EP4166460A2 - Dispositif de pliage de bord latéral - Google Patents

Dispositif de pliage de bord latéral Download PDF

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Publication number
EP4166460A2
EP4166460A2 EP22174738.9A EP22174738A EP4166460A2 EP 4166460 A2 EP4166460 A2 EP 4166460A2 EP 22174738 A EP22174738 A EP 22174738A EP 4166460 A2 EP4166460 A2 EP 4166460A2
Authority
EP
European Patent Office
Prior art keywords
side edge
paper
folding
packaging machine
packaging
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP22174738.9A
Other languages
German (de)
English (en)
Other versions
EP4166460A3 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BVM Brunner GmbH and Co KG
Original Assignee
BVM Brunner GmbH and Co KG
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 BVM Brunner GmbH and Co KG filed Critical BVM Brunner GmbH and Co KG
Publication of EP4166460A2 publication Critical patent/EP4166460A2/fr
Publication of EP4166460A3 publication Critical patent/EP4166460A3/fr
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B7/00—Closing containers or receptacles after filling
    • B65B7/16—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons
    • B65B7/28—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons by applying separate preformed closures, e.g. lids, covers
    • B65B7/2842—Securing closures on containers
    • B65B7/285—Securing closures on containers by deformation of the closure
    • B65B7/2857—Securing closures on containers by deformation of the closure and the container rim
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B7/00—Closing containers or receptacles after filling
    • B65B7/16—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons
    • B65B7/28—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons by applying separate preformed closures, e.g. lids, covers
    • B65B7/2842—Securing closures on containers
    • B65B7/2871—Securing closures on containers by gluing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B7/00—Closing containers or receptacles after filling
    • B65B7/16—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons
    • B65B7/28—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons by applying separate preformed closures, e.g. lids, covers
    • B65B7/2842—Securing closures on containers
    • B65B7/2892—Securing closures on containers by deformation of the container rim
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/02—Applying adhesives or sealing liquids

Definitions

  • the invention relates to a side edge folding station for a packaging machine for folding a side edge of a (paper) packaging surrounding a package, with a support for the side edge and a folding foot for fixing the side edge on the support and a side edge folding device arranged in the region of the support and movable relative to the support for Folding of the fixed side edge.
  • a maxi letter may have a length of 10 - 35.3 cm, a width of 7 - 25 cm and a height of up to 5 cm.
  • the object of the present invention is to provide a side edge folding device and a packaging machine with such a side edge folding device with which one or two side edges of a package can be closed in a simple manner.
  • a side edge folding station for a packaging machine for folding a side edge of a (paper) packaging surrounding a package with a support for the side edge and a folding foot for fixing the side edge on the support and arranged in the region of the support relative to the support movable side edge folding device for folding the fixed side edge, wherein the side edge folding device is set up to perform a movement with a vertical and a horizontal movement component for erecting the side edge.
  • the opened side edge can thus first be fixed on the support by the folding foot.
  • the side edge folding device can then carry out a superimposed vertical and horizontal movement and thereby erect the side edge around the folding foot, so that the side edge can then be folded over.
  • a movement with a vertical and a horizontal movement component can, for example be circular motion. However, it can also be a linear movement oblique to the horizontal.
  • the side edge folding device carries out a linear movement at an angle 0° ⁇ 90° to the horizontal to erect the side edge.
  • a linear movement can be implemented particularly easily. With such a movement, the side edge can be erected and folded toward the center of the package.
  • This folding 0° ⁇ ⁇ ⁇ 90° has the advantage that the restoring force of the unfolded paper edge means that the folded paper does not want to wriggle out of the paper fold border that has arisen up to this point (seen on the left and right), but it is pressed into the paper fold border by the restoring force in. This allows the folding foot to be removed without the paper stretching out again.
  • the side edge folding device can have a roller bar.
  • a lower layer of paper at the edge of the page can be pushed up by the roller bar.
  • the roller strip nestles the edge of the packaging around an edge of the folding foot.
  • the use of a roller bar has the advantage over the use of a bar that the formation of creases on the side edge can be counteracted.
  • the use of a roller bar can prevent the package from being offset when the side edge is formed.
  • the side edge folding device can have a bar which can be pivoted to press the folded side edge onto the support.
  • the side edge can thus be pressed on by the bar, so that the side edge is glued.
  • the bar can have a flexible material, in particular rubber, on its underside. If there are any bumps at the edge of the page, e.g. due to the formation of folds or uneven application of adhesive, these bumps can be compensated for by the flexible material and reliable adhesion can still be ensured.
  • the roller bar can be arranged at one end of the beam.
  • the diameter of the rollers and the position of the rollers of the roller bar can be chosen so that the roller bar is not in contact with the side edge when the side edge is pressed by means of the bar.
  • the side edge folding device can comprise two length-adjustable arms on which the beam is pivotally mounted.
  • the pivoting movement of the beam can in particular be driven pneumatically.
  • the length-adjustable arms can be telescopic.
  • the folding foot comprises a pivoting part which, in particular against a restoring force, can be pivoted relative to a folding foot base part. This measure allows the pivoting part to be pivoted in the direction of the center of the packaging and thus removed from the side edge, so that it is also ensured that the folding foot does not come into contact with a trace of adhesive on the side edge.
  • the support can be designed as a vacuum bar or include one.
  • the side edge can be fixed on the support when the folding foot has been raised. This can prevent the packaging from shifting while the side edge is being pressed on.
  • a packaging machine with a side edge folding station according to the invention also falls within the scope of the invention. There is no waste when creating the packaging.
  • the machine can be designed to pack the largest possible package 35x25x5 (maxi letter).
  • the width specified here corresponds to the length and can, just like the height. be adjusted.
  • the length of 10-35.3 cm specified here (the width in the case of the packaging produced with the packaging machine according to the invention) can be adjusted, for example, by changing the paper roll.
  • It can be single format packaging machine. In particular, there can be no adjustment option for the width of a package. However, the height of the packaging can be adjusted automatically by the paper placed around the package. The length of the packaging can be adjusted by the paper web deductions. A counter can be provided which counts the packed packages.
  • the packaging machine has a surface head for the surface application of adhesive to a paper web.
  • adhesive can be applied particularly easily to a paper web moving past it.
  • a so-called PSA adhesive is particularly preferably applied in this case.
  • Such an adhesive can be applied warm. It remains permanently adhesive until it is pressed on.
  • the surface head can be set up to apply two parallel, spaced-apart lines of adhesive.
  • One line of glue can be used to glue an upper and a lower layer of paper together, with the package being placed between the lower and the upper layer of paper.
  • the second, outer line of adhesive can be used to glue the folded side edge and thus to close the packaging.
  • the distance between the surface head and a transport plane in which the paper web is transported can be adjusted.
  • the surface head can be spaced apart from the paper web when the paper web is at a standstill because there is currently no package to be packed. This can prevent the paper web from becoming saturated with adhesive.
  • the surface head can be at a distance from a separating device that is set up to separate glued paper webs, which distance corresponds to the length of the smallest package to be packaged.
  • the adhesive track is usually interrupted at the points where the paper webs are to be connected to one another.
  • the shortest line of adhesive to be applied corresponds to the distance between the separating device and the surface head.
  • the distance is preferably at least 8 cm. A larger distance would result in a much larger minimum packet.
  • An adhesive with a long open time in particular a permanently adhesive adhesive, is preferably used. It goes without saying that at least one line of adhesive or glue can be applied to two opposite sides of the wider paper ply and the wider paper ply can be folded onto the narrower paper ply. Before folding, the narrower paper layer can be pressed onto the wider paper layer. It is not absolutely necessary to connect the narrower paper layer to the wider paper layer before folding. It is even advantageous to proceed in this way, since larger objects can be packed with the same paper layer width. There is also a reduced risk of wrinkling.
  • the narrower paper ply Since the wider paper ply is folded over by more than 90°, the narrower paper ply is held by the folded edge of the wider paper ply and the narrower paper ply is prevented from detaching from the wider paper ply before the edge of the wider paper ply meets the narrower paper ply is glued.
  • step d the paper layers for a side edge of the next packaging to be produced in a packaging machine can be connected at the same time.
  • the paper layers can therefore be glued or glued together in front of the next object.
  • Two paper webs can be fed to the packaging machine as upper and lower paper layers, with the front edges of the paper webs being brought together and glued or glued together in the transport direction of the paper webs.
  • Two parallel lines of glue or glue can be applied to the wider paper layer.
  • the narrower paper ply can be glued or glued to the wider paper ply using the inner bead of glue or glue.
  • the protruding edge of the wider paper layer can then be folded over and glued or glued to the narrower paper layer using the outer adhesive or glue line. This reliably seals the packaging.
  • the line of adhesive or glue is preferably applied before an object to be packaged is inserted, in particular before the paper layers are connected behind the inserted object. Furthermore, adhesive or glue is preferably only applied for the item currently to be packaged. Thus there is no data offset. A data offset could lead to problems in the event of malfunctions in the packaging machine, e.g. if glue or adhesive were applied for the 3rd or 4th item to be packaged. In such a case, all packaged goods (objects) that have already been measured would have to be cleared out of the system and placed again.
  • Traces of glue or adhesive are preferably applied to a web or sheet of paper that is still flat before it is folded over the object to be packaged. This applies in particular to traces of glue or adhesive that are applied to a lateral edge area of a paper web. Applying traces of glue or adhesive to a flat paper web requires particularly little effort.
  • the application of the traces of adhesive is preferably always carried out for the next object.
  • a trace of adhesive can first be applied for the smallest object to be packaged, corresponding to the smallest intended package. If the next item to be packaged corresponds to the smallest item to be packaged, you can start with a gap and then apply the glue line for the smallest possible package. If the next item to be wrapped is larger than the smallest item to be wrapped, the glue trail may be extended then leave a gap and then apply a track corresponding to the smallest intended packaging for the next item.
  • a line of adhesive can always be applied first in a length that is suitable for the smallest possible packaging. If the next item to be wrapped is larger (longer) than the smallest possible item to be wrapped, the glue line can be lengthened accordingly. A gap may be left between traces of glue for consecutive items. The size of an item to be packaged can be specified or measured.
  • the adhesive is a permanently adhesive adhesive. If the glue for the smallest possible packaging is applied and no items are inserted for packaging for a long time, a normal glue with an open time would dry up and would no longer be usable. Empty packaging would have to be produced after each downtime of the system and this empty packaging would then have to be ejected.
  • the (paper) packaging machine 10 shown for packaging a package in a package made of an upper paper layer and a lower paper layer, the upper paper layer being narrower than the lower paper layer, has a connecting and separating device 11 and a side edge folding station 12.
  • a connecting and separating device 11 In the joining and separating device 11, an upper and lower layer of paper are glued together so that a paper curtain is formed.
  • the connected paper layers are pulled in a transport direction by a pull-off device, so that a package to be packaged can be introduced between the paper layers.
  • the layers of paper behind the package halfway through the Connecting and disconnecting device 11 glued together.
  • the layers of paper are then separated so that the package is enclosed in a kind of banderole by the layers of paper except for two sides and a new curtain of paper is available for packaging a new package.
  • the 2 shows the essential parts of the side edge folding station 12 in a front view. Only the left half 13 of the side edge folding station 12 is described below. The left half 13 is used to form a left side edge, the right half 15 of the side folding station 12 is used to form a right side edge and is constructed analogously. Between the halves 13, 15 a conveyor belt, not shown here, is arranged, with which a side-opened package can be transported into the side edge folding station 12.
  • the side edge folding device 12 has a support 14 which includes a vacuum bar 16 , it being possible for the vacuum bar 16 to be integrated into the support 14 .
  • a folding foot 18 is arranged above the support 14 .
  • the folding foot 18 has a base part 20 and a pivoting part 22 which can be pivoted about the axis 24 . The pivoting movement is limited by two stops 26,28.
  • the pivoting part 22 is pivoted against the restoring force of a spring, not shown here.
  • the pivoting part 22 of the folding foot 18 has a folding edge 30 .
  • the folding foot 18 is in the direction of the double arrow 32, d. H. inclined to the horizontal, movable.
  • the folding foot 18 can perform a linear movement in the direction of the double arrow 32 .
  • the movement has a horizontal and a vertical movement component. The linear movement takes place at an angle ⁇ to the horizontal.
  • the side edge drop station 12 also has a side edge folding device 34 .
  • the side edge folding device 34 comprises a beam 36, at the end of which a roller bar 38 is arranged.
  • the roller bar 38 can be adjusted in the direction of the double arrow 40 .
  • the movement therefore includes a vertical and a horizontal movement component.
  • the roller bar 38 can be adjusted at an angle to the horizontal.
  • the direction of movement according to the double arrow 40 is at an angle ⁇ to the horizontal, where ⁇ > ⁇ .
  • the folding foot 18 was moved obliquely downwards, so that the folding foot 18 rests on the support 14 and thereby fixes a side edge of a packaging, not shown here.
  • the side edge of the packaging protrudes to the left beyond the roller strip 38.
  • the roller bar 38 was moved obliquely upwards. As a result, the overhanging side edge of the packaging is erected and partially folded around the folded edge 30 of the folding foot 18 .
  • the figure 5 pivoting member 22 pivots counterclockwise so that it is moved away from the partially folded side edge of the package.
  • the pivoting part 22 is pivoted in the direction of the center of the packaging. This can ensure that when the folding foot 18 is shifted upwards at an angle, as is shown in FIG 6 is shown, contact of the folding foot 18 with a trace of adhesive on the folded edge of the packaging is avoided.
  • the side edge of the packaging is fixed by the vacuum strip 16, so that the packaging, the side edge of which is not yet completely folded over, remains in place.
  • the bar 36 has been pivoted about the axis of rotation 42 and thereby presses the folded side edge onto the support 14 . This results in a gluing of the side edge.
  • the bar 36 has a layer 44 of flexible material, such as rubber.
  • the side edge folder 34 has arms 46 with respect to which the beam 36 is pivotable.
  • the beam 36 is connected to a pneumatic cylinder 48 at one end. The adjustment of the folding foot 18 in the direction of the double arrow 32 and the roller bar 38 in the direction of the double arrow 40 can also be done pneumatically.
  • the 8 shows part of the paper packaging machine 10 including the separating device 11 according to FIG 1 .
  • a surface head 50 for applying glue The area head 50 can put traces of adhesive on a paper web 52 which is fed from below.
  • the distance between the surface head 50 and the paper web 52 can be adjusted, in particular perpendicularly to a transport plane of the paper web 52.
  • the surface head 50 can be removed from the paper web 52 in order to ensure that the paper web 52 is saturated with adhesive impede.
  • a paper web 54 is fed from above, wherein the paper webs can be glued together at a point 56. This creates a paper curtain.
  • a separation is carried out at point 56 after the gluing.
  • a package 58 to be wrapped can be placed between the paper webs 52,54. If the connected paper webs 52, 54 are pulled off to the right, the paper webs 52, 54 can be connected again after the package 58 has passed through, so that the package 58 is virtually surrounded by a banderole.
  • the distance from point 56 to surface head 50 corresponds to the shortest length of a package 58 to be packed.
  • the 9 Figure 12 shows a partial section through a package before folding a side edge.
  • the lower paper layer 52 and the upper paper layer 54 can be seen, between which the package 58 to be packaged is arranged.
  • On the lower layer of paper 52 there are two traces of adhesive 60, 62 applied by the area head 50, which are spaced apart from one another.
  • the upper paper layer 54 is narrower than the lower paper layer 52.
  • the upper paper layer 54 is connected to the lower paper layer 52 via the adhesive line 62.
  • the adhesive of the adhesive tracks 60, 62 is a permanently adhesive adhesive that is adhesive until it is pressed on. It is pressed on via the folding foot 18.
  • the fact that the traces of glue 60, 62 are at a distance from one another can prevent the outermost end of the paper layer 54 from also being glued to the lower paper layer 52. This can facilitate the subsequent folding of the side edge.
  • the adhesive track 62 can be omitted.
  • FIG. 12 shows a front plan view of the package 64 formed from the layers of paper 52,54. At the front end is a front side edge 66 which is formed at 56 ( 8 ) was formed by gluing the top and bottom paper layers 52, 54 together.
  • the packaging 64 in which the packaged item 58 to be packaged is already located, lies on a conveyor belt 68.
  • the side edge 70 rests on the support 14 and is fixed from above by the folding foot 18 . In particular, the folding foot 18 firmly clamps the side edge 70 onto the support 14 .
  • the side edge 70 extends beyond the roller bar 38.
  • the roller strip 38 is then moved obliquely upwards in the direction of arrow 41, as a result of which the side edge 70 is folded around the folding edge 30.
  • the pivoting part 22 can pivot in the direction of the arrow 72 so that it is removed from the adhesive track 60 .
  • the folding foot 18 can then be moved in the direction of the arrow 31 or superimposed. Contact of the folding foot 18 with the trace of adhesive 60 can also be avoided by this movement.
  • the side edge 70 can be fixed via the vacuum strip 16 .
  • bar 36 is pivoted to align side edge 70 with adhesive line 60 on top of top paper ply 54 at location 72 (see Fig 9 ) to glue.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
EP22174738.9A 2021-10-15 2022-05-23 Dispositif de pliage de bord latéral Pending EP4166460A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102021126743.9A DE102021126743A1 (de) 2021-10-15 2021-10-15 Seitenrandfalteinrichtung

Publications (2)

Publication Number Publication Date
EP4166460A2 true EP4166460A2 (fr) 2023-04-19
EP4166460A3 EP4166460A3 (fr) 2023-05-24

Family

ID=81841996

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22174738.9A Pending EP4166460A3 (fr) 2021-10-15 2022-05-23 Dispositif de pliage de bord latéral

Country Status (2)

Country Link
EP (1) EP4166460A3 (fr)
DE (1) DE102021126743A1 (fr)

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1511563A1 (de) * 1966-04-02 1969-08-14 Erich Dietrich Vorrichtung zum Einfalzen von Deckblaettern aus Aluminium-,Kunststoff- oder Zellglas-Folie in eckige Aluminiumfolienbehaelter
DE2252927C2 (de) * 1972-10-27 1974-10-31 Eugen 7000 Stuttgart Schierle Vorrichtung zum Verschließen von Schalen mit Aluminiumfolie o.dgl
US3866393A (en) 1973-05-07 1975-02-18 Cameo Inc Apparatus for forming display packages
DE2613155C3 (de) 1976-03-27 1978-11-16 Adolf Illig Maschinenbau Gmbh & Co, 7100 Heilbronn Vorrichtung zur Herstellung von Blisterpackungen
DE2721222C2 (de) 1977-05-11 1985-11-14 Unilever N.V., Rotterdam Verfahren und Vorrichtung zum Bilden einer Verpackungseinheit
DE2935479C3 (de) * 1979-09-01 1982-02-25 HD-Ekco N.V., Genk Vorrichtung zum Verschließen eines Behälters mit einem aus plastisch verformbarem Material hergestelltenDeckel.
EP0209890B1 (fr) * 1985-07-23 1989-01-11 Wilhelm Wagner GmbH & Co Dispositif de fermeture de récipients
JP2698982B2 (ja) 1988-06-24 1998-01-19 株式会社ファブリカトヤマ 袋詰め製品の口折り装置
DE4125335C2 (de) 1991-07-31 1994-02-10 Illig Maschinenbau Adolf Vorrichtung zum Herstellen von Blisterpackungen
JP2561224B2 (ja) 1994-03-23 1996-12-04 株式会社清光社 ブリスタ包装体の組立装置
DE10033796C1 (de) 2000-07-12 2001-10-11 Illig Maschinenbau Adolf Verfahren zum Herstellen von Standblisterpackungen und Vorrichtung zur Durchführung des Verfahrens
US7017638B2 (en) 2002-07-08 2006-03-28 Intel Corporation Forming folded-stack packaged device using vertical progression folding tool
ITTO20130097A1 (it) 2013-02-06 2014-08-07 Soremartec Sa Procedimento per realizzare una confezione di un prodotto alimentare, in particolare un prodotto dolciario
JP6152204B1 (ja) 2016-07-14 2017-06-21 Ckd株式会社 蓋付容器製造装置及びブリスタ包装機

Also Published As

Publication number Publication date
EP4166460A3 (fr) 2023-05-24
DE102021126743A1 (de) 2023-04-20

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