JP2002058463A - Apparatus for returning cut tobacco in cigarette-making machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus for returning cut tobacco in a cigarette- making machine, capable of enabling the off-specification waste cut tobacco discharged from a cut tobacco-feeding part to be effectively reused without reducing the quality of the cigarette. SOLUTION: This apparatus for returning the cut tobacco in the cigarette- making machine has a conveying passage 10 for receiving and conveying the off-specification waste cut tobacco discharged from the feeding part 2 of the cut tobacco, and the conveying passage 10 has a cutting device 24 and a separating device 28 inserted therein in order. The cutting device 24 cuts the waste cut tobacco, and the separating device 28 separates the waste cut tobacco having a largeness within a prescribed range from the cut tobacco after the cutting. The separated cut tobacco is returned as the returning cut tobacco through a returning passage 30 to the cut tobacco-feeding part 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for reducing tobacco applied to a cigarette making machine.

[0002]

2. Description of the Related Art A cigarette making machine firstly forms a cut tobacco layer by adsorbing cut tobacco supplied from a cut tobacco feeding section onto a tobacco band. The chopped tobacco layer is fed from the tobacco band onto the wrapper, and then continuously wrapped in the wrapper to form a tobacco rod, and the tobacco rod is cut to a predetermined length at a cutting section of the cigarette maker. .

[0003] As described above, the cut tobacco is adsorbed by the tobacco band, so that the cut tobacco must have a size in a predetermined range in order to ensure stable adsorption. Therefore, the chopping tobacco feeder selects a large chopped tobacco whose size is out of the predetermined range from the chopped tobacco, and discharges it from the chopped tobacco feeding section as an exclusion cut. Note that most of the exclusion cuts are stem portions of tobacco leaves, but also include lamina portions.

[0004] Since the above-mentioned exclusion engraving is caused by the improper engraving, it can be sufficiently reused. For example, Japanese Patent Application Laid-Open No. S59-106282 discloses that the exclusion engraving is reused. A tobacco feed is disclosed. This known tobacco feeding unit removes, that is, collects the stem cutting, pulverizes the collected stem cutting with a crushing device, and returns it to the storage tank of the cutting tobacco feeding unit as a reduction cutting. .

[0005]

Since the above-mentioned re-use type feeding section for crushing crushing crushes crushing crushing with a crusher, the size of reduction crushing varies, and cigarette shredded tobacco is generated. The refining cuts outside the predetermined range, which are not suitable as above, are also returned to the storage tank of the feeding unit. In addition, during the operation of the pulverizer, the heat of friction, that is, the heat of reduction is overheated due to frictional heat. Such overheating deteriorates the taste of the reduction, and eventually causes the quality of the cigarette to deteriorate.

[0006] The present invention has been made based on the above-mentioned circumstances, and an object of the present invention is to make it possible to effectively reuse an exclusion stamp as a reduction stamp, and to further reduce the taste of the reduction stamp. An object of the present invention is to provide a tobacco reduction device for a manufacturing machine.

[0007]

In order to achieve the above object, a shredded tobacco reduction device according to the present invention extends from a shredded tobacco feeding section of a cigarette making machine, and from the cut tobacco feeding section. A transport path for transporting the exclusion cuts discharged as nonstandard, a cutting device provided on the transport path for cutting the exclusion cuts, and a cutting path provided downstream of the cutting apparatus on the transport path; A sorting device that sorts only the exclusion engravings having a size within a predetermined range from among the engraved exclusion engravings and sends the selected exclusion engravings out of the transport path as a reduction engraving; It has a return path to return to the sending unit.

[0008] According to the above-mentioned tobacco reduction apparatus, the exclusion engraving is cut without being overheated by the engraving apparatus, and thereafter, only the desired reduction engraving obtained by being sorted by the sorting apparatus is fed. Returned to the department. In the case of the tobacco reduction apparatus according to the present invention according to claim 2, the cutting apparatus includes a cylindrical housing having an inlet and an outlet for the exclusion cut at both ends, and is rotatable coaxially within the cylindrical housing. A plurality of engraving disks having a predetermined gap between the outer peripheral surface and the inner peripheral surface of the cylindrical housing, and having engraving blades at a predetermined pitch interval on the outer peripheral surface thereof. As for the pitch interval of the cutting blades, the cutting disk on the entrance side is larger than that on the exit side.

According to such an engraving apparatus, when the exclusion engraved inserted from the entrance passes sequentially between the inner peripheral surface of the cylindrical housing and the engraved disks on the entrance side and the exit side,
It is cut without being overheated by the cutting blade of the cutting disk. In the case of the shredded tobacco reduction device of the present invention according to claim 3, the sorting device is disposed so as to be vertically overlapped,
An upper and lower sieve-type sorting feeder is provided for sequentially sorting and dropping the rejections according to the size during the transfer of the rejection, and the lower-type sieve-type sorting feeder is connected to the return path.

According to such a sorting apparatus, the cut exclusion cuts are first supplied to the upper sieving type sorting feeder, and the upper sieving type sorting feeder transfers the received excising cuts in the process of transferring the received exclusion notches. The exclusion notch whose size is equal to or less than a predetermined upper limit value is dropped on a lower sieve-type sorting feeder. And, in the process of transferring the received exclusion stamp, the lower sieving type sorting feeder
Drop an exclusion notch smaller than a predetermined lower limit, and
The remaining engraving is supplied to the return path as reduction engraving.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIG. 1, a cigarette making machine is provided with a chopped tobacco feeding section 2 which cuts a tobacco band 4 from a storage tank (not shown).
, And the tobacco band 4 adsorbs the tobacco cut on its lower surface in a layered manner. Thereafter, the cut tobacco adsorbed on the tobacco band 4 in a layered form is adjusted to a predetermined thickness by the trimming disk 5 and formed as a cut tobacco layer.

Thereafter, with the running of the tobacco band 4, the cut tobacco layer travels toward the winding section 6 of the cigarette making machine, where it is supplied from the tobacco band 4 onto the wrapping paper W. The wrapping paper W is run by the garniture tape 8 together with the cut tobacco layer T. In this running process, the cut tobacco layer T becomes a tobacco rod R continuously wrapped by the wrapping paper W, and thereafter, the tobacco rod R becomes a cigarette maker. Is cut at predetermined lengths by the cutting section.

The above-mentioned tobacco feeding section 2 incorporates an air separation separator, a so-called Winnower device (not shown), between the tobacco storage tank and the tobacco band 4. here,
The Winnower device treats a large and heavy tobacco out of a predetermined range that is not suitable for adsorption to the tobacco band 4 or winding of the tobacco rod R from among the tobacco fed to the tobacco band 4 as a nonstandard exclusion. The rejected cut is discharged to the outside of the tobacco feeding section 2. In the tobacco feeding section 2, the cut tobacco removed by the trimming process of the trimming disc 5 is also discharged once to the outside of the tobacco feeding section 2. However, the cut tobacco must conform to the standard. After that, it is returned to the storage tank of the tobacco feeding section 2.

Thereafter, the above-mentioned wind separation process is performed in the cut tobacco feeding section 2, and the non-standard exclusion cuts discharged from the cut tobacco feeding section 2 are supplied to a cut tobacco reduction apparatus.
It is processed by this reduction device. The reduction device has a transport path 10 for excluding and extending from the tobacco feeding section 2, and this transport path 10 connects between the tobacco feeding section 2 and the dust collection device 12. More specifically, the transport path 10 has a receiving port 13 at the upstream end of the conveying path, and an air blowing pipe 14 extends from the receiving port 13. The blast pipe 14 is connected to a tangential separator 18, and the tangential separator 18 is connected to the dust collection device 12 via a blast pipe 20 and a booster fan 22.

When the booster fan 22 is driven, an air flow is generated from the receiving port 13 to the tangential separator 18 through the air pipe 14, and the air flow is removed from the receiving port 13 through the tangential separator 18. Is blown through the blower pipe 14. Here, an engraving device 24 is inserted in the middle of the air supply pipe 14, and the engraving device 24 further engraves the exclusion engraved supplied from the receiving port 13, and accordingly, the tangential separator 18. Is supplied with the exclusion stamp after the stamping.

The tangential separator 18 separates the exclusion cut after cutting from the air. As a result, fine powder during the exclusion cut is separated, and this fine powder is passed through the air pipe 20 and the booster fan 22 to remove the dust. It is discharged to 12. on the other hand,
The exclusion engraved captured by the tangential separator 18 is supplied to a sorting device 28 via an air rocker 26. The selection device 28 selects the exclusion engravings having a predetermined size from the cut exclusion engravings, and supplies the selected exclusion engravings to the return path 30 as reduction engravings. The return path 30 has a receiving port 32 for the reduction cut, and is connected to the storage tank of the cut tobacco feeding section 2. More specifically, the return path 30 includes a chute 34 having a receiving port 32. Therefore, the reduction cuts obtained by the sorting by the sorting device 28 are returned to the cut tobacco feeding section 2 via the return path 30 and used for forming the tobacco rod R described above.

A wind pipe 36 extends from the sorting device 28, and is connected to the dust collection device 12. The blower pipe 36 has a receiving port 38 for receiving an exclusion stamp other than the reduction stamp, and discharges the received exclusion stamp to the dust removing and collecting device 12. Note that the dust collection device 12 includes a fan (not shown) for generating an air flow in the air pipe 36.

As shown in FIG. 2, the engraving device 24 includes a vertically arranged cylindrical housing 40.
Has an inlet 42 and an outlet 44 on the outer periphery of its upper and lower walls, respectively. The inlet 42 is connected to the receiving port 13 via an upstream portion of the air duct 14, and the outlet 44 is connected to the tangential separator 18 via a downstream portion of the air duct 14.

A rotary shaft 4 is provided at the center of the cylindrical housing 40.
The upper and lower ends of the rotating shaft 46 pass through the upper and lower walls of the cylindrical housing 40, and are rotatably supported by these end walls, respectively. On the other hand, a motor 48 is arranged near the cylindrical housing 40 in parallel. The motor 48 is supported by the cylindrical housing 40 and has an output shaft protruding upward. Motor 48
Pulleys 50, 52 are provided on the upper end of the output shaft and the rotary shaft 46.
These pulleys are connected to each other via an endless drive belt 54. Therefore, the rotating shaft 46 receives the driving force from the motor 48 and can rotate in one direction.

A plurality of engraving disks are arranged in the cylindrical housing 40. These engraving discs have a rotating shaft 4
6 is attached at a predetermined interval, and rotates together with the rotating shaft 46. More specifically, the engraving disk includes two upper engraving disks 56 located on the inlet 42 side of the cylindrical housing 40 and two lower engraving disks 58 located on the outlet 44 side thereof.

Circular cores 60 each having a smaller diameter than the engraving disks are arranged between the engraving disks, and these cores 60 surround the rotary shaft 46 in a state where the rotation of the rotary shaft 46 is allowed. And is fixed to the inner peripheral surface of the cylindrical housing 40 through the inner wall. As shown in FIG. 3, a predetermined gap is secured between the outer periphery of the upper engraved disk 56 and the inner peripheral surface of the cylindrical housing 40, and a large number, for example, 40, are provided on the outer periphery of the upper engraved disk 56. Are provided at equal intervals in the circumferential direction. These engraving blades 64 are serrated, and their cutting edges, that is,
The carbide tip 66 is inclined downward as shown in FIGS. 4 and 5, and the inclination angle α is, for example, 20 °.

Further, as shown in FIG. 3, the upper cutting disk 56 has two break chips 68 on its upper surface.
The break chips 68 are attached so as to overlap with the cutting blades 64 that are spaced apart in the diameter direction of the upper cutting disk 56. On the other hand, as shown in FIG. 6, the lower cutting disk 58 also has a predetermined gap between the outer periphery thereof and the inner peripheral surface of the cylindrical housing 40,
This gap is smaller than the gap on the upper cutting disk 56 side. That is, the lower cutting disk 58 has a slightly larger diameter than the upper cutting disk 56. A saw blade 70 is also provided on the outer periphery of the lower cutting disk 58. The number of the cutting blades 70 is, for example, 50, and the pitch between the cutting blades 70 is smaller than the pitch between the cutting blades 66 on the upper cutting disk 56. The cutting edge of the engraving blade 70 is also formed from a carbide tip 72, and as shown in FIGS. 7 and 8, the cemented carbide tip 72 circumferentially adjacent to the lower engraving disc 58 is Are arranged in a zigzag manner.

The inner peripheral surface of the cylindrical housing 40 is provided with reusable pockets 61 at positions corresponding to the engraving discs at each stage to prevent clogging of the exclusion cuts. A viewing window 63 is also provided at a position spaced apart in the diameter direction.
According to the above-described engraving device 24, the exclusion engraved introduced from the upstream portion of the air pipe 14 into the cylindrical housing 40 through the inlet 42 thereof is caused by the rotation of the engraved disk 56 at the uppermost stage.
It is blown radially outward and falls through the gap between the inner peripheral surface of the cylindrical housing 40 and the engraving disk 56 onto the lower engraving disk 56. Engraved by the engraving blade 64. Then, such exclusion engraving is repeated on the next engraving disk 56 and the two lower engraving disks 58 in the same manner. Is blown toward the tangential separator 18 through the downstream portion of the blower pipe 14 from the outlet 44 of the blower.

As is apparent from the above description, the pitch interval of the cutting blades 64 in the upper cutting disk 56 is larger than the pitch interval of the cutting blades 70 in the lower cutting disk 58. It can pass through the gap between 56 and the inner peripheral surface of the cylindrical housing 40 without being caught, and is thereby roughly cut by the cutting blade 64. In addition, since the cutting edges of the engraving blades 64 are all inclined downward, the rejected engravings after engraving can be smoothly dropped. Further, since two break chips 68 are fixed to the upper cutting disk 56, these break chips 68 sweep out and remove the exclusion notches accumulated between the cylindrical housing 40 and the upper cutting disk 56. This prevents clogging of the exclusion cuts on the upper cut disk 56.

The rejected cuts that have passed through the upper cutting disk 56 are further finely cut by the cutting blades 70 of these cutting disks 58 when sequentially passing through the lower cutting disk 58. Here, the pitch interval of the engraving blade 70 is
Although the pitch is smaller than the pitch interval of No. 4, when the rejected cut reaches the lower cut disc 58, the rejected cut has already been cut by the upper cut disc 56. There is no clogging of the exclusion stamp. Furthermore, since the cutting edges of the cutting blades 70 are arranged in a zigzag manner when viewed in the circumferential direction of the cutting disk 58, the rejection can be effectively cut.

As described above, since the engraving device 24 performs engraving without crushing the exclusion engraving by the engraving disks 56 and 58 in each stage, overheating of the engraving disks 56 and 58, ie, the exclusion engraving is prevented. It does not make the taste worse. Further, since the engraving device 24 is inserted into the air supply pipe 14, an air supply airflow from the inlet 42 to the outlet 44 is constantly generated in the cylindrical housing 40, and this air supply airflow is also eliminated. Helps prevent overheating.

As shown in FIG. 7, the sorting device 28 has a receiving port 74 connected to the air rocker 26 of the tangential separator 18, and the receiving port 74 is connected to an inlet of an upper sorting feeder 76. A lower sorting feeder 78 is disposed immediately below the upper sorting feeder 76, and a collection feeder 80 is located immediately below the lower sorting feeder 78.
Are further arranged. These feeders 76, 78,
Each of the vibration feeders 80 is vertically overlapped with each other, and vibrates integrally by a vibrator 82.

The upper and lower sorting feeders 76 and 78 have both transfer surfaces formed as sieve surfaces, and the mesh of the sieve surfaces is larger in the upper sorting feeder 76 than in the lower sorting feeder 78. Further, the outlets of the upper sorting feeder 76 and the collecting feeder 80 are narrowed in the same direction, and the outlets of the lower sorting feeder 78 are narrowed in the opposite direction. Therefore, as is clear from FIG. 9, the upper sorting feeder 78 and the collection feeder 80.
And the exit of the lower sorting feeder 78 are left and right shifted.

Below the outlets of the upper sorting feeder 78 and the collecting feeder 80, a receiving port 38 of the air pipe 36 is arranged, and below the outlet of the lower sorting feeder 78, a receiving port 32 of the return path 30 is arranged. I have. According to the above-described sorting device 28, the rejection cut after the cutting supplied through the receiving port 74 is first performed by the upper sorting feeder 76.
And is transported by the sorting feeder 76 toward its outlet. In this transfer process, of the rejected cuts, the rejected cuts smaller than the mesh of the screen of the upper sorting feeder 76 fall through the mesh to the lower sorting feeder 78, and the remaining cuts are received from the outlet. It is dropped into the port 38 and discharged to the dust collection device 12 through the air supply pipe 36.

The exclusion notch that has fallen into the lower sorting feeder 78 is also transferred toward its outlet, and in this transfer process,
Only exclusion cuts of a size that do not pass through the mesh of the sieve surface are dropped as reduction cuts from the outlet to the receiving port 32 and then returned to the cut cigarette feeder 2 through the return path 30. Here, the reduction cuts obtained by sorting by the upper and lower sorting feeders 7678 have a length of 1.5 to 4 mm.
Is suitable for the supply to the tobacco band 4 and the winding of the tobacco rod R described above. As a result, the rejected cuts removed from the tobacco feeding section 2 can be effectively reused, and since the return cuts are not overheated by the cutting device 24 as described above, the taste is deteriorated. Without
The use of the reduction stamp does not reduce the quality of the cigarette.

The small exclusion notch falling from the sieve surface of the lower sorting feeder 78 is received by the collection feeder 80,
Then, it is dropped into the receiving port 38 from the outlet. The present invention is not limited to the above-described embodiment. For example, specific structures of the engraving device 24 and the sorting device 28 can be variously changed.

[0032]

As described above, according to the tobacco reduction apparatus according to the first aspect of the present invention, non-standard exclusions discharged from the tobacco feeding section of the cigarette manufacturing machine are cut without overheating. Then, during the exclusion engraving after the engraving, only the exclusion engravings having a size within a predetermined range are returned to the tobacco feeding section. improves.

According to the engraving device and the sorting device of the reduction device according to the second and third aspects, the engraving of the exclusion engraving and the selection of the exclusion engraving after the engraving can be effectively performed.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing a cut tobacco reduction device according to an embodiment.

FIG. 2 is a partially cutaway front view of the engraving device of FIG. 1;

FIG. 3 is a plan view showing an upper cutting disk of the cutting device of FIG. 2;

FIG. 4 is an enlarged perspective view of a cutting blade in an upper cutting disk.

FIG. 5 is a side view of the upper cutting disk of FIG. 4;

FIG. 6 is a plan view showing a lower cutting disk of the cutting device of FIG. 2;

FIG. 7 is an enlarged perspective view of a cutting blade in a lower cutting disk.

FIG. 8 is a side view of the lower cutting disk of FIG. 7;

FIG. 9 is a perspective view showing the sorting device of FIG. 1 with a part cut away.

[Explanation of symbols]

 2 Tobacco feeding section 10 Transport path 24 Cutting device 28 Sorting device 30 Return path 40 Cylindrical housing 56 Upper cutting disk 58 Lower cutting disk 76 Upper sorting feeder 78 Lower sorting feeder 80 Collection feeder

Claims (3)

[Claims] 1. A transport path extending from a tobacco feeder of a cigarette making machine and transporting an exclusion stamp discharged from the tobacco feeder as nonstandard, and provided on the transport path, An engraving device for engraving, provided only on the transport path downstream of the engraving device, and sorting out only the exclusion engravings having a size within a predetermined range from among the engraved exclusion engravings. A cigarette manufacturing machine, comprising: a sorting device that sends the rejected cuts out of the transport path as return cuts; and a return path that returns the reduced cuts from the sorting device to the cut tobacco feeding unit. Tobacco reduction device. 2. The engraving device comprises: a cylindrical housing having an inlet and an outlet for the exclusion at each end; and a rotatable coaxially disposed inside the cylindrical housing, and an outer peripheral surface of the cylindrical housing and the cylindrical housing. A plurality of engraving disks having a predetermined gap between the inner peripheral surface and a plurality of engraving disks having engraving blades at a predetermined pitch interval on the outer peripheral surface; 2. The cigarette reduction apparatus of a cigarette manufacturing machine according to claim 1, wherein the engraved disk on the entrance side is larger than the engraved disk of (1). 3. The screening device according to claim 1, wherein the sorting device includes upper and lower sieve-type sorting feeders that are arranged one above the other and that sequentially sort and drop the exclusion cuts according to the size during transfer of the exclusion cuts. The cigarette reduction device for a cigarette manufacturing machine according to claim 1, wherein a mold sorting feeder is connected to the return path.