EP2848540B1 - Dispositif de serrage d'une section de sac d'une bande de feuille dans une station de remplissage d'une installation d'ensachage - Google Patents

Dispositif de serrage d'une section de sac d'une bande de feuille dans une station de remplissage d'une installation d'ensachage Download PDF

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Publication number
EP2848540B1
EP2848540B1 EP14166135.5A EP14166135A EP2848540B1 EP 2848540 B1 EP2848540 B1 EP 2848540B1 EP 14166135 A EP14166135 A EP 14166135A EP 2848540 B1 EP2848540 B1 EP 2848540B1
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EP
European Patent Office
Prior art keywords
clamping
jaw
section
additional
bag
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.)
Active
Application number
EP14166135.5A
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German (de)
English (en)
Other versions
EP2848540A1 (fr
Inventor
Hans-Ludwig Voss
Oliver Huil
Ralf Udally
Thomas Hawighorst
Rüdiger Große-Heitmeyer
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.)
Windmoeller and Hoelscher KG
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Windmoeller and Hoelscher KG
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Publication date
Application filed by Windmoeller and Hoelscher KG filed Critical Windmoeller and Hoelscher KG
Priority to PL14166135T priority Critical patent/PL2848540T3/pl
Publication of EP2848540A1 publication Critical patent/EP2848540A1/fr
Application granted granted Critical
Publication of EP2848540B1 publication Critical patent/EP2848540B1/fr
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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
    • B65B1/02—Machines characterised by the incorporation of means for making the containers or receptacles
    • 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
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/42—Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation
    • B65B43/46—Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation using grippers
    • B65B43/465—Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation using grippers for 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
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/12—Feeding flexible bags or carton blanks in flat or collapsed state; Feeding flat bags connected to form a series or chain
    • B65B43/123—Feeding flat bags connected to form a series or chain
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
    • B65B61/04—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages
    • B65B61/06—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages by cutting

Definitions

  • the present invention relates to a clamping device for clamping a bag section of a film web in a filling station of a bag filling system and to a method for clamping and filling a bag section of a film web in a filling station of a bag filling system.
  • Bag filling systems are generally known, see WO2004 / 108536 , and are used to cut off sack sections of a film web and to fill with a bulk material.
  • a known bag filling usually a filling station with a hopper over which the bulk material passes into the interior of the bag section.
  • a Clamping device with two jaws available. This serves to hold the sack portion between the two jaws and accordingly to position relatively accurately to the hopper. This ensures that the filled bulk material does not undesirably pull the bag section off the hopper and remove it.
  • a gripping device is known, which performs laterally gripping the bag section. The lateral gripping means that below the holding jaws also takes place a clamping gripping by the gripping device.
  • a disadvantage of known clamping devices is that the gripping takes place only with relatively great effort clean and especially wrinkle-free.
  • the respective film layer of the bag section is discarded and indeed in an unpredictable manner. So it can happen that a drape especially in the area arises in which then a clamping gripping should be done using the gripping device. So there is the danger that the gripping device engages a drape and thus produces a mechanical action on this drape. This can lead to unwanted mechanical stress and in particular to a defect in the bag section, z. B. lead to a predetermined breaking point.
  • such wrinkle sections are inclined so that the clamping does not take place sufficiently on the gripping device. Thus, the onward transport is not ensured in the necessary safe manner.
  • a clamping device serves for clamping a bag section of a film web in a filling station of a bag filling installation.
  • the clamping device according to the invention has a first clamping jaw and a second jaw movable relative to the first clamping jaw for clamping the bag section in a clamping section in its head region.
  • a clamping device according to the invention is characterized in that a first additional jaw is movably mounted on the first jaw. In this case, a second additional jaw is arranged on the second jaw for clamping the bag section at an additional clamping portion below the clamping portion.
  • this clamping device thus accesses known clamping devices.
  • the functionality of the first jaw and the second jaw results in being relatively movable relative to each other.
  • the first clamping jaw is a clamping jaw arranged stationarily on the bag filling system or the filling station.
  • the second jaw is movably mounted to the first jaw and thus also to the bag filling and filling station.
  • the bag section is arranged upright in the bag filling system.
  • the bulk material is filled from top to bottom, ie in the open area in the head area.
  • the opposite section, that is, the opposite end of the bag section is characterized as a bottom region or as a bottom end.
  • an additional auxiliary clamping device is now provided in a clamping device according to the invention.
  • This has a first additional jaw and a second additional jaw. These two additional jaws are correlated with the respective jaw and arranged on these. It is crucial that at least the first additional jaw is also movably mounted on the first jaw. In this case, the first clamping jaw and the first additional jaw, in particular with respect to the transport direction of the bag section, away from the filling station and thus arranged downstream of the bag section.
  • an additional clamping portion below the clamping portion is possible.
  • the bag section is held at two different sections, namely the additional clamping section and the clamping section, in particular clamped.
  • a defined positioning of the bag section takes place between these two sections, that is to say between the clamping section and the additional clamping section.
  • the bag section is thus drawn taut in the area between the additional clamping section and the clamping section, so that any wrinkles that would arise during the filling process, do not occur at all.
  • the additional jaws are designed such that they can preferably already at the beginning or even before the start of the filling process can achieve a clamping attachment in the additional clamping section.
  • a clamping device according to the invention In a bag filling plant, in which a clamping device according to the invention is used, it is in particular a system according to the so-called form, fill and seal (FFS) method.
  • FFS form, fill and seal
  • a film web is handled as a film tube. This unwinding preferably takes place continuously, so that it can then be converted via a buffer device, in particular designed as a dancer device, into a batch-wise or cyclically advancing the film web.
  • a buffer device in particular designed as a dancer device
  • a corner weld can be generated by means of a sealing device.
  • the bottom seam is produced by means of a bottom weld seam device and at the same time the film web is cut into individual bag sections.
  • a lateral further transport of the respective bag sections to the filling station in which the clamping device according to the invention is used.
  • Subordinated in the transport direction are still a top seal station and a Kopfnahtkühlstation for finalizing the bag section arranged in a filled form.
  • a lateral transport by means of a plurality of gripping devices is usually provided for the further transport from the bottom seam sealing station, from which also a cutting into individual bag sections takes place.
  • These gripping devices are preferably arranged in pendulum mode and generate the desired onward transport from station to station.
  • the first additional jaw can already be moved away after successful and successful gripping by means of the gripping device and thus clear the way for the subsequent transport movement of the gripping device.
  • This above movement of the first additional jaw can already take place when the first jaw is still in clamping engagement with the second jaw.
  • the additional clamping device and thus the first additional jaw swing away to the subsequent step of the transport movement of the gripping device of possible obstacles free. While in a simple arrangement of a fixed additional jaw on the jaw would have to wait until the jaw and thus the additional jaw are completely removed from the clamping position to perform the subsequent transport movement with the gripping device. According to the invention not only the potential drape and the associated problem is solved, but also reduces the cycle time of the filling station.
  • the individual jaws that is, the jaws and the additional jaws, can thereby have extension options or extension elements which have an adaptation to different sack widths.
  • the first jaw is arranged stationary to a frame of the clamping device.
  • This stationary embodiment involves a reduction in complexity and construction. This means that only the second jaw must be moved for the desired clamping action. Also, a reduced space requirement for the entire clamping device can be achieved.
  • the filling station has a frame, which is a part of the clamping device or a part of the filling station. This can also be part of the frame housing of the entire bag filling system. In other words, the relative movement takes place exclusively by a movement of the second jaw in order to provide the clamping functionality.
  • the movable mounting of the first additional jaw on the first jaw is further simplified in this way, since no double relative movement between the first jaw and frame and between the first additional jaw and the first jaw must be made. Also in this regard, therefore, the complexity of a clamping device according to the invention is reduced by this embodiment.
  • a gripping portion is arranged for gripping the bag portion between the jaws and the additional jaws with a gripping device.
  • additional clamping portion and clamping portion are spaced from each other in a defined manner. This distance is greater than or equal to corresponding gripping jaws of a gripping device.
  • This gripping jaws can thus grab the gripping portion of the bag section between the additional clamping section and clamping section and provide an attachment in a temporary manner for the bag section in a clamping manner.
  • leave additional clamping section and clamping section by appropriate design of the additional jaws and the jaws sufficient space to allow the gripping jaws of a gripping device in the gripping portion a transport gripping the bag section.
  • the second additional jaw is arranged stationarily on the second clamping jaw.
  • a reduction in the complexity of a clamping device according to the invention can be achieved. So it is possible to move the second additional jaw together with the second jaw.
  • such an embodiment is formed with a stationary arranged first jaw, as has already been explained. A separate drive device for the second additional jaw is no longer necessary in this way.
  • the second additional jaw and the second jaw are arranged in the transport direction of the bag section in front of the bag section.
  • the first additional jaw and the first jaw of the second additional jaw and the second jaw are arranged downstream in the transport direction of the bag section in the bag filling. This means that in the direction of the bag section, so first the second additional jaw and the second jaw and only then the first additional jaw and the first jaw come. Between the respective jaws then the bag section is arranged in a clamping manner.
  • the transport direction is oriented in particular to a gripping and oscillating movement of an entire gripping device of the bag filling system.
  • a conveying movement is carried out in a pendulum fashion from right to left.
  • a defined transport direction for the bag section in the bag filling system can be made available.
  • various advantages are achieved in this way.
  • the described cycle advantages with regard to the reduction or maintenance of the cycle time for the filling process can be maintained or achieved by this arrangement of the jaws.
  • a clamping drive for the movement of the second jaw and an additional drive for the movement of the first additional jaw are provided, which in particular independently controllable and / or controllable.
  • the drives can be designed hydraulically, pneumatically or motor.
  • an independent movement of the first additional jaw of the second jaw is possible.
  • the first additional jaw already be opened, while the clamping device and thus the second jaw is still in clamping position. This achieves the already described reduction of the cycle time for the filling process.
  • the strength of the clamping can be controlled separately from each other. Unnecessary force on the material is thus avoided in a particularly simple and cost-effective manner.
  • the first additional jaw and / or the second additional jaw are mounted on a connecting portion on the corresponding jaw, wherein the bearing portion has an at least partially arcuate course to a gripping portion for gripping with a gripping device accessible from the side of the bag section.
  • an interfering component does not prevent gripping by means of the gripping device due to an arcuate course from the side of the bag section.
  • the arcuate course is z.
  • the respective arcuate course of the bearing section is offset in the direction of the bag center, starting from the two lateral ends of the bag section.
  • the bearing portion is formed such that for the respective jaw and the respective additional jaw an equal or substantially equal length clamping length or clamping surface for the same clamping effects Can be made available.
  • the arcuate portion of the bearing portion may be raised by the material of the bag portion or may also be formed adjacent to this.
  • the clamping section and the additional clamping section are arranged by forming and arranging the clamping jaws and the additional jaws in the head region of the bag section, which extends from the top end of the bag section less than approximately 10% in the direction of the bottom end of the bag section extend. This means that both the clamping and the additional clamping takes place in the uppermost region of the bag section.
  • the clamping device according to the invention and functionality according to the invention makes available, the less interference takes place for the filling process for the remaining bag section. In particular, during the filling process, inflation and unfolding of the bag section is negatively influenced only to a slight extent.
  • the formation of the clamping device according to the invention brings a method according to the invention with the same advantages, as they have been explained in detail.
  • the transport path for a subsequent removal of the filled bag section using the gripping device is released in this way during the filling process again.
  • the necessary cycle time for this filling process is reduced in this way, since no more pivoting away the additional jaws must be awaited when the filling process is completed.
  • a freedom from wrinkles or a reduction of a wrinkle risk in the gripping portion is provided. This is achieved by the defined smooth drawing and tensioning of the bag section between the clamping section and the additional clamping section.
  • a method according to the invention can be further developed such that the first additional jaw, which is arranged downstream in the direction of transport of the bag section of the second additional jaw, is first, in particular exclusively, moved to open the two additional jaws.
  • the acceleration of the clock is thus still improved here, since an opening of the first additional jaw takes place in the transport direction and thus in the direction of the bag section.
  • this arranged first additional jaw plays an essential role in order to significantly reduce the cycle time of the filling station of the bag filling system.
  • Fig. 1 schematically shows a bag filling plant 100, in which, starting from a right Fundamentalrolle via a buffer device, a film web 200 is unwound.
  • Various stations 170 serve to perform a processing of the film web 200. These are from right to left a first station 170 as a cutting station with a cutting device and bottom seam sealing station, subsequently the filling station 110, subsequently a top seal station 170 and finally a top cooling station as station 170.
  • the individual bag sections 210 are provided with grippers, in particular with different gripping devices 40, moved by pendulum from right to left.
  • the filling station 110 bulk material is introduced into the bag section 210 via a hopper.
  • the clamping device 10 according to the invention with a jaw device 20 and an additional clamping device 30 is arranged.
  • Fig. 2 In a laterally rotated manner, the sack portion 210 in the filling station 110 is shown.
  • the head end 214 is directed upwards and the bottom end 216 is directed downwards.
  • the head portion 212 of the sack portion 210 extends Fig. 2 are left and right respectively a clamping device 10 according to the invention, each with a jaw device 20 and a Additional clamping device 30 is provided. It can also be clearly seen that a gripping device 40 can grip the bag section 210 between the clamping jaw device 20 and the auxiliary clamping device 30.
  • a clamping device 10 is shown in the side view. This has a clamping device 20 and an additional clamping device 30.
  • the clamping device 20 is provided with a stationary to a frame 12 formed first jaw 22. Movable rotatably mounted on the frame 12, a second jaw 24 is provided, which also has a clamping drive 28.
  • the additional clamping device 30 is provided with a rotatably mounted on the first jaw 22 and stored first auxiliary jaw 32. The drive of this rotational movement via an additional drive 38.
  • a second additional jaw 34 is provided, which is fixedly mounted on a bearing portion 50 and thus immobile relative to the second jaw 24. Also, the correlation to the transport direction T can be seen well, so that the first jaw 22 and the first additional jaw 32 are downstream of the bag section 210 in the transport direction T.
  • Fig. 5 the starting situation is shown after the bag section 210 has been introduced into the filling station 110. Subsequently, via the clamping drive 28, a closing of the jaw 22, as the Fig. 6 shows. This automatically moves the second additional jaw 34 in the position for the clamping. Subsequently, via the Additional drive 38 terminals in the additional clamping section 36 by the movement of the first additional jaw 32nd
  • Fig. 11 shows in perspective view schematically how an arcuate course of the bearing portion 50 may be formed. So here is the storage between the two jaws, so the second jaw 24 and the second additional jaw 34, on the arcuate bearing portion 50, which is here even lifted from a bag section 210, not shown formed.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)

Claims (10)

  1. Dispositif de serrage (10) pour serrer une partie formant sac (210) d'une feuille continue (200) dans un poste de remplissage (110) d'une installation d'ensachage (100), présentant un premier mors de serrage (22) et un deuxième mors de serrage (24) pouvant être déplacé par rapport au premier mors de serrage (22), pour serrer la partie formant sac (210) dans une partie de serrage (26) dans sa région de tête (212),
    caractérisé en ce
    qu'un premier mors supplémentaire (32) est monté à déplacement sur le premier mors de serrage (22), sachant qu'un deuxième mors supplémentaire (34) est disposé sur le deuxième mors de serrage (24), pour un serrage de la partie formant sac (210) dans une partie de serrage supplémentaire (36) en dessous de la partie de serrage (26).
  2. Dispositif de serrage (10) selon la revendication 1,
    caractérisé en ce
    que le premier mors de serrage (22) est disposé à poste fixe par rapport à un bâti (12) du dispositif de serrage (10).
  3. Dispositif de serrage (10) selon l'une des revendications précédentes,
    caractérisé en ce
    qu'une partie de préhension (46) est disposée entre la partie de serrage supplémentaire (36) et la partie de serrage (26), pour la saisie de la partie formant sac (210) entre les mors de serrage (22, 24) et les mors supplémentaires (32, 34) par un dispositif de préhension (40).
  4. Dispositif de serrage (10) selon l'une des revendications précédentes,
    caractérisé en ce
    que le deuxième mors supplémentaire (34) est disposé à poste fixe sur le deuxième mors de serrage (24).
  5. Dispositif de serrage (10) selon l'une des revendications précédentes,
    caractérisé en ce
    que le premier mors supplémentaire (32) et le premier mors de serrage (22) sont disposés à la suite du deuxième mors supplémentaire (34) et du deuxième mors de serrage (24) dans la direction de transport (T) de la partie formant sac (210) dans l'installation d'ensachage (100).
  6. Dispositif de serrage (10) selon l'une des revendications précédentes,
    caractérisé en ce
    qu'il est prévu un entraînement de serrage (28) pour le déplacement du deuxième mors de serrage (24) et un entraînement supplémentaire (38) pour le déplacement du premier mors supplémentaire (32), entraînements qui peuvent notamment être commandés et/ou régulés indépendamment l'un de l'autre.
  7. Dispositif de serrage (10) selon l'une des revendications précédentes,
    caractérisé en ce
    que le premier mors supplémentaire (32) et/ou le deuxième mors supplémentaire (34) sont montés sur le mors de serrage correspondant (22, 24) par l'intermédiaire d'une partie de liaison (50), sachant que la partie (50) formant palier présente une allure au moins partiellement coudée, afin de pouvoir accéder par le côté de la partie formant sac (210) à une partie de préhension (46) en vue d'une saisie par un dispositif de préhension (40).
  8. Dispositif de serrage (10) selon l'une des revendications précédentes,
    caractérisé en ce
    que la partie de serrage (26) et la partie de serrage supplémentaire (36) sont, par la forme et la disposition données aux mors de serrage (22, 24) et aux mors supplémentaires (32, 34), disposées dans la région de tête (212) de la partie formant sac (210), région qui s'étend, depuis l'extrémité de tête (214) de la partie formant sac (210), sur moins d'environ 10% en direction de l'extrémité de fond (216) de la partie formant sac (210).
  9. Procédé pour le serrage et le remplissage d'une partie formant sac (210) d'une feuille continue (200) dans un poste de remplissage (110) d'une installation d'ensachage (100) au moyen d'un dispositif de serrage (10), en particulier présentant les caractéristiques d'une des revendications 1 à 8, comprenant les étapes suivantes :
    - fermeture d'un premier mors de serrage (22) et d'un deuxième mors de serrage (24), pour un serrage de la partie formant sac (210) dans une partie de serrage (26) dans sa région de tête (212),
    - fermeture d'un premier mors supplémentaire (32) et d'un deuxième mors supplémentaire (34), pour un serrage de la partie formant sac (210) dans une partie de serrage supplémentaire (36) en dessous de la partie de serrage (26),
    - démarrage du processus de remplissage de la partie formant sac (210) ;
    - saisie de la partie formant sac (210), par un dispositif de préhension (40), dans une partie de préhension (46) entre la partie de serrage supplémentaire (36) et la partie de serrage (26),
    - ouverture des deux mors supplémentaires (32, 34).
  10. Procédé selon la revendication 9, caractérisé en ce que, pour ouvrir les deux mors supplémentaires (32, 34), le premier mors supplémentaire (32), qui est disposé à la suite du deuxième mors supplémentaire (34) dans la direction de transport (T) de la partie formant sac (210), est déplacé en premier, en particulier est le seul à être déplacé.
EP14166135.5A 2013-05-29 2014-04-28 Dispositif de serrage d'une section de sac d'une bande de feuille dans une station de remplissage d'une installation d'ensachage Active EP2848540B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL14166135T PL2848540T3 (pl) 2013-05-29 2014-04-28 Urządzenie zaciskowe do zaciskania odcinka worka z pasma folii w stacji napełniania instalacji do workowania

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102013105556.7A DE102013105556B4 (de) 2013-05-29 2013-05-29 Klemmvorrichtung für das Klemmen eines Sackabschnitts einer Folienbahn in einer Füllstation einer Sackfüllanlage

Publications (2)

Publication Number Publication Date
EP2848540A1 EP2848540A1 (fr) 2015-03-18
EP2848540B1 true EP2848540B1 (fr) 2015-12-23

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EP14166135.5A Active EP2848540B1 (fr) 2013-05-29 2014-04-28 Dispositif de serrage d'une section de sac d'une bande de feuille dans une station de remplissage d'une installation d'ensachage

Country Status (5)

Country Link
EP (1) EP2848540B1 (fr)
JP (1) JP6440380B2 (fr)
DE (1) DE102013105556B4 (fr)
ES (1) ES2563159T3 (fr)
PL (1) PL2848540T3 (fr)

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JP6938336B2 (ja) * 2017-10-27 2021-09-22 Ｐａｃｒａｆｔ株式会社 包装機及び包装方法
EP4183696A1 (fr) * 2021-11-23 2023-05-24 BEUMER Group GmbH & Co. KG Dispositif de fourniture des sacs vides, ainsi que procédé correspondant

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DE102013105556B4 (de) 2017-05-18
JP2014231395A (ja) 2014-12-11
DE102013105556A1 (de) 2014-12-04
PL2848540T3 (pl) 2016-06-30
EP2848540A1 (fr) 2015-03-18
ES2563159T3 (es) 2016-03-11
JP6440380B2 (ja) 2018-12-19

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