WO2017092993A1

WO2017092993A1 - Device and method for forming a plurality of webs of bags

Info

Publication number: WO2017092993A1
Application number: PCT/EP2016/077192
Authority: WO
Inventors: Ralf Frulio; Markus Schwarz; Maik LAMPRECHT; Donat Ziegler
Original assignee: Robert Bosch Gmbh
Priority date: 2015-11-30
Filing date: 2016-11-10
Publication date: 2017-06-08
Also published as: DE102015223706A1; JP2018535161A; EP3383749A1

Abstract

The invention relates to a device for forming a plurality of webs (12a-b) of bags (14a-b), such as 3-side sealed bags, in particular stick packs, or 4-side sealed bags, in particular sachets, from at least one material web (16a-b), comprising a plurality of function modules (20a-b), which are supported in a web direction (18a-b) along each of the webs (12a-b) and which are provided in order to each perform at least one operation in order to form the bags (14a-b). According to the invention, a supporting unit (22a-b) supports at least some of the function modules (20a-b) along the web direction (18a-b) and/or in a row direction (26a-b) perpendicular to the web direction (18a-b) at adjustable distances (24a-b) from each other.

Description

DEVICE AND METHOD FOR MAKING MULTIPLAYS OF STRAPS OF BAGS

description

Apparatus for forming a plurality of sheets of bags

State of the art

It is already an apparatus for forming a plurality of sheets of bags, such as 3-edge sealed bags, in particular stick packs, or 4-edge sealed bags, in particular sachets, of at least one material web, with a plurality of in a web direction along each of the tracks stored

Functional modules, which are intended to perform at least one operation to form the bag each have been proposed.

Revelation of the Indo

The invention is based on an apparatus for forming a plurality of webs of bags, such as 3-edge-sealed bags, in particular stick-packs, or 4-edge-sealed bags, in particular sachets, from at least one material web, with a plurality of in one Web direction along each of the tracks stored functional modules, which are intended to perform at least one operation for forming the bag.

A bearing unit is proposed, which is intended to support at least a part of the functional modules along the web direction and / or in a row direction transversely to the web direction in mutually adjustable intervals. In this context, an "adjustable distance" is to be understood as meaning, in particular, that the distance can be changed in a setting operation and subsequently fixed and / or fixed for operation of the device. a distance of the device can be understood, along which at least one material web is transported in order to form a sequence of bags in the web direction. The device has, in a row direction transverse to the web direction, a plurality of webs next to one another in order to simultaneously form a plurality of pouches arranged side by side in the row direction.

In this context, a "3-edge sealed bag" is to be understood in particular as meaning a bag which is formed by dividing a material web onto the webs into partial webs, folding the partial web around its longitudinal axis and sealing it with a longitudinal sealing seam, so that It forms a film tube, which is closed by two transverse sealing seams, which form a right angle with the longitudinal sealing seam.The closed bag thus has sealing seams on 3 of its edges Those skilled in the art will provide such and similar sealed seams depending on a desired appearance of the 3-edge sealed bag is much larger than their width in row direction, are the Professional also known as so-called "stick-packs". In this context, a "4-edge sealed bag" and / or "sachet" is to be understood in particular as a bag which is formed by stacking two material webs and sealing along two edges in the web direction with longitudinal seams and transversely to the web direction along two edges sealed with transverse sealing seams. In addition to sealing, the bags may be separated along the longitudinal and / or transverse sealing seams by attaching a cut and / or perforation to the other bags formed in the web and / or row direction. In this context, an "operation" on the material web is to be understood in particular to mean a manipulation of the material web and / or part web, such as in particular reshaping, cutting and / or perforating, transport and / or power transmission, transmission of heat and / Preferably, all operations on the web of material are carried out by functional modules which are mounted on the bearing unit in web-direction adjustable distances Modules are exercised that are not the bearing unit and / or not adjustable in the web direction and / or in the row direction intervals are stored. The person skilled in the art will determine suitably which operations are advantageously carried out by functional modules mounted on the bearing unit in distances adjustable in the web direction and / or in the row direction. Preferably, the at least in the web direction at adjustable intervals mounted functional modules as dosing unit for dosing and / or filling of product, as a folding unit for forming the web or a partial web, as a longitudinal sealing unit for attaching at least one longitudinal sealing seam, as a longitudinal cutting unit for separating the material web in the web direction, as a transverse sealing unit for attaching at least one transverse sealing seam and / or as a cross cutting unit for separating the material web in the row direction, as modules for Luftauspressen and / or air suction, for supplying protective gases and as transport modules for web and / or bag transport. There are other types of functional modules conceivable. Likewise, it may be possible that a functional module has multiple functions or a plurality of functional modules are stored together, in particular functional modules that perform functions whose relative distance from one another is independent of the bag length and / or bag width. In particular, functional modules for transverse sealing and separating can be stored together. The bags are preferably filled in each case after the longitudinal seam (s) and a transverse sealing seam have been formed at one end in the direction of the transporting movement. Afterwards, the bags are closed in which the additional transverse seam is attached. The functional modules are preferably arranged in the web direction along a vertical transport path. In this context, a "vertical transport path" is to be understood in particular as meaning that the transport movement is oriented at least substantially in the direction of gravity Preferably, the transport path with the direction of gravity closes an angle of less than 30 °, particularly preferably less than If the functional modules are mounted with spacings which can be adjusted in the web direction, distances of successive web modules can be advantageously set, in particular the spacings can be adjusted depending on a packaging format of the bags to be formed, in particular a bag length be particularly flexible bags with different packaging formats and / or lengths can be formed Track direction to each other can be set to the smallest possible value depending on the bag length. It can be avoided that a plurality of completely and / or partially formed bags are located between two functional modules in the web direction. Malfunctions can be reduced. The device can be particularly reliable. A height of the device can be reduced. The functional modules can be arranged at a height which is particularly easy for a user to achieve in terms of ergonomic aspects. Operation and / or maintenance can be carried out particularly easily.

Advantageously, the functional modules in the row direction are mounted transversely to the web direction in mutually adjustable intervals. The device may be adapted to form bags having different widths measured in the row direction. The distances of the functional modules can advantageously be adjusted depending on the bag width to be formed. Preferably, the functional modules are each intended to perform an operation on a bag of a row. Preferably, the functional modules of each row are at least partially formed separately. Preferably, operations of functional modules of a series are driven by a common drive unit. A number of necessary drive units can be reduced. It can be ensured that the function modules perform the operations synchronously in each case. It may be possible for individual functional modules to be common to all the rows and / or to be used to perform an operation on all the bags in a row. This can be advantageous in particular in the case of functional modules which perform operations in which an adjustment of distances of the functional modules in the row direction can be dispensed with depending on the bag width. In particular, a transverse sealing unit and / or a transverse cutting unit may extend in the row direction along a plurality of rows of panels and perform together an operation such as a transverse seal and / or a row direction separation on a plurality of rows. The device can be constructed particularly simply. Particularly preferably, at least a part of the functional modules is mounted along the web direction and in the row direction at mutually adjustable intervals. The device can be particularly flexible. In particular, bags of different lengths and different widths can be produced particularly efficiently. Advantageously, the device has at least one cross member, which is provided to store adjacent functional modules in the row direction together in mutually adjustable intervals. Preferably, in each case at least one of two transverse beams, each adjacent in the web direction, is displaceably mounted in the web direction. The functional modules can advantageously be adjusted together in the web direction to a packaging format and / or a bag length. Setting the distance of the functional modules in the web direction can be particularly simple. In order to adjust the distances of the functional modules in the web direction, it may be sufficient for a number of functional modules to be mounted on a machine frame and for the further rows of functional modules to be displaceably mounted on cross members. The device can be constructed particularly simply. Setting the distances can be particularly easy. The functional modules are preferably mounted on the respective cross member in mutually adjustable intervals. Are advantageous in

Row direction adjacent functional modules mounted on the respective cross member in the row direction transverse to the web direction in mutually adjustable intervals. A sliding in the row direction storage of the functional modules on the respective cross member can ensure a particularly good alignment of the functional modules along the row direction.

Particularly advantageously, the bearing unit can be provided to store at least a part of the functional modules interchangeable. In this context, "interchangeable storage" is to be understood in particular as meaning that the functional modules can be replaced by a machine operator by function modules with a different function Preferably, the bearing unit has at least one quick-release fastener, which can be replaced and / or fixed with an exchange of the functional modules with conventional tools and / or preferably without tools is intended to separate bags with a straight cut, simply against a separation unit, which performs a "zig-zag cut" replaced. It is proposed that the bearing unit has a guide system on which functional modules are displaceably mounted in the web direction. In this context, a "guide system" is to be understood as meaning, in particular, a system of guides aligned in the web direction, In particular, all functional modules displaceably mounted in the web direction can be supported directly or indirectly on the guide system In particular, the spacing of the functional modules in the web direction can also be adjustable with respect to one another if a number of functional modules are mounted non-displaceably in the web direction It may also be possible for a plurality of functional modules whose spacing can not be changed Preferably, the guide system has continuous guides in the web direction. "Continuous in the web direction" is to be understood in this context in particular to mean that the guides along a shift range have a r series of functional modules, preferably along a shift range of all rows of functional modules, one-piece guides. Tolerances can be reduced. The function modules can be displaced particularly reliably in the web direction. Preferably, at least on both sides of the rows of webs of

Device each arranged a guide system on which the functional modules are stored. Particularly preferably, each of the transverse beams is mounted at least on the guide systems arranged on both sides of the rows of webs of the device. The cross members can be displaceably mounted particularly accurately in the web direction.

Furthermore, at least one drive unit is proposed, which is provided to set at least one distance along the web direction of at least two successive functional modules in the web direction. Each row of function modules displaceably mounted in the web direction, in particular each cross member displaceably mounted in the web direction, can have a drive unit which is provided for displacing and / or fixing the row and / or the cross member in the web direction. Preferably, further, in particular positive and / or non-positive-acting braking means may be provided to fix the distances after setting the distances in the web direction. It may also be possible that slidably mounted rows of function modules and / or displaceably mounted in the web direction cross member by sliding and / or pulling adjacent in the web direction function modules and / or cross members in the web direction are displaceable. It can be provided to coupling means, driven in the web direction

Function modules and / or cross member with function modules and / or cross members without drive unit to connect at least during a setting of a position in the web direction. A number of drive units can be reduced. Furthermore, at least one drive unit can be provided to set intervals of at least one row of function modules in the row direction.

The distances in the row direction can advantageously be adjusted at least partially automated.

It is proposed a control unit, which is provided to the distances of at least two consecutive in the web direction functional modules in

Set web direction at least partially automated depending on a bag format to be formed. Advantageously, the control unit may also be provided to adjust the distances of at least one row of function modules. In particular, the control unit may be provided to control at least one of the drive units. In this context, "partially automated" is to be understood in particular as meaning that at least one operation necessary for setting the distances between the functional modules in the web direction is triggered and / or controlled by the control unit A portion of the operations are performed automatically and a portion by a user intervention.A user intervention to perform the automatic operations may be omitted.The control unit may also be arranged to guide the user during the setting of the intervals .In particular, the control unit may instruct the user output, which operations are to be performed and / or which distances are to be set .. Preferably, the control unit may be provided to set fully automatically at least one of the distances or preferably the distances in the web direction of all functional modules In this context, the term "fully automatic" should be understood to mean, in particular, that the control unit is provided, after an input and / or transmission of desired distances and / or bagging distances. lengths to suspend a fixation of the functional modules in the web direction to move the function modules in the web direction and then fix the function modules in the web direction again for operation of the device. Advantageously, the storage unit is provided to store a variable number of webs of functional modules. In particular, it may be possible to build functional modules for producing further webs of bags on the storage unit and / or to remove functional modules for producing webs of bags from the storage unit. The device can be particularly flexible. A number of rows of tracks can be adjusted.

It is further proposed that the bearing unit and / or at least a part of the functional modules has receptacles for at least one format gauge which is intended to define distances of corresponding function modules of adjacent webs in the row direction, at least during a format changeover. In this context, a "receptacle" is to be understood as meaning a contour which is intended to define at least one degree of freedom of a position between the format gauge and the receptacle, In particular, the function modules may comprise the receptacles Alternatively, the receptacles may be arranged on mounting carriages of the bearing unit In particular, the format gauge may be adapted to adjust spacing of function modules of a row in the row direction, It is also possible that a format gauge is provided to position functional modules of a web in a row direction The format gauge can advantageously facilitate setting a position of functional modules of a web in the row direction, or a format gauge can be provided for defining the distances of functional modules in the web direction support advantageous direction.

Particularly advantageously, a packaging machine has the device with the mentioned features. The packaging machine may have the advantages of said device. Furthermore, a method for forming a plurality of webs of bags, such as 3-edge sealed bags, in particular stick-packs, or 4-edge sealed bags, in particular sachets, from at least one material web is proposed, in which a plurality of webs in one direction along each of the tracks stored functional modules for forming the bag in each case performs at least one operation on the respective web, wherein spacings of the functional modules along the web direction are adjusted depending on a bag format to be formed.

The device according to the invention should not be limited to the application and embodiment described above. In particular, in order to fulfill a mode of operation described herein, the device according to the invention can have a number deviating from a number of individual elements, components and units mentioned herein.

drawing

Further advantages emerge from the following description of the drawing. In the drawing, two embodiments of the invention are shown. The drawing, the description and the claims contain numerous features in combination. The person skilled in the art will expediently also consider the features individually and combine them into meaningful further combinations.

Show it:

1 shows a packaging machine with a device according to the invention in a first embodiment,

2 shows a symbolic representation of a material flow in the packaging machine,

3 is an isometric view of the device,

Fig. 4 is an isometric view of the device during a

setting process,

Fig. 5 shows a packaging machine with a device according to the invention in a second embodiment and an isometric view of the device of the second embodiment.

Description of the embodiments

1 shows a packaging machine 42a with a device 10a, which is provided to form seven webs 12a of bags 14a from a material web 16a fed from a material roll 44a, in this case 3-edge sealed bags and / or stick-packs (FIG 2), in a first embodiment. The apparatus 10a includes functional modules 20a supported in a vertical direction of travel 18a oriented in the direction of gravity 46a along each of the tracks 12a, which are arranged to perform at least one operation to form the bags 14a, respectively.

Along the tracks 12a, in the example shown, the following functional modules 20a are respectively arranged along a vertical transport path 48a oriented in the direction of gravity 46a, along which the bags 14a are formed (FIGS. 1 to 3):

a metering unit 50a, which is intended to meter contents into the bags 14a to be formed,

a longitudinal cutting unit 52a, which is intended to separate from the material web 16a a partial web 54a which is fed in the sequence of the respective web 12a,

a folding unit 56a designed as a forming shoulder, which is intended to form a film tube 58a from the partial web 54a,

a longitudinal sealing unit 60a, which is intended to close the film tube 58a with a longitudinal sealing seam 62a. Furthermore, the device 10a has a transverse sealing unit 64a with an integrated

Cross-cutting unit, which is intended to attach to the bags 14a of all tracks 12a transverse sealing seams 66a and to separate a respective bag 14a from each subsequent bag 14a. The transverse sealing unit 64a extends in a horizontal row direction 26a along all the webs 12a of the device 10a. It is also possible for the webs 12a to be independent of each other. gig running, preferably synchronously driven transverse sealing units or that a plurality of transverse sealing units in the horizontal row direction 26a are arranged side by side and each extending along a portion of the tracks 12a. In the case of devices and / or devices with a large number of tracks 12a that are wide in the row direction 26a, a plurality of transverse sealing units may be advantageous in particular.

The device 10a has a bearing unit 22a, which is provided to support the functional modules 20a along the web direction 18a in mutually adjustable distances 24a. Further, the bearing unit 22a is provided to the

Function modules 20a in the horizontal row direction 26a transverse to the web direction 18a store in mutually adjustable distances 28a.

The bearing unit 22a has transverse beams 30a ', 30a ", 30a'", which are intended to displaceably support adjacent functional modules 20a in the row direction 26a in the web direction 18a. The bearing unit 22a has a common guide system 32a on which the cross members 30a ', 30a ", 30a'" are displaceably mounted with the functional modules 20a in the web direction 18a. The guide system 32a has two linear guides 68a on both sides of the

Webs 12a are disposed on a machine frame 70a and extend along the web direction 18a. The cross members 30a ', 30a ", 30a'" are slidably mounted on the linear guides 68a in the web direction 18a. The bearing unit 22a has three cross members 30a ', 30a ", 30a'", wherein a first cross member 30a 'the metering units 50a, a second cross member 30a "the folding units 56a and a third cross member 30a'" the longitudinal sealing units 60a together in the web direction 18a displaceable outsourced. The cross members 30a ', 30a ", 30a'" each have linear guides 72a, on which the respective functional modules 20a are displaceably mounted in the row direction 26a.

The device 10a has drive units 34a ', 34a'", which are provided to adjust distances 24a along the web direction 18a of successive functional modules 20a in the web direction 18. A toothed belt 74a extends along the linear guides 68a into the pinion 76a of the on - Drive units 34a ', 34a'"grab a drive force on the form-fitting Machine frame 70a to transfer. In addition, not shown here locking devices are provided after the adjustment, the cross member 30a ', 30a ", 30a'" on the machine frame 70a to fix in the web direction 18a and set the distances 24a.

A first drive unit 34a 'is provided to move the first cross member 30a', on which the metering units 50a are mounted, in the web direction 18a and thus to adjust the distances 24a between the metering units 50a and the folding units 56a. A further drive unit 34a '"is provided for displacing the third cross member 30a'" on which the longitudinal sealing units 60a are mounted in the web direction 18a and thus for adjusting the spacings 24a between the longitudinal sealing units 60a and the folding units 56a.

The second cross member 30a "has no drive unit for displacing it along the web direction 18a. The cross member 30a" has a releasable locking device with which it can be fixed in the web direction 18a on the machine frame 70a. If the second cross member 30a "is to be displaced in the web direction 18a, the cross member 30a '" is moved by the drive unit 34a' "in the direction of the cross member 30a" until it rests against contact surfaces of the cross member 30a '"(FIG. 4) As a result, the locking device of the cross member 30a "is released and the cross member 30a" is moved by the drive unit 34a '"together with the cross member 30a'" to the desired position of the cross member 30a ". Subsequently, the cross member 30a "is fixed with the locking device at the desired position and the cross member 30a '" is moved by the drive unit 34a' "to its desired position.

Furthermore, the cross member 30a "has a drive unit 78a designed to adjust the spacings 28a in the row direction 26a of the folding units 56a. For this purpose, the drive unit 78a drives a threaded spindle 80a by means of which the folding units 56a are displaceable between the folding units 56a are thus automatically adjustable depending on a desired path distance between the tracks 12a.

Furthermore, the device 10a has a control unit 36a, which is provided to adjust the distances 24a of the functions following one another in the web direction 18a. onsmodule 20a partially adjusted in the web direction 18a depending on a bag format to be formed. The control unit 36a controls the drive units 34a ', 34a'"and the locking means of the cross beams 30a 'to 30a'" for this purpose. The control unit 36a also controls the drive unit 78a to appropriately set the distances 28a between the folding units 56a.

The longitudinal cutting units 52a are firmly connected in the web direction 18a with the machine frame 70a and slidably mounted in the row direction 26a. A distance between the longitudinal cutting units 52a and the further functional modules 20a can be determined by displacing the cross members 30a ', 30a ", 30a'" in the web direction 18a.

The cross beams 30a ', 30a ", 30a'" of the bearing unit 22a and the functional modules 20a have in the example only partially shown receptacles 38a for format gauges 40a, which are provided during a format change the distances 28a corresponding function modules 20a of adjacent in the row direction 26a Set tracks 12a. In the example shown, the receptacles 38a for the format gauge 40a on the metering units 50a and a format gauge 40a for setting the distances 28a of the metering units 50a are shown by way of example. The metering units 50a are displaced so that the receptacles 38a correspond to recordings of the format gauge 40a and the format gauge 40a can be inserted into the receptacles 38a. The format gauge 40a thus sets distances 28a between the metering units 50a to a target value corresponding to a desired distance between the webs 12a. The format gauge 40a remains inserted into the receptacles 38a during operation of the device 10a, thus preventing the spacings 28a from changing. Alternatively, a locking device may also be provided to fix the spacings 28a in one operation, so that the format gauge 40a can be removed from the device 10a after the locking device has fixed the distances 28a.

If a different number of webs 12a of bags 14a are to be formed, webs 12a of functional modules 20a can be removed from the device 10a, or further webs 12a can be extended up to one by a width of the web. direction 10a maximum number of functional modules 20a attached to the device. It is also possible that function modules 20a of different types are exchanged. For example, the folding units 56a can be exchanged for folding units of other dimensions to produce bag 14a of different bag width. It may also be possible to replace the transverse sealing unit 64a, for example, to produce a transverse sealing seam 66a with a different embossing and / or a different cutting and / or perforation pattern. For a simple replacement and for the attachment and / or removal of functional modules 20a, these are fastened by means of snap fasteners (not shown here). For example, for fixing and / or positioning of the functional modules 20a dowel pins and fitting holes and clamping levers and easily detachable by the user screwing can be provided. Media and / or energy and / or data connections between the functional modules 20a and the device 10a and / or the packaging machine 42a are preferably implemented by means of connectors. Of the

The skilled person will specify a suitable embodiment here.

The apparatus is used for carrying out a method for forming the plurality of webs 12a of bags 14a from at least the material web 16a, in which the plurality of functional modules 20a stored in the web direction 18a along each of the webs 12a for forming the bags 14a each perform at least one operation of the respective web 12a, wherein the distances 24a of the functional modules 20a along the web direction 18a and the distances 28a in the row direction 26a are adjusted transversely to the web direction 18a depending on a pouch format to be formed.

In the figures 5 and 6, a further embodiment of the invention is shown. The following descriptions and the drawings are essentially limited to the differences between the exemplary embodiments, with reference in principle also to the drawings and / or the description of the other exemplary embodiment of FIGS. 1 to 4 with respect to identically named components, in particular with regard to components having the same reference numbers can be referenced. In order to distinguish the embodiments, the letter a is the reference numeral of the embodiment in the figures 1 to 4 nachep adjusted. In the embodiment of Figures 5 and 6, the letter a replaced by the letter b.

FIG. 5 shows a packaging machine 42b with a device 10b, which is provided to form 6 webs 12b of bags 14b from a material web 16b fed from a material roll 44b, in a second embodiment. The device 10b differs from the device 10a in particular in that the device 10b is intended to form bags 14b formed as 4-edge sealed bags. The material web 16b is separated into two material web halves 82b and turned over in such a way that the material web halves 82b are fed with inner sides of the apparatus 10b facing each other. The bags 12b are then formed in a known manner by sealing and severing or perforating the two web halves 82b along four edges.

The device 10b has, corresponding to the device 10a, in a vertical, in the direction of gravity 46b oriented web direction 18b along each of the tracks 12b mounted functional modules 20b, which are provided for forming the bags 14b each perform at least one operation (Figure 6).

A bearing unit 22b is provided in the same way to support the functional modules 20b along the web direction 18b in mutually adjustable distances 24b and the functional modules 20b in a row direction 26b transversely to the web direction 18b to be adjustable in spaced intervals 28b.

Along the tracks 12b, in the example shown, the following functional modules 20b are respectively arranged along a vertical transport path 48b oriented in the direction of gravity 46b, along which the bags 14b are formed (FIG. 6):

a dosing unit 50b, which is provided to dose contents into the bags 14b to be formed,

a longitudinal sealing unit 60b, which is provided to seal the two material web halves 82b, each with longitudinal sealing seams 62b spaced apart in bag width, - A transverse sealing unit 64 b, which is intended to seal the two web web halves 82 b, each spaced in bag length Quersiegelnäh th 66 b.

The longitudinal sealing units 60b and the transverse sealing unit 64b are each arranged on a cross member 30b ", 30b '", which are provided to displaceably support the longitudinal sealing units 60b and the transverse sealing unit 64b in the web direction 18b. The cross members 30b ", 30b '" are drivable by drive units 34b ", 34b'" in the web direction 18b on a guide system 32b having linear guides 68b arranged. A control unit 36b controls the drive units 34b ", 34b '". The structure corresponds to the first embodiment.

The metering units 50b are mounted on a cross member 30b ', which is fixedly mounted on a machine frame 70b of the packaging machine 42b. Adjustment of a distance 24b between the metering units 50b and the longitudinal sealing units 60b takes place in this example by displacing the crossbeam 30b "on which the longitudinal sealing units 60b are arranged.

The cross member 30b 'has a drive unit 78b, which is provided to adjust distances 28b in the row direction 26b of the metering units 50b. The drive unit 78b drives for this purpose a threaded spindle, through which the metering units 50b are displaceable. The distances 28b between the metering units 50b are thus automatically adjustable depending on a desired bag width.

The longitudinal sealing unit 60b has longitudinal sealing rollers 84b displaceably mounted in the row direction 26b to form the longitudinal sealing seams 62b. According to the first embodiment, the cross member 30b "and the Längssie- gel unit 60b not shown here recordings for a format teaching to

Adjusting the distances 28b of the longitudinal sealing rollers 84b. The format teaching is taken out in this case after setting and setting the distances 28b of the device 10b again.

Claims

claims

1. Device for forming a plurality of webs (12a-b) of bags (14a-b), such as 3-edge-sealed bags, in particular stick-packs, or 4-edge-sealed bags, in particular sachets, from at least one material web ( 16a-b), having a plurality of functional modules (20a-b) mounted in a web direction (18a-b) along each of the webs (12a-b) and provided for forming the pouches (14a-b) each at least to carry out an operation, characterized by a bearing unit (22a-b), which is provided, at least a part of the functional modules (20a-b) along the web direction (18a-b) and / or in a row direction (26a-b) transverse to Track direction (18a-b) in mutually adjustable intervals (24a-b, 28a-b) to store.

2. Device according to claim 1, characterized by at least one cross member (30a-b), which is provided in the row direction (26a-b) adjacent functional modules (20a-b) together in the web direction (18a-b) in the mutually adjustable distances (24a-b) store.

3. Apparatus according to claim 1 or 2, characterized in that the

Storage unit (22a-b) is provided to interchangeably store at least a portion of the functional modules (20a-b).

4. Device according to one of the preceding claims, characterized in that the bearing unit (22a-b) has a guide system (32a-b) on which functional modules (20a-b) in the web direction (18a-b) are displaceably mounted. Device according to one of the preceding claims, characterized by at least one drive unit (34a-b), which is provided, at least one distance (24a-b) along the web direction (18a-b) at least two in the web direction (18a-b) successive functional modules (20a-b).

Device according to one of the preceding claims, characterized by a control unit (36a-b), which is provided, the distances (24a-b) at least two in the web direction (18a-b) successive function modules (20a-b) in the web direction (18a-b). b) set at least partially automated depending on a bag format to be formed.

Device according to one of the preceding claims, characterized in that the bearing unit (22a-b) is provided to store a variable number of tracks (12a-b) of functional modules (20a-b).

Device according to one of the preceding claims, characterized in that the bearing unit (22a) and / or at least a part of the functional modules (20a) receptacles (38a) for at least one format gauge (40a), which is intended, at least during a format change distances (28a) corresponding function modules (20a) of adjacent webs (12a) in the row direction (26a) set.

Packaging machine (42a-b) with a device (10a-b) according to one of claims 1 to 8.

Method for forming a plurality of webs (12a-b) from bags (14a-b), such as 3-edge sealed bags, in particular stick-packs, or 4-edge sealed bags, in particular sachets, from at least one material web (16a) b), in which a plurality of functional modules (20a-b) mounted in a web direction (18a-b) along each of the webs (12a-b) for forming the bags (14a-b) each carry out at least one operation on the respective web ( 12a-b), wherein distances (24a-b) of the functional modules (20a-b) along the web direction (18a-b) and / or distances (28a-b) in a row direction (26a-b) transversely to the web direction (18a -b) depending on a bag format to be formed.