EP0414172B1 - Element de drainage pour presses - Google Patents

Element de drainage pour presses Download PDF

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Publication number
EP0414172B1
EP0414172B1 EP90115864A EP90115864A EP0414172B1 EP 0414172 B1 EP0414172 B1 EP 0414172B1 EP 90115864 A EP90115864 A EP 90115864A EP 90115864 A EP90115864 A EP 90115864A EP 0414172 B1 EP0414172 B1 EP 0414172B1
Authority
EP
European Patent Office
Prior art keywords
drainage element
sleeve
element according
holder
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.)
Expired - Lifetime
Application number
EP90115864A
Other languages
German (de)
English (en)
Other versions
EP0414172A3 (en
EP0414172A2 (fr
Inventor
Alexandr Chara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bucher Guyer AG
Original Assignee
Bucher Guyer AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bucher Guyer AG filed Critical Bucher Guyer AG
Priority to AT90115864T priority Critical patent/ATE94807T1/de
Publication of EP0414172A2 publication Critical patent/EP0414172A2/fr
Publication of EP0414172A3 publication Critical patent/EP0414172A3/de
Application granted granted Critical
Publication of EP0414172B1 publication Critical patent/EP0414172B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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 flexible 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 sleeve, which is washed 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 press chamber, is pressed into the longitudinal drainage grooves of the core by the pressure and thus impair the drainage. At this point, the frequent movements of the core result in high wear and tear.
  • a press for juice extraction according to CH-A-413'599 (Bucher-Guyer AG) is also known, which comprises a horizontal rotatable press cylinder with a pressure plate and a counter-pressure plate, between which plates flexible tension members are tensioned, which consist of a flexible core and a juice-permeable shell that filters the press juice. Both the sheath and the flexible core are firmly anchored at their ends to the pressure and counter-pressure plate, and the stretched length of the sheath is greater than that of the flexible core.
  • 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.
  • a drainage element of the type mentioned at the outset which is characterized in that the end of the core facing the container shell has a sleeve, between which and the surrounding frame the filter sleeve is anchored in a ring groove by means of a retaining ring.
  • 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 inexpensive to 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 projects with its longer part into a liquid collecting space or juice collecting channel 8 which is delimited by a wall 9 or is 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 casing 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 tensile direction, 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)
  • Sink And Installation For Waste Water (AREA)
  • Jellies, Jams, And Syrups (AREA)
  • Centrifugal Separators (AREA)

Claims (14)

  1. Elément de drainage (2) pour presses, servant à séparer des liquides de matières solides, en particulier pour presses à fruits d'arbres fruitiers, à raisins ou autres fruits, comprenent un noyau souple (3) en forme de barreau, entouré d'une gaine filtrante (4) perméable au liquide et fixé dans une monture (6) reliée à la paroi (5) de la cuve, caractérisé en ce que l'extrémité du noyau (3) dirigée vers la paroi (5) de la cuve présente un manchon (11) entre lequel (11) et la monture (6) qui l'entoure, la gaine filtrante (4) est ancrée dans une gorge annulaire (14) au moyen d'une bague de maintien (13).
  2. Elément de drainage selon la revendication 1, caractérisé en ce que la bague de maintien (13) est disposée dans une gorge annulaire (14) prévue sur le manchon (11) ou la monture (6).
  3. Elément de drainage selon la revendication 1 ou 2, caractérisé en ce que la bague de maintien (13) est réalisée comme un joint torique.
  4. Elément de drainage selon une des revendications 1 à 3, caractérisé en ce que le manchon (11) est fait d'un matériau élastique.
  5. Elément de drainage selon une des revendications 1 à 4, caractérisé en ce que la gorge annulaire (14) prévue dans le manchon (11) présente un angle d'entrée (α) à peu près perpendiculaire à la direction de traction (17) de la gaine filtrante (4).
  6. Elément de drainage selon une des revendications 1 à 4, caractérisé en ce que l'angle d'entrée (α) de la gorge annulaire (14) est supérieur à 90°.
  7. Elément de drainage selon une des revendications 1 à 6, caractérisé en ce que la monture (6) est pourvue, du côté de l'espace de pressage, d'un collet appuyé sur un épaulement et possède, à la suite de ce collet, une forme conique se raccordant à une partie cylindrique élargie.
  8. Elément de drainage selon la revendication 7, caractérisé en ce que l'épaulement est formé par le bord d'une ouverture de passage (7) de la paroi de cuve (5) délimitant l'espace de pressage (1).
  9. Elément de drainage selon une des revendications 1 à 8, caractérisé en ce que le manchon (11) possède une partie conique applicable contre la forme conique de la monture (6).
  10. Elément de drainage selon la revendication 9, caractérisé en ce que le manchon (11) est cylindrique des deux côtés de la partie conique.
  11. Elément de drainage selon une des revendications 1 à 10, caractérisé en ce que le manchon (11) est retenu axialement par une goupille (10) disposée amovible à une extrémité du noyau (3) et traversant des perçages du noyau (3) et de la monture (6).
  12. Elément de drainage selon la revendication 11, caractérisé en ce qu'une rondelle terminale (16) est placée entre le manchon (11) et la goupille (10).
  13. Elément de drainage selon une des revendications 1 à 12, caractérisé en ce que la bague de maintien ou le joint torique (13) constitue un élément d'étanchéité empêchant le passage des matières solides.
  14. Procédé pour fabriquer un élément de drainage selon une des revendications 1 à 13, caractérisé en ce que, après sa mise en place dans l'ouverture de passage (7), on élargit la monture (6) par étirage au moyen d'un mandrin conique avancé en direction contraire à l'introduction de la monture dans cette ouverture, de sorte que la monture (6) est reliée de façon fixe à la paroi formant l'épaulement.
EP90115864A 1989-08-22 1990-08-18 Element de drainage pour presses Expired - Lifetime EP0414172B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90115864T ATE94807T1 (de) 1989-08-22 1990-08-18 Drainageelement fuer pressen.

Applications Claiming Priority (2)

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

Publications (3)

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

Family

ID=4247293

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90115864A Expired - Lifetime EP0414172B1 (fr) 1989-08-22 1990-08-18 Element de drainage pour presses

Country Status (11)

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

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH684068A5 (de) * 1991-10-02 1994-07-15 Bucher Guyer Ag Masch Drainageelement für Pressen.
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
CH687686A5 (de) * 1993-12-23 1997-01-31 Bucher Guyer Ag Masch Drainageelement fuer Pressen zum Ausscheiden von Fluessigkeiten aus festen Stoffen.
CH689382A5 (de) * 1994-05-19 1999-03-31 Bucher Guyer Ag Masch Filterhuelle fuer ein Drainageelement fuer Pressen zum Ausscheiden von Flüssigkeiten aus festen Stoffen.
CH688710A5 (de) * 1995-01-16 1998-01-30 Bucher Guyer Ag Masch Filterhülle für ein Drainageelement für Pressen zum Ausscheiden von Flüssigkeiten aus festen Stoffen.
CH691359A5 (de) * 1995-10-12 2001-07-13 Bucher Guyer Ag Drainageelement für eine Presse zum Ausscheiden von Flüssigkeiten aus festen Stoffen.
US8110016B2 (en) * 2008-12-11 2012-02-07 Dow Global Technologies Llc Fluid filter assembly including seal
WO2012058038A1 (fr) 2010-10-26 2012-05-03 Dow Global Technologies Llc Module enroulé en spirale comprenant une feuille de membrane qui présente des régions de perméabilités différentes

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1353177A (fr) * 1962-09-21 1964-05-29 Bucher Guyer Ag Masch Presse pour l'extraction de jus de fruits, de raisins ou analogues
CH413599A (de) * 1962-09-21 1966-05-15 Bucher Guyer Ag Masch Presse für die Saftgewinnung aus Obst, Trauben und dergleichen Pressgut
DE2418341A1 (de) * 1974-04-16 1975-11-06 Bucher Guyer Ag Masch Drainagesystem fuer pressen fuer die saftgewinnung aus obst, trauben und dergleichen pressgut
DE3132466A1 (de) * 1981-08-17 1983-02-24 Bucher-Guyer AG Maschinenfabrik, 8166 Niederweningen, Zürich Befestigungsvorrichtung fuer ein drainageelement in einer presse

Also Published As

Publication number Publication date
US5130022A (en) 1992-07-14
YU134290A (sh) 1994-04-05
CA2023175A1 (fr) 1991-02-23
ATE94807T1 (de) 1993-10-15
HU206449B (en) 1992-11-30
CA2023175C (fr) 2000-05-02
SK277751B6 (en) 1994-12-07
CS407390A3 (en) 1992-01-15
HUT59576A (en) 1992-06-29
EP0414172A3 (en) 1991-04-17
CZ278431B6 (en) 1994-01-19
CH679565A5 (fr) 1992-03-13
HU905086D0 (en) 1991-01-28
DE59002821D1 (de) 1993-10-28
DD297113A5 (de) 1992-01-02
YU47560B (sh) 1995-10-03
EP0414172A2 (fr) 1991-02-27

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