EP3439964A1

EP3439964A1 - Apparatus and method for forming the gable surfaces of packs with a sloping gable

Info

Publication number: EP3439964A1
Application number: EP17711151.5A
Authority: EP
Inventors: Felix Breitmar
Original assignee: SIG Technology AG
Current assignee: SIG Combibloc Services AG
Priority date: 2016-04-04
Filing date: 2017-03-16
Publication date: 2019-02-13
Anticipated expiration: 2037-03-16
Also published as: CN108883845A; JP2019513649A; CN108883847A; EP3439970A1; US20190055045A1; JP2019513636A; US10926896B2; DE102016109979A9; DE102016109979A1; EP3439972B1; EP3439971A1; EP3439970B1; ES2793015T3; EP3439974B1; US20190112090A1; US20190112082A1; EP3439971B1; DE102016109980A9; CN109311548A; CN108883850A

Abstract

An illustration and a description are given for an apparatus (24) for forming the gable surfaces of packs (16) with a sloping gable, comprising: a conveying device (19) having compartments (20) fastened thereon for the purpose of accommodating packs (16), at least one gable folder (25) for folding a fin seam (17) in the gable region of the packs (16), and at least two lug folders (26A, 26B) for folding lugs (15) in the gable region of the packs (16). In order to make it possible for the gable to be formed quickly and reliably even in the case of packs (16) with a sloping gable, it is proposed that both the gable folder (25) and the lug folders (26A, 26B) are mounted in a movable manner relative to the conveying device (19) and the packs (16) transported thereby. An illustration and a description are additionally given for a method for forming the gable surfaces of packs (16) with a sloping gable.

Description

Apparatus and method for forming the gable surfaces of packages with sloping gables

The invention relates to a device for shaping the gable surfaces of

Angled gable packaging comprising: a conveyor having cells attached thereto for receiving the packages, at least one gable folder for folding a fin seam in the gable area of the packages, and at least two earmolds for folding ears in the gable area of the packages.

The invention also relates to a method for forming the gable surfaces of oblique gable packages, comprising the following steps: a) providing packages with sloping gables, b) folding the fin seam in the gable area of the packages through a gable folder, and c) folding the ears in the Gable area of the packaging by two ear-butterflies. Packaging can be done in different ways and in different ways

Materials are produced. A widespread possibility of production consists in producing from the packaging material a blank usually having fold lines (also called "creasing lines"), from which, by folding and further steps, first a packing jacket and finally a packaging is produced. In this way, the blanks or packing shells can be produced in a different location than the folding and filling of the packaging shells takes place.As a material often composites are used, for example, a composite of several thin Layers of paper, cardboard, plastic or metal

especially in the food industry. Packages which are produced from blanks are known, for example, from WO 2009/141389 A2 and DE 38 35 390 A1. These packages have predominantly gable surfaces which rise on both sides at an identical angle to the center and are thus symmetrically shaped. Therefore, the fin seam forms - at least before it is folded - the highest point of the packaging.

One challenge in the production of such packages is to apply protruding areas such as seams or "ears" to the packaging, which is still quite possible with parallelepiped packages, a machine for which is known, for example, from EP 0 061 663 A2.

Cuttings can also be used to produce packages with asymmetrical gables - in other words oblique gables. Such packages are known, for example, from WO 2009/030910 A2 and from EP 2 468 641 B1. In these packages, the creation of protruding areas is particularly difficult, since in such inclined gable packaging often not the fin seam, but the trailing edge of the gable forms the highest point of the package. As a result, the fin seam is more difficult to access for tools.

In particular, the fin seam in such packaging can not be created by a fixed tool on which the packaging is passed.

In EP 2 468 641 B1, the packaging is formed on a rotatable mandrel wheel with several stations. The folding of the ears takes place initially by fixed rails, past which the packages are passed, and then by means of movable folding tools. The fin seam in the gable area of the packaging is folded over by pushing the packaging with the gable ahead between two fixed supports until the fin seam abuts against a likewise fixed and oblique stop and is folded over (paragraph [0068]). A disadvantage of this procedure lies in the high

constructive effort. Because the already filled and sealed packaging must be solely for the purpose of shaping of a specially for this purpose be provided mandrel wheel. Another disadvantage is that most folding operations take place on fixed folding tools, where the packaging is passed. This leads to unwanted accelerations of the packaging and its delicate content.

Against this background, the invention is based on the object, also in

Packaging with sloping gables to allow fast and reliable shaping of the gable. This object is achieved in a device according to the preamble of patent claim 1, characterized in that both the gable and the ear moth are movably mounted relative to the conveyor and the packaging transported therewith. The device is a device for molding the

Gable surfaces of packaging with sloping gable, in particular with continuous sloping gable. In particular, the fin seam and the ears in the gable area of the packaging are (re-) formed. The packaging is preferably a food packaging made from a composite material. The composite material may comprise a plurality of thin layers of paper, cardboard, plastic or metal. The device initially comprises a conveyor with cells attached thereto for receiving the packages. By a

Conveyor (for example, a conveyor belt, a conveyor belt or a transport chain) high tensile forces can be transmitted, which allow a plurality of packing coats at constant intervals to each other

transport. The cells serve to accommodate the packaging coats. The

Packungsmäntel can be held both by a positive connection and by a non-positive connection in the cells. The

Conveyor is preferably arranged in a horizontal plane. The device also comprises at least one gable folder for folding a

Fin seam in the gable area of the packaging. Preferably, the gable folder centrally above the conveyor and the packages transported thereon. In addition, the device comprises at least two earflaps for folding ears in the gable area of the packages. Preferably, the two are

Moth above the conveyor and transported thereon

Packaging arranged on both sides next to the pediment.

According to the invention, it is provided that both the gable folder and the

Upright relative to the conveyor and thus transported

Packaging are movably mounted. In other words, the pediment and the ear-butterfly should be rotatable, pivotable, displaceable or otherwise movably mounted. By this constructive measure, it is possible that the required relative to the shaping relative movement between the folding tools (ie the gable and the ear folds) and the packaging is achieved by a movement of the folding tools and not by a movement of the packaging. This has the consequence that the packaging does not need to be moved during shaping, so that the conveyor can stand still. It is therefore an intermittent, intermittent operation of the conveyor possible. The design with stationary packaging has the advantage of a particularly simple filling of the packaging, since the filling does not need to be moved. Another advantage is that can be formed by movably mounted folding tools and packaging, where not the fin seal, but the rear edge of the gable form the highest point of the packaging. The folding tools can also be used to form other areas of the gable, such as the curved leading edge of the gable, in addition to flipping the fin seam and engaging the ears.

According to one embodiment of the device, it is provided that the gable folder is movably mounted in a plane, in particular in a plane through the

Transport direction and the direction of the packaging is formed. Thus, the gable-hair folder should not be able to be displaced linearly, but should have an at least two-dimensional mobility. In the movement plane can the giebelfalter perform translation movements, rotational movements or combinations of both (superimposition of translational and rotational movements). Preferably, the plane of movement of the pediment by the age

Transport direction and the direction of the packaging formed.

Another embodiment of the device provides that the ear moths are movably mounted in a plane, in particular in a plane through the

High direction and the transverse direction of the packaging is formed. The moths should not be able to be moved linearly, but have an at least two-dimensional mobility. In the plane of movement, the earflaps can perform translational movements, rotational movements, or combinations of both (superposition of translation and translation)

Rotational movements). Preferably, the plane of movement of the earflaps is formed by the vertical direction and the transverse direction of the packages.

According to a development of the device, it is proposed that the gable folder is arranged between the two ear folds. Preferably, the gable folder and the ear folders are arranged above the conveyor and the packages transported thereon. By arranging the gable folder between the two ear folds, a particularly compact design is achieved. This is particularly advantageous in installations where multiple parallel rows of packages are processed simultaneously. In addition, it has been found in experiments that the gable can reliably transfer the fin seam even if it does not cover the entire width of the fin seam, but about the width of the packaging (without protruding ears) covers.

With regard to the gable folder is provided in a further embodiment of the device that the gable folder is mounted so movable that he

Floss seam in the gable area of the packaging can move in the direction of the transport direction of the packaging. This should also be possible if the sloping gables of the packaging increase in the direction of transport; the This is achieved constructively in that the gable folder is not only movable in the vertical direction, but is also movably mounted in the direction of transport of the packages Movement component in the direction of the transport direction of the packaging have to be able to move the fin seam in this direction.

A further embodiment of the device is characterized by at least two, in particular at least four gable folders for folding a fin seam in the gable area of the packages, and at least four, in particular at least eight, ear folds for folding ears in the gable area of the packages, wherein one gable folder and two ear folders each form a unit to form a packaging. By this configuration it is achieved that a plurality of packages can be processed simultaneously. For this purpose, for example, a plurality of parallel conveyor belts may be provided. Preferably, each row of packages to be processed is associated with a gable-folder and two ear-trap unit. By a unit is meant a group of folding tools arranged to handle the same package.

To this embodiment is further proposed that all gables

are arranged side by side and connected to each other, and that all earflaps are arranged side by side and connected to each other. All gables should therefore be connected to each other, for example by a common rail, to which all gables are attached. Likewise, everyone should

Earflaps be interconnected; This can also be done by attachment to a common rail. The connection of the gables has the advantage that all gables can be moved synchronously by a common drive. Likewise, all earflaps can be moved synchronously due to their connection by a common drive. The object described at the beginning is also achieved by a method for shaping the gable surfaces of packages with an inclined gable. The method comprises the following steps: a) providing packages with sloping gables, b) folding the fin seam in the gable area of the packages through a gable folder, and c) folding the ears in the gable area of the packages by two ear moths. The method is characterized in that in steps b) and c) both the gable folder and the ear folders are moved relative to the conveyor and the packages transported therewith. The provision of the packages can be carried out in particular by a conveyor in the form of a conveyor belt or a conveyor belt or a transport chain with cells attached thereto for receiving the packages. The conveyor belt or the

Transport belt or the transport chain is preferably arranged in a horizontal plane. As already described in connection with the device, the required relative to the shaping relative movement between the

Folding tools (ie the gable and the earfolds) and the packaging by a movement of the folding tools and not by a movement of the

Packaging can be achieved. This has the consequence that the packaging does not need to be moved during the shaping, which enables an intermittent, cyclic operation of the conveyor. Shaping at rest

Packaging has the advantage that the filling can be carried out at a standstill packaging and also allows the processing of packaging, where not the fin seam, but the rear edge of the pediment, the highest point of the

Form packaging. Preferably, the method is carried out with a device according to one of claims 1 to 7.

According to one embodiment of the method it is provided that the packages are moved by a conveyor with cells attached thereto. As has already been described in connection with the device, can by a conveyor (for example, a conveyor belt, a

Conveyor belt or a transport chain) high tensile forces are transmitted, which allow a plurality of packing coats at constant intervals to each other transport. The cells serve to accommodate the packaging coats. The

Conveyor is preferably arranged in a horizontal plane.

According to a development of the method, it is provided that the packages are moved intermittently. An intermittent, that is, tact-wise operation has the advantage that the packaging is temporarily stopped and can be processed more precisely in this phase. Another advantage is that the tools that handle the packages do not need to be moved along with the packages.

A further embodiment of the method provides that the packages stand still during step b) and during step c). The steps b) and c) are used to flip the fin seam and create the protruding ears. These steps should be carried out as precisely and quickly as possible without damaging or deforming the packaging. These requirements can be included

stationary packaging easier than continuously

moving packaging.

According to a development of the method, provision is made for step b) to be carried out before step c). Alternatively or additionally, it is provided that step b) and step c) overlap in time. Preferably, the fin seam is folded over (step b) before the ears are applied to the package (step c). An advantage of this step sequence is that the ears can be applied more easily when the fin seam is already folded. This is because the fin seam also extends to the area of the ears. Nevertheless, a temporal

Intersection of both steps may be provided. In particular, the application of the ears can already be started before the folding of the fin seam is completely completed. This allows the fastest possible gable formation and thus short cycle times. According to a further embodiment of the method it is provided that the

Giebelfalter folds the fin seam in the gable area of the packaging in the direction of the transport direction of the packaging. This should also be possible if the sloping gables of the packaging increase in the direction of transport; The fin seam should therefore be turned "upwards." This is made possible by the fact that the gable folder is not moved in the vertical direction alone but is also moved in the direction of the transport direction of the packaging

Direction of movement of the gable-folding should therefore (at least also) one

Movement component in the direction of the transport direction of the packaging have to be able to move the fin seam in this direction.

According to a development of the method, it is finally provided that the gable surfaces of at least two, in particular of at least four packages are formed simultaneously. Through this development it is achieved that several packages can be processed simultaneously. For this purpose, for example, a plurality of parallel conveyor belts may be provided. Preferably, each row of packages to be processed is associated with a gable-folder and two ear-trap unit. Under a unit is a group of

Folding tools understood that are arranged so that they can handle the same packaging.

The invention will now be described with reference to a preferred one

Embodiment illustrative drawing explained in more detail. In the drawing show:

1A shows a blank for folding a packing jacket,

FIG. 1B shows a packing jacket which is made from the blank shown in FIG. 1A

is formed, in the flat folded state in a front view, FIG. 1C: the packing jacket from FIG. 1B in a rear view, FIG.

1D: the packing jacket of FIGS. 1B and 1C in the unfolded state, FIG. 1C: the packing jacket of FIGS. 1B to 1D with a closed bottom, FIG.

Fig. 1F: the packing jacket of Fig. 1B to Fig. IE with pre-folded

Gable surfaces, Fig. IG: a package which is shown in Fig. 1B to Fig. 1F

Packing jacket is made, with unformed gable,

Fig. 1H: the packaging of Figure IG with molded gable, Fig. 2: a system for filling and closing of packaging in one

Side view, a device 24 according to the invention for shaping the gable surfaces of packages with sloping gables in an open position in side view,

3B: the apparatus of FIG. 3A in a front view, a device 24 according to the invention for forming the gable surfaces of packages with sloping gables in a half-closed position in side view,

FIG. 3D shows the device from FIG. 3C in a front view, FIG. Fig. 3E: a device 24 according to the invention for molding the gable surfaces of packages with sloping gable in a closed position in side view, and Fig. 3F: the device of Fig. 3E in a front view.

Fig. 1A shows a blank 1 for folding a packing jacket. The blank 1 may comprise a plurality of layers of different materials, for example paper, cardboard, plastic or metal, in particular aluminum. The blank 1 has a plurality of fold lines 2, which are intended to facilitate the folding of the blank 1 and divide the blank 1 into several areas. The blank 1 can be divided into a lateral surface 3, bottom surfaces 4, gable surfaces 5 and a sealing surface 6. The bottom surfaces 4 and the gable surfaces 5 each comprise rectangular surfaces 7, 7B, 7G and triangular surfaces 8. The gable surfaces 5 also comprise a centrally arranged gable main surface 9. The lateral surface 3 extends, with the exception of FIG

Sealing surface 6 - over the entire width of the blank 1. From the blank 1, a packing jacket can be formed by the blank 1 is folded such that the sealing surface 6 is connected to the opposite end of the lateral surface 3, in particular welded.

The blank 1 shown in FIG. 1A has two in the area of the lateral surface 3

Fake fold lines 10 on. The two dummy fold lines 10 run parallel to one another and extend through a contact point SB of three adjacent ones

Triangular surfaces 8 of the bottom surface 4 and by a contact point SG of three adjacent triangular faces 8 of the gable surfaces 5. By the Scheinfaltlinien 10, the lateral surface 3 in an inner portion 3A and in two outer

Divisions 3B shared. The inner portion 3A lies between the two

Apparent fold lines 10 and the outer portions 3B are outside the two dummy fold lines 10th While the bottom surface 4 has a length L4 which is constant over the entire width of the blank 1, the length of the gable surface 5 assumes different values. Adjacent to the outer portions 3 B of the lateral surface 3, the

Gable surface 5 a reduced length L5 _m in on. Adjacent to the inner

Partial area 3A of the lateral surface 3 (ie in the region of the main gable surface 9), the gable surface 5, however, an enlarged length L5 _ma x on. This configuration results in that the inner portion 3A has a lower height than the outer portion

Subareas 3B. For the pack to be produced, this results in an inclined gable area sloping diagonally forward.

The rectangular areas 7B in the bottom area of the blank are rectangular. The two outer rectangular surfaces 7G in the gable area of the blank are also rectangular. The central gable main surface 9, however, is not exactly rectangular; Instead, it is formed with an at least partially convexly curved front edge 11. In the upper corner regions of the main gable surface 9, two curved embossed lines 12 are visible, which give the gable main surface 9 a design reminiscent of an ellipse. Centrally within the gable main surface 9 a circular weakening line S is shown. This is preferably a circular recess in the carrier material, which is covered with the remaining plastic and possibly Al layers of the composite material, a so-called "over-coated hole." Its diameter can correspond to the size of the cutting element of one there

be adapted to be attached pouring or be made relatively small to allow the penetration of a drinking straw. The bottom surfaces 4 have two corner points E4 and the gable surfaces 5 have two corner points E5. The corner points E4, E5 represent corner points of the packaging to be produced from the blank 1. Each vertex E4 of a bottom surface 4 is assigned a corresponding vertex E5 of a gable surface 5, which in each case is that vertex E5 which, when the packaging is stationary, above this vertex E4 is arranged. By a respective two Corner vertices E4, E5 each have a fold line 2 ', each for forming a rear (vertical extending) edge of the packaging to be produced. In the blank 1 shown in Fig. 1A, however, as well as the one made therefrom

Packing jacket and the packaging produced therefrom - only two continuous fold lines 2 'present. In contrast, no fold lines are provided between the further corner points of the bottom surfaces 4 and the corresponding corner points of the gable surfaces 5 - that is, on the front lateral surface 3A.

Fig. 1B shows a packing jacket 13, which is formed from the blank 1 shown in Fig. 1A, in the flat folded state in a front view. The already in the

Portions of the packing jacket described in connection with FIG. 1A are provided with corresponding reference symbols in FIG. 1B. The packing jacket 13 has been formed from the blank 1 by two steps. First, the blank 1 is folded along the two dummy fold lines 10. Subsequently, the two partial areas 3B (left) and 3B (right) of the lateral surface 3 in the area of the sealing surface 6

connected together, in particular welded, whereby a (in Fig. 1B hidden) longitudinal seam 14 is formed. The packing jacket 1 thus has a circumferential, circumferentially closed structure with an opening in the region of

Bottom surfaces 4 and with an opening in the area of the gable surfaces 5. In the

Front view, the inner portion 3A of the lateral surface 3 is visible, which is bounded on both sides by the dummy fold lines 10. The remaining sections 3B of

The lateral surface 3 are concealed on the rear side of the packing jacket 13 and therefore in FIG. 1B.

FIG. 1C shows the packaging jacket 13 from FIG. 1B in a rear view. The areas of the already described in connection with FIGS. 1A and 1B

Packungsmantels are provided in Fig. IC with corresponding reference numerals. In the rear view, the two outer portions 3 B of the lateral surface 3 are visible, which are interconnected by the longitudinal seam 14 and which is bounded on both sides by the dummy fold lines 10. The front portion 3A of the lateral surface 3 is concealed on the front side of the package shell 13 and therefore in Fig. IC. Fig. 1D shows the packing jacket 13 of Fig. 1B and Fig. IC in the unfolded state. The regions of the packing jacket which have already been described in connection with FIGS. 1A to 1C are provided with corresponding reference symbols in FIG. 1D. The unfolded state is achieved by a folding back of the packing jacket 13 along the dummy fold lines 10 passing through the lateral surface 3. The

Refolding occurs about 180 °. The refolding along the dummy fold lines 10 has the consequence that the two partial regions 3A, 3B of the lateral surface 3 adjoining the dummy fold line 10 no longer lie flat on one another, but are arranged in the same plane. The packing jacket 13 is therefore folded along the apparent fold lines 10 only in its flat state (FIG. 1B, FIG. 1C); In the unfolded state (FIG. 1D), the packing jacket 13 (as well as the packaging to be produced therefrom) is no longer folded along the apparent fold lines 10. Therefore, the term "sham" fold lines 10. In Fig. IE, the packing sheath of Fig. 1B to Fig. 1D is shown with closed bottom. The areas of the packing sheath already described in connection with Fig. 1A to Fig. 1D are shown in FIG. For example, the bottom may be closed while the unfolded packing jacket 13 is pushed onto a mandrel of a mandrel wheel

Triangular surfaces 8 folded inwards before the lower rectangular surfaces 7B are folded inwards. The folded surfaces are then welded by the action of pressure and temperature. FIG. 1F shows the packing jacket from FIGS. 1B to IE with pre-folded. FIG

Gables. The regions of the packing jacket already described in connection with FIGS. 1A to IE are provided with corresponding reference symbols in FIG. 1F. The pre-folded state denotes a state in which the fold lines 2 have been prefolded in the region of the gable surfaces 5. The rectangular area 7G and the main gable surface 9 are folded inward during the prefolding and later form the gable of the packaging. The triangular faces 8 are at the pre-fold on the other hand folded outwards and form protruding areas of excess material, which are also referred to as "ears" 15 and in a later

Manufacturing step - for example by gluing - to the lateral surface 3 of the

Packaging to be created.

Fig. IG shows a package 16 which is shown in Fig. 1B to Fig. 1F

Packing jacket 13 is made, with unformed gable. The already in the

In connection with FIG. 1A to FIG. 1F described areas of the packaging are provided in Fig. IG with corresponding reference numerals. The packaging 16 is shown after welding, ie in the filled and closed state. Due to the increased length L5 _ma x of the main gable surface 9 in its adjacent to the inner portion 3A of the lateral surface 3 region and the reduced length L5 _m in the gable surface 5 in their to the outer portions 3B of

On this gable main surface 9, the package 16 may be provided with a pouring element which extends almost to the forward curved leading edge 11. In the area of the gable surfaces 5, a fin seam 17 is produced after closure. In FIG. 1G, the ears 15 and the fin seam 17 are protruded. The ears 15 are applied in a later manufacturing step, such as by adhesive bonding, whereby the fin seam 17 automatically remains in a flat position.

In Fig. 1H, the package 16 of FIG. IG with a shaped pediment, in particular with applied ears 15 is shown. The areas of the packaging already described in connection with FIGS. 1A to 2G are shown in FIG. 1H with corresponding ones

Provided with reference numerals. In addition to the ears 15, the fin seam 17 is also applied to the packaging 16. The upper, arranged in the region of the gable surface 5 ears 15 are folded down and placed flat against the lateral surface 3.

Preferably, the ears 15 are glued or welded to the lateral surface 3. The packaging 16 shown in FIG. 1H has no folded edges in the area of the front lateral surface 3A. The forwardly curved front of the packaging can be in the horizontal section shown on the right by the plane E of the packaging clearly recognize. The straight fold lines 2 'at the rear packing edges extend from the lower corner points E4 to the upper corners E5.

Fig. 2 shows a system 18 for filling and closing of packages in a side view. The system 18 comprises a circulating conveyor 19 with cells 20 attached thereto for receiving packaging sheaths 13. The packaging shells 13 are inserted into the cells 20 in the state shown in FIG. 1 IE, that is to say with already closed bottom surfaces. The system 18 comprises a device 21 for prefolding the gable surfaces, a device 22 for filling the gable surfaces

Packing shells, a device 23 for closing the packaging shells and a device 24 for forming the gables of the packages 16. In the gable surface folding device 21, the gable surfaces are prefolded in the manner already described, the packing shells 13 being those shown in Fig. 1F Take shape. In the apparatus 22 for filling the packaging coats, the packaging coats 13 are filled with contents. Subsequently, the packing shells 13 are closed in the device 23 for closing the packing shells, taking the shape shown in Fig. IG. After closing, the

Packungsmäntel 13 referred to as packaging 16. After that, the

Packages 16 are processed in the device 24 for forming the gables of the packaging so that they assume the shape shown in Fig. 1H. The processing includes a folding of the fin seam 17 and an application of the ears 15. Im

Following this, the packaging 16 from the cells 20 of

Conveyor 19 taken. Referring now to Fig. 3A, there is shown a side view of an apparatus 24 for forming the gable surfaces of oblique gable packages in an open position. Fig. 3B shows the device 24 of Fig. 3A in a front view. The device 24 comprises three folding tools: a centrally located gable folder 25 and two adjacent moth flaps 26A, 26B. The gable folder 25 is movably mounted and serves to flip the fin seam 17. The two

Earsheets 26A, 26B are also movably mounted and serve the two Turn down ears 15. The moveable support of the gable retardant 25 has the advantage that the fin seam 17 can be easily reached, although it may be located lower than the highest edge of the package 16. The gable folder 25 is mounted so that it can be moved in a plane that through the

Transport direction of the packaging 16 longitudinal direction (in Fig. 3A to Fig. 3F shown as X-direction) and the high direction (in Fig. 3A to Fig. 3F shown as Y-direction) is formed. The two ear-butterflies 26A, 26B, on the other hand, are supported so that they can be moved in a plane represented by the transverse direction (shown as Z-direction in FIGS. 3A to 3F) and the vertical direction (in FIGS. 3A to 3F). 3F shown as Y-direction) of the packages 16 is formed. The directions of movement of the folding tools 25, 26A, 26B are shown schematically by double arrows. The open position of the folding tools shown in FIGS. 3A and 3B is characterized in that none of the folding tools touches the package 16 and that the package 16 can be moved between the folding tools without collision in the direction of transport T.

In Fig. 3C, a device 24 according to the invention for molding the gable surfaces of packages with sloping gable in a semi-closed position in side view is shown. FIG. 3D shows the device 24 from FIG. 3C in one

Front view. The areas of the device already described in connection with FIGS. 1A to 3B are shown in FIGS. 3C and 3D with corresponding ones

Provided with reference numerals. The closed position of the folding tools shown in FIGS. 3C and 3D is characterized in that the gable folder 25 has been pivoted downwards and thereby the fin seam 17 in the direction of the

Transport direction T has transferred. By contrast, the two ear-butterflies 26A, 26B have not yet been moved and occupy the same position as in FIG. 3A and in FIG. 3B.

In Fig. 3E is an inventive device 24 for molding the gable surfaces of packaging with sloping gable in a closed position in

Side view shown. Finally, FIG. 3F shows the device 24 from FIG. 3E in a front view. Those already described in connection with FIGS. 1A to 3D Portions of the device are provided with corresponding reference numerals in FIGS. 3E and 3F. The closed position of the folding tools shown in FIGS. 3E and 3F is characterized in that both the gable folder 25 and the two ear folders 26A, 26B have been pivoted downwards. In the process, the gable folder 25 has folded the fin seam 17 in the direction of the transport direction T and the two ear folders 26A, 26B have folded the ears 15 downwards and applied them to the outer surface 3 of the packaging 16.

LIST OF REFERENCE NUMBERS

1: cut

2, 2 ': fold line

3: lateral surface

3A, 3B: partial area (of the lateral surface 3

4: floor area

5: gable area

6: sealing surface

7, 7B, 7G: rectangular area

8: Triangular area

9: Gable main surface

10: dummy fold line

11: leading edge

12: stamping line

13: packing jacket

14: longitudinal seam

15: ear

16: packaging

17: Fin seam

18: Plant

19: conveyor

20: cell

21: Pre-folding device

22: device for filling

23: Device for closing

24: device for gable forming

25: gablewing

26A, 26B: ear moth

Corner point (the bottom surface 4) E 5: corner point (the gable surface 5)

L4: length (the bottom surface 4)

L5min- minimum length (gable area 5)

L5max- maximum length (gable area 5)

S: weakening line

SB: touch point (the bottom surface 4)

SG: touch point (gable area 5)

T: transport direction X: longitudinal direction

Y: upright

Z: transverse direction

Claims

March 10, 2017

claims

A device (24) for forming the gable surfaces of oblique gable packages (16), comprising:

a conveyor (19) with cells (20) attached thereto for receiving the packages (16),

- at least one gable folder (25) for folding a fin seam (17) in the gable area of the packages (16), and

at least two ear moths (26A, 26B) for folding ears (15) in the

Gable area of the packaging (16),

characterized in that

both the gable folder (25) and the ear folders (26A, 26B) are movably mounted relative to the conveyor (19) and the packages (16) transported therewith. 2. Device (24) according to claim 1,

characterized in that

the gable folder (25) is movably mounted in a plane, in particular in a plane formed by the transport direction (X) and the vertical direction (Y) of the packages (16).

3. Device (24) according to claim 1 or claim 2,

characterized in that

the earmolds (26A, 26B) are movably mounted in a plane, in particular in a plane formed by the vertical direction (Y) and the transverse direction (Z) of the packages (16).

4. Device (24) according to one of claims 1 to 3, characterized in that

the gable folder (25) is arranged between the two ear folds (26A, 26B).

Device (24) according to one of claims 1 to 4,

characterized in that

the gable folder (25) is mounted such that it can transfer the fin seam (17) in the gable area of the packages (16) in the direction of the transport direction (T) of the packages (16).

Device (24) according to one of claims 1 to 5,

marked by

- At least two, in particular at least four gable folders (25) for folding a fin seam (17) in the gable area of the packages (16), and

at least four, in particular at least eight, ear folders (26A, 26B) for folding ears (15) in the gable area of the packages (16),

- Each one gable folder (25) and two ear folders (26 A, 26 B) form a unit for processing a package (16).

Device (24) according to claim 6,

characterized in that

all the gables (25) are arranged side by side and connected to each other, and that all ear folders (26A, 26B) are arranged side by side and connected to each other.

A method of forming the gable surfaces of oblique gable packages (16), comprising the steps of:

a) providing packages (16) with sloping gables,

b) folding the fin seam (17) in the gable area of the packages (16) by a gable folder (25), and c) folding the ears (15) in the gable area of the packages (16) by two

Moths (26A, 26B),

characterized in that

in steps b) and c), both the gable folder (25) and the ear folders (26A, 26B) are moved relative to the conveyor (19) and the packages (16) transported therewith.

9. The method according to claim 8,

characterized in that

the packages (16) are moved by a conveyor (19) with cells (20) attached thereto.

10. The method according to claim 8 or claim 9,

characterized in that

the packages (16) are moved intermittently.

11. The method according to any one of claims 8 to 10,

characterized in that

the packages (16) stand still during step b) and during step c).

12. The method according to any one of claims 8 to 11,

characterized in that

Step b) is carried out before step c).

13. The method according to any one of claims 8 to 12,

characterized in that

Step b) and step c) overlap in time.

14. The method according to any one of claims 8 to 13,

characterized in that the gable folder (25) folds the fin seam (17) in the gable area of the packages (16) in the direction of the transport direction (T) of the packages (16).

Method according to one of claims 8 to 14,

characterized in that

the gable surfaces of at least two, in particular at least four packages (16) are formed simultaneously.