DE10105486A1 - Method and device for producing packages with an outer wrapper - Google Patents

Abstract

When producing packs with outer wrappings that have a tear strip (12), these or continuous material strips (18) for separating the tear strips (12) are provided with printing, markings (24) etc. In addition, the film webs (13) are preferably provided with markings, printing or printing marks (25). With the help of feelers, the relative position is recognized on the basis of these prints and the drive of the film web (13) and / or the material strip (18) is then controlled.

Description

The invention relates to a method for producing packs with an outer wrapper made of (clear) film and with an opening attached to the outer casing tear strips, with blanks for the outer wrapping of a continuous film web with tear strips. The invention further relates to a Vorrich to carry out the procedure.

Packs with contents of various types are often covered with an outer wrapper in particular provide clear film that is removed with the help of a tear strip can be. The tear strip usually has a marking recorded handle end.

The invention is concerned with measures for attaching the tear strip to the Outer wrapping or on the film web for producing the same and with the Production of the blanks.  

The invention has for its object to take measures for an exact Positioning the tear strip and / or the exact manufacture of the with tear strips provided blanks.

To achieve this object, the method according to the invention is characterized by the following features:

• a) a continuous strip of material for the production of the tear strip is included Positioned markings, markings or the like Mistake,
• b) the prints, markings etc. are printed by a sensor brand reader - scanned,
• c) the exact position of the tear strip on the film web and / or a Separation cut to separate the blanks with tear strips from the foils bahn is ge according to the recognized printing, markings, etc. controls.

This printing can be simple colored or high-contrast markings act, also around the marking of the handle end of a tear strip. It can but also be informative printing, advertising or manufacturer information, which one Form a tactile marking on the material strip. This is through optoelectronic Sensors, namely print mark readers, are recognized and used to control the conveyor drive for the film web and / or the material strip used or for controlling Separators for separating tear strips from the material strip or from Zu cut from the film web. If the film web or the material strip itself are influenced, this takes place via appropriately controlled drive of conveying bodies, especially conveyor rollers.

Another special feature of the invention are measures for a two-track loading drove example. A double-wide film web is cut in the middle to form individual ones Film webs. Each of these film webs becomes a strip of material for the tear strip made available. The two separate tear strips or material strips can NEN either separately from two separate bobbins or by separating one in the middle double wide strips of material are made available to the film webs.  

A special feature is the handling of the tear strips or the size material web for producing the tear strips in two-web mode of operation. It is him provided according to the invention that each film web or each strip of material Strip bobbin is assigned, from the material strip for each film web in exact, synchronously controlled movement. The material strips are on the Strip bobbins wrapped in a matching structure, in particular in such a way that Synchronization of the strip bobbins, the material strips always in a parallel relay tivstellung be deducted from the assigned bobbin. It is particularly important Arrangement of the two bobbins on a common carrier, in particular on one common, appropriately sized bobbin case.

According to a further special feature, the material web with Be Printings or markings provided by assigned print mark readers be felt. This increases the accuracy of the control for exact Positioning of tear strips and / or separating cuts possible.

Further details of the invention are described below with reference to the drawings shown execution and application examples. It shows:

Fig. 1 shows a packaging machine for the application of outer wrappers in simplified side view,

Fig. 2 is a labeled in FIG. 1, detail of the packaging machine in ver enlarged scale,

Fig. 3 is a view analogous to FIG. 2 for another embodiment of the packaging machine,

Fig. 4 is a view analogous to FIG. 2 and FIG. 3 for a third Ausführungsbei game,

Fig. 5 shows the material flow for the embodiment of Fig. 2 in perspec TiVi shear representation,

Fig. 6 shows the variation of the material flow to the exemplary embodiment of FIG. 3, also in perspective,

Fig. 7 is a view analogous to FIG. 6 with modified material flow,

Fig. 8 shows another alternative to FIG. 6 and FIG. 7 tion regarding the Materialfüh,

Fig. 9 is a particular solution for material handling in a representation analogous to Fig. 8,

Fig. 10 is a simplified plan view of a detail of Fig. 9.

The exemplary embodiments in the drawings deal with the production of square (cigarette) packs 10 with a customary outer covering made of thin, transparent film. The packs 10 can be of the hinge-lid or soft cup type. However, other types of packs are also provided with an outer covering.

The outer wrapping surrounding the pack 10 on all sides is formed by a blank 11 which completely surrounds the pack. In an upper area of the pack 10 facing an end wall, the outer casing or the blank 11 is provided with a tear strip 12 running all around, which facilitates the opening or removal of the outer casing for the consumer. The tear strip 12 is provided at one outer end with a graspable handle end, which is identified by a colored marking.

The packaging machine for attaching the outer wrapper to the packs 10 processes a continuous film web 13 made of thin, tearable film. The blanks 11 are separated from this in the region of a blanking station 14 and transferred to the packs 10 . The film web 13 is continuously drawn off from a respectively active bobbin 15 . A replacement bobbin 16 is available in each case.

The film web 13 is guided over a multiplicity of deflection rollers and over a compensating spool 17 . The latter enables compensation in the event of an increased or reduced conveying speed of the film web 13 .

The tear strip 12 is separated from a correspondingly formed continuous material 18 strips. This is also subtracted from a strip bobbin 19 . Before preferably the material strip 18 is coated on one side with an adhesive, which enables a connection of the material strip 18 or the tear strip 12 separated therefrom to the film web 13 by gluing.

The packs 10 coming from a packaging machine are fed to the cutting station 14 on a packing track 20 . Here, the blank 11 separated from the film web 13 is kept ready in an upright plane, specifically by suction belts of the 21st The respective pack 10 is conveyed across the plane of the section 11 held ready, the blank 11 being carried by the pack 10 in a U-shaped envelope and both being pushed into a folding turret 22 . On the opposite side, the packs 10 provided with the blank 11 or the outer covering emerge from the folding turret 22 .

The tear strip 12 can be connected to the film web 13 or the blank 11 in various ways. So it is possible to bring the continuous Ma material strip 18 to the film web 13 and to connect it. A separating unit 23, each with a revolving blade and a fixed Ge genmesser then disconnects with the blank 11 and the tear strip 12 from the Ma terialstreifen 18 from (solution according to Fig. 2 and Fig. 5).

As an alternative, it is provided that tear-off strips 12 which are correctly designed with regard to their length are cut off from the (free) material strip 18 and these are then positioned exactly on the film web 13 . The process performed in the region of the separating unit 23 separating cut is executed in this case between adjacent facing ends of tear strip 12 (solution according to Fig. 4 and Fig. 7).

A special feature is that the material strip 18 for the manufacture of the tear strips 12 is provided with at least one imprint. This is applied during the industrial production of the material strip 18 by means of suitable printing units. These can be markings, namely colored or black marks. Advantageously, the material strip 18 is provided with markings for the end of the handle which are positioned precisely at intervals from one another. Alter native or in addition, prints with content or decorative design can be attached, for example manufacturer information, etc. In addition, according to a further development, the film web 13 is provided with prints, markings or the like, which are also posi in the production of the film web 13 be attached exactly. Here, too, it can be informative or decorative printing, but in the simple case it can be printing marks 25 .

It is now a question of, on the one hand, positioning the tear strip 12 with respect to the prints in an exact relative position to the blank 11 and, on the other hand, making a correct separating cut, that is to say producing a blank 11 which is correctly designed in terms of the prints and markings.

For this purpose, the existing prints, markings etc. are scanned by optoelectronic touch sensors. The scanned data about any rela tive positions of the prints, markings etc. are used to adjust the film web 13 , the material strip 18 , the tear strip 12 or the separating cut ver.

In the embodiment according to FIG. 2, the film web 13 provided with the material strip 18 is assigned a print mark reader 26 which detects printings or markings 24 in the region of the material strip 18 and detects any misalignments. The print mark reader 26 is connected to a known evaluation unit (not shown). This in turn controls the conveying movement of the film web 13 to measure any deviations found. In the exemplary embodiment according to FIG. 2 (and FIG. 5), these relate to the correct positioning of the separating cut by the separating unit 23 . Misalignments are compensated for by a change in the drive of the foil web 13 . For this purpose, the film web 13 is conveyed in the area adjacent to the cutting station 14 by drive rollers 27 , 28 , of which at least one drive roller 28 is connected to a controllable drive, namely a servo motor 29 . If necessary, this changes the advance of the film web 13 in one direction or the other in accordance with the data recorded by the print mark reader 26 , with the result of a correspondingly changed positioning of the separating cut. The drive roller 28 is provided for this purpose with a suitable outer coating made of a material with increased frictional resistance, for example rubber material, plastic or silicone.

In the solution according to FIG. 3, in addition to the material strip 18 , the film web 13 is also provided with prints, namely, for example, with print marks 25 . These are recognized by an assigned print mark reader 30 , which is positioned here on the side opposite the print mark reader 26 . The print mark reader 30 is also connected to the evaluation unit. The interaction of the print mark readers 26 and 30 makes it possible to additionally recognize the relative position of the tear strip 12 or the material strip 18 on the blank 11 or the film web 13 and to adjust them if necessary.

For this purpose, the conveying movement of the material strip 18 is controlled before it is connected to the film web 13 . The material strip 18 is directed around a first conveyor roller 31 and then around a second conveyor roller 32 . A sufficient deflection of the material strip 18 in the region of the conveyor rollers 31 , 32 is in each case by two deflection rollers arranged on both sides of the conveyor rollers 31 , 32 acts.

The conveyor roller 31 is connected to a controllable drive, namely a servo motor 33 . This can be controlled by the print mark readers 26 and / or 30 . The servo motor 33 or the conveyor roller 31 interacts with the conveyor roller 32 , which is driven by a motor 34 , which can also be a servo motor. Both conveyor rollers 31 and 32 are formed on the surface in such a way that they can transmit a driving force on the material strip 18 . The servo motor 33 can be controlled to change the relative position of the tear strip 12 or the printing (marking 24 ) attached to it. In particular, misalignments are compensated for in that the conveyor roller 31 is driven at a slightly lower speed than the conveyor roller 32 , so that a slight stretching of the material strip 18 is effected with a correspondingly slight change in the position of the printing, markings 24, etc. An adjustment in this way is carried out in several fonts or over a certain period of time in small steps, so that the stretching or stretching of the material strip 18 is insignificant.

Fig. 4 and Fig. 7 show a solution in which the tear strips 12 are separated from the material strips 18 and then transferred to the film web 13 in the correct position. For this purpose, the film web 13 is guided over a suction roller 35 , which also transports the individual tear strips 12 along the circumference and applies them to the film web 13 . The adhesive layer of the tear strip 12 is tet towards the outside.

The suction roller 35 is arranged upstream of a separating unit, namely a revolving knife roller 36, 35 a as to tear strip 12 serving portion of the strip of material 18 is separated and roller to the suction passes in cooperation with the circumference of the suction roll 35th

In this exemplary embodiment, tear strips 12 or material strips 18 and film web 13 are provided with printing, markings or printing marks which are to be coordinated with one another. For the correct separating cut in the area of the cutting station 14 , the print mark reader 26 is assigned to the markings 24 . The printing of the film web 13 , for example the print mark 25 , assigned print mark reader 30 controls a drive of the material strip 18 , namely a conveyor roller 37 , which is driven by a controlled servo motor 38 . By Lenkwal zen sufficient wrap around the conveyor roller 37 is ensured. This is positioned in the conveying direction of the material strip 18 immediately adjacent to the knife roller 36 . The conveying roller 37 can be driven in accordance with recognized misalignments of the printing in the sense of a higher or a reduced conveying speed. At a lower conveying speed, small, negligible gaps may occur between the tear strips 12 resting on the film web 13 . The organs involved in the conveyance of the material strip 18 or the tear strip 12 , namely the suction roller 35 and the knife roller 36 , are driven ma machine-controlled at a constant speed. Since in the area of the metering roller 36, slight slip can occur due to the change in the conveying movement of the material strip 18 and the material strip 18 with the glue have the side against the circumference of the cutter roller 36 , this is provided with a special surface coating, in particular made of silicone.

Another special feature is apparent from the perspective views shown in FIG. 5 to FIG. 9. After that, a two lane operation is provided. Accordingly, two blanks 11 (with tear strips 12 ) are produced at the same time. For this purpose, two film webs 13 are fed to the cutting station 14 in the same plane at a distance from one another in the transverse direction. The two film webs 13 are produced by a double web 39 by central separation with a fixed knife 40 and spreading conveyance.

Analog to this, the two film webs 13 each have strips of material 18 to be fed at a corresponding distance from one another. Different solutions are possible for this.

In the exemplary embodiment according to FIG. 5, a double strip 41 is made available, that is to say a material strip of double width. This is provided in its full width with the desired or required printing, for example with markings 24 , such that after division of the double strip 41 into the material strips 18, each material strip 18 has the printing or markings 24 . The double strip 41 is guided over deflection rollers of a compensating pendulum 42 to a separation station. In the area of the double strip 41 is severed in the middle by a umlau fendes, circular knife 43 , which works together with a support roller 44 . The separating cut is carried out in the region of a circumferential groove of the support roller 44 . By feeding the formed (two) strips of material 18 to further deflection rollers arranged at an axial distance from one another, the spreading of the strips of material 18 takes place, so that they are conveyed from one another at the distance required for attachment to the film web 13 .

Each of the film webs 13 can be assigned a monitoring device with print mark readers 26 , 30 in the embodiment described. However, it has been recognized that a sufficiently precise control of both film webs 13 with respect to tear strips 12 is possible if only one film web 13 is checked. This applies in the embodiment according to FIG. 5 for the markings attached to the tear strip 12 , but also for the prints according to FIGS . 6, 7 and 8 on the film web 13 , for example printing marks 25 , which are accordingly off-center on the double web 39 are attached and after separation only on one of the two sheets 13 are present.

FIG. 6 shows a perspective view of the material flow for the embodiment of FIG. 3, that is to say with a control of the movement of the material strip 18 or of the double strip 41 by the conveyor rollers 31 and 32 . The central division of the double strip 41 takes place after the compensation pendulum 42 , in the manner described in connection with FIG. 5.

FIG. 7 is the perspective illustration of the exemplary embodiment according to FIG. 4, but without illustration of the conveyor roller 37 . The double strip 41 drawn from a common bobbin, namely strip bobbin 19 , is divided before the separation of tear strips 12 , that is, in the conveying direction in front of the knife roller 36 . The material strips 18 formed are spaced apart and separate knife rollers 36 and subsequent suction rollers 35 supplied, as described in detail in connection with FIG. 4.

As shown in FIG. 8 by dashed lines, the second film web 13 or the tear strips 12 or strips of material 18 attached to it can be assigned an independent print mark reader 26 which detects the marks 24 on the material strips 18 or tear strips 12 .

FIG. 8 shows a special feature with regard to the feeding of the material strip 18 for the tear strip 12 in a two-lane mode of operation. On a common Stripe bo bine 19 , two strips of material 18 , each for the production of tear strips 12 , are co-wound, in such a way that the two strips of material 18 can be deducted from the strip reel 19 in parallel and at the same time. The two material strips 18, which initially run side by side with a smaller distance apart, are moved apart via deflecting gears, specifically by deflecting rollers 45 , 46 rotating about upright axes. The strips of material 18 are guided at right angles here and spaced apart. Subsequently, the two strips of material 18 each arrive at the associated compensating pendulums 42 and then, as in the exemplary embodiment in FIG. 7, to the separate film webs 13 .

A special feature is shown in FIG. 9 and FIG. 12 of the material for the tear strips 10 shown in view of handling, namely for a two-track operation of the plant. The basic idea realized is that there are two separate bobbins for the tear strips 12 , namely strip bobbins 47 , 48 . Each of these stripes 47 , 48 provides a strip of material 18 for producing the tear strips 12 . It is provided that, due to the winding of the material strip 18 on these strip bobbin 47 , 48, the two material strips 18 drawn off run synchronously and in particular parallel to one another, so that the two material strips 18 also always coincide with regard to the markings 24 arranged on them, namely with the same The relative position of the markings 24 extend until they are transferred to the two assigned film webs 13 .

The two strip reels 47 , 48 can be mounted separately on their own (driven) supports, in particular pins. A special feature is the solution shown in FIGS. 9 and 10, in which the two strip bobbins 47 , 48 are arranged on a common, continuous, ie one-piece bobbin sleeve 49 . This bobbin sleeve 49 can be made of cardboard, plastic or metal. The unit from bobbin sleeve 49 and strip bobbins 47 , 48 is mounted on a common support pin 50 corresponding length. The trunnion 50 is a cantilevered gantry of the packaging machine. The relative position of the bobbin case 49 or the two strip bobbins 47 , 48 is determined by a flanged disk 51 attached to the support pin 50 .

The two strip reels 47 , 48 are separated by a relatively narrow separation gap 52 . During manufacture, both strip bobbins 47 , 48 are formed simultaneously on the bobbin tube by winding, the winding structure of the material strips 18 being the same on both strip bobbins 47 , 48 .

Due to the dimensions and the winding structure of the strip bobbins 47 , 48, the two parallel strips of material move back and forth during unwinding. The material strips 18 run over first support rollers 53 , which have a corresponding axial dimension in accordance with the transverse movement amplitude of the material strips 18 . The material strips 18 are then deflected via a deflection roller 54 into a parallel position which is aligned with the two film webs 13 . The material strips 18 are ge on the underside of the deflection rollers 54 leads. This is followed by the compensation pendulum 42 described in connection with the previous embodiments.

Deviating from the above exemplary embodiments, the two parallel strips of material 18 are passed after the respective compensating pendulum 42 over pressure rollers 55 , 56 - corresponding to the embodiment of FIG. 6. The facing pressure roller 56 also serves as a deflection element for the material strips 18 , namely from the horizontal feed plane into the upright downward conveying plane of the film webs 13 . In the area of the deflection, the material strip 18 is pressed between the two pressure rollers 55 , 56 with the adhesive-containing side against the film web 13 and thus connected to it. In the area of the subsequent separating unit 23 , the blank 11 and the tear strip 12 are separated.

LIST OF REFERENCE NUMBERS

10

pack

11

cut

12

tear

13

sheet

14

blank station

15

reel

16

replacement reel

17

balance shuttle

18

strips of material

19

Streifenbobine

20

packing sheet

21

suction belt

22

folding turret

23

separating unit

24

mark

25

print mark

26

Print Mark

27

drive roller

28

drive roller

29

servomotor

30

Print Mark

31

conveyor roller

32

conveyor roller

33

servomotor

34

engine

35

suction roll

36

knife roll

37

conveyor roller

38

servomotor

39

dual track

40

knife

41

double strip

42

balance shuttle

43

knife

44

supporting role

45

idler pulley

46

idler pulley

47

Streifenbobine

48

Streifenbobine

49

bobbin core

50

supporting journal

51

flanged wheel

52

separating gap

53

supporting roll

54

deflecting

55

pressure roller

56

pressure roller

Claims (15)

1. A method for producing packs ( 10 ) with an outer wrapping made of (transparent) film and with a tear strip ( 12 ) attached to the outer wrapper, wherein blanks ( 11 ) for the outer wrapping of a continuous film web ( 13 ) with tear strips ( 12 ) be separated, characterized by the following features:

• a) a continuous strip of material ( 18 ) for the production of the tear strips ( 12 ) is provided with precisely positioned printing, markings ( 24 ) or the like,
• b) the prints, markings ( 24 ) etc. are scanned by a sensor - print mark reader ( 26 ),
• c) the exact position of the tear strip ( 12 ) on the film web ( 13 ) and / or a separating cut for separating the blanks ( 11 ) from the film web ( 13 ) is controlled in accordance with the recognized prints, markings etc.

2. The method according to claim 1, characterized in that (also) the film web ( 13 ) has prints, markings, print marks ( 25 ) or the like and that these prints, print marks ( 25 ) etc. by sensors - print mark readers ( 30 ) - Scanned, preferably by separate print mark readers ( 30 ) assigned to these prints, print marks ( 25 ) of the film web ( 13 ). 3. The method according to claim 1 or 2, characterized in that the printed by the sensors or print mark readers ( 26 , 30 ) prints, markings ( 24 ) and / or print marks ( 25 ) for controlling the drive of the film web ( 13 ) and / or the material strip ( 18 ) can be evaluated. 4. The method according to claim 1 or one of the further claims, characterized in that to change the position of the tear strip ( 12 ) or the printing, markings ( 24 ) etc. attached to the tear strip ( 12 ) or the material strip ( 18 ) is stretched or stretched to produce the tear strip ( 12 ). 5. The method according to claim 1 or one of the further claims, characterized in that in two-lane mode of operation two material strips ( 18 ) for the manufacture of tear strips ( 12 ) are each deducted from an associated strip bobbin ( 47 , 48 ), the strip bobbins ( 47 , 48 ) have a matching winding structure of the material strips ( 18 ) and are driven synchronously when they are pulled off if the relative position of the material strips ( 18 ) is identical. 6. Device for producing packs ( 10 ) with outer wrapping made of special clear film in particular and with a tear strip ( 12 ) attached to the outer wrapper, preferably also made of clear film, with cuts ( 11 ) for the outer wrapping of a continuous film web ( 13 ) can be detached with the tear strip ( 12 ) attached to it, characterized by the following features:

• a) the material strip ( 18 ) for producing the tear strips ( 12 ) - see from the inside - with printing, markings ( 24 ), printing marks or the like,
• b) the film web ( 13 ) are positioned in the region of the movement path of the material strip ( 18 ) connected to the film web ( 13 ) or the tear strip ( 12 ) sensors - print mark readers ( 26 ) - for scanning the printing, markings ( 24 ), etc. on the material strip ( 18 ) or on the tear strip ( 12 ),
• c) the sensors - print mark readers ( 26 ) - are connected to an evaluation unit for evaluating the recognized positions of the prints, markings ( 24 ) etc.,
• d) Drive elements for the material strip ( 18 ) and / or the film web ( 13 ) can be controlled by the sensors or print mark readers ( 26 ) via the evaluation unit.

7. The device according to claim 6, characterized in that at least two sensors - print mark readers ( 26 , 30 ) - for detecting prints, markings ( 24 ), print marks ( 25 ) etc. of both the material strip ( 18 ) and the tear strip ( 12 ) and the film web ( 13 ) are provided, printing, printing marks ( 25 ) etc. of the film web ( 13 ) offset to the material strip ( 18 ) or to the tear strips ( 12 ) are positioned. 8. The device according to claim 6 or 7, characterized in that Förderor gane for the material strip ( 18 ) and / or with material strips ( 18 ) or tear strips ( 12 ) equipped film web ( 13 ) by the sensors - print mark readers ( 26 , 30 ) - can be controlled with regard to a change in the drive speed of the film web ( 13 ) and / or material strips ( 18 ). 9. The device according to claim 8 or one of the further claims, characterized in that the film web ( 13 ) and / or the material strip ( 18 ) assigned drive rollers ( 28 ) or conveyor rollers ( 31 , 37 ) by controllable servomotors ( 29 , 33 ) can be driven, the servo motors ( 29 , 33 ) being controllable by the print mark readers ( 26 , 30 ). 10. The device according to claim 9 or one of the further claims, characterized by the following features:

• a) a controllable drive roller ( 28 ) is arranged in the region of the film web ( 13 ) equipped with tear strips ( 12 ) or material strips ( 18 ), preferably directly in front of a cutting station ( 14 ),
• b) a further controllable conveyor roller ( 31 ) is positioned in the area of the material strip ( 18 ),
• c) Both drive elements - drive roller ( 28 ) and conveyor roller ( 31 , 37 ) - can be controlled by the tear strip ( 12 ) or the material web ( 18 ) on the one hand and the film web ( 13 ) on the other hand associated sensors - print mark readers ( 26 , 30 ) ,

11. The device according to claim 10 or one of the further claims, characterized in that a controllable conveyor roller ( 37 ) for the material strip ( 18 ) be positioned adjacent to a separating unit for separating tear strips ( 12 ) from the material strip ( 18 ), in particular adjacent to a knife roller ( 36 ). 12. The device according to claim 6 or one of the further claims, characterized in that blanks ( 11 ) with tear strips ( 12 ) can be produced in two-lane operation, whereby two parallel-running film webs ( 13 ) from a double web ( 39 ) by central separation and from a double strip ( 41 ) two parallel material strips ( 18 ) can be produced by cutting and both film webs ( 13 ) and material strips ( 18 ) can be controlled by separate conveying elements by common sensors - print mark readers ( 26 , 30 ). 13. The apparatus according to claim 6 or one of the further claims, characterized in that two separate material strips ( 18 ) from a common strip bobbin ( 19 ) or from two separate, arranged axially spaced strip bobbins ( 19 ) are peelable for double-lane operation. 14. The apparatus according to claim 13, characterized in that when pulling two separate strips of material ( 18 ) from a common strip bobbin ( 19 ) deflection members are provided for transverse deflection of the closely adjacent material strips ( 18 ) in a corresponding to the film webs ( 13 ) from stood from each other, preferably around rotating axes rotating pulleys ( 45 , 46 ). 15. The apparatus according to claim 6 or one of the further claims, characterized in that in two-lane mode of operation two strip bobbins ( 47 , 48 ) for a material strip ( 18 ) are arranged on a common carrier, in particular on a common, continuous bobbin case ( 49 ), such that the stripe fenobobinen ( 47 , 48 ) when pulling off the material strips ( 18 ) always perform matching rotary movements.