WO2024004020A1 - Dispositif de production de feuille de tabac reconstitué et procédé de production - Google Patents

Dispositif de production de feuille de tabac reconstitué et procédé de production Download PDF

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Publication number
WO2024004020A1
WO2024004020A1 PCT/JP2022/025700 JP2022025700W WO2024004020A1 WO 2024004020 A1 WO2024004020 A1 WO 2024004020A1 JP 2022025700 W JP2022025700 W JP 2022025700W WO 2024004020 A1 WO2024004020 A1 WO 2024004020A1
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WO
WIPO (PCT)
Prior art keywords
reconstituted tobacco
sheet
raw material
tobacco raw
die
Prior art date
Application number
PCT/JP2022/025700
Other languages
English (en)
Japanese (ja)
Inventor
幸太郎 千田
Original Assignee
日本たばこ産業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 日本たばこ産業株式会社 filed Critical 日本たばこ産業株式会社
Priority to PCT/JP2022/025700 priority Critical patent/WO2024004020A1/fr
Publication of WO2024004020A1 publication Critical patent/WO2024004020A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B3/00—Preparing tobacco in the factory
    • A24B3/14—Forming reconstituted tobacco products, e.g. wrapper materials, sheets, imitation leaves, rods, cakes; Forms of such products

Definitions

  • the present invention relates to an apparatus and method for manufacturing reconstituted tobacco sheets.
  • the rolling method is particularly suitable for reconstituted tobacco raw materials containing 50% by volume or less of water.
  • the kneaded product of the reconstituted tobacco raw material is rolled and formed with rotating rollers, the thickness is adjusted, and then dried in a separately provided dryer.
  • the cast (slurry) method is particularly suitable for reconstituted tobacco raw materials containing 50% by volume or more of water.
  • a fluid of reconstituted tobacco raw material is continuously spread on a rotating drum or belt conveyor, and after being leveled to the desired thickness with a member called a blade, it is spread on a rotating drum or belt conveyor. It is peeled off from the belt conveyor and dried in a separate dryer.
  • the papermaking method is particularly suitable for reconstituted tobacco raw materials containing 80% by volume or more of water.
  • a fluid of reconstituted tobacco raw material is continuously spread on a liquid-permeable belt conveyor, water is removed by a squeezing roller, and the desired thickness is obtained. Dry in the machine.
  • One of the objects of the present invention is to provide a reconstituted tobacco sheet manufacturing apparatus and a manufacturing method thereof that manufacture reconstituted tobacco sheets with fewer wrinkles.
  • a reconstituted tobacco sheet manufacturing apparatus includes a die that discharges reconstituted tobacco raw material in the form of a sheet, and a temperature adjustment device that adjusts the temperature of the reconstituted tobacco raw material that passes through the die.
  • the fluidity of the raw material is one of the causes of wrinkles in the sheet-shaped reconstituted tobacco raw material discharged from the die.
  • the viscosity of the reconstituted tobacco raw material is reduced, that is, the fluidity of the reconstituted tobacco raw material is increased by heating the reconstituted tobacco raw material passing through the die with the temperature control device.
  • the discharge flow rate in the width direction can be made uniform by partially heating the portion where the discharge amount is low and partially increasing the discharge flow rate using the temperature control device. As a result, the occurrence of wrinkles in the reconstituted tobacco sheet can be suppressed.
  • wrinkles may occur when a portion of the reconstituted tobacco sheet has a large discharge flow rate in the width direction. Therefore, according to the first aspect, by partially cooling the portion with a high discharge flow rate using the temperature control device, the discharge flow rate can be partially suppressed and the discharge flow rate in the width direction can be made uniform. As a result, the occurrence of wrinkles in the reconstituted tobacco sheet can be suppressed.
  • the term "wrinkles" in the reconstituted tobacco sheet is not limited to lines formed on the sheet, but also includes uneven thickness of the sheet, slack, or a wavy or ripple-like appearance. .
  • the gist of the second aspect is that in the first aspect, the temperature adjustment device is attached to the die.
  • the temperature control device can directly adjust the temperature of the reconstituted tobacco raw material passing through the die via the die, the temperature of the reconstituted tobacco raw material can be adjusted more efficiently. can.
  • the gist of the third aspect is that in the first aspect or the second aspect, the temperature adjustment device includes a heating device that heats the reconstituted tobacco raw material passing through the die.
  • the heating device is configured to heat the reconstituted tobacco raw material such that the temperature of the reconstituted tobacco raw material passing through the die is less than 100°C.
  • the gist is that.
  • the fluidity of the reconstituted tobacco raw material is increased while preventing moisture contained in the reconstituted tobacco raw material from evaporating and condensing at the discharge port of the die, thereby eliminating wrinkles in the reconstituted tobacco sheet.
  • the occurrence of can be suppressed.
  • the gist of a fifth aspect is that in the first aspect or the second aspect, the temperature adjustment device includes a cooling device that cools the reconstituted tobacco raw material passing through the die.
  • the discharge flow rate in the width direction can be made uniform by partially cooling the portion with a large discharge flow rate using the cooling device. As a result, the occurrence of wrinkles in the reconstituted tobacco sheet can be suppressed.
  • the die has an elongated discharge port for discharging the reconstituted tobacco raw material in the form of a sheet, and the apparatus for manufacturing the reconstituted tobacco sheet
  • the gist of the present invention is to include a plurality of temperature adjusting devices that are attached to the die along the longitudinal direction of the discharge port and can be controlled independently of each other.
  • the temperature of the reconstituted tobacco raw material passing through the die can be partially adjusted in the longitudinal direction of the discharge port of the die, that is, in the width direction orthogonal to the discharge direction. Therefore, when flow rate irregularities occur in the width direction, by partially adjusting the temperature (i.e., viscosity) of the reconstituted tobacco, it is possible to suppress the occurrence of wrinkles in the discharged sheet-like reconstituted tobacco raw material. be able to.
  • a gist of a seventh aspect is that the temperature control device according to any one of the first to sixth aspects includes a control device configured to control the operation of the temperature adjustment device.
  • the operation of the temperature adjustment device can be controlled by the control device, the operation of the temperature adjustment device can be controlled according to the occurrence of wrinkles so that the generation of wrinkles is suppressed.
  • An eighth aspect according to the seventh aspect includes a first sensor that is communicatively connected to the control device and measures the temperature of the reconstituted tobacco material passing through the die, and the control device is configured to The gist is configured to control the operation of the temperature adjustment device based on measurement data of the sensor.
  • the control device controls the temperature adjustment device to lower the temperature of the reconstituted tobacco raw material, and regenerates the tobacco material. It is possible to suppress the occurrence of state changes such as evaporation or chemical changes of the constituent tobacco raw materials.
  • the temperature or pressure inside the chamber of the extruder can be measured with the second sensor. If the temperature in the chamber is lower than a predetermined value, or if the pressure in the chamber is higher than a predetermined value, it is assumed that the viscosity of the reconstituted tobacco raw material is high. In this case, backflow of reconstituted tobacco material from the die to the extruder may occur. Furthermore, in this case, the diffusion of the raw material inside the die is not promoted, which may make it difficult to uniformly discharge the reconstituted tobacco raw material from the die.
  • the control device heats the reconstituted tobacco raw material.
  • the operation of the temperature control device can be controlled to reduce the viscosity.
  • the control device controls the temperature adjustment device so that the temperature of the reconstituted tobacco raw material decreases, and the reconstituted tobacco raw material is It is possible to suppress the occurrence of state changes such as evaporation of tobacco raw materials or chemical changes.
  • a tenth aspect is the appearance of the reconstituted tobacco raw material in a sheet form discharged from the die, which is communicably connected to the control device in any of the seventh to ninth aspects that cite the sixth aspect;
  • the control device includes a third sensor that measures the flow rate or the thickness of the sheet, and the control device controls the operation of at least one of the plurality of temperature adjustment devices based on the measurement data of the third sensor.
  • the third sensor measures the appearance, flow rate, or thickness of the sheet, thereby making it possible to detect whether or not wrinkles have occurred in the reconstituted tobacco material in the form of a sheet.
  • the control device can detect the occurrence of wrinkles based on the external appearance measurement data of the third sensor. Further, the control device receives the measurement data of the flow rate or the sheet thickness from the third sensor, and determines that wrinkles have occurred when the fluctuation width of the sheet thickness or flow rate in a predetermined time is not within a predetermined range. can be judged. In this way, when the control device detects the occurrence of wrinkles, it is possible to suppress the occurrence of wrinkles, for example, by heating or cooling the reconstituted tobacco raw material passing through the die.
  • the control device can detect the occurrence of wrinkles based on the external appearance measurement data of the third sensor. Further, the control device receives measurement data of the flow rate or sheet thickness from the third sensor, and determines whether wrinkles have occurred, for example, when the fluctuation width of the sheet thickness or flow rate over a predetermined time is not within a predetermined range. It can be determined that In this way, when the control device detects the occurrence of wrinkles, it can suppress the occurrence of wrinkles by increasing the extrusion speed of the extruder.
  • the gist of the twelfth aspect is that, in any of the first to eleventh aspects, the present invention includes a take-up device that takes over the sheet-shaped reconstituted tobacco raw material discharged from the die while applying tension.
  • tension can be applied to the sheet-shaped reconstituted tobacco raw material discharged from the die by the take-up device, so that if wrinkles occur in the sheet-shaped reconstituted tobacco raw material, the wrinkles can be smoothed out.
  • the degree of wrinkles can be reduced.
  • a method for manufacturing a reconstituted tobacco sheet includes adjusting the temperature of the reconstituted tobacco raw material passing through a die, and discharging the reconstituted tobacco raw material from the die in the form of a sheet.
  • one of the causes of wrinkles in the reconstituted tobacco sheet discharged from the die is the fluidity of the raw material.
  • the viscosity of the reconstituted tobacco raw material is reduced, that is, the fluidity of the reconstituted tobacco raw material is increased by heating the reconstituted tobacco raw material passing through the die with the temperature control device.
  • the discharge flow rate in the width direction can be made uniform by partially heating the portion where the discharge amount is low and partially increasing the discharge flow rate using the temperature control device. As a result, the occurrence of wrinkles in the reconstituted tobacco sheet can be suppressed.
  • the discharge flow rate in the width direction can be made uniform by partially cooling the portion where the discharge flow rate is high. As a result, the occurrence of wrinkles in the reconstituted tobacco sheet can be suppressed.
  • an apparatus for manufacturing a reconstituted tobacco sheet is provided.
  • This reconstituted tobacco sheet manufacturing apparatus is configured to include a die that discharges reconstituted tobacco raw material in the form of a sheet, an extruder that extrudes the reconstituted tobacco raw material into the die, and an operation of the extruder.
  • a first sensor that is communicatively connected to the control device and measures the appearance, flow rate, or sheet thickness of the reconstituted tobacco raw material in the form of a sheet discharged from the die; The device controls the extrusion speed of the extruder based on the measurement data of the first sensor.
  • the control device can detect the occurrence of wrinkles based on the external appearance measurement data of the first sensor. Further, the control device receives the measurement data of the flow rate or sheet thickness from the first sensor, and determines whether wrinkles have occurred when, for example, the fluctuation width of the sheet thickness or flow rate over a predetermined time is not within a predetermined range. It can be determined that In this way, when the control device detects the occurrence of wrinkles, it can suppress the occurrence of wrinkles by increasing the extrusion speed of the extruder.
  • the control device when the control device determines that the fluctuation range of the sheet thickness or the flow rate measured by the first sensor at a predetermined time is not within a predetermined range, the control device controls the extrusion of the extruder.
  • the gist is to increase speed.
  • the control device considers that when the fluctuation width of the thickness or flow rate measured by the first sensor is not within a predetermined range, that flow rate unevenness has occurred in the discharge direction of the sheet, and wrinkles have occurred. I judge that I did. In this way, the control device can suppress the occurrence of wrinkles by increasing the extrusion speed of the extruder when the variation width of the thickness or flow rate measured by the first sensor is not within a predetermined range.
  • the first sensor is configured to measure the thickness or flow rate at a plurality of locations in the width direction of the sheet-shaped reconstituted tobacco raw material discharged from the die,
  • the gist of the control device is to increase the extrusion speed of the extruder based on the thickness or flow rate at a plurality of locations measured by the first sensor.
  • the first sensor measures the thickness or flow rate at a plurality of locations in the width direction of the reconstituted tobacco raw material in the form of a sheet. (portions with low flow rate) or thin portions (portions with low flow rate).
  • the control device detects a part that is thicker or thinner than a predetermined thickness
  • Wrinkles occur when the difference between the average value of the thickness and the maximum or minimum value is not within a predetermined numerical range, or when the thickness distribution at multiple locations is not within the predetermined numerical range.
  • the generation of wrinkles can be suppressed by increasing the extrusion speed of the extruder.
  • the control device determines whether wrinkles have occurred in the sheet-shaped reconstituted tobacco raw material based on the appearance measured by the first sensor, and The gist is to increase the extrusion speed of the extruder when it is determined that wrinkles have occurred.
  • the control device determines whether or not wrinkles have occurred in the sheet-like reconstituted tobacco raw material by performing, for example, known image analysis on the appearance measured by the first sensor. to judge. Thereby, the control device can increase the extrusion speed of the extruder to suppress the occurrence of wrinkles.
  • An 18th aspect in any of the 14th to 17th aspects, includes a second sensor communicably connected to the control device and configured to measure the pressure inside the die or the extruder.
  • the control device reduces the extrusion speed of the extruder when determining that the pressure measured by the second sensor is equal to or higher than a predetermined value.
  • the control device determines that the pressure measured by the second sensor is equal to or higher than the predetermined value in a case where the control device increases the extrusion speed of the extruder to suppress the generation of wrinkles, etc. By reducing the extrusion speed of the extruder, the discharge state can be stabilized.
  • a nineteenth aspect is one of the fourteenth to eighteenth aspects, configured to be communicatively connected to the control device and to measure the temperature of the reconstituted tobacco raw material passing through the die or the extruder.
  • the present invention is characterized in that the control device increases the extrusion speed of the extruder when it is determined that the temperature measured by the third sensor is equal to or lower than a predetermined value.
  • increasing the extrusion speed of an extruder also increases the temperature of the reconstituted tobacco material. If the temperature of the reconstituted tobacco raw material passing through the die or extruder is below a predetermined value, it is possible that the viscosity of the reconstituted tobacco raw material inside the die or extruder is high or the extrusion speed is slow, and as a result , wrinkles may occur in the sheet-like reconstituted tobacco raw material discharged from the die.
  • the control device determines that the temperature measured by the third sensor is equal to or lower than the predetermined value, it is possible to suppress the generation of wrinkles by increasing the extrusion speed of the extruder.
  • a method for manufacturing a reconstituted tobacco sheet includes supplying reconstituted tobacco raw material to an extruder, extruding the reconstituted tobacco raw material to a die by the extruder, and discharging the reconstituted tobacco raw material from the die in the form of a sheet. , measuring the appearance, flow rate, or sheet thickness of the reconstituted tobacco raw material in the form of a sheet discharged from the die, and measuring the appearance, flow rate, or sheet thickness of the reconstituted tobacco raw material; controlling the extrusion speed of the extruder based on the extruder.
  • the occurrence of wrinkles can be detected based on the results of measuring the appearance. Furthermore, based on the measurement results of the flow rate or the sheet thickness, it can be determined that wrinkles have occurred, for example, when the variation width of the sheet thickness or flow rate over a predetermined time is not within a predetermined range. In this way, when the occurrence of wrinkles is detected, by increasing the extrusion speed of the extruder, the occurrence of wrinkles can be suppressed.
  • the gist of the 21st aspect is that in the 20th aspect, the extrusion speed of the extruder is increased when the variation width of the sheet thickness or flow rate in a predetermined time is not within a predetermined range.
  • the measured thickness or flow rate variation width when the measured thickness or flow rate variation width is not within a predetermined range, it is assumed that flow rate unevenness has occurred in the sheet discharge direction, and it is determined that wrinkles have occurred. In this way, the occurrence of wrinkles can be suppressed by increasing the extrusion speed of the extruder when the measured thickness or flow rate variation range is not within a predetermined range.
  • the thickness or flow rate at a plurality of locations in the width direction of the sheet-shaped reconstituted tobacco raw material discharged from the die is measured, and based on the measured thickness or flow rate at the plurality of locations. and increasing the extrusion speed of the extruder.
  • the 22nd aspect by measuring the thickness or flow rate at multiple locations in the width direction of the reconstituted tobacco raw material in the form of a sheet, thicker portions (portions with higher flow rates) or thinner portions (portions with higher flow rates) of the sheet in the width direction are determined. small portion) can be detected.
  • the 20th aspect it is determined whether wrinkles have occurred in the reconstituted tobacco raw material in sheet form based on the appearance, and when the wrinkles have occurred, the extruder The gist is, including, increasing speed.
  • the 23rd aspect it is possible to determine whether wrinkles have occurred in the sheet-like reconstituted tobacco raw material based on the appearance, and to increase the extrusion speed of the extruder to suppress the occurrence of wrinkles.
  • the pressure inside the die or the extruder is measured, and when the measured pressure is equal to or higher than a predetermined value, the extrusion speed of the extruder is adjusted.
  • the gist is, including, reducing.
  • the extrusion speed of the extruder when it is determined that the measured pressure is equal to or higher than the predetermined value, the extrusion speed of the extruder is decreased. , the discharge state can be stabilized.
  • the temperature of the reconstituted tobacco raw material passing through the die or the extruder is measured, and when the measured temperature is equal to or lower than a predetermined value, the The gist includes increasing the extrusion speed of the extruder.
  • increasing the extrusion speed of an extruder also increases the temperature of the reconstituted tobacco material. If the temperature of the reconstituted tobacco raw material passing through the die or extruder is below a predetermined value, it is possible that the viscosity of the reconstituted tobacco raw material inside the die or extruder is high or the extrusion speed is slow, and as a result , wrinkles may occur in the sheet-like reconstituted tobacco raw material discharged from the die. According to the twenty-fifth aspect, when it is determined that the measured temperature is equal to or lower than the predetermined value, the extrusion speed of the extruder is increased, thereby suppressing the generation of wrinkles.
  • an apparatus for manufacturing a reconstituted tobacco sheet includes a die that discharges the reconstituted tobacco raw material in the form of a sheet, and a take-up device that takes up the reconstituted tobacco raw material in the sheet shape discharged from the die, and the take-up device includes: It has a pair of first drive rollers that sandwich the reconstituted tobacco raw material in the form of a sheet, and is configured to take up the reconstituted tobacco raw material in the sheet shape while applying tension.
  • the sheet-shaped reconstituted tobacco raw material discharged from the die is easily torn.
  • stable tension can be applied to the sheet-shaped reconstituted tobacco raw material discharged from the die by sandwiching it between the first drive rollers of the take-up device.
  • the taking-off device includes a pair of second driving rollers that take up the reconstituted tobacco raw material in a sheet form from the pair of first driving rollers while sandwiching the sheet-like reconstituted tobacco raw material, and the second driving roller
  • the gist is that the rotation speed of the roller is higher than the rotation speed of the first drive roller.
  • the sheet-shaped reconstituted tobacco raw material is picked up while being sandwiched between the first drive roller and the second drive roller having a higher rotation speed, the sheet-like A desired tension can be applied to the reconstituted tobacco raw material. Therefore, the number of rotations of the first drive roller and the second drive roller can be adjusted depending on the degree of wrinkles in the sheet-like reconstituted tobacco raw material to appropriately smooth out wrinkles.
  • the taking-off device is configured to apply tension to the reconstituted tobacco raw material in a sheet form taken up by the pair of first drive rollers.
  • the gist of the present invention is to include a movable tension roller and a biasing member that presses the tension roller against the reconstituted tobacco raw material in the form of a sheet.
  • a predetermined tension can be applied to the sheet-shaped reconstituted tobacco raw material using the tension roller and the urging member.
  • the take-up device is located upstream of the first drive roller, and the reconstituted tobacco raw material in a sheet form discharged from the die is conveyed in a conveyance direction.
  • the gist is to have a direction changing roller that changes the direction.
  • the discharge port of the die is oriented vertically downward, so the sheet-shaped reconstituted tobacco raw material is discharged vertically downward.
  • the conveyance direction of the sheet-like reconstituted tobacco raw material can be changed, for example, toward the horizontal direction by the direction change roller, so that the sheet-like reconstituted tobacco raw material can be appropriately conveyed to the subsequent take-up mechanism such as the first drive roller. can do.
  • the take-up device is located downstream of the first drive roller, and the reconstituted tobacco raw material in a sheet form conveyed from the first drive roller.
  • the gist of the invention is to have a processing roller that performs surface processing on the material.
  • the processing roller subjects the sheet-shaped reconstituted tobacco raw material to a surface treatment such as perforation, uneven processing, embossing, or deboss, thereby forming the sheet-shaped reconstituted tobacco material.
  • the surface area of the raw material can be increased. This can increase the flavor or aerosol produced when the sheet-shaped reconstituted tobacco raw material is heated. Further, when surface processing is performed using a processing roller, there is a possibility that the sheet-shaped reconstituted tobacco raw material becomes easily torn.
  • the processing roller is located downstream of the first drive roller, it is possible to avoid the first drive roller from applying tension to the sheet-like reconstituted tobacco raw material after surface processing, and the sheet-like This can prevent the reconstituted tobacco raw material from tearing.
  • a gist of a 31st aspect is that in any of the 26th to 30th aspects, the withdrawal device is configured to withdraw the reconstituted tobacco raw material in a sheet form at room temperature.
  • the take-off device includes, for example, heating or drying rollers
  • the moisture content of the sheet-like reconstituted tobacco raw material taken off may change, and the physical properties may change.
  • the tensile strength changes over time, there may be areas where stress is concentrated in the sheet-like reconstituted tobacco raw material, making it susceptible to tearing.
  • the sheet-shaped reconstituted tobacco raw material can be pulled while applying tension in a state where the physical properties are not easily changed. Therefore, wrinkles can be smoothed out while preventing the sheet-shaped reconstituted tobacco raw material from tearing.
  • a control device that controls driving of the pair of first drive rollers, and a sheet shape discharged from a die, the control device being communicably connected to the control device; a sheet sensor that measures the flow rate of the reconstituted tobacco raw material, and the control device controls the rotational speed of the pair of first drive rollers based on the flow rate data measured by the sheet sensor.
  • the rotational speed of the first drive roller can be controlled according to the flow rate to apply desired tension to the sheet-like reconstituted tobacco raw material.
  • a control device that controls driving of the pair of first drive rollers, and a sheet discharged from the die, the control device being communicatively connected to the control device; a tension sensor that measures tension applied to the reconstituted tobacco raw material, and the control device controls the rotational speed of the pair of first drive rollers based on tension data measured by the tension sensor.
  • the gist is that the system is configured to:
  • a method for manufacturing a reconstituted tobacco sheet includes discharging the reconstituted tobacco raw material from a die in the form of a sheet, sandwiching the reconstituted tobacco raw material in the sheet shape between a pair of first drive rollers, and taking the reconstituted tobacco raw material in the form of a sheet. Including adding tension to tobacco raw materials.
  • the tobacco sheet discharged from the die is hardened by being heated and dried in the subsequent process, so the tobacco sheet discharged from the die is easily torn.
  • stable tension can be applied to the sheet-shaped reconstituted tobacco material discharged from the die by sandwiching it between the first drive rollers. Thereby, even if the sheet-like reconstituted tobacco raw material discharged from the die has wrinkles, the wrinkles can be smoothed out.
  • the sheet-like reconstituted tobacco raw material is taken up while being sandwiched between a pair of second drive rollers, and the rotational speed of the second drive rollers is adjusted to The gist includes making the rotation speed higher than the rotation speed of the first drive roller.
  • the tension roller can apply a predetermined tension to the reconstituted tobacco material in the form of a sheet.
  • a thirty-seventh aspect in any one of the thirty-fourth to thirty-sixth aspects, includes changing the conveying direction of the reconstituted tobacco raw material in a sheet form discharged from the die upstream of the first drive roller. , the gist is that.
  • the discharge port of the die is oriented vertically downward, so the sheet-shaped reconstituted tobacco raw material is discharged vertically downward.
  • the conveyance direction of the reconstituted tobacco raw material in sheet form can be changed, for example, toward the horizontal direction, so that it can be appropriately conveyed to the subsequent take-up mechanism such as the first drive roller. .
  • a surface treatment is performed on the reconstituted tobacco raw material in a sheet form conveyed from the first drive roller downstream of the first drive roller.
  • the gist is that it includes:
  • the surface area of the sheet-like reconstituted tobacco material is can be increased. This can increase the flavor or aerosol produced when the sheet-shaped reconstituted tobacco raw material is heated.
  • the gist of the 39th aspect is that, in any of the 34th to 38th aspects, the reconstituted tobacco raw material in sheet form is taken by the first drive roller at room temperature.
  • the taking-off process includes, for example, a heating or drying process
  • the moisture content of the sheet-shaped reconstituted tobacco raw material taken off may change, and the physical properties may change.
  • the tensile strength changes over time, there may be areas where stress is concentrated in the sheet-like reconstituted tobacco raw material, making it susceptible to tearing.
  • the reconstituted tobacco raw material in sheet form can be taken while applying tension in a state where physical properties are not easily changed. Therefore, wrinkles can be smoothed out while preventing the sheet-shaped reconstituted tobacco raw material from tearing.
  • the flow rate of the reconstituted tobacco raw material in a sheet form discharged from the die is measured, and based on the measured flow rate data, the first driving roller The gist is to control the rotation speed of.
  • the rotational speed of the first drive roller can be controlled according to the flow rate to apply desired tension to the sheet-shaped reconstituted tobacco raw material.
  • the tension applied to the sheet-like reconstituted tobacco raw material discharged from the die is measured, and based on the measured tension data, the first drive The gist is to control the rotational speed of the rollers.
  • the 41st aspect it is possible to apply a desired tension to the sheet-shaped reconstituted tobacco raw material by controlling the rotational speed of the first drive roller according to the tension actually applied to the sheet-shaped reconstituted tobacco raw material. can.
  • FIG. 1 is a schematic side sectional view of a restructured tobacco sheet manufacturing apparatus according to the present embodiment.
  • FIG. 2 is a side view of the die shown in FIG. 1 when viewed from the discharge port side.
  • FIG. 2 is a side view of a die and a sheet-like reconstituted tobacco raw material as seen from arrow 3-3 shown in FIG. 1;
  • FIG. 2 is a side view of a die and a sheet-like reconstituted tobacco raw material as seen from arrow 3-3 shown in FIG. 1 according to another embodiment.
  • 1 is a flowchart showing a method for manufacturing a reconstituted tobacco sheet.
  • FIG. 3 is a schematic side sectional view of the take-up device.
  • discharge direction refers to the direction in which the sheet-shaped reconstituted tobacco raw material is discharged from the die, or the direction in which the sheet-shaped reconstituted tobacco raw material is conveyed.
  • width direction refers to a direction perpendicular to the ejection direction.
  • the reconstituted tobacco raw material includes at least one substance selected from polysaccharides (starch, dextrin, etc.) and any liquid medium such as water or alcohol (ethanol, propylene glycol, etc.) or at least one substance selected by the user himself/herself.
  • the die 40 has a housing 42 and a discharge port 44 that discharges the sheet-shaped reconstituted tobacco raw material S1.
  • the housing 42 may be made of a strong material such as metal such as SUS, and has a chamber 42a therein that communicates with the discharge port 44.
  • Die 40 may further include an adjustment device 46 for adjusting the thickness of outlet 44.
  • Adjustment device 46 may be a device, such as a bolt, that adjusts the shape of the nozzle portion of housing 42 that defines outlet 44 .
  • a plurality of adjusting instruments 46 may be provided in the width direction of the die 40 (in the depth direction of the paper surface in FIG. 1) (see FIGS. 3 and 4 described later).
  • the discharge port 44 may have an elongated hole shape.
  • the "elongated hole shape” is not particularly limited to the shape of the hole, and may be any shape having a predetermined longitudinal direction.
  • the discharge port 44 is arranged so that its longitudinal direction faces the width direction of the die 40 (the depth direction in FIG. 1).
  • the temperature control device 70 may include, by way of example, a heating device that heats the reconstituted tobacco material passing through the die 40.
  • a heating device that heats the reconstituted tobacco material passing through the die 40.
  • the viscosity of the reconstituted tobacco raw material can be reduced, that is, the fluidity of the reconstituted tobacco raw material can be increased.
  • the discharge flow rate in the width direction can be made uniform by partially heating the portion where the discharge amount is low and partially increasing the discharge flow rate using the temperature control device 70. As a result, it is possible to suppress the occurrence of wrinkles in the sheet-shaped reconstituted tobacco raw material S1.
  • the temperature control device 70 may include, for example, a cooling device that cools the reconstituted tobacco material passing through the die 40.
  • the discharge flow rate in the width direction can be made uniform by partially cooling the portion with a large discharge flow rate using the temperature control device 70. As a result, it is possible to suppress the occurrence of wrinkles in the sheet-shaped reconstituted tobacco raw material S1.
  • the temperature adjustment device 70 includes a heating device
  • the heating device may be configured to heat the reconstituted tobacco material such that the temperature of the reconstituted tobacco material passing through the die 40 is less than 100°C. preferable.
  • the fluidity of the reconstituted tobacco raw material is increased and the sheet-like reconstituted tobacco raw material S1 is The appearance of wrinkles can be suppressed.
  • the temperature adjustment device 70 is preferably attached to the die 40.
  • the temperature control device 70 can directly adjust the temperature of the reconstituted tobacco raw material passing through the die 40 via the die 40, the temperature of the reconstituted tobacco raw material can be adjusted more efficiently.
  • temperature adjustment device 70 may be mounted in contact with the surface of housing 42 of die 40. In the example shown in FIG. More specifically, it is preferable that the temperature adjustment device 70 be attached so as to be in contact with the surface of the housing 42 so as to sandwich the chamber 42a of the die 40 therebetween.
  • the temperature adjustment device 70 may be attached to the extruder 10. For example, if the reconstituted tobacco raw material is not sufficiently heated while passing through the die 40, the reconstituted tobacco raw material passing through the extruder 10 may be heated by the temperature control device 70 attached to the extruder 10. Good too.
  • the reconstituted tobacco sheet manufacturing apparatus 100 further includes a control device 60 configured to control the operation of the temperature adjustment device 70.
  • the control device 60 since the operation of the temperature adjustment device 70 can be controlled by the control device 60, the operation of the temperature adjustment device 70 can be controlled according to the occurrence of wrinkles so that the generation of wrinkles is suppressed.
  • the control device 60 may be configured to be able to communicate with the temperature adjustment device 70.
  • the reconstituted tobacco sheet manufacturing apparatus 100 has a temperature sensor 24 that is communicably connected to the control device 60 and measures the temperature of the reconstituted tobacco raw material passing through the die 40.
  • the control device 60 controls the operation of the temperature adjustment device 70 based on the measurement data of the temperature sensor 24. For example, if the temperature measured by the temperature sensor 24 is lower than a predetermined value, it is assumed that the viscosity of the reconstituted tobacco raw material passing through the die 40 is high. By controlling the temperature adjustment device 70 so as to suppress the occurrence of wrinkles. Further, for example, when the temperature measured by the temperature sensor 24 is higher than a predetermined value, for example, 100° C.
  • the control device 60 controls the temperature adjustment device 70 to lower the temperature of the reconstituted tobacco raw material. It is possible to suppress the occurrence of state changes such as evaporation or chemical changes of the reconstituted tobacco raw material.
  • the temperature sensor 24 is embedded inside the housing 42 to more accurately measure the temperature of the reconstituted tobacco material within the chamber 42a of the die 40. , or can be exposed to chamber 42a.
  • control device 60 controls the operation of the temperature adjustment device 70 based on temperature data received from a temperature or pressure sensor 22, which will be described later, which measures the temperature or pressure of the reconstituted tobacco material passing through the chamber 12c. It's okay.
  • the reconstituted tobacco sheet manufacturing apparatus 100 preferably includes a temperature or pressure sensor 22 that is communicably connected to the control device 60 and measures the temperature or pressure inside the chamber 12c of the extruder 10.
  • the control device 60 controls the operation of the temperature adjustment device 70 based on the measurement data of the temperature or pressure sensor 22. Specifically, when the temperature within the chamber 12c is lower than a predetermined value, or when the pressure within the chamber 12c is higher than a predetermined value, it is assumed that the viscosity of the reconstituted tobacco raw material is high. In this case, backflow of reconstituted tobacco material from die 40 to extruder 10 may occur.
  • the diffusion of the raw material inside the die 40 (ie, the chamber 42a) is not promoted, and it may become difficult to uniformly discharge the reconstituted tobacco raw material from the die 40. Therefore, for example, when the temperature inside the chamber 12c is lower than a predetermined value, or when the pressure inside the chamber 12c is higher than a predetermined value, the control device 60 heats the reconstituted tobacco raw material to lower the viscosity. The operation of the temperature adjustment device 70 can be controlled accordingly. Further, for example, when the temperature inside the chamber 12c is higher than a predetermined value, for example, when it is 100° C. or higher, the control device 60 controls the temperature adjustment device 70 so that the temperature of the reconstituted tobacco raw material decreases. It is possible to suppress the occurrence of state changes such as evaporation or chemical changes of the reconstituted tobacco raw material.
  • the reconstituted tobacco sheet manufacturing apparatus 100 includes a sheet sensor that is communicably connected to the control device 60 and measures the appearance, flow rate, or sheet thickness of the reconstituted tobacco raw material in the form of a sheet discharged from the die 40. It is preferable to have 26.
  • the control device 60 controls the operation of the temperature adjustment device 70 based on the measurement data of the sheet sensor 26.
  • FIG. 3 is a side view of the die 40 and the sheet-shaped reconstituted tobacco raw material S1 as seen from the arrow 3-3 shown in FIG.
  • the reconstituted tobacco sheet manufacturing apparatus 100 includes one temperature adjustment device 70 provided on one surface of the housing 42 of the die 40 and one sheet sensor 26.
  • the sheet sensor 26 measure the appearance, flow rate, or sheet thickness, it is possible to detect whether wrinkles have occurred in the sheet-shaped reconstituted tobacco raw material S1.
  • the control device 60 can detect the occurrence of wrinkles based on the external appearance measurement data of the sheet sensor 26.
  • control device 60 receives the measurement data of the flow rate or sheet thickness in a predetermined range measured by the sheet sensor 26, and determines when the fluctuation width of the sheet thickness or flow rate at a predetermined time is not within the predetermined range. , it can be determined that wrinkles have occurred. In this way, when the control device 60 detects the occurrence of wrinkles, the control device 60 controls the temperature control device 70 to heat or cool the reconstituted tobacco raw material passing through the die 40, thereby preventing the occurrence of wrinkles. can be suppressed.
  • FIG. 4 is a side view of the die 40 and the sheet-shaped reconstituted tobacco raw material S1 as seen from the arrow 3-3 shown in FIG. 1 according to another embodiment.
  • the reconstituted tobacco sheet manufacturing apparatus 100 includes a plurality of ( It is preferable to have five (5) temperature control devices 70 in the figure.
  • the temperature of the reconstituted tobacco raw material passing through the die 40 can be partially adjusted in the longitudinal direction of the discharge port 44 of the die 40, that is, in the width direction perpendicular to the discharge direction.
  • the control device 60 preferably controls the operation of at least one of the plurality of temperature adjustment devices 70 based on the measurement data of the sheet sensor 26.
  • the control device 60 can detect the occurrence of wrinkles based on the external appearance measurement data of the sheet sensor 26.
  • the control device 60 receives measurement data of the flow rate or sheet thickness from the sheet sensor 26, and determines that wrinkles have occurred when the fluctuation width of the sheet thickness or flow rate in a predetermined time is not within a predetermined range. It can be determined that In this manner, when the control device 60 detects the occurrence of wrinkles, the generation of wrinkles can be suppressed by, for example, heating or cooling the reconstituted tobacco raw material passing through the die 40.
  • the reconstituted tobacco sheet manufacturing apparatus 100 when the reconstituted tobacco sheet manufacturing apparatus 100 includes a plurality of temperature control devices 70, it may have a single sheet sensor 26, but it is preferable to have a plurality of sheet sensors 26. .
  • the reconstituted tobacco sheet manufacturing apparatus 100 may include a plurality of sheet sensors 26 arranged along the width direction of the reconstituted tobacco raw material S1 in the form of a sheet.
  • the control device 60 controls the operation of at least one of the plurality of temperature adjustment devices 70 based on the measurement data of the plurality of sheet sensors 26.
  • the reconstituted tobacco sheet manufacturing apparatus 100 when the reconstituted tobacco sheet manufacturing apparatus 100 includes a plurality of temperature adjustment devices 70, it is preferable to include the same number of sheet sensors 26. In this case, as shown in FIG.
  • a plurality of sheet sensors 26 are arranged along the width direction to measure the thickness or flow rate at multiple points in the width direction of the reconstituted tobacco raw material S1 in the form of a sheet, thereby controlling the
  • the device 60 can detect thick sections (high flow areas) or thin sections (low flow areas) of the sheet in the width direction. According to this detection result, the control device 60 controls at least one of the temperature adjustment devices 70 corresponding to any one of the plurality of sheet sensors 26 that have measured the thick or thin portion of the sheet in the width direction to reduce wrinkles. The occurrence of can be suppressed.
  • control device 60 controlled the operation of the temperature adjustment device 70.
  • control device 60 is not limited to this, and can reduce wrinkles in the sheet-shaped reconstituted tobacco raw material S1 discharged from the die 40 by controlling the operation of the extruder 10.
  • the control device 60 can be communicatively connected to the extruder 10.
  • the control device 60 controls the operation of the extruder 10.
  • the control device 60 can control the extrusion speed of the extruder 10 based on the measurement data of the sheet sensor 26.
  • wrinkles occur in the sheet-shaped reconstituted tobacco raw material S1 when the raw material is not uniformly diffused inside the die 40 and uneven flow rate occurs in the discharge direction or width direction. Ta. Therefore, when wrinkles occur in the sheet-like reconstituted tobacco raw material S1, by increasing the extrusion speed of the extruder 10, the pressure inside the die 40 (that is, the chamber 42a) increases and the raw material is uniformly dispersed. Ru. As a result, the occurrence of wrinkles in the sheet-shaped reconstituted tobacco raw material S1 is suppressed.
  • the control device 60 determines whether wrinkles have occurred in the sheet-shaped reconstituted tobacco raw material S1 based on the appearance measured by the sheet sensor 26, and determines that wrinkles have occurred. When this occurs, the extrusion speed of extruder 10 may be increased.
  • the control device 60 determines whether wrinkles have occurred in the sheet-like reconstituted tobacco material S1 by performing, for example, known image analysis on the appearance measured by the sheet sensor 26. Thereby, the control device 60 can increase the extrusion speed of the extruder 10 to suppress the occurrence of wrinkles.
  • control device 60 determines that the fluctuation width of the sheet thickness or flow rate measured by the sheet sensor 26 during a predetermined time is not within a predetermined range
  • the control device 60 can increase the extrusion speed of the extruder 10.
  • the control device 60 considers that flow rate unevenness has occurred in the sheet discharge direction, and determines that wrinkles have occurred. In this way, the control device 60 can suppress the occurrence of wrinkles by increasing the extrusion speed of the extruder 10 when the variation width of the thickness or flow rate measured by the sheet sensor 26 is not within a predetermined range. can.
  • the sheet sensor 26 is preferably configured to measure the thickness or flow rate at multiple locations in the width direction of the sheet-shaped reconstituted tobacco raw material S1 discharged from the die 40.
  • the sheet sensor 26 may include a plurality of sheet sensors 26 as shown in FIG. 4, or a single sheet sensor 26 may measure the thickness or flow rate at multiple locations in the width direction. good.
  • the control device 60 increases the extrusion speed of the extruder 10 based on the thickness or flow rate at multiple locations measured by the sheet sensor 26.
  • the control device 60 determines whether the sheet is thick in the width direction (portion with a high flow rate) or thin in the width direction. (parts with low flow rate) can be detected. For example, the control device 60 detects "a portion thicker or thinner than a predetermined thickness", "when the difference in thickness at any two of the plurality of locations is not within a predetermined numerical range", and "when a plurality of thicknesses are detected”.
  • Wrinkles occur when the difference between the average thickness of a spot and the maximum or minimum value is not within a predetermined numerical range, or when the distribution of thickness at multiple locations is not within a predetermined numerical range. As a result, the extrusion speed of the extruder 10 can be increased to suppress the occurrence of wrinkles.
  • the reconstituted tobacco sheet manufacturing apparatus 100 preferably includes a pressure sensor 28 that is communicatively connected to the control device 60 and configured to measure the pressure inside the die 40. Temperature or pressure sensor 22 and pressure sensor 28 function as sensors configured to measure the pressure of die 40 or extruder 10 . In this case, when the control device 60 determines that the pressure measured by the temperature or pressure sensor 22 or the pressure sensor 28 is equal to or higher than a predetermined value, it is preferable to reduce the extrusion speed of the extruder 10. When the pressure inside die 40 or extruder 10 is too high, backflow from die 40 to extruder 10 may occur.
  • the control device 60 increases the extrusion speed of the extruder 10 to suppress the occurrence of wrinkles based on the measurement data of the sheet sensor 26, the pressure inside the die 40 or the extruder 10 increases. may increase too much. Therefore, when the control device 60 determines that the pressure measured by the temperature or pressure sensor 22 or the pressure sensor 28 is equal to or higher than a predetermined value, the extrusion speed of the extruder 10 is reduced to stabilize the discharge state. Can be done. Note that if the pressure measured by the temperature or pressure sensor 22 or pressure sensor 28 is high, it is possible to reduce the viscosity and reduce the pressure by heating the reconstituted tobacco raw material inside the die 40 in the temperature control device 70. It is. However, in cases where the reconstituted tobacco raw material has already been sufficiently heated by the temperature control device 70, it is particularly effective to reduce the extrusion speed of the extruder 10.
  • the reconstituted tobacco sheet manufacturing apparatus 100 includes a temperature or pressure sensor 22 and a temperature sensor 24. Temperature or pressure sensor 22 and temperature sensor 24 function as sensors configured to measure the temperature of the reconstituted tobacco material passing through die 40 or extruder 10 . In this case, when the control device 60 determines that the temperature measured by the temperature or pressure sensor 22 or the temperature sensor 24 is below a predetermined value, it is preferable to increase the extrusion speed of the extruder 10. Generally, increasing the extrusion rate by extruder 10 also increases the temperature of the reconstituted tobacco material.
  • the control device 60 determines that the temperature measured by the temperature or pressure sensor 22 or the temperature sensor 24 is below a predetermined value, the extrusion speed of the extruder 10 is increased to suppress the generation of wrinkles. be able to.
  • the method for producing a reconstituted tobacco sheet of this embodiment includes adjusting the temperature of the reconstituted tobacco raw material passing through the die 40 and discharging the reconstituted tobacco raw material from the die 40 in the form of a sheet.
  • the reconstituted tobacco raw material is supplied to the extruder 10, the extruder 10 extrudes the reconstituted tobacco raw material to the die 40, and the reconstituted tobacco raw material is shaped into a sheet from the die 40.
  • FIG. 5 is a flowchart showing a method for manufacturing a reconstituted tobacco sheet.
  • reconstituted tobacco source water is supplied to the extruder 10. Specifically, reconstituted tobacco raw material is charged into the input port 12a of the extruder 10 (step S501). Subsequently, the reconstituted tobacco raw material is extruded into the die 40 by the extruder 10. Specifically, the reconstituted tobacco raw material is extruded into the die 40 by the intake screw 14 and extrusion screw 16 of the extruder 10, and is discharged from the die 40 in the form of a sheet (step S502).
  • the control device 60 of the reconstituted tobacco sheet manufacturing apparatus 100 measures the temperature of the reconstituted tobacco raw material passing through the die 40 or the extruder 10 using the temperature or pressure sensor 22 or the temperature sensor 24, and 22 or the temperature sensor 24, and it can be determined whether the temperature of the reconstituted tobacco raw material in the chamber 12c or the chamber 42a is below a predetermined value (step S503).
  • the controller 60 measures the pressure inside the die 40 or the extruder 10 with the temperature or pressure sensor 22 or the temperature sensor 24, receives pressure data from the temperature or pressure sensor 22 or the pressure sensor 28, and controls the chamber 12c or It can be determined whether the pressure within the chamber 42a is equal to or higher than a predetermined value (step S503).
  • control device 60 may control the temperature adjustment device 70 so that the temperature of the reconstituted tobacco raw material increases (step S506). Alternatively, in this case, the control device 60 may increase the extrusion speed of the extruder 10 (step S506). Note that the control device 60 may perform both heating of the reconstituted tobacco raw material by the temperature adjustment device 70 and increasing the extrusion speed of the extruder 10, or may perform only one of them.
  • step S503 determines that the control device 60 determines that the temperature of the reconstituted tobacco raw material in the chamber 12c or chamber 42a is not below a predetermined value, or if the control device 60 determines that the pressure in the chamber 12c or 42a is not above a predetermined value (step S503, No), execute the process of step S504. That is, the control device 60 receives data on the appearance, flow rate, or sheet thickness from the sheet sensor 26, and determines whether wrinkles have occurred (step S504).
  • the control device 60 determines that wrinkles have occurred.
  • the thickness or The flow rate is measured and the occurrence of wrinkles is determined based on the measurement results.
  • the control device 60 can determine whether wrinkles are present based on the appearance data received from the sheet sensor 26.
  • control device 60 can control the temperature adjustment device 70 so that the temperature of the reconstituted tobacco raw material increases (step S506).
  • the control device 60 may increase the extrusion speed of the extruder 10 (step S506).
  • the control device 60 may perform both heating of the reconstituted tobacco raw material by the temperature adjustment device 70 and increasing the extrusion speed of the extruder 10, or may perform only one of them.
  • step S506 when the extrusion speed of the extruder 10 is increased, the control device 60 receives pressure data from the temperature or pressure sensor 22 or the pressure sensor 28, and the pressure in the chamber 12c or 42a is set to a predetermined value. It can be determined whether or not this is the case (step S507).
  • step S506 if the extrusion speed of the extruder 10 is increased to suppress the generation of wrinkles, the pressure inside the die 40 or the extruder 10 may increase too much. Therefore, when the control device 60 determines that the pressure inside the chamber 12c or the chamber 42a is equal to or higher than the predetermined value (step S507, Yes), the extrusion speed is reduced in step S508.
  • the predetermined value here is a value higher than the predetermined value in step S503.
  • step S504 if the control device 60 determines that wrinkles are not generated (step S504, No), the control device 60 receives temperature data from the temperature or pressure sensor 22 or the temperature sensor 24, and It can be determined whether the temperature of the reconstituted tobacco raw material in 42a is higher than a predetermined value (step S505).
  • the predetermined value here is a value different from the predetermined value in step S503, and is, for example, 100°C.
  • the control device 60 determines that the temperature of the reconstituted tobacco raw material in the chamber 12c or the chamber 42a is equal to or higher than the predetermined value (step S506, Yes)
  • the control device 60 controls the temperature of the reconstituted tobacco raw material to decrease.
  • the temperature adjustment device 70 can be controlled to (step S508).
  • the control device 60 may reduce the extrusion speed of the extruder 10 (step S508).
  • the control device 60 may perform both the cooling of the reconstituted tobacco raw material by the temperature adjustment device 70 and the reduction of the extrusion speed of the extruder 10, or may perform only one of them.
  • step S501 to S508 are repeated to manufacture a reconstituted tobacco sheet with fewer wrinkles.
  • step S503 and step S504 may be executed.
  • step S505, step S507, and step 508 are optional and may be omitted as appropriate.
  • step S503, step S504, and step S505 are executed, their order may be arbitrary.
  • FIG. 6 is a schematic side sectional view of the take-off device.
  • the taking device 80 is configured to take the sheet-like reconstituted tobacco raw material S1 discharged from the die 40 shown in FIG. 1 and the like.
  • the pulling device 80 has a pair of first drive rollers 82 that sandwich the sheet-shaped reconstituted tobacco raw material S1, and is configured to take the sheet-shaped reconstituted tobacco raw material S1 under tension. Since the discharged sheet-shaped reconstituted tobacco raw material S1 is solidified by being heated and dried in a subsequent step, the sheet-shaped reconstituted tobacco raw material S1 discharged from the die 40 is easily torn.
  • the reconstituted tobacco sheet manufacturing apparatus 100 of this embodiment stable tension is applied to the sheet-like reconstituted tobacco raw material S1 discharged from the die 40 by sandwiching it between the first drive rollers 82 of the take-up device 80. be able to. Thereby, even if the sheet-shaped reconstituted tobacco raw material S1 discharged from the die 40 has wrinkles, the wrinkles can be smoothed out by the take-up device 80. Note that, since it is preferable from the viewpoint of conveyance that the take-up device 80 take up the sheet-like reconstituted tobacco raw material S1 in the horizontal direction, the first drive roller 82 should not pinch the sheet-like reconstituted tobacco raw material S1 from the vertical direction. is preferred.
  • the take-up device 80 includes a pair of second drive rollers 84 that take out the sheet-shaped reconstituted tobacco raw material S1 from the pair of first drive rollers 82 while sandwiching it therebetween.
  • the rotation speed of the second drive roller 84 is set to be higher than the rotation speed of the first drive roller 82.
  • the sheet-shaped reconstituted tobacco raw material S1 is picked up while being sandwiched between the first drive roller 82 and the second drive roller 84 whose rotation speed is higher than the first drive roller 82.
  • a desired tension can be applied to the constituent tobacco raw material S1.
  • the number of rotations of the first drive roller 82 and the second drive roller 84 can be adjusted depending on the degree of wrinkles in the sheet-like reconstituted tobacco raw material S1 to appropriately smooth out wrinkles.
  • the second drive roller 84 has a rotation axis parallel to the first drive roller 82, and as a result, the sheet-shaped reconstituted tobacco raw material S1 is tensioned by the first drive roller 82 and the second drive roller 84. It is pulled horizontally while being held.
  • the operation of the first drive roller 82 and the second drive roller 84 of the take-up device 80 may be controlled by the control device 60 described above, or a control device that controls the take-up device 80 separate from the control device 60 may be used. may be provided.
  • the take-up device 80 has a processing roller that is located downstream of the first drive roller 82 and performs surface processing on the sheet-shaped reconstituted tobacco raw material S1 conveyed from the first drive roller 82.
  • the processing roller performs surface processing such as perforation, uneven processing, embossing, or deboss processing on the sheet-shaped reconstituted tobacco raw material S1, so that the sheet-shaped reconstituted tobacco raw material S1 is Surface area can be increased.
  • the flavor or aerosol produced when the sheet-shaped reconstituted tobacco raw material S1 is heated can be increased.
  • surface processing is performed using a processing roller, there is a possibility that the sheet-shaped reconstituted tobacco raw material S1 becomes easily torn.
  • the take-up device 80 includes a tension roller 86 that is movable in a predetermined direction, and a biasing member 87 that presses the tension roller 86 against the sheet-shaped reconstituted tobacco raw material S1.
  • the tension roller 86 is configured to apply tension to the sheet-like reconstituted tobacco raw material S1 taken up by the pair of first drive rollers 82.
  • the tension roller 86 and the biasing member 87 can apply a predetermined tension to the sheet-shaped reconstituted tobacco raw material S1.
  • the biasing member 87 biases the tension roller 86 from vertically downward to vertically upward against the sheet-shaped reconstituted tobacco raw material S1 that is taken up in the horizontal direction, so that the sheet-shaped reconstituted tobacco raw material S1 is Tension is added to the tobacco raw material S1.
  • Tension roller 86 is configured to rotate along a rotation axis parallel to first drive roller 82 .
  • the take-up device 80 has a first direction changing roller 88a located upstream of the first driving roller 82 and changing the conveying direction of the sheet-shaped reconstituted tobacco raw material S1 discharged from the die 40.
  • the discharge port 44 of the die 40 is oriented vertically downward, so the sheet-shaped reconstituted tobacco raw material S1 is discharged vertically downward.
  • the conveyance direction of the sheet-like reconstituted tobacco raw material S1 can be changed, for example, toward the horizontal direction by the first direction change roller 88a, so that the first drive roller 82, etc. can be properly transported to the mechanism.
  • the sheet-shaped reconstituted tobacco raw material S1 is partially taken up in the vertical direction by the tension roller 86; It has a second direction changing roller 88b that changes the conveying direction of the tobacco raw material S1 again to the horizontal direction.
  • the taking device 80 is configured to take the sheet-shaped reconstituted tobacco raw material S1 at room temperature.
  • the pulling device 80 includes, for example, a heating or drying roller, the moisture content of the sheet-like reconstituted tobacco raw material S1 to be pulled changes, and the physical properties thereof may change. In this case, since the tensile strength changes over time, the sheet-like reconstituted tobacco raw material S1 may have areas where stress is concentrated, making it more likely to tear.
  • heating or drying is not actively performed in the pulling device 80, the sheet-shaped reconstituted tobacco raw material S1 can be pulled while applying tension in a state where the physical properties are not easily changed. Therefore, wrinkles can be smoothed out while preventing the sheet-shaped reconstituted tobacco raw material S1 from tearing.
  • control device 60 shown in FIG. 1 may control the rotational speed of the first drive roller 82 based on the flow rate data measured by the sheet sensor 26.
  • the control device 60 controls the rotational speed of at least one of the first drive roller 82 and the second drive roller 84 based on the flow rate data measured by the sheet sensor 26. May be controlled. Specifically, when the flow rate of the sheet-shaped reconstituted tobacco raw material S1 increases, the control device 60 increases the rotational speed of at least one of the first drive roller 82 and the second drive roller 84, and When the flow rate of the constituent tobacco raw material S1 decreases, the rotational speed of at least one of the first drive roller 82 and the second drive roller 84 can be decreased.
  • the take-off device 80 further includes a tension sensor 89 that is communicably connected to the control device 60 and measures the tension applied to the sheet-like reconstituted tobacco raw material S1 discharged from the die 40.
  • the control device 60 can control the first drive roller 82 based on the tension data measured by the tension sensor 89 so that a desired tension is applied to the sheet-like reconstituted tobacco raw material S1.
  • the control device 60 controls the second drive roller 84 so that a desired tension is applied to the sheet-like reconstituted tobacco material S1 based on the measurement data received from the tension sensor 89. At least one of the first drive roller 82 and the second drive roller 84 can be controlled.
  • the control device 60 can change the relative speed of the first drive roller 82 and the second drive roller 84.
  • the tension sensor 89 shown in FIG. 6 can measure the tension applied to the sheet-like reconstituted tobacco raw material S1 based on the load applied to the tension roller 86, but the tension sensor 89 It may be provided on the two-direction switching roller 88b, the first drive roller 82, or the second drive roller 84. Further, as the tension sensor 89, a known tension sensor such as a non-contact type optical sensor may be used.
  • the sheet-shaped reconstituted tobacco raw material S1 discharged from the die 40 is easily torn, so in the take-up device 80 shown in FIG.
  • the take-up device 80 By passing through the one direction change roller 88a, the tension roller 86, the second direction change roller 88b, the first drive roller 82, and the second drive roller 84, the distance over which the sheet-shaped reconstituted tobacco raw material S1 is pulled is shortened. This makes it difficult to tear.
  • the arrangement of the first direction change roller 88a, tension roller 86, second direction change roller 88b, first drive roller 82, and second drive roller 84 is changed as appropriate. It's okay.
  • first direction change roller 88a the second direction change roller 88b, the first drive roller 82, and the second drive roller 84 is biased vertically or horizontally by a movable spring, so that the sheet shape is
  • the tension applied to the reconstituted tobacco raw material S1 may be adjusted without changing the speed of each roller.
  • the first direction change roller 88a and the second direction change roller 88b are employed to change the conveyance direction of the sheet-shaped reconstituted tobacco raw material S1, but the invention is not limited thereto.
  • the number of direction changing rollers can be increased or decreased depending on the strength of the reconstituted tobacco raw material S1 in the form of a sheet, the conveyance distance, the layout of the components of the take-up device 80, or the like.
  • the reconstituted tobacco raw material is supplied to the extruder 10, and the reconstituted tobacco raw material is discharged from the die 40 in the form of a sheet.
  • the sheet-shaped reconstituted tobacco raw material S1 is sandwiched between the pair of first drive rollers 82 and taken up, and tension is applied to the sheet-shaped reconstituted tobacco raw material S1.
  • the rotation speed of the second drive roller 84 is set higher than the rotation speed of the first drive roller 82. Further, as described above, it is preferable that the sheet-shaped reconstituted tobacco raw material S1 conveyed from the first drive roller 82 is subjected to surface treatment downstream of the first drive roller 82.
  • a tension roller 86 is pressed against the sheet-shaped reconstituted tobacco raw material S1, and tension is applied by the tension roller 86 to the sheet-shaped reconstituted tobacco raw material S1 taken up by the pair of first drive rollers 82.
  • the take-up device 80 of this embodiment does not have a heating roller and a drying roller. That is, it is preferable that the reconstituted tobacco raw material S1 in the form of a sheet is taken up by the first drive roller 82 at room temperature.
  • the flow rate of the sheet-shaped reconstituted tobacco raw material S1 discharged from the die 40 is measured, and the first drive is performed based on the measured flow rate data.
  • the rotational speed of roller 82 may be controlled.
  • the take-up device 80 includes the second drive roller 84, at least one of the first drive roller 82 and the second drive roller 84 may be controlled based on the measured flow rate data.
  • the tension applied to the sheet-like reconstituted tobacco raw material S1 discharged from the die 40 is measured, and based on the measured tension data, the first The rotation speed of drive roller 82 may be controlled.
  • the take-up device 80 includes the second drive roller 84, at least one of the first drive roller 82 and the second drive roller 84 may be controlled based on the measured tension data. Specifically, the relative speed of the first drive roller 82 and the second drive roller 84 may be changed.

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  • Manufacture Of Tobacco Products (AREA)

Abstract

Ce dispositif de production de matière première de tabac reconstitué comprend une matrice qui évacue une matière première de tabac reconstituée sous une forme de type feuille, et un dispositif d'enroulement qui prend la matière première de tabac reconstitué de type feuille évacuée de la matrice. Le dispositif d'enroulement a une paire de premiers rouleaux d'entraînement qui prennent en sandwich la matière première de tabac reconstitué de type feuille, et est conçu de façon à enrouler la matière première de tabac reconstitué de type feuille pendant qu'une tension est appliquée à celle-ci.
PCT/JP2022/025700 2022-06-28 2022-06-28 Dispositif de production de feuille de tabac reconstitué et procédé de production WO2024004020A1 (fr)

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US4880018A (en) * 1986-02-05 1989-11-14 R. J. Reynolds Tobacco Company Extruded tobacco materials
JPH05310968A (ja) * 1992-05-07 1993-11-22 Sekisui Chem Co Ltd フィルムの表面処理方法及び装置
JP2002537154A (ja) * 1999-02-22 2002-11-05 ゼネラル・エレクトリック・カンパニイ プラスチックシート押出時のロール速度の閉ループ制御
WO2020170543A1 (fr) * 2019-02-19 2020-08-27 三洋電機株式会社 Batterie secondaire à électrolyte non aqueux et procédé de fabrication de plaque d'électrode positive l'utilisant
JP2021528954A (ja) * 2018-06-29 2021-10-28 フィリップ・モーリス・プロダクツ・ソシエテ・アノニム エアロゾル発生物品の構成要素を製造する方法およびその構成要素を含むエアロゾル発生物品

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4880018A (en) * 1986-02-05 1989-11-14 R. J. Reynolds Tobacco Company Extruded tobacco materials
JPS63248379A (ja) * 1987-02-23 1988-10-14 ブリティッシュ−アメリカン・タバコ・カンパニー・リミテッド 煙草再生方法およびその方法によって製造される煙草充填物
JPH05310968A (ja) * 1992-05-07 1993-11-22 Sekisui Chem Co Ltd フィルムの表面処理方法及び装置
JP2002537154A (ja) * 1999-02-22 2002-11-05 ゼネラル・エレクトリック・カンパニイ プラスチックシート押出時のロール速度の閉ループ制御
JP2021528954A (ja) * 2018-06-29 2021-10-28 フィリップ・モーリス・プロダクツ・ソシエテ・アノニム エアロゾル発生物品の構成要素を製造する方法およびその構成要素を含むエアロゾル発生物品
WO2020170543A1 (fr) * 2019-02-19 2020-08-27 三洋電機株式会社 Batterie secondaire à électrolyte non aqueux et procédé de fabrication de plaque d'électrode positive l'utilisant

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