WO2005115181A1 - Cigarette producing apparatus - Google Patents

Abstract

A cigarette producing apparatus has a filter plug installation mechanism for coaxially butting a filter tip on an end section of a cigarette and then winding tip paper around the outer peripheral surface of the butt section; a laser perforating device for perforating air permeation holes in the tip paper by irradiating the tip paper with a laser beam to perforate the air permeation holes in the tip paper, the irradiation being made on that side (rear surface) of the tip paper which adheres to the cigarette and the filter plug; and an air permeability measuring device for measuring the air permeability of the tip paper. The laser perforating device is feedback controlled depending on the measured air permeability to adjust air permeation resistance (Vf) of a filter cigarette.

Description

 Specification

 Cigarette manufacturing equipment

 Technical field

 The present invention provides a cigarette with a filter, in which a filter plug is mounted on an end of the cigarette, by abutting a cigarette and a filter plug on each other and winding a tip paper around an outer peripheral surface of the abutting portion. The present invention relates to a cigarette manufacturing apparatus to be manufactured.

 Background art

 [0002] A cigarette with a filter is, for example, as disclosed in Japanese Patent Application Laid-Open No. 4-316474, coaxially butted with a filter plug at the end of a round bar-shaped cigarette encased with cigarette wrapping paper. It is manufactured by winding a tip vapor around the outer peripheral surface of the butted portion. At this time, as disclosed in, for example, US Pat. No. 6,675,811, the ventilation resistance Vl ^ of the filter-attached cigarette is adjusted by previously forming a ventilation hole in the tip vapor. Alternatively, after the tip paper is wound around the butted portion of the cigarette and the filter plug, a ventilation hole is formed in the tip paper to adjust the ventilation resistance Vl ^ of the cigarette with the filter.

 [0003] By the way, the ventilation resistance Vf of a cigarette with a filter depends on the quality of tobacco cut, the hardness of the winding (the filling amount of tobacco cut) and the like. Therefore, even if the ventilation holes (opening air permeability) of the tip paper itself are adjusted in advance by forming the ventilation holes in the tip paper as in the former case, the ventilation of the cigarette with the filter as the final product is prevented. Resistance Vl ^ cannot be guaranteed. On the other hand, if the laser beam is applied to the tip paper wound around the abutting portion between the cigarette and the filter plug to form a ventilation hole (referred to as a rod opening hole) as in the latter case, for example, There is a problem that a hole can be made in the filter plug. In this case, there is a problem that the taste of the cigarette is changed by the irradiation of the laser beam, and the smell due to the burning of the filter plug is generated. Furthermore, it is necessary to remove the ash (chip-paper cinders) generated due to the opening of the ventilation holes.

 Disclosure of the invention

SUMMARY OF THE INVENTION [0004] The present invention provides a proper ventilation hole in a chip paper without causing the above-mentioned problems. The purpose of the present invention is to provide a cigarette manufacturing apparatus having a function of easily adjusting the ventilation resistance of a cigarette with a filter.

 [0005] In order to achieve the above-mentioned object, a cigarette manufacturing apparatus according to the present invention is configured as described in claim 1.

 A> A filter plug mounting mechanism for coaxially butting the filter tip against the end of the cigarette, winding the tip vapor around the outer peripheral surface of the butted portion, and mounting the filter plug on the end of the cigarette;

 B> The tip paper is provided in a supply path of the tip paper to the filter plug mounting mechanism, and is irradiated with laser light from the adhesive surface (back surface) of the tip paper to the cigarette and the filter plug. A laser opening device for opening a vent hole in the chip; and c> an air permeability measurement device provided downstream of the laser opening device for measuring the air permeability of the chip vapor having the opening hole. Equipment and

 It is characterized by having

 Preferably, the laser aperture device is such that the output intensity and Z or the irradiation time of the laser beam are feedback-controlled according to the output of the air permeability measuring device as described in claim 2.

 [0006] That is, the cigarette manufacturing apparatus according to the present invention irradiates a laser beam to the tip paper in the course of supplying the tip paper to the filter plug mounting mechanism to open the minute air holes. Thus, the airflow resistance (opening air permeability) can be adjusted in real time. This technique is referred to herein as pre-opening. In addition, by irradiating the laser light with a force applied to the bonding surface (rear surface) of the chip paper with respect to the cigarette, scorch generated around the ventilation hole due to the opening of the ventilation hole is caught in the inner surface of the cigarette with a filter. As a result, the cigarette with the filter is not visible from the outside (appearance).

 In this case, it is desirable to control the airflow resistance (opening air permeability) of the tip vapor according to the airflow resistance Vf of the manufactured cigarette with a filter.

 [0007] Further, according to the cigarette manufacturing apparatus of the present invention, the cigarette manufacturing apparatus further includes:

D> a traveling position sensor provided upstream of the laser aperture device and detecting a traveling position in a width direction of the tip paper; E> a meandering correction mechanism that is provided downstream of the laser aperture device and that corrects the running position of the tip paper in the width direction based on the detection result of the running position sensor. You.

 Preferably, the meandering correction mechanism is provided at an angle to a width direction of the tip paper as described in claim 4, and a turn bar for changing a traveling direction of the tip paper, and detection by the traveling position sensor. And a slide mechanism for sliding the turn bar in the width direction of the tip vapor based on the result.

 [0008] That is, the cigarette manufacturing apparatus according to the present invention, by correcting the meandering of the tip paper, by using the laser opening device described above to open the ventilation hole in the tip paper, thereby setting the opening position. The placement of the tip paper is regulated with high precision, and the quality of the tip paper itself with perforated holes is improved. At the same time, by aligning the openings of the ventilation holes in the filter-equipped cigarette, the ventilation resistance Vl ^ can be easily fixed! /

 [0009] According to the cigarette manufacturing apparatus configured as described above, in the process of supplying the tip paper to the filter plug mounting mechanism, the ventilation holes are formed online in the tip paper, so that, for example, the manufactured cigarette is manufactured. It is possible to immediately (real-time) control the airflow resistance (opening air permeability) of the tip vapor according to the airflow resistance Vf of the cigarette with filter. Therefore, even if the ventilation resistance of the cigarette itself changes due to the characteristics of tobacco cutting, etc., the ventilation resistance of the cigarette with a filter, which is the final product, can be easily reduced.

 [0010] Furthermore, since the back surface side laser beam, which is an adhesive surface of the chip paper to the cigarette, is irradiated with laser light to open the ventilation hole, even if the laser light irradiation surface (back surface) of the chip paper is scorched. The scorched portion is caught on the inner surface of the cigarette with a filter. As a result, the scorched portion cannot be seen from the outer surface of the cigarette with a filter, so that the appearance quality of the cigarette with a filter can be improved.

Further, according to the cigarette manufacturing apparatus having the meandering correcting mechanism described above, the displacement of the tip paper in the width direction can be easily corrected. It is possible to stably align the position. Therefore, supply the tip paper with vent holes at predetermined positions to the filter plug mounting mechanism. Therefore, it is possible to stabilize the production quality of the cigarette with a filter. Brief Description of Drawings

 FIG. 1 is a diagram showing a schematic configuration of a cigarette manufacturing apparatus according to one embodiment of the present invention.

 FIG. 2 is a plan view of a principal part showing a transport path of a chip paper in the cigarette manufacturing apparatus shown in FIG. 1.

 FIG. 3 is a diagram showing a configuration of a chip-paper transport path around a laser aperture unit.

 FIG. 4 is a diagram showing a schematic configuration of a laser unit forming a laser aperture unit.

 FIG. 5 is a diagram showing a control mode of a laser unit.

 BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, an apparatus for manufacturing a cigarette with a filter according to an embodiment of the present invention will be described with reference to the drawings.

 In this cigarette manufacturing apparatus, basically, a filter plug is coaxially butted against an end of a round bar-shaped cigarette manufactured by wrapping a tobacco cut with a cigarette by a tobacco winding machine (not shown). Thereafter, a tip paper coated with glue (adhesive) on one side is wound around the outer peripheral surface of the butted portion of the cigarette and the filter plug, whereby the cigarette and the filter plug are joined to form a cigarette with a filter. It is manufactured.

[0014] The cigarette manufacturing apparatus is mainly composed mainly of a filter plug mounting mechanism 10 provided with a drum row 1 in which a plurality of transport drums are arranged in a horizontal direction as shown in FIG. Is done. Each transport drum in the filter plug mounting mechanism 10 has a plurality of holding grooves in the outer peripheral surface thereof which are held in the axial direction of the cigarette and the filter plug along the axial direction of the drum in the circumferential direction of the drum. Provided at equal intervals. The cigarettes and the filter plugs are sequentially transferred between adjacent drums as the respective transport drums rotate, that is, transported on the transport path formed by the drum row 1 while sequentially moving over a plurality of transport drums.

Incidentally, the cigarette manufactured by a cigarette winder (not shown) and supplied to the filter plug mounting mechanism 10 is a so-called double-length cigarette having a length corresponding to two single cigarettes in the final product. . The double-length cigarette is cut into two single cigarettes by a rotary knife (not shown) in the filter plug mounting mechanism 10, and the cigarettes are alternately cut. 分離 is separated in the axial direction. Although not shown, the filter plug supplied from the rod hob is positioned between the two single cigarettes. In this state, the two single cigarettes are moved toward the center, respectively, so that both ends of the filter plug are provided. Each single cigarette is then coaxially butted. The filter plug located between the single cigarettes is a filter plug that is twice as long as the filter attached to the final product, a cigarette with a filter.

 [0016] Specifically, the double-length cigarette manufactured by the tobacco winding machine is supplied to the separate drum la of the drum row 1 shown in FIG. The double-length cigarette is cut by a rotary knife on a separate drum la, and is transferred to a hopper drum lb with two single cigarettes abutting coaxially. A filter plug is then coaxially butted between the two single cigarettes on the hopper drum lb.

 [0017] In addition, the hopper drum lb is supplied with a chipper piece that has been coated with glue (adhesive) on one side by a gammer unit 2 described later and that has been cut into a predetermined length by a cutter drum 3. Have been. The tip of this chip vapor piece is attached to the outer peripheral surface including the butted portion of the filter plug held by the hopper drum lb and two single cigarettes. Then, with the rotation of the hopper drum lb, the filter plug and the two single cigarettes described above are sandwiched between the hopper drum lb and the rolling plate 4 provided on the outer peripheral surface thereof, and the hopper drum lb rotates. The tip paper piece is wound around the outer peripheral surface. In this manner, the two single cigarettes are coaxially joined and integrated at both ends of the filter plug with the tip vapor pieces wound around the outer peripheral surface of the butted portion of the filter plug and the single cigarette. , A double filter cigarette is formed.

 [0018] The double filter cigarette wound around the tip paper piece and joined and integrated is sequentially conveyed via a plurality of conveyance drums lc, ...: Ld connected to the subsequent stage of the hopper drum lb. During this transport process, the double filter cigarette is cut at the center of the filter plug and separated into two single filter cigarettes (cigarettes with a filter). It is sent to the supply unit 5.

At this time, one of the two cut single filter cigarettes is sent out to the above-mentioned winding supply section 5 as it is, and the other single filter cigarette is sent to the tarjung drum le. Then, the direction is inverted by 180 ° and sent out to the winding supply unit 5. As a result, all the forces of the single filter cigarette are sent to the winding supply unit 5 with their directions aligned in one direction. These single filter cigarettes are sequentially sent out from the winding supply unit 5 to a packaging device (packaging device) not shown.

 [0020] The filter plug mounting mechanism 10 configured as described above is described in detail in Japanese Patent Application Laid-Open No. 4-316474 described above. Also, the specific configuration of the arrangement of the drum row 1 and the transport drums la, lc, ...: Ld and hopper drum lb can be variously modified according to the specifications. In addition, the glue unit 2 also applies glue (adhesive) to one side of the tip paper, and then cuts the chip vapor piece into a predetermined length with the cutter drum 3 to obtain an intermediate product of the cigarette held by the hopper drum lb. It is sufficient if it has a function to supply the data sequentially.

 Now, the supply of the tip paper to the filter plug mounting mechanism 10 described above is disposed on the rear side of the winding supply unit 5 as shown in FIG. 2 showing a schematic plan configuration of the cigarette manufacturing apparatus. It is performed continuously from the tip paper supply unit 20. The tip paper supply section 20 feeds the tip paper through a supply path 22 while continuously rewinding the tip paper from a paper drum 21 on which a long chip vapor having a predetermined width is wound. The filter plug is supplied to the unit 2 of the filter plug mounting mechanism 10 described above. As shown in FIG. 2, the supply path 22 folds the tip paper, which is sent out at the outlet of the tip paper supply unit 20, to the front side of the cigarette manufacturing apparatus, and further returns to the front side of the cigarette manufacturing apparatus. The filter plug mounting mechanism 10 is configured to be supplied to the cattle unit 2 while being turned back toward the lower part on the front side.

That is, the supply path 22 for the tip paper is provided by using the excess space in the existing filter plug mounting mechanism 10, and the tip paper supply path arranged at the rear (back side) of the filter plug mounting mechanism 10. The section 20 is set so as to reach the gamut unit 2 while appropriately changing the supply direction of the tip paper. Particularly, in the middle of the supply path 22 of the chip paper, a laser opening unit 30 described later for opening a vent hole in the chip paper is provided. The laser aperture unit 30 is installed using a space between the filter plug mounting mechanism 10 and the winding supply unit 5. Also, on the downstream side of the laser aperture unit 30, An air permeability measurement unit 40 is provided for measuring the air flow resistance (air permeability) of the chip paper having the above-described air holes.

 More specifically, the tip paper P is sent out from the tip paper supply unit 20 via the first reservoir 23. Then, the tip paper P is folded back from the outlet of the tip paper supply section 20 toward the front side of the cigarette manufacturing apparatus via the turn bar 22a, and then guided to the laser aperture unit 30. After passing through the laser aperture unit 30 and having a vent hole, the tip paper P is guided to the air permeability measurement unit 40, where the air permeability is measured, and then passed through the second reservoir 24. It is continuously supplied to the above-mentioned turtle unit 2.

 On the downstream side of the laser aperture unit 30, a delivery roller 25 for delivering the tip paper P at a constant speed is provided as shown in FIG. On the upstream side of the laser aperture unit 30, there is provided a movable turn bar mechanism 26 for turning the conveying direction of the tip paper P sent out to the front side of the cigarette manufacturing apparatus by 90 ° and guiding the tip paper P to the laser aperture unit 30. It is set up. The movable turn bar mechanism 26 includes a turn bar 26a provided at an angle of 45 ° to the traveling direction of the tip paper P. The turn bar 26a changes the running position of the tip paper P by displacing in the width direction of the feed roller 25, whereby the tip paper P passing through the laser aperture unit 30 is moved by the tip base. It has the role of changing the width in the direction of P.

[0025] Between the feeding roller 25 and the laser aperture unit 30, there are provided optical sensors 27a and 27b for detecting the positions of the edges in the width direction of the chip paper P, respectively. By these optical sensors 27a and 27b, the positional forces at both edges of the tipper P whose ventilation holes are opened by the laser aperture unit 30 The preset reference positional forces of the optical sensors 27a and 27b The object distances are detected as xl and x2, respectively. The arithmetic controller 28 drives the motor 29 from the distance xl, x2 measured as described above so that the distance difference [xl-x2] becomes zero (0), for example. The travel position of the tip paper P is feedback-controlled in the width direction by displacing the position of the turn bar 26a. If the distance difference [xl-x2] exceeds the control limit threshold, the arithmetic controller 28 determines that the displacement in the width direction of the traveling position of the chip base is abnormally large, and issues an exclusion command. Emit. The traveling position (transport position) of the tip paper P guided to the laser aperture unit 30 in the width direction (transport position) is defined with high accuracy by such a meandering correction function of the tip paper P using the movable turn bar mechanism 26. Is done. Then, under the control of the traveling position of the tip paper P, the laser aperture unit 30 sequentially opens the ventilation holes at predetermined positions of the chip base. The laser aperture unit 30 is located at positions B1, B2, C1, and C2, which are within a predetermined distance from the positions Al and A2 at both ends of the chipper P, as shown in, for example, an enlarged view in FIG. The laser beam is intermittently radiated, and the ventilation holes are sequentially formed in four rows in the longitudinal direction of the chip base.

 The chip paper P is guided to the laser aperture unit 30 such that the back surface thereof faces a laser beam irradiation source (laser head). The back surface side of the tip paper P is a surface that is glued in the ball unit 2 and is wound around the cigarette and the filter plug in the filter plug mounting mechanism 10 described above. In other words, when the chip base is wrapped around the cigarette and the filter plug, the surface that is not wrapped inside and exposed to the outside is the back surface of the chip paper P. The laser aperture unit 30 is configured to open a ventilation hole by irradiating the chip paper P with laser light from the back side thereof.

 On the other hand, the above-described air permeability measuring unit 40 for measuring the air permeability of the tip paper P having the vent holes formed therein is, for example, a suction table (e.g. (Not shown), and is configured to suck the tip table running at a constant speed on the suction table through the suction hole opened in the suction table toward the table surface. . Then, the air permeability measuring unit 40 determines the amount of air flowing in through the air holes, and the air flow through the chip paper p, from the pressure required to absorb a certain amount of air through the chip paper P. It measures the degree (ventilation resistance).

 Here, the laser aperture unit 30 will be described in more detail. The laser unit forming the main part of the laser aperture unit 30 basically includes, for example, a CO laser oscillator 31 as shown in FIG. The laser unit is generated by the CO laser oscillator 31

twenty two

The output of the laser beam L is controlled via an acoustic light control element (AOM) 32, and only a part of the laser beam L is shaped into a pulse (rectangular) and emitted, and the output is blocked. The laser beam L is configured to be absorbed by a damper 33 serving as a laser beam absorber. In addition, the laser unit enlarges the laser beam L selectively output in a pulse form through the AOM 32 through a magnifying (beam expander) lens 34, and then narrows the beam into a beam form through a condenser lens 35. And is configured to irradiate the tip paper P.

 In FIG. 4, reference numerals 36a, 36b, and 36g denote total reflection mirrors that define the optical path of the laser light L. Reference numeral 37 denotes a spectral mirror that splits the laser light L output from the AOM32 into two optical paths. It is. Reference numerals 38 and 38 denote shirts inserted in the respective optical paths of the split laser light L.

 Specifically, the laser unit emits light from a particularly long and large CO laser oscillator 31.

 2

 The emitted laser light L is transmitted through the two-stage total reflection mirrors 36a and 36b to the CO laser oscillator 3 described above.

 2

 Turn back above 1 and lead to AOM32 provided above the CO laser oscillator 31

 2

 It has become something. The AOM 32 is located above the CO laser oscillator 31.

 2

 The laser beam L whose output has been controlled through the laser beam is split into two laser beam beams L, L parallel to the horizontal direction using a spectroscopic mirror 37 and a total reflection mirror 36e, and these laser beam beams L, L are separated. It is configured to irradiate downward from the total reflection mirrors 36f, 36g via the condenser lenses 35, 35. That is, this laser unit is mounted above a long and large CO laser oscillator 31.

 2

 This optical system is arranged to form a two-story structure, thereby achieving compactness.

The laser aperture unit 30 described above includes two laser units in parallel as shown in FIG. 4, so that a total of four laser beams L are applied to the chip paper P in the width direction. Irradiation is made to each of the predetermined positions different from each other, whereby the ventilation holes are formed in four rows as described above. As shown in FIG. 2, the laser aperture unit 30 is provided with a cooling unit 39 as an ancillary equipment. The cooling unit 39 cools the CO laser oscillator 31 and the damper 33 described above, and the like. Stable movement

 2

 I secure the work.

 Here, the output control of the laser beam L using the AOM 32 will be briefly described. The driving of the CO laser oscillator 31, which is the laser light source, is performed by a rectangular laser as shown in Fig. 5.

 2

 This is performed by applying a start pulse. By applying this laser start pulse

The intensity of the CO laser oscillator 31 increases with a certain time delay, The laser beam L whose intensity gradually decreases with the disappearance of the luz is emitted. When the laser beam L exhibiting such a change in intensity is applied to the tip paper P to open the air hole, the shape of the air hole becomes elliptical as shown by the broken line α in FIG. Type).

Therefore, in the above-described laser unit, the laser light L exhibiting the above-described intensity change is input to the acoustic light control element (ΑΟΜ) 32 and cut into a pulse shape, and the laser light L having a stable intensity at the center is obtained. Only to the tip paper. As a result, the shape of the vent hole formed in the tip paper becomes substantially circular as shown by the hatched portion β in FIG.

 In particular, in this laser unit, the laser light output from the CO laser oscillator 31

 2

 When a part of L is cut off by the AOM32 and irradiates the tip paper P, the air permeability of the tip paper P whose ventilation holes are opened by the irradiation of the laser light L is measured, and according to the measurement result. In this way, the driving conditions of the AOM 32 are feedback-controlled. Specifically, the delay time (phase) Pf from the laser start pulse, the drive time Pw of the AOM32, and its output intensity Pv are controlled, thereby optimizing the size and shape of the vent hole. I have.

 That is, the laser unit extracts the laser beam having the optimum power for forming the ventilation hole by controlling the delay time (phase) Pf, and controls the driving time Pw to control the delay time (phase) Pf. The opening width of the vent is adjusted by adjusting the opening length and controlling the output intensity Pv. By adjusting the opening length and the opening width of the ventilation hole, the air permeability of the ventilation hole and, consequently, the air permeability of the tip paper P are adjusted. Especially CO laser oscillator 31?

 2

 In a portion where the intensity of the laser light output from the laser beam is stable, the output intensity and the output time are adjusted to open a ventilation hole having a desired size and shape.

According to the cigarette manufacturing apparatus configured as described above, the tip paper supply path 20 for continuously supplying the tip paper from the tip paper supply unit 20 to the filter plug mounting mechanism 10 is provided. In the laser aperture unit 30 provided on the way, an air hole is continuously opened to the tip paper P before being supplied to the ball unit 2 of the filter plug mounting mechanism 10 (pre-opening). Therefore, even if the ventilation resistance of the cigarette itself changes depending on the properties of the tobacco cut and its filling amount, the above-described air permeability measurement unit 40 monitors the cigarette. By simply changing the air permeability control target value of the tip paper P to be viewed and adjusting the size of the air holes to be opened in the tip paper P, the ventilation resistance Vl required for the final product, a cigarette with a filter, A tip paper having a vent hole that can be filled can be supplied to the filter plug mounting mechanism 10 online.

 In the above cigarette manufacturing apparatus, laser beam is also applied to the surface side force from the back side of the tip paper P, that is, when the chip is wound around the cigarette, to open the air holes. There is a hole. Therefore, even if the opening of the ventilation hole in the tip paper P and its surroundings are scorched, the scorching is directed to the inner surface of the tip wrapped around the filter-attached cigarette. Therefore, the scorch is not visible from the front side of the cigarette with a filter, so that the appearance quality of the cigarette with a filter can be kept beautiful. Further, as described above, when the vent hole is opened in the tip paper P, the meandering of the tip paper P is suppressed by using the movable turn bar mechanism 26, so that the predetermined position of the tip paper P is determined. It is possible to stably form a ventilation hole. Therefore, the ventilation holes formed in the tip paper P wound on the cigarette with a filter are arranged in order, so that the appearance quality of the cigarette with a filter can be kept beautiful.

Note that the present invention is not limited to the above embodiment. In this example, the laser aperture unit 30 that forms four rows of ventilation holes in the tip paper P has one row along each edge of the tipper, and two rows of ventilation holes are formed. The same can be applied to the case where Alternatively, the ventilation pitch may be controlled by changing the opening pitch of the ventilation holes. In addition, reservoirs 23 and 24 are provided on the upstream side and downstream side of the laser aperture unit 30 in the tip paper transport path 22, respectively, and the transport speed of the tip paper P to be supplied to the laser aperture unit 30; The tension of the tipper p between the reservoirs 23 and 24 may be kept constant. It is also effective to provide a reservoir upstream of the gambling unit 2 so that the supply speed of the tip paper P supplied to the gambling unit 2 is kept constant.

In addition, a continuously manufactured cigarette with a filter is sampled, its air permeability (air resistance) is measured off-line, and the measurement result is fed back to the laser opening unit 30 to modify the control parameters of the air hole opening. It is also useful. In addition, the present invention Various modifications can be made without departing from the spirit of the invention.

Claims

The scope of the claims  [1] A filter plug mounting mechanism for abutting a filter tip on an end of a cigarette, winding a tip vapor around the outer peripheral surface of the butted portion, and joining the cigarette and the filter plug;  The tip paper is provided in the supply path of the tip paper to the filter plug mounting mechanism, and the tip surface of the tip paper adheres to the cigarette and the filter plug. A laser drilling device that drills,  An air permeability measurement device provided on the downstream side of the laser aperture device for measuring the air permeability of the chip paper having the air holes opened;  A cigarette manufacturing apparatus comprising:  2. The cigarette according to claim 1, wherein the laser aperture device includes an acousto-optical control element that shapes only a part of the laser light output from the laser oscillator into a pulse shape and emits the pulsed light. manufacturing device.  3. The cigarette manufacturing apparatus according to claim 1, wherein the laser aperture device feedback-controls the output intensity and Z or the irradiation time of the laser light in accordance with the output of the air permeability measuring device. [4] The cigarette manufacturing apparatus according to claim 1,  A travel position sensor provided downstream of the laser aperture device to detect a travel position in a width direction of the tip paper;  A meandering correction mechanism provided upstream of the laser opening device and configured to correct a running position of the tip paper in a width direction based on a result detected by the running position sensor. . [5] The meandering correcting mechanism is provided at an angle to the width direction of the tip paper and changes a traveling direction of the tip paper, and based on a result detected by the traveling position sensor. 5. The cigarette manufacturing apparatus according to claim 4, further comprising a slide mechanism for sliding the turn bar in a width direction of the tip paper.