JPH05137553A - Cutting and separating system for rodlike article - Google Patents

Abstract

PURPOSE:To prevent breakage, at a separatory wall, of the cut surfaces of the two half rods by cutting a rodlike article on its conveying route through rotation of a circular knife and, concurrently, by putting insertion elements into the spaces between the respective cut surfaces and the knife. CONSTITUTION:A charcoal filter rod Fc is received onto the groove on the outer peripheral surface of a conveying drum 24 and cut into two half rods position of a circular knife 30. At this time, knife clamps 33 as gap-forming means are gradually put into the spaces between the respective cut surfaces and the knife. On reaching a separatory wall, the space between said two half rods is further widened.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rod-shaped article cutting and separating apparatus suitable for cutting and separating a filter rod (for cigarette, for example) as a rod-shaped article.

[0002]

2. Description of the Related Art Generally, a cigarette is equipped with a filter, but there are various types of filters of this type, and one of them is a so-called dual filter. .. This dual filter is configured by sequentially arranging a charcoal filter plug and a plain filter plug from the cigarette side, for example. The plain filter plug is made only of a filter material made of, for example, acetate fiber, while the charcoal filter plug is made by mixing particles of activated carbon into the filter material.

The above-mentioned dual filter is manufactured by a dual filter attachment as disclosed in, for example, Japanese Patent Laid-Open No. Hei 1-132368, and is attached to a cigarette. Briefly describing the dual filter attachment, this dual filter attachment includes a pair of hoppers, and one hopper stores a large number of charcoal filter rods having a length multiple times that of the charcoal filter plug. The other hopper stores a large number of plain filter rods having a length that is a multiple of that of the plain filter plug. The charcoal filter rod discharged from one of the hoppers is designed to be carried on the carrying route. At this time, the charcoal filter rod is carried while its posture is such that its axis is orthogonal to the carrying direction. Has become.

A rotatable round knife is arranged in the middle of the conveying path.
The conveyed charcoal filter rod is cut into equal lengths to obtain two rod halves. Furthermore, a separation guide is arranged on the downstream side of the round knife in the transport path, and the separation guide has an end located upstream in the transport direction as a pointed end. Therefore, when the rod halves are conveyed from the round knife side, the tip of the separation guide penetrates between the cutting surfaces of these rod halves, and then the cutting surface of each rod half follows the side surface of the separation guide. By transporting the rod halves as guided, a predetermined gap, that is, a gap corresponding to the length of the plain filter rod is secured between the rod halves.

Thereafter, in the process of transporting the rod halves on the transport path, one plane filter rod is fed from the other hopper so as to be positioned coaxially between the rod halves. Further, by cutting each of the pair of rod halves and the plain filter rod into a plurality of equal parts, individual charcoal filter plugs are obtained from each rod half, while the plain filter rods are separated from each other. Double length plugs will be individually obtained having twice the length of the plain filter plug.

The individual charcoal and plain plugs obtained from each rod half and rod as described above are:
After that, a double-length dual filter in which the charcoal filter plugs are located on both sides of the double-length plug, respectively, is obtained so that they are aligned so as to be positioned forward and backward on the transport path in the transport direction. become. After the cigarettes are respectively positioned on both sides of the double-length dual filter, these double-length dual filters and two cigarettes are connected by chip paper, so that cigarettes with two filters, that is, individual cigarettes with two filters. A tandem cigarette is obtained in which filtered cigarettes are connected in opposite directions to each other, and thereafter, by cutting from the center of the tandem cigarette, that is, the center of the double plug,
Individual filtered cigarettes will be obtained.

[0007]

By the way, when the charcoal filter rod is cut by the round knife as described above, a round gap is formed between the two rod halves, that is, between the cut surfaces of the rod halves. Only the gap corresponding to the thickness of the knife can be secured. Since the round knife that cuts the filter rod is usually very thin, the gap is also small.

Therefore, when the two rod halves are conveyed to the separation guide, it becomes very difficult for the tip of the separation guide to accurately penetrate into the gap between the rod halves. Therefore, the separation guide cannot reliably separate the two rod halves at a desired distance, or even if the two rod halves are separated, the cut surface of one rod half is separated. There is a problem that it is crushed by the guide.

Such a problem becomes remarkable particularly in the case of a rod-shaped article made of a relatively flexible material such as a filter rod. That is, in the case of a rod-shaped article having this kind of elasticity, even if the rod-shaped article is cut with a round knife, the gap between the cut surfaces may be closed due to the elastic deformation of the rod-shaped article. The present invention has been made based on the above-mentioned circumstances, and the object thereof is to secure a rod-shaped half body obtained by cutting the rod-shaped article even if the article has elasticity. Another object of the present invention is to provide a cutting / separating device for a rod-shaped article which can be separated into pieces and which does not damage the cut surface of the rod-shaped half body.

[0010]

A bar-shaped article cutting / separating device of the present invention comprises a conveying means having a conveying path for a rod-shaped article, and this conveying means makes an axis of the rod-shaped article orthogonal to the conveying path. The rod-shaped article can be conveyed in this state. In the middle of the transport path, a cutting means for rod-shaped articles, that is, a circular knife is rotatably arranged,
This round knife is capable of cutting the conveyed rod-shaped article into rod-shaped halves each having a predetermined length by its rotation.

The cutting and separating apparatus of the present invention is provided with a gap forming means for forming a predetermined gap between the cutting surface of the rod-shaped article and the round knife when the rod-shaped article is cut by the round knife. This gap forming means has an insertion element that penetrates between the cutting surface of the rod-shaped article and the round knife when the round knife is cut into the rod-shaped article. Further, the cutting / separating device is provided with a separating means for further expanding the interval between the rod-shaped halves after the rod-shaped halves have passed through the round knife. It has a separating wall which is located on the side and extends along the conveying path, the separating wall being able to penetrate into a space including the gap between the rod-shaped halves.

[0012]

According to the above-described rod-shaped article cutting / separating device, when the rod-shaped article on the conveying path is conveyed to the round knife,
The rotation of the round knife cuts the rod-shaped article into two rod-shaped halves. At the time of this cutting, the insertion element of the gap forming means gradually enters between the cutting surface of the rod-shaped article and the round knife, and by this intrusion, the obtained rod-shaped half body is cut in the axial direction on the transport path. Displace. Therefore, thereafter, when the two rod-shaped halves pass through the round knife, a predetermined gap is formed between these rod-shaped halves, and this gap includes a gap corresponding to the thickness of the insertion element. Becomes

When the two rod-shaped halves are further conveyed, the separation wall invades toward the space between the rod-shaped halves, and the space between the rod-shaped halves is separated by utilizing this separation wall. It will be further expanded.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENT Referring to FIG. 1, an overall dual filter attachment is shown. The dual filter attachment includes a base plate 10 which is vertically arranged, and a first hopper 12c is provided on an upper portion of the pace plate 10.

Although not shown, a large number of charcoal filter rods Fc having a predetermined length are stored in the first hopper 12c, and the charcoal filter rods Fc are acetate fibers in this embodiment. Particles of activated carbon are added to the filter material consisting of.
A pair of supply rollers 14a and 14b are arranged rotatably in opposite directions to each other on the lower left side of the first hopper 12c as viewed in FIG. These supply rollers 14a, 14b
Is positioned so that a part of the peripheral surface thereof is exposed in the first hopper 12c, whereby the pair of supply rollers 14a and 14b are part of the bottom wall of the first hopper 12c. .. Between the pair of supply rollers 14a and 14b,
A supply passage 13 for the charcoal filter rod Fc is defined, and in the vicinity of the outer open end of the supply passage 13,
As seen in FIG. 1, the charcoal filter rod Fc is continuously guided by air blowing from a direction orthogonal to the paper surface. Therefore, when the charcoal filter rod Fc reaches the outer open end of the supply passage 13, the charcoal filter rod Fc is rotated by the pair of supply rollers 14a and 14b to pass through the common passage 13 and the first hopper 12c.
Will be supplied within. In FIG. 1, reference numeral 15
Indicates a motor for rotating the supply rollers 14a and 14b.

A delivery passage 16 extends from the lower right side of the first hopper 12c, and a feed roller 18 is rotatably located in the first hopper 12c near the inner end of the delivery passage 16. The feed roller 18, which is arranged, rotates counterclockwise as viewed in FIG. 1, which causes the charcoal filter rod F in the first hopper 12c.
One c is sent out into the delivery passage 16. Further, as is clear from FIG. 1, a part of the delivery passage 16 is composed of a belt conveyor 20.
The feed passage 18 is driven by the feed roller 18
The charcoal filter rod Fc sent in is smoothly guided toward the outer end in the delivery passage 16, that is, its outlet, and is discharged from this outlet.

An auxiliary tray 22 accommodating the charcoal filter rod Fc is arranged as needed near the right side of the first hopper 12c. The lower part of the auxiliary tray 22 and the first hopper 12c are separated from each other. , Are connected to each other by the extension portion 19 of the first hopper 12c. Further, as shown in FIG.
A second hopper 12p is provided on the left side of the hopper 12c. In the second hopper 12p, a large number of plain filter rods Fp, which are different in kind from the charcoal filter rod Fc and have a predetermined length, are stored. The plain filter rod Fp is made of, for example, only the filter material described above.

The second hopper 12p has a structure basically similar to that of the first hopper 12c, and the plain filter rod Fp is also blown up to the second hopper 12p by the air blowing as in the case of the charcoal filter rod Fc. It is supposed to be guided. Therefore, in FIG. 1, the members of the second hopper 12p having the same function as the members of the first hopper 12c are designated by the same reference numerals, and the description thereof will be omitted.

The outlet of the delivery passage 16 of the first hopper 12c faces downward, and the first conveying drum 24 is arranged immediately below this outlet. The first transport drum 24 is
The outer peripheral surface is rotatably supported by the base plate 10 so as to face the outlet of the delivery passage 16, and is rotated clockwise at a predetermined peripheral speed as shown by an arrow in FIG. ing.

The outer peripheral surface of the first conveying drum 24 defines the conveying path of the charcoal filter rod Fc. That is, as shown in an enlarged manner in FIG. 2, the first conveying drum 24 is a grooved drum having a large number of first conveying grooves 26 on its outer peripheral surface, and the first conveying groove 26 is , First
The transport drum 24 is formed at equal intervals in the circumferential direction. The first carrying groove 26 is a charcoal filter rod Fc.
Has a semi-circular cross-section capable of receiving the, and its axis is parallel to the rotation axis of the first transport drum 24.

Therefore, when the charcoal filter rod Fc in the first hopper 12c falls from the outlet of the delivery passage 16, the charcoal filter rod Fc is supplied into the first conveying groove 26 of the first conveying drum 24, and then, First
It is transported as the transport drum 24 rotates. Therefore, the first
By the rotation of the transport drum 24, each time the empty first transport groove 26 of the first transport drum 24 passes immediately below the outlet of the delivery passage 16, the charcoal filter rod Fc is sequentially supplied to the first transport groove 26. It will be. The length of the first carrying groove 26, that is, the width of the first carrying drum 24 is sufficiently wider than the length of the charcoal filter rod Fc.

As shown in FIG. 1, the right side portion of the outer peripheral surface of the first transport drum 24 is covered with a transport guide 28. That is, the transport guide 28 has an arc shape extending from the outlet of the delivery passage 16 along the outer peripheral surface of the first transport drum 24, whereby the charcoal filter rod Fc transports on the first transport drum 24. When
The transport guide 28 prevents the charcoal filter rod Fc from falling out of the first transport groove 26.

As shown in FIG. 2, the transport guide 28 is located upstream of the first guide 28a and downstream of the first guide 28a in the transport direction of the charcoal filter rod Fc. The second guide 28b follows the first guide 28a. First guide 28
A first round knife 30 as a cutting means is arranged near a. As shown in FIG. 3, the outer peripheral edge of the first circular knife 30, that is, the cutting edge circle, has a first guide 28a.
And penetrates into an annular knife groove 31 formed at the center of the outer peripheral surface of the first transport drum 24. Here, the knife groove 31 is sufficiently deeper than the depth of the first conveying groove 26, and its width is also the first round knife 30.
It is set wide enough compared to the thickness of. Therefore, as is apparent from FIG. 3, not only the cutting edge circle of the first round knife 30 but also the outer peripheral edges of the pair of knife clamps 33 of the first round knife 30 penetrate into the knife groove 31.

The pair of knife clamps 33 is a disk member attached to the center of both sides of the first round knife 30, and the outer peripheral edge of each knife clamp 33 has the first round knife 3.
It has a wedge shape that is continuous with the corresponding surface of 0. That is, the outer peripheral edge of each knife clamp 33 is formed as a tapered surface 33a. Further, in the case of this embodiment, the outer peripheral circles of the tapered surfaces 33a of the pair of knife clamps 33 are:
The charcoal filter rod Fc held in the first carrying groove 26 is inserted into the knife groove 31 so as to come into contact with the carrying locus circle drawn by the axis of the charcoal filter rod Fc. This means that the first conveying groove 26
The charcoal filter rod Fc in the first round knife 30
When passing through the first circular knife 30 and being cut by the first round knife 30, the tapered surfaces 33a of the pair of knife clamps 33 are cut.
It means that the outer circumference circle of (1) penetrates to the axis of the charcoal filter rod Fc.

The pair of knife clamps 33 described above is used.
Is also used to attach the first round knife 30 to the rotary shaft 35. That is, as shown in FIG.
The round knife 30 is attached to the rotary shaft 35 via a clamp disk 37 and an attachment bolt 39 while being sandwiched by a pair of knife clamps 33 from both sides.

In the case of this embodiment, the first circular knife 3
0 consists of a very thin disc with a wall thickness of about 0.3 mm, whereas the knife clamp 33 has a wall thickness of about 3 mm. On the other hand, the above-mentioned first guide 28
As is clear from FIG. 3, a is provided with, for example, four outer guide pieces 34, and these outer guide pieces 34 extend along the outer peripheral surface of the first transport drum 24 as is clear from the above description. It has a curved arc shape and is arranged at a predetermined interval along the first transport groove 26. Therefore, the first circular knife 30 has
It passes between the two outer guide pieces 34 located on the inner side and enters the knife groove 31 of the first transport drum 24.

Further, as shown in FIG. 2, a pair of side guide pieces 41 is provided on the upstream side of the first guide 28a as viewed in the conveying direction of the charcoal filter rod Fc. The side guide pieces 41 have an arc shape curved along the outer peripheral surface of the first transport drum 24, similarly to the outer guide pieces 34, and the pair of side guide pieces 41 are located near the outlet of the delivery passage 16. To the position immediately before the position where the charcoal filter rod Fc in the process of conveyance and the pair of knife clamps 33 in the first round knife 30 interfere with each other. Further, the pair of side guide pieces 41 are provided on both sides of the outer guide piece 34 and on the outer guide piece 3 respectively.
It is positioned closer to the outer peripheral surface of the first transport drum 24 than the No. 4 sensor.

The distance between the downstream end portions of the pair of side guide pieces 41 is equal to the length of the charcoal filter rod Fc as shown in FIG. The distance between the upstream end portions of the side guide pieces 41 is widened toward the outlet of the delivery passage 16 described above. Furthermore, the above-mentioned first round knife 30 is positioned at the center between the side guide pieces 41.

FIG. 4 is an exploded view of a portion of the transport path corresponding to the transport guide 28 on the first transport drum 24. In FIG. 4, the outer guide piece 34 described above is Omitted. Therefore, the charcoal filter rod Fc supplied from the outlet of the delivery passage 16 to the one first conveying groove 26 of the first conveying drum 24 is guided by the pair of side guide pieces 41 as the first conveying drum 24 rotates. Then, the charcoal filter rod Fc is conveyed between the side guide pieces 41, whereby the charcoal filter rod Fc is positioned with respect to the first round knife 30.

The second guide 28b of the transport guide 28 is provided with a guide plate 43 which is curved so as to cover the outer peripheral surface of the first transport drum 24.
Has a function similar to that of the outer guide piece 34 of the first guide 28a described above. In the center of the inner surface of the guide plate 43, as shown in FIG. 4, a separation wall 36 is arranged. As shown in FIG. 5, the separation wall 36 is curved along the guide plate 43 and extends in the carrying direction of the charcoal filter rod Fc.

The upstream end of the separation wall 36 is tapered toward the first guide 28a as viewed in the transport direction, and the tip 36a of the separation guide 36 is located at the center between the side guide pieces 41 described above. It is located near the edge circle of the first round knife 30. The separation wall 36 is attached to the inner surface of the guide plate 43 via a pair of mounting bolts (not shown), and therefore the separation wall 36 is attached.
Is provided with a screw hole 45 for a mounting bolt.
In the case of this embodiment, as shown by expanding the separation wall 36 in FIG. 6, the separation wall 36 is formed with a recess 47 so as to leave a pair of protrusions 49 and a peripheral edge in the center thereof. A screw hole 45 is formed in each protrusion 49. The pair of protrusions 49 are separated from each other in the longitudinal direction of the separation wall 36 with a predetermined gap. Therefore, from the outside of the guide plate 43,
The separation wall 36 is fixedly attached to the guide plate 43 by inserting a mounting screw through the guide plate 43 and screwing the mounting screw into the screw hole 45 of the separation wall 36.

Further, a large number of ejection holes 32 are formed on the outer surface of the separation wall 36, and these ejection holes 32 are communicated with the recess 47. As is apparent from FIGS. 5 and 6, the ejection holes 32 are formed on the outer surface of the separation wall 36 with a predetermined space therebetween. Here, the ejection holes 32 are formed at the tips of the separation walls 36. It should be noted that it is also formed on the outer surface of the part.

On the other hand, although not shown in detail, in the guide plate 43, the recess 4 of the separating wall 36 is formed on one side.
7 is formed with a connection hole 51, which is, on the other hand, connected to a pneumatic source (not shown) via a connection hose 53 shown in FIG.
Therefore, when compressed air is supplied from the air pressure source to the recess 47 of the separation wall 36 via the connection hose 53 and the connection hole 51, the compressed air of the recess 47 is discharged from each of the ejection holes 32 to the separation wall 36. Will be ejected toward the side of.

The thickness of the separating wall 36 is determined by the diameter of the charcoal filter rod Fc. Here, when the diameter of the charcoal filter rod Fc is 8 mm, the thickness T1 of the separating wall 36 is 4 mm and its bottom is 4 mm. Wall thickness T2
Is set to 1 mm. Further, in the case of this embodiment, the inner diameter of the ejection hole 32 is 1.5 mm. Further, the second guide 28b is also provided with a pair of side guide pieces 53, as in the case of the first guide 28a. These side guide pieces 53 are arranged on both sides of the separation wall 36, and the distance between the separation wall 36 and each side guide piece 53 is at least the total length of the charcoal filter rod Fc and the plain filter rod Fp. It is set longer than half.

Here, the treatment of the charcoal filter rod Fc supplied from the outlet of the delivery passage 16 to the first conveying groove 26 of the first conveying drum 24, that is, the cutting and separation thereof, will be described. When the charcoal filter rod Fc is supplied to one of the first transport grooves 26 of the first transport drum 24, the charcoal filter rod Fc rotates in the first transport drum 24 while being held in the first transport groove 26. Will be transported. By such conveyance, when the charcoal filter rod Fc passes through the first round knife 30, the rotation of the first round knife 30 cuts the charcoal filter rod Fc into two equal parts, as shown in FIG. Two charcoal rod halves Fh are obtained.
That is, the charcoal filter rod Fc is the first round knife 3
When reaching 0, this charcoal filter rod Fc
Since both ends thereof are conveyed while being guided by the pair of side guide pieces 41 described above, the center of the charcoal filter rod Fc is always positioned at the position of the first round knife 30.

The first round knife 30 is completely cut into the charcoal filter rod Fc, and this rod F
Charcoal filter rod Fc
That is, when the two charcoal rod halves Fh are further conveyed, between the cutting surface of these charcoal rod halves Fh and the first round knife 30, as shown in FIG. The tapered surface 33a of the clamp 33 gradually enters.

Tapered surface 3 of each knife clamp 33
The invasion of 3a causes the pair of charcoal rod halves Fh to be axially separated from each other in the first transport groove 26 by a predetermined distance. This means that, as shown in FIG. 8, as the charcoal filter rod Fc, that is, the charcoal rod half body Fh, is conveyed in the direction of the arrow in the figure, the taper of the knife clamp 33 with respect to this charcoal rod half body Fh. It is clear that the surface 33a gradually enters. In FIG. 8, the amount of penetration of the tapered surface 33a is shown by hatching in FIG. Thereafter, when the charcoal rod half body Fh is further conveyed and comes out of the knife clamp 33, the amount of penetration of the tapered surface 33a is reduced, whereby the knife clamp 33 is completely removed from the charcoal rod half body Fh. When exiting, the taper surface 33 is formed between the charcoal rod half Fh and the first round knife 30.
A gap corresponding to the maximum penetration amount of a will be formed. It should be noted that in FIG. 8, the transport path on the first transport drum 24 is shown linearly in order to facilitate drawing.

Therefore, when the charcoal filter rod Fc passes through the first round knife 30, the charcoal filter rod Fc is cut into two equal parts by the rotation of the first round knife 30, and the two charcoal rod halves Fh. After this, these charcoal rod halves Fh are shown in FIG.
, A pair of knife clamps 33 of the first round knife 30 separate them from each other by a predetermined distance. Here, as is clear from the above description, this distance corresponds to the length obtained by adding the two gaps and the thickness of the first round knife 30.

At the time when the two charcoal rod halves Fh are separated by the pair of knife clamps 33, both charcoal rod halves Fh have already come off the pair of side guide pieces 41, as is apparent from FIG. In the transport position,
This prevents the pair of side guide pieces 41 from interfering with the preliminary separation of the charcoal rod half body Fh. The function of the pair of knife clamps 33 that forms a gap between the charcoal rod halves Fh obtained by cutting becomes apparent from the shaded area in FIG.

After a predetermined space is formed between the two charcoal rod halves Fh as described above, when the charcoal rod halves Fh are further conveyed and reach the conveyance position of the separation wall 36, the charcoal rod half Fh is conveyed. The tip 36a of the separation wall 36 enters the space between the rod halves Fh. Here, as described above, since the large number of ejection holes 32 are formed on both side surfaces of the separation wall 36, the separation wall 36 enters between the two charcoal rod halves Fh.
When these charcoal rod halves Fh are transported, the respective charcoal rod halves Fh are compressed by the compressed air ejected from the ejection holes 32 of the separation wall 36, as shown in FIG. The inside is moved in the axial direction, and then abutted on the corresponding side guide piece 53 of the second guide 28b. In addition, the 1st conveyance groove 26 is abbreviate | omitted in FIG.

As a result, two charcoal rod halves F
When h is transported through the separating wall 36, the spacing between these charcoal rod halves Fh is further increased in the first transport groove 26, so that between the two charcoal rod halves Fh. , The above-mentioned plain filter rod F
An interval is secured that allows p to be positioned. Here, since the ejection holes 32 of the separation wall 36 are distributed up to the vicinity of the tip 36a, when the two charcoal rod halves Fh reach the tip 36a of the separation wall 36, these charcoal rod halves Fh are Immediately it is moved away from the separating wall 36 by compressed air, so that each charcoal rod half Fh does not come into contact with the separating wall 36.

Referring again to FIG. 1, below the first transport drum 24 described above, it is positioned slightly to the left of the first transport drum 24 and is in contact with the first transport drum 24. The second transport drum 38 is arranged. The second transport drum 38 is rotatably supported with respect to the base plate 10 like the first transport drum 24, but the second transport drum 38 is the first transport drum 24.
It is designed to rotate in the opposite direction.

Second conveying grooves 40 are formed on the outer peripheral surface of the second conveying drum 38 at equal intervals in the circumferential direction (see FIG. 2). The axes of the second transport grooves 40 are parallel to the rotation axis of the second transport drum 38, and the cross-sectional shape of the second transport grooves 40 is similar to that of the first transport groove 26. ing. The second transfer drum 38 is rotated while the second transfer groove 40 thereof is sequentially aligned with the first transfer groove 26 of the first transfer drum 24. In other words, assuming that the first and second conveying grooves 26, 40 are formed at the same intervals, the first and second conveying drums 24,
38 will rotate at the same peripheral speed.

Therefore, the first and second transport drums 24, 3
When 8 are rotated in the opposite directions as described above, 2 in the first transport groove 26 in the first transport drum 24 is rotated.
The charcoal rod half Fh of the book has its first carrying groove 26.
When it is aligned with the second transport groove 40 of the second transport drum 38, it is transferred from the first transport groove 26 into the second transport groove 40, and the two charcoal rod halves Fh are moved to the second transport groove 40.
The charcoal rod half body Fh between the first transport drum 24 and the second transport drum 38 is transported along the transport path defined on the transport drum 38 with the rotation of the second transport drum 38. Although not shown in detail, the lower end portion of the guide plate 43 in the second guide 28 described above is formed as a plurality of fork fingers 28c (see FIG. 2) in order to ensure the delivery. 28c penetrates into an annular groove 42a formed corresponding to the peripheral surface of the second transport drum 38.

Referring now to FIG. 9, there is shown a sectional view of the second conveying drum 38. As is apparent from this figure, the second conveying drum 38 is composed of a total of 6 drum disks. ing. Of these drum discs,
Two drum discs 38c located on both sides are used to convey the charcoal rod half Fh, and the annular grooves 42a are formed in these drum discs 38c, respectively.

On the other hand, the delivery passage 16 of the above-mentioned second hopper 12p has the second transport drum 3 as shown in FIG.
8 and the outlet end thereof is positioned directly above the outer peripheral surface of the second transport drum 38. That is, the plain filter rod Fp in the second hopper 12 p passes through the delivery passage 16 and the second transport groove 4 of the second transport drum 38.
0 is supplied one by one, but here, the plain filter rods Fp are two charcoal rod halves F supplied from the first transport drum 24 in the second transport groove 40.
It will be positioned between h. This is shown in FIG.
, Which shows the transport flow of the charcoal filter rod Fc and the plain filter rod Fp.

That is, the plane filter rod Fp has two drum discs 38 located at the center among the drum discs of the second conveying drum 38 shown in FIG.
It is supplied into the second conveyance groove 40 of p. Therefore, both the two charcoal rod halves Fh and one plane filter rod Fp supplied to the same second transport groove 40 of the second transport drum 38 are transported as the second transport drum 38 rotates. It will be.

A transport guide 44 is disposed along the outer peripheral surface of the second transport drum 38 in the substantially left half outside the second transport drum 38. The transport guide 44 basically has the same function as the transport guide 28 described above. A plurality of second round knives 46 are arranged outside the second transport drum 38. In the case of this embodiment, two of these second round knives 46 are provided for each of the two charcoal rod halves Fh and the plain filter rod Fp, so that there are a total of six second round knives 46. It has become a sheet.

The cutting edge of each second round knife 46 extends through the transport guide 44, and the cutting edge circle has the cutting edge circle of the first round knife 30.
Similar to the above case, it enters into the annular knife groove 55 (see FIG. 9) formed on the outer peripheral surface of the second transport drum 38. Further, regarding the arrangement of each second round knife 46, FIG.
These second round knives 4 as shown in the middle phantom line
6 are disposed in the circumferential direction of the second transport drum 38, that is, in the front-back direction when viewed in the transport direction.

Therefore, two charcoal rod halves Fh
When the charcoal rod halves Fh are conveyed by the second conveying drum 38 and the charcoal rod halves Fh pass through the corresponding four second round knives 46, each of the charcoal rod halves Fh is divided into three pieces by the second round knife 46. It is cut into two equal parts, which results in one charcoal rod half Fh to three charcoal filter tips F as shown in FIG.
A filter chip group Fcg composed of cc is formed. On the other hand, as for the plain filter rod Fp, as in the case of the charcoal rod half body Fh, when the plain filter rod Fp is conveyed by passing through the corresponding two second round knives 46, the plain filter rod Fp becomes 3 Cut into equal parts and cut from the plain filter rod Fp,
A filter chip group Fpg composed of three plane filter chips Fpc is formed.

Although not shown, when the charcoal rod half Fh and the plain filter rod Fp are conveyed toward the second round knife 46 on the second conveying drum 38, both ends of these rods are as described above. The second circular knife 46 is guided by a side guide piece similar to the pair of side guide pieces 41 (see FIG. 4).
The rods Fh and Fp are positioned with respect to.

As shown in FIG. 1, a shift drum 48 is arranged immediately below the second transport drum 38 so as to be in rolling contact with the second transport drum 38. The shift drum 48 is also rotatably supported with respect to the pace plate 10, and the rotation direction of the shift drum 48 is opposite to the rotation direction of the second transport drum 38. The displacement drum 48 comprises a grooved drum, as shown in detail in FIG.
The groove shape of No. 8 is the same as that of the first and second transport drums 24,
The groove shape of 38 is very different. That is, on the outer peripheral surface of the shift drum 48, a plurality of annular groove rows arranged side by side in the rotation axis direction of the shift drum 48 are formed, and these groove rows are the filters of the filter chip groups described above. The chips are provided corresponding to the chips Fcc and Fcp, respectively. Therefore, the groove row of the shift drum 48 is 9 in total.
It is provided individually.

As is apparent from FIG. 11, each groove row of the shift drum 48 is formed from a plurality of shift grooves 50 which are formed at equal intervals in the circumferential direction and which are formed parallel to the rotation axis of the shift drum 48. Although defined, the front groove wall of each shift groove 50 as viewed in the rotation direction of the shift drum 48 is inclined so as to widen the groove width along the circumferential direction of the shift drum 48.

Further, three groove rows corresponding to each filter chip group, here, for simplification of description, three groove rows corresponding to one charcoal filter chip group Fcg will be described. In a row of three grooves, FIG.
As is clear from 1, the rotational phases of the shift grooves 50 in each groove row are different from each other in the range of one pitch of the shift grooves 50. More specifically, when viewed as a whole of the three groove rows, the circumferential groove spacing of the shift groove 50 is the same as the groove spacing of the second carrying groove 40 of the second carrying drum 38.

On the other hand, as shown in FIG. 11, the second
The lower end of the transport guide 44 of the transport drum 38 has a fork shape and is inserted into a plurality of annular grooves formed on the outer peripheral surface of the shift drum 48. More specifically, although not shown, the annular groove is formed at the center of each groove row in the shift drum 48. Therefore, the annular groove and the fork fingers at the lower ends of the transport guides 44 are 9 in total. It is provided individually.

Then, referring to FIG. 12, the transport guide 4 corresponding to one charcoal filter chip group Fcg.
Four fork fingers 44a, 44b, 44c are shown, and the lengths of these fork fingers 44a, 44b, 44c are different from each other when viewed in the circumferential direction of the first transport drum 38. That is, as is apparent from FIG. 12, the fork finger 4
4a is the shortest, and the fork fingers 44b and 44c are long in this order. Furthermore, the fork fingers 44a, 44b, 44c
Of the inclined surfaces 52a, 52b, 5 are parallel to each other and inclined downward toward the inside of the shift drum 48.
2c (see FIG. 11).

On the other hand, in the substantially right half outside the shift drum 48, a transport guide 58 is arranged along the outer peripheral surface of the shift transport drum 48. The upper end portion of the transport guide 58 is also formed on the fork portion similarly to the lower end portion of the transport guide 44, and the fork fingers of this fork portion are respectively formed in the annular grooves formed on the outer peripheral surface of the second transport drum 38. It has been invaded. In this case, these annular grooves are, in addition to the above-described annular groove 42a of the second transport drum 38, an annular groove 42b between adjacent drum disks 38c of the second transport drum 38, and the drum disk 38.
An annular groove 42c formed in p and an annular groove 42d formed between the drum disks 38p.

The fork fingers of the fork portion of the transport guide 58 are paired with the fork fingers of the transport guide 44 described above. That is, FIG. 11 and FIG.
The fork fingers 44a, 44b, 4 of the transport guide 44.
4c and fork fingers 58 of the transport guide 58 which are respectively paired
Only a, 58b and 58c are shown. Here, these fork fingers 58a, 58b, 58c are positioned directly above the corresponding fork fingers 44a, 44b, 44c. Further, the tip end portions of the fork fingers 58a, 58b, 58c are formed so that the lengths thereof are sequentially reduced when viewed in the circumferential direction of the shift drum 48, and the lower surfaces of these tip end portions have corresponding fork fingers 44a, 44b, 44c. Slope 52
inclined surfaces 54a parallel to a, 52b and 52c,
It is formed as 54b and 54c. Inclined surfaces 52a and 54a, inclined surfaces 52b and 54b, inclined surface 52
By cooperating with each other, c and 54c respectively define a shift path for guiding each charcoal filter chip Fcc in one charcoal filter chip group Fcg from the second transport drum 38 to the shift drum 48.

Further, the shift drum 48 is rotated in the opposite direction to the second transport drum 38 as described above, but here, the shift drum 48 is the second transport drum 38.
The peripheral speed is three times the peripheral speed, that is, while the second conveyor drum 38 is rotated by the interval of one second conveyor groove 40, the shift drum 48 is the entire three groove rows described above. In view of the above, they are rotated by the distance of the three shift grooves 50.

Therefore, if the shift drum 48 has three rows of the shift grooves 50, the first filter chip group Fcg is rotated as the second transport drum 38 rotates.
Reaches the rolling contact area between the second transport drum 38 and the shift drum 48, 3 in the first filter chip group Fcg.
One of the charcoal filter chips Fcc (the frontmost charcoal filter chip Fcc as seen in FIG. 12) is guided to the inclined surface 54a of the fork finger 58a and the inclined surface 52a of the fork finger 44a described above. Then, it is guided from the second transport drum 38 to the shift drum 48, and is engaged and held in the shift groove 50 of the groove row located closest to the front in FIG. 12 among the three groove rows. After that, the charcoal filter chip Fcc is transported as the shift drum 48 rotates.

Thereafter, the remaining two charcoal filter chips Fcc, which were adjacent to the charcoal filter chip Fcc transferred to the shift drum 48, were
Inclined surfaces 54b and 54c of the fork fingers 58b and 58c, and inclined surfaces 52b and 52 of the fork fingers 44b and 44c.
It is sequentially delayed by c and is guided to the shift drum 48 side. That is, the remaining two charcoal filter chips Fcc are engaged with and held in the shift grooves 50 of the two groove rows adjacent to the groove row, respectively, one after another with a delay, thereby leading the shift drum 48 with rotation. The charcoal filter chips Fcc are sequentially conveyed after being delayed. Therefore, as shown in FIG. 10, the charcoal filter chip Fcc is conveyed while being displaced in the conveying direction as the shift drum 48 rotates.

The above operation is completed before the next charcoal filter chip group Fcg on the side of the second transport drum 38 reaches the rolling contact area, and each charcoal filter chip F of the next charcoal filter chip group Fcg.
The same is repeated for cc. It should be noted that in order to ensure that the charcoal filter chip Fcc is transported on the shift drum 48 and to transfer each filter chip to the third transport drum described later, each shift groove 50 is shown in FIG. When in the suction area S shown, the charcoal filter chip Fcc is held by suction air. That is, as shown in FIG.
An arc-shaped suction groove 57 is provided in a range corresponding to the suction area S described above, and the suction groove 57 is
Although not shown, it is formed on a fixed disk and is always connected to a negative pressure source (not shown). Then, one end of a suction hole 59 is opened at the bottom of each shift groove 50, and the other end of the suction hole 59 is located in the suction region S as the shift drum 48 rotates. At this time, the suction groove 57 is communicated. It should be noted that FIG. 11 shows only the suction hole 59 for one shift groove 50. By providing such a suction mechanism, even if the lower end of the transport guide 58 does not enter the third transport drum, the transfer of each filter chip from the shift drum 48 to the third transport drum is reliably performed. be able to.

While the above description is about the transfer of the three charcoal filter chips Fcc in one charcoal filter chip group Fcg from the second transport drum 38 to the shift drum 48, the other one is described.
The three charcoal filter chips Fcc in the filter chip group Fcg and the three plane filter chips Fpc in the plain filter chip group Fpg are also moved by the same shifting mechanism as in the case of the above-described charcoal filter chip Fcc. When it is moved from 38 to the shift drum 48, it is in a state of being displaced in the carrying direction. Therefore, on the shift drum 48, the charcoal filter chips Fcc of the two charcoal filter chip groups Fcg and the plane filter chip Fpc of the plane filter chip group Fpg are shown in FIG.
As indicated by 0, they are transported in a state in which they are displaced from each other. Here, as is apparent from FIG. 10, each filter chip conveyed in a shifted manner in each filter chip group is conveyed in synchronization with the corresponding filter chip in the adjacent filter chip group. In other words,
On the shift drum 48, one plane filter chip F is provided between two charcoal filter chips Fcc.
The pc is positioned, and moreover, these three filter chips Fcc, Fpc, Fcc are conveyed in a state where they are coaxially lined up.

Below the shift drum 48, the third transport drum 6 is provided so as to be in rolling contact with the shift drum 48.
0 is placed. The third transport drum 60 is rotatably supported with respect to the base plate 10 and is rotated in the direction opposite to the shift drum 48. In addition, reference numeral 62 shown in FIG. 1 rotatably supports the end portions of the rotating shafts located on the opposite side of the first to third conveying drums 24, 38, 60 and the shifting drum 48 from the base plate 10 side. It is a support arm for doing.

A plurality of third conveying grooves 80 (see FIG. 13) are provided on the outer peripheral surface of the third conveying drum 60 at equal intervals in the circumferential direction and parallel to the rotation axis of the third conveying drum 60. Are formed. The third transport groove 80 is the first transport groove 80 described above.
Similarly to the second transport grooves 26 and 40, the semi-circular cross section is formed. The third transfer drum 60 is rotated while its third transfer groove 80 is aligned with the shift groove 50 of any one of the groove rows in the shift drum 48.

Therefore, as the shift drum 48 rotates,
Two charcoal filter chips F that are sequentially transported
cc and the plane filter chip Fpc located between these charcoal filter chips Fcc are supplied from the shift drum 48 to the same third transfer groove 80 of the third transfer drum 60, and are transferred as the third transfer drum 60 rotates. To be done.

A transport guide 64 is arranged along the outer peripheral surface of the third transport drum 60 in the left half of the outer side of the third transport drum 60. The transport guide 64 includes charcoal and plane filters. It has a function of guiding the transportation of the chips Fcc and Fpc, respectively. Referring to FIG. 14, the inner surface of the transport guide 64 is shown in a developed state.
As shown in FIG. 14, on the inner surface of the conveyance guide 64, three pieces that extend along the outer peripheral surface of the third conveyance drum 60 and are separated from each other in the direction of the rotation axis of the third conveyance drum 60. The guide rail 66 is attached. These guide rails 66 bring the one charcoal filter chip Fcc and the plain filter chip Fpc supplied to the same third transfer groove 80 close to each other in the transfer process on the third transfer drum 60, as shown in FIG. Thus, it has a function of guiding these chips Fcc and Fpc. Further, the other charcoal filter chip Fcc on the same third conveyance groove 80 has the third conveyance drum 6
In the process of transport on 0,
It is moved in the transport groove 80. After that, the other charcoal filter chip Fcc is guided in a state of being in contact with the guide rail 66, and thus comes close to the one charcoal filter chip Fcc and the plain filter chip Fpc. Therefore, the guide rail 6
After that, the filter chips that have passed 6 are aligned and conveyed in three rows.

In FIG. 13 and FIG. 14, the jet area of the jet air is indicated by the symbol J. Here, the ejection mechanism will be described. As shown in FIG. 15, the ejection disc 6 is formed on one end surface of the third transport drum 60.
1 is fixedly attached, and this ejection disk 61
The ejection holes 63 are formed at the peripheral edge of the third conveyance groove 80 at the same intervals as the third conveyance grooves 80. Each ejection hole 63
Is always communicated with the corresponding third transport groove 80 at one end. Further, a control ring 67 is arranged outside the ejection disk 61. The control ring 67 is provided on the third transport drum 60, that is, the ejection disk 6
It is fixed irrespective of the rotation of No. 1 and therefore the ejection disk 61 is brought into sliding contact with the control ring 67. And the control ring 6
7 has an arcuate ejection groove 6 in an end surface on the ejection disk 61 side in a range corresponding to the ejection area J described above.
9 is formed. The ejection groove 69 is connected to a compressed air source (not shown) via a hose, and can be connected to the other end of each ejection hole 63 as the third conveying drum 60 rotates.

It should be noted that nine fork fingers are projected from the upper end of the above-mentioned transport guide 64, and these fork fingers have entered the annular grooves of the above-mentioned shift drum 48, respectively. Further, as shown in FIG. 1, a fourth transport drum 68, a second shift drum 70, and a fifth transport drum 72 are arranged below the third transport drum 60 so as to sequentially roll-contact with each other. ..

The fourth conveying drum 68 is a grooved drum similar to the above-mentioned conveying drum.
Is equipped with three third round knives 74. These third round knives 74 cut the charcoal filter chip Fcc, the plain filter chip Fpc, and the charcoal filter chip Fcc received from the third conveying drum 60 into equal parts during the conveying process, thereby cutting these filter chips. From, a total of four charcoal chip halves fc and two plain chip halves fp are formed respectively.

The charcoal chip half body fc and the plain chip half body fp formed in this manner are functionally similar to the second shift drum 70 and the transport guide 58 which are functionally similar to the shift drum 48. Transport guide 7
As shown in FIG. 10, the sheets are conveyed while being displaced from each other in the conveying direction by the first and second conveying drums 60 and having the same function as the third conveying guide 64 on the fifth conveying drum 72 corresponding to the third conveying drum 60. The guide 76 results in a doubled dual filter plug that is aligned and results in a plain chip half fp positioned between two charcoal chip halves fc. Since the second shift drum 70 has only to shift the two chip halves in the transport direction,
It is designed to rotate at twice the peripheral speed.

The dual filter plug thus obtained is supplied from the fifth conveying drum 72 to the grooved drum 78 on the winding machine side, and is combined with the two cigarettes on the grooved drum 78. And after this, the dual filter plug and the two cigarettes
Two pieces of dual filter cigarettes are connected to each other by chip paper, and further cut into equal parts to obtain individual dual filter cigarettes.

In FIG. 1, the fourth conveying drum 68
The transport guide 81 is similar to the transport guide 44, but the upper end of the transport guide 81 has a fork shape, and the fork fingers of the transport guide 81 penetrate the third transport drum 60.
On the other hand, the fork fingers at the lower end of the transport guide 64 shown in FIG. 14 have entered the fourth transport drum 68.

The present invention is not limited to the above-described embodiment, but various modifications can be made. For example, in one embodiment, the first round knife 30 and the pair of knife clamps 33 are configured as separate parts. However, as shown in FIG. In addition, the boss 90 having the same function as the pair of knife clamps 33 may be integrally formed. In addition, as shown in FIG. 17, the first round knife 30 has a boss portion 90.
The thickness may be gradually reduced from the end to the blade edge. In this case, the portion from the cutting edge of the first round knife 30 to the boss portion 90 has the same function as the above-mentioned tapered surface 33a. Further, in the case of one embodiment, if the thickness of the tapered surface 33a of the knife clamp 33 is sufficiently large, only one side of the first round knife 30 has the knife clamp 3
Even if 3 is attached, a sufficient space can be secured between the two charcoal rod halves Fh.

On the other hand, regarding the separation wall 36, in one embodiment,
Only the tip of the separation wall 36 has a triangular shape, but as shown by the chain double-dashed line in FIG.
The whole may have a triangular shape. Furthermore, in one embodiment, the separating / cutting device was used by incorporating it into the dual filter attachment, but the separating / cutting device of the present invention is not limited to the filter rod for cigarette as the stick-shaped article, and can be applied to stick-shaped articles made of various materials. Applicable.

[0076]

As described above, according to the rod-shaped article separating / cutting apparatus of the present invention, when the rod-shaped article is conveyed on the conveying path, the rod-shaped article is cut by the rotation of the round knife at the same time. The insertion element is made to penetrate between the cutting surface of the rod-shaped article and the round knife, so that when the rod-shaped article passes through the round knife and the insertion element, the rod-shaped article is cut into two rod-shaped halves, and , A space corresponding to the thickness of the insert element and the round knife will be formed between these rod-shaped halves. In this way, if a preliminary space is secured between the rod-shaped halves, when the two rod-shaped halves are subsequently conveyed to reach the separation wall, the separation wall will be separated between the rod-shaped halves. You can reliably enter the already formed space,
With this separating wall, the distance between the two rod-shaped halves can be further increased. As a result, since the cut surface of the rod-shaped half obtained by cutting is not crushed by the separation wall, it is possible to improve the quality and at the same time, a predetermined interval can be stably secured between these rod-shaped halves. After that, the post-processes for these rod-shaped halves, that is, the positioning of the rod-shaped halves is ensured, and the operation efficiency of the entire machine incorporating the separating / cutting device is also improved.

[Brief description of drawings]

FIG. 1 is a schematic front view of a dual filter attachment for a cigarette.

FIG. 2 is an enlarged front view of a first transport drum.

FIG. 3 is a side view showing a first round knife of the first transport drum.

FIG. 4 is a schematic view showing a developed transport path on the first transport drum.

FIG. 5 is a cross-sectional view showing the separation wall cut along the transport direction.

FIG. 6 is a view in which a separation wall is partially broken and developed.

FIG. 7 is a cross-sectional view of the separation wall.

FIG. 8 is a diagram for explaining the function of the knife clamp in the first round knife.

FIG. 9 is a sectional view of a second transport drum.

FIG. 10 is a diagram showing a processing procedure performed on charcoal and a plain filter rod.

FIG. 11 is an enlarged front view of the shift drum.

FIG. 12 is a plan view schematically showing the relationship between the fork portion of the second transport drum and the fork portion of the shift drum.

FIG. 13 is an enlarged front view of a third conveying drum.

FIG. 14 is a developed view of an inner surface of a transport guide of a third transport drum.

FIG. 15 is a cross-sectional view showing a part of a third transport drum.

FIG. 16 is a cross-sectional view showing a modified example of the first round knife.

FIG. 17 is a cross-sectional view showing another modified example of the first round knife.

[Explanation of symbols]

 12c 1st hopper 12p 2nd hopper 24 1st conveyance drum 26 1st conveyance groove 30 1st round knife 31 knife groove 33 knife clamp 33a taper surface 32 ejection hole 36 separation wall 38 2nd conveyance drum 40 2nd conveyance groove Fc charcoal Filter rod Fp Plain filter rod Fh Charcoal rod half Fcc Charcoal filter chip Fpc Plain filter chip fc Charcoal chip half fp Plain chip half

Claims (4)

[Claims] 1. A transporting means for transporting a rod-shaped article along a transporting path having a transporting path for the rod-shaped article, wherein the axis of the rod-shaped article is orthogonal to the transporting path, and a rotating means in the middle of the transporting path. Having a circular knife arranged so as to enable, by the rotation of the circular knife, a cutting means for cutting the conveyed rod-shaped article into rod-shaped halves each having a predetermined length, and when the round knife is cut into the rod-shaped article, With an insertion element penetrating between the cutting surface of the rod-shaped article and the round knife,
The insertion element displaces the rod-shaped halves on the conveying path in the axial direction, and when the rod-shaped article is conveyed through the round knives after that, a predetermined distance is provided between the rod-shaped halves and the round knife. When a rod-shaped half body is conveyed, it has a gap forming means that secures a gap and a separation wall that is located on the downstream side of the round knife in the conveyance path and extends along the conveyance path. A separating / separating device for a rod-shaped article, comprising: a separating means for expanding the interval between the rod-shaped halves on the transport path by the separation wall entering the space including the gap. 2. The insert element of a round knife, which is attached to the center of one surface of the circular knife, and comprises a wedge-shaped disk member whose outer peripheral edge is continuous with the surface of the circular knife. Item 2. A cutting and separating apparatus for a rod-shaped article according to Item 1. 3. The transport means is rotated in one direction and has an outer peripheral surface defined as the transport path, and the transport drum is formed at equal intervals on the outer peripheral surface of the transport drum. The cutting means is formed on the outer peripheral surface of the conveying drum so as to traverse the conveying groove, and has an annular groove that allows the cutting edge of the round knife to enter the conveying drum. Claim 1 characterized in that
Or the cutting and separating apparatus for the rod-shaped article according to item 2. 4. The separation means comprises air ejection means for ejecting air from the separation wall to the side of the conveyance path and for separating the rod-shaped half body from the separation guide.
4. The cutting and separating apparatus for a rod-shaped article according to any one of items 1 to 3.