EP0491009A1 - Fluid dose feeder particularly for glueing workpieces. - Google Patents
Fluid dose feeder particularly for glueing workpieces.Info
- Publication number
- EP0491009A1 EP0491009A1 EP91901287A EP91901287A EP0491009A1 EP 0491009 A1 EP0491009 A1 EP 0491009A1 EP 91901287 A EP91901287 A EP 91901287A EP 91901287 A EP91901287 A EP 91901287A EP 0491009 A1 EP0491009 A1 EP 0491009A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- reservoir
- applicator
- fluid
- support
- dispenser
- 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
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
- 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
- Fluid dose dispenser especially for bonding parts
- the object of the present invention is to provide an improvement to dispensers for doses of fluid, in particular for bonding parts, comprising a glue tank, an applicator connected to the tank 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 is a schematic view illustrating the principle of this embodiment
- FIG. 2 is an elevational view of the embodiment described
- FIG. 3 is a top plan view of the dispenser of FIG. 2.
- 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 reservoir is suspended by a spring, the characteristics of which for the instant need not be specified 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 located 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. tackle 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. In FIGS. 1 and 2, it is shown in the rest position. Periodically, an ou ⁇ worker takes it to perform a bonding operation, then replaces 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.
- the quantity of liquid which it contains, and which the pipe 4 contains is constantly the same, this which ensures constant preparation of the applicator for the next operation of dispensing a dose of fluid.
- the action of a pneumatic pulse generator is shown in the form of a tube 9 opening into a su ⁇ Stainlesseur area of the tank 1, practically in contact with the fluid. This representation is here only intended to make the operation of the system understandable.
- a pulse generator causing temporary 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, albeit different, system and present, for example, an arrangement avoiding any 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 adapted to the introduction of the body of the syringe 5 of which 1 • needle 7 is arranged vertically downwards.
- Another orifice 16 also formed in the cover of the reservoir, allows the sending of pulses pneu ⁇ matician in the tank 1 through another flexible pipe which is shown at 17 in fig. 2.
- the flexible pipe 17 starts from a connector 18 secured to the base plate 10, a connector which passes through a desiccator 19 com ⁇ municating itself, by a connector 20, with a supply tube 21 which leads the pneumatic pulses generated from an electronically controlled device, which is known per se and is therefore not part of the present invention.
- the reservoir 1 is suspended by means of two diametrically opposite tenons 22, with two branches, parallel pa ⁇ 23 of a frame 24 having a crosspiece at its rear end and carrying two pivote ⁇ ment pins 26 which penetrate into the lugs 27 formed horizontally in the upright 11, near 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 res ⁇ spell 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 mon ⁇ while it.
- the eccentric 30 makes it easy to adjust the force of the spring 29 and, consequently, to adjust the height stroke of the reservoir 1 as a function of its degree of filling or emptying.
- the frame 24 also comprises a transverse rod 32 extending between the two branches 23 near the location of the reservoir 1.
- 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 os ⁇ cillations 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.
- the dispenser of fluid doses 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 which elapses between these operations.
- the device described Given its low weight and reduced footprint, the device described can be easily mounted on a vertical slide, a mobile table or a robot. It is possible to place a position sensor 35 on the upright 11. In fact, since the position of the frame 24 is constantly determined by the degree of filling of the tank 1, it takes a limit position when the tank is practically empty.
- the sensor 35 can therefore be placed so as to detect the moment when the frame reaches this limited position and signal, for example, the need for filling the reservoir. This sensor can also transmit, in good time, an order tending to increase the duration of the pneumatic pulses when the reservoir approaches its complete emptying state.
- the stabilizing arrangement described above could, in another embodiment, include a detector of the height of the free level relative to the reservoir and control means subject to the indications of the detector and acting so as to provide Periodically cut the tank from a container containing a reserve of fluid.
- the control means subject to the indications of the detector could include, for example, a pump passing fluid from the container to the reservoir, or a clamp comprising a flexible hose which connects the container to the reservoir.
- the free level in the tank would be reduced periodically to a fixed height.
- the device described is suitable for cyano-acrylate types, as well as for the distribution of volatile or aggressive liquids.
- the dispenser It also has the property that the volumes of air introduced into the reservoir 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.
Abstract
Description
Claims
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 true EP0491009A1 (en) | 1992-06-24 |
EP0491009B1 EP0491009B1 (en) | 1994-03-02 |
Family
ID=4229334
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91901287A Expired - Lifetime EP0491009B1 (en) | 1990-07-05 | 1990-12-18 | Fluid dose feeder particularly for glueing workpieces |
Country Status (8)
Country | Link |
---|---|
US (1) | US5316196A (en) |
EP (1) | EP0491009B1 (en) |
AT (1) | ATE102083T1 (en) |
AU (1) | AU6969491A (en) |
DE (1) | DE69007112T2 (en) |
DK (1) | DK0491009T3 (en) |
ES (1) | ES2051115T3 (en) |
WO (1) | WO1992000814A1 (en) |
Families Citing this family (11)
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 |
WO2016036761A1 (en) | 2014-09-02 | 2016-03-10 | 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)
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 (en) * | 1972-08-18 | 1975-01-31 | Hormec Sa | Distribution of calibrated fluid doses - uses distributor for use with different fluids and range of doses |
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 |
CA1323004C (en) * | 1985-10-15 | 1993-10-12 | Yuji Higo | Process 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 (en) * | 1987-05-06 | 1989-06-12 | Sasib Spa | LIQUID GLUE APPLICATOR DEVICE |
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 |
-
1990
- 1990-12-18 US US07/836,346 patent/US5316196A/en not_active Expired - Lifetime
- 1990-12-18 DK DK91901287.2T patent/DK0491009T3/en active
- 1990-12-18 AT AT91901287T patent/ATE102083T1/en not_active IP Right Cessation
- 1990-12-18 WO PCT/EP1990/002261 patent/WO1992000814A1/en active IP Right Grant
- 1990-12-18 EP EP91901287A patent/EP0491009B1/en not_active Expired - Lifetime
- 1990-12-18 DE DE69007112T patent/DE69007112T2/en not_active Expired - Lifetime
- 1990-12-18 ES ES91901287T patent/ES2051115T3/en not_active Expired - Lifetime
- 1990-12-18 AU AU69694/91A patent/AU6969491A/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO9200814A1 * |
Also Published As
Publication number | Publication date |
---|---|
AU6969491A (en) | 1992-02-04 |
ATE102083T1 (en) | 1994-03-15 |
DE69007112D1 (en) | 1994-04-07 |
DK0491009T3 (en) | 1994-07-18 |
EP0491009B1 (en) | 1994-03-02 |
DE69007112T2 (en) | 1994-09-08 |
ES2051115T3 (en) | 1994-06-01 |
WO1992000814A1 (en) | 1992-01-23 |
US5316196A (en) | 1994-05-31 |
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