EP2103520B1 - Handling device and method for handling an open sack filled with bulk goods - Google Patents
Handling device and method for handling an open sack filled with bulk goods Download PDFInfo
- Publication number
- EP2103520B1 EP2103520B1 EP09003733A EP09003733A EP2103520B1 EP 2103520 B1 EP2103520 B1 EP 2103520B1 EP 09003733 A EP09003733 A EP 09003733A EP 09003733 A EP09003733 A EP 09003733A EP 2103520 B1 EP2103520 B1 EP 2103520B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bag
- treatment
- clamping
- suction
- cleaning
- 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.)
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Links
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000004140 cleaning Methods 0.000 claims abstract description 85
- 239000013590 bulk material Substances 0.000 claims abstract description 15
- 238000004806 packaging method and process Methods 0.000 claims abstract description 3
- 238000003780 insertion Methods 0.000 claims description 10
- 230000037431 insertion Effects 0.000 claims description 10
- 230000033001 locomotion Effects 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 8
- 241000252254 Catostomidae Species 0.000 claims description 6
- 238000013459 approach Methods 0.000 claims description 3
- 238000007654 immersion Methods 0.000 abstract description 34
- 239000000047 product Substances 0.000 description 20
- 230000008901 benefit Effects 0.000 description 6
- 239000002245 particle Substances 0.000 description 5
- 238000012546 transfer Methods 0.000 description 5
- 238000013022 venting Methods 0.000 description 5
- 238000003466 welding Methods 0.000 description 5
- 238000007598 dipping method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000012856 packing Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 229920006255 plastic film Polymers 0.000 description 2
- 239000004566 building material Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 235000013882 gravy Nutrition 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000009423 ventilation 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
- B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
- B65B1/20—Reducing volume of filled material
- B65B1/26—Reducing volume of filled material by pneumatic means, e.g. suction
-
- 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
- B65B31/041—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 acting from above on containers or wrappers open at their top
- B65B31/042—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 acting from above on containers or wrappers open at their top the nozzles being arranged for insertion into, and withdrawal from, the container or wrapper
-
- 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
- B65B55/00—Preserving, protecting or purifying packages or package contents in association with packaging
- B65B55/24—Cleaning of, or removing dust from, containers, wrappers, or packaging ; Preventing of fouling
-
- 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
- B65B51/146—Closing bags
-
- 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
- B65B7/00—Closing containers or receptacles after filling
- B65B7/02—Closing containers or receptacles deformed by, or taking-up shape, of, contents, e.g. bags, sacks
Definitions
- the present invention relates to a treatment device and a method for treating an open bag, in particular filled with a bulk material, wherein the bag is filled in particular with a pulverulent or powdery dusty product and is closed at a closing station.
- Open sacks are often made of plastic film that protects the bag contents from moisture.
- building materials such as cement are increasingly being filled into open sacks made of plastic film. These offer the considerable advantage that they do not usually have to be protected from rain on the construction site.
- air channels are provided in the bag wall, through which part of the still contained air escapes at the applied pressing pressure. But through these channels not only air can escape from the interior of the bag to the outside, but in unfavorable cases it can also happen that moisture from the outside enters the bag, which can spoil the product. In addition, product can also escape.
- a method for filling open sacks with powdery material has become known, after which the sack is first shaped and a first, lower end is closed. After filling and before closing the bag, a suction device is inserted at the top of a side end of the bag into the interior of the bag and there is sucked out excess air from the bag. In addition, a traveling cleaning device along the The top opening of the bag is reciprocated from one side to the other side to clean the inner top edge of the bag with an air jet during reciprocation with the cleaning device, thereby removing particles.
- a disadvantage of this known state of the art is the considerable expense with the suction device dipping into the bag and the additional cleaning device. Both the suction device and the cleaning device must be moved to the bag in each case. In addition, the cleaning device still has to be automatically moved back and forth along the upper edge.
- the object of the present invention to provide a treatment device and a closure station, as well as a method for treating a filled open bag, thus enabling effective venting and reliable closing of a filled open bag.
- the effort should be less than in the known state of the art.
- a packing machine according to the invention is the subject of claim 12.
- the inventive Method is the subject of claim 13.
- Preferred developments of the invention are the subject of the respective subclaims. Further advantageous features and embodiments of the invention are illustrated in the embodiment.
- the treatment device according to the invention for treating an open bag filled with a bulk material comprises at least one suction device for extracting air from the head space of the open bag and at least one cleaning device for cleaning the bag opening of the bag.
- the suction device and the cleaning device are arranged on a common treatment unit or a common treatment body.
- the treatment body is movable between at least one treatment position and at least one rest position.
- the suction device is intended to submerge in the treatment position in the headspace of the bag, while the cleaning device at least substantially and in particular remains completely outside the bag interior.
- a clamping device is provided for gripping and clamping the upper bag wall of an open bag.
- the clamping device comprises at least two terminal strips, each with two clamping units.
- Each clamping strip comprises at least one suction unit, which is provided between the two clamping units.
- the treatment device according to the invention has many advantages.
- a significant advantage is that at the same time a suction of the residual air contained in the bag volume and a cleaning of the bag wall in the upper bag opening is possible. This allows a faster and more effective treatment of the bags.
- the common treatment unit or provided on a common treatment body suction device and also provided thereon cleaning device can with only one controlled movement of the upper bag edge inside be cleaned while sucking off excess air at the same time.
- each unit must be introduced separately in the upper bag opening.
- the common treatment body with only one movement immersed in the upper opening of the bag. This represents a considerable simplification. For example, only one drive is needed.
- the suction device of the treatment device dips into the head space and in particular only into the headspace of the bag above the product level or filling material level, an effective and rapid suction is made possible, the suction of bottled product being reliably prevented.
- the treatment device allows a drastic reduction of the residual air remaining in the filled bag, wherein the residual air in the bag is reduced in particular such that it is possible to dispense with a downstream pressing section.
- the air volume discharged from the head space of the filled bag preferably corresponds approximately to the residual air volume typically pressed out in a press section, so that a separate pressing of the bags can be dispensed with.
- the palletizing capability of the bags treated according to the invention increases.
- the treatment device prefferably be used in a packing machine which produces open sacks from a continuous film web and then fills these open sacks with the bulk material before they are treated with the treatment device according to the invention, whereupon the open sacks are replaced by a sack Welding process are sealed.
- the treatment device may be part of a packaging machine, which fills pre-assembled open bags with a bulk material and then closes.
- the treatment body comprises a particular elongated and preferably approximately strip-shaped body.
- the body extends over a substantial portion of the width of the bag.
- the length of the main body can correspond approximately to the width of the bag and preferably extends over a proportion of between about 50% and almost 100% of the width of the bag.
- an immersion unit for immersion in the headspace of an open bag is provided approximately in the middle of the particular strip-shaped base body.
- the immersion unit can be designed, for example, as a dip-in sword and protrude in the intended use of the strip-shaped base body down.
- the length of the immersion unit is in particular smaller the length of the main body.
- the length of the immersion unit is approximately in a range between 5% and 75% of the length of the base body and preferably in a range between 20% and 50% of the length of the base body.
- the length of the immersion unit is z. B. between 5% and 50% of the width of the bags to be closed.
- the treatment body may in particular consist of the strip-shaped main body and the immersion unit. Further, a guide member or the like may be disposed on the treatment body to transfer the treatment body from the rest position to the treatment position and back.
- the suction device is formed on the immersion unit and comprises at least one suction channel.
- at least one suction channel opens in a region of the (lower) tip of the immersion unit so as to be located in the treatment position at the lowermost position.
- the dipping unit has an elongated cross-section which tapers towards the ends, so that a fold-free application of the bag around the dipping unit is possible.
- the immersion unit is introduced into the headspace, wherein the upper bag wall applies to the outside of the immersion unit and is held there by suitable means.
- the immersion unit is introduced into the bag, at the lower end of the suction channel opens.
- the cleaning device preferably comprises a plurality of cleaning nozzles.
- the cleaning nozzles are provided on the elongated and in particular strip-shaped base body and serve to clean the upper inner bag wall, in particular to allow a reliable closing of the bag opening.
- Some of the cleaning nozzles are in particular provided as in particular lateral cleaning nozzles and some as lower cleaning nozzles to the cleaning air to the side or down to blow.
- the cleaning nozzles preferably surround the suction channel or the suction channels in the radial direction.
- the cleaning nozzles are exposed to air and blow air onto the part of the bag to be cleaned, namely in particular the upper inner bag wall in the region of the bag opening.
- the cleaning nozzles are aligned to the sides and downwards.
- the cleaning nozzles are preferably aligned on the elongated and in particular strip-shaped base body downwards, while they are provided on the immersion unit only at the upper end in the vicinity of the strip-shaped base body and aligned there to the side.
- the laterally directed cleaning nozzles are not immersed in the headspace of the bag, but can blow air on the upper inner bag wall of the upper bag opening to clean them of product particles and so a reliable closing of the upper bag opening following the suction to allow the residual air.
- the treatment device comprises at least one clamping device for gripping and clamping the upper bag wall of the open bag. Furthermore, a closing device for closing the bag opening of the bag can be provided, which closes the bag directly after the extraction of air from the open bag by means of a suction device. This offers considerable advantages, since the bag does not have to be transported or re-gripped before closing, which ensures that no more air enters the bag and thus the position and shape of the bag are preserved. Wrinkling in the bag wall during transfer is avoided.
- the clamping device comprises at least two terminal strips, each with two clamping units.
- the width of the clamping units or a spacing of the clamping units of each clamping strip is preferably variable.
- the clamping units of a terminal block are movable towards and away from each other.
- the suction unit is provided in a central region of the clamping device or the clamping strip approximately in the middle between the two clamping units.
- the suction unit allows the suction of the bag wall, while the bag wall remains clamped simultaneously by the clamping units.
- a total of at least four suckers are provided, of which two are arranged opposite each other.
- the suction cups allow a defined suction of the bag wall in a central area, while at the same time the clamping units hold the bag.
- the two clamping units of one or each clamping strip and the suction unit of the clamping strip are preferably coupled to one another in a movement-coupled manner.
- the coupling of the movement can e.g. take place via a pivot lever, so that a deflection of the movement takes place.
- the two clamping units of a clamping bar move away from each other along their connecting line and when the vacuum units moved away from the bag, move the two clamping units of a terminal strip along its connecting line to each other.
- bag material is released in order to release an opening in the bag, through which the immersion unit can subsequently dip from above into the bag.
- the clamping units may be simultaneously moved independently inwardly toward the nipple unit to allow controlled opening of the sack in a central area.
- the common treatment device or the suction device of the treatment device can be introduced.
- the defined opening and the suction device are preferably adapted to each other in terms of size.
- the suction units After immersing the immersion unit, the suction units are moved back to the bag in both terminal strips, which at the same time drive apart the clamping units of each terminal strip again.
- the bag wall is applied to the immersion unit and closes the upper bag opening tight. This ensures that the suction only sucks air from the headspace of the bag and not about air from the outside, which gets into the bag inside via leaks.
- a support device which supports the bag at least in the treatment position.
- the support means may support the bag from below and / or from the side.
- the support device raises the bag during the aspiration of the head air located above the product level in order to facilitate the suction process and to keep the vacuum necessary for suction low. As a result, the suction of product particles is effectively avoided.
- the support means may for example be designed as a particular height-adjustable vibrating table or the like and not only support the bag, but also promote the venting of the bag by a vibration movement.
- a supporting device formed by a conveyor belt is also preferred, which removes the bag after the suction and optionally closed the bag.
- the treatment device takes over the filled bag from a transfer device, which has, for example, spreading and alignment jaws which grasp the bag and align the upper bag wall horizontally in order to ensure correct further processing.
- a closing station according to the invention has in particular a treatment device described above.
- a closing station for closing an open bag, in particular filled with a bulk material, can have a clamping device for gripping and clamping the upper bag wall of an open bag, as well as a closing device for closing the bag opening of the bag.
- At least one suction device for sucking air out of the open bag and at least one cleaning device for cleaning the upper bag wall in the region of the bag opening of the bag can be provided.
- the suction device and the cleaning device are provided on a common treatment device which is movable between a treatment position and a rest position, wherein the suction device is immersed in the treatment position in the head space of the bag to suck air from the headspace while the cleaning device remains outside.
- the packing machine comprises at least one filling element for filling bulk goods in open sacks, wherein at least one treatment device is provided for treating an open bag filled with a bulk material, which comprises at least one suction device for sucking air out of the headspace of the open bag and at least one cleaning device for cleaning the bag opening of the filled bag.
- a clamping device for gripping and clamping the upper bag wall of an open bag, wherein the clamping device comprises at least two terminal strips each having two clamping units.
- Each clamping strip comprises at least one suction unit, which is provided in a central region of the clamping device between the two clamping units.
- the suction device and the cleaning device are arranged on a common treatment unit and in particular a common treatment body, wherein the treatment unit or the treatment body between a treatment position and at least one rest position is movable.
- the suction device is intended to immerse in the treatment position in the bag interior of the filled bag, while the cleaning device remains at least substantially outside.
- the inventive method is used to treat a filled with a bulk open bag.
- the upper bag wall of an open bag is gripped and in particular clamped with a clamping device and a suction device of a treatment device is introduced into the headspace of the bag and air is sucked out of the headspace of the bag while a cleaning device of the treatment device by means of cleaning air on the upper bag wall blows to clean the upper bag wall before closing-
- the upper bag wall is gripped by at least two terminal strips, each with two clamping units, which are moved towards each other, while between the terminal units sucker open an insertion in the upper bag wall to the suction device introduce the treatment device and bring the cleaning device to the upper inner bag wall.
- the upper bag wall is gripped by two clamping units which are moved towards each other, while preferably centrally between the clamping units suction open an insertion in the upper bag wall to introduce the suction device of the treatment device and bring the bag cleaning device to the upper bag wall, so that a effective suction and effective cleaning of the top bag wall is made possible.
- a closure station 1 with a treatment device 10 in a rest position 9 is shown.
- the filled with a bulk bag 3 has in its headspace 2 a certain proportion of air, which should be at least partially removed after the acquisition and before closing the bag 3.
- the bag 3 is taken, for example, from a filling station, not shown, to excess from the head space 2 of the bag interior 11 above the product level 41 To suck air, to clean the upper bag wall 25 and to close the bag 3, which is done in particular by welding to the closing device 24. After sucking off the air from the head space 2, a transfer is not required before closing the bag 3, since a closing device 24 is provided at the closing station 1.
- the treatment device 10 comprises the in Fig. 2 shown in a side view treatment body 7, which consists essentially of an elongated and here about strip-shaped base body 12 and a dipping unit 13, wherein the immersion unit 13 extends in a central region 14 of the base body 12 downwardly and from the elongated body 12 from projects.
- the treatment body 7 is moved by means of a traversing unit 19 between a treatment position 8 and a rest position 9.
- the treatment device 10 comprises a suction device 4 and a cleaning device 5 on a common treatment body 7 or on a common treatment unit.
- the common treatment body 7 may be formed in one piece or consist of two or more interconnected parts, which together form a jointly movable unit.
- the cleaning device 5 is provided, which is provided with a plurality of cleaning nozzles 20.
- the cleaning nozzles 20 are provided on the sides 21 of the strip-shaped basic body 12 as lateral cleaning nozzles 20a and on the underside 22 of the strip-shaped basic body 12 as lower cleaning nozzles 20b.
- the lateral cleaning nozzles 20a are here formed on a cleaning projection 39, which is part of the base body 12 and from which the immersion unit 13 extends away.
- the cleaning nozzles 20a provided on page 21 serve to clean the upper inner bag wall 25 from the side, while the cleaning nozzles 20b on the bottom 22 blow the top bag wall 25 from above with air to clean them.
- the immersion unit 13 dives into the sack opening 6.
- the cleaning approach 39 does not dive into the bag interior 11, but enters between the upper ends of the upper bag wall 25, so that the lateral cleaning nozzles 20 a, the upper inner bag walls 25 of product dust and the like clean when they are activated.
- the gusset areas of the sacks 3 are also cleaned by the cleaning nozzles 20b provided on the underside 22.
- the closure zone 40 or welding zone of the bags 3 is freed of product, so that a reliable and permanent welding of the upper bag wall 25 is possible. An impairment of the seal by product particles is reliably avoided.
- the treatment device 7 or the treatment body 7 also serves for the extraction of air from the head space 2 of a bag 3.
- the treatment body 7 with the immersion unit 13 dips into the head space 2 of a bag 3 filled with a bulk material and sucks via the suction channel 16 at the lower tip 15, the air present in the headspace 2 from. Since the suction channel 16 is not immersed in the product level, but only in the head space 2 of the bag 3, the suction of product from the head space 2 is reliably avoided.
- a support unit 38 supports the bag 3 and raises the bag 3 during the suction, so that the vacuum required for suction can be reduced, since not the entire bag weight must be kept by the suction device 4.
- the upper bag wall 25 applies the suction of the air from the headspace 2 smoothly to the immersion unit 13, which is Immersion unit 13 in cross section designed so that the ends 17 and 18 taper.
- Fig. 3 the closing station 1 is shown with the treatment device 10 in the rest position 9.
- the clamping bars 26 and 27 have seized the bag 3 and open the bag 3 defined, so that the treatment body 7 of the in Fig. 3 illustrated rest position 9 in the in Fig. 4 illustrated treatment position 8 can be converted, in which the immersion unit 13 of the treatment body 7 is immersed in the head space 2 of the bag 3, there to suck the existing head air, while the cleaning device 5 simultaneously cleans the upper inner bag walls 25 by means of the immersed therebetween cleaning nozzles 20a which in particular blow air on the upper inner bag walls 25.
- the treatment body 7 is again transferred from the treatment position 8 to the rest position 9 and the immersion unit 13 is pulled out of the head space 2 of the bag 3.
- the upper bag wall 25 is closed with the closing device 24 and here in particular welded.
- FIGS. 5 and 6 the clamping strips 26 and 27 are shown in the closed position 35 and in the suction position 36.
- the closed position 35 are the terminal strips 26 and 27 of the clamping device 23 with the respective clamping units 28 and 29 to each other to hold the bag 3.
- the clamping units 28 and 29 have an outer distance 30 along their connecting line.
- the upper bag wall 25 is pulled outwards by means of the suction unit or the sucker 31, so that the defined insertion opening 32 for the immersion unit 13 is made available.
- the cross section of the insertion opening 32 is adapted to the cross section of the immersion unit 13, that an insertion of the immersion unit 13 in the head space 2 of the bag 3 is possible.
- Fig. 7 is the acquisition of a new filled with bulk open bag 3 shown.
- the treatment body 7 with the suction device 4 and the cleaning device 5 is in the rest position 9.
- the clamping device 23 with the clamping strips 26 and 27 is still open and spaced from the upper bag wall.
- Fig. 9 the state is shown when the suckers 31 have sucked in the upper bag wall 25 and have been moved outward via the drive 34 in order to form the bag opening 6.
- the forcibly coupled with the suckers 31 clamping units 28 and 29 of the terminal strips 26 and 27 were simultaneously driven toward each other, so that the outer distance was reduced to the distance 33.
- the insertion opening 32 is adapted to the cross section of the immersion unit 13, so that after the transfer of the treatment body 7 from the rest position 9 into the treatment position 8, the immersion unit 13 with the tip 15 dips into the insertion opening 32.
- the suckers 31 are moved towards each other inwardly and the positively coupled clamping units 28 and 29 of the terminal strips 26 and 27 simultaneously move outwards away from each other.
- the clamping units 28 and 29 set tight against the immersion unit 13 and seal the upper bag opening 6 tight. Via the suction channel 16 of the immersion unit 13, the excess air is sucked out of the head space 2 of the bag 3 above the product level 41.
- the immersion unit 13 is moved back into the rest position 9 via the moving unit 19 and the bag 3 is closed or welded by means of the closing device 24, without a previous further transport taking place.
- the support means 38 supports the bag 3 when sucking the air from the head space 2 from below and raises the bag 3 in particular to support the suction and thus the suction vacuum can remain low.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Basic Packing Technique (AREA)
- Auxiliary Devices For And Details Of Packaging Control (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft eine Behandlungseinrichtung und ein Verfahren zum Behandeln eines insbesondere mit einem Schüttgut gefüllten offenen Sacks, wobei der Sack insbesondere mit einem pulverförmigen oder pudrigen staubenden Produkt gefüllt ist und an einer Verschließstation verschlossen wird.The present invention relates to a treatment device and a method for treating an open bag, in particular filled with a bulk material, wherein the bag is filled in particular with a pulverulent or powdery dusty product and is closed at a closing station.
Es sind im Stand der Technik Vorrichtungen und Verfahren zum Abfüllen von Schüttgütern in offene Säcke bekannt geworden, die nach dem Füllen beispielsweise durch ein Schweißverfahren verschweißt werden, um den Sack dicht zu verschließen.There have been known in the art devices and methods for filling bulk materials in open bags, which are welded after filling, for example, by a welding process to close the bag tight.
Offene Säcke werden oftmals aus Kunststofffolien hergestellt, die den Sackinhalt vor Feuchtigkeit schützen. Unter anderem deshalb werden in zunehmendem Maße Baustoffe wie Zement in offene Säcke aus Kunststofffolie abgefüllt. Diese bieten den erheblichen Vorteil, dass sie auf der Baustelle in der Regel nicht vor Regen geschützt werden müssen.Open sacks are often made of plastic film that protects the bag contents from moisture. One of the reasons why building materials such as cement are increasingly being filled into open sacks made of plastic film. These offer the considerable advantage that they do not usually have to be protected from rain on the construction site.
Zum Transport und zur Lagerung solcher mit beispielsweise Zement gefüllten Säcke ist es weiterhin von erheblichem Vorteil, wenn die Säcke eine Quaderform einnehmen, da sie dann einfach stapelbar und palettierfähig sind.For transporting and storing such bags filled with, for example, cement, it is furthermore of considerable advantage if the bags assume a cuboid shape, since they are then simply stackable and capable of being palletized.
Beim Füllen der offenen Säcke mit dem Schüttgut gelangt gleichzeitig auch Luft mit in den Sack. Um den Sack zu entlüften, werden beispielsweise Rütteleinrichtungen eingesetzt, die vor dem Verschließen des Sacks für eine Verdichtung und Entlüftung des Produkts sorgen. Trotzdem verbleibt noch ein Restluftanteil in den gefüllten Säcken, der anschließend z.B. in einer Pressstrecke teilweise herausgepresst wird, um für eine bessere Stapelfähigkeit der Säcke zu sorgen.When filling the open bags with the bulk material, air also enters the bag at the same time. To vent the bag, vibrating devices are used, for example Before closing the bag, ensure that the product is compressed and vented. Nevertheless, there is still a residual air content in the filled sacks, which is then partially pressed out, for example, in a press line to provide better stackability of the bags.
Damit die in dem Sack noch enthaltene Luft in der Pressstrecke austreten kann, werden Luftkanäle in der Sackwandung vorgesehen, durch die bei dem aufgebrachten Pressdruck ein Teil der noch enthaltenen Luft entweicht. Doch durch diese Kanäle kann nicht nur Luft aus dem Sackinneren nach außen entweichen, sondern in ungünstigen Fällen kann es auch dazu kommen, dass Feuchtigkeit von außen in den Sack eintritt, wodurch das Produkt verderben kann. Außerdem kann auch Produkt austreten.In order that the air still contained in the bag can escape in the press section, air channels are provided in the bag wall, through which part of the still contained air escapes at the applied pressing pressure. But through these channels not only air can escape from the interior of the bag to the outside, but in unfavorable cases it can also happen that moisture from the outside enters the bag, which can spoil the product. In addition, product can also escape.
Zum Entfernen der noch im Sack enthaltenen Luft ist mit der
Mit der
Mit der
Vor dem Hintergrund des Standes der Technik ist es die Aufgabe der vorliegenden Erfindung, eine Behandlungseinrichtung und eine Verschließstation, sowie ein Verfahren zum Behandeln eines gefüllten offenen Sacks zur Verfügung zu stellen, womit eine effektive Entlüftung und ein zuverlässiges Verschließen eines gefüllten offenen Sacks ermöglicht wird. Insbesondere soll der Aufwand dabei geringer sein als im bekannten Stand der Technik.In view of the background of the prior art, it is the object of the present invention to provide a treatment device and a closure station, as well as a method for treating a filled open bag, thus enabling effective venting and reliable closing of a filled open bag. In particular, the effort should be less than in the known state of the art.
Diese Aufgabe wird gelöst durch eine Behandlungseinrichtung mit den Merkmalen des Anspruchs 1. Eine erfindungsgemäße Packmaschine ist Gegenstand von Anspruch 12. Das erfindungsgemäße Verfahren ist Gegenstand des Anspruchs 13. Bevorzugt Weiterbildungen der Erfindung sind Gegenstand der jeweiligen Unteransprüche. Weiter vorteilhafte Merkmale und Ausgestaltungen der Erfindung sind in dem Ausführungsbeispiel dargestellt.This object is achieved by a treatment device with the features of
Die erfindungsgemäße Behandlungseinrichtung zum Behandeln von einem mit einem Schüttgut gefüllten offenen Sack umfasst wenigstens eine Absaugeinrichtung zum Absaugen von Luft aus dem Kopfraum des offenen Sacks und wenigstens eine Reinigungseinrichtung zum Reinigen der Sacköffnung des Sacks. Dabei sind die Absaugeinrichtung und die Reinigungseinrichtung an einer gemeinsamen Behandlungseinheit oder einem gemeinsamen Behandlungskörper angeordnet. Der Behandlungskörper ist zwischen wenigstens einer Behandlungsposition und wenigstens einer Ruheposition bewegbar. Die Absaugeinrichtung ist dafür vorgesehen, in der Behandlungsposition in den Kopfraum des Sacks einzutauchen, während die Reinigungseinrichtung wenigstens im Wesentlichen und insbesondere vollständig außerhalb des Sackinneren verbleibt. Eine Klemmeinrichtung ist zum Ergreifen und Klemmen der oberen Sackwandung eines offenen Sacks vorgesehen. Die Klemmeinrichtung umfasst wenigstens zwei Klemmleisten mit jeweils zwei Klemmeinheiten. Jede Klemmleiste umfasst wenigstens eine Saugereinheit, die zwischen den zwei Klemmeinheiten vorgesehen ist.The treatment device according to the invention for treating an open bag filled with a bulk material comprises at least one suction device for extracting air from the head space of the open bag and at least one cleaning device for cleaning the bag opening of the bag. In this case, the suction device and the cleaning device are arranged on a common treatment unit or a common treatment body. The treatment body is movable between at least one treatment position and at least one rest position. The suction device is intended to submerge in the treatment position in the headspace of the bag, while the cleaning device at least substantially and in particular remains completely outside the bag interior. A clamping device is provided for gripping and clamping the upper bag wall of an open bag. The clamping device comprises at least two terminal strips, each with two clamping units. Each clamping strip comprises at least one suction unit, which is provided between the two clamping units.
Die erfindungsgemäße Behandlungseinrichtung hat viele Vorteile. Ein erheblicher Vorteil ist, dass gleichzeitig eine Absaugung der in dem Sackvolumen enthaltenen Restluft und eine Reinigung der Sackwandung im Bereich der oberen Sacköffnung möglich ist. Dadurch wird eine schnellere und effektivere Behandlung der Säcke ermöglicht.The treatment device according to the invention has many advantages. A significant advantage is that at the same time a suction of the residual air contained in the bag volume and a cleaning of the bag wall in the upper bag opening is possible. This allows a faster and more effective treatment of the bags.
Durch die gemeinsame Behandlungseinheit bzw. die an einem gemeinsamen Behandlungskörper vorgesehene Absaugeinrichtung und die ebenfalls daran vorgesehene Reinigungseinrichtung kann mit nur einer gesteuerten Bewegung der obere Sackrand innen gereinigt werden, während gleichzeitig überschüssige Luft abgesaugt wird. Im angeführten Stand der Technik hingegen muss jede Einheit separat in die obere Sacköffnung eingeführt werden. Erfindungsgemäß taucht jedoch der gemeinsame Behandlungskörper mit nur einer Bewegung in die obere Öffnung des Sacks ein. Das stellt eine erhebliche Vereinfachung dar. Es wird beispielsweise nur ein Antrieb benötigt.By the common treatment unit or provided on a common treatment body suction device and also provided thereon cleaning device can with only one controlled movement of the upper bag edge inside be cleaned while sucking off excess air at the same time. In the cited prior art, however, each unit must be introduced separately in the upper bag opening. According to the invention, however, the common treatment body with only one movement immersed in the upper opening of the bag. This represents a considerable simplification. For example, only one drive is needed.
Weiterhin muss im Stand der Technik eine Kollision der unterschiedlichen Vorrichtungen ausgeschlossen werden, während die Reinigungseinrichtung von einer Seite des Sacks zur anderen bewegt wird. Erfindungsgemäß ist eine solche Koordinierung der Bewegungen zweier separater Vorrichtungen nicht erforderlich, wodurch der Aufwand nochmals sinkt.Furthermore, in the prior art, a collision of the various devices must be eliminated while moving the cleaner from one side of the bag to the other. According to the invention, such a coordination of the movements of two separate devices is not required, whereby the effort drops again.
Dadurch, dass die Absaugeinrichtung der Behandlungseinrichtung in den Kopfraum und dabei insbesondere nur in den Kopfraum des Sacks oberhalb des Produktspiegels bzw. Füllgutspiegels eintaucht, wird eine effektive und schnelle Absaugung ermöglicht, wobei das Absaugen von abgefülltem Produkt zuverlässig vermieden wird.Due to the fact that the suction device of the treatment device dips into the head space and in particular only into the headspace of the bag above the product level or filling material level, an effective and rapid suction is made possible, the suction of bottled product being reliably prevented.
Die erfindungsgemäße Behandlungseinrichtung erlaubt eine drastische Reduzierung der im gefüllten Sack verbleibenden Restluft, wobei die Restluft im Sack insbesondere derart reduziert wird, dass auf eine nachgeschaltete Pressstrecke verzichtet werden kann. Das bedeutet insbesondere, dass das aus dem Kopfraum des gefüllten Sacks abgeführte Luftvolumen vorzugsweise etwa dem typischerweise in einer Pressstrecke herausgepressten Restluftvolumen entspricht, sodass auf eine separate Verpressung der Säcke verzichtet werden kann. Dadurch ist es möglich, weniger Entlüftungskanäle von dem Sackinneren zum Sackäußeren vorzusehen oder sogar ganz darauf zu verzichten, wodurch die Gefahr des Eintritts von Feuchtigkeit weiter verringert wird. Außerdem steigt die Palettierfähigkeit der erfindungsgemäß behandelten Säcke.The treatment device according to the invention allows a drastic reduction of the residual air remaining in the filled bag, wherein the residual air in the bag is reduced in particular such that it is possible to dispense with a downstream pressing section. This means, in particular, that the air volume discharged from the head space of the filled bag preferably corresponds approximately to the residual air volume typically pressed out in a press section, so that a separate pressing of the bags can be dispensed with. This makes it possible to provide fewer ventilation channels from the interior of the bag to the exterior of the bag or even to do without it altogether, whereby the risk of the ingress of moisture is further reduced. In addition, the palletizing capability of the bags treated according to the invention increases.
Möglich und bevorzugt ist es auch, dass die Behandlungseinrichtung in einer Packmaschine eingesetzt wird, die aus einer kontinuierlichen Folienbahn offene Säcke herstellt und diese offenen Säcke anschließend mit dem Schüttgut befüllt, bevor sie mit der erfindungsgemäßen Behandlungseinrichtung behandelt werden, woraufhin die offenen Säcke beispielsweise durch ein Schweißverfahren verschlossen werden.It is also possible and preferred for the treatment device to be used in a packing machine which produces open sacks from a continuous film web and then fills these open sacks with the bulk material before they are treated with the treatment device according to the invention, whereupon the open sacks are replaced by a sack Welding process are sealed.
An dieser Stelle sei darauf hingewiesen, dass die Behandlungseinrichtung Teil einer Packmaschine sein kann, die vorkonfektionierte offene Säcke mit einem Schüttgut befüllt und anschließend verschließt.It should be noted at this point that the treatment device may be part of a packaging machine, which fills pre-assembled open bags with a bulk material and then closes.
In einer bevorzugten Weiterbildung der Erfindung umfasst der Behandlungskörper einen insbesondere langgestreckten und vorzugsweise etwa leistenförmigen Grundkörper. Vorzugsweise erstreckt sich der Grundkörper über einen erheblichen Anteil der Breite des Sacks. Die Länge des Grundkörpers kann etwa der Breite des Sacks entsprechen und erstreckt sich vorzugsweise über einen Anteil zwischen etwa 50 % und knapp 100 % der Breite des Sacks.In a preferred embodiment of the invention, the treatment body comprises a particular elongated and preferably approximately strip-shaped body. Preferably, the body extends over a substantial portion of the width of the bag. The length of the main body can correspond approximately to the width of the bag and preferably extends over a proportion of between about 50% and almost 100% of the width of the bag.
Vorzugsweise ist etwa mittig an dem insbesondere leistenförmigen Grundkörper eine Eintaucheinheit zum Eintauchen in den Kopfraum eines offenen Sacks vorgesehen. Die Eintaucheinheit kann beispielsweise als Eintauchschwert ausgebildet sein und im bestimmungsgemäß eingesetzten Zustand von dem leistenförmigen Grundkörper aus nach unten ragen. Die Länge des Eintaucheinheit ist insbesondere geringer die Länge des Grundkörpers. Insbesondere liegt die Länge der Eintaucheinheit etwa in einem Bereich zwischen 5 % und 75 % der Länge des Grundkörpers und vorzugsweise in einem Bereich zwischen 20 % und 50 % der Länge des Grundkörpers. Die Länge der Eintaucheinheit beträgt z. B. zwischen 5 % und 50 % der Breite der zu verschließenden Säcke.Preferably, an immersion unit for immersion in the headspace of an open bag is provided approximately in the middle of the particular strip-shaped base body. The immersion unit can be designed, for example, as a dip-in sword and protrude in the intended use of the strip-shaped base body down. The length of the immersion unit is in particular smaller the length of the main body. In particular, the length of the immersion unit is approximately in a range between 5% and 75% of the length of the base body and preferably in a range between 20% and 50% of the length of the base body. The length of the immersion unit is z. B. between 5% and 50% of the width of the bags to be closed.
Der Behandlungskörper kann insbesondere aus dem leistenförmigen Grundkörper und der Eintaucheinheit bestehen. Des Weiteren kann an dem Behandlungskörper ein Führungsteil oder dergleichen angeordnet sein, um den Behandlungskörper von der Ruheposition in die Behandlungsposition und zurück zu überführen.The treatment body may in particular consist of the strip-shaped main body and the immersion unit. Further, a guide member or the like may be disposed on the treatment body to transfer the treatment body from the rest position to the treatment position and back.
In einer vorteilhaften Weiterbildung ist die Absaugeinrichtung an der Eintaucheinheit ausgebildet und umfasst wenigstens einen Absaugkanal. Insbesondere mündet wenigstens ein Absaugkanal in einem Bereich der (unteren) Spitze der Eintaucheinheit, um so in der Behandlungsposition an der untersten Position angeordnet zu sein.In an advantageous development, the suction device is formed on the immersion unit and comprises at least one suction channel. In particular, at least one suction channel opens in a region of the (lower) tip of the immersion unit so as to be located in the treatment position at the lowermost position.
Vorzugsweise weist die Eintaucheinheit einen langgestreckten und zu den Enden hin spitz zulaufenden Querschnitt auf, sodass ein faltenfreies Anlegen des Sacks um die Eintaucheinheit herum möglich ist. Zum Absaugen der Luft aus dem Kopfraum des Sacks wird die Eintaucheinheit in den Kopfraum eingeführt, wobei sich die obere Sackwandung an die Außenseite der Eintaucheinheit anlegt und dort über geeignete Mittel festgehalten wird. Dadurch wird nur die Eintaucheinheit in den Sack eingeführt, an dessen unterem Ende der Absaugkanal mündet.Preferably, the dipping unit has an elongated cross-section which tapers towards the ends, so that a fold-free application of the bag around the dipping unit is possible. For sucking the air from the headspace of the bag, the immersion unit is introduced into the headspace, wherein the upper bag wall applies to the outside of the immersion unit and is held there by suitable means. As a result, only the immersion unit is introduced into the bag, at the lower end of the suction channel opens.
In allen Ausgestaltungen umfasst die Reinigungseinrichtung vorzugsweise eine Mehrzahl an Reinigungsdüsen. Insbesondere sind die Reinigungsdüsen an dem langgestreckten und insbesondere leistenförmigen Grundkörper vorgesehen und dienen zum Reinigen der oberen inneren Sackwandung, um insbesondere ein zuverlässiges Verschließen der Sacköffnung zu ermöglichen. Einige der Reinigungsdüsen sind insbesondere als insbesondere seitliche Reinigungsdüsen und einige als untere Reinigungsdüsen vorgesehen, um Reinigungsluft zur Seite bzw. nach unten zu blasen. Vorzugsweise umgeben die Reinigungsdüsen in radialer Richtung den Absaugkanal oder die Absaugkanäle.In all embodiments, the cleaning device preferably comprises a plurality of cleaning nozzles. In particular, the cleaning nozzles are provided on the elongated and in particular strip-shaped base body and serve to clean the upper inner bag wall, in particular to allow a reliable closing of the bag opening. Some of the cleaning nozzles are in particular provided as in particular lateral cleaning nozzles and some as lower cleaning nozzles to the cleaning air to the side or down to blow. The cleaning nozzles preferably surround the suction channel or the suction channels in the radial direction.
Zur Reinigung werden die Reinigungsdüsen mit Luft beaufschlagt und blasen Luft auf den zu reinigenden Teil des Sacks, nämlich insbesondere die obere innere Sackwandung im Bereich der Sacköffnung.For cleaning, the cleaning nozzles are exposed to air and blow air onto the part of the bag to be cleaned, namely in particular the upper inner bag wall in the region of the bag opening.
Vorteilhafterweise sind die Reinigungsdüsen zu den Seiten und nach unten ausgerichtet. Dazu sind die Reinigungsdüsen vorzugsweise an dem langgestreckten und insbesondere leistenförmigen Grundkörper nach unten ausgerichtet, während sie an der Eintaucheinheit nur am oberen Ende in der Nähe des leistenförmigen Grundkörpers vorgesehen und dort zur Seite ausgerichtet sind.Advantageously, the cleaning nozzles are aligned to the sides and downwards. For this purpose, the cleaning nozzles are preferably aligned on the elongated and in particular strip-shaped base body downwards, while they are provided on the immersion unit only at the upper end in the vicinity of the strip-shaped base body and aligned there to the side.
In der Behandlungsposition sind die seitlich ausgerichteten Reinigungsdüsen nicht bis in den Kopfraum des Sacks eingetaucht, sondern können Luft auf die obere innere Sackwandung der oberen Sacköffnung blasen, um diese von Produktpartikeln zu reinigen und um so ein zuverlässiges Verschließen der oberen Sacköffnung im Anschluss an das Absaugen der Restluft zu erlauben.In the treatment position, the laterally directed cleaning nozzles are not immersed in the headspace of the bag, but can blow air on the upper inner bag wall of the upper bag opening to clean them of product particles and so a reliable closing of the upper bag opening following the suction to allow the residual air.
Die Behandlungseinrichtung umfasst wenigstens eine Klemmeinrichtung zum Ergreifen und Klemmen der oberen Sackwandung des offenen Sacks. Weiterhin kann eine Verschließeinrichtung zum Verschließen der Sacköffnung des Sacks vorgesehen sein, welche nach dem Absaugen von Luft aus dem offenen Sack mittels einer Absaugeinrichtung den Sack direkt verschließt. Das bietet erhebliche Vorteile, da der Sack vor dem Verschließen weder weiter transportiert noch erneut gegriffen werden muss, wodurch sichergestellt wird, dass keine Luft mehr in den Sack eintritt und wodurch die Lage und Form des Sacks erhalten bleiben. Eine Faltenbildung in der Sackwandung bei der Übergabe wird vermieden.The treatment device comprises at least one clamping device for gripping and clamping the upper bag wall of the open bag. Furthermore, a closing device for closing the bag opening of the bag can be provided, which closes the bag directly after the extraction of air from the open bag by means of a suction device. This offers considerable advantages, since the bag does not have to be transported or re-gripped before closing, which ensures that no more air enters the bag and thus the position and shape of the bag are preserved. Wrinkling in the bag wall during transfer is avoided.
Mit einer solchen Behandlungseinrichtung wird ein zuverlässiges Absaugen der Restluft aus dem Kopfraum des mit einem Schüttgut gefüllten Sacks ermöglicht, während gleichzeitig die obere Sackwandung des Sacks von Produktpartikeln gereinigt wird, um ein zuverlässiges Verschließen des Sacks zu ermöglichen.With such a treatment device, a reliable suction of the residual air from the headspace of the bag filled with a bulk material is made possible, while at the same time the upper bag wall of the bag is cleaned of product particles in order to allow a reliable closing of the bag.
Die Klemmeinrichtung umfasst wenigstens zwei Klemmleisten mit jeweils zwei Klemmeinheiten. Dabei ist die Breite der Klemmeinheiten bzw. ein Abstand der Klemmeinheiten jeder Klemmleisten vorzugsweise veränderbar. Insbesondere sind die Klemmeinheiten einer Klemmleiste aufeinander zu und voneinander weg bewegbar.The clamping device comprises at least two terminal strips, each with two clamping units. In this case, the width of the clamping units or a spacing of the clamping units of each clamping strip is preferably variable. In particular, the clamping units of a terminal block are movable towards and away from each other.
Vorteilhafterweise ist die Saugereinheit, in einem zentralen Bereich der Klemmeinrichtung bzw. der Klemmleiste etwa in der Mitte zwischen den zwei Klemmeinheiten vorgesehen ist. Die Saugereinheit ermöglicht das Ansaugen der Sackwandung, während die Sackwandung gleichzeitig von dem Klemmeinheiten geklemmt bleibt.Advantageously, the suction unit is provided in a central region of the clamping device or the clamping strip approximately in the middle between the two clamping units. The suction unit allows the suction of the bag wall, while the bag wall remains clamped simultaneously by the clamping units.
Vorzugsweise sind insgesamt wenigstens vier Sauger vorgesehen, von denen jeweils zwei gegenüberliegend angeordnet sind. Über die Sauger wird ein definiertes Ansaugen der Sackwandung in einem zentralen Bereich ermöglicht, während gleichzeitig die Klemmeinheiten den Sack halten.Preferably, a total of at least four suckers are provided, of which two are arranged opposite each other. The suction cups allow a defined suction of the bag wall in a central area, while at the same time the clamping units hold the bag.
Vorzugsweise sind die zwei Klemmeinheiten einer bzw. jeder Klemmleiste und die Saugereinheit der Klemmleiste miteinander bewegungsgekoppelt. Die Kopplung der Bewegung kann z.B. über einen Schwenkhebel erfolgen, so dass eine Umlenkung der Bewegung erfolgt.The two clamping units of one or each clamping strip and the suction unit of the clamping strip are preferably coupled to one another in a movement-coupled manner. The coupling of the movement can e.g. take place via a pivot lever, so that a deflection of the movement takes place.
Wenn z.B. die Saugereinheiten auf den Sack zu bewegt werden, bewegen sich die zwei Klemmeinheiten einer Klemmleiste entlang ihrer Verbindungslinie voneinander weg und wenn die Saugereinheiten von dem Sack weg bewegt werden, bewegen sich die zwei Klemmeinheiten einer Klemmleiste entlang ihrer Verbindungslinie aufeinander zu. Dadurch wird Sackmaterial freigegeben, um eine Öffnung im Sack freizugeben, durch die anschließend die Eintaucheinheit von oben in den Sack eintauchen kann.For example, when the vacuum units are moved toward the bag, the two clamping units of a clamping bar move away from each other along their connecting line and when the vacuum units moved away from the bag, move the two clamping units of a terminal strip along its connecting line to each other. As a result, bag material is released in order to release an opening in the bag, through which the immersion unit can subsequently dip from above into the bag.
Alternativ dazu können die Klemmeinheiten gleichzeitig unabhängig nach innen in Richtung auf die Saugereinheit zu bewegt werden, um ein kontrolliertes Öffnen des Sacks in einem zentralen Bereich zu ermöglichen. In die definierte Öffnung kann die gemeinsame Behandlungseinrichtung bzw. die Absaugeinrichtung der Behandlungseinrichtung eingeführt werden. Die definierte Öffnung und die Absaugeinrichtung sind vorzugsweise größenmäßig aufeinander angepasst.Alternatively, the clamping units may be simultaneously moved independently inwardly toward the nipple unit to allow controlled opening of the sack in a central area. In the defined opening, the common treatment device or the suction device of the treatment device can be introduced. The defined opening and the suction device are preferably adapted to each other in terms of size.
Nach dem Eintauchen der Eintaucheinheit werden bei beiden Klemmleisten die Saugereinheiten wieder auf den Sack zu bewegt, womit gleichzeitig die Klemmeinheiten jeder Klemmleiste wieder auseinander fahren. Damit legt sich die Sackwandung an die Eintaucheinheit an und verschließt die obere Sacköffnung dicht. Dadurch wird sichergestellt, dass die Absaugeinrichtung nur Luft aus dem Kopfraum des Sacks absaugt und nicht etwa Luft von außen, die über Undichtigkeiten in das Sackinnere gerät.After immersing the immersion unit, the suction units are moved back to the bag in both terminal strips, which at the same time drive apart the clamping units of each terminal strip again. Thus, the bag wall is applied to the immersion unit and closes the upper bag opening tight. This ensures that the suction only sucks air from the headspace of the bag and not about air from the outside, which gets into the bag inside via leaks.
In allen Ausgestaltungen ist vorzugsweise eine Stützeinrichtung vorgesehen, welche den Sack wenigstens in der Behandlungsposition stützt. Die Stützeinrichtung kann den Sack von unten und/oder von der Seite stützen.In all embodiments, a support device is preferably provided, which supports the bag at least in the treatment position. The support means may support the bag from below and / or from the side.
Insbesondere hebt die Stützeinrichtung den Sack bei dem Absaugen der sich oberhalb des Produktspiegels befindenden Kopfluft an, um den Absaugvorgang zu erleichtern und um den zum Absaugen nötigen Unterdruck gering zu halten. Dadurch wird auch das Ansaugen von Produktpartikeln wirksam vermieden.In particular, the support device raises the bag during the aspiration of the head air located above the product level in order to facilitate the suction process and to keep the vacuum necessary for suction low. As a result, the suction of product particles is effectively avoided.
Die Stützeinrichtung kann beispielsweise als insbesondere höhenverstellbarer Rütteltisch oder dergleichen ausgebildet sein und den Sack nicht nur stützen, sondern die Entlüftung des Sacks auch durch eine Vibrationsbewegung fördern. Eine durch ein Transportband gebildete Stützeinrichtung ist ebenfalls bevorzugt, die nach dem Absaugen und einem gegebenenfalls erfolgtem Verschließen des Sacks den Sack abtransportiert.The support means may for example be designed as a particular height-adjustable vibrating table or the like and not only support the bag, but also promote the venting of the bag by a vibration movement. A supporting device formed by a conveyor belt is also preferred, which removes the bag after the suction and optionally closed the bag.
In allen Ausgestaltungen übernimmt die Behandlungseinrichtung den gefüllten Sack von einer Übergabeeinrichtung, die beispielsweise über Spreiz- und Ausrichtbacken verfügt, welche den Sack ergreifen und die obere Sackwandung horizontal ausrichten, um eine korrekte Weiterverarbeitung zu gewährleisten.In all embodiments, the treatment device takes over the filled bag from a transfer device, which has, for example, spreading and alignment jaws which grasp the bag and align the upper bag wall horizontally in order to ensure correct further processing.
Eine erfindungsgemäße Verschließstation weist insbesondere eine zuvor beschriebene Behandlungseinrichtung auf.A closing station according to the invention has in particular a treatment device described above.
Eine erfindungsgemäße Verschließstation zum Verschließen eines insbesondere mit einem Schüttgut gefüllten offenen Sacks kann eine Klemmeinrichtung zum Ergreifen und Klemmen der oberen Sackwandung eines offenen Sacks, sowie eine Verschließeinrichtung zum Verschließen der Sacköffnung des Sacks aufweisen. Es kann wenigstens eine Absaugeinrichtung zum Absaugen von Luft aus dem offenen Sack und wenigstens eine Reinigungseinrichtung zum Reinigen der oberen Sackwandung im Bereich der Sacköffnung des Sacks vorgesehen sein. Die Absaugeinrichtung und die Reinigungseinrichtung sind dabei an einer gemeinsamen Behandlungseinrichtung vorgesehen, welche zwischen einer Behandlungsposition und einer Ruheposition bewegbar ist, wobei die Absaugeinrichtung in der Behandlungsposition in den Kopfraum des Sacks eintaucht, um Luft aus dem Kopfraum abzusaugen, während die Reinigungseinrichtung außerhalb verbleibt.A closing station according to the invention for closing an open bag, in particular filled with a bulk material, can have a clamping device for gripping and clamping the upper bag wall of an open bag, as well as a closing device for closing the bag opening of the bag. At least one suction device for sucking air out of the open bag and at least one cleaning device for cleaning the upper bag wall in the region of the bag opening of the bag can be provided. The suction device and the cleaning device are provided on a common treatment device which is movable between a treatment position and a rest position, wherein the suction device is immersed in the treatment position in the head space of the bag to suck air from the headspace while the cleaning device remains outside.
Die erfindungsgemäße Packmaschine umfasst wenigstens ein Füllorgan zum Füllen von Schüttgütern in offene Säcke, wobei wenigstens eine Behandlungseinrichtung zum Behandeln eines mit einem Schüttgut gefüllten offenen Sacks vorgesehen ist, welche wenigstens eine Absaugeinrichtung zum Absaugen von Luft aus dem Kopfraum des offenen Sacks und wenigstens eine Reinigungseinrichtung zum Reinigen der Sacköffnung des gefüllten Sacks umfasst. Es ist eine Klemmeinrichtung zum Ergreifen und Klemmen der oberen Sackwandung eines offenen Sacks vorgesehen, wobei die Klemmeinrichtung wenigstens zwei Klemmleisten mit jeweils zwei Klemmeinheiten umfasst. Jede Klemmleiste umfasst wenigstens eine Saugereinheit, die in einem zentralen Bereich der Klemmeinrichtung zwischen den zwei Klemmeinheiten vorgesehen ist. Dabei sind die Absaugeinrichtung und die Reinigungseinrichtung an einer gemeinsamen Behandlungseinheit und insbesondere einem gemeinsamen Behandlungskörper angeordnet, wobei die Behandlungseinheit bzw. der Behandlungskörper zwischen einer Behandlungsposition und wenigstens einer Ruheposition bewegbar ist. Die Absaugeinrichtung ist dafür vorgesehen in der Behandlungsposition in das Sackinnere des gefüllten Sacks einzutauchen, während die Reinigungseinrichtung wenigstens im Wesentlichen außerhalb verbleibt.The packing machine according to the invention comprises at least one filling element for filling bulk goods in open sacks, wherein at least one treatment device is provided for treating an open bag filled with a bulk material, which comprises at least one suction device for sucking air out of the headspace of the open bag and at least one cleaning device for cleaning the bag opening of the filled bag. There is provided a clamping device for gripping and clamping the upper bag wall of an open bag, wherein the clamping device comprises at least two terminal strips each having two clamping units. Each clamping strip comprises at least one suction unit, which is provided in a central region of the clamping device between the two clamping units. In this case, the suction device and the cleaning device are arranged on a common treatment unit and in particular a common treatment body, wherein the treatment unit or the treatment body between a treatment position and at least one rest position is movable. The suction device is intended to immerse in the treatment position in the bag interior of the filled bag, while the cleaning device remains at least substantially outside.
Das erfindungsgemäße Verfahren dient zum Behandeln eines mit einem Schüttgut gefüllten offenen Sacks. Bei dem Verfahren wird die obere Sackwandung eines offenen Sacks ergriffen und insbesondere mit einer Klemmeinrichtung geklemmt und es wird eine Absaugeinrichtung einer Behandlungseinrichtung in den Kopfraum des Sack eingeführt und es wird Luft aus dem Kopfraum des Sacks abgesaugt während eine Reinigungseinrichtung der Behandlungseinrichtung mittels Reinigungsdüsen Luft auf die obere Sackwandung bläst, um die obere Sackwandung vor dem Verschließen zu reinigen- Die obere Sackwandung wird durch wenigstens zwei Klemmleisten mit jeweils zwei Klemmeinheiten ergriffen, die aufeinander zu bewegt werden, während zwischen den Klemmeinheiten sauger ein Einführöffnung in der oberen Sackwandung öffnen, um die Absaugeinrichtung der Behandlungseinrichtung einzuführen und die Reinigungseinrichtung an die obere innere Sackwandung heranzuführen.The inventive method is used to treat a filled with a bulk open bag. In the method, the upper bag wall of an open bag is gripped and in particular clamped with a clamping device and a suction device of a treatment device is introduced into the headspace of the bag and air is sucked out of the headspace of the bag while a cleaning device of the treatment device by means of cleaning air on the upper bag wall blows to clean the upper bag wall before closing- The upper bag wall is gripped by at least two terminal strips, each with two clamping units, which are moved towards each other, while between the terminal units sucker open an insertion in the upper bag wall to the suction device introduce the treatment device and bring the cleaning device to the upper inner bag wall.
Durch das Absaugen der Luft nur aus dem Kopfraum des Sacks wird eine effektive Absaugung ermöglicht, bei der kein oder nahezu kein Material abgesaugt wird. Das erlaubt eine sehr effektive Abfüllung der Säcke, während gleichzeitig durch das Absaugen der Restluft aus dem Kopfraum des Sacks eine quaderförmige Gestalt der gefüllten Säcke gewährleistet werden kann, ohne eine etwaige Nachentlüftung bereitstellen zu müssen.By sucking the air only from the headspace of the bag effective suction is possible in which no or almost no material is sucked. This allows a very effective filling of the bags, while at the same time can be ensured by sucking the residual air from the headspace of the bag, a cuboidal shape of the filled bags without having to provide any post-venting.
Bei dem Verfahren wird die obere Sackwandung durch zwei Klemmeinheiten ergriffen, die aufeinander zu bewegt werden, während vorzugsweise mittig zwischen den Klemmeinheiten Sauger eine Einführöffnung in der oberen Sackwandung öffnen, um die Absaugeinrichtung der Behandlungseinrichtung einzuführen und die Sackreinigungseinrichtung an die obere Sackwandung heranzuführen, sodass eine effektive Absaugung und eine effektive Reinigung der oberen Sackwandung ermöglicht wird.In the method, the upper bag wall is gripped by two clamping units which are moved towards each other, while preferably centrally between the clamping units suction open an insertion in the upper bag wall to introduce the suction device of the treatment device and bring the bag cleaning device to the upper bag wall, so that a effective suction and effective cleaning of the top bag wall is made possible.
Weitere Vorteile und Anwendungsmöglichkeiten der vorliegenden Erfindung ergeben sich aus der Beschreibung eines Ausführungsbeispiels, das nun mit Bezug auf die beiliegenden Figuren erläutert wird.Further advantages and possible applications of the present invention will become apparent from the description of an embodiment, which will now be explained with reference to the accompanying figures.
In den Figuren zeigen:
- Fig. 1
- eine Seitenansicht einer erfindungsgemäßen Behandlungseinrichtung in einer Ruheposition;
- Fig. 2
- eine Vorderansicht der Behandlungseinrichtung nach
Fig. 1 ; - Fig. 3
- eine Seitenansicht der Behandlungseinrichtung nach
Fig. 1 ; - Fig. 4
- eine Seitenansicht der Behandlungseinrichtung nach
Fig. 1 mit der Behandlungseinrichtung in einer Behandlungsposition; - Fig. 5
- eine Aufsicht auf die Klemmeinrichtung der Behandlungs- einrichtung nach
Fig. 1 in einer Schließposition; - Fig. 6
- eine Aufsicht auf die Klemmeinrichtung der Verschließ- station nach
Fig. 1 in einer Entlüftungsposition; - Fig. 7
- eine schematische perspektivische Ansicht der Behand- lungseinrichtung bei der Übernahme eines gefüllten Sacks;
- Fig. 8
- eine schematische perspektivische Ansicht der Behandlungseinrichtung mit einem übernommenen Sack;
- Fig. 9
- eine schematische perspektivische Ansicht der Behandlungseinrichtung mit der Absaugeinrichtung in einer Ruheposition; und
- Fig. 10
- eine schematische perspektivische Ansicht der Behandlungseinrichtung mit der Absaugeinrichtung in einer Behandlungsposition.
- Fig. 1
- a side view of a treatment device according to the invention in a rest position;
- Fig. 2
- a front view of the treatment device according to
Fig. 1 ; - Fig. 3
- a side view of the treatment device according to
Fig. 1 ; - Fig. 4
- a side view of the treatment device according to
Fig. 1 with the treatment device in a treatment position; - Fig. 5
- a view of the clamping device of the treatment device according to
Fig. 1 in a closed position; - Fig. 6
- a view of the clamping device of the closing station according to
Fig. 1 in a venting position; - Fig. 7
- a schematic perspective view of the treatment device in the acquisition of a filled bag;
- Fig. 8
- a schematic perspective view of the treatment device with an inherited bag;
- Fig. 9
- a schematic perspective view of the treatment device with the suction device in a rest position; and
- Fig. 10
- a schematic perspective view of the treatment device with the suction device in a treatment position.
Mit Bezug auf die
In
An der Verschließstation 1 wird der Sack 3 beispielsweise von einer nicht dargestellten Füllstation übernommen, um aus dem Kopfraum 2 des Sackinneren 11 oberhalb des Produktspiegels 41 überschüssige Luft abzusaugen, die obere Sackwandung 25 zu reinigen und den Sack 3 zu verschließen, was insbesondere durch ein Verschweißen mit der Verschließeinrichtung 24 erfolgt. Nach dem Absaugen der Luft aus dem Kopfraum 2 ist vor dem Verschließen des Sacks 3 eine Übergabe nicht erforderlich, da eine Verschließeinrichtung 24 an der Verschließstation 1 vorgesehen ist.At the
Die Behandlungseinrichtung 10 umfasst den in
Der Behandlungseinrichtung 10 umfasst eine Absaugeinrichtung 4 und eine Reinigungseinrichtung 5 an einem gemeinsamen Behandlungskörper 7 bzw. an einer gemeinsamen Behandlungseinheit. Der gemeinsame Behandlungskörper 7 kann einstückig ausgebildet sein oder aber aus zwei oder mehr miteinander verbundenen Teilen bestehen, die insgesamt eine gemeinsam bewegbare Einheit bilden.The
An dem Grundkörper 12 ist die Reinigungseinrichtung 5 vorgesehen, die mit einer Vielzahl von Reinigungsdüsen 20 versehen ist. Die Reinigungsdüsen 20 sind auf den Seiten 21 des leistenförmigen Grundkörpers 12 als seitliche Reinigungsdüsen 20a und auf der Unterseite 22 des leistenförmigen Grundkörpers 12 als untere Reinigungsdüsen 20b vorgesehen.On the
Die seitlichen Reinigungsdüsen 20a sind hier an einem Reinigungsansatz 39 ausgebildet, der Teil des Grundkörpers 12 ist und von dem aus sich die Eintaucheinheit 13 aus weg erstreckt.The
Die auf der Seite 21 vorgesehenen Reinigungsdüsen 20a dienen zur Reinigung der oberen inneren Sackwandung 25 von der Seite aus, während die Reinigungsdüsen 20b auf der Unterseite 22 die obere Sackwandung 25 von oben aus mit Luft anblasen, um diese zu reinigen.The
In der Behandlungsposition 8 taucht die Eintaucheinheit 13 in die Sacköffnung 6 ein. Der Reinigungsansatz 39 taucht dabei zwar nicht in das Sackinnere 11 ein, tritt aber zwischen die oberen Enden der oberen Sackwandung 25 ein, sodass die seitlichen Reinigungsdüsen 20a die oberen inneren Sackwandungen 25 von Produktstaub und dergleichen reinigen, wenn sie aktiviert werden.In the
Insbesondere werden durch die auf der Unterseite 22 vorgesehenen Reinigungsdüsen 20b auch die Seitenfaltenbereiche der Säcke 3 gereinigt.In particular, the gusset areas of the
Durch die Reinigung der oberen Sackwandung 25 wird die Verschlusszone 40 oder Schweißzone der Säcke 3 von Produkt befreit, sodass eine zuverlässige und dauerhafte Verschweißung der oberen Sackwandung 25 möglich ist. Eine Beeinträchtigung der Verschlussnaht durch Produktpartikel wird zuverlässig vermieden.By cleaning the
Weiterhin dient die Behandlungseinrichtung 10 bzw. der Behandlungskörper 7 auch der Absaugung von Luft aus dem Kopfraum 2 eines Sacks 3. Dazu taucht der Behandlungskörper 7 mit der Eintaucheinheit 13 in den Kopfraum 2 eines mit einem Schüttgut gefüllten Sacks 3 ein und saugt über den Absaugkanal 16 an der unteren Spitze 15 die im Kopfraum 2 vorhandene Luft ab. Da der Absaugkanal 16 nicht in den Produktspiegel eintaucht, sondern nur in den Kopfraum 2 des Sacks 3, wird zuverlässig das Absaugen von Produkt aus dem Kopfraum 2 vermieden. Eine Stützeinheit 38 unterstützt den Sack 3 und hebt den Sack 3 während des Absaugens an, sodass das zum Absaugen benötigte Vakuum reduziert werden kann, da nicht das gesamte Sackgewicht von der Absaugeinrichtung 4 gehalten werden muss.Furthermore, the
Damit sich die obere Sackwandung 25 beim Absaugen der Luft aus dem Kopfraum 2 glatt an die Eintaucheinheit 13 anlegt, ist die Eintaucheinheit 13 im Querschnitt so gestaltet, dass die Enden 17 und 18 spitz zulaufen.Thus, the
In
Nach dem Absaugen der Luft aus den Kopfraum 2 und dem Reinigen der oberen Sackwandung 25 mit der Reinigungseinrichtung 5 wird der Behandlungskörper 7 wieder von der Behandlungsposition 8 in die Ruheposition 9 überführt und die Eintaucheinheit 13 wird dabei aus dem Kopfraum 2 des Sacks 3 herausgezogen. Im Anschluss daran wird mit der Verschließeinrichtung 24 die obere Sackwandung 25 verschlossen und hier insbesondere verschweißt.After sucking off the air from the
In den
Um den Sack 3 zu öffnen, wird die obere Sackwandung 25 mittels der Saugereinheit bzw. der Sauger 31 nach außen gezogen, damit die definierte Einführöffnung 32 für die Eintaucheinheit 13 zur Verfügung gestellt wird. Dabei ist der Querschnitt der Einführöffnung 32 an den Querschnitt der Eintaucheinheit 13 so angepasst, dass ein Einführen der Eintaucheinheit 13 in den Kopfraum 2 des Sacks 3 möglich ist.In order to open the
In der Absaugposition 36 sind die Klemmeinheiten 28 und 29 der Klemmleisten 26 und 27 durch den Antrieb 34 entlang ihrer Verbindungslinie aufeinander zu gefahren worden, sodass ein etwas reduzierter Abstand 33 vorliegt. Mit Bezug auf die
In
In
Die Einführöffnung 32 ist angepasst an den Querschnitt der Eintaucheinheit 13, sodass nach der Überführung des Behandlungskörpers 7 von der Ruheposition 9 in die Behandlungsposition 8 die Eintaucheinheit 13 mit der Spitze 15 in die Einführöffnung 32 eintaucht.The
Im Anschluss daran werden mit dem Antrieb 34 die Sauger 31 aufeinander zu nach innen gefahren und die zwangsgekoppelten Klemmeinheiten 28 und 29 der Klemmleisten 26 und 27 fahren gleichzeitig nach außen voneinander weg. Die Klemmeinheiten 28 und 29 legen sich an die Eintaucheinheit 13 dicht an und verschließen die obere Sacköffnung 6 dicht. Über den Absaugkanal 16 der Eintaucheinheit 13 wird die überschüssige Luft aus dem Kopfraum 2 des Sacks 3 oberhalb des Produktspiegels 41 abgesaugt.Following this, with the
Nach dem Absaugen der Luft aus dem Kopfraum wird die Eintaucheinheit 13 über die Verfahreinheit 19 wieder in die Ruheposition 9 verfahren und der Sack 3 mittels der Verschließeinrichtung 24 verschlossen oder verschweißt, ohne dass ein vorhergehender Weitertransport erfolgt.After the air has been sucked out of the head space, the
In allen Ausgestaltungen stützt die Stützeinrichtung 38 den Sack 3 beim Absaugen der Luft aus dem Kopfraum 2 von unten und hebt den Sack 3 insbesondere an, um das Absaugen zu unterstützen und damit das Absaugvakuum gering bleiben kann.In all embodiments, the support means 38 supports the
- 11
- Verschließstationclosing station
- 22
- Kopfraumheadspace
- 33
- Sackbag
- 44
- Absaugeinrichtungsuction
- 55
- Reinigungseinrichtungcleaning device
- 66
- Sacköffnungblind opening
- 77
- Behandlungskörpertreatment body
- 88th
- Behandlungspositiontreatment position
- 99
- Ruhepositionrest position
- 1010
- Behandlungseinrichtungtreatment facility
- 1111
- Sackinnerebag inside
- 1212
- Grundkörperbody
- 1313
- EintaucheinheitImmersion unit
- 1414
- Mittiger BereichMiddle area
- 1515
- Spitzetop
- 1616
- Absaugkanalsuction
- 1717
- EndeThe End
- 1818
- EndeThe End
- 1919
- Verfahreinheittraversing
- 2020
- Reinigungsdüsecleaning nozzle
- 20a20a
- seitliche Reinigungsdüselateral cleaning nozzle
- 20b20b
- untere Reinigungsdüselower cleaning nozzle
- 2121
- Seitepage
- 2222
- Unterseitebottom
- 2323
- Klemmeinrichtungclamper
- 2424
- Verschließeinrichtungclosing
- 2525
- Obere SackwandungUpper bag wall
- 2626
- Klemmleisteterminal block
- 2727
- Klemmleisteterminal block
- 2828
- Klemmeinheitterminal unit
- 2929
- Klemmeinheitterminal unit
- 3030
- Breitewidth
- 3131
- Saugereinheitsuction unit
- 3232
- Einführöffnunginsertion
- 3333
- Breitewidth
- 3434
- Antriebdrive
- 3535
- Schließpositionclosed position
- 3636
- Absaugpositionsuction position
- 3737
- zentraler Bereichcentral area
- 3838
- Stützeinrichtungsupport means
- 3939
- Reinigungsansatzcleaning approach
- 4040
- Verschlusszoneclosing zone
- 4141
- Produktspiegelproduct mirror
Claims (14)
- Treatment device (10) for treating an open bag (3) filled with a bulk material, comprising at least one suction device (4) for sucking air out of the head room (2) of the open bag (3) and at least one cleaning device (5) for cleaning the bag opening (6) of the bag (3), characterized in that a clamping device (23) is provided for grasping and clamping the top bag wall (25) of an open bag (3), comprising at least two clamping bars (26, 27) having two clamping units (28, 29) each, each clamping bar (26, 27) comprising at least one suction unit (31) provided between the two clamping units (28, 29), and that the suction device (4) and the cleaning device (5) are disposed at a shared treatment body (7) which can be moved between a treatment position (8) and a rest position (9), the suction device (4) being provided to be immersed into the bag interior (11) of the bag (3) in the treatment position (8) while the cleaning device (5) remains at least substantially outside.
- The treatment device (10) according to claim 1, wherein the treatment body (7) comprises an elongated base body (12) approximately in the center of which an immersing unit (13) for immersing into the head room (2) of an open bag (3) is provided, the suction device (4) preferably being configured at the immersing unit (13) and comprising at least one suction channel (16) opening in the region of the tip (15) of the immersing unit (13).
- The treatment device (10) according to claim 2, the immersing unit (13) having an elongated cross-section tapering towards the ends (17, 18) to permit wrinkle-free placement of the bag (3).
- The treatment device (10) according to at least one of the preceding claims 2 to 3, the cleaning device (5) comprising a plurality of cleaning nozzles (20) provided in particular at the bar-shaped base body (12) with the cleaning nozzles (20) preferably oriented to the sides (21) and downwardly and/or in particular lateral cleaning nozzles (20a) and lower cleaning nozzles (20b) are provided.
- The treatment device (10) according to at least one of the preceding claims, wherein a closing device (24) is provided for closing the bag opening (6) of the bag (3).
- The treatment device (10) according to at least one of the preceding claims, wherein a distance (30) of the clamping units (28, 29) is changeable.
- The treatment device (10) according to at least one of the preceding claims, wherein the suction unit (31) is provided in a central region (37) of the clamping device (23) between the two clamping units (28, 29).
- The treatment device (10) according to at least one of the preceding claims, wherein the motions of the two clamping units (28, 29) of a clamping bar (26, 27) and the suction unit (31) are coupled wherein the two clamping units (28, 29) of a clamping bar (26, 27) preferably move towards and away from one another with movement of the suction units (31) of the two clamping bars (26, 27).
- The treatment device (10) according to at least one of the preceding claims, wherein a supporting device (38) is provided supporting the bag (3) at least in the treatment position (8).
- The treatment device (10) according to the preceding claim, wherein the supporting device (38) lifts the bag (3) up during suction.
- Closing station (1) for closing an open bag (3) that is in particular filled with a bulk material, comprising at least one treatment device (10) according to at least one of the preceding claims.
- Packaging machine with at least one filling element for filling bulk materials into open bags wherein at least one treatment device (10) for treating an open bag (3) filled with a bulk material is provided, comprising at least one suction device (4) for sucking air out of the head room (2) of the open bag (3) and at least one cleaning device (5) for cleaning the bag opening (6) of the filled bag (3), characterized in that a clamping device (23) is provided for grasping and clamping the top bag wall (25) of an open bag (3) comprising at least two clamping bars (26, 27) having two clamping units (28, 29) each, each clamping bar (26, 27) comprising at least one suction unit (31) provided in a central region (37) of the clamping means (23) between the two clamping units (28, 29), and that the suction device (4) and the cleaning device (5) are disposed at a shared treatment body (7) which can be moved between a treatment position (8) and a rest position (9), the suction device (4) being provided to be immersed into the bag interior (11) of the bag (3) in the treatment position (8) while the cleaning device (5) remains at least substantially outside.
- Method for treating an open bag (3) filled with a bulk material wherein a top bag wall (25) of an open bag (3) is grasped and clamped and in which a suction device (4) of a treatment device (10) is inserted into the head room (2) of the bag (3) and sucks air out of the head room (2) while by means of cleaning nozzles (20) a cleaning device (5) of the treatment device (10) blows air onto the top inner bag wall (25) in the region of what is intended as the closing zone (40) for cleaning the inner top bag wall (25) prior to closing, wherein the top bag wall (25) is grasped by at least two clamping units (26, 27) having two clamping units (28, 29), each moving towards one another while between the clamping units suckers (31) open an insertion opening (32) in the top bag wall (25) to insert the suction device (4) of the treatment device (10) and to approach the cleaning device (5) to the inner top bag wall (25).
- The method according to the preceding claim wherein the suckers (31) open the insertion opening (32) in the top bag wall (25) approximately in the center between the clamping units for inserting the suction device (4) of the treatment device (10) and for approaching the cleaning device (5) to the inner top bag wall (25).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE102008014489A DE102008014489A1 (en) | 2008-03-17 | 2008-03-17 | Treatment device and method for treating an open bag filled with a bulk material |
Publications (2)
Publication Number | Publication Date |
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EP2103520A1 EP2103520A1 (en) | 2009-09-23 |
EP2103520B1 true EP2103520B1 (en) | 2011-08-17 |
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EP09003733A Active EP2103520B1 (en) | 2008-03-17 | 2009-03-16 | Handling device and method for handling an open sack filled with bulk goods |
Country Status (4)
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EP (1) | EP2103520B1 (en) |
AT (1) | ATE520596T1 (en) |
DE (1) | DE102008014489A1 (en) |
ES (1) | ES2371594T3 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4108578B1 (en) * | 2020-02-17 | 2024-05-22 | Tecnicas Mecanicas Ilerdenses, S.L. | Device for the extraction of gas from the upper part of a bag containing a powdery material, machine and corresponding procedure |
Families Citing this family (3)
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CA2828282C (en) * | 2012-03-27 | 2018-11-20 | General Packer Co., Ltd. | Packaging machine and packaging method |
DE102017109873A1 (en) * | 2017-05-08 | 2018-11-08 | Haver & Boecker Ohg | Cleaning device for cleaning a tubular inner wall of a container of bulk material particles |
DE102020112995A1 (en) | 2020-05-13 | 2021-11-18 | Haver & Boecker Ohg | Cleaning device and method for cleaning |
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US4262708A (en) * | 1979-09-14 | 1981-04-21 | Reynolds Metals Company | Method and apparatus for treating flexible containers |
US4418513A (en) * | 1981-04-16 | 1983-12-06 | Rexham Corporation | Packaging machine with means for closing flexible pouches around a nozzle |
FR2530582B3 (en) * | 1982-07-20 | 1985-08-30 | Barathe Christian | NEW COMPLETE CLASSIC OR VACUUM BAGGING SYSTEM WITH ARTICULATED OR FLEXIBLE CHUTE AND CONFORMING COMPACTOR BOX |
FR2588824B3 (en) * | 1985-10-21 | 1988-01-29 | Chervalier Lucienne | ROTARY OR LINEAR VACUUM BAGING DEVICE EQUIPPED WITH CONFORMING COMPACTION BOXES |
DE19541975A1 (en) | 1995-11-10 | 1997-05-15 | Haver & Boecker | Method of shaping and venting filled open bag |
DE19705743A1 (en) * | 1997-02-14 | 1998-08-20 | Windmoeller & Hoelscher | Filling and closing thermoplastic sacks |
US7716901B2 (en) * | 2004-05-27 | 2010-05-18 | Price Charles E | Packaging for particulate and granular materials |
DE102006021850A1 (en) * | 2006-05-09 | 2007-11-15 | Haver & Boecker Ohg | Filling machine for open, weldable bags |
-
2008
- 2008-03-17 DE DE102008014489A patent/DE102008014489A1/en not_active Withdrawn
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4108578B1 (en) * | 2020-02-17 | 2024-05-22 | Tecnicas Mecanicas Ilerdenses, S.L. | Device for the extraction of gas from the upper part of a bag containing a powdery material, machine and corresponding procedure |
Also Published As
Publication number | Publication date |
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EP2103520A1 (en) | 2009-09-23 |
ES2371594T3 (en) | 2012-01-05 |
DE102008014489A1 (en) | 2009-09-24 |
ATE520596T1 (en) | 2011-09-15 |
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