EP3170411B1 - Appareil et procédé de production d'un filtre de cigarette - Google Patents

Appareil et procédé de production d'un filtre de cigarette Download PDF

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Publication number
EP3170411B1
EP3170411B1 EP14897870.3A EP14897870A EP3170411B1 EP 3170411 B1 EP3170411 B1 EP 3170411B1 EP 14897870 A EP14897870 A EP 14897870A EP 3170411 B1 EP3170411 B1 EP 3170411B1
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EP
European Patent Office
Prior art keywords
supply unit
liquid additive
application
unit
tow
Prior art date
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Application number
EP14897870.3A
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German (de)
English (en)
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EP3170411A4 (fr
EP3170411A1 (fr
Inventor
Katsuo Kato
Masaharu ASAKURA
Junji Ueno
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Japan Tobacco Inc
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Japan Tobacco Inc
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Application filed by Japan Tobacco Inc filed Critical Japan Tobacco Inc
Priority to PL14897870T priority Critical patent/PL3170411T3/pl
Publication of EP3170411A1 publication Critical patent/EP3170411A1/fr
Publication of EP3170411A4 publication Critical patent/EP3170411A4/fr
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Publication of EP3170411B1 publication Critical patent/EP3170411B1/fr
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    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/02—Manufacture of tobacco smoke filters
    • A24D3/0204—Preliminary operations before the filter rod forming process, e.g. crimping, blooming
    • A24D3/0212—Applying additives to filter materials
    • A24D3/022—Applying additives to filter materials with liquid additives, e.g. application of plasticisers
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/02—Manufacture of tobacco smoke filters
    • A24D3/0229—Filter rod forming processes

Definitions

  • the present invention relates to a manufacturing apparatus and a manufacturing method for a cigarette filter.
  • a filter manufacturing apparatus which manufactures a cigarette filter generally includes a processing unit that feeds tow composed of filter fibers of cellulose acetate or the like from a storage container and shapes the tow into a flat band shape by stretching fibers of the tow or performing opening processing that opens up the gap between fibers in a feed process and a shaping unit that continuously shapes a filter rod by winding wrapping paper around the band-like tow supplied from the processing unit and bonding the wrapping paper to the tow while shaping the tow into a rod shape.
  • a liquid plasticizer such as triacetin
  • a roll transfer method a spray method, or the like.
  • filter fibers of the tow are bound together by the plasticizer. With this binding, the shape of the filter rod can be stably maintained.
  • EP 1106087 A1 discloses a method involving detecting the density of the moving material transverse to its direction of motion and feeding the additive to the material depending on the detected density using control elements driven by density signals for associated areas of material.
  • the density is detected in individual material areas using light, gas, preferably air, electrical or electromagnetic fields passed through the material.
  • filter fibers of tow wind around a roller due to adhesiveness of the high-viscosity liquid stable delivery of the tow along a feed path is difficult.
  • a spray method is applied, the high-viscosity liquid that is atomized using compressed air, gas, or the like is sprayed from a nozzle.
  • the atomization of the high-viscosity liquid needs spraying of a large amount of compressed air has disadvantages. More specifically, filter fibers being delivered may fluctuate greatly in posture or may be unable to maintain a band shape. As a result, stable manufacture of cigarette filters may be difficult.
  • the present invention has been made in view of the above-described problems, and has as its object to provide a manufacturing apparatus and a manufacturing method for a cigarette filter capable of stably manufacturing a cigarette filter even if a liquid additive with high viscosity is supplied to filter fibers in a cigarette filter manufacturing process.
  • a liquid additive is continuously dropped from a supply unit that is arranged at a position above and away from filter fibers fed along a feed path to an upper surface of the filter fibers located below such that the liquid additive is continuous.
  • a manufacturing apparatus having the features of claim 1 is provided. Furthermore, a manufacturing method having the features of claim 9 is provided.
  • the expression “continuously dropping the liquid additive such that the liquid additive is continuous” here refers to a state in which the liquid additive is continuous to the upper surface of the filter fibers without a break while the liquid additive dropped from the supply unit drops down (falls down) toward the upper surface of the filter fibers located below with force of gravity. Note that the term “drop down” refers not only to drop in a vertical direction but also to drop obliquely downward.
  • the liquid additive can be applied in large amounts to the filter fibers while the supply unit is estranged from the filter fibers, i.e., is out of contact with the filter fibers. For this reason, the filter fiber can be inhibited from sticking to the supply unit side due to adhesiveness of the filter fibers, and feeding of the filter fibers along the feed path can be stably performed.
  • the liquid additive is applied to the upper surface of the filter fibers while being continuously dropped such that the liquid additive is continuous. Unlike the above-described spray method, the liquid additive need not be sprinkled in an atomized state. It is thus possible to inhibit the filter fibers fed along the feed path from fluctuating greatly in posture under effects of compressed air or compressed gas and from having difficulty in maintaining a band shape. As a result, a filter manufacturing apparatus capable of stably manufacturing cigarette filters can be provided.
  • the supply unit may include an application nozzle that protrudes from a bottom surface of the supply unit and has an application port for dropping the liquid additive. This allows the liquid additive to be inhibited from, for example, being deposited on the bottom surface of the supply unit to form a liquid pool.
  • the liquid additive can be accurately dropped in a desired direction by dropping the liquid additive from the application port of the application nozzle protruding the bottom surface of the supply unit.
  • a plurality of the application nozzles may be arranged in a line on the bottom surface of the supply unit.
  • the plurality of application nozzles may be arrayed at fixed intervals. This allows further improvement of uniformity of the liquid additive applied to the upper surface of the filter fibers.
  • the plurality of application nozzles may be arrayed in a straight line along a width direction of the feed path. This allows more uniform application of the liquid additive in the width direction of the filter fibers.
  • the application device may further include a holding unit that holds the supply unit, and the holding unit may be adapted to hold the supply unit such that an angle which a direction, in which the plurality of application nozzles are arrayed, forms with the feed path is freely changeable.
  • the application device may further include a shutter unit that receives the liquid additive dropping down from the supply unit and a drive unit that drives the shutter unit and may be adapted such that a posture of the shutter unit is switched by the drive unit between a closed posture that receives the liquid additive dropping down from the supply unit and an open posture that does not receive the liquid additive dropping down from the supply unit.
  • a shaping unit that is provided at a stage subsequent to the application device in the feed path and shapes the filter fibers into a rod shape may be further provided, and the supply unit may be arranged immediately upstream of the shaping unit.
  • the application device may further include a storage unit that stores the liquid additive, connection piping that connects the storage unit and the supply unit, and pressure feed means that is annexed to the storage unit and pressure-feeds the liquid additive stored in the storage unit to the connection piping.
  • the present invention allows provision of a manufacturing apparatus and a manufacturing method for a cigarette filter capable of stably manufacturing a cigarette filter even if a liquid additive with high viscosity is supplied to filter fibers in a cigarette filter manufacturing process.
  • Fig. 1 is a diagram illustrating the schematic configuration of a filter manufacturing apparatus 1 according to a first embodiment.
  • the filter manufacturing apparatus 1 is a manufacturing apparatus for manufacturing a cigarette filter.
  • the filter manufacturing apparatus 1 includes, as an example, a tow processing device 100, a rod shaping device 20 which is arranged at a stage subsequent to the tow processing device 10, and a wrapping device 30 which is arranged at a stage subsequent to the rod shaping device 20.
  • the tow processing device 10 includes a storage container 11 which houses and stores tow 2 composed of filter fibers of, for example, cellulose acetate fiber, and a feed path 3 extends from the storage container 11.
  • the tow 2 can be continuously fed from the storage container 11 along the feed path 3.
  • the tow 2 inside the storage container 11 is stored while filter fibers are put together into a cluster and are compressed.
  • a primary banding jet 12, a guide roller 13, one pair of pretension rollers 14, one pair of blooming rollers 15, a secondary banding jet 16, and one pair of delivery rollers 17 are arranged on the feed path 3 in order from the storage container 11.
  • a stuffer jet 21 of the rod shaping device 20 is arranged in front of the one pair of delivery rollers 17 (on the downstream side in a feed direction of the tow 2 in the feed path 3).
  • a spray nozzle 18 which sprays triacetin as an example of a plasticizer over the tow 2 is provided between the secondary banding jet 16 and the one pair of delivery rollers 17 in the feed path 3.
  • a supply unit 41 of a liquid additive application device 40 is arranged between the one pair of delivery rollers 17 and the stuffer jet 21.
  • the liquid additive application device 40 is a device for applying a liquid additive with high viscosity to the tow 2.
  • the tow 2 is continuously fed from the storage container 11 along the feed path 3.
  • the primary banding jet 13 and the secondary banding jet 16 spout compressed air to the downstream side in the feed path 3, i.e., forward in the feed direction of the tow 2.
  • compressed air spouted from the primary banding jet 13 opens up the gap between filter fibers of the tow 2 (performs opening) and appropriately stretches curls (crimps) of the tow 2.
  • the pretension rollers 14 applies predetermined tension to the tow 2 in cooperation with the one pair of blooming rollers 15 to further stretch the curls of the tow 2.
  • the pretension rollers 14 and the blooming rollers 15 are different in peripheral velocity, and the difference in peripheral velocity applies tension to the tow 2 and stretches the tow 2.
  • the blooming rollers 15 send the tow 2, in which the gap between fibers is opened up, to the secondary banding jet 16.
  • the secondary banding jet 16 spouts compressed air toward the bundle of tow 2 to further open up the gap between fibers.
  • the bundle of tow 2 spreads in a width direction of the feed path 3, and the tow 2 is formed in a flat band shape.
  • atomized triacetin is sprinkled from the spray nozzle 18 in a spray addition unit (not illustrated) which is installed in the feed path 3 over the band-like tow 2.
  • the spray nozzle 18 sprays, through a spray hole (not illustrated), liquid triacetin in an atomized state using compressed air, gas, or the like.
  • the band-like tow 2 with triacetin sprinkled over a surface by the spray nozzle 18 then passes between the one pair of delivery rollers 17.
  • liquid triacetin may be applied to the tow 2 by the one pair of delivery rollers 17.
  • liquid triacetin may be transferred in advance onto the one pair of delivery rollers 17, and the triacetin may be applied from the delivery rollers 17 to the tow 2 at the time of delivering the band-like tow 2 by the one pair of delivery rollers 17.
  • Adhesiveness is imparted to the band-like tow 2 with added triacetin due to the effect of triacetin of causing filter fibers to dissolve.
  • a plurality of points of coupling by adhesive power are formed between adjacent filter fibers.
  • the delivery rollers 17 deliver the tow 2 toward the stuffer jet 21 of the rod shaping device 20.
  • the liquid additive application device 40 applies a thickener solution as an example of a liquid additive to an upper surface of the tow 2. Note that the details of the liquid additive application device 40 will be described later.
  • the rod shaping device 20 includes the stuffer jet 21 that sends the tow 2 toward a tongue 22 together with air, the tongue 22 that shapes the tow 2 into a rod shape, a convergence guide (trumpet guide) 23 which is provided at a position between the stuffer jet 21 and the tongue 22, and the like.
  • the convergence guide 23 is approximately funnel-shaped, and converges the tow 2 sent from the stuffer jet 21 to some degree while guiding the tow 2 toward the tongue 22.
  • the tongue 22 has a tapered shape as a whole, further compresses the tow 2 sent from the convergence guide 23, and shapes the tow 2 into a bar-like rod member.
  • the wrapping device 30 is arranged at a stage subsequent to the rod shaping device 20, and the tow 2 shaped into a rod shape is supplied from the rod shaping device 20.
  • wrapping paper is bonded to the tow 2 shaped as a rod member to obtain a filter rod FR.
  • a cutter 31 is provided side by side with the wrapping device 30.
  • a continuum of filter rods FR continuously delivered from the wrapping device 30 is cut by the cutter 31 to obtain the filter rod FR of predetermined length.
  • Fig. 2 is a diagram illustrating the schematic configuration of the liquid additive application device 40 according to the first embodiment.
  • the liquid additive application device 40 includes a storage hopper 42 which stores a thickener solution, the supply unit 41 that is supplied with the thickener solution stored in the storage hopper 42 and supplies the thickener solution to the upper surface of the band-like tow 2 conveyed along the feed path 3, connection piping 43 which connects the storage hopper 42 and the supply unit 41, an on-off valve 44 which is installed at the connection piping 43, a pressure pump 45 which is annexed to a connection unit between the storage hopper 42 and the connection piping 43, a shutter unit 46, and the like. Note that the on-off valve 44 and the pressure pump 45 are not illustrated in Fig. 1 .
  • the storage hopper 42 corresponds to a storage unit according to the present invention
  • the pressure pump 45 corresponds to pressure feed means according to the present invention.
  • the thickener solution stored in the storage hopper 42 is, for example, a solution containing propylene glycol, glycerin, and a thickener.
  • the containment of propylene glycol by the thickener solution allows selective removal of a predetermined constituent contained in mainstream smoke of a cigarette, such as phenol, at the time of smoking. Limonene as one of aroma constituents passes through a filter without being removed.
  • a commercialized product can be used as propylene glycol.
  • the containment of glycerin by the thickener solution allows propylene glycol contained in the thickener solution to be prevented from volatilizing and dissipating during reposition of a cigarette.
  • a commercialized product can be used as glycerin.
  • the containment of the thickener by the thickener solution allows the thickener solution to be prevented from moving and leaking out from a filter and satisfactory preservation of the appearance of a cigarette.
  • the type of the thickener solution is not limited to the above-described example.
  • the viscosity of the thickener solution is not particularly limited.
  • the viscosity is preferably not less than 2500 cP (centipoise), more preferably not less than 3500 cP.
  • the thickener solution may be not more than 10000 cP.
  • the type of the thickener is not particularly limited.
  • the thickener can include xanthan gum, gellan gum, psyllium seed gum, pectin, carboxymethylcellulose, hydroxypropylcellulose, polyvinyl alcohol, agarose, pullulan, alginic acid, polyacrylic acid, and an alkali metal salt or alkali-earth metal salt thereof.
  • Reference numeral 50 illustrated in Fig. 2 denotes a control unit of the filter manufacturing apparatus 1, and the control unit is a computer which controls the operation of the entire filter manufacturing apparatus 1.
  • the on-off valve 44 is, for example, a motor-operated valve, an electromagnetic valve, or the like. Note that the liquid additive application device 40 may not include the on-off valve 44.
  • the pressure pump 45 may be, for example, a quantitative transfer pump, such as a Moineau pump. When the pressure pump 45 operates, the pressure pump 45 pressure-feeds the thickener solution stored in the storage hopper 42 to the connection piping 43, which results in supply of the thickener solution to the supply unit 41.
  • the shutter unit 46 is a member having a so-called trough shape, and the posture of the shutter unit 46 can be changed between an open posture and a closed posture by a shutter driving unit 46A which is provided side by side with the shutter unit 46.
  • Reference numeral 47 denotes a holding unit for holding the supply unit 41.
  • the control unit 50 of the filter manufacturing apparatus 1 is connected to a drive unit (not illustrated) of the delivery rollers 17 of the tow processing device 10, the on-off valve 44, the pressure pump 45, and the shutter driving unit 46A of the liquid additive application device 40, and the like via electric wiring.
  • the control unit 50 controls the operation of the pieces of equipment by outputting control signals to the pieces of equipment.
  • Reference numeral 48 illustrated in Fig. 2 denotes an application nozzle.
  • the supply unit 41 has a plurality of application nozzles 48.
  • the application nozzle 48 is a tubular nozzle which protrudes downward from a bottom surface 41A of the supply unit 41, and each application nozzle 48 has an application port for dropping the thickener solution supplied to the supply unit 41 to the outside.
  • the supply unit 41 has the shape of an approximate rectangular parallelepiped.
  • the plurality of application nozzles 48 are arranged in a straight line in a width direction of the bottom surface 41A.
  • Fig. 3 partially illustrates the bottom surface 41A of the supply unit 41 according to the first embodiment.
  • a plurality of application nozzles 48 are arranged in a straight line along the width direction of the supply unit 41 and form a comb-shaped multiple nozzle.
  • the application nozzles 48 are arranged at fixed intervals along a width direction of the supply unit 41.
  • Reference character 48A denotes an application port as an opening unit for discharging the thickener solution to the outside.
  • the inside and the outside of the supply unit 41 communicate with each other via the application port 48A. Note that, in the present embodiment, axial directions of tubular bodies forming the application nozzles 48 all coincide with one another and are perpendicular to the bottom surface 41A.
  • the supply unit 41 of the liquid additive application device 40 is arranged above the tow 2 (the feed path 3). Since the supply unit 41 of the liquid additive application device 40 is arranged between the delivery rollers 16 and the stuffer jet 21, the supply unit 41 is arranged above the tow 2 shaped into a band shape.
  • the application port 48A of the application nozzle 48 is arranged so as to face the upper surface of the tow 2 in a state away from (out of contact with) the upper surface of the tow 2.
  • Fig. 4 schematically illustrates the relationship between an arrayal direction of the application nozzles 48 provided on the supply unit 41 according to the first embodiment and a movement direction of the feed path 3.
  • the application nozzles 48 are arrayed along a direction orthogonal to the movement direction of the feed path 3. That is, the plurality of application nozzles 48 are arrayed along the width direction of the feed path 3, i.e., a width direction of the tow 2 shaped into a band shape.
  • the operation of the liquid additive application device 40 when the thickener solution is applied to the band-like tow 2 will be described. Since the tow 2 is constantly fed along the feed path 3 while the filter manufacturing apparatus 1 is in operation, the thickener solution is continuously applied to the tow 2 by the liquid additive application device 40.
  • the control unit 50 outputs a driving signal to a drive unit of the one pair of delivery rollers 16 at the start of operation of the filter manufacturing apparatus 1. With the driving signal, conveyance of the tow 2 along the feed path 3 is started.
  • the control unit 50 also sends an open signal to the shutter driving unit 46A of the shutter mechanism 46. With the open signal, the shutter driving unit 46A drives the shutter unit 46, and the posture of the shutter unit 46 is switched from the closed posture to the open posture.
  • Fig. 5A is a view for explaining the closed posture of the shutter unit 46 according to the first embodiment.
  • Fig. 5B is a view for explaining the open posture of the shutter unit 46.
  • the shutter driving unit 45A can switch the posture (position) of the shutter unit 46 between the closed posture (closed position) illustrated in Fig. 5A and the open posture (open position) illustrated in Fig. 5B .
  • the shutter unit 46 is arranged below the application port 48A so as to receive the thickener solution discharged from the application port 48A in the application nozzle 48 ( Fig. 5A ).
  • the shutter unit 46 when the shutter unit 46 is in the open posture, the shutter unit 46 is in a state after the shutter unit 46 is moved rotationally by approximately 90° from the open position. The shutter unit 46 retracts from below the application port 48A in the application nozzle 48 ( Fig. 5B ).
  • the control unit 50 outputs control signals to the on-off valve 44 and the pressure pump 45 of the liquid additive application device 40 to open the on-off valve 44 and bring the pressure pump 45 into operation. With this operation, pressure feeding of the thickener solution stored in the storage hopper 42 to the supply unit 41 is started.
  • the filter manufacturing apparatus 1 may be provided with a rotary encoder (not illustrated) which detects the rotational speed of the delivery rollers 17 and that the control unit 50 may acquire the rotational speed of the delivery rollers 17 on the basis of an output signal from the rotary encoder.
  • control unit 50 may be triggered by sensing, on the basis of the rotational speed of the delivery rollers 17, that the feed path 3 is fed by the delivery rollers 17 to control the on-off valve 44, the pressure pump 45, and the shutter driving unit 46A of the liquid additive application device 40 in the above-described manner.
  • the thickener solution supplied to the supply unit 41 through the connection piping 43 is distributed into tubular bodies of the application nozzles 48 and is then discharged to the outside through the application ports 48A. Since the thickener solution contains a thickener, the thickener solution can be said to be a high-viscosity liquid additive much higher in viscosity than a plasticizer and the like.
  • the thickener solution is applied to the tow 2 by continuously dropping the thickener solution from the supply unit 41 that is arranged at a position above the band-like tow 2 (filter fibers) fed along the feed path 3 and away from the tow 2 to the upper surface of the tow 2 located below such that the thickener solution is continuous.
  • the thickener solution is continuous
  • the distance between the upper surface of the tow 2 and the application port 48A in the application nozzle 48 is drawn to be larger in Fig. 6 for ease of comprehension of an aspect of the thickener solution dropped from the application nozzle 48.
  • the thickener solution when the thickener solution drops down from the application port 48A of the application nozzle 48, the thickener solution may fall perpendicularly downward or may fall down obliquely.
  • An aspect in which the thickener solution falling down is stretched due to adhesiveness of the thickener solution applied to the upper surface of the tow 2 conveyed along the feed path 3 to drop obliquely downward from the application port 48A of the application nozzle 48 can also be conceived.
  • the liquid additive application device 40 can apply a large amount of thickener solution to the tow 2 while the supply unit 41 (the application port 48A of the application nozzle 48) is estranged from the tow 2, i.e., is out of contact with the tow 2 even when a liquid additive with high viscosity like the thickener solution is to be supplied to the tow 2. For this reason, the problem of filter fibers of the tow 2 sticking to the supply unit 41 side due to the adhesiveness of the thickener solution does not occur. Thus, delivery of the tow 2 along the feed path 3 can be stably performed.
  • the method for applying a thickener solution according to the present embodiment applies a thickener solution to the upper surface of the tow 2 while continuously dropping a thickener solution such that the thickener solution is continuous, the thickener solution need not be sprinkled in an atomized state, unlike the above-described spray method. It is thus possible to inhibit the tow 2 fed along the feed path 3 from fluctuating greatly in posture under effects of compressed air or compressed gas and from having difficulty in maintaining a band shape. As a result, cigarette filters can be stably manufactured using the filter manufacturing apparatus 1.
  • the application nozzle 48 protrudes downward from the bottom surface 41A of the supply unit 41. For this reason, even if the viscosity of the thickener solution is high, parts of the thickener solution discharged from the adjacent application ports 48A can be inhibited from sticking together to form a liquid pool on the bottom surface 41A. It is thus possible to stably apply the thickener solution to the upper surface of the tow 2. Additionally, the thickener solution can be accurately dropped in a desired direction by dropping the thickener solution from the application port 48A of the application nozzle 48 protruding from the bottom surface 41A of the supply unit 41.
  • the thickness of a distal end (a dimension in a radial direction of a distal end surface) of the application nozzle 48 is preferably small.
  • the application nozzles 48 on the supply unit 41 of the liquid additive application device 40 are arrayed along the width direction of the feed path 3, i.e., the width direction of the tow 2 shaped into a band shape.
  • the thickener solution can be uniformly applied to the upper surface of the tow 2 without atomizing the thickener solution, unlike the spray method.
  • the plurality of application nozzles 48 are arranged at fixed intervals on the bottom surface 41A of the supply unit 41.
  • the thickener solution can be continuously applied at fixed intervals in the width direction of the tow 2 along a longitudinal direction (feed direction 3) of the tow 2.
  • the application allows further improvement of uniformity of the thickener solution applied to the upper surface of the tow 2 in the width direction of the tow 2.
  • the distance (hereinafter referred to as a "nozzle arrayal width") between ones at two ends (hereinafter referred to as end nozzles) of the plurality of application nozzles 48 arrayed in a straight line on the supply unit 41 is adjusted in accordance with an opening width of the tow 2 such that the distance is not excessively smaller or larger than the opening width of the tow 2 and that the end nozzles are aligned near ends in the width direction of the tow 2, as illustrated in Fig. 4 in the present embodiment.
  • the nozzle arrayal width is not excessively smaller than the opening width of the tow 2, and a situation in which the thickener solution is not applied to end regions in the width direction of the tow 2 can be avoided. Since the nozzle arrayal width is not excessively larger than the opening width of the tow 2, the thickener solution discharged from the application nozzle 48 can be inhibited from being wasted without being applied to the tow 2.
  • the interval between the plurality of application nozzles 48 provided on the supply unit 41 (hereinafter referred to as a "nozzle interval") is preferably small. Note that if the nozzle interval is too small, parts of the thickener solution discharged from the adjacent application nozzles 48 may stick together to deteriorate the uniformity of the thickener solution applied to the upper surface of the tow 2.
  • the nozzle interval for the application nozzles 48 may be made as small as possible within a range which keeps parts of the thickener solution discharged from the adjacent application nozzles 48 from sticking together. Note that the shape, the dimensions, and the like of the application nozzle 48 are not particularly limited.
  • the nozzle interval for the application nozzles 48 may be selected and determined from the range of about 1 to 20 mm.
  • the bore of the application port 48A in the application nozzle 48 may be selected and determined from the range of, for example, about 0.1 to 2 mm.
  • the length of the connection piping 43 of the liquid additive application device 40 is preferably as short as possible. Reduction of the length of the connection piping 43 has the advantage in that the supplied amount of thickener solution to be sent to the supply unit 41 from when a stop signal is issued from the control unit 50 to the pressure pump 45 to when the pressure pump 45 is depressurized can be made smaller.
  • the liquid additive application device 40 is structured such that the pressure pump 45 is annexed to the storage hopper 42 and such that the thickener solution stored in the storage hopper 42 is pressure-fed to the connection piping 43.
  • This structure allows stable supply of the thickener solution with high viscosity to the supply unit 41. That is, for example, if a pressure pump is installed halfway through the connection piping 43, a zone between the storage hopper 42 and the pressure pump in the connection piping 43 may be clogged or the thickener solution may not flow from the storage hopper 42 into the zone due to low fluidity of the thickener solution. This may make it difficult to stably supply the thickener solution to the supply unit 41.
  • a pump pressure of the pressure pump 45 can be applied across the connection piping 43 by not providing the pressure pump 45 halfway through the connection piping 43 but annexing the pressure pump 45 to the storage hopper 42. For this reason, even if the viscosity of the thickener solution is high, it is possible to inhibit the zone between the storage hopper 42 and the pressure pump in the connection piping 43 from being clogged and the zone from stopping being refilled with the thickener solution. As a result, supply of the thickener solution from the storage hopper 42 to the supply unit 41 can be stably performed. Note that a pressure pump may be installed halfway through the connection piping 43.
  • the supply unit 41 of the liquid additive application device 40 is arranged immediately upstream of the stuffer jet 21 and the convergence guide 23 of the rod shaping device 20.
  • the arrangement of the supply unit 41 on the downstream side of the delivery rollers 16 of the tow processing device 10 in the feed path 3 allows the thickener solution applied to the tow 2 to be inhibited from being deposited on a roller member.
  • the supply unit 41 is arranged immediately upstream of the stuffer jet 21 and the convergence guide 23, and the tow 2 can be passed to the rod shaping device 20 immediately after application of the thickener solution.
  • downward flexure of the tow 2 arising from the weight of the thickener solution can be reduced, and delivery of the tow 2 along the feed path 3 can be stably performed.
  • the vertical clearance between the application port 48A of the application nozzle 48 and the tow 2 is preferably small. This is because if the vertical clearance between the application nozzle 48 and the tow 2 is too large, a part of the thickener solution discharged from the application port 48A is likely to stick to and be integrated with a part of the thickener solution discharged from the adjacent application port 48A while falling down. Note that if the vertical clearance between the application port 48A of the application nozzle 48 and the tow 2 is too small, when the tow 2 delivered from the delivery rollers 16 flutters up and down, the application nozzle 48 may come into contact with the upper surface of the tow 2.
  • the vertical distance between the application port 48A of the application nozzle 48 and the tow 2 is preferably set to be small within a range which keeps the application nozzle 48 from coming into contact with the upper surface even if the tow 2 fed along the feed path 3 flutters to some degree.
  • a holddown guide for holding down flutters of the tow 2 may be installed above the tow 2. That is, the upper surface of the tow 2 can be inhibited from coming into contact with the application nozzle 48 by holding down the upper surface of the tow 2 with the holddown guide when the tow 2 fed along the feed path 3 flutters up and down.
  • the holddown guide is preferably provided near a position where the application nozzle 48 is arranged in the feed path 3.
  • the holddown guide is particularly preferably installed immediately upstream of the position where the application nozzle 48 is arranged.
  • the control unit 50 causes the liquid additive application device 40 to stop applying the thickener solution to the tow 2, for example, when the filter manufacturing apparatus 1 is to be stopped. That is, the control unit 50 outputs control signals to the on-off valve 44 and the pressure pump 45 of the liquid additive application device 40 to close the on-off valve 44 and stop the pressure pump 45.
  • the control unit 50 also sends a closed signal to the shutter driving unit 46A of the shutter unit 46. With the closed signal, the shutter driving unit 46A drives the shutter unit 46 to switch the posture of the shutter unit 46 from the open posture to the closed posture. The shutter unit 46 moves below the application port 48A so as to receive the thickener solution discharged from the application port 48A in the application nozzle 48.
  • the thickener solution can be inhibited from continuing to drop from the application port 48A through inertia after the pressure pump 45 is stopped.
  • the control unit 50 may be triggered by sensing, on the basis of a signal from the rotary encoder, that the rotational speed of the delivery rollers 17 is not more than a predetermined rotational speed to close the on-off valve 44 and stop the pressure pump 45 and switch the posture of the shutter unit 46 from the open posture to the closed posture.
  • Fig. 8 is a diagram for explaining the tow processing device 10 according to a first modification.
  • the tow processing device 10 according to the first modification includes a first support guide 18A and a second support guide 18B for inhibiting flexure of the tow 2 fed in a movement direction along the feed path 3.
  • the first support guide 18A is arranged between the supply unit 41 of the liquid additive application device 40 and the stuffer jet 21 of the rod shaping device 20 on the feed path 3. More specifically, the first support guide 18A is arranged immediately downstream of the supply unit 41.
  • the second support guide 18B is arranged between the delivery rollers 16 and the supply unit 41 on the feed path 3. More specifically, the second support guide 18B is arranged immediately upstream of the supply unit 41.
  • the first support guide 18A and the second support guide 18B each have a support surface which is arranged so as to face a lower surface of the tow 2 and inhibit flexure of the tow 2 by supporting the tow 2 with the support surfaces.
  • the first support guide 18A supports the tow 2 weighted by application of a thickener solution.
  • the first support guide 18A can reduce downward flexure of the tow 2 arising from the weight of the thickener solution, which allows stable supply of the tow 2 to the stuffer jet 21 of the rod shaping device 20.
  • the second support guide 18B supports the lower surface of the tow 2 immediately prior to application of the thickener solution from below and can inhibit the distance from the application port 48A in the application nozzle 48 to the tow 2 from deviating greatly from a set dimension.
  • Figs. 9 are views for explaining a liquid additive application device according to a second modification.
  • the holding unit 47 holds the supply unit 41 such that an angle (hereinafter referred to as a "nozzle arrayal angle") which a direction (hereinafter referred to as a "nozzle arrayal direction”), in which a plurality of application nozzles 48 in the supply unit 41 are arrayed, forms with a movement direction of the feed path 3 is freely changeable.
  • the nozzle arrayal direction is orthogonal to the movement direction of the feed path 3 in Fig. 8(a) while the nozzle arrayal direction is inclined with respect to the movement direction of the feed path 3 in Fig. 8(b) .
  • the angle which the nozzle arrayal direction forms with the movement direction of the feed path 3 can be changed in accordance with the opening width of the tow 2.
  • an opening width W2 of the tow 2 illustrated in Fig. 8(b) is smaller than an opening width W1 of the tow 2 illustrated in Fig. 8(a) .
  • the supply units 41 illustrated in Figs. 9(a) and 9(b) are common (shared or identical) members and are made different only in nozzle arrayal angle by the holding unit 47.
  • the opening width of the tow 2 can be changed depending on the type of the tow 2 and various conditions of the tow processing device 10. According to the present modification, the clearance between end nozzles along a width direction of the feed path 3 can be changed to an appropriate distance in accordance with the opening width of the tow 2. As a result, even if the opening width of the tow 2 is changed with, for example, specification changes regarding cigarette filter manufacture or the like, the thickener solution can be applied to the tow 2 using the common supply unit 41. That is, it is thus possible to inhibit the thickener solution from having difficulty in being applied to an end region in a width direction of the tow 2 and inhibit the thickener solution discharged from the application nozzle 48 from being wasted without being applied to the tow 2. Note that although the supply unit 41 is provided at one site in the liquid additive application device 40 according to the present embodiment, the supply units 41 may be arranged at a plurality of positions along the feed path 3 in a multistage configuration.
  • Fig. 10 is a bottom view of the supply unit 41 in the liquid additive application device 40 according to a third modification.
  • the application nozzle 48 described so far may not be provided on the lower surface 41A of the supply unit 41.
  • a slit-like opening unit through which a thickener solution is dropped to the outside, is formed as an application port 41B in the lower surface 41A of the supply unit 41.
  • the application port 41B extends widely along a width direction of the bottom surface 41A.
  • Fig. 11 is a view for explaining an aspect in which a thickener solution is applied to an upper surface of the tow 2 by the supply unit 41 according to the third modification.
  • a width dimension of the application port 41B in the supply unit 41 corresponds roughly to the opening width when the band-like tow 2 arrives at the supply unit 41 and is set to a dimension slightly smaller than the opening width.
  • a thickener solution is dropped down (made to fall down) from a position above the tow 2 and away from the tow 2 by a predetermined dimension to the upper surface of the band-like tow 2 fed along the feed path 3 such that the thickener solution is continuous, and the thickener solution is applied while being continuously dropped to the upper surface of the tow 2.
  • the flat application nozzle 48 may be provided to protrude around a slit-like opening unit formed in the lower surface 41A of the supply unit 41, as illustrated in Fig. 12 .
  • a structure in which a thickener solution is dropped from the application port 48A of the application nozzle 48 may be adopted.
  • Fig. 13 is a diagram illustrating the liquid additive application device 40 according to a fourth modification.
  • a pressure pump 45A pressure feed means which pressurizes the entire storage chamber of the storage hopper 42 may be annexed to the storage hopper 42.
  • the on-off valve 44 is preferably installed at the connection piping 42.

Claims (16)

  1. Appareil de fabrication (1) pour un filtre de cigarette, comprenant :
    un mécanisme d'acheminement qui achemine en continu une bande de fibres de filtre le long d'un trajet d'acheminement prédéterminé (3) ;
    un dispositif d'application (40) qui applique un additif liquide sur les fibres de filtre acheminées le long du trajet d'acheminement (3) ; et
    une unité de façonnage qui est fournie à une étape ultérieure au dispositif d'application (40) dans le trajet d'acheminement (3) et façonne les fibres de filtre en une forme de tige,
    dans lequel le dispositif d'application (40) inclut
    une unité d'alimentation (41) qui est agencée au-dessus et à distance des fibres de filtre acheminées le long du trajet d'acheminement (3) et fait tomber en continu l'additif liquide sur une surface supérieure des fibres de filtre située en dessous de sorte que l'additif liquide est continu, et
    l'unité d'alimentation (41) est agencée immédiatement en amont de l'unité de façonnage.
  2. Appareil de fabrication pour le filtre de cigarette selon la revendication 1, dans lequel
    l'unité d'alimentation (41) inclut une buse d'application (48) qui fait saillie depuis une surface inférieure (41A) de l'unité d'alimentation (41) et présente un orifice d'application (48A) pour faire tomber l'additif liquide.
  3. Appareil de fabrication pour le filtre de cigarette selon la revendication 2, dans lequel
    une pluralité des buses d'application (48) sont agencées en ligne sur la surface inférieure (41A) de l'unité d'alimentation (41).
  4. Appareil de fabrication pour le filtre de cigarette selon la revendication 3, dans lequel
    la pluralité de buses d'application (48) sont disposées à intervalles fixes.
  5. Appareil de fabrication pour le filtre de cigarette selon la revendication 3 ou 4, dans lequel
    la pluralité de buses d'application (48) sont disposées en ligne droite le long d'une direction de largeur du trajet d'acheminement (3).
  6. Appareil de fabrication pour le filtre de cigarette selon l'une quelconque des revendications 3 à 5, dans lequel
    le dispositif d'application (40) inclut en outre une unité de maintien (47) qui maintient l'unité d'alimentation (41), et
    l'unité de maintien (47) maintient l'unité d'alimentation (41) de sorte qu'un angle qu'une direction, dans laquelle la pluralité de buses d'application (48) sont disposées, forme avec le trajet d'acheminement (3) puisse être modifié librement.
  7. Appareil de fabrication pour le filtre de cigarette selon l'une quelconque des revendications 1 à 6, dans lequel
    le dispositif d'application (40) inclut en outre une unité d'obturation (46) qui reçoit l'additif liquide tombant depuis l'unité d'alimentation (41) et une unité d'entraînement qui entraîne l'unité d'obturation (46), et
    une position de l'unité d'obturation (46) est modifiée par l'unité d'entraînement entre une position fermée qui reçoit l'additif liquide tombant depuis l'unité d'alimentation (41) et une position ouverte qui ne reçoit pas l'additif liquide tombant depuis l'unité d'alimentation (41).
  8. Appareil de fabrication pour le filtre de cigarette selon l'une quelconque des revendications 1 à 7, dans lequel
    le dispositif d'application (40) inclut en outre
    une unité de stockage qui stocke l'additif liquide,
    un tuyau de raccordement (43) qui raccorde l'unité de stockage et l'unité d'alimentation (41), et
    un moyen d'acheminement sous pression qui est annexé à l'unité de stockage et achemine sous pression l'additif liquide stocké dans l'unité de stockage à la conduite (43).
  9. Procédé de fabrication pour fabriquer un filtre de cigarette pour appliquer un additif liquide à une bande de fibres de filtre qui sont acheminées en continu le long d'un trajet d'acheminement prédéterminé (3), comprenant l'étape consistant à
    faire tomber en continu l'additif liquide depuis une unité d'alimentation (41) qui est agencée au niveau d'une position au-dessus et à distance des fibres de filtre acheminées le long du trajet d'acheminement (3) sur une surface supérieure des fibres de filtre située en dessous de sorte que l'additif liquide soit continu,
    dans lequel une unité de façonnage qui façonne les fibres de filtre en une forme de tige est fournie à une étape ultérieure à l'unité d'alimentation (41) dans le trajet d'acheminement (3), et
    l'additif liquide est fait tomber sur la surface supérieure des fibres de filtre immédiatement avant que les fibres de filtre acheminées le long du trajet d'acheminement (3) n'arrivent au niveau de l'unité de façonnage.
  10. Procédé de fabrication pour le filtre de cigarette selon la revendication 9, dans lequel
    l'unité d'alimentation (41) inclut une buse d'application (48) qui fait saillie depuis une surface inférieure (41A) de l'unité d'alimentation (41) et présente un orifice d'application (48A) pour faire tomber l'additif liquide.
  11. Procédé de fabrication pour le filtre de cigarette selon la revendication 10, dans lequel
    une pluralité des buses d'application (48) sont agencées en ligne sur la surface inférieure (41A) de l'unité d'alimentation (41).
  12. Procédé de fabrication pour le filtre de cigarette selon la revendication 11, dans lequel
    la pluralité de buses d'application (48) sont disposées à intervalles fixes.
  13. Procédé de fabrication pour le filtre de cigarette selon la revendication 11 ou 12, dans lequel
    la pluralité de buses d'application (48) sont disposées en ligne droite le long d'une direction de largeur du trajet d'acheminement (3).
  14. Procédé de fabrication pour le filtre de cigarette selon l'une quelconque des revendications 11 à 13, dans lequel
    l'unité d'alimentation (41) est maintenue de sorte qu'une direction, dans laquelle la pluralité de buses d'application (48) sont disposées, forme avec le trajet d'acheminement (3) puisse être modifiée librement.
  15. Procédé de fabrication pour le filtre de cigarette selon l'une quelconque des revendications 9 à 14, dans lequel
    une commutation entre l'application de l'additif liquide sur les fibres de filtre et la suspension de l'application est effectuée en modifiant une position d'une unité d'obturation (46) qui reçoit l'additif liquide tombant depuis l'unité d'alimentation (41) entre une position fermée qui reçoit l'additif liquide tombant depuis l'unité d'alimentation (41) et une position ouverte qui ne reçoit pas l'additif liquide tombant depuis l'unité d'alimentation (41).
  16. Procédé de fabrication pour le filtre de cigarette selon l'une quelconque des revendications 9 à 15, dans lequel
    l'additif liquide est fourni à l'unité d'alimentation (41) par l'intermédiaire d'une conduite (43) qui est raccordé à une unité de stockage qui stocke l'additif liquide, et
    un moyen d'acheminement sous pression est annexé à l'unité de stockage, et l'additif liquide stocké dans l'unité de stockage est fourni à l'unité d'alimentation (41) en acheminant sous pression l'additif liquide à la conduite (43) par le moyen d'acheminement sous pression.
EP14897870.3A 2014-07-18 2014-07-18 Appareil et procédé de production d'un filtre de cigarette Active EP3170411B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL14897870T PL3170411T3 (pl) 2014-07-18 2014-07-18 Urządzenie i sposób wytwarzania filtra papierosowego

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2014/069195 WO2016009555A1 (fr) 2014-07-18 2014-07-18 Appareil et procédé de production d'un filtre de cigarette

Publications (3)

Publication Number Publication Date
EP3170411A1 EP3170411A1 (fr) 2017-05-24
EP3170411A4 EP3170411A4 (fr) 2018-03-14
EP3170411B1 true EP3170411B1 (fr) 2020-10-21

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EP (1) EP3170411B1 (fr)
JP (1) JP6198951B2 (fr)
KR (1) KR101933812B1 (fr)
CN (1) CN106572697B (fr)
EA (1) EA033296B1 (fr)
MY (1) MY182844A (fr)
PL (1) PL3170411T3 (fr)
UA (1) UA116855C2 (fr)
WO (1) WO2016009555A1 (fr)

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Publication number Priority date Publication date Assignee Title
JP6754837B2 (ja) * 2016-07-26 2020-09-16 日本たばこ産業株式会社 フィルタ製造装置及びフィルタ製造方法
JP2020036534A (ja) * 2016-11-30 2020-03-12 日本たばこ産業株式会社 フィルター付シガレット
KR102445429B1 (ko) * 2019-11-20 2022-09-20 주식회사 케이티앤지 에어로졸 생성 로드를 제조하는 방법 및 장치와, 상기 방법 및 장치에 의해 제조되는 에어로졸 생성 로드를 포함하는 에어로졸 생성 물품
KR20230055456A (ko) * 2021-10-18 2023-04-26 주식회사 케이티앤지 담배용 필터의 제조방법
JPWO2023105707A1 (fr) * 2021-12-09 2023-06-15
DE102022116185A1 (de) * 2022-06-29 2024-01-04 Körber Technologies Gmbh Maschine und Verfahren der Tabak verarbeitenden Industrie zum Herstellen eines Strangs oder Papierfilters sowie Verwendung der Maschine

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JPH0280Y2 (fr) * 1987-02-02 1990-01-05
JPH0739798Y2 (ja) * 1989-07-01 1995-09-13 昌芳 松本 盤状物用手提げ袋
JPH07106333B2 (ja) * 1989-11-28 1995-11-15 松下電器産業株式会社 塗布装置
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JPH06327455A (ja) 1993-05-26 1994-11-29 Japan Tobacco Inc 網状ガイドパイプを有するタバコフィルタ製造装置
JP3017045B2 (ja) * 1995-05-24 2000-03-06 日本ニユクリア・フユエル株式会社 原子燃料処理・検査設備
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JP4681126B2 (ja) 2000-12-13 2011-05-11 富士機械製造株式会社 高粘性流体塗布装置
JP3982213B2 (ja) * 2001-07-16 2007-09-26 株式会社大真空 光学素子の貼り合わせ装置及び貼り合わせ方法
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JPWO2016009555A1 (ja) 2017-04-27
MY182844A (en) 2021-02-05
JP6198951B2 (ja) 2017-09-20
EP3170411A4 (fr) 2018-03-14
CN106572697B (zh) 2020-04-21
CN106572697A (zh) 2017-04-19
PL3170411T3 (pl) 2021-01-25
KR20170024038A (ko) 2017-03-06
EA033296B1 (ru) 2019-09-30
WO2016009555A1 (fr) 2016-01-21
EP3170411A1 (fr) 2017-05-24
EA201790222A1 (ru) 2017-05-31
KR101933812B1 (ko) 2018-12-28
UA116855C2 (uk) 2018-05-10

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