EP0751894A1 - Vorrichtung zum schutz der vakuumpumpe vor evakuierflüssigkeiten - Google Patents
Vorrichtung zum schutz der vakuumpumpe vor evakuierflüssigkeitenInfo
- Publication number
- EP0751894A1 EP0751894A1 EP95913857A EP95913857A EP0751894A1 EP 0751894 A1 EP0751894 A1 EP 0751894A1 EP 95913857 A EP95913857 A EP 95913857A EP 95913857 A EP95913857 A EP 95913857A EP 0751894 A1 EP0751894 A1 EP 0751894A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hose
- receptacle
- vacuum
- connection
- boiler
- 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
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
- B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
Definitions
- the invention relates to a device for producing a vacuum in rigid or flexible containers, in particular a vacuum packaging machine with a receptacle for the goods, a vacuum pump integrated in the receptacle and a connecting hose which is coupled to a connection bore opening into the interior of the receptacle.
- Vacuum packaging machines of this type are used to make certain supplies, such as sliced sausage, more durable.
- these foods such as liver sausage, salads, soft cheese and. ⁇ . placed in a corresponding container, which is locked and which is connected to a vacuum pump to draw vacuum in the container. Bags are filled with food in the same way, whereupon the air is sucked out of the bag and the bag is then sealed.
- the receptacle has a correspondingly large interior space, into which a corresponding foil bag is hung in order to then be filled with the food.
- the receptacle is closed and sucked empty via a vacuum pump which is generally integrated into the receptacle, for which purpose the vacuum pump is connected to the interior via a connecting hose and a connection hole, so that a vacuum in the interior is uniformly applied via the vacuum pump of the receptacle can be generated and thus also within the foil bag. After reaching the vacuum, this foil pouch is then sealed, so that the goods or food contained is protected from spoilage for a long time. Suitable pulling devices and control devices can be used to pull the Vacuum can be set and monitored. If external containers are to be vacuumed, a corresponding longer tube is connected to the connecting tube, which represents the connection to the external container to be vacuumed.
- Vacuum is then drawn simultaneously in the receptacle and in the connected container, but this has no disadvantageous effects, even if the receptacle itself would not necessarily have to be placed under vacuum during this time.
- the costs for such vacuum pumps are relatively high, so that the damage thus caused means that air is usually only drawn off from external containers and a vacuum is created when these external containers do not contain any liquids.
- the invention has for its object to provide a device for vacuuming food-holding containers, the vacuum pump of which is protected even in the case of fallen containers from the penetration of food components, in particular liquids.
- a hose connection is provided on the outer wall of the receptacle, which has a connection to the interior via at least one bore, and that the hose connected there is connected with its free end to a container to be vacuumed, preferably a gastronorm container is.
- the interior or the entire receptacle acts as a blind tank, which first of all absorbs the liquids that are sucked in. takes and practically only forwards them in the direction of the vacuum pump when the entire interior is filled with the liquid or the corresponding food.
- the vacuum pump first of all sucks the interior of the receptacle empty via the connecting hose and the corresponding connection bore, in order to then or simultaneously also act on the gastronorm container or other container via the hose. It is conceivable that the receptacle is first applied to a vacuum by means of a corresponding circuit, only then to place the gastronorm container further behind, under a vacuum, as it were with a push.
- the existing device can be used in practice, which only has to be expanded accordingly.
- the interior of the receptacle is quite large, so that work can be carried out without problems even when there are large streaks of bad luck without fear of destruction or damage to the vacuum pump. If such a case occurs, it is easily recognizable because the lid of the receptacle is made of plexiglass, so that the user can quickly determine that "something is wrong”. Damage does not occur, but it is then only necessary to clean the interior of the receptacle in order to then go back into operation immediately.
- a further expedient embodiment of the invention provides that the hose connection is arranged on the upper edge of the receptacle.
- the hose connection is arranged on the upper edge of the receptacle.
- practically the entire volume of the receptacle is available as a buffer or as a dummy boiler, so that even larger gastronorm containers can be vacuumed without any problems, since damage to the vacuum pump cannot occur even if food is tipped over and sucked in appropriately.
- the invention provides that one protruding into the interior of the receptacle before the hose connection or the bore Air throttle is arranged.
- This air throttle which, according to an expedient development of the invention, is also arranged on the outlet-side hose connection bore, also prevents an air blow from the vacuum pump practically having an effect on the flexible casing which is in normal operation in the receptacle.
- the sucked-in air flow is rather made uniform by the air throttle, so that the problems described cannot occur, in particular the film cannot be quasi pressed or sucked onto the hose connection, which would lead to considerable problems.
- this air throttle provides that it is formed by a circular plate and a web fixed to the inner wall.
- This approximately one 5-mark piece plate can be supported by a correspondingly simple web or two correspondingly thin webs in such a way that they reliably meet the loads that occur.
- the air throttle seated on the bore of the inlet-side hose connection has a special plate that has an outer edge that is curved toward the inner wall.
- the device according to the invention uses the device used for other purposes Receiving container, wherein according to the invention a quick and safe changeover is made possible, namely that the hose connection and the hose end are designed to act together as a quick-release coupling.
- One part of the quick-release coupling sits on the hose connection, the other on the hose end, so that the parts can be plugged onto one another practically in order to quickly achieve a permanent connection. They can just as easily be taken apart again, which is usually done using a spring-loaded thrust ring.
- the device according to the invention is ready for operation and practically any external gastronorm container can be vacuumed without the risk that liquid may get into the vacuum pump. Any entrained liquid or other food residues would always be thrown against the air throttle and then sink into the receptacle, where they can be easily removed.
- the vacuum in the receptacle is to be maintained, for example if a gastronorm container is suitably vacuumed and a second one is now to be connected, it is advantageous if a non-return valve blocking the interior is integrated in the hose connection.
- the check valve is thus automatically closed when the vacuum pump is switched off, so that the vacuum present in the receptacle cannot evaporate.
- the hose connection can also be integrated in the cover of the receptacle according to a further development of the invention. Similar to the arrangement at the upper edge of the inner wall, this arrangement also ensures that when liquid is sucked into the receptacle, this liquid cannot be sucked in by mistake through the opposite connection hole and can be led to the vacuum pump. If for some reason the receptacle should be kept free and not serve as a quasi dummy boiler, it is possible according to the invention that the hose connection is coupled to the connecting hose which is laid in the double wall of the receptacle and that the hose is connected via an intermediate blind boiler, the volume of which roughly corresponds to that of a gastronorm container.
- the gastronorm container means one of the large-volume gastronorm containers and not an extremely small size.
- the purpose of the dummy kettle is to ensure that any liquid or other substances that have been sucked in can also be safely deposited in the dummy kettle without the risk of these foods being sucked into the vacuum pump. Similar to liquids, the vacuum pump reacts allergically to corresponding dusts, so that it is advisable in any case to interpose a dummy boiler in such a case.
- the hose is separated at any point and opens into the blind pot at two points, so that the food which is possibly also accidentally sucked in can be collected and removed without problems.
- the blind boiler has two partial boilers which are detachably connected to one another, one being designed to receive the hose ends and the other to have the receiving space.
- the partial boiler receiving the hose ends can thus remain in the installed form if the receiving space should be completely filled.
- the corresponding partial boiler is simply detached from the first partial boiler and then cleaned and emptied accordingly in order to then be available for use again.
- This design is also advantageous because the partial boiler having the receiving space can of course be cleaned more easily than a correspondingly complex overall boiler.
- the side walls and / or the bottom of the partial kettle inserted in the partial kettle having the receiving space are perforated.
- the sucked-in foodstuffs are thus first sucked into the region of the upper partial boiler, which is arranged somewhat more deeply, for example, in order then to be separated into solid and liquid parts.
- the liquid parts can flow through the side walls and / or the floor into the lower part of the boiler.
- the invention is characterized in particular by the fact that a device is created which can be used advantageously in the vacuuming of food, in particular, and which also uses available aggregates, at least to a large extent.
- the corresponding securing device is very versatile because an integrated system is available via the large receptacle, which has high performance. Quasi the other part of the vacuum device is simply connected to the interior of the receptacle via a plug connection, so that the the negative pressure prevailing there is automatically and quickly established in the container to be vacuumed and arranged outside.
- the container located outside and to be vacuumed is connected to the interior of the receptacle via a hose in a practically simple manner, so that the interior of the receptacle serves as a safety zone against the ingress of liquid into the vacuum pump.
- 1 is a perspective view of the securing device
- FIG. 3 shows a further illustration of the section according to FIG. 2,
- Fig. 4 is a perspective view of a
- Fig. 5 is a diagram of a stand-alone vacuum pump with a dummy boiler.
- the securing device 1 shown in FIG. 1 consists first of all of the cube-like receptacle 2 here, the interior 3 of which can be equipped, for example, with film containers and foodstuffs via the cover 4.
- the cover 4 is shown partially folded up.
- a connection bore 5 is visible on the back of the receptacle 2 and is connected to the vacuum pump (not shown here) via a connecting hose 7 laid in the double wall 6.
- the vacuum pump By running the vacuum pump, the entire interior 3 can thus be brought under vacuum.
- Foil bags over the foil connector 8 the interior 3 can then be brought back to normal pressure so that the vacuumed bags can be removed.
- a pressure indicator 9 can be seen, which makes it easy for the operator to see how far the vacuum in the interior 3 has progressed.
- a control panel 10 is also provided on the front, via which the various necessary functions can be achieved or initiated.
- closures 12, 13 are provided, by means of which the cover 4 can be fixed when vacuum is to be drawn in the interior 3.
- a hose connection 15 is provided, which is connected to the interior 3 via at least one bore 17 or 18 or enables a connection to the interior 3.
- the hose 19 indicated here can be connected to this hose connection 15 and has a plug-shaped part at the hose end 27 for this purpose. This is a tendon 11 closure coupling, the corresponding parts of the hose end 27 and the hose connection 15 being designed correspondingly.
- the hose 19 has a connecting part with a gastronorm container 21, so that vacuum can be generated in this gastronorm container 21 when the hose 19 is appropriately applied.
- FIG. 2 Even at high pressure, accidental entrainment of liquid from the hose connection 15 to the connection bore 5 is excluded because an air throttle 22 is provided on the inner wall 24 of the receiving container 2, which is shown enlarged in FIG. 2 and in FIG. 3 is.
- This air throttle 22 consists of a plate 23 and a web 25, it being possible for two or three webs to be provided instead of the web 25 in order to secure the plate 23.
- FIG. 3 additionally illustrates that the outer edge 23 can be bent towards the inner wall 24 in order to forcibly bring liquid that is also flung with it to the inner wall 24.
- FIG. 2 shows an embodiment in which the air throttle 22 is combined with a check valve 28, which ensures that the vacuum effect which has been sucked in and achieved is retained in the receiving container 2 if, for example, the gastronorm container 21 is replaced by a new Gastronorm container to be replaced. If the new gastronorm container is then connected, vacuum does not have to be generated in the interior 3 of the receptacle 2 again, but it is already present here due to the check valve 28.
- FIG. 4 shows a somewhat different embodiment, in which a blind tank 30 is connected in the hose 19, which serves to catch any liquids that may also be sucked in, if one does not want to impair the interior 3 of the receptacle 2 accordingly.
- the free end 20 is connected to one side of the dummy boiler 30, while the hose end 29 is connected to the other side.
- FIG. 5 finally shows an embodiment in which a stand-alone pump 32 is used, which is supplied to the consumer (not shown here) via the hose 19 is connected and which can also be a gas standard container 21. Therefore, the hose 19 is also drawn with an arc in the direction of FIG. 4.
- a blind boiler 30 consisting of the two partial boilers 33, 34 is switched into the hose 19, the two partial boilers being releasably connected to one another.
- the partial boiler 33 is partially shown extending into the partial boiler 34, recesses 37 being provided in the side walls 36 and / or in the bottom, so that when liquid enters the partial boiler 33 into the Part boiler 34 arrives.
- the free end 20 of the hose 19 is connected to the upper partial boiler 33 and opposite the hose end 29, an air throttle 22 being arranged upstream of this or both. Both hose connections 20 and also 29 are provided on the upper edge 38 of the partial boiler 33.
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vacuum Packaging (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4410290A DE4410290A1 (de) | 1994-03-25 | 1994-03-25 | Vorrichtung zum Schutz der Vakuumpumpe vor Evakuierflüssigkeiten |
DE4410290 | 1994-03-25 | ||
PCT/DE1995/000396 WO1995026298A1 (de) | 1994-03-25 | 1995-03-24 | Vorrichtung zum schutz der vakuumpumpe vor evakuierflüssigkeiten |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0751894A1 true EP0751894A1 (de) | 1997-01-08 |
EP0751894B1 EP0751894B1 (de) | 1998-12-30 |
Family
ID=6513776
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95913857A Expired - Lifetime EP0751894B1 (de) | 1994-03-25 | 1995-03-24 | Vorrichtung zum schutz einer vakuumpumpe vor flüssigkeiten die in einem zu evakuierenden behälter enthalten sind |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0751894B1 (de) |
AT (1) | ATE175163T1 (de) |
AU (1) | AU2108395A (de) |
DE (2) | DE4410290A1 (de) |
WO (1) | WO1995026298A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19748362A1 (de) * | 1997-11-03 | 1999-05-06 | Zeolith Tech | Verfahren zum Kühlen und/oder Gefrieren wasserhaltiger Produkte |
CN113800134B (zh) * | 2021-11-17 | 2022-02-01 | 山东颐工材料科技股份有限公司 | 一种pvc塑料抗冲剂生产用真空缓存罐 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2397330A1 (fr) * | 1977-07-11 | 1979-02-09 | Derigon Ind | Dispositif de conditionnement et de mise en forme, sous vide d'un produit prealablement emballe |
EP0419736B1 (de) * | 1989-09-25 | 1994-01-12 | Everfresh Mfg Corporation | Vorrichtung zum Vakuumverpacken verderblicher Nahrungsmittel |
DE9212509U1 (de) * | 1992-09-17 | 1993-01-28 | Wollert, Hartwig, 4100 Duisburg | Verschluß zur Schaffung eines vakuumgeeigneten Gastronormbehälters |
-
1994
- 1994-03-25 DE DE4410290A patent/DE4410290A1/de not_active Withdrawn
-
1995
- 1995-03-24 WO PCT/DE1995/000396 patent/WO1995026298A1/de active IP Right Grant
- 1995-03-24 AU AU21083/95A patent/AU2108395A/en not_active Abandoned
- 1995-03-24 EP EP95913857A patent/EP0751894B1/de not_active Expired - Lifetime
- 1995-03-24 AT AT95913857T patent/ATE175163T1/de not_active IP Right Cessation
- 1995-03-24 DE DE59504694T patent/DE59504694D1/de not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO9526298A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE59504694D1 (de) | 1999-02-11 |
DE4410290A1 (de) | 1995-10-26 |
EP0751894B1 (de) | 1998-12-30 |
AU2108395A (en) | 1995-10-17 |
WO1995026298A1 (de) | 1995-10-05 |
ATE175163T1 (de) | 1999-01-15 |
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