WO1989003255A1 - Agencement de soupape destine a la decharge d'un milieu a indice de viscosite eleve - Google Patents

Agencement de soupape destine a la decharge d'un milieu a indice de viscosite eleve Download PDF

Info

Publication number
WO1989003255A1
WO1989003255A1 PCT/SE1988/000501 SE8800501W WO8903255A1 WO 1989003255 A1 WO1989003255 A1 WO 1989003255A1 SE 8800501 W SE8800501 W SE 8800501W WO 8903255 A1 WO8903255 A1 WO 8903255A1
Authority
WO
WIPO (PCT)
Prior art keywords
outlet
arrangement
arrangement according
valve
medium
Prior art date
Application number
PCT/SE1988/000501
Other languages
English (en)
Inventor
Klaus Mielke
Ulf Mielke
Vilhelm Ramsey
Original Assignee
Scandot System Ab
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 Scandot System Ab filed Critical Scandot System Ab
Publication of WO1989003255A1 publication Critical patent/WO1989003255A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • B05C11/1002—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
    • B05C11/1034—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves specially designed for conducting intermittent application of small quantities, e.g. drops, of coating material

Definitions

  • the present invention relates to an arrangement for a valve intended for the discharge of a high—viscosity medium, which valve comprises a regulator arrangement for a valve body capable of connection to an outlet.
  • the principal object of the present invention is, first and foremost, to make available an arrangement of the kind indicated above, which by simple means effectively and reliably solves the problem of achieving distinct interruptions.
  • a high— —viscosity medium 3 such as adhesive, plastic, rubber, grease and foodstuffs of a desired kind, etc.
  • the passageway 7 extends internally within an actuator rod 10 attached to the valve body 5 and discharges into a fluid receiving space 11 at one end 10A, and at its other end 10B into the part 5A of the valve body 5 facing towards the outlet 6.
  • Said fluid receiving space 11 is intended to contain pressurized air, gas, liquid or some other fluid 8.
  • the actuator rod 10 which at one end 10A can be attached to a perforated 12 piston 13 forming part of the regulator device 4, which piston is capable of being accommodated in a cylindrical cavity 14 formed inside a cylinder 14A, into which cavity fluid 8 is able to flow from the space 11, is so arranged as to be capable of actuation by two springs 15, 16 which are independent of one another.
  • Said springs 15, 16, which can be in the form of spiral compression springs which can be slid over the rod 10, are appropriately adapted one to the other in such a way that one spring acts upon the rod 10 with a greater force.
  • the spring 15 is so arranged as to act with the greater force F and to cause the valve body 5 to be brought into contact with an enclosing sealing part 17 extending around the outlet 6, when the regulator device function 4 of the valve is not engaged, so that the valve 2 is is thus maintained shut in a closed position I, in which the high— iscosity medium 3 is prevented from being discharged.
  • a force other than the force produced by a spring can, of course, be considered for said purpose.
  • Said stronger spring 15 is so arranged as to act between the valve body 5 and a fixed stop 18, whereas the weaker spring 16 is so arranged as to act between a fixed stop 19 and a moving stop 20 relative to the actuator rod 10, for example a ring 20, which is slid onto the rod 10 in such a way as to come into contact against a seal 21, which is so arranged as to seal between a space 22 situated around the actuator rod 10 and the spring 16 and the fluid receiving space 11, and which is preferably in the form of a sleeve 21A which carries an '0'—ring 21B in a recess 23 in a barrier 24 between said two spaces 11, 22. .
  • the piston 13, which is a .part of and is caused by he regulator device 4 to be displaced in the direction of the arrow 25, and thus with the help of said actuator rod 10 to move the valve body 5 towards an opening position II for the outlet 6 remote from said outlet 6, may be capable of actuation by the effect of a magnet, for example a magnet coil 26 acting with an electromagnetic effect and situated around the piston 13.
  • the passageway 7 may be capable of being closed at its inlet 7A and of preventing the continuing supply of fluid into the outlet 6 upon actuation of said regulator device 4, for example by the arrangement of a compressible sealing body 27, preferably in the form of an *0'—ring, which is accommodated in a sealing seat 28 on the outer end 13A of the piston.
  • a clearance 29 Between the outer boundary surface 13A of the piston and the inner boundary surface 14B of the cylinder is a clearance 29, in which the fluid 8 is able to flow freely from the space 11 towards the cavity 14.
  • valves 2 are appropriately supported by a common housing 30, in which the receiving spaces 11 and 9 for the high—viscosity medium 8 and the pressurized fluid 3 are situated, which spaces 11, 9 can be common to a number of valves 2, although these are still capable of individual actuation.
  • Said valve 2 can, as shown in Fig. 3, be movable relative to a subjacent surface 31, onto which it is wished to discharge the high—viscosity medium 3 in question.
  • valve arrangement 1 By means of said valve arrangement 1 it is now possible to produce distinct interruptions in said medium 3 which it is wished to discharge from the valve 2, due to the formation of a fluid—containing accumulation in the medium 3 in question which it is wished to discharge, for example an air bubble.
  • valve arrangement 1 should have been appreciated on the basis of the foregoing and from the Figures, although the function can be summarized briefly to the effect that, for example, pressurized air 8 is able to flow freely through the passageway 7 in the position I in which the outlet 6 from the valve is closed by the valve body 5, which is caused by the spring 15 to adopt said closed position I, and that the passageway 7 is closed after actuation of the regulator device 4.
  • the piston 13 is displaced for this purpose into its end position, where it comes up against a countei—pressure part 32 after actuation of the magnet 26, so that the seal 27 seals and effectively prevents the further introduction of air, etc., 8 into the passageway 7.
  • Air, etc., 8 which is exhausted through the outlet 7B from the passageway, will form a number of bubbles in the high—viscosity medium 3 which it is wished to discharge via the outlet 6, through said medium 3 similarly being pressurized or affected by a different pressure, so that the possibility is afforded of achieving distinct delivery of a desired quantity of a high—viscosity medium 3 with distinct interruptions 3A at the outlet 6.
  • the last thing to leave the outlet 6 before it is closed in order to interrupt the medium 3 is, in actual fact, said air bubble, etc.

Landscapes

  • Coating Apparatus (AREA)
  • Percussion Or Vibration Massage (AREA)
  • Nozzles (AREA)
  • Lift Valve (AREA)
  • Reciprocating Pumps (AREA)

Abstract

La présente invention se rapporte à un agencement pour une soupape (2) destiné à décharger un milieu à indice de viscosité élevé (3), ladite soupape comprenant une unité de régulation (4) pour un corps de soupape (5) pouvant être relié à un orifice de sortie (6). Un passage d'amenée de fluide (7), qui est séparé de l'espace (9) recevant le milieu, conduit à l'orifice de sortie (6). Des interruptions distinctes peuvent être obtenues dans le milieu (3) distribuées depuis la soupape (2) au moyen de ce passage grâce à la présence dans le milieu (3) d'une accumulation contenant du fluide, constituée par exemple par une bulle d'air.
PCT/SE1988/000501 1987-10-14 1988-09-28 Agencement de soupape destine a la decharge d'un milieu a indice de viscosite eleve WO1989003255A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8703985-5 1987-10-14
SE8703985A SE459478B (sv) 1987-10-14 1987-10-14 Anordning vid ventil avsedd foer utmatning av hoegviskoest medium

Publications (1)

Publication Number Publication Date
WO1989003255A1 true WO1989003255A1 (fr) 1989-04-20

Family

ID=20369873

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1988/000501 WO1989003255A1 (fr) 1987-10-14 1988-09-28 Agencement de soupape destine a la decharge d'un milieu a indice de viscosite eleve

Country Status (5)

Country Link
EP (1) EP0381695A1 (fr)
JP (1) JPH03500505A (fr)
AU (1) AU2551488A (fr)
SE (1) SE459478B (fr)
WO (1) WO1989003255A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002076623A1 (fr) * 2001-03-27 2002-10-03 Musashi Engineering, Inc. Procede de formation de gouttelettes et dispositif de diffusion de gouttelettes a volume constant
EP1623769A1 (fr) * 2004-08-02 2006-02-08 Nordson Corporation Tête d'application

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3046937A (en) * 1959-12-01 1962-07-31 Fibreboard Paper Products Corp Applicator device for ejecting discrete droplets
US4030640A (en) * 1975-11-10 1977-06-21 Indicon Inc. Method and apparatus for dispensing viscous materials
US4156495A (en) * 1974-06-24 1979-05-29 Sandco Limited Method for producing drops or portions of liquid and viscous materials and for producing pellets therefrom
EP0111850A1 (fr) * 1982-12-16 1984-06-27 Nordson Corporation Distributeur de fluide travaillant à pression constante et par intermittence
US4474307A (en) * 1978-12-28 1984-10-02 The Metalife Company Down flow apparatus for dispensing viscous material and method of loading same
EP0224916A1 (fr) * 1985-12-04 1987-06-10 Henning J. Claassen Dispositif d'application intermittente d'adhésifs liquides

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3046937A (en) * 1959-12-01 1962-07-31 Fibreboard Paper Products Corp Applicator device for ejecting discrete droplets
US4156495A (en) * 1974-06-24 1979-05-29 Sandco Limited Method for producing drops or portions of liquid and viscous materials and for producing pellets therefrom
US4030640A (en) * 1975-11-10 1977-06-21 Indicon Inc. Method and apparatus for dispensing viscous materials
US4474307A (en) * 1978-12-28 1984-10-02 The Metalife Company Down flow apparatus for dispensing viscous material and method of loading same
EP0111850A1 (fr) * 1982-12-16 1984-06-27 Nordson Corporation Distributeur de fluide travaillant à pression constante et par intermittence
EP0224916A1 (fr) * 1985-12-04 1987-06-10 Henning J. Claassen Dispositif d'application intermittente d'adhésifs liquides

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002076623A1 (fr) * 2001-03-27 2002-10-03 Musashi Engineering, Inc. Procede de formation de gouttelettes et dispositif de diffusion de gouttelettes a volume constant
US7134617B2 (en) 2001-03-27 2006-11-14 Musashi Engineering, Inc. Droplets forming method and device for discharging constant-volume droplets
EP1623769A1 (fr) * 2004-08-02 2006-02-08 Nordson Corporation Tête d'application

Also Published As

Publication number Publication date
AU2551488A (en) 1989-05-02
JPH03500505A (ja) 1991-02-07
SE8703985L (sv) 1989-04-15
EP0381695A1 (fr) 1990-08-16
SE459478B (sv) 1989-07-10
SE8703985D0 (sv) 1987-10-14

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