EP3439970B1 - Verfahren und vorrichtung zum bilden von einseitig offenen packungskörpern aus beidseitig offenen packungsmänteln - Google Patents

Verfahren und vorrichtung zum bilden von einseitig offenen packungskörpern aus beidseitig offenen packungsmänteln Download PDF

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Publication number
EP3439970B1
EP3439970B1 EP17709081.8A EP17709081A EP3439970B1 EP 3439970 B1 EP3439970 B1 EP 3439970B1 EP 17709081 A EP17709081 A EP 17709081A EP 3439970 B1 EP3439970 B1 EP 3439970B1
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EP
European Patent Office
Prior art keywords
package
sleeves
channel
packing
jacket
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
EP17709081.8A
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German (de)
English (en)
French (fr)
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EP3439970A1 (de
Inventor
Johannes Marx
Jürgen RICHTER
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.)
SIG Services AG
Original Assignee
SIG Technology AG
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Filing date
Publication date
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Publication of EP3439970A1 publication Critical patent/EP3439970A1/de
Application granted granted Critical
Publication of EP3439970B1 publication Critical patent/EP3439970B1/de
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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
    • B65B3/00—Packaging plastic material, semiliquids, liquids or mixed solids and liquids, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B3/02—Machines characterised by the incorporation of means for making the containers or receptacles
    • B65B3/025—Making parallelepipedal containers from a single carton blank
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/006—Controlling; Regulating; Measuring; Improving safety
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/26—Folding sheets, blanks or webs
    • B31B50/28—Folding sheets, blanks or webs around mandrels, e.g. for forming bottoms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/26—Folding sheets, blanks or webs
    • B31B50/28—Folding sheets, blanks or webs around mandrels, e.g. for forming bottoms
    • B31B50/30—Folding sheets, blanks or webs around mandrels, e.g. for forming bottoms the mandrels moving
    • B31B50/32—Folding sheets, blanks or webs around mandrels, e.g. for forming bottoms the mandrels moving in circular paths
    • B31B50/322—Folding sheets, blanks or webs around mandrels, e.g. for forming bottoms the mandrels moving in circular paths the mandrels extending radially from the periphery of a drum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/74—Auxiliary operations
    • B31B50/76—Opening and distending flattened articles
    • B31B50/78—Mechanically
    • B31B50/782—Mechanically by pushing the opposite ends of collapsed blanks towards each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/74—Auxiliary operations
    • B31B50/76—Opening and distending flattened articles
    • B31B50/78—Mechanically
    • B31B50/788—Mechanically by introducing the blanks into undeformable holders, e.g. on a drum or on chains
    • 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
    • B65B41/00—Supplying or feeding container-forming sheets or wrapping material
    • B65B41/02—Feeding sheets or wrapper blanks
    • B65B41/04—Feeding sheets or wrapper blanks by grippers
    • B65B41/06—Feeding sheets or wrapper blanks by grippers by suction-operated grippers
    • 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
    • B65B43/14—Feeding individual bags or carton blanks from piles or magazines
    • B65B43/145—Feeding carton blanks from piles or magazines
    • 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
    • B65B43/26—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks
    • 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
    • B65B43/26—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks
    • B65B43/32—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks by external pressure diagonally applied
    • B65B43/325—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks by external pressure diagonally applied to boxes, cartons or carton blanks
    • 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
    • B65B43/50—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 rotary tables or turrets
    • 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
    • B65B43/54—Means for supporting containers or receptacles during the filling operation
    • 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
    • B65B55/02—Sterilising, e.g. of complete packages
    • B65B55/04—Sterilising wrappers or receptacles prior to, or during, packaging
    • B65B55/10—Sterilising wrappers or receptacles prior to, or during, packaging by liquids or gases
    • 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
    • B65B61/24—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for shaping or reshaping completed packages
    • 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
    • B65B7/16—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2100/00—Rigid or semi-rigid containers made by folding single-piece sheets, blanks or webs
    • B31B2100/002—Rigid or semi-rigid containers made by folding single-piece sheets, blanks or webs characterised by the shape of the blank from which they are formed
    • B31B2100/0022—Rigid or semi-rigid containers made by folding single-piece sheets, blanks or webs characterised by the shape of the blank from which they are formed made from tubular webs or blanks, including by tube or bottom forming operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2105/00—Rigid or semi-rigid containers made by assembling separate sheets, blanks or webs
    • B31B2105/002—Making boxes characterised by the shape of the blanks from which they are formed
    • B31B2105/0022—Making boxes from tubular webs or blanks, e.g. with separate bottoms, including tube or bottom forming operations

Definitions

  • the invention relates to a method for forming packaging bodies that are open on one side from packaging casings that are open on both sides for the production of filled packs.
  • the invention further relates to a device for forming packaging bodies that are open on one side from packaging casings that are open on both sides for the production of filled packs According to the preamble of claim 10.
  • Methods and devices for forming packaging bodies which are open on one side from packaging casings which are open on both sides have been known for some time. The methods are used in particular to produce filled packs, and processes and devices for filling packs with products in different configurations are also known.
  • packing bodies are understood to mean containers such as, for example, composite cardboard packaging, which are at least partially formed from a packaging material in the form of a laminate comprising a cardboard layer and outer, in particular thermoplastic, plastic layers, for example of polyethylene (PE).
  • the carton gives the packs sufficient stability so that the packs can be handled easily and stacked, for example.
  • the plastic layers protect the cardboard from moisture and the food from the absorption of unwanted substances from the pack.
  • Corresponding packing bodies are typically filled with products in the form of foodstuffs, in particular beverages, the products being predominantly flowable products.
  • the packing bodies are filled with food in a sterile or aseptic environment of a filling machine, since the food should have a long shelf life after the packs have been filled.
  • the filling machines have, for example, sterilization rooms or aseptic chambers in which the package bodies are sterilized and then filled and sealed under as sterile conditions as possible. After the packing bodies have been filled, they are typically sealed in the filling machine. When using appropriate packaging materials, the packing body is closed by sealing the open end.
  • the packing bodies are preferably formed on the filling machine from packing sleeves, which in turn are produced from blanks, in particular by sealing the longitudinal edges of the blanks to one another.
  • the inner longitudinal edge can be folded outwards in order to prevent moisture from penetrating into the packaging material, in particular the carton.
  • Packing sleeves are made from a packaging material and are open at the opposite longitudinal ends.
  • the packaging sleeves are pre-folded along four fold lines running longitudinally to the packaging sleeve, thereby creating folding edges which form the later edges of the packaging, which typically forms a square or rectangular cross section.
  • the packaging sleeves are folded flat around two opposite folding edges. Two of the pre-folded fold lines are folded back.
  • the packing jacket then essentially forms two sections lying parallel to one another and lying one on top of the other.
  • the flat-folded packaging sleeves are transferred as a stack to a magazine on the filling machine.
  • the front section of the packaging jacket at the front end of the stack is gripped by suction cups and away from the stack pulled, the packing jacket unfolding, typically until an at least substantially square or rectangular cross section is formed.
  • the unfolding takes place along the pre-folded folding lines, two of which have formed the folding edges of the folded-up packaging jacket, since the packaging material can be easily folded or folded along the, in particular pre-folded, folding lines.
  • the correspondingly unfolded packing jacket is then pulled onto a mandrel of a so-called mandrel wheel, the cross section of the mandrel corresponding to the cross section of the packing jacket.
  • the packing jacket initially projects outward beyond the mandrel, so that the projecting part of the packing jacket can be folded against the front face of the mandrel and pressed and sealed there.
  • the corresponding longitudinal end of the packaging jacket is closed and regularly forms the bottom of the later filled package.
  • the closed end of the package jacket could also form the head of the later package, if it is filled through the open bottom, for example.
  • the packaging bodies which are open on one side, are introduced into a sterilization zone of the filling machine. This is usually done by successively transferring the package bodies to the cells of a transport device that receive the package bodies. The transport device then ensures that the package bodies are transported through the sterilization zone of the filling machine at a defined speed and at a defined distance from one another. In the sterilization zone, the package bodies are preheated with hot sterile air and then, typically with hydrogen peroxide, sterilized and dried with sterile air. The sterile packing bodies are transferred to the filling and sealing zone and filled there. The opening of the filled packing bodies is then closed before the closed packing is transported out of the filling and sealing zone via the transport device and is then removed from the corresponding cells of the transport device.
  • the packing bodies are transported by the transport device in a straight line through the filling machine.
  • Corresponding filling machines are also referred to as cross-country skiers.
  • the so-called rotary machines the packing bodies describe a more or less arc-shaped movement, which can comprise one or more circular arc sections.
  • the present invention basically relates to both types of filling machines.
  • the method and the device of the type described above have proven themselves for the production of packs with at least substantially rectangular or square cross sections. However, the production of packs with cross sections that differ significantly therefrom is only possible to a limited extent or not at all.
  • the packing sleeves have to be folded flat for space reasons and then simply and reliably shaped using the mandrel wheel.
  • the shape of the packs must allow the pack sleeves to easily get onto the mandrel wheel and the pack bodies to be reliably removed from the mandrel wheel.
  • the present invention is therefore based on the object of designing and developing the method and the device of the type mentioned at the outset in such a way that packs with a cross section which is neither square nor rectangular can be formed simply and reliably.
  • This object is achieved according to claim 1 by a method for forming packaging bodies that are open on one side from packaging casings that are open on both sides for the production of filled packings in that the packaging casings in the molding station, before they are positioned between the mold halves, by means of one with the two opposite folding edges of the packing jacket coming into contact and tapering transversely to the packing jacket.
  • the stated object is also achieved in a device according to the preamble of claim 10 in that the forming station has a channel for at least partially unfolding the packing sleeves moved through the channel. It has thus been recognized that it may be expedient not to unfold the packaging sleeves when removing them from the stack of packs and to transfer them directly to the mandrels of a mandrel wheel, but to use a separate forming station for unfolding the packaging sleeves. In order to be able to easily unfold the packaging sleeves when removing them from the stack, four pre-folded folding lines are required.
  • the packaging jacket folds up, the folded edges forming the edges of the unfolded packaging jacket. This is a tried-and-tested method, but the folded edges also have a significant influence on the cross-sectional shape of the packaging jacket.
  • the use of the forming station allows the use of packing sleeves with only two folding edges, if necessary, which serve to fold the packing sleeves flat to accommodate them in a stack.
  • the two folded edges do not have to determine the shape, in particular the cross section, of the later pack.
  • the pack sleeves can be brought into the desired shape without the folded edges having to be arranged in corners of the pack or on edges of the jacket of the pack.
  • the folded edges can be arranged, for example, in flat sections of the casing of the pack, in order to be able to provide the edges of the casing of the pack independently of the position of the folded edges, or to partially or completely avoid sharp edges if necessary.
  • the edge regions of the shells of the packs can thus be formed with a very large radius in the molding station, and curved side walls of the sheath of the pack can also be formed more easily, alternatively or additionally.
  • the packaging jacket preferably has further fold lines or creasing lines, which are used, for example, to fold the longitudinal ends of the packaging jacket for the purpose of closing the packaging jacket.
  • a head and a bottom of the pack are preferably formed by folding along the further fold lines, and are sealed in particular.
  • the fold lines or crease lines are preferably stamped into the packaging material, in particular by so-called creasing, which is why the fold lines produced in this way can also be referred to as crease lines.
  • the fold lines or crease lines are created by a line-shaped material displacement with tools that press against the packaging material, for example with punching or pressing tools.
  • the fold lines or crease lines form line-like material weakenings of the packaging material. The bendability of the packaging material is increased along the fold lines thus produced.
  • the pre-folding of the corresponding folding lines takes place before the stacking of the packaging sleeves so that the packaging sleeves can be unfolded more easily around the pre-folded folding lines after removal from the stack. This is not necessary in the present case because of the forming station and the unfolding of the packing sleeves therein. If, in the longitudinal direction of the packaging jacket, there should be continuous, straight folding lines in addition to the folding edges, which is basically unnecessary, these are preferably not prefolded.
  • folding lines and / or folding edges of the finished package can cause folds or kinks in the packaging material, by reducing the number of folding lines and / or folding edges, wider areas of the package can be created without undesired kinks or folds, which may be preferred.
  • the packs can, for example, be uniformly curved, rounded and / or curved in these areas without this shape being impaired by kinks or folds.
  • the at least two fold lines or crease lines which serve for the flat folding of the packaging jacket and accordingly form the at least two folding edges of the packaging jacket, are preferably so-called "false folding lines” which later do not form an edge of the packaging or packaging. Folding along the false fold lines therefore only takes place to form the packaging jacket, but not in the packaging produced therefrom, which together with the filling can form the packaging.
  • These false fold lines - like conventional fold lines - should make it easier to fold the packaging jacket.
  • These fold lines are referred to as "false fold lines” because they are only used when the packaging jacket is folded flat, but are at least approximately straight folded again when the package body or the packaging to be filled is being unfolded.
  • Creases are linear material displacements that are stamped or rolled into the composite material using punching or pressing tools.
  • the two false fold lines are straight and parallel to each other.
  • the packaging jacket is folded along the at least two false fold lines, which thus form the folded edges.
  • fold lines can also be provided.
  • these are those which do not extend or only extend in a straight line over part of the longitudinal extent of the packaging jacket. These can form correspondingly shaped edges which, for example, make it easier to hold and grip the later pack. This also results in increased flexibility in the choice of the shape of the pack, without having to adhere to the known four preformed folding lines for unfolding the pack casing.
  • the packaging jacket is pulled or moved through a channel at least for partial unfolding, in particular for pre-folding before the subsequent complete unfolding, in such a way that the folded edges around which the packaging jacket previously has been folded flat, come into contact with the canal, in particular at the canal boundaries facing the middle of the canal.
  • the channel is preferably delimited in the transverse direction to the packing jacket by boundaries, for example in the form of sliding surfaces for sliding the packing jacket along.
  • the folded edges can then slide along the boundaries, for example in the form of sliding surfaces.
  • the channel tapers in the transport direction of the package jacket, which is preferably moved straight through the channel for the sake of simplicity, so that pressure is exerted on the folded edges of the package jacket in the direction of the center of the channel in the transverse direction of the package jacket.
  • the corresponding transverse extent of the packing jacket consequently decreases as the channel passes as the channel tapers.
  • the packing jacket is unfolded as far as the channel tapers.
  • the packaging jacket is at least partially unfolded or prefolded. If necessary or even preferred, the packaging jacket can then be unfolded, in particular entirely.
  • the packing jacket is positioned in the molding station between at least two mold halves of a mold.
  • the mold formed by the at least two mold halves is closed or at least when the at least two mold halves are moved towards one another, the packing jacket is unfolded.
  • closing the mold halves they press against the folded edges of the packaging jacket and thus cause the packaging jacket to be unfolded.
  • the channel can taper to such an extent that the packing jacket is completely unfolded therein, that is to say at least roughly the shape of the mandrel and / or has a suitable shape for being pulled onto the mandrel.
  • the frictional forces between the channel and the folded edges then become very high, which can lead to damage to the packing sleeves, be it mechanically or because of the increased temperature due to the friction.
  • the packaging sleeves must be included higher frictional forces are held tighter so as not to cause a malfunction, which cannot always be ensured or only with greater effort.
  • the use of a packaging jacket according to that of the applicant under the official file number DE 10 2016 003 826.8 , DE 10 2016 003 824.1 and DE 10 2016 003 829.2 filed patent applications preferred.
  • the packaging sleeves are folded flat by exactly two folded edges. This allows space-saving storage of the packaging sleeves in a stack.
  • the packaging sleeves then only have to be folded over two folded edges.
  • the two fold lines for forming the fold edges are preferably "false fold lines" of the type described, which therefore do not later form an edge of the packaging or pack. Folding along the false fold lines therefore only takes place in the case of the packaging, but not in the packaging or packaging produced therefrom.
  • fold lines can also be provided in this case.
  • these are again those which do not extend or only extend in a straight line over part of the longitudinal extent of the packaging jacket. These can form appropriately shaped edges, for example holding and Ease of grasping the later pack. This also results in increased flexibility in the choice of the shape of the pack, without having to adhere to the known four preformed folding lines for unfolding the pack casing.
  • the at least two folding edges, in particular the exactly two folding edges, of the packaging jacket, around which the packaging jacket has been folded flat are moved towards one another in the forming station, the free cross section of the packaging jacket increasing accordingly.
  • an at least partial unfolding of the packaging jacket can be achieved without requiring more than two folding edges or more than two pre-folded folding lines, as in the known packaging jackets.
  • four pre-folded folding lines are present, which simplify the unfolding of the packaging sleeve after it has been removed from the stack of packaging sleeves. These four pre-folded fold lines form the fold edges of the packaging jacket.
  • the present molding station makes such packaging sleeves unnecessary.
  • the folded edges can thus be moved toward one another while enlarging the free cross section of the pack or can be pressed inwards in relation to the associated pack jacket.
  • the packaging jacket preferably lies against the inside of the mold at least substantially all the way around, so that the packaging jacket acquires a defined shape.
  • the mold can in principle also be formed from several parts as the two mold halves, or the mold halves are formed from several parts if necessary. However, it is advisable for two parts to form the predominant part of the shape, particularly the large part.
  • the front of the packaging sleeve provided on the front of the stack of packaging sleeves can be gripped and moved forwardly away from the stack.
  • the front side is understood to be the side of the stack or of the packaging jacket pointing in the direction of transport. This takes into account the fact that the packaging sleeves in the stack are typically upright. However, it would also be conceivable, for example, that the flat-folded packaging sleeves lie on one another. The top of the stack would then be considered the front of the stack, as is understood. Accordingly, the upward-facing side of the upper packaging shell would also form the forwardly facing side of the front packaging shell. The alignment of the stack is therefore not essential in the present case.
  • Suction cups which can be mounted on a movable arm, can be used for this purpose in order to be able to grip the front of the front flat-folded packaging jacket easily and reliably.
  • the front of the packaging can be moved forward with the arm.
  • the packing jacket is pulled forward, whereby the packing jacket can be at least partially unfolded.
  • This allows the packaging sleeves to be handled simply and compactly.
  • a particularly simple and precise handling of the packaging sleeves is possible if the packaging sleeves are moved straight from the stack and are not guided along a curve or the like.
  • the at least partial unfolding or pre-folding of the packaging jacket can also be carried out subsequently, if necessary in a separate process step.
  • the packing jacket is preferably moved in a straight line through the channel.
  • the channel then tapers preferably transversely to this rectilinear movement.
  • the direction of movement is preferably aligned in the longitudinal direction of the channel.
  • Can in the transverse direction of the packaging jacket then pressure is applied to the folded edges of the packing jacket towards the center of the channel.
  • the corresponding transverse extent of the packaging jacket consequently decreases as it passes through the channel, as a result of which the packaging jacket is at least partially unfolded or prefolded in order to subsequently, in particular completely, be unfolded. It can therefore be preferred if the channel is designed as part of a pre-folding device, from which the packing sleeves can be passed on to a folding device for complete unfolding.
  • a simple and at the same time reliable, at least partial, unfolding of the packaging jacket is achieved if lateral boundaries of the channel, which can provide sliding surfaces for the packaging jacket, press against the at least two folded edges of the packaging jacket when the package jacket is pulled through that the folded edges of the packaging jacket move towards each other.
  • the channel thus enables a simple and at the same time defined, at least partial unfolding of the packaging jacket.
  • grooves can be provided on opposite sides of the channel, into which the folding lines of the packaging jacket in particular reach.
  • the grooves run at least substantially perpendicular to the direction of transport of the packing sleeves through the channel.
  • the channel is therefore preferably somewhat wider than immediately before and, if necessary, immediately afterwards.
  • the packing jacket folds back somewhat in the area of the grooves, but this creates a defined transfer position and position for the packing jackets.
  • the packing jacket can be moved out of the grooves, preferably in a targeted manner, in the longitudinal direction of the grooves.
  • the packing jacket can also be transported further along the grooves without the packing jacket leaving the grooves in order to be guided through the grooves in this way.
  • the packing jacket can also be transported further with the grooves. So it can also move the grooves, that is to say for example the regions of the channel or the boundaries of the channel forming the grooves, in the longitudinal direction of the grooves and take the packing jacket with them during this movement or transport them further. This takes place in particular in the direction of the unfolding device, in particular into the unfolding device. If necessary, the grooves of the channel or the regions of the channel forming the grooves form the parts of the unfolding device after the same parts have been moved.
  • the grooves can also extend from the channel of the pre-folding device into the shape of the unfolding device.
  • the grooves between the prefolding device and the unfolding device, in particular between the channel and the form should be interrupted.
  • the described manner of the packaging jacket can also be transferred from the pre-folding device to the unfolding device in a simple, reliable and defined manner to the forming station.
  • the packaging jacket can be moved through the forming station simply, expediently and without requiring a large amount of space, it is advisable for the packaging jacket to be moved in a first transport direction through the prefolding device and in a second transport direction to the folding device, in particular into the folding device, the first Transport direction and the second transport direction are at least substantially perpendicular to each other.
  • a further simplification and clarification of the movement is achieved if at least the first transport direction or at least the second transport direction is aligned in a straight line.
  • the straight first transport direction is particularly preferred if the pre-folding device has a channel and the packing jacket can then be moved through the channel in a straight line and thus very precisely.
  • the folded edges of the package jacket are spaced apart from at least one edge of the jacket a mandrel and / or at least one corner of the head of the mandrel are pushed onto the mandrel. It can therefore preferably be provided that no previous folding edge is provided on any of the edges of the mandrel, which preferably extend in the longitudinal direction of the mandrel. Rather, the folded edges are provided in between. In this way, edges of the packing sleeves can be provided with larger radii and it can be easily achieved that entire sides of the packing sleeves are arched and thus also formed on the mandrel. If necessary, however, one edge or a plurality of edges of the mandrel can also be provided, along which a folded edge of the packaging jacket is positioned. However, this preferably does not apply to all edges of the mandrel.
  • the mandrel each is at least one tenth, preferably at least one fifth, in particular at least one third of the distance between the edges of the mandrel adjoining on both sides of the folded edge.
  • Corner of the head of the mandrel transverse to the mandrel is in each case at least one tenth, preferably at least one fifth, in particular at least one third of the distance between the edges of the mandrel bordering on both sides of the folded edge.
  • the folded edges are far enough away from an edge region or corner region of the mandrel, for example to form packages with curvatures or curves that are to extend over a wide region of the jacket of the package.
  • the aforementioned distances preferably do not necessarily apply to each folded edge.
  • the folded edges of the packing sleeves can then be easily arranged, for example, on the side of the mandrel, in particular the jacket of the mandrel.
  • the sides of the mandrel can in particular be flat and / or curved outwards.
  • the folded edges are folded back accordingly until the portions of the packaging jacket adjoining the folded edges are arranged, for example, in one plane or form a constant curvature, for example an arc with a constant radius.
  • the grooves of the channel can also be used to reliably pass on the packaging sleeves to the unfolding device for finally unfolding the packaging sleeves.
  • a packing jacket with a feed device can be moved in the longitudinal direction of the grooves to the unfolding device.
  • the packaging sleeves are at least partially displaced in the grooves and / or with the grooves to the unfolding device.
  • the feed device can engage with at least one finger in a form-fitting manner on a longitudinal end of the packaging shell when the packaging shell is moved. This makes it easy and reliable to move the packing sleeves.
  • the at least one finger can thus engage on the longitudinal end of the packaging jacket pointing in the opposite direction of transport and push the packaging jacket in front of it in the direction of the unfolding device.
  • a linear movement of the at least one finger is required.
  • the at least one finger only has to be moved in a straight line back and forth or moved up and down.
  • the pack sleeves of the stack can be gripped very easily in the folded state by a gripper arm and pulled through the channel, which is particularly true for gripper arms with suction cups, since the gripper arm can then simply grip the forward-facing side of the folded pack sleeve. Regardless of this, a packing jacket is pulled through the channel, in particular up to the grooves, by the gripper arm. When the packing jacket has reached the grooves, separate the gripper arm preferably from the packing jacket, in particular automatically. This is also very easily possible when using suction cups, since air can then simply be passed into the suction cups by releasing the negative pressure.
  • the mold halves arranged in the closed position together with the packing jacket held between them can ultimately be pushed onto the mandrel. If the mold halves are then opened, i.e. moved apart, the packing shell remains on the mandrel and the mold halves can be used to unfold another packing shell.
  • the mold halves or the mold formed from the at least two mold halves can therefore be moved back and forth in at least two opposite directions.
  • the defined and thus very reliable transport of the packing sleeves from the channel to the at least two mold halves is used if the packing sleeves are received at least in sections by two groove elements during the transfer from the channel to the mold halves.
  • These groove elements can align with the grooves of the channel, but are otherwise separate from the grooves of the channel or the channel itself as separate elements. If necessary, the groove elements not only form the connection between the channel and the mold halves to bridge the distance through the packing sleeves.
  • the groove elements can also be moved towards each other when the mold halves are closed against a restoring force of at least one spring means. As a result, the groove elements can extend between the mold halves or into the groove. In other words, the groove elements can form parts of the mold halves at least in sections.
  • the groove elements hold the Packing jackets, for example, in the form or between the mold halves.
  • the restoring force can be used to reopen the mold, for example when the packing jacket has been transferred to the mandrel, so that only at least one drive has to be provided for closing the mold halves. In terms of equipment, this is also simpler in terms of control technology.
  • at least one pneumatic and / or hydraulically operated actuating cylinder can be provided, which, when appropriately controlled, can ensure that the mold is opened again. Large forces can simply be exerted on the mold to open it.
  • the mold can be opened and / or closed via an electromagnetic drive. This is easy to implement, but generally provides less forces for opening the mold.
  • the method described above can also be used as part of a method of making a filled package.
  • the opening remaining after the packing body has been filled can be closed at the corresponding longitudinal end of the packing body, which is done in particular by sealing the correspondingly folded longitudinal ends.
  • the at least two mold halves are preferably designed and matched to the packing sleeves such that the packing jacket comes into contact with the inside of the mold, which is formed by closing the at least two mold halves, at least substantially all around by closing the at least two mold halves or the mold becomes.
  • a shape of the packing jacket can be formed which does not have to have a rectangular or square cross section, but can nevertheless be easily and reliably pushed onto a mandrel, if necessary directly from the mold, if the packing jacket is at least partially pushed over the mandrel .
  • the packing jacket can also be pushed out of the mold and pushed onto the mandrel.
  • the forming station or the device can have a pre-folding device comprising the channel through which the packaging jacket is pulled and wherein the packaging jacket is partially unfolded or pre-folded before the packaging jacket is transferred into the mold.
  • the packaging jacket is guided through the channel, for example immediately after it has been removed from the stack of packaging jacket from the magazine of the device, at least up to a specific point on the channel.
  • a simple and reliable procedure is achieved, for example, if the packing sleeves are moved straight through the channel. A movement is therefore preferably provided which can be provided very simply and reliably.
  • the width of the channel tapers in the transport direction of the packing sleeves to a dimension that is less than the width of the flat-folded packing sleeves, in particular as they are received in the magazine.
  • the channel width may initially be wider than the width of the flat-folded packing sleeves, if necessary. This ensures that the packing sleeves can be reliably and reproducibly inserted into the channel in the transport direction of the packing sleeves. In the areas in which the channel is narrower than the flat folded packing sleeves, the channel presses against the packing sleeves, in particular against the folded edges of the packing sleeves or vice versa, so that the packing sleeves are partially unfolded.
  • the regions of the packing jacket adjoining the folded edges can be unfolded up to an angle of greater than 10 °, in particular greater than 20 °. Since the unfolding is followed by unfolding, for the sake of simplicity it may alternatively or additionally be preferred if the packing jacket is only unfolded around the folded edges up to a maximum of 70 °, a maximum of 55 ° or a maximum of 45 °.
  • the width of the Packing jacket in the pre-folding device can be reduced to a value of less than 95%, preferably less than 90%, in particular less than 85%, of the width of the flat-folded packaging jacket.
  • the channel can therefore have lateral boundaries which limit the transverse extent of the channel for the packing jacket.
  • the lateral boundaries come into contact with the folded edges of the packaging jacket.
  • the boundaries which sliding surfaces can form for sliding along the packing jacket press against the folded edges due to the tapering of the channel. This causes the folded edges to move increasingly towards one another during transport through the channel and accordingly at least partially unfold the packing jacket.
  • the boundaries of the channel are stationary, at least when the packing jacket is moved through. This reduces the number of moving parts, which improves the reliability of the pre-folding and reduces the outlay on equipment. As a result, a high processing speed can also be predetermined without hesitation, for example by means of a control device.
  • the pre-folding device described here can in principle also be designed as a unfolding device by means of which the packing sleeves are unfolded completely or at least to such an extent that the packing sleeves can be pushed directly onto the mandrel.
  • the canal generally narrows further than in the event that the canal is only used for prefolding.
  • the cross section of the packing jacket can then, if necessary, be at least substantially the same as the cross section of the jacket of the subsequent packing.
  • the packing jacket is unfolded up to a maximum of 200 °, preferably a maximum of 190 °, when unfolding around the folded edges.
  • the unfolding can in principle take place independently of the extent of the pre-folding of the packaging jacket.
  • the width of the packaging jacket in the unfolding device can be reduced to a value of less than 75%, preferably less than 70%, in particular less than 65%, of the width of the flat-folded packaging jacket.
  • the width is not reduced further than a value of less than 55%, preferably less than 55%, in particular less than 45%, of the width of the flat-folded packaging jacket.
  • Opposite grooves can be provided at one end of the channel for receiving the folded edges of the packing sleeves.
  • the end of the channel is not necessarily determined by its physical dimension, but can also be understood as the active part of the physical channel. According to this understanding, the channel extends as far as the packing sleeves are transported through the channel in the transport direction.
  • the groove provides a defined position for the passing on and the final unfolding of the packaging sleeves, whereby the packaging sleeves can be completely and easily unfolded.
  • a feed device for feeding the packing sleeves from the pre-folding device to the unfolding device in each case in the longitudinal direction of the grooves.
  • the feed device can have, for example, at least one movable and driven finger, which presses the packing sleeves out of the grooves along the grooves and / or in the longitudinal direction of the grooves, for example into the unfolding device, in particular into the form for unfolding the packing sleeves.
  • the grooves can also be moved together with the packing casing held between the grooves, even if this is not the case is required.
  • the packaging jacket can be handed over to a folding device.
  • the packing jacket can also be moved with the grooves in the unfolding device.
  • the pack can be shaped, the grooves then being able to move toward one another in a corresponding shape when the mold is closed, and thus unfolding the pack casing. This takes place in particular in that the grooves press against the folded edges which are received in the grooves.
  • the grooves approach each other, which consequently also applies to the folded edges.
  • a feed device has at least one finger that engages on a longitudinal end of the packaging jacket and pushes the packaging jacket positively toward the folding device, the packing jacket can be moved to the folding device simply, reliably and without damaging the packaging jacket.
  • a gripping arm preferably having suction cups
  • the packing jackets can simply be removed gradually from the stack. This is especially true when using suction cups, because then the free side of the packing sleeves can be gripped.
  • the packing sleeves are preferably moved from the gripping arm to the grooves, but not further. There, the gripping arm can detach itself from the packing jacket without stopping, in particular automatically, for example by releasing the negative pressure in the suction cups.
  • a transfer device can be provided for pushing the unfolded packaging jacket, which is held between the closed mold halves, onto a mandrel.
  • This transfer device can be designed to move the mold halves or the mold back and forth along a straight line. A more complex movement would be possible, but is not necessarily preferred for the sake of simplicity. If the mold is closed, the unfolded packing jacket preferably on the inside of the mold and the mold with the packing jacket can be pushed onto the mandrel. The mold can then be opened and moved away from the mandrel. The packing jacket remains on the mandrel.
  • Two separate groove elements adjoining the channel or the grooves can be provided for receiving the folded edges of the packing sleeves for transferring the packing sleeves from the channel to the mold halves. These groove elements then serve for the transfer from the channel to the unfolding device or to the at least two mold halves.
  • the groove elements can be in engagement with the mold halves at least in the closed position of the mold halves. The groove halves are thus pressed together when closing the groove, preferably against the restoring force of at least one spring means. This means that the packing sleeves do not have to be transferred from the groove elements to separate mold halves.
  • the force to close the mold halves only has to be released or reduced and the restoring force forces the mold halves back into a defined starting position without a separate drive being required for this.
  • the opening can preferably take place after the transfer of a packaging jacket to a mandrel, since the mold halves can then accommodate another packaging jacket between them.
  • the mold halves can also be connected to at least one pneumatic or hydraulic actuating cylinder, which pneumatically or hydraulically actuates the opening of the mold halves.
  • Electromotive drives for opening and closing the mold halves are also possible and also require less peripheral effort. Electromotive drives are also particularly hygienic compared to hydraulic drives better in the field of food processing. In this regard, combinations between electromotive and pneumatic drives are also conceivable.
  • a structurally simple transfer device which enables space-saving handling of the packaging jacket can first move the packaging jacket through the prefolding device in a first transport direction, which is particularly straightforward for the sake of simplicity, and then move the packaging jacket in a second transport direction oriented essentially perpendicular to the first transport direction in preferably even by moving the unfolding device. It has proven to be preferable if the transfer device has a gripper arm and a feed device.
  • the gripping arm is particularly suitable for transporting the packaging jacket through the pre-folding device, while the feed device, which preferably has at least one finger, is expedient for transporting from the pre-folding device into the unfolding device.
  • the gripper arm can easily grip one side of the packaging jacket, especially if the gripper arm has suction cups. With a finger or the like, one can simply press against an edge of the packaging jacket in order to push it forward, for example.
  • a longitudinal direction is referred to with regard to the packing jacket, the packing body or the packing
  • a direction is understood which is at least substantially parallel to the packing jacket, to the sealing seam of the packing jacket and / or to the jacket of the packing body or the packing.
  • the corresponding extent of the packing jacket, the packing body and the packing is typically larger than in a direction transverse to this direction.
  • the longitudinal direction is also understood in this case as the previously described direction, even if this may seem inaccurate for the individual case.
  • the head and the bottom of a pack are always on the Longitudinal ends of the package, which ultimately defines the longitudinal direction of the package of the package body and the package jacket.
  • Fig. 1A describes a blank 1 of a packaging material 2, as is known from the prior art.
  • the packaging material 2 is formed as a laminate from a plurality of material layers arranged one above the other. It is in particular a cardboard / plastic composite.
  • the packaging material 2 shown has two outer layers made of a thermoplastic, preferably polyethylene (PE), which enable the outer layers of the packaging material 2 to be sealed, ie welded. In between, a structuring cardboard layer is provided with a comparatively high bending stiffness for the packaging material 2.
  • at least one barrier layer can also be provided, which is preferably formed from aluminum, polyamide and / or an ethylene-vinyl alcohol. Additional layers are also conceivable.
  • the blank 1 is used to produce a packing jacket 3, which is formed by the outer and opposite longitudinal edges 4 of the blank 1 being bent over and connected to one another, in particular sealed to one another.
  • the blank 1 has a series of fold lines 5, 6, on which the blank 1 can be folded in order to form the desired package 7.
  • Most of the fold lines 5, 6 are provided on the upper edge 8 and the lower edge 9 of the blank 1, which are later folded to form the bottom and the head or gable of the pack 7.
  • the blank 1 has four essentially parallel fold lines 6, on which the blank 1 is pre-folded before the packaging jacket 3 is formed or after.
  • the packing jacket 3 is shown on top of one another after the sealing of the longitudinal edges 4 of the blank 1.
  • the corresponding sealing seam 10 is provided near one of the fold lines 6 of the packaging jacket 3 for optical reasons.
  • the packaging jacket 3 has folded edges 6 on its longitudinal edges, around which the packaging jacket 3 has been folded flat, so that the front section 11 and the rear section 12 of the packaging jacket 3 lie one on top of the other.
  • the packaging sleeves 3 can be easily stored in this way when folded flat.
  • the subsequent unfolding around the four pre-folded fold lines 6 is then still easily possible.
  • a packing jacket 3 with a rectangular cross section is then obtained.
  • the in the Fig. 2 Pack 7 shown can be obtained.
  • the four pre-folded fold lines 6 then form the edges of the pack 7 in the region of the casing 13 of the pack 7, just as the pre-folded fold lines 6 previously formed the edges of the pack casing 3.
  • the longitudinal ends 14, 15 of the package jacket 3 have been folded and sealed to form the bottom 16 of the package 7 and to form the head 17 of the package 7.
  • So-called packing ears 18 are formed on the head 17 of the pack, which are folded down and placed on the jacket 13 of the pack 7 and sealed or glued there.
  • the corresponding packing ears are folded inwards and are therefore no longer recognizable as such after the base 16 has been formed.
  • the illustrated and in this respect preferred device 20 has a number of parallel processing lines, of which in the Fig. 3 only one processing line 23 is shown.
  • Each processing line 23 is a magazine 22 with a stack 24. assigned a bundle of packaging sleeves 3 folded flat around two of the folding lines 6.
  • the packaging sleeves 3 have been formed from blanks 1 of a packaging material 2, the longitudinal edges 4 of which, as previously described are sealed together.
  • the packing sleeves 3 are unfolded by a feed device 25.
  • the packaging sleeves 3 are unfolded by pulling away a later side surface of the corresponding packaging sleeve 3 from the stack 24 without further action around the pre-folded folding lines 6, which form the edges of the packaging sleeve 3 and the later pack 7.
  • an application device could also be provided for applying spouts (not shown) to the packing sleeves 3.
  • the device 26 for forming the pack 7 has a mandrel wheel 27 which, in the illustrated and in this respect preferred case, comprises six mandrels 28 and rotates counterclockwise cyclically, that is to say step by step.
  • Devices of the type described are also known, in which the mandrel wheel has only four mandrels and / or four different mandrel wheel positions. The corresponding processing devices and the corresponding processing steps can then be provided appropriately compressed.
  • a packing jacket 3 is pushed onto the mandrel 28 in the first mandrel wheel position I. Subsequently, the mandrel wheel 27 is rotated further into the next mandrel wheel position II, in which the longitudinal end 15 of the packing jacket 3 protruding from the mandrel 28 is heated with hot air via a heating unit 29. In the next mandrel wheel position III, the heated longitudinal end 15 of the packing jacket 3 is pre-folded by a press 30 and in the subsequent mandrel wheel position IV in the folded position is sealed by a sealing device 31, in particular to form a base 16.
  • a packing body 21 which is closed on one side is obtained, which is removed from the mandrel 28 in the subsequent mandrel wheel position V and transferred to a cell 32 of an endless transport device 33 guided in a circle.
  • No working step is assigned to the mandrel 28 in the next mandrel wheel position VI.
  • the number of mandrel wheel positions or mandrels 28 and the processing steps provided there can, if necessary, be as shown in FIG Fig. 3 and the associated description.
  • at least one If necessary, a spout can be connected to the packaging material in a further mandrel wheel position.
  • the longitudinal end of the packing jacket closed on the mandrel wheel is preferably the head of the later packing. In the present case, whether the packing body is filled by the future head or by the future floor plays only a subordinate role.
  • the packing body 21 taken from the mandrel wheel is transported by the filling machine 34 with the open longitudinal end pointing upward in the associated cell 32, in particular a cell chain.
  • the package body then passes into an aseptic chamber 35, which comprises a sterilization zone 36 and a filling and sealing zone 37, through which the package bodies 21 are transported from left to right in the transport direction symbolized by the arrows.
  • the packing bodies 21 do not have to be transported in a straight line, but can also be carried out in at least one arc or even in a circle.
  • the packing bodies 21 are preheated in succession by a preheating device 39 by blowing with hot sterile air.
  • the packing bodies 21 are then sterilized by means of a sterilizing device 40, preferably using hydrogen peroxide, whereupon the packing bodies 21 are dried by exposure to sterile air via a drying device 41 and after the transition from the sterilization zone 36 into the filling and sealing zone 37 into a filling position 42 below one Filling spout 43 are brought.
  • There the packing bodies 21 are filled with food 44 one after the other.
  • the filled packing bodies 21 are then closed with a closing device 45 by folding the upper area of the packing body 21 and sealing.
  • the filled and sealed packs 7 are then removed from the cells 32 of the transport device 33.
  • the now empty cells 32 are moved further with the transport device 33 in the direction of the mandrel wheel 27 in order to accommodate further packing bodies 21 there.
  • FIG. 4A A further blank 50 of a packaging material 51 is shown, which basically corresponds to the blank 50 with regard to the packaging material 51, the blank 50 and the fold lines 52, 53, 54 Fig. 1A resembles.
  • the fold lines 52, 53, 54 in particular crease lines, are arranged and designed differently.
  • only two fold lines 52 are provided, which extend in a straight line in the longitudinal direction and over the entire longitudinal extent of the blank 50.
  • Two further fold lines 53 are divided into sections in the longitudinal direction of the blank 50 and there enclose a portion of the blank. In the corresponding area, the fold lines 53 run parallel to one another, but this is not mandatory.
  • the upper edge 55 and the lower edge 56 of the blank 50 are provided with fold lines 54.
  • the fold lines 54 of the lower edge 56 serve to form a bottom 57
  • the fold lines 54 of the upper edge 55 serve to form a head 58 of a package 59.
  • the blank 50 is sealed along the longitudinal edges 60 to form a sealing seam 61 to form a packing jacket 63, the front 64 and back 64 'of which in the 4B-C are shown.
  • the packaging jacket 63 is folded on the two fold lines 52 running in a straight line in the longitudinal direction of the packaging jacket 63, forming the folding edges 65, so that the front side 64 and the rear side 64 ′ of the packaging jacket 63 abut one another.
  • the pack 59 has a flat bottom 57, which is aligned perpendicular to the longitudinal extent of the pack 59.
  • the head 58 of the pack 59 is oriented obliquely to the longitudinal extent of the pack 59 and thus forms a pack gable 66.
  • the pack gable 66 has a larger front gable surface 67, which is larger than the smaller rear one arranged on the other side of the sealing seam 68 Gable surface 71. Sealing seam 68 and adjoining sections of head 58 form packing ears 69 on opposite sides of pack 59, which are folded down and are attached or sealed to jacket 70 of pack 59.
  • a larger opening section, a larger weakening and / or a large spout can be provided on the larger gable surface 67 if necessary.
  • a larger opening section a larger weakening and / or a large spout can be provided on the larger gable surface 67 if necessary.
  • neither an opening section nor a weakening or a spout is shown.
  • the pack 59 no continuous fold lines 52 or fold edges 65 are provided at the front longitudinal edges of the pack 59.
  • the folded edges 65 are not provided on any longitudinal edge of the pack 59 for folding the pack jacket 63 flat. Rather, the folded edges 65 are received in the areas between the longitudinal edges or longitudinal edges of the pack 59. In other words, the folded edges 65 of the pack casing 63 are folded back again and thus no longer form folded edges of the pack 59.
  • no fold lines 52, 53, 54 extending in a straight line in the longitudinal direction of the pack are provided on the rear edges of the casing 70 of the pack 59.
  • the fold lines 53 By dividing the fold lines 53, they do not run in a straight line over the entire longitudinal extent of the jacket 70 of the pack 59 and also at least in sections do not run along the edges of the jacket 70 of the pack 59, but in areas adjacent to them.
  • the device 80 for filling such packs 59 is shown.
  • the device 80 largely corresponds to that in FIG Fig. 3 Device 20 shown, so that essentially the differences in the Fig. 6 device 80 compared to that shown in FIG Fig. 3 shown device 20 are described to avoid unnecessary repetitions. For this reason, the same components are in the Fig. 3 and 6 marked with the same reference numerals.
  • the device shown could alternatively be a mandrel wheel with a different number of mandrels and / or a different number of mandrel wheel positions. In this context, it would be particularly preferred, for example, to provide a mandrel wheel with only four mandrels and / or only four mandrel wheel positions.
  • the device 20 shown also has a pre-folding device 82 for pre-folding the packaging sleeves 63 after removing the packaging sleeves 63 from the stack 81 of the packaging sleeves 63 and a folding device 83 for unfolding the packaging sleeves 63, which are removed from the stack 81 of packaging sleeves 63 of the magazine 22.
  • the pre-folding device 82 and the unfolding device 83 are combined in the illustrated and in this respect preferred device 80 to form a molding station 84 for molding the unfolded packaging jacket 63 to be transferred to the mandrel wheel 85.
  • only the pre-folding device 82 or only the unfolding device 83 could be provided. Only after passing through the forming station 84 are the packing sleeves 63 pushed onto the mandrels 86.
  • the mandrels 86 are also different from those in the Fig. 3 illustrated thorns 28 formed.
  • the mandrels 86 can namely be spread, that is to say adjusted from a narrower starting position to a wider pressing position, in the pressing position a pressing surface being provided by the mandrel 86, against which the corresponding longitudinal end 87 of the packing jacket 63 can be folded and pressed around the longitudinal end 87 to seal, in particular to seal liquid-tight.
  • packing bodies 88 are ultimately formed, which are delivered to the cells 32 of the transport device 33, here in the form of a cell chain.
  • the in the Fig. 6 shown device 80 compared to that in the Fig. 3 Device 20 shown after a sealing device 89 for sealing the sealing seam 68 of the packing gable 66, a gable pre-folding device 90 for pre-folding the packing gable 66 and a sealing device 91 for sealing the packing ears 69 to the jacket 70 of the packing 59 are provided.
  • a shaping device 92 is provided for the final shaping of the filled and closed pack 59.
  • This shaping device 92 gives the pack 59 its final shape.
  • the molding device 92 is shown in such a way that the packing 59 protrudes above and below the molding device 92.
  • the pack 59 is preferably received in the molding device 92 over its entire longitudinal extent.
  • FIG. 7 is schematically the molding station 84 of the in the Fig. 6 shown device 80 shown.
  • the forming station 84 uses the packing sleeves 63, which are held ready in a magazine 81 in a stack 81 of packing sleeves 63 folded around two folding lines 52 or folding edges 65.
  • the forming station 84 comprises a gripping arm 93 with suction cups 94, which grips the front side of the front flat-folded packing jacket 63 of the stack 81 and pulls the packing jacket 63 into and through a channel 95 of the pre-folding device 82.
  • the prefolding device 82 is shown in particular in the sectional view of the forming station 84 Fig. 8 shown.
  • the gripping arm 93 is shown in dashed lines as it grips a packing jacket 63 of the stack 81.
  • the gripping arm 93 then moves backwards in a straight line together with the packing jacket 63 and pulls the packing jacket 63 straight into a channel 95 which tapers transversely to the packing jacket 63.
  • the folded edges 65 around which the packing jacket 63 has been folded flat, come into contact with the boundaries 96 of the channel 95.
  • the folding edges 65 ultimately press from the inside against the channel 95, which in turn unfolds the packing jacket 63 somewhat, and the more, the further the packing jacket 63 is pulled or transported through the channel 95.
  • grooves 97 are provided in the longitudinal direction of the folded edges 65 on both sides of the channel 95, into which the packing jacket 63 engages with the folded edges 65 in the corresponding position.
  • the suction cups 94 and thus the gripper arm 93 then detach from the packing jacket 63.
  • the packing jacket 63 remains in the channel 95, held in the grooves 97.
  • FIG. 9A the mold 9 is shown by way of example with two mold halves 100, 101 in an open position. In this position, the pre-folded packing jacket 63 is taken over by the form 99, for which purpose grooves 102 are also provided in the shown and preferred form 99, in which the folded edges 65 of the packing jacket 63 engage.
  • the mold 99 is closed and reaches the in the Figure 9B closed position shown as an example.
  • the packing jacket 63 is unfolded and at least essentially bears against the inner contour 103 of the mold 99. In this way, the packing jacket 63 can be brought at least approximately into the later shape of the packing 59.
  • contours of a different shape can also be provided if necessary, depending on the form in which the packs are to be produced. In the Fig.
  • the molding station 84 is shown in detail, which in the Fig. 7 for the sake of clarity, it has only been shown schematically.
  • a stack 81 of packing sleeves 63 is stored in the magazine 22. This is also the case in detail 11A-B shown.
  • a slider 110 is provided behind the stack 81, which pushes the stack 81 against stops 111 on both sides of the stack 81 in order to exactly position the respective front packing jacket 63.
  • the slider 110 is pressed against the back of the stack 81 by the restoring force of a spring means, even when the length of the stack 81 decreases.
  • the spring means can also be dispensed with or replaced by other devices.
  • the front of the respective front packaging jacket 63 can be gripped by a gripping arm 93.
  • the gripping arm 93 shown and preferred in this respect has suction cups 94 which are at the front of the respective front packing jacket 63 are created.
  • the suction cups 94 are thereby closed and can be at least partially evacuated to form a vacuum. Since the packing sleeves 63 are held on the suction cups 94 in this way, the packing sleeves 63 can be pulled forward from the stack 81. The packing sleeves 63 are pulled past the stops 111.
  • the illustrated and preferred gripping arm 93 moves in a straight line away from the stack 81 and through a channel 95.
  • the gripper arm 93 is held on a carriage 113.
  • the carriage 113 is displaceable along guides 114 and held on the guides 114, which are rod-shaped.
  • the carriage 113 is moved back and forth via a rotating motor drive 115, which is coupled to the carriage 113 via a lever mechanism 116, the rotation of the drive 115 being converted into a linear movement of the carriage 113 back and forth.
  • the illustrated and in this respect preferred channel 95 is formed by two channel elements 117 laterally delimiting the channel 95.
  • the gripper arm 93 can be moved between the channel elements 117.
  • the channel elements 117 form a channel 95 tapering away from the stack 81, in the rear area of which, viewed from the stack 81 of the packing sleeves 63, a groove 97 is provided, which is essentially parallel to the folding edges 65 of the packing sleeves 63 in the stack 81 and extends in the vertical direction.
  • the grooves 97 also extend all the way to the lower edge of the channel elements 117 and thus of the channel 95.
  • the channel elements 117 form the boundaries 96 of the channel 95, which is formed between the channel elements 117.
  • the channel elements 117 provide sliding surfaces 118 pointing inward into the channel 95.
  • the folded edges 65 of the packing sleeves 63 slide on the sliding surfaces 118 until the packing sleeves 63 with the folding edges 65 engage in the grooves 97 of the channel elements 117.
  • the gripper arm 93 then detaches itself from the packing sleeves 63 because the negative pressure in the suction cups 94 is then automatically released.
  • the width of the channel 95 is somewhat wider than that at the end facing the stack 81 of packing sleeves 63 Packing sleeves 63 themselves. Further in channel 95, the folding edges 65 press against the sliding surfaces 118, which is equivalent to pressing the sliding surfaces 118 against the folding edges 65 of the packing sleeve 63. The folded edges 65 are thus pressed towards one another and the packing jacket 63 is partially unfolded.
  • pre-folding This is also referred to as pre-folding the packing sleeves 63.
  • the pre-folding is defined and reproducible.
  • the part of the installation comprising the channel 95 can therefore be referred to as the prefolding device 82.
  • a feed device 98 of the forming station 84 is shown, the task of which is to forward the packing sleeves 63 held in the grooves 97 of the channel 95 downward to a folding device 83, in which the packing sleeves 63 are then completely unfolded.
  • the feed device 98 is held on a traverse 119, which is held on lateral vertical guides 121 via carriages 120 and can be moved up and down in the vertical direction.
  • the slides 120 have rollers 123 which can roll on the side guides 121, which are rod-shaped.
  • the feed device 98 also has two fingers 124 which are arranged in an upper position above the channel 95 or at least above the packing sleeves 63 drawn through the channel 95 and held in the grooves 97.
  • the feed device 98 can be moved up and down in a controlled manner via a belt drive 125, which is motor-driven via a drive 126.
  • the belt 127 is placed as a closed belt 127 around two deflection rollers 128, of which one deflection roller can be driven in opposite directions via the motor drive 126 as required.
  • the feed device 98 moves or the fingers 124 move downwards.
  • the fingers 124 grip from above against the upper longitudinal end of the packing jacket 63 and press the packing jacket 63 down along the grooves 97.
  • the fingers 124 then move up again and a further packing jacket 63 is drawn through the channel 95 into the grooves 97.
  • the packing jacket 63 is removed from the channel 97 in particular by leaving the channel 97 13A-B groove elements 129 shown are included, which at least directly follow the channel 95 in the illustrated and in this respect preferred molding station 84, even if the groove elements 129 are separate elements.
  • the groove elements 129 provide grooves 130 that are aligned with the grooves 97 of the channel 95.
  • the packing jacket 63 is guided with its folded edges 65 further into the grooves 130 in the groove elements 129.
  • the groove elements 129 also extend downward into the two mold halves 100, 101 of the unfolding device 83 in the device shown and preferred in this respect.
  • the mold halves 100, 101 are initially arranged with the groove elements 129 in an open position, in which a packing jacket 63 along the grooves 97, 130 by means of the Feeder 98 is pushed down from the channel 95 between the mold halves 100,101.
  • the mold halves 100, 101 are closed, the groove elements 129 with the mold halves 100, 101 being moved toward one another.
  • the grooves 130 of the groove elements 129 press against the folded edges 65 of the packaging jacket 63, which is unfolded in this way and in the process bears against the inner contour of the mold 99 formed by the mold halves 100, 101.
  • the groove elements 129 are, as is particularly the case in FIG Fig. 14 is shown, pressed together against the restoring force of two spring elements 131 provided between the groove elements 129. This ensures that the groove elements 129 are moved apart again into the starting position when the mold 99 is opened or when the mold halves are moved apart.
  • the unfolding device is shown in horizontal sections from above.
  • the mold halves are 100, 101 or the mold 99 is in the open position.
  • Two actuating cylinders 132 are provided one above the other, each of which has a plunger 133 which is displaceable in the actuating cylinder 132 and which is connected via a rod 134 to a mold half 100, 101.
  • the actuating cylinders 132 are designed so that they pneumatically or hydraulically each associated mold half 100,101 can move to the closed position.
  • the mold halves 100, 101 get into the in the 15C shown closed position with the unfolded packing jacket 63 in between, which bears against the inner contour of the mold 99 formed from the mold halves 100, 101.
  • the mold halves 100, 101 are held together with the actuating cylinders 132 on a cross member 135, which can be moved vertically up and down by means of carriages 136 on the lateral guides 121. In this way, the mold 99 or the mold halves 100, 101 can be moved downwards in the closed position and upwards in the open position.
  • the slides 136 run up and down on rollers 137 on the rod-shaped guides 121.
  • the traverse 135 is driven by a belt drive 138, which is driven by a motor drive 139.
  • the belt 140 as a closed belt 140, is wrapped around two deflection rollers 141, of which a deflection roller 141 can be driven in opposite directions via the motor drive 139 as required.
  • the corresponding unit can be understood as a transfer device 144.
  • the lateral guides 121, the belt drives 125, 138 and the motor drives 126, 139 are held and mounted on a common frame 142. Furthermore, a cross member 143 holding the groove elements 129 is fixed in place in the common frame 142. The groove elements 129 can thus be moved together and apart again but not moved up and down. The groove elements 129 therefore retain their position when the mold 99 is moved downward.
  • the packing jacket 63 unfolded therein is pushed onto the mandrel 86 of the mandrel wheel 85 arranged underneath.
  • the mold 99 can then be opened, which can take place through the restoring force of the spring means 131 arranged between the groove elements 129 instead of via the actuating cylinder 132. However, this is not necessary.
  • the mold halves 100, 101 are moved upward via the cross member 135 in order to add another Packing jacket 63 to fold open.
  • the groove elements 129 are not adjusted vertically, the groove elements 129 can, if necessary, already take up a new packing jacket 63 after opening the mold 99, while the mold 99 is again moved into its upper position in order to pick up and unfold the packing jacket 63 in this position.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Cartons (AREA)
  • Closing Of Containers (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Packages (AREA)
  • Package Closures (AREA)
EP17709081.8A 2016-04-04 2017-03-07 Verfahren und vorrichtung zum bilden von einseitig offenen packungskörpern aus beidseitig offenen packungsmänteln Active EP3439970B1 (de)

Applications Claiming Priority (3)

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DE102016106139 2016-04-04
DE102016109996.1A DE102016109996A1 (de) 2016-04-04 2016-05-31 Verfahren und Vorrichtung zum Bilden von einseitig offenen Packungskörpern aus beidseitig offenen Packungsmänteln
PCT/EP2017/055301 WO2017174280A1 (de) 2016-04-04 2017-03-07 Verfahren und vorrichtung zum bilden von einseitig offenen packungskörpern aus beidseitig offenen packungsmänteln

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EP3439970A1 EP3439970A1 (de) 2019-02-13
EP3439970B1 true EP3439970B1 (de) 2020-06-24

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EP17709081.8A Active EP3439970B1 (de) 2016-04-04 2017-03-07 Verfahren und vorrichtung zum bilden von einseitig offenen packungskörpern aus beidseitig offenen packungsmänteln
EP17711151.5A Active EP3439964B1 (de) 2016-04-04 2017-03-16 Vorrichtung und verfahren zum formen der giebelflächen von verpackungen mit schrägem giebel
EP17712073.0A Active EP3439972B1 (de) 2016-04-04 2017-03-16 Vorrichtung zum einseitigen verschliessen von packungsmänteln für die herstellung von verbundpackungen
EP17712477.3A Active EP3439974B1 (de) 2016-04-04 2017-03-21 Vorrichtung zum formen von geschlossenen verpackungen
EP19190904.3A Withdrawn EP3581507A1 (de) 2016-04-04 2017-03-21 Verfahren zum formen von geschlossenen verpackungen
EP17716150.2A Active EP3439971B1 (de) 2016-04-04 2017-04-03 Verfahren und vorrichtung zum bilden von einseitig offenen packungskörpern aus beidseitig offenen packungsmänteln

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EP17711151.5A Active EP3439964B1 (de) 2016-04-04 2017-03-16 Vorrichtung und verfahren zum formen der giebelflächen von verpackungen mit schrägem giebel
EP17712073.0A Active EP3439972B1 (de) 2016-04-04 2017-03-16 Vorrichtung zum einseitigen verschliessen von packungsmänteln für die herstellung von verbundpackungen
EP17712477.3A Active EP3439974B1 (de) 2016-04-04 2017-03-21 Vorrichtung zum formen von geschlossenen verpackungen
EP19190904.3A Withdrawn EP3581507A1 (de) 2016-04-04 2017-03-21 Verfahren zum formen von geschlossenen verpackungen
EP17716150.2A Active EP3439971B1 (de) 2016-04-04 2017-04-03 Verfahren und vorrichtung zum bilden von einseitig offenen packungskörpern aus beidseitig offenen packungsmänteln

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EP (6) EP3439970B1 (zh)
JP (4) JP2019510705A (zh)
CN (5) CN109153467A (zh)
DE (5) DE102016109980A1 (zh)
ES (4) ES2792086T3 (zh)
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DE102016109980A1 (de) 2017-10-05
WO2017174497A1 (de) 2017-10-12
US20190055045A1 (en) 2019-02-21
WO2017174280A1 (de) 2017-10-12
DE102016109980A9 (de) 2018-04-26
EP3439974A1 (de) 2019-02-13
PL3439974T3 (pl) 2020-10-19
CN109311548A (zh) 2019-02-05
ES2792086T3 (es) 2020-11-10
CN108883845B (zh) 2020-07-28
DE102016109996A1 (de) 2017-10-05
EP3439971A1 (de) 2019-02-13
EP3439964A1 (de) 2019-02-13
US11745903B2 (en) 2023-09-05
JP2019513649A (ja) 2019-05-30
US10926896B2 (en) 2021-02-23
JP6921110B2 (ja) 2021-08-18
CN108883845A (zh) 2018-11-23
US11203448B2 (en) 2021-12-21
WO2017174318A1 (de) 2017-10-12
EP3439972B1 (de) 2020-04-29
EP3439964B1 (de) 2020-06-03
EP3439970A1 (de) 2019-02-13
PL3439972T3 (pl) 2020-07-13
WO2017174347A1 (de) 2017-10-12
DE102016109995A1 (de) 2017-10-05
EP3439974B1 (de) 2020-05-06
ES2793015T3 (es) 2020-11-12
DE102016109979A9 (de) 2018-04-26
CN108883850B (zh) 2021-02-05
US20190152628A1 (en) 2019-05-23
JP2019513636A (ja) 2019-05-30
JP2019510699A (ja) 2019-04-18
WO2017174321A1 (de) 2017-10-12
EP3581507A1 (de) 2019-12-18
CN109153467A (zh) 2019-01-04
ES2802449T3 (es) 2021-01-19
EP3439971B1 (de) 2020-06-10
JP2019510705A (ja) 2019-04-18
PL3439964T3 (pl) 2020-08-24
JP6864737B2 (ja) 2021-04-28
CN108883847B (zh) 2020-11-10
ES2803375T3 (es) 2021-01-26
PL3439971T3 (pl) 2020-09-21
US20190112090A1 (en) 2019-04-18
DE102016110008A1 (de) 2017-10-05
US20190112081A1 (en) 2019-04-18
EP3439972A1 (de) 2019-02-13
JP6899843B2 (ja) 2021-07-07
DE102016109979A1 (de) 2017-10-05
CN108883850A (zh) 2018-11-23
CN108883847A (zh) 2018-11-23
US20190112082A1 (en) 2019-04-18
CN109311548B (zh) 2021-07-30

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