WO2022019029A1 - Device and method for manufacturing reconstituted tobacco sheet - Google Patents

Abstract

This device for manufacturing a reconstituted tobacco sheet comprises: a die for discharging a reconstituted tobacco ingredient; and an extruder for　force-feeding the reconstituted tobacco ingredient to the die by rotation of a screw provided in the interior so as to be capable of rotation. The die has: a housing; a feed port that is formed in the housing and to which the reconstituted tobacco ingredient is fed; and a discharge port that is formed on one side surface of the housing and that discharges the reconstituted tobacco ingredient.

Description

Reconstructed tobacco sheet manufacturing equipment and manufacturing method

The present invention relates to a reconstructed tobacco sheet manufacturing apparatus and a manufacturing method.

Conventionally, a rolling method, a cast (slurry) method, and a papermaking method are known as a method for manufacturing a reconstructed tobacco sheet. These production methods are selected according to the amount of water contained in the reconstituted tobacco raw material. In addition, each of these manufacturing methods is realized by different reconstructed tobacco sheet manufacturing devices.

The rolling method is known to be particularly suitable for reconstituted tobacco raw materials containing 50% by volume or less of water. In the rolling method, the kneaded product of the reconstituted tobacco raw material is rolled and molded by a rotary roller, the thickness is adjusted, and then the kneaded product is dried by a dryer provided separately.

The cast (slurry) method is known to be particularly suitable for reconstituted tobacco raw materials containing 50% by volume or more of water. In the cast (slurry) method, the fluid of the reconstituted tobacco raw material is continuously spread on a rotary drum or belt conveyor, leveled to a desired thickness with a member called a blade, and then the rotary drum or It is peeled off from the belt conveyor and dried by a separately provided dryer (see, for example, Patent Document 1).

The papermaking method is known to be particularly suitable for reconstituted tobacco raw materials containing 80% by volume or more of water. In the papermaking method, the fluid of the reconstituted tobacco raw material is continuously spread on a liquid permeable belt conveyor, and after the water is removed by a squeezing roller and the desired thickness is obtained, a separately provided drying is performed. It is dried by the machine.

Special Table 2019-520036 Gazette

An object of the present invention is to provide a reconstructed tobacco sheet manufacturing apparatus and a manufacturing method capable of obtaining a reconstructed tobacco sheet having a uniform thickness by a simple manufacturing process regardless of the amount of water contained in the reconstructed tobacco raw material. To provide.

According to the first aspect of the present invention, a reconstructed tobacco sheet manufacturing apparatus is provided. This reconstructed tobacco sheet manufacturing apparatus includes a die for discharging the reconstructed tobacco raw material and an extruder for pumping the reconstructed tobacco raw material to the die by rotating a screw rotatably arranged inside. The die has a housing, a supply port formed in the housing and supplied with the reconstituted tobacco raw material, and a discharge port formed on one side of the housing to discharge the reconstituted tobacco raw material. According to this, it is possible to obtain a reconstructed tobacco sheet having a uniform thickness by a simple manufacturing process regardless of the amount of water contained in the reconstituted tobacco raw material.

According to the second embodiment of the present invention, in the first embodiment, the extruder is a twin-screw extruder having a pair of screws arranged in parallel with each other and rotating in opposite directions. According to this, even when the viscosity of the reconstituted tobacco raw material is very high, it is possible to knead efficiently. Further, according to this, it is possible to improve the sheet formability at the time of extruding the reconstructed tobacco raw material.

According to the third embodiment of the present invention, the first or second embodiment further includes a degassing mechanism for degassing the reconstituted tobacco raw material supplied to the extruder. According to this, it is possible to obtain a reconstructed tobacco sheet having high density, homogeneity, and high strength.

According to the fourth aspect of the present invention, a method for producing a reconstructed tobacco sheet is provided. The method for manufacturing this reconstructed tobacco sheet is a process of pumping the reconstructed tobacco raw material to the supply port of the die by rotating a screw provided in the extruder, and molding the reconstructed tobacco raw material into a sheet from the discharge port of the die. And discharge. According to this, regardless of the amount of water contained in the reconstituted tobacco raw material, it is possible to obtain a reconstituted tobacco sheet having a uniform thickness and being cut by a simple manufacturing process.

It is a side view which shows the manufacturing apparatus of the reconstructed tobacco sheet which concerns on 1st Embodiment of this invention. It is sectional drawing which shows the extruder of the reconstructed tobacco sheet manufacturing apparatus which concerns on 1st Embodiment of this invention. It is sectional drawing in the arrow view III-III shown in FIG. It is sectional drawing which shows the die of the manufacturing apparatus of the reconstructed tobacco sheet which concerns on 1st Embodiment of this invention. It is sectional drawing in the arrow view VV shown in FIG. It is a side view which looked at the die shown in FIG. 4 from the discharge port side. It is sectional drawing which shows the extruder of the reconstructed tobacco sheet manufacturing apparatus which concerns on 2nd Embodiment of this invention. It is sectional drawing in the arrow view VIII-VIII shown in FIG. 7. It is a top view which shows the manufacturing apparatus of the reconstructed tobacco sheet which concerns on 3rd Embodiment of this invention. It is a top view which shows the manufacturing apparatus of the reconstructed tobacco sheet which concerns on 4th Embodiment of this invention. It is a side view which shows the manufacturing apparatus of the reconstructed tobacco sheet which concerns on 6th Embodiment of this invention. It is a side view which looked at the die of the reconstructed tobacco sheet manufacturing apparatus which concerns on 7th Embodiment of this invention from the discharge port side. It is a side view which looked at the die of the reconstructed tobacco sheet manufacturing apparatus which concerns on 8th Embodiment of this invention from the discharge port side. It is a side view which looked at another die of the reconstructed tobacco sheet manufacturing apparatus which concerns on 8th Embodiment of this invention from the discharge port side. It is a side view which shows the manufacturing apparatus of the reconstructed tobacco sheet which concerns on 9th Embodiment of this invention. It is a side view which shows the manufacturing apparatus of the reconstructed tobacco sheet which concerns on 10th Embodiment of this invention. It is a side view which shows the manufacturing apparatus of the reconstructed tobacco sheet which concerns on 11th Embodiment of this invention. It is a side view which shows the manufacturing apparatus of the reconstructed tobacco sheet which concerns on 13th Embodiment of this invention. It is a side view which shows the manufacturing apparatus of the reconstructed tobacco sheet which concerns on 14th Embodiment of this invention. It is a block diagram which shows the opening width control in the manufacturing apparatus of the reconstructed tobacco sheet which concerns on 14th Embodiment of this invention. It is a side view which shows the manufacturing apparatus of the reconstructed tobacco sheet which concerns on 15th Embodiment of this invention. It is a block diagram which shows the discharge rate control in the manufacturing apparatus of the reconstructed tobacco sheet which concerns on 15th Embodiment of this invention. It is a side view which shows the manufacturing apparatus of the reconstructed tobacco sheet which concerns on 16th Embodiment of this invention. It is a block diagram which shows the hot air temperature control in the manufacturing apparatus of the reconstructed tobacco sheet which concerns on 16th Embodiment of this invention. It is a side view which shows the manufacturing apparatus of the reconstructed tobacco sheet which concerns on 17th Embodiment of this invention. It is a side view which shows the manufacturing apparatus of the reconstructed tobacco sheet which concerns on 18th Embodiment of this invention.

Hereinafter, the reconstructed tobacco sheet manufacturing apparatus and manufacturing method according to the present invention will be described with reference to the drawings, but the same or corresponding parts in the drawings will be described with the same reference numerals.

First Embodiment:
FIG. 1 is a side view showing a reconstructed tobacco sheet manufacturing apparatus according to the first embodiment of the present invention. In FIG. 1, the reconstructed tobacco sheet manufacturing apparatus 100 includes an extruder 10, a die 20, a drum dryer (main drum) 30, a scraper 40, and rollers 51 and 52. The drum dryer 30 has a shaft 31 and a drum body 32.

The extruder 10 pumps the reconstituted tobacco raw material supplied from a tank or the like (not shown) to the die 20. The die 20 discharges the reconstituted tobacco raw material supplied from the extruder 10, whereby the reconstituted tobacco raw material is formed on the drum body 32 of the drum dryer 30 as the reconstructed tobacco sheet 1. The drum dryer 30 dries and conveys the reconstructed tobacco sheet 1 formed on the drum main body 32. The scraper 40 peels the reconstructed tobacco sheet 1 dried by the drum dryer 30 from the drum body 32. The rollers 51 and 52 guide the transport of the reconstructed tobacco sheet 1 peeled off by the scraper 40.

Here, the reconstituted tobacco raw material is at least one substance selected from polysaccharides (starch, dextrin, etc.) and water or alcohol (ethanol, propylene glycol, etc.) or at least self-selected as a medium of any liquid. A kneaded product containing one substance and strips or granules of tobacco plant. The reconstituted tobacco raw material is not limited to the above, and may contain other substances.

FIG. 2 is a block diagram showing an extruder of the reconstructed tobacco sheet manufacturing apparatus according to the first embodiment of the present invention. Further, FIG. 3 is a cross-sectional view taken along the line III-III shown in FIG. In FIGS. 2 and 3, the extruder 10 is rotatably arranged in the housing 11, the supply port 12 formed at one end of the housing 11, the extrusion port 13 formed at the other end of the housing 11, and the housing 11. It has a screw 14.

The reconstituted tobacco raw material supplied from the tank or the like to the extruder 10 via the supply port 12 is sent to the extrusion port 13 while being kneaded by the rotation of the screw 14, and is pressure-fed from the extrusion port 13 to the die 20. Here, the discharge speed of the reconstructed tobacco sheet 1 discharged from the die 20 is determined according to the rotation speed of the screw 14.

FIG. 4 is a cross-sectional view showing a die of a reconstructed tobacco sheet manufacturing apparatus according to the first embodiment of the present invention. FIG. 5 is a cross-sectional view taken along the line VV shown in FIG. Further, FIG. 6 is a side view of the die shown in FIG. 4 as viewed from the discharge port side. In FIGS. 4 to 6, the die 20 is a housing 23 composed of a first block 21 and a second block 22, and a supply port 24 and a first block formed in the first block 21 and communicating with the extrusion port 13 of the extruder 10. It has a manifold 25 formed between the 21 and the second block 22 and in which the reconstituted tobacco raw material is stored, and a discharge port 26 communicating with the manifold 25.

The discharge port 26 is formed in a slit shape on one side surface of the housing 23. The direction orthogonal to the longitudinal direction of the discharge port 26 is defined as the width direction of the discharge port 26. Further, the length in the longitudinal direction of the discharge port 26 is referred to as an opening length, and the length in the width direction of the discharge port 26 is referred to as an opening width. The discharge port 26 may have a hole shape or a groove shape. The slit-shaped discharge port 26 adjusts the reconstituted tobacco raw material to a uniform thickness according to the opening width of the discharge port 26 when discharged from the die 20 regardless of the amount of water contained in the reconstructed tobacco raw material. , Formed into a sheet and extruded.

The reconstituted tobacco raw material supplied from the extruder 10 to the die 20 via the supply port 24 is sent to the discharge port 26 through the manifold 25, and is discharged from the discharge port 26 as the reconstructed tobacco sheet 1 onto the drum body 32. Will be done.

Returning to FIG. 1, the drum dryer 30 has a shaft 31 and a drum body 32 that rotates about the shaft 31. The drum body 32 dries the reconstructed tobacco sheet 1 by, for example, steam sent into the drum body 32. The drum body 32 may be heated by a heater or the like.

The scraper 40 is arranged so as to face the drum main body 32 over the entire length in the width direction of the drum main body 32 orthogonal to the rotation direction of the drum main body 32, and the tip portion thereof is adjusted so as to be in contact with or close to the drum main body 32. There is. The scraper 40 is arranged near the end of the drum body 32 on the downstream side in the rotation direction so that the reconstructed tobacco sheet 1 discharged on the upstream side in the rotation direction of the drum body 32 is sufficiently dried. There is.

The reconstructed tobacco sheet 1 discharged onto the drum body 32 from the discharge port 26 of the die 20 is dried by the drum body 32 to which steam is sent into the inside, and the dried reconstructed tobacco sheet 1 is peeled off by the scraper 40. It is handed over to the subsequent process. The subsequent step is, for example, a step of cutting the reconstructed tobacco sheet 1 to a desired width, or a step of winding the cut reconstructed tobacco sheet onto a bobbin.

That is, the reconstructed tobacco sheet 1 has a step of pumping the reconstructed tobacco raw material to the supply port 24 of the die 20 by rotation of the screw 14 provided in the extruder 10, and the reconstructed tobacco raw material from the discharge port 26 of the die 20. Is manufactured by a manufacturing method including a step of forming a sheet into a sheet and discharging the tobacco.

As described above, according to the first embodiment, the reconstructed tobacco sheet manufacturing apparatus includes a die for discharging the reconstructed tobacco raw material and a main drum for drying and transporting the reconstructed tobacco raw material discharged from the die. The die comprises a housing, a supply port formed in the housing to supply the reconstituted tobacco material, and a discharge port formed on one side of the housing to discharge the reconstituted tobacco material. Therefore, regardless of the amount of water contained in the reconstituted tobacco raw material, a reconstructed tobacco sheet having a uniform thickness can be obtained by a simple manufacturing process.

Second embodiment:
FIG. 7 is a cross-sectional view showing an extruder of a reconstructed tobacco sheet manufacturing apparatus according to a second embodiment of the present invention. Further, FIG. 8 is a cross-sectional view taken along the line VIII-VIII shown in FIG. 7. The apparatus for producing a reconstructed tobacco sheet according to the second embodiment of the present invention includes the extruder 10Z shown in FIGS. 7 and 8 in place of the extruder 10 shown in FIG. Since other configurations are the same as those of the first embodiment described above, the description thereof will be omitted.

In FIGS. 7 and 8, the extruder 10Z is rotatably arranged in the housing 11Z, the supply port 12Z formed at one end of the housing 11Z, the extrusion port 13Z formed at the other end of the housing 11Z, and the housing 11Z. A twin-screw extruder having a first screw 14A and a second screw 14B.

The first screw 14A and the second screw 14B are arranged in parallel with each other and are configured to rotate in opposite directions. The reconstituted tobacco raw material supplied from the tank or the like to the extruder 10Z via the supply port 12Z is sent to the extrusion port 13Z while being kneaded by the rotation of the first screw 14A and the second screw 14B, and is sent from the extrusion port 13Z to the die 20. Is pumped to.

Here, by using the first screw 14A and the second screw 14B that rotate in opposite directions, the force for scraping the reconstructed tobacco raw material is increased, and even when the viscosity of the reconstructed tobacco raw material is very high. , Can be kneaded efficiently. Further, by using the first screw 14A and the second screw 14B that rotate in opposite directions, the shearing force for the reconstructed tobacco raw material can be increased, so that the binding of water to each other on the surface of the reconstructed tobacco raw material is promoted. , It is possible to improve the sheet formability at the time of extrusion.

As described above, according to the second embodiment, the extruder is a twin-screw extruder having a pair of screws arranged in parallel with each other and rotating in opposite directions. Therefore, even when the viscosity of the reconstituted tobacco raw material is very high, it can be efficiently kneaded. In addition, the sheet formability at the time of extruding the reconstructed tobacco raw material can be improved.

Third embodiment:
FIG. 9 is a side view showing a reconstructed tobacco sheet manufacturing apparatus according to a third embodiment of the present invention. In FIG. 9, the reconstructed tobacco sheet manufacturing apparatus 100L has a degassing mechanism 2 for degassing the reconstructed tobacco raw material supplied to the extruder 10 in addition to the reconstructed tobacco sheet manufacturing apparatus 100 shown in FIG. To be equipped. The degassing mechanism 2 has an extruder 2A and a degassing chamber 2B. Since other configurations are the same as those of the first embodiment described above, the description thereof will be omitted.

The extruder 2A has the same configuration as the extruder 10 shown in FIG. The extruder 2A pumps the reconstituted tobacco raw material supplied from a tank or the like (not shown) into the degassing chamber 2B. The extruder 2A may have the same configuration as the extruder 10Z shown in FIGS. 7 and 8.

The degassing chamber 2B degass the reconstituted tobacco raw material pressure-fed from the extruder 2A using a vacuum pump or the like (not shown) and supplies it to the extruder 10. The degree of vacuum in the degassing chamber 2B can be adjusted by operating a valve provided in a degassing path (not shown).

Here, by degassing the reconstituted tobacco raw material, it is possible to suppress the generation of an air layer of the reconstructed tobacco raw material, that is, the generation of minute bubbles, so that the reconstructed tobacco has a high density, is homogeneous, and has high strength. Sheet 1 can be obtained.

As described above, according to the third embodiment, the degassing mechanism for degassing the reconstituted tobacco raw material supplied to the extruder is further provided. Therefore, it is possible to obtain a reconstructed tobacco sheet having high density, homogeneity, and high strength. The extruder 2A, the degassing chamber 2B, and the extruder 10 may be integrally configured to form an extruder having a degassing function.

Fourth Embodiment:
FIG. 10 is a plan view showing a reconstructed tobacco sheet manufacturing apparatus according to a fourth embodiment of the present invention. In FIG. 10, the reconstructed tobacco sheet manufacturing apparatus 100A includes X extruders 10A to 10X and X dies 20A to 20X in place of the extruder 10 and die 20 shown in FIG. In addition, X may be 2 or more. Further, X dies 20A to 20X may be connected to one extruder 10. Since other configurations are the same as those of the first embodiment described above, the description thereof will be omitted.

Extruders 10A to 10X are connected to dies 20A to 20X, respectively. Further, the dies 20A to 20X are arranged along the longitudinal direction of the discharge port 26. The extruders 10A to 10X pump the reconstituted tobacco raw materials supplied from a tank or the like (not shown) to the dies 20A to 20X, respectively. The dies 20A to 20X discharge the reconstituted tobacco raw materials supplied from the extruders 10A to 10X onto the drum main body 32, respectively.

Here, by adjusting the opening length of the discharge port 26 of the dies 20A to 20X to the width of the bobbin around which the reconstructed tobacco sheet 1 is wound in the above-mentioned subsequent step, the reconstructed tobacco in the above-mentioned latter step. The step of cutting the sheet 1 to a desired width becomes unnecessary. Further, by making the opening widths of the dies 20A to 20X different from each other, it is possible to manufacture the reconstructed tobacco sheet 1 having a plurality of thicknesses with one drum dryer 30.

Further, by making the compositions of the reconstituted tobacco raw materials supplied to the extruders 10A to 10X different from each other, it is possible to manufacture a plurality of types of reconstructed tobacco sheets 1 with one drum dryer 30. Further, by selectively driving the set of the extruders 10A to 10X and the dies 20A to 20X, the manufacturing capacity of the reconstructed tobacco sheet manufacturing apparatus 100A can be easily adjusted.

As described above, according to the fourth embodiment, a plurality of dies are arranged along the longitudinal direction of the discharge port. Therefore, the step of cutting the obtained reconstructed tobacco sheet to a desired width can be omitted.

Fifth Embodiment:
In the first embodiment, the opening width of the discharge port 26 of the die 20 is constant, but in the reconstructed tobacco sheet manufacturing apparatus according to the fifth embodiment of the present invention, the die 20 has the opening width of the discharge port 26. Has a variable width mechanism (not shown) that can be changed. Since other configurations are the same as those of the first embodiment described above, the description thereof will be omitted.

The variable width mechanism is, for example, a screw. The variable width mechanism changes the opening width of the discharge port 26 by adjusting the gap between the first block 21 and the second block 22 shown in FIG. 6 according to the tightening amount of the screw. A plurality of screws may be provided so that the opening width of the discharge port 26 is different between the end portion and the center portion in the longitudinal direction of the discharge port 26. If the opening length of the discharge port 26 is larger than the opening width of the discharge port 26, the discharge state may differ in the longitudinal direction of the discharge port 26. As described above, it is preferable to have a plurality of variable width mechanisms in the longitudinal direction of the discharge port 26 in order to adjust the state of the reconstructed tobacco sheet 1 in the width direction. Further, the variable width mechanism may have an actuator such as a motor for driving a screw. By using the variable width mechanism, the thickness of the reconstructed tobacco sheet 1 can be easily changed.

As described above, according to the fifth embodiment, the die has a variable width mechanism capable of changing the length in the width direction of the discharge port. Therefore, it is possible to obtain a reconstructed tobacco sheet having a plurality of thicknesses without changing the die. In addition, by changing the opening width of the discharge port so that the flow velocity of the reconstructed tobacco raw material at the discharge port of the die becomes uniform in the longitudinal direction of the discharge port, the occurrence of wrinkles is suppressed and the reconstructed tobacco sheet can be obtained. Can be molded flat.

Sixth Embodiment:
FIG. 11 is a side view showing a reconstructed tobacco sheet manufacturing apparatus according to a sixth embodiment of the present invention. In FIG. 11, the reconstructed tobacco sheet manufacturing apparatus 100B includes three extruders 61 to 63 and a die 70 in place of the extruder 10 and the die 20 shown in FIG. The number of extruders is not limited to three, and may be two or more. Since other configurations are the same as those of the first embodiment described above, the description thereof will be omitted.

The extruders 61 to 63 are connected to the die 70. Raw materials are supplied to the extruders 61 to 63 from tanks and the like (not shown). At least one of the raw materials supplied to the extruders 61-63 contains a reconstituted tobacco raw material. Further, the raw materials supplied to the extruders 61 to 63 may be different raw materials from each other or may contain the same raw materials. The extruders 61 to 63 pump the supplied raw material to the die 70 using a screw or the like (not shown).

The die 70 has a plurality of supply ports 71 to 73 to which a plurality of raw materials are supplied from the extruders 61 to 63, and a discharge port 74 formed in a slit shape on one side surface of the die 70. In the die 70, the raw materials supplied from the extruders 61 to 63 via the supply ports 71 to 73 are spread by a manifold (not shown) and then merged in the vicinity of the discharge port 74 to form a laminated reconstructed tobacco sheet. 1 is discharged onto the drum body 32. The die 70 may have a plurality of raw materials merged in the manifold.

Here, by stacking and discharging a plurality of raw materials from the discharge port 74 of the die 70, it is possible to form multiple layers without laminating sheets having different characteristics. Therefore, the reconstructed tobacco sheet 1 having a simple structure and having a multi-layered structure can be obtained by omitting the sheet bonding step. Further, by forming the sheet in multiple layers before drying the reconstructed tobacco sheet 1 with the drum dryer 30, the adhesion of each layer can be strengthened. Furthermore, by inserting a sheet that suppresses stickiness into the multi-layered sheet, the reconstructed tobacco sheet 1 can be wound onto the bobbin and from the bobbin without taking measures such as dusting and release paper. The feeding can be easily performed.

As described above, according to the sixth embodiment, the die has a plurality of supply ports to which a plurality of raw materials are supplied, and the plurality of raw materials are laminated and discharged from the discharge port. Therefore, the step of laminating a plurality of sheets can be omitted.

Seventh Embodiment:
FIG. 12 is a side view of the die of the reconstructed tobacco sheet manufacturing apparatus according to the seventh embodiment of the present invention as viewed from the discharge port side. In FIG. 12, the die 20 further has a partition 27 that divides the discharge port 26 into a plurality of regions along the longitudinal direction of the discharge port 26. That is, in FIG. 12, the slit-shaped discharge port 26 shown in FIG. 6 is intermittently opened. Since other configurations are the same as those of the first embodiment described above, the description thereof will be omitted.

The reconstituted tobacco raw material supplied from the extruder 10 to the die 20 via the supply port 24 is sent to the discharge port 26 through the manifold 25, and is discharged from the discharge port 26 as the reconstructed tobacco sheet 1 onto the drum body 32. Will be done. At this time, since the discharge port 26 is intermittently opened, the discharged reconstructed tobacco sheet 1 is already formed into a strip shape. Therefore, the reconstructed tobacco sheet 1 dried by the drum dryer 30 can be recovered as a strand as it is after the drying is completed.

As described above, according to the seventh embodiment, the die has a partition portion that divides the discharge port into a plurality of regions along the longitudinal direction of the discharge port. Therefore, the step of stranding the sheet can be omitted. Further, in the present invention, it is effective to use the die 20 having the partition portion 27 because the shape of the discharged reconstructed tobacco sheet is stable even before drying.

Eighth embodiment:
FIG. 13 is a side view of the die of the reconstructed tobacco sheet manufacturing apparatus according to the eighth embodiment of the present invention as viewed from the discharge port side. In FIG. 13, the die 20 further has at least one raised portion 28 that faces the width direction of the discharge port 26 along the longitudinal direction of the discharge port 26. Here, the cross-sectional shape of the raised portion 28 may be a triangle, a rectangle, a sinusoidal waveform, a T-shape, or the like. That is, in FIG. 13, the slit-shaped discharge port 26 shown in FIG. 6 is an opening having two widths, that is, the apex of the raised portion 28 or the side including the apex and the bottom of the raised portion 28. Since other configurations are the same as those of the first embodiment described above, the description thereof will be omitted.

The reconstituted tobacco raw material supplied from the extruder 10 to the die 20 via the supply port 24 is sent to the discharge port 26 through the manifold 25, and is discharged from the discharge port 26 as the reconstructed tobacco sheet 1 onto the drum body 32. Will be done. At this time, since the raised portion 28 is provided in the discharge port 26, the discharged reconstructed tobacco sheet 1 is already formed with strips having a cross-sectional shape corresponding to the raised portion 28. Therefore, the reconstructed tobacco sheet 1 dried by the drum dryer 30 can be recovered as the reconstructed tobacco sheet 1 in which the strips are formed as it is after the drying is completed.

As described above, according to the eighth embodiment, the die has at least one raised portion that faces the width direction of the discharge port along the longitudinal direction of the discharge port. Therefore, the reconstructed tobacco sheet can be reconstructed while omitting the step of passing the reconstructed tobacco sheet between the paired rollers and pressing the zigzag or corrugated shape, which has been performed with the conventional reconstructed tobacco sheet. Surface treatment (eg, embossing) can be performed to increase the surface area per weight of the tobacco. Further, in the present invention, it is effective to use the die 20 having the raised portion 28 because the shape of the discharged reconstructed tobacco sheet is stable even before drying.

As shown in FIG. 14, when the raised portion 28 is T-shaped, the strips formed on the reconstructed tobacco sheet 1 spread in the reconstructed tobacco sheet 1. Such a surface shape is not obtained by pressing the reconstructed tobacco sheet 1 with a roller, but is obtained only by using the die 20 shown in the eighth embodiment.

Ninth embodiment:
FIG. 15 is a side view showing a reconstructed tobacco sheet manufacturing apparatus according to a ninth embodiment of the present invention. In FIG. 15, the reconstructed tobacco sheet manufacturing apparatus 100C includes a drum dryer (secondary drum) 35 and a scraper 45 in addition to the reconstructed tobacco sheet manufacturing apparatus 100 shown in FIG. Since other configurations are the same as those of the first embodiment described above, the description thereof will be omitted.

The drum dryer 35 is arranged after the drum dryer 30 and is used in combination with the drum dryer 30. The drum dryer 35 has a shaft 36 and a drum body 37 that rotates about the shaft 36. The drum body 37 is heated, for example, by steam sent into the drum body 37. The drum body 37 may be heated by a heater or the like. Further, the drum dryer 30 and the drum dryer 35 are configured so that the temperature can be adjusted independently.

The drum dryer 35 receives the reconstructed tobacco sheet 1 dried by the drum dryer 30 and peeled off by the scraper 40, and further dries and conveys the reconstructed tobacco sheet 1. The scraper 45 peels the reconstructed tobacco sheet 1 dried by the drum dryer 35 from the drum body 37.

Here, by using the drum dryer 30 and the drum dryer 35, the drying distance of the reconstructed tobacco sheet 1 can be extended, and the drying capacity of the reconstructed tobacco sheet manufacturing apparatus 100C can be improved. Therefore, it is possible to cope with a reconstituted tobacco raw material having a large amount of water.

Further, comparing the case where two drum dryers having the same drum diameters are used and the case where one drum dryer is used for the same drying distance, when two drum dryers are used, the respective drum diameters are set to 1. It can be halved the drum diameter of one drum dryer. That is, the total volume of the two drum dryers can be reduced to half that of one drum dryer. Therefore, when two drum dryers are used, the required heat energy can be reduced to half that when one drum dryer is used.

As described above, according to the ninth embodiment, the sub-drum used in combination with the main drum is further provided, and the sub-drum is arranged after the main drum, and the reconstructed tobacco raw material conveyed by the main drum is used. Receive from the main drum and carry it further. Therefore, the reconstituted tobacco raw material dried and transported by the main drum can be further treated while extending the transport distance of the reconstituted tobacco raw material. In the ninth embodiment, the auxiliary drum is a drum dryer, but the auxiliary drum is not limited to this, and the auxiliary drum may be a cooling drum for cooling the reconstructed tobacco sheet 1 dried by the drum dryer 30.

Tenth embodiment:
FIG. 16 is a side view showing a reconstructed tobacco sheet manufacturing apparatus according to the tenth embodiment of the present invention. In FIG. 16, the reconstructed tobacco sheet manufacturing apparatus 100D includes a drum dryer (secondary drum) 35 in addition to the reconstructed tobacco sheet manufacturing apparatus 100 shown in FIG. Since other configurations are the same as those of the first embodiment described above, the description thereof will be omitted.

The drum dryer 35 is arranged to face the drum dryer 30 and is used in combination with the drum dryer 30. The drum dryer 35 has a shaft 36 and a drum body 37 that rotates about the shaft 36. The shaft 36 is configured so that the gap between the drum dryer 30 and the drum dryer 35 can be arbitrarily adjusted by a drive mechanism (not shown).

The drum body 37 is heated by, for example, steam sent into the drum body 37. The drum body 37 may be heated by a heater or the like. Further, the drum dryer 30 and the drum dryer 35 are configured so that the temperature can be adjusted independently.

The drum dryer 35 dries and conveys the reconstructed tobacco sheet 1 formed on the drum body 32 in cooperation with the drum dryer 30. The reconstructed tobacco sheet 1 conveyed by the drum dryer 30 and the drum dryer 35 is compressed as it passes through the gap between the drum dryer 30 and the drum dryer 35.

Here, by compressing the reconstructed tobacco sheet 1 with the drum dryer 30 and the drum dryer 35, the density of the reconstructed tobacco sheet 1 is reduced by the compaction effect of the drum dryer 30 and the drum dryer 35 at the time of ejection from the die 20. Can be enhanced. Further, by adjusting the gap between the drum dryer 30 and the drum dryer 35, it is possible to control the thickness of the reconstructed tobacco sheet 1 that has passed through the gap between the drum dryer 30 and the drum dryer 35.

Further, by passing the reconstructed tobacco sheet 1 through the gap between the drum dryer 30 and the drum dryer 35, the compaction effect of the drum dryer 30 and the drum dryer 35 causes the reconstructed tobacco according to the distribution of the ejection speed at the time of ejection from the die 20. Wrinkles and the like generated on the sheet 1 can be eliminated. Further, by embossing the surface of the drum body 37, when the reconstructed tobacco sheet 1 passes through the gap between the drum dryer 30 and the drum dryer 35, the surface of the reconstructed tobacco sheet 1 is embossed. And the specific surface area can be expanded. The processing performed on the surface of the drum body 37 is not limited to the embossing processing, and may be slit processing or the like for cutting the reconstructed tobacco sheet 1.

As described above, according to the tenth embodiment, the sub-drum used in combination with the main drum is further provided, and the sub-drum is arranged to face the main drum and is discharged from the die in cooperation with the main drum. Transport the reconstituted tobacco raw material. Therefore, in cooperation with the main drum, the reconstituted tobacco raw material dried and transported by the main drum can be further treated.

Eleventh embodiment:
FIG. 17 is a side view showing a reconstructed tobacco sheet manufacturing apparatus according to the eleventh embodiment of the present invention. In FIG. 17, the reconstructed tobacco sheet manufacturing apparatus 100E includes an extruder 10 and a die 20 provided in the drum dryer 35 in addition to the reconstructed tobacco sheet manufacturing apparatus 100D shown in FIG. Since other configurations are the same as those of the tenth embodiment described above, the description thereof will be omitted.

The extruder 10 provided in the drum dryer 35 is supplied with raw materials supplied from a tank or the like (not shown). The raw material supplied to the extruder 10 may or may not contain the reconstituted tobacco raw material. The extruder 10 pumps the supplied raw material to the die 20 using a screw or the like (not shown). The die 20 provided in the drum dryer 35 forms the raw material supplied from the extruder 10 into a sheet shape and discharges the raw material onto the drum main body 37. The sheets discharged from each of the die 20 provided in the drum dryer 30 and the die 20 provided in the drum dryer 35 are multi-layered when passing through the gap between the drum dryer 30 and the drum dryer 35.

Here, the sheets having different characteristics are bonded by passing the sheets discharged from the dies 20 provided in the drum dryer 30 and the drum dryer 35 through the gap between the drum dryer 30 and the drum dryer 35. Can be multi-layered without. Therefore, the reconstructed tobacco sheet 1 having a simple structure and having a multi-layered structure can be obtained by omitting the sheet bonding step. Further, the adhesion of each layer can be strengthened by making the sheets multi-layered before drying the tobacco sheet 1 reconstructed by the drum dryer 30 and the drum dryer 35. Further, by adjusting the gap between the drum dryer 30 and the drum dryer 35, it is possible to control the thickness of the reconstructed tobacco sheet 1 that has passed through the gap between the drum dryer 30 and the drum dryer 35.

As described above, according to the eleventh embodiment, the sub-drum used in combination with the main drum and the die having the same configuration as the die provided on the main drum and discharging the discharge material to the sub-drum. Further prepare. Therefore, the step of laminating a plurality of sheets can be omitted.

12th Embodiment:
In the reconstructed tobacco sheet manufacturing apparatus according to the twelfth embodiment of the present invention, the characteristics of the surface of the drum body 32 of the drum dryer 30 and the drum body 37 of the drum dryer 35 shown in the first embodiment and the like are obtained. Surface modification treatment is applied for improvement.

Here, the improvement of the characteristics is the improvement of wear resistance, corrosion resistance, peeling / releasability, and thermal conductivity, and the surface modification treatment is a chemical treatment such as plating or a physical treatment such as blasting. including. Examples of specific characteristics and surface modification treatment are shown in Tables 1 to 6. As a result, the surface characteristics of the drum body 32 of the drum dryer 30 and the drum body 37 of the drum dryer 35 are improved, and the usability and durability of the device can be improved.

A person skilled in the art can select and apply a surface treatment suitable for the purpose from the surface modification treatments shown in Tables 1 to 6. In Tables 1 to 6, ⊚ indicates that it can be applied as a surface treatment regardless of the conditions of the extruded material or the apparatus. Further, in Tables 1 to 6, ◯ indicates that it can be applied as a surface treatment if either the extruded material or the conditions of the apparatus are met. Further, in Tables 1 to 6, Δ indicates that it can be applied as a surface treatment if both the conditions of the extruded material and the apparatus are met. Further, in Tables 1 to 6, * indicates that it can be applied as a surface treatment if the conditions (temperature and viscosity) of the extruded material and the conditions of the device (temperature of the drum surface and the moving speed of the drum surface) are met. .. Further, in Table 3, insulation means that electrolytic corrosion is less likely to occur on the surface due to insulation.

As described above, according to the twelfth embodiment, the main drum is subjected to surface modification treatment. Therefore, the characteristics of the surface of the main drum can be improved. The surface modification treatment may be applied to the sub drum, not limited to the main drum.

13th Embodiment:
FIG. 18 is a side view showing a reconstructed tobacco sheet manufacturing apparatus according to the thirteenth embodiment of the present invention. In FIG. 18, the reconstructed tobacco sheet manufacturing apparatus 100F includes a hot air blower (auxiliary drying apparatus) 80 in addition to the reconstructed tobacco sheet manufacturing apparatus 100 shown in FIG. Since other configurations are the same as those of the first embodiment described above, the description thereof will be omitted.

The hot air blower 80 is arranged on the drying path of the drum dryer 30 so as to face the drum main body 32 of the drum dryer 30. The hot air blower 80 sends hot air to dry the reconstructed tobacco sheet 1 discharged onto the drum body 32 from the discharge port 26 of the die 20 from the surface side of the reconstructed tobacco sheet 1. Here, the surface of the reconstructed tobacco sheet 1 is a surface that is not in contact with the drum body 32 of the reconstructed tobacco sheet 1. Further, the hot air blower 80 is configured so that the drying capacity can be adjusted by unique parameters such as air volume, output, and hot air temperature. Further, the hot air temperature can be set to a temperature equal to or higher than normal temperature.

Here, by using the hot air blower 80, the drying capacity of the reconstructed tobacco sheet manufacturing apparatus 100F can be improved. Therefore, with a simple structure, it is possible to cope with a reconstituted tobacco raw material having a large amount of water. Further, by using the hot air blower 80, both sides of the reconstructed tobacco sheet 1 can be dried at the same time.

As described above, according to the thirteenth embodiment, an auxiliary drying device is further provided, which is arranged to face the main drum and dries the reconstituted tobacco raw material discharged from the die. Therefore, the drying capacity of the reconstructed tobacco sheet manufacturing apparatus can be improved. In the thirteenth embodiment, the auxiliary drying device is a hot air blower, but the auxiliary drying device is not limited to this, and the auxiliary drying device may be an IR heater. Further, instead of the auxiliary drying device, a cooling device that sends cold air to the reconstructed tobacco sheet 1 may be provided.

14th Embodiment:
FIG. 19 is a side view showing a reconstructed tobacco sheet manufacturing apparatus according to the 14th embodiment of the present invention. FIG. 20 is a block diagram showing an opening width control in the reconstructed tobacco sheet manufacturing apparatus according to the 14th embodiment of the present invention. In FIGS. 19 and 20, the reconstructed tobacco sheet manufacturing apparatus 100G includes a thickness detection sensor (state detection unit) 91 and a PLC (control unit) 200 in addition to the reconstructed tobacco sheet manufacturing apparatus 100 shown in FIG. To be equipped. Further, the die 20 of the reconstructed tobacco sheet manufacturing apparatus 100G has a variable width mechanism 92 that can change the opening width of the discharge port 26 by using a motor as an actuator as shown in the fifth embodiment described above. Since other configurations are the same as those of the first embodiment described above, the description thereof will be omitted.

The thickness detection sensor 91 is provided in the vicinity of the discharge port 26. The thickness detection sensor 91 detects the thickness of the reconstructed tobacco sheet 1 ejected from the die 20 in a non-contact manner using X-rays, a laser, ultrasonic waves, or the like, and as a thickness measurement value, a PLC (programmable logical controller). ) Output to 200.

The PLC 200 may be built in the reconstructed tobacco sheet manufacturing apparatus 100G, or may be provided at a distance. In the PLC200, the difference between the thickness setting value and the thickness measurement value is based on the thickness setting value which is the desired thickness of the reconstructed tobacco sheet 1 and the thickness measurement value from the thickness detection sensor 91. A control command is output to the variable width mechanism 92 so that it becomes zero, and the motor is controlled. As a result, the opening width of the discharge port 26 is changed, and the thickness of the reconstructed tobacco sheet 1 discharged from the die 20 changes.

When the reconstructed tobacco sheet 1 is discharged from the die 20, the sheet may expand due to pressure release, and the thickness of the reconstructed tobacco sheet 1 may not match the opening width of the discharge port 26. Therefore, the thickness of the reconstructed tobacco sheet 1 can be adjusted to a desired thickness by feedback-controlling the opening width of the discharge port 26 with respect to the uncontrollable element of pressure release.

As described above, according to the 14th embodiment, the die has a variable width mechanism capable of changing the width direction length of the discharge port as an actuator, and the state detection unit is a reconstructed cigarette discharged from the die. The thickness of the raw material is detected, and the control unit controls the variable width mechanism based on the detection result by the state detection unit to change the length of the discharge port in the width direction. Therefore, the thickness of the reconstructed tobacco sheet can be adjusted to a desired thickness.

Fifteenth embodiment:
FIG. 21 is a side view showing a reconstructed tobacco sheet manufacturing apparatus according to the fifteenth embodiment of the present invention. FIG. 22 is a block diagram showing discharge rate control in the reconstructed tobacco sheet manufacturing apparatus according to the fifteenth embodiment of the present invention. In FIGS. 21 and 22, the reconstructed tobacco sheet manufacturing apparatus 100H includes a flow rate sensor (state detection unit) 93 and a PLC (control unit) 200 in addition to the reconstructed tobacco sheet manufacturing apparatus 100 shown in FIG. .. Further, in the reconstructed tobacco sheet manufacturing apparatus 100H, the screw 14 rotatably arranged in the housing 11 of the extruder 10 has a function as an actuator. Since other configurations are the same as those of the first embodiment described above, the description thereof will be omitted.

The flow rate sensor 93 is provided in the vicinity of the discharge port 26. The flow rate sensor 93 detects the flow rate of the reconstructed tobacco sheet 1 discharged from the die 20 in a non-contact manner using a laser or the like, and outputs the flow rate measurement value to the PLC 200. Here, the flow rate measurement value is used as a value for estimating the discharge speed of the reconstructed tobacco sheet 1 discharged from the die 20.

The PLC 200 may be built in the reconstructed tobacco sheet manufacturing apparatus 100H, or may be provided at a distance. The PLC 200 is screwed so that the difference between the flow rate set value and the flow rate measured value becomes zero based on the flow rate set value which is the desired flow rate of the reconstructed tobacco sheet 1 and the flow rate measured value from the flow rate sensor 93. A control command is output to 14 to control the rotation of the screw 14. As a result, the ejection speed of the reconstructed tobacco sheet 1 ejected from the die 20 changes.

The discharge speed of the reconstructed tobacco sheet 1 discharged from the die 20 varies to some extent due to the swell of the screw 14. Therefore, by feedback-controlling the discharge speed of the reconstructed tobacco sheet 1, the discharge speed of the reconstructed tobacco sheet 1 discharged from the die 20 can be kept within a certain range. Further, by keeping the discharge speed of the reconstructed tobacco sheet 1 constant, it is possible to prevent the reconstructed tobacco sheet 1 from dubbing on the drum dryer 30 and to prevent the reconstructed tobacco sheet 1 from being torn off due to an increase in tension. Can be done. Further, by keeping the discharge speed of the reconstructed tobacco sheet 1 constant, it is possible to suppress the variation in the thickness of the sheet due to the pressure release and stabilize the quality of the reconstructed tobacco sheet 1.

As described above, according to the fifteenth embodiment, an extruder for pumping the reconstituted tobacco raw material to the die is further provided, and the extruder has a screw rotatably arranged in the housing as an actuator. The state detection unit detects at least one of the flow rate and the discharge pressure of the reconstituted tobacco raw material discharged from the die, and the control unit controls the rotation of the screw based on the detection result by the state detection unit and discharges from the die. The discharge rate of the reconstituted tobacco raw material is changed. Therefore, the discharge speed of the reconstructed tobacco sheet discharged from the die can be kept constant.

In the fifteenth embodiment, instead of the flow rate sensor 93, or in addition to the flow rate sensor 93, the discharge pressure of the reconstructed tobacco sheet 1 discharged from the die 20 is applied to the vicinity of the discharge port 26 or the inside of the die 20. A discharge pressure sensor for detection may be provided. In this case, the discharge pressure detected by the discharge pressure sensor can be used as a value for estimating the discharge speed of the reconstructed tobacco sheet 1 discharged from the die 20.

16th Embodiment:
FIG. 23 is a side view showing a reconstructed tobacco sheet manufacturing apparatus according to the 16th embodiment of the present invention. FIG. 24 is a block diagram showing hot air temperature control in the reconstructed tobacco sheet manufacturing apparatus according to the 16th embodiment of the present invention. In FIGS. 23 and 24, the reconstructed tobacco sheet manufacturing apparatus 100I includes a water content sensor (state detection unit) 94 and a PLC (control unit) 200 in addition to the reconstructed tobacco sheet manufacturing apparatus 100 shown in FIG. Be prepared. Further, the reconstructed tobacco sheet manufacturing apparatus 100I has the hot air blower (auxiliary drying apparatus) 80 shown in the thirteenth embodiment described above as an actuator. Since other configurations are the same as those of the first embodiment described above, the description thereof will be omitted.

The water content sensor 94 is provided after the scraper 40. The water content sensor 94 detects the water content of the reconstructed tobacco sheet 1 peeled off by the scraper 40 in a non-contact manner using infrared rays, microwaves, or the like, and outputs it to the PLC 200 as a water content measurement value. The hot air blower 80 is arranged on the drying path of the drum dryer 30 so as to face the drum main body 32 of the drum dryer 30.

The PLC 200 may be built in the reconstructed tobacco sheet manufacturing apparatus 100I, or may be provided at a distance. In the PLC200, the difference between the water content setting value and the water content measurement value is zero based on the water content setting value which is the desired water content of the reconstructed tobacco sheet 1 and the water content measurement value from the water content sensor 94. A control command is output to the hot air blower 80 to control the temperature of the hot air sent from the hot air blower 80. As a result, the water content of the reconstructed tobacco sheet 1 dried by the drum dryer 30 and the hot air blower 80 changes.

The water content of the reconstructed tobacco sheet 1 dried by the drum dryer 30 and the hot air blower 80 varies depending on the environment, the season, and the like. Therefore, by feedback-controlling the water content of the reconstructed tobacco sheet 1, the water content of the reconstructed tobacco sheet 1 dried by the drum dryer 30 and the hot air blower 80 can be kept within a certain range. As a result, the quality of the reconstructed tobacco sheet 1 can be stabilized. Further, since the hot air blower 80 has higher responsiveness and is easier to control than the drum dryer 30, the water content of the reconstructed tobacco sheet 1 can be controlled in detail. Further, since the water content of the reconstructed tobacco sheet 1 can be automatically controlled, it is possible to eliminate the need for constant monitoring by the operator.

As described above, according to the 16th embodiment, the reconstructed tobacco raw material discharged from the die is dried and transported, and the reconstructed tobacco raw material disposed facing the drum and discharged from the die is dried. The state detection unit detects the water content of the reconstituted tobacco raw material dried by the drum and the auxiliary drying device, and the control unit assists based on the detection result by the state detection unit. The drying device is controlled to change the moisture content of the reconstituted tobacco raw material dried by the drum and the auxiliary drying device. Therefore, the water content of the reconstructed tobacco sheet dried by the drum and the auxiliary drying device can be kept within a certain range.

The reconstructed tobacco sheet manufacturing apparatus 100G according to the 14th embodiment, the reconstructed tobacco sheet manufacturing apparatus 100H according to the 15th embodiment, and the reconstructed tobacco sheet manufacturing apparatus 100I according to the 16th embodiment are used. It may be combined arbitrarily.

17th Embodiment:
FIG. 25 is a side view showing a reconstructed tobacco sheet manufacturing apparatus according to the 17th embodiment of the present invention. In FIG. 25, the reconstructed tobacco sheet manufacturing apparatus 100J includes an addition mechanism 95 in addition to the reconstructed tobacco sheet manufacturing apparatus 100 shown in FIG. Since other configurations are the same as those of the first embodiment described above, the description thereof will be omitted.

The addition mechanism 95 is provided in the vicinity of the discharge port 26, and a powdery or liquid fragrance is added to the reconstructed tobacco sheet 1 discharged from the die 20 by spraying. The installation position of the addition mechanism is not limited to the vicinity of the discharge port 26, and the addition mechanism may be provided on the drying path of the drum dryer 30.

The reconstructed tobacco sheet 1 manufactured by the present invention has a smooth surface due to the pressure load on the die 20 and the shrinkage during drying on the drum dryer 30, so that the liquid permeability is low. Therefore, the fixability of the additive can be improved by adding the fragrance before or during the drying of the reconstructed tobacco sheet 1. Further, by providing the addition mechanism 95 in the reconstructed tobacco sheet manufacturing apparatus 100J, the step of adding the fragrance in the subsequent step becomes unnecessary.

As described above, according to the 17th embodiment, the fixing property of the additive can be improved by further providing an addition mechanism for adding the powdery or liquid fragrance on the downstream side of the die 20. ..

18th Embodiment:
FIG. 26 is a side view showing a reconstructed tobacco sheet manufacturing apparatus according to the eighteenth embodiment of the present invention. In FIG. 26, the reconstructed tobacco sheet manufacturing apparatus 100K includes a buffer mechanism 55 in addition to the reconstructed tobacco sheet manufacturing apparatus 100 shown in FIG. Since other configurations are the same as those of the first embodiment described above, the description thereof will be omitted.

The buffer mechanism 55 is provided between the discharge port 26 and the drum dryer 30, and winds up the reconstructed tobacco sheet 1 discharged from the die 20 and temporarily holds it. Here, the buffer mechanism 55 is suitable for a reconstituted tobacco raw material containing a small amount of water. Since the reconstructed tobacco sheet 1 before being dried by the drum dryer 30 has low strength, the structure of the buffer mechanism 55 is, for example, a fixed roller 56 and a movable roller 57 that can be moved according to the tension of the reconstructed tobacco sheet 1. Those having and are suitable. The buffer mechanism 55 moves the movable roller 57 so that the tension of the reconstructed tobacco sheet 1 becomes constant.

By providing the buffer mechanism 55, it corresponds to the case where the discharge speed of the reconstructed tobacco sheet 1 discharged from the die 20 and the rotation speed of the drum body 32 cannot be synchronized due to the fluctuation of the discharge amount from the die 20 or the like. can do. Specifically, by feeding out the reconstructed tobacco sheet 1 held in the buffer mechanism 55 or temporarily holding the reconstructed tobacco sheet 1 in the buffer mechanism 55, the discharge speed of the reconstructed tobacco sheet 1 can be determined. The rotation speed of the drum body 32 can be relatively synchronized. Further, even when the device upstream or downstream of the buffer mechanism 55 causes a chocolate stop, by using the buffer mechanism 55, it is possible to prevent the entire reconstructed tobacco sheet manufacturing device 100K from stopping. ..

As described above, according to the eighteenth embodiment, the reconstructed tobacco is further provided with the buffer mechanism 55 for temporarily holding the reconstructed tobacco sheet 1 discharged from the die 20 on the downstream side of the die 20. It is possible to deal with the case where the discharge speed of the sheet 1 and the rotation speed of the drum main body 32 cannot be synchronized.

Although some embodiments of the present invention have been described above, the above-described embodiments of the present invention are for facilitating the understanding of the present invention and do not limit the present invention. The present invention can be modified and improved without departing from the spirit thereof, and the present invention includes equivalents thereof. Further, it is possible to combine or omit the scope of claims and the components described in the specification within the range in which at least a part of the above-mentioned problems can be solved or the range in which at least a part of the effect is exhibited. ..

1 ... Reconstructed tobacco sheet 2 ... Degassing mechanism 2A ... Extruder 2B ... Degassing chamber 10, 10A-10X, 10Z ... Extruder 11, 11Z ... Housing 12, 12Z ... Supply port 13, 13Z ... Extrusion port 14 ... Screw 14A ... 1st screw 14B ... 2nd screw 20, 20A-20X ... Die 21 ... 1st block 22 ... 2nd block 23 ... Housing 24 ... Supply port 25 ... Manifold 26 ... Discharge port 27 ... Partition part 28 ... Raised part 30 Drum dryer 31 ... Axis 32 ... Drum body 35 ... Drum dryer 36 ... Axis 37 ... Drum body 40 ... Scrapper 45 ... Scrapper 51 ... Roller 52 ... Roller 53 ... Sliding drum 55 ... Buffer mechanism 56 ... Fixed roller 57 ... Movable roller 61-63 ... Extruder 70 ... Die 71-73 ... Supply port 74 ... Discharge port 80 ... Hot air blower 91 ... Detection sensor 92 ... Variable width mechanism 93 ... Flow sensor 94 ... Moisture content sensor 95 ... Addition mechanism 100, 100A-100L … Reconstructed tobacco sheet manufacturing equipment

Claims (4)

1. Reconstructed tobacco sheet manufacturing equipment
   A die that discharges reconstituted tobacco raw materials,
   An extruder for pumping the reconstituted tobacco raw material to the die by rotation of a screw rotatably arranged inside is provided.
   The die is
   With the housing
   A supply port formed in the housing and supplied with the reconstituted tobacco raw material,
   An apparatus for producing a reconstructed tobacco sheet, which is formed on one side surface of the housing and has a discharge port for discharging the reconstructed tobacco raw material.
2. The reconstructed tobacco sheet manufacturing apparatus according to claim 1.
   The extruder is a reconstructed tobacco sheet manufacturing apparatus which is a twin-screw extruder having a pair of screws arranged in parallel with each other and rotating in opposite directions.
3. The reconstructed tobacco sheet manufacturing apparatus according to claim 1 or 2.
   A reconstructed tobacco sheet manufacturing apparatus further provided with a degassing mechanism for degassing the reconstructed tobacco raw material supplied to the extruder.
4. It is a method of manufacturing a reconstructed tobacco sheet.
   The process of pumping the reconstituted tobacco raw material to the die supply port by rotating the screw provided in the extruder, and
   A method for producing a reconstructed tobacco sheet, comprising a step of forming the reconstructed tobacco raw material into a sheet and discharging it from the discharge port of the die.

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