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WO1992002787A1 - Procede et dispositif pour le remplissage volumetrique de recipients avec des milieux coulants - Google Patents

Procede et dispositif pour le remplissage volumetrique de recipients avec des milieux coulants Download PDF

Info

Publication number
WO1992002787A1
WO1992002787A1 PCT/DE1991/000637 DE9100637W WO9202787A1 WO 1992002787 A1 WO1992002787 A1 WO 1992002787A1 DE 9100637 W DE9100637 W DE 9100637W WO 9202787 A1 WO9202787 A1 WO 9202787A1
Authority
WO
WIPO (PCT)
Prior art keywords
filling
volume
time
tube
level
Prior art date
Application number
PCT/DE1991/000637
Other languages
German (de)
English (en)
Inventor
Wolfgang Schröder
Original Assignee
Schroeder Wolfgang
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 Schroeder Wolfgang filed Critical Schroeder Wolfgang
Publication of WO1992002787A1 publication Critical patent/WO1992002787A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D1/00—Apparatus or devices for dispensing beverages on draught
    • B67D1/08—Details
    • B67D1/12—Flow or pressure control devices or systems, e.g. valves, gas pressure control, level control in storage containers
    • B67D1/1202—Flow control, e.g. for controlling total amount or mixture ratio of liquids to be dispensed
    • B67D1/1234—Flow control, e.g. for controlling total amount or mixture ratio of liquids to be dispensed to determine the total amount
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B3/00—Packaging plastic material, semiliquids, liquids or mixed solids and liquids, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B3/26—Methods or devices for controlling the quantity of the material fed or filled
    • B65B3/34—Methods or devices for controlling the quantity of the material fed or filled by timing of filling operations
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F13/00—Apparatus for measuring by volume and delivering fluids or fluent solid materials, not provided for in the preceding groups
    • G01F13/006—Apparatus for measuring by volume and delivering fluids or fluent solid materials, not provided for in the preceding groups measuring volume in function of time
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
    • G01F25/0092—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume for metering by volume

Definitions

  • the invention relates to a method for the flow-controlled, viscosity-independent and volume-metered filling of flowable media into vessels and a device for carrying out the method.
  • the disadvantage of this feed rate-controlled filling machine is its time-dependent filling programs.
  • the time dependence of filling i.e. H.
  • the pre-setting of the filling time leads to dosing errors in the case of already slight fluctuations in the viscosity, which have to be corrected either by constant adjustment of the filling time or by an additionally integrated scale, with the aid of which the filled quantities for the following vessels are corrected.
  • the complex adjustment of the time program begins again until the required quantities are set again.
  • the invention has for its object a method and a device for the flow-controlled, viscosity-independent and volume-metered pouring of flowable media into vessels with which, by means of continuous compensation of viscosity influences and non-contact measurement of a comparative volume, a precisely volume-filled filling of the vessels takes place, which furthermore results in the utility properties of the device, especially in relation to one high dosing accuracy can be improved taking into account the existing properties of the media.
  • the object is achieved in that the time for filling the volume of a filling tube is measured and brought into a time-determined relationship in comparison with the volume of a vessel.
  • the time divided as a time unit for filling the filling tube, is set starting at the start of filling and ending when the medium exits the filling tube.
  • the invention is designed in that the base for filling the volume of the filling pipe by an overflow arrangement
  • Level container is always kept constant, whereby according to a form of the invention, the time units are classified as time cycles.
  • the invention is visibly further developed in that the quotient of the vessel volume and filling tube volume is multiplied by the time cycles and the filling volume is thus determined.
  • the total volume of a filling is determined according to the invention from the quotient of the container and filling tube volume multiplied by the time intervals for filling the filling tube volume.
  • One embodiment of the invention is when the viscosity is determined in a calibration tube arranged separately and parallel to the filling tube. All movement processes of the vessels are detected by the position sensor and the measuring processes of the control signal in the control device, arranged and output in a controlled manner via the output signal.
  • the invention is formed in that a level container is arranged in a buffer container. This is connected to a pump by a pipe.
  • Another pump arranged outside the level container at the bottom of the buffer container ensures a constant filling level by constantly overfilling the level container.
  • the filling medium in the buffer container is kept in a constant cycle at the same time.
  • a barrier formed by sensors is provided, which is connected to a control device via a control signal.
  • the barrier is provided in front of a switching amplifier by means of an output signal and is connected in an amplifying manner to the pump, the control device being operatively connected to a position sensor via a control signal.
  • the pump in the buffer tank is connected to the level tank on the pressure side. Your suction side protrudes into the buffer tank.
  • the circuit of the filling medium is provided over the upper edge of the level container and the pressure side of the pump.
  • control signal of the position sensor and the control signal of the light barrier are connected with the control device at different times, reacting one after the other.
  • One form of practice is that two sensors are arranged one above the other in the filling tube in a certain section, a certain filling volume being determined at the same time by the section between the two sensors.
  • Another form of the invention is designed so that in the filling tube a sensor is arranged and is operatively connected to the sensor at the outlet of the filling tube, wherein in an arrangement variant of the invention the sensor in the filling tube is arranged above the level of the medium in the level container.
  • the solution according to the invention has the advantage of assigning a level container in a filling container with controlled product supply, which is filled by a centrifugal pump arranged in the filling container.
  • the level container in which the metering pump is arranged overflows constantly.
  • the metering pump advantageously a centrifugal pump, is connected on its pressure side to an ascending filling tube, which is designed in such a way that its surfaces pointing downwards at the spout are shorter than the front edge of the filling tube, the surfaces always pointing upwards having.
  • material residues running down are always returned from the lower edge of the spout of the filling tube into the filling tube, and dripping is largely avoided.
  • the filling start advantageously takes place constantly from the same level. If the filling tube volume is measured and used as a standard, it is only necessary to exactly record the filling start and the filling outlet.
  • the time between a filling start and a product discharge is saved. This advantageously records the volume that passes through the filling tube in a certain time.
  • the number of times the filling tube volume has to be emptied into the vessel to be filled has been entered into the control system, then it is only necessary to enter the corresponding multiplier during the actual dosing.
  • the time that passes between the start of filling and the discharge of the filling material from the filling tube recorded exactly and multiplied by the previously entered setpoint value.
  • the filling flow-controlled filling process is thus independent of the preset time.
  • Fig. 3 the design and arrangement of the buffer tank
  • Fig. 4 another embodiment of the arrangement for measuring the filling time: the filling pipe.
  • the device has a buffer container 12 for receiving tixotropic media, in which a level container 11 is arranged.
  • a level container 11 In the buffer tank 12 there is an overflow upstream of the level tank 11. running pump 4 provided.
  • the level container 11 also has a metering pump 3, to which a filling pipe 7 is adapted. This filling tube 7 rises at the metering pump 3 and is designed at the outlet so that the downward-facing surfaces of the outlet are shorter than the front lower edge of the filling tube 7, which always has upward-facing surfaces.
  • the grommet 14 of the filling tube 7 is operatively connected to the light beam from a light transmitter 5, the beam of which is accepted by a light receiver 6, which is connected to a control device 8 and receives the control signals 13 of the light receiver 6.
  • a position sensor 10 is arranged on a conveyor belt, not shown, and is likewise brought into an operative connection with the control device 8 via a control signal 9, the control device 8 being connected to a switching amplifier 1 via an output signal 2.
  • the switching amplifier 1 is sensitized by the control signal 2 and connected directly to the metering pump 3.
  • the design of the outlet of the filling pipe 7 in the spout area is explained for the functional process.
  • the spout 14 of the filling pipe 7 is designed in accordance with the requirements of non-dripping filling.
  • the inclination of the spout bottom is designed to be slightly different from the vertical filling pipe 7.
  • the spout bottom protrudes and the further spout area is designed to flee backwards. Due to the steep spout bottom protruding from the spout area, filling medium remaining in the filling pipe 7 does not run out of the spout 14 but back into the filling pipe 7.
  • At the outlet end of the filling tube 7 is horizontally z.
  • the beam path from sensor 5 to sensor 6 runs in front of the filling tube and is set up in such a way that sensor 6 is covered when the filling material emerges from the filling tube.
  • the cycle counter that was started at the start of filling is stopped and the determined cycles are stored in the control device.
  • the total filling time t n is determined in the control device from the determined cycles for filling the filling tube 7, which corresponds to a precisely known volume Vp and the entered vessel volume Vg.
  • the control device 8 It is determined in the control device 8 how often the counted cycles for filling the filling tube have to be repeated in order to fill the entered vessel volume.
  • the time correction Kp that is to say the time which elapses until the delivery speed of the metering pump 3, has to be subtracted from the counted cycles before they are processed in the control device 8. This time correction Kp is a constant variable.
  • the arrangement of the buffer container 12 shown in FIG. 3 is provided.
  • the filling medium is fed into the buffer container 12, which fills it up to a filling level to be shown in more detail.
  • a level tank 11 is fastened to the bottom of the buffer tank 12 and a pump 4 connected to it by a tube is provided, which pumps the medium in the level tank 11.
  • the level container 11 has a lower height than the buffer container 12 and is filled by the pump 4 so that the filling medium from the level container 11 constantly overflows. This means that the same initial level of the filling medium is constantly present for the pump 3 located in the level container 11 and uniform dosing is possible.
  • the pump 3 delivers after a switching pulse of the switching amplifier 1 the filling medium up through the filling pipe to the spout 14.
  • the position sensor 10 sends a control signal 9 to the control device 8.
  • the position sensor 10 is located in the region of a conveyor belt (not shown) which is filled with containers.
  • a second control signal, not shown, causes the conveyor belt to stop.
  • the control device 8 issues a control command to the switching amplifier 1.
  • the metering pump 3 is controlled directly by the switching amplifier 1.
  • the filling start "metering pump 3 on” is detected by simultaneously starting a counter integrated in the control device 8.
  • the filling beam emerges from the spout 14 of the filling pipe 7, the light beam between the sensors 5; 6 interrupted.
  • the counted bars corresponding to a certain time, are saved. From the determined time, an independent total time necessary for filling the container is determined in the control device 8.
  • the total time for filling the vessel is based on the formula
  • VQ vascular volume
  • the control command 2 is canceled by the control device 8.
  • the switching amplifier 1 switches off the metering pump 3.
  • the conveyor belt is started and a newly arriving vessel can be filled again. So that the volume of the filling tube 7 does not change, the level container 11 is arranged in the buffer container 12.
  • the level container 11 is constantly filled by the overflow pump 4 so that it overflows.
  • the level in the buffer tank 12 is regulated by a level control (not shown), which in the simplest case can be a float control, in such a way that the level in the buffer tank 12 is always lower than the level of the level tank 11 Dosing pump 3 always promotes from the same starting level.
  • the filling time for the filling tube is not measured exactly.
  • two sensors 16; 17 arranged one above the other, which detect the passage of the product front in the filling pipe between the two sensors. From the distance between the sensors and the cross-sectional area of the filling tube, the filling flow is determined in the control device 8 and from this the filling time for the vessel to be filled is determined according to the type of filling already described.
  • the sensors 5; 6 designed as a light transmitter and receiver are arranged horizontally. This prevents filling material from possibly dripping out of the filling pipe to contaminate the sensors 5; 6 leads. These sensors are expediently arranged in such a way that the beam path between the light transmitter and the light receiver runs without a recognizable distance from the spout end. Instead of the sensor 5 designed as a light transmitter and receiver; 6, a capacitive proximity sensor can also be used, which detects the media outlet directly on the spout connector. After the start of the filling program, which is triggered by the presence of a container, media are filled that have no tixotropic properties and do not tend to settle or separate. If the level is kept constant by constantly filling the level container 11, if, according to FIG. 4, two sensors 16; 17 are arranged one above the other, which detect the passage of the product front in the filling tube 7 between the two sensors.
  • the distance between the sensors 16; 17 from each other and the cross-sectional areas of the filling tube 7 in the control device 8 from the chronological sequence of the signal from the sensors 16; 17 the volume flow is determined and from this the filling time t n for the vessel to be filled is determined in accordance with the embodiment already described.
  • control device 8 is only started when the pump is already pumping.
  • only one sensor 16 is arranged above the liquid level of the level container 11. The incoming filling material is started by the sensor 16, the counter integrated in the control device 8 and by interrupting the beam path between the sensors 5; 6 the clock counter is stopped and the determined clocks are stored in the control device.
  • the total filling time is determined in the control device from the ascertained cycles for filling the filling pipe section, which corresponds to a precisely determined volume, and the entered vessel volume.
  • the total time for filling the vessel is calculated according to the formula
  • the senor 16 triggers the feed flow generated by the metering pump 3 and is connected to the sensors 5; 6 in an operative connection via the control device 8.

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)

Abstract

La présente invention se rapporte à un procédé et un dispositif pour le remplissage à débit contrôlé, indépendant de la viscosité et volumétrique de récipients avec des milieux coulants. Selon l'invention, le temps nécessaire pour le remplissage du volume d'un tube de remplissage est mesuré et établi en fonction du temps en comparaison avec le volume d'un récipient à remplir. L'invention présente un dispositif possédant un tube de remplissage (7) dans lequel un liquide de remplissage est mesuré entre des capteurs (5; 6; 16; 17) et mis en relation dans un rapport quantité-temps avec le volume d'un récipient par l'intermédiaire d'un dispositif de commande (8).
PCT/DE1991/000637 1990-08-07 1991-08-06 Procede et dispositif pour le remplissage volumetrique de recipients avec des milieux coulants WO1992002787A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DD34328490A DD297123B5 (de) 1990-08-07 1990-08-07 Verfahren und Einrichtung zum dosierten Einfuellen fliessfaehiger Medien in Gefaesse
DDAPB65B/343284/3 1990-08-07

Publications (1)

Publication Number Publication Date
WO1992002787A1 true WO1992002787A1 (fr) 1992-02-20

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ID=5620169

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1991/000637 WO1992002787A1 (fr) 1990-08-07 1991-08-06 Procede et dispositif pour le remplissage volumetrique de recipients avec des milieux coulants

Country Status (2)

Country Link
DD (1) DD297123B5 (fr)
WO (1) WO1992002787A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996026110A1 (fr) * 1995-02-22 1996-08-29 Afuema Abfüllmaschinen Gmbh Procede de reglage d'un jet de remplissage
WO1996026111A1 (fr) * 1995-02-22 1996-08-29 Afuema Abfüllmaschinen Gmbh Procede et dispositif de dosage de substances coulantes
FR2735862A1 (fr) * 1995-06-21 1996-12-27 Henkel Ecolab France Dispositif de mesure d'une quantite de liquide
WO1997016265A1 (fr) * 1995-10-27 1997-05-09 Alfa Laval Agri Ab Nettoyage des cuves de stockage de lait
EP1447329A1 (fr) * 2003-02-17 2004-08-18 Endress + Hauser Flowtec AG Procédé et dispositif pour la distribution de produits fluides
US6804985B2 (en) * 2001-01-10 2004-10-19 Mettler-Toledo Gmbh Calibration apparatus for multi-channel pipettes, including a transport device for receptacles

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19725908C2 (de) * 1997-06-13 2002-08-14 Afuema Abfuellmaschinen Gmbh Verfahren und Vorrichtung zum Dosieren fließfähgiger Medien

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2510749A1 (fr) * 1981-07-31 1983-02-04 Noviloire Sa Procede et dispositif permettant de prelever un liquide stocke dans un recipient reservoir et d'en delivrer une quantite determinee en vue de son utilisation et installation de dosage equipee d'un tel dispositif
US4460026A (en) * 1982-02-16 1984-07-17 Hurley Byron H Liquid filling apparatus and method
DE3822246A1 (de) * 1988-07-01 1990-01-04 Bauknecht Hausgeraete Dosiereinrichtung fuer fluessigkeiten
EP0426266A1 (fr) * 1989-10-30 1991-05-08 ABCC/TechCorp. Dispositif de distribution de sirop

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2510749A1 (fr) * 1981-07-31 1983-02-04 Noviloire Sa Procede et dispositif permettant de prelever un liquide stocke dans un recipient reservoir et d'en delivrer une quantite determinee en vue de son utilisation et installation de dosage equipee d'un tel dispositif
US4460026A (en) * 1982-02-16 1984-07-17 Hurley Byron H Liquid filling apparatus and method
DE3822246A1 (de) * 1988-07-01 1990-01-04 Bauknecht Hausgeraete Dosiereinrichtung fuer fluessigkeiten
EP0426266A1 (fr) * 1989-10-30 1991-05-08 ABCC/TechCorp. Dispositif de distribution de sirop

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996026110A1 (fr) * 1995-02-22 1996-08-29 Afuema Abfüllmaschinen Gmbh Procede de reglage d'un jet de remplissage
WO1996026111A1 (fr) * 1995-02-22 1996-08-29 Afuema Abfüllmaschinen Gmbh Procede et dispositif de dosage de substances coulantes
AU692717B2 (en) * 1995-02-22 1998-06-11 Afuema Abfullmaschinen Gmbh Process and device for dosing free-flowing media
US5787943A (en) * 1995-02-22 1998-08-04 Afuema Abfuellmaschinen Gmbh Rosslau Process and device for dosing free-flowing media
US5794668A (en) * 1995-02-22 1998-08-18 Afuema Abfuellmaschinen Gmbh Rosslau Filling stream adjusting process
AU697630B2 (en) * 1995-02-22 1998-10-15 Afuema Abfullmaschinen Gmbh Procedure for adjusting a filling jet
FR2735862A1 (fr) * 1995-06-21 1996-12-27 Henkel Ecolab France Dispositif de mesure d'une quantite de liquide
WO1997016265A1 (fr) * 1995-10-27 1997-05-09 Alfa Laval Agri Ab Nettoyage des cuves de stockage de lait
US6102052A (en) * 1995-10-27 2000-08-15 Alfa Laval Agri Ab Milk storage tank cleaning
US6804985B2 (en) * 2001-01-10 2004-10-19 Mettler-Toledo Gmbh Calibration apparatus for multi-channel pipettes, including a transport device for receptacles
EP1447329A1 (fr) * 2003-02-17 2004-08-18 Endress + Hauser Flowtec AG Procédé et dispositif pour la distribution de produits fluides

Also Published As

Publication number Publication date
DD297123B5 (de) 1994-08-11

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