WO2016151848A1 - Dispositif de formation de fente et procédé de formation de fente - Google Patents

Dispositif de formation de fente et procédé de formation de fente Download PDF

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Publication number
WO2016151848A1
WO2016151848A1 PCT/JP2015/059417 JP2015059417W WO2016151848A1 WO 2016151848 A1 WO2016151848 A1 WO 2016151848A1 JP 2015059417 W JP2015059417 W JP 2015059417W WO 2016151848 A1 WO2016151848 A1 WO 2016151848A1
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WO
WIPO (PCT)
Prior art keywords
shaped member
rod
slit
axis
cutting edge
Prior art date
Application number
PCT/JP2015/059417
Other languages
English (en)
Japanese (ja)
Inventor
紳司 石井
学 屋代
Original Assignee
日本たばこ産業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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/JP2015/059417 priority Critical patent/WO2016151848A1/fr
Publication of WO2016151848A1 publication Critical patent/WO2016151848A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/14—Machines of the continuous-rod type
    • 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
    • A24D1/00—Cigars; Cigarettes
    • A24D1/02—Cigars; Cigarettes with special covers

Definitions

  • the present invention relates to a slit forming apparatus and a slit forming method for forming a slit along a circumferential direction for a rod-like member such as a filter for smoking articles.
  • a filter cigarette that can introduce outside air into a filter by forming an opening in a peripheral surface of a rod-shaped smoking article filter and forming an opening in a chip paper covering the filter outer periphery corresponding to the opening are known.
  • a slit is formed in the peripheral surface while leaving a core in the filter, so that the suction side and the cigarette side of the filter can be relatively rotated.
  • the degree of overlap between the opening of the filter formed on the cigarette side of the slit and the opening of the chip paper is changed by rotating the suction side portion with the chip paper from the slit of the filter. The taste can be changed.
  • a slit is formed by rotating both the rotary knife and the filter.
  • the openings are formed by rotary knives arranged on the movement trajectory of the filters arranged on the rotary drum.
  • the filter when the filter is rotated after the conveyance of the filter is stopped, the production efficiency of the filter cigarette deteriorates.
  • the range in which the rotary knife can contact the filter on the rotating drum is limited. For this reason, it is impossible to form a slit having a uniform depth all around the filter. That is, the core part in the slit part of the filter does not have a perfect circle shape. For this reason, when the suction side and the cigarette side of the filter are relatively rotated, a biased force is applied to the core portion, and there is a possibility that the filter can be easily threaded.
  • Patent Document 1 when one slit is formed by rotary knives arranged at two positions with respect to the rotation direction of the rotary drum, even a slight deviation is caused in the position of each rotary knife or the arrangement posture of the filter. If it occurs, there is a possibility that the quality of the filter may be deteriorated such that two slits for half a circumference are formed instead of one slit, or chips are generated.
  • the object of the present invention is to form a slit without stopping the conveyance of the rod-like member, to improve the uniformity of the depth in the slit and the roundness of the core, It is providing the slit formation apparatus and the slit formation method which can improve this.
  • the slit forming apparatus of the present invention which comprises: In the slit forming device for forming a slit along the circumferential direction of the rod-shaped member on the circumferential surface of the rod-shaped member, A transport section that defines a transport path for transporting the bar-shaped member in a direction intersecting the axial direction of the bar-shaped member, and includes a support section that supports the rod-shaped member and moves along the transport path; A rotation imparting portion that is fixed in the vicinity of the conveyance path and rotates the rod-shaped member around an axis in cooperation with the support portion in the conveyance process of the rod-shaped member; Including at least one cutting edge that moves, and when the rod-shaped member is rotating around an axis, the slit-shaped member is formed with the slit formed in the rod-shaped member,
  • the transport path defines a range in which the bar-shaped member rotates at least once as a cutting range along a movement locus drawn by movement of the cutting edge of the cutting portion,
  • a range in which the bar-shaped member rotates at least once is defined as a cutting range in the transport path along which the bar-shaped member is transported, and the axis of the bar-shaped member moves in the cutting range. Is made along the movement trajectory of the blade edge, and the distance between both movement trajectories is made shorter than the radius of the rod-shaped member, the uniformity of the depth of the slit and the roundness of the core portion can be improved.
  • the present invention also provides a slit forming method corresponding to the slit forming apparatus described above.
  • the slit can be formed without stopping the conveyance of the rod-like member, the uniformity of the depth in the slit and the roundness of the core portion are improved, and the heel quality is improved. Can be improved.
  • the slit forming apparatus of the present invention forms a slit in a rod-like member, and can be provided, for example, in a part of the transport path of a filter cigarette manufacturing machine.
  • the filter cigarette manufactured by this filter cigarette manufacturing machine has an opening on the peripheral surface of the filter and chip paper, for example, and the filter opening and the chip paper are rotated by relatively rotating the suction side and the cigarette side of the filter.
  • the degree of overlap with the opening can be changed, the amount of ventilation can be changed, and the taste can be adjusted.
  • the slit formation apparatus provided in a part of such a filter cigarette manufacturing machine is demonstrated as an Example.
  • the slit forming apparatus 1 receives the filter rod 3 transported by the transport drum 2 and forms the slit 4 along the circumferential direction of the filter rod 3 while transporting the filter rod 3.
  • the filter rod 3 in this embodiment is a rod-shaped member having a length corresponding to four filters, and four slits are formed.
  • the filter rod 3 after the slit formation is conveyed from the slit forming apparatus 1 to the downstream side of the conveyance path of the cigarette manufacturing machine, an opening is formed at a predetermined position on the peripheral surface of the filter rod, and then cut into individual filters.
  • the chip paper is wound in a state in which each filter and cigarette are connected, and the above-described filter cigarette is finally manufactured.
  • the slit forming apparatus 1 includes a transport unit 10 (transport unit) that transports the filter rod 3, a rotation imparting unit 20 (rotation imparting unit) that rotates the filter rod 3 on the transport path, and a notch unit that forms a slit. 30 (incision part).
  • a transport unit 10 transport unit
  • a rotation imparting unit 20 rotation imparting unit
  • a notch unit that forms a slit. 30 (incision part).
  • cylindrical support rollers 11 (support portions, roller members) are arranged in parallel and spaced apart from each other in a direction crossing the axial direction, and the support rollers 11 on the same side at both ends of each support roller 11.
  • This is a so-called chain conveyor in which ends are connected by a chain 12.
  • each chain 12 a plurality of meshing rollers 12a are meshed with the sprockets 13 and 14, and are wound around the pair of sprockets 13 and 14.
  • One sprocket is a drive sprocket 13 connected to an actuator (not shown), and the other sprocket is a driven sprocket 14.
  • Each meshing roller 12a of each chain 12 and each support roller 11 are connected coaxially and rotate integrally. Accordingly, when the drive sprocket 13 is driven to rotate by the actuator, the pair of chains 12 and the support roller 11 circulate between the sprockets 13 and 14.
  • the upper surface side of the circulation path of the support roller 11 defines a conveyance path for conveying the filter rod 3 in a direction intersecting with the axial direction of the filter rod 3.
  • the filter rod 3 is disposed between the pair of support rollers 11 in parallel with the axial direction of the support roller 11. That is, the support roller 11 defines a pocket for holding the filter rod 3 between the pair of support rollers 11. The pockets support the filter rod 3 while allowing the support rollers 11 to rotate, allowing the filter rod 3 to rotate about the axis of the filter rod 3.
  • the transport unit 10 further includes covers 15 and 15 that cover the periphery of each chain 12. As shown in FIG. 2, an upper guide 16 and a lower guide 17 that are curved along the circulation path of the chain 12 are disposed at the upper and lower portions in each cover 15.
  • the upper guide 16 has a substantially arc shape with the lower part protruding downward, and presses the chain 12 from the upper side to the lower side at the upper part of the circulation path of the chain 12.
  • the lower surface of the upper guide 16 has an arc portion 16a in which the curvature is concentric with the rotary knife 31 in a certain range in the central portion in the transport direction.
  • the upper guide 16 has a shape extending smoothly in the horizontal direction from the arc 16a toward the end. Therefore, the chain 12 becomes a circular path curved along the lower surface of the upper guide 16, and a curved part curved with a curvature concentric with the curvature of the rotary knife 31 corresponding to the circular arc part 16a is defined in the conveying path. .
  • the lower guide 17 has an upwardly convex substantially circular arc shape, and presses the chain 12 upward from the lower side at the lower part of the circulation path of the chain 12.
  • the lower guide 17 is for applying tension so that the chain 12 does not loosen, and has a mechanism that can move up and down to adjust the tension, although not shown.
  • the cutting unit 30 and the rotation imparting unit 20 are provided across the upper portions of the covers 15.
  • the cutting unit 30 includes a bearing portion 32 provided at the upper part of both covers 15, a rotating shaft 33 whose end is pivotally supported by the bearing portion 32, and four rotary knives 31 provided on the rotating shaft 33. have.
  • the rotary knives 31 are provided on the rotary shaft 33 at intervals.
  • Each rotary knife 31 has a disk shape centered on the rotation shaft 33 and has a cutting edge 31a on the outer periphery. And each rotary knife 31 rotates because the rotating shaft 33 rotates by the actuator which is not shown in figure, and the blade edge
  • the rotation imparting unit 20 has a pair of cross members 21 extending between the covers 15 and a plurality of rolling blocks 22 (pressing members) extending between the pair of cross members 21.
  • the pair of cross members 21 are provided on the upstream side and the downstream side in the transport direction so as to sandwich the cutting unit 30 at the upper part of both covers 15.
  • Each rolling block 22 is disposed between the rotary knives 31, and each end is connected to the cross member 21.
  • the rolling block 22 has a downwardly convex arc shape as shown in FIG. Similar to the upper guide 16 described above, the lower surface of the rolling block 22 has an arc portion 22a having a curvature that is concentric with the rotary knife 31 in a certain range in the central portion in the transport direction. Further, the rolling block 22 has a shape extending smoothly in the horizontal direction from the arc portion 22a toward the end portion. However, the lower surface of the rolling block 22 is located above the lower surface of the upper guide 16. The lower surface of the rolling block 22 is knurled.
  • the distance between the lower surface of the rolling block 22 and the support roller 11 is slightly shorter than the diameter of the filter rod 3, so that when the filter rod 3 is conveyed to the lower surface of the rolling block 22, the filter rod 3 It is pressed toward the support roller 11 by the lower surface.
  • the filter rod 3 is subjected to resistance at the upper part in the conveying process, while the lower part is supported by the rotatable support roller 11, so that rotation is imparted clockwise as viewed in FIG. 3. .
  • the filter rod 3 rotates at least once.
  • the arc portion 22 a of the rolling block 22 is located above the lowermost portion of the rotary knife 31, and the cutting edge 31 a of the rotary knife 31 partially protrudes below the lower surface of the rolling block 22.
  • a range in which the blade edge 31a protrudes from the lower surface of the rolling block 22 is a cutting range in which a slit is formed in the filter rod 3 in the transport path.
  • the incision range is a range in which the filter rod 3 rotates at least once. And since the said cutting range is contained in the range of a curved part, it becomes the range of the conveyance path
  • the movement trajectory A drawn by the axis of the filter rod 3 conveyed through the curved portion is along a concentric curvature with the movement trajectory of the cutting edge 31a.
  • the movement locus of the cutting edge 31a and the movement locus A of the axis of the filter rod 3 are shorter than the radius R of the filter rod 3 and have a constant interval I. That is, since the depth of the slit 4 formed by the rotary knife 31 is shorter than the radius R of the filter rod 3 and is constant, the filter rod 3 after the slit is formed has a perfect circular core portion 3a.
  • the filter unit 3 is received from the transport drum 2 by the pocket defined between the pair of support rollers 11 in the transport unit of the slit forming apparatus 1. And the support roller 11 conveys the filter rod 3 by receiving the rotational driving force by the drive sprocket 13 together with the chain 12 and moving in the conveying direction (white arrow in FIG. 3).
  • the filter rod 3 is rotated by the rolling block 22 and enters the curved portion of the conveyance path. Furthermore, when the filter rod 3 enters the cutting range while rotating, the filter rod 3 comes into contact with the cutting edge 31a of the rotary knife 31 protruding from the lower surface of the rolling block 22, and a slit is formed. The filter rod 3 passes through the cut range after one rotation or more, passes through the curved portion, and is conveyed to the next step in the filter cigarette manufacturing apparatus.
  • a rotary knife 31 is used to form the slit 4, whereas a chain conveyor is used as the transport unit 10 and the curvature of the rotary knife is concentric with the curvature of the rotary knife in the transport path.
  • a curved portion having a cutting depth By forming a curved portion having a cutting depth, a cutting range along the movement locus of the blade edge 31a is realized. That is, the slit 4 can be formed while the filter rod 3 is conveyed.
  • the filter rod 3 rotates at least once, and the movement locus of the cutting edge 31a and the movement locus A of the axis of the filter rod 3 are shorter than the radius R of the filter rod 3 and have a constant interval I. Therefore, the slit 4 having a uniform depth can be formed, and the perfect circular core 3a can be reliably left on the filter rod 3.
  • the slit forming apparatus 1 by using a chain conveyor that circulates the support roller 11 and the chain 12 as the transport unit 10, an easy configuration in which only the upper guide 16 is provided is provided in the transport path. A curved portion along the cutting edge 31a can be formed.
  • the filter rod 3 is transported and the filter rod 3 is rotatably supported. Can be made compatible. And the filter rod 3 can be easily rotated only by pressing the filter rod 3 with the rolling block 22 fixed to the vicinity of the conveyance path
  • the slit 4 can be formed without stopping the conveyance of the filter rod 3, and the uniformity of the depth in the slit 4 and the core portion can be formed. It is possible to improve the roundness of the soot and improve the quality of the filter rod 3.
  • FIG. 5 shows a sectional view of the slit forming apparatus 40 of the second embodiment, which will be described below with reference to FIG.
  • symbol is attached
  • the cutting unit 50 instead of the four rotary knives 31 according to the first embodiment, four cutters 51 (only one is shown in FIG. 5) are used for the filter rod 3. A slit is formed.
  • a saw chain 53 having a plurality of blades is wound around the outer periphery of a rounded rectangular guide plate 52 like a chain saw, for example. Then, the saw chain 53 is rotated around the outer periphery of the guide plate 52 by an actuator (not shown). Therefore, in the cutter 51 of the present embodiment, the cutting edge 53a of the saw chain 53 draws a movement locus of a rounded rectangular shape that is long in the horizontal direction.
  • the transport unit 60 includes the support roller 11 and the chain 12, the sprockets 13 and 14, the cover 15, and the lower guide 17 (not shown) as in the first embodiment, but the upper guide 16 is eliminated. Defines a linear transport path.
  • the rotation imparting unit 70 is provided with a pair of cross members 71 sandwiching the cutter 51 above the cover 15, and a plurality of rolling blocks 72 (only one is shown in FIG. 5) is provided between the cross members.
  • the rolling block 72 has a straight bottom surface corresponding to the straight conveyance path.
  • the lower surface of the rolling block 72 is positioned above the lowermost portion of the cutting edge 53 a of the cutter 51, and the cutting edge 53 a partially protrudes below the lower surface of the rolling block 72.
  • the range in which the blade edge 53a protrudes from the lower surface of the rolling block 72 is the cutting range in the second embodiment.
  • the filter rod 3 rotates at least once, and the movement trajectory of the axis of the filter rod 3 forms a straight line along the movement trajectory of the cutting edge 53a extending in the horizontal direction. Furthermore, in the cutting range, the distance between the movement trajectory of the filter rod 3 being conveyed and the movement trajectory of the cutting edge 53a is shorter and constant than the radius of the filter rod 3.
  • the slit forming apparatus 40 according to the second embodiment configured as described above can achieve the same effects as those of the first embodiment.
  • the transport path can be linear
  • the transport unit 60 and the rotation imparting unit 70 can be simplified. It can be set as a simple structure.
  • FIG. 6 shows a sectional view of the slit forming apparatus of the third embodiment, which will be described below.
  • a slit is formed in the filter rod 3 using a bending cutter 91 obtained by bending the cutter 51 of the second embodiment as the cutting unit 90.
  • a saw chain 93 including a plurality of blades is wound around the outer periphery of a rounded rectangular guide plate 92 that is curved in an arc shape.
  • the saw chain 93 is rotated around the outer periphery of the guide plate 92 by an actuator (not shown). Therefore, in the bending cutter 91 of the present embodiment, the cutting edge 93a of the saw chain 93 is curved in an arc shape, and a moving locus of a rounded rectangle is drawn.
  • the support roller 101 and the chain 102 are wound around one drive sprocket 103. Accordingly, the transport unit 100 defines an arc-shaped transport path.
  • the rotation imparting unit 110 is provided with a rolling block 111 (only one is shown in FIG. 5) curved with a curvature concentric with the curvature of the transport path.
  • the bending cutter 91 is also curved with a curvature that is concentric with the curvature of the conveyance path.
  • the inner side surface of the curved portion of the rolling block 111 is positioned outside the cutting edge 93a of the bending cutter 91, and the cutting edge 93a partially protrudes inside the inner side surface of the rolling block 111.
  • the range in which the cutting edge 93a protrudes from the inner surface of the rolling block 111 is the cutting range in the third embodiment.
  • the filter rod 3 rotates at least once, and the movement locus of the axis of the filter rod 3 is along the movement locus of the curved cutting edge 93a.
  • the distance between the movement trajectory of the filter rod 3 being conveyed and the movement trajectory of the blade edge 93a is shorter and constant than the radius of the filter rod 3.
  • the slit forming apparatus 80 of the third embodiment configured as described above can achieve the same effects as those of the first embodiment, and in particular, the overall configuration can be made compact by making the transport path arc-shaped.
  • a rotary drum similar to the transport drum 2 may be used instead of the transport unit 100 including the support roller 101, the chain 102, and the drive sprocket 103.
  • the rod-shaped member forming the slit is the filter rod 3, but the rod-shaped article is not limited to this, and the present invention is applied to other smoking articles and rod-shaped members other than smoking articles. Applicable.

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

Abstract

Un dispositif de formation de fente (1) selon la présente invention est configuré de telle sorte qu'une unité de transport (10) comprenant des rouleaux de support (11) et une chaîne (12) définisse un parcours de transport par rapport à des couteaux rotatifs (31) pour former des fentes (4) sur un bâtonnet-filtre (3). Le parcours de transport définit une zone sur laquelle le bâtonnet-filtre (3) tourne au moins une fois en tant que zone de coupe. Lorsque le bâtonnet-filtre (3) est transporté dans la zone de coupe, qui s'étend le long de la trajectoire de déplacement des bords de coupe (31a) des couteaux rotatifs (31), la trajectoire de déplacement de l'axe de celui-ci suit la trajectoire de déplacement des bords de coupe (31a) des couteaux rotatifs (31). La distance (I) entre ces trajectoires est inférieure au rayon (R) du bâtonnet-filtre (3).
PCT/JP2015/059417 2015-03-26 2015-03-26 Dispositif de formation de fente et procédé de formation de fente WO2016151848A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2015/059417 WO2016151848A1 (fr) 2015-03-26 2015-03-26 Dispositif de formation de fente et procédé de formation de fente

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2015/059417 WO2016151848A1 (fr) 2015-03-26 2015-03-26 Dispositif de formation de fente et procédé de formation de fente

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WO2016151848A1 true WO2016151848A1 (fr) 2016-09-29

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109757764A (zh) * 2019-01-22 2019-05-17 常德三友机械制造有限公司 一种滤棒接收装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5435300A (en) * 1977-08-05 1979-03-15 Molins Ltd Method and machine for producing cigarette with pores and product
US4219030A (en) * 1977-08-19 1980-08-26 Liggett Group Inc. Aeration groove filter
JPH05176744A (ja) * 1991-12-27 1993-07-20 Japan Tobacco Inc 紙巻たばこの搬送装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5435300A (en) * 1977-08-05 1979-03-15 Molins Ltd Method and machine for producing cigarette with pores and product
US4219030A (en) * 1977-08-19 1980-08-26 Liggett Group Inc. Aeration groove filter
JPH05176744A (ja) * 1991-12-27 1993-07-20 Japan Tobacco Inc 紙巻たばこの搬送装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109757764A (zh) * 2019-01-22 2019-05-17 常德三友机械制造有限公司 一种滤棒接收装置
CN109757764B (zh) * 2019-01-22 2023-12-05 常德三友机械制造有限公司 一种滤棒接收装置

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