EP3459867A2 - Method and machine for the production of filled film bags with longitudinal and transverse seals from a non-dimensionally stable film sheet - Google Patents

Abstract

In order to produce film pouches more flexible, the invention proposes, instead of the continuous flow pack process individual foil sheets (100) to transport, in particular by means of independently movable transport carriage (120) of a flexible transport device (111), and further to fill up, and to seal foil pouches.

Description

I. Field of application

The invention relates to a method and an apparatus for producing both longitudinally and transversely sealed, with at least one product each filled, foil bags from a particular flat state in the initial state.

II . Technical background

Such filled, all-round tightly sealed, foil bags are produced in large numbers as a tubular bag in the so-called flow-pack method.

In this case, a sequence of products to be packaged in a transport direction is transported one behind the other at a distance and a wrapped in the same direction and at the same speed film web viewed in the direction wrapped around the product stream and closed with a running in the transport direction longitudinal seam with the film running to a film tube.

This film tube produced in a continuous process is subdivided downstream into individual tube bags by transverse sealing seams which are spaced apart in the direction of travel while the film tube is running, and these can then be separated from one another.

This flowpack method has the advantage that high packaging rates can be achieved because of the continuous flow.

The disadvantage of the method, however, lies in the low variability of the process, since all operations carried out in the run, such as film feed, arranging / placing the products on a transport device, producing the longitudinal seam, producing the transverse seam at a matching speed.

If there are deviations from this, for example due to increasing or decreasing product supply, an adaptation of the subsequent processing steps is possible only in designs with increased design effort.

One reason for this is that the production of the longitudinal sealing seam usually takes place by means of ultrasonic sealing, while the transverse sealing seams can often not be sealed by means of ultrasonic sealing because of the transversely changing number of film layers, but by means of pressed against each other, heated hot-sealing jaws ,

These held at a desired temperature hot-sealing jaws require a precise sealing time to be complied with because too short sealing time, the seal can be leaking and too long sealing time, the foil material can be melted and damaged or destroyed.

Since the cross sealing is usually done by means of two mutually running transverse sealing rolls on the circumference of the heat-sealing jaws, the sealing time increases with reduced throughput speed of the film tube and thus reduced speed of the transverse seal rollers in an inadmissible way.

A further disadvantage is the supply roll for the film to be provided above or below the product stream, which presents problems in particular for the change of the supply roll and the joining of the end of a first film web to the beginning of a new film web which is located on a new supply roll Losses of products and tubular bags during the change causes.

On the other hand, it is generally known for the production, filling and sealing of packages to move and process these packages on a transport device in the transport direction along successive workstations.

If the packaging is, for example, a cardboard packaging, an appropriate carton blank is usually placed on the transport device and, for example, in the successively approached workstations, first the carton is erected to a three-dimensional box which is still open on the top side, glued to the carton filled with products, the still open top of the box closed by placing a lid or flipping a lid section of the box, and usually glued.

The individual processing operations, including filling with products, are performed at the individual workstations by means of robots positioned there on the transport path.

A transport device known in this context consists of individual transport carriages, which can be moved independently of one another in the transport direction along a guideway - that is to say they can be controlled in their speed independently of the other transport carriages, can also be stopped and moved back and forth - as long as this does not lead to collisions with leading on the same guideway or subsequent transport carriage leads.

Movable independently of one another also means that it can be moved independently of one another on the same guideway, and can not be moved independently of one another at individual points of the camouflage device, but can be moved independently of one another over the entire length of the transport path, whereby collisions of the transport carriages are of course to be avoided.

Under independently movable transport carriages of a transport device is also understood that each of the transport carriage and at any time regardless of the movements of the other transport carriage can be moved in terms of direction, speed and also reducing the vehicle speed to zero. Preferably, the transport carriage can only be moved forwards or backwards in a single transport direction.

In particular, the guideway is arranged on a web body, which also runs in the transport direction and, viewed in the transport direction, carries not just one but a plurality of guideways, for example one on its underside and one on its top side.

Since the track body consists of a plurality of modules which adjoin one another in the transport direction, individual track body modules of this kind can be used. in particular, the starting module and the end module to be pivoted about a pivot axis extending in the transport direction, so that the example previously upper guide track is then located on the underside of the track body and vice versa.

In this way, a transport carriage located on such a pivotable sheet-body module can be pivoted from the upper to the lower guide track, and subsequently be returned to the starting module along the lower guide track of the entire transport device, in particular in the empty state. It goes without saying that for this purpose the transport carriage secured to the guideway against falling, in particular positively secured, must be.

The advantage of such picker roads, in particular in conjunction with a transport device with independently movable transport carriage, consists in a high flexibility, depending on the example product replenishment or other factors, not only the speed of the transport carriage in the process, but also their residence in individual workstations and the like free are selectable.

In such picker roads, however, the packaging material must be at least partially dimensionally stable and intrinsically stable.

III. Presentation of the invention a) Technical task

It is therefore the object of the invention, a method and an apparatus for producing longitudinally and transversely sealed filled foil bags to provide, which has a high efficiency and yet allows a flexible manufacturing process.

b) Solution of the task

This object is solved by the features of claims 1 and 11. Advantageous embodiments will be apparent from the dependent claims.

With regard to the method, the object is achieved in that the film bag not from a running film web - and not necessarily with the intermediate step of producing a film tube - are made, but from individual, finite film sheets, the only by appropriate deformation and Sealing areas of this film sheet against each other are formed to the film bag, preferably so that the entire film sheet is used for the film bag and no remainder or waste left.

For this purpose - similar to the production of form-containing packaging such as cardboard packaging - but not form-containing foil sheets each preferably received individually on one of several independently movable in a transport device transport carriage, so usually placed on the transport carriage on the slides Sheet deposited at least one product to be packaged.

Under a non-film sheet is understood to form that support the film sheet only in a central region, especially only under the center of gravity of the film sheet, the edges of the film sheet gravity down hanging, since the film sheet does not possess sufficient intrinsic stability to maintain its level position. It is preferably assumed that the film sheet over its entire extent - in particular along its main plane - has the same stability and / or the same thickness and / or consists of the same material.

In the next step, by placing and sealing two regions of this film sheet against each other, a first sealed seam is produced in a first sealing step.

In another, in particular the next step, a second sealing seam is produced which preferably runs transversely to the first sealing seam and is likewise preferably produced by placing and sealing two regions of the same film sheet against one another, so that a filled and circumferentially tightly sealed film bag is produced.

From one to the next processing step, the film sheet is - usually only a sheet-sheet on a transport carriage, in some cases, several - transported by the transport carriage in the transport direction from one to the next processing station where performed the individual processing steps become.

In this way, different forms of foil pouches can be made:
A first bag shape is a tubular bag:
In this case, as the first sealing step to be sealed against each other two areas two opposite, preferably extending in the transport direction of the transport device, edge regions of the film sheet selected, which are sealed against each other, preferably over their entire length.

Preferably, this can be done in a continuous process, so while the transport carriage moves with the film sheet in the transport direction, in particular moves along a corresponding, usually stationary, sealing unit.

In the second sealing step, two opposite regions of the film tube formed by the first sealing step are placed against each other and sealed, preferably at each of the two ends of the film tube, the opposing regions of the closed-loop tube, which is thereby pressed flat in this area.

Preferably, the opposing-laying and sealing takes place over the entire width of the film tube, and if this takes place at both ends, thereby two second sealing seams are produced, each seal one end of the film tube tight and thereby a total sealed film bags is produced in the form of a tubular bag.

As a rule, when producing the first sealing seam, a fin is formed in the form of the two mutually juxtaposed and sealed edge regions which form the first sealed seam, in that, with regard to the cross section of the film tube produced thereby, this fin extends radially from the otherwise annular, approximately circular, closed cross section of the Foil tube protrudes outward.

This fin is folded up before the production of the second sealing seam to the outer periphery of the remaining film tube, so folded, in one of the two possible pivoting directions, so so in the subsequent Producing the second sealed seam, the transverse sealing seam, this transverse seam in the area of the folded-over fin from four layers of film, but apart from the fin only two layers of film.

In this case, it is preferably provided that, in the production of this second sealing seam, the folded-over fin is likewise welded to the other two foil layers, and not only the two other foil layers against each other in order to permanently hold the fin in the folded state on the circumference.

Preferably, after the at least one second sealing seam has been produced, the folded sealing fin is located in the width region of the product in the film bag, but it can also be provided that the fin is deliberately arranged outside this width region, ie viewed in the transport direction or in the direction of travel first seal seam viewed from the width range of the product contained therein pioneering.

Then, in some circumstances, it is also possible to dispense with folding the fin to the remainder of the bag tube, so that even in the finished state the fin protrudes radially from the rest of the finished sealed bag tube, which facilitates the production of the second sealed seam, the transverse seam Since this transverse seal then has only two layers of film in its entire course, which facilitates the control of the sealing process.

The second sealed seam is preferably not only transversely, but viewed in the plan view in particular made perpendicular to the first seal seam running. This can be achieved, for example, by making the second sealing seam running transversely to the transport direction.

In this case, the film sheet, in particular the film tube already produced, stand still in the transport direction and a sealing unit for producing the at least one second sealed seam are brought to the tubular bag, in particular in the transverse direction to the transport direction.

The other possibility is to produce the at least one second sealed seam extending in the transport direction.

For this purpose, in particular the film tube, preferably with the aid of the carriage on which it is located, is rotated so that the course direction of the second sealed seam to be produced then runs in the transport direction.

In this variant, it is possible to produce the second sealing seam, while the film sheet moves in the transport direction and is moved along a sealing unit.

The disadvantage is that while the structural complexity for the possibility of rotation of the film tube, in particular on the transporting transport carriage, is greater, on the other hand the advantage that the entire sealing process with all sealing seams in itself in the transport direction moving foil sheet or film Hose can be made.

Because the opposing-laying and sealing of the areas of the film sheet for producing the first seal seam and / or the flipping the seal fin can be done anyway, while the film sheet in the transport direction with the aid of preferably the transport carriage on which he arranged is, moves.

The folding of the sealing fin is preferably carried out in a Umlege unit having a Umlege-guide surface, which flips the fin when the film tube and thus the sealing fin moves along the transport direction by the Umlege unit.

A second bag form is a bag bag:
For such a bag-shaped bag, therefore, an open bag on one side, preferably upwards, is produced from the film sheet by two strip-shaped areas adjoining one another and being sealed in the first sealing step as two areas of the film sheet to be placed against each other and sealed. in particular one and the same edge region of the film sheet are selected, placed against each other and sealed. The two regions preferably each have half the length of the strip-shaped region, in particular the edge region, which is therefore preferably bent exactly in the middle of its length.

When this is done on the two opposite edge regions of the film sheet, two such first, preferably parallel, first seal seams are formed.

The selected strip-shaped regions of the film sheet can be in the transport direction or transversely thereto, in particular perpendicular thereto.

This creates a still open-topped bag, in which, however, already before the production of the least a first sealed seam applied to the film sheet product.

Whether the produced at least one first sealed seam then runs horizontally or vertically, ie the bag lies or stands, preferably also depends on the shape and position of the product enclosed by the bag:
Because the product is deposited on the film sheet so and / or the location of the first sealing seams provided so that the at least one first Sealing seam extends laterally outside the product in the direction in which the product does not have just its smallest extension direction, but in which it has its greatest extent.

In an approximately plate-shaped product, the first sealed seam should extend along one of the narrow sides of the plate shape.

If such a plate-shaped product placed on a narrow side standing on the foil sheet, the two are placed against each other to be sealed and sealed areas from the horizontal position of the foil sheet and sealed against each other and then form a bag with two upright sealing seams.

On the other hand, if such a plate-shaped product is placed with one of its main surfaces lying on the foil sheet, one of the two areas to be sealed against each other will be folded around the center of the strip-shaped area of which it is part, by 180 ° to the other area and sealed, so that the resulting at least one first sealed seam lying, that is arranged substantially horizontally, is arranged.

In order to close the bag, the open side of the bag is then sealed in a second sealing step by juxtaposing and sealing the two areas opposite and to be sealed on the open side on both sides of the bag opening, these two edge areas of the bag preferably being on the same Should end position, so preferably one side wall of the bag should not project beyond the other side wall, in particular not more than 1 mm, more preferably not more than 2 mm.

Preferably, in both forms of film bags to be produced, the processing steps are carried out on the film sheet and / or film tube and / or the film bag while it is on the carriage. Only in exceptional cases, the film is removed from the slide slide for processing.

The retention of the film sheet on the carriage is preferably carried out by means of suction of the film sheet on the carriage by means of negative pressure, wherein this holding, in particular suction, during the entire processing of the film takes place, so until the finished circumferentially sealed film pouch produced is, except that there is in between a removal of the film from the carriage.

Sealing is accomplished either by heat sealing a heat sealable film material, which must include at least one heat sealable coating, if the base material of the film itself is not heat sealable, or by gluing.

The heat-sealing may be effected by means of ultrasonic sealing or by means of heat-seal stamps which have been heated before sealing, preferably also during sealing, preferably by means of electrical energy.

Here, the sealing of sealing seams, which always have the same number of layers in their entire course, preferably carried out by means of ultrasonic sealing and / or the production of sealing seams, which changes the number of foil layers in their course, using hot-sealing jaws ,

On a transport slide and a plurality of foil sheets side by side, in particular in the transport direction of the transport carriage one behind the other, are placed.

Alternatively, only a foil sheet can be placed on the carriage. There are the two possibilities that arises as a possibility from the one foil sheet only a foil bag, so the entire material of the foil sheet is needed for the production of this one foil tube.

The other possibility is that from this film sheet - especially in the manufacture of hose bags - the production of the second sealing seams, in particular the transverse sealing seams, several times and in larger numbers, as needed for a hose bag, in the transport direction is carried out one behind the other and the resulting, still contiguous, tubular bags are separated from each other as a last step.

The film sheet can also extend laterally in the state laid on the transport carriage - ie in the transport direction of the transport carriage and / or in the transverse direction thereto - beyond the support surface of the transport carriage supporting it.

With regard to the machine for producing such longitudinally and transversely sealed, filled film bags, in particular according to the method described above, this object is achieved in that on the one hand a transport device with a independently along the transport device, in particular the guideways of the transport device, movable transport carriages present is, wherein the transport carriages have a holding device for holding at least one film sheet lying thereon.

• wenigstens eine Auflege-Station, an der ein nicht-formhaltiger Folien-Bogen als Verpackungsmaterial auf eine Auflage-Fläche des Transportschlittens aufgelegt wird,
• wenigstens eine Füllstation zum Auflegen wenigstens eines Produktes auf den auf dem Transportschlitten liegenden Folien-Bogen,
• wenigstens eine Aufrichte-Station zum dreidimensionalen Verformen des im Ausgangszustand im Wesentlichen ebenen Folien-Bogens zu einer dreidimensionalen Form.
• Wenigstens eine Siegelstation zum dichten Versiegeln des dreidimensional verformten Folien-Bogens zu einem dicht verschlossenen Folien-Beutel, indem sich das zuvor auf dem Folien-Bogen aufgelegte Produkt befindet.

Furthermore, the device comprises, along the transport direction, in particular the passage direction, successively a plurality of processing stations for producing the film bags, namely

• at least one lay-up station on which a non-form-retaining film sheet is placed as a packaging material on a support surface of the transport carriage,
• at least one filling station for placing at least one product on the film sheet lying on the transport carriage,
• at least one Aufrichte station for three-dimensional deformation of the initial state substantially flat foil sheet to a three-dimensional shape.
• At least one sealing station for tightly sealing the three-dimensionally deformed film sheet to a tightly sealed film bag by the previously applied to the film sheet product is.

Although the foil sheet itself is not dimensionally stable, that is not stable transversely to its main plane, it will rest through the usually flat bearing surface of the transport carriage on this level. Even if the film sheet protrudes laterally over the support surface and hanging there, this should still fall under the concept of a flat initial state of the film sheet.

In this case, the erecting station must be designed such that it is capable of deforming, in particular without additional stretching of the material of the film sheet, areas, in particular edge areas, of the film sheet against each other, and the sealing station must be formed be that she is capable of these juxtaposed areas, in particular one and the same foil sheet to seal tightly against each other.

In this case, the laying of the film sheet on the transport carriage and / or placing the product on the sheet lying on the carriage slide, preferably carried out by means of at least one robot.

With such a device, film bags can be made very variable, especially with regard to the size and the material of the film very different film bag, especially if the individual workstations and in particular the work devices used therein are adjustable in terms of different processing parameters.

With regard to the at least one transport carriage, the holding device for holding the applied film sheet is at least one vacuum cleaner, wherein the transport carriage preferably comprises its own vacuum pump in order to generate the required negative pressure for the at least one vacuum cleaner.

The considered in the plan view support surface of the transport carriage for the film sheet may be smaller than the laid on the transport slide foil sheet.

This can be used in particular to make elements such as guide surfaces for transferring regions of the film sheet and / or a sealing unit outside the support surface of the transport carriage to engage the film sheet.

The transport carriage preferably comprises an easily replaceable, in particular without tool exchangeable, in particular attachable, Format plate whose freely accessible from the outside side forms the support surface.

As a result, depending on the size of the required film sheet and / or the product to be packaged thereon adapted transport plates can be plugged onto the transport carriage, which allows a quick conversion of the device to another foil bag to be produced.

Preferably, the format plate relative to the rest of the transport carriage, so the main body of the transport carriage, or the entire transport carriage about a transversely, in particular perpendicular to the main plane of the format plate, or the support surface of the format plate extending pivot axis pivotally, preferably at least 90 °, in particular rotatable.

Thereby, the film bag lying on it or even film tube or even foil bag can be aligned so that the direction of extension of the next seal seam to be produced coincides with the transport direction or straight in the transverse direction thereto, depending on what the attacking the Sealing unit on the film is cheaper.

With regard to the erecting station, this is preferably arranged in the direction of passage through the device after the filling station, in which the product is placed on the film sheet.

In exceptional cases, for example in the case of a foil pouch in the form of a bag of pouches, the filling station can also be used after the erecting station and even after the first sealing station for producing the first sealing seams, ie after the film has been opened. Bag, be arranged in the device.

Preferably, the erection, ie the deformation of the film sheet in a three-dimensional shape, by means of guide surfaces, which are part of the erection station, which contact by traversing the film sheet portions of the film sheet and are shaped so that they relocate these areas to the desired position and, if necessary, keep them in this position.

With regard to the sealing station, at least one, but preferably two, sealing stations are provided in the direction of passage at a distance along the transport device.

Preferably, the sealing station comprises a sealing unit capable of forming a longitudinal sealing seam on a sheet of film passing through the sealing unit or along the sealing unit, moved by means of the transport carriage. The sealing unit is preferably stationarily positioned in the direction of travel on the transport device, but can approach the transport carriage in the transverse direction or move away from it.

The sealing station may further comprise a sealing unit capable of forming a transverse sealing seam running transversely to the direction of passage, horizontally or vertically, but then preferably on the foil sheet resting in the direction of passage through the sealing unit ,

Also, such a sealing unit is preferably arranged in the direction of passage stationary on the transport device, but in the transverse direction relative to the transport device, so in particular the transport carriage running thereon, designed to be movable.

The sealing unit may be an adhesive unit, but is preferably an ultrasonic sealing unit or heating-baking-sealing unit, since this requires no additional adhesive to be applied.

With regard to the lay-up station, this either comprises a storage container in which cut-to-size, finite foil sheets are stored, and individually removed therefrom and placed on the transport carriages, or a production unit for such foil sheets:
In such a manufacturing unit, the film sheets are produced as required from a supply roll, which is present in the manufacturing unit, by means of a film strip, which is withdrawn from the supply roll, by means of a separating device, in particular a cutting device, Sections of the film tape are produced.

Depending on the width of the film strip, such a cut-off film strip can directly have the dimensions of the desired film sheet or have a multiple of the dimensions of the required film sheets, so that then the film strip must be divided again into several film sheets which also happens within the manufacturing unit.

Of course, the reverse procedure is possible, namely to divide the withdrawn from the supply roll film strip in stripping into several juxtaposed narrower film strips, each having the width of a required film sheet and of these individual film strips such sections to separate, which correspond to the length of the desired foil sheet.

In this way, a separation of stacked in a reservoir foil sheets is avoided, which can cause problems just because of the static charge.

With regard to a possibly existing transfer station for converting the finished film bags into an outer packaging, such a transfer station may preferably comprise a further transport device for the outer packaging, in particular cartons, whose transport direction is preferably parallel and preferably in the opposite direction to the transport direction for the films Bends and the resulting film bag runs, the two transport devices are independently controlled and driven.

As a rule, the device comprises a machine frame which carries the components described, that is to say both the one or the two transport devices as well as the individual processing stations and processing units and optionally the robots performing the conversion operations.

It is obvious that with such a device, the production of the desired film bag is very flexible feasible, so different film bags can be made in size and material and different products can be packed in it.

c) embodiments

Figur 1a:

eine Maschine zum Herstellen der Folienbeutel in der Aufsicht, jedoch ohne Roboter,

Figur 1b:

die Maschine ohne Maschinengestell in der Aufsicht,

Figur 1c:

die Bogen-Herstelleinheit der Maschine in perspektivischer Ansicht,

Fig. 2a1 bis 2e1:

einen ersten Herstellungs-Ablauf für die Folienbeutel betrachtet in der Aufsicht sowie in Durchlaufrichtung,

Figur 3c1 bis 3e1:

einen Teil eines zweiten Herstellungs-Ablaufes für Folienbeutel mit analogen Figurenbezeichnungen,

Figur 4a bis d:

die Transportvorrichtung der Maschine in unterschiedlichen Darstellungen

Fig. 5a1 bis 5e1:

einen dritten Herstellungs-Ablauf für die Folienbeutel betrachtet in der Aufsicht sowie in Durchlaufrichtung,

Embodiments according to the invention are described in more detail below by way of example. Show it:

FIG. 1a

a machine for producing the foil bags in the top view, but without robots,

FIG. 1b

the machine without machine frame in the supervision,

FIG. 1c:

the sheet making unit of the machine in perspective view,

FIGS. 2a1 to 2e1:

a first manufacturing process for the film bag viewed in the plan and in the direction of passage,

FIGS. 3c1 to 3e1:

a part of a second production sequence for foil pouches with analogous figure names,

FIGS. 4a to d:

the transport device of the machine in different representations

5a to 5e1:

a third manufacturing process for the film bag viewed in the plan and in the direction of passage,

FIG. 1a and as well FIG. 1b show in the top view of the machine for producing the foil bag.

In this case, parallel to each other, a product strip 30 runs parallel to one another in a product feed direction 10 'on which the products P disposed thereon are transported, as well as a transport device 110, initially the film sheets 100 and downstream of the resulting tubular bag 102 in the direction of passage 10 the machine is transported.

The passage direction 10 for the film sheet is in the FIGS. 1a . b directed from left to right.

In FIG. 1a the machine including the machine frame 20 carrying all the components of the machine is shown, which consists in the direction of passage 10 of a plurality of successively arranged frame modules 20.1, 20.2, which are viewed in plan view rectangular and in the direction of passage usually aligned with each other, but also have an offset can, as in FIG. 1a between the last sealing station 5 and the 1st sales station 6 visible and necessary, as explained later.

Each of these rack modules 20.1 consists of - in this supervision of the FIG. 1a not visible, only in Figure 1c illustrated - upright frame columns 20a in the corners of the square-topped frame module 20.1, 20.2, which are connected by in the direction of passage 10, the longitudinal direction of the machine, extending longitudinal beams 20b and transversely extending transverse members 20a in its upper end region ,

In order to prevent accessibility to the interior of the machine during operation of the machine, along the longitudinal sides of the machine frame 20, the clearances between the upright frame columns 20a are closed by safety doors 7 which, when opened during operation of the machine, trigger an alarm or the machine shut down.

The individual frame modules 20.1 are mechanically connected to one another, in particular screwed, and also connected to each other in terms of data technology and energy.

In this case, the transport device 110 for the film bag production, in particular for the tubular bag production, extends in the machine in the direction of passage 10 from the beginning of the first frame module 20.1 to the last frame module and possibly even beyond, while the in FIG. 1a below visible, from the right incoming product strip 30 in the second frame module 20.2 from the left, ie in the direction of passage 10 ends.

Because in the first, in FIG. 1a The left-most frame module 20.1 is, on the one hand, a sheet station 1 in the form of a sheet-producing unit 22 for producing these film sheets 100 from a wound on a supply roll 23 Film web present and on the other hand a laying station 2 for placing the film sheets 100 on a transport carriage 120 of the transport device 110 housed.

The supply roll 23 is attached to the frame module 20.1, but on the in FIG. 1a below lying outside, which primarily serves the easier change of the supply roll 23 when it is outside of the frame module 20.1.

Such a stock roll unit with therein supply roll 23 is in Figure 1c shown separately, whereby two of the upright frame columns 20a of the frame module 20.1 can be seen, to which the supply roll unit and thus also the supply roll 23 is attached.

From this supply roll 23, the axial direction 23 'parallel to the longitudinal direction 10 of the machine, the passage direction 10, runs, wound thereon the film web 98 in the transverse direction 11 and into the interior of the rack module 20.1 in deducted, and there by means of in FIG. 1a indicated cutting strips 24 initially separated by a section parallel to the axial direction 23 'of the supply roll 23 cuts strip 99 of the film web 98, which are then divided by cuts or punches in the withdrawal direction in the axial direction 23' spaced individual foil sheets 100. This represents the bow station 1.

These foil sheets 100 are replaced by a in FIG. 1a indicated only by arrows and in FIG. 1b represented robot 50 ', which must have only two degrees of freedom, and taken in the transverse direction 11 within this first frame module 20.1 of the machine transferred to a transport carriage 120 of the transport device 110, which of course for this purpose in the direction of passage 10 at the corresponding location of the transport device 110 must be positioned. This represents the lay-on station 2. Such, with generally in the direction of passage 10 a plurality of consecutively arranged foil sheets 100 loaded transport carriage 120 is then moved in the direction of passage 10 in a usually arranged in the next rack module 20.2 filling station 3, which can also claim several rack modules 20.2, and in the by means of a - in FIG. 1a for clarity, only indicated and FIG. 1b shown - or more robots 50 hanging over the transport device 110 and the product tape 30, each one or more products P are taken from the product tape 30 and stored in the correct rotational position and position on each one of the film sheets 100.

The transport carriage 120 with the now filled, lying on film sheets 100 is further transported to a Aufrichtestation 4, then to a first sealing station 5 for producing a longitudinal sealing seam 101 ', then on to a further sealing station 5 for producing the transverse seam 102' in all Usually each housed in a separate rack modules 20.3 to 20.5.

In a subsequent in the direction of flow 10 transfer station 6, which claimed in this case, two more rack modules 20.6, 20.7, another transport device 110 ', which is preferably formed with respect to the independently movable carriage 120' and the transport direction 10 analogous to the transport device 110 , and extends from this transfer station 6 to the right.

On this parallel to the first transport device 110 extending second transport direction 110 'are outer packages, in particular cartons 130, arranged on the individual transport carriage 120', in the first in the direction of passage 10 of the two frame modules 20.6 by means of a indicated rectifier made of flat cardboard blanks and placed on the transport device 110 '.

By means of further, in the direction of passage 10 successively arranged, the robot 50, the finished tubular bag 102, which lie on the carriage 120 of the first transport device 110, taken and in the outer packaging 130 on the carriage 120 'of the other, further transport direction 110' and implemented by this transported away for further handling, in particular beyond the end of the last rack module 20.7 addition to a not shown, more distant, separate station, such as a palletizing station.

Transverse to the passage direction 10, the rack modules 20.6, 20.7 with the additional transport device 111 'therein to the upstream in the direction of passage 10 upstream rack modules 20.1 to 20.5 offset so far that the first transport device 111 extends through all the rack modules 20.1 to 20.7, However, the additional transport device 111 'with respect to the first transport device 111 opposite product strip 30 next to the rack modules 20.6, 20.7 with the additional transport device 111' therein.

The sequence of producing the film bag 102 from a respective film sheet 100 with product P applied thereon in the erection station 4 and the sealing stations 5 is determined by means of a single film sheet 100 in the Figures 2 and 3 shown, wherein the Figures 2a1, 2b1 . 2c1, 2d1, 2e1 show the situation in the top view and those provided with the parallel numbering Figures 2a2, 2b2 . 2c2 and 2d2 next to it the respective same situation considered in the direction of passage 10.

Only for the FIG. 2e1 , which represents the finished tubular bag 102 in the plan, there is no additional analog representation considered in the direction of passage 10, since this view of the finished tubular bag 102 already in Figure 2d2 is apparent.

A first procedure show the Figures 2 :
In the Figures 3 is a part of a slightly different, second procedure with respect to the states c, d and e shown, again the Figures 3c1, 3d1, 3e1 an illustration viewed in the plan view of the machine and the analog numbered Figures 3c2 and 3d2 the representation of the same manufacturing step considered in the direction of passage 10, in turn, the FIG. 3e1 no analog representation considered in the direction of flow 10 contains, since this state of the tubular bag 102 already in Figure 3d2 is apparent.

First procedure:
First, the foil sheets are provided and placed one or more foil sheets on a slide 120.

In the filling station 3, the product P, which is cuboid here, according to Figure 2a1 placed on a foil sheet 100 so that this viewed from the top projecting on all sides over the product P. Viewed in the plan view, the product P lies with its greatest direction of extent in the direction of passage 10.

Preferably, as well as based on the FIG. 1a . b to recognize - in the transport direction 10 consecutively several foil sheets 100 on the transport carriage 120, so its format plate 15 is placed.

• in Querrichtung 11 eine größere Erstreckung, also Breite, aufweist als der in dieser Richtung liegende Umfang des Produktes, und
• in Längsrichtung 10 länger ist als das Produkt P in Durchlaufrichtung 10, zuzüglich der Höhe des Produktes P in dieser Richtung.

In this case, the film sheet 100 must be dimensioned relative to the product P so that he

• in the transverse direction 11 has a greater extent, ie width, than the lying in this direction circumference of the product, and
• in the longitudinal direction 10 is longer than the product P in the direction of passage 10, plus the height of the product P in this direction.

As FIG. 2a2 shows, the film sheet 100 in the transverse direction 11 is wider than the size plate 15 of the carriage 120, on the upper side of the sheet of film 100 is held by means of suction applied to vacuum suckers 13.

Subsequently, the edges or edge regions 100a, b of the foil sheet 100 preferably extending in the direction of passage 10 are cut according to the in FIG FIG. 2a2 plotted arrows and above the product P, preferably over its center, placed in the transverse direction 11 against each other, so that the product P in this longitudinal direction, viewed in the direction of passage 10, is wrapped by the sheet of film 100 and the juxtaposed edge portions 100a, b one of the Top of the product P upwardly projecting fin form 101c, whose initially two separate layers of film according to Figure 2b1, 2b2 are sealed against each other to a longitudinal sealing seam 101 'extending in the longitudinal direction 10.

For this purpose, on both sides of the initially two-layered fin 101c in the transverse direction 11 brought up sealing jaws 19a, b of a sealing unit 19 and press the two layers of the fin 101c against each other and weld them due to the temperature of the sealing jaws 19a, b against each other. This can also be done in a continuous process by the sealing jaws 19a, b sealing rollers 19a, b, as in FIG. 2b1 can be seen in the plan, the aligned about the vertical 12 roller axles 19 'are preferably already biased against each other and driven in rotation, and thereby introduced therebetween, still two-layered fin 101c weld, which can be done alone by advancing the carriage 120 in the direction of passage 10, so that the sealing rollers 19a, b can be stationarily positioned.

As a result, a film tube 101 is now formed, which is still open at the front and rear end in the direction of passage 10. To close this, first the fin 101c is folded down from the upright position onto the adjoining region of the outer periphery of the film tube, which is stabilized by the product P, which is usually relatively tightly enclosed therein, as in FIG Figure 2c2 shown in the arrow direction.

This is possible in a simple manner by appropriate positioning of a fixedly arranged, correspondingly shaped guide surface 18, and along the film tube 101 with the fin 101c along this guide surface 18, which can be arranged at a corresponding position stationary in the machine frame, as in Figure 2c1 and Figure 2c2 shown.

After the fin 101c is folded down into the horizontal position, ie usually in the region of the wrapped product P on its upper side and additionally beyond standing with the front and rear projection of the film tube 101 in and against the direction of passage 10 on the product P, this supernatant closed in transverse direction 11 by producing a transverse sealing seam 102 ':
For this purpose, in the direction of passage 10 in front of and behind the product, preferably by means of in Figure 2d1 seen in the top view about fork-shaped sealing unit 19, by means of two vertically movable against each other sealing jaws 19a, 19b pressed against each other to about the middle of the height of the product P before and behind this transverse direction 11 transverse seal 102 '.

For this purpose, the lower sealing jaw 19a moves transversely under the supernatant with which the film tube 101 protrudes in and against the longitudinal direction 10 on the product, and preferably raises this lower portion of the supernatant to about half the height of the product P, while the upper sealing jaws 19b with its underside is still at a height above the product P and the film tube 101.

After the film tube 101 with its supernatant is completely between the two sealing jaws 19a, b, the height-movable upper sealing jaws 19b descends on the lower sealing jaws 19a until, between them, the two layers of the supernatant of the film tube 101 are pressed together and by means of the sealing jaws 19a, b against each other to the transverse sealing seam 102 'are welded.

For this purpose, therefore, the fork-shaped sealing tool 19 in the transverse direction 11 so far displaced that it can be moved so far on the one hand from the path of movement of the film tube 101 out in a deactivated position and on the other hand at a positioned at the corresponding longitudinal position film tube 101 that the supernatant of the film tube 101 is in each case between the sealing jaws 19 a, b of one of the prongs of the fork-shaped sealing tool 19.

Since in the fork-shaped sealing tool 19 according to the supervision of Figure 2d1 Both tines - the free distance in the longitudinal direction 10 is slightly greater than the length of the product P in this direction - consists of such a pair of sealing jaws 19a, b, both supernatants of the film tube 101 are transversely sealed in a single operation.

This creates the finished and closed on all sides foil tube bag 102, as in the supervision in FIG. 2e1 can be seen and considered in the longitudinal direction 10 already Figure 2d2 is apparent.

In the Figures 3 is a partially different, second movement shown up to that in the Figures 3c1, 3c2 state shown the procedure according to Figures 2a1, to 2c2 equivalent.

Thereafter, however, the film tube 101 is rotated with the product P therein about an upright axis 12 'by 90 °, so that the film tube 101 extends in the transverse direction 11.

This is possible by at least the format plate 15, on which initially the sheet of film 100 and now created therefrom film tube 101 is rotatable about this vertical axis 12 'relative to the main body 16 of the transport carriage 120, which is only possible if either only a foil sheet 100 is located on the format plate 15.

If on the transport carriage 120, so its format plate 15, initially in the direction of passage 10 consecutively several foil sheets 100, there is a possibility that the format plate 15 is divided in the direction of passage 10 into several plate sections, each carrying a foil sheet 100 and the each individually about a vertical axis 12 'relative to the base body 16 of the transport carriage 120 are rotatable.

As a result, the projections 101a, b of the film tube 101 protrude beyond the product on both sides in the transverse direction 11.

This makes it possible to make the transverse sealing seams 102 'during the passage of the film tube 101 in the transport direction 10, for example by below and above the transverse seam 102 'to be produced in the transverse region of the respective overhang 101a, 101b, sealing rolls 19a, b are arranged in a fixed position above and below the film tube 101 - as in FIG Figure 3d2 shown on the right side - which rotate about horizontally in the transverse direction 11 extending axes of rotation 19 '.

These are in turn arranged in such a, this time horizontal, distance from each other or even biased against each other, that the intervening supernatant 101a, 101b is compressed to the transverse sealing seam 102 'and sealed. For this, the transport carriage 12 does not have to be stopped.

Of course, a stationary production of the transverse sealing seam 102 'is possible, so with stopped transport carriage 12, in which then two from above and below against each other approaching, non-rotating sealing jaws 19a, b take the supernatant 102a, b between them and welded, as in the left half of the Figure 3d2 shown.

In both cases, this results in a finished tubular bag 102, as in FIG. 3e1 is shown in the supervision and in Figure 3d2 already seen in the direction of passage 10 can be seen.

In this context, it should be noted that in both approaches, the transverse seal 102 'in the region of the folded fin of the longitudinal seam is four-ply, otherwise only two-ply. Therefore, the transverse sealing seam 102 'is preferably produced by means of heat-sealing jaws and not by means of ultrasonic sealing jaws.

How to proceed with the finished tubular bags 102, which are still on the carriage 120 of the transport device 111, again show the FIGS. 1a , b:
Because downstream of the last sealing station 5, in which the last sealing seam, usually the transverse sealing seam 102 ', is produced, in this case two transfer stations 6 adjoin, in which the finished tubular bags 102 are transported by the transport carriages 120 of the first transport device 110 in outer packagings 130, usually cardboard boxes are implemented, which are brought on a further transport device 110 'and transported away, the transport direction 10 parallel here, but possibly also in the opposite direction, to the first transport device 110 runs.

The conversion takes place by means of one or more further robots 50, which, as in FIG FIG. 1B can be seen above the two transport devices 110, 110 'are arranged.

Since the further transport device 110 'is arranged on the side of the first transport device 110 opposite the product strip 30, the rack modules 20.6, 20.7, in which the further transport device 110' is already present, are in the transverse direction 11 to the rack modules 20.1. 20.5 arranged offset in order to fix both transport devices 110, 110 'therein.

The cartons 130 can in turn be arranged independently of each other along a track body 111 'movable carriage 120', so the basic structure of the two transport devices 110, 110 'be the same, or the boxes 130 are placed on a conveyor on which it transported and be removed after filling.

The transport device 110, 110 'is shown in detail separately in the FIGS. 4 a - d shown.

The transport device 110 consists on the one hand of a track body 111, on which on two opposite sides a respective guide track 112a, 112b is formed, along the transport carriage 120 are movable, along each guide track 112a or 112b independently, so that on the same and even more so the different guideways 112a or 112b moving transport carriages 120 may independently have different speeds and even different directions of travel and thus can be stopped individually and independently of the other transport carriages.

As already on the basis of Figures 2 and 3 and best in here FIG. 4a shown in the middle and in the right part, there is a transport carriage 120 respectively from a base body 16, which is moved along the guide track 112a or 112b, and on its side facing away from the guideway, a format plate 15 is attached, which in size to the respective transport task and equipment is adjusted.

In the present case, according to the FIGS. 1a . b the format plate 15 has such a length in the transport direction 10 that three foil sheets 100 can be placed one behind the other, and the format plate 15 is equipped on its upper side with vacuum acted upon suckers 13, which are positioned so that not only the still flat spread sheet of film 100th of which is held on the format plate 15, but also the tubular bag 102, which has a much smaller footprint than the original sheet of film 100th

An additional peculiarity of this transport direction 110 is that the track body 111, which consists of individual in the transport direction 10 consecutively quasi-consistently ordered modules, not only one or more solid rail body modules 111a has their track body 111 just fixedly mounted, but - especially as in the transport direction 10 first and last module of the transport device - a turning module 111b comprises, in which the web body 111 of this module about a pivot axis 17 which extends in the transport direction 10, at least 180 degrees can be pivoted so that the previously upper Guideway 112a, then, after the pivoting by 180 degrees, with the lower guide rail 112b of the adjacent, fixed track body module 111a aligned.

Since the transport carriages 120, in particular their base bodies 16, are also guided captively on the respective guide track 112a, 112b in the vertical 12, a carriage 12 initially located on the upper side of the track body 111 can be displaced by pivoting on its underside and pivoted on this pivoting the then lower guide track 112b - for example, in the empty state - are moved back to the starting point of the transport route to be rotated up there using the other turning module 111b, reloaded and used for the transport of film sheets 100 or products P.

In the FIGS. 4a to d are the rail body modules 111a, b, so the entire rail body 111, shown elevated on supports 113.

Built in a machine, like in FIG. 1a of course, the track body 111 and thus the entire transport device 110 is of course connected to the base frame 20 of the machine, but again so that the rotatability of the track body modules in the turning modules 111b also with transport carriages 120 attached thereto without collision with other parts the machine, in particular its base frame 20, is possible, as well as the method of the transport carriage 120 with applied foil sheets 100 or products P along the entire transport path.

The pivotable sheet body modules in the turning modules 111b are pivoted by means of a controlled turning motor 114.

Since the transport carriages 120 are to be moved independently of one another, there is a respective drive in the base body 16 of the respective carriage 120 in the form of a travel motor 8, which can drive, for example, a pinion rotatably mounted in the base body 16, which has a pinion 111 in the transport direction 10 extending, not shown, rack meshes.

Since the suckers 13 require a vacuum supply, a vacuum pump 14 is preferably present in each base body 16, as well as a vacuum tank 14 ', from which the suckers 13 are subjected to negative pressure, while the vacuum pump 14 the negative pressure in the vacuum tank 14' upright receives.

The individual carriages 120 are supplied with electrical energy for the traction motor 8 as well as for the vacuum pump 14, preferably by non-contact, for example by induction, electrical energy from a running in the middle of the rail body 111 in the transport direction 10 current conductor 115th

Furthermore, the show Figures 5, so Figures 5a1 to 5i1 , a possible third method sequence in representations analogous to the name and arrangement of Figures 2 , in the following also primarily the differences from the first procedure according to the Figures 2 be explained:
A first difference is that according to Figure 5a1 and following the product P viewed in the plan view with its greatest direction of extension not in the direction of passage 10, the transport direction of the film sheets 100 through the machine, as in the Figures 2 , is applied, but with its greatest extent transverse to the direction of passage 10.

Since the longitudinal sealing seam 101 'in a tubular bag 102 is usually created running along in the direction of the greatest direction of extension of the product P to be packaged, the transverse sealing seam 101' is also created transverse to the direction of passage 10 as described below.

However, it should be emphasized that this is not a mandatory rule, and in all described manufacturing processes, the longitudinal sealing seam 101 'can also be arranged in the direction of the smaller extension of the product P considered in the plan view.

The second obvious difference Figures 5 compared to the Figures 2 is that the individual foil sheets 100 are not placed directly on a format plate 15 with a flat top at the beginning of the process, but in each case a groove-shaped recess 25a, formed here in the top of a separate for each foil sheet 100 format trough 25th

The two-sided open channel-shaped recess 25a extends - as the largest extension direction of the product P - also transverse to the direction of passage 10, ie in the horizontal transverse direction 11, so that the format trough 25 is a profile part. The measured in the transverse direction 11 length of the format trough 25 and thus the groove-shaped recess 25a is at most as long as the product P measured in the transverse direction 11, preferably as shown, slightly shorter, so that the product P projects slightly beyond the trough-shaped depression 25a on both sides.

In this case, the groove-shaped recess 25a has inclined flanks, which diverge from the bottom to the upper end of the groove 25a and occupy an increasingly larger upward distance from one another.

The depth of the grooves 25a is at most as large as the height of the product to be inserted P, preferably slightly lower, so that the sealing jaws 19a, b can be moved over the edges of the groove 25a, so here the format tray 25, just above the product.

In the bottom of the trough-shaped recess 25a are preferably vacuum applied to suction 13 to pull down the flat or already hanging down from above approximated foil sheet 100 against the bottom of the groove 25a, whereby the foil sheet 100 already before placing the product P on the Foil sheet 100 in the groove 25a assumes a transversely about U-shaped contour, which facilitates the further handling of the thus deformed film sheet 100

In FIG. 5a2 It can also be seen that the format trays 25 are formed individually for each sheet of film 100 and in this case are not seated directly on the base body 16 of the carriage 120 but on a format plate resting thereon 15 and are in turn also held there by suckers 13.

Neither the holding means in the form of suckers 13 is imperative - both between the format plate 15 and the format pan 25 and between the foil sheet 100 and the groove 25a - but other holding means can be used for this purpose.

Furthermore, the format plate 15 and the single panes 25 seated thereon can also be functionally combined, in particular integrally formed, in the form of a format plate, in which the plurality of groove-shaped recesses 25a are incorporated in the upper side, because on a carriage 120 should preferably in the direction of passage 10 in a row several foil sheets 100 are placed and processed into foil bags.

The use of such groove-shaped recesses 25a is also not bound to the bearing direction of the product P with its greatest direction of extension in the transverse direction 11, but could also in the process sequence according to the Figures 2 be used, in which case the extension direction of the groove-shaped recess 25, ie the profile direction, would lie in the direction of passage 10.

After a product P lies in each groove 25a and on the sheet of film 100, the process according to FIG FIG. 5b2 the longitudinal sealing seam 101 'produced by just above the product P two strip-shaped sealing jaws 19a, b with oppositely directed sealing surfaces which extend in the transverse direction 11, one in the direction of passage 10, the other against the passage direction 10 are approached to each other until they are after above projecting edge portions 100a, b of the film 100 between them and seal and thereby create the longitudinal sealing seam 101 ', which forms in the finished state running in the transverse direction 11, upstanding fin 101c.

Subsequently, sealing jaws 19a, b are again spaced apart from one another in their initial position, in which they occupy a greater distance from one another than the edge regions 100a, b of the not yet sealed foil sheet 100.

The resulting film tube 101 is still in the groove-shaped recess 25a of the format tray 25 - as in FIG. 5b1 with the sealing jaws 19a, b still shown in the sealing position and in Figure 5c1 for reasons of clarity already without the sealing jaws - but is on both sides via the groove 25a before with the two-sided projection 101a, b, as in FIG. 5b1 recognizable.

In order to close this two-sided projections 101a, b of the film tube 101 by transverse sealing seams 102 'in the direction of passage 10, the upwardly projecting fin 101c of the longitudinal sealing seam 101' is first turned over onto the upper side of the film tube 101 - in this case against the Passage direction 10 - by a strip-shaped, extending in the transverse direction 11 Umleger 18 is driven just above the top of the film tube 101 against the fin 101c and this umlegen, wherein the Umleger 18, the underside of the effective guide surface 18 ', in the folded position of the Finn 101c remains stuck on this - as in Figure 5c2 shown - until the production of the transverse sealing seams 102 'is completed.

For this purpose extends - as in Figure 5c1 to recognize - the strip-shaped Umleger 18 preferably in the transverse direction 11 at most over the region of the groove 25a and at most slightly beyond this on both sides.

Because as in the Figures 5d1, 5d2 shown, the lateral projections 101a, 101b of the film tube 101 are pressed against each other from above and below and sealed by means of above and below on the supernatant 101a, b attacking and approaching each other sealing jaws 19a, b, in the direction of passage 10 over the entire extent of the film tube 101 and also seal in the supernatant 101a, b present, folded-over fin 101c.

Since the sealing jaws 19a, b are usually brought in the transverse direction 11 from the side in the spaced-apart state to accommodate the protrusions 101a, b between them, would a transverse in the direction 11 far above the groove 25a projecting Umleger 18 to collisions with the sealing jaws 19a, b lead.

In the case of a plurality of film tubes 101 lying in a row on a carriage 120 in the direction of passage 10, the sealing jaws 19a, b can pass through several or all of the sealing jaws 19a, b of the carriage 120 and seal them all together.

After making the transverse seal 102 ', the tubular bag 102 is sealed around the product P and finished as in FIG FIG. 5e1 shown.

Merely for the sake of completeness, it should again be stated that the individual work steps described above take place at different workstations, which are approached one after the other by the carriage 120 in the direction of passage 10, as well as to the Figures 2 described.

LIST OF REFERENCE NUMBERS

1

Arch station

2

Lay-station

3

filling station

4

Topping Station

5

sealing station

6

transfer station

7

door

8th

traction motor

9

control

10

transport device

10

Passage direction, transport direction foil sheets

10 '

Product feeder direction, transport direction

11 '

transversely

12

vertical

12 '

upright axle

13

Holding device, sucker

14

Vacuum pump

14 '

Vacuum container

15

format plate

16

body

17

swivel axis

18

Guide body, folding unit

18 '

Guide surface, transfer

19

Seal unit

19 '

Roll axis

19a, b

Sealing jaw, seal roll

20

machine frame

21

stocker

22

Bow-making unit

23

supply roll

23 '

axially

24

cutting unit

25

format tub

25a

groove-shaped recess

30

product band

50

robot

98

sheet

99

film strips

100

Foil sheet

100a, b

Area, border area

101

Film tube

101 '

first seal, longitudinal seal

101a, b

Got over

101c

fin

102

Tube Bag

102 '

second sealed seam, transverse seal

110, 110 '

transport device

111, 111 '

Railway body, railway body module

111

Fixed module

111b

Turning module

112a, b

guideway

113

Fastening device, support

114

Reversible motor

115

conductor

120,120 '

transport carriage

130

Outer packaging, cardboard

P

product

Claims (17)

A method for producing longitudinally and transversely sealed, filled foil pouches (102), wherein a) at least one non-form-retaining film sheet (100) is placed in a positionally accurate manner on one of in particular a plurality of transport carriages (120) of a transport device (110) which are movable independently of one another, at least in one transport direction (10), b) holding the foil sheet (100) on the transport carriage (120), c) at least one product (P) is placed on the film sheet (100) in the region of the transport carriage (120), d) in each case at least one first sealed seam (101 ') is produced by respectively placing and sealing two regions (100a, 100b) of the film sheet (100) in a first sealing step, and e) in a second sealing step, in each case at least one second sealed seam (102 ') running transversely to the first sealed seam (101') is produced, f) so that in particular at least one filled and peripherally tightly sealed foil bag (102) is formed, g) wherein the film sheet (100), in particular by means of the transport carriage (120), for carrying out the processing steps in the transport direction (10) successively to processing stations at which the above-mentioned processing steps are completed, is transported. (1st bag shape = tubular bag) Method according to claim 1,
characterized in that
in the first sealing step two edge regions (100a, 100b) of the film sheet (100) which are opposite to one another and are to be laid and sealed against each other, in particular in the transport direction (10), are selected, the edge regions (100a, 100b), in particular over the entire length, of the edge regions (100a, 100b) are sealed against one another, - In particular, while the transport carriage (12) with the film sheet (100) in the transport direction (10) along a sealing unit (19) moves. Method according to one of the preceding claims,
characterized in that
in the second sealing step - Each two opposing areas (101a, 101b) of the film tube (101) formed in the first sealing step, in particular the ends of the film tube (101) are placed against each other and sealed, over the entire width of the film tube (101 ), and at least two second sealing seams (102 ') are produced. Method according to one of the preceding claims,
characterized in that - After the production of the first sealed seam (101 ') and before the production of the second sealed seam (102'), from the rest of the film tube (101) radially projecting, sealing fin (101c) to the remaining film tube (101 ) is folded over, - Especially in the supervision considered the seal fin (101c) in the latitude range of the product (P) is located. Method according to one of the preceding claims,
characterized in that
the at least one second sealed seam (102 ') transversely, viewed in the plan view in particular perpendicularly, is made to extend to the first sealing seam (101'), by either the second sealed seam (102 ') running transversely to the transport direction (10) is produced, - Especially during the carriage (120) with the at least one film sheet (100), in particular film tube (101), in the transport direction (10) is stationary and a sealing unit (19), in particular in the transverse direction (11) Transport direction (10), is introduced relative to the carriage (120) for the sealing, - Or the second sealed seam (102 ') in the transport direction (10) is made running by - The film sheet (100), in particular film tube (101) on the carriage (120) is rotated so that the direction of the second seal seam (102 ') to be generated in the transport direction (10) and - In particular, the second sealed seam (102 ') is produced while the carriage (120) moves with the film sheet (100) in the transport direction (10) along a sealing unit (19). Method according to one of the preceding claims,
characterized in that - The juxtaposition of the two opposite edge regions (102a, 102b) of the film sheet (100) for producing the first sealed seam (101 ') and / or the folding of the sealing fin (101c) with the first sealed seam (101 ') takes place while the carriage (12) with the film sheet (100) in the transport direction (10') along a transfer unit (18), in particular along a Umlege-guide surface (18 '), moves. (2nd bag shape = bag bag) Method according to claim 1,
characterized in that
in the first sealing step - As against each other to be placed and sealed two areas (102a, 102b) two adjoining sections thereof, in the transport direction (10) or transversely, extending thereto, strip-shaped area, in particular edge region (102a, 102b) of the film sheet (100) are selected. Method according to claim 1 or 7,
characterized in that
in the second sealing step - As two juxtaposed and sealed two areas (102a, 102b), the two opposing, not yet sealed against each other, edge regions (102a, 102b) of the film sheet (100) are selected. (general) Method according to one of the preceding claims,
characterized in that - The processing steps on the lying on the carriage (120) foil sheet (100) are performed. Method according to one of the preceding claims,
characterized in that - Either several foil sheets (100) side by side, in particular in the transport direction (10) one behind the other, are placed on the carriage (120) or - Only one film sheet (100) on the carriage (120) is placed, the steps f) and g) in the transport direction (10 ') spaced repeatedly performed and then the transversely sealed film tube (101) into several each circumferentially tightly sealed hose bag (102) is severed. Machine for producing longitudinally and transversely sealed, filled film bags (102), in particular according to one of the preceding method claims, with a transport device (110) having a plurality of transport carriages (120) which can be moved independently of one another along the transport device (110), having a holding device (13) for holding at least one film sheet (100) lying thereon, - Along the transport device (110) in the direction of passage (10) by the transport device (10) successively at least one application station (2) for placing at least one, in particular planar, packaging material on a transport carriage (120), in particular by means of at least one robot (50 ', 50), at least one filling station (3) for placing at least one product (P) on the packaging material lying on the transport carriage (120), in particular by means of at least one robot (50), at least one erecting station (4) for three-dimensionally deforming the planar packaging material into a packaging, at least one sealing station (5) for tightly sealing the packaging, a control (9) for controlling at least the, in particular all, moving parts of the device, characterized in that the application station (2) is suitable for applying a non-form-keeping film sheet (100) as packaging material, - The Aufrichtestation (4) is able by deformation, in particular without stretching of the film sheet (100), areas, in particular edge regions (100a, b), of the non-form-retaining film sheet (100) to approach each other, in particular against each other to lay - The sealing station (5) is capable of sealing against each other sealed areas (100a, b) of one and the same foil sheet (100) against each other. Machine according to claim 11,
characterized in that - The transport carriage (120) as a support surface at least one, in particular without tools, easily replaceable, in particular attachable, format plate (15), and or - The format plate (15) relative to the base body (16) of the transport carriage (120) about a perpendicular to the main plane of the format plate (15) extending pivot axis (17) pivotally, in particular rotatable, is preferably at least 90 °. Machine according to one of the preceding device claims,
characterized in that
the laying station (2) - Includes either a reservoir for film sheets (100) - Or a manufacturing unit (22) for film sheets (100), in particular - Includes a supply roll (23) for a foil strip (98) and - At least one cutting device (24) for cutting in the axial direction (23 ') of the supply roll (23) extending film strip (99) from the free end of the film strip (98) and - In particular a cutting device (24) for cutting the film strip (98) or the separated film strip (99) in a plurality of in the axial direction (23 ') successive film sheets (100). Machine according to one of the preceding device claims,
characterized in that - The erection station (3) in the direction of passage (10) after the filling station (3) is arranged. or - The erection station (4) has guide surfaces (18 '), by moving along the film sheet (100) by means of the transport carriage (120) parts of the non-form-retaining film sheet (100) in the desired position and in particular in this position can hold. Machine according to one of the preceding device claims,
characterized in that
the sealing station (5) has at least one sealing unit (19) positioned in a stationary manner on the transport device (10), in particular in the direction of passage (10 '), at least one longitudinal sealing seam (101 ') extending in the direction of passage (10) is produced on the sheet-fed sheet (100) passing through the sealing unit (5) in the passage direction (10), and or - At least one in the transverse direction (11) to the passage direction (10), horizontally or vertically, transverse transverse seam (102 ') on the in the direction of passage (10') through the sealing unit (5) stationary foil-sheet (100) produce. Machine according to one of the preceding device claims,
characterized in that - The apparatus comprises a transfer station (6) for converting the tightly sealed, filled film bag (102) in an outer package (130) and - In particular, the transfer station (6) comprises a transport device (110 ') for the outer packaging (130), which in particular parallel and possibly in the opposite direction to the transport device (110) for the foil sheets (100) can be driven. Machine according to one of the preceding device claims,
characterized in that - A frame-like, extending in the machine direction, machine frame (20) is present, in which the individual processing stations (1-6) are arranged and in which the transport device (110) with its transport direction (10) is arranged in the direction of passage of the machine, and or - The supply roll (23) of the manufacturing unit (22) for film sheets (100) outside, in particular laterally outside, the machine frame (20) is arranged, in particular the supply roll (23) with its axial direction (23 ') in the direction of passage (10). Gradient.

Images