EP1209083A2 - Method and device for manufacturing wrapped packages and bobine - Google Patents

Abstract

The method for producing flip-top cigarette packs wrapped in film with a tear-strip (12) uses a continuous tape (18) of tear-strip material with precisely positioned printing or marks (24). A sensor (26) detects these and controls the placing of the strip on a continuous band (13) of film or on sections (11) cut from it. Independent claims are included for: (a) a machine for carrying out the process; and (b) a bobbin for use in the process

Description

The invention relates to a method for producing packs with an outer wrapper made of (clear) film and with a tear strip attached to the outer wrapping, with blanks for the outer wrapping of a continuous film web can be separated with tear strips. The invention further relates to a device to carry out the method and a specially trained bobbin for a strip of material.

Packs with contents of different types, especially cigarette packs, are many provided with an outer covering made of, in particular, transparent film, which with Can be removed with the help of a tear strip. The tear strip usually has a colored handle end.

The invention is concerned with measures for attaching the tear strip to the Outer wrapping or on the film web for producing blanks for outer wrappings.

The invention has for its object to take measures for optimal provision and exact positioning of the tear strip and / or for the exact manufacture the blanks with tear strips.

a) ein fortlaufender Materialstreifen für die Herstellung des Aufreißstreifens ist mit positionsgenau angebrachten Bedruckungen, Markierungen oder dergleichen versehen,

b) die Bedruckungen, Markierungen etc. werden durch einen Sensor - Druckmarkenleser - abgetastet,

c) die genaue Position des Aufreißstreifens an der Folienbahn und/oder ein Trennschnitt zum Abtrennen der Zuschnitte mit Aufreißstreifen von der Folienbahn wird nach Maßgabe der erkannten Bedruckungen, Markierungen etc. gesteuert.

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

a) a continuous strip of material for the manufacture of the tear strip is provided with precisely positioned printing, markings or the like,

b) the printings, markings etc. are scanned by a sensor - print mark reader,

c) the exact position of the tear strip on the film web and / or a cut for separating the blanks with tear strips from the film web is controlled in accordance with the recognized printing, markings etc.

This printing can be simple colored or high-contrast markings or trade marks. However, informational printing, advertising or manufacturer information, which is a scannable marking on the material strip form. This is recognized by optoelectronic sensors, namely print mark readers and to control the conveyor drive for the film web and / or the material strip used or for the control of separators for tearing tear strips from the material strip or from cuts from the film web. If the film web or the material strip itself is influenced, this is done accordingly controlled drive of conveyor elements, in particular conveyor rollers.

Another special feature of the invention is measures for a two-track mode of operation. 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 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.

It is advantageous if each strip of material is assigned a strip bobbin, from which Strips of material for each film web are pulled off in an exact, synchronously controlled movement become. The strips of material are in line on the strip reels Structure wound, in particular in such a way that when the strip bobbins run in sync, the material strips always in a parallel relative position from the assigned bobbin subtracted from. The arrangement of the two bobbins on one is particularly important common carrier, in particular on a common, appropriately dimensioned Bobbin core.

According to a further special feature, the material web is also provided with printing or markings that are scanned by assigned print mark readers become. This increases the accuracy of the control for exact Positioning of tear strips and / or separating cuts possible.

Fig. 1

eine Verpackungsmaschine zum Anbringen von Außenumhüllungen in vereinfachter Seitenansicht,

Fig. 2

einen in Fig. 1 markierten Ausschnitt der Verpackungsmaschine in vergrößertem Maßstab,

Fig. 3

eine Darstellung analog Fig. 2 für ein anderes Ausführungsbeispiel der Verpackungsmaschine,

Fig. 4

eine Darstellung analog Fig. 2 und Fig. 3 für ein drittes Ausführungsbeispiel,

Fig. 5

den Materialverlauf für das Ausführungsbeispiel gemäß Fig. 2 in perspektivischer Darstellung,

Fig. 6

den Verlauf des Materialflusses zu dem Ausführungsbeispiel gemäß Fig. 3, ebenfalls in Perspektive,

Fig. 7

eine Darstellung analog Fig. 6 mit verändertem Materialfluss,

Fig. 8

eine Darstellung analog Fig. 3 bzw. Fig. 4 in einer modifizierten Ausführung,

Fig. 9

Einzelheiten der Ausführung gemäß Fig. 8 in Draufsicht, bei vergrößertem Maßstab,

Fig. 10

eine Darstellung analog Fig. 9 einer anderen Ausführungsform hinsichtlich der Bereitstellung von Aufreißstreifen,

Fig. 11

ein Detail zu dem Ausführungsbeispiel gemäß Fig. 10,

Fig. 12

eine Alternative mit einer einzigen Streifenbobine,

Fig. 13

eine (Zigaretten-)Klappschachtel als Anwendungsbeispiel in perspektivischer Darstellung.

Further details of the invention are shown below with reference to exemplary embodiments and application examples shown in the drawings. It shows:

Fig. 1

a packaging machine for attaching outer wrappers in a simplified side view,

Fig. 2

2 shows a section of the packaging machine marked in FIG. 1 on an enlarged scale,

Fig. 3

2 for another embodiment of the packaging machine,

Fig. 4

2 and 3 for a third exemplary embodiment,

Fig. 5

2 shows the material flow for the exemplary embodiment according to FIG. 2 in a perspective illustration,

Fig. 6

the course of the material flow to the embodiment of FIG. 3, also in perspective,

Fig. 7

6 with a changed material flow,

Fig. 8

3 shows a representation analogous to FIG. 3 or FIG. 4 in a modified embodiment,

Fig. 9

8 in plan view, on an enlarged scale,

Fig. 10

9 shows a representation analogous to FIG. 9 of another embodiment with regard to the provision of tear strips,

Fig. 11

10 shows a detail of the exemplary embodiment according to FIG. 10,

Fig. 12

an alternative with a single strip bobbin,

Fig. 13

a (cigarette) folding box as an application example in a perspective view.

The exemplary embodiments in the drawings deal with the production of cuboid (Cigarette) packs 10 with a conventional outer wrapper made of thin, clear film. The packs 10 can be of the hinge-lid type (Fig. 13) or soft cup. But there are also other types of packs provided with an outer covering.

The outer wrapping surrounding the pack 10 on all sides is made by a blank 11 formed, which completely surrounds the pack. In a facing end wall, The upper area of the pack 10 is the outer covering or the blank 11 with a provided tear strip 12 all around. The tear strip 12 is on one outer end with a detectable handle end 57, which is marked by a color 58 is marked.

The packaging machine for attaching the outer wrapper to the packages 10 processes a continuous film web 13 made of thin, tearable film. Of this the blanks 11 are cut off in the region of a blanking station 14 and passed to the Hand packs of 10. The film web 13 is continuously activated by one Pulled off Bobine 15. A replacement bobbin 16 is available in each case.

The film web 13 is over a plurality of deflection rollers and a compensating pendulum 17 out. The latter enables compensation in the event of increased or reduced conveying speed of the film web 13.

The tear strip 12 is made of a suitably designed continuous material strip 18 separated. This is also subtracted from a strip bobbin 19. Preferably the material strip 18 is coated on one side with an adhesive, the one Connection of the material strip 18 or the tear strip 12 separated therefrom with the film web 13 made possible by gluing.

The packs 10 coming from a packaging machine are on a Packing web 20 fed to the cutting station 14. Here is the film from the 13th separated blank 11 held ready in an upright plane, by suction belts 21. The respective pack 10 is cut across the plane of the blank being kept ready 11 conveyed through, the blank 11 with a U-shaped envelope of Pack 10 carried by this and both inserted into a folding turret 22 become. On the opposite side, the cut 11 or Packings 10 provided from the outer turret 22.

The tear strip 12 can in various ways with the film web 13 or Blank 11 can be associated. So it is possible to use the continuous strip of material 18 lead to the film web 13 and connect to it. On Separating unit 23, each with a rotating knife and a fixed counter knife then also cuts the tear strip 12 from the material strip with the blank 11 18 from (solution according to FIG. 2 and FIG. 5).

As an alternative, it is provided that of the (free) material strip 18 with respect to the Correctly formed tear strips 12 separated and then positioned exactly be applied to the film web 13. The in the area of the separation unit 23rd In this case, the cut is carried out between the ends facing each other Adjacent tear strip 12 executed (solution according to Fig. 4 and Fig. 7).

A special feature is that the material strip 18 for producing the tear strips 12 is provided with at least one imprint. This will applied in industrial production of the material strip 18 by suitable printing units. These can be markings, namely colored or black ones Brands. Advantageously, the material strip 18 is positioned precisely at intervals markings for the end of the handle. Alternatively or additionally can print with content or decorative design attached be, for example, manufacturer information etc. In addition, according to a further development also the film web 13 with prints, markings or the like provided, which are also attached precisely in the manufacture of the film web 13 become. Again, it can be informative or decorative prints, in the simple case, however, act as print marks 25.

It is now a question of, on the one hand, the tear strip 12 with regard to the printing on to position the exact relative position to the blank 11 and on the other hand a correct one Make a separating cut, i.e. one with regard to the prints and markings produce correctly formed blank 11.

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

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

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

For this purpose, the conveying movement of the material strip 18 before the connection controlled with the film web 13. The material strip 18 is around a first conveyor roller 31 and then guided around a second conveyor roller 32. Adequate The material strip 18 is deflected in the region of the conveyor rollers 31, 32 in each case caused by two deflection rollers arranged on both sides of the conveyor rollers 31, 32.

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 and the conveyor roller 31 cooperate with the conveyor roller 32, the is driven by a motor 34, which is also a servo motor can act. Both conveyor rollers 31 and 32 are formed on the surface so that they can transmit a driving force on the material strip 18. The servo motor 33 can be used to change the relative position of the tear strip 12 or this attached printing (mark 24) can be controlled. In particular malpositions are compensated for by the fact that the conveying roller 31 also has is driven slightly lower speed than the conveyor roller 32, so that a slight stretching of the material strip 18 with a corresponding slight change the position of the prints, markings 24, etc. is effected. A Adjustment in this way is done in several steps or over a period of time carried out 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 from the material strip 18 separated and then transferred to the film web 13 in the correct position become. For this purpose, the film web 13 is guided over a suction roller 35, which is the individual tear strips 12 also transported along the circumference and to the film web 13 creates. The adhesive layer of the tear strips 12 is directed outwards.

A suction unit is arranged upstream of the suction roller 35, namely a rotating knife roller 36, the one in cooperation with the circumference of the suction roller 35 as a tear strip 12 serving section separates the material strip 18 and to the suction roller 35 passes.

In this embodiment, tear strips 12 or strips of material 18 and Foil web 13 provided with prints, markings or print marks, which one on top of the other are to be coordinated. For the correct cut in the area of the cutting station 14, the print mark reader 26 is assigned to the markings 24. The printing assigned to the film web 13, for example the print mark 25 Print mark reader 30 controls a drive of the material strip 18, specifically a conveyor roller 37, which is driven by a controlled servo motor 38. By steering rollers sufficient wrap around the conveyor roller 37 is ensured. This is in The conveying direction of the material strip 18 is positioned immediately adjacent to the knife roller 36. The conveyor roller 37 can according to recognized misalignments of the printing driven in the sense of a higher or a reduced conveying speed his. If the conveying speed is lower, small, negligible ones may be required Gaps occur between the tear strips 12 lying against the film web 13. Those involved in the promotion of the material strip 18 or the tear strip 12 Organs, namely the suction roller 35 and the knife roller 36, are machine-controlled driven at constant speed. Because in the area of the knife roller 36 by changing the conveying movement of the material strip 18 slightly Slip can occur and the material strip 18 with the glue Bears against the circumference of the knife roller 36, this is with a special Provide surface coating, especially made of silicone.

A special feature are measures for a two-lane operation with simultaneous Production of two blanks 11 (with tear strips 12). The cutting station 14 two foil webs 13 are spaced apart in the same plane in the transverse direction conveyed. The two film webs 13 are run through by a double web 39 central separation with a fixed knife 40 and spreading generated.

Analogously, the two film webs 13 are two strips of material 18 with a corresponding one Distance from each other.

5, a double strip 41 is available a double-width strip of material. It is printed in full width provided, for example with markings 24, such that after division of the double strip 41, each material strip 18 has the markings 24. The Double strip 41 is a deflection roller 42 of a separation station over deflection rollers fed. In its area, the double strip 41 is severed in the middle a rotating 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, in axially spaced from each other deflecting rollers spread the Strips of material 18 so that they are conveyed at the required distance from each other.

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

6 shows a perspective view of the material flow for the exemplary embodiment 3, that is, with a control of the movement of the material strip 18 or Double strip 41 through the conveyor rollers 31 and 32. The central severing of the Double stripe 41 takes place after the compensating pendulum 42, namely in the 5 described manner.

FIG. 7 is the perspective illustration of the exemplary embodiment according to FIG. 4, however without representation of the conveyor roller 37. That of a common bobbin, namely Strip bobbin 19 double strips 41 removed before the tear strips are separated 12, that is, divided in the conveying direction in front of the knife roller 36. The strips of material formed 18 are spaced apart and separate knife rollers 36 and subsequent suction rollers 35 fed, as in the context described with Fig. 4.

8 to 10 show special features with regard to the provision of material strips 18 for the production of the tear strips 12 in double-lane operation. It will two separate strips of material 18 at a time from a special strip bobbin 45 or deducted from a double bobbin with two single bobbins 46, 47 (FIG. 10). In the embodiment according to FIG. 9, as shown in detail in FIG. 12, there are two separate, printed material strips 18 directly adjacent and in more exact Relative position wound on the common strip bobbin 45. The two strips of material 18 are placed side by side at the same time and without changing the relative position unwound from the strip bobbin 45 and then separated from each other until for precise transfer to the assigned film webs 13.

The two closely adjacent material strips 18 initially run over a deflection roller 48, which is axially parallel to the strip bobbin 45 on a movable support, namely, a one-armed, curved or angular support lever 49 is mounted is. This is in a fixed position at one end remote from the deflection roller 48 Pivot bearing 50 mounted. The deflection roller is adjacent to the (variable) circumference the strip bobbin 45 is supported or lies against the circumference thereof.

The two strips of material 18 are deflected by the deflection roller 48 guided a first spreader, namely over two arranged at a short distance from each other Spreading rollers 51, 52 on a support rod connected to the support lever 49 are stored.

The two strips of material 18 then run - still at a short distance from one another - About a double role 53 as another management body. The one with two separate ones Raceways provided double roller 53 is above the strip reel 45 and the Support lever 49 and also above a compensation pendulum 54 with a plurality arranged by relatively movable pendulum rollers. Between the pendulum rollers of the compensating pendulum 54, fixed guide rollers 55, 56 are mounted. These have depressions arranged along the circumference for guiding the two Material strips 18 with increasing distance from each other. Then follow in the direction of conveyance two guide members with pairs of guide rollers 59, 60. These are rotatable Bearing on fixed axes and with increasing distance in the conveying direction arranged from each other, so that there is a spreading of the two strips of material 18 is. The guide rollers 59 are in a lower area and the guide rollers 60 stored in an upper area, so that in each case a large wrap angle the material strip 18 is given. This also applies to the positioning of the in Direction of conveyance in front of deflection and guide elements.

The two material strips 18 are in the region of a deflecting roller of the (two) film webs 13, namely in the region of a merging roller 61 on the outside of the film webs 13 created. For this purpose is immediately adjacent, namely above the Merging roller 61 a guide for the two strips of material 18 attached, which guides exactly the required distance between the two strips of material 18th from each other. These are two with a guide groove Guide rollers 62 on a common support rod. Otherwise, the device 8, 9 in the sense of the examples described above, in particular corresponding to FIG. 2.

A special feature is shown in FIG. 10. For two-lane operation, there are two Material strips 18 wound on two separate bobbins, namely single bobbins 46, 47. The winding structure of the material strips 18 is identical, so that in synchronous controlled drive when unwinding the two strips of material 18, these are always parallel be performed at a specified distance from each other. A special feature according to Fig. 10 is that the two individual bobbins 46, 47 on a common support member are wound, namely on a common, sleeve-shaped bobbin core 63. Die the two individual bobbins 46, 47 are independent units with a short distance between them wound. In the manufacture of the individual bobbins 46, 47 on a common Bobbin core 63 is expediently created a matching winding structure, so that the two strips of material 18 parallel and in a corresponding relative position can be subtracted from markings from the two individual bobbins 46, 47. The Bobinenkem 63 rests with a usual center opening on a trunnion 65, which is driven in rotation.

The guide members for the two strips of material 18 are analogous to FIG. 9 formed so that the side view of FIG. 8 also on the embodiment 10 applies. There are only the spreading rollers 51, 52 in one of the positions Material strips 18 when unwinding the appropriate distance from each other on the common Support rod arranged and on this according to the winding structure and movable. Furthermore, the double roller 53 is broken down into two in a corresponding manner Distance from each other rollers 64. These bring about an alignment of the when unwinding across the width of the individual bobbins 46, 47 material strips 18 to a certain, parallel winding direction. The guide rollers 55 and 56 are in with provided a larger distance from each other arranged guide grooves. Corresponding are also the guide rollers 59 and 60 in the same, the distance between the two strips of material 18 spaced from each other. The guide rollers 62 are designed and arranged in the same way as in the embodiment 9. This also applies to the rest of the device.

The special design of the bobbins and their handling according to FIGS. 11 and Fig. 12 can also be used with other (narrow) material webs, if two or more webs are to be processed simultaneously and synchronously.

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

Streifenbobine

46

Einzelbobine

47

Einzelbobine

48

deflecting

49

support lever

50

pivot bearing

51

spreader

52

spreader

53

dual role

54

balance shuttle

55

guide roller

56

guide roller

57

handle end

58

color coding

59

leadership

60

leadership

61

Mating roll

62

leadership

63

Bobinenkem

64

role

65

supporting journal

Claims (18)

Method for producing packs (10), in particular cigarette packs of the hinged box type, with an outer wrapping made of (clear) film and with a tear strip (12) attached to the outer wrapping, with blanks (11) for the outer wrapping of a continuous film web (13) Tear strips (12) are 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) with tear strips (12) from the film web (13) is controlled in accordance with the detected prints, markings etc. , A method according to claim 1, characterized in that (also) the film web (13) has printings, markings, print marks (25) or the like and that these prints, print marks (25) etc. are scanned by sensors - print mark readers (30) -, preferably by separate print mark readers (30) assigned to these prints, print marks (25) of the film web (13). Method according to Claim 1 or 2, characterized in that the prints, markings (24) and / or print marks (25) scanned by the sensors or print mark readers (26, 30) for controlling the drive of the film web (13) and / or the Material strip (18) are evaluated. Method according to claim 1 or one of the further claims, characterized in that for changing the position of the tear strip (12) or the prints, markings (24) etc. attached to it, the tear strips (12) or the material strips (18) for Manufacture of the tear strip (12) is stretched or stretched. Method according to Claim 1 or one of the further claims, characterized in that, in the case of two-lane operation, namely when two blanks (11) are produced at the same time by separating two parallel foil webs (13), each with a tear strip (12), two material strips (18 ) each from an assigned bobbin, namely individual bobbins (46, 47) or from a common strip bobbin (45) and guided during transport to the two film webs (13) with a distance corresponding to the position on the two film webs (13) and at the same time and with the matching position of the markings (24) on the film webs (13). Device for producing packs (10) with an outer wrapping made of, in particular, transparent film and with a tear strip (12) attached to the outer wrapper, preferably also made of transparent film, with blanks (11) for the outer wrapping of a continuous film web (13) this attached tear strip (12) can be separated, characterized by the following features: a) the material strip (18) for producing the tear strips (12) is provided with prints, markings (24), printed 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 prints, 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. Apparatus 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. both of the material strip (18) and the tear strip (12) as the film web (13) is also provided, printing, printing marks (25) etc. of the film web (13) being offset from the material strip (18) or the tear strips (12). Apparatus according to claim 6 or 7, characterized in that conveyor elements for the material strip (18) and / or the film web (13) equipped with material strips (18) or tear strips (12) can be controlled by the sensors - print mark readers (26, 30) are regarding a change in the drive speed of the film web (13) and / or material strips (18). Device according to claim 8 or one of the further claims, characterized in that drive rollers (28) or conveyor rollers (31, 37) associated with the film web (13) and / or the material strip (18) can be driven by controllable servomotors (29, 33) The servomotors (29, 33) can be controlled by the print mark readers (26, 30). 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 immediately 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) , Apparatus according to claim 10 or one of the further claims, characterized in that a controllable conveyor roller (37) for the material strip (18) is positioned adjacent to a separating unit for separating tear strips (12) from the material strip (18), in particular adjacent to one Knife roller (36). Device according to claim 6 or one of the further claims, characterized in that blanks (11) with tear strips (12) can be produced in a two-web mode of operation, two film webs (13) running in parallel being separated from a double web (39) and a double strip (41) two separate strips of material (18) running in parallel can be produced and both film webs (13) and strips of material (18) can be controlled by separate conveying elements by means of common sensors - print mark readers (26, 30). Apparatus according to claim 6 or one of the further claims, characterized in that, for the double-lane mode of operation, two separate material strips (18) can be removed from a common strip bobbin (45) directly next to one another or from two separate individual bobbins (46, 47) arranged next to one another at a distance from one another and can be fed to the two film webs (13), the material strips (18) being transferred to the film webs (13) at a precise distance from one another by guide members. Apparatus according to claim 13, characterized in that when two separate material strips (18) are pulled off a common strip bobbin (19), deflection members are provided for the transverse deflection of the material strips (18) fed closely next to one another at a distance corresponding to the film webs (13), preferably guide rollers (59, 60, 62). Device according to claim 13 or one of the further claims, characterized in that, in the case of two-lane operation, two bobbins, namely individual bobbins (46, 47) for one material strip (18) each, are arranged on a common carrier, in particular on a common, continuous bobbin case (63 ), on a common support pin (65), in such a way that the individual bobbins (46, 47) always perform matching rotary movements when the material strips (18) are pulled off. Bobbin for material strips (18) for producing tear strips (12) to be attached to a blank (11), the material strip (18) pulled off the bobbin being applied to a film web (13) and from this the blanks (11) with tear strips (12 ) can be separated, characterized in that for feeding two strips of material (18) (each) to a film web (13) the two strips of material (18) are wound on a common carrier, in particular on a common bobbin case or on a common bobbin core ( 63). Bobbin according to Claim 16, characterized in that two individual bobbins (46, 47) are wound on the common bobbin core (63) at a small distance from one another, preferably with a matching winding structure. Bobbin according to claim 16, characterized in that two directly adjacent, parallel strips of material (18) are wound on a single, common strip bobbin (45) and can be pulled off together as a unit.

Images