WO2020151934A1 - Procédé et dispositif de pliage au moins partiel d'enveloppes d'emballage pliées à plat - Google Patents

Procédé et dispositif de pliage au moins partiel d'enveloppes d'emballage pliées à plat Download PDF

Info

Publication number
WO2020151934A1
WO2020151934A1 PCT/EP2020/050144 EP2020050144W WO2020151934A1 WO 2020151934 A1 WO2020151934 A1 WO 2020151934A1 EP 2020050144 W EP2020050144 W EP 2020050144W WO 2020151934 A1 WO2020151934 A1 WO 2020151934A1
Authority
WO
WIPO (PCT)
Prior art keywords
gripper
folded
packing
flat
folding
Prior art date
Application number
PCT/EP2020/050144
Other languages
German (de)
English (en)
Inventor
Christoph Schroeder
Frank Ott
Original Assignee
Sig Technology Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sig Technology Ag filed Critical Sig Technology Ag
Publication of WO2020151934A1 publication Critical patent/WO2020151934A1/fr

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Classifications

    • 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
    • B31B50/80—Pneumatically
    • 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
    • B31B50/02—Feeding or positioning sheets, blanks or webs
    • B31B50/04—Feeding sheets or blanks
    • B31B50/06—Feeding sheets or blanks from stacks
    • B31B50/062—Feeding sheets or blanks from stacks from the underside of a magazine
    • 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
    • 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
    • B31B2110/00—Shape of rigid or semi-rigid containers
    • B31B2110/30—Shape of rigid or semi-rigid containers having a polygonal cross section
    • B31B2110/35—Shape of rigid or semi-rigid containers having a polygonal cross section rectangular, e.g. square
    • 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
    • B31B2120/00—Construction of rigid or semi-rigid containers
    • B31B2120/30—Construction of rigid or semi-rigid containers collapsible; temporarily collapsed during manufacturing
    • B31B2120/302—Construction of rigid or semi-rigid containers collapsible; temporarily collapsed during manufacturing collapsible into a flat condition
    • 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
    • B65B55/027—Packaging in aseptic chambers
    • 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

Definitions

  • the invention relates to a method for at least partially unfolding flat-folded packaging sleeves, the packaging sleeves being two in
  • the invention relates to a device for at least partially unfolding flat-folded packaging sleeves, preferably according to one of claims 1 to 10, with a magazine comprising a stack of packs consisting of two folded edges of flat-folded packaging sleeves each extending in the longitudinal direction of the packaging sleeves and with a take-over gripper for gripping each front packing jacket of the pack stack on the front of the flat-folded packing jacket between the two folded edges and for moving away the gripped
  • Methods and devices for forming packaging bodies that are open on one side from packaging shells that are open on both sides have been known for some time. These methods and devices usually serve as a first sub-step in the production of filled packs, and processes and devices for filling packs with products in different configurations are also known. Appropriate devices are usually so-called filling machines. Which are supplied with flat-folded packaging sleeves and the product to be filled.
  • the packaging sleeves are made in particular from laminates of packaging material, in particular by sealing the longitudinal edges of the packaging material
  • the inner longitudinal edge can follow outside to prevent moisture from penetrating into the packaging laminate, especially the box.
  • packaging sleeves are made from a packaging laminate that are open at the opposite longitudinal ends.
  • the packing sleeves are usually along along four
  • Pack can be easily and reliably formed when molding the package body open on one side. First, however, the packaging sleeves are folded flat around two opposite folding edges. Two of the pre-folded bending lines are folded back. The other two bending lines form the folded edges. The packing jacket then essentially forms two in parallel
  • the front section of the packaging jacket at the front end of the stack i.e. the front of the flat-folded packaging jacket, becomes one of suction cups
  • Packaging laminate can be easily folded or folded along the, in particular pre-folded, bending lines.
  • the correspondingly unfolded packing jacket is then pulled onto a mandrel of a so-called mandrel wheel, the
  • Cross section of the mandrel corresponds to the cross section of the packing jacket.
  • Packing jacket initially protrudes outwards with a longitudinal end over the mandrel, so that the projecting part of the packing jacket can be folded against the end face of the mandrel and pressed and sealed there.
  • the corresponding The longitudinal end of the packaging jacket is closed and regularly forms the bottom of the later filled package.
  • the closed end of the pack casing could also form the head of the later pack, for example if it is filled through the open bottom.
  • the packing body is filled through the open longitudinal end of the one-sided packing body.
  • cardboard composite packaging understood, which are at least partially formed from a packaging laminate in the form of a laminate comprising a cardboard layer and outer, in particular thermoplastic, plastic layers, such as polyethylene (PE).
  • the carton gives the packs sufficient stability so that the packs can be handled easily and, for example, stacked.
  • the plastic layers protect the cardboard from moisture and the food from the absorption of unwanted substances from the pack.
  • further layers such as an aluminum layer, can be provided which prevent diffusion of oxygen and other gases through the packaging laminate.
  • Corresponding packing bodies are typically filled with products in the form of foodstuffs, in particular beverages, the products which are predominantly flowable products being considered.
  • 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 packing 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 laminates, this is done
  • the packaging bodies which are open on one side, are placed in a sterilization zone
  • Transport device to be handed over.
  • 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.
  • the package bodies are preheated with hot sterile air and then sterilized, typically with hydrogen peroxide, and dried with sterile air.
  • the sterile packing bodies are transferred to the filling and sealing zone and filled there. Then the opening is filled
  • Transport device is transported from the filling and sealing zone and 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.
  • Filling machines are also called cross-country skiers.
  • the so-called rotary machines the packing bodies describe a more or less arc-shaped movement, which can include one or more circular arc sections.
  • the present invention basically relates to both types of filling machines.
  • the present invention is based on the object, the method and the device of the type mentioned above and explained in more detail above to develop and further develop that a more reliable but still quick unfolding of flat-folded packing sleeves can be ensured to form packing bodies that are open on one side.
  • This object is achieved according to claim 1 by a method for at least partially unfolding flat-folded packing sleeves, the packing sleeves being folded flat around two folding edges extending in the longitudinal direction of the packing sleeves,
  • Packing sleeves are gripped by a folding gripper on the other side between the two folding edges,
  • a transport device for moving, in particular in a straight line, the flat-folded packaging sleeves gripped by the take-over gripper into a folded position relative to a folding gripper is provided in that the folding gripper for gripping the rear side of the flat-folded packaging sleeves in the folded position is provided between the two folding edges of the flat-folded packaging sleeves and that a folding device for adjusting the folding gripper and the take-over gripper against one another is provided in such a way that the flat-folded packaging sleeves are unfolded and that the folding gripper and the take-over gripper after unfolding the flat-folded Attack packing sleeves on adjacent or opposite sides of the unfolded packing sleeves.
  • the invention has thus recognized that at least a separate folding gripper can contribute to the fact that the flat-folded packaging sleeves can be unfolded reliably and yet quickly in order to do justice to the high throughput of conventional filling machines.
  • the packaging sleeves which are folded flat around two longitudinally extending folding edges, are first gripped from one side between the folding edges by a take-over gripper.
  • the flat-folded packaging sleeves are adopted in such a way that they can be reproducibly unfolded in quick succession.
  • the length of the unfolded pack sleeves between the two, in particular open, ends of the unfolded pack sheath or the length of the filled and closed packs between the upper and the lower end is generally greater than the width in a direction perpendicular thereto. Therefore, in the present case, the longitudinal direction of a packing jacket is preferably the
  • the longitudinal direction can also be the direction between the two open ends of the packaging jacket
  • the longitudinal direction is in particular parallel to at least one side of the packaging jacket or the packaging. In many cases the longitudinal direction is unfolded by the corresponding dimensions
  • Packing jackets are moved by the take-over gripper into a folded position, in which the packing jackets are then also from the other side between one of the two folding edges around which the packing jackets have been folded flat
  • Folding grippers are gripped.
  • the packaging sleeves are preferably held further by the take-over gripper, even if this is not absolutely necessary.
  • the take-over gripper grasps the flat-folded packaging sleeves and only releases the packaging sleeves after they have been unfolded, in order to ensure reliable unfolding. It can then be avoided that the packaging sleeves are misaligned when
  • Unfold packing sleeves Alternatively, a plurality of
  • Takeover grippers and / or folding grippers can be used. Furthermore, in the present case, preferably the connection of the take-over gripper and / or the folding gripper to the packing sleeves, that is to say the contacting of the take-over gripper and / or the folding gripper, is referred to as gripping. The once seized
  • Packing sleeves are then considered to be gripped or held by the corresponding gripper if necessary.
  • the gripping is not to be understood too narrowly here if necessary.
  • the at least one take-over gripper and / or folding gripper can have, for example, at least one suction cup, in particular a row of suction cups, which comes into contact with an outer side of the packaging sleeves and in which such a suppression can be pulled that the packaging casing is prevented from accidentally slipping or Disconnect from the take-over gripper or folding gripper secured by the at least one suction cup.
  • the initially flat-folded packing jacket is unfolded.
  • the shape of the unfolded packing jacket should be taken into account.
  • the unfolded packaging sheath regularly becomes, at least in sections, an at least substantially rectangular one
  • the outer sides of the unfolded packaging sleeves which are initially arranged parallel to one another, can be pivoted against one another by at least substantially 90 ° when unfolded.
  • the pivoting of the outer sides of the unfolded packaging sleeves can in principle be done beforehand
  • the take-over gripper remains stationary when the packing sleeves are unfolded, while the folding gripper understands, in particular swivels, relative to the take-over gripper. So can
  • the take-over gripper can be used to take over and fix and to transport the packaging sleeves into a folded position. In the folded position, the folding gripper can then grip the packing sleeves. This is preferably accompanied by a movement of the folding gripper relative to the packing jacket. The unfolding can therefore also be done by understanding the folding gripper. This applies
  • the folding gripper can be adjusted in one direction to grip the packing sleeves and at least partially understood in the opposite direction to unfold the packing sleeves.
  • the folding gripper and the take-over gripper grip the unfolded packaging sleeves in such a way that after the flat-folded packaging sleeves have been unfolded they engage on adjacent or opposite sides of the unfolded packaging sleeves. This is particularly useful for unfolded packaging sleeves with a rectangular cross-section, which then have four separate ones when unfolded
  • the device for at least partially unfolding flat-folded
  • Packing sleeves are preferably designed so that they unfold the
  • the device In order to be able to hold the flat-folded packaging sleeves ready for the take-over gripper, the device has a magazine in which the flat-folded ones
  • Pack sleeves are included in the form of a pack stack.
  • the packing sleeves are each folded flat from two folding edges extending in the longitudinal direction of the packing sleeves.
  • Packing jacket of the pack stack can be at least one
  • the front of the packaging jacket is limited by the head end and the bottom end and by the laterally arranged folding edges.
  • a pack stack is preferably understood to mean a series of pack sleeves which are aligned parallel to one another and abut one another.
  • the pack sleeves of the pack stack are preferably further aligned with their edges.
  • stacks can have an at least substantially vertical stacking direction. However, this is not necessary for the pack stacks.
  • the flat-folded packaging sleeves are arranged at least essentially one behind the other in the stack of packages in the horizontal direction.
  • a stack of packs is referred to here for the sake of clarity.
  • Packing jackets are brought about by a transport device, which preferably causes the grabbed packing jackets to be moved straight away from the pack stack.
  • a transport device By means of the at least one take-over gripper and the transport device, the flat-folded packaging jacket removed from the pack stack is brought into a folded position, which is arranged in a predetermined manner relative to the folding gripper.
  • the at least one folding gripper and the folding position are provided so that the folding gripper is able to hold the back of the
  • a folding device for adjusting the folding gripper and the take-over gripper against one another is provided in such a way that the flat-folded packaging sleeves are unfolded.
  • the take-over gripper can remain stationary and only the folding gripper can be moved, as has already been described above.
  • the folding device is further designed such that the folding gripper and the take-over gripper after the flat-folded packaging sleeves have been unfolded on adjacent or opposite one another Attack the sides of the unfolded packaging sleeves to create a defined and
  • the fold edges that extend around two longitudinally extending packaging sleeves are folded flat
  • Packing casings held in a row in a pack stack This supports the defined and reliable unfolding of the packaging sleeves.
  • the take-over gripper it is advisable for the take-over gripper to grip the front, flat-folded packing jacket of the pack stack. Since, in addition, the front side of the front, flat-folded packaging jacket, which points away from the pack stack, is easily accessible for the take-over gripper, it makes sense for the take-over gripper to grip this front side of the front, flat-folded packaging jacket.
  • the takeover gripper is preferably used for that of the takeover gripper
  • the packing sleeves can expediently move from the at least one a folding gripper can be grasped, particularly reproducibly, when the flat-folded packing sleeves are in the folded position.
  • the flat-folded packaging sleeves can be positioned particularly reliably and reproducibly for unfolding, in particular in the folded position, if the take-over gripper pulls the gripped flat-folded packaging sleeves, in particular when moving away from the stack of packs, against at least one take-over stop, on which the flat-folded packaging jacket is then positioned at least briefly in a fixed position .
  • the packing sheath can be gripped reliably by the folding gripper and unfolded as such.
  • the folding gripper pulls the packing jacket against at least one folding stop in the at least partially unfolded state, in particular as a result of the unfolding of the packing jacket. This makes the unfolding very reproducible and the shape of the unfolded packaging sleeve is clearly defined.
  • the packing sleeves can be moved away from the stack of packs very simply and reliably if the take-over gripper attacks the packing jacket before folding and if necessary also during this time between two areas of the packing jacket resting against take-over stops.
  • the specific definition of the shape of the unfolded packing sleeves is very simple and reliable if the folding gripper engages the packing sleeve between two areas of the packing sleeves lying against folding stops.
  • the at least one take-over stop can also serve to unfold, in addition to the positioning of the flat-folded packaging sleeves, for example in the folded position. This can expediently be achieved if the at least one take-over stop or at least one take-over stop on the one hand and the take-over gripper on the other hand are adjusted in such a way that the flat-folded ones
  • Packing sleeves are unfolded.
  • adjusting the take-over stop relative to the take-over gripper supports the unfolding of the Packing jackets by adjusting the folding gripper relative to the take-over gripper.
  • the support of the unfolding of the packaging sleeves by at least one
  • the take-over stop can be adjusted from a stop position resting on the flat-folded packaging jacket to a shape position resting on the unfolded packaging jacket and back. Then the take-over stop can support the unfolding of the packaging jacket from the flat-folded starting position to the unfolded end position.
  • the folding gripper does not grip one of the flat-folded packing sleeves
  • Packing jackets can be moved unhindered by the pick-up gripper away from the pack stack by the folding gripper.
  • the folding gripper can grip one of the flat-folded packaging sleeves
  • Unfolded position can be adjusted. If necessary, this can enable the takeover gripper to remain stationary during this time. Regardless of this, however, a reliable unfolding of the packaging sleeves is favored.
  • the non-use position can be adjusted to the use position in order to grip the back of the flat-folded packaging jacket and then to be adjusted back to the non-use position or the unfolding position while the initially folded flat packaging jacket is unfolded.
  • the adjustment to the use position can then take place again and so on.
  • the folding gripper can move in sections to the unfolded position when moving from the non-use position to the use position and / or from the use position to the non-use position.
  • the adjustment of the folding gripper from the use position to the unfolding position into the non-use position then does not serve, for example, to unfold the packaging sheath further, but rather that the folding gripper does not hinder the gripping and transporting of the next flat-folded packaging sheath away from the stack of packs.
  • the folding gripper can more preferably move from the unfolded position
  • Packing jacket can be solved so that the further understanding of the unfolded position in the non-use position to no further deformation of the already
  • Unfolding the packaging sleeves becomes particularly reliable and reproducible if the folding gripper and the at least one take-over stop are understood parallel to one another, in particular at least essentially in the same time interval, from the use position to the unfolded position or from the stop position to the shaped position. This is how the folding gripper and the
  • the unfolded packing sleeves can then be closed on one side in order to obtain the packing bodies which are open on one side and thus obtained, it is advisable for the unfolded packing sleeves to be delivered one after the other, preferably in a longitudinal direction of the packing sleeves, to a mandrel wheel, particularly to the mandrels of the mandrel wheel be postponed.
  • the mandrel wheel can be shaped and fired on one side of the packaging sleeves, which are open on both sides, in a manner known per se.
  • the packing bodies preferably form containers such as, for example
  • Cardboard composite packaging which is at least partially formed from a packaging laminate in the form of a laminate comprising a cardboard layer and outer, in particular thermoplastic, plastic layers, for example made of polyethylene (PE).
  • the carton gives the packs sufficient stability so that the packs can be handled easily and, for example, stacked.
  • Plastic layers protect the cardboard from moisture and the food from the inclusion of unwanted substances from the package.
  • further layers such as an aluminum layer, can be provided, the one
  • the flat-folded packaging sleeves are therefore preferably already formed from such a packaging material laminate.
  • at least one take-over stop can be used to abut the flat-folded and from the
  • Packing sleeves seized over the gripper can be provided. In this way, the flat-folded packaging sleeves can be kept in a defined position for takeover by the takeover gripper. This ultimately increases the
  • At least one take-over stop is provided on the opposite sides of the take-over gripper that grips the flat-folded pack sleeves for engaging the flat-folded pack sleeves and gripped by the take-over gripper. This way, the flat-folded packaging sleeves can be reliably supported on opposite edges and still be easily supported by at least one
  • At least one folding stop can be provided for engaging the unfolded packaging sleeves which are gripped by the folding gripper.
  • the shape of the unfolded packaging jacket can be ensured and the at least one folding stop can reliably unfold the
  • At least one folding stop is provided for engaging the unfolded packing shells and gripped by the folding gripper. This also ensures that the folding gripper can reliably grip the packing sleeves and help to unfold the packing sleeves.
  • the folding device can be provided to adjust the at least one take-over stop or at least one take-over stop on the one hand and the take-over gripper on the other hand. So at least one
  • take over stop support the unfolding of the packing sleeves.
  • the at least one takeover stop adjusts and the takeover gripper remains stationary in the meantime and holds the packing jacket there if necessary.
  • Both the take-over gripper and at least one take-over stop can also be understood if this offers advantages for the reliable unfolding of the packaging sleeves, even if this is regularly higher
  • the flat-folded packing sleeves can in any case be unfolded by the relative adjustment of the take-over stop and take-over gripper, whereby it is possible to unfold the packing sleeves in a defined manner if the take-over stop and the take-over gripper after
  • the folding device for adjusting the folding gripper from one that does not grip the flat-folded packing sleeves
  • the folding gripper can then be understood in a targeted manner in a position of use in order to grip the packaging sleeves at a suitable point, in particular after the take-over gripper has moved the packaging sleeves away from a stack. If the folding gripper has been understood in the non-use position, the folding gripper cannot interfere with the further handling of the packing sleeves. In other words, the folding gripper is limited to unfolding the packing sleeves.
  • the folding device can also be designed to adjust the folding gripper from a use position gripping the flat-folded packaging sleeves to a folding position gripping the unfolded packaging sleeves.
  • the adjustment from the use position to the unfolded position then brings about or supports the unfolding of the packing sleeves.
  • the folding gripper holds the Packing coats during understanding from the use position to the
  • the non-use position and the unfolded position of the folding gripper are at least essentially identical. If the unfolded position corresponds at least substantially to the non-use position, the outlay in terms of apparatus and process technology can be reduced. This applies in particular if the folding gripper in the non-use position does not impair the further handling of the packing sleeves. To ensure this, the folding gripper can go quite a bit further from the unfolded position
  • the folding device can then be designed in such a way that the folding gripper reaches the unfolding position in sections when moving from the non-use position to the use position and / or back.
  • the folding gripper and the at least one transfer stop can support the unfolding of the packaging sleeves. This is particularly the case when the folding gripper and the at least one
  • the folding device can be designed for the independent adjustment of the folding gripper and the take-over stop from the non-use position into the use position or from the shape position into the stop position. It can be further preferred if the folding gripper and the
  • a packaging jacket to be unfolded can first be brought into contact with the take-over stop, in particular in the folded position, in order then to be gripped by the folding gripper in a defined manner.
  • the flat-folded packing sleeves can be kept ready in a very defined manner if the magazine has trigger stops on which each other
  • FIG. 1A-B a blank of a packaging material laminate and a packing jacket formed from the blank from the prior art, each in a top view
  • FIG. 2 shows a perspective view of a prior art package formed from the package jacket according to FIG. 1B
  • Fig. 3 shows an apparatus for producing the pack of FIG. 2 from a
  • the packaging material laminate 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 illustrated
  • Packaging laminate 2 has two outer layers made of a thermoplastic
  • Plastic preferably polyethylene (PE), which seal, i.e. welding, the outer layers of the packaging laminate 2 enable.
  • a structuring cardboard layer is provided with a comparatively high bending stiffness for the packaging laminate 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 bent to each other and connected to each other, in particular sealed to each other.
  • the blank 1 has a series of bending lines 5, on which the blank 1 can be bent or folded or folded to form the desired package 7.
  • the bending lines 5, which if necessary also as
  • the Creasing lines can be formed, simplify the shaping of the And also ensure reliable folding.
  • Most of the bending lines 5 are provided on the upper edge 8 and on 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 bending lines 5, on which the blank 1 is formed before the
  • Packaging material laminate 2 at the same point has only a slight resistance
  • FIG. 1B shows the packaging jacket 3 after the longitudinal edges 4 of the blank 1 have been sealed onto one another and after the subsequent packaging of the packaging jacket 3 thus formed.
  • the corresponding sealing seam 10 is provided near one of the two folded edges 6, along which the packing jacket 3 is folded flat.
  • the two folding edges 6 correspond to two of the four parallel bending lines in the longitudinal direction of the packaging jacket 3.
  • the packaging jacket 3 shown has consequently been folded flat along the folding edges 6 in such a way that the front section or the front side 11 of the flat-folded packaging jacket 3 and the rear section or the back 12 of the packaging jacket 3
  • 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 pack 7 shown in FIG. 2 can be obtained using the corresponding flat-folded packing jacket 3.
  • the four parallel bending lines 5 in the longitudinal direction of the package jacket 3, including the two folding edges 6 in the region of the jacket 13 of the package 7, then form the edges of the package 7 like the pre-folded folding lines 6 previously the edges of the
  • Packing jacket 3 have formed.
  • the longitudinal ends 14, 15 of the packaging jacket 3 are folded to form the bottom 16 of the package 7 and to form the head 17 of the package 7 and sealed.
  • 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.
  • 3 is a device 20 for unfolding flat-folded
  • the device 20 comprises a magazine 22 for holding pack sleeves 3 and a device for forming
  • the illustrated and in this respect preferred device 20 has a series of parallel processing lines, of which only one processing line 23 is shown in FIG. 3.
  • a magazine 22 with a pack stack 24 or a bundle of pack sleeves 3 folded flat around two folded edges 6 is assigned to each processing line 23.
  • the packaging sleeves 3 have been formed as previously described from blanks 1 of a packaging laminate 2, the longitudinal edges 4 of which are sealed to one another.
  • a device 25 for unfolding the pack sleeves 3, the pack sleeves 3, which are initially folded flat, are removed from the pack stack 24 of the magazine 22 and unfolded.
  • the unfolded packing sleeves 3 are transferred to a device 26 for shaping the packing body 21, which has a mandrel wheel 27 which in the illustrated and in this respect preferred case comprises six mandrels 28 by way of example and rotates counterclockwise cyclically, that is to say step by step.
  • a mandrel wheel 27 which in the illustrated and in this respect preferred case comprises six mandrels 28 by way of example and rotates counterclockwise cyclically, that is to say step by step.
  • a packing jacket 3 is pushed onto the mandrel 28.
  • 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 relative to the mandrel 28 also has a heating unit 29 Hot air is heated.
  • the heated longitudinal end 15 of the packing jacket 3 is pre-folded by a press 30 and in the following mandrel wheel position IV in the folded position by a
  • Sealing device 31 tightly sealed, in particular to a bottom 16, sealed.
  • a packing body 21 which is closed on one side is obtained, which in the subsequent mandrel wheel position V is removed from the mandrel 28 and, for example, 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 may, if necessary, differ from the illustration in FIG. 3 and the associated description.
  • a spout can be connected to the packaging laminate in at least one additional mandrel wheel position as required.
  • 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 with the open longitudinal end pointing upward in the associated cell 32, in particular a cell chain, by a filling machine 34.
  • the packing body gets into one
  • Aseptic chamber 35 which comprises a sterilization zone 36 and a filling and sealing zone 37, through which the packing 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 by means of a sterilizing device 40, preferably by means of Hydrogen peroxide, sterilized, 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, are brought into a filling position 42 below a filling outlet 43. There the packing bodies 21 are filled with food 44 one after the other.
  • Packing bodies 21 are then closed with a closing device 45 by folding the upper region of the packing body 21 and sealing.
  • the filled and sealed packs 7 are then from the cells 32 of the
  • Removed 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.
  • 4A is the device 25 for unfolding flat-folded
  • the device 25 for unfolding flat-folded packaging sleeves 3 comprises a take-over gripper 50 for gripping the respective front, flat-folded packaging sleeve 3 and for moving away the gripped front packaging sleeve 3 of the pack stack 24 of flat-folded packaging sleeves 3 in the magazine 22. For gripping the
  • the illustrated and preferred take-over gripper 50 has five suction cups 51. Another number of suction cups 51 would also be conceivable. A vacuum can be pulled on the suction cups 51 when the suction cups 51 rest with their openings on a flat-folded packing jacket 3.
  • the take-over gripper 50 is held adjustably by means of a transport device, not shown.
  • Transport device comprises a motor for driving the motor
  • Transport device of the take-over gripper 50 The transport device is included formed such that the take-over gripper 50 is withdrawn from a
  • the takeover position the
  • FIGS. 10 and 11 A possible embodiment of the transport device for moving the take-over gripper 50 from the take-over position into the holding position is shown in FIGS. 10 and 11
  • a folding gripper 52 is provided in the illustrated and in this respect preferred device 25 for unfolding the flat-folded packing sleeves 3.
  • the illustrated and preferred folding gripper 52 has three suction cups 53. Another number of suction cups 53 would also be conceivable. A vacuum can be pulled on the suction cups 53 when the suction cups 53 rest with their openings on a flat-folded packing jacket 3.
  • the folding gripper 52 is driven by a folding device 54 and can thus be adjusted from a non-use position into a use position and back. When the folding gripper 52 is moved from the non-use position into the use position, the folding gripper 52 reaches the unfolding position in sections, just as when moving in the opposite direction.
  • the folding gripper 52 grips the flat-folded packaging jacket 3 held by the take-over gripper 50 in the retracted holding position.
  • the folding gripper 52 supports the unfolding of the flat-folded packaging jacket 3.
  • the folding gripper 52 becomes the non-use position adjusted to take over the next flat-folded package jacket 3 from the pack stack 24 and to transport the taken-over package jacket 3 into the folded position in each case not hindered by the takeover gripper 50. Then the
  • Folding gripper 52 is again adjusted from the non-use position via the unfolded position to the use position in order to grip and unfold the next flat-folded packaging jacket 3 there.
  • the folding device 54 comprises a folding gripper pivot axis 55 which is connected on the one hand to the folding gripper 52 and on the other hand to a folding gripper pivot drive 56.
  • the folding gripper swivel drive 56 comprises a motor 57 for driving the folding gripper 52, a rotatable output lever 58 of the motor, a pivot lever 59 of the pivot axis and a coupling lever 60 connecting the output lever 58 and the pivot lever 59. In this way, a rotary movement of the motor 57 can be converted into a pivoting movement of the folding gripper 52 about the folding gripper pivot axis 55.
  • three take-over stops 61, 62, 63 are provided, at which the flat-folded packing sleeves 3 come into a defined system in the folded position, with the two opposite edges 64 of the Front 11 of the flat-folded packing sleeves 3 adjacent to the two folded edges 6 and with a section in between.
  • the three take-over stops 61-63 in the illustrated and in this respect preferred device 25 for unfolding the pack sleeves 3 remain in contact with the corresponding edges 64 of the pack sleeves 3.
  • one of the three take-over stops 63 is moved from one to the flat-folded one
  • Device 25 for unfolding flat-folded packaging sleeves 3 includes the folding device 54 for this purpose a stop pivot axis 65, which is connected on the one hand to the transfer stop 63 and on the other hand to a stop pivot drive 66.
  • the stop swivel drive 66 comprises a motor 67 for driving the take-over stop 63, a rotatable output lever 68 of the motor 67, a swivel lever 69 of the swivel axis and one
  • a single motor could also be provided.
  • a servo motor can be used as the motor, which has a more precise monitoring and
  • 5A-E is the device 25 for unfolding the flat-folded
  • Pack stack 24 is aligned.
  • the take-over gripper 50 is shown in the retracted holding position. In this position, the take-over gripper 50 holds the still flat-folded packaging jacket 3 in a folded position in which the packaging jacket 3 is attached to the
  • Takeover stops 61-63 is present.
  • Each of the two opposite edges 64, which are assigned to the folded edges 6, is assigned a take-over stop 61, 63 which holds the respective edge 64 of the packaging jacket 3 in position.
  • a further take-over stop 62 is provided between the two outer take-over stops 61, 63, against which the flat-folded packing jacket 3 rests in the folded position.
  • the folding gripper 52 is still in the lateral non-use position, in which the folding gripper 52 does not hinder the transport of the flat-folded packing jacket 3 from the pack stack 24 of the packing jackets 3 in magazine 22 to the folded position. Subsequently, however, the folding gripper 52 is driven by the folding device 54 from the non-use position into the use position.
  • the folding gripper 52 is pivoted about the folding gripper pivot axis 55 with the aid of the folding gripper pivot drive 56.
  • the motor 57 for driving the folding gripper 52 by motor moves the connected output lever 58 to the outside and thus pulls the coupling lever 60 in the same direction. This means that the Coupling lever 60 connected pivot lever 59 and the folding gripper pivot axis 55 connected to the pivot lever 59 are pivoted such that the folding gripper 52 comes into the use position.
  • the folding gripper 52 is shown in the use position, in which the folding gripper 52 grips the packaging jacket 3, which is still folded flat.
  • the folding gripper 52 engages on the previous rear side 12 of the packaging jacket 3, which points away from the take-over gripper 50.
  • the folding gripper 52 is now moved back, namely to the unfolded position in which the previously folded flat jacket 3 is unfolded.
  • the take-over stop 63 facing away from the folding gripper 52 is moved from the stop position shown in FIG. 5C to the shaped position.
  • the folding gripper pivot drive 56 is pivoted in the opposite direction about the folding gripper pivot axis 55.
  • the motor 57 for driving the folding gripper 52 adjusts the folding gripper 52
  • Output lever 58 for this purpose back inward and thus pulls the coupling lever 60 in the same direction.
  • the pivot lever 59 and the folding gripper pivot axis 55 connected to it are pivoted back in such a way that the folding gripper 52 returns to the unfolding position.
  • the transfer stop 63 is also adjusted by means of the folding device 54.
  • this has a motor 67 for driving the transfer stop 63, which has an output lever 68.
  • the output lever 68 is moved inwards by the motor, so that the coupling lever 70 is also displaced in this direction.
  • the pivot lever 59 provided on the coupling lever 70 then pivots the transfer stop 63 articulated on the pivot lever 59 about the stop pivot axis 65 from the stop position into the shaped position.
  • the folding device 54 arrives in the position shown in FIG. 5D, in which the packing jacket 3 is unfolded and both on the three
  • Takeover stops 61-63 and also on two folding stops 73, 74 and on a folding stop 75 There is one, swiveling Take-over stop 63 is now in the shape position and in the illustrated and in this respect preferred device 25 for unfolding packing sleeves 3 is firmly connected to the unfolding stop 75.
  • the take-over stop 63 and the associated unfolding stop 75 now lie on opposite sides of an edge 76 of the unfolded packaging jacket 3, the edge 76 being formed by a folded edge 6 of the flat-folded packaging jacket 3.
  • the middle take-over stop 62 lies adjacent to a further edge 77 of the unfolded packaging jacket 3, which is formed by a beige line 78 which has not previously been bent.
  • the outer, non-swiveling take-over stop 61 and an adjacent folding stop 73 lie on opposite sides of another edge 79 or another
  • the further folding stop 74 lies adjacent to an edge 80 which is formed by a bending line 81 which has not previously been bent.
  • Packing sleeves 3 in the folded position according to FIG. 5B in which the packing sleeves 3 are to come into contact with the take-over stop 63, collides undesirably with the unfolding stop 75, the unfolding stop 75 together with the take-over stop 63 can, if necessary, be somewhat compared to the one in the FIG. 5B position rotated counterclockwise. If this is the case, it can further be provided that the unfolding stop 75 is then pivoted back together with the take-over stop 63, if necessary, in the opposite direction. 5D, in which the unfolding stop 75, if necessary, is positioned together with the take-over stop 63 in such a way that the unfolded packaging jacket 3 lies against both the unfoldable stop 75 and the take-over stop 63.
  • the unfolded packaging jacket 3 is now in the longitudinal direction of the

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)

Abstract

L'invention concerne un procédé de pliage au moins partiel d'enveloppes d'emballage (3) pliées à plat. À cet effet, le procédé comprend les étapes consistant à : plier à plat les enveloppes d'emballage (3) autour de deux bords de pliage (6) s'étendant dans le sens de la longueur des enveloppes d'emballage (3); saisir les enveloppes d'emballage (3) pliées à plat les unes après les autres par un préhenseur de transfert (50) sur un côté situé entre les deux bords de pliage (6); saisir les enveloppes d'emballage (3), pliées à plat et saisies par le préhenseur de transfert (50), de l'autre côté entre les deux bords de pliage (6) par un préhenseur de pliage (52); déplacer le préhenseur de pliage (52) et le préhenseur de transfert (50) l'un par rapport à l'autre de telle manière que les enveloppes d'emballage (3) pliées à plat sont pliées et que le préhenseur de pliage (52) et le préhenseur de transfert (50), après le pliage des enveloppes d'emballage (3) pliées à plat, viennent en prise sur les côtés adjacents ou opposés l'un à l'autre des enveloppes d'emballage (3) pliées à plat.
PCT/EP2020/050144 2019-01-25 2020-01-06 Procédé et dispositif de pliage au moins partiel d'enveloppes d'emballage pliées à plat WO2020151934A1 (fr)

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DE102019101816.1A DE102019101816A1 (de) 2019-01-25 2019-01-25 Verfahren und Vorrichtung zum wenigstens teilweisen Auffalten von flachgefalteten Packungsmänteln
DE102019101816.1 2019-01-25

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DE102022115881A1 (de) 2022-06-27 2023-12-28 Sig Combibloc Services Ag Verfahren und vorrichtung zum bilden von einseitig offenen packungskörpern aus beidseitig ofenen packungsmänteln

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EP2094479A1 (fr) * 2006-10-20 2009-09-02 Sidel Participations Machine de façonnage d'ebauches de caisses en carton
WO2013053646A1 (fr) 2011-10-10 2013-04-18 Elopak Systems Ag Machine de remplissage permettant de remplir des contenants d'emballage avec des produits et procédé associé
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US2289820A (en) * 1940-03-14 1942-07-14 Standard Knapp Corp Machine for opening shipping cases from the flat
US3293998A (en) * 1963-10-21 1966-12-27 Superior Packaging Equipment C Container opening device and method of opening a knock-down container
US3273471A (en) * 1964-01-21 1966-09-20 Owens Illinois Glass Co Apparatus for setting up folded cartons
DE1957761A1 (de) * 1968-11-21 1970-05-27 Winters John Donald Vorrichtung zum Aufrichten oder Auffalten von flachen,rohrfoermigen Kartons od.dgl.
DE2060780A1 (de) * 1969-12-15 1971-07-08 Cons Paper Bahamas Ltd Vorrichtung zum Verpacken von Guetern in Kartons
DE2143498A1 (de) * 1971-08-31 1973-03-08 Holstein & Kappert Maschf Vorrichtung zum entnehmen einzelner kartonzuschnitte aus einem stapel und zum aufgeben der aus den zuschnitten aufgerichteten kartonhuelsen auf einen foerderer
DE2246769A1 (de) * 1972-09-23 1974-03-28 Benz & Hilgers Gmbh Vorrichtung zum entnehmen und aufrichten von in einem stapel flach zusammengelegten kartonhuelsen
US4348853A (en) * 1980-08-08 1982-09-14 Morse Hugh B Case opening and sealing apparatus
DE3429761A1 (de) * 1984-08-13 1986-02-27 Focke & Co (GmbH & Co), 2810 Verden Vorrichtung zum aufrichten von faltkartons
US5411464A (en) * 1993-11-16 1995-05-02 The Mead Corporation Machine for erecting cartons having collapsible bottoms
US5613828A (en) * 1994-07-19 1997-03-25 Thomas J. Lipton Co., Division Of Conopco, Inc. Handling partly completed containers
EP1190842A2 (fr) * 2000-09-26 2002-03-27 Illinois Tool Works Inc. Machine pour former des caisses
DE60303240T2 (de) * 2002-06-13 2006-08-03 G.D Società per Azioni Verfahren und Vorrichtung zum Verpacken eines Produkts unter Verwendung einer flachen rohrförmigen Verpackung
DE60303818T2 (de) * 2002-08-05 2006-09-14 G.D. Società per Azioni Verfahren und maschine zur verpackung eines produkts in einer flachen röhrenförmigen verpackung
DE60204469T2 (de) * 2002-11-15 2006-05-18 Romaco S.R.L., Rastignano Vorrichtung zum Aufnehmen und Aufrichten von Kartonzuschnitten
EP1428759A2 (fr) * 2002-12-09 2004-06-16 Focke & Co. (GmbH & Co.) Procédé et dispositif pour enlever d'un magasin des boítes empilées aplaties et pour redresser les boítes
WO2006019319A1 (fr) * 2004-08-18 2006-02-23 Automac Engineering Limited Appareil et procede d’ouverture de formulaires
US20060211558A1 (en) * 2005-03-21 2006-09-21 Flagg Michael F Carton Feeder with Extended Carton Hold Down Member and Carton Guide
US20080312058A1 (en) * 2006-02-20 2008-12-18 Marchesini Group S.P.A. Method and an Apparatus For Picking Up Flat Folded Tubular Blanks From a Magazine and for Moving Them to an Erecting Station
EP2094479A1 (fr) * 2006-10-20 2009-09-02 Sidel Participations Machine de façonnage d'ebauches de caisses en carton
WO2013053646A1 (fr) 2011-10-10 2013-04-18 Elopak Systems Ag Machine de remplissage permettant de remplir des contenants d'emballage avec des produits et procédé associé
US20180272643A1 (en) * 2012-04-24 2018-09-27 H. J. Paul Langen Method and apparatus for forming containers
DE102016109996A1 (de) 2016-04-04 2017-10-05 Sig Technology Ag Verfahren und Vorrichtung zum Bilden von einseitig offenen Packungskörpern aus beidseitig offenen Packungsmänteln

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