EP0197575A1 - Procédé et appareil pour délivrer un liquide visqueux, utilisant un clapet - Google Patents

Procédé et appareil pour délivrer un liquide visqueux, utilisant un clapet Download PDF

Info

Publication number
EP0197575A1
EP0197575A1 EP86200381A EP86200381A EP0197575A1 EP 0197575 A1 EP0197575 A1 EP 0197575A1 EP 86200381 A EP86200381 A EP 86200381A EP 86200381 A EP86200381 A EP 86200381A EP 0197575 A1 EP0197575 A1 EP 0197575A1
Authority
EP
European Patent Office
Prior art keywords
outlet
valve
valve member
liquid
shoulder
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
EP86200381A
Other languages
German (de)
English (en)
Other versions
EP0197575B1 (fr
Inventor
Jan Marcus Van Koeveringe
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.)
Exter Holding BV
Original Assignee
Exter Holding BV
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 Exter Holding BV filed Critical Exter Holding BV
Publication of EP0197575A1 publication Critical patent/EP0197575A1/fr
Application granted granted Critical
Publication of EP0197575B1 publication Critical patent/EP0197575B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B39/00—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers
    • B65B39/001—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers with flow cut-off means, e.g. valves
    • B65B39/004—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers with flow cut-off means, e.g. valves moving linearly

Definitions

  • This invention relates to a method and an apparatus for dispensing a viscous liquid, using a valve comprising a body having an inlet and an outlet and a valve member movable perpendicularly to the plane of said outlet.
  • a desired quantity of liquid is dispensed through an outlet of the valve and, for example, passed into a container.
  • the valve is closed, whereafter the container is carried off and a new container is supplied for receiving a metered quantity of liquid.
  • the valve becomes fouled and starts dripping, thereby causing fouling of the container and the base on which it rests. This requires thorough cleaning of the valve, the container and the base. This need is even greater in those cases in which perishable materials are handled. Consequently, in the methods and apparatuses of the prior art, a considerable amount of additional work and, hence, a considerable amount of additional cost are entailed in maintaining adequate standards of cleanliness and hygiene.
  • the valve member As soon as virtually the entire desired quantity of liquid has passed the outlet the valve member is moved to the outlet at a high velocity, so that the last quantity of liquid is pushed through the outlet, and is suddenly decelerated upon closing the outlet. Accordingly, during this movement, the last quantity of liquid is pushed through the outlet as a compact whole.
  • the valve member is decelerated with a shock or optionally shockwise in a plurality of steps, whereas the liquid continues to advance under the influence of inertia. Indeed, the liquid will be fully released from the valve member. As the desired quantity of of liquid is forced through the outlet as one whole, no liquid will cling to the wall of the outlet.
  • the liquid is pushed onward in the vertical, downward direction.
  • the amount of liquid is released from the decelerated valve member not only on the basis of inertia, but in addition by gravity.
  • the invention further relates to an appwatus for carrying out the methods according to the invention, comprising a valve including a body having an inlet and an outlet and a valve member adapted to close said outlet and movable perpendicularly to the plane of the outlet, the apparatus being characterized in that the valve member includes a shoulder which in the closed condition of the valve is in contact with the valve seat of the outlet.
  • the bottom surface of the valve member is co-planar with the end of the outlet in the closed position of the valve.
  • the transition between the shoulder and the valve member is rounded, and the associated part of the valve seat is similarly rounded.
  • the result of this rounding is that the valve member is centred as it is pushed into the outlet. As it is further pushed through the outlet, the valve member will then come to lie in proper sealing relationship with the inner wall of the outlet. As the valve member moves into the outlet, liquid present between the valve member or the shoulder and the valve seat is pushed back into the valve along the rounded surfaces, so that, in the closed condition of the valve, no liquid can be present between the valve member and the valve seat.
  • the valve member may be made of polytetrafluoroethylene.
  • the valve seat may be made of stainless steel, which can easily be cleaned. Such a combination of polytetrafluoroethylene and stainless steel additionally provides for proper guideance of the valve member in the outlet.
  • valve comprising a body 1 with an inlet 2 and an outlet 3.
  • the outlet can be closed by a valve member 4 having a shoulder 5.
  • Shoulder 5 rests upon a valve seat 6.
  • the valve seat has a rounded edge and terminates in a portion defining the outlet 3.
  • Valve member 4 is coupled at the top to a driving rod 7.
  • the valve member can be fixedly connected to the driving rod, for example, by means of bolt 8 via bores 9, 10 and 11 (see Fig. 2).
  • rod 7 is mounted for axial movement by means of a bearing 12 provided with seals 16 and 17.
  • the axial movement of the driving rod can be effected with a pneumatic driving system 13 arranged above the valve.
  • driving rod 7 is connected to two cylinders 14 and 15, arranged in series, and together providing for a stepped length of stroke of driving rod 7.
  • the driving system is shut off from its surroundings by a cover 18.
  • valve member 4 When liquid has to be dispensed, for example, a container should be filled, valve member 4 will be raised under the influence of cylinders 14 and 15 and driving rod 7. Liquid can then enter valve 1 through inlet 2 and leave it through outlet 3. When the desired quantity to be withdrawn has almost been reached, valve member 4 is moved downwards at a high velocity by means of cylinders 14 and 15 and driving rod 7. During this movement, the last amount of liquid will be pushed by the valve member through the outlet 3 as a lump. At the moment when all liquid has been pushed through the outlet, and the bottom surface of valve 4 is co-planar with the outlet end, shoulder 5 strikes seat 6 with some force.
  • valve member is instantaneously stopped, while the contact between the liquid and the valve member is broken as a result of the inertia of the liquid.
  • valve member 4 As the valve member enters the outlet, it is centred to some extent by the rounded edges of valve seat 6. Subsequently, valve member 4 will come to lie in contact with the valve seat, and any liquid remaining between valve seat 6 and valve member 4 will be forced back into the valve until shoulder 5 is in contact with valve seat 6 and no liquid is left between valve member 4 and valve seat 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift Valve (AREA)
  • Supply Of Fluid Materials To The Packaging Location (AREA)
  • Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
EP19860200381 1985-03-11 1986-03-10 Procédé et appareil pour délivrer un liquide visqueux, utilisant un clapet Expired EP0197575B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8500680 1985-03-11
NL8500680A NL8500680A (nl) 1985-03-11 1985-03-11 Werkwijze en inrichting voor het met behulp van een afsluiter vullen van een verpakking met een viskeuze vloeistof.

Publications (2)

Publication Number Publication Date
EP0197575A1 true EP0197575A1 (fr) 1986-10-15
EP0197575B1 EP0197575B1 (fr) 1989-01-04

Family

ID=19845656

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19860200381 Expired EP0197575B1 (fr) 1985-03-11 1986-03-10 Procédé et appareil pour délivrer un liquide visqueux, utilisant un clapet

Country Status (4)

Country Link
EP (1) EP0197575B1 (fr)
JP (1) JPS61274173A (fr)
DE (1) DE3661609D1 (fr)
NL (1) NL8500680A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0560450A1 (fr) * 1992-03-12 1993-09-15 Shikoku Kakoki Co., Ltd. Ajustage pour le remplissage de liquide en quantités déterminées
FR2755664A1 (fr) * 1996-11-11 1998-05-15 Unilever Nv Dispositif et procede de dosage
EP0850838A1 (fr) * 1996-12-23 1998-07-01 RONCHI MARIO S.r.l. Valve avec obturateur commandé pour la distribution dosée de liquides dans les machines automatiques de remplissage de conteneurs ou similaires
GB2328004A (en) * 1997-07-11 1999-02-10 Smc Kk Drip control valve

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE352091C (de) * 1916-07-20 1922-04-24 Borden Co Maschine zum Messen und Abfuellen von Fluessigkeiten
DE2819245A1 (de) * 1978-05-02 1979-11-15 Hick & Co Gmbh Dosiereinrichtung fuer abfuellanlagen

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE352091C (de) * 1916-07-20 1922-04-24 Borden Co Maschine zum Messen und Abfuellen von Fluessigkeiten
DE2819245A1 (de) * 1978-05-02 1979-11-15 Hick & Co Gmbh Dosiereinrichtung fuer abfuellanlagen

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0560450A1 (fr) * 1992-03-12 1993-09-15 Shikoku Kakoki Co., Ltd. Ajustage pour le remplissage de liquide en quantités déterminées
FR2755664A1 (fr) * 1996-11-11 1998-05-15 Unilever Nv Dispositif et procede de dosage
US6041980A (en) * 1996-11-11 2000-03-28 Lipton, Division Of Conopco, Inc. Dosing apparatus and method
EP0850838A1 (fr) * 1996-12-23 1998-07-01 RONCHI MARIO S.r.l. Valve avec obturateur commandé pour la distribution dosée de liquides dans les machines automatiques de remplissage de conteneurs ou similaires
US5954086A (en) * 1996-12-23 1999-09-21 Ronchi Mario S.R.L. Valve with controlled-action obturator for the metered delivery of fluids in automatic machines for filling containers and the like
GB2328004A (en) * 1997-07-11 1999-02-10 Smc Kk Drip control valve
GB2328004B (en) * 1997-07-11 1999-06-16 Smc Kk Opening and closing valve
US6092782A (en) * 1997-07-11 2000-07-25 Smc Kabushiki Kaisha Opening and closing valve

Also Published As

Publication number Publication date
JPS61274173A (ja) 1986-12-04
EP0197575B1 (fr) 1989-01-04
NL8500680A (nl) 1986-10-01
DE3661609D1 (en) 1989-02-09

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