Preparation method of tube body, tube body and heat-not-burn cigarette cartridge

Abstract

The present application provides a method for preparing a tube body, a tube body and a heat-not-burn cigarette cartridge. The method for preparing the tube body comprises: providing multiple groups of paper, and applying glue to the multiple groups of paper respectively; overlapping and splicing the multiple groups of paper; winding the multiple groups of paper at a preset angle; and cutting the wound multiple groups of paper to form multiple tube bodies. The method for preparing a tube body provided by the present application can improve the structural stability of the tube body.

Description

Technical Field

[0001] The present application relates to the preparation of an electronic cigarette, and in particular to a method for preparing a tube body, a tube body and a heat-not-burn cigarette cartridge. Background Art

[0002] With the development of science and technology, more and more users are using heat-not-burn cigarette cartridges. Heat-not-burn cigarette cartridges need to be supported by multiple tubes. Therefore, the prepared tubes need to have a stable structure. Summary of the invention

[0003] In a first aspect, an embodiment of the present application provides a method for preparing a tube body, the method for preparing a tube body comprising:

[0004] Providing multiple groups of paper and gluing the multiple groups of paper respectively;

[0005] Performing staggered overlapping splicing on the multiple groups of paper sheets;

[0006] Winding the plurality of groups of paper at a preset angle; and

[0007] The wound groups of paper are cut to form a plurality of tubes.

[0008] Wherein, the “winding the plurality of groups of paper at a preset angle” includes:

[0009] Overlapping the plurality of groups of paper with a fixed winding member at a preset angle, wherein the preset angle α is: 30°≤α≤60°; and

[0010] The plurality of groups of paper are wound along the winding member at the preset angle and move along the axial direction of the winding member.

[0011] Wherein, the “staggered overlapping of the plurality of groups of paper sheets” includes:

[0012] Arrange the plurality of groups of paper sheets in sequence along the width direction with a preset distance offset therefrom, wherein the preset distance d0 is: 4 mm ≤ d0 ≤ 5 mm; and

[0013] The plurality of groups of paper sheets are sequentially staggered and bonded together.

[0014] The “providing multiple groups of paper and gluing the multiple groups of paper respectively” includes:

[0015] Provide multiple sets of paper and arrange them in intervals; and

[0016] In two adjacent groups of paper sheets, two surfaces arranged opposite to each other are coated with glue.

[0017] Wherein, after “winding the plurality of groups of paper at a preset angle” and before “cutting the wound plurality of groups of paper to form a plurality of tubes”, the method for preparing the tube further includes:

[0018] A rotational force is applied to the plurality of groups of paper sheets.

[0019] Wherein, after “winding the plurality of groups of paper at a preset angle” and before “cutting the wound plurality of groups of paper to form a plurality of tubes”, the method for preparing the tube further includes:

[0020] A rotational force is applied to the plurality of sets of paper sheets, and the plurality of sets of paper sheets are heated.

[0021] Wherein, after the step of “cutting the wound multiple groups of paper into multiple tubes”, the method for preparing the tube further comprises:

[0022] Screening out the cutting residues formed by cutting the plurality of tube bodies;

[0023] heating the plurality of tubes; and

[0024] The plurality of tubes are collected.

[0025] In a second aspect, an embodiment of the present application further provides a tube body, the tube body having a first end and a second end disposed opposite to each other and an outer surface and an inner surface disposed opposite to each other, the tube body comprising:

[0026] A plurality of tube layers, wherein the plurality of tube layers have an outer contour at a preset angle to a first direction between the first end and the second end, and the plurality of tube layers are staggered and overlapped in a second direction, wherein the first direction is a direction from the first end to the second end, and the second direction is a direction from the outer surface to the inner surface.

[0027] Wherein, the preset angle α is: 30°≤α≤60°.

[0028] In a third aspect, an embodiment of the present application further provides a heat-not-burn tobacco cartridge, which comprises a tobacco unit and a tube body as described in the second aspect, wherein the tobacco unit is accommodated in the tube body; or the tobacco unit is arranged on one side of the tube body.

[0029] The present application provides a method for preparing a tube body, wherein the method prevents the multiple groups of paper from being easily scattered during the winding process by staggering and overlapping multiple groups of paper, thereby increasing the stability of the multiple groups of paper after winding. In addition, the multiple groups of paper are wound at a preset angle, which can improve the winding stability of the multiple groups of paper. Therefore, the method for preparing a tube body provided by the present application can improve the structural stability of the tube body. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the implementation will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 A flow chart of a method for preparing a tube body provided in one embodiment of the present application.

[0032] Figure 2 for Figure 1 A schematic diagram of multiple groups of paper being staggered and overlapped in the method for preparing a tube body provided in an embodiment.

[0033] Figure 3 for Figure 1 A schematic structural diagram of a tube body in a method for preparing a tube body provided in an embodiment.

[0034] Figure 4 for Figure 1 A flow chart of winding multiple groups of paper in a method for preparing a tube provided in an embodiment.

[0035] Figure 5 for Figure 4 A schematic diagram of winding multiple groups of paper in the method for preparing a tube body provided in an embodiment.

[0036] Figure 6 for Figure 1 A flow chart of staggered, overlapping and splicing of multiple groups of paper sheets in a method for preparing a tube body provided in an embodiment.

[0037] Figure 7 for Figure 1 A flow chart of gluing multiple groups of paper in a method for preparing a tube body provided in an embodiment.

[0038] Figure 8 for Figure 1 A flow chart of strengthening the winding of multiple groups of paper in one embodiment of the method for preparing a tube provided in the embodiment.

[0039] Fig. 9 for Figure 1 A flow chart of strengthening the winding of multiple groups of paper in another embodiment of the method for preparing a tube body provided in the embodiment.

[0040] Fig.10 for Figure 1 A flow chart of collecting tubes in a method for preparing a tube provided in an embodiment.

[0041] Fig.11 A schematic diagram of the structure of a tube body provided in one embodiment of the present application.

[0042] Fig.12 for Fig.11 A schematic structural diagram of a partially unfolded tube body provided in an implementation manner.

[0043] Fig.13 A schematic diagram of the structure of a heat-not-burn cigarette cartridge provided in one embodiment of the present application.

[0044] Fig.14 for Fig.13 A partial enlarged view of location I in the heat-not-burn cigarette cartridge provided in an embodiment.

[0045] Fig.15 A schematic diagram of the structure of a heat-not-burn cigarette cartridge provided in another embodiment of the present application.

[0046] Fig.16 for Fig.15 A partial enlarged view of point II in the heat-not-burn cigarette cartridge provided in an embodiment.

[0047] Figure numbers: heat-not-burn tobacco cartridge 1; paper 2; winding member 3; tube body 10; tobacco unit 20; sealing part 30; cooling part 40; filtering part 50; packaging part 60; outer tube body 70; sealing part 80; first end 11; second end 12; outer surface 13; inner surface 14; tube layer 15; first direction D1; second direction D2. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0049] The terms "first", "second", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes steps or units that are not listed, or optionally includes other steps or units inherent to these processes, methods, products or devices.

[0050] Reference to "embodiment" or "implementation" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment or implementation may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0051] Please refer to Figure 1 , Figure 2 and Figure 3 , Figure 1 A flow chart of a method for preparing a tube body provided in one embodiment of the present application;

[0052] Figure 2 for Figure 1 A schematic diagram of multiple groups of paper being staggered and overlapped in the method for preparing a tube body provided in an embodiment; Figure 3 for Figure 1 A schematic diagram of the structure of a tube body in a method for preparing a tube body provided in an embodiment. In this embodiment, the method for preparing the tube body 10 includes providing multiple groups of paper 2, and applying glue to the multiple groups of paper 2 respectively. Staggering and overlapping the multiple groups of paper 2. Winding the multiple groups of paper 2 at a preset angle. And cutting the wound multiple groups of paper 2 to form multiple tube bodies 10.

[0053] In this embodiment, the tube body 10 is used for the heat-not-burn cigarette cartridge 1. Specifically, in one embodiment, the tube body 10 can be used as the outer tube body 70 of the heat-not-burn cigarette cartridge 1 to accommodate other components. In another embodiment, the tube body 10 can be used as the cooling part 40 of the heat-not-burn cigarette cartridge 1 to cool the aerosol.

[0054] In this embodiment, the method for preparing the tube body 10 includes steps S10, S20, S30 and S40. Next, steps S10, S20, S30 and S40 are described in detail.

[0055] S10, providing multiple groups of paper sheets 2, and applying glue to the multiple groups of paper sheets 2 respectively.

[0056] In this embodiment, paper 2 is only a description of the appearance of the multiple groups of paper 2, indicating that the appearance of the multiple groups of paper 2 is similar to paper, and does not limit the material of the multiple groups of paper 2. Specifically, the material of the multiple groups of paper 2 includes at least one of 50-200g / ㎡ white cardboard, 50-200g / ㎡ kraft paper, silicone oil paper, waterproof paper, aluminum foil paper and copper foil paper, and at least one of the multiple groups of paper 2 is waterproof paper. In this embodiment, the multiple groups of paper 2 are coated with adhesive respectively, and specifically, the adhesive includes at least one of glutinous rice glue, overlapping glue, straw glue and white latex.

[0057] S20, performing staggered overlapping splicing on the multiple groups of paper sheets 2.

[0058] In this embodiment (see Figure 2 ), the multiple groups of paper 2 are overlapped and spliced ​​in an offset manner, so that the multiple groups of paper 2 are bonded together. Specifically, the edges of the multiple groups of paper 2 on the same side in the width direction are overlapped and spliced ​​in an offset manner in sequence, so that the multiple groups of paper 2 are not easy to spread out when winding, and have higher stability after winding. It should be noted that in this embodiment, only the parts of the multiple groups of paper 2 to be wound are overlapped together, and the multiple groups of paper 2 are not all overlapped together.

[0059] S30, winding the plurality of groups of paper 2 at a preset angle.

[0060] In this embodiment, the multiple groups of paper 2 are rolled into a cylindrical shape at a preset angle, wherein the preset angle refers to the angle between the direction of the multiple groups of paper 2 being rolled and the axis of the multiple groups of paper 2 after being rolled, and the preset angle is not equal to 90°. Rolling the multiple groups of paper 2 at the preset angle can improve the winding stability of the multiple groups of paper 2.

[0061] S40 , cutting the wound groups of paper 2 to form a plurality of tubes 10 .

[0062] In this embodiment, the wound multiple sets of paper 2 are cut to form multiple tubes 10. Specifically, when the tube 10 is used as the outer tube 70 of the heat-not-burn cigarette cartridge 1, the length L0 of the multiple tubes 10 formed by cutting the wound multiple sets of paper 2 is 42mm≤L0≤46mm. When the tube 10 is used as the inner tube 10 of the heat-not-burn cigarette cartridge 1, the length L0 of the multiple tubes 10 formed by cutting the wound multiple sets of paper 2 is 15mm≤L0≤22mm.

[0063] The present application provides a method for preparing a tube body 10, wherein the method for preparing a tube body 10 prevents the multiple groups of paper 2 from being easily scattered during the winding process by staggering and overlapping multiple groups of paper 2, thereby increasing the stability of the multiple groups of paper 2 after winding. In addition, the multiple groups of paper 2 are wound at a preset angle, which can improve the winding stability of the multiple groups of paper 2. Therefore, the method for preparing a tube body 10 provided in the present application can improve the structural stability of the tube body 10.

[0064] Please refer to Figure 4 and Figure 5 , Figure 4 for Figure 1 A flow chart of winding multiple groups of paper in a method for preparing a tube provided in an embodiment; Figure 5 for Figure 4 Schematic diagram of winding multiple groups of paper in the method for preparing a tube body provided in the embodiment. In this embodiment, the "winding the multiple groups of paper 2 at a preset angle" includes overlapping the multiple groups of paper 2 with a fixed winding member 3 at a preset angle, wherein the preset angle α: 30°≤α≤60°. And winding the multiple groups of paper 2 along the winding member 3 at the preset angle, and moving along the axial direction of the winding member 3.

[0065] In this embodiment, winding the plurality of sets of paper sheets 2 includes steps S31 and S32. Next, steps S31 and S32 will be described in detail.

[0066] S31, overlapping the plurality of groups of paper 2 with the fixed winding member 3 at a preset angle, wherein the preset angle α is: 30°≤α≤60°.

[0067] In this embodiment, the winding member 3 is fixed and has a columnar structure. The multiple groups of paper 2 are overlapped on the outer surface of the winding member 3. Specifically, the multiple groups of paper 2 form a preset angle with the axis of the winding member 3, and the preset angle α is: 30°≤α≤60°. The multiple groups of paper 2 are overlapped with the winding member 3 at the preset angle α, so that the multiple groups of paper 2 can be wound at the preset angle α. Compared with winding at other angles, the multiple groups of paper 2 have a more stable structure after winding.

[0068] S32 , winding the plurality of groups of paper sheets 2 along the winding member 3 at the preset angle, and moving along the axial direction of the winding member 3 .

[0069] In this embodiment, the multiple groups of paper 2 are wound on the outer surface of the winding member 3, and the multiple groups of paper 2 are moved along the axial direction of the winding member 3, so as to continuously wind the multiple groups of paper 2. That is, while the multiple groups of paper 2 are wound on the winding member 3, they move relative to the winding member 3 along the axial direction of the winding member 3.

[0070] Please refer to Figure 2 and Figure 6 , Figure 6 for Figure 1 A flow chart of staggered overlapping of multiple groups of paper in a method for preparing a tube body provided in an embodiment. In this embodiment, "staggered overlapping of the multiple groups of paper 2" includes arranging the multiple groups of paper 2 in a staggered manner by a preset distance in the width direction, wherein the preset distance d0: 4mm≤d0≤5mm. And staggered bonding the multiple groups of paper 2 together in sequence.

[0071] In this embodiment, the offset overlapping splicing of the plurality of groups of paper sheets 2 includes steps S21 and S22. Steps S21 and S22 are described in detail below.

[0072] S21, arranging the plurality of groups of paper sheets 2 in sequence along the width direction with a preset offset distance, wherein the preset distance d0 is: 4 mm≤d0≤5 mm.

[0073] In this embodiment, the multiple groups of paper 2 are sequentially offset by a preset distance in the width direction. Specifically, the edges of the multiple groups of paper 2 on the same side in the width direction are sequentially spaced by the preset distance. The width direction is perpendicular to the winding direction of the multiple groups of paper 2. The preset distance d0: 4mm≤d0≤5mm enables the outermost paper 2 after the multiple groups of paper 2 are wound to cover the winding marks of other paper 2, and the two adjacent groups of paper 2 have sufficient contact area to ensure the stability of the multiple groups of paper 2 after winding.

[0074] S22, the plurality of groups of paper sheets 2 are sequentially staggered and bonded together.

[0075] In this embodiment, two adjacent groups of paper sheets 2 among the plurality of groups of paper sheets 2 are bonded together.

[0076] Please refer to Figure 7 , Figure 7 for Figure 1 Flow chart of gluing multiple groups of paper in the method for preparing a tube body provided in the embodiment. In this embodiment, the "providing multiple groups of paper 2 and gluing the multiple groups of paper 2 respectively" includes providing multiple groups of paper 2 and arranging them at intervals. And in two adjacent groups of paper 2, gluing is applied to two surfaces arranged opposite to each other.

[0077] In this embodiment, gluing the plurality of groups of paper sheets 2 includes steps S11 and S12. Next, steps S11 and S12 are described in detail.

[0078] S11, providing a plurality of groups of paper sheets 2 and arranging them at intervals.

[0079] In this embodiment, the plurality of groups of paper 2 are arranged at intervals. The thickness of the plurality of groups of paper 2 is the same or different. In one embodiment, the plurality of groups of paper 2 have the same thickness. In another embodiment, at least some of the plurality of groups of paper 2 have different thicknesses. When the plurality of groups of paper 2 include two groups of paper 2, the two groups of paper 2 have different thicknesses, and the thickness of the paper 2 near the inner side after winding is thicker than the paper 2 near the outer side to provide a more stable support. Alternatively, the thickness of the paper 2 near the outer side after winding is thicker than the paper 2 near the inner side to shield the outer contour of the paper 2 near the inner side. When the plurality of groups of paper 2 include at least three groups of paper 2, at least some of the plurality of groups of paper 2 have different thicknesses, and the thickness of the paper 2 near the inner side after winding is thicker than the paper 2 near the outer side to provide a more stable support. Alternatively, the thickness of the paper 2 near the outer side after winding is thicker than the paper 2 near the inner side to shield the outer contour of the paper 2 near the inner side. Alternatively, after the winding, the thickness of the paper 2 in the middle is the thickest, and the thickness of the paper 2 near the outside is gradually reduced compared to the paper 2 in the middle, and the thickness of the paper 2 near the inside is gradually reduced compared to the paper 2 in the middle, so that the structure of the tube 10 after the at least three groups of paper 2 are wound is more stable. For example, when the multiple groups of paper 2 include three groups of paper 2, the thickness of the paper 2 near the outside after the winding is 0.07 mm, the thickness of the paper 2 in the middle is 0.11 mm, and the thickness of the paper 2 near the inside is 0.09 mm.

[0080] S12, in two adjacent groups of paper sheets 2, gluing is performed on two surfaces that are arranged opposite to each other.

[0081] In this embodiment, the surfaces of the plurality of groups of paper sheets 2 are coated with glue. Specifically, in two adjacent groups of paper sheets 2, two surfaces arranged opposite to each other are coated with glue, so that the two adjacent groups of paper sheets 2 can be bonded together and rolled. For example, for paper sheets 2 that need to be coated with glue on a single surface, a roller with adhesive can be used to coat the glue on one side of the paper sheets 2. For paper sheets 2 that need to be coated with glue on both surfaces, rollers with adhesive can be used to coat the glue on both sides of the paper sheets 2 that are opposite to each other, or the paper sheets 2 can be directly immersed in the adhesive and passed through the adhesive to coat the glue on both sides.

[0082] Please refer to Figure 8 , Figure 8 for Figure 1 A flowchart of strengthening the winding of multiple sets of paper in one embodiment of the method for preparing a tube body provided in the embodiment. In this embodiment, after "winding the multiple sets of paper 2 at a preset angle" and before "cutting the wound multiple sets of paper 2 to form multiple tube bodies 10", the method for preparing the tube body 10 further includes applying a rotational force to the multiple sets of paper 2.

[0083] In this embodiment, after the multiple groups of paper 2 are wound at a preset angle, the multiple groups of paper 2 are transported a certain distance to perform cutting and other operations after the multiple groups of paper 2 are wound and formed. In order to prevent the multiple groups of paper 2 from becoming loose after being wound during this process, in this embodiment, the multiple groups of paper 2 are reinforced. Specifically, after step S30 and before step S40, the method for preparing the tube 10 further includes step S50.

[0084] S50 , applying a rotational force to the plurality of groups of paper sheets 2 .

[0085] In this embodiment, a rotational force is applied to the multiple groups of paper 2 to further wind the multiple groups of paper 2 after winding is completed, so as to increase the tightness of the winding between the multiple groups of paper 2, so as to prevent the multiple groups of paper 2 from becoming loose after winding due to the adhesive between the multiple groups of paper 2 not being dry and / or the multiple groups of paper 2 being transported for too long after winding. For example, two rollers rotating relatively to each other can be used to apply a rotational force to the multiple groups of paper 2 to strengthen the winding of the multiple groups of paper 2, but are not limited to this.

[0086] Please refer to Fig. 9 , Fig. 9 for Figure 1 A flowchart of strengthening the winding of multiple sets of paper in another embodiment of the method for preparing a tube body provided in the embodiment. In this embodiment, after "winding the multiple sets of paper 2 at a preset angle" and before "cutting the wound multiple sets of paper 2 to form multiple tube bodies 10", the method for preparing the tube body 10 further includes applying a rotational force to the multiple sets of paper 2 and heating the multiple sets of paper 2.

[0087] In this embodiment, after the multiple groups of paper 2 are wound at a preset angle, the multiple groups of paper 2 are transported a certain distance to perform cutting and other operations after the multiple groups of paper 2 are wound and formed. In order to prevent the multiple groups of paper 2 from becoming loose after being wound during this process, in this embodiment, the multiple groups of paper 2 are reinforced. Specifically, after step S30 and before step S40, the method for preparing the tube 10 further includes step S60.

[0088] S60 , applying a rotational force to the plurality of groups of paper sheets 2 , and heating the plurality of groups of paper sheets 2 .

[0089] In this embodiment, a rotational force is applied to the multiple groups of paper 2 to further wind the multiple groups of paper 2 after the winding is completed, so as to increase the tightness of the winding between the multiple groups of paper 2. In addition, the multiple groups of paper 2 are heated to accelerate the solidification of the adhesive between the multiple groups of paper 2, thereby accelerating the close fitting of the multiple groups of paper 2. For example, it is possible but not limited to use two relatively rotating rollers to apply a rotational force to the multiple groups of paper 2 to strengthen the winding of the multiple groups of paper 2. It is possible but not limited to use two relatively rotating rollers with heating components inside to apply a rotational force to the multiple groups of paper 2 and heat the multiple groups of paper 2, or use an external heat source to heat the multiple groups of paper 2. The temperature for heating the multiple groups of paper 2 is 70°C to 90°C.

[0090] Please refer to Fig.10 , Fig.10 for Figure 1 A flow chart of collecting the tube bodies in the method for preparing the tube bodies provided in the embodiment. In this embodiment, after the "cutting the wound multiple groups of paper 2 to form multiple tube bodies 10", the method for preparing the tube bodies 10 further includes screening out the cutting residues formed by cutting the multiple tube bodies 10. Heating the multiple tube bodies 10. And collecting the multiple tube bodies 10.

[0091] In this embodiment, after the plurality of tube bodies 10 are cut and prepared in step S40, the plurality of tube bodies 10 need to be shaped and collected. Specifically, after step S40, the method for preparing the tube body 10 further includes steps S70, S80 and S90.

[0092] S70 , screening out the cutting residues obtained by cutting the plurality of tube bodies 10 .

[0093] In this embodiment, when the plurality of groups of paper 2 are cut to form the plurality of tubes 10 in step S40, cutting residues are also generated. The length of the cutting residues is much smaller than the length of the plurality of tubes 10, and therefore, the cutting residues can be screened out by length identification. For example, in the transmission route for transporting the plurality of tubes 10 and the cutting residues, a gap having a length greater than the cutting residues and less than the length of the tubes 10 is set, so that the plurality of tubes 10 can continue to be transported along the transmission route through the gap, and the cutting residues fall out of the transmission route through the gap to complete the screening of the cutting residues.

[0094] S80, heating the plurality of tubes 10.

[0095] In this embodiment, the plurality of tubes 10 are heated so that the binder in the plurality of tubes 10 is rapidly solidified and formed, thereby accelerating the preparation of the finished product of the plurality of tubes 10. The heating temperature of the plurality of tubes 10 is 70° C. to 90° C., and the heating time is 3 min to 5 min.

[0096] S90 , collecting the plurality of tubes 10 .

[0097] In this embodiment, the plurality of tube bodies 10 are collected to complete the preparation of the tube body 10. The collected plurality of tube bodies 10 can be used for the production and preparation of the heat-not-burn cigarette cartridge 1.

[0098] The present application also provides a tube body 10. Fig.11 and Fig.12 , Fig.11 A schematic diagram of the structure of a tube body provided in one embodiment of the present application; Fig.12 for Fig.11 A schematic diagram of a partially unfolded structure of a tube body provided in an embodiment. In this embodiment, the tube body 10 has a first end 11 and a second end 12 disposed opposite to each other and an outer surface 13 and an inner surface 14 disposed opposite to each other, and the tube body 10 includes a plurality of tube layers 15. The plurality of tube layers 15 have an outer contour at a preset angle to a first direction D1 between the first end 11 and the second end 12. The plurality of tube layers 15 are disposed in an offset and overlapping manner in a second direction D2. The first direction D1 is a direction from the first end 11 to the second end 12, and the second direction D2 is a direction from the outer surface 13 to the inner surface 14.

[0099] In this embodiment, the multiple tube layers 15 have an outer contour that is at a preset angle to the first direction D1 between the first end 11 and the second end 12, wherein the preset angle is not 90°, so that the multiple tube layers 15 are formed in an oblique rolling manner, so that the multiple tube layers 15 fit more closely, thereby enhancing the structural stability of the tube body 10. In addition, the multiple tube layers 15 are arranged in an offset and overlapping manner in the second direction D2, which increases the surface area of ​​the bonding between the multiple tube layers 15, thereby increasing the tightness of the fit between the multiple tube layers 15, and further improving the structural stability of the tube body 10.

[0100] Please refer again Fig.11 In this embodiment, the preset angle α is: 30°≤α≤60°.

[0101] In this embodiment, the preset angle α between the outer contour of the multiple tube layers 15 between the first end 11 and the second end 12 and the first direction D1 is: 30°≤α≤60°, that is, the multiple tube layers 15 are obliquely rolled to form the preset angle α of the tube body 10: 30°≤α≤60°, so that the tube body 10 has better structural stability.

[0102] The present application also provides a heat-not-burn cigarette cartridge 1. Fig.13 , Fig.14 , Fig.15 and Fig.16 , Fig.13 A schematic diagram of the structure of a heat-not-burn cigarette cartridge provided in one embodiment of the present application; Fig.14 for Fig.13 A partial enlarged view of location I in the heat-not-burn cigarette cartridge provided in an embodiment; Fig.15 A schematic diagram of the structure of a heat-not-burn cigarette cartridge provided in another embodiment of the present application; Fig.16 for Fig.15 A partial enlarged view of II in the heat-not-burn cigarette cartridge provided in the embodiment. In this embodiment, the heat-not-burn cigarette cartridge 1 includes a tobacco unit 20 and a tube body 10 as described in the above embodiment, and the tobacco unit 20 is accommodated in the tube body 10; or the tobacco unit 20 is arranged on one side of the tube body 10.

[0103] In one embodiment (see Fig.13 and Figure 4 ), the tobacco unit 20 is accommodated in the tube body 10. In addition, the tube body 10 also includes a sealing portion 30, a cooling portion 40, a filtering portion 50 and a packaging portion 60. Among them, the sealing portion 30 is used to seal one end of the tube body 10 to prevent the tobacco unit 20 from falling out of the tube body 10. The tobacco unit 20 is accommodated in one end of the tube body 10 close to the sealing portion 30. The cooling portion 40 is accommodated in the tube body 10 and is arranged adjacent to the tobacco unit 20. The filtering portion 50 is accommodated in the tube body 10 and is arranged adjacent to the cooling portion 40, and is away from the tobacco unit 20 compared to the cooling portion 40. The packaging portion 60 is arranged around the tube body 10 to wrap the tube body 10.

[0104] In another embodiment (see Fig.15 and Fig.16), the tobacco unit 20 is arranged on one side of the tube body 10. In addition, the tube body 10 also includes an outer tube body 70, a sealing portion 30, a sealing portion 80, a filter portion 50 and a packaging portion 60. Among them, the sealing portion 30 is used to seal one end of the outer tube body 70. The tobacco unit 20 is accommodated in the end of the outer tube body 70 close to the sealing portion 30. The tube body 10 is accommodated in the outer tube body 70 and is arranged adjacent to the tobacco unit 20. The sealing portion 80 is arranged at least at one end of the two ends of the tube body 10 that are arranged opposite to each other, and the sealing portion 80 is at least arranged at one end of the tube body 10 close to the tobacco unit 20. The filter portion 50 is accommodated in the outer tube body 70, is arranged adjacent to the tube body 10, and is away from the tobacco unit 20 compared to the tube body 10. The packaging portion 60 is arranged around the outer tube body 70 to wrap the outer tube body 70.

[0105] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present application, and these improvements and modifications are also regarded as the scope of protection of the present application.

Claims

1. A method for preparing a tube body, wherein the tube body is used for a heat-not-burn cigarette cartridge, characterized in that: The method for preparing the tube body comprises: Providing a plurality of groups of paper, and gluing the plurality of groups of paper respectively, wherein the adhesive used for gluing comprises at least one of glutinous rice glue, overlapping glue, straw glue and white latex; The plurality of groups of paper sheets are overlapped and spliced ​​in an offset manner; wherein the “staggered, overlapped and spliced ​​plurality of groups of paper sheets” comprises: Arrange the plurality of groups of paper sheets in sequence along the width direction with a preset distance offset therefrom, wherein the preset distance d0 is: 4 mm ≤ d0 ≤ 5 mm; and The plurality of groups of paper are sequentially staggered and bonded together; Winding the multiple groups of paper at a preset angle; Using heating components disposed in two relatively rotating rollers to apply a rotational force to the plurality of groups of paper and heat the plurality of groups of paper, wherein the temperature at which the plurality of groups of paper are heated is 70° C. to 90° C.; and The wound groups of paper are cut to form a plurality of tubes.

2. The method for preparing a tube body according to claim 1, characterized in that: The “winding the plurality of groups of paper at a preset angle” includes: Overlapping the plurality of groups of paper with a fixed winding member at a preset angle, wherein the preset angle α is: 30°≤α≤60°; and The plurality of groups of paper are wound along the winding member at the preset angle and move along the axial direction of the winding member.

3. The method for preparing a tube body according to claim 1, characterized in that: The “providing multiple groups of paper and gluing the multiple groups of paper respectively” includes: Provide multiple sets of paper and arrange them in intervals; and In two adjacent groups of paper sheets, two surfaces arranged opposite to each other are coated with glue.

4. The method for preparing a tube body according to claim 1, characterized in that: After "winding the plurality of groups of paper at a preset angle" and before "cutting the wound plurality of groups of paper to form a plurality of tubes", the method for preparing the tube further includes: A rotational force is applied to the plurality of groups of paper sheets.

5. The method for preparing a pipe body according to claim 1, characterized in that: After the step of "cutting the wound groups of paper into a plurality of tubes", the method for preparing the tubes further comprises: Screening out the cutting residues formed by cutting the plurality of tube bodies; heating the plurality of tubes; and The plurality of tubes are collected.

6. A tube body, characterized in that: The tube is prepared by the preparation method according to any one of claims 1 to 5, wherein the tube has a first end and a second end disposed opposite to each other and an outer surface and an inner surface disposed opposite to each other, and the tube comprises: A plurality of tube layers, wherein the plurality of tube layers have an outer contour at a preset angle to a first direction between the first end and the second end, and the plurality of tube layers are staggered and overlapped in a second direction, wherein the first direction is a direction from the first end to the second end, and the second direction is a direction from the outer surface to the inner surface.

7. The tube body according to claim 6, characterized in that The preset angle α is: 30°≤α≤60°.

8. A heat-not-burn cigarette cartridge, characterized in that: The heat-not-burn tobacco cartridge comprises a tobacco unit and a tube body as claimed in claim 6 or 7, wherein the tobacco unit is accommodated in the tube body; or the tobacco unit is arranged on one side of the tube body.

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