WO2021233372A1 - Homogenized tobacco sheet production system and production method - Google Patents

Abstract

A homogenized tobacco sheet production system and a production method, said production system comprising: conveying roller press apparatuses, used for performing conveying and roller pressing on a tobacco sheet; and a layering apparatus (3), which is connected to the conveying roller press apparatuses, and which is used for performing layering on the tobacco sheet and changing a conveying direction of the tobacco sheet. By means of arranging the layering apparatus (3) to perform layering on the tobacco sheet and changing a conveying direction of the tobacco sheet, the conveying roller press apparatuses can perform conveying and roller pressing on the tobacco sheet in different directions, increasing the vertical and horizontal direction tensile strength of the tobacco sheet, allowing for tobacco sheet horizontal and vertical stress to be uniform, and consequently forming a homogenized tobacco sheet, increasing tobacco sheet processability.

Description

Homogenized tobacco sheet production system and production method Technical field

The invention relates to the technical field of processing new heated cigarette raw materials, in particular to a homogenized tobacco sheet production system and production method.

Background technique

With the development of the times, people's attention to health is increasing year by year, and the harm of traditional tobacco is highly valued by people. In recent years, new heating cigarette technology has developed rapidly. The shredded tobacco used in the new heated cigarette is different from the traditional shredded tobacco. The rods of this new cigarette must use strip-shaped tobacco sheets that are arranged neatly in the longitudinal direction. The raw material of tobacco flakes comes from tobacco, and the material basis of natural tobacco leaves is the same. Therefore, related technologies regarding tobacco sheets have emerged in the market.

In order to increase the tensile strength of tobacco flakes and improve processability, the main methods of reconstituted tobacco flakes at home and abroad, whether it is dry, wet papermaking or thick pulp method, all add a certain proportion of binder and wood pulp to the raw materials to varying degrees Fiber, but the larger the proportion of additives, the worse the smoking taste of the cigarette.

The technology of remanufacturing tobacco slices by rolling method is to improve and optimize the process, and strive to zero addition of wood pulp fibers, so that the proportion of tobacco in the tobacco slices has been increased. However, due to the physical characteristics of the tobacco itself, the toughness of the tobacco mixture agglomerates with a high proportion of tobacco is far less than other substances with the same moisture content, resulting in poor processability of the rolled tobacco sheet. Therefore, new processing methods must be explored to solve the problem of poor processability of reconstituted tobacco sheets by roll pressing.

In view of this, the present invention is proposed.

Summary of the invention

The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a homogenized tobacco sheet production system. By setting a laminating device, the conveying direction of the tobacco sheet is changed and the tobacco sheet is laminated. Two sets of conveying rollers are pressed The device separately conveys and rolls the tobacco slices in different directions, so that the vertical and horizontal stresses of the tobacco slices are uniform, to form a homogenized tobacco slice, and the processing performance of the tobacco slice is improved.

In order to achieve the above objectives, the present invention adopts the following technical solutions:

A homogenized tobacco sheet production system, including:

The conveying roller pressing device is used for conveying and pressing the tobacco sheet.

The laminating device is connected with the conveying roller pressing device and is used for laminating the tobacco sheets and changing the conveying direction of the tobacco sheets.

Further, the conveying roller pressing device includes a first conveying roller pressing device and a second conveying roller pressing device, and the lamination device is arranged between the first conveying roller pressing device and the second conveying roller pressing device.

The first conveying and rolling device is used for conveying and rolling the tobacco sheet in the first direction and conveying the rolled tobacco sheet to the laminating device.

The second conveying and rolling device is used for conveying and rolling the tobacco sheet processed by the laminating device in the second direction.

Further, the first conveying roller pressing device includes at least two sub conveying roller pressing devices, and the two sub conveying roller pressing devices sequentially convey and roll the tobacco sheet along the first direction.

The second conveying roller pressing device includes at least two sub-conveying roller pressing devices, and the two sub-conveying roller pressing devices sequentially convey and roll the tobacco sheet along the second direction.

Preferably, the first direction and the second direction intersect.

Further, the sub-conveying roller pressing device includes a conveyor belt conveyor and a roller press, and the rollers of the roller press at the end of the first conveying roller pressing device and/or the end of the second conveying roller pressing device are provided with patterns.

Further, the layering device includes a distributing trolley and an output mechanism, the output mechanism is arranged below the output end of the distributing trolley, and the running direction of the output mechanism intersects the running direction of the distributing trolley.

The cloth trolley moves back and forth, and is used for conveying the tobacco sheets rolled by the first conveying roller pressing device to the output mechanism, so that the tobacco sheets are laminated.

The output mechanism is used for conveying the received tobacco sheet to the second conveying roller pressing device.

Preferably, the lamination device further includes a buffer trolley, which is arranged above the cloth trolley, and is used to receive the tobacco sheet rolled by the first rolling device and transport the received tobacco sheet to the cloth trolley.

Further, it also includes a powder spreading device, which is arranged above the distributing trolley or above the output mechanism, and is used to spread powder of a specific formula on the tobacco sheet.

Further, the dusting device includes:

The powder silo is used to hold the powder of a specific formula.

Air storage tank, used to store compressed air.

The dusting mechanism is located below the powder silo, including the dusting silo. The upper end of the dusting silo is equipped with air-pressure ejection nozzles respectively connected with the powder silo and the gas storage tank, and the lower end is equipped with a vibrating screen. The sprinkled powder is spread on the tobacco flakes through a vibrating screen.

Further, a screw hose is installed at the lower end of the powder silo, an opening is provided on the side wall of the lower end of the screw hose, a suction port is provided on the side wall of the pressure injection nozzle, and the screw hose and the pressure injection nozzle pass through a communication pipe. It is connected to the opening and the suction port.

Preferably, one end of the compressed air ejection nozzle is connected with the gas storage tank, and the other end is provided with a plurality of small holes for the sprayed powder to flow out.

Preferably, the screw hose is provided with a stirring rod, the central axis of the stirring rod coincides with the central axis of the screw hose, and the stirring rod is connected with the driving mechanism.

Further, the powder silo is in communication with a vacuum pump for evacuating the powder silo.

Preferably, the powder silo is in communication with a powder storage silo for storing powder.

Further, two vibrating motors are arranged in parallel on opposite sides of the vibrating screen for linear movement of the vibrating screen.

A method for producing homogenized tobacco flakes using the above-mentioned homogenized tobacco flake production system includes:

The rolled tobacco sheet is conveyed in the first direction.

Reversing.

The rolled tobacco sheet is conveyed in the second direction.

Further, the method specifically includes the following steps:

S1. Conveying the rolled tobacco sheet along the first direction;

S2, laminating the rolled tobacco sheet;

S3. Reversing and conveying tobacco slices;

S4. Conveying the rolled tobacco sheet along the second direction.

Further, step S2 also includes cutting the tobacco sheet in a direction intersecting the first direction to obtain a tobacco sheet meeting the required length of the lamination, and then laminating the tobacco sheet meeting the required length of the lamination.

Further, in step S2, the continuous tobacco sheets are directly laminated.

Further, in step S1, the rolled tobacco sheet is conveyed multiple times in the first direction.

In step S4, the rolled tobacco sheet is conveyed multiple times in the second direction.

Further, the first direction and the second direction intersect.

Further, between step S1 and step S2, it further includes: S11, knurling the tobacco sheet.

And/or, after step S4, the following step is further included: S5, knurling the tobacco sheet.

Further, it also includes the step of dusting the tobacco flakes. The dusting step is before step S4 and after step S1. The dusting includes dusting fragrant particles and/or dusting tobacco powder particles.

Further, dusting the tobacco flakes before or during the lamination process, sprinkling the flavor particles and/or tobacco powder particles on the surface of each layer of the tobacco flakes.

Further, after the tobacco flakes are reversibly conveyed, the tobacco flakes are dusted, and the fragrant particles and/or tobacco powder particles are dusted on the surface of the laminated tobacco flakes.

After adopting the technical scheme of the present invention, the following beneficial effects are brought about:

The homogenized tobacco sheet production system provided by the present invention changes the conveying direction of the tobacco sheet and laminates the tobacco sheet by setting a lamination device. The vertical and horizontal stresses of the tobacco sheet are uniform to form a homogenized tobacco sheet and improve the processing performance of the tobacco sheet.

The homogenized tobacco sheet production system provided by the present invention laminates the tobacco sheets by arranging a lamination device to effectively repair the damaged tobacco sheets or the tobacco sheets with uneven edge thicknesses, and provide a guarantee for the formation of the homogenized tobacco sheets.

In the homogenized tobacco flake production system provided by the present invention, in the powder spreading device, the air-pressure ejection nozzle and the vibrating screen are combined to make the powder of different formulas spread on the tobacco flakes more uniformly, thereby forming a tobacco flake with a more uniform material .

The method for producing homogenized tobacco sheets provided by the present invention increases the longitudinal and longitudinal tensile strength of the tobacco sheets by conveying and rolling the tobacco sheets in different directions, and balances the stresses in the longitudinal and transverse directions of the tobacco sheets, thereby greatly improving the tobacco sheets Processing performance.

In the method for producing homogenized tobacco sheets provided by the present invention, the tobacco sheets are laminated through a lamination device and then rolled again in another direction, which can not only balance the stresses in the vertical and horizontal directions of the tobacco sheets, but also can repair Tobacco flakes with broken or uneven edge thicknesses formed by previous rolling are pressed to form uniform tobacco flakes.

Description of the drawings

Figure 1: A schematic diagram of the structure of a device for rolling tobacco sheets in the prior art.

Figure 2: A front view of a homogenized tobacco sheet production system provided in an embodiment of the present invention.

Figure 3: A top view of a homogenized tobacco sheet production system provided in an embodiment of the present invention.

Fig. 4: A schematic structural diagram of a dusting device of a homogenized tobacco sheet production system provided in an embodiment of the present invention.

Fig. 5: A schematic diagram of the structure of the air ejection nozzle and the screw hose of the powder spreading device of the homogenized tobacco sheet production system provided in the embodiment of the present invention.

Fig. 6: A flowchart of a method for producing homogenized tobacco sheets provided in an embodiment of the present invention.

Reference signs: 1. Mixing tank; 2. First conveyor roller pressing device; 21, First conveyor belt conveyor; 22, First roller press; 23, Second conveyor belt conveyor; 24, Second roller press; 25. The third conveyor belt conveyor; 26. The third roller press; 27. The fourth conveyor belt conveyor; 3. Laminating device; 31. Buffer trolley; 32. Placing trolley; 33. Control mechanism; 34. Output mechanism; 341. Output belt; 4. Cutting device; 5. Powder spreading device; 51. Powder spreading mechanism; 511. Powder spreading bin; 512. Air ejection nozzle; 5121, receiving chamber; 51211. Receiving chamber entrance; 5122, mixing Chamber; 51221, suction port; 5123, diffuser chamber; 513, vibrating screen; 514, vibration motor; 52, powder silo; 521, screw hose; 5211, opening; 522, first motor; 523, wall scraping part 524. Vacuum pump; 525. Second motor; 526. Stirring rod; 527. Powder storage bin; 6. Second conveying roller press device; 61. Fourth roller press; 62. Fifth roller press; 63. Six-roller press; 64, the fifth conveyor belt; 65, the sixth conveyor belt; 66, the seventh conveyor belt; 67, the eighth conveyor belt.

It should be noted that these drawings and text descriptions are not intended to limit the scope of the present invention in any way, but to explain the concept of the present invention for those skilled in the art by referring to specific embodiments.

Detailed ways

In order to make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention. , But not used to limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the pointed device or element must have a specific orientation or a specific orientation. The structure and operation cannot therefore be understood as a limitation of the present invention.

In the description of the present invention, it should be noted that the terms "installed", "connected", and "connected" should be understood in a broad sense unless otherwise clearly specified and limited. For example, they can be fixed or detachable. Connected or integrally connected; it can be directly connected or indirectly connected through an intermediary. For those of ordinary skill in the art, the specific meanings of the above-mentioned terms in the present invention can be understood in specific situations.

Generally, the roll-pressing method of reconstituted tobacco sheet technology firstly puts a certain mesh of tobacco powder, a certain proportion of moisturizer, water, and spices into the mixing tank 1, or puts other raw materials different from the above formula into the mixing tank 1. , After stirring and mixing, the smoke mass is made, and the conveyor belt conveys the smoke mass to the roller press. The roller press rolls the smoke mass into a thin sheet, in order to obtain the tobacco with a certain tensile strength that meets the requirements. Sheets, tobacco sheets can be rolled in multiple stages. As shown in Figure 1, the smoke masses from the mixing tank 1 are conveyed to the first roller press 22 through the first conveyor belt 21 for rolling to form tobacco sheets. It is conveyed by the second conveyor belt 23 to the second roller press 24 to be rolled again to increase the tensile strength, and then is conveyed to the third roller press 26 by the third conveyor belt 25 for the third time of roller pressing. After the pressing is completed, the fourth conveyor belt 27 is conveyed to the next process. The number of times of rolling the tobacco sheet is set according to actual needs. The above-mentioned rolling of the tobacco sheet for multiple times has the same rolling direction, which only enhances the longitudinal tensile strength of the tobacco sheet, but its transverse tensile strength is not correspondingly enhanced, resulting in a large difference in the longitudinal and transverse stress of the tobacco sheet, which is not conducive to the follow-up Rewinding and unwinding, rewinding, slitting, and silk formation. After enhancing the longitudinal tensile strength of the tobacco sheet, it is also necessary to enhance its transverse tensile strength to form a homogenized tobacco sheet and improve the processing performance of the tobacco sheet.

As an embodiment, the present invention provides a homogenized tobacco sheet production system, as shown in Figures 2 and 3, the production system includes:

The conveying roller pressing device is used for conveying and pressing the tobacco sheet.

The laminating device 3 is connected with the conveying roller pressing device, and is used for laminating the tobacco sheets and changing the conveying direction of the tobacco sheets.

In the embodiment of the present invention, the conveying roller pressing device includes a first conveying roller pressing device 2 and a second conveying roller pressing device 6, and the lamination device 3 is arranged between the first conveying roller pressing device 2 and the second conveying roller pressing device 6 In the meantime, the first conveying and rolling device 2 is used for conveying and rolling the tobacco sheet in the first direction and conveying the rolled tobacco sheet to the laminating device 3, and the second conveying and rolling device 6 is used for conveying and rolling along the second direction. The tobacco sheet processed by the laminating device 3 is conveyed and rolled, and the first direction and the second direction are intersected or parallel, and the preferred solution is that the first direction and the second direction intersect.

Specifically, the first conveying and rolling device 2 conveys and rolls the tobacco sheet in a first direction, so that the tobacco sheet has a certain longitudinal tensile strength, and the second conveying and rolling device 6 conveys and rolls the tobacco sheet in a second direction to make the tobacco sheet The sheet has a certain transverse tensile strength, where the first direction refers to the direction of the longitudinal tensile strength of the tobacco sheet, and the second direction refers to the direction of the transverse tensile strength of the tobacco sheet, that is, the first direction is the longitudinal direction, and the second The direction is horizontal. The tobacco sheet is rolled in longitudinal and transverse directions successively, so that the tobacco sheet has both longitudinal and transverse tensile strength, that is, the longitudinal and transverse stresses of the tobacco sheet are balanced, thereby forming a homogenized tobacco sheet, which improves the processing performance of the tobacco sheet. Increase.

The first direction and the second direction are two different directions. In order to convey and roll tobacco sheets in two different directions, the first conveying roller pressing device 2 and the second conveying roller pressing device 6 must be provided with Device for reversing the tobacco sheet; in the embodiment of the present invention, the device for reversing the tobacco sheet is the laminating device 3. The laminating device 3 can not only reverse the direction of the tobacco sheet processed by the first conveying and rolling device 2, but It is also possible to laminate the above-mentioned tobacco sheets; after the first conveying and rolling device 2 rolls the tobacco sheets in the first direction, some of the tobacco sheets may be damaged or have uneven edge thickness. After the lamination, the second conveying and rolling device 6 rolls the laminated tobacco sheet in the second direction, which can effectively repair the above-mentioned defects of the tobacco sheet and form a uniform tobacco sheet.

Rolling the tobacco sheet in the same direction multiple times can increase the tensile strength of the tobacco sheet in this direction. In order to enhance the tensile strength of the tobacco sheet in the longitudinal and transverse directions, the first conveying and rolling device 2 includes at least two sub-conveying and rolling devices. Each sub-conveying roller device sequentially conveys and rolls the tobacco sheet in the first direction. The second conveying roller device 6 includes at least two sub-conveying roller devices, and the two sub-conveying roller devices sequentially convey the tobacco sheet in the second direction. Rolling. The sub-conveying roller pressing device includes a conveyor belt and a roller press, and the rollers of the roller pressing at the end of the first conveying roller pressing device 2 and/or the end of the second conveying roller pressing device 6 are provided with patterns.

Specifically, the first conveyor roller pressing device 2 is a multi-stage conveyor roller pressing device, including a first conveyor belt 21, a first roller press 22, a second conveyor belt 23, and a second roller press 24, which are connected in sequence. The third conveyor belt 25, the third roller press 26, and the fourth conveyor belt 27. The direction from the first conveyor belt 21 to the fourth conveyor belt 27 is the first direction. Among them, in the mixing tank 1 The smoke mass produced after stirring and mixing is conveyed to the belt of the first conveyor belt 21, and is conveyed by the first conveyor belt 21 to the first roller press 22 for rolling, forming tobacco flakes and falling into the second conveyor On the belt of the belt conveyor 23, the second conveyor belt conveyor 23 transports the tobacco sheet to the second roller press 24 for rolling again, and then transports it through the third conveyor belt conveyor 25 to the third roller press 26 for rolling. The fourth conveyor belt 27 conveys the tobacco sheets rolled by the third roller press 26 to the laminating device 3. The first conveyor belt 21, the second conveyor belt 23, the third conveyor belt 25 and the fourth conveyor belt The conveying direction of the conveyor belt 27 is the same, and the rolling directions of the first roller press 22, the second roller press 24, and the third roller press 26 are the same. In the same way, the second conveying roller pressing device 6 is a multi-stage conveying roller pressing device, including a fifth conveyor belt 64, a fourth roller press 61, a sixth conveyor belt 65, and a fifth roller press 62, which are connected in sequence. The seventh conveyor belt 66, the sixth roller press 63, the eighth conveyor belt 67, the direction from the fifth conveyor belt 64 to the eighth conveyor belt 67 is the second direction, and the fifth conveyor belt 64 will overlap The layered tobacco sheet is transported to the fourth roller press 61 for rolling, and the eighth conveyor belt 67 transports the tobacco sheet after the sixth roller press 63 to the next process. The fifth conveyor belt 64, The conveying directions of the sixth conveyor belt conveyor 65, the seventh conveyor belt conveyor 66 and the eighth conveyor belt conveyor 67 are the same, and the rolling directions of the fourth roller press 61, the fifth roller press 62 and the sixth roller press 63 are the same .

The first conveying roller pressing device 2 and the second conveying roller pressing device 6 can be set to two-stage conveying roll pressing, three-stage conveying roll pressing or four-stage conveying roll pressing according to actual needs. The roller is provided with a pattern, so that after being rolled by the pressing roller, the surface area of the tobacco sheet increases, thereby increasing the surface area for heating the cigarette, increasing the air permeability of the cigarette, reducing the suction resistance of the cigarette, and solving the problem of smoking. The problem of the weak taste of cigarettes. The present invention is set as a three-stage conveying roller press, so a pattern is provided on one roller of the third roller press 26 of the first conveying roller press device 2, and one of the sixth roller press 63 of the second conveying roller press device 6 The pressure roller is also provided with patterns, and the shape of the pattern can be set according to actual needs.

The stacking device 3 includes a distributing trolley 32, an output mechanism 34, and a control mechanism 33. The running direction of the distributing trolley 32 is consistent with the first direction. The output mechanism 34 is arranged below the output end of the distributing trolley 32. The running directions of 32 intersect, and the preferred solution is that the two running directions are perpendicular to each other. The distributing trolley 32 moves back and forth for conveying the tobacco sheets rolled by the first conveying roller pressing device 2 to the output mechanism 34, so that the tobacco sheets are laminated. The output mechanism 34 is used to convey the received tobacco sheet to the second conveying roller pressing device 6, and the control mechanism 33 controls the operation of the cloth cart 32 and the output mechanism 34. The tobacco flakes are conveyed and rolled by the first conveying roller pressing device 2 multiple times and then transported to the conveyor belt of the cloth trolley 32. The cloth trolley 32 reciprocates to transport the tobacco flakes to the output belt 341 of the output mechanism 34, so that the tobacco flakes are moved along the conveyor belt 341 of the output mechanism 34. The first direction is laid on the output belt 341 and stops running in the first direction. The running direction of the output mechanism 34 intersects with the running direction of the distributing trolley 32. The running speed of the conveying belt of the distributing trolley 32 is higher than the running speed of the output belt 341 of the output mechanism 34. Fast, so as to realize the stacking and reversing of tobacco sheets.

The second conveying roller pressing device 6 can be arranged in front of the output direction of the output mechanism 34 of the laminating device 3, so that the first direction and the second direction intersect; if the site is relatively narrow, the first conveying roller pressing device 2 and the second The conveying roller pressing device 6 is arranged in parallel, as long as a turning conveyor belt is installed between the output mechanism 34 of the lamination device 3 and the second conveying roller pressing device 6.

In order to make the tobacco sheets have a buffering process before lamination, a buffering carriage 31 is also provided above the cloth trolley 32, which is used to receive the tobacco sheets rolled by the first roller pressing device and transport the received tobacco sheets to The cloth trolley 32. Specifically, the tobacco flakes rolled by the third roller press 26 are transported by the fourth conveyor belt 27 to the conveyor belt of the buffer trolley 31, and the buffer trolley 31 reciprocates to transport the tobacco flakes to the conveyor belt of the cloth trolley 32 , The speed of the conveyor belt of the buffer trolley 31 can be determined according to the ratio of its stroke to the stroke of the fabric trolley 32. Generally, the stroke L1 of the buffer trolley 31 can be set to a quarter of the stroke L2 of the fabric trolley 32, that is, L1=L2/ 4. The reciprocating speed of the distributing trolley 32 is the same, and the speed is the same as the discharge speed of the third roller press 26.

In the embodiment of the present invention, the laminated tobacco sheets can take two different forms, one is that each layer is a separate and independent tobacco sheet, the other is that each layer of tobacco sheet is a continuous whole, and the middle There is no disconnection. Specifically, before laminating the tobacco sheets, on the cloth trolley 32 or on the fourth conveyor belt 27, the cutting device 4 cuts the tobacco sheets in the direction intersecting the first direction to obtain the tobacco sheets with the length required for the lamination. , And then laminate the tobacco sheets that meet the required length of the lamination, or, without cutting the tobacco sheets, directly laminate the continuous tobacco sheets. The tobacco sheets are in a zigzag shape and arranged on the output belt 341.

The present invention also includes a powder spreading device 5, which is arranged above the distributing trolley 32 or above the output mechanism 34, and is used to spread powder of a specific formula on the tobacco sheet. The dusting includes sprinkling fragrant particles and/or dusting powder particles. By sprinkling different formulations of fragrant particles and/or different formulations of tobacco powder particles, one production line can produce tobacco flakes of different formulations, saving space, saving equipment, improving equipment utilization, and improving economic benefits.

In the embodiment of the present invention, the dusting device 5 can be arranged above the middle of the distributing trolley 32. When the tobacco flakes are running with the conveyor belt of the distributing trolley 32, the dusting device 5 will sprinkle the fragrant particles and/or smoke powder particles on the surface of the tobacco flakes. , Or, the dusting device 5 is arranged above the front end of the distributing trolley 32 and above the beginning of the output belt 341 of the laminating device 3. During the lamination process, the dusting device 5 will sprinkle the fragrant particles and/or smoke powder particles on each layer. On the surface of the tobacco sheet, or, the powder spreading device 5 is arranged above the middle of the output belt 341 of the laminating device 3, and spreads fragrant particles and/or smoke powder particles on the laminated tobacco sheet.

The timing of the dusting is different, the effect produced is also different. For example, dusting the tobacco sheets before or during the lamination process, that is, the dusting device 5 is installed above the cloth trolley 32 to sprinkle flavor particles and/or tobacco powder particles on the surface of each layer of tobacco sheets, and then roll After pressing, the fragrant particles and/or tobacco powder particles will be integrated with the tobacco flakes to make the material of the tobacco flakes more uniform; or, after the tobacco flakes are reversibly conveyed, the tobacco flakes are dusted, that is, the dusting device 5 is set Above the output mechanism 34, sprinkle the flavor particles and/or tobacco powder particles on the surface of the laminated tobacco sheet. After rolling, the flavor particles and/or tobacco powder particles will be firmly bonded to the surface of the tobacco sheet. , So that the tobacco fragrance is released more fully at the smoking front end; moreover, the above two kinds of dusting can increase the air permeability of the tobacco sheet, reduce the resistance of tobacco products, and make it easier to smoke tobacco products.

As shown in Figure 4, the powder spreading device 5 includes a powder silo 52, an air storage tank, and a powder spreading mechanism 51. The powder silo 52 is used to hold powder of a specific formula, the air storage tank is used to store compressed air, and the powder spreading mechanism 51. 51 is located below the powder silo 52, including a powder silo 511. The upper end of the powder silo 511 is equipped with a pneumatic ejection nozzle 512 communicating with the powder silo 52 and the gas storage tank, and a vibrating screen 513 is installed at the lower end. The powder sprayed by the spray nozzle 512 is spread on the tobacco sheet through the vibrating screen 513. Two vibrating motors 514 are arranged in parallel on opposite sides of the vibrating screen 513 to make the vibrating screen 513 move linearly.

A screw hose 521 is installed at the lower end of the powder silo 52, an opening 5211 is provided on the lower end of the screw hose 521, a suction port 51221 is provided on the side wall of the pressure injection nozzle 512, the screw hose 521 and the pressure injection nozzle 512 The opening 5211 and the suction port 51221 are connected through a connecting pipe; the screw hose 521 is provided with a stirring rod 526, the central axis of the stirring rod 526 coincides with the central axis of the screw hose 521, and the stirring rod 526 is connected to the driving mechanism. The powder silo 52 is respectively communicated with a vacuum pump 524 for vacuuming the powder silo 52 and a powder storage silo 527 for storing powder.

Specifically, as shown in FIG. 5, the compressed air ejection nozzle 512 includes a receiving chamber 5121, a mixing chamber 5122, and a diffuser chamber 5123 that are connected in sequence. The exit of the pressure chamber 5123. The receiving chamber 5121 goes inward from the inlet, and its inner diameter becomes smaller. The compressed air ejection nozzle 512 and the gas storage tank are connected to the receiving chamber entrance 51211 through a connecting pipe, and the receiving chamber 5121 receives the gas introduced from the gas storage tank. The side wall of the mixing chamber 5122 is provided with a suction port 51221. The screw hose 521 arranged at the lower end of the powder bin is connected to the suction port 51221 of the mixing chamber 5122 through the connecting pipe and the compressed ejection nozzle 512. The powder is sucked through the suction port 51221 The compressed air ejection nozzle 512 is mixed with gas. The inner diameter of the diffuser chamber 5123 is reduced from the outlet, and the outlet of the diffuser chamber 5123 is composed of a plurality of small holes, and the plurality of small holes can be arranged according to the actual required spray angle and spray length. A plurality of compressed air ejection nozzles 512 can be arranged at the upper end of the powder-spreading bin 511 to adapt to tobacco sheets of different widths.

The air storage tank stores compressed air and communicates with the receiving chamber 5121 of the compressed air ejection nozzle 512 through a pipeline, and provides high-pressure gas for the compressed air ejection nozzle 512. The pressure and flow rate of the compressed air can be adjusted as required. The gas storage tank can be connected with the surge tank, so that the adjusted gas storage tank has a constant pressure and constant flow; if the volume of the gas storage tank is large enough, it does not need to be connected to the surge tank , Can also maintain constant voltage and constant current.

The powder silo 52 is arranged above the powder spreading mechanism 51 and is used to hold powder of a specific formula. The powder includes smoke powder particles and fragrant particles. The powder silo 52 holds different powders according to the actual needs of the production line. The powder silo 52 is respectively connected to the powder storage silo 527 and the vacuum pump 524. The vacuum pump 524 evacuates the powder silo 52, so that the powder in the powder storage silo 527 is continuously sucked into the powder silo 52, and the powder passes through the powder silo 52. The screw hose 521 at the lower end of the bin 52 enters the compressed air ejection nozzle 512, so as to realize the airtight storage and circulation of the powder. When the tobacco flakes are dusted, even if the weather is humid, the powder of these specific formulas will not be caused by moisture absorption. Blocking material. In addition, the powder silo 52 is also provided with a wall scraping part 523. The wall scraping part 523 is connected to the first motor 522. The first motor 522 drives the wall scraping part 523 to scrape the powder silo 52 to prevent the powder from sticking to the powder. The inner wall of the silo 52.

A screw hose 521 is installed at the outlet of the lower end of the powder silo 52. An opening 5211 is provided on the side wall of the lower end of the screw hose 521. A connecting pipe is arranged between the screw hose 521 and the pressure injection nozzle 512. The hose 521 is connected to the opening 5211 of the lower end of the screw hose 521, and the other end is connected to the pressure injection nozzle 512 at the suction port 51221 of the mixing chamber 5122 of the pressure injection nozzle 512, so that the powder silo 52 is connected to the pressure injection nozzle 512. The air ejection nozzle 512 is connected, and the powder is sucked into the air ejection nozzle 512. The screw hose 521 is provided with a stirring rod 526, and the second motor 525 drives the stirring rod 526 to rotate to prevent the powder from stagnating in the screw hose 521 and causing blockage; and the second motor 525 can be infinitely variable speed, which can be adjusted according to actual needs. Control the powder delivery volume.

After the powder spreading device 5 is activated, the compressed air enters the receiving chamber 5121 of the compressed ejection nozzle 512. Under the action of the air jet, negative pressure is formed near the suction port 51221 of the mixing chamber 5122, so that the powder silo 52 flows into the screw hose The powder of 521 is sucked into the mixing chamber 5122. The powder is mixed with compressed air and then enters the diffuser chamber 5123. In the diffuser chamber 5123, the airflow pressure increases and the speed decreases. Each small hole is sprayed out and evenly sprayed on the vibrating screen 513 at the lower end of the powder spreading bin 511. The vibrating screen 513 moves linearly under the action of two parallel vibration motors 514, so that the powder is evenly spread on the tobacco flakes and avoids The powder is distributed in dots.

Due to process requirements, each dusting is generally between 35 and 200 meshes. Due to the poor fluidity of the powder, the general dusting device 5 dusts the powder, the powder is easy to stick, and the material uniformity of the tobacco flakes is reduced. In the powder spreading device 5 of the present invention, the compressed air ejection nozzle 512 and the vibrating screen 513 are combined, the powder is fully dispersed and not adhered through the compressed air ejection nozzle 512, and then the powder is continuously and evenly scattered on the tobacco through the linear motion of the vibrating screen 513 On the sheet, so that the powder of different formulas spread on the tobacco sheet is more uniform, and the material of the tobacco sheet is more uniform.

As an embodiment, the present invention provides a method for producing homogenized tobacco sheets, as shown in Figs. 1 to 3 and 6, the method includes:

The rolled tobacco sheet is conveyed in the first direction.

Reversing.

The rolled tobacco sheet is conveyed in the second direction.

In the embodiment of the present invention, the tobacco sheet is rolled in two different directions to balance the vertical and horizontal stresses of the tobacco sheet. It includes the following steps:

S1. Conveying the rolled tobacco sheet along the first direction;

S2, laminating the rolled tobacco sheet;

S3. Reversing and conveying tobacco slices;

S4. Conveying the rolled tobacco sheet along the second direction.

Specifically, the first conveying and rolling device 2 conveys and rolls the tobacco sheet in a first direction, so that the tobacco sheet has a certain longitudinal tensile strength, and the second conveying and rolling device 6 conveys and rolls the tobacco sheet in a second direction to make the tobacco sheet The sheet has a certain transverse tensile strength, where the first direction refers to the direction of the longitudinal tensile strength of the tobacco sheet, and the second direction refers to the direction of the transverse tensile strength of the tobacco sheet, that is, the first direction is the longitudinal direction, and the second The direction is horizontal. As shown in Figures 3 and 4, the smoke masses are conveyed by the first conveyor belt 21 to the first roller press 22 and are rolled into tobacco sheets, and then sequentially conveyed to the second conveyor belt 23, the second roller press 24, and the second roller press 22. The third conveyor belt 25, the third roller press 26, the fourth conveyor belt 27, the buffer trolley 31, and the cloth trolley 32, which are conveyed in the first direction; the first roller press 22 rolls the cigarette masses to form tobacco flakes , The second roller press 24 and the third roller press 26 respectively continue to roll the tobacco sheet, which is rolling along the first direction. Similarly, from the output belt 341 to the fourth roller press 61, the fifth roller press 62, and the sixth roller press 63, the tobacco sheet is conveyed and rolled along the second direction.

In the present invention, by laminating the tobacco sheets, the tobacco sheets stop running in the longitudinal direction, which provides a guarantee for the subsequent transverse rolling of the tobacco sheets. Specifically, after conveying the rolled tobacco sheet in the first direction, the tobacco sheet is conveyed to the laminating device 3. Due to the characteristics of the laminating device 3, after the laminating action is performed, the tobacco sheet is laid on the laminating device along the longitudinal direction. 3 The output belt 341 of the output mechanism 34 stops running in the longitudinal direction, and the running direction of the output belt 341 of the stacking device 3 intersects the longitudinal direction, that is, the output belt 341 of the stacking device 3 runs in the transverse direction, thereby reversing the conveyance of tobacco Flake, so that the tobacco flakes can be rolled in the transverse direction. The second conveying roller pressing device 6 can be installed according to the specific site. If the site is relatively large, it can be installed along the running direction of the output mechanism 34 of the stacking device 3. As shown in Fig. 4, the first conveying roller pressing device 2 is located in the same direction as the The directions of the two conveying roller pressing devices 6 intersect perpendicularly, that is, the first direction and the second direction intersect; if the site is relatively small, it can be installed in a direction parallel to the direction of the first conveying roller pressing device 2, as long as the stacking device 3 A turning conveyor belt conveyor may be provided between the output mechanism 34 and the second conveying roller pressing device 6.

In S1, the tobacco sheet can be conveyed and rolled once or multiple times in the first direction according to actual needs. The multiple conveyance rolls include two or more conveyance rolls. The preferred solution is to perform multiple conveyance rolls. Press to increase the longitudinal tensile strength of the tobacco sheet. In the same way, in S4, the tobacco sheet can be conveyed and rolled once or multiple times in the second direction according to actual needs. The preferred solution is to perform multiple conveying and rolling to increase the transverse tensile strength of the tobacco sheet.

The stacking device 3 can be set as a horizontal stacking device 3 or a slice stacking device 3, and the slice stacking device 3 is taken as an example for description.

The slicing laminating device 3 includes a buffer trolley 31, a distributing trolley 32, an output mechanism 34, and a control mechanism 33. The buffer trolley 31 is arranged above the distributing trolley 32, and the output mechanism 34 is arranged below the output end of the distributing trolley 32. The operation of the output mechanism 34 The direction intersects the running direction of the distributing trolley 32. The preferred solution is that the two running directions are perpendicular to each other. The control mechanism 33 controls the operation of the buffer trolley 31, the distributing trolley 32 and the output mechanism 34. Tobacco flakes are transported to the conveyor belt of the buffer trolley 31 after being rolled by the third roller press 26. The buffer trolley 31 reciprocates to transport the tobacco flakes to the conveyor belt of the cloth trolley 32, and the cloth trolley 32 reciprocates to transport the tobacco flakes To the output belt 341 of the output mechanism 34, the running speed of the conveyor belt of the cloth trolley 32 is faster than the running speed of the output belt 341 of the output mechanism 34, so as to realize the stacking of tobacco sheets. The buffer trolley 31 mainly acts as a buffer, and the speed of its conveyor belt can be determined according to the ratio of its stroke to the stroke of the fabric trolley 32. Generally, the stroke L1 of the buffer trolley 31 can be set to a quarter of the stroke L2 of the fabric trolley 32 , That is, L1=L2/4. The reciprocating speed of the distributing trolley 32 is the same, and the speed is the same as the discharge speed of the third roller press 26.

As an alternative, the buffer trolley 31 may not be provided, and the tobacco sheet is directly transported to the distributing trolley 32 after being rolled by the third roller press 26.

In step S2, after the tobacco sheet is conveyed to the laminating device 3, the tobacco sheet may be laminated by the laminating device 3, or the tobacco sheet may not be laminated, but only the conveying direction of the tobacco sheet is changed, for example, A cutting device 4 is arranged above the cloth trolley 32 to cut the tobacco sheet into a tobacco sheet of a required length in the transverse direction, and change the running speed of the output belt 341 so that the two tobacco sheets are just laid on the output belt 341 next to each other. In the embodiment of the present invention, the laminating device 3 is used to laminate tobacco sheets. After the tobacco sheets are rolled in the first direction, some of the tobacco sheets may be damaged or have uneven edge thickness. After the tobacco sheets are laminated, the laminated tobacco sheets are rolled in the second direction. Effectively repair the above-mentioned defects of the tobacco sheet and form a uniform tobacco sheet.

In the embodiment of the present invention, the laminated tobacco sheets can take two different forms, one is that each layer is a separate and independent tobacco sheet, the other is that each layer of tobacco sheet is a continuous whole, and the middle There is no disconnection. That is, step S2 further includes cutting the tobacco sheet in a direction intersecting the first direction to obtain a tobacco sheet meeting the required length of the lamination, and then laminating the tobacco sheet meeting the required length of the lamination, or step S2 In this method, continuous tobacco sheets are directly laminated.

Specifically, before laminating the tobacco sheets, as shown in FIG. 3, on the cloth trolley 32 or on the fourth conveyor belt 27, cut the tobacco sheets in a direction intersecting the first direction to obtain a length that meets the requirements of the laminate. Laminate the tobacco sheets that meet the required length of the lamination, or, without cutting the tobacco sheets, directly laminate the continuous tobacco sheets. The tobacco sheets are in a zigzag shape and arranged on the output belt 341. superior.

In the embodiment of the present invention, the tobacco sheet is knurled after rolling:

Step S1 and step S2 further include: S11, knurling the tobacco sheet.

And/or, after step S4, the following step is further included: S5, knurling the tobacco sheet.

In the present invention, the conveying roller pressing of the tobacco sheet in the first direction and the second direction are both multi-stage conveying roller pressing, and the knurling is arranged in the last stage of the multi-stage conveying roller pressing. Specifically, a pattern is provided on a pressing roller of the third roller press 26 of the first conveying and roller pressing device 2, and a pressing roller of the sixth roller press 63 of the second conveying and roller pressing device 6 is also provided with a pattern, When the third roller press 26 and the sixth roller press 63 roll the tobacco sheet, since one of the rollers is provided with a pattern, the pattern is rolled on the surface of the tobacco sheet during the rolling process. In this way, the surface area of the tobacco sheet is increased after being rolled by the patterned pressing roller, thereby increasing the surface area for heating of the cigarette, increasing the air permeability of the cigarette, reducing the resistance of the cigarette, and solving the problem of smoking when the cigarette is just smoked. The problem of light taste.

In the embodiment of the present invention, it further includes a step of dusting the tobacco flakes. The dusting step is before step S4 and after step S1, and the dusting includes dusting fragrant particles and/or dusting tobacco powder particles. By sprinkling different formulations of fragrant particles and/or different formulations of tobacco powder particles, one production line can produce tobacco flakes of different formulations, saving space, saving equipment, improving equipment utilization, and improving economic benefits.

The timing of the dusting is different, the effect produced is also different. For example, dusting the tobacco flakes before or during the lamination process, sprinkling the flavor particles and/or tobacco powder particles on the surface of each layer of tobacco flakes, after rolling, the flavor particles and/or tobacco powder particles will be Integrate with the tobacco flakes to make the material of the tobacco flakes more uniform; or, after the tobacco flakes are reversibly conveyed, the tobacco flakes are dusted, and the fragrant particles and/or tobacco powder particles are sprinkled on the surface of the laminated tobacco flakes, After being rolled, the aroma particles and/or tobacco powder particles will be firmly bonded to the surface of the tobacco sheet, so that the tobacco aroma can be released more fully at the tip of smoking; moreover, the above two kinds of dusting can increase the tobacco sheet Breathability reduces the resistance of tobacco products, making it easier to smoke tobacco products.

In the embodiment of the present invention, the tobacco flakes are dusted by the dusting device 5. The dusting device 5 is arranged above the middle of the distributing trolley 32. When the tobacco flakes are running with the conveyor belt of the distributing trolley 32, the dusting device 5 sprinkles the fragrant particles and/or smoke powder particles on the surface of the tobacco flakes, or the dusting device 5 It is arranged above the end of the distributing trolley 32 and above the beginning of the output belt 341 of the laminating device 3. During the laminating process, the dusting device 5 sprinkles the fragrant particles and/or tobacco powder particles on the surface of each layer of tobacco sheet, or, The powder device 5 is arranged above the middle of the output belt 341 of the stacking device 3, and sprinkles the fragrant particles and/or smoke powder particles on the laminated tobacco flakes.

Different dusting methods can be used to dust the tobacco flakes according to actual needs. For example, the tobacco flakes can be dusted by a combination of roller brush and vibration. The powder spreading device 5 is provided with two motors. One motor drives the brush roller to rotate and extrude the fragrance particles and/or smoke powder particles so that the fragrance particles and/or smoke powder particles are ejected from the mesh, and the other motor is vibrating The motor 514 drives the mesh to vibrate with a small amplitude and high frequency, so that the aroma particles and/or tobacco powder particles are evenly spread on the tobacco sheet.

It is also possible to dust the tobacco flakes by a combination of the air jet spraying method and the vibrating sieving method. A silo containing fragrant particles and/or smoke powder particles is arranged above the powder spreading device 5. The materials in the silo are sprayed out through the air ejection nozzle 512 and fall onto the vibrating screen 513 of the powder spreading device 5. The vibrating screen 513 moves linearly under the action of two vibration motors 514 placed in parallel, so that the aroma particles and/or tobacco powder particles are evenly spread on the tobacco flakes.

In the present invention, by rolling the tobacco sheet in the longitudinal and transverse directions, the gap in the extensibility of the tobacco sheet in the longitudinal and transverse directions is reduced, and the tobacco sheet after subsequent baking will be smoother; The vertical and horizontal tensile strength of the tobacco sheet is balanced, thereby greatly improving the processing performance of the tobacco sheet, which is conducive to subsequent unwinding, rewinding, slitting, and silk formation; moreover, multiple times along the longitudinal and transverse directions After rolling, the tobacco flakes are more uniform, thereby providing a guarantee for the smoke stability during smoking.

The above are only the preferred embodiments of the present invention and do not limit the present invention in any form. Although the present invention has been disclosed as above in preferred embodiments, it is not intended to limit the present invention. Any technology familiar with this patent Without departing from the scope of the technical solution of the present invention, when a person can use the above-mentioned technical content to make some changes or modification into equivalent embodiments with equivalent changes, any content that does not deviate from the technical solution of the present invention is based on the present invention. Any simple modifications, equivalent changes, and modifications made to the above embodiments by technical essence still fall within the scope of the present invention.

Claims (20)

1. A homogenized tobacco sheet production system, which is characterized in that it comprises:

   Conveying roller pressing device for conveying and roller pressing the tobacco sheet;

   The laminating device is connected with the conveying roller pressing device and is used for laminating the tobacco sheets and changing the conveying direction of the tobacco sheets.
2. The homogenized tobacco sheet production system according to claim 1, wherein the conveying roller pressing device comprises a first conveying roller pressing device and a second conveying roller pressing device, and the laminating device is arranged on the first conveying roller pressing device. Between a conveying roller pressing device and a second conveying roller pressing device;

   The first conveying and rolling device is used for conveying and rolling the tobacco sheet in the first direction and conveying the rolled tobacco sheet to the laminating device;

   The second conveying and rolling device is used for conveying and rolling the tobacco sheet processed by the laminating device in the second direction.
3. The homogenized tobacco sheet production system according to claim 2, wherein the first conveying roller pressing device comprises at least two sub-conveying roller pressing devices, and the two sub-conveying roller pressing devices are aligned in the first direction in sequence. Tobacco flakes are conveyed and rolled;

   The second conveying roller pressing device includes at least two sub-conveying roller pressing devices, and the two sub-conveying roller pressing devices sequentially convey and roll the tobacco sheet in the second direction;

   Preferably, the first direction and the second direction intersect.
4. The homogenized tobacco sheet production system according to claim 3, wherein the sub-conveying roller pressing device comprises a conveyor belt conveyor and a roller press, located at the end of the first conveying roller pressing device and/or the second roller pressing device. The pressing roller of the roller press at the end of the conveying roller pressing device is provided with a pattern.
5. A homogenized tobacco sheet production system according to any one of claims 2-4, wherein the stacking device comprises a distributing trolley and an output mechanism, the output mechanism is arranged below the output end of the distributing trolley, and the output mechanism The running direction intersects with the running direction of the placing trolley;

   The cloth trolley moves back and forth, and is used to convey the tobacco sheets rolled by the first conveying roller pressing device to the output mechanism, so that the tobacco sheets are laminated;

   The output mechanism is used for conveying the received tobacco sheet to the second conveying roller pressing device;

   Preferably, the lamination device further includes a buffer trolley, which is arranged above the cloth trolley, and is used to receive the tobacco sheet rolled by the first rolling device and transport the received tobacco sheet to the cloth trolley.
6. A homogenized tobacco sheet production system according to claim 5, further comprising a dusting device, the dusting device is arranged above the cloth trolley or above the output mechanism for spreading specific Formula powder.
7. The homogenized tobacco sheet production system according to claim 6, wherein the dusting device comprises:

   Powder silo, used to hold the powder of specific formula;

   Air storage tank, used to store compressed air;

   The dusting mechanism is located below the powder silo, including the dusting silo. The upper end of the dusting silo is equipped with air-pressure ejection nozzles respectively connected with the powder silo and the gas storage tank, and the lower end is equipped with a vibrating screen. The sprinkled powder is spread on the tobacco flakes through a vibrating screen.
8. The homogenized tobacco sheet production system according to claim 7, wherein a screw hose is installed at the lower end of the powder silo; A suction port is provided on the upper part, and the screw hose and the compressed air ejection nozzle are connected to the opening and the suction port through a communication pipe;

   Preferably, one end of the compressed air ejection nozzle is connected with the gas storage tank, and the other end is provided with a plurality of small holes for the sprayed powder to flow out;

   Preferably, the screw hose is provided with a stirring rod, the central axis of the stirring rod coincides with the central axis of the screw hose, and the stirring rod is connected with the driving mechanism.
9. The homogenized tobacco sheet production system according to claim 7, wherein the powder silo is in communication with a vacuum pump for evacuating the powder silo;

   Preferably, the powder silo is in communication with a powder storage silo for storing powder.
10. The homogenized tobacco flake production system according to claim 7, wherein two vibrating motors are arranged in parallel on opposite sides of the vibrating screen for linear movement of the vibrating screen.
11. A method for producing homogenized tobacco flakes using any of the homogenized tobacco flake production systems described in claims 2-10, characterized in that it comprises:

    Conveying the rolled tobacco sheet along the first direction;

    Reversing

    The rolled tobacco sheet is conveyed in the second direction.
12. The method for producing homogenized tobacco sheets according to claim 11, wherein the method specifically comprises the following steps:

    S1. Conveying the rolled tobacco sheet along the first direction;

    S2, laminating the rolled tobacco sheet;

    S3. Reversing and conveying tobacco slices;

    S4. Conveying the rolled tobacco sheet along the second direction.
13. The method for producing a homogenized tobacco sheet according to claim 12, wherein step S2 further comprises cutting the tobacco sheet in a direction intersecting the first direction to obtain a tobacco sheet with a length that meets the required length of the lamination , And then laminate the tobacco sheet that meets the required length of the laminate.
14. The method for producing a homogenized tobacco sheet according to claim 12, wherein in step S2, the continuous tobacco sheet is directly laminated.
15. The method for producing homogenized tobacco flakes according to claim 13, characterized in that,

    In step S1, the rolled tobacco sheet is conveyed multiple times along the first direction;

    In step S4, the rolled tobacco sheet is conveyed multiple times in the second direction.
16. The method for producing homogenized tobacco sheets according to any one of claims 11-15, wherein the first direction intersects the second direction.
17. The method for producing homogenized tobacco flakes according to any one of claims 12-15, characterized in that:

    Step S1 and step S2 further include: S11, knurling the tobacco sheet;

    And/or, after step S4, the following step is further included: S5, knurling the tobacco sheet.
18. The method for producing a homogenized tobacco sheet according to claim 12, further comprising a step of dusting the tobacco sheet, the dusting step is before step S4 and after step S1, the dusting includes dusting Fragrant particles and/or dust particles.
19. The method for producing a homogenized tobacco sheet according to claim 18, wherein the tobacco sheet is dusted before or during the lamination process, and the flavor particles and/or tobacco powder particles are sprinkled on each Layer the surface of the tobacco sheet.
20. The method for producing a homogenized tobacco sheet according to claim 18, characterized in that the tobacco sheet is dusted after reversing the conveying of the tobacco sheet, and the flavor particles and/or tobacco powder particles are sprinkled on the laminated layer. The surface of the tobacco sheet.

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