EP1621464A2 - Vorrichtung zum Verpacken eines pulverförmigen oder körnigen Produktes unter modifizierter Atmosphere - Google Patents

Vorrichtung zum Verpacken eines pulverförmigen oder körnigen Produktes unter modifizierter Atmosphere Download PDF

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Publication number
EP1621464A2
EP1621464A2 EP05291610A EP05291610A EP1621464A2 EP 1621464 A2 EP1621464 A2 EP 1621464A2 EP 05291610 A EP05291610 A EP 05291610A EP 05291610 A EP05291610 A EP 05291610A EP 1621464 A2 EP1621464 A2 EP 1621464A2
Authority
EP
European Patent Office
Prior art keywords
hopper
filling
inerting gas
gas
packaging
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Withdrawn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
EP05291610A
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English (en)
French (fr)
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EP1621464A3 (de
Inventor
Jean-Pierre Dupas
Cécile Theneau
Cédric Lambert
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.)
Nutriset SA
Original Assignee
Nutriset 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 Nutriset SA filed Critical Nutriset SA
Publication of EP1621464A2 publication Critical patent/EP1621464A2/de
Publication of EP1621464A3 publication Critical patent/EP1621464A3/de
Withdrawn legal-status Critical Current

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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
    • B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
    • B65B31/04—Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied
    • B65B31/044—Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied the nozzles being combined with a filling device
    • B65B31/045—Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied the nozzles being combined with a filling device of Vertical Form-Fill-Seal [VFFS] machines

Definitions

  • the present invention relates to a packaging filling device for the modified atmosphere packaging of granular or powdery products, in particular foodstuffs or pharmaceutical products, in packaging such as sachets.
  • bagger In this type of machine, the purging of the air present in the packaging is ensured by a continuous sweep of inerting gas.
  • the bagger performs a continuous tube of plastic film and the inerting gas is introduced inside the tube with the aid of an injection rod whose end is close to the sealing means of the bagger, the sealing means having the function of sealing the plastic film tube.
  • This type of machine (“bagger") works well for so-called “solid” products as opposed to granular or powdery products, but has the disadvantage of being inefficient for powdery products. Indeed, this type of machine requires a very high consumption of inerting gas to arrive at residual oxygen levels in the product packaging. less than 3%, which is generally the rate required for food packaging.
  • the subject of the present invention is therefore a filling and packaging device for the modified-atmosphere packaging of food or pharmaceutical products, in particular in granular or pulverulent form, making it possible to overcome these drawbacks, and which also has the advantage of to be able to condition a pulverulent product under a neutral gas with a residual oxygen content of less than 3%, with easy and inexpensive implementation, and low consumption of inerting gas.
  • Such a device generally has a so-called upper filling part of said product device, and a lower part for the packaging of said product, cooperating with said upper part, for example, a "bagger” type device, or a device for sealing of containers such as trays or pots.
  • the Applicant has found that a particular arrangement of a plurality of inert gas injection means in the upper filling part, coupled with at least one injection means in the lower packing part. allowed the conditioning of said powdery product under a neutral inerting gas with a low residual oxygen level, ie less than 3%, preferably less than 1%, and can even reach 0.4%.
  • residual oxygen level is meant, in the sense of the present invention, the volume of oxygen in the package relative to the total gas volume in said package.
  • total gas volume in the packaging means the sum of the volume of inerting gas injected into the packaging and the volume of residual oxygen in the same packaging.
  • the inerting gas is selected from the group comprising in particular nitrogen, carbon dioxide, rare gases such as argon, and mixtures thereof.
  • the injection pressure is chosen to be sufficiently high so that the inerting gas penetrates everywhere in the mass of the product to be packaged but low enough not to cause turbulence that would disrupt the operation of the device.
  • the packaging device consists of an upper filling part of the product and a lower packing part, the upper part comprising means for feeding the product, means for receiving the product, these the latter being coupled to means for quantitatively determining the product and the lower part comprising means for forming and / or supplying the receptacles, filling means for these receptacles and means for sealing these receptacles.
  • the inerting means which are inerting gas feeds are arranged on the one hand in the upper part of the device at the means of receiving and dosing the product and secondly in the lower part of the device at the container filling means just upstream of the sealing means.
  • the feed pressure of the inerting gas must be sufficiently high to allow the penetration of the gas into the product core and low enough to prevent any turbulence phenomenon. Indeed, in the upper part, the turbulence could cause disruption of the dosage and in the lower part of the sealing defects receptacles.
  • the feed pressure of the inerting gas is generally between 0.5 and 6 bar, preferably between 1 and 5 bar, and even more preferably between 1.5 and 3 bar.
  • This pressure is adapted by those skilled in the art depending on the precise device used, the product flow and the rate of the device.
  • said inerting gas injection means in the wall of the hopper are arranged in the same horizontal plane perpendicular to the axis of the hopper, distributed equidistant from each other, said plane being situated at a distance from one another. height relative to the lower opening of the hopper which corresponds to about 70% of the lowest level of powder in the hopper in the conditioning phase.
  • the terms "in the operating phase” or “in the conditioning phase” are used indifferently to describe the device when it is in working order.
  • the device comprises at least three injection means in the wall of the hopper, preferably five, which are arranged in the same horizontal plane perpendicular to the axis of the hopper being distributed equidistant from each other , said plane being preferably the plane located at a height with respect to the lower edge of the hopper which corresponds to about 70% of the minimum height of powder.
  • the particular arrangement of the inerting gas injection means in the hopper is such that, when the filling and packaging device according to the invention is in the filling phase, the inerting gas is Permanently injected into the granular or powdery product when it passes into the hopper, even when the level of product in the hopper is at its lowest.
  • the lowest level of product in the hopper means the minimum level of minimum powder in the hopper in the packaging, when the filling device and packaging according to the invention is in operation, that is to say the minimum level of powder for the assay thereof.
  • the means for injecting inerting gas into the hopper make it possible to expel the air included in the powder while the means for injecting inerting gas into the lower packaging part of the device according to the invention.
  • injection in the shaper allows to dilute the air conditioning atmosphere. It is the combination of these injection means that makes it possible to obtain a very low residual oxygen level of the order of 1%.
  • the outer diameter is generally of the order of 6 mm.
  • the shaper is a device that takes the measurement and shape of the bag, and is in the form of a hollow cylinder.
  • the filling and packaging device comprises a dedusting system, which is located on the top of the hopper.
  • vertical welding means a vertical welding bar, which is placed on the surface of the shaper, parallel to the common axis of the shaper and the hopper.
  • horizontal welding means a horizontal welding jaw, which is placed under the shaper, perpendicular to the common axis of the shaper and the hopper.
  • bag separating means an integrated knife inside one of the horizontal jaws.
  • the packages are containers intended to be capped, such as trays, pots or containers. similar packaging, and the lower packaging part is a sealing device for sealing said container with a plastic lidding film.
  • the metering tube 214 which is sealingly mounted inside the lower edge of the hopper 211, receives the lower end of the volumetric screw 212.
  • the upper end of the volumetric screw 212 is fixed above the upper edge of the hopper 211 by an axis corresponding to the central axis of the hopper.
  • the scraper 213 is also attached to / above the upper edge of the hopper 211, so that the movement of the scraper 213 is coupled to that of the volumetric screw 212 in the hopper.
  • the powdery or granular products to be packaged are conveyed by the conveyor belt 22 until the opening of the hopper, which fills up until the signal from a high level sensor, located on the inner upper wall of the hopper, stops filling.
  • the volumetric screw 212 drives the products to be packaged to the metering tube 214.
  • the wiper 213, whose movement is coupled to that of the screw 212, rotates in the hopper 211, to prevent products from remaining on the inner wall of the hopper, which is relatively common in the case of slightly fatty or sticky products, such as for example a milk powder enriched with fat.
  • the number of turns made by the screw 212 during a filling phase determines the quantity of products introduced into a package. When a filling phase is complete, all the products to be packaged in a bag is located in the lower part of the package and the sealing phase can then begin.
  • the inerting gas injection means (or points) 215 are furthermore recognized in the hopper 211. , which are five in number.
  • the best configuration for the inerting gas injection means 215 in the hopper 211 is to arrange them all five in the same plane located at a height of 10.4 cm relative to at the lower edge of the hopper 211.
  • Such an arrangement makes it possible, when the filling and packaging device according to the invention is in the filling stage, to inject permanently inerting gas into the granular or powdery product to be packaged. even when the level of products in the hopper is at its lowest in the packaging phase.
  • the lower packaging part 3 is recognized, which consists of a bagging device 3, or, in other words, a device for packaging products in containers. soft bags.
  • the bagging device 3 comprises a shaper 31, which comprises a neck, into which the metering tube 214 of the upper filling part 2 fits.
  • FIG. 2 also shows a means for injecting inerting gas into the bagging device 3, which consists of an injection cannula 311 for inerting gas, adjacent to the wall of the shaper 31.
  • FIG. 2 also shows that the metering tube 214 of the upper filling part 2 passes through the neck of the shaper 31.
  • Figure 3 shows the same bagging device as that of Figure 2.
  • Figure 3 also shows the plastic film and / or metallized plastic 36, which is intended for the realization of the bags.
  • the plastic film 36 is in the form of a coil 35 which is unwound to be driven to the shaper 31.
  • the plastic film 36 passes through the neck of the shaper 31 which allows the shaping of the bag by the junction of the left and right side edges of the plastic film 36.
  • a vertical welding bar 37 makes it possible to weld together the left and right side edges of the plastic film 36, and a horizontal welding jaw 38 then welds the front edge of the film into a thin flat strip, having a horizontal central axis.
  • a knife 39 integrated into one of the horizontal sealing bars makes it possible to cut the thin flat strip at its central axis, so as to form the lower edge of the bag being formed, while separating it from the bag coming from to be formed.
  • Example 1 influence of the rate on the residual oxygen level
  • the nitrogen is used as an inerting gas at a pressure of 2 bar measured at the injection means in the hopper 215 and in the shaper 311.
  • the flow rate of the gas in the hopper 211 is 40 L / min and the gas flow rate in the shaper 31 is 20 L / min.
  • Oxygen level values which are mean values (0.02% standard deviation), were measured as a function of the operating rate of the device, ie the number of sachets filled and sealed per minute.
  • the device of FIGS. 1 to 3 is used for the bagging under modified atmosphere of a food powder identical to that of example 1.
  • the flow rate of the gas in the hopper 211 is 40 L / min and the gas flow rate in the shaper 31 is 20 L / min.
  • the rate of the device has been set at 31 sachets / min.
  • the oxygen values which are average values (0.02% standard deviation), were measured as a function of the pressure of the nitrogen used as the inerting gas, measured at the injection means in the reactor. the hopper 215 and in the shaper 311, the pressures being identical at these different points.

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  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vacuum Packaging (AREA)
  • Basic Packing Technique (AREA)
EP05291610A 2004-07-30 2005-07-28 Vorrichtung zum Verpacken eines pulverförmigen oder körnigen Produktes unter modifizierter Atmosphere Withdrawn EP1621464A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0408491A FR2873655A1 (fr) 2004-07-30 2004-07-30 Dispositif de remplissage et d'emballage pour le conditionnement sous atmosphere modifiee de produits granulaires ou pulverulents

Publications (2)

Publication Number Publication Date
EP1621464A2 true EP1621464A2 (de) 2006-02-01
EP1621464A3 EP1621464A3 (de) 2006-04-12

Family

ID=34949829

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05291610A Withdrawn EP1621464A3 (de) 2004-07-30 2005-07-28 Vorrichtung zum Verpacken eines pulverförmigen oder körnigen Produktes unter modifizierter Atmosphere

Country Status (2)

Country Link
EP (1) EP1621464A3 (de)
FR (1) FR2873655A1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2340898A1 (es) * 2008-01-11 2010-06-10 A.G. Protectpack, S.L. Sistema para envasar mercancias y cabezal de llenado para envasar dichas mercancias.
CN103662161A (zh) * 2013-11-28 2014-03-26 苏州蓝王机床工具科技有限公司 新型充氮设备
CN110697106A (zh) * 2019-11-07 2020-01-17 东莞职业技术学院 脱水罗汉果自动装盒机
CN117302612A (zh) * 2023-11-22 2023-12-29 烟台市华通道路工程有限公司 一种填缝剂定量下料装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2903209T3 (es) 2019-04-04 2022-03-31 Ulma Packaging Tech Ct Coop Máquina de envasado vertical para envasar productos en atmósfera modificada

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB930528A (en) * 1962-01-30 1963-07-03 Akerlund & Rausing Ab Improvements in and relating to sealed packages, and a method of producing same
GB998420A (en) * 1962-06-04 1965-07-14 Gen Foods Corp Method of filling container
US3318067A (en) * 1962-11-27 1967-05-09 Hesser Ag Maschf Apparatus for packaging pourable commodities
US3482373A (en) * 1967-11-06 1969-12-09 Packaging Frontiers Inc Packaging
US3579945A (en) * 1968-08-22 1971-05-25 Fr Hesser Maschienfabrik Ag Apparatus for reducing the atmospheric oxygen content of fluent solid pourable materials by gas exchange
FR2194607A1 (de) * 1972-08-05 1974-03-01 Hesser Ag Maschf
US4997664A (en) * 1989-09-05 1991-03-05 Bryan Foods, Inc. Method for packaging food products

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB930528A (en) * 1962-01-30 1963-07-03 Akerlund & Rausing Ab Improvements in and relating to sealed packages, and a method of producing same
GB998420A (en) * 1962-06-04 1965-07-14 Gen Foods Corp Method of filling container
US3318067A (en) * 1962-11-27 1967-05-09 Hesser Ag Maschf Apparatus for packaging pourable commodities
US3482373A (en) * 1967-11-06 1969-12-09 Packaging Frontiers Inc Packaging
US3579945A (en) * 1968-08-22 1971-05-25 Fr Hesser Maschienfabrik Ag Apparatus for reducing the atmospheric oxygen content of fluent solid pourable materials by gas exchange
FR2194607A1 (de) * 1972-08-05 1974-03-01 Hesser Ag Maschf
US4997664A (en) * 1989-09-05 1991-03-05 Bryan Foods, Inc. Method for packaging food products

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2340898A1 (es) * 2008-01-11 2010-06-10 A.G. Protectpack, S.L. Sistema para envasar mercancias y cabezal de llenado para envasar dichas mercancias.
CN103662161A (zh) * 2013-11-28 2014-03-26 苏州蓝王机床工具科技有限公司 新型充氮设备
CN110697106A (zh) * 2019-11-07 2020-01-17 东莞职业技术学院 脱水罗汉果自动装盒机
CN117302612A (zh) * 2023-11-22 2023-12-29 烟台市华通道路工程有限公司 一种填缝剂定量下料装置
CN117302612B (zh) * 2023-11-22 2024-02-06 烟台市华通道路工程有限公司 一种填缝剂定量下料装置

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Publication number Publication date
FR2873655A1 (fr) 2006-02-03
EP1621464A3 (de) 2006-04-12

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