EP0942870B1 - Vacuum and gas-flush packaging device for filled pouches - Google Patents
Vacuum and gas-flush packaging device for filled pouches Download PDFInfo
- Publication number
- EP0942870B1 EP0942870B1 EP97909132A EP97909132A EP0942870B1 EP 0942870 B1 EP0942870 B1 EP 0942870B1 EP 97909132 A EP97909132 A EP 97909132A EP 97909132 A EP97909132 A EP 97909132A EP 0942870 B1 EP0942870 B1 EP 0942870B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gas
- pouch
- introduction pipe
- bag
- section
- 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.)
- Expired - Lifetime
Links
- 238000004806 packaging method and process Methods 0.000 title 1
- 239000007789 gas Substances 0.000 claims description 10
- 229920006280 packaging film Polymers 0.000 claims description 3
- 239000012785 packaging film Substances 0.000 claims description 3
- 238000009459 flexible packaging Methods 0.000 claims description 2
- 239000011888 foil Substances 0.000 claims description 2
- 239000011261 inert gas Substances 0.000 claims 2
- 238000003958 fumigation Methods 0.000 description 18
- 238000007789 sealing Methods 0.000 description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 7
- 239000001301 oxygen Substances 0.000 description 7
- 229910052760 oxygen Inorganic materials 0.000 description 7
- 230000001681 protective effect Effects 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
Images
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
- B65B31/02—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
- B65B31/024—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 wrappers or bags
Definitions
- the invention relates to a device for evacuating and Fumigation of filled packs, such as from DE-AS 11 77 065 has become known.
- the well-known Device has a mouthpiece, the gassing openings down towards the opening of the shoulders of the Pack fin-like protruding head area of the pack and are directed sideways.
- the head area and opening always on same position in the chamber is with the known device a reduction in Residual oxygen content possible in the pack.
- Both Packs commonly used nowadays are made from relative thin and flexible packaging film is the exact one Position of the head area or opening of the pack in the chamber, however, is subject to fluctuations, so that not it is ensured that the downward facing circular openings of the fumigation tube always sufficient Shielding gas gets inside the pack. This results in undesirable high fluctuations in the Residual oxygen content inside the pack.
- the device for evacuation and gassing according to the invention of filled packs with the characteristic features of claim 1 has the advantage that almost regardless of the location of the opening of the package in the Always a sufficient amount of protective gas in the chamber Pack interior arrives, so that always very low Residual acid levels can be achieved.
- FIG. 1 shows an evacuation chamber in a simplified longitudinal section and Figure 2 a Fumigation device in a perspective view.
- the device 10 shown in Figure 1 for Evacuation and gassing of flexible foils Bag packs 1 have an evacuation chamber 11.
- the Evacuation chamber 11 consists of a stationary, in essential plate-shaped upper part 12, and an up and movable, pot-shaped lower part 13.
- a tube 14 with a not shown Vacuum source is connected in the evacuation chamber 11 .
- a sealing tool 15 for forming a closure seam in the Head area 2 of the bag package 1 arranged.
- the Sealing tool 15 has two movable against each other Sealing jaws 16, 17.
- the bag pack 1 is between two Holders 18, 19 clamped, the bag pack 1 during of evacuation and gassing in the evacuation chamber 11 fix.
- Above the sealing tool 15 and the The head region 2 of the bag pack 1 is one Fumigation device 20 arranged, just like that Sealing tool 15 preferably with the upper part 12 of the Evacuation chamber 11 is connected.
- the gassing device 20 has a strip-shaped, preferably cuboidal fumigation tube 21, the one slit-shaped opening 3 which is different from that of the Shoulders 4 of the bag pack 1 protrude like fins Head region 2 of the bag pack 1 is formed, covered.
- the opening 3 of the bag pack 1 facing bottom 22 of the fumigation tube 21 are several slit-shaped arranged parallel to each other Fumigation openings 23 are formed.
- the cheapest distance between the bottom 22 of the fumigation tube 21 and the In practice, opening 3 of bag pack 1 is a few Centimeters, and is determined on the basis of test series.
- the gassing openings 23 are one of the Fumigation tube 21 projecting feed 24 with a Shielding gas source connected.
- the arrangement of the Fumigation openings 23 is such that they are in essentially transverse, that is perpendicular to the opening 3 of the Extend bag pack 1.
- in 2 shows the fumigation tube 21 pivoted. In the operating position of the Fumigation tube 21, this is parallel over the Bag pack 1 aligned.
- the device 10 described above operates as follows: A previously filled and folded in the head area 2 Bag package 1 is in the lower end position Lower part 13 of the evacuation chamber 11 between the holders 18, 19 spent and held by them. Then will move the lower part 13 upwards, so that it with the Upper part 12 closes tightly. Then air is removed using the Vacuum source via the tube 14 from the interior of the Evacuated chamber 11 and the interior of the bag package.
- the aim is the air in the bag pack 1 or to reduce their oxygen to a longer Shelf life of the goods in bag 1, especially coffee. That goal will by means of simultaneous gassing of the goods an inert protective gas, in particular using nitrogen, supported.
- the bag pack 1 the protective gas with a certain overpressure, for example 0.5 bar, introduced.
- the inflowing protective gas causes a purging and Displacement of the inside of the bag package 1 air.
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vacuum Packaging (AREA)
- Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
- Oxygen, Ozone, And Oxides In General (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
Description
Die Erfindung betrifft eine Vorrichtung zum Evakuieren und Begasen von gefüllten Packungen, wie sie beispielsweise aus der DE-AS 11 77 065 bekannt geworden ist. Die bekannte Vorrichtung hat ein Mündungsstück, dessen Begasungsöffnungen nach unten in Richtung der Öffnung des von den Schultern der Packung flossenartig abstehenden Kopfbereichs der Packung und seitwärts gerichtet sind. Bei im wesentlichen starren Packungen, deren Kopfbereich und Öffnung sich stets an derselben Position in der Kammer befindet, ist mit der bekannten Vorrichtung eine Reduzierung des Restsauerstoffgehaltes in der Packung möglich. Bei den heutzutage üblicherweise verwendeten Packungen aus relativ dünnen und flexiblen Verpackungsfolien ist die genaue Position des Kopfbereichs bzw. der Öffnung der Packung in der Kammer jedoch Schwankungen unterworfen, so daß nicht sichergestellt ist, daß durch die nach unten weisenden, kreisförmigen Öffnungen des Begasungsrohres stets genügend Schutzgas in das Packungsinnere gelangt. Dadurch ergeben sich unerwünscht hohe Schwankungen des Restsauerstoffgehaltes im Packungsinnern. The invention relates to a device for evacuating and Fumigation of filled packs, such as from DE-AS 11 77 065 has become known. The well-known Device has a mouthpiece, the gassing openings down towards the opening of the shoulders of the Pack fin-like protruding head area of the pack and are directed sideways. At essentially rigid Packs, the head area and opening always on same position in the chamber is with the known device a reduction in Residual oxygen content possible in the pack. Both Packs commonly used nowadays are made from relative thin and flexible packaging film is the exact one Position of the head area or opening of the pack in the chamber, however, is subject to fluctuations, so that not it is ensured that the downward facing circular openings of the fumigation tube always sufficient Shielding gas gets inside the pack. This results in undesirable high fluctuations in the Residual oxygen content inside the pack.
Die erfindungsgemäße Vorrichtung zum Evakuieren und Begasen von gefüllten Packungen mit den kennzeichnenden Merkmalen des Anspruchs 1 hat demgegenüber den Vorteil, daß nahezu unabhängig von der Lage der Öffnung der Packung in der Kammer stets eine genügend hohe Menge an Schutzgas in das Packungsinnere gelangt, so daß stets sehr geringe Restsauergehalte erzielt werden können.The device for evacuation and gassing according to the invention of filled packs with the characteristic features of claim 1 has the advantage that almost regardless of the location of the opening of the package in the Always a sufficient amount of protective gas in the chamber Pack interior arrives, so that always very low Residual acid levels can be achieved.
Weitere Vorteile und vorteilhafte Weiterbildungen der erfindungsgemäßen Vorrichtung zum Evakuieren und Begasen von gefüllten Packungen ergeben sich aus den Unteransprüchen und der Beschreibung.Further advantages and advantageous developments of Device according to the invention for evacuating and gassing filled packs result from the subclaims and the description.
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt, und wird in der nachfolgenden Beschreibung näher erläutert. Es zeigen Figur 1 eine Evakuierkammer in einem vereinfachten Längsschnitt und die Figur 2 eine Begasungseinrichtung in einer perspektivischen Ansicht.An embodiment of the invention is in the drawing shown, and is in the description below explained in more detail. 1 shows an evacuation chamber in a simplified longitudinal section and Figure 2 a Fumigation device in a perspective view.
Die in der Figur 1 dargestellte Vorrichtung 10 zum
Evakuieren und Begasen von aus flexiblen Folien bestehenden
Beutelpackungen 1 weist eine Evakuierkammer 11 auf. Die
Evakuierkammer 11 besteht aus einem ortsfesten, im
wesentlichen plattenförmigen Oberteil 12, und einem auf- und
abbeweglichen, topfförmigen Unterteil 13. In das Oberteil 12
ragt ein Rohr 14, das mit einer nicht dargestellten
Unterdruckquelle verbunden ist. In der Evakuierkammer 11 ist
ein Siegelwerkzeug 15 zum Bilden einer Verschlußnaht in dem
Kopfbereich 2 der Beutelpackung 1 angeordnet. Das
Siegelwerkzeug 15 hat zwei gegeneinander verfahrbare
Siegelbacken 16, 17. Die Beutelpackung 1 ist zwischen zwei
Haltern 18, 19 eingeklemmt, die die Beutelpackung 1 während
des Evakuierens und Begasens in der Evakuierkammer 11
fixieren. Oberhalb des Siegelwerkzeugs 15 und des
Kopfbereichs 2 der Beutelpackung 1 ist eine
Begasungseinrichtung 20 angeordnet, die ebenso wie das
Siegelwerkzeug 15 vorzugsweise mit dem Oberteil 12 der
Evakuierkammer 11 verbunden ist.The
Die Begasungseinrichtung 20 weist ein leistenförmiges,
bevorzugt quaderförmig ausgebildetes Begasungsrohr 21 auf,
das eine schlitzförmige Öffnung 3, die von dem von den
Schultern 4 der Beutelpackung 1 flossenartig abstehenden
Kopfbereich 2 der Beutelpackung 1 ausgebildet ist,
überdeckt. In der der Öffnung 3 der Beutelpackung 1
zugewandten Unterseite 22 des Begasungsrohres 21 sind
mehrere parallel zueinander angeordnete, schlitzförmige
Begasungsöffnungen 23 ausgebildet. Der günstigste Abstand
zwischen der Unterseite 22 des Begasungsrohres 21 und der
Öffnung 3 der Beutelpackung 1 beträgt in der Praxis einige
Zentimeter, und wird anhand von Versuchsreihen ermittelt.
Die Begasungsöffnungen 23 sind über eine aus dem
Begasungsrohr 21 ragende Zuführung 24 mit einer
Schutzgasquelle verbunden. Die Anordnung der
Begasungsöffnungen 23 ist derart, daß sie sich im
wesentlichen quer, das heißt rechtwinklig zur Öffnung 3 der
Beutelpackung 1 erstrecken. Um dies zu verdeutlichen, ist in
der Figur 2 das Begasungsrohr 21 geschwenkt dargestellt. In
der in der Figur 1 dargestellten Betriebsstellung des
Begasungsrohres 21 ist dieses parallel über der
Beutelpackung 1 ausgerichtet.The
Die oben beschriebene Vorrichtung 10 arbeitet wie folgt:
Eine zuvor gefüllte und im Kopfbereich 2 gefaltete
Beutelpackung 1 wird bei in unterer Endlage befindlichem
Unterteil 13 der Evakuierkammer 11 zwischen die Halter 18,
19 verbracht und von diesen festgehalten. Anschließend wird
das Unterteil 13 nach oben verfahren, so daß es mit dem
Oberteil 12 dicht abschließt. Dann wird Luft mittels der
Unterdruckquelle über das Rohr 14 aus dem Innenraum der
Evakuierkammer 11 und dem Beutelpackungsinnern abgesaugt.
Ziel ist es, die in der Beutelpackung 1 befindliche Luft
bzw. deren Sauerstoff zu reduzieren, um eine längere
Haltbarkeit des in der Beutelpackung 1 befindlichen Gutes,
insbesondere Kaffee, zu ermöglichen. Dieses Ziel wird
mittels einer gleichzeitigen Begasung des Gutes mittels
eines inerten Schutzgases, insbesondere mittels Stickstoff,
unterstützt. Dazu wird in die Öffnung 3 der Beutelpackung 1
über die Begasungsöffnungen 23 das Schutzgas mit einem
bestimmten Überdruck, beispielsweise 0,5 bar, eingebracht.
Das einströmende Schutzgas bewirkt eine Durchspülung und
Verdrängung der in dem Innern der Beutelpackung 1
befindlichen Luft.The
Nach einer bestimmten Zeitdauer, wenn sichergestellt ist,
daß der gewünschte Restsauerstoffgehalt in der Beutelpackung
1 erreicht ist, fahren die beiden Siegelbacken 16, 17 des
Siegelwerkzeuges 15 gegeneinander, und bilden eine dichte
Verschlußnaht in dem Kopfbereich 2 der Beutelpackung 1.
Zuletzt wird wieder der Atmosphärendruck in der
Evakuierkammer 11 hergestellt, worauf das Unterteil 13 nach
unten verfahren wird, um die fertige Beutelpackung 1
auszuschleusen. After a certain period of time, if it is ensured
that the desired residual oxygen content in the bag package
1 is reached, the two
Durch die besondere Form und Anordnung der
Begasungsöffnungen 23 im Begasungsrohr 21 lassen sich
unabhängig von der exakten Position der Öffnung 3 der
Beutelpackung 1 in bezug auf das Begasungsrohr 21
überraschenderweise stets sehr niedrige
Restsauerstoffgehalte in den Beutelpackungen 1 erzielen.
Während dieser bei den bisher bekannten gattungsgemäßen
Vorrichtungen etwa 5% beträgt, sind mit der oben
beschiebenen Vorrichtung 10 Restsauerstoffgehalte von etwa
0,2 bis 0,4% erzielbar. Dies läßt sich dadurch erklären, daß
unabhängig von der aufgrund der Flexibilität der
Verpackungsfolie nicht exakt definierten Position des
Kopfbereichs 2 der Beutelpackung 1 unter dem Begasungsrohr
21 stets ein bestimmter, im wesentlichen konstanter Anteil
des Schutzgases in die Öffnung 3 gelangt. Der restliche
Anteil des Schutzgases streift seitlich an der Öffnung 3
vorbei, und trifft auf die Schultern 4 der Beutelpackung 1,
wobei diese stabilisiert werden, und so ein Aufblähen der
Beutelpackung 1 verhindern. Dadurch wird gleichzeitig das
Innere der Evakuierkammer 11 ebenfalls begast, so daß sich
keine oder nur geringe Druckunterschiede innerhalb der
Evakuierkammer 11 ausbilden. Diese geringen
Druckunterschiede in der Evakuierkammer 11 verhindern das
sonst übliche Rückbegasen der Beutelpackung 1, das heißt,
daß noch in der Evakuierkammer 11 befindliche Luft bzw.
Sauerstoff in das Innere der Beutelpackung 1 zurückströmt.Due to the special shape and arrangement of the
Mit der oben beschriebenen Ausbildung und Anordnung der
Begasungsöffnungen 23 lediglich an der Unterseite 22 des
Begasungsrohres 21 ist es darüber hinaus überraschenderweise
möglich, auf zusätzliche Öffnungen für das Schutzgas an den
Seitenflächen des Begasungsrohres 21 zu verzichten.With the design and arrangement of the
Claims (5)
- Device (10) for evacuating and introducing gas into filled pouches (1), having a chamber (11), which accommodates a pouch (1) and is connected to a reduced-pressure source, and having a gas-introduction pipe (21), which is arranged in the upper area of the chamber (11) and has gas-introduction openings (23), for feeding inert gas towards the open cross section (3) of the pouch (1), the gas-introduction pipe (21) extending in the longitudinal direction of the slot-like open cross section (3) of a pouch (1) which is to be accommodated in the chamber (11) and over the pouch (1), characterized in that the gas-introduction openings in the gas-introduction pipe (21) are designed as slots (23), and in that the slots (23) are arranged parallel to one another and at right angles to the longitudinal direction of the gas-introduction pipe (21) and to the open cross section of the pouch (1).
- Device according to Claim 1, characterized in that the gas-introduction openings (23) in the gas-introduction pipe (21) are formed only on its underside (22), which faces towards the open cross section (3) of the pouch (1).
- Device according to Claim 2, characterized in that the gas-introduction pipe (21) is of cuboidal design.
- Device according to one of Claims 1 to 3, characterized in that the inert gas flows out of the gas-introduction openings (23) in the gas-introduction pipe (21) under an excess pressure of about 0.5 bar.
- Device according to one of Claims 1 to 4, characterized in that the pouch is a bag (1) made from a flexible packaging film or foil, the open cross section (3) of which is formed in the top end area (2), which projects from the shoulders (4) of the bag (1) in the manner of a fin.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29619396U DE29619396U1 (en) | 1996-11-08 | 1996-11-08 | Device for evacuating and gassing filled packs |
| DE29619396U | 1996-11-08 | ||
| PCT/DE1997/002065 WO1998021099A1 (en) | 1996-11-08 | 1997-09-13 | Vacuum and gas-flush packaging device for filled pouches |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0942870A1 EP0942870A1 (en) | 1999-09-22 |
| EP0942870B1 true EP0942870B1 (en) | 2000-12-20 |
Family
ID=8031641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP97909132A Expired - Lifetime EP0942870B1 (en) | 1996-11-08 | 1997-09-13 | Vacuum and gas-flush packaging device for filled pouches |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0942870B1 (en) |
| JP (1) | JP2001504064A (en) |
| BR (1) | BR9713336A (en) |
| DE (2) | DE29619396U1 (en) |
| ES (1) | ES2153652T3 (en) |
| WO (1) | WO1998021099A1 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003024804A1 (en) * | 2001-09-14 | 2003-03-27 | Sealed Air (New Zealand) Limited | Vacuum gas flush packaging machine |
| CZ13585U1 (en) * | 2003-03-21 | 2003-08-18 | Jan Ing. Mašek | Device for making deep vacuum |
| ITVR20060181A1 (en) * | 2006-11-24 | 2008-05-25 | Marziano Salvaro | EQUIPMENT FOR VACUUM PACKAGING OF FOOD PRODUCTS |
| DE102009002441A1 (en) * | 2009-04-16 | 2010-10-21 | Robert Bosch Gmbh | Apparatus and method for aligning packaging |
| CN102295082B (en) * | 2011-05-20 | 2013-01-23 | 苏州工业园区森德保鲜科技有限公司 | Vacuum aerating and packaging equipment |
| JP6319787B2 (en) * | 2013-12-04 | 2018-05-09 | 株式会社古川製作所 | Gas replacement packaging equipment |
| CN106742216A (en) * | 2016-11-24 | 2017-05-31 | 北京百灵威科技有限公司 | A kind of packing method of anhydrous and oxygen-free solvent |
| CN107054781A (en) * | 2017-03-21 | 2017-08-18 | 温州市鸿瑛机械有限公司 | Packing machine sack cleaning plant |
| DE102021003048A1 (en) * | 2021-06-02 | 2022-12-08 | Dürr Somac GmbH | Device for filling a non-vacuum-tight system using vacuum-pressure filling |
| CN114834709A (en) * | 2022-04-27 | 2022-08-02 | 张志坚 | Sealing method, sealing device and packaging equipment for packaging bag |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1177065B (en) * | 1961-06-30 | 1964-08-27 | Hesser Ag Maschf | Chamber for evacuating and gassing filled packages of all kinds |
-
1996
- 1996-11-08 DE DE29619396U patent/DE29619396U1/en not_active Expired - Lifetime
-
1997
- 1997-09-13 WO PCT/DE1997/002065 patent/WO1998021099A1/en active IP Right Grant
- 1997-09-13 ES ES97909132T patent/ES2153652T3/en not_active Expired - Lifetime
- 1997-09-13 EP EP97909132A patent/EP0942870B1/en not_active Expired - Lifetime
- 1997-09-13 DE DE59702795T patent/DE59702795D1/en not_active Expired - Lifetime
- 1997-09-13 BR BR9713336-1A patent/BR9713336A/en active Search and Examination
- 1997-09-13 JP JP52200798A patent/JP2001504064A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE29619396U1 (en) | 1998-03-05 |
| WO1998021099A1 (en) | 1998-05-22 |
| BR9713336A (en) | 2000-05-09 |
| ES2153652T3 (en) | 2001-03-01 |
| EP0942870A1 (en) | 1999-09-22 |
| DE59702795D1 (en) | 2001-01-25 |
| JP2001504064A (en) | 2001-03-27 |
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