WO2012029117A1 - Machine à fabriquer des filtres à cigarette et procédé de fabrication de ceux-ci - Google Patents

Machine à fabriquer des filtres à cigarette et procédé de fabrication de ceux-ci Download PDF

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Publication number
WO2012029117A1
WO2012029117A1 PCT/JP2010/064763 JP2010064763W WO2012029117A1 WO 2012029117 A1 WO2012029117 A1 WO 2012029117A1 JP 2010064763 W JP2010064763 W JP 2010064763W WO 2012029117 A1 WO2012029117 A1 WO 2012029117A1
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WO
WIPO (PCT)
Prior art keywords
heating
filter
roll
corrugated
pair
Prior art date
Application number
PCT/JP2010/064763
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English (en)
Japanese (ja)
Inventor
加藤勝男
中村智史
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日本たばこ産業株式会社
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Application filed by 日本たばこ産業株式会社 filed Critical 日本たばこ産業株式会社
Priority to PCT/JP2010/064763 priority Critical patent/WO2012029117A1/fr
Publication of WO2012029117A1 publication Critical patent/WO2012029117A1/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
    • 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
    • A24D3/025—Final operations, i.e. after the filter rod forming process
    • A24D3/0258—Means for making grooves
    • 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
    • A24D3/04—Tobacco smoke filters characterised by their shape or structure
    • A24D3/048—Tobacco smoke filters characterised by their shape or structure containing additives

Definitions

  • the present invention relates to a cigarette filter manufacturing machine and a manufacturing method thereof, and more particularly to a manufacturing machine and a manufacturing method capable of improving the productivity while maintaining the quality of the cigarette filter.
  • a corrugated filter is known as a cigarette filter (Patent Documents 1 and 2).
  • This type of corrugated filter includes a filter material and a corrugated sheath enclosing the filter material, the corrugated sheath having a plurality of longitudinal grooves. These longitudinal grooves extend in the axial direction of the filter material and are arranged at intervals in the circumferential direction of the filter material.
  • a manufacturing machine for manufacturing such a corrugated filter includes a pair of heating rolls, and these heating rolls are disposed so as to sandwich the transfer path between the transfer paths of acetate tow as a filter material.
  • the pair of heating rolls has a plurality of formed teeth that mesh with each other on the outer peripheral surface thereof. These forming teeth extend over the entire circumference of the heating roll and are arranged at intervals in the axial direction of the heating roll, and the forming teeth of the pair of heating rolls cooperate with each other to form a corrugated forming gap.
  • the acetate tow when the acetate tow passes through the forming gap between the pair of heating rolls, the acetate tow receives the forming pressure from the pair of heating rolls, so that the corrugated tape having a plurality of vertical grooves corresponding to the forming gap, that is, The corrugated sheath described above is formed.
  • the corrugated filter manufacturing machine described above uses an induction heating device for heating the heating roll, and this induction heating device is inserted into each heating roll from the side thereof to heat the heating roll from the inside. To do.
  • the heating roll has a roll shaft that is rotatably supported by the bearing base, the induction heating device is supported by the roll shaft between the heating roll and the bearing base, and the above-described forming pressure is It is added to one heating roll via a bearing stand and a roll shaft. Therefore, the working point of the forming pressure applied to the roll shaft and the support point of the heating roll on the roll shaft are shifted from each other in the axial direction of the roll shaft. It causes bending. Such bending of the roll shaft makes it impossible to maintain the above-described forming gap with high accuracy, so that the vertical grooves cannot be formed accurately in the acetate tow, and the quality of the corrugated sheath is deteriorated. As a result, it is difficult to improve the production speed of the cigarette filter, that is, the productivity, while maintaining the quality of the corrugated sheath, that is, the cigarette filter.
  • An object of the present invention is to provide a cigarette filter manufacturing machine and a method for manufacturing the cigarette filter that improve the productivity while maintaining the quality of the cigarette filter when manufacturing the cigarette filter.
  • a cigarette filter manufacturing machine is disposed in a first transfer path for transferring a first tow material as a cigarette filter material toward the end, and a first transfer path, A molding device for passing the first tow material, and when the first tow material passes, the first tow material is converged to form a filter core, and a second tool toward the end of the first transfer path.
  • the tow material is transferred, and in this transfer process, a second transfer path for forming a tape-shaped packaging material from the second tow material, and a terminal end of the first transfer path, the filter core from the molding machine, the second transfer A wrapping for receiving a packaging material and a paper web from the path, forming a corrugated rod in which the filter core is wrapped in the packaging material, and forming a filter rod in which the corrugated rod is wrapped in the paper web.
  • a thermoforming section that is disposed in the second transfer path and thermoforms the packaging material to the corrugated tape toward the wrapping section to make the filter rod a corrugated rod, the thermoforming section comprising the second transfer path.
  • a pair of heating rolls having a roll shaft that is disposed between both ends and projecting from both end faces, and ring-shaped corrugating molds provided on the outer peripheral surface of each heating roll, and these corrugating molds cooperate with each other
  • a molding die that allows passage of the packaging material and defines a molding gap for thermoforming a large number of longitudinal grooves in the packaging material, and a corrugated molding die incorporated in the heating roll.
  • the pressing device includes a pair of air cylinders, and these air cylinders can press one heating roll via bearing devices on both sides of the one heating roll.
  • each of the pair of heating rolls is supported at both ends by a bearing device at both ends of the roll shaft, while the pressing device, that is, the pair of air cylinders, A uniform forming pressure is applied to the packaging material passing through the forming gap along the width of the forming gap by pressing the one heating roll toward the other heating roll via the bearing devices on both sides of the one heating roll. . Therefore, even if the molding pressure for the packaging material is increased, the axis of the heating roll does not bend, and the molding gap between the molding dies is maintained with high accuracy. As a result, the manufacturing machine can increase the production speed of the corrugated tape, that is, improve the productivity while maintaining the quality of the corrugated tape.
  • the mold is positioned at the center between the bearing devices.
  • the heating roll mold is positioned in the same vertical plane passing through the center between the bearing devices. Therefore, even if the molding pressure for the second tow material is increased, the axis of the heating roll does not bend, and the molding gap between the molding dies is maintained with high accuracy.
  • it is a pair of rest apparatus which is mutually spaced apart along the axial direction of a heating roller, and is located on both sides of a shaping
  • the rest apparatus which rolls and supports each heating roll can be further provided. In this case, since the rest device increases the support point of the corresponding heating roll, the load applied to the roll shaft is reduced and the bending of the roll shaft is surely prevented. As a result, the roll axis parallelism in the heating roll is maintained with high accuracy.
  • the heating source can include an induction coil for heating the outer peripheral wall of the heating roll and a heat pipe structure using the outer peripheral wall.
  • the outer peripheral portion of the heating roll has a heat pipe structure, the outer peripheral wall of the heating roll generates heat uniformly.
  • the mold receives heat from the outer peripheral wall of the heating roll and is quickly heated.
  • the manufacturing machine may further include a preheating device that preheats the second tow material upstream of the thermoforming section.
  • the manufacturing machine further includes a coating unit that is disposed upstream of the thermoforming section and applies a plasticizer to the second tow material
  • the preheating device includes a plasticizer to be applied to the second tow material.
  • a preheater heater can be included.
  • the heating roll that is, in a state where the heating temperature of the mold is suppressed, that is, the mold
  • the second tow material can be heated at a high temperature in a state in which the second tow material is prevented from welding.
  • the manufacturing method of a cigarette filter includes a pre-process in which the first tow material is converged and formed into a filter core in the transfer process of the first tow material as a cigarette filter material, and the filter core is formed from the second tow material.
  • a post-process for forming a filter rod by further wrapping the filter element with a paper web while forming the filter element by wrapping with a wrapping material, and a filter rod formed in the post-process prior to forming the filter element in the post-process A thermoforming process in which the packaging material is thermoformed into a corrugated tape having a number of longitudinal grooves to form a corrugated rod, the thermoforming process being defined between the molds of a pair of heating rolls.
  • the corrugated roll can be rotated at a high speed and the quality of the cigarette filter can be improved.
  • FIG. 1 It is a perspective view which shows the filter cigarette provided with the corrugated filter manufactured with the manufacturing machine of the cigarette filter which concerns on this invention. It is sectional drawing of a corrugated filter. It is a perspective view which shows the filter element obtained by wrapping a filter core with a corrugated sheath. It is a perspective view when a filter core is wrapped in a corrugated sheath. It is the schematic which shows the manufacturing machine of the cigarette filter which concerns on this invention. It is the schematic which shows the upper surface of a corrugated sheath. It is the schematic which shows the lower surface of a corrugated sheath. It is the schematic which shows the corrugating apparatus provided with a pair of heating roll. It is sectional drawing which shows the heating roll provided with the heating apparatus.
  • a filter cigarette 1 is shown, and the filter cigarette 1 includes a corrugated cigarette filter.
  • the filter cigarette 1 includes a cigarette 2 and a rod-shaped filter unit, and the cigarette 2 and the filter unit are connected to each other by a chip paper 8.
  • the filter unit is a so-called dual filter including a plain filter (not shown) and a corrugated filter 10, and these filters are connected to each other in tandem by a molding paper 18.
  • the plain filter has a filter material made of acetate fiber and a web that wraps the filter material.
  • the corrugated filter 10 has a triple structure of a filter core 12, a corrugated sheath 14 and a web 16. Specifically, the filter core 12 is wrapped by a corrugated sheath 14. Both the filter core 12 and the corrugated sheath 14 are formed of a filter material made of acetate fibers, and form a rod-shaped filter element.
  • the corrugated sheath 14 has a large number of vertical grooves on its outer peripheral surface, and these vertical grooves extend parallel to each other along the longitudinal axis of the corrugated filter 10. It is desirable that the acetate fiber forming the corrugated sheath 14 has a smaller diameter than that of the filter core 12.
  • the filter element described above is wrapped by a web 16 from the outside, and this web 16 and the longitudinal grooves cooperate with each other to form a number of axial passages in the corrugated filter 10.
  • the corrugated filter 10 described above is manufactured by the manufacturing machine 20 shown in FIG. 5, and a manufacturing method of the manufacturing machine 20 and the corrugated filter 10 will be described below.
  • the manufacturing machine 20 includes a first transfer path 30 of acetate tow 32 for forming the filter core 12 and a second transfer path 40 of acetate tow 42 for forming the corrugated sheath 14.
  • These first and second transfer paths 30 and 40 extend from the tow supply source, that is, the tow bales 22 and 23 in which the acetate tow 32 and 42 are stored in a folded state, toward the wrapping section 88. Therefore, the acetate tows 32, 42 are sequentially fed from the tow bales 22, 23 toward the wrapping section 88 along the first and second transfer paths 30, 40.
  • the spread section 26 includes a pair of pre-tension rolls 36 and a pair of blooming rolls 38 that are disposed with the acetate tow 32 on the first transfer path 30 interposed therebetween.
  • the blooming roll 38 is located downstream of the pre-tension roll 36. Has been placed.
  • the pair of pre-tension rolls 36 can change the rotation speed, and give a desired tension to the acetate tow 32 in cooperation with the guide roll 24 arranged on the upstream side.
  • the pair of blooming rolls 38 has a large number of circumferential grooves on the outer peripheral surface thereof, and these circumferential grooves stretch the fibers of acetate tow 32 that passes on the blooming roll 38.
  • the opening section 26 includes two banding jets 34 a and 34 b in the first transfer path 30.
  • the banding jet 34a is disposed in the first transfer path 30 between the tow veil 22 and the guide roller 24, and the banding jet 34b is disposed in the first transfer path 30 between the pretension roll 36 and the plasticizer coating section 50. ing.
  • the banding jets 34 a and 34 b spray compressed air on the surface of the acetate tow 32 to open the acetate tow 32.
  • the plasticizer coating section 50 includes a pair of coating rolls 52 arranged one above the other. These coating rolls 52 bend the first transfer path 30 in a substantially S shape, That is, the acetate tow 32 is sandwiched from above and below. Also, one of the coating rolls 52 can vary its rotational speed. Therefore, the acetate tow 32 traveling on the first transfer path 30 passes through the coating rolls 52 while being sequentially wound around the pair of coating rolls 52. The acetate tow 32 here is sent out according to the rotation speed of the coating roll 52 as described above.
  • the plasticizer coating section 50 includes felts 53 that come into contact with the outer peripheral surfaces of the respective coating rolls 52, specifically, the outer peripheral surfaces other than the area where the acetate tow 32 is wound, and these felts 53 have a high liquid absorbency.
  • the felt 53 is connected to a tank device 54 through a supply pipe 55, and the tank device 54 stores a liquid plasticizer therein.
  • a plasticizer here, a triacetin is suitable, for example.
  • the tank device 54 supplies a plasticizer to each felt 53 through the supply pipe 55, and each felt 53 is in contact with the outer peripheral surface of the corresponding coating roll 52 in a state in which the plasticizer supplied from the tank device 54 is impregnated. In contact. Therefore, since each felt 53 supplies a plasticizer to the outer peripheral surface of the corresponding coating roll 52, when the acetate tow 32 passes over the pair of coating rolls 52, these coating rolls 52 are connected to the acetate tow 32. Apply plasticizer on both sides. Thereafter, the acetate tow 32 coated with the plasticizer is directed to a trumpet guide 86 as a molding machine.
  • the trumpet guide 86 receives the acetate tow 32 from the first transfer path 30. Specifically, the trumpet guide 86 converges the received acetate tow 32 to form the filter core 12, and the filter core 12 is supplied toward the wrapping section 88.
  • the second transfer path 40 also includes a fiber opening section 27, a plasticizer coating section 51, and a thermoforming section 60.
  • the opening section 27 is the same as the opening section 26 of the first transfer path 30, the description thereof is omitted.
  • the plasticizer coating section 51 is the same as the plasticizer coating section 50 described above except that the tank device 54 includes a heater 56. Specifically, the heater 56 is disposed adjacent to the plasticizer tank of the tank device 54 and can heat the plasticizer in the plasticizer tank to a desired temperature. Therefore, the plasticizer coating section 51 applies the plasticizer heated via the coating roll 52 to both surfaces of the acetate tow 42.
  • the thermoforming section 60 is disposed on the downstream side of the plasticizer coating unit 51 and includes a pair of heating rolls 62 U and 62 L. These heating rolls 62 U and 62 L are arranged with the acetate tow 42 on the second transfer path 40 interposed therebetween. Each heating roll 62 has a large number of molding teeth (not shown) that mesh with each other on the outer peripheral surface thereof. These molding teeth extend over the entire circumference of the heating roll 62 and are spaced apart in the axial direction of the heating roll 62. Has been placed.
  • the forming teeth of the pair of heating rolls 62 U and 62 L cooperate with each other to form a corrugated forming gap, and when the acetate tow 42 passes through the forming gap, the forming gap forms a number of longitudinal grooves in the acetate tow 42.
  • the acetate tow 42 is formed into a continuous corrugated tape 14t as shown in FIGS. Thereafter, the corrugated tape 14t goes to the wrapping section 88.
  • the corrugated tape 14 t can have blocking portions 44 randomly distributed on the lower surface thereof, and these blocking portions 44 partially block the longitudinal grooves. It performs the same function.
  • the wrapping section 88 is supplied with a paper web, that is, a web 16, along with the filter core 12 and the corrugated tape 14t via a plurality of guide rollers 82.
  • the corrugated tape 14t is supplied to the wrapping section 88 from the lower side of the filter core 12, while the web 16 is supplied to the wrapping section 88 from the lower side of the corrugated tape 14t. Therefore, when the filter core 12, the corrugated tape 14t, and the web 16 pass through the wrapping section 88, the wrapping section 88 is formed into a corrugated rod (not shown) that continuously wraps the filter core 12 with the corrugated tape 14t. At the same time, the corrugated rod is formed into a filter continuous body (not shown) continuously wrapped by the web 16.
  • the filter continuum is cut into individual filter rods 90 within the wrapping section 88, which filter rods 90 are delivered from the wrapping section 88.
  • the filter rod 90 has a length corresponding to several corrugated filters 10 and is used for manufacturing the filter cigarette described above.
  • FIG. 8 shows more specifically the corrugating apparatus 70 including the pair of heating rolls 62 described above, and the corrugating apparatus 70 will be described in detail below.
  • the corrugating apparatus 70 includes a support frame 69 surrounding the pair of heating rolls 62 U and 62 L.
  • the support frame 69 includes a base 71.
  • Left and right side walls 72 extend upward from the base 71, and these side walls 72 are connected to each other by a top plate 77. Therefore, the support frame 69 has opening surfaces that open toward the upstream side and the downstream side, respectively, and these opening surfaces are each closed by a cover (not shown).
  • Slits are respectively formed on the surfaces of these covers, and these slits extend horizontally in the width direction of the acetate tow 42 and the corrugated tape 14t, respectively, and are slightly larger than the widths of the acetate tow 42 and the corrugated tape 14t. have. Furthermore, each of these slits is positioned at a position corresponding to the transfer path of the acetate tow 42 and the corrugated tape 14t when the cover closes the opening surface. Therefore, these covers prevent dust and the like from entering the support frame 69, but do not hinder the travel of the acetate tow 42 and the corrugated tape 14t.
  • a pair of bearing support bases 73 are disposed in the support frame 69, and these bearing support bases 73 extend from the base 71 toward the top plate 77 and are spaced apart from each other at a predetermined interval in the width direction of the support frame 69. is doing.
  • a pair of bearing support arms 74 are suspended from the top plate 77 toward the corresponding bearing support base 73, and these bearing support arms 74 are supported to be movable up and down.
  • each bearing support arm 74 passes through the top plate 77 and is connected to a piston rod (not shown) of the air cylinder 75a at the upper end thereof.
  • the pair of air cylinders 75 a are supported by the top plate 77 and are connected to each other via a connecting member 75.
  • the pair of air cylinders 75a can extend or contract the piston rod in conjunction with each other, whereby the pair of bearing support arms 74 are moved up and down simultaneously. That is, the pair of bearing support arms 74 can be moved toward and away from the corresponding bearing support base 73 in conjunction with each other.
  • Heating roll 62 L of the lower side is disposed between the pair of bearing support base 73, and is rotatably supported by these bearings support base 73.
  • the roll shaft 80 of the heating roll 62 L protrudes from each of both end surfaces of the heating roll 62 L, is supported through a bearing on the upper end portions of the pair of bearings supporting table 73.
  • heating roll 62 U of upper is disposed between the pair of bearing support arms 74, the roll axis 81 of the heating roll 62 U is rotatably supported via a bearing on the lower end of the bearing support arms 74.
  • the roll shafts 80 and 81 of the heating rolls 62 U and 62 L respectively have one ends protruding from the bearing support base 73 and the bearing support arm 74 on the same side, and sprockets 79 are attached to these one ends.
  • a motor (not shown) is disposed on the base 71, and an output sprocket is attached to the output shaft of the motor.
  • a drive chain (not shown) is wound around the output sprocket and the sprocket 79.
  • the driving force of the motor is transmitted to the sprocket 79, that is, the heating rolls 62 U and 62 L through the driving chain, and as a result, the heating rolls 62 U and 62 L are connected to the acetate described above. According to the direction of travel of the tow 42, they are rotated in opposite directions.
  • Heating roll 62 U has a mold 62a of the ring on the outer circumferential surface thereof, the mold 62a has a larger outer diameter than the heating roll 62 U, positioned in the center between the pair of bearing support arms 74 Yes.
  • the heating roll 62 L also has a ring-shaped molding die 62 b having a larger diameter than the heating roll 62 L on the outer peripheral surface, and the molding die 62 b is positioned at the center between the pair of bearing support bases 73. . That is, the molds 62a and 62b are positioned on the same vertical plane that passes through the center between the axes of the pair of air cylinders 75a.
  • the molding dies 62a and 62b have the above-described molding teeth on their outer peripheral surfaces, and these molding teeth cooperate with each other to form a molding gap for the acetate tow 42.
  • the size of the forming gap that is, the forming pressure applied to the acetate tow 42 is determined by the inter-axis distance between the roll shafts 80 and 81 in the heating rolls 62 U and 62 L. Since the pair of air cylinders 75a as described above can raise and lower the heating roll 62 U to the heating roll 62 L, molding pressure (axial distance) can be adjusted by the expansion and contraction of the pair of air cylinders 75a.
  • the molding pressure is adjusted to approximately 2000 kgf / m 2 .
  • the peripheral speed of the molds 62a and 62b is, for example, 200 m / min.
  • the corrugating apparatus 70 contains a gap adjuster (not shown), for example.
  • the gap adjuster includes wedge members that are respectively sandwiched between the bearing support base 73 and the bearing support arm 74 on the corresponding side.
  • the heating rolls 62 U and 62 L have a pair of support tires 63a.
  • These support tires 63a have a ring shape, are attached to the outer peripheral surface of the corresponding heating roll 62, and are arranged at an equal distance from the molds 62a and 62b.
  • the support tire 63a has the same outer diameter as the outer diameters of the molds 62a and 62b.
  • Supporting tire 63a of the heating roll 62 L is rolling contact respectively from above the tire rest 78 of the roller-shaped.
  • Each tire rest 78 is rotatably supported by a holder 83, and these holders 83 are fixed on a base 71.
  • support the tire 63a of the heating roll 62 U is rolling contact respectively from below to the tire rest 78 of the roller-shaped.
  • These tire rests 78 are rotatably supported by a holder 83, and these holders 83 are attached to the lower surface of the beam member 76.
  • the beam member 76 extends horizontally and couples a pair of bearing support arms 74 to each other. Therefore, the tire rest 78, regardless of the elevation of the heating roll 62 U, it can be contacted at all times rolling in the corresponding holder 83.
  • the support tire 63a and the tire rest 78 described above increase the support points of the corresponding heating rolls 62 U and 62 L , the load applied to the roll shafts 81 and 80 is reduced, and the deflection of the roll shafts 81 and 80 is reduced. Stop without fail. As a result, the parallelism of the roll shafts 81 and 80 in the heating rolls 62 U and 62 L is maintained with high accuracy.
  • openings 76a and 77a are formed in the beam member 76 and the top plate 77, respectively. These openings 76a, 77a are positioned above the upper side of the heating roll 62 U.
  • the heating roll 62 is provided with a heating device 64 integrated therein.
  • the heating roll 62 is hollow, and the inside of the roll body is partitioned into an outer sealed chamber 66 and a coil chamber 65 surrounded by the sealed chamber 66.
  • the sealed chamber 66 is formed over the entire length of the heating roll 62, and a heat medium is sealed in the inside thereof in a negative pressure (vacuum) state. That is, the sealed chamber 66 provides a heat pipe structure on the outer peripheral surface of the heating roll 62.
  • an induction coil unit 68 is accommodated in the coil chamber 65, and the dielectric coil unit 68 extends in the axial direction of the heating roll 62.
  • the induction coil unit 68 includes a core and an induction coil wound around the core, and the induction coil has a pair of lead wires 67. These lead wires 67 are drawn out of the heating roll 62 through the roll shaft 81 and connected to a power source (not shown). Therefore, when a current is supplied from the power source to the dielectric coil, the dielectric coil generates a magnetic flux in the core. Since this magnetic flux induces an induced current in the outer peripheral wall of the heating roll 62, the outer peripheral wall self-heats due to resistance heat.
  • the portion on the outer peripheral side of the heating roll 62 has a heat pipe structure, the outer peripheral wall of the heating roll 62 generates heat uniformly.
  • the above-described forming die 62a is quickly heated by receiving heat from the outer peripheral wall of the heating roll 62.
  • the mold 62a is heated to approximately 200 ° C.
  • each of the pair of heating rolls 62 U and 62 L is supported at both ends via the roll shafts 81 and 80, while the forming die 62 a of the heating rolls 62 U and 62 L is provided.
  • , 62b are positioned in the same vertical plane passing through the center between the axes of the pair of air cylinders 75a. Therefore, even if the molding pressure for the acetate tow 42 is increased, the axis of the heating roll 62 is not bent, and the molding gap between the molding dies 62a and 62b is maintained with high accuracy.
  • each of the pair of heating rolls 62 U and 62 L is also supported by the tire rest 78, the support points for supporting the pair of heating rolls 62 U and 62 L are increased.
  • the load applied to the roll shafts 81 and 80 of the pair of heating rolls 62 U and 62 L is reduced, and the bending of the roll shafts 81 and 80 is surely prevented.
  • the corrugating apparatus 70 is suitable for processing a corrugated tape 14t, that is, a thin and narrow web such as a cigarette filter material. is there.
  • the plasticizer applied to the acetate tow 42 is preliminarily heated in the tank device 54 as described above, the heating temperature of the heating roll 62, that is, the molds 62a and 62b is suppressed.
  • the temperature of the acetate tow 42 can be increased.
  • the production speed of the corrugated tape 14t can be increased, that is, the productivity can be improved while maintaining the quality of the corrugated tape 14t.
  • a plasticizer vapor is generated between the molds 62a and 62b, that is, from the molding gap. This vapor passes through the openings 76a and 77a described above, and the vapor of the support frame 69 is generated. It is discharged to the outside and the vapor does not adversely affect the quality of the corrugated tape 14t.
  • the molding pressure of the acetate tow 42 can also be imparted to the heating roll 62 U by a single air cylinder.
  • the air cylinder is disposed in the same vertical plane as the molding die 62a and is connected to, for example, the beam member 76 described above.
  • the side wall 72 of the support frame 69 has openings for allowing the vapor of the plasticizer to escape instead of the openings 76a and 77a described above.
  • the support tire 63a and the tire rest 78 are not necessarily required, and the heating roller 62 may only be supported at both ends via the roller shaft.

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  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)

Abstract

La présente invention concerne une machine à fabriquer (20) des filtres à cigarette comportant une paire de cylindres chauffants (62U, 62L) entre lesquels est disposé un boudin de filasse servant de gaine cannelée. Ladite machine comporte également des moules à canneler (62a, 62b) qui moulent un grand nombre de sillons longitudinaux sur le boudin de filasse par chauffage, ainsi que des arbres de cylindre (81, 80) qui font respectivement saillie depuis les deux surfaces terminales de ces derniers, des bras de support d'appui (74) et des plateaux de support d'appui (73) qui supportent de façon rotative la paire de cylindres chauffants (62U, 62L) aux deux extrémités des arbres des cylindres (81, 80) respectivement, et une paire de cylindres pneumatiques (75a) qui appliquent une pression de moulage homogène le long de la largeur d'un orifice moulé sur le boudin de filasse passant entre les moules à canneler (62a, 62b) par pression du cylindre chauffant (62U) contre le cylindre chauffant (62L) par l'intermédiaire des bras de support d'appui (74) sur les deux côtés d'un cylindre chauffant (62U).
PCT/JP2010/064763 2010-08-31 2010-08-31 Machine à fabriquer des filtres à cigarette et procédé de fabrication de ceux-ci WO2012029117A1 (fr)

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PCT/JP2010/064763 WO2012029117A1 (fr) 2010-08-31 2010-08-31 Machine à fabriquer des filtres à cigarette et procédé de fabrication de ceux-ci

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PCT/JP2010/064763 WO2012029117A1 (fr) 2010-08-31 2010-08-31 Machine à fabriquer des filtres à cigarette et procédé de fabrication de ceux-ci

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WO2012029117A1 true WO2012029117A1 (fr) 2012-03-08

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Cited By (2)

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Publication number Priority date Publication date Assignee Title
WO2014198815A1 (fr) * 2013-06-13 2014-12-18 Essentra Filter Products Development Co. Pte. Ltd Filtre pour la fumée de tabac
JP2021166517A (ja) * 2017-06-16 2021-10-21 株式会社東亜産業 電子タバコカートリッジ

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JPS5729281A (en) * 1980-07-11 1982-02-17 Brown & Williamson Tobacco Apparatus for forming groove to tobacco filter
JP2000000901A (ja) * 1998-06-17 2000-01-07 Rengo Co Ltd ロール間平行調整方法
JP2007000019A (ja) * 2005-06-21 2007-01-11 Mitsubishi Rayon Co Ltd たばこフィルターの製造方法

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Publication number Priority date Publication date Assignee Title
JPS5729281A (en) * 1980-07-11 1982-02-17 Brown & Williamson Tobacco Apparatus for forming groove to tobacco filter
JP2000000901A (ja) * 1998-06-17 2000-01-07 Rengo Co Ltd ロール間平行調整方法
JP2007000019A (ja) * 2005-06-21 2007-01-11 Mitsubishi Rayon Co Ltd たばこフィルターの製造方法

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014198815A1 (fr) * 2013-06-13 2014-12-18 Essentra Filter Products Development Co. Pte. Ltd Filtre pour la fumée de tabac
US10939701B2 (en) 2013-06-13 2021-03-09 Essentra Filter Products Development Co. Pte. Ltd Tobacco smoke filter
EP4245161A3 (fr) * 2013-06-13 2023-12-13 Filtrona Filter Products Development Co. Pte. Ltd Filtre à fumée de tabac
JP2021166517A (ja) * 2017-06-16 2021-10-21 株式会社東亜産業 電子タバコカートリッジ
JP7062809B2 (ja) 2017-06-16 2022-05-06 Ｆｕｔｕｒｅ Ｔｅｃｈｎｏｌｏｇｙ株式会社 電子タバコカートリッジ

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