EP3581505A1 - Gazéification indépendante du niveau de remplissage - Google Patents

Gazéification indépendante du niveau de remplissage Download PDF

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Publication number
EP3581505A1
EP3581505A1 EP19168500.7A EP19168500A EP3581505A1 EP 3581505 A1 EP3581505 A1 EP 3581505A1 EP 19168500 A EP19168500 A EP 19168500A EP 3581505 A1 EP3581505 A1 EP 3581505A1
Authority
EP
European Patent Office
Prior art keywords
volume
gas
packaging
pressure
partial
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
EP19168500.7A
Other languages
German (de)
English (en)
Other versions
EP3581505B1 (fr
Inventor
Michael RÄDLER
Florian Felch
Alexander STÖTZNER
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.)
Multivac Sepp Haggenmueller GmbH and Co KG
Original Assignee
Multivac Sepp Haggenmueller GmbH and Co KG
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
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Publication of EP3581505A1 publication Critical patent/EP3581505A1/fr
Application granted granted Critical
Publication of EP3581505B1 publication Critical patent/EP3581505B1/fr
Active 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
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B65B51/14—Applying or generating heat or pressure or combinations thereof by reciprocating or oscillating members
    • 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
    • B65B31/006—Adding fluids for preventing deformation of filled and closed containers or wrappers
    • 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
    • B65B31/02—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas
    • B65B31/025—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas specially adapted for rigid or semi-rigid containers
    • B65B31/028—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas specially adapted for rigid or semi-rigid containers closed by a lid sealed to the upper rim of the container, e.g. tray-like container
    • 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
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/02—Enclosing successive articles, or quantities of material between opposed webs
    • 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
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/02—Enclosing successive articles, or quantities of material between opposed webs
    • B65B9/04—Enclosing successive articles, or quantities of material between opposed webs one or both webs being formed with pockets for the reception of the articles, or of the quantities of material
    • 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
    • B65B47/00—Apparatus or devices for forming pockets or receptacles in or from sheets, blanks, or webs, comprising essentially a die into which the material is pressed or a folding die through which the material is moved
    • 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
    • B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
    • B65B61/04—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages
    • B65B61/06—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages by cutting

Definitions

  • the invention relates to a method for producing packagings with a packing optic that is at least substantially similar to one another according to claim 1. Furthermore, the invention relates to a sealing station for producing packagings with a packing optic that is substantially similar to one another according to independent claim 11.
  • the present invention is in the following in connection with Figure 1 described problem underlying.
  • Figure 1 shows a sealing station 3 'designed for gassing evacuated packaging, which is present, for example, as part of a thermoforming packaging machine.
  • a sealing station 3 designed for gassing evacuated packaging, which is present, for example, as part of a thermoforming packaging machine.
  • a total packaging volume P ' (hereinafter also: packaging volume P') is gassed, which is the sum of a partial volume V1 ', which is formed by the respective packaging troughs 14' minus the existing product content 22 ', and of a partial volume V2 ', which is present above the respective packaging troughs 14' and is enclosed by the upper film 10 '.
  • the total packaging volume P ' is generally larger than the total of the individual volumes enclosed by the packages ultimately produced.
  • This in Figure 1 Total packaging volume P 'shown serves for gas distribution between the packaging. This results in a certain gap S 'between the lower and the upper film material, via which the gas supplied can be distributed in all the packaging positioned within the sealing station.
  • the packaging is optically produced differently for the following reasons.
  • the packaging positioned within the sealing station 3 ' is conventionally gassed to a gassing target pressure.
  • the upper film material is pressed in the direction of the lower film material after the gassing process.
  • the amount of gas contained in the partial volume V2 'with the target fumigation pressure is pressed into the partial volume V1' so that the pressure rises above the target fumigation pressure in the partial volume V1 '.
  • gas balancing can no longer take place between the individual packages positioned within the sealing station.
  • the pressure in the package will be significantly higher than the fumigation setpoint pressure.
  • the degree of fill the pressure in the package will be significantly higher than the fumigation setpoint pressure.
  • the pressure before sealing hardly differs from the pressure that arises when the packaging is sealed, since the pressure increase in partial volume V1 'due to the depression of the Upper film material is relatively small.
  • the packaging appears to be more depressed after ventilation, if at the beginning a gassing target pressure was set to be well below atmospheric pressure, so that when packaging with nominal product content is present, its packaging appearance looks normal.
  • the object of the invention is to produce a method and a device for the production of packaging with a packaging optic which is at least substantially similar to one another. This should be possible even if the respective packaging has varying degrees of filling, i.e. are voluminously filled unevenly.
  • the fumigation target pressure initially generated in a respective work cycle in the package volume of the packaging (s) that is left free of products is selectively lowered to a lower pressure level while maintaining the package volume by releasing a detectable portion of the previously supplied gas, so that the subsequent, preferably slow, depressing of the Upper film material a rise to the fumigation target pressure is possible when the upper film material reaches the end position provided for the completion of the packaging, ie the pack volume is reduced by the imaginary partial volume.
  • the filling of the package volume to the fumigation target pressure and the targeted release of the partial amount of gas to create a reduced pressure level within the package volume can be detected using a pressure sensor connected to the package volume.
  • the essence of the invention is that this is free per work cycle, i.e. minus the respective product volumes, the existing packing volume of one or more packings positioned in the sealing station should first be gassed to the fumigation target pressure and then again a subset of the gas supplied from the imaginary subvolume, which can be predetermined according to physical principles, by which the packing volume is later reduced when the upper film material is pressed down to drain.
  • the amount of gas in the partial volume is discharged into the collecting container, which otherwise would be in accordance with Figure 1 closed present package volume would be compressed.
  • the imaginary plane simultaneously forms an imaginary system boundary as a reference for the fact that the amount of gas contained after filling above the system boundary, within the imaginary and calculable partial volume, has to be released, as a result of which the pressure within the packing volume drops as an intermediate step.
  • the subsequent volume reduction by lowering the upper film material to the system limit then leads to the restoration of a gas atmosphere to the fumigation setpoint pressure level so that it can then be sealed.
  • a filling of the respective packaging to the gassing target pressure that is adapted to the respective filling degrees is faked by the fact that, particularly with filling degrees that vary per work cycle, the gas quantity within the imaginary partial volume, which is still used at the beginning of the method as an aid for gas distribution between the respective packaging is required, after the fumigation process is discharged to the collecting volume.
  • the quantity of gas contained within the imaginary, calculable partial volume at the fumigation target pressure can be discharged in a controlled manner into the known collecting volume, which in turn has a definable outlet pressure.
  • the partial quantity of the gas filled into the packing volume, which is discharged via the line, is preferably passed into a collecting volume which is at least partially enclosed by an upper tool part of the sealing station and / or the upper packing material.
  • the collecting volume is provided directly in the upper part of the tool of the sealing station, that is to say integrated therein, which leads to an advantageous compact construction of the sealing station for the method according to the invention.
  • the collecting volume and the imaginary partial volume can be easily calculated on the basis of known geometries of the structure of the upper part of the tool, which means that the partial discharge of the gas into the collecting volume can be carried out technically without any problems.
  • An alternative variant of the invention provides that the partial quantity of the gas filled into the packing volume discharged via the line is passed into a separate collecting container forming the collecting volume.
  • the collecting container thus serves as a separate reference volume, which means that a format change and a tool change that may be associated with it can be carried out particularly easily without influencing the machine program.
  • a target pressure for the collection volume is determined on the basis of the partial quantity of gas that has been discharged until the line remains open until it is reached.
  • the pressure prevailing in the collecting volume is detected by means of a pressure sensor connected to it. This would allow the drainage process to be precisely controlled and better timed to integrate into other process steps. A preset time fixation, possibly resulting in "dead times", for releasing the partial amount of the gas is then not necessary.
  • a process control of the discharge process based on the target volume of the target pressure can be carried out very precisely by means of simple control technology, which may already be present on the machine, and leads to an optimization of the entire manufacturing process due to the associated minimization of dead time.
  • the pressure generated within the collecting volume by the gas introduced therein preferably remains lower during the entire discharge process than the pressure within the package volume on the remaining amount of gas remaining there, so that the package volume remains stable even after the discharge process. This ensures high process stability, especially high process manufacturing quality.
  • An advantageous embodiment provides that the upper packaging material is moved into the end position by means of a ventilation process and / or by means of at least one device that performs a lifting movement.
  • a ventilation process and / or by means of at least one device that performs a lifting movement.
  • such a process is controlled in such a way that the upper packaging material is slowly moved into the end position so that the remaining amount of the filled-in gas remaining within the pack volume after the draining process can be distributed over all packagings positioned within the sealing station. This means that the respective packaging can be visually produced the same way.
  • the upper packaging material is preferably sealed in the end position along an edge region with the lower packaging material, so that the finished packaging encloses a desired atmosphere in an airtight manner.
  • An advantageous variant provides that the package volume is evacuated before filling with gas. As a result, the desired process atmosphere can be created very precisely within the respective packaging through the subsequent process steps.
  • the imaginary partial volume and / or the collecting volume in particular their relationship to one another, is determined on the basis of a test run become.
  • the lower packaging material could, for example, be flat, ie not molded, fed to the sealing station and clamped together with the upper packaging material.
  • gassing only a space corresponding to the imaginary partial volume would then be filled with a gas quantity at the target gassing pressure. If the line is then opened until the pressure between the sub-volume clamped in the sealing station and the collecting volume is equalized, the volume ratio can be determined using the recorded balanced pressure with prior knowledge of the total volume (consisting of the collecting volume and the sub-volume). As a result, their respective volumes also result.
  • the method according to the invention can be used in the production of optically comparable packages with a predetermined approximately constant respective filling level for the precise and simple automated determination of an offset print, the offset print being based on a difference between the gassing pressure and that after the partial quantity of gas has been released the imaginary partial volume of the pressure still present within the package volume is determined, so that in subsequent machine cycles the package volume is only filled with gas until the pressure which results from the gassing setpoint pressure minus the specific offset pressure is reached. If the packaging to be produced has the same degree of filling as a requirement for the offset function, the method according to the invention could advantageously be used to determine the offset printing, at least at the beginning of the production process, while the draining process is then dispensed with for this product batch.
  • This process could also be repeated at intervals during production for the purpose of updating the offset print, which may further improve the production quality.
  • the invention also relates to a sealing station for a packaging machine, which is in particular in the form of a deep-drawing packaging machine, the sealing station having a line which connects a packaging volume enclosed between a lower and an upper packaging material to at least one packaging positioned within the sealing station with a collecting volume, the Line for discharging a predetermined portion of a gas previously filled in the package volume is determined in the collecting volume.
  • the entire package volume is initially filled with a filling gas provided for a desired atmosphere to a target pressure, which should also be included later in the finished packagings which are, however, reduced in volume with respect to the total package volume.
  • the initially filled packing volume consists of a first partial volume, which is formed by the spaces left free of the inserted products in the lower preformed packaging material, and a second partial volume enclosed above the first partial volume and enclosed by the upper packaging material for the purpose of uniform gas distribution.
  • the gas quantity contained in the second partial volume is discharged via the line to the collecting volume, so that the pressure prevailing in the maintained package volume in the meantime decreases, but subsequently by reducing the package volume by the second partial volume designed for gas distribution to the desired packaging dimension to the originally generated packaging dimension Target pressure increases.
  • Such a sealing station can be used to produce packagings with a packing optic which is at least substantially similar to one another, with varying degrees of filling. Furthermore, the sealing station according to the invention is suitable for carrying out a test run of the type described above.
  • the pressure level currently prevailing in the pack volume can be detected in the collecting volume for the purpose of gas supply and / or gas discharge control by means of a pressure sensor connected to the pack volume.
  • the line is preferably provided with a valve, in particular a 2/2 valve, which can be closed in order to limit the predetermined portion of the gas to be discharged to the collecting volume.
  • the valve can be switched on a process-controlled basis by means of a pressure value acquisition in the collecting volume, so that a partial discharge of the gas occurs.
  • a pressure sensor can be connected to a section of the line leading to the collecting volume.
  • One variant provides that a volume flow can be controlled by means of the valve. This makes it possible, in particular, to control the discharge process of the partial quantity of the gas with high process stability.
  • At least a section of the line is preferably also provided for evacuating and / or gassing the pack volume.
  • the line fulfills a multiple function and can be integrated in a compact manner at the sealing station, if necessary using existing pipe systems.
  • the collecting volume is formed by a separate collecting container of the sealing station.
  • Figure 1 shows a schematic representation of a sealing station 3 'according to the prior art.
  • the sealing station 3 ' has an upper tool part 20' and a lower tool part 21 'which can be brought up to the upper tool part 20' by means of a lifting movement and which is designed to receive preformed packaging trays 14 '.
  • Packaging troughs 14 'shown include products 16' with different filling levels 22 '.
  • the partial volume V1 ' is composed of the sum of the respective packaging tray volumes created by the packaging trays 14' and released by the products 16 '.
  • the partial volume V2 ' forms an imaginary partial volume which is enclosed between the upper film 10' and an imaginary plane E 'shown in broken lines.
  • a connecting gap S' is formed, which allows a distribution of the gas within the packing volume V ', in particular during the filling process.
  • a sealing unit 25 'for a sealing process is positioned within the upper tool part 20' and is designed to move the upper film 10 'towards the packaging troughs 14' positioned below it for a sealing process by means of a lifting movement H '.
  • the packing volume P ' consisting of the sum of the respective partial volumes V1' and V2 ', is first filled with a gas to create a desired atmosphere to a gassing target pressure p Soll' .
  • the subsequent stroke movement H 'of the sealing unit 25' pushes the gas quantity contained in the partial volume V2 'into the partial volume V1' released from the products 16 'within the packaging troughs 14'. Since the respective fill levels 22 'of the packaging troughs 14' are different, there is also a different final pressure within the finished packaging V '.
  • FIG. 2 shows a schematic view of a packaging machine 1, which is designed in the form of a thermoforming packaging machine T.
  • the packaging machine 1 has a molding station 2, a sealing station 3, a cross cutting device 4 and a longitudinal cutting device 5. These are arranged in this order in a working direction R on a machine frame 6.
  • a feed roller 7 is arranged on the input side, from which a lower film U as the lower packaging material 8 is pulled off.
  • the lower film U is transported into the forming station 2 by means of a feed device, not shown.
  • packaging troughs 14 are formed into the bottom film U by means of the forming station 2.
  • the packaging troughs 14 are then transported further to an insertion section 15, where they can be filled with a product 16 manually or automatically. Following the insertion section 15, the packaging troughs 14 filled with the products 16 are transported further to the sealing station 3.
  • the packaging troughs 14 can be sealed with an upper film O, which forms an upper packaging material 10, so that by sealing the upper film O onto the packaging troughs 14, closed packages V are produced, which are separated with the cross-cutting device 4 and the longitudinal cutting device 5 and can be removed by means of a discharge device 13.
  • FIG Figure 3 schematically shows a sealing station 3 according to the invention, as shown in FIG Figure 2 shown packaging machine 1 can be used.
  • the sealing station 3 comprises an upper tool part 20 and a lower tool part 21, which enclose a sealing chamber 23.
  • Figure 3 further shows that two packaging troughs 14 with respective products 16 are accommodated in the lower tool part 21, the respective degrees of filling 22 of the packaging troughs 14 differing.
  • the pack volume V is traversed by means of an imaginary plane E, shown in broken lines, whereby it is divided into a sub-volume V1 and a sub-volume V2.
  • the packaging trough 14 present on the right in the image plane with a lower filling degree 22 forms a larger proportion of the packaging volume P than the other packaging trough 14 filled with a higher filling degree 22.
  • the partial volume V2 enclosed by the upper film O and the imaginary plane E is connected via a line 26 to a collecting volume V3 integrated in the upper tool part 20, which is enclosed between the upper tool part 20 and the upper film O.
  • the pack volume P is filled via a section 26a of the line 26 with a gas G to create a desired atmosphere to a gassing target pressure p des.
  • section 26a has an inlet valve 37a which can be controlled by means of a pressure sensor 38a.
  • the pressure sensor 38a is designed to detect the pressure level within the package volume P.
  • a subset TM contained within the subvolume V2 (see Figure 5 ) of the gas G brought to the target fumigation pressure p is again removed from the packing volume P via the line 26.
  • the gas G is passed through sections 26a, 26b, 26c of the line 26 into the collecting volume V3.
  • the partial quantity TM of the discharged gas G corresponds to the mass of the gas which is contained in the partial volume V2.
  • section 26b has a (lowering) valve 27 which can be controlled by means of a further pressure sensor 48a.
  • the pressure sensor 48a is designed to detect the pressure level within the collection volume V3.
  • the section 26c is also present as a ventilation line, which has a ventilation valve 47a.
  • the packing volume P i.e. the valve 27 of the drain line 26 is closed and the upper film O is pressed in the direction of the packaging troughs 14 positioned below it by means of the sealing unit 25.
  • the upper film O is brought into an end position L positioned in accordance with the imaginary plane E, in which the upper film O is sealed onto the packaging troughs 14.
  • the lowering of the top film O can be controlled so slowly by means of the sealing unit 25, in particular a plate-shaped device 28 which can be lowered thereon, and / or by means of a ventilation process that the remaining quantity RM contained within the package volume P is slowly distributed over the respective packaging V.
  • the device 28 is designed as a product protection plate and is configured to prevent undesired heat being introduced onto the products 16 accommodated within the packaging troughs 14 during the sealing process.
  • FIG 4 shows the sealing station 3 according to Figure 3 , a separate collecting container 30 being used as the collecting volume V3.
  • a separate ventilation line 26d which has a ventilation valve 47b, is connected to the sealing chamber 23.
  • the line 26 in each case comprises the valve 27, which is opened for the draining process, so that the partial volume TM of the gas G from the packing volume P can flow into the collecting volume V3.
  • the valve 27 remains closed.
  • the valve 27 remains closed when the packing volume P is preceded by an evacuation process.
  • the draining process via the valve 27 can according to Figure 4 can be controlled by means of a pressure sensor 48b connected to the collecting volume V3.
  • the filling process takes place via an inlet valve 37b, which is pressure-controlled by means of a pressure sensor 38b connected to the pack volume P.
  • the upper tool part 20 is moved over the section 26c of FIG Figure 3 or via the separate ventilation line 26d Figure 4 ventilated (ie creating a pressure balance to the atmospheric pressure of the environment).
  • FIG. 5 shows the principle of the process according to the invention.
  • the pack volume P is filled with the desired gas G to the gassing set pressure p des. There is then a predetermined, to the p Begasungssolldruck corresponding amount of gas in the packing volume GM P.
  • the amount of gas (partial amount TM) contained within the imaginary partial volume V2, which is present above the imaginary plane E drawn in as the system boundary, is via the in the Figures 3 and 4 drained line 26 shown.
  • the residual amount RM of the gas G still remaining within the pack volume P is distributed over the entire pack volume P, so that a reduced pressure level p red is present within the maintained pack volume P.
  • the packaging volume P is reduced by the imaginary partial volume V2 by pressing the upper packaging material into the end position L falling on the imaginary plane E. It is now again the Begasungssolldruck p set within the laid down for finished packaging V partial volume V1 before. According to this process, regardless of the degree of filling, packaging can be produced with a packaging optic that is at least substantially similar to one another.
  • the ratio of the partial volume V2 and the collecting volume V3 can be determined by means of a test run that can be carried out using the sealing station 3 according to the invention.
  • the test run could, for example, be carried out in such a way that the lower film U used for the packaging troughs 14 is not introduced into the sealing station 3 and is fixed therein together with the upper film O.
  • only the partial volume V2 is gassed to the target gassing pressure p target during gassing.
  • the line 26 is then opened and left open until the pressure between the partial volume V2 and the collecting volume V3 is the same, the ratio of the partial volume V2 to the collecting volume V3 can be calculated via the pressure which arises.
  • the respective volumes of the partial volume V2 and the collecting volume V3 can then be calculated directly via the total volume, consisting of the partial volume V2 and the collecting volume V3.
  • the partial volume V2 could also be approximately estimated by performing the stroke of the sealing unit 25.
  • the respective volumes V2 and V3 could also be calculated using clearly known reference volumes when the machine is started up.
  • the volumes used in connection with the principle according to the invention that is to say the partial volume V2 and the collecting volume V3, can expediently be stored in a tool database of the packaging machine 1 and serve as arithmetic variables during the packaging process.
  • the principle according to the invention can be used for the automated generation of an offset print, so that under The use of offset printing means that the partial gas discharge process can be dispensed with in order to produce packaging with a packaging optics that is essentially constant.
  • gassing is carried out only to a reduced pressure, which results from the gassing target pressure minus the offset pressure calculated on the basis of the invention, and is sealed immediately thereafter.
  • a reduced pressure which results from the gassing target pressure minus the offset pressure calculated on the basis of the invention, and is sealed immediately thereafter.
  • the invention could just as well be carried out at a sealing station which is part of a packaging machine which is not designed as a deep-drawing packaging machine, for example a tray sealing machine with the supply of pre-made packaging trays.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Vacuum Packaging (AREA)
EP19168500.7A 2018-06-14 2019-04-10 Gazéification indépendante du niveau de remplissage Active EP3581505B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018114263.3A DE102018114263A1 (de) 2018-06-14 2018-06-14 Füllstandsunabhängiges begasen

Publications (2)

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EP3581505A1 true EP3581505A1 (fr) 2019-12-18
EP3581505B1 EP3581505B1 (fr) 2021-01-20

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US (1) US11511896B2 (fr)
EP (1) EP3581505B1 (fr)
DE (1) DE102018114263A1 (fr)
ES (1) ES2867975T3 (fr)

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Publication number Priority date Publication date Assignee Title
DE102018110227A1 (de) * 2018-04-27 2019-10-31 Multivac Sepp Haggenmüller Se & Co. Kg Verpackungsmaschine zum Verpacken von Produkten in Kunststoffverpackungen
DE102021110382A1 (de) 2021-04-23 2022-10-27 Multivac Sepp Haggenmüller Se & Co. Kg Siegelstation mit einer Produktschutzplatte

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WO2014056806A1 (fr) * 2012-10-09 2014-04-17 Gruppo Fabbri Vignola S.P.A. Appareil comportant des éléments de cloche se faisant face, pour emballage sous atmosphère modifiée de produits placés dans des plateaux
WO2014180823A1 (fr) * 2013-05-07 2014-11-13 Cryovac, Inc. Appareil et procédé d'emballage d'un produit

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US20190382147A1 (en) 2019-12-19
US11511896B2 (en) 2022-11-29
ES2867975T3 (es) 2021-10-21
EP3581505B1 (fr) 2021-01-20

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