DE102012209544B4 - Perforation of filter cigarettes - Google Patents

Abstract

The invention relates to a method for producing filter cigarettes (100), the filter cigarettes (100) each being encased in a wrapping material (9, 103). The method is characterized in that a perforation device (16), in particular a laser (17) of the perforation device (16), is controlled by means of a control device (36) for the production of perforations in such a way that using the, preferably using exclusively the one perforation device (16) generates a first perforation pattern (4) with slot-shaped perforation holes (104) in the circumferential direction of the respective filter cigarettes (100), preferably circumferentially, and between the slot-shaped perforation holes (104) to be formed or formed in the circumferential direction of the respective filter cigarettes (100) 104) of the first perforation pattern (4) in a peripheral zone section of the wrapping material (9, 103) of the filter cigarettes (100), a second perforation pattern (5) with at least one or more perforation holes (105) is additionally generated, as a result of which filter cigarettes (100) with variably adjustable Ventila degree of production are or are produced by the first perforation pattern (4) and the second perforation pattern (5), the first perforation pattern and the second perforation pattern in particular being preferably on a movable section of the filter cigarettes (100) provided with wrapping material (9, 103) a movable section of the filter plug provided with a covering paper strip, are or are produced. The invention also relates to a device (2), in particular a filter attachment machine, for producing filter cigarettes (100), the filter cigarettes (100) each being encased in a wrapping material (9, 103), in particular for carrying out the method.

Description

The invention relates to a method for producing filter cigarettes, wherein the filter cigarettes are each enveloped by a wrapping material.

Moreover, the invention relates to a device, in particular Filteransetzmaschine, for the production of filter cigarettes, wherein the filter cigarettes are each covered by a wrapping material.

In the production of cigarettes, in particular filter cigarettes, secondary air ducts in the form of holes or perforation holes are introduced in the region of the filter, through which the smoke is supplied to secondary air when pulling on the cigarettes. It is aimed at supplying a relatively large secondary air flow, which should be in a predetermined, as constant as possible ratio to the cigarettes leaving the total flow. This ratio is referred to as the total degree of ventilation. It is already known to provide cigarettes with holes, d. H. to perforate them, z. B. by rolling along an occupied with needles rolling surface.

It is also known to perforate cigarettes by means of laser beams, wherein in each case a certain number of holes with a desired overall cross-section is applied.

In order to keep the cigarettes of a brand with regard to condensate, nicotine and carbon monoxide (CO) in the smoke on the one hand, and on the other hand with regard to the smoker's registered behavior during smoking (taste per train, train number and draw resistance) as constant as possible, the partial ventilation levels, which make up the total Ventilationsgrad composed, be as constant as possible. This total degree of ventilation is made up of the degree of filter ventilation and the level of tobacco smoke ventilation, which must be within specified tolerances.

When packaging cigarettes on a filter tipping machine, a perforation of holes is made in the produced filter cigarettes using a perforating device into the wrapping material or wrapping strips of the bar-shaped articles. In particular, a uniform perforation is thereby introduced into the wrapping strips, whereby the wrapping strips have a predetermined, desired air permeability during smoking, so that secondary air is sucked into the wrapping strips due to the perforation pattern introduced, with which the proportions of nicotine and condensate in the smoke are influenced. In particular, the perforation is introduced into the wrapping strips using laser beams as coherent radiation, resulting in a very accurate constant zone of desired air permeability in the wrapping of the smoking articles.

By forming perforations in the wrapping material of the rod-shaped articles, the wrapping is provided with a zone of predetermined air permeability to add a certain amount of fresh air to the smoke each time a cigarette is pulled. The wrapping material or wrapper strips of these articles are typically made of paper, whereby the wrapping material or wrapper strips are perforated at predetermined intervals to produce a desired air permeability. For filter cigarettes, it is common practice to make the perforations in the tipping paper leaflet at the mouthpiece side filter end.

The provision of articles of smoking with a zone of desired air permeability in the region of the mouthpiece end, a so-called ventilation zone, provides the articles with a predetermined (total) degree of ventilation to preset levels of nicotine and condensate in the smoke of a smoking article or filter cigarette with such zone to be able to comply with the desired air permeability.

In DE 27 54 104 A1 For example, an apparatus for producing a zone of desired air permeability in a wrapping material strip for rod-shaped articles of the tobacco-processing industry is described.

Furthermore, in DE 41 06 127 A1 discloses a method for perforating shell material of rod-shaped articles of the tobacco processing industry, wherein the shell material to be perforated is moved through a perforation zone and a corresponding pulsed energetic beam in the perforation zone is aligned with the shell material to form perforation holes on the shell material.

In addition, in EP 1 836 909 B1 discloses a perforating device of the tobacco processing industry for perforating a casing of a rod-shaped article, wherein the perforating device comprises means for generating at least two independent primary rays.

Furthermore, in WO 2011/116976 A1 discloses a smoking article with variable ventilation.

In US 4,687,009 A In addition, a filter cigarette is described wherein a multi-layer wrapping paper is wrapped around a filter plug and a tobacco stick. The multi-layer wrapping paper has an inner paper layer and an outer paper layer, both of which have paper layers openings.

Starting from this prior art, the object of the invention is to increase the productivity in the production of filter cigarettes, in particular with adjustable ventilation.

This object is achieved by a method for producing filter cigarettes, wherein the filter cigarettes are each enveloped by a wrapping material, wherein a perforation device, in particular a laser of the perforation device is controlled by means of a control device for the production of perforations such that using the, preferably using only the one perforation device, a circumferential first perforation pattern with slot-shaped perforation holes is produced in circumferential direction of the respective filter cigarettes and a second perforation pattern is provided between the slot-shaped perforation holes of the first perforation pattern to be formed in the circumferential direction of the respective filter cigarettes in a peripheral zone portion of the filter cigarette wrapping material with at least one or more perforation holes quasi in one or the same track additionally ore whereby filter cigarettes of variably adjustable degree of ventilation are produced by the first perforation patterns and the second perforation patterns, wherein the first perforation pattern and the second perforation pattern are provided on a wrapping material movable portion of the filter cigarettes, preferably on a movable tiled paper strip portion the filter plug, and wherein a third perforation pattern in a second track next to a first track with the first perforation pattern and the second circumferential perforation pattern on a wrapping material provided with a solid portion of the filter cigarette, preferably on a non-movable with a Tipping paper strip provided portion of the filter plug, or is generated.

The invention is based on the idea that, using, preferably exclusively, a perforation device and, preferably exclusively, a control device for the one perforation device, the wrapping material, for. B. cigarette paper or tipping paper, a filter cigarette using a laser with predetermined first and second perforation patterns is provided at perforation holes which z. B. be generated by a corresponding pulsed laser beam of the perforation. Here, the filter cigarettes have at their periphery a first perforation pattern with long or elongated slot-shaped or groove-shaped perforation holes or perforation slots, wherein between two long slot-shaped perforation holes, d. H. between two first perforation patterns, at least one short slot-shaped perforation hole or a plurality of short perforation holes is provided as a second perforation pattern.

In the context of the invention, it is provided that the perforation holes of the first perforation pattern differ from the perforation holes of the second perforation pattern in shape and / or size. Furthermore, it is preferably further provided in the context of the invention that the perforation holes of the different or the two perforation patterns are the same in each case, d. H. do not differ from each other.

In particular, in the production of filter cigarettes, in particular filter cigarettes with a variably adjustable degree of ventilation, it is provided that one or more perforation holes (as a second perforation pattern) are introduced between the gaps in the slot perforation (s) to be formed or formed (as the first perforation pattern) Ventilation of the filter cigarettes with variably adjustable degree of ventilation to increase to a certain operating point, at the same time in the production of the filter cigarettes with variably adjustable degree of ventilation, the rejection rate is reduced at the Filteransetzmaschine.

To form the first and second perforation patterns, the laser provided as a perforation device is operated in such a way that the laser is pulsed by means of a control device in order to generate both the first perforation pattern and the second perforation pattern.

Depending on Filterzigarettenart and depending on the requirements, it is provided in the invention that a plurality of circumferentially successively arranged perforation holes are formed as a second perforation, wherein the dimensions of the perforation holes of the second perforation pattern are smaller than the dimensions or the lengths of the perforation slots of the first perforation ,

For this purpose, it is provided that the first perforation pattern and the second perforation pattern between the first perforation patterns are or are produced on filter cigarettes with a variably adjustable degree of ventilation.

Moreover, in one embodiment of the method, it is provided that the first perforation patterns and the second perforation pattern are or are produced on a movable section of the wrapping material of the filter cigarettes. Here, in particular, the movable portion of the wrapping material of the filter cigarettes with variably adjustable degree of ventilation is connected to a rod-shaped portion of a filter and relative to the other (fixed) parts of the rod-shaped filter rotatable so that, depending on the position of the perforation slots relative to a passage region of a stationary filter section, the degree of ventilation of the filter cigarettes is adjustable.

Moreover, it is provided according to a preferred embodiment of the method that when forming a second Perforationsmusters the length of the peripheral zone portion for the second perforation pattern, in particular for perforation with multiple perforation holes, smaller than half the total circumferential length of the respective filter cigarettes, in particular less than a third of total circumferential length or smaller than a quarter of the entire circumferential length of the respective filter cigarettes, and that (exclusively) a second or the second perforation pattern with a plurality of perforation holes between the perforation slots of the first perforation pattern, which are also referred to as slot-shaped perforation holes, is produced on the filter cigarettes or is.

Furthermore, in a development, it is preferred that the first perforation patterns are produced with perforation slots regularly arranged in the circumferential direction of the filter cigarettes.

Further, preferably, the first perforation patterns and the second perforation pattern are formed on a tipping paper formed as a wrapping material for the filter of the filter cigarettes.

Preferably, the method is characterized in that the first perforation pattern are each formed with a perforation slot and the perforation slots are diametrically formed on the circumference of the filter cigarettes opposite one another or are generated. In particular, the filter cigarettes have two first perforation patterns, each with a perforation slot.

In a development of the method, the first perforation pattern and the second perforation pattern are preferably produced in or on the same conveying member, in particular the same conveying drum, in the wrapping material of the filter cigarettes. The filter cigarettes are promoted in their perforation, for example, on a filter attachment machine on conveyor drums transaxially, so that the filter cigarettes are promoted on a so-called laser drum transversely for the formation of the perforation and provided during their transport on the laser drum with the two Perforationsmustern.

According to the method, a third perforation pattern is generated by means of a separate laser perforation device. For this purpose it is provided that a third perforation pattern in a second track next to a first track with the first perforation pattern and the second perforation pattern on the periphery on a provided with wrapping material, fixed portion of the filter cigarettes, preferably on a non-movable provided with a tipping paper strip portion of the filter plug , is generated or is. The solid portion of the filter cigarettes preferably each consists of a tobacco rod and a first filter plug piece fixedly connected to the tobacco rod. Further, the entire filter plug on an end-side or mouthpiece-side second filter plug piece, which is movable relative to the fixed first filter plug piece, in particular about the respective center longitudinal axis of the filter cigarettes is rotatable.

The further track with the third perforation pattern next to the (first) track formed on the wrapping material with the first and second perforation pattern for the variably adjustable ventilation of the filter cigarettes ensures that the filter cigarettes have a predefinable maximum draw resistance and / or a predetermined minimum ventilation.

The method is further characterized in that prior to generating the perforation pattern upstream of the perforation device, the wrapping material, in particular the tipping paper strip of the filter cigarettes, is provided with an imprint by means of a printing device, wherein the imprint on the wrapping material is formed as a scale and / or as an arrow and / or wherein the first and second perforation patterns are produced precisely in position, in particular repeatable, relative to the imprint on the wrapping material of the filter cigarettes.

The first and second perforation patterns are printed on the with z. As a scale or the like provided filter cigarettes with respect to the imprint always printed at the same position on the wrapping material of the filter cigarettes. For example DE 10 2004 031 185 A1 a corresponding printing unit for the application of print marks and the like is known, so that using such a printing unit scales or symbols or arrows and the like are printed on the tipping paper strip or its tipping paper strip portions of the filter cigarettes.

In addition, the method is advantageously developed if, after the production of the first and the second perforation pattern downstream of the perforation device, the perforated filter cigarettes be tested, the filter cigarettes a visual inspection, z. B. by means of a camera, and / or a ventilation test and / or a Zugwiderstandsprüfung be subjected. The filter cigarettes are in their manufacture and in the formation of the perforation z. B. conveyed on a filter attachment machine on conveyor drums transversely, wherein in transverse axial conveying direction of the filter cigarettes after and downstream of the perforation, the testing of the filter cigarettes preferably takes place.

Moreover, in the production of perforated filter cigarettes with individually adjustable by the consumer and variably adjustable degree of ventilation, it is provided that the first and the second perforation pattern is generated in the wrapping material in a rotatable portion of a filter plug. By rotating the movable end-side and perforated patterned and enveloped filter plug piece or section, consumers are enabled to individually set a preferred level of ventilation.

Furthermore, the object is achieved by a device, in particular filter attachment machine, for producing filter cigarettes, wherein the filter cigarettes are each enveloped by a wrapping material, in particular for carrying out the method according to the invention described above, which is further developed by a perforation device and a control device for the perforation device are provided for the production of perforations, wherein the perforation device, in particular a laser of the perforation device is controllable by means of the control device for the production of perforations such that using, preferably using only one, perforating device in the circumferential direction of the respective filter cigarettes, preferably circumferential, first perforation pattern with slot-shaped perforation holes can be generated and auszub between the circumferentially of the respective filter cigarettes a second perforation pattern with at least one or more perforation holes is additionally producible, whereby filter cigarettes with variably adjustable degree of ventilation through the first perforation and the second perforation pattern can be produced, wherein the first perforation pattern and the second perforation pattern can be produced on a wrapping material provided with a movable portion of the filter cigarettes, preferably on a movable tamped strip portion of the filter plug, and wherein a separate perforation device is provided such that a third perforation pattern in a second track adjacent to a first track with the first perforation pattern and the second circumferential perforation pattern on a wrapping material n, fixed portion of the filter cigarettes, preferably on a non-movable coated paper strip portion of the filter plug, is generated or is.

For example, the method is carried out on a filter attachment machine as a device for producing filter cigarettes with variably adjustable degree of ventilation, which is designed to carry out the method described above.

In addition, the device is characterized in that a first perforation device for generating the first perforation pattern and a second perforation device for generating the second perforation pattern are provided, wherein the first perforation device and the second perforation device are respectively connected to the control device and / or wherein the first Perforation device is provided in or on a first conveying member, in particular conveying drum, and the second perforating device is provided in or on a second conveying member, in particular second conveying drum.

In addition, an embodiment of the device is characterized in that a printing device for applying an imprint, a scale and / or an arrow, on the wrapping material, in particular the tipping paper strip of the filter cigarettes, is provided, wherein the printing device upstream with respect to the conveying direction of the filter cigarettes or downstream of the perforation device for the wrapping material, wherein a pressure control device for the printing device is provided, such that the first and second perforation exact position, in particular repeat, relative to the imprint on the wrapping material of the filter cigarettes and / or depending on the position of the imprint on the Enveloping material can be generated or generated.

In an alternative embodiment it is provided that the printing device is arranged downstream of the perforation device (s), so that the imprints or markings such as scales or arrows are printed with exact position and register accuracy, for example by means of an inkjet printer or the like, on the wrapping material for the filter cigarettes. For register-accurate printing, a corresponding register control device or pressure control device is provided.

According to a preferred embodiment, it is provided in the apparatus that in the conveying direction of the filter cigarettes downstream of the at least one perforation means a testing device for perforated with a first and second perforation filter cigarettes, in particular for performing an optical examination, for. B. by means of a camera, and / or a ventilation test and / or a Zugwiderstandsprüfung z. B. by means of pneumatic-electronic test systems, is provided. This ensures that an opto-electronic test and / or a pneumatic-electronic examination of the perforated filter cigarettes are performed. By means of the opto-electronic test, it is also possible to check the positions of the perforation patterns as well as their position holes and the positions of the imprints and their relative orientation on the wrapping material to each other.

A further development of the device is further characterized in that an ejection device is provided for defective perforated filter cigarettes, in particular by means of a detection device and / or a test device for the filter cigarettes, the ejection device being dependent on a detected error and / or as a function of the deviation a test result of the filter cigarettes of a reference value is activated or activated and / or wherein the ejection device for the defective filter cigarettes downstream of the at least one perforation device and / or downstream of the test device, in particular camera, for the optical test and / or the test device for the ventilation and / or the testing device is arranged for the draw resistance of the filter cigarettes.

Further features of the invention will become apparent from the description of embodiments according to the invention together with the claims and the accompanying drawings. Embodiments of the invention may satisfy individual features or a combination of several features.

The invention will be described below without limiting the general inventive idea by means of embodiments with reference to the drawings, reference being expressly made to the drawings with respect to all in the text unspecified details of the invention. Show it:

1 a schematic representation of the structure and the ventilation levels of a filter cigarette;

2a a schematic representation of a portion of a filter attachment machine with a perforation device;

2 B a schematic representation of a portion of a filter attachment machine with two perforation devices;

3 schematically a perspective view of a filter cigarette in the cutout with two Perforationsmustern.

In the following figures, identical or similar elements or corresponding parts are provided with the same reference numerals, so that a corresponding renewed idea is dispensed with.

1 schematically shows the structure of a filter cigarette 100 , Here is the filter cigarette 100 in a tobacco rod 101 and a filter 8th divided up. The tobacco stick 101 is made from a porous cigarette wrap strip as a wrap strip 103 surround. For this purpose, the wrapping strip 103 previously wrapped around the tobacco rod in a stranding machine, not shown, and the wrapped tobacco rod is subsequently cut into tobacco rods of twice the use length. In a tipping paper strip designed as a wrapping material strip 9 of the wrapped filter 8th become after further process steps, as described below, ventilation slots as Perforationslöcher 104 a first perforation pattern 4 and additional ventilation holes as perforation holes 105 a second perforation pattern 5 of the tipping paper 9 brought in.

The perforation holes 104 of the first perforation pattern 4 are slot-shaped and on the circumference of the filter cigarette or the filter plug or the filter 8th in the tipping paper strip 9 educated. The perforation holes 105 of the second perforation pattern 5 are in a limited peripheral zone portion of the tipping paper strip 9 formed and additionally between the two first Perforationsmustern 4 with their respective slot-shaped perforation holes 104 introduced in the same track in the tipping paper strip. Here are the perforation holes 105 of the second perforation pattern 5 in the circumferential direction of the filter cigarette 100 arranged.

Preferably, the filter cigarette is 100 designed as a filter cigarette with variably adjustable ventilation. The tipping paper strip 9 is for example divided in the filter cigarette with variably adjustable degree of ventilation (cf. 3 ).

Preferably, the length of the second perforation pattern 5 in the circumferential direction, passing through the two perforation holes 105 at both ends of the perforation pattern 5 in a peripheral zone section, in the range of three to eight millimeters. In particular, the number of perforation holes 105 specifiable, in particular the second perforation pattern 5 several perforation holes 105 having.

It is also conceivable within the scope of the invention that, instead of a plurality of perforation holes 105 one or more perforation slots having a predetermined length in a defined peripheral zone portion of the tipping paper strip 9 between the first perforation patterns 4 is trained. In addition to the slit-like shape for perforation holes 105 a second perforation pattern 5 can the perforation holes 105 also have a round or oval shape.

The tipping paper strip 9 the filter cigarette 100 has a mouthpiece side tipping paper strip portion 91 and a tobacco rod side tipping paper strip portion 92 on. The tobacco rod side tipping paper strip section 92 is stuck with the tobacco rod 101 connected. Between the mouthpiece side tipping paper strip section 91 and the tobacco rod side tipping paper strip portion 92 is a seam area or a seam 93 thereby formed.

The entire filter plug 8th the filter cigarette 100 consists of at least two filter pieces or sections, wherein a filter piece, preferably the mouth piece side, filter piece with respect to the tobacco rod 101 connected tobacco rod side filter piece is rotatable.

The mouthpiece side tipping paper strip portion 91 with the first perforation pattern 4 and the second perforation pattern 5 is with a (not visible) filter piece of the filter 8th connected and opposite the tobacco rod side tipping paper strip portion 92 movable, in particular manually rotatable, since that with the mouthpiece side tipping paper strip section 91 connected filter piece rotatable in the filter 8th is stored. By turning the end-side and with perforation patterns 4 . 5 provided filter plug piece of the filter 8th around the respective center longitudinal axis of the filter cigarette 100 opposite the solid and with the tobacco stick 101 connected filter plug piece of the filter 8th It is possible, a preferred degree of ventilation of the filter cigarette 100 adjust individually during consumption.

How out 1 further apparent on the tobacco rod side tipping paper strip portion 92 a scale 95 and on the mouthpiece side and the center longitudinal axis of the filter cigarette 100 rotatable tipping paper strip section 91 an arrow 96 formed using a printing device, for. As inkjet printing unit for strips of material in the tobacco processing industry, are printed.

By the relative position of the scale 95 on the tobacco stick side tipping paper strip section 92 and the arrow 96 on the movable mouthpiece side tipping paper strip portion 91 becomes the set degree of ventilation of the filter cigarette 100 visually displayed. For this it is the application of the scale 95 and the arrow 96 on the respective tipping paper strip sections 91 . 92 required that the imprints or markings such. Eg scale 95 , Arrow 96 in terms of perforation patterns 4 . 5 exact position and accurate register before or after the perforation of the filter cigarettes 100 be printed.

In a not shown embodiment of the filter cigarette 100 is on the tobacco rod side tipping paper strip portion 92 a third perforation pattern with perforation holes as a kind of second track besides that from the two perforation patterns 4 . 5 formed (first) track on the mouthpiece side tipping paper strip portion 91 formed, whereby a predetermined minimum degree of ventilation of the filter cigarette 100 is or will be trained.

2a schematically shows a first embodiment of a filter attachment device 2 in the clipping. Such a filter attachment device 2 or Filteransetzmaschine is under the name "MAX" of HAUNI Maschinenbau AG, Hamburg, known.

After being made on a (cigarette) stranding machine not shown herein, the double length tobacco rods become the filter tipping device 2 promoted and handed over to this, there cut into simple use length and spaced and connected with inserted between them filter plug twice the length of use. For this purpose, the filter plug also a tipping paper strip is fed, which deducted from a tipping paper roll or reel, glued and sliced in leaflets, which are called on tipping paper leaflets. By rolling on an example. Stationary counter rolling surface are the filter cigarettes 100 with axially aligned filter plugs to finished filter cigarettes 100 assembled.

In the production of double filter cigarettes with two outer tobacco rods and arranged inside filter plug twice the length of use, these aforementioned groups are separated from each other by bonding glued pad flakes by cutting centrally, thus forming two webs of queraxial subsidized cigarettes. The filter cigarettes 100 the one lane are subsequently turned and with the filter cigarettes 100 the other web merged and then conveyed away in a web transverse axial for further processing.

In order to be able to supply secondary air to the smoke of the filter cigarettes, slit-like perforation holes are formed 104 a first perforation pattern 4 and punctiform perforation holes 105 of the second perforation pattern 5 inserted into the enveloped by a wrapping strip tobacco sticks and / or enclosed by the tipping paper leaflets filter plug using only a perforator 16 with a laser 17 , wherein preferably for each web of cross-axially promoted cigarettes a laser 17 is provided.

One from a controllable laser 17 outgoing laser beam 18 gets over mirror 19.a and 19.b as well as a lens 21 on the filter 8th so that using the pulsed laser beam 18 the laser 17 perforation 104 of the first perforation pattern through the tipping paper strip of the filter cigarettes 100 be fired, so when pulling on the filter cigarette 100 cool secondary air through the perforation holes 104 of the first perforation pattern in the filter 8th and / or tobacco rod 101 can enter where they are with the through the filter cigarette 100 flowing smoke stream mixed.

Further, using the same perforating device 16 with the laser 17 the perforation holes 105 of the second perforation pattern 5 in predetermined small peripheral zone portions of the tipping paper strip 9 between the first perforation patterns 4 generated. It is the controllable laser 17 outgoing laser beam 18 on the surface of the filter cigarette to be perforated 100 guided, so by the control of the laser 17 the two perforation patterns 4 . 5 (see. 1 ) be generated. This is the laser 17 operated such that at predetermined locations of the circumference of the filter cigarette 100 by means of a predetermined pulse sequence of a control device 36 for the laser and the corresponding pulse sequence of the laser beam 18 the tipping paper strip 9 is perforated. Due to the pulsed control of the laser 17 are preferably two diametrically opposite to the circumference of the filter cigarette 100 formed zones with the first perforation pattern 4 and a perforation pattern created therebetween 5 educated.

In the perforation process is a filter cigarette 100 on a perforation drum 22 on which they are pointing in the direction of the arrow 23 promoted and thereby by suction in channels 24 in hollows 26 is held. A rolling device in the form of an arrow 28 rotating roll cam 29 rolls the filter cigarettes 100 each at a rolling point such that during rolling their conveying movement in the direction of the arrow 23 interrupt, placing it on the circumference of the test drum 22 roll back relatively. Therefore, the laser beam can 18 which is in the form of pulses from the laser 17 is discharged, successively perforation holes 104 for the first perforation pattern 4 and perforation holes 105 for the second perforation pattern 5 in the filter plug 8th burn or form, which then in the circumferential direction of the filter cigarettes 100 lie one behind the other in a row. Here are also the perforation holes 105 of the second perforation pattern 5 in the tipping paper strip 9 by means of pulsed laser beams 18 the laser 17 educated.

The timing of the beginning of the perforation of a filter cigarette 100 and the individual laser pulses in one embodiment are triggered by a (not shown here cam, so that corresponding control signals from a roll on the cam 29 provided (not shown here) sensor to the control device 36 the laser 17 are given.

Instead of the cams mentioned, an opto-electronic or magneto-electronic rotary pulse generator or even a resolver can be provided in a further embodiment.

In one embodiment, it is further provided within the scope of the invention that for the control of the laser 17 the control device 36 receives corresponding control signals from an optoelectronic pressure mark button or a pressure control device to the perforation pattern 4 . 5 positionally accurate with respect to the printed on the wrapping material of the filter cigarettes markings and the like in the tipping paper strips.

In the context of the invention, other control operations of the perforation device 16 conceivable to appropriate perforation holes 104 the first perforation pattern, which are also called ventilation holes or ventilation slots, or corresponding perforation holes 105 of the second perforation pattern into the wrapping strips of the filter cigarettes 100 contribute or train.

In a further (not shown here) embodiment of the filter attachment device 2 is provided that upstream of the perforation device 16 before generating the perforation pattern 4 . 5 a printing device for applying an imprint or a mark z. Eg scale 95 , Arrow 96 (see. 1 ) is provided on the tipping paper strip. Such a printing device is z. In DE 10 2004 031 185 A1 described in detail. In this case, the imprints are generated in exact position and accurate register on the tipping paper strip by a pressure control device for the printing unit.

Following the perforation drum 22 the perforated filter cigarettes are in Direction of conveying the filter cigarettes 100 to a conveyor drum 30 and subsequent conveyor drums 39 . 40 further promoted and optionally using on the conveyor drums 39 . 40 arranged optical inspection systems subjected to an optical inspection. Here, the conveyor drum 30 also or additionally have pneumatic-electronic test systems to check the degree of ventilation of the filter cigarettes.

By means of the control pulse sequences of the control device 36 becomes the laser 17 for producing the first perforation pattern 104 and for generating the second perforation pattern 105 controlled.

2 B schematically shows a further embodiment of the filter attachment device 2 in the clipping.

In order to be able to supply secondary air to the smoke of the filter cigarettes, perforation holes are formed 104 a first perforation pattern 4 inserted in the enveloped by a wrapping strip tobacco sticks and / or enclosed by the tipping paper leaflets filter plug using a first perforator 16.1 with a first laser 17.1 , wherein preferably for each web of cross-axially promoted cigarettes a laser 17.1 is provided.

One from a first controllable laser 17.1 outgoing laser beam 18.1 gets over mirror 19.a and 19.b as well as a lens 21.1 on the filter 8th so that using the pulsed laser beam 18.1 the laser 17.1 perforation 104 of the first perforation pattern 4 through the tipping paper strip portion at the mouthpiece side portion of the rotatable piece of filter plug of the filter cigarettes 100 be fired, so when pulling on the filter cigarette 100 cool secondary air through the slot-like perforation holes 104 of the first perforation pattern 4 in the filter 8th and / or tobacco rod 101 can enter where they are with the through the filter cigarette 100 flowing smoke stream mixed.

Further, using a second perforator 16.2 with a second laser 17.2 the perforation holes 105 of the second perforation pattern 5 between the perforation holes 104 of the first perforation pattern 4 in predetermined small peripheral zone portions of the tipping paper strip 9 at the mouthpiece side portion of the rotatable piece of filter plug of filter cigarettes 100 generated.

Here is the controllable second laser 17.2 outgoing laser beam 18.2 over mirrors 19.c and 19.d as well as a lens 21.2 on the surface of the filter cigarette to be perforated 100 guided, so by the independent control of the two separate lasers 17.1 . 17.2 the two perforation patterns 4 . 5 (see. 1 ) are independently generated in a track on the mouthpiece side pad paper section for the filter plug.

In the perforation process is a filter cigarette 100 on a perforation drum 22 on which they are pointing in the direction of the arrow 23 promoted and thereby by suction in channels 24 in hollows 26 is held. A rolling device in the form of an arrow 28 rotating roll cam 29 rolls the filter cigarettes 100 each at a rolling point such that during rolling their conveying movement in the direction of the arrow 23 interrupt, placing it on the circumference of the test drum 22 roll back relatively. Therefore, the laser beam can 18.1 in the form of pulses from the first laser 17.1 is discharged, successively perforation holes 104 for the first perforation pattern 4 in the filter plug 8th on the mouthpiece side tipping paper strip section 91 of the formed with a rotatable filter piece filter plug (see. 1 . 3 ) burn or form, then in the circumferential direction of the filter cigarettes 100 lie one behind the other in a row. In a similar way, the perforation holes 105 of the second perforation pattern 5 in the tipping paper strip 9 by means of the pulsed laser beams 18.2 of the second laser 17.2 also on the mouthpiece side tipping paper strip section 91 of the formed with a rotatable filter piece filter plug (see. 1 . 3 ) educated.

The timing of the beginning of the perforation of a filter cigarette 100 and the individual laser pulses in one embodiment are triggered by a (not shown here cam, so that corresponding control signals from a roll on the cam 29 provided (not shown here) sensor to a control device 36 of the first laser 17.1 as well as the second laser 17.2 are given.

In the context of the invention, other control operations of the perforation device 16.1 or 16.2 conceivable to corresponding slot-like perforation holes 104 of the first perforation pattern 4 which are also called ventilation holes, or corresponding smaller, round or oval perforation holes 105 of the second perforation pattern 5 into the wrapping strips of filter cigarettes 100 contribute or train.

By means of the control device 36 become the first laser 17.2 for producing the first perforation pattern 4 and the second laser 17.2 for generating the second perforation pattern 5 controlled separately.

In 3 is a perspective view of a filter cigarette 100 shown in section, with perforated strips of cigarette wrapper as a tipping paper strip 9 is shown schematically, by means of which a cigarette is enveloped, at regular intervals in the circumferential direction slot-like perforation holes 104 and wherein a second perforation area 5 at the top of the filter cigarette 100 between the perforation holes 104 is visible.

How out 3 can be seen, the tipping paper strip 9 in a mouthpiece side tipping strip section 91 and a tobacco rod side tipping paper strip portion 92 divided, wherein the tobacco rod side tipping paper strip portion 92 stuck with the tobacco stick 101 connected is. The mouthpiece side tipping paper strip portion 91 is with a (not visible) filter piece of the filter 8th connected and opposite the tobacco rod side tipping paper strip portion 92 For example, manually rotatable, since that with the mouthpiece side tipping paper strip section 91 connected filter piece rotatable in the filter 8th is stored. This makes it possible to provide a filter cigarette with adjustable degree of ventilation, as a function of the position of the perforations formed as ventilation slots 104 the first perforation pattern 4 relative to air-permeable areas that are formed in the interior of the entire filter, the air sucked from the outside and thus the degree of ventilation of the filter cigarettes is influenced or influenced.

The groove-like or oblong hole perforation holes 104 of the first perforation pattern 4 are circumferentially in the tipping paper strip 9 formed linearly one behind the other in the circumferential direction. Here, the running in the circumferential direction of the filter cigarette perforation holes 104 of the first perforation pattern 4 a predetermined constant length, wherein also the distance in the circumferential direction between two perforation holes 104 each is kept constant. Due to the formation of equidistantly arranged, equally long perforation holes 104 of the first perforation pattern 4 a predetermined maximum degree of ventilation of the cigarette is formed. The perforation holes 104 of the first perforation pattern 4 are in the embodiment according to 3 evenly over the entire circumference of the filter cigarette 100 each distributed.

In addition, is off 3 it can be seen that the round-shaped perforation holes 105 of the second perforation pattern 5 in the circumferential direction of the filter cigarette between the perforation holes 104 the first perforation pattern 4 are formed. Here are in particular the first perforation pattern 4 and the second perforation pattern disposed therebetween at the mouthpiece-side end of the tipping paper strip 9 arranged.

The perforation holes 105 the second perforation pattern 5 are also equidistant at the periphery of the tipping paper strip 9 arranged, with the perforation holes 105 are the same length and / or the same size. In the context of the invention, it is also possible that the perforation holes 105 the perforation pattern 5 are arranged differently long and irregular.

In addition, on the tobacco stick side tipping paper strip section 92 a third perforation pattern 6 with, preferably regularly arranged perforation holes 106 in the circumferential direction of the filter cigarette 100 formed as a circumferential second, preferably parallel track, whereby the filter cigarette 100 is provided with an unchangeable minimum ventilation level. On the mouthpiece side tipping paper strip section 91 the rotatable portion or piece of filter plug 8th is through the two perforation patterns 4 . 5 formed a kind (first) track.

All mentioned features, including the drawings alone to be taken as well as individual features that are disclosed in combination with other features are considered alone and in combination as essential to the invention. Embodiments of the invention may be accomplished by individual features or a combination of several features.

LIST OF REFERENCE NUMBERS

2

filter attachment

4

first perforation pattern

5

second perforation pattern

6

third perforation pattern

8th

filter

9

Covering paper strip

16

perforation

16.1, 16.2

perforation

17

laser

17.1, 17.2

laser

18

laser beam

18.1, 18.2

laser beam

19.a, 19.b

mirror

19.c, 19.d

mirror

21

lens

21.1, 21.2

lens

22

perforating

23

arrow

24

channels

26

Hopper

28

arrow

29

roll cams

30

conveyor drum

36

control device

39

conveyor drum

40

conveyor drum

91

Tipping paper strip section

92

Tipping paper strip section

93

seam

95

scale

96

arrow

100

filter cigarette

101

tobacco rod

103

wrapping strip

104

perforation

105

perforation

106

perforation

Claims (13)

Method for producing filter cigarettes ( 100 ), the filter cigarettes ( 100 ) each of a wrapping material ( 9 . 103 ), wherein a perforation device ( 16 ), in particular a laser ( 17 ) of the perforation device ( 16 ), by means of a control device ( 36 ) is controlled for the production of perforations such that, using the perforation device ( 16 ) in the circumferential direction of the respective filter cigarettes ( 100 ) first perforation pattern ( 4 ) with slot-shaped perforation holes ( 104 ) is generated and between the circumferentially of the respective filter cigarettes ( 100 ) or formed slot-shaped perforation holes ( 104 ) of the first perforation pattern ( 4 ) in a peripheral zone portion of the wrapping material ( 9 . 103 ) of filter cigarettes ( 100 ) a second perforation pattern ( 5 ) with at least one or more perforation holes ( 105 ) is additionally generated, whereby filter cigarettes ( 100 ) with variably adjustable degree of ventilation through the first perforation pattern ( 4 ) and the second perforation patterns ( 5 ) are produced, wherein the first perforation pattern and the second perforation pattern on a with wrapping material ( 9 . 103 ), movable section of the filter cigarettes ( 100 ), preferably on a movable tipping strip portion of the filter plug, are or are, and wherein a third perforation pattern ( 6 ) in a second track adjacent to a first track having the first perforation pattern ( 4 ) and the second perforation pattern ( 5 ), on the circumference on a with wrapping material ( 9 . 103 ), fixed section of filter cigarettes ( 100 ), preferably on a non-movable padded paper strip ( 92 ) of the filter plug ( 8th ), is generated or is. A method according to claim 1, characterized in that when forming a second perforation pattern ( 5 ) the length of the peripheral zone section for the second perforation pattern ( 5 ), in particular for perforation patterns ( 5 ) having a plurality of perforation holes, smaller than half the total circumferential length of the respective filter cigarettes ( 100 ), in particular less than one third of the total circumferential length or less than one quarter of the total circumferential length of the respective filter cigarettes ( 100 ), and that the second perforation pattern ( 5 ) in each case between the perforation slots ( 104 ) of the first perforation pattern ( 4 ) on the filter cigarettes ( 100 ) is generated or is. Method according to claim 1 or 2, characterized in that the first perforation patterns ( 4 ) in the circumferential direction of the filter cigarettes ( 100 ) regularly arranged perforation slots ( 104 ) are generated or are. Method according to one of claims 1 to 3, characterized in that the first perforation pattern ( 4 ) and the second perforation pattern ( 5 ) on a wrapping material ( 9 . 103 ) for the filter of filter cigarettes ( 100 ) formed tipping paper ( 9 ) be generated. Method according to one of claims 1 to 4, characterized in that the first perforation pattern ( 4 ) each having a perforation slot ( 104 ) are formed and the perforation slots ( 104 ) diametrically on the circumference of the filter cigarettes ( 100 ) are formed opposite to each other. Method according to one of claims 1 to 5, characterized in that the first perforation pattern ( 4 ) and the second perforation pattern ( 5 ) in or on the same funding body ( 22 ), in particular the same conveyor drum ( 22 ), in the wrapping material ( 9 . 103 ) of filter cigarettes ( 104 ) are generated respectively. Method according to one of claims 1 to 6, characterized in that prior to generating the perforation pattern ( 4 . 5 . 6 ) upstream of the perforation device ( 16 . 16.1 16.2 ) the wrapping material ( 9 . 103 ), in particular the tipping paper strip of filter cigarettes ( 100 ), with a print ( 95 . 96 ) is provided by means of a printing device, wherein the imprint ( 95 . 96 ) the wrapping material ( 9 . 103 ) is designed as a scale and / or as an arrow and / or wherein the first and second perforation patterns ( 4 . 5 ) exact position relative to the imprint ( 95 . 96 ) on the wrapping material ( 9 . 103 ) of filter cigarettes ( 100 ) be generated. Method according to one of claims 1 to 7, characterized in that after the generation of the first and the second perforation pattern ( 4 . 5 ) downstream of the perforation device ( 16 ) the perforated filter cigarettes ( 100 ), whereby the filter cigarettes ( 100 ) be subjected to a visual inspection and / or a ventilation test and / or a Zugwiderstandsprüfung. Contraption ( 2 ), in particular filter attachment machine, for the production of filter cigarettes ( 100 ), the filter cigarettes ( 100 ) each of a wrapping material ( 9 . 103 ) are wrapped, in particular for carrying out the method according to one of claims 1 to 8, characterized in that a perforation device ( 16 ) and a control device ( 36 ) for the perforation device ( 16 ) are provided for the production of perforations, wherein the perforation device ( 16 ), in particular a laser ( 17 ) of the perforation device ( 16 ), by means of the control device ( 36 ) is controllable for the production of perforations such that, using the perforation device ( 16 ) in the circumferential direction of the respective filter cigarettes ( 100 ) first perforation pattern ( 4 ) with slot-shaped perforation holes ( 104 ) is generated and between the circumferentially of the respective filter cigarettes ( 100 ) or formed slot-shaped perforation holes ( 104 ) of the first perforation pattern ( 4 ) in a peripheral zone portion of the wrapping material ( 9 . 103 ) of filter cigarettes ( 100 ) a second perforation pattern ( 5 ) with at least one or more perforation holes ( 105 ) is additionally producible, whereby filter cigarettes ( 100 ) with variably adjustable degree of ventilation through the first perforation pattern ( 4 ) and the second perforation patterns ( 5 ) can be produced, wherein the first perforation pattern and the second perforation pattern on a with wrapping material ( 9 . 103 ), movable section ( 91 ) of filter cigarettes ( 100 ), preferably on a movable section provided with a tipping paper strip ( 91 ) of the filter plug ( 8th ), and wherein a separate perforation device is provided such that a third perforation pattern ( 6 ) in a second track adjacent to a first track having the first perforation pattern ( 4 ) and the second perforation pattern ( 5 ), on the circumference on a with wrapping material ( 9 . 103 ), fixed section of filter cigarettes ( 100 ), preferably on a non-movable padded paper strip ( 92 ) of the filter plug ( 8th ), is generated or is. Apparatus according to claim 9, characterized in that a first perforation device ( 16.1 ) for producing the first perforation pattern ( 4 ) and a second perforation device ( 16.2 ) for producing the second perforation pattern ( 5 ) are provided, wherein the first perforation device ( 16.1 ) and the second perforation device ( 16.2 ) each with the control device ( 36 ) and / or wherein the first perforation device ( 16.1 ) is provided in or on a first conveying member, in particular conveying drum, and the second perforating device ( 16.2 ) is provided in or on a second conveying member, in particular second conveyor drum. Apparatus according to claim 10, characterized in that a pressure device for applying an imprint, a scale and / or an arrow, on the wrapping material, in particular the tipping paper strip of the filter cigarettes, is provided, wherein the pressure means with respect to the conveying direction of the filter cigarettes upstream or downstream the perforating device for the wrapping material is arranged, wherein a pressure control device is provided for the printing device, such that the first and second perforation patterns ( 4 . 5 ) are generated or generated in a positionally accurate relative to the imprint on the wrapping material of the filter cigarettes and / or depending on the position of the imprint on the wrapping material. Apparatus according to claim 10 or 11, characterized in that in the conveying direction of the filter cigarettes ( 100 ) downstream of the at least one perforation device ( 16 . 16.1 . 12.2 ) a test device for those with a first and second perforation pattern ( 4 . 5 ) perforated filter cigarettes ( 100 ), in particular for carrying out an optical test and / or a ventilation test and / or a draw resistance test, is provided. Device according to one of claims 11 to 12, characterized in that an ejection device for defective, in particular by means of a detection device and / or a test device for the filter cigarettes, detected perforated filter cigarettes is provided, wherein the ejection device in response to a detected error and / or in dependence the deviation of a test result from a reference value is activatable or activated and / or wherein the ejection device for the defective filter cigarettes downstream of the at least one perforation device and / or downstream of the test device, in particular camera, for the optical test and / or the test device for the ventilation and / or the testing device is arranged for the draw resistance of the filter cigarettes.

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