WO2016151848A1 - Slit forming device and slit forming method - Google Patents

Slit forming device and slit forming method 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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WIPO (PCT)
Prior art keywords
shaped member
rod
slit
axis
cutting edge
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PCT/JP2015/059417
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French (fr)
Japanese (ja)
Inventor
紳司 石井
学 屋代
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日本たばこ産業株式会社
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Priority to PCT/JP2015/059417 priority Critical patent/WO2016151848A1/en
Publication of WO2016151848A1 publication Critical patent/WO2016151848A1/en

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    • 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

A slit forming device (1) according to the present invention is configured so that a conveyor unit (10) comprising support rollers (11) and a chain (12) defines a conveying path relative to rotary knives (31) for forming slits (4) on a filter rod (3). The conveying path defines a region on which the filter rod (3) rotates at least once as a cutting region. When the filter rod (3) is conveyed in the cutting region, which extends along the path of movement of the cutting edges (31a) of the rotary knives (31), the path of movement of the axis thereof follows the path of movement of the cutting edges (31a) of the rotary knives (31). The distance (I) between these paths is shorter than the radius (R) of the filter rod (3).

Description

スリット形成装置及びスリット形成方法Slit forming apparatus and slit forming method
　本発明は、例えば喫煙物品用フィルタ等の棒状部材に対して周方向に沿ったスリットを形成するスリット形成装置及びスリット形成方法に関する。 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.
　近年、棒状の喫煙物品用フィルタの周面に開口を形成し、この開口に対応してフィルタ外周を覆うチップペーパにも開口を形成することで、フィルタ内に外気を導入可能としたフィルタシガレットが知られている。 In recent years, 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.
　例えば、特許文献１に記載のフィルタシガレットでは、フィルタに芯を残しつつ周面にスリットを形成し、フィルタの吸口側とシガレット側とが相対的に回転可能としている。このような構成により、特許文献１では、フィルタのスリットより吸口側部分をチップペーパとともに回転させることで、スリットよりシガレット側に形成されたフィルタの開口とチップペーパの開口との重なり度合いを変更し、喫味感を変化されることが可能である。 For example, in the filter cigarette described in Patent Document 1, 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. With such a configuration, in Patent Document 1, 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.
　このような特許文献１に記載のフィルタシガレットでは、ロータリナイフとフィルタの双方を回転させることによりスリットを形成している。また開口は、回転ドラム上に並べられたフィルタに対して、当該フィルタの移動軌跡上に配置したロータリナイフにより形成している。 In such a filter cigarette described in Patent Document 1, 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.
国際公開第84/01279号International Publication No. 84/01279
　しかしながら、特許文献１のようなスリット形成装置では、スリットを形成するためにロータリナイフとフィルタの双方を回転させる機構を必要とするが、特許文献１では当該機構がフィルタシガレットの製造過程のどの位置でどのように設けられているのか不明である。 However, in the slit forming apparatus as in Patent Document 1, a mechanism for rotating both the rotary knife and the filter is required to form the slit. In Patent Document 1, however, the mechanism is located at any position in the filter cigarette manufacturing process. It is unclear how it is provided.
　例えばフィルタの搬送を止めた上で、当該フィルタを回転させた場合には、フィルタシガレットの製造効率が悪化してしまう。又は、開口の形成と同様に、回転ドラム上に並べられたフィルタに対してロータリナイフによりスリットを形成しようとした場合は、回転ドラム上のフィルタに対し、ロータリナイフが接触できる範囲は限定的であるため、フィルタの全周に深さを均一としたスリットを形成することはできない。つまり、フィルタのスリット部分における芯部は真円状とはならない。このため、フィルタの吸口側とシガレット側とを相対回転させると、芯部に偏った力がかかり、容易にねじ切れるおそれがある。 For example, when the filter is rotated after the conveyance of the filter is stopped, the production efficiency of the filter cigarette deteriorates. Or, when forming a slit with a rotary knife for filters arranged on the rotating drum, as in the case of forming the opening, 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.
　また、特許文献１のように、回転ドラムの回転方向に対して２箇所に配置されたロータリナイフにより１つのスリットを形成するとした場合、各ロータリナイフの位置やフィルタの配置姿勢にわずかでもズレが生じれば、１つのスリットとならず半周分のスリットが２つ形成されたり、切りくずが生じたりするなど、フィルタの品質低下を招くおそれがある。 Further, as in 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.
　以上のような問題に鑑みて、本発明の目的は、棒状部材の搬送を止めることなくスリットを形成することができ、当該スリットにおける深さの均一性及び芯部の真円性を高め、品質を向上させることのできるスリット形成装置及びスリット形成方法を提供することにある。 In view of the above problems, 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.
　前述の目的は本発明のスリット形成装置によって達成され、該スリット形成装置は、
棒状部材の周面に前記棒状部材の周方向に沿ったスリットを形成するスリット形成装置において、
前記棒状部材の軸線方向と交差する向きに前記棒状部材を搬送する搬送経路を規定し、前記棒状部材を支持し且つ前記搬送経路に沿って移動する支持部を含む、搬送部と、
前記搬送経路の近傍にて固定され、前記棒状部材の搬送過程にて前記支持部と協働して前記棒状部材を軸線回りに回転させる回転付与部と、
移動する少なくとも１つの刃先を含み、前記棒状部材が軸線回りに回転しているときに、前記棒状部材に前記スリットを形成する切込部と、を備え、
前記搬送経路は、前記棒状部材が少なくとも１回転する範囲を、前記切込部の刃先の移動により描かれる移動軌跡に沿わせた切込範囲として規定し、
当該切込範囲では、前記切込部の刃先の移動により描かれる移動軌跡と、搬送される前記棒状部材の軸線の移動軌跡との間隔を前記棒状部材の半径より短くする。 The foregoing object is achieved by 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,
In the cutting range, the distance between the movement locus drawn by the movement of the cutting edge of the cutting portion and the movement locus of the axis of the rod-shaped member to be conveyed is made shorter than the radius of the rod-shaped member.
　前述のスリット形成装置によれば、棒状部材が搬送される搬送経路に、当該棒状部材が少なくとも１回転する範囲を切込範囲と規定して、当該切込範囲では、棒状部材の軸線の移動軌跡を刃先の移動軌跡に沿わせ、両移動軌跡の間隔を当該棒状部材の半径より短くとすることで、スリットの深さの均一性及び芯部の真円性を高めることができる。 According to the slit forming device described above, 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.
　また、本発明は、上述のスリット形成装置に対応したスリット形成方法も提供する。 The present invention also provides a slit forming method corresponding to the slit forming apparatus described above.
　本発明のスリット形成装置及びスリット形成方法によれば、棒状部材の搬送を止めることなくスリットを形成することができ、当該スリットにおける深さの均一性及び芯部の真円性を高め、 品質を向上させることができる。 According to the slit forming apparatus and the slit forming method of the present invention, 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.
第１実施例のスリット形成装置を示した斜視図である。It is the perspective view which showed the slit formation apparatus of 1st Example. 第１実施例のスリット形成装置におけるガイドとチェーンとの関係を示す断面図である。It is sectional drawing which shows the relationship between the guide and chain in the slit formation apparatus of 1st Example. 第１実施例のスリット形成装置におけるローリングブロックとフィルタとの関係を示す断面図である。It is sectional drawing which shows the relationship between the rolling block and filter in the slit formation apparatus of 1st Example. 図３の要部拡大断面図である。It is a principal part expanded sectional view of FIG. 第２実施例のスリット形成装置を示した断面図である。It is sectional drawing which showed the slit formation apparatus of 2nd Example. 第３実施例のスリット形成装置を示した断面図である。It is sectional drawing which showed the slit formation apparatus of 3rd Example.
　本発明のスリット形成装置は、棒状部材にスリットを形成するものであり、例えばフィルタシガレット製造機の搬送経路の一部に設けることができる。このフィルタシガレット製造機により製造されるフィルタシガレットは、例えばフィルタ及びチップペーパの周面に開口を有し、フィルタの吸口側とシガレット側とを相対的に回転させることで、フィルタの開口とチップペーパの開口との重なり度合いを変更し、通気量を変化させ喫味感を調整可能なものである。以下、このようなフィルタシガレット製造機の一部に設けられたスリット形成装置を実施例として説明する。 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. Hereinafter, the slit formation apparatus provided in a part of such a filter cigarette manufacturing machine is demonstrated as an Example.
　まず図１から図３を参照すると、第１実施例に係るスリット形成装置１が示されている。第１実施例に係るスリット形成装置１は、搬送ドラム２により搬送されてきたフィルタロッド３を受け取り、当該フィルタロッド３を搬送しつつ、当該フィルタロッド３の周方向に沿ってスリット４を形成する装置である。本実施例でのフィルタロッド３は、フィルタ４本分の長さを有した棒状部材であり、スリットも４つ形成する。スリット形成後のフィルタロッド３は、当該スリット形成装置１からシガレット製造機の搬送経路下流側に搬送され、フィルタロッドの周面の所定位置に開口が形成された後、個々のフィルタに切断されて、各フィルタとシガレットを連ねた状態でチップペーパを巻き付けられ、最終的に上述したフィルタシガレットが製造される。 First, referring to FIG. 1 to FIG. 3, a slit forming apparatus 1 according to a first embodiment is shown. The slit forming apparatus 1 according to the first embodiment 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. Device. 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.
　スリット形成装置１は、フィルタロッド３を搬送する搬送ユニット１０（搬送部）と、フィルタロッド３を搬送経路上にて回転させる回転付与ユニット２０（回転付与部）と、スリットを形成する切込ユニット３０（切込部）とを含んでいる。本実施例では、切込ユニット３０として円板状のロータリナイフ３１を４つ有しており、１つのフィルタロッド３に対し同時に４箇所スリット４を形成可能である。 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). In the present embodiment, there are four disk-shaped rotary knives 31 as the cutting unit 30, and the four slits 4 can be formed simultaneously for one filter rod 3.
　搬送ユニット１０は、円筒状の支持ローラ１１（支持部、ローラ部材）が軸線方向と交差する向きに互いに離間して平行に並べられ、各支持ローラ１１の両端において、それぞれ同一側の支持ローラ１１端部同士をチェーン１２で繋いだ、いわゆるチェーンコンベアである。 In the transport unit 10, 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.
　各チェーン１２はそれぞれ、複数の噛合ローラ１２ａがスプロケット１３、１４に噛合されて、当該一対のスプロケット１３、１４間に掛け回されている。一方のスプロケットは図示しないアクチュエータと接続された駆動スプロケット１３であり、他方のスプロケットは従動スプロケット１４である。各チェーン１２の各噛合ローラ１２ａと、各支持ローラ１１とは同軸上に連結されており一体的に回転する。従って、アクチュエータにより駆動スプロケット１３が回転駆動することで、一対のチェーン１２及び支持ローラ１１は両スプロケット１３、１４間を周回する。 In 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.
　この支持ローラ１１の周回経路の上面側が、フィルタロッド３の軸線方向と交差する向きに当該フィルタロッド３を搬送する搬送経路を規定している。詳しくは、フィルタロッド３は一対の支持ローラ１１間にて当該支持ローラ１１の軸線方向と平行に配置される。つまり、支持ローラ１１は、一対の支持ローラ１１間にてフィルタロッド３を保持するポケットを規定している。当該ポケットは、各支持ローラ１１は回転自在であることで、フィルタロッド３を当該フィルタロッド３の軸線回りの回転を許容しながら支持している。 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. Specifically, 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.
　搬送ユニット１０は、さらに各チェーン１２の周囲を覆うカバー１５、１５を有している。そして、図２に示すように、各カバー１５内の上部と下部には、チェーン１２の周回経路を湾曲される上部ガイド１６、下部ガイド１７が配設されている。 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.
　上部ガイド１６は下部が下に凸の略円弧状をなしており、チェーン１２の周回経路上部にてチェーン１２を上側から下方に向けて押圧している。当該上部ガイド１６下面は、搬送方向中央部分における一定の範囲において曲率がロータリナイフ３１と同心円状の曲率をなした円弧部１６ａを有している。上部ガイド１６の当該円弧部１６ａから端部に向けては、滑らかに水平方向に延びた形状となっている。従って、チェーン１２は上部ガイド１６の下面に沿って湾曲した周回経路となり、搬送経路には円弧部１６ａに対応してロータリナイフ３１の曲率と同心円状の曲率で湾曲した湾曲部が規定されている。 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. .
　また、下部ガイド１７は上に凸の略円弧状をなしており、チェーン１２の周回経路下部にてチェーン１２を下側から上方に向けて押圧している。当該下部ガイド１７は、チェーン１２が緩まないようにテンションをかけるためのものであり、図示しないが当該テンションを調整するために上下動可能な機構を有している。 Further, 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.
　切込ユニット３０及び回転付与ユニット２０は、両カバー１５の上部に跨って設けられている。 The cutting unit 30 and the rotation imparting unit 20 are provided across the upper portions of the covers 15.
　切込ユニット３０は、両カバー１５上部に設けられた軸受部３２と、軸受部３２にて端部が軸支された回転軸３３と、当該回転軸３３に設けられた４つのロータリナイフ３１とを有している。 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.
　各ロータリナイフ３１は回転軸３３上にてそれぞれ間隔をあけて設けられている。各ロータリナイフ３１は回転軸３３を中心とする円板状であり、外周に刃先３１ａを有している。そして、図示しないアクチュエータにより回転軸３３が回転することで、各ロータリナイフ３１が回転し、刃先３１ａは円軌道を描く。 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 | tip 31a draws a circular orbit.
　また、回転付与ユニット２０は、両カバー１５間に跨って延びる一対のクロスメンバ２１と、当該一対のクロスメンバ２１間に延びる複数のローリングブロック２２（押圧部材）とを有している。 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.
　一対のクロスメンバ２１は、両カバー１５上部において切込ユニット３０を挟むように、搬送方向の上流側と下流側とに設けられている。 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.
　各ローリングブロック２２は各ロータリナイフ３１間に配設され、それぞれの端部はクロスメンバ２１と連結している。そして、ローリングブロック２２は、図３に示すように、下に凸の円弧状をなしている。そして、上述の上部ガイド１６と同様に、ローリングブロック２２の下面には、搬送方向中央部分における一定の範囲において曲率がロータリナイフ３１と同心円状の曲率をなした円弧部２２ａを有している。またローリングブロック２２の当該円弧部２２ａから端部に向けては滑らかに水平方向に延びた形状となっている。ただし、ローリングブロック２２の下面は、上部ガイド１６の下面よりも上側に位置している。また、当該ローリングブロック２２の下面にはローレット加工が施されている。 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.
　ローリングブロック２２の下面と、支持ローラ１１との間隔はフィルタロッド３の直径よりも僅かに短く、そのためローリングブロック２２の下面にフィルタロッド３が搬送されると、当該フィルタロッド３はローリングブロック２２の下面により支持ローラ１１に向けて押圧される。これにより、フィルタロッド３は搬送過程にて、上部に抵抗を受ける一方、下部は回転自在な支持ローラ１１に支持されていることから、図３で視ると時計回りに、回転が付与される。特にローリングブロック２２の円弧部２２ａの範囲では、フィルタロッド３は少なくとも１回転する。 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. As a result, 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. . In particular, in the range of the arc portion 22a of the rolling block 22, the filter rod 3 rotates at least once.
　またローリングブロック２２の円弧部２２ａは、ロータリナイフ３１の最下部分よりも上側に位置しており、ロータリナイフ３１の刃先３１ａがローリングブロック２２の下面よりも下方に一部突出している。このローリングブロック２２の下面から刃先３１ａが突出している範囲が、搬送経路中においてフィルタロッド３にスリットを形成する切込範囲となる。当該切込範囲は、フィルタロッド３が少なくとも１回転する範囲である。そして、当該切込範囲は、湾曲部の範囲に含まれることからロータリナイフ３１の刃先３１ａの移動軌跡に沿った搬送経路の範囲となる。 Further, 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 | route along the movement locus | trajectory of the blade edge | tip 31a of the rotary knife 31. FIG.
　より詳しくは、図４の拡大図に示すように、切込範囲では、湾曲部を搬送されるフィルタロッド３の軸線が描く移動軌跡Ａが刃先３１ａの移動軌跡と同心円状の曲率で沿っており、当該刃先３１ａの移動軌跡とフィルタロッド３の軸線の移動軌跡Aとはフィルタロッド３の半径Ｒより短く且つ一定の間隔Ｉを有している。つまり、ロータリナイフ３１により形成されるスリット４の深さはフィルタロッド３の半径Ｒより短く一定であることから、スリット形成後のフィルタロッド３には真円状の芯部３ａが形成される。 More specifically, as shown in the enlarged view of FIG. 4, in the incision range, 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.
　以上のように構成されたスリット形成装置１によるスリット形成方法について以下説明する。 The slit forming method by the slit forming apparatus 1 configured as described above will be described below.
　まず、スリット形成装置１の搬送ユニットにおいて、一対の支持ローラ１１間に規定されるポケットにより、搬送ドラム２からフィルタロッド３を受け取る。そして、支持ローラ１１はチェーン１２とともに、駆動スプロケット１３による回転駆動力を受けて搬送方向（図３の白抜矢印）に移動することで、フィルタロッド３を搬送する。 First, 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).
　フィルタロッド３は、ローリングブロック２２により回転が付与されて、搬送経路の湾曲部に入る。さらにフィルタロッド３は回転しつつ切込範囲に入ることで、ローリングブロック２２の下面から突出したロータリナイフ３１の刃先３１ａと接触し、スリットが形成されていく。当該フィルタロッド３は１回転以上した後に切込範囲を抜け、湾曲部も抜けて、フィルタシガレット製造装置における次の工程へと搬送される。 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.
　本実施例におけるスリット形成装置１では、スリット４を形成するためにロータリナイフ３１を用いるのに対して、搬送ユニット１０としてチェーンコンベアを用いて、搬送経路に当該ロータリナイフの曲率と同心円状の曲率を有する湾曲部を形成することで、刃先３１ａの移動軌跡に沿った切込範囲を実現している。つまり、フィルタロッド３の搬送しつつスリット４を形成することができる。 In the slit forming apparatus 1 in the present embodiment, 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. 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.
　そして当該切込範囲では、フィルタロッド３が少なくとも１回転し、刃先３１ａの移動軌跡とフィルタロッド３の軸線の移動軌跡Aとがフィルタロッド３の半径Ｒより短く且つ一定の間隔Ｉを有していることから、均一な深さのスリット４を形成し、フィルタロッド３に真円状の芯部３ａを確実に残すことができる。 In the cutting range, 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.
　また、本実施例でのスリット形成装置１では、搬送ユニット１０として支持ローラ１１及びチェーン１２を周回させるチェーンコンベアを使用することで、上部ガイド１６を設けるだけの容易な構成で、搬送経路中に刃先３１ａに沿った湾曲部を形成することができている。 Further, in the slit forming apparatus 1 according to the present embodiment, 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.
　さらに、チェーン１２の噛合ローラ１２ａと同軸に連結された一対の支持ローラ１１により、フィルタロッド３を支持するポケットを規定することで、フィルタロッド３の搬送と、当該フィルタロッド３を回転自在に支持することを両立させることができる。そして、搬送経路の近傍に固定したローリングブロック２２によりフィルタロッド３を押圧するだけで、容易にフィルタロッド３を回転させることができる。特にローリングブロック２２の下面にローレット加工を施すことで、滑ることなく確実にフィルタロッドに回転を付与することができる。 Further, by defining a pocket for supporting the filter rod 3 by a pair of support rollers 11 that are coaxially connected to the meshing roller 12a of the chain 12, 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 | route. In particular, by applying knurling to the lower surface of the rolling block 22, it is possible to reliably apply rotation to the filter rod without slipping.
　これらのことから本実施例におけるスリット形成装置１及びスリット形成方法によれば、フィルタロッド３の搬送を止めることなくスリット４を形成することができ、当該スリット４における深さの均一性及び芯部の真円性を高め、 フィルタロッド３の品質を向上させることができる。 Therefore, according to the slit forming apparatus 1 and the slit forming method in the present embodiment, 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.
　次に本発明の第２実施例について説明する。 Next, a second embodiment of the present invention will be described.
　図５に第２実施例のスリット形成装置４０の断面図が示されており、以下同図に基づき説明する。なお、第１実施例と同じ要素については同じ符号を付し説明を省略する。 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. In addition, the same code | symbol is attached | subjected about the same element as 1st Example, and description is abbreviate | omitted.
　第２実施例のスリット形成装置４０では、切込ユニット５０として、第１実施例の４つのロータリナイフ３１に代えて４つのカッター５１（図５では１つのみ示す）を用いてフィルタロッド３にスリットを形成する。当該カッター５１は、例えばチェーンソーのように、角丸長方形のガイド板５２の外周に、複数の刃を連ねてなるソーチェーン５３が巻き付けられている。そして、図示しないアクチュエータによりソーチェーン５３をガイド板５２の外周に沿って周回させる。従って、本実施例のカッター５１では、ソーチェーン５３の刃先５３ａが水平方向に長い角丸長方形の移動軌跡を描く。 In the slit forming apparatus 40 according to the second embodiment, as 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. In the cutter 51, 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.
　そして、搬送ユニット６０は、第１実施例と同様に支持ローラ１１及びチェーン１２、スプロケット１３、１４、カバー１５、下部ガイド１７（図示せず）を有しているが、上部ガイド１６を廃して、直線状の搬送経路を規定している。 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.
　回転付与ユニット７０は、カバー１５上部にカッター５１を挟んで一対のクロスメンバ７１が設けれ、当該クロスメンバ間に複数のローリングブロック７２（図５では１つのみ示す）が設けられている。当該ローリングブロック７２は直線上の搬送経路に対応して下面が直線状をなしている。 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.
　そして、ローリングブロック７２の下面はカッター５１の刃先５３ａの最下部分よりも上側に位置しており、当該刃先５３ａがローリングブロック７２の下面よりも下方に一部突出している。このローリングブロック７２の下面から刃先５３ａが突出している範囲が、第２実施例における切込範囲となる。当該切込範囲では、フィルタロッド３は少なくとも１回転し、フィルタロッド３の軸線の移動軌跡が水平方向に延びた刃先５３ａの移動軌跡に沿って直線上をなす。さらに、当該切込範囲では、搬送されるフィルタロッド３の軸線の移動軌跡と、刃先５３ａの移動軌跡との間隔がフィルタロッド３の半径より短く且つ一定である。 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. In the cutting range, 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.
　このように構成された第２実施例のスリット形成装置４０は、第１実施例と同様の効果を奏することができ、特に搬送経路を直線上にできるため搬送ユニット６０及び回転付与ユニット７０を簡単な構成とすることができる。 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. In particular, since 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.
　続いて第３実施例について説明する。
　図６に第３実施例のスリット形成装置の断面図が示されており、以下同図に基づき説明する。
　第３実施例のスリット形成装置８０では、切込ユニット９０として、第２実施例のカッター５１を湾曲させた湾曲カッター９１を用いてフィルタロッド３にスリットを形成する。当該湾曲カッター９１は、円弧状に湾曲した角丸長方形のガイド板９２の外周に、複数の刃を連ねてなるソーチェーン９３が巻き付けられている。そして、図示しないアクチュエータによりソーチェーン９３をガイド板９２の外周に沿って周回させる。従って、本実施例の湾曲カッター９１では、ソーチェーン９３の刃先９３ａが円弧状に湾曲しつつ、角丸長方形の移動軌跡を描く。 Next, a third embodiment will be described.
FIG. 6 shows a sectional view of the slit forming apparatus of the third embodiment, which will be described below.
In the slit forming apparatus 80 of the third embodiment, 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. In the bending cutter 91, 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. Then, 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.
　そして、搬送ユニット１００は、支持ローラ１０１及びチェーン１０２が１つの駆動スプロケット１０３に掛け回されている。従って、当該搬送ユニット１００は円弧状の搬送経路を規定している。 In the transport unit 100, 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.
　回転付与ユニット１１０は、搬送経路の曲率と同心円状の曲率で湾曲したローリングブロック１１１（図５では１つのみ示す）が設けられている。なお、湾曲カッター９１も搬送経路の曲率と同心円状の曲率で湾曲している。 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.
　ローリングブロック１１１の湾曲部分の内側面は湾曲カッター９１の刃先９３ａよりも外側に位置しており、当該刃先９３ａがローリングブロック１１１の内側面よりも内側に一部突出している。このローリングブロック１１１の内側面から刃先９３ａが突出している範囲が、第３実施例における切込範囲となる。当該切込範囲では、フィルタロッド３は少なくとも１回転し、フィルタロッド３の軸線の移動軌跡が湾曲した刃先９３ａの移動軌跡に沿っている。さらに、当該切込範囲では、搬送されるフィルタロッド３の軸線の移動軌跡と、刃先９３ａの移動軌跡との間隔がフィルタロッド３の半径より短く且つ一定である。 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. In the cutting range, 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. Furthermore, in the incision range, 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.
　このように構成された第３実施例のスリット形成装置８０は、第１実施例と同様の効果を奏することができ、特に搬送経路を円弧状とすることで全体構成をコンパクトにすることができる。
　なお、第３実施例の変形例として、支持ローラ１０１、チェーン１０２、及び駆動スプロケット１０３からなる搬送ユニット１００に代えて、搬送ドラム２と同様な回転ドラムを用いてもよい。 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. .
As a modification of the third embodiment, 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.
　その他、本発明は上記実施例に制約されるものではなく、種々の変形が可能である。 In addition, the present invention is not limited to the above embodiment, and various modifications are possible.
　例えば、上記各実施例では、スリットを形成する棒状部材をフィルタロッド３としているが、棒状物品はこれに限られるものではなく、他の喫煙物品や、喫煙物品以外の棒状部材にも本発明を適用可能である。 For example, in each of the above embodiments, 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.
　また上記各実施例では、フィルタロッドに４箇所のスリットを形成すべく、４つのロータリナイフ３１やカッター５１、９１を用いているが、スリットの数や当該スリットを形成する手段はこれに限られない。 In each of the above embodiments, four rotary knives 31 and cutters 51 and 91 are used to form four slits in the filter rod. However, the number of slits and means for forming the slits are limited to this. Absent.
　　１、４０、８０　スリット形成装置
　　３　フィルタロッド
　　３ａ　芯部
　　４　スリット
　１０、５０、１００　搬送ユニット（搬送部）
　１１、１０１　支持ローラ（支持部、ローラ部材）
　１２、１０２　チェーン
　１２ａ　噛合ローラ
　１３、１０３　駆動スプロケット
　１４　従動スプロケット
　１５　カバー
　１６　上部ガイド
　１６ａ　円弧部
　１７　下部ガイド
　２０、７０、１１０　回転付与ユニット（回転付与部）
　２１、７１　クロスメンバ
　２２、７２、１１１　ローリングブロック（押圧部材）
　２２ａ　円弧部
　３０　切込ユニット（切込部）
　３１　ロータリナイフ
　３１ａ、５３ａ、９３ａ　刃先
　３２　軸受部
　３３　回転軸 1, 40, 80 Slit forming device 3 Filter rod 3a Core portion 4 Slit 10, 50, 100 Conveying unit (conveying unit)
11, 101 Support roller (support portion, roller member)
12, 102 Chain 12a Engagement roller 13, 103 Drive sprocket 14 Driven sprocket 15 Cover 16 Upper guide 16a Arc portion 17 Lower guide 20, 70, 110 Rotation imparting unit (rotation imparting portion)
21, 71 Cross member 22, 72, 111 Rolling block (pressing member)
22a Circular arc part 30 Cutting unit (cutting part)
31 Rotary knife 31a, 53a, 93a Cutting edge 32 Bearing part 33 Rotating shaft

Claims (7)

  1. 　棒状部材の周面に前記棒状部材の周方向に沿ったスリットを形成するスリット形成装置において、
    　前記棒状部材の軸線方向と交差する向きに前記棒状部材を搬送する搬送経路を規定し、前記棒状部材を支持し且つ前記搬送経路に沿って移動する支持部を含む、搬送部と、
    　前記搬送経路の近傍にて固定され、前記棒状部材の搬送過程にて前記支持部と協働して前記棒状部材を軸線回りに回転させる回転付与部と、
    　移動する少なくとも１つの刃先を含み、前記棒状部材が軸線回りに回転しているときに、前記棒状部材に前記スリットを形成する切込部と、を備え、
    　前記搬送経路は、前記棒状部材が少なくとも一回転する範囲を、前記スリットを形成する切込範囲と規定し、
    　当該切込範囲では、搬送される前記棒状部材の軸線の移動軌跡が前記切込部の刃先の移動により描かれる移動軌跡に沿っており、搬送される前記棒状部材の軸線の移動軌跡と前記切込部の刃先の移動により描かれる移動軌跡との間隔が前記棒状部材の半径より短い、
    スリット形成装置。     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 conveyance path defines a range in which the bar-shaped member rotates at least once as a cut range for forming the slit,
    In the incision range, the movement trajectory of the axis of the rod-shaped member to be conveyed is along the movement trajectory drawn by the movement of the cutting edge of the notch, and the movement trajectory of the axis of the rod-shaped member to be conveyed and the cut The distance from the movement locus drawn by the movement of the cutting edge of the insert portion is shorter than the radius of the rod-shaped member,
    Slit forming device.
  2. 　前記支持部は前記棒状部材を、当該棒状部材の軸線回りにおける回転を許容しながら支持する、
    請求項１記載のスリット形成装置。     The support portion supports the rod-shaped member while allowing rotation around the axis of the rod-shaped member.
    The slit forming apparatus according to claim 1.
  3. 　前記支持部は、前記棒状部材と平行に延び且つ前記搬送経路に沿って互いに離間した回転自在な一対のローラ部材を有し、これらローラ部材はローラ部材間にて前記棒状部材を保持するポケットを規定する、
    請求項２記載のスリット形成装置。     The support portion includes a pair of rotatable roller members extending in parallel with the rod-shaped member and spaced apart from each other along the conveyance path, and these roller members have pockets for holding the rod-shaped member between the roller members. Regulate,
    The slit forming apparatus according to claim 2.
  4. 　前記搬送部は、前記ローラ部材の両端に、それぞれ同一側のローラ部材端部同士を繋ぐ、一対のチェーンを更に含む、
    請求項３記載のスリット形成装置。     The transport unit further includes a pair of chains that connect the roller member ends on the same side to both ends of the roller member,
    The slit forming apparatus according to claim 3.
  5. 　前記回転付与部は、搬送される前記棒状部材を前記支持部に向けて押圧する押圧部材を含み、
    　前記棒状部材は前記押圧部材と前記支持部との間に挟まれた状態で、自身の軸線回りに回転する、
    請求項１から４のいずれか一項に記載のスリット形成装置。     The rotation applying unit includes a pressing member that presses the rod-shaped member to be conveyed toward the support unit,
    The rod-shaped member rotates around its own axis while being sandwiched between the pressing member and the support portion.
    The slit formation apparatus as described in any one of Claim 1 to 4.
  6. 　前記切込部は、円板の外周に前記刃先を有するロータリナイフを含み、
    　前記搬送経路は、前記ロータリナイフの前記刃先の曲率と同心円状の曲率で湾曲した湾曲部を含み、
    　前記切込範囲は前記湾曲部に含まれる、
    請求項１から５のいずれか一項に記載のスリット形成装置。     The notch includes a rotary knife having the cutting edge on the outer periphery of a disc,
    The transport path includes a curved portion curved with a curvature concentric with the curvature of the cutting edge of the rotary knife,
    The incision range is included in the curved portion,
    The slit formation apparatus as described in any one of Claim 1 to 5.
  7. 　棒状部材の周面に前記棒状部材の周方向に沿ったスリットを形成するスリット形成方法において、
    　前記棒状部材の軸線方向と交差する向きに前記棒状部材を搬送する搬送経路を規定し、支持部により前記棒状部材を支持し且つ前記搬送経路に沿って移動させる、搬送工程と、
    　前記棒状部材の搬送過程にて前記支持部と協働して前記棒状部材を軸線回りに回転させる回転付与工程と、
    　移動する少なくとも１つの刃先により、前記棒状部材が軸線回りに回転しているときに、前記棒状部材に前記スリットを形成する切込工程と、を備え、
    　前記搬送経路は、前記棒状部材が少なくとも一回転する範囲を、前記スリットを形成する切込範囲と規定し、
    　当該切込範囲では、搬送される前記棒状部材の軸線の移動軌跡が前記切込部の刃先の移動により描かれる移動軌跡に沿っており、搬送される前記棒状部材の軸線の移動軌跡と前記切込部の刃先の移動により描かれる移動軌跡との間隔を前記棒状部材の半径より短くする、
    スリット形成方法。
          In the slit forming method of forming a slit along the circumferential direction of the rod-shaped member on the circumferential surface of the rod-shaped member,
    A conveying step of defining a conveying path for conveying the rod-shaped member in a direction intersecting with the axial direction of the rod-shaped member, supporting the rod-shaped member by a support portion, and moving along the conveying path;
    A rotation imparting step of rotating the rod-shaped member around an axis in cooperation with the support portion in the conveying process of the rod-shaped member;
    A cutting step for forming the slit in the rod-shaped member when the rod-shaped member is rotating around an axis by at least one cutting edge that moves, and
    The conveyance path defines a range in which the bar-shaped member rotates at least once as a cut range for forming the slit,
    In the incision range, the movement trajectory of the axis of the rod-shaped member to be conveyed is along the movement trajectory drawn by the movement of the cutting edge of the notch, and the movement trajectory of the axis of the rod-shaped member to be conveyed and the cut The distance from the movement locus drawn by the movement of the cutting edge of the insert portion is shorter than the radius of the rod-shaped member,
    Slit formation method.
PCT/JP2015/059417 2015-03-26 2015-03-26 Slit forming device and slit forming method WO2016151848A1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109757764A (en) * 2019-01-22 2019-05-17 常德三友机械制造有限公司 Filter stick receiving device

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 (en) * 1991-12-27 1993-07-20 Japan Tobacco Inc Carrying apparatus of cigarette

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 (en) * 1991-12-27 1993-07-20 Japan Tobacco Inc Carrying apparatus of cigarette

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109757764A (en) * 2019-01-22 2019-05-17 常德三友机械制造有限公司 Filter stick receiving device
CN109757764B (en) * 2019-01-22 2023-12-05 常德三友机械制造有限公司 Filter rod receiving device

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