WO2003082452A1 - Equipement pour la distribution regulee d'un produit liquide, en particulier un colorant pour peintures - Google Patents

Equipement pour la distribution regulee d'un produit liquide, en particulier un colorant pour peintures Download PDF

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Publication number
WO2003082452A1
WO2003082452A1 PCT/IB2003/001211 IB0301211W WO03082452A1 WO 2003082452 A1 WO2003082452 A1 WO 2003082452A1 IB 0301211 W IB0301211 W IB 0301211W WO 03082452 A1 WO03082452 A1 WO 03082452A1
Authority
WO
WIPO (PCT)
Prior art keywords
dispensing
colouring agent
equipment
circuits
pumping means
Prior art date
Application number
PCT/IB2003/001211
Other languages
English (en)
Other versions
WO2003082452A8 (fr
Inventor
Antonio Martinelli
Rodolfo Reggiani
Original Assignee
Cps Color Equipment S.P.A.
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 Cps Color Equipment S.P.A. filed Critical Cps Color Equipment S.P.A.
Priority to AU2003215831A priority Critical patent/AU2003215831A1/en
Publication of WO2003082452A1 publication Critical patent/WO2003082452A1/fr
Publication of WO2003082452A8 publication Critical patent/WO2003082452A8/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/40—Mixing liquids with liquids; Emulsifying
    • B01F23/49—Mixing systems, i.e. flow charts or diagrams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/80—Mixing plants; Combinations of mixers
    • B01F33/84—Mixing plants with mixing receptacles receiving material dispensed from several component receptacles, e.g. paint tins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/20—Measuring; Control or regulation
    • B01F35/22—Control or regulation
    • B01F35/221—Control or regulation of operational parameters, e.g. level of material in the mixer, temperature or pressure
    • B01F35/2211—Amount of delivered fluid during a period
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/20—Measuring; Control or regulation
    • B01F35/22—Control or regulation
    • B01F35/221—Control or regulation of operational parameters, e.g. level of material in the mixer, temperature or pressure
    • B01F35/2214—Speed during the operation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms
    • B01F35/715—Feeding the components in several steps, e.g. successive steps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/80—Forming a predetermined ratio of the substances to be mixed
    • B01F35/88—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
    • B01F2101/30—Mixing paints or paint ingredients, e.g. pigments, dyes, colours, lacquers or enamel

Definitions

  • This invention relates to equipment for the metered dispensing of a fluid product, in particular a colouring agent for paints, and a dispensing process using such equipment.
  • the invention has been developed with particular but not exclusive regard to equipment which can be incorporated into industrial plant for the manufacture of paints, varnishes, enamels, inks and fluid products in general .
  • Equipment of the type indicated above is generally used in the context of industrial plants for the preparation of coloured paints. As is well known, a very great variety of colour shades can be obtained by adding small doses of one or more concentrated colouring agents to a base product, generally of a white or neutral colour, in accordance with predetermined formulations .
  • the quantity of colouring agent which has to be dispensed is generally a very small fraction of the quantity of the base product and paint as a whole, as a result of which the accuracy required when metering colouring agents must be high in order to obtain the precise colour shade desired, at least for each container in a given production batch.
  • Equipment for the dispensing of colouring agents must therefore be designed to ensure high volumetric accuracy when metering colouring agents, partly in view of the small volumetric quantities which in general have to be dispensed.
  • one or more colouring agents are used in larger quantities than others, for example because a large number of batches of paint require a particular preferential colour shade.
  • high turnover colouring agents In order to avoid slowdowns in the paint manufacturing chain it is customary to provide equipment for the dispensing of high turnover colouring agents with larger pumps than those used for the other colouring agents. This arrangement does however restrict the flexibility of the plants, because it is difficult to obtain good accuracy when it is desired to produce particular batches of paints whose formulations require that the high turnover colouring agents be delivered in small percentages, similar to those for other colouring agents.
  • the purpose of this invention is to provide equipment for the metered dispensing of a fluid product, in particular a colouring agent for paints, which overcomes the above- mentioned disadvantages, and in particular can ensure high accuracy when dispensing either small or large quantities of fluid product, ensuring appropriate dispensing times which are satisfactorily short in relation to the quantity of fluid product which has to be dispensed, in particular making it possible for dispensing to take place at relatively high speed when the quantity of fluid product which has to be dispensed is correspondingly high.
  • Another object of the invention is to provide equipment which is simple and economical to manufacture, of small dimensions, and which is highly reliable when in use without particular attention being necessary for maintenance.
  • the invention relates to an equipment for the metered dispensing of a colouring agent product for paints, characterised in that it comprises, in a working combination:
  • At least two dispensing circuits for the colouring agent communicating with the single tank, pumping means feeding the at least two dispensing circuits, intercepting means located in each dispensing circuit, downstream from the pump means and selectively activatable to deliver the fluid product to a corresponding dispensing pipe, and
  • - actuator means to control the pumping means, comprising a single motor operatively connected to the pumping means .
  • the invention also relates to a process for the metered dispensing of a fluid product through equipment of the above-mentioned type, characterised in that it comprises the stages of: establishing a predetermined quantity of the liquid product which is to be dispensed, and selectively activating the interception means for a predetermined time so as to dispense the said predetermined quantity of fluid product through only one of the at least two dispensing circuits.
  • the pumping means according to this invention may comprise a single pumping unit which feeds the at least two dispensing circuits, or separate pumps for each dispensing circuit.
  • an encoder or other control means which are capable of detecting operating characteristics, including preferably speed, associated with the single motor or the motor means which drive the pump means may be provided.
  • the system may make use of the information so obtained to check the accuracy of the volume of colouring agent dispensed, and/or establish the method of operation in order to dispense the desired dose .
  • the information from the control means is considered in association with other information relating to the system, such as for example, but not restricted thereto, characteristic parameters of the components of the equipment.
  • the pumping means are rotatory metering pumps. Those skilled in the art may however use any system which is capable of performing the same functions .
  • the single motor, the pumps and any other components forming part of the equipment in question which are operationally connected together are housed on a support in such a way as to constitute a modular unit which can be easily inserted within more complex systems, and which is easy to remove and fit for any repairs or replacements .
  • Another advantageous feature of the invention is that it provides a control system capable of selectively determining the use of one of the at least two dispensing circuits on the basis of a comparison between the volume dispensed and the consequent efficiency.
  • product recirculation devices may be housed between the pumps and the interception means to allow maintenance and/or cleaning of the last length of the dispensing circuit .
  • all the pumps may at all times remain operatively driven by the single motor providing interception means which prevent dispensing to the container intended to receive the product, associated with recirculation means of the known type.
  • FIG. 1 is a functional diagram of a system for the dispensing of fluid products according to this invention
  • Figure 2 is a front elevation view of a detail of equipment for the dispensing of fluid products according to this invention
  • Figure 3 is a view along the arrow III in Figure 2
  • Figure 4 is a diagram showing accuracy values and dispensing times which are characteristic of the system to which this invention relates as a function of the volumes which have to be dispensed.
  • equipment 1 for the metered dispensing of fluid products comprises a tank 10 in which a colouring agent product is stored while waiting to be dispensed.
  • two dispensing circuits 20a and 20b having a low and a high dispensing capacity respectively leave tank 10.
  • Low capacity circuit 20a comprises a colouring agent feed pipe 21a which is connected at the end opposite to that at which it is connected to tank 10 to a smaller pump 22a, preferably a metering pump, and in particular, although not exclusively, of the rotary type.
  • a delivery pipe 23a at the end of which there is a first intercepting member 24a, preferably a 3 -way, two-position valve.
  • a dispensing pipe 26a empties out into a dispensing zone 27 in which a container 30 positioned to receive the components of the paint which is to be manufactured can be placed.
  • a recirculation pipe 25a which communicates with tank 10 so as to return the colouring agent there when intercepting member 24a interrupts the flow of colouring agent towards dispensing zone 27 also leads from intercepting member 24a.
  • high capacity circuit 20b comprises a pipe 21b feeding colouring agent from tank 10 to a larger pump 22b.
  • a delivery pipe 23b leaves larger pump 22b and has an intercepting member 24b at its end opposite larger pump 22b.
  • Dispensing pipe 26b and a recirculation pipe 25b leave intercepting member 24b, and these, as indicated above in the case of low capacity circuit 20a, are designed to carry the colouring agent to container 30 or tank 10 respectively.
  • Intercepting members 24a, 24b have the function of enabling recirculation pipes 25a, 25b to transport colouring agent, shutting off dispensing pipes 26a, 26b or vice versa.
  • the low and high capacity circuits 20a and 20b consist of similar functional members which in particular differ from each other from the point of view of dimensional characteristics .
  • a central motor 50 controls both smaller and larger pumps 22a and 22b through transmissions 52 and 54.
  • a device to detect the speed of motor 56 preferably an encoder, is mounted on motor 50. Detection device 56 is operatively connected to a control member 60 which receives the signals from it indicating the speed of motor 50, and may possibly process them, together with other parameters which are characteristic of the operation of the system, and thus choose which of the two low and high capacity circuits 20a and 20b to use to dispense the quantity of colouring agent required.
  • Control member 60 may control intercepting members 24a and 24b through communication circuits 62 and 63 respectively so that one of the two causes the colouring agent to be directed towards container 30 and the other directs it to recirculation. Control member 60 may also control the rotation of motor 50 through communication circuits 64 so as to obtain dispensing of the precise dose desired, or to keep the speed of the motor constant within preset limits.
  • motor 50 preferably of the electrical type, controlled for example by an inverter, is mounted on a supporting plane 70 housed in a frame 110 which encloses within itself modular equipment 65.
  • Motor 50 is connected to a reduction gearbox 72 from which pass two transmission shafts 74 and 76 operatively connected to corresponding universal joints 78 and 80.
  • the universal joints are in turn operatively connected to corresponding drive shafts 82 and 84 of the pumps of smaller size 22a and larger size 22b.
  • Smaller pump 22a has an inlet opening 86 to which feed pipe 21 communicating with tank 10 is connected.
  • larger pump 22b has an inlet opening 88 which is connected to feed pipe 21a, which itself, as described above, communicates with the same tank 10.
  • Smaller pump 22a also has an outlet opening 90 to which delivery pipe 23a is connected.
  • larger pump 22b has an outlet opening 92 to which delivery pipe 23b is connected.
  • the connections between pipes 21a, 21b and corresponding pumps 22a, 22b are constructed using components of a known and standard type and will not therefore be further described in this description.
  • a fast rotation shaft 94 which is directly connected to the drive shaft of motor 50.
  • Encoder 56 is preferably mounted on fast shaft 94. In another preferred embodiment encoder 56 may be mounted directly on the drive shaft of motor 50.
  • feed pipes 21a, 21b and delivery pipes 23a, 23b are mounted a number of taps 96, 98, 100, 102 to isolate the equipment from the rest of the circuit in which it is included in order, for example, to permit easy replacement or rapid maintenance .
  • Curve CVA represents the hypothetical change in the delivery error, otherwise known as the accuracy, of a circuit of a type similar to low capacity circuit 20a in relation to the volume of material which has to be dispensed.
  • Curve CVB indicates the change in the same parameter for a circuit similar to high capacity circuit 20b.
  • Curves CVC and CVD indicate the time difference required to dispense the volume of colouring agent through smaller pump 22a and larger pump 22b respectively. All the curves and relationships indicated are purely diagrammatical and are to be considered purely as examples. Some facts which are of general validity can however be observed.
  • the accuracy curve for the smaller pump CVA lies below that value only for dispensed volumes greater than a certain minimum value VI. This means that using smaller pump 22a it is not possible to ensure an accuracy of 1% for values of volumes which have to be dispensed which are less than the minimum value VI . In the case of higher values on the other hand the accuracy is always better, and are seen to lie around an asymptotic value less than 1%.
  • the time curve for the smaller pump CVC indicates however that the time required for dispensing is very high in the case of large volumes.
  • equipment 1 illustrated in the figures comprises only two low and high capacity circuits 20a and 20b, it is however possible to extend the innovative concept to any number of circuits, including those of an intermediate capacity, having functional characteristics which are similar to those described above .

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Coating Apparatus (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)

Abstract

Cette invention concerne un équipement (1) servant à la distribution régulée d'un produit liquide, en particulier un colorant. L'équipement comprend un réservoir simple (10) pour le colorant, duquel partent des circuits de distribution (20a, 20b). Les circuits de distribution sont alimentés par des moyens de pompage (22a, 22b) commandés par un moteur commun (50). Pendant le fonctionnement de l'équipement, les moyens d'interception (24a, 24b) sont sélectivement activés selon la quantité totale de colorant à distribuer sur une durée préétablie.
PCT/IB2003/001211 2002-03-28 2003-03-26 Equipement pour la distribution regulee d'un produit liquide, en particulier un colorant pour peintures WO2003082452A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003215831A AU2003215831A1 (en) 2002-03-28 2003-03-26 Equipment for the metered dispensing of a fluid product, in particular a colouring agent for paints

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITBO2002A000162 2002-03-28
IT2002BO000162A ITBO20020162A1 (it) 2002-03-28 2002-03-28 Apparecchiatura per l'erogazione dosata di un prodotto fluido , in particolare un colorante per pittura

Publications (2)

Publication Number Publication Date
WO2003082452A1 true WO2003082452A1 (fr) 2003-10-09
WO2003082452A8 WO2003082452A8 (fr) 2004-01-08

Family

ID=11440008

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2003/001211 WO2003082452A1 (fr) 2002-03-28 2003-03-26 Equipement pour la distribution regulee d'un produit liquide, en particulier un colorant pour peintures

Country Status (3)

Country Link
AU (1) AU2003215831A1 (fr)
IT (1) ITBO20020162A1 (fr)
WO (1) WO2003082452A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005107933A1 (fr) 2004-05-07 2005-11-17 Fluid Management, Inc. Appareil de distribution d'une pluralite de materiaux et procede de malaxage de substances
US7185789B2 (en) 2004-02-27 2007-03-06 Lenteq, Lp Hair dye dispenser
EP1908510A3 (fr) * 2006-10-04 2009-04-08 Dromont S.p.A. Dispositif automatique pour mélanger des liquides, particulièrement des peintures ou des vernis
US7654416B2 (en) 2004-02-27 2010-02-02 Stibbe Management Bv Fluid and hair-dye dispensers
ITUD20090101A1 (it) * 2009-05-22 2010-11-23 Cps Color Equipment Spa Dispositivo di azionamento per elettrovalvole e relativo procedimento
CN106622011A (zh) * 2016-11-17 2017-05-10 天津滨海光热反射技术有限公司 镀银线淋漆段配料及控制系统及其控制方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4027785A (en) * 1976-04-12 1977-06-07 Chicago Commutator, Inc. Dual pump colorant dispenser
US4844297A (en) * 1986-07-03 1989-07-04 Darenth Equipment, Ltd. Fluid dispensing apparatus and method of operation thereof
EP0616276A1 (fr) * 1993-03-17 1994-09-21 I.A.S. INDUSTRIAL AUTOMATION SYSTEMS S.A.S. di D. GALLI & C. Appareil d'acheminement de quantités dosées de fluide
US5938080A (en) * 1997-02-21 1999-08-17 The Geon Company System and apparatus for dispensing high-viscosity pigments

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4027785A (en) * 1976-04-12 1977-06-07 Chicago Commutator, Inc. Dual pump colorant dispenser
US4844297A (en) * 1986-07-03 1989-07-04 Darenth Equipment, Ltd. Fluid dispensing apparatus and method of operation thereof
EP0616276A1 (fr) * 1993-03-17 1994-09-21 I.A.S. INDUSTRIAL AUTOMATION SYSTEMS S.A.S. di D. GALLI & C. Appareil d'acheminement de quantités dosées de fluide
US5938080A (en) * 1997-02-21 1999-08-17 The Geon Company System and apparatus for dispensing high-viscosity pigments

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7185789B2 (en) 2004-02-27 2007-03-06 Lenteq, Lp Hair dye dispenser
US7597217B2 (en) 2004-02-27 2009-10-06 Lenteq, Lp Two disc valve pump assembly for a fluid dispenser
US7654416B2 (en) 2004-02-27 2010-02-02 Stibbe Management Bv Fluid and hair-dye dispensers
WO2005107933A1 (fr) 2004-05-07 2005-11-17 Fluid Management, Inc. Appareil de distribution d'une pluralite de materiaux et procede de malaxage de substances
EP1747060A1 (fr) * 2004-05-07 2007-01-31 Fluid Management, Inc. Appareil de distribution d'une pluralite de materiaux et procede de malaxage de substances
JP2008502461A (ja) * 2004-05-07 2008-01-31 フルイド マネジメント インコーポレーテッド 複数の材料を分配する装置及び物質を混合する方法
AU2005240369B2 (en) * 2004-05-07 2008-12-04 Fast & Fluid Management B.V. Apparatus for dispensing a plurality of materials and method of compounding substances
EP2266689A3 (fr) * 2004-05-07 2011-03-23 Fluid Management Operations, Inc. Appareil pour la distribution de plusieurs matériaux et procédé de malaxage de substances
EP1908510A3 (fr) * 2006-10-04 2009-04-08 Dromont S.p.A. Dispositif automatique pour mélanger des liquides, particulièrement des peintures ou des vernis
ITUD20090101A1 (it) * 2009-05-22 2010-11-23 Cps Color Equipment Spa Dispositivo di azionamento per elettrovalvole e relativo procedimento
CN106622011A (zh) * 2016-11-17 2017-05-10 天津滨海光热反射技术有限公司 镀银线淋漆段配料及控制系统及其控制方法

Also Published As

Publication number Publication date
WO2003082452A8 (fr) 2004-01-08
ITBO20020162A1 (it) 2003-09-29
AU2003215831A1 (en) 2003-10-13
ITBO20020162A0 (it) 2002-03-28

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