EP2490949A1 - Tête de buse et machine de remplissage ainsi équipée - Google Patents

Tête de buse et machine de remplissage ainsi équipée

Info

Publication number
EP2490949A1
EP2490949A1 EP10825276A EP10825276A EP2490949A1 EP 2490949 A1 EP2490949 A1 EP 2490949A1 EP 10825276 A EP10825276 A EP 10825276A EP 10825276 A EP10825276 A EP 10825276A EP 2490949 A1 EP2490949 A1 EP 2490949A1
Authority
EP
European Patent Office
Prior art keywords
nozzle head
nozzle
package
channel
filling
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
EP10825276A
Other languages
German (de)
English (en)
Other versions
EP2490949B1 (fr
EP2490949A4 (fr
Inventor
Lasse Andersen
Stefan Sollerhed
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.)
Tetra Laval Holdings and Finance SA
Original Assignee
Tetra Laval Holdings and Finance SA
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 Tetra Laval Holdings and Finance SA filed Critical Tetra Laval Holdings and Finance SA
Publication of EP2490949A1 publication Critical patent/EP2490949A1/fr
Publication of EP2490949A4 publication Critical patent/EP2490949A4/fr
Application granted granted Critical
Publication of EP2490949B1 publication Critical patent/EP2490949B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • B65B3/22—Defoaming liquids in connection with filling
    • 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
    • B65B39/00—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers
    • B65B39/001—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers with flow cut-off means, e.g. valves
    • B65B39/004—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers with flow cut-off means, e.g. valves moving linearly
    • 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
    • B65B39/00—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers
    • B65B2039/009—Multiple outlets

Definitions

  • the present invention relates to a nozzle head, in particular to a nozzle head suitable for filling liquids prone to foam and splash into packages having a rounded bottom surface.
  • a related problem is splashing, where the jets of injected liquid impinges on the walls of the package or into the liquid contained in the package, and causes liquid to splash out of the package. Both problems are aggravated by filling rate and distance between nozzle head and package, and they are coupled in that increased foam generation results in decreased splashing, the foam acting as a splash damper absorbing droplets.
  • the present applicant has revealed that the problems are particularly severe for a certain type of package, namely the so called carton bottle which is comprised of a cylindrical sleeve made of packaging laminate and a plastic top connected to the laminate sleeve at one end thereof.
  • the plastic top comprises a neck either closed by a membrane or a cap covering the pouring opening of the carton bottle, and generally has curved shoulders.
  • a carton bottles is manufactured with an open bottom to enable, inter alia, filling from the bottom when the carton bottle is in an upside-down condition. After filling the bottom of the carton bottles is sealed and formed into the desired shape.
  • the filling is done in a number of steps wherein a predetermined partial volume of the product to be packed is filled in every step.
  • the first filling step may result in an undesirable amount of product splashing as a result of the filling jets hitting the inside of the membrane or cap closing the neck, if a standard filling nozzle injecting the product straight into the package is used. After the jets hit the membrane or cap they turn upwards maintaining almost the same speed which results in the splashing, and also foaming. This may be compared with a classic package having a right angled shoulder, which is less efficient when it comes to reversing the momentum of the injected liquid, and this is less prone to splashing.
  • a known solution regarding reduction of foaming and splashing is to direct the flow of injected liquid towards the interior side walls of the package. This is accomplished by using a nozzle head having several nozzle openings guiding the injected liquid towards the walls of the package. In this way the flow may be guided by the walls and enter the liquid already present in the package with a weaker tendency of admixing air into it, and since direct impacts with one end of the container is avoided splashing will also decrease.
  • a nozzle head having several nozzle openings guiding the injected liquid towards the walls of the package.
  • the flow may be guided by the walls and enter the liquid already present in the package with a weaker tendency of admixing air into it, and since direct impacts with one end of the container is avoided splashing will also decrease.
  • the invention is directed towards further improving prior art in relation to filling of a package, for example a carton bottle of the described type.
  • a problem emanating from foaming and, in particular, splashing is the buildup of material around the nozzle openings.
  • the material emanates from the product, and may cause problems in the ability of the nozzle openings to perform adequately. Even if the nozzle opening itself is not directly affected, a buildup near the opening may affect the jet of liquid by guiding it differently, affecting its divergence etc.
  • the instable jets will in turn generate further problems, which are to be discussed. This has a direct adverse effect in the controllability, yet it also will affect the performance of a nozzle head and may cause neighboring jets to interfere with each other, also resulting in poor performance.
  • the present invention provides a problem to this and other drawbacks existing in prior art.
  • the inventive nozzle head is defined in claim 1, and the
  • Fig. 1 is a slightly off-center cross section of a device comprising the nozzle head of one embodiment of the present invention.
  • Fig. 2 is a side view of a nozzle head according to one
  • Fig. 3 is a top view of the nozzle head of Fig. 2.
  • Fig. 4 is a sectional view along the line IV-IV of Fig. 3.
  • Fig. 5 is a sectional view along the line V-V of Fig. 3.
  • Fig. 6 is a schematic side view of a filling station comprising a filling nozzle according to one embodiment of the present invention.
  • Fig. 7 is a cross section of a nozzle head according to a one embodiment of the present invention.
  • Fig 8 is a fold out view illustrating a cooling arrangement according to one embodiment of the present invention. Description of Embodiments
  • Fig. 1 is a partial cross sectional view of a filling assembly 1 including a nozzle head 2 according to a first embodiment of the present invention.
  • the filling assembly 1 is attached to a dish box 4 to form a filling unit 5.
  • the illustrated assembly is part of a filling station of a filling machine or packaging machine for filling pourable food stuff into packaging containers.
  • the packaging containers have been sterilized prior to filling, and maintenance of aseptic conditions until the packaging containers have been filled is a paramount issue in this context.
  • the filling unit with its large interior surface area therefore has to be cleaned and sterilized on a regular basis. If the unit is arranged in an aseptic environment, the cleaning and sterilization should preferably be performed without disturbance of the aseptic conditions.
  • the dish box 4 a portion of which is shown in Fig. 1, comprises vertical through holes 6, in which the nozzle head 2 may be inserted with a clearance.
  • the through holes 6 may comprise a first portion having a first diameter, followed by a second portion having another diameter, i.e. the opening 12 in the dish box, to be described.
  • the dish box 4 also comprises a horizontal channel 8, interconnecting all vertical through holes 6. Not shown in the drawing are blocking means that may be controlled to seal the openings 12 of the dish box 4 from below.
  • the pourable product have to pass these openings 12 in order to reach the packaging container below, and by sealing off the openings 12 the filling station may be separated from the rest of the filling machine.
  • the openings 12 are as small as possible. Also, smaller opening 12 enables a smaller distance between adjacent filling
  • the filling unit 5 may be cleaned, sterilized by pressurized steam or by other means, flushed etc, without affecting the rest of the filling machine.
  • the filling assembly 1 and still referring to Fig. 1, it comprises a housing 14 having an inlet 16 for the pourable product.
  • a rod 18 is arranged centrally and controlled by a servomotor to move up and down. The servomotor enables maximal controllability and adjustability, yet other drive means are also possible.
  • a resilient membrane 20 separates the product containing portions of the filling assembly 1 from the rest.
  • a throttle device 22 is arranged on the rod 18 and cooperates with a bulge 24 of the housing 14 to provide a seal in a closed position. Portions of the circumference of the throttle device 22 are recessed, such that the flow may be controlled with improved accuracy as the throttle device 22 moves towards an open position (upwards). In such an instance channels with increasing diameter may be formed between the throttle device 22 and the bulge 24 before the throttle device 22 is moved enough to loose contact with the bulge 24 completely.
  • a valve cone 26 is arranged at the distal end of the rod 18 . In this
  • valve cone 26 comprises a body of stainless steel overmoulded with silicone.
  • the side of the valve cone 26 facing downwards is essentially planar but for a central recess 28.
  • a rim 30 surrounding the recess 28 is arranged to provide a seal towards inlets 32 in the nozzle head 2, via the silicone coating.
  • the central recess 28 is in fluid communication with a volume above the valve cone 26 by means of at least one passage 34. This prevents the occurrence of vacuum as the valve cone 26 is raised, which could affect the
  • the passage or passages 34 are preferably located at an uppermost location of the recess 28.
  • One further effect of the passage 34 and the central recess 28 is that as the flow of product enters the inlets 32 from more than one direction. As a result the flow through the channel will be more well-defined, and in that way the passage 34 also assists in reducing foaming and splashing.
  • This methodology may also be advantageously used for other applications than the present embodiment, or even invention. It may e.g. be utilized in a nozzle assembly having the corresponding or even the same construction as the present invention upstream of the inlets 32. such construction may have more than one set of inlets 32, such that e.g. there are two sets of inlets distributed around the center of the nozzle head at two different radii. In such a situation the above construction will result in that the product may reach the two sets of inlets simultaneously, resulting in a well-defined and even output of fluid from the nozzle head.
  • the present invention therefore also relates to a valve cone constructed in accordance with the above description, and sucha valve combined with a nozzle head having more than one set of inlets, as well as to a valve assembly including the two.
  • a valve cone constructed in accordance with the above description, and sucha valve combined with a nozzle head having more than one set of inlets, as well as to a valve assembly including the two.
  • the valve cone may e.g. also be designed as a series of interconnected concentric ring structures, interconnected by material bridges. The ring structures are then used to cover the inlets and the recess and the passage will then by defined as the volume between the rings.
  • a person skilled in the art will realize that the shape and position of the "rings" will be defined by the arrangement of the inlets. Generalizing this aspect of the invention even further, it therefore represents a valve cone having an outer perimeter where it is
  • valve cone being
  • the nozzle head 2 has several through holes or channels 10 arranged to guide the pourable product from the upper to the lower side of the nozzle head 2.
  • the through holes 10 are straight channels, yet since the cleaning is performed by injecting a fluid through the through holes they may also have a more complicated shape.
  • Each nozzle outlet 36 is arranged to direct a jet of pourable product towards the wall of a packaging container arranged below the openings 12 of the dish box 4 (see Fig. 3), the constraint being that the jets have to pass through the opening 12 without interaction. For several reasons already mentioned it is desired to keep the diameter of the openings 12 as small as possible. It is crucial that the jets remain separated from each other, since they will divert significantly if not.
  • each lip 36 preferably ends with a sharp rim.
  • the arrangement of the lips 36 reduced the occurrence of diverging jets to the point where this does not limit the operative time between cleaning. It is believed that the sharp rim enhances the beneficial properties of the lip 36, since the risk of material build-up decreases.
  • the ratio between the width of the rim and the diameter of the orifice may be in the order of 0.05-0.2, preferably 0.05-0.1.
  • a thinner rim is generally more difficult to produce and less durable.
  • a rim having a width of about 0.4-1.6 mm, preferably 0.4-0.8 mm, which may be relevant dimensions for the orifice of one or more embodiments of the present invention.
  • the use of a nozzle head 2 having a smooth exterior design, without any crevices etc. is beneficial since it provides a surface which is relatively easy to clean and sterilize.
  • a nozzle head having crevices and such would be unsuitable for the purposes of the invention.
  • One benefit with the present invention and embodiments thereof is that it may be used to fill packages without moving the packages vertically, towards the filling nozzle.
  • FIG. 5 illustrates how close the through holes 10 are, in particular in the center of the nozzle head 2. It has been mentioned that the through holes 10 may have another shape, yet the rectilinear shape simplifies production of the nozzle head 2.
  • the nozzle head 2 also includes flanges for fastening and recesses for
  • Fig. 2 is a side view of a nozzle head 2 according to one
  • Fig. 3 is a top view of the nozzle head of Fig. 2, showing the inlets 32.
  • the cross sections of Fig. 4 and 5 illustrate the path of the through holes 10 through the nozzle head 2.
  • Fig. 6 illustrates a portion of a filling station 38 in a filling machine, in which a filling assembly 1 is arranged. It should be noted that the number and configuration of the filling assemblies could differ from what is disclosed in Fig.6 without departing from the scope of the present invention as defined by the appended claims, e.g. one filling station could comprise more than one filling assembly, and the additional filling assemblies would not have to utilize the present invention.
  • packaging containers 40 are filled with pourable product 42.
  • the packaging containers 40 have an open bottom end, facing upwards, and the shape of the shoulders and opening device at the other end make them prone to induce splashing and foaming if a flow of pourable product is directed directly towards that region.
  • the packaging containers are moved intermittently between filling units in a machine direction MD.
  • the risk of splashing and foaming is greatest when filling pourable product 42 into an empty packaging container 40, which is why a nozzle head 2 according to one embodiment of the present invention is arranged to fill the pourable product 42 into the empty packaging container 40.
  • the number of filling units, time at each filling unit, etc. is also defined by the process upstream the filling station, such as preheating, sterilization, and venting.
  • the nozzle will be arranged in an area which is heated and in which a significant flow of (dry) air prevails. Under these circumstances there may be a risk for product to build up in the channels 10, or in the nozzle outlets 36. This will deteriorate the properties if the nozzle, and thus measures may have to be taken to avoid this build up.
  • the inventive nozzle is provided with a cooling jacket 44, as shown in Fig. 7.
  • the cooling jacket 44 is arranged outside of the nozzle head 2 and a cooling fluid, e.g. cooling water is allowed to flow through an annular slit 46 between the nozzle head 2 and the cooling jacket 44.
  • a cooling channel 48 (see Fig. 8) is defined in the annular slit 46 by means of flanges 50 (Fig. 8) on the nozzle head 2.
  • the flanges 50 extend radially outwards towards the cooling jacket 44 and the construction is readily understandable from studying the fold-out view of Fig. 8, in which the circumference of the nozzle has been parted between the cooling water inlet 45 and the cooling water outlet 47, and laid flat.
  • the flanges 50 extend from an upper part of the annular slit 46 created between the cooling jacket 44 and the nozzle head 2, to a lower part thereof.
  • the length of each flange 50 is smaller than the height of the annular slit 46, such that a fluid passage may be created above and/or below the flange 50.
  • a smaller passage 54 is arranged in an opposite relationship to the main passage 52 and thus a "shortcut" will be created, such that a flow of cooling fluid may be arranged to flow into corners where there otherwise would be a risk for the flow to stagnate. A stagnated flow, without significant exchange of cooling fluid, would act detrimentally on the cooling efficiency.
  • the task of dimensioning the main passage and the smaller passage in order to achieve an adequate flow is a task which is readily solved by the skilled person. The flow is illustrated by the larger and smaller arrows indicated in Fig. 8.
  • inventive idea of arranging lips around the nozzle outlets is not limited to the described shape or path of the through holes, neither to the number of through holes provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Supply Of Fluid Materials To The Packaging Location (AREA)
  • Basic Packing Technique (AREA)
  • Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)

Abstract

L'invention concerne une tête de buse pour remplir un emballage de liquide, permettant de réduire au minimum les éclaboussures et le moussage, mais aussi de conduire le remplissage de l'emballage en liquide alors que ladite tête est placée au-dessus de l'emballage. Cette tête comprend une surface supérieure depuis laquelle s'étend au moins un canal incliné, et ce canal présente un orifice de buse à son extrémité aval, de sorte que le jet de liquide injecté par le canal puisse être dirigé vers les parois latérales de l'emballage. La tête de buse se caractérise en ce que l'orifice de buse dépasse de la tête, dans la direction du canal.
EP10825276.8A 2009-10-23 2010-10-21 Tête de buse et machine de remplissage ainsi équipée Active EP2490949B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE0901370 2009-10-23
SE1000480 2010-05-10
PCT/SE2010/000252 WO2011049505A1 (fr) 2009-10-23 2010-10-21 Tête de buse

Publications (3)

Publication Number Publication Date
EP2490949A1 true EP2490949A1 (fr) 2012-08-29
EP2490949A4 EP2490949A4 (fr) 2014-10-01
EP2490949B1 EP2490949B1 (fr) 2016-08-10

Family

ID=43900536

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10825276.8A Active EP2490949B1 (fr) 2009-10-23 2010-10-21 Tête de buse et machine de remplissage ainsi équipée

Country Status (4)

Country Link
EP (1) EP2490949B1 (fr)
CN (1) CN102596729B (fr)
BR (1) BR112012009469A2 (fr)
WO (1) WO2011049505A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9315281B2 (en) * 2012-11-19 2016-04-19 Regeneron Pharmaceuticals, Inc. System and methods for use in dispensing biopharmaceutical materials
DE102013109633A1 (de) * 2013-09-04 2015-03-05 Sig Technology Ag Vorrichtung zur Steuerung der Durchflussmenge
DE102013112770A1 (de) 2013-11-19 2015-05-21 Elopak Systems Ag Abfüllventil für Flüssigkeiten, insbesondere flüssige Nahrungsmittel
WO2019241943A1 (fr) 2018-06-21 2019-12-26 The Procter & Gamble Company Buse de distribution monobloc pour co-injection d'au moins deux liquides et son procédé d'utilisation
WO2019241989A1 (fr) * 2018-06-22 2019-12-26 The Procter & Gamble Company Système de remplissage de liquide et son procédé d'utilisation
EP4076761A1 (fr) 2019-12-16 2022-10-26 The Procter & Gamble Company Système de distribution de liquide comprenant une buse de distribution unitaire
EP4107114A1 (fr) * 2020-02-20 2022-12-28 Société des Produits Nestlé S.A. Système d'introduction d'un additif dans un contenant comprenant un microdoseur statique

Citations (8)

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DE1288935B (de) * 1960-01-12 1969-02-06 Meyer Geo J Mfg Co Fuellorgan an einem Gegendruckfueller fuer Buechsen
GB1481894A (en) * 1974-02-15 1977-08-03 Big Drum Inc Syrup dispensing nozzle assembly
US4253505A (en) * 1980-05-22 1981-03-03 Jos. Schlitz Brewing Company Valve control construction for a filling machine
US4375826A (en) * 1981-04-06 1983-03-08 Anderson Bros. Mfg. Co. Container filling machine
US4387748A (en) * 1981-10-29 1983-06-14 White Hugh L Can filling nozzle head
SE457789B (sv) * 1981-08-28 1989-01-30 Jagenberg Werke Ag Utloppsmunstycke foer paafyllningsanordningar foer vaetskor
WO1993025437A1 (fr) * 1990-10-24 1993-12-23 Servi-Tech, Inc. Adaptateur de soupape de remplissage et procedes associes
WO1997015493A1 (fr) * 1995-10-27 1997-05-01 Upm-Kymmene Oy Dispositif de remplissage d'emballages

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US3889725A (en) * 1970-08-29 1975-06-17 Holstein & Kappert Maschf Method of filling beer cans or the like
DE7338865U (de) * 1973-10-30 1974-02-07 Ind Werke Karlsruhe Augsburg Ag Vorrichtung zum Dosieren von Stoffen unterschiedlicher Konsistenz
US4750533A (en) * 1981-11-27 1988-06-14 Crown Cork & Seal Company, Inc. Filling valve for counterpressure filling of cans
US4711277A (en) 1982-07-23 1987-12-08 International Paper Company Filler nozzle with capillary action and its method of operation
CN1007509B (zh) * 1985-08-29 1990-04-11 利乐发展公司 包装机的阀装置
GB8809940D0 (en) * 1988-04-27 1988-06-02 Mclennon J L Ltd Apparatus for packaging
US5782274A (en) * 1997-03-11 1998-07-21 Tetra Laval Holdings & Finance, Sa Elliptical cleaning box for filling apparatus
JP4330193B2 (ja) * 1999-01-22 2009-09-16 三光機械株式会社 自動包装機用充填ノズル
JP3664598B2 (ja) * 1999-01-29 2005-06-29 ハウス食品株式会社 食品の充填方法
DE10040861A1 (de) * 2000-08-21 2002-03-07 Tetra Laval Holdings & Finance Vorrichtung zum Sterilisieren von Packungen mit Wasserstoffperoxid
GB2388585A (en) * 2002-05-17 2003-11-19 Unilever Plc Dosing system with multi-spout nozzle
CN2654515Y (zh) * 2003-09-29 2004-11-10 中国电子科技集团公司第十八研究所 锥形口出料器
DE102004003489B3 (de) * 2004-01-23 2005-06-23 Sig Technology Ltd. Ventil zum Abfüllen fließfähiger Produkte mit und ohne stückigen Anteil

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1288935B (de) * 1960-01-12 1969-02-06 Meyer Geo J Mfg Co Fuellorgan an einem Gegendruckfueller fuer Buechsen
GB1481894A (en) * 1974-02-15 1977-08-03 Big Drum Inc Syrup dispensing nozzle assembly
US4253505A (en) * 1980-05-22 1981-03-03 Jos. Schlitz Brewing Company Valve control construction for a filling machine
US4375826A (en) * 1981-04-06 1983-03-08 Anderson Bros. Mfg. Co. Container filling machine
SE457789B (sv) * 1981-08-28 1989-01-30 Jagenberg Werke Ag Utloppsmunstycke foer paafyllningsanordningar foer vaetskor
US4387748A (en) * 1981-10-29 1983-06-14 White Hugh L Can filling nozzle head
WO1993025437A1 (fr) * 1990-10-24 1993-12-23 Servi-Tech, Inc. Adaptateur de soupape de remplissage et procedes associes
WO1997015493A1 (fr) * 1995-10-27 1997-05-01 Upm-Kymmene Oy Dispositif de remplissage d'emballages

Non-Patent Citations (1)

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Title
See also references of WO2011049505A1 *

Also Published As

Publication number Publication date
WO2011049505A4 (fr) 2011-07-14
EP2490949B1 (fr) 2016-08-10
CN102596729B (zh) 2014-08-20
CN102596729A (zh) 2012-07-18
WO2011049505A1 (fr) 2011-04-28
BR112012009469A2 (pt) 2016-04-26
EP2490949A4 (fr) 2014-10-01

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