EP0491009B1 - Spender für die dosierte ausgabe von flüssigkeiten, insbesondere zur klebverbindung von elementen - Google Patents

Spender für die dosierte ausgabe von flüssigkeiten, insbesondere zur klebverbindung von elementen Download PDF

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Publication number
EP0491009B1
EP0491009B1 EP91901287A EP91901287A EP0491009B1 EP 0491009 B1 EP0491009 B1 EP 0491009B1 EP 91901287 A EP91901287 A EP 91901287A EP 91901287 A EP91901287 A EP 91901287A EP 0491009 B1 EP0491009 B1 EP 0491009B1
Authority
EP
European Patent Office
Prior art keywords
reservoir
applicator
dose feeder
fluid
support
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.)
Expired - Lifetime
Application number
EP91901287A
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English (en)
French (fr)
Other versions
EP0491009A1 (de
Inventor
Léon REICH
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.)
Hormec Technic SA
Original Assignee
Hormec Technic 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 Hormec Technic SA filed Critical Hormec Technic SA
Publication of EP0491009A1 publication Critical patent/EP0491009A1/de
Application granted granted Critical
Publication of EP0491009B1 publication Critical patent/EP0491009B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/002—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces with feed system for supplying material from an external source; Supply controls therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F1/00—Pumps using positively or negatively pressurised fluid medium acting directly on the liquid to be pumped
    • F04F1/06—Pumps using positively or negatively pressurised fluid medium acting directly on the liquid to be pumped the fluid medium acting on the surface of the liquid to be pumped

Definitions

  • a connection has been designed between the reservoir which contains the fluid reserve and the applicator, formed by a flexible hose, which facilitates the execution of manual operations.
  • the present invention aims to achieve an improvement in dispensers of fluid doses, in particular for bonding parts, comprising an adhesive reservoir, an applicator connected to the reservoir by a flexible hose and a generator of pneumatic pulses causing on the free level of the fluid in the reservoir of momentary overpressures intended to eject the doses of fluid by the applicator.
  • the dispenser according to the invention is characterized in that the dispenser comprises, on a support, a receptacle for the applicator, means for holding the reservoir and a stabilizing arrangement, the latter ensuring that the free level remains at an approximately constant height relative to the applicator placed in its receptacle, during the operation of the dispenser.
  • Fig. 1 shows the principle of the device, ie a reservoir 1, the degree of filling of which can vary during the use of the device between three stages designated by A, B and C in FIG. 1.
  • This tank is suspended by a spring, the characteristics of which need not be specified for the moment and which is designated by 2, on a fixed support 3.
  • a flexible pipe 4 Inside the tank 1 penetrates a flexible pipe 4 , the lower end of which is a short distance from the bottom of the tank 1 and, therefore, plunges into the liquid contained in this tank.
  • This flexible pipe 4 ends in an applicator 5 which is hooked to a receptacle 6 secured to the support.
  • the applicator comprises a needle 7 arranged vertically and the tip of which is at a level slightly below the level 8 of the liquid in the reservoir 1.
  • FIGS. 1 and 2 it is shown in the rest position. Periodically, a worker takes it to perform a gluing operation, then places it in the position shown.
  • the letters A, B and C denote three different stages of emptying the tank 1.
  • the spring 2 contracts.
  • the displacement imposed on the reservoir by the spring is adjusted so that the level 8 of the liquid remains constantly at the same height.
  • FIG 1 the action of a pneumatic pulse generator is shown in the form of a tube 9 opening into an upper zone of the tank 1, practically in contact with the fluid.
  • This representation is here only intended to make understand the operation of the system. It can be understood that a pulse generator, causing momentary overpressures in the upper cavity of the reservoir, forces a precalibrated dose of the liquid to pass through the flexible pipe 4 and, consequently, to extract a drop at the end of the 'needle 7.
  • the pneumatic pulse generator can operate according to an equivalent system, although different and have for example a provision avoiding direct contact between the air and the liquid contained in the tank.
  • Figs. 2 and 3 represent an actual execution of the device.
  • the support 3 comprises a base plate 10, a rigid upright 11, fixed vertically on the base plate 10, a sheet metal stiffening wall 12 and a vertical rod 13 on which is fixed a height-adjustable console 14 intended to receive the applicator 5.
  • the attachment element 6 is here constituted by an opening in the console 14 suitable for the introduction of the body of the applicator 5, the needle 7 of which is arranged vertically downwards.
  • Another orifice 16 also formed in the lid of the reservoir, allows pneumatic pulses to be sent into the reservoir 1 through another flexible pipe which is shown at 17 in FIG. 2.
  • the flexible pipe 17 starts from a fitting 18 integral with the base plate 10, fitting which passes through a desiccator 19 communicating itself, by a fitting 20, with a supply pipe 21 which conducts the pneumatic pulses generated to from an electronically controlled device, which is known per se and therefore does not form part of the present invention.
  • the tank 1 is suspended by means of two diametrically opposed tenons 22, with two parallel branches 23 of a frame 24 having a crosspiece at its rear end and carrying two pivot pins 26 which penetrate into the flaps 27 arranged horizontally in the upright 11, in the vicinity of its upper end.
  • the frame 24 is articulated on the upright 11 and supports at the end of its arm, formed by the two parallel branches 23, 23, the entire tank 1.
  • Two springs 28 and 29 armed between different locations of the frame and the base 10 or the upright 11 coordinate their actions to balance the position of the frame 24 according to the degree of filling of the tank 1.
  • the spring 28 is constituted by a bent steel wire while the spring 29 is a coil spring, hooked, on the one hand, to the base of the upright 11 and, on the other hand, to an eccentric 30 which is fixed, by a screw and a spring 31, to one of the branches 23 of the frame 24, behind the upright 11.
  • the eccentric 30 makes it possible to easily adjust the force of the spring 29 and, consequently, to adjust the stroke in height of tank 1 depending on its degree of filling or emptying.
  • the frame 24 also includes a transverse rod 32 extending between the two branches 23 near the location of the reservoir 1.
  • a transverse rod 32 To this transverse rod 32 is hung a vertical rod 33 which enters a locking cylinder 34
  • This locking cylinder which can be of the electromagnetic or pneumatic type for example, can be actuated at will and, when it is in the actuating state, blocks the rod 33.
  • the frame is then rigidly fixed relative to the support 10 , 11 and therefore does not risk, for example in the event of displacement of the device, of causing untimely oscillations of the reservoir 1.
  • This blocking means is particularly useful when the dispenser described is incorporated into an automatic apparatus, for example a device for mounting parts made up of elements which must be assembled and glued. In this case, it is advisable for the dispenser of fluid doses to be placed close to the parts at the time of the operation for dispensing the doses of fluid, but may be removed. during the time that elapses between these operations. Given its low weight and small footprint, the device described can be easily mounted on a vertical slide, a mobile table or a robot.
  • a position sensor 35 on the upright 11. Indeed, since the position of the frame 24 is constantly determined by the degree of filling of the reservoir 1, it takes a limit position when the reservoir is practically empty. The sensor 35 can therefore be placed so as to detect the moment when the frame reaches this limit position and signal, for example, the need to fill the reservoir. This sensor can also transmit, in good time, an order tending to increase the duration of the pneumatic pulses when the tank approaches its complete emptying state.
  • the stabilizing arrangement described above could, in another embodiment, include a detector of the height of the free level with respect to the tank and control means slaved to the indications of the detector and acting so as to periodically supply the tank from a container containing a reserve of fluid.
  • the control means subject to the indications of the detector could comprise, for example, a pump passing fluid from the container to the reservoir, or a clamp compressing a flexible pipe which connects the container to the reservoir.
  • the free level in the tank would be periodically reduced to a fixed height.
  • the device described is suitable for glues of cyanoacrylate types, as well as for the distribution of volatile or aggressive liquids.
  • the dispenser still has the property that the volumes of air introduced into the tank always cause the same overpressure effect, which was not the case with old devices in which the level of the liquid varied during the emptying.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Coating Apparatus (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Catching Or Destruction (AREA)

Claims (10)

  1. Spender für die dosierte Ausgabe von Flüssigkeiten, insbesondere zur Klebverbindung von Elementen, mit einem Flüssigkeitsvorratsbehälter (1), einem Applikator (5), der über einen biegsamen Schlauch (4) mit dem Vorratsbehälter (1) verbunden ist und mit einem Generator zum Erzeugen von pneumatischen Impulsen, welche auf dem freiliegenden Pegel (8) der Flüssigkeit im Vorratsbehälter (1) je einen momentanen Ueberdruck hervorrufen, welcher dazu bestimmt ist, eine dosierte Flüssigkeitsmenge durch den Applikator auszustossen, dadurch gekennzeichnet, dass der Spender auf einer Trageinrichtung (3) eine Halteeinrichtung für den Applikator (5), Haltemittel für den Vorratsbehälter (1) und eine Stabilisiereinrichtung umfasst, wobei die letztere gewährleistet, dass während dem Betrieb des Spenders der freiliegende Flüssigkeitspegel (8) in bezug auf den in der Halteeinrichtung gehaltenen Applikator (5) etwa auf einer konstanten Höhe bleibt.
  2. Spender nach Anspruch 1, dadurch gekennzeichnet, dass die Stabilisiereinrichtung eine elastische Aufhängung umfasst, so dass der Vorratsbehälter (1) in bezug auf die Halteeinrichtung eine in Funktion seines Füllungsgrades variable Höhenstellung einnimmt, wobei der Flüssigkeitspegel (8) im Vorratsbehälter (1) gemessen in bezug auf die Halteeinrichtung während dem Aufbrauchen des Inhaltes des Vorratsbehälters (1) etwa konstant bleibt.
  3. Spender nach Anspruch 2, dadurch gekennzeichnet, dass der Vorratsbehälter (1) über eine Gelenkachse mit einem Ende eines starren Armes (23) verbunden ist, welcher Arm um eine in bezug auf die Trageinrichtung (3) horizontale Achse drehbar ist und dass die elastische Aufhängung ein oder mehrere deformierbare Organe umfasst, die zwischen dem drehbaren Arm (23) und der Trageinrichtung (3) angeordnet sind und deren Deformierung als Funktion des Gewichtes des Vorratsbehälters (1) die genannte variable Stellung festlegen.
  4. Spender für die dosierte Ausgabe von Flüssigkeiten nach Anspruch 3, dadurch gekennzeichnet, dass die elastische Aufhängung eine oder mehrere Federn (28, 29) umfasst.
  5. Spender nach Anspruch 1, dadurch gekennzeichnet, dass die Halteeinrichtung in bezug auf die Trageinrichtung (3) fest ist und dass, wenn der Applikator (5) an seinem Platz ist, der Flüssigkeitspegel (8) im Vorratsbehälter (1) in bezug auf das untere Ende einer Nadel (7) des Applikators (5) leicht nach oben zurückgesetzt ist.
  6. Spender nach Anspruch 1, dadurch gekennzeichnet, dass die Trageinrichtung (3) mit einem Gleitstück verbunden ist und dass der Applikator (5) mit einer Bedienungseinrichtung zusammenwirkt, derart, dass der Spender in ein automatisches System zum Herstellen von Klebverbindungen von Elementen eingeschlossen werden kann, in welchem System der Spender im Moment, wo eine oder mehrere Dosen verteilt werden, in eine Arbeitsposition geführt ist und während dazwischenliegenden Perioden in eine Ruheposition zurückgezogen ist.
  7. Spender nach Anspruch 1, dadurch gekennzeichnet, dass eine Blockiereinrichtung (34) vorhanden ist, welche nach Bedarf betätigbar ist und welche zwischen einem Halteorgan (23) des Vorratsbehälters (1) und der Trageinrichtung (3) angeordnet ist.
  8. Spender nach den Ansprüchen 6 und 7, dadurch gekennzeichnet, dass eine Steuereinrichtung für die genannte Blockiereinrichtung mit dem automatischen System verbunden ist und die Stellung des Vorratsbehälters (1) in bezug auf die Trageinrichtung (3) blockiert, während sich das Gleitstück verschiebt.
  9. Spender nach Anspruch 3, dadurch gekennzeichnet, dass der drehbare Arm (23) die Form eines länglichen Rahmens (24) hat und dass die elastische Aufhängung durch die Verbindung von zwei Federn (28, 29) mit unterschiedlichen Federkennlinien gebildet ist, wobei die eine und die andere der Federn an unterschiedlichen Orten am Rahmen (24) und an der Trageinrichtung (3) angreifen.
  10. Spender nach Anspruch 1, dadurch gekennzeichnet, dass die Stabilisiereinrichtung einen Detektor für den freiliegenden Pegel (8) der Flüssigkeit im Vorratsbehälter (1) umfasst und dass ein Flüssigkeitsbeschaffungsbehälter mit dem Vorratsbehälter (1) verbunden ist und Mittel zum periodischen Nachfüllen des Vorratsbehälters (1) vom Beschaffungsbehälter vorhanden sind, welcher in Funktion der Absenkung des freiliegenden Pegels (8) wirksam sind.
EP91901287A 1990-07-05 1990-12-18 Spender für die dosierte ausgabe von flüssigkeiten, insbesondere zur klebverbindung von elementen Expired - Lifetime EP0491009B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2248/90 1990-07-05
CH224890 1990-07-05

Publications (2)

Publication Number Publication Date
EP0491009A1 EP0491009A1 (de) 1992-06-24
EP0491009B1 true EP0491009B1 (de) 1994-03-02

Family

ID=4229334

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Application Number Title Priority Date Filing Date
EP91901287A Expired - Lifetime EP0491009B1 (de) 1990-07-05 1990-12-18 Spender für die dosierte ausgabe von flüssigkeiten, insbesondere zur klebverbindung von elementen

Country Status (8)

Country Link
US (1) US5316196A (de)
EP (1) EP0491009B1 (de)
AT (1) ATE102083T1 (de)
AU (1) AU6969491A (de)
DE (1) DE69007112T2 (de)
DK (1) DK0491009T3 (de)
ES (1) ES2051115T3 (de)
WO (1) WO1992000814A1 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2270271B (en) * 1992-08-18 1996-05-15 Paul Holt Air circuit
US5782382A (en) * 1995-12-27 1998-07-21 International Sanitary Ware Manufacturing Cy Dispenser for personal hygiene liquids
US7753232B2 (en) * 2005-08-09 2010-07-13 Keyes Denis E Fluid dispensing apparatus
US7883287B2 (en) * 2007-05-10 2011-02-08 HCT Asia, Ltd Dispenser with thermal storage tip
US9538828B2 (en) 2011-11-16 2017-01-10 Hct Packaging, Inc. Thermal storage cosmetic applicator
US9504370B2 (en) * 2012-12-07 2016-11-29 Ecolab Usa Inc. Magnetic low product indicator
US20160058155A1 (en) 2014-09-02 2016-03-03 HCT Group Holdings Limited Container with dispensing tip
US9867448B2 (en) 2014-09-15 2018-01-16 HCT Group Holdings Limited Container with collapsible applicator
US9993059B2 (en) 2015-07-10 2018-06-12 HCT Group Holdings Limited Roller applicator
USD818641S1 (en) 2016-03-16 2018-05-22 HCT Group Holdings Limited Cosmetics applicator with cap
WO2018156974A1 (en) * 2017-02-24 2018-08-30 GreenStract, LLC Gravimetric apparatus for transferring fluids

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3074596A (en) * 1958-11-07 1963-01-22 American Radiator & Standard Pumping method and apparatus
US3495612A (en) * 1967-09-28 1970-02-17 Westinghouse Electric Corp Water pumping and control system
CH558521A (fr) * 1972-08-18 1975-01-31 Hormec Sa Distributeur de doses de fluide calibrees, et utilisation de ce distributeur.
GB1481143A (en) * 1973-08-13 1977-07-27 Bardeau W Liquid dispensing apparatus provided with means for automatically mixing two liquid components
WO1980001797A1 (en) * 1979-02-22 1980-09-04 D Haig Precision material filling systems
US4584964A (en) * 1983-12-12 1986-04-29 Engel Harold J Viscous material dispensing machine having programmed positioning
AU593288B2 (en) * 1985-10-15 1990-02-08 Tosoh Corporation Process and apparatus for injecting a minute volume of a solution and an apparatus therefor
US4657094A (en) * 1986-04-07 1987-04-14 Package Machinery Company Fill height detector in weighing and packaging system
US4840138A (en) * 1986-12-23 1989-06-20 Preferred Machining Corporation Fluid dispensing system
IT1208291B (it) * 1987-05-06 1989-06-12 Sasib Spa Dispositivo applicatore di colla liquida
US5100031A (en) * 1988-08-31 1992-03-31 Gte Products Corporation Method and apparatus for dosing and dispensing mercury into discharge lamps
US5150822A (en) * 1989-10-27 1992-09-29 The Wellcome Foundation Limited Mixing head for dispensing an actine ingredient

Also Published As

Publication number Publication date
DE69007112T2 (de) 1994-09-08
US5316196A (en) 1994-05-31
AU6969491A (en) 1992-02-04
ATE102083T1 (de) 1994-03-15
DE69007112D1 (de) 1994-04-07
ES2051115T3 (es) 1994-06-01
DK0491009T3 (da) 1994-07-18
EP0491009A1 (de) 1992-06-24
WO1992000814A1 (fr) 1992-01-23

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