EP4200081A1 - Tige de poussoir de soupape - Google Patents

Tige de poussoir de soupape

Info

Publication number
EP4200081A1
EP4200081A1 EP21762650.6A EP21762650A EP4200081A1 EP 4200081 A1 EP4200081 A1 EP 4200081A1 EP 21762650 A EP21762650 A EP 21762650A EP 4200081 A1 EP4200081 A1 EP 4200081A1
Authority
EP
European Patent Office
Prior art keywords
valve
particularly preferably
guide sleeve
section
push rod
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.)
Pending
Application number
EP21762650.6A
Other languages
German (de)
English (en)
Inventor
Mario Fließ
Stefan GRUMBEIN
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.)
Vermes Microdispensing GmbH
Original Assignee
Vermes Microdispensing GmbH
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 Vermes Microdispensing GmbH filed Critical Vermes Microdispensing GmbH
Publication of EP4200081A1 publication Critical patent/EP4200081A1/fr
Pending legal-status Critical Current

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
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/0225—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work characterised by flow controlling means, e.g. valves, located proximate the outlet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/3033—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head
    • B05B1/304—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve
    • B05B1/3046—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve the valve element, e.g. a needle, co-operating with a valve seat located downstream of the valve element and its actuating means, generally in the proximity of the outlet orifice

Definitions

  • the valve push rod is z. B. mounted in a valve having a valve body with a valve chamber with two ports. It runs through an opening in the head of the valve chamber and protrudes (at a distance of a planned stroke length) to the opposite one Nozzle opening of the valve chamber, so that it is closed in the disengaged closed position of the ram at full deflection (ie maximum stroke length) of the ram.
  • the opening of the valve chamber on the side of the tappet head there is the fluidic section of the tappet with the annular sealing element pushed on or slipped over, so that this opening is permanently and tightly closed.
  • the valve can be run in what is known as open operation, in which the tappet tip is not moved into the valve seat between two strokes, i.e. the valve is not closed. This is possible with more viscous media. Dosing substance is then ejected only by the forward movement of the valve push rod when it is moved towards the valve seat (so-called "jetting"), and not by the pressure of the dosing substance in the valve chamber. With thinner media, operation is of course also possible in which the valve is always closed between two dosing processes, e.g. B. by means of the above-mentioned restoring element. The valve can also be closed, e.g. B. if you don’t want to dose for a long time.
  • the shoulder can be formed with a fillet that has a fillet radius of at least 0.01 mm, more preferably at least 0.1 mm, most preferably at least 0.25 mm, and / or a fillet radius of preferably at most 2 mm, especially preferably at most 1 mm and very particularly preferably at most 0.5 mm.
  • a part of the second guide sleeve section (at least partially in the disengaged state of the valve push rod) and/or a part of the fluidic section of the tappet always remains in the threaded area of the guide sleeve, even during the intended ejection movement or retraction movement of the tappet.
  • the hollow cylinder area or the antechamber of the guide sleeve can preferably be designed with at least one drainage hole in its lateral surface, so that a dosing substance - possibly escaping from the valve chamber through the seal into the antechamber can be discharged via the drainage hole before it can be pressed or pushed into a space between the plunger and the guide sleeve due to the pressure from the metered substance that is trailing behind (when the antechamber is completely filled).
  • the dosing substance can preferably be discharged from the drainage hole into a specially designed collection area, e.g. B.
  • a length of the tappet tip section for an associated nozzle or for a nozzle insert as a nozzle of the valve can preferably vary depending on the radius of the tappet tip. The radius can in turn depend on the desired application and the dosing substance.
  • the length of the tappet tip section for the associated nozzle can preferably be at most 5 mm, particularly preferably at most 7.5 mm, very particularly preferably at most 10 mm.
  • Figure 2 is a perspective three-quarter sectional view of a second variant of the first embodiment of a valve push rod according to the invention in the embodiment of a valve according to Figure 1, with a flat membrane seal
  • Figure 3 is a perspective three-quarter sectional view of a second embodiment of a valve push rod according to the invention in a second embodiment of a valve according to the invention of a metering system shown in part, with a meandering membrane seal as in Figure 1,
  • FIG. 6 shows an overall overview in which the entire structure of a dosing system, as is known from DE 10 2017 122 034 A1, is shown as a roughly schematic example in a slightly modified form in a partial section.
  • the sealing element 150 is a sliding seal, which is arranged around the ram 1, 1′′ and slides with it when the ram 1, 1′′ moves at a radially inner sealing point.
  • a valve 100, 100′′ and part of the actuator unit 220 of the dosing system 200 required for actuation are shown schematically in section.
  • the actuator unit 220 can therefore only be seen roughly schematically and the details of the valve 100, 100′′ are not shown in the overview due to the reduced representation.
  • nozzle insert 111 (the actual nozzle 111) which is clamped against the valve chamber 104 when the nozzle adjustment nut 110 is screwed in.
  • the nozzle insert 111 is also formed with an opening or nozzle opening 111a.
  • the nozzle insert 111 has a conical or funnel-shaped inner shape on its upper side (as a valve seat 111d or sealing seat 111d for the tappet 1) on the inside in order to channel the dosing substance, accelerate the ejection speed and increase the ejection quantity (depending on the nozzle insert used 111) to regulate. Accordingly, finer structures or shapes of the dosing substance can also be dosed with the dosing system 200 on a workpiece.
  • the ram 1 has a ram head 10 in an upper head area A and a ram tip 60 at the opposite lower end B—a distance from it in the longitudinal direction along the longitudinal axis LA. Between the ram head 10 and the ram tip 60 of the ram 1 are the sections 20, 30, 40, 50, 55, which are each formed with a preferred length 20I, 30I, 40I, 50I, 55I. Overall, the ram 1 thus has an overall length 11 which corresponds to the sum of the lengths 101, 201, 301, 401, 501, 551. The length of the plunger tip 60 is negligible here.
  • a sharp, relatively abrupt shoulder 25 is formed towards the tapered section 30, the outer diameter of which is 30d again is smaller than the outer diameter of the first guide sleeve section 20.
  • This shoulder 25 is short and “steep” relative to a transition 35 to the second guide sleeve section 40 at the lower end of the tapering section 30.
  • This transition 35 can therefore be described more as a “flat ramp” or incline, which is relatively long and has an almost imperceptible incline.
  • the radius 60r can vary within the scope of the invention from a particularly small radius, i.e. almost “pointy”, to a rather large radius 60r, i.e. it can also be larger than a diameter 30d, 50d of the valve push rod 1 .
  • tappet 1 is suitable e.g. B. perfect for use in a valve 100 "of a dosing system 200, as shown in Figure 3.
  • the two guide sleeve parts 105a", 105b", 105c", 105d" can preferably be connected to one another in a pressing, gluing or other joining process.

Landscapes

  • Lift Valve (AREA)
  • Coating Apparatus (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Abstract

L'invention concerne une tige de poussoir de soupape (1, 1'') pour une soupape (100, 100'') d'un système de dosage (200) pour une substance à doser, la tige de poussoir de soupape (1, 1'') présentant un corps oblong sensiblement cylindrique, qui est réalisé avec une pointe de tige (60) à une extrémité frontale (B), avec une tête de poussoir (10) au niveau d'une zone de tête (A) opposée et au moins avec au moins une première partie à manchon de guidage, une partie de rétrécissement (30), une seconde partie à manchon de guidage (40) et une partie fluidique (50), entre la tête de poussoir (10) et la pointe de poussoir (60), un diamètre extérieur (30d, d'') de la partie de rétrécissement (30) étant réduit par rapport aux diamètres extérieurs (20d, 20d'', 40d, 40d'') des parties à manchon de guidage (20, 40). L'invention concerne en outre une soupape (100, 100'') dotée d'une telle tige de poussoir de soupape (1, 1'') et un système de dosage (200) muni d'une telle soupape (100, 100'') ou d'une telle tige de poussoir de soupape (1, 1'').
EP21762650.6A 2020-08-19 2021-08-10 Tige de poussoir de soupape Pending EP4200081A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020121777.3A DE102020121777A1 (de) 2020-08-19 2020-08-19 Ventilstößelstange
PCT/EP2021/072314 WO2022038001A1 (fr) 2020-08-19 2021-08-10 Tige de poussoir de soupape

Publications (1)

Publication Number Publication Date
EP4200081A1 true EP4200081A1 (fr) 2023-06-28

Family

ID=77543486

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21762650.6A Pending EP4200081A1 (fr) 2020-08-19 2021-08-10 Tige de poussoir de soupape

Country Status (7)

Country Link
US (1) US12311392B2 (fr)
EP (1) EP4200081A1 (fr)
JP (1) JP7813772B2 (fr)
KR (1) KR20230051289A (fr)
CN (1) CN116018212B (fr)
DE (1) DE102020121777A1 (fr)
WO (1) WO2022038001A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020126476A1 (de) * 2020-10-09 2022-04-14 J. Wagner Gmbh Farbdüsenbaugruppe für ein Farbspritzgerät
DE102021114302A1 (de) 2021-06-02 2022-12-08 Vermes Microdispensing GmbH Dosiersystem
WO2024097193A2 (fr) * 2022-11-01 2024-05-10 Nordson Corporation Joint adhésif souple pour applications de projection

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4126272A (en) 1976-02-20 1978-11-21 Geberth John Daniel Jun Adjustable spray tip
US4066188A (en) * 1976-08-10 1978-01-03 Nordson Corporation Thermoplastic adhesive dispenser having an internal heat exchanger
US4678100A (en) * 1985-06-17 1987-07-07 Loctite Corporation Variable flow rate dispensing valve assembly
US4907741A (en) * 1987-04-09 1990-03-13 Acumeter Laboratories, Inc. Poppet-valve-controlled fluid nozzle applicator
US5074443A (en) * 1989-12-20 1991-12-24 Nordson Corporation Adaptor for liquid dispensing syringe
US5181636A (en) 1990-12-14 1993-01-26 Milbar Corporation Incremental dispensing device
US5747102A (en) 1995-11-16 1998-05-05 Nordson Corporation Method and apparatus for dispensing small amounts of liquid material
US5788128A (en) * 1997-06-30 1998-08-04 Hickey; Patrick J. High viscosity low pressure non-contact glue-dispenser
DE10133166A1 (de) 2001-07-07 2003-01-16 Bosch Gmbh Robert Kraftstoffeinspritzventil für Brennkraftmaschinen
DE10226649A1 (de) 2002-06-14 2004-01-08 Siemens Ag Dosiervorrichtung für Fluide, insbesondere Kraftfahrzeug-Einspritzventil
US7455882B2 (en) * 2004-09-13 2008-11-25 The Gillette Company Method of applying adhesive to electrochemical cell components
US7182229B2 (en) * 2004-12-22 2007-02-27 Nordson Corporation Device for dispensing liquid having an improved seal assembly
DE102006024728A1 (de) * 2006-05-26 2007-11-29 Pierburg Gmbh Kraftfahrzeugventil
DE102008041165A1 (de) 2008-08-11 2010-02-18 Robert Bosch Gmbh Einspritzventilglied
DE102011108799A1 (de) * 2011-07-29 2013-01-31 Vermes Microdispensing GmbH Dosiersystem und Dosierverfahren
US9126223B2 (en) * 2013-10-31 2015-09-08 Nordson Corporation Dispensing module and method for dispensing an adhesive
DE202014103488U1 (de) * 2014-06-18 2014-08-25 Vermes Microdispensing GmbH Dosierventil mit Ventilstößel
EP3009660B1 (fr) * 2014-10-14 2017-05-03 Continental Automotive GmbH Ensemble de soupape pourvu d'un élément de guidage et injecteur de fluide
US9415415B1 (en) * 2015-03-06 2016-08-16 Nordson Corporation Liquid dividing module for variable output dispensing applicator and associated methods
FR3051229B1 (fr) 2016-05-13 2021-02-19 Delphi Int Operations Luxembourg Sarl Injecteur de carburant pour moteur a combustion interne
DE102017207845A1 (de) * 2017-05-10 2018-11-15 Robert Bosch Gmbh Ventil zum Zumessen eines Fluids
DE102017122034A1 (de) 2017-09-22 2019-03-28 Vermes Microdispensing GmbH Dosiersystem mit Aktoreinheit und lösbar koppelbarer Fluidikeinheit

Also Published As

Publication number Publication date
JP2023539441A (ja) 2023-09-14
DE102020121777A1 (de) 2022-02-24
US20230285996A1 (en) 2023-09-14
WO2022038001A1 (fr) 2022-02-24
CN116018212B (zh) 2026-02-17
US12311392B2 (en) 2025-05-27
KR20230051289A (ko) 2023-04-17
JP7813772B2 (ja) 2026-02-13
CN116018212A (zh) 2023-04-25

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