EP0537434A1 - Apparat zum Abliefern und Messen von flüssigen Substanzen - Google Patents

Apparat zum Abliefern und Messen von flüssigen Substanzen Download PDF

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Publication number
EP0537434A1
EP0537434A1 EP92113334A EP92113334A EP0537434A1 EP 0537434 A1 EP0537434 A1 EP 0537434A1 EP 92113334 A EP92113334 A EP 92113334A EP 92113334 A EP92113334 A EP 92113334A EP 0537434 A1 EP0537434 A1 EP 0537434A1
Authority
EP
European Patent Office
Prior art keywords
delivering
trolley
connector
control
heads
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Withdrawn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
EP92113334A
Other languages
English (en)
French (fr)
Inventor
Luigi Mariotti
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.)
IAS GmbH Industrie Automation Systeme
Original Assignee
IAS GmbH Industrie Automation Systeme
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 IAS GmbH Industrie Automation Systeme filed Critical IAS GmbH Industrie Automation Systeme
Publication of EP0537434A1 publication Critical patent/EP0537434A1/de
Withdrawn legal-status Critical Current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
    • 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

Definitions

  • the present invention relates to an apparatus for authomatically supplying and metering fluids or fluidisable substances which are to be delivered in metered quantities in a loose state and which are to be mixed, for example in the dye stuffs batching and auxiliary agents, for preparation of colouring and painting substances, as well as for metering and mixing chemical materials, food stuff or for other applications.
  • fluid substance means a liquid, party and/or fluidisable powdered or granulate material.
  • the main object of the present invention is to provide an automatic apparatus of the kind referred to above, capable to deliver metered quantities of stored fluid substances and to overcome the abovementioned drawbacks; in particular, the invention relates to an apparatus for automatically delivering metered quantities of fluid substances into a receiving container, provided with a programmable drive system for controlling the translational movements and the positioning of the container, designed to avoid sudden stoppages and start-ups, owing to the possibility of providing translational movements subject to a substantially trapezoidal movement law resulting in linear accelerations and decelerations which allow a gentle start-up and stoppage of the carriage supporting the container.
  • a further object of the invention is to provide a robotized installation for batching liquid dyestuffs, comonly called "colour shop", having high batching rhythm to increase production requirements.
  • a further object of the present invention is to provide a pneumatically actuated apparatus or Examtallation of the abovementioned kind which is particularly suitable for being used in dangerous environments or for dangerous substances, i.e. which is such that it possesses flameproof characteristics.
  • the apparatus substantially comprises a plurality of delivering heads 11 having automatically operable valve members 11', 11'' for supplying metered quantities of fluid or powdered substances, for example dyeing liquid substances stored in corresponding tanks 12 provided at a predetermined level on a supporting structure 13.
  • Each head 11 comprises therefore one or more valve means operated for example by pneumatic or electrical actuators to open and close the same valves to control the flow of the fluid substances from storing tanks 12 to the head 11 into a container or from an outer fluid source, such as water for head washing purpouse.
  • each delivering head 11 to a pressurised air source 14, in the example shown, is performed by means of a pneumatic connector comprising a movable connector element 15 and a plurality of fixed connector elements 16 each associated with a respective delivering head 11.
  • the movable connector element 15 is supported by a slider 17 movable along guide rails 18; the slide 17 is connected to drive means such as an hydraulically operated control cylinder 19 of the rodless type, by a per se known magnetic coupling; or different connecting device.
  • the control cylinder 19 is a double-acting cylinder actuated by a combined air/oil control system shown in figure 1 which allows an adequate control of accelerations, decelerations and speeds of the piston member of said control cylinder 19 and hence of the entrained load.
  • the slide 17 via an arm 20' is connected to a carriage 20 or trolley provided with an electronic scale 21, or similar weighing device, supporting a container 22 (Fig. 3) for receiving metered quantities of fluid substances supplied by the delivering heads 11.
  • the trolley 20 may be of any suitable type; for example may comprises a lifting device to lift the scale 21 to an appropriate level.
  • a microprocessor or logic unit 33 controls the apparatus and particularly the heads 11 to be actuated, as well as the quantities of fluid substances to be delivered and metered at each batching.
  • 23 denotes solenoid valves for selectively controlling the supply of pressurised air to the delivering heads 11 via connector elements 15, 16, while 24 denotes a position sensing means for the slider 17 and trolley 20, respectively, which in the specific case of Figure 2 consists of a plurality of pneumatic limit switchs 24' provided in corrispondence of each delivering head 11, to define an absolute type encoder; the limit switchs 24' are actuated in sequence by the movement of the slider 17 so as to provide pneumatic position signals to the logic unit 33 controlling the entire apparatus as described below.
  • each side of the cylinder 19 is connected to the oil side of a respective air/oil power transducer 25 and 26 via control valves 27, 28 and via flow modulating valves 29, 30, respectively, which make it possible to control with extreme precision the flow of oil in the hydraulic part of the circuit, and consequently the speed, accelerations and decelerations of the piston of the control cylinder 19.
  • the air side of each air/oil power transducer 25 and 26 is connected to the pressurised air source 14 vi a respective air feeding and venting valves 31, 32, as shown.
  • the apparatus is completed by a programmable logic unit or microprocessor 33 to which the solenoid valves 23 of the pneumatic connector element 15 and the actuating valves 27, 28, 29, 30, 31, 32, respectively, in addition to the pneumatic limit switchs 24' are connected via an electro-pneumatic signal transducer or interface 34.
  • the signal transducer 34 has the function to recognize the pneumatic signals of the device and to convert the electric signals emitted by the logic control unit 33, into corresponding pneumatic signals for operating the various valves.
  • connectors comprising male and fermale elements in which the end of a first male element, connected to a pressurised-fluid source, is introduced into the cavity of a second female element connected to an apparatus or to a point utilising the pressurised fluid.
  • These known systems require a high degree of positioning accuracy which can only be ensured using extremely complex and costly solutions which adversely affect the working cycle.
  • the use of mobile connectors, in place of stationary connection devices for simultaneously and/or selectively operate several apparatuses is extremely advantageous in that it reduces the number of connections required, resulting in considerable simplification from a design and functional point of view.
  • the connector device comprises the first movable element 15 and a set of second spaced apart elements 16, in which the element 15 is suitably supported by slider 17 and operated so as to move away from and towards each stationary element 16, as well as to displace along a linear path to be selectively positioned in respect to stationary connector elements 16.
  • the movable connector element 15 is supported by two pneumatic actuating cylinders 35, 36 so as to be moved towards and away from each fixed connector element 16; in turn, the assembly consisting of the movable connector element 15 and the actuating cylinders 35, 36 is mounted on the slider 17, so as to be moved along the previously referred path.
  • 37 denotes moreover a third pneumatic cylinder for pressing the front flate surface of the movable connector element 15 against the facing flate surface of a stationary connector element 16 so as to form an air-tight connection; however, it is obvious that, in place of the actuating cylinders 13, 14 and 16, any other solution or any other actuating device suitable for the proposed scope may be used.
  • the stationary connector element 16 is provided with one or more through-ducts 47 which, in the case of plate connector elements, as shown, open out on opposite flat surfaces 16a and 16b so as to be connected to a delivering head 11 and to a corresponding number of ducts 48 of the connector element 15 (figure 5), opening out towards the flat surface 15a facing the flat surface 16b of a stationary connector element 16, as shown.
  • the ducts 48 of the movable element 15 of the connector are connected to the pressurised-air source 14 via ducts 50 and the set of solenoid control valves 23, which may be actuated in succession or in a programmable manner, by unit 33.
  • the pneumatic connector elements 15 and/or 16 are provided moreover with air-tight means for ducts 47 and/or 48, as schematically shown in Figures 5 and 7 of the accompanying drawings.
  • said air-tight means are in the form of an annular gaskets or O-Rings 52 provided in a seat 53 on the flat surface 15a of the movable connector element 15.
  • Figures 7 and 8 of the accompanying drawings show a typical feature of the connector; if Figure 7 is compared with Figure 8, it can be seen that connection of ducts 47 and 48 is assured either when the exact alignment of said ducts occurs ( Figure 7) and when ducts 47 and 48 are slightly misaligned (figure 8), without affecting the correct operation and feeding of pressurised air. Thus precise positioning of the two connector elements is no longer requested, resulting in a high degree of functional and constructional simplification.
  • the connector device is also provided with suitable sensing means for controlling the position of the movable connector element 15, in respect of the fixed element 16.
  • these control means comprise plugging sensors 42, 43, 44 designed to cutt-of or allow the passage of a flow of pressurised air providing a pressure signal depending on the position assumed by the movable connector element 15 with respect to the stationary connector element 16.
  • a first plugging sensor may consist of a duct 44' opening on the flat surface 15a of the movable connector element 15 which duct, in the advanced condition of connector element 15, is plugged or closed by the flat surface 16b of the stationary element 16 when the movable connector element 15 has been moved up against the stationary element 16 so as to form an air-tight connection.
  • At least one stationary plugging sensor 42 may be provided on the side having the face 15b of connector element 15 which is opposite to the side 15a facing the connector element 16; a fluid duct 42' is therefore provided in the sensor 42, which is plugged or closed by the flat surface 15b in the retracted position of the element 15 ( Figure 4).
  • the plugging that is closing and opening of the ducts 42' and 44' interrupts or allows a flow of air which may be suitably sensed and interpreted as a signal indicating a correct positioning of the movable connector element 15; this will be now described in more detail with reference to Figure 4.
  • Figure 4 of the accompanying drawings shows the pneumatic circuit for the plugging sensors and the cylinders operating the connector device 15, 16.
  • the connector element 15 is connected to two double-acting cylinders 35, 36 so as to be moved from and towards a facing stationary connector element 16; the connector element 15, moreover, is pushed up, so as to formed a air-tight connection, against a stationary connector element 16 by a single-acting pneumatic cylinder 37.
  • the cylinders 35, 36 and 37 are connected to the pressurised air source 14 via flow regulators 38, 39, 40 and a slide valve 41 in the manner shown.
  • references 42, 43 and 44 denote moreover the pneumatic plugging sensors for controlling the advanced and retracted positions of the movable connector element 15 with respect to a stationary connector element 16; the plugging sensors 42 and 43 and the plugging sensor 44 are connected to the electro-pneumatic transducer 34 and respectively to the pressurised-air source 14 via throttling devices 45, 46 in which a main duct 45a and 46a is branched out to form a direct duct 45b, 46b connected to unit 34, and throttling duct 45c and 46c connected to the pressurised air source 14 via flow regulators and slide valve 41, as shown.
  • the working mode of the apparatus is described briefly below. It is assumed that the logic unit 33 has been programmed to control the metering and mixing of a certain quantities of substances in the container 22.
  • the direction of translational movement of the trolley 20 is determined by the logic unit 33 via opening of one of the two venting valves 31 and 32.
  • the starting signal is emitted by unit 33 so as to perform the translational movement of the carriage 20 in the prechosen direction, by operating the control valve 27 or 28 and the flow modulating valve 29 or 30, respectively, according to the desired direction of movement.
  • This latter valve controls the transfer of oil from the cylinder 19 to the air/oil power transducer 25, 26, and viceversa, which is located on the side towards which the slider 17 is performing its movement.
  • the logic unit 33 receives from the position transducer 24 informations relating to the position of the carriage 20 with respect to the delivering heads 11.
  • the logic unit 33 will correspondingly control modulation of the valve 27 or 28 so as to obtain the required acceleration, speed of translational movement and positioning.
  • the logic unit 33 will operate again the control valves 29, 30, 31 and 32 so as to stop the cylinder 19 ensuring that the trolley 20 is positioned, at a standstill, exactly underneath a required delivering head 11.
  • the sliding valve 41 will be actuated so as to supply pressurised air to the cylinders 35, 36 and 37 of the pneumatic connector element 15 which will be coupled with the respective stationary connector element 16 of the prechosen delivering head 11.
  • the movement of the connector element 15 towards the stationary connector element 16 will result in closure of the duct 44' of the pneumatic plugging sensor 44, thus interrupting the outflow of pressurised air.
  • This condition will be detected by the logic unit 33 as a signal that positioning and engagement of the connector elements 15 and 16 have been correctly performed.
  • the logic unit 33 will actuate the solenoid valves 23 in the desired sequence so as operate the valves 11', 11'' of the head 11 to pour into container 22 on the carriage 20.
  • the weighing device 21 on the trolley 20 will send a control signal to the logic unit 33, enabling it for a new metering step. Therefore the connector element 15 will be retracted until the plugging sensors 42, 43 provide the logic unit 33 with a disengagement signal, and the cylinder 19 will again be actuated so as to drive and position the trolley 20 supporting the receiving container 22, underneath a new prechosen delivering head 11. After the batching or delivering operation has been effected, the trolley 20 is moved to a delivery point for the container 22.
  • FIGS. 6 and 7 shown the use of a cavity or open chamber 47' on one 16 of the connector elements, to congiuntly connect one or more ducts of a connector element with one or more ducts of the other one 15 of said connector elements.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)
  • Fluid-Pressure Circuits (AREA)
EP92113334A 1991-09-17 1992-08-05 Apparat zum Abliefern und Messen von flüssigen Substanzen Withdrawn EP0537434A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI912450A IT1251482B (it) 1991-09-17 1991-09-17 Apparecchiatura per l'erogazione ed il dosaggio di sostanze allo stato sfuso
ITMI912450 1991-09-17

Publications (1)

Publication Number Publication Date
EP0537434A1 true EP0537434A1 (de) 1993-04-21

Family

ID=11360678

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92113334A Withdrawn EP0537434A1 (de) 1991-09-17 1992-08-05 Apparat zum Abliefern und Messen von flüssigen Substanzen

Country Status (5)

Country Link
EP (1) EP0537434A1 (de)
CN (1) CN1070624A (de)
BR (1) BR9203207A (de)
IT (1) IT1251482B (de)
MX (1) MX9205251A (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0769686A3 (de) * 1995-10-17 1998-04-15 LAWER S.p.A. Vorrichtung zum Entnehmen und Wiegen von Produkten wie Farbstoffe in Textilanlagen
ES2169957A1 (es) * 1998-07-17 2002-07-16 Ind Quimicas Kupsa S L Equipo para dosificar y mezclar componentes basicos, homogeneizados momentos antes de su dosificacion y mezcla.
WO2005120692A1 (en) * 2004-06-10 2005-12-22 Medical Dispensing Systems V.O.F. Method and arrangement for making up preparations
WO2006110036A1 (en) * 2005-04-13 2006-10-19 Medical Dispensing Systems B.V. Device for automatically filling product containers with a liquid comprising one or more medicines
ITMO20080218A1 (it) * 2008-08-08 2010-02-09 Dorotea Lucchese Procedimento tintometrico per la produzione di coloranti serigrafici per manufatti ceramici, particolarmente piastrelle, mattonelle, lastre e simili, e relativo impianto
WO2011061406A1 (en) * 2009-11-20 2011-05-26 Xemec Oy Paint mixing machine
US9302900B2 (en) 2011-06-21 2016-04-05 Fuell Process S.A. Colorant fluid dispensing system

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201537474U (zh) * 2009-03-27 2010-08-04 赵舜培 改进型油漆调配设备的测量装置
CN201537475U (zh) * 2009-03-27 2010-08-04 赵舜培 一种改进型油漆调配设备
US10294091B2 (en) * 2013-03-22 2019-05-21 Pepsico, Inc. Container filling system and valve for same
CN108871511B (zh) * 2018-06-29 2020-06-09 南京罕华流体技术有限公司 一种联动型工业流量精确计量方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3016167A1 (de) * 1980-04-26 1981-11-19 Basf Farben + Fasern Ag, 2000 Hamburg Verfahren zum dosieren von fluessigen komponenten und vorrichtung zur durchfuehrung des verfahrens
JPS63274440A (ja) * 1987-05-07 1988-11-11 Fuji Photo Film Co Ltd 液体．粉体計量混合装置
JPS63283732A (ja) * 1987-05-14 1988-11-21 Fuji Photo Film Co Ltd 液体・粉体計量混合装置
EP0344521A2 (de) * 1988-06-01 1989-12-06 AZO GmbH & Co Vorrichtung zum Zusammenführen rieselfähiger Materialkomponenten zu einer Mischung
EP0351681A1 (de) * 1988-07-21 1990-01-24 Henkel Kommanditgesellschaft auf Aktien Anlage zur Dosierung und Mischung unterschiedlicher Stoffe, insbesondere zur Erzeugung von Parfüms

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3016167A1 (de) * 1980-04-26 1981-11-19 Basf Farben + Fasern Ag, 2000 Hamburg Verfahren zum dosieren von fluessigen komponenten und vorrichtung zur durchfuehrung des verfahrens
JPS63274440A (ja) * 1987-05-07 1988-11-11 Fuji Photo Film Co Ltd 液体．粉体計量混合装置
JPS63283732A (ja) * 1987-05-14 1988-11-21 Fuji Photo Film Co Ltd 液体・粉体計量混合装置
EP0344521A2 (de) * 1988-06-01 1989-12-06 AZO GmbH & Co Vorrichtung zum Zusammenführen rieselfähiger Materialkomponenten zu einer Mischung
EP0351681A1 (de) * 1988-07-21 1990-01-24 Henkel Kommanditgesellschaft auf Aktien Anlage zur Dosierung und Mischung unterschiedlicher Stoffe, insbesondere zur Erzeugung von Parfüms

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 13, no. 107 (C-576)(3455) 14 March 1989 & JP-A-63 283 732 ( FUJI ) *
PATENT ABSTRACTS OF JAPAN vol. 13, no. 95 (C-573)(3443) 6 March 1989 & JP-A-63 274 440 ( FUJI ) *

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0769686A3 (de) * 1995-10-17 1998-04-15 LAWER S.p.A. Vorrichtung zum Entnehmen und Wiegen von Produkten wie Farbstoffe in Textilanlagen
ES2169957A1 (es) * 1998-07-17 2002-07-16 Ind Quimicas Kupsa S L Equipo para dosificar y mezclar componentes basicos, homogeneizados momentos antes de su dosificacion y mezcla.
WO2005120692A1 (en) * 2004-06-10 2005-12-22 Medical Dispensing Systems V.O.F. Method and arrangement for making up preparations
WO2006110036A1 (en) * 2005-04-13 2006-10-19 Medical Dispensing Systems B.V. Device for automatically filling product containers with a liquid comprising one or more medicines
ITMO20080218A1 (it) * 2008-08-08 2010-02-09 Dorotea Lucchese Procedimento tintometrico per la produzione di coloranti serigrafici per manufatti ceramici, particolarmente piastrelle, mattonelle, lastre e simili, e relativo impianto
WO2010015925A2 (en) * 2008-08-08 2010-02-11 Rowol Consulting S.R.L. Tintometric system for the production of silk-screening colorants for ceramic products, particularly tiles, bricks, slabs and the like
WO2010015925A3 (en) * 2008-08-08 2010-04-01 Rowol Consulting S.R.L. Tintometric system for the production of slik-screening colorants for ceramic products, particularly tiles, bricks, slabs and the like.
WO2011061406A1 (en) * 2009-11-20 2011-05-26 Xemec Oy Paint mixing machine
US8905087B2 (en) 2009-11-20 2014-12-09 Xemec Oy Paint mixing machine
US9302900B2 (en) 2011-06-21 2016-04-05 Fuell Process S.A. Colorant fluid dispensing system

Also Published As

Publication number Publication date
IT1251482B (it) 1995-05-15
ITMI912450A1 (it) 1993-03-17
CN1070624A (zh) 1993-04-07
ITMI912450A0 (it) 1991-09-17
BR9203207A (pt) 1993-04-13
MX9205251A (es) 1994-06-30

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