WO2020216564A1 - Procédé et dispositif de dépliage au moins partiel d'enveloppes d'emballage pliées à plat - Google Patents

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

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Publication number
WO2020216564A1
WO2020216564A1 PCT/EP2020/058361 EP2020058361W WO2020216564A1 WO 2020216564 A1 WO2020216564 A1 WO 2020216564A1 EP 2020058361 W EP2020058361 W EP 2020058361W WO 2020216564 A1 WO2020216564 A1 WO 2020216564A1
Authority
WO
WIPO (PCT)
Prior art keywords
pack
folded
jackets
jacket
receptacles
Prior art date
Application number
PCT/EP2020/058361
Other languages
German (de)
English (en)
Inventor
Christoph Schroeder
Frank Ott
Thomas HOSE
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 WO2020216564A1 publication Critical patent/WO2020216564A1/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
    • B31B50/78—Mechanically
    • 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
    • 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
    • B65B43/16—Feeding individual bags or carton blanks from piles or magazines by grippers
    • B65B43/18—Feeding individual bags or carton blanks from piles or magazines by grippers by suction-operated grippers
    • B65B43/185—Feeding individual bags or carton blanks from piles or magazines by grippers by suction-operated grippers specially adapted for 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
    • 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
    • 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
    • B31B50/066—Feeding sheets or blanks from stacks from above a magazine
    • 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
    • B31B50/07—Feeding sheets or blanks by air pressure or suction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • 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

Definitions

  • the invention relates to a method for at least partially unfolding flat-folded packaging sleeves, the packaging sleeves extending by two
  • the invention also relates to a device for at least partially unfolding flat-folded pack sleeves with a magazine comprising a pack stack of two each extending in the longitudinal direction of the pack jackets
  • Transport track in grooves of recordings located in a starting position.
  • the packaging jackets are in particular cut from packaging laminate blanks
  • Packing material laminate cuts on top of each other.
  • the inner longitudinal edge can be folded outwards in order to prevent moisture from penetrating into the packaging material laminate, in particular the cardboard box.
  • the packing coats are usually along four lengthways to the
  • the package jacket is pre-folded along the bending lines, so that the later edges of the typically form a square or rectangular cross-section
  • Pack can be easily and reliably formed when forming the pack body open on one side. First, however, the pack sleeves are folded flat around two opposite folding edges. Two of the pre-folded bending lines are then folded back again. The other two bending lines form the folding edges. The packing jacket then essentially forms two parallel
  • the front section of the package jacket at the front end of the stack that is to say the front of the flat-folded package jacket, becomes one of suction cups
  • Packaging laminate can be easily creased or folded along the, in particular before folded, bending lines.
  • the correspondingly unfolded pack 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.
  • the package jacket initially protrudes outward with one longitudinal end over the mandrel, so that the protruding part of the pack jacket can be folded against the end face of the mandrel and there it can be pressed and sealed.
  • the corresponding longitudinal end of the package jacket is thus closed and regularly forms the bottom of the later filled package.
  • the sealed end of the package jacket but could alternatively also form the top of the later pack if this is filled, for example, through the open bottom.
  • Packing body is filled independently of this through the open longitudinal end of the one-sided packing body.
  • DE 10 2016 109 995 A1 describes a filling machine with a device for unfolding packaging sleeves that are folded flat around two folding edges extending in the longitudinal direction of the packaging sleeves, as well as a corresponding method for unfolding those that are folded flat
  • the flat-folded pack jackets are pulled one after the other by a transfer gripper through a channel that tapers in the direction of transport of the flat-folded pack jackets, and at the end of the channel they enter grooves that are spaced a little less than the distance between the two opposite ones Folded edges of the flat-folded pack sleeves.
  • the pack jackets are picked up already slightly unfolded and then passed on in the longitudinal direction of the pack jackets between two mold halves of a mold for unfolding the pack jackets.
  • the pack jackets are completely unfolded by closing the mold containing the two mold halves.
  • Packing bodies in this context are containers such as
  • cardboard composite packaging is understood, which are at least partially formed from a packaging material 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 cardboard gives the packs sufficient stability so that the packs can be easily handled and, for example, stacked.
  • the plastic layers protect the carton from moisture and the food from absorbing unwanted substances from the pack.
  • packaging bodies are typically filled with products in the form of food, in particular beverages, whereby predominantly flowable products come into question as 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 packing has been filled.
  • the filling machines have, for example, sterilization rooms or aseptic chambers in which the pack bodies are sterilized and then filled and sealed under the most sterile conditions possible. After the packing bodies have been filled, they are typically closed in the filling machine. This is done when using appropriate packaging material laminates
  • the packaging bodies which are open on one side, are placed in a sterilization zone of the
  • Transport device are handed over.
  • the transport device then ensures that the packs are transported through the sterilization zone of the filling machine at a defined speed at a defined distance from one another.
  • the packs are preheated with hot sterile air and then, typically with hydrogen peroxide, sterilized and dried with sterile air.
  • the sterile packaging bodies are transferred to the filling and sealing zone and filled there. Then the opening of the filled
  • Transport device transported from the filling and sealing zone and then removed from the corresponding cells of the transport device.
  • the package bodies are transported in a straight line through the filling machine by the transport device.
  • Filling machines are also referred to as long-running machines.
  • the so-called rotary machines the packing bodies describe a more or less one arc-shaped movement that can comprise one or more circular arc segments.
  • the present invention basically relates to both types of filling machines.
  • the present invention is based on the object of designing and developing the method and the device of the type mentioned at the outset and explained in more detail above in such a way that a more reliable but nevertheless rapid unfolding of flat-folded packaging casings to form packaging bodies open on one side can be ensured without this requires excessive expenditure on equipment or procedures.
  • This object is achieved according to claim 1 by a method for at least partially unfolding flat-folded packaging sleeves, the packaging sleeves being folded flat around two folding edges extending in the longitudinal direction of the packaging sleeves,
  • the opposing receptacles in particular at the same time, are each pivoted from the starting position into a folded position in which the respective pack jacket is held unfolded with the folded edges in the grooves of the receptacles, in which the unfolded packaging jackets are delivered to a forming station and
  • the flat-folded pack sleeves are first gripped by a transfer gripper on their free sides and transferred.
  • Transfer gripper transports the flat-folded package jacket in one
  • Trigger transport direction along a trigger transport path in the direction of grooves of separate recordings In the direction of grooves of separate recordings.
  • the packing shells get with the folded edges into the grooves which are opposite one another and whose openings each point at least essentially in the direction of the other groove.
  • the grooves are preferably arranged so close to one another that the folding edges press against the respective groove base and thus fold the pack jacket slightly.
  • the spacing between the groove bottoms of the grooves can therefore be somewhat smaller than the width of the flat-folded packaging casings from fold edge to fold edge. This ensures that the packing shells are in the grooves or
  • the transfer gripper can be separated from the pack sleeves when the
  • the receptacles lying opposite one another are pivoted from the starting position in which the pack jacket is only slightly unfolded into the folded position.
  • the grooves, which continue to hold the pack jacket are pivoted in a corresponding manner.
  • the folded position of the receptacles is selected such that the respective pack jacket is at least substantially completely unfolded between the receptacles. Nevertheless, in this state, the pack jacket is still held more or less with the folded edges in the grooves of the receptacles. It should also be taken into account here that the pack jacket in the unfolded state exerts a certain restoring force back in the direction of the flat-folded position of the pack jacket, which force presses the unfolded pack jacket against the receptacles.
  • one end of the pack jacket can be closed in the forming station in order to form a pack bottom or a pack head.
  • the use of a mandrel wheel can be useful for this purpose.
  • the packing body closed on one side can then be
  • the package jacket is pivoted back to the starting position at the forming station.
  • the process described above can then be carried out again.
  • the corresponding process is therefore repeated many times and carried out in quick succession.
  • the process can be carried out in a very confined space. It can also be operated very stably, so that very short cycle times can be achieved.
  • the method described above can be carried out, for which purpose the flat-folded pack jackets are initially arranged one behind the other in a pack stack and are thus received in a magazine.
  • the pack jackets are stacked perpendicular to one another and provided with folding edges arranged parallel to one another in alignment with one another.
  • the front side of the respective foremost pack jacket then always points forward in the direction of a transfer gripper for gripping the corresponding one
  • the front side extends between the two folding edges of the corresponding package jacket arranged laterally in the magazine.
  • the transfer gripper moves the gripped pack jacket from the pack stack along a withdrawal transport path, which is preferably in a straight line
  • the package jacket enters the grooves of the receptacles provided opposite one another.
  • the grooves and the recordings are in the starting position. If the distance between the grooves is slightly less than the width of the flat-folded pack sleeves between the fold edges, the fold edges press against the grooves from the inside and the pack jackets are securely held between the grooves in a form-fitting and non-positive manner.
  • the recordings and the grooves do not remain in this arrangement to one another. Rather, the recordings are from the
  • the folded position is preferably an end position of the recordings. Further pivoting is then not absolutely necessary, although this is also not mandatory.
  • the pack jackets of the pack stack are further preferably arranged with their edges in alignment with one another.
  • stacks can have an at least substantially vertical stacking direction. However, this is not necessary for the pack stacks.
  • the flat-folded pack jackets are arranged one behind the other in the pack stack at least substantially in the horizontal direction. Due to the arrangement of the flat-folded pack jackets, however, for the sake of better understanding, the present case is referred to as a pack stack.
  • those with the folded edges in the grooves are those received in the starting position
  • Withdrawal transport direction is bent or, if necessary, kinked, whereby the, if necessary further, unfolding of the package jacket can take place more reliably.
  • Received transfer grippers are moved further in the withdrawal transport direction, in particular along the withdrawal transport path, that is to say in continuation of the withdrawal transport direction of the package jackets, relative to the transfer gripper.
  • the transfer gripper can remain in a stationary position for the sake of simplicity. This also ensures that the back of the
  • Pack jacket is bent or kinked against the transport direction or backwards in order to make the, if necessary further, unfolding of the pack jackets more reliable.
  • the transfer gripper can preferably up to a position along the
  • Pull-off transport path are moved into which the transfer gripper has already been moved with the same pack jacket.
  • the transfer gripper has already been moved with the same pack jacket.
  • Take-over gripper has taken over the pack jacket, is bent or, if necessary, kinked, whereby the packing jacket can be unfolded more reliably.
  • the back of the package jacket preferably remains further to the rear curved and / or nodded.
  • after they have been moved further along the transport direction, in particular against the take-over gripper they can be moved back again in sections against the withdrawal transport direction, in particular pressed. For the sake of simplicity, this can be done along the trigger transport path.
  • the packing jacket is held with its folded edges in the grooves of the receptacles. In this way it is also achieved that the front side of the packing jacket
  • the package jacket is reliably brought into a position in which this front side of the package jacket is bent or, if necessary, kinked forward, i.e. in the transport direction and away from the stand at which the transfer gripper has taken over the pack jacket, so that the packing jacket can be unfolded more reliably .
  • the rear side of the package jacket also preferably remains bent backwards and / or nodded.
  • the unfolding can therefore in principle be improved in that the
  • Packing jackets are bent and / or kinked in the grooves at least in sections in the take-off transport direction.
  • the corresponding pack jacket is preferably received in the grooves of the receptacles in such a way that the front side of the pack jacket, which is the front in the withdrawal transport direction, is bent or kinked in the withdrawal transport direction or forward.
  • the packing jacket can then at least
  • the packing jacket is then back at least in sections in the take-off transport direction, while the folded edges of the pack jackets continue in the grooves are included.
  • the rear side of the package jacket is bent and / or kinked against the withdrawal transport direction.
  • the front side should preferably then be bent or kinked forwards in order to simplify further unfolding. It is therefore useful if the packing jacket is then back at least in sections in the
  • Trigger transport direction is bent and / or kinked.
  • a package jacket with the folded edges is provided in the grooves of the receptacles, the back of which is bent or kinked to the rear and whose front is bent or kinked to the front.
  • packing shells are preferably somewhat less wide than the groove bases of the grooves of the receptacles are spaced apart from one another. The unfolding is forced so that the folding edges, while they are arranged in the grooves of the receptacles, are pressed against one another. This leads to a slightly open
  • the channel tapers in such a way that the package jacket does not fit through the channel in its original width between the folded edges.
  • the folding edges are moved towards one another by the lateral boundaries of the channel when the packaging jackets are pulled through the channel, so that the packaging jackets are forcibly unfolded to at least a small extent.
  • the pack jackets which are folded flat around two fold edges extending in the longitudinal direction of the pack jackets, can initially be kept ready one behind the other in a pack stack. It is particularly preferred here if the pack jackets lie congruently on top of one another, the fold edges being aligned at least essentially parallel to one another. In this way, the pack sleeves can be taken over by the transfer gripper in quick succession.
  • the pack jackets can be kept ready in such a way that the next pack jacket intended to be taken over, in particular the
  • a particularly reliable takeover of the pack jackets can be achieved if, in addition, the pack jackets from the takeover gripper by a side of the Trigger stops limited trigger gap can be deducted.
  • Trigger stops then have enough space to move them into position
  • the unfolded pack jackets can be delivered one after the other, preferably in a longitudinal direction of the pack jackets, to a mandrel wheel of a molding station, in particular pushed onto the mandrels of the mandrel wheel. Packing bodies open on one side can then be formed on the mandrel wheel in the manner desired in each case. For reasons of space and to simplify the method, it is particularly advantageous if the folded-out package jacket is delivered upwards to the mandrel wheel or to a mandrel of the mandrel wheel.
  • the pack jackets to be unfolded or unfolded cannot accidentally slide downwards along the grooves of the receptacles in the direction of gravity
  • the pack jackets to be unfolded or unfolded and held with the folded edges in the receptacles can be gripped in sections by a holding element, in particular a holding finger will. This allows the packaging jackets to be unfolded more reliably and more quickly.
  • a holding element in particular a holding finger
  • Packing jackets are pushed up onto the mandrel wheel.
  • the holding element in particular the holding finger
  • the holding element can be adjusted into a release position in which the pack jackets are no longer positively gripped underneath and can therefore be moved undisturbed by the holding element, in particular the holding finger, down onto the mandrel wheel.
  • the holding element in particular the holding finger, to hold the pack jackets in a force-locking manner and not in a form-locking manner.
  • the receptacles can be pivoted from the starting position into the folded position and back, each driven by a motor, around a pivot axis will.
  • a pneumatic and / or hydraulic pivoting of the receptacles about the pivot axis is also possible.
  • this is usually associated with a higher outlay in terms of equipment and is therefore usually less preferred. This enables a simple adjustment of the receptacles, which benefits the reliability and the throughput of the pack sleeves to be unfolded.
  • a transport device for transporting the transfer gripper is from one
  • Takeover position for taking over the flat-folded pack sleeves up to a first end position along the withdrawal transport path, in particular in the withdrawal transport direction, for transporting the takeover gripper from the first end position into an intermediate position along the withdrawal transport path, in particular against the withdrawal transport direction, and for transporting the
  • Transfer gripper from the intermediate position to a second end position in the trigger transport path, in particular trigger transport direction, is provided.
  • the transport device is thus designed so that the transfer gripper between two movements along the withdrawal transport direction, in particular in the
  • the first end position and the second end position can be at least substantially identical.
  • the intermediate position is then preferably on the haul-off transport path and between the takeover position and the respective end position.
  • the transfer gripper is therefore moved back and forth or back and forth in sections.
  • a transport device for transporting the receptacles from the receiving position for receiving the packs in the grooves along the withdrawal transport path, in particular in the withdrawal transport direction, and relative to the transfer gripper into an intermediate position and for transporting the receptacles from the intermediate position into the starting position along the withdrawal transport path , in particular against the withdrawal transport direction, is provided. The back and forth or back and forth movement of the
  • Recordings take place while the transfer gripper preferably remains stationary and can thus serve as an abutment for the pack jackets.
  • the receptacles are then initially moved further in the transport direction, so that at least the rear side of the package jacket is bent and / or kinked backwards against the transport direction.
  • the front side of the package jacket preferably exclusively the front side of the package jacket, is then bent and / or kinked forward in the direction of the transport direction.
  • the package jacket which has thus been partially unfolded, can then be unfolded further simply and reliably.
  • the package jacket is during the movement of the
  • the transfer gripper is therefore preferably only released from the pack jacket when the receptacles have reached the starting position again.
  • the packing shells can be unfolded very reliably if the
  • Recesses between the stack of packs and the grooves between one another form a channel which tapers along the withdrawal transport path, in particular in the withdrawal transport direction, in such a way that the folded edges of the pack sleeves come into contact with the receivers when moving through the channel and are consequently at least partially unfolded.
  • the recordings then serve not only to provide the grooves, but also to provide a channel, which causes at least a slight unfolding of the pack jackets. Since the channel between the recordings tapers in the direction of the grooves, the
  • the packaging sleeves are unfolded in the channel very gently for the packaging sleeves, in particular for the folded edges.
  • the magazine can release stops associated with the folding edges of the front flat-folded pack sleeve for the respective front one
  • the pack jackets can be pressed against the trigger stops by a suitable device, for example with the aid of a spring means. If a pull-off gap is provided between the pull-off stops, the take-over gripper can engage the respective front, flat-folded pack jacket of the pack stack via this gap, which can make the take-over of the pack jackets by the take-over gripper easier and more reliable.
  • Unfolding the pack jackets can be accomplished simply in terms of apparatus if a motor drive is used to pivot the receptacles from the
  • the receptacles can each be assigned a pivot axis about which the receptacles can be pivoted easily and reliably therein
  • pivot axes are each connected to the associated receptacle via a pivot arm extending transversely to the associated pivot axis.
  • a suitable pivoting movement of the recordings can thus be achieved simply and reliably.
  • the motorized drive can cross itself over to the associated
  • Pivot axis extending drive arms with the respective pivot axes be connected. A defined adjustment of the
  • a holding element in particular a holding finger
  • FIG. 2 shows a pack formed from the pack jacket according to FIG. 1B from the prior art in a perspective view
  • FIG. 3 shows a device for producing the pack according to FIG
  • FIGS. 4A-C show details of a device according to the invention for unfolding flat-folded packaging shells in a side view in a view from below corresponding to the viewing direction IVB from FIG. 4A,
  • 5A-E show the device from FIG. 4 in different positions during the
  • FIG. 1A a blank 1 of a packaging material laminate 2 is described, as is known from the prior art and for use with the invention
  • the packaging material laminate 2 is a laminate of several components
  • Packaging laminate 2 has two outer layers made of a thermoplastic
  • Plastic preferably polyethylene (PE), which can be sealed, e.g. welding, the outer layers of the packaging material laminate 2 allow.
  • at least one barrier layer can also be provided, which is preferably formed from aluminum, polyamide and / or an ethylene vinyl alcohol. Further layers are also conceivable.
  • the blank 1 is used to produce a package jacket 3, which is formed in that the outer and mutually opposite longitudinal edges 4 of the
  • Blank 1 bent towards one another and connected to one another, in particular sealed to one another.
  • the blank 1 has a number of bending lines 5, on which the blank 1 can be bent or creased or folded to the to form desired pack 7.
  • 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 the gable of the pack 7.
  • the blank 1 has four essentially parallel bending lines 5, on which the blank 1 before the formation of the
  • Packaging laminate 2 only has a low resistance at the same point
  • the package jacket 3 is shown after the longitudinal edges 4 of the blank 1 have been sealed to one another and after the package jacket 3 formed in this way has subsequently been folded flat.
  • the corresponding sealing seam 10 is provided near one of the two fold edges 6 along which the package jacket 3 is folded flat.
  • the two fold edges 6 correspond to two of the four parallel bending lines in the longitudinal direction of the pack jacket 3.
  • the pack jacket 3 shown has consequently been folded flat along the fold edges 6 in such a way that the front section or the front side 11 of the flat-folded pack jacket 3 and the rear section or the back 12 of the package jacket 3
  • the packaging jackets 3 can easily be stored when folded flat in this way. The subsequent unfolding around the four pre-folded bending lines 5 is then nevertheless easily possible. A packing jacket 3 with a rectangular cross section is then obtained.
  • the pack 7 shown in FIG. 2 can be obtained.
  • Packing jacket 3 have formed.
  • the longitudinal ends 14, 15 of the pack jacket 3 have been folded and sealed to form the bottom 16 of the pack 7 and to form the head 17 of the pack 7.
  • pack ears 18 are formed, which are folded down and placed against the jacket 13 of the pack 7 and sealed or glued on there.
  • the corresponding packing ears are folded inward and can therefore no longer be recognized as such after the base 16 has been formed.
  • Fig. 3 is a device 20 for unfolding flat-folded
  • Packing jackets 3 and for filling packing bodies 21, in particular with flowable foodstuffs, and for forming filled packs 7, that is to say a so-called filling machine, is shown.
  • the device 20 comprises a magazine 22 for holding packaging jackets 3 and a device for molding
  • Packing bodies 21 from the pack jackets 3, which are closed on one side and can thus, for example, receive a flowable food through the remaining opening, are shown.
  • the illustrated device 20, which is preferred in this respect, has a number of parallel processing lines, of which only one processing line 23 is shown in FIG. 3.
  • Each processing line 23 is assigned a magazine 22 with a pack stack 24 or a bundle of pack jackets 3 folded flat around two fold edges 6.
  • the packaging jackets 3 have been formed, as described above, from blanks 1 of a packaging material laminate 2, the longitudinal edges 4 of which are sealed to one another.
  • a device 25 for unfolding the packaging jackets 3, the packaging jackets 3, which are initially folded flat, are removed from the packaging
  • the unfolded pack jackets 3 are transferred upwards to a device 26 for forming the pack body 21, which has a mandrel wheel 27 which, in the illustrated and preferred case, comprises six mandrels 28 and rotates cyclically, i.e. step by step, clockwise in the first
  • Mandrel wheel position 1 a package jacket 3 is pushed onto the mandrel 28.
  • the mandrel wheel 27 is then rotated further into the next mandrel wheel position 11, in which no work step is assigned to the mandrel 28.
  • the mandrel wheel position 111 reached by rotating the mandrel wheel the one protruding from the mandrel 28 becomes
  • the longitudinal end 15 of the package jacket 3 is heated with hot air via a heating unit 29.
  • the heated longitudinal end 15 of the package jacket 3 is heated with hot air via a heating unit 29.
  • Mandrel wheel position V in the folded position is tightly closed by a sealing device 31, in particular sealed to form a base 16.
  • a packing body 21 closed on one side is obtained, which is removed from the mandrel 28 in the subsequent mandrel wheel position VI and transferred, for example, to a cell 32 of an endless transport device 33 guided in a circle.
  • Processing steps can, if necessary, differ from the illustration according to FIG. 3 and the associated description.
  • a spout can be connected to the packaging material laminate in at least one further mandrel wheel position, if required. Then the longitudinal end of the pack jacket closed on the mandrel wheel is preferably the head of the later pack. Whether the packing body is filled by the later head or through the later base plays only a subordinate role in the present case.
  • the packing body 21 removed from the mandrel wheel is transported through a filling machine 34 with the open longitudinal end pointing upwards in the associated cell 32, in particular a cell chain.
  • the packing body enters a
  • Aseptic chamber 35 which comprises a sterilization zone 36 and a filling and sealing zone 37, through which the pack bodies 21 are transported from left to right in the transport direction symbolized by the arrows.
  • the packing bodies 21 need not be transported in a straight line, but can also take place in at least one arc or even in a circle.
  • Sterile air is supplied to the aseptic chamber 35 via corresponding sterile air connections 38.
  • the packing bodies 21 are successively preheated by a preheating device 39 by blowing hot sterile air on them. Then the packing bodies 21 are sterilized by means of a sterilizing device 40, preferably by means of hydrogen peroxide, whereupon the packing bodies 21 are through
  • Pack bodies 21 are then closed with a closing device 45 by folding the upper region of the pack body 21 and sealing.
  • the filled and closed packs 7 are then removed from the cells 32 of the
  • Transport device 33 removed.
  • the now empty cells 32 are moved further with the transport device 33 in the direction of the mandrel wheel 27 in order to receive further packing bodies 21 there.
  • 4A shows the device 25 for unfolding flat-folded
  • the device 25 for unfolding flat-folded pack jackets 3 comprises a take-over gripper 50 for gripping the respective front, flat-folded pack jacket 3 and for moving away the gripped front pack jacket 3 of the pack stack 24 from the flat-folded one
  • the transfer gripper 50 shown which is preferred in this respect, has five suction cups 51. A different number of suction cups 51 would also be conceivable. A negative pressure can be drawn on the suction cups 51 when the suction cups 51 rest with their openings on a flat-folded pack jacket 3. In order to move away the gripped front pack jacket 3 of the pack stack 24 of flat-folded pack jackets 3, the transfer gripper 50 is held adjustable by a transport device (not shown). The
  • Transport device comprises a motor for the motorized drive of the
  • the takeover gripper 50 In the takeover position, the takeover gripper 50 can the front side 11 of the front, flat-folded
  • FIGS. 10 and 11 A possible embodiment of the transport device for adjusting the transfer gripper 50 from the transfer position to the holding position is shown in FIGS. 10 and 11
  • the transfer gripper 50 pulls the gripped pack sleeves 3 away from the pack stack 24 along a withdrawal transport path TB in a withdrawal transport direction TR.
  • the transfer gripper 50 pulls the gripped pack sleeves 3 away from the pack stack 24 along a withdrawal transport path TB in a withdrawal transport direction TR.
  • the withdrawal transport path TB and the withdrawal transport direction TR are straight, even if this does not necessarily have to be the case. On both sides of the
  • Takeover gripper 50 is a recording is provided, which is in the
  • Tapered trigger transport direction TR At the rear end of a tapering channel 52 between two, seen in the withdrawal transport direction TR
  • Recesses 53 are adjoined by a groove 54 on the channel 52 on each recess 53.
  • the grooves 54 are arranged at least essentially opposite one another, specifically in relation to the take-off transport direction TR.
  • the openings of the grooves 54 point approximately in the direction of the respective other groove 54.
  • the two receptacles 53 are also arranged pivotably by the folding device 49 and are provided for pivoting by an electric motor drive 55 of the folding device 49.
  • the receptacles 53 are each arranged across one another transversely to the respective pivot axis 56 extending pivot arm 57 is connected to a pivot axis 56 about which the receptacles 53 can be pivoted in a motor-driven manner.
  • each of the two pivot axes 56 is in turn connected to the motor drive 55 via a drive arm 58 extending transversely to the pivot axis 56.
  • the drive arms 58, 59 of the two pivot axes 56 are connected to one another via a link lever 60.
  • a drive arm 58 is remotely connected with a coupling lever 61 to the output lever 62 of the motor drive 55.
  • the transfer gripper 50 Unfolding the flat-folded packaging jackets 3 shown. 5A, the transfer gripper 50 has been moved by the withdrawal transport device TR into the extended transfer position, in which the suction cups 51 of the transfer gripper 50 rest on the forward-facing front side 11 of the foremost, flat-folded pack jacket 3. The air is partially withdrawn from the suction cups 51 in order to generate a negative pressure in the suction cups 51 resting on the pack jackets 3.
  • the flat-folded pack jackets 3 are each folded flat around two fold edges 6 and are received in a pack stack 24 one behind the other in the magazine 22.
  • the front, flat-folded package jacket 3 rests with the opposite edges 63 of the front side 11 associated with the folded edges 6 against trigger stops 64, which hold the respective front package jacket 3 of the package stack 24 of flat-folded package jackets 3 in a defined position. Since they are spaced apart from one another and assigned to the opposite folding edges 6, the trigger stops 64 provide a trigger gap 65 between one another through which the transfer gripper 50 can reach the each front pack jacket 3 of the magazine 22 can be brought up. The transfer gripper 50 thus grips the front side 11 of the front flat-folded pack jacket 3, which faces the front
  • this represents an at least substantially rectilinear movement which is at least substantially perpendicular to the pack stack 24, in particular to the front pack jacket 3 of the
  • Pack stack 24 is aligned. However, a differently aligned withdrawal transport path TB and withdrawal transport direction TR would also be conceivable.
  • the transfer gripper 50 is shown in a first end position into which the transfer gripper 50 is moved by the transport device
  • Trigger conveyor TB has been adjusted.
  • the transfer gripper 50 reaches this first end position at the latest, the lateral folding edges 6 of the gripped package jacket 3 enter the grooves 54 of the receptacles 53
  • packing jackets 3 get into the grooves 54, the packing jackets 3 are, however, in the illustrated and insofar preferred device 25 from
  • the take-off transport direction TR tapers and which is formed or laterally limited by the receptacles 53 providing the grooves 54.
  • the tapering of the channel 52 is designed such that the channel 52 is wider in a front section than the flat-folded package jackets 3 between the folded edges 6 and that the channel 52 in a rear section is narrower than the flat-folded package jackets 3 between the fold edges 6.
  • the fold edges 6 of the pack jackets 3 come into contact with the insides of the receptacles 53 as they are pulled through the channel 52, which press the fold edges 6 against each other, whereby the pack jackets 3 are easily unfolded or bent. Press the resulting restoring force of the packing jacket 3 the folding edges 6 into the grooves 54 when the transfer gripper 50 has pulled the pack jackets 3 far enough through the channel 52 between the receptacles 53.
  • the front side 11 and the rear side 12 of the package jacket 3 are shown here bent along the bending lines 5 between the fold lines 6.
  • the front side 11 and the rear side 12 could alternatively or additionally also be curved.
  • both the front side 11 and the rear side 12 are also bent forward in the take-off transport direction TR, but the rear side 12 could also be bent counter to the withdrawal transport direction TR.
  • This does not apply to the front side 11, since in the first end position with the suction cups 51 the transfer gripper 50 is arranged further back than the grooves 54.
  • the receptacles 53 are still in their starting position.
  • FIG. 5C the transfer gripper 50 has been moved from the first end position counter to the withdrawal transport direction TR and back along the withdrawal transport path TB into an intermediate position. In this intermediate position, the
  • Transfer gripper 50 or its suction cups 51 are arranged somewhat further in the direction of the pack stack 24 than the grooves 54 of the receptacles 53.
  • the suction cups 51 of the transfer gripper 50 are in FIG
  • Transfer gripper 50 is kinked or bent towards the rear, that is, against the withdrawal transport direction TR. Even when the transfer gripper 50 is moved back in sections from the first end position into the intermediate position, the receptacles 53 having the grooves 54 remain in their starting position. In FIG. 5D, the transfer gripper 50 has been adjusted again in the withdrawal transport direction TR along the withdrawal transport path TB, specifically up to a second end position, the position of which can be at least essentially identical to the first end position. The transfer gripper 50 is in the Withdrawal transport direction TR with the suction cups 51 arranged further back than the grooves 54 of the receptacles 53. The suction cups 51 of the transfer gripper 50 are therefore further spaced from the pack stack 24 than the grooves 54 of the receptacles 53.
  • Trigger transport direction TR kinked or bent. Meanwhile, however, the rear side 67 of the gripped pack jacket 3 remains kinked or bent to the rear, that is to say in the direction of the pack stack 24 or against the withdrawal transport direction TR.
  • the receptacles 53 remain in their
  • the transfer gripper 50 is located in a position clearly behind the grooves 54 of the receptacles 53 when viewed in the withdrawal transport direction TR, so as not to hinder the further unfolding of the package jacket 3.
  • the receptacles 53 are pivoted relative to one another and about corresponding pivot axes 56 in order to unfold the package jacket 3.
  • this pivoting of the receptacles 53 takes place in the same pivoting direction SR represented by the arrows, here in the clockwise direction.
  • the pivoting of the receptacles 53 takes place until the receptacles 53 in one
  • Folded position are arranged in which the pack jacket 3 is arranged in the unfolded position.
  • the restoring force pressing the folded edges 6 of the package jacket 3 into the grooves 54 of the receptacles 53 is relatively small. So that the pack jackets 3 still do not slide down inadvertently, the pivot arms 57 of the receptacles 53 are directly below the pack jacket 3 that is gripped and / or the unfolded pack jacket 3 arranged.
  • the package jacket 3 can therefore sit on the pivot arms 57 or, if it slips down slightly, along the grooves 54 in
  • the pack jacket 3 has a rectangular cross section in the unfolded position. However, other cross-sections are conceivable, in particular a square cross-section.
  • the package jacket 3 is delivered upwards along the longitudinal axis of the package jacket 3 to a mandrel 28 of a mandrel wheel 27.
  • the receptacles 53 are pivoted back into the starting position after pivoting into the folded position and the delivery of the unfolded package jacket 3 to the mandrel wheel 27 in order to receive the next pack jacket 3 to be unfolded in this starting position.
  • the method described can therefore often be carried out one after the other in the same way in order to be able to unfold a large number of packaging sleeves 3 in a short time and one after the other.
  • the receptacles together with the grooves can also be adjusted.
  • the receptacles can be adjusted further in the take-off transport direction, with the transfer gripper being able to remain stationary as a counter bearing for the pack jacket, for example in the end position. This adjustment of the recordings then takes place, if necessary, so far that the grooves are arranged further back in the take-off transport direction than the area of the gripped by the transfer gripper
  • a folding device 66 is an alternative device for
  • the folding device is particularly suitable for multi-lane systems in which several pack sleeves are unfolded parallel to one another and delivered to the associated mandrel wheels.
  • multi-lane systems are known in principle.
  • receptacles 67 carrying pivot arms 68, 69 are arranged in pairs grouped next to one another.
  • One of the pairs of swivel arms 68, 69 is driven by a first motor drive 70 and the other swivel arm 69 is driven by a second motor drive 71.
  • the pivot arms 68,69 are connected to the two via drive arms 72,73 and coupling levers 74,75
  • Motorized drives 70,71 associated output levers 76,77 so that a rotation of the output levers 76,77 can be implemented via a motorized drive 70,71 to pivot the pivot arms 68,69 about respectively assigned pivot axes 78,79.
  • the pivot arms 68, 69 By appropriately pivoting the pivot arms 68, 69 from the position shown in FIG. 6A into the position shown in FIG. 6B, the pack jackets held between the pivot arms 68, 69 or the associated receptacles 67 are unfolded. After the unfolded pack jackets have been transferred to assigned mandrel wheels and the swivel arms subsequently pivoted back from the position shown in FIG. 6B to the position shown in FIG. 6A, further pack jackets can be received in the receptacles 67 of the swivel arms 68,69 in order to accommodate them
  • Unfold packing sleeves in a further step it would also be conceivable to swivel the swivel arms via a single motor drive. However, the use of two motorized drives simplifies the adjustment and the regulation of the device for at least partially unfolding flat-folded packaging sleeves.

Landscapes

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

Abstract

L'invention décrit et illustre un procédé de dépliage au moins partiel d'enveloppes d'emballage (3) pliées à plat, les enveloppes d'emballage (3) étant pliées à plat autour de deux arêtes de pliage (6) s'étendant dans la direction longitudinale des enveloppes d'emballage (3). Afin de pouvoir assurer un dépliage fiable mais néanmoins rapide d'enveloppes d'emballage pliées à plat pour former des corps d'emballage ouverts d'un côté, sans entraîner pour cela un coût excessif en termes d'appareillages ou de procédés, selon l'invention, les enveloppes d'emballage (3) pliées à plat sont saisies les unes après les autres par un dispositif de préhension de transfert (50) sur un côté entre les deux arêtes de pliage (6), les enveloppes d'emballage (3) pliées à plat sont déplacées, en particulier tirées, par le dispositif de préhension de transfert (50), le long d'une trajectoire de transport de traction (TB) des enveloppes d'emballage (3), de préférence avec un dépliage au moins partiel des enveloppes d'emballage (3), avec les arêtes de pliage (6) dans des rainures (54) de logements (53, 67) mutuellement opposés, disposés à chaque fois dans une position initiale, les logements opposés (53, 67) sont pivotés, notamment simultanément, de la position initiale à une position de pliage dans laquelle l'enveloppe d'emballage respective (3) pliée avec les arêtes de pliage (6) est retenue dans les rainures (54) des logements (53, 67), les enveloppes d'emballage (3) pliées sont délivrées à un poste de formage et les logements (53, 67) sont ramenés par pivotement à chaque fois de la position de pliage à la position initiale pour recevoir (54) une enveloppe d'emballage (3) supplémentaire.
PCT/EP2020/058361 2019-04-26 2020-03-25 Procédé et dispositif de dépliage au moins partiel d'enveloppes d'emballage pliées à plat WO2020216564A1 (fr)

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DE102019110914.0A DE102019110914A1 (de) 2019-04-26 2019-04-26 Verfahren und Vorrichtung zum wenigstens teilweisen Auffalten von flachgefalteten Packungsmänteln

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CN114396772B (zh) * 2022-01-24 2022-09-30 佛山市天劲新能源科技有限公司 一种具有在线检测含水率功能的锂电池烘干装置及方法

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US2887021A (en) * 1956-04-04 1959-05-19 Ex Cell O Corp Apparatus for feeding blanks to a container fabricating machine
DE102011054327A1 (de) * 2011-10-10 2013-04-11 Elopak Systems Ag Füllmaschine zum Abfüllen von Produkten in Packungsbehälter sowie Verfahren hierzu
DE102012102812A1 (de) * 2012-03-30 2013-10-02 Elopak Systems Ag Vorrichtung und Verfahren zum Reduzieren von Rückstellkräften von Packungsmänteln in einer Füllmaschine
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