EP0920918A2 - Dispositif d'application et de dosage de fluides - Google Patents

Dispositif d'application et de dosage de fluides Download PDF

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Publication number
EP0920918A2
EP0920918A2 EP98118853A EP98118853A EP0920918A2 EP 0920918 A2 EP0920918 A2 EP 0920918A2 EP 98118853 A EP98118853 A EP 98118853A EP 98118853 A EP98118853 A EP 98118853A EP 0920918 A2 EP0920918 A2 EP 0920918A2
Authority
EP
European Patent Office
Prior art keywords
fluid
piston
housing
application
outlet opening
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Withdrawn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
EP98118853A
Other languages
German (de)
English (en)
Other versions
EP0920918A3 (fr
Inventor
Rolf Schiefer
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0920918A2 publication Critical patent/EP0920918A2/fr
Publication of EP0920918A3 publication Critical patent/EP0920918A3/fr
Withdrawn legal-status Critical Current

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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
    • B05B1/3006—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 controlling element being actuated by the pressure of the fluid to be sprayed

Definitions

  • the invention relates to an application or metering device for fluids with at least one outlet opening for the Fluid in a housing, in the housing interior of which Fluid can be supplied is provided.
  • Such devices are used, for example, for application used by liquid glue.
  • Prior art valves are used that are commonly used pneumatically operated actuator that with a device for metering the fluid flow in operative connection stands. If a fluid flow is desired according to the prior art e.g. a solenoid valve is actuated, the outlet opening via a pneumatic cylinder releases. The fluid is according to the state of the art known solution - regardless of the position of the outlet valve - With a substantially constant pressure on the Outlet opening.
  • the known application or dosing devices are due the required electro-pneumatic equipment to release the order opening complex and therefore cost-intensive in manufacturing and maintenance. Especially in continuous operation (e.g. with an automated application of smaller ones Fluid drops), is caused by the frequent pneumatic Operations an additional noise pollution and it occurs not inconsiderable energy consumption.
  • the invention is based on the object of an order or Dosing device of the type mentioned above improve that this is easier and cheaper to manufacture and is low-maintenance and energy-saving to operate.
  • a movable piston device is provided, on the one piston side of the Fluid pressure and a biasing device on the other side of the piston acts with the closing force, and that the Piston device is connected to a needle such that when the piston device moves in the direction of action of the fluid pressure force on the piston the needle from the outlet lifted off and when the piston device moves in the opposite direction the outlet is closed by the needle becomes.
  • the biasing device has a spring.
  • a compressed air preload is also provided be.
  • the housing has a housing recess has to which the fluid is supplied, and that the Piston device and the outlet opening in on opposite Sides of the housing recess adjoining this Recesses are arranged.
  • An advantage of the invention is that the structure of the Application and dossier device is considerably simplified. Furthermore, the device according to the invention is almost maintenance-free.
  • Another advantage of the invention is that none Compressed air source is more needed, resulting in energy savings and leads to noise reduction.
  • Another advantage of the invention is that on solenoid valves and the like. Can be dispensed with, whereby the inventive Device also in potentially explosive areas can be used without complex protective measures.
  • 1 has the application or metering device Housing 10 with a circular housing recess 12.
  • Fluid e.g. glue
  • the fluid leaves the application or metering device an outlet orifice 14 provided by a piston device closable with a nozzle needle 16 and a piston 18 is trained.
  • the piston 18 is in a lateral Recess 20 of the housing 10 is movable and opposite sealed the walls of the recess.
  • Biasing force exerted On the outside of the Piston 18 is a by means of a spring, not shown Biasing force exerted such that the outlet opening 14 is closed when the fluid pressure P1 is less than that pressure P2 exerted by the prestressing force.
  • Will the Fluid pressure through a delivery device (not shown) increases and exceeds the preload pressure p2, then the outlet opening 14 is opened and the fluid exits.
  • Bias pressure P2 held so that the outlet opening for the desired period of time remains open.

Landscapes

  • Coating Apparatus (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
EP98118853A 1997-12-05 1998-10-06 Dispositif d'application et de dosage de fluides Withdrawn EP0920918A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29721398U DE29721398U1 (de) 1997-12-05 1997-12-05 Auftrags- bzw. Dosiervorrichtung für Fluide
DE29721398U 1997-12-05

Publications (2)

Publication Number Publication Date
EP0920918A2 true EP0920918A2 (fr) 1999-06-09
EP0920918A3 EP0920918A3 (fr) 2000-11-29

Family

ID=8049450

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98118853A Withdrawn EP0920918A3 (fr) 1997-12-05 1998-10-06 Dispositif d'application et de dosage de fluides

Country Status (2)

Country Link
EP (1) EP0920918A3 (fr)
DE (1) DE29721398U1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1879012A (en) * 1930-01-20 1932-09-27 American Moistening Co Atomizing nozzle
US3081947A (en) * 1959-06-26 1963-03-19 Continental Can Co Pressure operated spray gun
US3913804A (en) * 1974-07-19 1975-10-21 Robert H Laauwe Aerosol valve actuator
DE9208796U1 (de) * 1992-07-01 1992-10-08 Suttner GmbH & Co KG, 4800 Bielefeld Strahldüse für Hochdruckreinigungsgeräte

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Also Published As

Publication number Publication date
DE29721398U1 (de) 1998-02-26
EP0920918A3 (fr) 2000-11-29

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