Heat-not-burn smoke cartridge and manufacturing method thereof

Abstract

The invention relates to a heat-not-burn smoke cartridge and a manufacturing method thereof.The smoke cartridge comprises an outer pipe body, a filtering body and a smoke generating body, the filtering body and the smoke generating body are arranged at the two ends of the outer pipe body respectively, an inner pipe body is arranged in the outer pipe body, at least one end of the inner pipe body is sealed through a high-permeability paper film, and the inner pipe body is arranged between the filtering body and the smoke generating body; the end, provided with the high-permeability paper film sealing opening, of the inner pipe body is adjacent to the smoke generating body, and the high-permeability paper film can enable smoke generated by the smoke generating body to penetrate through and transmit the smoke to the filtering body through the cavity of the inner pipe body. The smoke cartridge adopts the inner pipe body and the outer pipe body, the inner pipe body serves as a supporting body and also serves as a cooling body, meanwhile, a smoke generating body is blocked, the cavity of the inner pipe body ensures smooth airflow, and the smoke cartridge is compact in overall structure and convenient to manufacture. According to the manufacturing method of the smoke cartridge, array type batch manufacturing is adopted, the overall quality is uniform and consistent, the production cost is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of heat-not-burn tobacco products, and particularly relates to a heat-not-burn tobacco cartridge and a manufacturing method thereof. Background Art

[0002] A heat-not-burn tobacco product is a new type of product that combines a heating device and a tobacco cartridge. It can use a smoke-generating material without tobacco and emit smoke similar to traditional tobacco during heating.

[0003] Generally, a heat-not-burn tobacco cartridge has at least three sections, including a smoke-generating section, a support member, and a transition section. The support member usually adopts a columnar spacer. For example, the Chinese patent application with the application number 202111555580.7 discloses a heat-not-burn cigarette, which includes a first support unit, a smoke-generating unit, a second support unit, a cooling unit, and a filtering unit arranged in sequence. The first support unit includes a plurality of support columns with corrugated bodies inside and a first wrapping layer wrapping the support columns. The first wrapping layer is wrapped outside the support columns, and there is a spacing between adjacent corrugated bodies in the support columns. This way of using an outer wrapping layer for the support column is not convenient to manufacture. This support column is suitable for sheet-like or filamentous smoke-generating bodies, but is prone to blockage when used for granular smoke-generating bodies. Summary of the Invention

[0004] In view of this, there is provided a heat-not-burn tobacco cartridge and a manufacturing method thereof that are convenient for fixing the smoke-generating body, easy to manufacture, have a compact structure, and smooth air flow.

[0005] A heat-not-burn tobacco cartridge includes an outer tube body, a filter body and a smoke-generating body respectively filled at both ends of the outer tube body. An inner tube body is installed in the outer tube body. At least one end of the inner tube body is sealed with a high-permeability paper film. The inner tube body is arranged between the filter body and the smoke-generating body. The end of the inner tube body with the high-permeability paper film is adjacent to the smoke-generating body. The high-permeability paper film can transmit the smoke generated by the smoke-generating body and pass it through the cavity of the inner tube body to the filter body.

[0006] Preferably, both ends of the inner tube body are respectively abutted between the filter body and the smoke-generating body to respectively fix the filter body and the smoke-generating body at predetermined positions at both ends of the outer tube body.

[0007] Preferably, the inner tube body, the filter body and the smoke-generating body are axially connected to each other, and the sum of the lengths of the inner tube body, the filter body and the smoke-generating body is basically the same as the length of the entire outer tube body.

[0008] In some preferred embodiments, the outer diameter of the inner tube body is 0.1 mm - 0.2 mm smaller than the inner diameter of the outer tube body.

[0009] Preferably, both ends of the inner tube body are sealed with high-transparency paper membranes. One end of the outer tube body containing the smoke-generating body is encapsulated with a high-transparency paper membrane. The outer tube body is the outermost part of the cartridge.

[0010] Preferably, the outer tube body and the inner tube body are rigid paper tubes made of the same material. The outer tube body and the inner tube body are respectively heat-conductive tube bodies to quickly dissipate the heating temperature of the smoke-generating body.

[0011] And, a manufacturing method of the heat-not-burn cartridge as described above, which includes the following steps: S01, arranging multiple first tube bodies orderly into a first mold tray. The first mold tray has a grid array, and each grid has a through-hole for loading one first tube body; S02, when loading the first tube bodies into the first mold tray, the bottom ends of the first tube bodies are blocked, and a colloid is brushed on the top ends of the first tube bodies; S03, covering the rolled high-transparency paper and sticking it to the top ends of the first tube bodies through the colloid; S04, cutting the high-transparency paper at the top ends of the first tube bodies into the shape of a sealing film through a die-cutting machine to form an inner tube body with a high-transparency paper seal; S05, arranging the second tube bodies orderly into a second mold tray. One end of the second tube body is loaded with a smoke-generating body, and the other port faces upward. The second tube body is used as a preform of the outer tube body. The second mold tray has a grid array with the same number and arrangement as the first mold tray; S06, aligning the first mold tray and the second mold tray, making the end of the inner tube body with a high-transparency paper seal face downward, and respectively pushing each inner tube body into the outer tube body through a push-pin template, so that the entire inner tube body is loaded into the outer tube body, and then loading a filter element to obtain the heat-not-burn cartridge.

[0012] In step S05, one end of the second tube body is loaded with a smoke-generating body. Further, the end of the second tube body loaded with the smoke-generating body faces upward, and the second tube body is encapsulated by the same process as in steps S02, S03, and S04 to form an outer tube body with a high-transparency paper seal.

[0013] In step S02, a baffle is provided on one side of the first mold tray. At least two corners of the baffle are provided with first magnetic attracting members. The first mold tray is respectively provided with second magnetic attracting members at two corners corresponding to the magnetic attracting members on the baffle. The baffle is arranged on one side of the first mold tray through the magnetic attracting action of the first magnetic attracting members and the second magnetic attracting members to block the bottom ends of the first tube bodies.

[0014] Further, the die-cutting machine has a round-hole cutter array corresponding to the grid array of the first die plate. The high-transparency paper at the top of each first tube body is cut into a circular sealing film through the round-hole cutter array. The inner diameter of the round-hole cutter in the round-hole cutter array is larger than the outer diameter of the first tube body. The push-pin template has a push-pin array corresponding to the grid array of the first die plate. The outer diameter of the push-pin in the push-pin array is smaller than the inner diameter of the second tube body and larger than the inner diameter of the first tube body. The length of the push-pin in the push-pin array is greater than the length of the filter body.

[0015] In the above-mentioned heat-not-burn cigarette cartridge and its manufacturing method, an inner tube body is installed inside the outer tube body. At least one end of the inner tube body is sealed with a high-transparency paper film. The inner tube body can support the filter body and the smoke-generating body, and the high-transparency paper film can allow the smoke generated by the smoke-generating body to pass through and be transmitted to the filter body through the cavity of the inner tube body. Therefore, the inner tube body of this cigarette cartridge can not only provide a supporting function, but also effectively allow air to pass through to transmit the smoke to the filter body. Moreover, especially for particulate smoke-generating bodies, sealing with a high-transparency paper film can completely block the particles, while traditional support columns with air holes cannot effectively block the particles, but instead the particles will block the air holes. Furthermore, through this structural form of the inner tube body, the smoke is uniformly, comprehensively and quickly transported to the filter body through the entire hollow cavity for the customer to suck, which can give the user a comfortable experience similar to that of real cigarettes and enhance the user experience. In addition, the manufacturing method of the cigarette cartridge adopts the technological process of brushing glue on the tube body, laminating the film, cutting, and sleeving the inner and outer tubes. In the method, both tube bodies adopt a grid array, and the method of pushing the inner tube body also adopts a push-pin array. The operation is simple. The whole process adopts array-type batch manufacturing. On the one hand, it can make the overall quality uniform and consistent. On the other hand, it can greatly improve production efficiency, reduce production costs, enhance product competitiveness, and has a wide application prospect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the heat-not-burn cigarette cartridge provided by an embodiment of the present invention.

[0017] Figure 2 is a schematic cross-sectional structural diagram of the inner tube body in the heat-not-burn cigarette cartridge provided by an embodiment of the present invention.

[0018] Figure 3 is a schematic structural diagram of the first die plate in the manufacturing method of the heat-not-burn cigarette cartridge provided by an embodiment of the present invention.

[0019] Figure 4 is a schematic structural diagram when the first tube body is loaded into the first die plate in the manufacturing method of the heat-not-burn cigarette cartridge provided by an embodiment of the present invention.

[0020] Figure 5 is a schematic structural diagram when a roll of high-transparency paper is covered on the top of the first tube body in the manufacturing method of the heat-not-burn cigarette cartridge provided by an embodiment of the present invention.

[0021] Figure 6 It is a schematic structural diagram when the second tube body is loaded into the second mold plate in the method for manufacturing a heat-not-burn cigarette cartridge provided by an embodiment of the present invention. Detailed implementation manners

[0022] The present invention will be described in detail below in conjunction with specific embodiments and the accompanying drawings.

[0023] Please refer to Figure 1 and Figure 2 , which show a heat-not-burn cigarette cartridge 100 and an inner tube body 20 provided by an embodiment of the present invention. The cigarette cartridge 100 includes an outer tube body 10, a filter body 13 and a smoke-generating body 12 respectively loaded at both ends of the outer tube body 10. An inner tube body 20 is installed in the outer tube body 10. At least one end of the inner tube body 20 is sealed with a high-permeability paper film 25. The inner tube body 20 is arranged between the filter body 13 and the smoke-generating body 12. The end of the inner tube body 20 with the high-permeability paper film 25 is adjacent to the smoke-generating body 12. The high-permeability paper film 25 can transmit the smoke generated by the smoke-generating body 12 and convey it to the filter body 13 through the cavity of the inner tube body 20.

[0024] Specifically, both ends of the inner tube body 20 respectively abut between the filter body 13 and the smoke-generating body 12 to fix the filter body 13 and the smoke-generating body 12 at predetermined positions at both ends of the outer tube body 10 respectively. In this embodiment, the smoke-generating body 12 is granular, and a granular smoke-generating material is used, preferably a smoke-generating material without nicotine.

[0025] Preferably, the inner tube body 20, the filter body 13 and the smoke-generating body 12 are axially connected to each other, and the sum of the lengths of the inner tube body 20, the filter body 13 and the smoke-generating body 12 is basically the same as the length of the entire outer tube body 10. In this way, the internal structure of the outer tube body 10 is stable, reliable, strong and durable. More preferably, the outer diameter of the inner tube body 20 is smaller than the inner diameter of the outer tube, and the difference in size is such that the inner tube body 20 can move under external pushing and can stop without sliding randomly when there is no external force, preferably the difference is 0.1 mm - 0.2 mm.

[0026] Furthermore, both ends of the inner tube body 20 are respectively sealed with a high-permeability paper film 25. One end of the outer tube body 10 where the smoke-generating body 12 is installed is encapsulated with a high-permeability paper film 25. The outer tube body 10 is the outermost part of the cigarette cartridge. Therefore, the outer surface of the outer tube body 10 can be without an outer wrapping paper. Since the sealing process of the present invention is mature and the sealing at both ends is easy to achieve, the same process is adopted for the sealing of the outer tube body 10, and the manufacturing process is convenient.

[0027] Specifically, the outer tube body 10 and the inner tube body 20 are hard paper tubes made of the same material, and the outer tube body 10 and the inner tube body 20 are respectively heat-conducting tube bodies to quickly dissipate the heating temperature of the smoke generating body 12. In this embodiment, the size of the inner tube body 20 is preferably 12-18 mm, more preferably 12-15 mm. The inside of the inner tube body 20 is a hollow cavity 26 without fillers to ensure smooth air flow.

[0028] Another aspect of the embodiment of the present invention further provides a manufacturing method of the heat-not-burn cigarette cartridge as described above, which includes the following steps: S01, arranging a plurality of first tube bodies in an orderly manner into the first mold plate 31. The first mold plate 31 has a grid array, and each grid has a through hole for loading one first tube body 20a.

[0029] As Figure 3 shown, the structure of the first mold plate 31 is shown, which is provided with a plurality of through holes 35 arranged in an array. The figure shows an array of 10*10 holes, and it can be set according to needs during the actual manufacturing process. For example, a 20*20 hole mold plate or a 30*30 hole mold plate can be used, and it is not limited to this.

[0030] S02, when loading the first tube body 20a into the first mold plate 31, the bottom end of the first tube body 20a is blocked, and a colloid is brushed on the top end of each first tube body 20a.

[0031] As Figure 4 shown, a baffle 36 is provided on one side of the first mold plate 31. At least two corners of the baffle 36 are provided with first magnetic members 361, and the first mold plate 31 is respectively provided with second magnetic members 316 at two corners corresponding to the magnetic members 361 on the baffle 36. The baffle 36 is arranged on one side of the first mold plate 31 through the magnetic attraction of the first magnetic member 361 and the second magnetic member 316 to block the bottom ends of the respective first tube bodies 20a. One of the two magnetic members is made of a magnetic material such as a magnet, and the other is a magnetic material such as iron.

[0032] S03, covering the rolled high-permeability paper 25a and sticking it to the top end of each first tube body 20a through the colloid. Specifically, the first mold plate 31 is conveyed to the glue application station, and a neck brush glue roller or roller brushes glue on the top end of the first tube body 20a, and then a roll of high-permeability paper 25a is pasted on the glue, and the glue sticks the high-permeability paper 25a to the top end.

[0033] S04. Cut the high-transparency paper at the top of each first tube body 20a into the shape of a sealing film by a die-cutting machine to form an inner tube body with a high-transparency paper seal. The die-cutting machine also has a circular hole cutter array (not shown in the figure) corresponding to the grid array of the first mold plate 31. Cut the high-transparency paper at the top of each first tube body 20a into a circular sealing film through the circular hole cutter array. The inner diameter of the circular hole cutter in the circular hole cutter array is larger than the outer diameter of the first tube body 20a.

[0034] S05. As shown in Figure 5 , arrange the second tube bodies 10a in order into the second mold plate 32. One end of the second tube body 10a is loaded with a smoke-generating body, and the other port faces upward. The second tube body 10a serves as a preform of the outer tube body. The second mold plate 32 has the same number and arrangement of grid arrays as the first mold plate 31. This step is basically the same as S01, and the main differences are mainly in the tube body size and the mold plate size. The second mold plate 32 also has a baffle 37 to block the bottom end of the second tube body 10a, and magnetic components 326 and 372 to combine the second mold plate 32 and the baffle 37 together.

[0035] In addition, in step S05, first load a smoke-generating body into one end of the second tube body 10a. Further, turn the end of the second tube body 10a with the smoke-generating body upward, and use the same processes as in steps S02, S03, and S04 to encapsulate the second tube body 10a to form an outer tube body with a high-transparency paper seal.

[0036] S06. Align the first mold plate 31 and the second mold plate 32, make the end of the inner tube body 20 (i.e., the first tube body 20a) with the high-transparency paper seal face downward, and push each inner tube body into the outer tube body 10 (i.e., the second tube body 10a) respectively through a push pin template, so that the entire inner tube body 20 is loaded into the outer tube body 10, and then load a filter body to obtain the heat-not-burn cigarette cartridge.

[0037] Specifically, the push pin template has a push pin array corresponding to the grid array of the first mold plate 31. The outer diameter of the push pins in the push pin array is smaller than the inner diameter of the second tube body 10a and larger than the inner diameter of the first tube body 20a. The length of the push pins in the push pin array is greater than the length of the filter body. The push pin template is fixedly installed on a bracket. During the operation of step S06, the two mold plates 31 and 32 are placed below the push pin template. After alignment, drive the push pin template to move downward a predetermined distance, so that the first tube body 20a is pushed into the second tube body 10a to a predetermined depth, for example, contacting the smoke-generating body, and control the position of the inner tube body 20 in the outer tube body 10 by precisely controlling the downward movement distance of the push pin template.

[0038] It should be noted that the present invention is not limited to the above embodiments. According to the creative spirit of the present invention, those skilled in the art can also make other changes, and these changes made in accordance with the creative spirit of the present invention should all be included within the scope of protection required by the present invention.

Claims

1. A heat-not-burn cigarette cartridge, comprising an outer tube body, a filter body and a smoke-generating body respectively filled at both ends of the outer tube body, characterized in that, an inner tube body is installed in the outer tube body, at least one end of the inner tube body is sealed with a high-permeability paper film, the inner tube body is arranged between the filter body and the smoke-generating body, the end of the inner tube body with the high-permeability paper film seal is adjacent to the smoke-generating body, and the high-permeability paper film can transmit the smoke generated by the smoke-generating body and convey it to the filter body through the cavity of the inner tube body.

2. The heat-not-burn cigarette cartridge according to claim 1, characterized in that, both ends of the inner tube body are respectively abutted between the filter body and the smoke-generating body to respectively fix the filter body and the smoke-generating body at predetermined positions at both ends of the outer tube body.

3. The heat-not-burn cigarette cartridge according to claim 1, characterized in that, the inner tube body, the filter body and the smoke-generating body are axially connected to each other, and the sum of the lengths of the inner tube body, the filter body and the smoke-generating body is basically the same as the length of the entire outer tube body.

4. The heat-not-burn cigarette cartridge according to claim 1, characterized in that, the outer diameter of the inner tube body is 0.1 mm - 0.2 mm smaller than the inner diameter of the outer tube diameter.

5. The heat-not-burn cigarette cartridge according to claim 4, characterized in that, both ends of the inner tube body are respectively sealed with a high-permeability paper film, one end of the outer tube body where the smoke-generating body is installed is encapsulated with a high-permeability paper film, and the outer tube body is the outermost part of the cigarette cartridge.

6. The heat-not-burn cigarette cartridge according to claim 1, characterized in that, the outer tube body and the inner tube body are hard paper tubes of the same material, and the outer tube body and the inner tube body are respectively heat-conducting tube bodies to quickly dissipate the heating temperature of the smoke-generating body.

7. A manufacturing method of the heat-not-burn cigarette cartridge according to any one of claims 1-6, characterized in that, comprises the following steps: S01, arranging a plurality of first tube bodies in an orderly manner into a first mold tray, the first mold tray has a grid array, and each grid has a through hole for loading one first tube body; S02, when loading the first tube bodies into the first mold tray, the bottom ends of the first tube bodies are blocked, and a colloid is brushed on the top ends of the first tube bodies; S03, covering the rolled high-permeability paper and sticking it to the top ends of the first tube bodies through the colloid; S04, cutting the high-permeability paper at the top ends of the first tube bodies into the shape of a sealing film through a die cutter to form an inner tube body with a high-permeability paper seal; S05, arranging the second tube bodies in an orderly manner into a second mold tray, one end of the second tube body is loaded with a smoke-generating body, and the other port is upward, the second tube body is used as a preform of the outer tube body, and the second mold tray has the same number and arrangement of grid arrays as the first mold tray; S06, aligning the first mold tray and the second mold tray, making the end of the inner tube body with the high-permeability paper seal face downward, and respectively pushing each inner tube body into the outer tube body through a push pin template, so that the entire inner tube body is loaded into the outer tube body, and then loading the filter body to obtain the heat-not-burn cigarette cartridge.

8. The manufacturing method of the heat-not-burn cigarette cartridge according to claim 7, characterized in that, In step S05, one end of the second tube body is loaded with a fuming body. Further, the end of the second tube body with the fuming body is oriented upward, and the same processes as in steps S02, S03, and S04 are used to encapsulate the second tube body to form an outer tube body with a high-permeability paper seal.

9. The manufacturing method of a heat-not-burn cigarette cartridge according to claim 7, characterized in that, in step S02, a baffle is provided on one side of the first mold plate. The baffle is provided with first magnetic attracting members at at least two corners. The first mold plate is respectively provided with second magnetic attracting members at two corners corresponding to the magnetic attracting members on the baffle. The baffle is arranged on one side of the first mold plate through the magnetic attracting action of the first magnetic attracting members and the second magnetic attracting members to block the bottom ends of the respective first tube bodies.

10. The manufacturing method of a heat-not-burn cigarette cartridge according to claim 7, characterized in that, the die-cutting machine has a circular hole cutter array corresponding to the square grid array of the first mold plate. The high-permeability paper at the top end of each first tube body is cut into a circular sealing film through the circular hole cutter array. The inner diameter of the circular hole cutter in the circular hole cutter array is larger than the outer diameter of the first tube body; the push pin template has a push pin array corresponding to the square grid array of the first mold plate. The outer diameter of the push pin in the push pin array is smaller than the inner diameter of the second tube body and larger than the inner diameter of the first tube body. The length of the push pin in the push pin array is greater than the length of the filter body.

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