EP0372460A1 - Apparat zum Steuern der gleichzeitigen Zufuhr verschiedener Farbflüssigkeiten in einer Mischanlage zur Herstellung von Farben - Google Patents

Apparat zum Steuern der gleichzeitigen Zufuhr verschiedener Farbflüssigkeiten in einer Mischanlage zur Herstellung von Farben Download PDF

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Publication number
EP0372460A1
EP0372460A1 EP89122349A EP89122349A EP0372460A1 EP 0372460 A1 EP0372460 A1 EP 0372460A1 EP 89122349 A EP89122349 A EP 89122349A EP 89122349 A EP89122349 A EP 89122349A EP 0372460 A1 EP0372460 A1 EP 0372460A1
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EP
European Patent Office
Prior art keywords
liquid
motor
fan
plant
container
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
Application number
EP89122349A
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English (en)
French (fr)
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EP0372460B1 (de
Inventor
Attilio Silvestri
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Individual
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Individual
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Publication date
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Priority to AT8989122349T priority Critical patent/ATE104569T1/de
Publication of EP0372460A1 publication Critical patent/EP0372460A1/de
Application granted granted Critical
Publication of EP0372460B1 publication Critical patent/EP0372460B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B01F23/02—Maintaining the aggregation state of the mixed materials
    • B01F23/023—Preventing sedimentation, conglomeration or agglomeration of solid ingredients during or after mixing by maintaining mixed ingredients in movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/88—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with a separate receptacle-stirrer unit that is adapted to be coupled to a drive mechanism
    • 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
    • B01F35/80—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
    • B01F35/882—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise using measuring chambers, e.g. volumetric pumps, for feeding the substances
    • 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 a computerized automatic plant for the simultaneous feed of several pigmented liquids of different colour to obtain a paint product of tile desired colour.
  • the various pigmented liquids are currently mixed together mainly by equipment which suffers from poor reproducibility of the paint product characteristics.
  • the conventional syringe machine which can be manual or semiautomatic, the error in the delivery of the individual liquids can range from 5 to 20%.
  • said apparatus enables the individual liquids to be metered with high accuracy and reproducibility, and is of low cost and simple and economical operation.
  • Said plant comprises a series of tanks 1, each of which contains a pigmented liquid of different colour and feeds a corresponding series of metering pumps 3, each of which delivers the respective liquid to the corresponding solenoid valve 6 which, according to the command which it receives, either feeds the liquid into the collection container 20 in which the liquids originating from the various tanks 1 are mixed, or recycles the liquid to its tank 1 of origin through the pipe 8.
  • Said apparatus for controlling the simultaneous feed of the various liquids is characterised by comprising: - a motor-reduction gear unit 11, 12 which transmits its stepped-­down motion to a positive displacement metering pump 3 which transfers the liquid from a tank 1 to a solenoid valve 6; - a fan 13 coaxial with the motor 11, and to which the motor 11 directly transmits its motion without step-down; - a proximity switch 14 installed in correspondence with said fan and arranged to determine the number of revolutions through which the motor has rotated, to convert this into electrical signals and to feed these signals to the computer 22; - a computer 22 into which the quantity of liquid to be fed to the container 20 is keyed and which controls the operations required for this feed.
  • the plant consists of several modules, each of which comprises a tank 1 containing one of the liquids to be delivered, and connected to a positive displacement metering pump 3 by a suction pipe 4.
  • a shut-off valve 5 In the suction pipe 4 there is connected a shut-off valve 5 and a fine mesh filter 5′ for removing from the liquid any foreign matter which could damage the circuit.
  • the liquid is pumped by the pump 3 in the direction of a 3-way, 2-­position solenoid valve 6 connected to the same pump by a discharge pipe 7 of smaller cross-section than the suction pipe 4.
  • valve 6 If the valve 6 is unenergized and therefore not switched over, the liquid reaching it is recycled to its tank 1 of origin through the recycle pipe 8, which is of equal cross-section to the discharge pipe 7.
  • the valve is energized with the result that it has been switched over, the liquid is delivered into a collection container 20 through a delivery nozzle 9 of small cross-section.
  • the apparatus for controlling the feed of the various liquids consists of the motor 11, the reduction gear 12, the fan 13, the proximity switch 14 and the computer 22.
  • the motor-reduction gear unit 11, 12 transmits its stepped-down motion to the pump 3, whereas the motor 11 directly transmits its motion without step-down to the fan 13 coaxial with it.
  • the fan 13 is composed of twelve equidistant radial blades .
  • the proximity switch 14 is fixed in correspondence with said fan 13. It determines the number of revolutions through which the mo­tor 11 has rotated by counting the number of blades which have passed by, then translates this data into electrical pulses and feeds these pulses to the computer 22.
  • the computer 22 into which the quantity of liquid to be delivered is keyed, starts the motor-reduction gear-pump unit, receives and memorizes the number of fan blades which have passed by, switches the solenoid valves 6 to allow delivery of liquid to the container 20, counts the number' of pulses corresponding to the quantity of liquid to be delivered and then reswitches the solenoid valve 6 and halts the motor 11.
  • the plant consists of a number of unit modules of the described type equal to the number of different liquids which can be used, and these liquids do not come into mutual contact other than in the container 20 in which they are mixed.
  • Said plant can consist for example of 30 modules of the described type, each of which is designed to deliver a different coloured liquid to the container 20. Obviously, the number of said modules is chosen on the basis of production requirements.
  • the various coloured liquids are delivered in the proportions necessary to obtain the desired colour of the final mixture which constitutes the paint product.
  • the tanks 1 are constructed preferably of thermoplastic polymer or copolymer such as polyformaldehyde, but they can also be constructed of metal such as stainless steel. They are provided with stirrers 10 driven by motors 2, which are powered at predetermined time intervals to prevent pigment deposition.
  • the tanks have an asymmetric funnel-­shaped base to prevent pigment sedimentation.
  • the pump 3 used for metering the liquid is of the positive displacement type.
  • the solenoid valve 6 is of the fast response type able to reduce errors to a minimum.
  • the response time is 10 msec.
  • the valve 6 operates with alternating current.
  • An electrical pulse fed to the magnetic energizing solenoid attracts the deviator armature which remains in this position until the solenoid is de-energized.
  • the containers 20 are supplied in different sizes because the quantity of paint product required or any given delivery differs. Said containers are raised to a height representing a minimum distance from the nozzles 9 by a mobile platform 19 able to be moved up and down vertically by an electrical actuator 21.
  • the mixture formed from the liquids delivered into the container 20 is homogenized during this operation for example by a mechanical stirrer or vibrator.
  • Said unit comprises: peripheral hardware, control and implementation hardware, central control unit (computer), data acquisition and user dialogue software, and execution software for the acquired input.
  • the peripheral hardware is represented by all the equipment the user uses for dialogue with the computer and consists of the alphanumerical keyboard, monitor, printer and floppy disks.
  • control and implementation hardware is represented by a data acquisition system based on individual digital input and output modules which, without any configuration restriction, can be connected together and to the computer to form a complete system according to the individual application requirements.
  • the central control unit comprises a number of cards equal to the number of peripherals used plus the required functions.
  • the data acquisition and user dialogue software consists of the automatic coded formula schedules, manually compiled schedules for new formulas, delivery test schedules, personalized check-control publicity schedules and menu schedules for the use and ordinary maintenance of the plant.
  • the acquired input execution software is represented by a connection program for enabling the apparatus to operate in the production of the paint product. It is a specific program created on the basis of the data keyed in by the user, the physical characteristics of the liquids used, and the characteristics of the apparatus itself.
  • the automatic coded formula schedule or manually compiled schedule is displayed on the monitor screen.
  • the various unit quantities of liquids to be dispensed are set by the alphanumerical keyboard.
  • the capacity of the required container 20 is then keyed in, with the result that the mobile platform 19 is automatically and directly moved into the correct position and the unit quantities are multiplied if the required quantity exceeds the set quantity.
  • the container is placed on the platform and the signal to start the feed is then fed by means of the displayed keyboard.
  • the operations to be carried out in sequence are at the most five in number and the simultaneous delivery time for all the liquids does not exceed 45 seconds even in the case of complicated formulas. Thus the machine working cycle takes a maximum time of about 60 seconds.
  • the apparatus is preset to deliver a minimum liquid quantity of 0.1 mm with an accuracy of 2.5%.
  • the control of the liquid feed to the container 20 is effected in the following manner.
  • the motor-­reduction gear 11, 12 On receiving a start command from the computer, the motor-­reduction gear 11, 12 begins to transfer liquid from the tank 1 to the solenoid valve 6 which, as it is not energized by the electric current, causes the liquid to recycle back to its tank 1 of origin.
  • the motor 11 also transmits its rotation directly without step-­down to the fan 13 which besides cooling the motor also enables the proximity switch 14 to determine the number of revolutions through which the motor rotates, in that one revolution of the motor corresponds to the passing of twelve blades of the fan 13.
  • the proximity switch 14 converts the number of blades of the fan 13 which have passed by into electrical pulses which it feeds to the computer for memorizing.
  • the computer takes the first subsequent blade signal as the switching signal for the solenoid valve 6, which then deviates the liquid into the container 20.
  • the computer feeds signals for reswitching the solenoid valve 6 and halting the motor 11.
  • the described plant can be used by either a producer or seller of paint products, with considerable economical and commercial advantages.
  • the producer By combining several pigmented liquids the producer is able to obtain a wide range of colours and to reproduce others in a repeatable and proportional manner.
  • the producer is able to completely satisfy the special requirements which the consumer places on his supplier without any slow down in production rate and without any increase in labour, which would substantially increase the cost of the final product.
  • the retailer using said plant is able to considerably reduce the amount of stock as he needs only to stock the main colours sold, the others then being made up by the apparatus itself.
  • the consumer is able to choose from a wide range of colours divided into innumerable shades, or indeed opt for shades between one colour and another, with the guarantee of reproducibility of the paint product characteristics.
  • paint products can be prepared for numerous fields of application such as the building sector, the industrial and marine sector, vehicle bodywork, domestic electrical appliances and wood, as can inks, and also dyes for the textile and other industries.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Accessories For Mixers (AREA)
  • Paints Or Removers (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
EP89122349A 1988-12-06 1989-12-04 Apparat zum Steuern der gleichzeitigen Zufuhr verschiedener Farbflüssigkeiten in einer Mischanlage zur Herstellung von Farben Expired - Lifetime EP0372460B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT8989122349T ATE104569T1 (de) 1988-12-06 1989-12-04 Apparat zum steuern der gleichzeitigen zufuhr verschiedener farbfluessigkeiten in einer mischanlage zur herstellung von farben.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT8822894A IT1227523B (it) 1988-12-06 1988-12-06 Apparecchiatura per la regolazione dell'alimentazione contemporanea di piu' liquidi pigmentati in un impianto per la preparazione di prodotti vernicianti
IT2289488 1988-12-06

Publications (2)

Publication Number Publication Date
EP0372460A1 true EP0372460A1 (de) 1990-06-13
EP0372460B1 EP0372460B1 (de) 1994-04-20

Family

ID=11201627

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89122349A Expired - Lifetime EP0372460B1 (de) 1988-12-06 1989-12-04 Apparat zum Steuern der gleichzeitigen Zufuhr verschiedener Farbflüssigkeiten in einer Mischanlage zur Herstellung von Farben

Country Status (4)

Country Link
EP (1) EP0372460B1 (de)
AT (1) ATE104569T1 (de)
DE (1) DE68914799T2 (de)
IT (1) IT1227523B (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999019628A1 (en) * 1997-10-13 1999-04-22 Corob International Ag Dispensing unit for a fluid dispensing machine, comprising a variable-volume pumping chamber, and machine comprising said dispensing unit
EP1090679A1 (de) * 1998-10-07 2001-04-11 Fluid Management Abgabevorrichtung für viskose Flüssigkeiten
CN102717979A (zh) * 2011-03-28 2012-10-10 流体管理运转有限公司 用于防止液体偏析的液体分配器及方法
DE102015118915A1 (de) * 2015-11-04 2017-05-04 Schulz Farben- Und Lackfabrik Gmbh Verfahren zur Herstellung von Bautenfarben und System
DE102015118926A1 (de) * 2015-11-04 2017-05-04 Schulz Farben- Und Lackfabrik Gmbh Halbfabrikate zu Bautenfarben und Bautenfarben
DE102015118923A1 (de) * 2015-11-04 2017-05-04 Schulz Farben- Und Lackfabrik Gmbh Anlage zur Herstellung von Bautenfarben
FR3093712A1 (fr) * 2019-03-11 2020-09-18 Fillon Technologies machine de distribution de produit liquide ou pâteux

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2923438A (en) * 1958-06-09 1960-02-02 Martin Senour Company Automatic paint manufacturing machine
US4046287A (en) * 1976-05-10 1977-09-06 Graco Inc. Automatic metering and dispensing system
DE3201221A1 (de) * 1982-01-16 1983-07-28 Walter 4600 Dortmund Ribic Station zum anmischen insbesondere von farben und dergleichen
GB2133775A (en) * 1983-01-10 1984-08-01 Applied Color Systems Inc Apparatus and process for low volume dispensing and mixing
WO1986002320A1 (en) * 1984-10-12 1986-04-24 Corob S.R.L. Automatic Machinery Project Method for the batching of colouring agents into paints and varnishes by volume, and a machine therefor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2923438A (en) * 1958-06-09 1960-02-02 Martin Senour Company Automatic paint manufacturing machine
US4046287A (en) * 1976-05-10 1977-09-06 Graco Inc. Automatic metering and dispensing system
DE3201221A1 (de) * 1982-01-16 1983-07-28 Walter 4600 Dortmund Ribic Station zum anmischen insbesondere von farben und dergleichen
GB2133775A (en) * 1983-01-10 1984-08-01 Applied Color Systems Inc Apparatus and process for low volume dispensing and mixing
WO1986002320A1 (en) * 1984-10-12 1986-04-24 Corob S.R.L. Automatic Machinery Project Method for the batching of colouring agents into paints and varnishes by volume, and a machine therefor

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999019628A1 (en) * 1997-10-13 1999-04-22 Corob International Ag Dispensing unit for a fluid dispensing machine, comprising a variable-volume pumping chamber, and machine comprising said dispensing unit
EP1090679A1 (de) * 1998-10-07 2001-04-11 Fluid Management Abgabevorrichtung für viskose Flüssigkeiten
CN102717979A (zh) * 2011-03-28 2012-10-10 流体管理运转有限公司 用于防止液体偏析的液体分配器及方法
EP2505259A3 (de) * 2011-03-28 2013-03-27 Fluid Management Operations LLC Flüssigkeitsspender und Verfahren zum Verhindern einer Flüssigkeitstrennung
CN102717979B (zh) * 2011-03-28 2016-08-17 流体管理运转有限公司 用于可选择地分配多种液体中的一种或更多种的装置
DE102015118915A1 (de) * 2015-11-04 2017-05-04 Schulz Farben- Und Lackfabrik Gmbh Verfahren zur Herstellung von Bautenfarben und System
DE102015118926A1 (de) * 2015-11-04 2017-05-04 Schulz Farben- Und Lackfabrik Gmbh Halbfabrikate zu Bautenfarben und Bautenfarben
DE102015118923A1 (de) * 2015-11-04 2017-05-04 Schulz Farben- Und Lackfabrik Gmbh Anlage zur Herstellung von Bautenfarben
FR3093712A1 (fr) * 2019-03-11 2020-09-18 Fillon Technologies machine de distribution de produit liquide ou pâteux
WO2020183098A3 (fr) * 2019-03-11 2020-11-05 Fillon Technologies Machine de distribution de produit liquide ou pateux et procédé de commande en fonctionnement de la dite machine
US11634315B2 (en) 2019-03-11 2023-04-25 Fillon Technologies Machine for distributing a liquid or pasty product

Also Published As

Publication number Publication date
DE68914799D1 (de) 1994-05-26
DE68914799T2 (de) 1994-08-04
ATE104569T1 (de) 1994-05-15
IT8822894A0 (it) 1988-12-06
EP0372460B1 (de) 1994-04-20
IT1227523B (it) 1991-04-12

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