DE102008020575A1 - Laser cigarette perforator, includes mirror drum reflecting groups of beams from single laser along paths terminating at foci on rolling cigarette - Google Patents

Abstract

Cigarette-like lengths or other cylindrical objects (16) are placed on the rotary drum (12) and rolled about their axes against the surface (18) in a fixed location, seen in the circumferential direction of the drum. The outer casing (14) of the lengths is subjected to laser radiation from a laser operated during rotation. A polygonal rotary mirror reflects the incident laser beam along various paths. The resultant beams are focused onto the object at different locations along its length. The locations correspond with sections into which the object will be cut. The lengths are subsequently separated into shorter pieces (e.g. cigarettes). An array of focusing lenses is used to deflect the beams and their focal points on the object. Preferably one part of each beam path includes a focusing lens. Beam paths may be associated with a common focusing lens. The mirror produces various groups of beam paths, each group being focused by a common lens. Further variants and enhancements are described, based on the foregoing principles. Provisions are made to interrupt and/or deflect the beams. The rolling speed of the object is synchronized electrically and/or mechanically with the rotary speed of the drum. The drum causes object rotation through at least 360[deg] and then carries it further. These actions are synchronized electronically or mechanically with the start and end of laser action on the object. Where the object is a cigarette, it is tipped, especially with a filter. The outer casing is formed by cigarette paper, adhesive and/or paper encasing the filter. Multiple cigarettes, especially double cigarettes, are subsequently separated into single cigarettes. The equipment is incorporated into a cigarette-maker. This in turn forms part of cigarette-making plant. The perforation unit is located between cigarette-making- and packing machinery.

Description

The The invention relates to a device for perforation of each comprising an outer covering rod-shaped Articles, especially cigarettes. It also relates to a plant for the manufacture and / or treatment of cigarettes with at least one such perforation device.

machine combinations for cigarette production, in particular filter cigarette production, hereinafter referred to as cigarette maker, usually include a distributor unit, a strand unit and a filter attachment. The distributor unit provides an uncovered tobacco rod of defined density and composition in a continuous process ago and this leads the Strangeinheit for serving with Paper too. There, the strand is then cut into so-called tobacco sticks. The filter applicator completes the tobacco sticks with filters and tipping paper.

For so-called light cigarettes, the tipping paper is usually perforated to an air admixture and, accordingly, a reduction of below other nicotine and tar concentration.

The Perforation can be performed on the tiling paper component, for example during an upstream, independent Refining process, or in the cigarette manufacturing process merging of the components, that is after application of the tipping paper. For the perforations of the component Tipping paper will have high accuracy and high hole density required. With appropriate perforations are mainly cigarettes with big Market volumes equipped.

For a perforation after merging Of the components it is common practice to use double cigarettes a rotating drum, also called roll drum to perforate, before they are separated by a central cut in single cigarettes become. Every single double cigarette will be on the reel drum Help a corresponding mechanism, such as a roll cam, while the perforation under the Perforationsköpfen stationary rotated by about 360 °, around the holes over the Scope to distribute. The perforation of double cigarettes offers the advantage of one compared to the perforation of single cigarettes larger time window at the same output of the cigarette maker. The perforating of single cigarettes is possible in principle by the same method, if appropriate also outside the filter attachment machine in a separate machine or device. However, the double is for the perforation of double cigarettes Number of perforation heads required.

So far have the perforations after merging the components lower Punching densities and larger hole diameters on, being common also a worse hole quality and accuracy. On the other hand, offers such a perforation after merging the components the possibility an adjustability of the perforation parameters directly on the Machine and thus allows rapid adaptation to the respective Production requirements and more flexible machine use. Such a perforation after merging of the components offers therefore especially for smaller production quantities.

Of the Invention is based on the object, an improved perforation and to provide an improved system of the type mentioned, where the aforementioned disadvantages are eliminated.

According to the invention this Task solved by a device for perforating each comprising an outer envelope rod-shaped articles, in particular cigarettes, with a drum rotating about its axis, on the outer circumference the rod-shaped Items are positionable, with a particular drum cooperating device for rolling the rod-shaped articles about its axis, the rod-shaped Article when rolling around its axis in the circumferential direction of the drum each considers at least substantially a fixed position occupy, as well as with a device for acting on the outer envelope of the rod-shaped Article with laser radiation with a while treating a respective rod-shaped article rolling about its axis powered laser and a polygonal rotating mirror, through which an incident Laser beam is reflected in different beam paths, whose So shining on the outer envelope of a respective rod-shaped Articles are focusable for the different beam paths longitudinal a respective rod-shaped Article considers different positions of the concerned Focus on the outer envelope revealed.

Due to this design, the laser light is split into a plurality of quasi-simultaneous processing points on the outer envelope of a respective rod-shaped article, at the same time from the continuous light of the laser short pulses of very high frequency are generated. The high pulse repetition rate results in correspondingly high processing speeds. Despite the use of less or only a single laser, an almost simultaneous application of the substrate in several target areas on the outer envelope is possible. As a result, the use of multiple lasers is no longer required, can accordingly Cost and space can be saved. In particular, beam splitting by so-called beam splitters is no longer necessary, which would be disadvantageous insofar as the resulting partial beams would have a correspondingly lower intensity, which is no longer sufficient for certain processing methods. Moreover, the partial beams would also have an alternating, that is, in any case, different intensity and / or spatial intensity distribution. For beam splitters, for example, the different influence on the beam profile is often the main problem, especially in the case of contamination (beam geometry). In contrast, a certain relatively high and constant intensity of the perforation causing laser light beam is ensured due to the formation of the invention.

A preferred practical embodiment the device according to the invention is characterized by the fact that the incident laser beam through the polygonal rotating mirror reflected in different beam paths is that chosen are that the beam of one or more beams of these beam paths each on a first section and the beam of one or the Beams of several of these beam paths each to another Section of a respective rod-shaped Multiple articles are focusable, which subsequently in the different sections corresponding shorter Article is separated.

Is more appropriate the incident laser beam through the polygonal rotating mirror in a or multiple groups of different beam paths each reflectable, in the case of only a single beam path group, these for Treatment of simple rod-shaped articles maintaining their original length is provided and in the case of multiple beam path groups for rod-shaped multiple articles are provided, which subsequently each separated into a corresponding number of shorter articles become.

According to one advantageous practical embodiment the device according to the invention is the incident laser beam through the polygon rotating mirror over at least an arrangement of longitudinally a respective rod-shaped Article views adjacent focusing lenses pivotable, the distance corresponding to their respective focal length from the respective one to be treated rod-shaped Articles are arranged.

there For example, the device may be designed so that at least one Part of the beam paths and preferably each beam path one each own focusing lens is assigned. In the simplest embodiment can Consequently, for example, only two beam paths can be provided, each with its own focusing lens is assigned.

advantageously, However, at least two beam paths can also have a common focusing lens be assigned over the beams in question at the positions concerned the outer covering of a respective rod-shaped Article are focusable. This allows multiple editing tracks with only one focusing optics quasi-simultaneous and essentially without geometric offset in the rolling direction of the rod-shaped article be generated.

From The advantage here is in particular when the incident laser beam through the polygonal rotating mirror into one or more groups of different ones Beam paths is reflected and for at least one beam path group one for whose beam paths common focusing lens is provided.

Prefers is between the polygonal rotating mirror and the array of adjacent ones Focusing lenses or the at least two beam paths associated common focusing lens at least one arrangement of adjacent Collimator lenses provided in one of their focal length corresponding Distance from the polygon rotating mirror are arranged.

A further preferred embodiment characterized in that the polygonal rotating mirror in at least two a different number of faceted areas divided and so adjustable is that different areas in the beam path the incident laser beam can be introduced and correspondingly different sweep or fan angle of the reflected by the polygon rotating mirror laser beam are adjustable. Because of this training, it is minimal effort, for example possible, very fast and handy during the production between two or more different with respect to their facet number Switch polygon mirror areas. Here, the polygon rotating mirror in particular by means of a motor or manually operable Positioning be adjustable.

The incident laser beam is expediently focused on the polygonal rotating mirror by means of an entrance lens arrangement comprising a plurality of lenses arranged one behind the other. In this case, advantageously at least two each one or more consecutively arranged lenses comprehensive entrance lens assemblies of different focal length pre-adjusted lens mounts are assigned, in which they by means of respective movement units defined by the respective pre-adjusted lens mounts different distances to the Kolli Matorlinsenanordnung be introduced or removed from the beam path in order to change the size of the focal spot area of the adjacent focusing lenses or the at least two beam paths associated common focusing lens accordingly. In this case, at least one entrance lens arrangement can also be formed, for example, by a zoom lens with a continuously adjustable focal length.

at such an embodiment is a reliable and relatively simple way rapid change between different hole diameter ranges possible. A corresponding "switching" between the different hole diameter ranges is practically during the Production possible. It is both a switching of individual lenses and a Switching lens combinations with the purpose of change the total focal length conceivable. It is also the use in particular at least one zoom lens possible, that is in particular a manual or motorized adjustable lens combination, for example to change the total focal length of the lens system. The respective switching can, for example, over an electronic control device provided with the corresponding software respectively. The relevant control device can be programmable be. The trajectories may be, for example, manual, motor or pneumatic units act.

According to one further advantageous embodiment the device according to the invention is in at least one of the between the polygonal rotating mirror and the juxtaposed Focusing lenses or the at least two beam paths associated common focusing lens formed beam path sections an opto-mechanical Switch and / or variator provided by the concerned Beam path section unbreakable or the position of the relevant Focus on the outer cladding variable is. This not only makes it possible for the respective perforation zones at any point as long as desired to interrupt. It is also an even distribution of perforations possible. The Perforation patterns can with a larger hole spacing be generated so far, without the roll speed the rod-shaped Articles and the energy per hole must be changed significantly. While the Perforation traces so far in principle in rows with relatively low Hole spacing were arranged, now arbitrarily larger distances are possible, with the hole spacing can be increased in particular variable. alternative or additionally it is possible, a particular arbitrarily adjustable disorder of the perforation pattern, this means especially to create a kind of "chaos perforation" at the place of a respective straight perforation track gives a particular freely programmable "shaky" or "prancing" single track. Basically for example, in each of the between the polygonal rotating mirror and the juxtaposed Focusing lenses or the at least two beam paths associated common focusing lens formed beam path sections, respectively an opto-mechanical switch or variator may be provided. In In this case, each of these beam path sections is in each case desired Way influenced.

Prefers In particular, electronic and / or mechanical means are provided, about the rolling speed of a respective rod-shaped article to synchronize with the rotational speed of the polygon rotating mirror. there the hole spacing can be determined by the rotational speed of the polygon turning mirror be determined.

The Drum and / or the rolling device are expediently designed and / or controllable, that a respective rod-shaped article in the solid Position by a predetermined angle, preferably at least in Essentially around 360 ° to rotated its axis and then through the rotating drum is transported further.

The Rolling device, for example, one cooperating with the drum Roll cams or the like include.

advantageously, are also in particular electronic and / or mechanical means provided to the start and / or stop time of the laser application with the phase while the one respective rod-shaped Article is rolled, and / or the phase of onward transport through to synchronize the rotating drum.

In order to For example, the fact that after a particular roll of a cigarette through this for a short time the rotating drum transported mechanically and out of the Processing area of the laser radiation is moved out and the next cigarette approach promoted and must be rolled, including the otherwise continuously operated laser must be interrupted briefly.

With The device according to the invention for perforation is particularly advantageous of cigarettes with mouthpiece, in particular filter cigarettes, executed, wherein the outer casing to be perforated respectively in particular tipping paper, glue, filter wrapping paper and / or the like includes and the mouthpiece surrounds a respective cigarette. The surrounding the Filterazetat wrapping can therefore except tipping paper additionally in particular wrapping paper and glue layers included.

Prefers is the device according to the invention for the treatment of simple cigarettes maintaining their original length and / or for the treatment of multiple cigarettes, especially double cigarettes, provided, which are each separated in single cigarettes.

there can the incident laser beam through the polygonal rotating mirror in be reflective of different beam paths chosen that the beam of one or more beams of these beam paths each on a first section and the beam of one or the Beams of several of these beam paths each to another Section of a respective multiple cigarette, in particular double cigarette, are focusable.

there For example, such an embodiment is conceivable in which at least a part of the beam paths and preferably each beam path respectively a separate focusing lens is assigned.

is the device for example for the treatment of double cigarettes provided, for example, such embodiments are conceivable, where on the two sections of a respective double cigarette one beam path in each case, two beam paths each, three beam paths each or in each case four beam paths can be focused. It can by each generates a perforation track a respective beam path become.

The In particular, the device can also be designed so that the incident Laser beam through the polygonal rotating mirror in one or more groups Of each different beam paths is reflected, wherein in the case of only a single beam path group for treatment from simple to original Length maintaining Cigarettes, especially double cigarettes, is provided and in If several beam path groups this provided for multiple cigarettes which are each in a corresponding number of single cigarettes be separated.

there For example, such an embodiment of the device is conceivable when the incident laser beam through the polygonal rotating mirror reflected in two groups of different beam paths is provided and the two beam path groups for double cigarettes are each separated into two individual cigarettes.

Of the incident laser beam can be through the polygonal rotating mirror, for example reflected in at least one group of four beam paths be. For example, such an embodiment is also conceivable when the incident laser beam through the polygonal rotating mirror in at least one group of eight beam paths is reflected.

The inventive plant for the manufacture and / or treatment of cigarettes is distinguished in that it comprises at least one perforation device according to the invention includes.

advantageously, includes the system according to the invention a cigarette maker, in particular a cigarette maker for the production of double cigarettes, in which the double cigarettes in single cigarettes be separated.

The Perforating device can be integrated in the cigarette maker or also as an independent machine be provided.

A preferred practical embodiment the plant of the invention is characterized by the fact that the cigarette maker for the production executed by double cigarettes is that are separated in single cigarettes, that the perforation device is integrated into the cigarette maker and that the perforation of the the mouthpieces surrounding, in particular tipping paper, glue, filter wrapping paper and / or the like comprehensive wrapping takes place before the double cigarettes be separated in single cigarettes.

According to one alternative expedient embodiment the perforation of the surrounding mouthpiece, in particular tipping paper, glue, filter wrapping paper and / or the like comprehensive serving only after the distribution of double cigarettes in single cigarettes. there The perforator can be integrated in the cigarette maker or be downstream of the cigarette maker or filter piecing.

there For example, the perforator can be placed between the cigarette maker and a packing machine. Here, the perforation device In particular, be operated online, ie in the flow of finished cigarettes arranged between the cigarette maker and the packaging machine be. Basically However, they also used as a machine unit operated offline become.

From Advantage is particularly also when the perforation device in the feed area a packing machine is provided.

The Invention will be described below with reference to exemplary embodiments with reference closer to the drawing described; in this show:

1 a schematic partial view of the rotating drum associated with roller cams an example embodiment of the invention Perforationsvorrichtung to the invention and

2 a schematic partial view of an exemplary embodiment of the laser application device of the perforation device.

1 shows in a schematic partial view one around its axis 10 rotating drum 12 a device for perforating each of an outer enclosure 14 (see also 2 ) comprehensive rod-shaped articles 16 which may be, in particular, cigarettes.

The rod-shaped article 16 are on the outer circumference of the drum 12 positionable. The drum 12 is a cooperative institution 18 for rolling the rod-shaped article 16 associated with their axis, which may include, for example, a rolling cam or the like.

The rod-shaped article 16 take when rolling around the axis in the circumferential direction of the drum 12 each considers at least substantially a fixed position. This is the rod-shaped article in question 16 on the outer peripheral surface of the rolling drum 12 unrolled until it is from one of the outer peripheral surface of the drum 12 provided driver 20 through the rotating drum 12 is transported further.

The perforation device also comprises a device 22 for loading the outer casing 14 the rod-shaped article 16 with laser radiation 24 (see also 2 ).

The laser application device 22 comprises a rod-shaped article rolling on its axis during the treatment of a respective one 16 continuously operated laser 26 and a polygonal rotating mirror through which an incident laser beam 30 in different beam paths 32 is reflective, whose rays are so on the outer envelope 14 a respective rod-shaped article 16 Focusable are that for the different beam paths 32 in the longitudinal direction of a respective rod-shaped article 16 considered to give different positions of the foci concerned on the outer cladding.

The incident laser beam 30 can through the polygonal rotating mirror 28 in different beam paths 32 be reflective, which are chosen so that the beam of one or more rays of these beam paths 32 each on a first section and the beam of one or more of these beam paths 32 each on a further section of a respective rod-shaped multiple article 16 can be focused, which is then separated in the various sections corresponding shorter article. The rod-shaped multiple articles may in particular be double cigarettes.

The incident laser beam 30 can through the polygonal rotating mirror 28 but also in one or more groups of different ray paths 32 be reflective, in the case of only a single beam path group this is for the treatment of simple, their original length maintaining rod-shaped articles provided and in the case of multiple beam path groups for rod-shaped multiple articles, especially double cigarettes, are provided, then each in a corresponding number of shorter articles or single cigarettes are separated. In the present case, the incident laser beam 30 through the polygonal rotating mirror 28 in two groups 34 . 36 be reflected.

The incident laser beam 30 can through the polygonal rotating mirror 28 about at least one longitudinal direction of a rod-shaped article 16 considered to be pivotable adjacent focusing lenses, which in a focal distance corresponding to the respective to be treated rod-shaped article 16 are arranged.

there For example, such an embodiment is conceivable in which at least a part of the beam paths and preferably each beam path respectively a separate focusing lens is assigned.

However, it is also possible, in particular, to assign at least two beam paths to a common focusing lens, via which the respective beams at the relevant positions on the outer envelope 14 a respective rod-shaped article 16 be focusable. At present, in the 2 illustrated embodiment is the beam paths 32 the two beam path groups 34 . 36 in each case a common focusing lens 38 respectively. 40 assigned over which the respective rays at the respective positions on the outer envelope 14 of the respective rod-shaped article 16 be focused.

Between the polygonal rotating mirror 28 and the arrangement of juxtaposed focusing lenses or of the at least two beam paths associated with each common focusing lens 38 respectively. 40 At least one arrangement of juxtaposed collimator lenses may be provided which, in a focal distance corresponding to their distance from the polygonal rotating mirror 28 are arranged.

The polygonal rotating mirror 28 has a certain number of facets 42 on. It can also be a polygonal rotating mirror, for example 28 turned be set in at least two different numbers of facets 42 subdivided areas and is adjustable so that different areas in the beam path of the incident laser beam 30 einbringbar and correspondingly different sweep or fan angle of the polygon rotating mirror 28 reflected laser beam are adjustable.

The incident laser beam 30 can by an entrance lens arrangement of one or more successively arranged lenses on the rotating polygon mirror 28 be focused. In this case, for example, at least two lens assemblies each having one or more lenses arranged one behind the other can be associated with different focal lengths, in which the different distances to the collimator lens arrangement defined by the respective displacement units can be introduced into or removed from the beam path by the respective pre-adjusted lens holders, by the size of the focal spot area of the adjacent focusing lenses or the common focusing lens associated with at least two beam paths 38 respectively. 40 change accordingly.

In at least one of the between the polygonal rotating mirror 28 and the adjacent focusing lenses or the at least two beam paths 32 associated common focusing lens 38 respectively. 40 formed beam path sections can be provided an opto-mechanical switch and / or variator, by which the respective beam path section interruptible or the position of the relevant focus on the outer envelope 14 is variable. The rolling speed of a respective rod-shaped article 16 can by appropriate in particular electronic and / or mechanical means with the speed of the rotating polygon mirror 28 be synchronized.

The drum 12 and / or the associated rolling device 18 can be executed and / or controlled by appropriate means so that a respective rod-shaped article 16 in the fixed position by a predeterminable angle, preferably at least substantially 360 °, about its axis and then rotated by the rotating drum 12 is transported further.

In addition, electronic and / or mechanical means may be provided for determining the start and / or stop time of the laser application of the phase during which a respective rod-shaped article 16 is rolled, and / or the phase of further transport by the rotating drum 12 to synchronize.

The laser 26 is particularly controllable so that it during the further transport of a respective rod-shaped article 16 is disabled after the respective rolling process.

The perforation device can be designed in particular for perforating cigarettes with a mouthpiece, in particular filter cigarettes, wherein in each case one, in particular tipping paper, glue, filter wrapping paper and / or the like, comprising an outer covering 14 perforated, which surrounds the mouthpiece of a respective cigarette.

In the present embodiment, the incident laser beam 30 through the polygonal rotating mirror 28 in two groups 34 . 36 each of four beam paths 32 be reflected.

The Perforation device can in particular be part of a system for Manufacture and / or treatment of cigarettes. It can this plant a cigarette maker, especially a cigarette maker for the production of double cigarettes, in which the double cigarettes be separated in single cigarettes.

The Perforating device can be integrated in the cigarette maker or also as an independent machine be provided.

It For example, such a plant for the production / or treatment be provided by cigarettes, the cigarette maker to Manufacture of double cigarettes is carried out in single cigarettes be separated, the perforation device in the cigarette maker integrated and the perforation surrounding the mouthpieces, in particular tipping paper, glue or glue layers, filter wrapping paper and / or the like comprehensive wrapping takes place before the double cigarettes be separated in single cigarettes.

It However, it is also conceivable that the perforation of a respective mouthpiece surrounding cladding only after the distribution of double cigarettes in single cigarettes he follows. In this case, the perforation device can be integrated again in the cigarette maker or be subordinate to this. In the latter case, the perforation device especially between the cigarette maker and a packing machine be arranged. The perforation device can, for example also in the feeding area of a Packing machine be provided.

As based on the 1 It can be seen in the individual beam paths 32 deflecting 44 arranged by the polygonal rotating mirror 28 coming rays, for example, at least substantially horizontally deflected. In addition, above the stabför to be acted upon article 16 for each beam path group 34 . 36 in each case a further deflection mirror 46 respectively. 48 intended.

10

axis

12

drum

14

outer cladding

16

rod-shaped article

18

rolling device

20

takeaway

22

Laserbeaufschlagungseinrichtung

24

laser radiation

26

laser

28

Rotating polygonal mirror

30

incident laser beam

32

beam path

34

Beam path group

36

Beam path group

38

focusing lens

40

focusing lens

42

facet

44

deflecting

46

deflecting

48

deflecting

Claims (34)

Device for perforating each outer casing ( 14 ) comprising rod-shaped articles ( 16 ), in particular cigarettes, with one around its axis ( 10 ) rotating drum ( 12 ), on whose outer circumference the rod-shaped articles ( 16 ) are positionable, with a particular with the drum ( 12 ) co-operating entity ( 18 ) for rolling the rod-shaped articles ( 16 ) about its axis, the rod-shaped articles ( 16 ) when rolling about its axis in the circumferential direction of the drum ( 12 considered at least essentially a fixed position, as well as with a device ( 22 ) for acting on the outer envelope ( 14 ) of the rod-shaped articles ( 16 ) with laser radiation having a rod-shaped article rolling on its axis during the treatment of a respective 16 ) continuously operated laser ( 26 ) and a polygonal rotating mirror ( 28 ) through which an incident laser beam ( 30 ) into different beam paths ( 32 ) is reflectable, whose rays so on the outer envelope ( 14 ) of a respective rod-shaped article ( 16 ) are focusable, that for the different beam paths ( 32 ) in the longitudinal direction of a respective rod-shaped article ( 16 ) considers different positions of the respective foci on the outer envelope ( 14 ). Apparatus according to claim 1, characterized in that the incident laser beam ( 30 ) by the polygonal rotating mirror ( 28 ) into different beam paths ( 32 ), which are selected so that the beam of one or more of these beam paths ( 32 ) to a first section and the beam of one or more of these beam paths ( 32 ) each on a further section of a respective rod-shaped multiple article ( 16 ) are focusable, which is separated only in the different sections corresponding shorter articles. Apparatus according to claim 1 or 2, characterized in that the incident laser beam ( 30 ) by the polygonal rotating mirror ( 28 ) into one or more groups ( 34 . 36 ) of different beam paths ( 32 ) is reflective, and in the case of only a single beam path group, these are used for the treatment of simple rod-shaped articles (FIG. 16 ) and in the case of multiple beam path groups ( 34 . 36 ) these for rod-shaped multiple articles ( 16 ) are provided, which are then each separated into a corresponding number of shorter articles. Device according to one of the preceding claims, characterized in that the incident laser beam ( 30 ) by the polygonal rotating mirror ( 28 ) via at least one arrangement in the longitudinal direction of a respective rod-shaped article ( 16 ) is juxtaposed focusing lenses pivotally, the corresponding in a focal length distance from the respective rod-shaped article to be treated ( 16 ) are arranged. Device according to claim 4, characterized in that that at least a part of the beam paths and preferably each Beam path is assigned in each case a separate focusing lens. Device according to one of the preceding claims, characterized in that at least two beam paths a common focusing lens ( 38 . 40 ), by which the beams concerned at the positions concerned are placed on the outer envelope ( 14 ) of a respective rod-shaped article ( 16 ) are focusable. Apparatus according to claim 6, characterized in that the incident laser beam ( 30 ) by the polygonal rotating mirror ( 28 ) into one or more groups ( 34 . 36 ) of different beam paths ( 32 ) is reflective and that for at least one beam path group ( 34 . 36 ) one for their beam paths ( 32 ) common focusing lens ( 38 ) is provided. Device according to one of the preceding claims, characterized in that between the polygonal rotating mirror ( 28 ) and the arrangement of juxtaposed focusing lenses or the at least two beam paths associated ge common focusing lens ( 38 . 40 ) at least one arrangement of juxtaposed Kollimatorlinsen is provided, which in a focal length corresponding to their distance from the polygon rotating mirror ( 28 ) are arranged. Device according to one of the preceding claims, characterized in that the polygonal rotating mirror ( 28 ) in at least two different numbers of facets ( 42 ) and is adjustable so that different areas in the beam path of the incident laser beam ( 30 ) and correspondingly different sweep or fan angle of the polygon rotating mirror ( 28 ) reflected laser beam are adjustable. Device according to one of the preceding claims, characterized in that the incident laser beam ( 30 ) by an entrance lens arrangement of one or more successively arranged lenses on the rotating polygonal mirror ( 28 ) is focused. Apparatus according to claim 10, characterized in that at least two each one or more consecutively arranged lenses comprising entrance lens assemblies of different focal length pre-adjusted lens mounts are assigned, in which they by means of respective movement units in the defined by the respective pre-adjusted lens mounts different distances to the Kollimatorlinsenanordnung in the beam path can be introduced or are removable therefrom so as to reduce the size of the focal spot area of the adjacent focusing lenses or of the at least two beam paths ( 32 ) common focusing lens ( 38 . 40 ) to change accordingly. Device according to one of the preceding claims, characterized in that in at least one of the between the polygonal rotating mirror ( 28 ) and the adjacent focusing lenses or the at least two beam paths ( 32 ) common focusing lens ( 38 . 40 ), an opto-mechanical switch and / or variator is provided, through which the relevant beam path section can be interrupted or the position of the respective focus on the outer envelope ( 14 ) is variable. Device according to one of the preceding claims, characterized in that in particular electronic and / or mechanical means are provided for controlling the rolling speed of a respective rod-shaped article ( 16 ) with the rotational speed of the polygon rotating mirror ( 28 ) to synchronize. Device according to one of the preceding claims, characterized in that the drum ( 12 ) and / or the rolling device ( 18 ) are executed and / or controlled by corresponding means so that a respective rod-shaped article ( 16 ) in the fixed position by a predetermined angle, preferably at least substantially 360 °, about its axis and then rotated by the rotating drum ( 12 ) is transported. Device according to one of the preceding claims, characterized in that in particular electronic and / or mechanical means are provided to the start and / or stop time of the laser application to the phase during which a respective rod-shaped article ( 16 ) is rolled, and / or the phase of further transport by the rotating drum ( 12 ) to synchronize. Device according to one of the preceding claims, characterized in that the laser ( 26 ) is controllable so that it during the further transport of a respective rod-shaped article ( 16 ) is deactivated after the respective rolling process. Device according to one of the preceding claims, characterized in that it is designed for the perforation of cigarettes with mouthpiece, in particular filter cigarettes, wherein the outer casing to be perforated ( 14 ) in each case in particular covering paper, glue, filter wrapping paper and / or the like and surrounds the mouthpiece of a respective cigarette. Device according to claim 17, characterized in that that they are for the treatment of simple, their original Length maintaining Cigarettes and / or for the treatment of multiple cigarettes, in particular Double cigarettes, provided, each in single cigarettes be separated. Apparatus according to claim 18, characterized in that the incident laser beam ( 30 ) by the polygonal rotating mirror ( 28 ) into different beam paths ( 32 ), which are selected so that the beam of one or more of these beam paths ( 32 ) to a first section and the beam of one or more of these beam paths ( 32 ) can each be focused on a further section of a respective multiple cigarette, in particular double cigarette. Device according to claim 19, characterized in that that at least a part of the beam paths and preferably each Beam path is assigned in each case a separate focusing lens. Device according to one of claims 17 to 19, characterized in that the incident Laser beam ( 30 ) by the polygonal rotating mirror ( 28 ) into one or more groups ( 34 . 36 ) of different beam paths ( 32 ) is reflective, wherein in the case of only a single beam path group, this is provided for the treatment of simple, retaining their original length cigarettes and in the case of multiple beam path groups ( 34 . 36 ) These are provided for multiple cigarettes, in particular double cigarettes, which are each separated into a corresponding number of individual cigarettes. Apparatus according to claim 21, characterized in that the incident laser beam ( 30 ) by the polygonal rotating mirror ( 28 ) into two groups ( 34 . 36 ) of different beam paths ( 32 ) is reflective and that the two beam path groups ( 34 . 36 ) are provided for double cigarettes, which are each separated into two individual cigarettes. Device according to one of the preceding claims, characterized in that the incident laser beam ( 30 ) by the polygonal rotating mirror ( 28 ) into at least one group ( 34 . 36 ) of four beam paths ( 32 ) is reflectable. Device according to one of the preceding claims, characterized in that the incident laser beam ( 30 ) by the polygonal rotating mirror ( 28 ) is reflectable in at least one group of eight beam paths each. Plant for the production and / or treatment of cigarettes with at least one perforation device according to one of the preceding Claims. Plant according to claim 25, characterized that she has a cigarette maker, especially a cigarette maker for the production of double cigarettes, in which the double cigarettes in Single cigarettes are separated. Plant according to claim 26, characterized in that the perforation device is integrated in the cigarette maker is. Plant according to claim 25 or 26, characterized in that the perforation machine is provided as a separate machine. Installation according to one of claims 25 to 27, characterized in that the cigarette maker is designed for the production of double cigarettes, which are separated into individual cigarettes, that the perforation device is integrated in the cigarette maker and that the perforation of the mouthpieces surrounding, in particular tamping paper, glue, Filter wrapping paper and / or the like covering ( 14 ) takes place before the double cigarettes are separated into single cigarettes. Installation according to one of claims 25 to 28, characterized in that the perforation of a respective mouthpiece surrounding, in particular tipping paper, glue, filter wrapping paper and / or the like comprehensive enclosure ( 14 ) only after the distribution of double cigarettes in single cigarettes. Plant according to claim 30, characterized in that the perforation device is integrated in the cigarette maker is. Plant according to claim 30, characterized that the perforation downstream of the cigarette maker is. Plant according to claim 32, characterized in that that the perforation device between the cigarette maker and a packing machine is arranged. Plant according to one of the preceding claims, characterized in that the perforation device is in the feed area a packing machine is provided.