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CN-118252274-B - Preparation device and preparation method of curved tobacco shreds and curved tobacco shreds

CN118252274BCN 118252274 BCN118252274 BCN 118252274BCN-118252274-B

Abstract

The invention discloses a preparation device of curved tobacco shreds, which comprises a conveying steel belt, a drying mechanism and a comb tooth mechanism, wherein the conveying steel belt is used for conveying tobacco thick paste paved on the conveying steel belt along the advancing direction of the conveying steel belt, the drying mechanism is used for drying the tobacco thick paste, the conveying steel belt penetrates through the drying mechanism along the advancing direction, the comb tooth mechanism is arranged above the conveying steel belt and comprises comb teeth and a transverse driving piece, the comb teeth face the conveying steel belt and are used for cutting the advancing tobacco thick paste, and the transverse driving piece is used for driving the comb teeth to reciprocate along the width direction of the conveying steel belt so as to obtain a plurality of cut curved tobacco thick pastes. By adopting the technical scheme, the curved tobacco shreds are easy to prepare, the adhesion condition among the curved tobacco shreds is improved, the curved tobacco shreds can reach the expected temperature quickly, and the smoking feeling of cigarettes is improved. The invention also discloses a preparation method of the curved tobacco shreds. The invention also discloses the curved cut tobacco prepared by the preparation method.

Inventors

  • ZHAO WENTAO
  • WANG XU
  • YANG JING
  • WANG CHAO

Assignees

  • 上海烟草集团有限责任公司
  • 上海新型烟草制品研究院有限公司

Dates

Publication Date
20260508
Application Date
20221226

Claims (17)

  1. 1. A device for preparing curved cut tobacco, comprising: the conveying steel belt is used for conveying the thick tobacco slurry paved on the conveying steel belt along the travelling direction of the conveying steel belt; The drying mechanism is used for drying the thick tobacco pulp, and the conveying steel belt penetrates through the drying mechanism along the advancing direction; The comb tooth mechanism is arranged above the conveying steel belt and comprises comb teeth and a transverse driving piece, one end of each comb tooth is in contact with the conveying steel belt and used for drawing off advancing tobacco thick paste, the transverse driving piece is used for driving the comb teeth to reciprocate along the width direction of the conveying steel belt so as to obtain a plurality of drawn-off bent tobacco thick pastes, and the distance between any two adjacent comb teeth is the width of the bent tobacco thick paste.
  2. 2. The device for preparing curved tobacco shreds according to claim 1, wherein the comb tooth mechanism comprises a plurality of comb teeth, the comb teeth are provided with a plurality of tooth grooves, the opening of each tooth groove is arranged towards the direction of the conveying steel belt, and the other end of each comb tooth is inserted into each tooth groove in a one-to-one correspondence manner.
  3. 3. The device for preparing curved tobacco shreds according to claim 1, wherein the distance between any two adjacent comb teeth is not more than 1.5mm.
  4. 4. The device for preparing curved tobacco shreds according to claim 1, wherein the comb teeth mechanism is disposed at a position where the moisture content of the thick tobacco slurry is 15wt% to 65wt% along the advancing direction.
  5. 5. The apparatus for producing curved tobacco shreds according to claim 1, wherein each of said teeth has an inverted triangle shape from top to bottom.
  6. 6. The apparatus for producing curved tobacco shreds according to claim 5, wherein the plane of the triangular shape is perpendicular to the width direction.
  7. 7. The apparatus for producing curved tobacco shreds according to claim 1, wherein the maximum distance of reciprocation of said comb teeth in the width direction of said conveyor belt is 8mm.
  8. 8. The apparatus for producing curved cut tobacco according to claim 1, wherein the drying mechanism comprises a first drying unit and a second drying unit, and the comb-tooth mechanism is located between the first drying unit and the second drying unit in the traveling direction of the conveyor belt.
  9. 9. The apparatus for producing curved tobacco shreds according to claim 8, wherein said first drying unit is configured to dry the moisture content of said thick tobacco slurry to 15-65 wt%, and said second drying unit is configured to dry the plurality of cut curved thick tobacco slurries to a moisture content of 2-12 wt%, to form a plurality of curved tobacco sheets.
  10. 10. The apparatus for preparing curved tobacco shreds according to claim 9, characterized in that it comprises a shoveling device for shoveling said tobacco sheets away from said conveyor belt.
  11. 11. The apparatus for producing curved cut tobacco according to claim 10, comprising a cutting device that cuts the tobacco sheet shoveled from the conveyor belt in the width direction to a curved cut tobacco of 1cm to 7cm in length.
  12. 12. A method for producing curved cut tobacco, characterized in that the curved cut tobacco is produced by using the apparatus for producing curved cut tobacco according to any one of claims 1 to 11, the apparatus comprising a conveyor belt, a drying mechanism, and a comb-tooth mechanism comprising comb teeth and a transverse driving member, the method comprising the steps of: Conveying, namely paving the tobacco thick slurry on the conveying steel belt, and conveying the tobacco thick slurry along the advancing direction of the conveying steel belt through the conveying steel belt; one end of each comb tooth is contacted with the conveying steel belt and is used for separating the advancing thick tobacco pulp, and the transverse driving piece is used for driving the comb teeth to reciprocate along the width direction of the conveying steel belt so as to obtain a plurality of separated bent thick tobacco pulp; and (3) drying, namely enabling a plurality of separated curved tobacco thick pulps to enter along the advancing direction and pass through the drying mechanism for drying, so as to obtain a plurality of curved continuous tobacco sheets.
  13. 13. The method of preparing curved tobacco shreds according to claim 12, characterized in that between said transporting and said separating step, it further comprises: and (3) drying the thick tobacco pulp for one time until the water content of the thick tobacco pulp is 15-65wt% and then separating the thick tobacco pulp by scratching.
  14. 14. The method according to claim 12, wherein the drying step is performed to obtain a plurality of cut tobacco thick slurries in a cut shape by the cut separation step, and the thick slurries are further dried to a water content of 2wt% to 12wt% to form a plurality of cut tobacco sheets in a cut shape.
  15. 15. The method of producing curved tobacco shreds according to claim 12, wherein said drying step is followed by a cutting step of cutting the curved tobacco sheet in the width direction to obtain curved tobacco shreds 1cm to 7cm long.
  16. 16. The method of claim 15, further comprising a shoveling step between the drying and cutting steps, the shoveling step comprising shoveling the tobacco sheet from the conveyor belt with a shoveling device.
  17. 17. A curved cut tobacco, characterized in that the curved cut tobacco is manufactured according to the manufacturing method of the curved cut tobacco according to claim 12, the shape of the curved cut tobacco is wavy, and the wavelength range of the wavy shape is 5mm-15mm.

Description

Preparation device and preparation method of curved tobacco shreds and curved tobacco shreds Technical Field The invention relates to the technical field of tobacco preparation and processing, in particular to a preparation device and a preparation method of curved cut tobacco and the curved cut tobacco. Background In the technical field of tobacco shred making of tobacco products, the filling density of the tobacco shreds is often reduced by increasing the crimping property of the tobacco shreds, the heating rate of the cigarettes when the cigarettes are heated is increased, and the smoking feeling of the cigarettes is further improved. In the preparation of cut tobacco, how to obtain curved cut tobacco is an important issue. Generally, the prepared cut tobacco is subjected to moisture regain, the moisture content is increased, and then the cut tobacco is dried, so that the curved cut tobacco is obtained. However, the curved cut tobacco prepared by the method is not easy to realize accurate control of the curling degree and is easy to cause the mutual adhesion of the curved cut tobacco. The tobacco shred is prepared by various processes such as a papermaking method, a rolling method and a thick slurry method, has consistent two-sided structure, is close in two-sided contraction capability when dehydrated, is difficult to curl and difficult to control the curling degree of the formed curved tobacco shred, and has the advantages that the fiber content in reconstituted tobacco is lower than that of natural leaf fibers, the moisture content is greatly improved, the moisture regain and the drying are carried out, the strength of the prepared curled tobacco shred is greatly reduced, the viscosity is increased, and the adhesion between the curled tobacco shreds is easily caused. In general, it is very difficult to change the shape of cut tobacco by performing a process treatment on the cut tobacco after shredding. Disclosure of Invention The invention aims to solve the technical problem that the curved tobacco shreds are not easy to obtain in the prior operation. The invention provides a preparation device of curved tobacco shreds, which is easy to prepare the curved tobacco shreds and improves the adhesion condition among the curved tobacco shreds. In order to solve the technical problems, the embodiment of the invention discloses a preparation device of curved tobacco shreds, which comprises a conveying steel belt, a drying mechanism and a comb tooth mechanism, wherein the conveying steel belt is used for conveying thick tobacco pulp paved on the conveying steel belt along the advancing direction of the conveying steel belt, the drying mechanism is used for drying the thick tobacco pulp, the conveying steel belt penetrates through the drying mechanism along the advancing direction, the comb tooth mechanism is arranged above the conveying steel belt and comprises comb teeth and a transverse driving piece, one end of the comb teeth is in contact with the conveying steel belt and is used for cutting the advancing thick tobacco pulp, and the transverse driving piece is used for driving the comb teeth to reciprocate along the width direction of the conveying steel belt so as to obtain a plurality of cut curved thick tobacco pulp. By adopting the technical scheme, the curved tobacco shreds are easy to prepare, and the adhesion condition among the curved tobacco shreds is improved. After the curved cut tobacco is used for making the cigarettes, more gaps are reserved among the curved cut tobacco, so that the rolling density of the cigarettes is reduced, the curved cut tobacco can reach the expected temperature quickly, and the smoking feeling of the cigarettes is improved. According to another specific embodiment of the invention, the embodiment of the invention discloses a preparation device of curved tobacco shreds, and the comb tooth mechanism comprises a plurality of comb teeth, wherein the comb teeth are provided with a plurality of tooth grooves, the opening of each tooth groove is arranged towards the direction of a conveying steel belt, and the other end of each comb tooth is inserted into each tooth groove in a one-to-one correspondence manner. According to another specific embodiment of the invention, the embodiment of the invention discloses a preparation device of curved tobacco shreds, wherein the distance between any two adjacent comb teeth is not more than 1.5mm. According to another specific embodiment of the invention, the embodiment of the invention discloses a preparation device of curved tobacco shreds, and a comb tooth mechanism is arranged at a position of 15-65wt% of the water content of the thick tobacco pulp along the advancing direction. According to another specific embodiment of the invention, the embodiment of the invention discloses a preparation device of curved tobacco shreds, and each comb tooth is in an inverted triangle shape from top to bottom. According to another embodiment of the