EP3181464A1 - Procede et dispositif de remplissage et de fermeture d'un emballage souple - Google Patents

Procede et dispositif de remplissage et de fermeture d'un emballage souple Download PDF

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Publication number
EP3181464A1
EP3181464A1 EP15201027.8A EP15201027A EP3181464A1 EP 3181464 A1 EP3181464 A1 EP 3181464A1 EP 15201027 A EP15201027 A EP 15201027A EP 3181464 A1 EP3181464 A1 EP 3181464A1
Authority
EP
European Patent Office
Prior art keywords
package
product
jacket
opening
packaging
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP15201027.8A
Other languages
German (de)
English (en)
Inventor
Matthias Wolf
Ralf Willner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hilti AG
Original Assignee
Hilti AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hilti AG filed Critical Hilti AG
Priority to EP15201027.8A priority Critical patent/EP3181464A1/fr
Publication of EP3181464A1 publication Critical patent/EP3181464A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • 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
    • B65B1/04—Methods of, or means for, filling the material into the containers or receptacles
    • B65B1/06—Methods of, or means for, filling the material into the containers or receptacles by gravity flow
    • 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
    • B65B51/22—Applying or generating heat or pressure or combinations thereof by friction or ultrasonic or high-frequency electrical means, i.e. by friction or ultrasonic or induction welding
    • B65B51/225—Applying or generating heat or pressure or combinations thereof by friction or ultrasonic or high-frequency electrical means, i.e. by friction or ultrasonic or induction welding by ultrasonic welding
    • 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
    • B65B7/06—Closing containers or receptacles deformed by, or taking-up shape, of, contents, e.g. bags, sacks by collapsing mouth portion, e.g. to form a single flap

Definitions

  • the present invention relates to a method for filling a flexible package comprising a bottom, a jacket and an opening with a product containing a coarse sand-like material and closing the package at the opening.
  • the present invention additionally relates to a device for filling a flexible package comprising a bottom, a jacket and an opening with a product containing a coarse sand-like material and closing the package at the opening.
  • Coarse, sand-like material containing products are z.
  • B chemically highly filled masses or liquids.
  • the coarse, sand-like materials are usually the fillers.
  • chemically highly filled masses or liquids is meant herein a material having one, two or more components.
  • Such compositions or liquids may be, for example, sealants, multicomponent mortars, multicomponent coating compositions, multicomponent paints, multicomponent foam precursors, multicomponent adhesives, multicomponent sealants, multicomponent abrasive pastes and multicomponent lubricants.
  • the packaging of such materials into flexible containers and the subsequent closure of the package can be done in two ways.
  • foil pouches which are produced from foil tubes can be used.
  • a film tube is made and then filled.
  • the film bag is defined by clamping the filling product in the film tube and closed by means of two spaced clips. Finally the resulting bags are separated between the clips.
  • stand-up pouches can be used as flexible (film) packaging.
  • the stand-up pouches are prefabricated, ie not created during filling. After the prefabrication of the stand-up pouches, these are filled in a parallel process and subsequently likewise closed in parallel. The filling is only approximately free of air.
  • a welding process for. B. may be an ultrasonic welding process.
  • the surface In thermal welding, the surface must be clean to create a defect-free and sealed seal.
  • ultrasonic welding occurs in the case of a contaminated welding zone usually displace the particles there. As a result, a defect-free and tight sealed seam can be produced despite the contamination.
  • the particles forming the impurity are welded through and subsequently also to a secure and tight sealed seam. The products therefore have no influence on the stability of the sealed seam when sealed by ultrasonic welding.
  • a disadvantage of the known from the prior art method for packaging products containing coarse, sand-like materials is that in the case of a packaging made of film tubes, the filling and the emergence of the packaging can not be separated. Thereby are the Throughput and the output of a packaging machine limited and can not readily to current requirements, eg. As fluctuating customer orders are adapted. Preliminary work, in the sense of prefabrication of the packaging, or the parallelization of work processes on the same machine are not possible. However, in the case of packaging produced from film tubes, an air-free filling can be achieved.
  • the pouches can be prefabricated. By prefabrication of the packaging parallelization of the filling operations is possible later, so that the throughput of a packaging machine is very flexible adaptable to current requirements.
  • the object of the present invention is therefore to provide a method by which it is possible to fill a prefabricated flexible container with products containing coarse, sand-like material, and then close the container in such a way that the filling is air-free.
  • the inventive method results in that the packages can be prefabricated and at the same time an air-free packaging is possible.
  • This combines the advantages of tubular bag packaging with the advantages of stand-up bag packaging without combining their disadvantages.
  • a prefabricated packaging eg. B. a stand-up pouch
  • air mixes under the product e.g. B. a stand-up pouch
  • the jacket of the package can be divided into two sections. The one, usually lower portion of the jacket of the package is filled with a mixture of product and air. The other, usually overlying area of the package is not filled with the product. This means that the packaging is not filled to the brim with the product, but above the opening-side interface of the product still survives an existing from the shell of the packaging edge.
  • a further development of the method according to the invention also provides that the integral connection is effected by a welding method, in particular a roller seam welding method.
  • a welding method in particular a roller seam welding method.
  • a roll seam welding method By welding a stable and air and product-tight, cohesive connection is realized.
  • the sealing of the packaging by the material connection of the areas of the jacket of the packaging located in at least one line contact can take place in a continuous process. This is particularly advantageous when it comes to producing as many as possible cohesive connections as quickly as possible.
  • the roll seam welding process a variety of packaging, the z. B. are arranged along a line next to each other, are closed in a continuous process. The roll seam welding does not have to be interrupted with such an arrangement of the packages.
  • the geometry of the welding jaws used in the welding process determines the shape of the integral connection and the sealing seam.
  • several linear cohesive connections are created, which may be arranged in parallel, but need not.
  • large-area, cohesive connections can be created.
  • the integral connection is achieved by ultrasonic welding, in particular with at least one roller sonotrode.
  • the roller sonotrode in step b) also applies pressure to the product in order to force air out of the packaging.
  • the ultrasonic welding can as well Run continuously, thereby enabling the cohesive closing of a variety of packaging in a short time.
  • the output of such a method thereby increases.
  • This variant of the method according to the invention ensures air-free packaging of the product. In particular, this avoids a backflow of air into the product. By integrating these two process steps into a single element, time is saved in the process. At the same time, this makes the process more robust.
  • the structural design of the device for packaging is simplified.
  • the method according to the invention can also be designed so that the at least one roller sonotrode is only activated for ultrasonic welding when the rollers have made line contact. That is, the welding function of the roller sonotrode is disabled upon squeezing the product-filled portion of the package and pressing together opposite portions of the jacket of the package. Only to create the cohesive connection, the welding function is activated. The process therefore runs very economically with regard to the energy consumption of the roller sonotrode. Also, the useful life of the ultrasonic welding system forming components is reduced, resulting in a low cost of maintenance and low wear of these components follows.
  • the compression in step b) and / or the pressing together in step c) takes place from two opposite sides, so that the jacket is moved in each case halfway from each side and applied to the product.
  • the symmetrical distribution of the product within the package and the symmetrical arrangement of the integral connection facilitates the handling of the sealed Packaging as well as the stacking, z. On pallets.
  • the conditions are created to be able to achieve a large packing density in the storage and transport of such packaging. This is economically and ecologically advantageous.
  • the method according to the invention has been described for simplicity and clarity for a single package. However, it is also an object of the invention to use the method according to the invention in parallel for several packages.
  • An additional object of the present invention is to provide a device which allows filling of a prefabricated flexible container with a product containing coarse, sand-like material and subsequent closure of the container so that the filling is air-free.
  • Such a device is particularly suitable for implementing the method according to the invention.
  • the device allows the use of prefabricated stand-up bag packaging and at the same time ensures that an air-free filling of these stand-up bag packaging is possible.
  • the means for pressing opposite areas of the shell of the package press these areas against each other in such a way that the product is closed by the ambient air and at the same time no air flows back into the product-filled region of the jacket of the packaging.
  • the means for pressing against each other are designed so that they create at least one continuous line contact in the jacket of the packaging. Of course, the means for pressing against each other, for. B. parallel arranged to create line contacts. Creating large-area contacts is also possible.
  • the closing device according to the invention then produces one or more line-like or large-area connections of regions of the jacket of the packaging.
  • the means for pressing against one another at the opening-side interface of the product comprise two opposing pressing elements which receive the packaging uniformly and are adjustable between them.
  • the closing device comprises a welding device, in particular a roller seam welding device.
  • a welding device in particular a roller seam welding device.
  • the packaging to be sealed z. B. arranged on a straight or curved line next to each other transversely to the transport direction of the hoses and welded by a movable welding device in one go.
  • the juxtaposed packages can also be closed with a common movement through the welding.
  • the welding rollers on the zu to the connecting line or area contacts to create the connection.
  • the closing device of the device according to the invention may comprise an ultrasonic welding device, in particular a roller sonotrode.
  • an ultrasonic welding device in particular a roller sonotrode.
  • a further embodiment of the device according to the invention provides that two opposing rollers are provided, which at the same time form the pressing elements, wherein at least one of the rollers is a roller sonotrode.
  • This structure achieves a high degree of functional integration. By using the rollers for both functions it is avoided that air from the environment flows back into the packaging between the pressing and the closing of the packaging.
  • Fig. 1 a method in several steps and a device for filling and closing of bag-shaped packaging are shown.
  • the device comprises a filling device 2, means 4 for compressing, means 6 for pressing against each other and a closing device 8 (see Fig. 2 ).
  • a flexible prefabricated package 10 is filled with a product 12 containing coarse, sand-like materials.
  • the product 12 is filled by the filling device 2 via an opening 16 of the bag-like package 10 in this.
  • the package 10 comprises a bottom 18 and a jacket 20, the package 10 being open at the top during filling.
  • the package 10 is positioned in the device.
  • Fig. 1 b) shows the state after filling the package 10.
  • This interface 24 at the same time divides the jacket 20 of the package 10 into two areas.
  • a first lower region 26 in the drawing is filled with the product 12.
  • a second, arranged in the drawing above the first region 28 is not filled with the product 12 and is as it were over as an edge.
  • air may be mixed with the product 12. In the area 28 of the shell 20 is also air.
  • Fig. 1 c For example, the region 26 of the shell 20 of the package 10 filled with the product 12 is compressed by applying a pressure from the outside.
  • the pressure is for this purpose applied by mechanical means 4 for compressing the filled with the product 12 portion 26 of the shell 20 of the package 10.
  • These means 4 are shown schematically as arrows in FIGS FIGS. 1c) and 1 d).
  • the compression means 4 apply the pressure to the package 10 and the product 12 therein so that any air 32 mixed with the product 12 escapes from the package 10 via the opening 16 and the jacket 20 is pressed against the product in turn is piled up like a cluster.
  • the escaping air 32 is also shown schematically with curved arrows. As compared to the Fig. 1 c) with the Fig. 1 d) it can be seen, the means 4 move towards each other and towards the opening 16 for compression. This avoids the backflow of air into the package 10.
  • Fig. 1 c) shows an intermediate state during compression and Fig. 1 d) the state after squeezing.
  • the previously mixed with the product 12 air 32 is according to Fig. 1 d) completely escaped from the product 12, and also above the product 12 there is no air space in the package 10.
  • Fig. 1 e the pressing together of opposite regions of the jacket 20 of the package 10 in the region of the now closed opening 16 is shown.
  • the means 6 for pressing against the opposite regions of the jacket 20 of the package 10 are shown schematically and comprise two opposing, uniformly adjustable pressing elements 34. The pressing together of the opposite regions of the shell 20 takes place in a part of the jacket 20, which is not with the product is filled.
  • the pressing together of the opposite regions of the jacket 20 with the same feed path takes place symmetrically from two opposite sides.
  • the means 6 for pressing together take the package 10 between them and are uniformly adjustable to each other.
  • Fig. 1 e is located in the package 10 product 12 is closed to the environment without air. This takes place via at least one over the entire width of the package extending line contact 36 opposite areas of the shell 20. It is of course at this point also several line contacts or a surface contact conceivable.
  • FIG. 1 f is a cohesive connection of the in line contact 36 located areas of the shell 20 of the package 10 is shown.
  • the package 10 is closed under air-free completion of the product 12.
  • the closing device for cohesive closing of the device is not shown here for reasons of clarity.
  • a possible closing device 8 shown in more detail.
  • this comprises a roller seam welding device, which in turn comprises two opposing welding rollers 42, 44.
  • the two schematically illustrated welding rollers 42, 44 are rotatably mounted about axes 48, 50 and roll along the previously formed at least one line contact 36 from there to create a material connection of the adjacent areas of the shell 20.
  • welding rollers and welding jaws can be used instead of the welding rollers and welding jaws. Both welding jaws can be moved linearly towards each other. Also, one of the welding jaws can be fixed and the other linearly movable.
  • the schematically illustrated welding rollers 42, 44 may also be roller sonotrodes of an ultrasonic welding device. These roller sonotrodes also roll along the previously formed line contact 36 and form a cohesive connection of the areas of the jacket 20 which are in line contact 36. Analogously to the welding apparatus, the sonotrodes can also be designed as fixed or linearly movable jaws.
  • the FIG. 3 shows a sectional side view of the locking device 8, which is welding straight. The sectional plane corresponds to the plane of the axes 48, 50 of the welding rollers 42, 44 from the Fig. 2 ,
  • FIG. 4 12 schematically shows how an alternative arrangement of roller sonotrodes 52, 54 can be used to realize the compression of the portion 12 of the jacket 20 of the package 10 filled with the product 12.
  • the roller sonotrodes 52, 54 are mounted on axes of rotation 56, 58 running parallel to the line contact 36.
  • the roller sonotrodes move from the filled with the product 12 portion of the shell 20 of the Package 10 towards the opening 16 of the package 10 by rolling on the outside of the package. In doing so, they exert pressure on the package 10 and the product 12.
  • air is pushed out of the package 10 (see also Fig. 1 c) , In this movement, the axes of rotation 56, 58 follow movement paths 60, 62, which are schematically represented by dotted lines.
  • only a single roller sonotrode can be used, which works against a fixed counter bearing.
  • the ultrasonic welding should only take place when the compression is completed.
  • the ultrasonic welding is only activated when the roller sonotrodes clamp the line contact 36 between them.
  • Fig. 5 is the arrangement off Fig. 4 shown in a plan view.
  • the two roller sonotrodes 52, 54 clamp between the area of the shell.
  • the axes of rotation 56, 58 of the two roller sonotrodes are arranged parallel to one another and parallel to the line contact. To ensure a secure cohesive connection, the two roller sonotrodes stand on both sides slightly beyond the package 10.
  • FIGS. 1 to 5 illustrated method steps are shown symmetrically and run from two opposite sides of the package. In the context of the invention, it is likewise conceivable that the method steps proceed asymmetrically. The same applies to the structure of the device according to the invention.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
EP15201027.8A 2015-12-18 2015-12-18 Procede et dispositif de remplissage et de fermeture d'un emballage souple Withdrawn EP3181464A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP15201027.8A EP3181464A1 (fr) 2015-12-18 2015-12-18 Procede et dispositif de remplissage et de fermeture d'un emballage souple

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP15201027.8A EP3181464A1 (fr) 2015-12-18 2015-12-18 Procede et dispositif de remplissage et de fermeture d'un emballage souple

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EP3181464A1 true EP3181464A1 (fr) 2017-06-21

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EP15201027.8A Withdrawn EP3181464A1 (fr) 2015-12-18 2015-12-18 Procede et dispositif de remplissage et de fermeture d'un emballage souple

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020224688A1 (fr) * 2019-05-06 2020-11-12 C-Pack Verpackungsmaschinen Gmbh Procédé et dispositif pour la fermeture d'emballages

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH267832A (fr) * 1939-05-02 1950-04-15 St Regis Paper Co Machine pour ouvrir, remplir et fermer des sacs.
FR2471919A1 (fr) * 1979-12-21 1981-06-26 Pohlig Heckel Bleichert Dispositif pour fermer par soudage des sacs en matiere plastique remplis en particulier de matieres en vrac ou analogues
DE3634890A1 (de) * 1986-10-14 1988-04-28 Haver & Boecker Vorrichtung zum fuellen und verschliessen von offenen saecken
DE19541975A1 (de) * 1995-11-10 1997-05-15 Haver & Boecker Verfahren und Vorrichtung zum Formen und Entlüften von offenen Säcken nach dem Füllvorgang
WO2009000288A1 (fr) * 2007-06-25 2008-12-31 Haver & Boecker Ohg Procédé et dispositif de soudage de sacs

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH267832A (fr) * 1939-05-02 1950-04-15 St Regis Paper Co Machine pour ouvrir, remplir et fermer des sacs.
FR2471919A1 (fr) * 1979-12-21 1981-06-26 Pohlig Heckel Bleichert Dispositif pour fermer par soudage des sacs en matiere plastique remplis en particulier de matieres en vrac ou analogues
DE3634890A1 (de) * 1986-10-14 1988-04-28 Haver & Boecker Vorrichtung zum fuellen und verschliessen von offenen saecken
DE19541975A1 (de) * 1995-11-10 1997-05-15 Haver & Boecker Verfahren und Vorrichtung zum Formen und Entlüften von offenen Säcken nach dem Füllvorgang
WO2009000288A1 (fr) * 2007-06-25 2008-12-31 Haver & Boecker Ohg Procédé et dispositif de soudage de sacs

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020224688A1 (fr) * 2019-05-06 2020-11-12 C-Pack Verpackungsmaschinen Gmbh Procédé et dispositif pour la fermeture d'emballages

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