Mold structure for forming a housing of an atomizing device

Abstract

The application discloses a mold structure for forming a shell of an atomizing device, and a first cavity is formed by cooperation of a movable mold body, an insert assembly and a ejector pin. When the shell is demolded, first, the insert assembly is moved away from a limiting groove, and the shell is core-pulled. Then, the ejector pin which is slidably arranged in a through hole is moved along the through hole to approach the limiting groove, and the shell is ejected out of the first cavity to complete the demolding. The through hole can disperse the radial load borne by the ejector pin, and the ejection force applied by the ejector pin after the core-pulling of the shell is greatly reduced, so that the structural stability of the ejector pin can be improved, the condition that the ejector pin is easily broken due to the large viscosity of the shell material can be avoided, and therefore the operation stability of the mold structure and the production efficiency of the shell can be improved.

Description

Technical Field

[0001] This application relates to the field of electronic atomization device manufacturing technology, specifically to a mold structure for forming the housing of an atomization device. Background Technology

[0002] In the mold-making process, the base is usually demolded using ejector pins. Currently, the bases of electronic atomizing devices are generally made of highly viscous materials such as PCTG (polyethylene terephthalate-1,4-cyclohexanediol). If ejector pins are still used to form the base, the high viscosity of the base material can easily cause the ejector pins to break during the production process, requiring frequent mold changes and affecting production efficiency. Utility Model Content

[0003] This application provides a mold structure for molding the housing of an atomizing device, which solves the problem of frequent mold changes due to ejector pin breakage affecting product production efficiency.

[0004] In one embodiment, a mold structure for molding a housing of an atomizing device is provided. The mold structure includes: a moving mold body having a limiting groove and a core-pulling cavity, the limiting groove communicating with the core-pulling cavity and defining the position of the housing; an insert assembly movably embedded in the core-pulling cavity, facing or away from the limiting groove, and the insert assembly including a through hole, wherein the insert assembly can pull the core of the housing when moving away from the limiting groove; and an ejector pin closing one end of the through hole to cooperate with the insert assembly and the moving mold body to form a first cavity, wherein the ejector pin is slidably disposed in the through hole and is used to eject the housing in the first cavity when moving along the through hole toward the limiting groove.

[0005] In one embodiment, the moving mold body has a stepped limiting edge that defines the limiting groove and restricts the travel of the insert assembly.

[0006] In one embodiment, the through hole includes a limiting hole and a connecting hole, the connecting hole communicating with the limiting hole, and the limiting hole being located at one end of the connecting hole facing the limiting groove; the ejector pin is slidably disposed in the connecting hole, and the first cavity includes the limiting hole.

[0007] In one embodiment, the insert assembly includes a first insert and a second insert, the limiting hole is formed in the first insert, the connecting hole is formed in the second insert, the second insert is embedded in the first insert, and the ejector pin passes through the second insert.

[0008] In one embodiment, the end of the ejector pin near the limiting hole is flush with the end of the connecting hole near the limiting hole, the limiting hole is a tapered hole, and the tapered hole has the smallest size at the end near the connecting hole.

[0009] In one embodiment, the limiting hole is a slow wire cutting hole.

[0010] In one embodiment, the width of the core-pulling cavity gradually narrows from the opening near the core-pulling cavity to the direction near the limiting groove.

[0011] In one embodiment, the limiting hole includes a first groove and a second groove, the first groove and the second groove being connected, wherein the second groove is disposed close to the ejector pin, and the diameter of the second groove is smaller than the diameter of the first groove.

[0012] In one embodiment, the number of limiting holes is set to at least two, and the number of ejector pins is adapted to the number of limiting holes.

[0013] In one embodiment, the mold structure further includes a fixed mold body, which, in shape, cooperates with the moving mold body to form a second cavity communicating with the first cavity.

[0014] According to the above embodiment, the mold structure for forming the housing of an atomizing device comprises a moving mold body, an insert assembly, and an ejector pin to form a first cavity. During housing demolding, the insert assembly first moves away from the limiting groove, thus pulling the core of the housing. Then, the ejector pin, slidably positioned within the through hole, moves along the through hole towards the limiting groove, ejecting the housing out of the first cavity to complete demolding. The through hole disperses the radial load on the ejector pin, and the ejection force required from the ejector pin after core pulling is greatly reduced. This improves the structural stability of the ejector pin, preventing breakage due to high viscosity of the housing material, thereby enhancing the operational stability of the mold structure and increasing housing production efficiency. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram of a mold structure used to form the housing of an atomizing device in one embodiment;

[0016] Figure 2 This is a top view schematic diagram of a mold structure used to form the housing of an atomizing device in one embodiment;

[0017] Figure 3 for Figure 1 A schematic diagram of the cross-sectional structure of the mold structure used to form the housing of the atomizing device along point AA;

[0018] Figure 4This is a three-dimensional structural diagram of the housing located on a mold structure for forming the housing of an atomizing device in one embodiment;

[0019] Figure 5 This is a schematic cross-sectional view of the overall structure of the housing and the mold structure for forming the atomizing device in one embodiment;

[0020] Figure 6 This is a schematic diagram of the structure of the insert assembly being pulled from the housing in one embodiment;

[0021] Figure 7 This is a schematic diagram of a structure in one embodiment where the ejector pin pushes the housing out of the first cavity;

[0022] Figure 8 This is a schematic cross-sectional view of a mold structure used to form the housing of an atomizing device in one embodiment;

[0023] The accompanying diagrams are labeled as follows:

[0024] 1. Moving mold body; 101. Limiting groove; 102. Core-pulling cavity; 11. Limiting edge; 2. Insert assembly; 201. Through hole; 2011. Limiting hole; 20111. First hole groove; 20112. Second hole groove; 2012. Connecting hole; 21. First insert; 22. Second insert; 3. Ejector pin; 4. Fixed mold body; 5. Shell. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0026] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments. At the same time, the steps or actions in the method description can be rearranged or adjusted in a manner obvious to those skilled in the art. Therefore, the various orders in the specification and drawings are only for the clear description of a particular embodiment and do not imply a necessary order, unless otherwise stated that a particular order must be followed.

[0027] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0028] Existing mold structures suffer from problems such as ejector pin breakage due to factors like the high viscosity of the base material, requiring frequent mold changes and impacting product production efficiency.

[0029] In this application, a first cavity is formed by the cooperation of a moving mold body, an insert assembly, and an ejector pin. During shell demolding, the insert assembly first moves away from the limiting groove, thus pulling the core of the shell. Then, the ejector pin, which is slidably positioned within the through hole, moves along the through hole towards the limiting groove, ejecting the shell out of the first cavity to complete demolding. The through hole disperses the radial load on the ejector pin, and the ejection force required from the ejector pin after core pulling is greatly reduced. This improves the structural stability of the ejector pin, preventing breakage due to high viscosity of the shell material, thereby enhancing the operational stability of the mold structure and increasing shell production efficiency.

[0030] In one embodiment, the housing mentioned in this application may include, but is not limited to, injection-molded parts such as the base and fixing bracket of the atomizing device. The atomizing device refers to a device that uses electronic heating to convert a liquid matrix into an inhalable aerosol.

[0031] Please refer to Figures 1 to 7 In one embodiment, a mold structure for molding the housing of an atomizing device is provided, the mold structure may include a moving mold body 1, an insert assembly 2, and an ejector pin 3.

[0032] Reference Figure 1 , Figure 2 as well as Figure 4 As shown, the moving mold body 1, also known as the moving mold, is one component of the mold structure. It enables mold opening and closing actions and is used for demolding the housing 5. The moving mold body 1 has a limiting groove 101 and a core-pulling cavity 102. The limiting groove 101 communicates with the core-pulling cavity 102, and the limiting groove 101 is used to limit the position of the housing 5. For example, after the moving mold body 1 moves to partially demold the housing 5, the housing 5 can be structurally supported by the moving mold body 1 under the position limitation of the limiting groove 101. The core-pulling cavity 102 is used to accommodate the moving mold insert. The moving mold insert can be understood as a molding component detachably connected to the moving mold body 1, which is used to mold the complex structure of the housing 5. For example, the complex structure may include, but is not limited to, columns, irregular protrusions, and irregular cavities.

[0033] Reference Figure 1 , Figure 2 , Figure 3 as well as Figure 5 As shown, the insert assembly 2, as a moving mold insert, can be movably embedded in the core-pulling cavity 102, facing or away from the limiting groove 101. In other words, under the driving force of an external force, the insert assembly 2 can move towards (or closer to) the limiting groove 101 of the moving mold body 1, and away from (or away from) the limiting groove 101 of the moving mold body 1, under the limiting cooperation of the core-pulling cavity 102.

[0034] Furthermore, referring to Figure 6 As shown, when the insert assembly 2 moves away from the limiting groove 101, the housing 5 is pulled out, that is, a portion of the insert assembly 2 is extracted from the inside of the housing 5, which can be regarded as the second partial demolding of the housing 5. For example, when the insert assembly 2 and the moving mold body 1 are distributed vertically, the insert assembly 2 can move downwards away from the limiting groove 101 under the drive of external force.

[0035] The insert assembly 2 may further include a through hole 201, and the ejector pin 3 closes one end of the through hole 201 to cooperate with the insert assembly 2 and the moving mold body 1 to form a first cavity. The ejector pin 3 is slidably disposed within the through hole 201 and is used to eject the housing 5 from the first cavity when moving along the through hole 201 towards the limiting groove 101. The ejector pin 3 is a component used to eject the molded housing 5 from the first cavity; it may also be referred to as an ejector rod, ejector pin 3 rod, or push rod. The ejector pin 3 is slidably connected in the through hole 201, and the end of the ejector pin 3 near the limiting groove 101 is used to close the through hole 201. In other words, the ejector pin 3 is used to close the first cavity. Thus, with the ejector pin 3 closing the first cavity, the housing 5 is injection molded in the closed first cavity using an injection molding process.

[0036] After injection molding, the shell 5 can abut against the ejector pin 3. When it is close to the limiting groove 101 along the through hole 201, the shell 5 can be ejected out of the limiting groove 101 of the moving mold body 1 according to the abutment force, thereby realizing the complete demolding of the shell 5.

[0037] Because the insert assembly 2 undergoes core pulling first, the contact area between the housing 5 and the mold structure is greatly reduced, and the adhesion between the housing 5 and the moving mold body 1 during demolding is significantly reduced, thus resulting in a smaller force load on the ejector pin 3. Simultaneously, the through hole 201 limits the radial offset of the ejector pin 3, preventing excessive radial load on the ejector pin 3 and potential breakage. In summary, this improves the structural stability of the ejector pin 3, avoids situations where the high viscosity of the housing 5 material leads to easy breakage of the ejector pin 3, and simultaneously enhances the operational stability of the mold structure and the production efficiency of the housing 5.

[0038] In one or more embodiments, reference is made to Figure 3 , Figure 5 , Figure 6 as well as Figure 7 As shown, the moving mold body 1 has a stepped limiting edge 11, which defines the limiting groove 101 and restricts the movement stroke of the insert assembly 2.

[0039] In this embodiment, a stepped limiting edge 11 defines the limiting groove 101. On one hand, the limiting edge 11 forms a limiting fit with the housing 5, thereby limiting the position of the housing 5. The limiting edge 11 is adapted to the contact surface of the insert assembly 2, thereby enabling the insert assembly 2 to move. For example, when the insert assembly 2 moves towards the limiting groove 101, it abuts against the limiting edge 11, thereby stopping the insert assembly 2.

[0040] In one or more embodiments, reference is made to Figure 1 , Figure 5 and Figure 6 As shown, the through hole 201 includes a limiting hole 2011 and a connecting hole 2012. The connecting hole 2012 communicates with the limiting hole 2011, and the limiting hole 2011 is located at one end of the connecting hole 2012 facing the limiting groove 101. The ejector pin 3 is slidably disposed within the connecting hole 2012, and the first cavity includes the limiting hole 2011.

[0041] In this embodiment, the through hole 201 may include a limiting hole 2011 and a connecting hole 2012, wherein the connecting hole 2012 can communicate with the limiting hole 2011 along its length. The limiting hole 2011 is located at one end of the connecting hole 2012 facing the limiting groove 101. The ejector pin 3 can slide within the connecting hole 2012, thereby moving towards or away from the limiting hole 2011 along the connecting hole 2012. The inclusion of the limiting hole 2011 in the first cavity can be understood as the limiting hole 2011 being part of the first cavity for injection molding of the housing 5. When the ejector pin 3 moves towards the limiting hole 2011, the ejector pin 3 can close the end of the limiting hole 2011 facing the connecting hole 2012, thereby forming a closure of the first cavity through the ejector pin 3.

[0042] In one or more embodiments, reference is made to Figure 3 , Figure 5 , Figure 6 as well as Figure 7 As shown, the insert assembly 2 includes a first insert 21 and a second insert 22. The limiting hole 2011 is opened in the first insert 21, the connecting hole 2012 is opened in the second insert 22, the second insert 22 is embedded in the first insert 21, and the ejector pin 3 is disposed through the second insert 22.

[0043] In this embodiment, the second insert 22 is slidably fitted into the first insert 21. The first insert 21 and the second insert 22 cooperate and can move toward or away from the limiting groove 101. The first insert 21 has the limiting hole 2011, and the second insert 22 has the connecting hole 2012. The ejector pin 3 passes through the connecting hole 2012 of the second insert 22. By increasing the limiting effect of the second insert 4 on the ejector pin 3, the axial limiting length of the ejector pin 3 by the mold structure is improved. This further improves the running stability of the ejector pin 3 and reduces the radial offset generated by the ejector pin 3 during movement. In one embodiment, the second insert 4 may include one of the following shapes: a cylinder and a cuboid.

[0044] When the ejector pin 3 moves toward the limiting groove 101, it can slide and engage with the second insert 22 and the first insert 21 respectively, and abut against the column of the housing 5 from the limiting hole 2011 of the first insert 21 toward the limiting groove 101. Based on the abutment force, the housing 5 is pushed out of the limiting groove 101 of the moving mold body 1, thereby realizing the complete demolding of the housing 5.

[0045] In one or more embodiments, reference is made to Figure 3 and Figure 5 As shown, the end of the ejector pin 3 near the limiting hole 2011 is flush with the end of the connecting hole 2012 near the limiting hole 2011. The limiting hole 2011 is a tapered hole, and the size of the tapered hole is smallest at the end near the connecting hole 2012.

[0046] In this embodiment, the end of the ejector pin 3 near the limiting hole 2011 is flush with the end of the second insert 4 near the limiting hole 2011. This ensures the surface flatness of the cylindrical body of the housing 5, preventing some injection molding material from accumulating at the junction of the ejector pin 3 and the second insert 4, thus avoiding defects such as burrs or burning. Furthermore, the flushness of the ends of the ejector pin 3 and the second insert 4 improves the uniformity of the injection molding material filling at this junction. The limiting hole 2011 is a tapered hole, with the smallest dimension at the end near the connecting hole 2012. Correspondingly, the smallest dimension of the cylindrical body of the housing 5 along the tapered hole near the connecting hole 2012, and the largest dimension along the end of the tapered hole away from the connecting hole 2012. In other words, this structural shape of the limiting hole 2011 allows the cylindrical body of the housing 5 to gradually decrease in size along its height. This can improve the structural strength of the housing 5, while also further reducing the contact area between the housing 5 and the ejector pin 3, avoiding excessive adhesion of the injection molding material of the housing 5 to the ejector pin 3, thereby improving the operational stability of the ejector pin 3.

[0047] In one or more embodiments, reference is made to Figure 3 , Figure 5 , Figure 6 as well as Figure 7 As shown, the width of the core-pulling cavity 102 gradually narrows from the opening near the core-pulling cavity 102 to the direction near the limiting groove 101.

[0048] In this embodiment, the width d of the core-pulling cavity 102 gradually narrows from near the opening of the core-pulling cavity 102 to near the limiting groove 101. This can be understood as the insert assembly 2 forming a guide at the wider opening of the core-pulling cavity 102 during the reset process (the process of forming a first cavity in cooperation with the moving mold body 1 and the ejector pin 3), thereby improving the ease of assembly of the insert assembly 2 into the core-pulling cavity 102. Furthermore, as the insert assembly 2 gradually approaches the limiting groove 101, the gradually narrowing width reduces assembly wear and frictional resistance between the first insert 21 and the moving mold body 1 during movement. Simultaneously, it expands the error range of the machining dimensions at the opening of the core-pulling cavity 102, effectively reducing the production cost of the mold structure. Correspondingly, the outer peripheral surface of the insert assembly 2 that mates with the core-pulling cavity 102 is an inclined conical surface, which matches the shape of the core-pulling cavity 102, thereby improving the ease with which the insert assembly 2 can be removed from the core-pulling cavity 102.

[0049] In one or more embodiments, reference is made to Figure 3 , Figure 5 , Figure 6 as well as Figure 7 As shown, the limiting hole 2011 includes a first groove 20111 and a second groove 20112. The first groove 20111 and the second groove 20112 are connected. The second groove 20112 is located close to the ejector pin 3, and the diameter of the second groove 20112 is smaller than the diameter of the first groove 20111.

[0050] In this embodiment, the limiting hole 2011 may include a first groove 20111 and a second groove 20112. The first groove 20111 is connected to the first groove 20111, and the central axis of the first groove 20111 coincides with the central axis of the second groove 20112. The second groove 20112 is located close to the ejector pin 3, and its diameter is smaller than that of the first groove 20111. Therefore, the column of the housing 5 obtained by injection molding through the limiting hole 2011 is stepped, which improves the structural strength of the column and avoids breakage due to its small diameter when the column is long, thus improving the overall quality of the housing 5.

[0051] In one or more embodiments, reference is made to Figure 1 , Figure 3 , Figure 4 as well as Figure 5 As shown, the number of limiting holes 2011 is set to at least two, and the number of ejector pins 3 is adapted to the number of limiting holes 2011.

[0052] In this embodiment, the number of limiting holes 2011 is set to at least two, and the at least two limiting holes 2011 are evenly distributed on the first insert 21. For example, the central axes of the at least two limiting holes 2011 are arranged parallel to each other. The number of limiting holes 2011 is adapted to the number of ejector pins 3, which can be understood as the number of limiting holes 2011 being consistent with the number of ejector pins 3. By setting at least two ejector pins 3, the ejection force can be further dispersed, thereby further improving the operational stability of the ejector pins 3.

[0053] In one or more embodiments, refer to Figure 3 and Figure 5 As shown, the limiting hole 2011 is a slow wire cutting hole.

[0054] In this embodiment, the slow wire cutting hole can be understood as the hole wall of the limiting hole 2011 being surface-treated using a slow wire cutting process, thereby improving the smoothness of the limiting hole 2011. This allows the electrode wire to pass through the limiting hole 2011 and the connecting hole 2012, and the hole wall of the limiting hole 2011 is cut through the rotation of the electrode wire. This avoids the high surface roughness caused by electrical discharge polishing at the limiting hole 2011, which could lead to excessive adhesion at the limiting hole 2011 during core pulling of the housing 5, resulting in damage to the housing 5. Therefore, based on the above structural design, the yield of the housing 5 can be improved.

[0055] In one or more embodiments, reference is made to Figure 8 As shown, the mold structure also includes a fixed mold body 4, which is shaped to fit the moving mold body 1 to form a second cavity that connects to the first cavity.

[0056] In this embodiment, the mold structure may further include a fixed mold body 4, which is a stationary component in the mold structure for forming the housing of the atomizing device, and its shape matches that of the moving mold body 1 to form a second cavity that connects to the first cavity. The first cavity and the second cavity cooperate to form the complete cavity of the housing 5. The fixed mold body 4 and the moving mold body 1 may be distributed vertically or horizontally (or rear-to-rear).

[0057] In one or more embodiments, if the fixed mold body 4 and the moving mold body 1 are vertically distributed, during the demolding of the housing 5, the moving mold body 1 can be moved first, causing the moving mold body 1 and other components located on the moving mold body 1 to descend away from the fixed mold body 4, thereby achieving the first demolding of the housing 5 and demolding the portion of the housing 5 in contact with the fixed mold body 4. Then, the insert assembly 2 and the ejector pin 3 descend synchronously, moving away from the moving mold body 1, thereby achieving the second demolding (core pulling) of the housing 5 and demolding the portion of the housing 5 in contact with the insert assembly 2. At this time, the housing 5 is positioned by the limiting groove 101 on the moving mold body 1. Finally, the ejector pin 3 abuts against the moving mold body 1, causing the moving mold body 1 to disengage from the limiting groove, achieving the third demolding of the housing 5, i.e., the complete demolding of the housing 5.

[0058] Because the second demolding of the housing 5 by the first insert 21 (which can also be understood as core pulling) greatly reduces the contact area between the housing 5 and the mold structure, it significantly reduces the adhesion between the housing 5 and the moving mold body 1 during demolding, thereby reducing the force load on the ejector pin 3. Simultaneously, the through hole 201 limits the radial offset of the ejector pin 3, preventing excessive radial load on the ejector pin 3 and potential breakage. This improves the structural stability of the ejector pin 3 and avoids situations where the high viscosity of the housing 5 material leads to easy breakage of the ejector pin 3. This enhances the operational stability of the mold structure and increases the production efficiency of the housing 5.

[0059] In summary, this application discloses a mold structure for molding the shell of an atomizing device. A first cavity is formed by the cooperation of a moving mold body 1, an insert assembly 2, and an ejector pin 3. During demolding of the shell 5, the insert assembly 2 moves away from the limiting groove 101, thus pulling the core of the shell 5. Then, the ejector pin 3, which is slidably disposed within the through hole 201, moves along the through hole 201 towards the limiting groove 101, ejecting the shell 5 out of the first cavity to complete demolding. The through hole 201 disperses the radial load on the ejector pin 3, and the ejection force required from the ejector pin 3 after core pulling is greatly reduced. This improves the structural stability of the ejector pin 3, preventing the ejector pin 3 from easily breaking due to the high viscosity of the shell 5 material. This improves the operational stability of the mold structure and increases the production efficiency of the shell 5.

[0060] The above-described specific examples are for illustrative purposes only and are not intended to limit the scope of this invention. Those skilled in the art to which this invention pertains can make various simple deductions, modifications, or substitutions based on the concept of this invention.

Claims

1. A mold structure for forming the housing of an atomizing device, characterized in that, The mold structure includes: A moving mold body, the moving mold body having a limiting groove and a core-pulling cavity, the limiting groove communicating with the core-pulling cavity, and the limiting groove being used to limit the position of the shell; An insert assembly is movably embedded in the core-pulling cavity, which can face or turn away from the limiting groove, and the insert assembly includes a through hole. When the insert assembly moves away from the limiting groove, it can pull the core of the housing. An ejector pin is provided to close one end of the through hole to cooperate with the insert assembly and the moving mold body to form a first cavity. The ejector pin is slidably disposed in the through hole and is used to eject the housing in the first cavity when it moves along the through hole toward the limiting groove.

2. The mold structure for forming the housing of an atomizing device according to claim 1, characterized in that, The moving mold body has a stepped limiting edge, which defines the limiting groove and restricts the movement of the insert assembly.

3. The mold structure for forming the housing of an atomizing device according to claim 1, characterized in that, The through hole includes a limiting hole and a connecting hole. The connecting hole communicates with the limiting hole, and the limiting hole is located at the end of the connecting hole facing the limiting groove. The ejector pin is slidably disposed in the connecting hole, and the first cavity includes the limiting hole.

4. The mold structure for forming the housing of an atomizing device according to claim 3, characterized in that, The insert assembly includes a first insert and a second insert, the limiting hole is formed in the first insert, the connecting hole is formed in the second insert, the second insert is embedded in the first insert, and the ejector pin passes through the second insert.

5. The mold structure for forming the housing of an atomizing device according to claim 3, characterized in that, The end of the ejector pin near the limiting hole is flush with the end of the connecting hole near the limiting hole. The limiting hole is a tapered hole, and the tapered hole has the smallest size at the end near the connecting hole.

6. The mold structure for forming the housing of an atomizing device according to claim 3, characterized in that, The limiting hole is a slow wire cutting hole.

7. The mold structure for forming the housing of an atomizing device according to claim 1, characterized in that, The width of the core-pulling cavity gradually narrows from the opening near the core-pulling cavity to the direction near the limiting groove.

8. The mold structure for forming the housing of an atomizing device according to claim 3, characterized in that, The limiting hole includes a first groove and a second groove, which are connected. The second groove is located close to the ejector pin, and the diameter of the second groove is smaller than the diameter of the first groove.

9. The mold structure for forming the housing of an atomizing device according to claim 3, characterized in that, The number of limiting holes is set to at least two, and the number of ejector pins is adapted to the number of limiting holes.

10. The mold structure for forming the housing of an atomizing device according to claim 1, characterized in that, The mold structure also includes a fixed mold body, which is shaped to cooperate with the moving mold body to form a second cavity that connects to the first cavity.

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