuff 8 against a cross pin 11 which laterally in bores of Drainage core 4 and the core holder 7 is pushed, and the axial and radial fixation of the two components 4 and 7 guaranteed to each other.
  • the core holder 7 is using a spacer 12 and a circlip 13 connected to the pressure plate 1.
  • a cam 14 of the locking ring 13 the through a slot in the spacer 12 in a groove of Core holder 7 engages in connection with a rear the pressure plate 1 lying collar 17 of the spacer 12th securing against axial displacement.
  • the filter 6 is through Pinch between core holder 7, cuff 8 and O-ring 9 in the spacer bush 12 held.
  • At least the cuff is 8 made of an elastically deformable material, preferably made of made of an elastomer.
  • the drainage filters 6 are at this known version by a knitting process made and to avoid running stitches on the Sewn ends near the disc 10 or cut hot to length, so that the stitches melt together easily.
  • the assembly of the filter element 6 with the complete Drainage element 3 is very labor intensive.
  • the filter 6 is pulled over the cuff 8, it is in the longitudinal direction to place correctly.
  • the O-ring 9 is over it pushed, it is together with the drainage core 4 in the Clamp core holder 7.
  • This usually comes the following assembly errors: - stitch formation due to strong pull, - wrong placement in the longitudinal direction, - O-ring shifted when inserted, - use of Lubricants, although not allowed. These errors can too insufficient attachment of the filter 6 in Guide the connector.
  • the filter 6 is then in operation pulled out of the press under the O-ring 9, and the Operation of the press is disrupted.
  • the invention is based on the object Disadvantages of a filter cover of the type mentioned to avoid.
  • this object is achieved by at least one ring-like bead, which at least one end of the filter cover by means of a loop the filter cover itself or by one connected to it Extension with the same firmly connected and such is deformable that he pushes the relevant end of the filter sleeve through an opening in allowed a fastener, the diameter maximum equal to the diameter of the filter cover in its the press attached form.
  • the ring-like bead consists of a ring and the end of the Filter cover wrapped around the ring and on one in front the end of the filter cover is attached.
  • the ring-like bead is composed of several rings and that the end of the filter sleeve around the rings struck and on an area of the Filter cover is attached.
  • the ring-like bead can be rolled up and Sew the relevant end of the filter cover itself or an extension connected to it.
  • Fig. 2 shows on the left a filter cover 26 similar to that already in Fig. 1 shown and explained type. Circumference and diameter the filter cover 26 can be produced as a result of a knitting process can be enlarged by stretching.
  • the end of the filter cover 26 is made of a plastic mass existing elastic ring 29 by flipping around inside of the end 23 of the filter sleeve 26 around the ring 29 attached. As indicated by a seam 24, the end is 23 on a further back region of the filter cover 26 fastened by sewing.
  • the elastic ring 29 is between an outer sleeve 46 and an inner sleeve 48 clamped.
  • the inner sleeve 48 occurs as a rigid part instead of the elastic cuff 8 1. It has a neck 47 for support the end of the filter sleeve 26 from the inside and is with a cross pin 11 ', which the outer sleeve 46 and the Drainage core 4 penetrates, axially fixed.
  • the inner diameter 31 of the filter sleeve 26 is much larger than the diameter 32 of the Drainage core 4. This can cause an otherwise occurring the filter cover 26 shrinks tightly on the drainage core 4 be prevented.
  • the inner Diameter 31 of the filter sleeve 26 by beating around enlarged by the elastic ring 29 at the end.
  • the Maximum diameter equal to that, the diameter 31 corresponding outer diameter of the filter cover. This is possible because the ring-like bead 23, 29 in suitable shape is deformable.
  • Fig. 3 shows the use of an inventive Filter cover 6 'with a fastening device per se known type, as already explained in Fig. 1.
  • a fastening device of Fig. 1st corresponding components are those already specified there Reference numerals.
  • the filter 6 ' is as shown in FIG. 3 as in the 2 from the inside to the outside around the O-ring 9 struck around.
  • the end 33 of the filter cover 6 ' is simply by means of a seam 24 on another back area of the filter cover 6 'by sewing attached.
  • As a result of the production by means of a Knitting is the extent of the filter 6 'stretchable, he can therefore, as shown in FIG. 3, the enlarged Diameter of the elastic cuff 8 in the area of the O-ring 9 adjust.
  • FIGs 4 to 14 show embodiments of the Filter cover with an annular bead according to the invention in partial section.
  • the filter sleeve 26 is like 2 from the inside to the outside in the embodiment according to FIG knocked around an elastic ring 29.
  • the end 33 of the However, filter cover 26 has not been hammered in again, but simply fixed with a seam 24.
  • the end 43 of the Filter cover 26 also simply with a seam 24 attached, but the end 43 is here from the outside to the outside beaten around the inside of the ring 29.
  • the ring can also be made from a comparatively hard one elastic material exist as long as its Deformability only by pushing through the opening the outer sleeve 46 allows, as described in FIG. 2.
  • a such material is in the execution of the ring 59th 6 provided.
  • the cross section of the Ring 59 selected rectangular, and the shape can be in Change essentially only in the area between circle and oval.
  • the end 53 of the filter sleeve 26 is in the area 54 Sewing or by ultrasonic welding on further back lying area of the filter sleeve 26 attached.
  • the end is 93 or 92 of the filter sleeve 26 is expediently of such a length that that when it is attached to the press according to FIG the end of the filter sleeve 6 'can protrude to the right. Possible slight re-tightening of the filter sleeve 26 then lead not a loss of retention.
  • a long formation of the end of the filter sleeve 26 can but can also be expedient if this is shown in FIG. 4 or Fig. 6 is attached.
  • Fig. 12 shows such a long one Formation of the end 94, which is an additional security the attachment.
  • ring-like bead 99 at at least one end the filter cover 26 by rolling up the filter cover or an extension connected to it and wraps around with sheath 26 or extension 95.
  • the rolled up bead 99 is in this case by sewing in a zone 98 secured against loosening.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filtration Of Liquid (AREA)
  • Insulated Conductors (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)

Abstract

PCT No. PCT/CH96/00005 Sec. 371 Date Sep. 16, 1996 Sec. 102(e) Date Sep. 16, 1996 PCT Filed Jan. 8, 1996 PCT Pub. No. WO96/22185 PCT Pub. Date Jul. 25, 1996A filter envelope (26) for a rod-shaped, flexible drainage core (4) with flow paths (5) for removing the pressed-out fluid from the pressing chamber of a press. By winding the filter envelope (26) itself around it, a ring-shaped bulge (20) is fixedly connected with it (26) for assembling the filter envelope (26) and the drainage core (4) on one or both ends of the press.

Description

Die Erfindung betrifft eine Filterhülle für ein Drainageelement für Fressen zum Ausscheiden von Flüssigkeiten aus festen Stoffen, insbesondere für Früchtepressen, wobei das Drainageelement einen stabförmigen, flexiblen Drainagekern mit Fliesswegen zum Ableiten der ausgepressten Flüssigkeit aus dem Pressraum der Presse und eine den Drainagekern umgebende, flüssigkeitsdurchlässige Filterhülle umfasst, und mindestens ein Ende des Drainageelementes an einer Saftsammelplatte, Druckplatte, oder am Pressmantel der Presse befestigt ist.The invention relates to a filter cover for a Drainage element for feeding to excrete Liquids from solid materials, especially for Fruit presses, the drainage element one rod-shaped, flexible drainage core with flow paths for Deriving the squeezed liquid from the press room the press and a surrounding the drainage core, includes liquid-permeable filter cover, and at least one end of the drainage element on one Juice collector plate, pressure plate, or on the press jacket of the Press is attached.

Fig. 1 zeigt einen Längsschnitt durch die bekannte Befestigung eines Drainageelementes in einer Früchtepresse. In einem durch je eine Druckplatte 1 begrenzten Pressraum 2 einer nicht dargestellten bekannten Früchtepresse sind eine Vielzahl Drainageelemente 3 angeordnet.Fig. 1 shows a longitudinal section through the known Attachment of a drainage element in a fruit press. In a press space 2 delimited by a pressure plate 1 a known fruit press, not shown, are one A large number of drainage elements 3 are arranged.

Ein Drainageelement 3 besteht im wesentlichen aus einem elastischen Drainagekern 4, über dessen aussenliegende Nuten 5, wie der Schnitt A-A zeigt, die Flüssigkeit während des Pressvorganges aus dem Pressraum 2 herausgeleitet wird, und einem darüber gespannten strumpfförmigen Filter 6 zur Fest-Flüssig-Trennung. Jeweils an den Enden des Drainageelementes 3 sind der Drainagekern 4 und der Filter 6 in einem Kernhalter 7 befestigt. Der Filter 6 wird dabei über eine elastische Stulpe 8 geführt und mit einem O-Ring 9 fixiert. Eine Scheibe 10 dient zur Abstützung der Stulpe 8 gegen einen Querstift 11, der seitlich in Bohrungen des Drainagekernes 4 und des Kernhalters 7 geschoben wird, und so die axiale und radiale Fixierung der beiden Bauteile 4 und 7 zueinander gewährleistet.A drainage element 3 consists essentially of a elastic drainage core 4, over the outside Grooves 5, as section A-A shows, the liquid during the pressing process is led out of the pressing chamber 2, and a stocking-shaped filter 6 stretched over it Solid-liquid separation. Each at the ends of the Drainage element 3 are the drainage core 4 and the filter 6 fixed in a core holder 7. The filter 6 will passed over an elastic cuff 8 and with an O-ring 9 fixed. A disc 10 serves to support the cuff 8 against a cross pin 11 which laterally in bores of Drainage core 4 and the core holder 7 is pushed, and the axial and radial fixation of the two components 4 and 7 guaranteed to each other.

Der Kernhalter 7 wird mithilfe einer Distanzbuchse 12 und eines Sicherungsringes 13 mit der Druckplatte 1 verbunden. Dabei stellt ein Nocken 14 des Sicherungsringes 13, der durch einen Schlitz in der Distanzbuchse 12 in eine Nut des Kernhalters 7 hineingreift, in Verbindung mit einem hinter der Druckplatte 1 liegenden Bund 17 der Distanzbuchse 12 die Sicherung gegen axiales Verschieben her.The core holder 7 is using a spacer 12 and a circlip 13 connected to the pressure plate 1. Here, a cam 14 of the locking ring 13, the through a slot in the spacer 12 in a groove of Core holder 7 engages in connection with a rear the pressure plate 1 lying collar 17 of the spacer 12th securing against axial displacement.

Wie Fig. 1 erkennen lässt, ist der Filter 6 durch Einklemmen zwischen Kernhalter 7, Stulpe 8 und O-Ring 9 in der Distanzbuchse 12 gehalten. Mindestens die Stulpe 8 ist aus einem elastisch verformbaren Material, vorzugsweise aus einem Elastomer gefertigt. Die Drainagefilter 6 sind bei dieser bekannten Ausführung durch einen Strickvorgang hergestellt und zwecks Vermeidung von Laufmaschen an den Enden nahe der Scheibe 10 abgenäht oder heiss abgelängt, damit die Maschen gegenseitig leicht verschmelzen.As can be seen in FIG. 1, the filter 6 is through Pinch between core holder 7, cuff 8 and O-ring 9 in the spacer bush 12 held. At least the cuff is 8 made of an elastically deformable material, preferably made of made of an elastomer. The drainage filters 6 are at this known version by a knitting process made and to avoid running stitches on the Sewn ends near the disc 10 or cut hot to length, so that the stitches melt together easily.

Diese Art der Konstruktion hat folgende Nachteile:This type of construction has the following disadvantages:

Der Zusammenbau des Filterelementes 6 mit dem kompletten Drainageelement 3 ist sehr arbeitsintensiv. Der Filter 6 wird über die Stulpe 8 gezogen, er ist in Längsrichtung richtig zu plazieren. Dann wird der O-Ring 9 darüber geschoben, er ist gemeinsam mit dem Drainagekern 4 in den Kernhalter 7 einzuspannen. Dabei kommen in der Regel folgende Montagefehler vor: - Laufmaschenbildung durch zu starken Zug, - falsche Plazierung in Längsrichtung, - O-Ring beim Einschieben verschoben, - Verwendung von Schmiermitteln, obwohl unzulässig. Diese Fehler können zu einer ungenügenden Befestigung des Filters 6 im Anschlussteil führen. Der Filter 6 wird dann beim Betrieb der Presse unter dem O-Ring 9 herausgezogen, und der Betrieb der Presse wird gestört.The assembly of the filter element 6 with the complete Drainage element 3 is very labor intensive. The filter 6 is pulled over the cuff 8, it is in the longitudinal direction to place correctly. Then the O-ring 9 is over it pushed, it is together with the drainage core 4 in the Clamp core holder 7. This usually comes the following assembly errors: - stitch formation due to strong pull, - wrong placement in the longitudinal direction, - O-ring shifted when inserted, - use of Lubricants, although not allowed. These errors can too insufficient attachment of the filter 6 in Guide the connector. The filter 6 is then in operation pulled out of the press under the O-ring 9, and the Operation of the press is disrupted.

Ein Problem ergibt sich auch bei der Demontage der durch den normalen Betrieb verschlissenen Filter 6, weil der O-Ring 9 teilweise sehr fest sitzt und dadurch die Demontage erschwert.A problem also arises when dismantling the through normal operation worn filter 6 because of O-ring 9 is sometimes very tight and therefore the Disassembly difficult.

Der Erfindung liegt die Aufgabe zugrunde, die genannten Nachteile durch eine Filterhülle der eingangs erwähnten Art zu vermeiden.The invention is based on the object Disadvantages of a filter cover of the type mentioned to avoid.

Gemäss der Erfindung wird diese Aufgabe gelöst durch mindestens einen ringartigen Wulst, welcher an mindestens einem Ende der Filterhülle mittels einer Umschlingung durch die Filterhülle selbst oder durch eine daran angeschlossene Verlängerung mit derselben fest verbunden und derart deformierbar ist, dass er ein Hindurchschieben des betreffenden Endes der Filterhülle durch eine Öffnung in einem Befestigungselement erlaubt, deren Durchmesser maximal gleich dem Durchmesser der Filterhülle in ihrer an der Presse befestigten Form ist.According to the invention, this object is achieved by at least one ring-like bead, which at least one end of the filter cover by means of a loop the filter cover itself or by one connected to it Extension with the same firmly connected and such is deformable that he pushes the relevant end of the filter sleeve through an opening in allowed a fastener, the diameter maximum equal to the diameter of the filter cover in its the press attached form.

Es erweist sich dabei als besonders vorteilhaft, wenn der ringartige Wulst aus einem Ring besteht und das Ende der Filterhülle um den Ring herum geschlagen und an einem vor dem Ende liegenden Bereich der Filterhülle befestigt ist.It proves to be particularly advantageous if the ring-like bead consists of a ring and the end of the Filter cover wrapped around the ring and on one in front the end of the filter cover is attached.

Gemäss einer anderen Ausführungsform ist vorgesehen, dass sich der ringartige Wulst aus mehreren Ringen zusammensetzt und dass das Ende der Filterhülle um die Ringe herum geschlagen und an einem vor dem Ende liegenden Bereich der Filterhülle befestigt ist. In besonders einfacher Weise lässt sich der ringartige Wulst durch Aufrollen und Vernähen des betreffenden Endes der Filterhülle selbst oder einer daran angeschlossenen Verlängerung bilden. Weitere Ausführungsformen der Erfindung sind in den Patentansprüchen gekennzeichnet. According to another embodiment, it is provided that the ring-like bead is composed of several rings and that the end of the filter sleeve around the rings struck and on an area of the Filter cover is attached. In a particularly simple way the ring-like bead can be rolled up and Sew the relevant end of the filter cover itself or an extension connected to it. Further Embodiments of the invention are in the Characterized claims.

Die Erfindung ist in der folgenden Beschreibung und den Zeichnungen, die Ausführungsbeispiele darstellen, näher erläutert.The invention is in the following description and Drawings that illustrate embodiments, closer explained.

Es zeigen:

  • Fig. 1 einen Schnitt durch eine bekannte Befestigung eines Drainageelementes an der Druckplatte einer Früchtepresse,
  • Fig. 2 einen Schnitt durch eine erfindungsgemässe Filterhülle und einen zugehörigen Haltekörper zur Erkärung der Montage an der Druckplatte einer Früchtepresse, und
  • Fig. 3 bis Fig. 14 Ausführungsformen der Filterhülle mit einem erfindungsgemässen ringartigen Wulst im Teilschnitt.
  • Show it:
  • 1 shows a section through a known fastening of a drainage element to the pressure plate of a fruit press,
  • 2 shows a section through a filter casing according to the invention and an associated holding body for explaining the mounting on the pressure plate of a fruit press, and
  • Fig. 3 to Fig. 14 embodiments of the filter cover with an inventive annular bead in partial section.
  • Fig. 2 zeigt links eine Filterhülle 26 ähnlich der schon in Fig. 1 gezeigten und erklärten Art. Umfang und Durchmesser der Filterhülle 26 können infolge einer Herstellung mittels eines Strickverfahrens durch Dehnung vergrössert werden. Am Ende der Filterhülle 26 ist ein aus einer Kunststoffmasse bestehender elastischer Ring 29 durch Herumschlagen von innen des Endes 23 der Filterhülle 26 um den Ring 29 befestigt. Wie durch eine Naht 24 angedeutet, ist das Ende 23 an einem weiter zurückliegenden Bereich der Filterhülle 26 durch vernähen befestigt.Fig. 2 shows on the left a filter cover 26 similar to that already in Fig. 1 shown and explained type. Circumference and diameter the filter cover 26 can be produced as a result of a knitting process can be enlarged by stretching. At the The end of the filter cover 26 is made of a plastic mass existing elastic ring 29 by flipping around inside of the end 23 of the filter sleeve 26 around the ring 29 attached. As indicated by a seam 24, the end is 23 on a further back region of the filter cover 26 fastened by sewing.

    Der elastische Ring 29 ist zwischen einer Aussenhülse 46 und einer Innenhülse 48 eingespannt. Die Innenhülse 48 tritt als starres Teil anstelle der elastischen Stulpe 8 gemäss Fig. 1. Sie weist einen Hals 47 zur Unterstützung des Endes der Filterhülle 26 von innen auf und ist mit einem Querstift 11', welcher die Aussenhülse 46 und den Drainagekern 4 durchdringt, axial fixiert.The elastic ring 29 is between an outer sleeve 46 and an inner sleeve 48 clamped. The inner sleeve 48 occurs as a rigid part instead of the elastic cuff 8 1. It has a neck 47 for support the end of the filter sleeve 26 from the inside and is with a cross pin 11 ', which the outer sleeve 46 and the Drainage core 4 penetrates, axially fixed.

    Für eine einwandfreie Funktion des Drainagevorganges ist es wichtig, dass der innere Durchmesser 31 der Filterhülle 26 wesentlich grösser ist, als der Durchmesser 32 des Drainagekernes 4. Damit kann ein sonst auftretendes festschrumpfen der Filterhülle 26 auf dem Drainagekern 4 verhindert werden. Wie Fig. 2 zeigt, ist der innere Durchmesser 31 der Filterhülle 26 durch das Herumschlagen um den elastischen Ring 29 an deren Ende vergrössert. Zur Montage ist es jedoch erforderlich, dieses Ende durch die engste Öffnung der Aussenhülse 46 hindurchzustecken, deren Durchmesser maximal gleich dem, dem Durchmesser 31 entsprechenden äusseren Durchmesser der Filterhülle ist. Dies ist möglich, weil der ringartige Wulst 23, 29 in geeigneter Form deformierbar ausgebildet ist.It is for a perfect functioning of the drainage process it is important that the inner diameter 31 of the filter sleeve 26 is much larger than the diameter 32 of the Drainage core 4. This can cause an otherwise occurring the filter cover 26 shrinks tightly on the drainage core 4 be prevented. As shown in Fig. 2, the inner Diameter 31 of the filter sleeve 26 by beating around enlarged by the elastic ring 29 at the end. For However, it is necessary to assemble this end through the through the narrowest opening of the outer sleeve 46, the Maximum diameter equal to that, the diameter 31 corresponding outer diameter of the filter cover. This is possible because the ring-like bead 23, 29 in suitable shape is deformable.

    Fig. 3 zeigt die Verwendung einer erfindungsgemässen Filterhülle 6' mit einer Befestigungsvorrichtung an sich bekannter Art, wie sie schon zu Fig. 1 erklärt ist. An dieser Befestigungsvorrichtung tragen der Fig. 1 entsprechende Bauteile die schon dort angegebenen Bezugszeichen. Das Filter 6' ist gemäss Fig. 3 wie bei der Ausführung gemäss Fig. 2 von innen nach aussen um um den O-Ring 9 herumgeschlagen. Das Ende 33 der Filterhülle 6' ist einfach mittels einer Naht 24 an einem weiter zurückliegenden Bereich der Filterhülle 6' durch Vernähen befestigt. Infolge der Herstellung mittels eines Strickverfahrens ist der Umfang des Filters 6' dehnbar, er kann sich daher, wie Fig. 3 zeigt, dem vergrösserten Durchmesser der elastischen Stulpe 8 im Bereich des O-Ringes 9 anpassen.Fig. 3 shows the use of an inventive Filter cover 6 'with a fastening device per se known type, as already explained in Fig. 1. On this fastening device of Fig. 1st corresponding components are those already specified there Reference numerals. The filter 6 'is as shown in FIG. 3 as in the 2 from the inside to the outside around the O-ring 9 struck around. The end 33 of the filter cover 6 'is simply by means of a seam 24 on another back area of the filter cover 6 'by sewing attached. As a result of the production by means of a Knitting is the extent of the filter 6 'stretchable, he can therefore, as shown in FIG. 3, the enlarged Diameter of the elastic cuff 8 in the area of the O-ring 9 adjust.

    Die Fig. 4 bis Fig. 14 zeigen Ausführungsformen der Filterhülle mit einem erfindungsgemässen ringartigen Wulst im Teilschnitt. Gemäss Fig. 4 ist die Filterhülle 26 wie bei der Ausführung gemäss Fig. 2 von innen nach aussen um einen elastischen Ring 29 herumgeschlagen. Das Ende 33 der Filterhülle 26 ist jedoch nicht nochmals eingeschlagen, sondern einfach mittels einer Naht 24 fixiert. Im Ausführungsbeispiel gemäss Fig. 5 ist das Ende 43 der Filterhülle 26 ebenfalls einfach mit einer Naht 24 befestigt, das Ende 43 ist jedoch hier von aussen nach innen um den Ring 29 herumgeschlagen.4 to 14 show embodiments of the Filter cover with an annular bead according to the invention in partial section. 4, the filter sleeve 26 is like 2 from the inside to the outside in the embodiment according to FIG knocked around an elastic ring 29. The end 33 of the However, filter cover 26 has not been hammered in again, but simply fixed with a seam 24. in the 5 is the end 43 of the Filter cover 26 also simply with a seam 24 attached, but the end 43 is here from the outside to the outside beaten around the inside of the ring 29.

    Der Ring kann kann auch aus einem vergleichsweise harten elastischen Material bestehen, solange seine Deformierbarkeit nur ein Hindurchschieben durch die Öffnung der Aussenhülse 46 erlaubt, wie zu Fig. 2 beschrieben. Ein solches Material ist bei der Ausführung des Ringes 59 gemäss Fig. 6 vorgesehen. Hier ist der Querschnitt des Ringes 59 rechteckig gewählt, und dessen Form lässt sich im Wesentlichen nur im Bereich zwischen Kreis und Oval ändern. Das Ende 53 der Filterhülle 26 ist in dem Bereich 54 durch Nähung oder durch Ultraschall-Schweissung am weiter zurück liegenden Bereich der Filterhülle 26 befestigt.The ring can also be made from a comparatively hard one elastic material exist as long as its Deformability only by pushing through the opening the outer sleeve 46 allows, as described in FIG. 2. A such material is in the execution of the ring 59th 6 provided. Here is the cross section of the Ring 59 selected rectangular, and the shape can be in Change essentially only in the area between circle and oval. The end 53 of the filter sleeve 26 is in the area 54 Sewing or by ultrasonic welding on further back lying area of the filter sleeve 26 attached.

    Zum Erzielen bestimmter Formen des ringartigen Wulstes lassen sich anstelle der Ringe 9, 29, 59 der Fig. 2 bis 6 Gruppen von mehreren Ringen verwenden. So zeigt Fig. 7 eine Gruppe von zwei elastischen Ringen 68, 69, welche von der Filterhülle 26 gemeinsam umschlungen sind. Die Befestigung des Endes 33 der Hülle 26 in der Zone 24 entspricht jener gemäss Fig. 4. Anstelle der Ringe 9, 29, 59 lassen sich aber auch Seilringe 79 gemäss Fig. 8 oder Drahtwendel 89 gemäss Fig. 9 als Federringe verwenden. Will man bei der Befestigung des Endes 33, 53 der Filterhülle 26 auf eine Nähung oder Schweissung verzichten, so lässt sich hierfür auch ein weiterer, aussen liegender Ring 19 gemäss Fig. 10 oder 90 gemäss Fig. 11 verwenden. Hierbei ist das Ende 93 oder 92 der Filterhülle 26 zweckmässig so lang ausgebildet, dass es bei Befestigung an der Presse gemäss Fig. 3 über das Ende der Filterhülle 6' nach rechts hinausragen kann. Mögliche geringe Nachzüge der Filterhülle 26 führen dann nicht zu einem Verlust der Haltewirkung.To achieve certain shapes of the ring-like bead can be used instead of the rings 9, 29, 59 of FIGS. 2 to 6 Use groups of multiple rings. 7 shows one Group of two elastic rings 68, 69, which of the Filter sleeve 26 are wrapped together. The attachment the end 33 of the sheath 26 in the zone 24 corresponds to that 4. Instead of the rings 9, 29, 59 can be but also rope rings 79 according to FIG. 8 or wire helix 89 9 as spring washers. Do you want to Attachment of the end 33, 53 of the filter sleeve 26 to one You can do this without sewing or welding also a further, external ring 19 according to FIG. 10 or 90 as shown in FIG. 11. The end is 93 or 92 of the filter sleeve 26 is expediently of such a length that that when it is attached to the press according to FIG the end of the filter sleeve 6 'can protrude to the right. Possible slight re-tightening of the filter sleeve 26 then lead not a loss of retention.

    Eine lange Ausbildung des Endes der Filterhülle 26 kann aber auch zweckmässig sein, wenn dieses gemäss Fig. 4 oder Fig. 6 befestigt ist. Fig. 12 zeigt eine derartige lange Ausbildung des Endes 94, welche eine zusätzliche Sicherheit der Befestigung bewirkt. Will man sich zur Befestigung des ringartigen Wulstes an der Filterhülle von den Materialeigenschaften derselben freimachen, so kann man gemäss Fig. 13 an die Filterhülle 26 zunächst eine Verlängerung 95 anschliessen, beispielsweise durch eine Nähung 24. Die Verlängerung 95 umschlingt dann, ähnlich wie in Fig. 4 gezeigt, einen Ring 29.A long formation of the end of the filter sleeve 26 can but can also be expedient if this is shown in FIG. 4 or Fig. 6 is attached. Fig. 12 shows such a long one Formation of the end 94, which is an additional security the attachment. Do you want to attach the ring-like beads on the filter cover of the To release material properties of the same, you can 13 to the filter sleeve 26, first a Connect extension 95, for example with a Sewing 24. The extension 95 then wraps around, similar to 4, a ring 29.

    Einer oder mehrere Ringe der in den Fig. 2 bis 13 gezeigten Art sind dann entbehrlich, wenn man, wie in Fig. 14 gezeigt, den ringartigen Wulst 99 an mindestens einem Ende der Filterhülle 26 durch Aufrollen der Filterhülle oder einer daran angeschlossenen Verlängerung selbst herstellt und mit Hülle 26 oder Verlängerung 95 umschlingt. Der aufgrollte Wulst 99 ist in diesem Falle durch Vernähen in einer Zone 98 gegen ein Lösen gesichert.One or more rings of the one shown in Figs. 2 to 13 Kinds are not necessary if, as in Fig. 14 shown, the ring-like bead 99 at at least one end the filter cover 26 by rolling up the filter cover or an extension connected to it and wraps around with sheath 26 or extension 95. Of the rolled up bead 99 is in this case by sewing in a zone 98 secured against loosening.

    Claims (14)

    1. Filter cover for a drainage element (3) for presses for separating liquids from solids, in particular for fruit presses, the drainage element (3) including a rod-shaped flexible drainage core (4) with flow paths (5) for leading the expressed liquid away out of the pressing space (2) of the press and a liquid-permeable filter cover (6, 6', 26) surrounding the drainage core (4), and at least one end of the drainage element (3) being secured to a juice-collecting plate, pressing plate (1) or to the casing of the press, characterised by at least one annular bead (29, 59, 68, 69, 79, 89, 99) which is rigidly connected to at least one end of the filter cover (6, 6', 26) by means of wrapping by the filter cover itself or by an extension (95) connected thereto and is deformable in such a manner that the relevant end of the filter cover (6, 6', 26) can be pushed through an opening in a securing element (7, 46), the diameter of which is equal at most to the diameter of the filter cover (6', 26) in the form in which it is secured to the press.
    2. Filter cover according to claim 1, characterised in that the annular bead consists of a ring (29, 59, 79, 89) and that the end (33, 43, 53) of the filter cover (26) is wrapped around the ring and secured to a region of the filter cover (26) situated in front of the end.
    3. Filter cover according to claim 2, characterised in that the ring is an O-ring (29).
    4. Filter cover according to claim 2, characterised in that the ring consists of a helix of wire (89).
    5. Filter cover according to claim 2, characterised in that the ring (59) has a rectangular cross section.
    6. Filter cover according to claim 2, characterised in that the ring (59) is elastically deformable in such a manner that its shape can be varied essentially only between a circle and an oval.
    7. Filter cover according to claim 2, characterised in that the ring (79) consists of a stranded material.
    8. Filter cover according to claim 1, characterised in that the annular bead is composed of a plurality of rings (68, 69) and that the end (33) of the filter cover (26) is wrapped around the rings (68, 69) and is secured to a region of the filter cover (26) situated in front of the end.
    9. Filter cover according to one of claims 2 to 8, characterised in that the end of the filter cover (26) or the extension connected thereto is wrapped around the ring (29) from the outside to the inside.
    10. Filter cover according to one of claims 2 to 9, characterised in that the wrapped part of the filter cover (26) or the extension (95) connected thereto is secured to the region situated in front of the end by sewing.
    11. Filter cover according to one of claims 2 to 9, characterised in that the wrapped part of the filter cover (26) or the extension (95) connected thereto is secured to the region situated in front of the end by ultrasonic welding (54).
    12. Filter cover according to one of claims 2 to 8 and 10 to 11, characterised in that the length of the wrapped part (92, 93, 94) of the filter cover (26) or the extension connected thereto after it is secured to the region situated in front of the end is such that it can project beyond the end of the filter cover for securing to the press.
    13. Filter cover according to one of claims 2 to 8, characterised in that the part (93, 92) of the filter cover (26) or the extension connected thereto wrapped around the ring (29, 59) is secured to the region situated in front of the end by a second external ring (19, 90) and its length is then such that it can project beyond the end of the filter cover for securing to the press.
    14. Filter cover according to claim 1, characterised in that the annular bead (99) is formed by rolling up and sewing the relevant end of the filter cover (26) or an extension connected thereto.
    EP96900072A 1995-01-16 1996-01-08 Filter shell for a drainage element for presses used to extract liquids from solids Expired - Lifetime EP0750548B1 (en)

    Applications Claiming Priority (4)

    Application Number Priority Date Filing Date Title
    CH115/95 1995-01-16
    CH11595 1995-01-16
    CH00115/95A CH688710A5 (en) 1995-01-16 1995-01-16 Filter envelope for a drainage element for presses for separating liquids from solids.
    PCT/CH1996/000005 WO1996022185A1 (en) 1995-01-16 1996-01-08 Filter shell for a drainage element for presses used to extract liquids from solids

    Publications (2)

    Publication Number Publication Date
    EP0750548A1 EP0750548A1 (en) 1997-01-02
    EP0750548B1 true EP0750548B1 (en) 1999-10-27

    Family

    ID=4179597

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP96900072A Expired - Lifetime EP0750548B1 (en) 1995-01-16 1996-01-08 Filter shell for a drainage element for presses used to extract liquids from solids

    Country Status (10)

    Country Link
    US (1) US5752438A (en)
    EP (1) EP0750548B1 (en)
    AT (1) ATE186013T1 (en)
    CH (1) CH688710A5 (en)
    CZ (1) CZ289506B6 (en)
    DE (1) DE59603455D1 (en)
    HU (1) HU219649B (en)
    PL (1) PL179987B1 (en)
    SK (1) SK281884B6 (en)
    WO (1) WO1996022185A1 (en)

    Families Citing this family (1)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE20117227U1 (en) * 2001-10-24 2003-02-27 Willmes Anlagentechnik Gmbh Press for squeezing liquid-containing substances

    Family Cites Families (9)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US3103164A (en) * 1960-02-12 1963-09-10 Willmes Josef Drum arrangement for a moisture extracting press
    DE1152886B (en) * 1960-12-20 1963-08-14 Josef Willmes Press drum
    FR1353177A (en) * 1962-09-21 1964-05-29 Bucher Guyer Ag Masch Press for extracting juice from fruit, grapes or the like
    CH413599A (en) * 1962-09-21 1966-05-15 Bucher Guyer Ag Masch Press for extracting juice from fruit, grapes and the like
    CH676692A5 (en) * 1988-08-30 1991-02-28 Bucher Guyer Ag Masch
    CH679565A5 (en) * 1989-08-22 1992-03-13 Bucher Guyer Ag Masch
    CH680382A5 (en) * 1989-08-24 1992-08-14 Bucher Guyer Ag Masch
    CH684068A5 (en) * 1991-10-02 1994-07-15 Bucher Guyer Ag Masch Drainage element for presses.
    CH687686A5 (en) * 1993-12-23 1997-01-31 Bucher Guyer Ag Masch Drainage for presses for separating liquids from solids.

    Also Published As

    Publication number Publication date
    CH688710A5 (en) 1998-01-30
    CZ261296A3 (en) 1997-02-12
    SK116996A3 (en) 1997-04-09
    EP0750548A1 (en) 1997-01-02
    ATE186013T1 (en) 1999-11-15
    WO1996022185A1 (en) 1996-07-25
    HU9602518D0 (en) 1996-11-28
    PL179987B1 (en) 2000-11-30
    PL316254A1 (en) 1997-01-06
    DE59603455D1 (en) 1999-12-02
    HUP9602518A3 (en) 1999-03-29
    CZ289506B6 (en) 2002-02-13
    HUP9602518A2 (en) 1997-05-28
    SK281884B6 (en) 2001-08-06
    HU219649B (en) 2001-06-28
    US5752438A (en) 1998-05-19

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