Device for preparing atomizing core

Abstract

The utility model relates to the technical field of atomization core processing, in particular to a device for preparing an atomization core. The preparation device comprises a base and a forming structure, a mold core and a fixing hole are arranged on the base, the mold core is used for placing a heating part and fixing and supporting the heating part, and the position of the fixing hole corresponds to the position of a current lead and is used for allowing the current lead to penetrate through; the forming structure is provided with a cavity and a grouting port communicated with the cavity, when the forming structure is used in cooperation with the base, the mold core can be placed in the cavity, and a gap is reserved between the cavity and the mold core and used for injecting porous matrix slurry to form a porous matrix. By adopting the scheme of the embodiment, the operation difficulty of preparing the atomizing core can be reduced, and the production efficiency can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of atomizer core processing, and in particular to a device for preparing an atomizer core. Background Art

[0002] Existing atomizer cores primarily consist of a porous matrix and a heating element. Common porous matrixes include cotton and ceramic cores. Ceramic cores are experiencing increasing demand due to their long lifespan and superior flavor. Ceramic cores are primarily made of porous ceramics. The molding process for porous ceramics is a complex and critical process that directly impacts the quality, performance, and cost of the finished product.

[0003] At present, the molding operation of the heating element and the porous matrix (especially the ceramic core porous matrix) is difficult and the process flow is complicated. There is no device that can integrate the molding of single-shot atomizing core or multiple-shot atomizing cores. Utility Model Content

[0004] The present application provides a device for preparing an atomizer core, which effectively solves the problem that the process flow of ceramic cores and heating elements is complicated and difficult to process.

[0005] According to one embodiment of the present application, a device for preparing an atomizer core is provided, wherein the atomizer core includes a porous substrate and a heating element, wherein the heating element includes a heating portion and a current lead connected to the heating portion. The device for preparing the atomizer core includes: a base and a molding structure;

[0006] The base is provided with a core and a fixing hole; the core is used to place the heating part and fix and support the heating part, and the fixing hole is used for the current lead to pass through;

[0007] The molding structure has a mold cavity and a grouting port connected to the mold cavity. When the molding structure is used in conjunction with the base, the core is located in the mold cavity, and a distance is left between the outer surface of the core and the inner surface of the mold cavity. The distance is used for the injection of porous matrix slurry.

[0008] In a feasible embodiment, the core is arranged in a columnar shape and extends in a direction away from the base, and the heating element is sleeved on the core.

[0009] In a feasible embodiment, the heating element includes at least two heating parts, and is characterized in that there are at least two cores, the number of the cores corresponds to the number of the heating parts, and the cores are arranged at intervals.

[0010] In a feasible embodiment, the heating element includes at least three current leads, at least one of the current leads is electrically connected to at least two of the heating parts at the same time, and is characterized in that there are at least three fixing holes, and the number of the fixing holes corresponds one-to-one to the number of the current leads.

[0011] In one feasible embodiment, at least one first guide column is further provided on the base, the first guide column extends in a direction toward the forming structure, and a first guide hole is provided at a position of the forming structure corresponding to the first guide column, so that the first guide column can be guided and moved in the first guide hole; or, at least one first guide column is further provided on the forming structure, the first guide column extends in a direction toward the base, and a first guide hole is provided at a position of the base corresponding to the first guide column, so that the first guide column can be guided and moved in the first guide hole.

[0012] In one feasible embodiment, the molding structure includes a middle-section molding substructure and an upper cover structure, the molding cavity is arranged in the middle-section molding substructure, and the grouting port is arranged in the upper cover structure; when the upper cover structure is used in conjunction with the middle-section molding substructure, the grouting port is connected to the molding cavity.

[0013] In a feasible embodiment, the diameter of the grouting port gradually decreases along the grouting direction.

[0014] In one feasible embodiment, the opening area of ​​the grouting port on the side close to the middle section molding structure is smaller than the opening area of ​​the cavity on the side close to the upper cover structure.

[0015] In one feasible embodiment, the base is formed by splicing a first base and a second base; the side surface where the first base and the second base are spliced ​​together is a first splicing surface, and the side surface where the second base and the first base are spliced ​​together is a second splicing surface, and the first splicing surface and the second splicing surface match;

[0016] A first arc-shaped groove extending longitudinally is provided on the first splicing surface, and a second arc-shaped groove extending longitudinally is provided on the second splicing surface at a position corresponding to the first arc-shaped groove; after the first base and the second base are spliced ​​together, the first arc-shaped groove and the second arc-shaped groove form the fixing hole.

[0017] In one feasible embodiment, any one of a second guide post and a second guide hole is provided on the first splicing surface, and the other one of a second guide post and a second guide hole is provided on the second splicing surface, and the second guide post guides and moves in the second guide hole to separate or splice the first base and the second base.

[0018] In a feasible embodiment, a plurality of fixing holes are provided, and planes where the longitudinal cross sections of the plurality of fixing holes are located are located on the same plane.

[0019] In a feasible embodiment, there are at least three fixing holes, and planes where the longitudinal cross sections of any two of the fixing holes are located intersect.

[0020] In a feasible embodiment, there are at least four fixing holes. On a first cross section, at least four fixing holes are located at four vertices of a parallelogram or a rectangle, and the first cross section is perpendicular to an extension direction of the fixing holes.

[0021] According to the above embodiment, a device for preparing an atomizer core is applied to the preparation of an atomizer core, wherein the atomizer core includes a porous matrix and a heating element, and the heating element includes a heating portion and a current lead connected thereto. The device for preparing the atomizer core includes a base and a molding structure, and a core and a fixing hole are provided on the base, wherein the core is used to place the heating portion and fix and support the heating portion, and the position of the fixing hole corresponds to the position of the current lead, and is used for the current lead to pass through; the molding structure is provided with a mold cavity and a grouting port connected to the mold cavity, and when the molding structure is used in conjunction with the base, the core can be placed in the mold cavity, and a spacing is left between the mold cavity and the core for the injection of porous matrix slurry to form a porous matrix. By adopting the solution of the embodiment, the operational difficulty of preparing the atomizer core can be reduced and the production efficiency can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 An exploded view of the device for preparing the atomizer core of this embodiment;

[0023] Figure 2 This is a schematic top view of the first base of this embodiment;

[0024] Figure 3 Another exploded view of the device for preparing the atomizer core of this embodiment;

[0025] Figure 4 This is a structural schematic diagram of the first base of this embodiment;

[0026] Figure 5 For Figure 4 A schematic structural diagram of a second base matching the first base;

[0027] Figure 6 for Figure 2 A schematic diagram of the structure of the first base after the heating element is placed;

[0028] Figure 7 for Figure 6Schematic diagram of the structure after placing the mid-section forming substructure;

[0029] Figure 8 This is a schematic structural diagram of the second base of this embodiment;

[0030] Figure 9 for Figure 8 Schematic diagram of the structure after placing the heating element;

[0031] Figure 10 This is a schematic structural diagram of the third base of this embodiment;

[0032] Figure 11 This is a schematic diagram of the overall structure of the device for preparing the atomizer core of this embodiment after assembly;

[0033] Figure 12 This is a schematic structural diagram of an atomizer core according to this embodiment;

[0034] Figure 13 (a) and (b) are top views of bases of two different structures of the present application;

[0035] Figure 14 (a) and (b) are respectively able to adapt Figure 13 Schematic diagram of the structure of the heating element in (a) and (b).

[0036] Figure numerals: 10, base; 11, fixing hole; 12, core; 13, first guide column; 14, second guide column; 15, second guide hole; 16, first base; 161, first splicing surface; 162, first arc-shaped groove; 17, second base; 171, second splicing surface; 172, second arc-shaped groove; 20, molding structure; 21, mold cavity; 22, grouting port; 23, middle section molding substructure; 24, upper cover structure; 25, first guide hole; 30, atomizing core; 31, heating element; 311, heating part; 3111, first heating part; 3112, second heating part; 312, current lead; 3121, current input lead; 3122, current output lead; 32, spacing; 33, porous matrix. DETAILED DESCRIPTION

[0037] The present application is further described in detail below by means of specific embodiments in conjunction with the accompanying drawings. Similar elements in different embodiments are numbered with associated similar elements. In the following embodiments, many detailed descriptions are provided to enable the present application to be better understood. However, those skilled in the art will readily appreciate that some of the features may be omitted in different circumstances, or may be replaced by other elements, materials, or methods. In some cases, some operations related to the present application are not shown or described in the specification. This is to avoid the core portion of the present application being overwhelmed by excessive descriptions. For those skilled in the art, it is not necessary to describe these related operations in detail. They can fully understand the related operations based on the description in the specification and the general technical knowledge in the art.

[0038] In addition, the features, operations, or characteristics described in the specification may be combined in any appropriate manner to form various implementations, and the operational steps involved in each embodiment may be interchanged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for the purpose of clearly describing a particular embodiment and do not imply a required composition and / or sequence.

[0039] The serial numbers assigned to components herein, such as "first," "second," etc., are used solely to distinguish the objects being described and do not convey any sequential or technical meaning. References to "connection" and "coupling" herein, unless otherwise specified, include both direct and indirect connections (couplings).

[0040] refer to Figure 1 and Figure 12 The embodiment of the present application provides a device for preparing an atomizer core 30, wherein the atomizer core 30 includes a heating element 31 and a porous substrate 33, wherein the heating element 31 includes a heating portion 311 and a current lead 312 connected to the heating portion 311. The preparation device of this embodiment is used to prepare the atomizer core 30 described above. In other words, the preparation device of this embodiment is a mold for preparing the atomizer core 30.

[0041] Specifically, the device for preparing the atomizer core 30 includes a base 10 and a molding structure 20. A core 12 and a fixing hole 11 are provided on the base 10. The core 12 is used to place the heating part 311 and fix the heating part 311; the fixing hole 11 is used for the current lead 312 to pass through. The molding structure 20 has a cavity 21 and a grouting port 22 connected to the cavity. When the molding structure 20 and the base 10 are used in conjunction, the core 12 can be placed in the cavity 21, and when the core 12 is placed in the cavity 21, a distance is left between the outer surface of the core 12 and the inner surface of the cavity 21. The distance is used for the injection of porous matrix slurry to form the above-mentioned porous matrix 33. The preparation device of this embodiment can be used to integrally mold the atomizer core 30, reduce the difficulty of operation, and improve production efficiency.

[0042] The heating portion 311 is generally in the shape of an arc with a hollow channel, such as a spiral heating wire (refer to Figure 9 or Figure 14 a), or rolled into a heating sheet with a hollow channel (refer to Figure 14 b) etc. In this case, the core 12 may be cylindrical and extend in a direction away from the base 10 , the heating portion 311 is sleeved on the core 12 , and the shape of the core 12 is generally adapted to the hollow channel of the heating portion 311 .

[0043] In actual applications, the heating element 31 may have two or more heating parts 311. Generally, when the two or more heating parts 311 are not arranged along the axial direction, the number of cores 12 should correspond to the number of heating parts, and the cores 12 should be spaced apart. In addition, in actual applications, further, the current lead 312 may have three or more, and at least one current lead 312 will be connected to at least two heating parts 311 at the same time. For details, please refer to Figure 14 This setting is generally intended to enable multiple (including dual) heating parts 311 to work simultaneously or alternately in a cycle. For heating elements with three or more current leads 312, the number of fixing holes 11 in the device of this application should also correspond to the number of current leads 312.

[0044] The following describes an example of preparing an atomizer core 30 having two heating portions 311 (hereinafter collectively referred to as a first heating portion 3111 and a second heating portion 3112 for ease of description) and three current leads 312 (two current input leads 3121 and one current output lead 3122).

[0045] As a specific implementation method, refer to Figure 1 、 Figure 2 、 Figure 9 and Figure 12The upper surface of the base 10 is provided with two cores 12 and three fixing holes 11, wherein the positions and sizes of the two cores 12 are respectively adapted to the hollow structures (i.e., hollow channels) of the first heating part 3111 and the second heating part 3112, and the position of the fixing hole 11 corresponds to the position of the current lead 312, for allowing the current output lead 3122 or the current input lead 3121 to pass through, wherein the current lead 312 includes a current output lead 3122 and a current input lead 3121.

[0046] When making the atomizer core 30, first, the current output lead 3122 and the current input lead 3121 of the heating element 31 are respectively inserted into the fixing hole 11, and the two cores 12 of the base 10 are respectively placed in the hollow structure of the heating element 31 (the installation method is as follows). Figure 6 or Figure 9 As shown). Then, the molding structure 20 is placed on the base 10. Specifically, the core 12 of the base 10 (and the heating element 31 provided on the core 12) is placed in the cavity 21 of the molding structure 20. After matching, the slurry is injected into the cavity 21 through the grouting port 22 so that the slurry wraps the heating element 31. The injected slurry is formed into a porous matrix 33 after molding. The porous matrix 33 and the heating element 31 are fixed into a whole through subsequent process steps to form an atomizer core 30. Finally, the atomizer core 30 is demoulded from the preparation device (ie, the mold) to obtain an atomizer core 30 with a double heating portion. The preparation device of this embodiment can be used to integrally mold a double-hair atomizer core 30, which reduces the difficulty of operation and improves production efficiency.

[0047] As a further improvement of this embodiment, at least one first guide column 13 is further provided on the base 10, and the first guide column 13 extends in the direction toward the molding structure 20. The molding structure 20 is provided with a first guide hole 25 at a position corresponding to the first guide column 13, so that the first guide column 13 can be guided and moved in the first guide hole 25; of course, the first guide column 13 can also be provided on the molding structure 20, and the first guide hole 25 can be provided on the base 10.

[0048] In a specific implementation of this embodiment, the first guide post 13 can be vertically arranged on the upper surface of the base 10. At the same time, a first guide hole 25 corresponding to the first guide post 13 is provided on the molding structure 20, so that when the molding structure 20 is placed on the base 10, the first guide hole 25 can just match the first guide post 13, so that the molding structure 20 can cooperate with the base 10 under the guidance of the first guide post 13. This embodiment can play a guiding role by providing the first guide post 13 and the first guide hole 25 matched with the first guide post 13, so as to ensure that the molding structure 20 can better match the cavity 21 with the core 12 when placed on the base 10, and the molding structure 20 will not move during the casting process, thereby improving the yield rate. Specifically, the first guide posts 13 of this embodiment can be set to four, and evenly arranged around the core 12 to ensure the stability of the mold during installation.

[0049] Furthermore, as an embodiment, the molding structure 20 is configured to include a middle-section molding substructure 23 and an upper cover structure 24, wherein the mold cavity 21 is arranged in the middle-section molding substructure 23, and the grouting port 22 is arranged in the upper cover structure 24; when the upper cover structure 24 is used in conjunction with the middle-section molding substructure 23, the grouting port 22 is connected to the mold cavity 21.

[0050] refer to Figure 1 and Figure 3 When using the molding structure 20 of this embodiment, the middle molding substructure 23 and the upper cover structure 24 are sequentially placed on the base 10. Slurry is then injected into the mold cavity 21 through the grouting port 22. The specific process for making the atomizer core 30 is the same as the process for making the molding structure 20 as a single unit. This design facilitates mold installation and removal, and also makes demolding easier. Furthermore, the addition of the upper cover structure 24 can prevent slurry overflow.

[0051] In this embodiment, if Figure 7 The figure shows the structure of the middle section molding substructure 23 when it is installed on the base 10. A gap 32 is provided between the outer surface of the core 12 and the inner surface of the cavity 21. During grouting, the slurry will fill the gap 32 to form a porous matrix 33. The extension length of the core 12 is generally set to be greater than or equal to the depth of the cavity 21.

[0052] For further reference, Figure 11 In this embodiment, the diameter of the grouting port 22 gradually decreases along the grouting direction. This arrangement ensures that the porous matrix slurry can be easily injected into the mold cavity 21.

[0053] Furthermore, the opening area of ​​the grouting port 22 of this embodiment, which is closer to the middle sub-molding structure 23, is smaller than the opening area of ​​the cavity 21, which is closer to the upper cover structure 24. This arrangement allows the slurry to be injected into the cavity 21 through the grouting port 22 at a controlled injection speed, thereby ensuring the quality of the porous matrix 33 formed in the final form. Furthermore, it further ensures that the injected slurry does not overflow.

[0054] For further reference, Figure 3 、 Figure 4 and Figure 5 The base 10 of this embodiment is composed of a first base 16 and a second base 17; the side surface where the first base 16 and the second base 17 are spliced ​​together is a first splicing surface 161, and the side surface where the second base 17 and the first base 16 are spliced ​​together is a second splicing surface 171, and the first splicing surface 161 and the second splicing surface 171 match each other; a first arc-shaped groove 162 is provided on the first splicing surface 161 and extends through the first splicing surface 162 in the longitudinal direction, and a second arc-shaped groove 172 is provided on the second splicing surface 171 and extends through the first splicing surface 162 in the longitudinal direction at a position corresponding to the first arc-shaped groove 162; after the first base 16 and the second base 17 are spliced ​​together, the first arc-shaped groove 162 and the second arc-shaped groove 172 form a fixing hole 11.

[0055] refer to Figure 3-Figure 5 ,as well as Figure 8 In this embodiment, the base 10 is configured to be composed of a first base 16 and a second base 17. Specifically, the side surface where the first base 16 and the second base 17 are spliced ​​together is referred to as the first splicing surface 161, and the side surface where the second base 17 and the first base 16 are spliced ​​together is referred to as the second splicing surface 171, wherein the first splicing surface 161 and the second splicing surface 171 match. To put it another way, the base 10 is divided into the first base 16 and the second base 17 along the fixing hole 11. Therefore, a first arcuate groove 162 is provided on the first splicing surface 161, and a second arcuate groove 172 is provided on the second splicing surface 171 at a position corresponding to the first arcuate groove 162. After the first base 16 and the second base 17 are spliced ​​together, the first arcuate groove 162 and the second arcuate groove 172 form the fixing hole 11. This design effectively reduces the difficulty of threading the three leads, and also facilitates the demolding of the current input lead 3121 and the current output lead 3122. The longitudinal direction mentioned in this embodiment is also the direction in which the current lead 312 is inserted.

[0056] During actual operation, the current lead 312 is first placed in the first arc-shaped groove 162 or the second arc-shaped groove 172, and then the first base 16 or the second base 17 is pushed to make the first base 16 and the second base 17 be spliced ​​together. At this time, the current lead 312 is located in the fixing hole 11, and then the heating element 31 is pushed downward so that the heating part 311 of the heating element 31 is sleeved on the core 12 (specifically, the hollow structure of the first heating part 3111 and the second heating part 3112 is sleeved into the core 12 from top to bottom along the height direction), and then the subsequent grouting process is carried out.

[0057] For further reference, Figure 4 and Figure 5 Either the second guide post 14 or the second guide hole 15 is provided on the first splicing surface 161, and the other of the second guide post 14 and the second guide hole 15 is provided on the second splicing surface 171. The second guide post 14 guides and moves in the second guide hole 15 to separate or splice the first base 16 and the second base 17.

[0058] Specifically, a second guide column 14 is provided on the first splicing surface 161 of the first base 16, and the second guide column 14 can be provided perpendicular to the first splicing surface 161; a second guide hole 15 is provided on the second splicing surface 171 of the second base 17 at a position corresponding to the second guide column 14, and when the first base 16 and the second base 17 are spliced ​​together, the second guide column 14 passes through the second guide hole 15, so that the first base 16 and the second base 17 are better spliced ​​together. The working principle of the second guide column 14 is the same as that of the first guide column 13. Alternatively, the second guide column 14 can be provided on the second splicing surface 171, and the second guide hole 15 can be provided on the first splicing surface 161 at a position corresponding to the second guide column 14, and the second guide hole 15 is used for the second guide column 14 to pass through; the first base 16 and the second base 17 are spliced ​​together through the second guide column 14 and the second guide hole 15.

[0059] In one embodiment, the base 10 is provided with a plurality of (more than two) fixing holes 11, and the planes of the longitudinal cross sections of the plurality of fixing holes 11 are located on the same plane. Figure 8 and Figure 13 (a), that is, in this embodiment, a plurality of fixing holes 11 are arranged side by side. Correspondingly, as an example, the base 10 of this structure can be used to place Figure 14 (a) shows the heating element 31; of course, it can also be adapted to any heating element 31 with multiple current leads 312 arranged side by side.

[0060] In another embodiment, at least three fixing holes 11 are provided on the base 10, and the planes of the longitudinal cross-sections of any two fixing holes 11 intersect. For example, if there are three fixing holes 11, defined as hole a, hole b, and hole c, then the plane where holes a and b are located intersects with the plane where holes a and c are located. In this embodiment, taking the example of three fixing holes 11, specifically, referring to Figures 2 to 5 、 Figure 10 and Figure 13 (b) It can be understood that the three fixing holes 11 of this embodiment are respectively located at the three vertices of a triangle. Correspondingly, as an example, Figure 13 The base 10 of (b) can be used to place Figure 14 (b) The heat generating element 31 is shown.

[0061] In another embodiment, there are at least four fixing holes 11. On a first cross-section, at least four fixing holes are located at the four vertices of a parallelogram or rectangle, wherein the first cross-section is perpendicular to the extending direction of the fixing holes. That is, when there are four fixing holes, the four fixing holes are located at the four vertices of the parallelogram or rectangle; when there are more than four fixing holes, at least four fixing holes are located at the four vertices of the parallelogram or rectangle.

[0062] In the above embodiment, when there is only one core 12, the core 12 can be located on the first base 16 or on the second base 17; or, a portion of the core 12 can be located on the first base 16 and the other portion can be located on the second base 17. After the first base 16 and the second base 17 are assembled, the two portions can be assembled to form the complete core 12. When there are more than two cores 12, a portion of the core 12 can be located on the first base 16 and the other portion can be located on the second base 17. For details, please refer to Figure 8 、 Figure 9 、 Figure 10 and Figure 13 Alternatively, at least one core 12 may be partially located on the first base 16 and partially located on the second base 17. After the first base 16 and the second base 17 are assembled, a plurality of (including two) cores 12 are formed. Figures 1 to 5 The distribution of the cores 12 can be adjusted according to the structure of the heating element to be produced, and is not particularly limited here.

[0063] The above examples are used to illustrate the present invention, which are only used to help understand the present invention and are not intended to limit the present invention. Those skilled in the art of the present invention can make some simple deductions, modifications or substitutions based on the concept of the present invention.

Claims

1. A device for preparing an atomizer core, the atomizer core comprising a porous substrate and a heating element, the heating element comprising a heating portion and a current lead connected to the heating portion, characterized in that: The device for preparing the atomizer core includes: a base and a molding structure; The base is provided with a core and a fixing hole; the core is used to place the heating part and fix and support the heating part, and the fixing hole is used for the current lead to pass through; The molding structure has a mold cavity and a grouting port connected to the mold cavity. When the molding structure is used in conjunction with the base, the core is located in the mold cavity, and a distance is left between the outer surface of the core and the inner surface of the mold cavity. The distance is used for the injection of porous matrix slurry.

2. The device for preparing an atomizer core according to claim 1, characterized in that: The core is arranged in a columnar shape and extends in a direction away from the base, and the heating element is sleeved on the core.

3. The device for preparing an atomizer core according to claim 2, characterized in that: The heating element includes at least two heating parts, and there are at least two cores. The number of the cores corresponds to the number of the heating parts, and the cores are arranged at intervals.

4. The device for preparing an atomizer core according to claim 3, characterized in that: The heating element includes at least three current leads, at least one of the current leads is electrically connected to at least two of the heating parts at the same time, there are at least three fixing holes, and the number of the fixing holes corresponds to the number of the current leads.

5. The device for preparing an atomizer core according to claim 1, wherein: The base is further provided with at least one first guide post, the first guide post extending in a direction toward the forming structure, and the forming structure is provided with a first guide hole at a position corresponding to the first guide post, so that the first guide post can be guided and moved in the first guide hole; or, At least one first guide column is also provided on the molding structure, and the first guide column extends in a direction toward the base. The base is provided with a first guide hole at a position corresponding to the first guide column, so that the first guide column can be guided and moved in the first guide hole.

6. The device for preparing an atomizer core according to claim 1, wherein: The molding structure includes a middle-section molding substructure and an upper cover structure, the molding cavity is arranged in the middle-section molding substructure, and the grouting port is arranged in the upper cover structure; when the upper cover structure is used in conjunction with the middle-section molding substructure, the grouting port is connected to the molding cavity.

7. The device for preparing an atomizer core according to claim 5, characterized in that: The diameter of the grouting port gradually decreases along the grouting direction.

8. The device for preparing an atomizer core according to claim 6, wherein: The opening area of ​​the grouting port on the side close to the middle section molding structure is smaller than the opening area of ​​the cavity on the side close to the upper cover structure.

9. The device for preparing an atomizer core according to any one of claims 1 to 8, characterized in that: The base is composed of a first base and a second base; the side surface where the first base and the second base are joined is a first joint surface, the side surface where the second base and the first base are joined is a second joint surface, and the first joint surface and the second joint surface match; A first arc-shaped groove extending longitudinally is provided on the first splicing surface, and a second arc-shaped groove extending longitudinally is provided on the second splicing surface at a position corresponding to the first arc-shaped groove; after the first base and the second base are spliced ​​together, the first arc-shaped groove and the second arc-shaped groove form the fixing hole.

10. The device for preparing an atomizer core according to claim 9, characterized in that: Any one of the second guide post and the second guide hole is provided on the first splicing surface, and the other one of the second guide post and the second guide hole is provided on the second splicing surface. The second guide post guides and moves in the second guide hole to separate or splice the first base and the second base.

11. The device for preparing an atomizer core according to claim 9, wherein: There are multiple fixing holes, and the planes where the cross sections of the multiple fixing holes along the longitudinal direction are located are located on the same plane.

12. The device for preparing an atomizer core according to claim 9, wherein: The planes where the longitudinal cross sections of any two fixing holes are located intersect.

13. The device for preparing an atomizer core according to claim 9, wherein: There are at least four fixing holes. On a first cross section, at least four fixing holes are located at four vertices of a parallelogram or a rectangle. The first cross section is perpendicular to an extending direction of the fixing holes.

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