EP3027516A1

EP3027516A1 - Methods and device for producing blanks for collars of packages for cigarettes

Info

Publication number: EP3027516A1
Application number: EP14734741.3A
Authority: EP
Inventors: Holger Broek
Original assignee: Focke and Co GmbH and Co KG
Current assignee: Focke and Co GmbH and Co KG
Priority date: 2013-07-29
Filing date: 2014-06-24
Publication date: 2016-06-08
Anticipated expiration: 2034-06-24
Also published as: WO2015014426A1; CN105517905B; DE102013012437A1; CN105517905A; EP3027516B1

Abstract

The invention relates to methods for producing blanks, in particular collars, from packaging material, preferably for packages of cigarettes. In said methods, a material web (25) is fed to at least one embossing roller (27a), which provides the material web (25) with embossings (20'-20''', 23) during at least one partial rotation phase and which introduces no embossings (20'-20''', 23) into the material web (25) during at least one other partial rotation phase. A subsequent severing-cut roller (38a) provides the material web (25) with severing cuts in order to form individual blanks (26). The invention is characterised in that the embossing roller (27a) transfers conveying forces to the material web (25) in the phases in which the embossing roller introduces the embossings (20'-20''', 23) into the material web (25), and in that the relative position between the embossing roller (27a) and the material web (25) is changed by varying the rotational speed of the embossing roller (27a) if necessary in order to compensate incorrect positioning of the embossings (20'-20''', 23), and/or in that the relative position between the severing-cut roller (38a) and the material web (25) is changed by varying the rotational speed of the embossing roller (27a) if necessary in order to compensate severing cuts that are not positionally correct.

Description

Method and device for producing blanks for collars of packages for cigarettes

description

The invention relates to a method for the production of blanks, in particular collars, from packaging material, preferably for packs of cigarettes, wherein a material web is fed to at least one embossing roll, the material web based on a full revolution of the embossing roll by 360 ° during at least a partial rotation phase with embossing provides and during at least one other partial rotation phase does not introduce embossments in the material web, and wherein a subsequent separating cutting roller provides the material web to form individual blanks with separating cuts. In addition, the invention relates to a corresponding device for carrying out the method and an embossing roller, which can be used in such a device.

Such methods and devices are disclosed in DE 10 2005 056 627 A1 of the Applicant. It is shown to provide the peripheral surface of an embossing roll for embossing inner wrappers for cigarette packs with a franking. The embossing roller segmented in this way makes it possible to provide the corresponding blank with an unembossed area or not to have to emboss the entire blank. If misalignments between the material web to be embossed and the embossing roll are detected, the relative position between the embossing roll and the material web can also be adapted. An adaptation of the relative position between the material web and the embossing roll takes place in DE 10 2005 056 627 A1 in that in the phases in which the material web is not embossed by the embossing roll due to the aforesaid recess, that is, free on the embossing roll, the web speed changes becomes. For this purpose, the speed of a separate feed roller is changed. The use of such

CONFIRMATION COPY Preferred rollers, however, has disadvantages. Among other things, these feed rollers require a lot of space, so that separating cut roller, embossing roller and feed roller regularly do not fit within a common housing.

Proceeding from this, it is an object of the present invention to further develop the aforementioned method and the device mentioned. This particular with regard to a compact manufacturing process with as few organs.

This object is achieved by a method having the features of claim 1, a method having the features of claim 2, devices having the features of claims 9 and 10 and an embossing roller having the features of claim 15.

According to the invention, it is accordingly provided to drive the segmented embossing roll by means of a drive device, so that it can transmit conveying forces to the material web. The drive device may be a local servomotor associated exclusively with the at least one embossing roll. Theoretically, however, the drive device can also be a central drive device of the device for producing the blanks with which the embossing roller is connected in a gear. It is important that the embossing roller in other words takes over the function of a (driven) feed roller. According to the invention, the aforementioned conveying forces are regularly transmitted by the at least one or preferably several embossing segments (e) of the embossing roller. In order to allow simultaneous adjustment of the relative position between the embossing roll and the web at the same time, the rotational speed of the embossing roller, which is expediently coupled to the machine cycle of the production device in normal or standard operation, ie outside the adaptation phase, is transitional change or vary. Namely, in the at least one partial rotation phase or in the partial rotation phases in which the embossing roller does not transfer conveying forces. These are regularly the partial rotation phases in which the material web runs free on the embossing roll, in that is, the release segment of the material web is opposite, while the material web is guided along the release segment.

The speed of the embossing roller can be increased or decreased within these respective partial rotation phases, for example briefly over the previous, derived from the machine cycle standard rotational speed of the embossing roller and braked or accelerated to the standard speed again at the latest at the conclusion of this partial rotation phase. Namely at the latest until the time at which the next embossing segment engages in the course of the further rotation of the embossing roll with the material web and correspondingly transfers conveying forces again. In other words, the partial rotation phases in which the material web runs free on the embossing roller are utilized in order to bring about a change in the relative position between the embossing roller and the material web. This, of course, regularly only if such a change is necessary, so if necessary. Accordingly, if a malposition between the material web and the embossing roll has been detected by means of suitable measures known from the prior art, which would lead or lead to the embossings not being applied to the material web in the correct position. For the detection of misalignments, for example, the positions of markings, in particular printed marks, applied to the material web with respect to the material web longitudinal direction at constant intervals can be detected and compared with determined actual rotational positions of the embossing roll. Alternatively or additionally (in the context of the application, in particular the claims, the term "alternatively or additionally" also "and / or" in the sense of "and" or "or" used) may be provided according to the invention, by transitional adaptation of the rotational speed the embossing roll also, if necessary, to change the relative position between separating cutting roller on the one hand and material web on the other hand. This, however, by speed adjustments in partial rotation phases in which the embossing roller transmits conveying forces to the material web and the embossing roll as an advancing roller (co-) determines the speed at which the material web is guided along the separating cutting roller, so a corresponding Rotation speed adjustment of the embossing roller in these phases also leads to an adjustment of the web speed. If the web at the same time cut roller freely or substantially free running at the separation, can be influenced in this way, the relative position between the material web and separating cut roller in the desired manner.

The speed of the embossing roller - similar to the adjustment of the relative position between the embossing roll and material web - for example, briefly increased or decreased over the derived from the machine cycle standard rotational speed of the embossing roller and braked at the latest at the conclusion of this partial rotation phase back to the standard speed or be accelerated.

By the embossing roller is used in the aforementioned manner as a driven conveying member, according to the invention can basically be dispensed with a separate feed roller. For this purpose, however, it is expedient to ensure that in the partial rotation phases in which the material web runs free on the embossing roll, another driven conveying element takes over the material web conveying.

In an independent embodiment of the invention, this assumes the preferably driven in the machine cycle by means of a suitable Antriebsteinrichtung or in a derived speed rotating separating cutting roller, this is equipped with at least one suitable driving segment, regularly several Mitnehmersegmenten, with or with those in the mentioned partial rotation phases conveying forces are transmitted to the web. Regularly, the drive device is at the same time the central machine drive, with which the shaft of the separating cutting roller is connected by gearing. Alternatively, however, a servo motor assigned to the separating cutting roller can also be used as a separate or local drive.

In other words, the separating cutting roller on the one hand and the embossing roller on the other hand or their speeds and relative rotational positions in Standard operation, that is outside of any adjustment phases, in which the relative position of the material web is adjusted with respect to the embossing roller or the separating cutting roller, coordinated or synchronized so that at least either one roller or the other roller as an advancing roller, the material web (on-) promotes.

Further features of the present invention will become apparent from the appended claims, the following description of a preferred embodiment and from the accompanying drawings. It shows:

Fig. 1 shows a cigarette pack in an oblique view with imprints in the upper

Collar area,

Fig. 2 shows a partial section of a compared to the collar embossing

1 another collar embossing,

3 is a partial section of the collar embossing of FIG. 1,

Fig. 4 shows a partial section of a compared to the collar embossing

1 another collar embossing,

Fig. 5 is a side view of an apparatus for the production of

6 shows a plan view of a continuous material web and a single blank which is processed at the processing time of the device shown in FIG. 5, FIG.

Fig. 7 shows the device of Fig. 5 to a second, different

Processing time, also in side view,

FIG. 8 is a plan view of the continuous web of material being processed at the processing time of the apparatus shown in FIG. 7. FIG. 9 is a sectional view corresponding to the section line IX-IX in Fig. 5,

10 shows an alternative embodiment of the device in a representation corresponding to FIG. 9,

Fig. 1 1 is a section through Fig. 5 along the section line Xl-Xl, Fig. 12 shows the detail XII of Fig. 7 in an enlarged view.

The invention is described in more detail using the example of the production of a package 10 for cigarettes of the hinge-lid type. Of the entire manufacturing or packaging process for cigarette packs or cigarettes only the important part of the invention is shown. The non-described sub-processes of the production of cigarette packs can be implemented in conventional manner known to those skilled in the art.

The package 10 consists of the components box part 1 1, cover 12 and collar 13 ". The collar 13" (Figure 1) is, as usual with hinge-lid packs, arranged inside the shaft part 11 and stands out of the open top box part 1 out. The collar 13 "extends in the closed position of the cover 12. The collar 13" extends in the area of the box front wall 14 and the box side walls 15. No collar 13 "is arranged in the area of the box rear wall 16. The collar 13 is correspondingly formed by a collar front wall 17 and collar side walls 18, which extend along corresponding walls of the box part 11.

In a manner known per se, the box part 11 serves as a receiving space for a package contents, namely in the present case for a cigarette block. The cigarette block is a group of cigarettes wrapped in a common wrapper or innerliner 19. The pack 10 is a known per se octagonal packing. Of course, the package 10 may also have other layouts. A peculiarity of the pack 10 is that the collar 13 "has embossments.

1 and 3, this is on the one hand an embossing pattern 20 ", which preferably extends over the whole area, in particular almost over the full collar width, over a large part of the upper area of the collar 13" visible to the consumer above a closing edge 21 of the box part 1 1. Furthermore, a printed, decorative element 22 surrounding embossment 23 can be seen.

FIGS. 2 and 4 show alternative collars 13 '' and 13 ', respectively, with alternative embossing patterns 20' 'and 20' that differ from the respective other embossing patterns.

The decorative element 22 is a print which is applied together with a print mark 24 on the respective collar 13'-13 "'.

Preferably, the imprints, in this case the decorative element 22 and the print mark 24, are applied outside the packaging process, that is, printed on the material web 25 in a separate process, within which the material web 25 is produced. For example, a supplier of the cigarette (pack) manufacturer, who produces the material web 25, already apply the imprints 22, 24. Of course, the imprints 22, 24 can also take place during the ongoing packaging process, in which the cigarette packs 10 are produced while being filled with corresponding cigarettes.

The material web 25 is provided in the longitudinal direction at predetermined intervals with the imprints 22, 24, wherein the distance between two adjacent identical imprints, so for example two adjacent decorative Elements 22 and two adjacent print marks 24, the length of a single blank 26 corresponds.

All the collars 13 - 13 '"with the respective embossings 20' - 20 '" and 23 are produced in a common production process, by individual blanks 26 being cut out of one and the same continuous material web 25 after the embossing processes. The manufacturing process is part of the overall packaging process for packaging cigarettes. In the present case, it takes place in the area of a corresponding packaging machine. Usually, the part of the packaging machine in which the collar is made, referred to as collar apparatus.

In the context of the collar production process, the material web 25 is first provided with the embossments 20 - 20 '"or 23. Alternatively, at least one embossment 20' - 20 '" or 23 could also be introduced outside the actual packaging process, ie, for example, likewise in the context of Prefabrication of the material web 25.

The embossings 20'-20 "'and 23 are introduced by means of an embossing device 27, which comprises an embossing roller pair 28.

Downstream of the embossing roller pair 28, a cutting device 29 is arranged with a separating cut roller pair 37, with which separating cuts are introduced into the material web 25 to form individual blanks 26 or individual collars 13 - 13 '.

A pair of transporting wafers 30 is positioned downstream of the cutter 29 and continues to feed the web 25 provided with cuts.

Finally, an accelerator roller pair 31 pulls the individual blanks 26 or collars 13 '- 13 "' from the material web 25 provided with the separating cuts while accelerating them. The material web 25 or in the area of the accelerator roller pair 31 only individual blanks 26 are conveyed along a presently horizontal transport path 48 in each case between the successive pairs of rollers 28, 37, 30, 31.

In the further course, the collars 13 - 13 '"produced in this way are further processed in a manner known per se in the context of the superordinate packaging process in the packaging machine.

A special feature concerns the embossing device 27. It has an embossing roller 27a which acts on the collar front wall 17, in the present case an upper embossing roller 27a, and a counter roller 27b, which in the present case is lower and is operatively coupled to the embossing roller 27a. The counter roll 27b is disposed opposite to the embossing roll 27a on the opposite side of the collar, in the present case the collar rear wall. The embossing roll 27a has a plurality of presently three, circumferentially spaced apart or distributed embossed segments 32a-32c. The embossing segments 32a-32c are each offset by approximately 120 °.

The counter-roller 27b, which is connected to the embossing roller 27a by means of a gear, has corresponding counterpart segments 34a-34c which are distributed over the circumference of the counter-roller 27b and are spaced apart from each other. In each case a counter segment presses during the embossing by the respective segment 32a-32c of the embossing roller 27a from below against the material web 25. The two rollers 27a, 27b are controlled or coordinated so that the aforementioned segments 32a, 34a; 32b, 34b; 32c, 34c are in pairs at least partially engaged with each other, so that the guided between the two rollers 27a, 27b material web 25 is partially embossed by the respective segment pairs. The segments 32a-32c and 34a-34c are provided in the region of their respective peripheral surface with small elevations and depressions as embossing means, which lead to the corresponding embossments 20 -20 '"and 23, respectively. The embossing segment pair 32a; 34a has embossing means which bring in the embossing pattern 20 '", the embossing segment pair 32b; 34b has other embossing means which introduce the embossing pattern 20" and the embossing segment pair 32c; 34c on yet another embossing means for the embossing pattern 20 '. In addition, each of the embossing segment pair or of each embossing agent of the respective embossing segment pair still introduces the embossment 23.

As a result, a plurality of different embossings can successively be introduced one after the other into the same material web 25 with the embossing device 27 or the embossing rollers 27a, 27b segmented in this way, which ultimately enables the production of the three different collars 13'-13 "'.

In the circumferential direction between the individual embossed segments 32a-32c of the embossing roll 27a, there are respective free segments 33a-33c. In the present case, these are also each offset by 120 ° to each other. The clearance segments 33a-33c are recesses or clearances extending in particular over the full width of the peripheral surface in the peripheral surface of the embossing roller 27a.

The relative position of the printing 22, 24 on the one hand and the embossments 20 -20 '' and 23 on the other or the imprints 22, 24 and the embossing roller pair 28 via a print mark reader 35 and the pair of rollers 28 driving drive 36, in this case a servo motor, means under suitable control such that the embossments 20'-20 "'and 23 are respectively positioned at the correct position with respect to the print marks 24 and the printings 22, respectively. This will be explained later.

In the present case, the embossing roller pair 28 also serves as a conveying member or as an advancing roller pair which exerts conveying forces on the material web 25 as soon as one of the embossing segments 32a-32c of the embossing roller 27a engages with the respective embossing segment 34a-34c of the embossing roller 27b Material web 25 is located or brings the corresponding imprints. The embossing roller pair 27a, 27b thereby pushes the material web 25 downstream along the separating cut roller pair 37 of the cutting device 29 in the direction of the transport roller pair 30. It is thus possible to dispense with a separate conveying element or a separate feed roller.

The advance of the material web 25 naturally does not take place when the material web 25 passes through the embossing roller pair 28, while the release segments 32a-32c move along the material web 25 or when no imprints are applied.

In order to provide for this case for a further transport of the web 25, the cutting device 29 and the roller pair 37 of the same is formed in a special way. It comprises an upper knife roll 38a arranged on the collar front wall side 17 and a lower counter roll 38b arranged on the collar rear wall side. The knife roller 38a has distributed over its peripheral surface spaced apart cutting means 39, in the present case knife. The knives 39 each have identical contours 40. But that does not have to be this way. The contours of the individual blades 39 can rather differ from each other.

The knives 39 bring in the web 25 suitable separating cuts. The contour 40 of the respective knife 39 defines the course of the respective upper edge or the respective lower edge of the later collar 13'-13 "'. The separating cuts are introduced while the material web 25 is moved through between the two rollers 38a, 38b.

It is particularly important that each knife 39 of the separating cutting roll 38a is associated with a leading segment 41 leading in relation to the direction of rotation of the knife roll 38a. As shown in FIG. 12, in the present case, the cam segment 41 has a serrated surface arranged in a partial region of the circumferential surface of the knife roller 38a, which grips the material web 25, shortly before the respective knife 39 brings in the corresponding severing cut. The driver segment 41 leaves behind on the material web 25 each have a Greifflächenabdruck 43rd In normal operation or in standard operation of the collar apparatus or the manufacturing device for producing collars, the rotational movements of the embossing roller pair 28 and the separating cut roller pair 37 are coordinated so that the driver segment 41 of the knife roller 38a further advances or grips the material web 25 at the times the embossing roller pair 28 does not introduce any embossments into the material web 25 or transfers any conveying forces to the material web 25. As a result, a continuous propulsion of the material web 25 is ensured overall in the best case.

Should the control of the device determine that the relative position of the material web 25 has a misalignment with respect to the embossing roll 27a or the embossing roll pair 28, so that the positions of the embossments 20'-20 '"or 23 introduced relative to the embossing or embossing positions Printings 22 and 24 are or would be incorrect, the controller changes this relative position.

This is achieved by the speed of the embossing roller pair 28 in the partial rotation phases in which no conveying forces are applied to the material web 25, in which the material web 25 therefore passes freely between the embossing rollers 27a, 27b due to the release segments 33a-33c, respectively in the short term or transitional manner to adapt the relative position is changed, namely, precisely during these partial rotation phases.

For example, in one or more of these phases, embossing roller pair 28 may be temporarily accelerated to adjust the relative position. At the latest at the end of the partial rotation phase, the embossing roller pair is then braked back to the original speed value, namely the value that is set in the standard mode and which is derived regularly from the machine cycle or the machine speed. Alternatively, the embossing roller pair 28 can of course also initially be braked for a short time in these partial rotation phases and then accelerated back to the original value or the standard value. FIG. 7 shows that rotational position of the embossing roller pair 28 in which the correction of the relative position can take place. With respect to the material web 25, the correction in the unembossed region 42 (FIG. 8) can take place between two introduced embossing patterns, in FIG. 8, for example, the embossing patterns 20 "and 20 '".

During the correction of the relative position of the embossing roller pair 28 relative to the material web 25 by changing the rotational speed thereof, the material web 25 otherwise regularly runs at a still constant standard speed through the embossing rollers 27a, 27b, namely in the present case due to the conveying forces of the roller pair 37 of the cutting device used as advancing rollers 29, whose rotational speed is coupled to the machine cycle or derived from this.

If the controller recognizes on the basis of the position of the print marks 24 and the rotational position of the pair of rollers 37 that there is a misalignment, in particular of the knife roller 38a, relative to the material web 25, that is to say that the separating cuts would take place or be performed in the wrong positions, it ensures that these too incorrect relative position is adjusted or corrected.

This in partial rotation phases of the roller pair 37, in which the driver segments 41 of the knife roller 38a are not in engagement with the material web 25 and therefore exert no conveying forces on the material web 25, cf. FIG. 5. Based on the material web 25, this phase corresponds to the region or section 56, cf. 6, in these phases, in particular in the rotational phases in which the respective driver segment 41 has just disengaged from the material web 25, until the next severing cut of the next following knife 39, the (conveying) speed of the embossing roller pair 28 becomes transitional changed. Namely, based on the rotations of the embossing roller pair in the phases in which the embossing roller pair 28 is in the embossing and thus conveying forces transmitted engagement with the material web 25. The embossing roller pair 28 can then accelerate or decelerate the material web 25 in a suitable manner and In accordance with the relative position of the material web 25 relative to the pair of rollers 38 influence or adapt.

Incidentally, as shown in FIG. 9, the knife roller 37a also has a plurality of circumferentially revolving groove depressors 54 which are spaced parallel to each other in the axial direction and which are inserted into the material web 25 parallel to the web longitudinal edges and spaced apart from each other by the creasing lines 55 can be. Along these creasing lines 55, the collar 13'-13 "'can later be folded into the shape shown in FIG.

Another special feature relates to the accelerator roller pair 31. It has an upper, the collar front wall 17 facing the accelerator roller 50a and a present lower, the collar rear wall facing counter roller 50b. The accelerator roller 50a is segmented. Their peripheral surface has clearances 51 and 52. In this case, the clearing 52 serves to protect the embossments 20'-20 "'or 23 applied to the respective collars 13'-13"' or the individual blanks 26. The accelerator roller 50a is like this controlled that the franking 52 opposite to the embossments 20 -20 '"and 23 during transport of the finished collar 13'-13'", so that the accelerator roller 50a does not touch the collar 13'-13 '"in the embossed areas 51 serves to immerse the respective tip of the collars 13 - 13 "when they are respectively transferred to the area of the rollers 50a, 50b. To transmit conveying forces or to accelerate them, the collars 13'-13 "are then gripped by a driver segment 53 in unembossed regions of the blank.

FIG. 10 shows an alternative embodiment of the invention, in which the knife roller 38a-unlike the embodiment according to FIG. 9 -has no groove depressors 54. This has the advantage that the material web 25 in the event that in the manner described above, an adjustment of the relative position between the knife roller 37 a and web 25 should be necessary, completely free relative to the knife roller 37 a is movable and this movement is not by that of the Rilleneindrücker 54 applied pressure is hindered. In order to still be able to bring in score lines 55, in this case provided that the accelerator roller 50a along their peripheral surface corresponding Rilleneindrücker 54 'to produce the score lines 55.

In order to increase the bending stiffness of the material web 25 during the feed transport of the material web 25 through the embossing roller pair 28, a device 44 for bending or bending the material web 25 is disposed between the embossing roller pair 28 and the cutting device 29. In the present case, the material web 25 is arched symmetrically to the longitudinal central axis, in such a way that the free longitudinal edges thereof are bent downwards.

The device 44 comprises a first guide means 45, namely in the present case a mounted on horizontal support members 46 role. The (in this case horizontal) axis of rotation of the roller is arranged transversely to the longitudinal extent of the material web 25. The roller 45 is positioned centrally below the longitudinal central axis of the material web 25 and thereby aligned symmetrically to this. It supports the material web 25 from below or the material web 25 lies in a central region on the peripheral surface of the roller 45.

In the region of each of the free longitudinal edges of the material web 25, in each case slightly offset inwards or to the longitudinal central axis, a further guide means 47a, 47b are respectively arranged on the upper material web side, namely in each case a roller 47a or 47b. The rollers 47a, 47b are mounted such that their peripheral surfaces together with the circumferential surface of the roller 45 define a transport path 49 which is curved symmetrically relative to the longitudinal center axis of the material web for the material web 25. The rollers 47a, b press the material web 25 in the region of their longitudinal edges - as already indicated - from top to bottom.

***** LIST OF REFERENCE NUMBERS

10 pack 32b embossing segment

1 1 box part 32c embossing segment

12 lid 33a free segment

13 'collar 33b free segment

13 "collar 33c free segment

13 '"collar 34a counter segment

14 box front wall 34b counter segment

15 box side wall 34c counter segment

16 box back panel 35 print mark reader

17 collar front wall 36 drive

18 Collar sidewalls 37 Separate cutting rollers 9 Innerliner 38a Knife roller

0 'embossed pattern 38b counter roll

0 "embossing pattern 39 knives

0 "'Embossing pattern 40 Knife contour

1 closing edge 41 driving segment 2 decorative element 42 unembossed area 3 embossing 43 gripping surface impression 4 printing mark 44 device

5 web 45 roll

6 blanks 46 supporting part

7 embossing device 47a roll

7a embossing roll 47b roll

7b counter roller 48 transport path

8 embossing roller pair 49 conveyor

9 Cutting device 50a Accelerator roller0 Transport roller pair 50b Accelerator roller 1 Accelerator roller pair 51 Clearance

2a embossing segment 52 franking Trailing segment Groove indenter Grooving lines

Area

Claims

claims

1 . Method for producing blanks, in particular collars, from packaging material, preferably for packs of cigarettes, wherein a material web (25) is fed to at least one embossing roll (27a) which converts the material web (25) with respect to a full revolution of the embossing roll (27a) 360 ° during at least a partial rotation phase with embossments (20'-20 "\ 23) provides and at least during another partial rotation phase no embossments (20'-20" ', 23) in the web (25) brings, and wherein a subsequent separating cutting roller (38a) provides the material web (25) with cuts for the formation of individual blanks (26), characterized in that the embossing roll (27a) is driven by a drive device (36) and in particular in the phases in which the embossings (20 '-20' ', 23) in the material web (25), conveying conveying forces on the material web (25), and that the relative position between the embossing roll (27a) on the one hand and Mat on the other hand, to compensate for misalignments of the embossments (20'-20 "', 23) is changed as required by the rotational speed of the embossing roller (27a) is changed, in a partial rotation phase in which the embossing roller (27a) no Conveyor forces on the material web (25) transmits, and / or that the relative position between separating cutting roller (38 a) on the one hand and material web (25) on the other hand to compensate for non-positional separating cuts is required changed by the rotational speed of the embossing roll (27 a) is changed, namely in a partial rotation phase in which the embossing roll (27a) transfers conveying forces to the material web (25).

2. A process for the production of blanks, in particular according to claim 1, from packaging material, preferably for packs of cigarettes, wherein a material web (25) at least one embossing roller (27a) is supplied, which the material web (25) based on a full revolution of the embossing roll (27a) by 360 ° during at least a partial rotation phase with Imprints (20'-20 "', 23) and which during at least one other partial rotation phase does not introduce embossings (20'-20" \ 23) into the material web (25), and wherein a subsequent separating cut roll (38a) guides the material web (25 ) is provided with separating cuts for the formation of individual blanks (26), characterized in that the embossing roll (27a) is driven by a drive device (36) and in particular in the phases in which the embossings (20'-20 '', 23 ) inserts into the material web (25), transfers conveying forces to the material web (25), and in a partial rotation phase in which the embossing roll (27a) does not transfer conveying forces to the material web (25) by means of a suitable entrainment segment (41) in turn transfers conveying forces to the material web (25).

3. The method according to one or more of the further claims, characterized in that the change in the speed of the embossing roller (27a) in accordance with on the material web (25) applied markings (24).

4. The method according to one or more of the further claims, characterized in that the rotational speed of the embossing roller (27a) at the completion of the partial rotation phase in which the relative position between embossing roller or separating cutting roller (38a) and material web (25) is changed, has the same value at the beginning of this partial rotation phase, in particular a value coupled to the machine cycle.

5. The method according to one or more of the further claims, characterized in that the speed of the embossing roller (27a) and the speed of the separating cutting roller (38a) outside of the phases in which either the relative position between embossing roll (27a) and material web (25) or between separating cutting roller (38a) and material web (25) is changed, is coupled to the machine cycle.

6. The method according to one or more of the further claims, characterized in that the relative position between embossing roller (27a) or separating cutting roller (38a) on the one hand and material web (25) on the other hand dependent is changed from positions of on the web (25) applied markings (24).

7. The method according to one or more of the further claims, characterized in that the material web (25) on its way from the embossing roller (27a) to the separating cutting roller (38a) along its longitudinal central axis is curved in particular upwards and then curved to the separating cutting roller ( 38a) (is further promoted.

8. The method according to one or more of the further claims, characterized in that the individual blanks (26) downstream of the separating cutting roller (38 a) by an accelerator roller (50 a) are deducted from the material web (25) which is controlled such that at least one Entrainment segment (41) thereof during a partial rotation phase of the accelerator roller (50a) conveying forces on an unembossed portion of the blank (26), and that at least one free segment (51, 52) of the accelerator roller (50) directed to an embossed region of the blank (26) when the blank is guided along the accelerator roller (50a) during another partial rotation phase of the accelerator roller (50a), such that the release segment (51, 52) does not touch the embossed portion.

9. Apparatus for producing blanks, in particular collars, from packaging material, preferably for packs for cigarettes, in particular for carrying out the method according to one or more of the preceding claims, having at least one embossing roller (27a) with at least one embossing segment (32a-32c), with a material web (25) during a partial rotation phase of the embossing roller (27a) can be provided with embossments (20'-20 "', 23), as well as with at least one release segment (33a-33c), which during any part rotation phase no embossing ( 20'-20 "', 23), and with a separating cutting roller (38a) arranged downstream of the embossing roller with individual separating means (39), in particular separating knives, with which the material web (25) can be separated, in particular cyclically, into individual blanks (26), characterized in that the embossing roller (27a) is driven by a drive device (36) and in particular in the phases, in to which it introduces the embossings (20'-20 "', 23) into the material web (25), transfers conveying forces to the material web (25), and that the apparatus has a control device with which the relative position between embossing roll (27a) on the one hand and Material web (25) on the other hand to compensate for misalignments of the embossments (20'-20 "', 23) is variable by the rotational speed of the embossing roller (27a) is changed, in a partial rotation phase in which the embossing roller (27a) no Conveying forces on the material web (25) transmits, and / or with the relative position between separating cutting roller (38 a) on the one hand and material web (25) on the other hand to compensate for unreached separating cuts as needed is changed by the rotational speed of the embossing roll (27 a) is changed, and although in a partial rotation phase, in which the embossing roller transfers conveying forces to the material web (25).

10. Apparatus for producing blanks, in particular collars, from packaging material, preferably for packs for cigarettes, in particular for carrying out the method according to one or more of the preceding claims, having at least one embossing roll (27a) with at least one embossing segment (32a-32c), with a material web (25) during a partial rotation phase of the embossing roller (27a) can be provided with embossments (20'-20 "', 23), as well as with at least one release segment (33a-33c), which during any part rotation phase no embossing ( 2Q'-20 "23), and having a separating cutting roller (38a) arranged downstream of the embossing roll (27a) with individual separating means (39), in particular separating knives, with which the material web (25) can be separated, in particular cyclically, into individual blanks (26) , characterized in that the embossing roller (27a) is driven by a drive device (36) and in particular in the phases in which it the embossing n (20'-20 "', 23) into the material web (25), transferring conveying forces to the material web (25), and that the separating cut roll (38a) has at least one driver segment (41) with which the separating cut roll (38a ) during a partial rotation phase in which the embossing roller (27a) does not transmit conveying forces to the material web (25), conveying forces can be transmitted to the material web (25).

1 1. A device according to claim 9 or 10, characterized in that between the embossing roller (27a) and separating cutting roller (38a) means (44) for bending the material web (25) along its longitudinal central axis is arranged, in particular a device (44) with a plurality Guide means (45, 47a, 47b), in particular guide rollers, between which the material web (25) is transportable and which are arranged so that they define a curved transport path (48) along which the material web (25) is guided.

12. The device according to claim 1 1, characterized in that the means (44) for bending the material web (25) at least a first, in particular in the region of the material web longitudinal axis arranged guide means (45) which presses against the material web underside, as well as two in Area of the lateral longitudinal edges of the material web (25) arranged guide means (47 a, 47 b), each press against the material web top.

13. The device according to one or more of claims 9-12, characterized in that the separating cutting roller (38 a) in the circumferential direction spaced apart separating knife (39), wherein each cutting knife (39) based on the standard direction of rotation of the separating cutting roll this leading entrainment segment (41 ), which can each transmit the conveying forces to the material web (25).

14. The device according to one or more of claims 9-13, characterized in that downstream of the separating cutting roller (38 a) an accelerator roller (50 a) is arranged, with the individual blanks (26) from the material web (25) are removable, wherein the accelerator roller (50a) has at least one driver segment (53) with which conveyor forces can be transmitted to the blank (26) during a partial rotation phase of the accelerator roller (50a) and at least one free segment (51, 52) which projects onto an embossed region of the blank (26 ), when the blank (26) is guided along the accelerator roller (50a) during another partial rotation phase of the accelerator roller (50a) such that the releasing segment (51) does not contact the embossed area.

15. embossing roller with a plurality of circumferentially spaced apart embossing segments (32a-32c), wherein in the circumferential direction between two embossing segments (32a-32c) each have a release segment (33a-33c) is arranged, in particular one preferably over the full width of the embossing roller ( 27a) extending clearance or depression.

16. embossing roller according to claim 15, characterized in that all embossing segments (32a-32c) each have different embossing means for generating respectively different embossing pattern.

*****