EP1293336A1 - Sicherheitsvorrichtung für pneumatische Membranpresse - Google Patents

Sicherheitsvorrichtung für pneumatische Membranpresse Download PDF

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Publication number
EP1293336A1
EP1293336A1 EP02360247A EP02360247A EP1293336A1 EP 1293336 A1 EP1293336 A1 EP 1293336A1 EP 02360247 A EP02360247 A EP 02360247A EP 02360247 A EP02360247 A EP 02360247A EP 1293336 A1 EP1293336 A1 EP 1293336A1
Authority
EP
European Patent Office
Prior art keywords
opening
safety device
press
passage
door
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.)
Withdrawn
Application number
EP02360247A
Other languages
English (en)
French (fr)
Inventor
Jacques Fouillet
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.)
Vaslin Bucher SA
Original Assignee
Vaslin Bucher SA
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 Vaslin Bucher SA filed Critical Vaslin Bucher SA
Publication of EP1293336A1 publication Critical patent/EP1293336A1/de
Withdrawn legal-status Critical Current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
    • B30B9/22—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using a flexible member, e.g. diaphragm, urged by fluid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/28—Arrangements for preventing distortion of, or damage to, presses or parts thereof

Definitions

  • the present invention relates to the safety of people and capital goods, more specifically in the wine sector, and relates to a safety device for a membrane press.
  • the materials are pressed under the action of a membrane fixed in the press tank and which on the side opposite to that applying to said matters is subject to the action of a pneumatic pressure by swelling the volume which it delimits with the corresponding part of the wall of the tank.
  • the press tank has the side in contact with the materials to press an opening that can be closed by a door, especially during the pressing phases.
  • the present invention aims to provide a solution to the problem mentioned above, said solution having to be of simple and robust construction and be able to be easily installed on existing presses, on their sites operating.
  • the present invention relates to a device for safety for pneumatic membrane press.
  • Figures 1, 3 and 4 show a safety device 1 for pneumatic diaphragm presses which are provided with at least one opening for introduction of materials to be pressed and / or evacuation of solid residue from pressing, closed by a door 2 ', said device 1 does not having to authorize or maintain a pressurization of said press only the closed state of said at least one door 2 '.
  • said device 1 comprises essentially at least one unit 3 for establishing a leak, optionally each assigned to an opening / door cooperating assembly, each unit 3 being constituted, on the one hand, by an actuator module 4 comprising an opening 5 for receiving a key 6 or a coin specific analog mounted on the door 2 'considered and a member 7 whose state or position depends on the presence or not of the key 6 in said opening 5 and, on the other hand, by a valve module 8 comprising a closure member 9 of a circulation passage 10 between an opening 11 in fluid connection with one or more inflation volume (s) 12 pressurized when pressurizing the press and a opening 13 opening into the open air, the actuating member 7 authorizing the closing of said passage 10 by the shutter member 9 when the key 6 is present, or fully engaged, in the reception opening 5 and requiring the release of said passage 10 when the key 6 is not present in said opening 5, or insufficiently engaged in the latter.
  • an actuator module 4 comprising an opening 5 for receiving a key 6 or a coin specific analog mounted on the door
  • the key 6 and the reception opening 5, as well as possibly the receiving housing which extends it into the actuator module 4, may have sections of specific concordant shapes, the key 6 can also optionally have one or more mark (s) or index to check its degree of introduction into the opening 5.
  • the door (s) 2 'of the press can be of a type any, namely, swivel (s), sliding (s), swivel-sliding or other, the only condition to check for the installation of the device (s) security 1 being that only a complete and correct closure of these or this door (s) 2 'must correspond to a presence or a commitment given from the key 6 in the reception opening 5 authorizing the closing of the passage 10.
  • the shutter member 9 is biased in the position of closing of the passage 10 under the action of an elastic member 14 and is moved outside of said closed position under the action of the organ actuation 7.
  • the shutter member 9 can be provided under different embodiments such as mushroom, plate, disc, truncated cone or other, associated with an adapted complementary seat dimensionally.
  • the shutter member 9 is in the form a ball elastically urged by a compression spring 14 against a seat 15 formed by an annular recess formed in a portion central 10 'of the circulation passage 10, forming in cooperation a valve non-return in the direction of the opening 13 opening into the open air
  • the member actuator 7 consists of a movable pin or lug, which can be moved in circulation passage 10 between a retracted position in which it is not in contact with or does not press on said ball 7 and a deployed position in which it engages said ball 7 to take it off said seat 15.
  • the operational link between the key 6 and the actuating member 7 of the actuator module 4 is mechanical nature.
  • the actuation module could, for example, consist of a actuator of the type known under the designation 3SE31200XB-Z-C by the SIEMENS company.
  • valve module 8 is formed of two partially hollowed 8 'and 8 "blocks each containing a part of circulation passage 10 and one of the two through openings 11 and 13 of the latter, and forming by assembly a central portion 10 ' of said passage 10 comprising a seat 15 adapted for adjusted reception of the shutter member 7 and a support or a bearing surface 16 for the elastic member 14 for biasing.
  • the inflation volume 12, for each safety device 1 corresponds to the interior volume 2 "delimited jointly by the membrane and part of the wall 17 of the tank 2 of the press and not receiving the materials to be pressed, unit 3 being possibly mounted directly on said tank 2.
  • the inflation volume 12 corresponds to the volume delimited by an inflatable seal mounted on the door 2 'intended to close the presser introduction and evacuation opening.
  • the device 1 will control so the pressurization of the tank 2 (swelling of the membrane), then that in the second variant it will control the pressurization of the seal of door 2 ', by controlled release and closure of a passage 10 exhaust and trigger, the latter can of course also be connected to the pneumatic supply circuits of said seal or said tank 2.
  • said device security 1 could also include, if necessary, a module obturation tire 18 controlled by the pressure applied during the pressurization of the tank 2 and / or the inflatable seal of the door 2 'of the press and whose state is controlled by unit 3, this module 18 being mounted at level of an opening or of an exhaust passage 19 in direct connection with the volume (s) of the seal and / or of the tank 2 put under pressure, or of the pneumatic supply circuit ensuring the pressurization (s) of this (these) volume (s).
  • a module obturation tire 18 controlled by the pressure applied during the pressurization of the tank 2 and / or the inflatable seal of the door 2 'of the press and whose state is controlled by unit 3, this module 18 being mounted at level of an opening or of an exhaust passage 19 in direct connection with the volume (s) of the seal and / or of the tank 2 put under pressure, or of the pneumatic supply circuit ensuring the pressurization (s) of this (these) volume (s).
  • the module 18 mainly comprises a moving part 20 displaced, under the action of pressure establishing itself in a volume of inflation 12 when the seal and / or tank 2 are pressurized, in a shutter position in which it seals the exhaust opening or passage 19, against a force of recall constantly soliciting her in a liberation position.
  • the moving part 20 can be in different forms depending on the site to be closed, such as for example a drawer or a diaphragm for closing a passage, a plug having a shape complementary to that of the opening, a plate closing off on the surface opening or the like, possibly sealing means present which can be carried by said moving part or be mounted level of passage or opening.
  • the part mobile 20 is moved in or against the exhaust opening 19 to lead to the sealing of the latter, under the effect of a force of thrust at least slightly greater than the pushing force out or away from the opening 19 generated by the pressure prevailing in the gasket door 2 ', the tank 2 or their respective pneumatic supply circuit, this difference in intensities between pushing and pushing forces resulting for example of a difference in pressure application surfaces of pressurization of the door seal 2 'and / or of the tank 2.
  • said module 18 constitutes a functioning system amplifying tire, in terms of dimensions and applied forces, the action produced by the unit 3 for the controlled establishment of a leak.
  • the restoring force may include, in addition to the pneumatic component above, also an elastic or spring component, obtained by cooperation of the moving part 20 with a biasing member 21 and, if applicable, corresponding support.
  • the module obturation tire 18 essentially consists, on the one hand, of a flexible and waterproof membrane 21 carrying a movable part 20 located at manhole and near an exhaust opening or orifice 19 made in a part of the wall 17 of the tank 2 defining with the membrane the interior volume 2 "receiving the air flow for pressurizing said press, and capable of sealingly sealing this orifice 19 under the action a suitable pressure force, on the other hand, by a support plate 22 carrying said membrane 21 and comprising a recessed or shaped part dome 22 'defining, with said membrane 21 and on the side opposite to that carrying the part 20, the inflation volume 12, the latter being placed under pressure when the press is pressurized via a connection 23 fitted with a non-return valve 24 and tightly attached on the part of the wall 17 of the tank 2 provided with the opening exhaust 19, said connection 23 also being in fluid relation parallel with the opening 11 of the valve module 8.
  • Said support plate 22 will in particular comprise a ring or a supporting frame 22 "on which the membrane 21 is mounted on level of its edges.
  • the support plate 22, carrying and covering the membrane 21 is mounted on the outer face of the wall portion 17 of the tank 2 by means of a plurality of fasteners and bracing 25 mutually spaced, defining between them passages of communication with the air free.
  • the part 20 consists of a seal, in the form of a plate or disc, secured to the membrane 21 by means of a piece of retaining 26 in the form of a bowl associated with a counterpart 26 'or washer support, assembled together and mounted on either side of said membrane 21.
  • the part 26 forming a seal holder ensures a firm hold of the seal 20 and prevents its premature deformation.
  • the exhaust port 19 is dimensioned in such a way that the exhaust air flow rate through this opening or passage 19 is at least slightly greater than the flow delivered by the air source ensuring the pressurization of the press and the inflation of the interior inflation volume 2 "and / or the setting under pressure of the door seal 2 'and swelling of its interior volume.
  • the module 18 can be fixed on the outside of the wall of the tank 2 by any suitable means (screws, welds, ...) through parts 25.
  • the pin of the actuator module is in position low and the ball obstructs the seat hole (thanks to the return spring), which is related to atmospheric pressure.
  • the pressure is therefore balanced in the tank and in the mechanism drain (connection + passage + inflation volume + connection).
  • the membrane portion of the obturation module is then subjected to a pressure force distributed over its entire surface which is more larger than the surface of the tank exhaust port. The membrane therefore translates towards the tank and obstructs the orifice by means of the seal which it door. Air cannot escape and the tank can build up pressure possible pressing.
  • the door opens or is opened.
  • the key is disengaged from the opening 5 and detaches from the actuator module, which causes the rise (exit) of the nipple which translates the ball downwards taking off from its seat and freeing the central orifice from the latter.
  • the pressure present in the emptying mechanism balances at atmospheric pressure since the seal between the ball and his perforated seat is broken.
  • the tank pressure is then higher than the pressure present in the draining mechanism (atmospheric pressure), which involves pushing back, for example, a downward translation of the membrane portion of the pneumatic shutter module and seal that she wears.
  • the exhaust port is cleared and the air escapes by the hole (dimensioned), then between the spacers, preventing any swelling and any pressure build-up.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Lock And Its Accessories (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
EP02360247A 2001-09-04 2002-08-26 Sicherheitsvorrichtung für pneumatische Membranpresse Withdrawn EP1293336A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0111440 2001-09-04
FR0111440A FR2829060B1 (fr) 2001-09-04 2001-09-04 Dispositif de securite pour pressoir pneumatique a membrane

Publications (1)

Publication Number Publication Date
EP1293336A1 true EP1293336A1 (de) 2003-03-19

Family

ID=8866957

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02360247A Withdrawn EP1293336A1 (de) 2001-09-04 2002-08-26 Sicherheitsvorrichtung für pneumatische Membranpresse

Country Status (6)

Country Link
US (1) US6823778B2 (de)
EP (1) EP1293336A1 (de)
AR (1) AR036488A1 (de)
FR (1) FR2829060B1 (de)
NZ (1) NZ520864A (de)
ZA (1) ZA200206687B (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7715602B2 (en) * 2002-01-18 2010-05-11 Orthosoft Inc. Method and apparatus for reconstructing bone surfaces during surgery

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH313442A (de) * 1952-07-23 1956-04-15 Willmes Josef Vorrichtung zum Auspressen von Flüssigkeit enthaltendem Gut, insbesondere von Früchten, mittels Pressgas
FR2348268A1 (fr) * 1976-04-15 1977-11-10 Bucher Guyer Ag Masch Recipient de fermentation et d'extraction de jus a axe horizontal pouvant etre entraine en rotation autour de son axe
EP0253315A1 (de) * 1986-07-11 1988-01-20 F.H. Schule GmbH Filterpresse
US5575199A (en) * 1995-03-22 1996-11-19 Yamamoto; Soichiro Compactor

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3317235A1 (de) * 1983-05-11 1984-11-15 Rittershaus & Blecher Gmbh, 5600 Wuppertal Membranplatte fuer filterpressen
WO2000035773A1 (en) * 1998-12-16 2000-06-22 Heineken Technical Services B.V. Container with pressure control device for dispensing fluid

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH313442A (de) * 1952-07-23 1956-04-15 Willmes Josef Vorrichtung zum Auspressen von Flüssigkeit enthaltendem Gut, insbesondere von Früchten, mittels Pressgas
FR2348268A1 (fr) * 1976-04-15 1977-11-10 Bucher Guyer Ag Masch Recipient de fermentation et d'extraction de jus a axe horizontal pouvant etre entraine en rotation autour de son axe
EP0253315A1 (de) * 1986-07-11 1988-01-20 F.H. Schule GmbH Filterpresse
US5575199A (en) * 1995-03-22 1996-11-19 Yamamoto; Soichiro Compactor

Also Published As

Publication number Publication date
AR036488A1 (es) 2004-09-15
US6823778B2 (en) 2004-11-30
FR2829060A1 (fr) 2003-03-07
ZA200206687B (en) 2003-04-11
FR2829060B1 (fr) 2004-09-24
NZ520864A (en) 2002-12-20
US20030056664A1 (en) 2003-03-27

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